Archive for April, 2011

First I must divorce any misconception this is the first flirtation with TRT. About 8 years ago, after taking the blood pressure medication Prinzide – a combination Thiazide diuretic/ACE inhibitor – I had a collapse after four days. Profound in nature, this event changed my life. From a strapping young man capable of 100 push-ups, I could not longer manage even 10. A visit to a local endocrinologist indicated all of my endocrine systems were compromised. Suddenly I was diabetic, I became seriously depressed, and all of my muscles experienced a weakness that was frightening. This included my diaphragm and I required a velcro weight belt to provide support and assist in relieving any weight on the diaphragm just so I could breathe.

I immediately began to treat the depression, and began an exercise program that consisted of 100 deep-knee bends, as many push-ups as I could handle, and walking for short distances. After the depression resolved itself, additional tests which indicated high cortisol and I barely passed a dexamethasone supression test. Failure of this test is indicative of adrenal issues. Measured testosterone was very low at 185 ng/dL. I decided to treat the testosterone only and attempted both Androgel and Testim, finally deciding on the Testim. I saw many specialists including a neurologist, a lung specialist, a neurosurgeon, and a cardiologist. After over fifty thousand dollars worth of tests they found….nothing wrong. MRIs, stress tests, multiple visits to my general practitioner and nothing, nada, zilch. I first suspected rhabdomyolysis, which testing quickly ruled out. MRIs of the pituitary, hypothalamus, and adrenals were negative. The only conclusion offered by one doctor – I suffered from a variant of Guillain-Barre syndrome, an ascending paralysis that in the worse cases becomes complete, with the patient on a ventilator. The disease usually resolves itself after a period of months, weeks, and sometimes years.

continue

There are four main types of testosterone replacement that are available.

Transdermal testosterone includes patches (which will not be covered due to their low absorption rates) and gels such as Testim and Androgel, which are both 1% concentrations, and creams from a compounding pharmacy which range from concentrations of 1% to 10% with higher concentration rates equating to lower skin surface area for application. A study indicated Testim absorption to be better than Androgel, however my personal experience is that both are good absorbers. The smell of Testim turns most men off to its use, but I found that women particularly like the odor. However, my insurance does not cover Testim. Androgel efficacy is improved in my case by rubbing it on the flanks as well as the arms. Remember, the more surface area the higher the DHT, which can lead to unwanted side effects such as acne, accelerated hair loss in those prone to male pattern baldness, and hair growth in unwanted areas. However, the boost in libido and improvement in erections is noticeable for me. Shots, mentioned next, worked fine in my case for about 1 month. Two months into the treatment I had profound lack of libido and total erectile dysfunction unresponsive to PDE5 inhibitors such as Viagra and Levitra.

continue

So just how does the male body produce testosterone? While the number of systems that can impact testosterone production is large in number, the basics are rather simple. Let’s start at the hypothalamus and work our way down.

• The hypothalamus produces gonadotropin-releasing hormone (GnRH)
• This hormone triggers the anterior pituitary gland to produce two other hormones
• These two hormones are luteinizing hormone (LH) and follicle-stimulating hormone (FSH)
• LH stimulates the Leydig cells in the testicles to produce testosterone while FSH regulates the development, growth, pubertal maturation, and reproductive processes of the body and acts synergistically with LH in male reproductive health.

Simple enough, but what happens is one or more of these systems is compromised in some manner? Defects in the hypothalamus or pituitary gland that compromise the release of GnRH (and subsequently FSH and LH) or adversely affect the release of FSH or LH from the anterior pituitary lead to what is known as secondary hypogonadism. A defect in the testicles that causes a reduction or cessation of gonadal response to LH is characterized as primary hypogonadism. There are many causes of both primary and secondary hypogonadism. The link lists only some of the causes. Also check out this link. Hypogonadism that is present absent any of these conditions or any other known conditions that affect male testosterone production comes under the heading idiopathic hypogonadism. This later label correctly describes my own condition.

Typically a doctor will order a test that measures the total serum testosterone. This is a simple blood test that provides a number, usually in the units of nanograms per deciliter (ng/dl). Normal values vary by the lab performing the test on the blood sample, but typically values are from around 300ng/dL to 1000ng/dl. However, caution should be used in using this raw value as an stark indicator of hypogonadism. For some men presenting with low normal values or even normal values symptoms of low testosterone are often seen. Therefore the entire clinical picture is needed to ensure treatment is provided even in the face of so-called normal results. Also, an entire workup of the thyroid function as well as adrenal function is necessary. Any issue with either of these glands can often lead to hypogonadism or mimic they symptoms of hypogonadism. Also, an understanding of any issues with these glands will guide the treating physician in the selected treatment. As an example, long-standing hypothyroidism will impair the absorption of transdermal testosterone due to build-up of mucin in the skin of people. Mucin causes the skin to thicken impairing absorption of transdermal testosterone.

continue

My decision to create a new section on this site specifically dedicated to Testosterone Replacement Therapy is two-fold. One, TRT has changed my life. With evidence that Testosterone acts very similar to a calcium channel blocker by dilating arteries, my decision to start TRT was not just related to low testosterone levels, but also to the benefits I perceived TRT possesses for heart health in individuals with heart disease. As a sufferer of heart disease and the recipient of 25 stents, I began my TRT with earnest. Secondly, TRT is not always beneficial unless the patient and the doctor understand just what is involved and what systems must be monitored to ensure success. It is my goal to ensure the reader is as educated on cutting edge replacement therapy.

TRT will not magically turn a diminishing libido into a raging storm of sexual passion, nor will it address erectile dysfunction issues in all cases when the only treatment involves measuring testosterone levels, choosing a treatment, and then walking out of the doctor’s office. Too many physicians have very little understanding of TRT, and many have no idea how to handle the tougher cases.

continue