BACKGROUND: Suppression of spermatogenesis to azoospermia is required for effective
hormonal male contraception, but the degree of suppression varies between ethnic groups …

BACKGROUND: Effective hormonal male contraception requires a high prevalence of
spermatogenic suppression, which has proved particularly difficult in Caucasian …

Research has established the principle of hormonal male contraception based on
suppression of gonadotropins and spermatogenesis. All hormonal male contraceptives use …

The principle of hormonal male contraception based on suppression of gonadotropins and
spermatogenesis has been established over the last three decades. All hormonal male …

The development of male hormonal contraception has progressed significantly during the
last three decades. The ultimate goal is to produce an effective, safe and reversible male …

Objective To compare the sperm suppression in Indonesian men achieved by combination
treatment with either T enanthate or 19-nortestosterone-hexyloxy-phenyl-propionate (19 …

Context: Male hormonal contraceptive methods require effective suppression of sperm
output. Objective: The objective of the study was to define the covariables that influence the …

Monthly injections of testosterone undecanoate (TU) act as a male contraceptive by
reversibly suppressing spermatogenesis to azoospermia or severe oligoazoospermia in …

Hormonal male contraception based on testosterone alone or on a combination of
testosterone with a gestagen has been shown to suppress spermatogenesis effectively and …

Background The hormonal control of spermatogenesis was unravelled decennia before the
recent advances in genetics and molecular biology. This explains why hormonally active …