July 2026 in “British Journal of Dermatology” This study observed that administering low-dose oral minoxidil during the daytime led to significantly greater hair density improvements in androgenetic alopecia patients compared to nighttime dosing. This suggests that circadian variations in hair follicle biology could be important for optimizing treatment outcomes.
49 citations
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April 2016 in “International journal of molecular sciences” This study found that shift nurses exhibited lower circadian variations compared to daytime nurses, indicating an adjustment of their biological clocks to continuous shift schedules.
July 1996 in “Annals of Internal Medicine” This letter discusses preliminary findings suggesting wrist actigraphy may be useful for monitoring sleep in cirrhotic patients, but emphasizes the need for further validation before replacing sleep diaries.
10 citations
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August 2014 in “Skin research and technology” This study found that variations in sleep patterns, free testosterone, and 5-alpha-reductase type 1 activity are associated with changes in sebum excretion in women, which may contribute to variability in acne studies.
15 citations
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October 2012 in “Journal of circadian rhythms” This study found that extracting RNA from equine hair follicles can effectively identify 24-hour oscillations of specific circadian clock genes, offering a valuable non-invasive method to evaluate the equine circadian clock.