doi: 10.1111/j.1600-079x.1986.tb00759.x.
Rats on 22.5-hr light:dark cycles have vaginal opening earlier than rats on 26-hr light:dark cycles
- PMID:3783418
- DOI: 10.1111/j.1600-079x.1986.tb00759.x
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Rats on 22.5-hr light:dark cycles have vaginal opening earlier than rats on 26-hr light:dark cycles
S Lehrer. J Pineal Res.1986.
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Abstract
Rats on 22.5-hr light:dark cycles had vaginal opening significantly earlier than rats on 26-hr light:dark cycles. This finding might explain the early menarche in blind girls: Their circadian rhythms, like those of rats on 22.5-hr cycles, might be more rapid than normal. Thus a set number of cycles can occur in a shorter time than usual, allowing puberty to take place early.
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