منابع مشابه
Calcium Clearance Mechanisms of Mouse Sperm
The spermatozoon is specialized for a single vital role in fertilization. Past studies show that Ca2+ signals produced by the opening of plasma membrane entry channels initiate several events required for the sperm to reach and enter the egg but reveal little about how resting [Ca2+]i is maintained or restored after elevation. We examined these homeostatic mechanisms by monitoring the kinetics ...
متن کاملAn Overview of Calcium, Mechanisms and Necessities
Today, promoting quality of life and paying more attention to nutrition and health are among the major issues of international debate and governments' strategies to improve people's quality of life in different societies. There have also been extensive studies to improve nutrition and its relationship with health. The pattern of food consumption is different in most countries, different social ...
متن کاملDynamics of Calcium Clearance in Mouse Pancreatic -Cells
Pancreatic -cells maintain glucose homeostasis by their regulated Ca -dependent secretion of insulin. Several cellular mechanisms control intracellular Ca levels, but their relative significance in mouse -cells is not fully known. We used photometry to measure the dynamics of cytosolic Ca ([Ca ]i) clearance after brief, depolarization-induced Ca entry. Treatment with thapsigargin or cyclopiazon...
متن کاملThe Campeare of the Effects Progesterone and Calcium Lonophore (A23187) on Mouse Sperm Parameters and Fertilization Rate
Purpose: The aim of this study to investigate the effect of progestrone and calcium ionophore (A23187) on mouse sperm parameters and fertilization rate. Materials and Methods: Csauda epididymidis were then obtained from NMRI male mice (10-12 wk old) and were divided to three groups: Control, adding progesterone (10µg/ml) and addingionophore (10mM) After sperm were prepared and incuhated in T6 ...
متن کاملToxicity Mechanisms of Cigarette Smoke on Mouse Fetus Mitochondria
Maternal smoking has been recognized as a common cause of low birth weight, preterm birth and the decrease of gestational age period. Unfortunately, there is an increasing interest within public especially woman in Iran in the tobacco products consumption. On the other hand, the deleterious effect of maternal smoking on human fetus in pregnancy period especially in the first trimester encourage...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 2003
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.200308839