Reducing agents induce microtubule extrusion in demembranated mammalian spermatozoa
نویسندگان
چکیده
منابع مشابه
The Interaction between Metals and Chelating Agents in Mammalian Spermatozoa
Several studies have been made on the bacteriostatic and fungicidal properties of oxine (8-hydroxyquinoline) and other chelating agents, and it has been suggested that they might act, in part at least, by depriving cells of essential trace metals (Albert, 1951; Martell & Calvin, 1952). In an attempt to determine the trace element requirements of mammalian spermatozoa, White (1955) investigated ...
متن کاملBioluminescent magnetic nanoparticles as potential imaging agents for mammalian spermatozoa.
BACKGROUND Nanoparticles have emerged as key materials for developing applications in nanomedicine, nanobiotechnology, bioimaging and theranostics. Existing bioimaging technologies include bioluminescent resonance energy transfer-conjugated quantum dots (BRET-QDs). Despite the current use of BRET-QDs for bioimaging, there are strong concerns about QD nanocomposites containing cadmium which exhi...
متن کاملProstaglandins induce calcium influx in human spermatozoa.
Progesterone, prostaglandin and follicular fluid are reported to enhance the acrosome reaction through the influx of extracellular calcium into the cytoplasm of human spermatozoa. Prostaglandins are present within the male reproductive tract, and high concentrations of prostaglandins exist in seminal fluid. In order to investigate the mechanisms by which prostaglandins enhance the acrosome reac...
متن کاملChemical Dissection of Mammalian Spermatozoa
Mammalian spermatozoa have been dissected by a variety of chemical techniques to yield free heads, tails with attached midpieces, and tails without mitochondria. By brief exposure to trypsin, mouse and rat spermatozoa were cleaved at the junction of the head and the tail, while human, guinea pig and rabbit spermatozoa were cleaved by trypsin only after prior incubation with a sulphhydryl reduci...
متن کاملVoltage dependent calcium channels in mammalian spermatozoa.
Calcium influx is an absolute requirement for the physiological acrosome reaction in sperm from all sources examined, both invertebrate and mammalian. Pharmacological studies suggest that the major channel in the sperm head plasma membrane responsible for modulating calcium entry and intracellular ionized calcium levels could be either an L-type (a class of high voltage-activated) or a T-type (...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Reproduction
سال: 2004
ISSN: 1470-1626,1741-7899
DOI: 10.1530/rep.1.00324