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Evidence for a role of intracellular-calcium release in nitric oxide-stimulated relaxation of the rabbit corpus cavernosum
Calcium erection thapsigargin ryanodine
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2009/2/17
Erection is mediated by relaxation of the smooth muscle elements within the sinusoids of the corpus cavernosum. Although cavernosal relaxation can be mediated by a variety of mechanisms including pu...
Intracellular calcium accumulation and responsiveness to progesterone in capacitating human spermatozoa
Spermatozoa [Ca2+]i progesterone capacitation
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2009/2/7
Progesterone induced a rapid, long-lasting, dose-dependent increase of intracellular free calcium concentration ([Ca2+]i) in human sperm capacitated overnight. This effect was not counteracted by th...
Measurement of intracellular calcium concentration and plasma membrane potential in human spermatozoa using flow cytometry
Measurement intracellular calcium concentration plasma membrane potential human spermatozoa
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2008/12/25
We report 2 novel approaches using flow cytometry to measure intracellular calcium concentration and plasma membrane potential in human spermatozoa. Both approaches have the potential to measure dif...
Androgens Induce Increases in Intracellular Calcium Via a G Protein–Coupled Receptor in LNCaP Prostate Cancer Cells
5-Dihydrostestosterone Ca2+ GPCR
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2008/12/24
The receptor mechanism of testosterone-induced nongenomic Ca2+ signaling in prostate cancer cells is poorly understood. In this study we investigated androgen-induced intracellular Ca2+ increa...