38 citations
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August 2012 in “Biochemical and biophysical research communications” This study found that leukocytes and beard hair follicle cells have an endogenous circadian clock, with PER1 and PER3 expression possibly serving as biomarkers for assessing individual biological clock traits.
December 2022 in “Nature Communications” This study found that a new "bead-jet" printing system for mesenchymal stem cells in Matrigel beads improved skeletal muscle regeneration and skin healing in a high-density, sparse pattern.
124 citations
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April 1992 in “Journal of Endocrinology/Journal of endocrinology” This study observed that cells from androgen-sensitive areas like the beard and scrotum showed higher androgen receptor levels compared to those from non-balding scalp areas, supporting the role of dermal papilla in follicle growth responses to androgens.
12 citations
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January 2019 in “Sleep medicine” This study found that night shift work disrupts clock gene expression in Japanese men, particularly affecting rhythms and levels of Period3 and Nr1d2, based on the shift schedule.
31 citations
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October 1971 in “Steroids” This study found that human beard hair follicles metabolize dehydroepiandrosterone into various compounds at significantly higher rates than those reported for human skin, suggesting unique metabolic processes in hair follicles.