Calcium antagonists stimulate sperm motility in ejaculated human semen.
نویسندگان
چکیده
منابع مشابه
Analysis and significance of mRNA in human ejaculated sperm from normozoospermic donors: relationship to sperm motility and capacitation
S.Lambard, I.Galeraud-Denis, G.Martin, R.Levy, A.Chocat and S.Carreau UPRES EA 2608-USC INRA, University of Caen, Department of Genetics and Reproduction, CHRU Clemenceau, Caen 14032 and Laboratory of Reproductive Biology, Hopital Nord, 42055 Saint-Etienne, France To whom correspondence should be addressed at: UPRES EA 2608, USC INRA, Université IRBA, esplanade de la Paix, 14032 Caen cedex, Fra...
متن کاملAnalysis and significance of mRNA in human ejaculated sperm from normozoospermic donors: relationship to sperm motility and capacitation.
The existence of a complex population of mRNA in human sperm is well documented but their role is not yet elucidated. Using discontinuous density gradients, we have isolated high and low motile sperm from the same semen sample. The levels of different transcripts coding for molecules either involved in nuclear condensation (protamines 1 and 2) or in capacitation [endothelial nitric oxide syntha...
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Sperm with reduced motility has reduced fertilizing capacity. If low-motile Duroc sperm is mixed with high-motile sperm, the fertilizing capacity of that dose is equal to semen doses exclusively containing high-motile Duroc sperm. With doses that only contained low-motile sperm, the number of total born piglets per litter dropped by minimum 0.5. Duroc boars were selected on the basis of the per...
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The Sperm-Class Analyzer detected four subpopulations of spermatozoa with different motility characteristics in the ejaculate of the Catalonian donkey. Significant differences (P < 0.001) in the distribution of these subpopulations, as well as in total sperm number and percentage total motility, were seen in the diluted semen of four sampled donkeys. All the ejaculates evaluated showed excellen...
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In the present study, bull sperm in the first and second ejaculates were divided into subpopulations based on their motility characteristics using a cluster analysis of data from computer-assisted sperm motility analysis (CASA). Semen samples were collected from 4 Japanese black bulls. Data from 9,228 motile sperm were classified into 4 clusters; 1) very rapid and progressively motile sperm, 2)...
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ژورنال
عنوان ژورنال: British Journal of Clinical Pharmacology
سال: 1985
ISSN: 0306-5251
DOI: 10.1111/j.1365-2125.1985.tb02611.x