Abstract

Interleukin-1&beta;(IL-1&beta;) is an important porinflammatory cytokine that exert wide biological functions in the central nervous system (CNS). Voltage-gated Ca<sup>2+</sup> channels in plasma membrane are essential components of Ca<sup>2+</sup> signal whose change on pathological conditions is closely related to processes of diseases. Although both IL-1&beta;and Ca<sup>2+</sup> channels have key roles in injury and disease of the brain, so far their relations have been reported in few studies. The effects of IL-1&beta;on Ca<sup>2+</sup> channels in cultured cortical neurons of rats were investigated using patch-clamp recording in present research. Our results showed that both 10 and 50 ng/mL of IL-1&beta;treatment inhibit the Ca<sup>2+</sup> currents in time and dose dependent manner, without the change of activation properties of voltage-gated Ca<sup>2+</sup> channels (VGCC)s.

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