Sperm, male reproductive cell, produced by most animals. In higher vertebrates, especially mammals, sperm are produced in the testes. The sperm unites with (fertilizes) the ovum (egg) of a female to produce a new offspring. Mature sperm have two distingu
In sperm cells, the majority of coenzyme Q10 (CoQ10) an energy promoting agent and antioxidant, is concentrated in the mitochondria of the midpiece, so that the energy for movement and all other energy-dependent processes in the sperm cell also depend on the availability of CoQ10. The ...
Semen quality and fertility has declined over the last 50 years, corresponding to ever-increasing environmental stressors. However, the cellular mechanisms involved and their impact on sperm functions remain unknown. In a repeated sampling human cohort s
Sperm is a type of cell with specialized function and morphology. It carries the male partner’s genetic material and proteins to find and fuse with the female oocyte at fertilization1. Mature mammalian sperm consists of two main parts: a head with nucleus and acrosome, and a long tail for...
Interestingly, bacteria can induce different damages on sperm cells such as DNA fragmentation, cell membrane peroxidation, and acrosome impairment. Such negative effects can be mediated by bacteria-secreted toxins and metabolites or by direct attachment of bacteria on the sperm cells and subsequent ...
The 'S' shaped duplex gland, the shortest among the male reproductive glands, ultrastructurally exhibits only a single cell type, characterized by the presence of multishaped rough endoplasmic reticulum, polymorphic Golgi bodies and vesicles. The frequent mode of secretion appears apocrine, with occasi...
To determine whether acrosome function scoring—including acrosomal enzyme (AE) levels and acrosome reaction (AR) results—can predict fertilization rate in vitro. We examined the predictive value of acrosomal enzymes (AE) determined by spectrophotometry
Cytoplasmic Microtubules and Their Functions Keywords: cell membranes; lipids; biomolecular leaflet; monomolecular film; protein KR Porter - John Wiley & Sons, Ltd 被引量: 471发表: 1966年 Evidence For Four Classes of Microtubules in Individual Cells Behnke O, Forer A. O Behnke,A Forer - 《Jour...
Role of Major Sperm Protein (MSP) in the Protrusion and Retraction of Ascaris Sperm Thomas M.Roberts,MurrayStewart, inInternational Review of Cell and Molecular Biology, 2012 4.1.2MSP fiber protein 1 (MFP1): A negative regulator of fiber elongation ...
To test the intactness of sperm long RNAs, we also need precise annotation of the transcriptome in testis and sperm. However, the reference transcriptome (RefSeq) annotation is incomplete and unprecise. Testes, where germ cells (precursors of sperm) constitute ~90% of the cell population27,28...