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Voltage-gated calcium channels are key components in a variety of physiological processes. Within the last decade an increasing number of voltage-gated Ca(2+) channelopathies in both humans and animal models has been described, most of which are related to the neurologic and muscular system. In humans, mutations were found in L-type Ca(v)1.2 and Ca(v)1.4 Ca(2+) channels as well as the non-L-type Ca(v)2.1 and T-type Ca(v)3.2 channels, resulting in altered electrophysiologic properties. Based on their widespread distribution within the CNS, voltage-gated calcium channels are of particular importance in the etiology and pathogenesis of various forms of epilepsy and neuropsychiatric disorders. In this review we characterise the different human Ca(2+) channelopathies known so far, further illuminating basic pathophysiologic mechanisms and clinical aspects. |
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