Friday, 9 November 2012

HIV and Hormones

Hormone Basics
Hormones are chemicals in your body that flow through your blood stream to send messages between different organs. They are formed in your glands, and they control all sorts of processes in the body. Hormones have an effect on your growth, metabolism (your body’s chemical processes), sex drive, and ability to have children.

Hormones and HIV
Studies have shown that HIV can affect the body’s ability to produce and maintain hormone levels. There are many types of hormones. The hormones that seem to be particularly affected by HIV are the following:
  • Estrogen and Progesterone: female sex hormones that are made in the ovaries
  • Testosterone: male sex hormone found in small amounts in women’s bodies. Testosterone is made in the adrenal glands (just above the kidneys) and in the ovaries.
  • DHEA: Steroid hormone that may be connected with immune function and energy. DHEA is made in the adrenal glands and sex hormones are made from it.
Estrogen, progesterone, testosterone, and DHEA levels naturally get lower as you age. Changes in one of these hormones can affect the levels of the others.

Some drugs that are used to treat HIV-related conditions can also affect hormone levels. These include:
  • Cytovene (ganciclovir)
  • Megace (megestrol acetate)
  • Nizoral (ketoconazole)
Experts believe that hormones (especially growth hormone) are also connected to wasting and lipodystrophy, a group of fat-related body changes that appear in some HIV+ people. However, more research is needed in this area.

Problems Caused by Irregular Hormone Levels
Changes in your hormone levels can affect many of your body's functions. Some of the symptoms that are caused by hormone level changes include:
  • Abnormal menstrual cycles, possibly including early menopausefor HIV+ women
  • Weight loss
  • Headaches
  • Mood swings
  • Depression
  • Sleep disturbances
  • Fatigue
  • Decreased bone density
  • Vaginal dryness
  • Decreased sexual desire
  • Difficulty getting pregnant
If you are experiencing any of these symptoms, you should speak to your doctor, who can check your hormone levels.

HIV+ women who experience hot flashes at night may be misdiagnosed as having menopause-related night sweats, when in fact their hot flashes may be the result HIV infection and related conditions such as "wasting.” Vaginal dryness can be mistaken for a yeast infection. It is important to keep track of your cycles and report anything unusual to your health care provider so that you can find the reason for your symptoms. For more information about menstrual problems and HIV, see TWP's info sheet, Menstrual Changes.

Hormone Replacement Therapy (HRT)
Women who have low estrogen levels may choose to replace the estrogen in order to regulate menstrual periods and help relieve pre-menstrual syndrome (PMS). However, the most common reason to replace estrogen is to relieve the symptoms of menopause.

Care must be taken in replacing estrogen. Taking estrogen alone increases the risk of uterine cancer. If a woman has had her uterus (womb) removed, she can take estrogen by itself. This is called estrogen replacement therapy or ERT.

Women who still have a uterus usually take a combination of estrogen and progesterone. This is called hormone replacement therapy (HRT).

Although HRT used to be regularly recommended to relieve menopausal symptoms and reduce bone loss, long-term use of HRT is now highly controversial. Research has shown that HRT increases women’s risk for breast cancer, heart disease, and stroke. HRT may be appropriate for a short time to relieve menopausal symptoms that do not respond to other therapies. Estrogen and progesterone are available in patches, creams, and vaginal rings; these may be an alternative to the pill form of HRT and may not carry the same risks.

To figure out if HRT is right for you, speak with your health care provider about all the risks and benefits. When deciding about HRT, it is important to tell your provider about any drugs or other treatments you are taking. HIV drugs can sometimes reduce the effectiveness of hormones, including birth control pills containing estrogen and progesterone. Estrogen can also cause decreased levels of HIV drugs and put you at risk for a rising viral load and HIV drug resistance.

Alternative Treatments
There are other therapies available to treat menopausal symptoms. However, these may also have undesirable side effects or interact with HIV drugs. If you choose alternative therapies it is best to consult a skilled practitioner and let your regular health care provider know exactly what you are doing.
Other treatments include:
  • Traditional Chinese Medicine (e.g., acupuncture, Chinese herbs)
  • Herbal or botanical supplements (e.g., black cohosh, soy, red clover, dong quai, kava, ginseng)
  • Antidepressant drugs and/or counseling
  • Prescription drugs to prevent bone loss (e.g., Fosamax, Actonel, or Boniva)
  • Mindfulness training

Shortages of testosterone can result in fatigue, sexual problems, depression, and muscle loss. Many women who take testosterone or anabolic steroids report improved energy, sex drive, mood, and better quality of life. Anabolic steroids are drugs with very similar effects as testosterone. They have also been shown to increase lean muscle mass and add weight.

Speak to your health care provider about possible side effects from testosterone use. Women may experience facial hair growth, deepening of their voice, or clitoral enlargement. Testosterone is available in many forms; patches, gels, and creams may be preferred to injections and tablets because they decrease the likelihood side effects listed above. Testosterone is not recommended for women who are pregnant or who wish to become pregnant.

Human Growth Hormone
Women suffering from weight loss (wasting) or lipodystrophy may consider treatment with human growth hormone (HGH, Serostim). HGH has been shown to increase lean muscle mass and may reduce fat accumulations associated with lipodystrophy. Unfortunately, HGH does not seem to correct facial wasting. Because of its high cost and potential side effects, HGH is not for everyone.

Taking Care of Yourself
Discuss any symptoms you are experiencing with your health care provider. If a hormone imbalance is found to be the cause, you can explore treatment options. Also make sure to discuss drug interactions and long-term side effects of hormone use.

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