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kebaldwin
Thu, Jul-05-07, 08:22
LE Magazine July 2007

Testosterone’s Overlooked Role in the Treatment of Diabetes in Men

By Edward M. Lichten, MD


For most of my 60 years, I’ve dreamed of finding a medical treatment or cure that could improve humankind. It has been my mission and lifetime quest.

Fifteen years ago, I rediscovered the reparative properties of bioidentical testosterone. It not only reversed my slide into old age, but also reversed my male patients’ diabetes. A hospital-supervised study soon followed, showing that testosterone replacement for men with diabetes was more important than oral diabetic medications, and for some, more important than insulin.

What I could not imagine then was that almost every diabetes specialist, my affiliated national hospital chain, and the state-supervised health insurance carrier would brand me an “enemy of the state” and move to destroy my medical practice and credibility. The American Medical Association provided no support.

This is the story of the inexpensive hormone that can displace up to $20 billion in direct pharmaceutical sales yearly—if only the truth becomes known.

Historical Perspective
In the First World War, an unsubstantiated report alleged that a dead soldier’s testicles were transplanted into the abdominal wall of a man with gangrene. The story goes that the man recovered and did not require amputation. This story might have been considered whimsical, were it not for the work of the Danish physician Jens Moller, MD, between 1950 and 1984.1 Dr. Moller and approximately 250 other European doctors used injections of bioidentical testosterone to treat diabetes, gangrene, and related heart disease in more than 10,000 male and female patients. Dr. Moller’s enthusiasm overshadowed the observation that the high testosterone dosages used increased the incidence of heart disease in the women who were treated. This led to his public humiliation, a disbanding of the European physicians, and a misconception that testosterone is dangerous.

Personal Experience
When I turned 45, I “crashed” seemingly overnight, transformed from an enthusiastic, hard-working, physically potent man to a depressed, lethargic, and exhausted old man. My symptoms included night sweats so extreme that I had to take two showers every night. My colleagues had no idea what to do; one offered to admit me to the hospital to seek an answer. As a physician, however, I knew the hospital offered no answers.


I discovered the cause of this malaise from observations made by older patients in my gynecology practice. Two women told me that their 70-year-old husbands had the same symptoms. This compelled me to conduct “menopausal” laboratory tests on my own blood. The fortunate result is that I was one of the first men to be recognized as “andropausal” (experiencing symptoms of “male menopause”). With this newfound information, I asked my urologist about testosterone replacement. He told me that no one believed in testosterone for men, it was too dangerous, and that the laboratory tests were best explained by the many menopausal women I was treating in my practice—in other words, they had influenced my lab test results!

I searched the literature, found a doctor who believed in testosterone replacement, and began testosterone replacement therapy in 1995. My life has never been sweeter since I began “drinking from my own bioidentical fountain of youth.”

Pictures on my website testify to the dramatic changes in my physical appearance. At 42, I appear tired and wrinkled. At 52, I look muscular and lean, with a renewed enthusiasm radiating from my body and face. My female patients noticed the difference and were intrigued, as low-dose testosterone replacement therapy was a mainstay of my treatment of menopausal women. Worried about their husbands’ erectile dysfunction, lack of libido, and general health, they asked me if I would treat their husbands. I consented, and soon found myself treating “Joe,” a five-foot, ten-inch, 295-pound man with adult-onset diabetes.

Case Histories
At the age of 48, Joe confided that he was worried about living long enough to see his daughter grow up. Once physically active, he could barely walk up a flight of stairs without becoming breathless. He knew that being diabetic severely affected his heart, and he could not lose weight, though he had tried.After performing a glucose tolerance test with insulin levels, I determined that Joe was an early diabetic. I began administering weekly testosterone injections and monitoring Joe’s blood sugar levels. During the first week of treatment, Joe’s blood glucose dropped into the normal range. He felt better and was able to walk up the stairs without difficulty.

During the first month of treatment, Joe lost 20 pounds without even trying. The second month, he joined a gym and lost another 20 pounds. After the third month, Joe had lost another 10 pounds. After a year of testosterone replacement, Joe weighed 215 pounds—80 pounds less than at the onset of treatment. At 18 months, his repeat glucose tolerance test and insulin and testosterone parameters were normal. Now able to run on a treadmill for 90 minutes, Joe was clinically no longer a diabetic. When his wife received her biweekly testosterone injection, she reported that her husband’s bioidentical hormone replacement program with testosterone was more effective than prescription medications like Viagra® in enhancing his sexual function.

In the hospital, “Hugh,” a 59-year-old insulin-dependent diabetic, was scheduled to undergo amputation of his finger. He had developed an infection from repeated glucose-testing lancets, which had eaten away the tissue all the way to the bone. In the hospital, Hugh was listless, unshaven, had no appetite, and displayed the ominous “Q-sign” (tongue hanging out the side of his mouth). As a family friend, I was beseeched to do something, so I offered an injection of short-acting testosterone. The hospital was in an uproar, as this was considered an unapproved therapy for diabetes.

Hugh’s blood sugar dropped 50 points the first day after the injection, and he got out of bed, shaved, and ate his meals. With two more injections that week, his finger started to heal, and the amputation was cancelled. After Hugh returned home, his wife forbade any more testosterone injections. He no longer suffered from erectile dysfunction. Although Hugh died of cardiac disease four years later, he died with his finger healed and intact.

The Diabetes Conspiracy: What You Need to Know

As men grow older, their levels of the essential androgen hormone testosterone decline dramatically. This phenomenon has been termed andropause, or the male equivalent of menopause.

Decreasing testosterone levels have been linked to age-related health ailments such as erectile dysfunction, muscle wasting, and, perhaps most notably of all, diabetes.

Restoring youthful levels of testosterone may help avert diabetes, helping aging men decrease their reliance on diabetes medications. Clinical experience shows that testosterone therapy helps improve blood sugar control, boost energy levels, support sexual health, promote wound healing, and restore a more youthful appearance.

Many people, even leading doctors, are unaware of testosterone’s many benefits. Not only is testosterone effective in offsetting age-related changes, it is also inexpensive and safe. Drug company profits would plummet if testosterone therapy was more widely used to treat aging men.

All men over the age of 35 should have their levels of testosterone—along with blood lipids, glucose, and prostate-specific antigen—tested to assess their overall well-being and to determine whether they may benefit from testosterone replacement therapy.



Clinical Success Leads to Hospital Study
Armed with this information, I approached my colleague James Sowers, MD, a
professor at Wayne State University in Detroit. Dr. Sowers is considered one of America’s foremost authorities on diabetes. Dr. Sowers was intrigued by my observations, and we devised a pilot study for diabetic men in 1997. After baseline blood work and testing of their sex hormones (testosterone, estradiol, sex hormone-binding globulin), prostate-specific antigen (PSA), and glucose with insulin, the volunteers would be treated with monthly testosterone implants. They would be seen monthly for three months while on testosterone, and then for four months while off the testosterone injections. Testing occurred at regular one-month intervals.

One limitation of standard medical care is that the physician rarely performs a glucose tolerance test and almost never performs the corresponding insulin measurements. Any deviation from optimal glucose tolerance suggests metabolic syndrome, pre-diabetes, and/or insulin resistance. When blood sugar is high, glucose molecules join hemoglobin, forming glycated or glycosylated hemoglobin in red blood cells, termed hemoglobin A1c (HbA1c). HbA1c levels greater than 6% indicate long-term elevation of blood sugar levels, which has been associated with increased risk of diabetic complications.

In the 1997-1999 pilot study, 35 adult men with diabetes volunteered for treatment. Fifteen men were already on insulin, and 10 were considered “brittle” diabetics, as they used 80-120 units of insulin per day and were prone to precipitous drops in blood sugar called hypoglycemia. Since a hypoglycemic attack can result in coma or death, few doctors aggressively work to lower these patients’ blood sugar levels to achieve a preferred 6% HbA1c blood reading.

Our initial evaluation showed that every man who was diabetic was low in testosterone. (Ten years later, Harvard scientist Eric Ding similarly noted that low testosterone was associated with an elevated risk of diabetes.2) Our laboratory measurements relied not only on the absolute number of total testosterone (reference range: 251-1000 ng/dL), but also on the measurement of bioavailable (that is, circulating and usable) free testosterone.

Having no preconceived expectation, the study followed the insulin-requiring adult diabetics for three months. Most of the participants reduced their insulin requirements by half, without changing their hemoglobin A1c. Men who previously needed 120 units of insulin now needed 60 units; those who previously used 80 units now needed only 40. However, our next observation may be destined to change the treatment of diabetes forever. We found that the diabetic men on testosterone injections not only had better glycemic control, but also had no dangerous hypoglycemic attacks.

Testosterone therapy also produced impressive results in men with adult-onset diabetes who were managing their condition with therapeutic diet and oral medications but not insulin. This group of 20 men comprised two groups. The two-hour glucose tolerance test with insulin showed that six of the men were “early” diabetics, with a pattern of hypersecretion of insulin and low testosterone. With testosterone replacement and a normalization of free testosterone levels, many of these men were able to discontinue their use of oral hypoglycemic agents and improve their HbA1c levels. For those who could not reach an HbA1c level of 6%, therapy was restarted with the most inexpensive generic hypoglycemic agents. These men on testosterone therapy were uniformly pleased with their reawakened vigor, the loss of inches from their waistlines, and improved workout performance.

However, for the 14 men with adult-onset diabetes who were taking oral medications, their personal physicians had not realized they were in fact in the “burned out” stage of the condition, meaning that there was very little pancreatic insulin-producing capacity. The insulin part of the glucose tolerance test showed no fourfold increase in insulin value at one or two hours— instead, the numbers were flat and relatively unchanged. Therefore, these men—who represent more than half of adult men on oral agents—were taking expensive medications that were practically worthless for them. Some of the men were able to achieve better blood sugar control using testosterone alone, while some would eventually develop a need for insulin.

TABLE 1. Testosterone Improves Blood Sugar, HbA1c in “Anthony,” a 50-Year-Old Diabetic
Date 24-hour
Long-acting
insulin use
Glucose
(mg/dL) HbA1c
(%) Testosterone
(ng/dL) Sex Hormone-
Binding Globulin
(nmol/mL) Treatment: weekly
testosterone
injections
7/18/06 14 units 488 >18 643 38 2
7/29/06 30 units 141 15.7 — — 2
8/06/06 40 units 154 15.2 — — 1.5
8/12/06 50 units — 13.5 953 — 1
8/28/06 60 units 161 11.8 493 — 1
9/02/06 70 units 165 11.2 522 — 1
9/15/06 75 units — 10.1 — — 1
9/22/06 80 units 308 9.5 894 — 1
10/28/06 75 units 47 8.3 — — 1
11/14/06 75 units 135 7.9 297 — 1
12/18/06 88 units 175 7.7 — — 1.5
1/27/07 100 units 65 7.4 792 — 1.5


Continued on Page 2 of 2


--------------------------------------------------------------------------------
LE Magazine July 2007

Testosterone’s Overlooked Role in the Treatment of Diabetes in Men

By Edward M. Lichten, MD
Testosterone Helps Avert Dangers of Diabetes Treatment

When “Charles,” an insulin-requiring diabetic on 100 units per day, came for a follow-up visit, I was surprised to see his finger-stick glucose at the low value of 37 mg/dL. When questioned, he told me that his internist had called him the night before, alarmed at the low glucose reading from a blood sample sent to a national laboratory. Charles had no symptoms, though he knew the symptoms of hypoglycemia and impending coma. I instructed him to reduce his insulin by another 10 units per day, and he agreed to do so. But why didn’t his blood sugar levels crash?

According to the medical literature, including a report by Tiblin,3 testosterone sensitizes men’s cells to more readily admit glucose. In other words, it decreases insulin resistance in men. Therefore, whatever insulin is available in men works much more efficiently in the presence of testosterone. Of note, the female hormone estradiol works counterproductively for men, worsening insulin resistance.2,4

My continuing studies may help explain why the men I have treated with testosterone seem to be protected against developing hypo-glycemia and its complications. It is possible that the secondary role of testosterone could be to accelerate not only the conversion of glucose to stored cellular glycogen in the blood, but also to reverse the process when needed, thus accelerating the conversion of stored tissue glycogen to serum glucose.5 This could explain my observation that diabetic men on testosterone injections seem to be protected from hypoglycemia-related coma and death.

The Diabetes Explosion
Diabetes is fast becoming a global pandemic of nearly unimaginable proportions. Its incidence is approaching 25% of the general population over 60. With the development of adult-onset or nutritional diabetes in teenagers and adolescents,and its predilection for dark-skinned individuals, it is estimated that one in three children born in the United States today will become diabetic.10

Clearly, it is time to embrace new therapeutic approaches to averting this crippling disease. Testosterone therapy may be one of the most promising new approaches for men seeking to prevent and manage diabetes and other conditions associated with poor blood sugar control.


Given this unique effect of testosterone, tighter blood sugar control can be more easily achieved. I have routinely lowered insulin-requiring diabetic men from HbA1c levels of 8-11% to a range of 6-7%. This improved long-term blood sugar control could potentially reduce morbidity, mortality, and health care costs by as much as 75%! I believe that widespread implementation of this therapeutic approach could mean fewer heart attacks, strokes, attacks of blindness, and men tethered to dialysis. Diabetic men can and should live longer and live better.

Another interesting patient of mine was “Anthony,” a 50-year-old African-American male without insurance, employment, or regular meals, let alone medication. As shown in Table 1 above, his fasting glucose was 488 mg/dL and his HbA1c was greater than 18%. I immediately treated Anthony with twice the standard dose of testosterone and tracked his blood sugar daily. Over the next four months, I titrated Anthony’s long-acting insulin from 20 units to 90 units per day, and continued a sliding scale of regular insulin at approximately 20 units per day with meals.

What I never expected was how quickly Anthony’s intracellular glycogen stores would normalize. In four weeks, his HbA1c dropped from 18 to 15.7%; at three months, it was 11%; and at five months, it was 7.4%.The Journal of the American Medical Association6 reported that in the best of circumstances, only 40% of insulin-dependent men could achieve an HbA1c level of 8% or lower. Yet I had driven the worst diabetic from a level of 18% to 7.4%. Best of all, the full potential of Anthony’s treatment had not even been realized, since it had been only five months.

Anthony suffered memory lapses originating from the high glucose in his bloodstream and brain tissue. This is not unusual for uncontrolled diabetics. One evening, he injected 30 units of regular, short-acting insulin instead of his usual long-acting insulin. He called me and I advised him to eat his dinner and check his glucose levels every two hours. Anthony’s glucose testing never showed a value below 129 mg/dL. Another time, he awoke at 4 a.m., took his regular insulin, and went back to bed without eating. His morning glucose was in the range of 80-90 mg/dL. Remarkably, he suffered no blood sugar “crash,” coma, or severe symptoms.

The “Found the Cure” Foundation
To publicize the fact that there are
natural, inexpensive cures for many
diseases, I created the “Found the Cure” Foundation. As part of this effort, I
continue to travel to medical and
hospital groups in the United States and worldwide to demonstrate one- and three-month testosterone-injection protocols for treating male menopause, diabetes, and heart disease, and female menopause,
low libido, and osteoporosis. More information about these simple, safe, and inexpensive biological methods for disease
management can be obtained by downloading my book The Diabetes Conspiracy, which outlines treatments that make standard prescription medications for insomnia, PMS, migraine, menopause, osteoporosis, and cholesterol reduction obsolete.
For more information, please visit www.foundthecure.com.


As shown in Table 1, no matter how much testosterone was given to Anthony, his total testosterone never exceeded the upper limits of normal for men (1000-1200 ng/dL). He never developed polycythemia, a high red blood cell count that is the most common complication of continuous testosterone injections. (Its solution is simple: donate blood to the Red Cross once every four months.)

I have the same goal as all doctors who treat diabetes: an HbA1c of 6.0%. In my office, with time and cooperation from my patients, almost all men are stabilized with an HbA1c of 6-7%. Glucose levels below 110 mg/dL are common in my patients with diabetes.

Just last year, Dr. Dheeraj Kapoor7 published a study of 20 diabetic men reporting improvement in glycated hemoglobin (HbA1c), fasting blood glucose, insulin sensitivity, waist circumference, and blood lipid levels. Testosterone is an important and beneficial treatment for diabetic men—perhaps even more so than insulin. While insulin is applicable to 10% of men with type II diabetes, testosterone could be useful to almost 100%. Simple, effective, inexpensive, and safe, testosterone is truly man’s best adjunct for a long and healthy life—whether or not he has diabetes.

Risks of Testosterone Therapy
For insulin-requiring diabetic men without contraindications, doctors can administer testosterone injections and follow patients’ improved glycemic control, reducing their insulin requirements accordingly. Not only will the improved glycemic control reduce morbidity (disease incidence), but testosterone replacement may produce beneficial effects for the heart, bones, memory, mood, sexual performance, and red blood cell production, which could reduce the risk of numerous conditions—not only heart attack, Alzheimer’s disease, and osteoporosis, but also dialysis-associated anemia.

In documented cases, men receiving kidney dialysis required less anemia medication when they were receiving treatment with an anabolic steroid.8 If hospitals incorporated testosterone protocols for men undergoing dialysis, more than one third of costs related to anemia medications such as Epogen® might be eliminated.

The risk of infection, bleeding, and potential allergic reaction to the sesame oil used as a carrying agent in the testosterone injection is small. The risks, expounded in the literature, are those related to prostate and testicular cancer. It is a contraindication to use testosterone in the presence of prostate cancer. Yet I have had only one male patient in the last 10 years who developed prostate cancer while on testosterone therapy. In fact, that patient was instructed to go back on testosterone by his doctor at the Mayo Clinic after only two years of observation post-surgery.

A study by Dr. Abraham Morgentaler9 found that testosterone may be protective against prostate cancer. In a large study of men with low testosterone and normal prostate-specific antigen (4 ng/mL or lower), up to one in three had biopsy-proven prostate cancer. Men with total testosterone levels of 250 ng/dL or less had almost twice the incidence of prostate cancer compared to men whose levels were above 250 ng/dL. It is possible that inadequate testosterone levels in men are associated with a higher risk of prostate cancer!

From a medical and health perspective, doctors should have the appropriate laboratory tests performed on all male patients over 35 years of age, especially those with suspected health issues. Without the HbA1c, a physician would not suspect that so many men have long-term elevations in blood sugar. For those who prefer to be tested before seeing a physician, blood tests can be ordered through the Life Extension Foundation.

Conclusion
Thousands of years ago, it was recognized that castration took away a male’s manhood, both physically and emotionally. Today, hormones in our food supply (such as bovine growth hormone) and environmental xenoestrogens (synthetic substances that imitate the effects of estrogens, such as bisphenols and phthalates) may contribute to the dramatic decline in bioavailable testosterone and sperm count that has been observed in American men over the past 50 years. This same period has coincided with a meteoric rise in the incidence of diabetes and heart disease in the US.

Optimizing testosterone levels may provide men with powerful protection against the risk of premature death and diseases such as diabetes, heart disease, osteoporosis, Alzheimer’s, and even prostate cancer.

Edward M. Lichten, MD, FACS, is a Fellow of the American College of Surgeons and a Fellow of the American College of Obstetricians and Gynecologists. Dr. Lichten can be contacted through www.usdoctor.com or by calling 866-532-4254 or 248-593-9999.

The Diabetes Conspiracy

In 1999, Blue Cross visited my medical office for what I was told was a routine audit. Although I was seeing 150 patients a week, 50 weeks a year, the “routine” Blue Cross audit involved almost 3,000 records. While the reviewer complimented me on my

97% documentation rate, Blue Cross responded by requesting that I repay them $138,000 and submit to a continuing or “rolling” audit. That was after they sent investigators to the homes of many patients who had had procedures done in the office, looking for even one case of a procedure “billed but not done.” They even told my patients that I was under investigation for “fraud” (though years later a Blue Cross attorney admitted that it was, in fact, a fraudulent audit).

While this matter was pending discussion by the attorneys, in January 2004 Blue Cross placed me in the Pre-Payment Utilization Review (PPUR) program. This is the “dead-letter” box: no matter how extensive the typed medical record notes, or how many laboratory results sheets were attached or operative notes included, there was little or no payment from Blue Cross. Since Blue Cross was the insurance of more than 85% of my patients, within six months I lost my savings, my practice, and more than $300,000 in income.

When I resumed my practice in Michigan in May 2005, I no longer participated with Blue Cross, instead collecting my professional fees directly from my patients. However, in September 2005, the PPUR program head notified me that I was still in PPUR. Then the PPUR division did the unthinkable, in violation of Michigan law and the state organizational charter for Blue Cross: they refused to reimburse my patients for nearly every professional service rendered in my office. One letter to a patient from the PPUR program leader went so far as to suggest that the patient get another doctor. To others, they stated, “I am so sorry that Dr. Lichten is your doctor.”

Although I had met with the PPUR personnel and physicians in April 2004 and again in September 2006, they ignored the matter. All of these abusive and destructive actions had occurred after Blue Cross had learned of my scientific rediscovery and breakthrough treating diabetic men with inexpensive testosterone injections. No doctor, administrator, or anyone from their legal team would face the obvious—why attack a doctor who could save Michigan $50 million in medication expenses in the first year? Couldn’t there be a potentially tenfold savings in medical expenses related to hospitalizations, amputations, heart attacks, and blindness treatments? Even a Blue Cross executive admitted that this action by the PPUR division was highly unusual. But no one at Blue Cross would stop this abuse that had been going on for seven years, starting with that first unannounced audit.

As the investigators will attest, every major carrier—except Blue Cross Blue Shield of Michigan—pays for my services. I am a medical doctor with 35 years of experience as a physician, researcher, and educator. I continue to write, lecture, and educate my colleagues. I have published more than 33 peer-reviewed publications, given 80 local, national, and international lecture presentations, and am considered one of the foremost innovators in the treatment of menstrual pain, migraine, menopause, and now diabetes.



References
1. Moller J. Cholesterol: Interactions with Testosterone and Cortisol in Cardiovascular Diseases. Berlin: Springer-Verlag; 1987.

2. Ding EL, Song Y, Malik VS, Liu S. Sex differences of exogenous sex hormones and risk of type II diabetes.

JAMA. 2006 Mar 15;295(11): 1288-99.

3. Tibblin G, Adlerberth A, Lindstedt G, Bjorntorp P. The pituitary-gonadal axis and health in elderly men: a study of men born in 1913. Diabetes. 1996 Nov;45(11):1605-9.

4. Barud W, Piotrowska-Swirszcz A, Ostrowski S, Palusinski R, Makaruk B. Association of obesity and insulin resistance with serum testosterone, sex hormone binding globulin and estradiol in older males. Pol Merkur Lekarski. 2005 Nov;19(113):634-7.

5. Bergamini E. Different mechanisms in testosterone action on glycogen metabolism in rat perineal and skeletal muscles. Endocrinology. 1975 Jan;96(1):77-84.

6. Hayward RA, Manning WG, Kaplan SH, Wagner EH, Greenfield S. Starting insulin therapy in patients with type 2 diabetes: effectiveness, complications, and resource utilization. JAMA. 1997 Nov 26;278(20):1663-9.

7. Kapoor D, Goodwin E, Channer KS, Jones TH. Testosterone replacement therapy improves insulin resistance, glycaemic control, visceral adiposity and hypercholesterolaemia in hypogonadal men with type 2 diabetes.

Eur J Endocrinol. 2006 Jun;154(6):899-906.

8. Gascon A, Belvis JJ, Berisa F, Iglesias E, Estopinan V, Teruel JL. Nandrolone decanoate is a good alternative for the treatment of anemia in elderly male patients on hemodialysis. Geriatr Nephrol Urol. 1999;9(2):67-72.

9. Morgentaler A, Rhoden EL. Prevalence of prostate cancer among hypogonadal men with prostate-specific antigen levels of 4.0 ng/mL or less. Urology. 2006 Dec;68(6):1263-7.

10. No authors listed. Type 2 diabetes in children and adolescents. American Diabetes Association. Diabetes Care. 2000 Mar;23(3):381-9.

http://www.lef.org/magazine/mag2007/jul2007_report_diabetes_01.html

kebaldwin
Thu, Jul-05-07, 08:29
Male Hormone Restoration
Updated: 07/17/2006
As men age, they begin to experience changes in their bodies. Abdominal fat increases and muscle mass decreases. They also experience a distressing decline in their sex drive. At the same time, the risk of serious health conditions such as depression and heart disease rises. While most conventional physicians (and some members of the lay media) dismiss these woes as signs of “natural aging,” there is often an underlying and identifiable cause of these symptoms—the gradual decline of important sex hormones, especially testosterone.

Too often, men who have problems related to a low testosterone level are advised to treat only the symptoms of their conditions (such as taking antidepressant and/or cholesterol-lowering drugs). Fortunately, progressive physicians, along with the Life Extension Foundation, now recognize the connection between hormones and the diseases of aging. Restoration of youthful hormone levels is associated with optimal sexual function, energy, and vitality, while declining hormone levels correlate with many age-related conditions, including high blood pressure, atherosclerosis, diabetes, loss of muscle and bone mass, and fatigue (Shores MM et al 2004).

Factors That Affect Testosterone Levels
Testosterone, which is abundantly produced during puberty, is responsible for the development of secondary sexual characteristics and has profound effects throughout the body. Testosterone receptors are found in virtually all body tissues, so levels of testosterone affect the function of most organ systems. For example, testosterone causes growth of facial and body hair in skin cells, increased fiber size and strength in muscle cells, and maturation of the external genitalia. The effects of testosterone on the central nervous system are also well-known (Okun MS et al 2004). Testosterone governs such behaviors as aggression, risk taking, and territoriality. It is now recognized as an important factor in mitigating depression (King JA et al 2005).

As with all sex hormones, testosterone is part of a cascade that begins with cholesterol, the building block for hormones. Pregnenolone, the “master hormone,” is produced directly from cholesterol. In turn, dehydroepiandrosterone (DHEA; a precursor to testosterone), testosterone (and its metabolites), and estrogen (and its metabolites) are produced from pregnenolone. Both testosterone and estrogen are produced by enzymatic reactions from DHEA. This ubiquitous molecule is the steroid found in highest quantities in humans. Changes in the supply of DHEA (and/or changes in the levels of the enzymes that convert DHEA to the sex hormones) can have powerful effects on sex hormone–dependent systems.

As men age, a number of changes occur that reduce the testosterone level available to the body and that alter the ratio between testosterone and the chief female hormone, estrogen. This condition is now referred to as partial androgen deficiency of aging men (Harman SM 2005).

One of the most important factors that affect testosterone levels of aging men is an enzyme called aromatase, which is found in fat tissue. This enzyme is responsible for converting testosterone into estrogen, thus altering the ratio of estrogen to testosterone (Steiner MS et al 2003). Men who have excessive body fat, especially abdominal fat, are likely to have increased estrogen levels caused by aromatase activity and a dramatically increased estrogen level compared to testosterone. An increased estrogen level has been linked, in turn, to a host of disorders, including decreased insulin sensitivity and blood glucose problems. Some studies suggest that there is an association between a low testosterone level, insulin resistance, an elevated estrogen level, and increased body fat in aging men (Phillips GB 1993).

This relationship between low testosterone and obesity has been described as the hypogonadal/obesity cycle. In this cycle, a low testosterone level leads to an increase in abdominal fat, which leads to increased aromatase activity, which leads to further conversion of testosterone to estradiol, which further reduces testosterone and increases the tendency toward abdominal fat (Cohen PG 1999).

The effect of sex hormones on tissues is also affected by the level of sex hormone–binding globulin (SHBG). Sex hormones circulate in the bloodstream in very small quantities as free molecules. The bulk of sex hormones are bound to SHBG, which is a specialized carrier protein (Nankin HR et al 1986). Hormones bound to carrier molecules are inactive, so the amount of SHBG has an important impact on the degree to which tissues respond to sex hormone levels (Misao R et al 1999; Zmuda JM et al 1993; Dambe JE et al 1983; Van Look PF et al 1981). Nutritional status and the levels of other hormones are among the factors that determine levels of SHBG.

Aging men who have an androgen deficiency experience both an increase in aromatase activity and an elevation in SHBG production. The net result is to increase the ratio of estrogen to testosterone and lower the total testosterone level (Killinger DW et al 1987; Kley HK et al 1980a,b). Finally, it is important that aging men also strive for optimal liver function. The liver is responsible for removing excess estrogen and SHBG, so any compromise in liver function (such as that caused by heavy alcohol consumption, for example) can exacerbate hormonal imbalances.

Effects of Age-Related Decline in Testosterone Levels
The exact causes of the age-related reduction in testosterone levels is not known; it is probably the result of a combination of factors, including increased body fat (and therefore increased aromatase activity), oxidative damage to tissues responsible for the production of testosterone, and declining levels of precursor molecules such as DHEA. The results of the decline, however, are strikingly apparent.

Nervous system effects. Low testosterone levels have been associated with depression and other psychological disorders (Barrett-Connor E et al 1999b; Rabkin JG et al 1999; Schweiger U et al 1999; Seidman SN et al 1999; Moger WH 1980). In addition, many conventional antidepressants suppress libido. Some experts recommend that patients whose reduced libido is caused by taking antidepressants undergo testing to have their testosterone levels checked—and that they get supplemental treatment if necessary. Others suggest that testosterone therapy might reduce the need for the antidepressants themselves (Goldstat R et al 2003; Morley JE 2003). Feelings of well-being are often reported with testosterone treatment (Carnahan RM et al 2004; Dunning TL et al 2004; Orengo CA et al 2004; Wright JV et al 1999).

Cognition and alertness are also governed in part by testosterone’s effects on the central nervous system (Cherrier MM et al 2004; Cherrier MM et al 2001; Janowsky JS et al 2000). Low testosterone levels have been shown to correlate with lower scores on various psychometric tests (Moffat SD et al 2002; Barrett-Connor E et al 1999a; Janowsky JS et al 1994). Similar effects have been reported in men taking androgen-deprivation therapy for prostate cancer (Salminen EK et al 2004). Testosterone’s ability to protect nerve cells against a variety of toxins, including oxidative stress (Ahlbom E et al 2001) and the Alzheimer’s protein beta-amyloid (Zhang Y et al 2004; Hammond J et al 2001), may explain the low testosterone levels found in men who have neurodegenerative diseases (Hogervorst E et al 2004; Okun MS et al 2004; Ready RE et al 2004).

Sexual enjoyment and function. Falling levels of free testosterone diminish sexual desire, as well as pleasure and performance in sexual activity. There is evidence that, in men with low free testosterone levels, replacement therapy can improve sexual function (Tenover JL 1998; Anderson RA et al 1992; Ahmed SR et al 1988; Davidson JM et al 1982).

Cardiovascular disease and metabolic syndrome. There is a clear relationship between low levels of testosterone and increased incidence of cardiovascular disease, particularly as testosterone level relates to metabolic syndrome (Dobrzycki S et al 2003; Hak AE et al 2002; Zhao SP et al 1998; Jeppesen LL et al 1996). Metabolic syndrome is the combination of abdominal obesity, high blood pressure, insulin resistance, and lipid disorders in the same person. This condition is associated with a high risk of cardiovascular disease. Studies have shown that testosterone administration (500 milligrams [mg] of intramuscular injections) in middle-aged, obese men was able to increase insulin sensitivity (Marin P et al 1992a). These results were confirmed in another study in which testosterone treatment led to reduced insulin resistance (Marin P et al 1992b). Later studies also showed that testosterone administration is helpful in the context of metabolic syndrome (Bhasin S 2003; Boyanov MA et al 2003).

The musculoskeletal system. Bone integrity depends upon a balance between bone formation and bone resorption, which are controlled by multiple factors including estrogen and testosterone (Rucker D et al 2004; Tok EC et al 2004; Valimaki VV et al 2004). One clinical trial has demonstrated that testosterone increases bone mineral density in elderly men (van den Beld AW et al 2000). Testosterone supplementation also has a positive effect on muscle metabolism and strength (Herbst KL et al 2004). The effect is undiminished with age, although older men have a greater incidence of adverse effects.

The Importance of Hormone Testing
When testosterone levels are measured, it is critical to determine the levels of both free and total testosterone to understand the cause of any observed symptoms of deficiency or excess (Pardridge WM 1986).

The Life Extension Foundation believes that a comprehensive battery of tests, along with a careful physical examination, is helpful in detecting hormonal imbalances in aging men. If testing is conducted, it is important to remember that blood levels of both free and total testosterone vary widely among individuals, making it difficult to establish a general threshold for treatment. However, levels are quite consistent within individuals, so it is helpful for men to have multiple tests over time to determine trends and individual thresholds for treatment.

It is also important to note that so-called normal levels of testosterone for older men reflect averages in the current population. The Life Extension Foundation believes that most aging men would prefer not to accept the loss of youthful vigor as normal. Instead, we suggest that a more valid optimal range for all men would be in the upper one-third of the range for men aged 21 to 49 years, and that any supplementation should aim to restore hormone levels to that range.

Finally, during the initial testing, it is imperative to also test estrogen levels. Many of the unwanted effects of male hormone imbalance are actually caused by an elevated estrogen level relative to testosterone level (the estrogen/testosterone ratio).

Using Hormone Replacement Wisely
If a man chooses to pursue hormone testing with the intention of using testosterone supplementation (available orally or as an injection, implant, or skin patch), he should keep several facts and precautions in mind (Rhoden EL et al 2004; Schaeffer EM et al 2004):

The patterns and trends over time of multiple hormone levels (such as free testosterone, total testosterone, and estrogen) determine the specific hormone replacements required.
It is not safe to use large amounts of testosterone in any form.
Hormone replacement should not be initiated without comprehensive testing.
Because of the risk of worsening prostate cancer, careful screening for prostate cancer, including a digital rectal examination and prostate specific antigen (PSA) screening, must be done before starting any hormone replacement program.
Certain conditions are contraindications to hormone replacement (Ebert T et al 2005). Prostate cancer, in particular, can be made worse by increasing available testosterone.
A man who is contemplating taking hormone replacement, whether through a prescription or through supplements, should work closely with a qualified physician to plan a rationale approach to treatment and continued monitoring and screening.


Testosterone Therapies
Synthetic anabolic steroids. Synthetic anabolid steroids sold in the form of patches, creams, pellets, and tablets are chemically different from the testosterone made by the body and do not accomplish the same effect as natural testosterone. These drugs are aimed primarily at the musculoskeletal system and are known to have myriad toxic side effects, including causing serious heart and kidney complications. They are sometimes abused by athletes and bodybuilders who want to build muscle mass. A few of the synthetic testosterone drugs that men should avoid using on a long-term basis are methyltestosterone, danazol, oxandrolone, testosterone propionate, cyclopentanepropionate, and enanthate.

Testosterone patches, creams, pellets and tablets. Scientists learned decades ago how to make the identical testosterone that a man’s body produces. However, because natural testosterone could not be patented, drug companies developed all kinds of synthetic testosterone analogues. Currently available recommended natural testosterone drugs include testosterone transdermal patches and testosterone creams, pellets, and sublingual tablets.

Both synthetic testosterone and natural testosterone require a prescription. A physician should prescribe testosterone only after a man’s blood tests have verified that he has a testosterone deficiency.

Alternative physicians usually prescribe testosterone creams (available at compounding pharmacies). Conventional physicians are more likely to prescribe testosterone patches. All forms of natural testosterone are the same and all will markedly increase free testosterone in the blood and saliva.

Testosterone and Cholesterol
Millions of aging men have the dual conditions of low testosterone and high cholesterol. Conventional physicians prescribe cholesterol-lowering drugs to reduce cholesterol when in fact the age-related rise in cholesterol may simply be the body’s way of increasing hormone levels by supplying the raw materials from which hormones are made (Dzugan SA et al 2002). Researchers at the Life Extension Foundation have successfully treated high cholesterol levels through a program of bioidentical hormones that restores these hormones to youthful levels, reducing the body’s need to make excess cholesterol. While this approach has received almost no attention outside of alternative health circles, it may prove to be the link between high cholesterol and hormone-related disorders of aging.


Natural Approaches to Boost Testosterone and Suppress Estrogen
Nutrients function by increasing testosterone availability, often by affecting testosterone’s interaction with SHBG or by decreasing its aromatization (conversion) into estrogen. Natural supplements can complement hormone replacement therapy. For people who choose not to (or should not) use hormone replacement therapy, nutrients can be a vital part of a comprehensive program to reduce the impact of aging on the systems of sex hormone production, regulation, and metabolism. Nutritional therapy also has a role in preventing diseases of the male reproductive tract, such as prostate cancer and benign prostatic hyperplasia (BPH). More specific information on these diseases can be found in the chapters “Prostate Cancer” and “Benign Prostatic Hyperplasia.”

The following is a list of nutrients that are part of the Life Extension Foundation’s comprehensive male hormone modulation program:

Zinc. Zinc is related to testosterone levels. In one animal study, rats subjected to an acute swimming test were either supplemented with zinc or placebo. The study showed that zinc supplementation led to significant increases in testosterone levels and may help in athletic performance (Kaya O et al 2006). Among humans, zinc supplementation in a group of male wrestlers prevented the depletion of testosterone after exertion (Kilic M et al 2006). Additional studies have suggested that zinc is important to the synthesis of testosterone (Ali H et al 2005).

Chrysin. A bioflavonoid called chrysin has shown potential as a natural aromatase inhibitor (Kellis JT Jr et al 1984). Chrysin can be extracted from various plants and is found in high concentrations in honey. Bodybuilders have used it as a testosterone-boosting supplement because, by inhibiting the aromatase enzyme, less testosterone is converted into estrogen. Although chrysin is a known inhibitor of aromatase, in one study it did not result in the expected increase in testosterone levels (Gambelunghe C et al 2003). This may be because of poor intestinal absorption of chrysin (Walle UK et al 1999). The Life Extension Foundation has identified a novel supplement called piperine that increases the bioavailability of chrysin.

Carnitine. Carnitine is an amino acid derivative that may be more active than testosterone in aging men who have sexual dysfunction and depression caused by an androgen deficiency (Cavallini G et al 2004). Both testosterone and carnitine improve sexual desire, sexual satisfaction, and nocturnal penile tumescence, but carnitine is more effective than testosterone in improving erectile function, nocturnal penile tumescence, orgasm, and general sexual well-being. Carnitine was better than testosterone at treating depression (Cavallini G et al 2004).

Muira puama. Muira puama is a South American folk medicine derived from a shrub, Ptychopetalum olacoides, which grows in the Amazon region of Brazil. Also called marapuama and “potency wood,” it is considered an aphrodisiac and an effective treatment of impotence. Because of its purported libido-enhancing properties, muira puama has been the subject of two published clinical studies by Dr Jacques Waynberg, an eminent medical sexologist and author of 10 books on the subject.

The first study, conducted at the Institute of Sexology in Paris under Dr Waynberg's supervision, consisted of examining the effect of muira puama on 262 men who complained of lack of sexual desire or inability to attain or maintain erection. After receiving 1.5 grams (g)/day of muira puama for 2 weeks, 62 percent of the patients with loss of libido rated the treatment as having a dynamic effect, and 52 percent of patients with erectile dysfunction rated the treatment as beneficial (Wright JV et al 1999).

Dr Waynberg's second study, entitled “Male Sexual Asthenia,” focused on sexual difficulties associated with asthenia, a deficiency state characterized by fatigue and loss of strength, both symptoms of a testosterone deficiency. The study population consisted of 100 men older than 18 years who complained of impotence and/or loss of libido. A total of 94 men completed the study, and their conditions were evaluated. Muira puama treatment led to significantly increased frequency of intercourse for 66 percent. Of the 46 men who complained of loss of desire, 70 percent reported intensification of libido. The stability of erection during intercourse was restored in 55 percent of patients, and 66 percent of men reported a reduction in fatigue. Other reported beneficial effects included improvement in sleep and morning erections (Waynberg J 1990).

Cruciferous vegetables. Cruciferous vegetables, such as broccoli and cauliflower, contain isothiocyanates and glucosinolates, which act as antioxidants and potent inducers of phase 2 proteins believed to suppress prostate cancer formation (Kris-Etherton PM et al 2002; Talalay P et al 2001).

Quercetin. Wine contains antioxidant polyphenols and quercetin. One study showed that red wine inhibited aromatase. The study attributed this effect to the quercetin and other ingredients (Eng ET et al 2002). In human colon cancer cells, quercetin has been shown to inhibit local synthesis of estrogen by inhibiting aromatase (Fiorelli G et al 1999).

Saw palmetto and nettle extracts. These two supplements are commonly used to reduce symptoms of BPH. In Europe, saw palmetto (Serenoa repens) has been used extensively as a drug for some time. Saw palmetto’s clinical benefits for prostate enlargement include:

Reduced nocturnal urinary urgency (Boyle P et al 2004).
Increased urinary flow rate (Boyle P et al 2004; Gerber GS et al 2004).
Decreased residual urine volume in the bladder (Giannakopoulos X et al 2002).
Reduced discomfort from urination symptoms (Giannakopoulos X et al 2002; Wilt T et al 2002).
In fact, results of treatment with saw palmetto compare favorably with the prescription drug finasteride, with far fewer adverse effects (Wilt T et al 2002). Similarly, another study compared saw palmetto extract to the prescription drug tamsulosin for 1 year. After the treatment period was over, the symptoms of the patients in both groups had improved, and their PSA scores remained stable. However, the size of the prostate gland decreased only in the group taking saw palmetto, and sexual dysfunction was more common in the group taking tamsulosin. Overall, saw palmetto produced a superior response after only 3 months of treatment, and maintained its superiority (Debruyne F et al 2002). Finally, in a meta-analysis of saw palmetto, researchers found there was an average reduction of 5 points in the International Prostate Symptoms Score (IPSS) across all studies (Boyle P et al 2004).

As with most supplements, it is important to be sure that you are buying the highest quality supplement possible. In the case of saw palmetto, that means supercritical, standardized extracts. Supercritical fluid extraction technology produces an extract of extraordinary purity while leaving behind no solvent residues on the product. The first medicinal herb to benefit from large-scale supercritical fluid extraction was saw palmetto.

While a large number of studies document the benefits of saw palmetto by itself, European physicians frequently prescribe saw palmetto extract that is combined with additional herbs that interfere with other factors involved in prostate enlargement, including nettle root.

Nettle root extract may provide a unique mechanism for increasing levels of free testosterone by binding to SHBG, the globulin that inactivates sex hormones, therefore potentially increasing the amount of unbound, free testosterone (Lichius JJ et al 1997; Schottner M et al 1997; Gansser D et al 1995; Hryb DJ et al 1995; Hirano T et al 1994). Nettle root extract is used extensively, either in combination with saw palmetto or by itself, for relief of BPH symptoms.

In 2005, researchers conducted a randomized, double-blind, placebo-controlled, crossover study of nettle root extract. This is the gold standard of clinical trial formats and is used to rigorously test pharmaceutical drugs before they gain market approval. Almost 600 patients were enrolled in this trial for up to 18 months. At the end of the study, 81 percent of the treated patients experienced significant relief of their symptoms and significant reductions in their IPSS compared with only 16 percent of the control subjects. After the 18-month follow-up, only those patients who continued with the therapy experienced any benefits (Safarinejad MR 2005).

These results were confirmed in another study that examined the effect of saw palmetto combined with nettle root extract on men. Once again, this was a double-blind, placebo-controlled study. In this case, the reduction in IPSS was “clearly superior” among men receiving saw palmetto and nettle root extract, compared to men receiving placebo (Lopatkin N et al 2005).

Nettle root extract has also shown an affinity for SHBG (Hryb DJ et al 1995). SHBG is closely related to levels of free testosterone and estrogen; most of these hormones travel through the bloodstream “bound” to SHBG. Any testosterone that is unbound to SHBG is referred to as free testosterone. Studies have shown that men with BPH have elevated levels of SHBG in their prostate gland (Jiang H et al 2004); thus, any nutrient that reduces SHBG levels may also be able to reduce BPH.

Antioxidants. One reason testosterone production may decline is because of oxidative damage directed at the tissues that synthesize testosterone. A Chinese study examined the role of antioxidants in male hormone imbalance or partial androgen deficiency of aging men. The article’s authors note that antioxidants (including vitamin A, vitamin E, zinc, and selenium) all support testosterone production (He F et al 2005).


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Male Hormone Restoration
A Word about Testosterone and Prostate Disease
For more than 50 years, it has been thought that men should avoid testosterone replacement therapy because testosterone increases the risk of prostate disease, including BPH and prostate cancer. A look at the published literature, however, reveals that this long-standing belief is actually a myth.

In fact, a review of studies on the National Institutes of Health database reveals that high testosterone levels are not associated with increased risk of prostate cancer and, conversely, that low testosterone levels are not protective against prostate cancer (Morgentaler A 2006). In one study (with a 7-year follow-up) of more than 500 men, high levels of androgens were associated with a decreased risk of aggressive prostate cancer, while there was no change in the risk of nonaggressive prostate cancer. Overall, levels of any steroid hormones (except estrogen) had no correlation to the risk of prostate cancer (Severi G et al 2006).

Elevated estrogen levels, however, are frequently associated with BPH. As readers of Life Extension magazine learned in late 1997, estrogen has been identified as a factor behind the enlargement of the prostate gland that affects so many older men. Compared to younger males, older males have much more estradiol (a potent form of estrogen) than free testosterone because of aromatase activity. These rising estrogen and declining androgen levels are even more sharply defined in the prostate gland. With aging, estrogen levels increase significantly in the prostate gland. Estrogen levels in prostate gland tissues rise even higher in men who have BPH (Shibata Y et al 2000; Gann PH et al 1995; Krieg M et al 1993).

Based on research, high levels of testosterone are not implicated in an increased risk of developing either prostate cancer or BPH. However, among men who already have these conditions, testosterone replacement therapy will likely cause increased disease activity. For these reasons, it is important that men who are considering hormone replacement therapy undergo frequent screening for prostate cancer (with PSA testing and digital rectal exams). If cancerous cells are present in the prostate, testosterone therapy will likely produce a spike in PSA levels that will lead to a diagnosis of prostate cancer.

Once a man actually has prostate cancer, testosterone therapy cannot be recommended because most prostate cancer cells use testosterone to promote the growth of the cancerous cells. Similarly, men with BPH should approach testosterone replacement cautiously. It may be prudent for men with BPH who are undergoing testosterone replacement therapy to also use a 5-alpha-reductase inhibitor (such as finasteride or dutasteride). These drugs inhibit the synthesis of dihydrotestosterone (DHT), a metabolite of testosterone that causes BPH. 5-Alpha-reductase inhibitors are a standard part of prescription therapy for BPH. For more information on natural ways to suppress BPH, please see the chapter on Benign Prostatic Hyperplasia.

Life Extension Foundation Recommendations
Hormone therapy for aging men can be a complicated topic. While many books talk about the dangers of low testosterone levels, there are few sources that can help men safely embark on a program of testosterone replacement therapy. The Life Extension Foundation offers a step-by-step program to safely restore youthful hormone levels in aging men.

Step One: Testing
It is critical that men undergo comprehensive medical testing before embarking on a hormone modulation program. First, a baseline blood PSA must be taken to rule out existing prostate cancer. (For more information, please see the chapter on Prostate Cancer.) Then free and total testosterone and estradiol tests are needed to make sure that too much testosterone is not being converted into estrogen. If estrogen levels are too high, the use of aromatase inhibitors can keep testosterone from converting into estrogen in the body. Follow-up testing for estrogen, testosterone, and PSA are needed to rule out prostate cancer and fine-tune your program. Additional tests that should be considered include:

Complete blood cell count and chemistry profile to include liver and kidney function, glucose, minerals, lipids, and thyroid-stimulating hormone (TSH)
DHEA
Homocysteine
Luteinizing hormone (LH) (optional)
SHBG (optional)
Blood for these tests may be drawn at your physician's office or directly at a laboratory in your area. Information about ordering these tests on your own may be obtained by calling 1-800-208-3444. These tests will yield crucial information that can help you design a program tailored to your unique situation.

Step Two: Interpreting the Results
Free testosterone. Most conventional physicians accept testosterone levels that are far too low. Normal ranges usually reflect population averages among men of a particular age. This assumes, however, that decreasing hormone levels are acceptable and normal. The Life Extension Foundation recommends that men strive for a free testosterone level that is in the upper one-third range for men aged 21 to 49 years. These ranges can be found in the Blood Testing appendix at the back of this book.

There are five basic reasons that free testosterone levels may be low:

Too much testosterone is being converted to estrogen through the activity of aromatase, and/or the liver is failing to remove excess estrogen, possibly because of heavy alcohol intake.
Too much free testosterone is being bound by SHBG. This would be especially apparent if a man’s total testosterone level is in the high normal range but his free testosterone level is low.
The pituitary gland, which controls testosterone production through the production of LH, is not secreting enough LH to stimulate gonadal production of testosterone. In this case, total testosterone would be low.
The testicles (gonads) have lost their ability to produce testosterone, despite adequate amounts of LH. In this case, the level of LH would be high despite a low testosterone level.
DHEA level is abnormally low.
Estrogen. Estrogen (measured as estradiol) should be kept at 30 picograms per milliliter (pg/mL) or lower. If a man’s estrogen level is more than 30 pg/mL, it should be reduced by using aromatase-inhibiting drugs or nutrients. If a man’s estrogen level is elevated, it could be associated with:

Increased aromatase activity, often caused by increased abdominal fat.
Heavy alcohol intake. An animal study has shown that high alcohol intake results in increased aromatization and decreases the ability of the liver to clear excess estrogen (Purohit V 2000). In men, heavy alcohol intake has been shown to boost estrogen levels within the liver, possibly as a protective mechanism, resulting in the “feminization” of the liver (Colantoni A et al 2002).
Total testosterone. The Life Extension Foundation believes that direct testing for free testosterone is the best way to test for testosterone activity, as free testosterone is active testosterone and consists of only 1 to 2 percent of total testosterone. However, some men have their total testosterone measured also.

Step Three: Correcting Abnormal Levels
Ultimately, the ideal program will depend on the results of various tests. Below are some of the common scenarios and solutions to correct hormone imbalances.

Low Free Testosterone, High Estradiol, Mid Total Testosterone

This situation suggests excessive aromatase activity, which converts free testosterone to estrogen. Inhibition of aromatase and reduction in aromatase-containing tissue (fat) is indicated. Suggestions include:

Take the following supplements:
Zinc—50 milligrams (mg)/day
Acetyl-L-carnitine—1000 to 2000 mg/day
Muira puama—850 mg/day
Chrysin—1500 mg/day
Piperine—10 mg/day to enhance absorption of chrysin
Quercetin—500 to 1000 mg/day
Lose weight to reduce aromatase activity.
Reduce or eliminate alcohol to enable the liver to better remove excess estrogen.
Review all current medications to see if they are interfering with healthy liver function. Common medications that affect liver function are nonsteroidal anti-inflammatory drugs (NSAIDs) such as naproxen, ibuprofen, acetaminophen, and aspirin; the statin class of cholesterol-lowering drugs; some heart medications; some blood pressure–lowering medications; and some antidepressants. Drugs being prescribed to treat the symptoms of testosterone deficiency (such as the statins and certain antidepressants) may actually aggravate the testosterone deficit, thus making the cholesterol problem or depression worse. However, do not discontinue any prescription medicine without consulting your physician.
If all of the above fail to increase free testosterone and lower excess estradiol, consider discussing with your physician the use of the aromatase inhibitor anastrozole at the very low dose of 0.5 mg twice per week.
Low Free Testosterone, Low Estrogen, High Total Testosterone

This situation suggests excessive SHBG levels, making testosterone unavailable to target tissues. Suggestions include:

Inhibit aromatase by following some of the recommendations in the previous section. Many of the same factors are involved in excess SHBG activity.
Take the following supplements:
Saw palmetto extract—320 mg/day
Nettle root extract—240 mg/day
Cruciferous vegetable extract—400 mg/day
DHEA—15 to 75 mg/day, followed by blood tests in 3 to 6 weeks
Low Free Testosterone, Low Estrogen, Low Testosterone

This situation suggests low production of testosterone, with resultant low conversion to estrogen. Suggestions include:

Use testosterone patches, pellets, or cream. Do not use testosterone injections or tablets. If tests reveal low levels of LH, ask your physician about the possibility of using human chorionic gonadotropin (HCG). HCG function is similar to LH function, and HCG can restart gonadal production of LH.
Take 15 to 75 mg/day of DHEA.
General Nutrients to Boost Testosterone
A number of nutrients have been studied for their ability to boost testosterone and/or treat conditions such as erectile dysfunction and loss of libido. This nutrient group includes antioxidants, which may function by reducing oxidative damage to testosterone-producing tissues.

Selenium—200 micrograms (mcg)/day
Vitamin A—5000 International Units (IU)/day
Vitamin E—400 IU/day with at least 200 mg of gamma-tocopherol


Product Availability
All the nutrients and supplements discussed in this section are available through the Life Extension Foundation Buyers Club, Inc. For ordering information, call anytime toll-free 1-800-544-4440, or visit us online at www.LifeExtension.com.

The blood tests discussed in this section are available through Life Extension National Diagnostics, Inc. For ordering information, call anytime toll-free 1-800-208-3444, or visit us online at www.LifeExtension.com.

Male Hormone Restoration Safety Caveats
An aggressive program of dietary supplementation should not be launched without the supervision of a qualified physician. Several of the nutrients suggested in this protocol may have adverse effects. These include:

Acetyl-L-Carnitine

Acetyl-L-carnitine can cause gastrointestinal symptoms such as nausea and diarrhea.
Chrysin

Do not take chrysin if you have prostate cancer.
Chrysin can increase the effects of aromatase inhibitors such as aminoglutethimide, anastrozole and letrozole.
DHEA

Do not take DHEA if you could be pregnant, are breastfeeding, or could have prostate, breast, uterine, or ovarian cancer.
DHEA can cause androgenic effects in woman such as acne, deepening of the voice, facial hair growth and hair loss.
Piperine

Piperine can inhibit drugs such as: propanolol, theophylline, phenytoin, sulfadiazene, rifampicin, isoniazid, ethambutol, pyrazinamide and dapsone that are metabolized by cytochrome P450 enzymes.
Quercetin

Quercetin can cause headache, mild tingling of the extremities, and gastrointestinal symptoms such as nausea.
Saw Palmetto

Consult your doctor before taking saw palmetto if you have any form of cancer that is stimulated by hormones.
Selenium

High doses of selenium (1000 micrograms or more daily) for prolonged periods may cause adverse reactions.
High doses of selenium taken for prolonged periods may cause chronic selenium poisoning. Symptoms include loss of hair and nails or brittle hair and nails.
Selenium can cause rash, breath that smells like garlic, fatigue, irritability, and nausea and vomiting.
Vitamin A

Do not take vitamin A if you have hypervitaminosis A.
Do not take vitamin A if you take retinoids or retinoid analogues (such as acitretin, all-trans-retinoic acid, bexarotene, etretinate, and isotretinoin). Vitamin A can add to the toxicity of these drugs.
Do not take large amounts of vitamin A. Taking large amounts of vitamin A may cause acute or chronic toxicity. Early signs and symptoms of chronic toxicity include dry, rough skin; cracked lips; sparse, coarse hair; and loss of hair from the eyebrows. Later signs and symptoms of toxicity include irritability, headache, pseudotumor cerebri (benign intracranial hypertension), elevated serum liver enzymes, reversible noncirrhotic portal high blood pressure, fibrosis and cirrhosis of the liver, and death from liver failure.
Vitamin E

Consult your doctor before taking vitamin E if you take warfarin (Coumadin).
Consult your doctor before taking high doses of vitamin E if you have a vitamin K deficiency or a history of liver failure.
Consult your doctor before taking vitamin E if you have a history of any bleeding disorder such as peptic ulcers, hemorrhagic stroke, or hemophilia.
Discontinue using vitamin E 1 month before any surgical procedure.
Zinc

High doses of zinc (above 30 milligrams daily) can cause adverse reactions.
Zinc can cause a metallic taste, headache, drowsiness, and gastrointestinal symptoms such as nausea and diarrhea.
High doses of zinc can lead to copper deficiency and hypochromic microcytic anemia secondary to zinc-induced copper deficiency.
High doses of zinc may suppress the immune system.

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