The ZRT Laboratory Blog

The ZRT Blog is an extensive resource for patients and health care providers searching for health and hormone testing information. Here, you can read about ZRT’s cutting edge research, advances in testing, wellness advice, and health industry highlights.

The Strange Case of the Disappearing Hormone

Posted by Margaret Groves on Tuesday, 10 June


I love mysteries. But unlike the advances in forensic science that have caused a sea change in solving murders previously only fathomable by sleuths such as Hercule Poirot, the advances in laboratory testing methods have outpaced the ability of the medical community to unravel the controversial mysteries surrounding absorption of steroid hormones.

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Testosterone: Elixir or Dangerous Drug?

Posted by Dr. David Zava on Wednesday, 19 September

ThinkstockPhotos-85447820_lores.jpgA recent study published in the prestigious New England Journal of Medicine (NEJM) (1)
casts a shadow on the common use of testosterone therapy in older men for boosting their energy and vitality. 

An FDA-approved testosterone gel was shown to significantly increase risk for adverse cardiovascular, respiratory, and dermatological events in men 65 or older who had impaired mobility and increased health risks.

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