منابع مشابه
Some Aspects of Prostaglandins in Reproduction
High concentrations of prostaglandins (pg quantities) are found in human and sheep seminal plasma (Bygdeman & Samuelsson, 1966; Bygdeman & Holmberg, 1966). The significance of these large amounts is still not clear despite many investigations, though mainly of a pharmacological nature. Recently, Eskin et al. (1972, 1973) have shown that PGFZu* (but not PGE,) in physiological concentrations incr...
متن کاملProstaglandins in human milk.
Human milk contains many different components which interact locally in the gastrointestinal tract and stimulate some systemic functions. Among these substances are prostaglandins. We obtained samples of foremilk and hindmilk in 8 lactating women by manual expression before and after 9 a.m. and 9 p.m. on the 3rd day post partum. The following values were found for prostaglandin E2: foremilk, 16...
متن کاملProstaglandins in human milk
Nutritive and antimicrobial aspects of human milk have received considerable attention. However, another, as yet unproved role for breast milk has emerged in recent years: milk may contain factors which modify or supplement physiological functions in the neonate. For example milk lipase1 may assist in neonatal fat digestion, and hormones in milk-such as thyroxine2-may have biologically signific...
متن کاملInsulin/FOXO signaling regulates ovarian prostaglandins critical for reproduction.
Abnormalities in insulin/IGF-1 signaling are associated with infertility, but the molecular mechanisms are not well understood. Here we use liquid chromatography with electrospray ionization tandem mass spectrometry to show that the C. elegans insulin/FOXO pathway regulates the metabolism of locally acting lipid hormones called prostaglandins. C. elegans prostaglandins are synthesized without p...
متن کاملProstaglandins induce calcium influx in human spermatozoa.
Progesterone, prostaglandin and follicular fluid are reported to enhance the acrosome reaction through the influx of extracellular calcium into the cytoplasm of human spermatozoa. Prostaglandins are present within the male reproductive tract, and high concentrations of prostaglandins exist in seminal fluid. In order to investigate the mechanisms by which prostaglandins enhance the acrosome reac...
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ژورنال
عنوان ژورنال: BMJ
سال: 1981
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.283.6306.1563