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Article

Free running circadian rhythms of melatonin, luteinizing hormone, and cortisol in Syrian hamsters bearing the circadian tau mutation.

Endocrinology - 1 Feb 1999

Lucas R J, Stirland J A, Darrow J M, Menaker M, Loudon A S

Abstract excerpt

The tau mutation of Syrian hamsters induces a robust reduction in the period of circadian activity rhythms, from 24 h (wild-type; tau++) to 22 h (heterozygote; tauS+) and 20 h (homozygous mutant, tauSS). Here, we examine the effect of this mutation on circadian rhythms of LH, melatonin, and cortisol in ovariectomized hamsters. Free running circadian rhythms were observed in all three hormones. In each genotype,...

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Identifiers

PMID: 9927303
DOI: 10.1210/endo.140.2.6538

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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