Clock mutation lengthens the circadian period without damping rhythms in individual SCN neurons.

Abstract excerpt

Spontaneous discharges of individual neurons in the suprachiasmatic nucleus (SCN) of Clock mutant mice were recorded for over 5 days in organotypic slice cultures and dispersed cell cultures using a multi-electrode dish. Circadian rhythms with periods of about 27 hours were detected in 77% of slice cultures and 15% of dispersed cell cultures derived from Clock/Clock homozygotes. These findings indicate that the...

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