eMule Anleitung are a promising class of compounds that have undergone preclinical proof-of-concept and toxicology studies and are entering phase I clinical trials (1, 2). In animal models, sarms show promising anabolic effects while sparing prostate tissue. In addition, they suppress androgen-induced gonadotropin secretion in the prostate (37).

These agents are often marketed as dietary supplements, which is prohibited by the World Anti-Doping Agency and can cause professional and collegiate athletes to lose their eligibility for competition. Unlike other dietary supplements, SARMs are not approved by regulatory agencies and may contain unlisted ingredients that can trigger an adverse event, such as liver damage or a heart attack.

A recent study of products marketed as SARMs in the online marketplace found that only 52% actually contained what was advertised and 25% had an undeclared ingredient, such as steroids. In addition, some of these products were marketed at a dosage different from the one advertised, and some had no active ingredients at all.

SARMs Uncovered: A Comprehensive Guide to Selective Androgen Receptor Modulators

In case reports, SARM abusers typically report taking multiple SARMs at doses 4-10 times the doses used in clinical trials and have a history of heavy physical activity. These cases commonly present with a pattern of DILI that is initially hepatocellular and then converts to a cholestatic pattern. Serial ALT monitoring and encouraging lower doses are two strategies to improve safety and reduce the incidence of DILI in these patients.

Another potential benefit of sarms is their ability to enhance muscle strength and bone mechanical properties without increasing bone density. This is particularly important for patients with chronic diseases that are associated with wasting and osteoporosis, such as cancer, pulmonary fibrosis, or end-stage renal disease. In an early-phase clinical trial, the SARM LY2452473 accelerated muscle growth in mice and prevented ovariectomy-induced bone loss in rats. It also enhanced the viability of PCa cells and reduced proliferation signaling, including phosphorylated ERK-MAPK and Ki67 expression (17).