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Beyond Testosterone: Interview with Dr. Lynese Lawson

PART 1 Nelson: Hello everybody, Nelson Vergel here with ExcelMale.com. I'm very happy to have Dr. Lawson from the Washington DC area. She's a long...
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Should You Be Injecting Testosterone Under the Skin?

Endocr Rev, Vol. 34 (03_MeetingAbstracts): MON-594 Evaluation of the efficacy of subcutaneous administration of testosterone in female to male transexuals and hypogonadal males FDA-approved indications for...
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How to Manage Increased Blood Thickness (Hematocrit) Caused by Testosterone Replacement Therapy

Testosterone Replacement Therapy and Polycythemia By Nelson Vergel, B.S.Ch.E., M.B.A. Polycythemia is an excessive production of red blood cells. With polycythemia the blood becomes very viscous...
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What is the Optimum Blood Level of Vitamin D for Maximum Testosterone?

Serum vitamin D levels and hypogonadism in men. Sources of Vitamin D Lerchbaum E, et al. Andrology. 2014 Jul 16. doi: 10.1111/j.2047-2927.2014.00247.x. Abstract There is inconsistent evidence on...
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Sex Hormone Synthesis, Regulation, and Function

The hypothalamus-pituitary-gonadal (HPG) axis Sex hormone synthesis is controlled by the pulsatile release of hypothalamic gonadotropin-releasing hormone (GnRH) At the pituitary gland, GnRH stimulates the release...