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Cytogenetic studies in human sperm
Human Genetics, 1991Sperm chromosome studies were performed in seven males. One of them had a history of exposure to lysergic acid (LSD) although he was free of the drug for 1 year before the study began. Sixteen ejaculates provided a total of 555 fully analyzable sperm cells. The overall frequency of hyperhaploid sperm cells was 2% and that of structural abnormality 3.6%.
A M, Estop +4 more
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Acrosome markers of human sperm
Anatomical Science International, 2016Molecular biomarkers that can assess sperm acrosome status are very useful for evaluating sperm quality in the field of assisted reproductive technology. In this review, we introduce and discuss the localization and function of acrosomal proteins that have been well studied.
Chizuru, Ito, Kiyotaka, Toshimori
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Freeze preservation of human sperm
American Journal of Obstetrics and Gynecology, 1969Abstract Freeze preservation of human sperm for the purposes of delayed artificial insemination is a practical method, although the results are somewhat less favorable (48.2 per cent) than those obtained with the use of fresh human sperm (68 per cent). No problems were encountered with the delivery and no abnormalities were noted in 29 offspring. The
S J, Behrman, D R, Ackerman
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Solubilization of Human Sperm Antigens
Archives of Andrology, 1985Various methods of solubilization of human sperm antigens were compared by testing the sperm extracts against rabbit antihuman spermatozoa immune serums with double immunodiffusion and rocket immunoelectrophoresis. Marked differences were found in the protein contents and the SDS-PAGE protein patterns of the extracts.
J, Suominen, M, Kallajoki, B, Djupsund
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Analysis of Fibronectin on Human Sperm
Journal of Urology, 1997The purpose of this study was to localize fibronectin on human sperm and correlate its distribution with the morphological and functional integrity of sperm.Semen samples were collected and sperm fractionated by swim-up. Subsets of the swim-up sperm were capacitated and acrosome reacted. Damage to swim-up sperm was induced by freezing and thawing.
L A, Pinke +5 more
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Teratogenesis, Carcinogenesis, and Mutagenesis, 1997
Since the 1970s there have been conflicting reports of decreasing sperm counts in man and increasing testicular cancer. There is a hypothetical link between apparent adverse trends in several measures of human reproductive health and exposure to endocrine disrupters.
D, Anderson +5 more
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Since the 1970s there have been conflicting reports of decreasing sperm counts in man and increasing testicular cancer. There is a hypothetical link between apparent adverse trends in several measures of human reproductive health and exposure to endocrine disrupters.
D, Anderson +5 more
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Ultrastructure of the ejaculated human sperm
Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1969The ultrastructure of the ejaculated human sperm follows the general pattern known from other mammalian sperms. However, certain features are peculiar to the human sperm. The chromatin is often granular giving it an unmature appearance, the mitochondrial helix is often unorderly arranged, the longitudinal columns of the fibrous sheath and the annular ...
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Evaluation of human sperm function
British Medical Bulletin, 1990Our understanding of the causes of male infertility and our ability to develop an appropriate range of diagnostic tests are both dependent upon a knowledge of the cellular mechanisms responsible for the regulation of human sperm function. This review examines the intra- and extracellular factors regulating four separate components of human sperm ...
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Chromosome Abnormalities in Human Sperm
1985The ability to analyze human sperm chromosome complements after penetration of zona pellucida-free hamster eggs provides the first opportunity to study the frequency and type of chromosomal abnormalities in human gametes. Two large-scale studies have provided information on normal men.
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Differentiation, 1984
To study the movement of human sperm, we have developed a microflow cell by miniaturizing our design for a preparative fractionation flow column. The microflow cell enabled us to view the movement of sperm over periods as long as 2 min. Sequential steps of filming, editing, and analysis revealed that the curved swimming patterns of sperm swimming in ...
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To study the movement of human sperm, we have developed a microflow cell by miniaturizing our design for a preparative fractionation flow column. The microflow cell enabled us to view the movement of sperm over periods as long as 2 min. Sequential steps of filming, editing, and analysis revealed that the curved swimming patterns of sperm swimming in ...
openaire +2 more sources