Reversibility Of AAS Effects On Blood Cells, Lipids, Liver, And Hormones

Michael Scally MD

Doctor of Medicine
10+ Year Member
In 2003, a retrospective study examined the effects of illicit AAS on a population in which the mean time off steroids was 43 months with the minimum length of time 1 year and the maximum 10 years. The study found 13/15 ex-AAS users were in the lower 20 percent of the normal reference range for testosterone and 2/15 were below the normal range.


Urhausen A, Torsten A, Wilfried K. Reversibility of the effects on blood cells, lipids, liver function and hormones in former anabolic-androgenic steroid abusers. J Steroid Biochem Mol Biol 2003;84(2-3):369-75. https://www.sciencedirect.com/science/article/pii/S0960076003001055

BACKGROUND: In contrast to the acute effects of anabolic-androgenic steroid (AAS) abuse, the long-term risk profile of former long-term abusers (ExA) is less clear.

METHODS: Blood parameters of 32 male bodybuilders and powerlifters were studied. Fifteen ExA had not been abusing AAS for at least 12-43 months on average (mean dosage 700 mg for 26 weeks per year over 9 years), 17 athletes (A) were still abusing AAS (750 mg for 33 weeks per 8 years).

FINDINGS: Hemoglobin (+5%), leucocytes (+33%) and platelets (+38%) were significantly higher in A. Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) were higher, cholinesterase activity (CHE) lower in A (65+/-55, 38+/-27 and 3719+/-1528U/l) compared to ExA (24+/-10, 18+/-11 and 6345+/-975U/l; each P<0.001) with normal values for gamma-glutamyl transpeptidase (gamma-GT) and bilirubin. ALT, AST and CHE correlated significantly with the extent (duration and weekly dosage, expressed as a point score) of AAS abuse in A (r=0.68, 0.57 and -0.62; each P<0.01).

Total and LDL-cholesterol were similar, HDL-cholesterol was distinctly lower in A than in ExA (17+/-11 and 43+/-11 mg/dl; P<0.001) and correlated negatively with the extent of AAS abuse (r=-0.50; P<0.05).

Testosterone and estradiol were significantly higher, while LH, FSH and the sexual-hormone-binding (SHB) protein were lower in A than in ExA (each P<0.001).

Two ExA had testosterone levels below the normal range. [Note: The remaining ExA had T levels considered hypogonadal, less than 350 ng/dL.]

INTERPRETATION: The alterations in cell counts, HDL-cholesterol, liver function and most hormones of the pituitary-testicular axis induced by a long-term abuse of AAS were reversible after stopping the medication for over 1 year. In some ExA, an increased ALT activity and a depressed testosterone synthesis were found.
 
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