Results 311 to 320 of about 566,665 (344)
Fertility Prospects Among Testicular Cancer Survivors: Outcomes of Surgical Sperm Retrieval in Azoospermic Patients. [PDF]
CureusHibi H, Sugie M, Asada Y.
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Lactylated Proteomic Analysis Reveals Functional Implications of Lysine Lactylation In Asthenozoospermia. [PDF]
Mol Cell ProteomicsYan M +9 more
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Constructing a nomogram for ICSI-ET assisted reproductive outcomes in infertile men based on lifestyle and sperm quality: a multicenter retrospective survey. [PDF]
Front Endocrinol (Lausanne)Wang K +8 more
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Sperm size and sperm competition in birds
Proceedings of the Royal Society of London. Series B: Biological Sciences, 1992In a sample of 20 species of North American passerine birds we found no relation between sperm size and mating system like that previously reported in mammals (Gomendio & Roldan (Proc. R. Soc. Lond. B 243, 181 (1991)). Instead, we found a positive correlation between sperm length and the length of female sperm storage tubules (SSTS) and a negative ...
J V, Briskie, R, Montgomerie
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Sperm‐sperm associations in the loris epididymis
Gamete Research, 1987AbstractIn a few mammals, the passage of maturing spermatozoa through the epididymis is characterized by development of persistent associations between one or more neighboring cells over the acrosomal region. The converse situation is described here in the loris, Nycticebus coucang, a prosimian primate.
D M, Phillips, J M, Bedford
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American Journal of Reproductive Immunology, 1992
ABSTRACT: Antisperm antibodies (ASA) occur in 1% to 30% of infertile couples. Mechanisms by which ASA impair fertility include prevention of fertilization by decreasing acrosome reaction and/or zona pellucida binding, and postfertilization effects. Treatment for ASA involves assisted reproductive technologies.
A J, Peters, C B, Coulam
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ABSTRACT: Antisperm antibodies (ASA) occur in 1% to 30% of infertile couples. Mechanisms by which ASA impair fertility include prevention of fertilization by decreasing acrosome reaction and/or zona pellucida binding, and postfertilization effects. Treatment for ASA involves assisted reproductive technologies.
A J, Peters, C B, Coulam
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Sperm centriole disfunction and sperm immotility
Molecular and Cellular Endocrinology, 2000The two main causes of complete or nearly complete asthenozoospermia are necrozoospermia (presence of only non-viable spermatozoa) and the different ultrastructural abnormalities of spermatozoa. Ultrastructural alterations may affect also the function of the sperm centrosome, which can result in impaired motility.
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Trends in Cognitive Sciences, 2002
Evidence is accumulating that in many species, males deliver more sperm to some females and fewer to others depending on how valuable they perceive the copulation. Do humans have any control over the number of sperm they ejaculate?
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Evidence is accumulating that in many species, males deliver more sperm to some females and fewer to others depending on how valuable they perceive the copulation. Do humans have any control over the number of sperm they ejaculate?
openaire +2 more sources