One‐third of infertile couples may have a male factor present. Illicit drug use can be an
important cause of male factor infertility and includes use of anabolic‐androgenic steroids …

Despite significant advances in contraceptive options for women over the last 50 yr, world
population continues to grow rapidly. Scientists and activists alike point to the devastating …

Background Hormonal methods for safe, reliable, and reversible contraception based on the
suppression of spermatogenesis could soon become available. We have investigated the …

Androgen receptor (AR) plays a critical role in the function of several organs including
primary and accessory sexual organs, skeletal muscle, and bone, making it a desirable …

The prospects of wider application of testosterone (T) in novel indications such as male
contraception have prompted renewed interest in the investigation of nonreproductive …

Concise yet comprehensive, the Biomedical Technology and Devices Handbook illuminates
the equipment, devices, and techniques used in modern medicine to diagnose, treat, and …

The provision of safe, effective contraception has been revolutionized in the past 40 yr
following the development of synthetic steroids and the demonstration that administration of …

Context: Combinations of testosterone (T) and nestorone (NES; a nonandrogenic progestin)
transdermal gels may suppress spermatogenesis and prove appealing to men for …

Androgens are essential for male development and the maintenance of male secondary
characteristics, such as bone mass, muscle mass, body composition, and spermatogenesis …

Background: This study was performed to assess spermatogenesis suppression and safety
of a new combination of an etonogestrel (ENG) implant combined with testosterone …