This study found that in both rodents and humans, knee laxity increased at certain phases of the reproductive cycle due to sex-steroid influence, particularly under high levels of estrogen and progesterone.
159 citations
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July 2006 in “Endocrine Reviews” This article discusses the influence of estrogens on hair follicle growth and metabolism, suggesting a significant role alongside androgens in hair growth control but reports no new clinical results.
53 citations
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November 2006 in “Journal of Endocrinology” This study found that prolactin plays a direct role in regulating the timing of hair growth cycles in mice by affecting the skin, rather than through other endocrine factors.
24 citations
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May 2018 in “Journal of Molecular Endocrinology” This article discusses the discovery of the first known menstruating rodent, the spiny mouse, and proposes that a significant increase in progesterone during the luteal phase is a unique feature of menstruating species, but reports no new experimental results.
20 citations
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February 2004 in “Veterinary dermatology” This study found that the season of the year does not significantly affect the hair regrowth rate or the telogen: anagen ratio in indoor-housed Labrador retrievers.