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Early Sexual Initiation and Subsequent Sex-Related Risks Among Urban Minority Youth：The Reach for Health Study
Early Sexual Initiation Urban Youth
2009/9/16
Context: Since the 1980s, the age at which U.S. teenagers, especially minority youth, begin having sex has decreased. There is limited information on the relationship between early sexual initiation a...
Immunohistochemical study on the initiation of acid phosphatase secretion in the human prostate. Cytochemistry and biochemistry of acid phosphatases IV
Immunohistochemical study initiation acid phosphatase secretion human prostate
2009/2/19
Acid phosphatase was purified from human prostatic tissue and from seminal plasma. Antisera to antigens from both sources were raised in rabbits. These antisera have been used for immunohistochemical ...
Initiation of sperm motility after mating in the rat and hamster
sperm motility rat hamster
2009/2/11
Unlike those of many mammals, rat and hamster spermatozoa do not appear to be fully activated at ejaculation. Most rat spermatozoa transported en masse to the uterus approximately 2 minutes after co...
Changes in Sperm Glycogen Synthase Kinase-3 Serine Phosphorylation and Activity Accompany Motility Initiation and Stimulation
Epididymis protein kinase B phosphoinositide 3-kinase
2008/12/22
Sperm motility is regulated by protein phosphorylation. We have shown that the signaling kinase, glycogen synthase kinase-3 (GSK-3), is present in spermatozoa. In somatic cells, GSK-3 is regulated b...