The Use of Human Growth Hormone in the treatment of HIV / AIDS

HIV (human immunodeficiency virus) is the virus that causes AIDS. The HIV retrovirus may be passed from one person to another when infected blood, semen, vaginal secretions or other bodily fluids come in contact with an uninfected person's broken skin or mucous membranes. People with HIV have what is called HIV infection and are fit and well. Some of these people will develop AIDS as a result of their HIV infection.

Growth hormone is a popular bodybuilding and performance enhancing aid, and the use of recombinant human growth hormone (HGH, or simply GH) to treat various conditions in HIV infection has been debated with excitement for years. Indeed it is licensed for the treatment of wasting syndrome in advanced stages of AIDS. GH is also a commonly used bodybuilding and performance enhancing drug, which can be purchased on the black market; used to help both muscle anabolism / strength and reduction in body fat levels. Both of these applications have possible significance in the treatment of HIV.

Other than in the treatment of wasting disease, results from the studies using HGH to treat body changes associated with HIV and/or drugs used to treat HIV have been very favourable. One which has been studied extensively is the use of HGH in reducing HIV-associated adipose redistribution syndrome (HARS). However, the positive effects of HGH treatment in HIV may be more direct. Several studies have proposed that HGH may bolster the immune system in ways that might improve clinical outcomes in HIV.

Let's look at each of the possible treatment benefits of HGH in HIV in turn:

Wasting
Like cancer cachexia, advanced stages of AIDS are characterised by severe muscle wasting and weakness. The reasons for this are because the patient often has a very poor appetite and food intake, as well as there being direct wasting effects from the HIV and some associated diseases which the patient may have, e.g. pneumonia. The patient then enters a downward cycle with diminished strength, poor food intake and further wasting, and it's often this which leads to eventual death.

Both anabolic steroids (AS) and HGH therapy are used clinically to both slow the effects of wasting and to help improve appetite. Both have been shown to prolong life significantly and improve quality of life in advanced stages of AIDS .

HIV-associated adipose redistribution syndrome (HARS)
HARS is a type of lipodystrophy (abnormal distribution of body fat), where there is accumulation of excess truncal fat and visceral adipose tissue, as opposed to regular gynoid (glutes and hips) or android (abdomen) deposition. This is observed in HIV infected people, moreso as virus load increases. Although not a debilitating condition in itself (indeed extra body fat can prolong life if followed by wasting), HARS is unpleasant for the individual, giving reduced confidence in body image; another negative aspect of the disease.
HGH therapy has been shown to significantly reduce HARS, leading to an improved body image, and significant improvement in psychological well-being. Numerous studies have demonstrated the benefits of this, leading to HGH being licesenced for the treatment of HARS in some countries. It should also be noted that improvement in psychological well-being could also contribute to a positive clinical outcome, in that it reduces the effects of wasting.

Immune system
Of most interest in HIV therapy are the possible benefits of HGH use on the immune system, since HIV's primary adverse effect is reduction in the immune system. It has been clearly demonstrated that HGH does benefit the immune system, but the method by which it helps is still under debate. One theory is that HGH may stimulate renewal of the thymus gland, an important organ in the immune system. This may, in turn, lead to improved immune health in people with HIV. Studies are now examining whether or not renewing thymus tissue leads to better health and longer survival.

The thymus is necessary for developing new T-lymphocytes, which are key immune cells in the defence against disease, and numbers of which steadily reduce in HIV as infection progresses. In particular the thymus gland is involved in the development of CD4+ and CD8+ cells, and it is the CD4+ level which is a very critical marker in HIV outcome. Without some thymus activity, immune reconstitution that produces a wide range of functional CD4+ cells is not believed to be possible. Thus, the state of the thymus in HIV disease and how therapies affect it are of great interest to those researching ways to restore the immune system.

Acute Infections
HIV patients are often more prone to acute infections which may take longer to clear up than in non-HIV individuals. Sometimes these can be associated with poor appetite and weight loss. HGH therapy may curb rapid weight loss often associated with acute infections in HIV positive people and may also reduce length of infection. Far more research is needed here though.

Fasting lipid profile
HIV patients have been shown to have elevated serum lipids, and dyslipidaemia, i.e. high LDL (bad) cholesterol and low HDL (good) cholesterol with raised total cholesterol and triglycerides. This is associated with anti-HIV drug treatment especially later on in infection. This does increase risk of cardiovascular diseases, and HGH treatment may improve lipid profiles.

Bone Building
HIV patients may have loss of bone density associated with wasting. Both treatment with HGH and growth hormone releasing factor (GHRF) have indicated improved bone mass in HIV patients (Koutkia et al 2005).

Side effects of HIV (human immunodeficiency virus) is the virus that causes AIDS. The HIV retrovirus may be passed from one person to another when infected blood, semen, vaginal secretions or other bodily fluids come in contact with an uninfected person's broken skin or mucous membranes. People with HIV have what is called HIV infection and are fit and well. Some of these people will develop AIDS as a result of their HIV infection.

Growth hormone is a popular bodybuilding and performance enhancing aid, and the use of recombinant human growth hormone (HGH, or simply GH) to treat various conditions in HIV infection has been debated with excitement for years. Indeed it is licensed for the treatment of wasting syndrome in advanced stages of AIDS. GH is also a commonly used bodybuilding and performance enhancing drug, which can be purchased on the black market; used to help both muscle anabolism / strength and reduction in body fat levels. Both of these applications have possible significance in the treatment of HIV.

Other than in the treatment of wasting disease, results from the studies using HGH to treat body changes associated with HIV and/or drugs used to treat HIV have been very favourable. One which has been studied extensively is the use of HGH in reducing HIV-associated adipose redistribution syndrome (HARS). However, the positive effects of HGH treatment in HIV may be more direct. Several studies have proposed that HGH may bolster the immune system in ways that might improve clinical outcomes in HIV.