December 2015 in “OPAL (Open@LaTrobe) (La Trobe University)” This study found that estrogen treatment induced premature catagen and apoptosis in hair follicles of wild-type mice, while having no effect on mice lacking estrogen receptor α.
September 2004 in “Kitasato medical journal” This study found that a high dose of epidermal growth factor induced hair loss in sheep by causing apoptosis in anagen hair and transitioning the hair cycle to catagen.
47 citations
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April 2000 in “The American journal of pathology” This study found that overexpressing human Bcl-2 in mice protected epidermal keratinocytes from UVB-induced apoptosis but unexpectedly increased apoptosis during hair follicle regression and chemotherapy.
19 citations
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July 2015 in “Journal of Ginseng Research” In this study, Korean Red Ginseng showed protective effects against chemotherapy-induced premature hair follicle aging in an in vitro model by modulating specific cellular protein expressions.
7 citations
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April 2013 in “Clinical and Experimental Dermatology” This study found that tianeptine may suppress the transition to catagen, promoting hair growth in a stress-induced alopecia areata mouse model.