Bovine Sperm Forward Motility Protein: Binding to Epididymal Spermatozoa
نویسندگان
چکیده
منابع مشابه
Adenine nucleotide mediation of fructolysis and motility in bovine epididymal spermatozoa.
Fructolysis is stimulated 3to 5-fold in bovine epididymal spermatozoa when the latter are preincubated with caffeine, theophylline, cyclic adenosine 3’, 5’-monophosphate (CAMP), and N6, 02’-dibutyryl adenosine 3’,5’-monophosphate’((Bt)2CAMP). No increase in fructolysis is observed if phosphodiesterase inhibitors or cyclic nucleotides are added to freshly washed cells or to preincubated cells ju...
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The serine/threonine phosphatase (PP1) isoform PP1γ2, predominantly expressed in the testis, is a key enzyme in spermatozoa. High PP1γ2 catalytic activity holds motility in check in immature spermatozoa. Inhibition of PP1γ2 causes motility initiation in immature spermatozoa and motility stimulation and changes in flagellar beat parameters in mature spermatozoa. The PP1γ2 isoform is present in a...
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Microsurgical epididymal sperm aspiration was a great advance in the therapy of patients with non-reconstructable, obstructive azoospermia, most notably congenital bilateral absence of the vas deferens. Using conventional in-vitro fertilization, pregnancies were rarely achieved because the rate of oocyte fertilization was extremely poor. However, the use of retrieved spermatozoa in conjunction ...
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BACKGROUND Normal fertilization and ongoing pregnancy can be achieved using intracytoplasmic sperm injection (ICSI), even with severely immature spermatozoa. However, the published literature documents conflicting results as to the outcome of ICSI. METHODS Surgical extraction of spermatozoa in 111 ICSI treatment cycles performed over five years at the Assisted Conception Unit (ACU), Universit...
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Several studies exhibit the presence of Ricinus Communis Agglutinin I (RCA) binding glycocalyx in mammalian spermatozoa. However, the molecular characterization of RCA binding glycocalyx in sperm membranes and its mechanism of action are poorly understood. The objective of the study was to identify and to characterize RCA binding glycoprotein of the bovine sperm plasma membranes (PM). Lectin bl...
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 1981
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod24.2.234