GHRH and IL1beta regulate sleep via the hypothalamus. However, actions of these substances on neurons are poorly understood. In this study, we found both GHRH (100 nM) and IL1beta (1.2 pM) acutely increased cytosolic Ca(2+) in 7.6 and 4.0% of cultured hypothalamic neurons tested, respectively, and 1.2% of neurons responded to both. The neurons that responded were mostly GABAergic (96, 81, and 100% for GHRH, IL1beta, and dual-responsive neurons, respectively).
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| http://dx.doi.org/10.1016/s0006-8993(02)03157-8 | DOI Listing |
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