ATP and ADP content of human ejaculated spermatozoa.
نویسندگان
چکیده
منابع مشابه
Apoptosis and necrosis in human ejaculated spermatozoa.
BACKGROUND Features of both apoptosis and necrosis have been reported in ejaculated human spermatozoa. This study examines the relative contribution of these two modes of cell death to the demise of these terminally differentiated cells. METHODS Sperm fractions were prepared from aliquots of semen samples from young normozoospermic donors by simple washing from seminal plasma, by discontinuou...
متن کاملOrigin of DNA damage in ejaculated human spermatozoa.
The molecular basis of many forms of male infertility is poorly defined. One area of research that has been studied intensely is the integrity of the DNA in the nucleus of mature ejaculated spermatozoa. It has been shown that, in men with abnormal sperm parameters, the DNA is more likely to possess strand breaks. However, how and why this DNA damage originates in certain males and how it may in...
متن کاملRelationship between sperm ATP content and motility of carp spermatozoa.
Carp spermatozoa are immotile in seminal plasma or in saline solution of high osmolality (> 400 mosmol kg-1). These 'quiescent' spermatozoa initiate a progressive forward motility when transferred in freshwater or in saline solution with low osmolality (< 160 mosmol kg-1). In this study we investigated 'in vitro' the relationship between sperm ATP content (measured by bioluminescence) and sperm...
متن کاملEffect of selected metal ions on the motility and carbohydrate metabolism of ejaculated human spermatozoa.
Zinc, lead and cadmium in the form of chloride salts when added to a standard assay system containing 80 X 10(-6) ejaculated washed human spermatozoa caused a dose and duration-dependent inhibition of their motility. The activity of certain key enzymes of carbohydrate and energy metabolism, viz, glycogen phosphorylase, glucose-6-phosphatase, fructose-1, 6-diphosphatase, glucose-6-phosphate isom...
متن کاملLipid composition and metabolism in testicular and ejaculated ram spermatozoa.
1. Spermatozoa collected directly from the testis of the conscious ram contain 25% more phospholipid than ejaculated spermatozoa. The concentration of lecithin, phosphatidylethanolamine and ethanolamine plasmalogen was greater in testicular spermatozoa; little difference was observed in choline plasmalogen. Both types of spermatozoa had significant amounts of cardiolipin and alkyl ether phospho...
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ژورنال
عنوان ژورنال: International Journal of Andrology
سال: 1982
ISSN: 0105-6263,1365-2605
DOI: 10.1111/j.1365-2605.1982.tb00281.x