نتایج جستجو برای: neuronal calcium sensor

تعداد نتایج: 465421  

2014
Lu-Yun Lian Sravan R. Pandalaneni Paul A. C. Todd Victoria M. Martin Robert D. Burgoyne Lee P. Haynes

In neurons, entry of extracellular calcium (Ca(2+)) into synaptic terminals through Cav2.1 (P/Q-type) Ca(2+) channels is the driving force for exocytosis of neurotransmitter-containing synaptic vesicles. This class of Ca(2+) channel is, therefore, pivotal during normal neurotransmission in higher organisms. In response to channel opening and Ca(2+) influx, specific Ca(2+)-binding proteins assoc...

Journal: :International Journal of Molecular Sciences 2009
Jolanta Skalska Piotr Bednarczyk Marta Piwońska Bogusz Kulawiak Grzegorz Wilczynski Krzysztof Dołowy Alexei P. Kudin Wolfram S. Kunz Adam Szewczyk

The mitochondrial response to changes of cytosolic calcium concentration has a strong impact on neuronal cell metabolism and viability. We observed that Ca(2+) additions to isolated rat brain mitochondria induced in potassium ion containing media a mitochondrial membrane potential depolarization and an accompanying increase of mitochondrial respiration. These Ca(2+) effects can be blocked by ib...

A Rafiq M Raza R Delorenzo S Pal

Glutamate induces excitotoxic damage to hippocampal pyramidal neurons in Status Epilepticus (SE) and epilepsy. In this study, we investigated time course of dysregulation of calcium homeostasis at various intervals after an episode of SE in acutely isolated CA1hippocampal pyramidal. For this purpose, male Sprague-Dawley rats (200 g) were subjected to pilocarpine-induced SE. The SE was blocked a...

HJ Kim JJ Sung KW Lee M Kim WM Cho YH Hong

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterized by the progressive loss of motor neurons leading to paralysis and death. Mutations of the human Cu/Zn superoxide dismutase (SOD1) are found in some cases of familial ALS (fALS). Recent evidences suggest the accumulation of intracellular calcium is one of the primary mechanisms of motor neuronal degeneration. In th...

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