92 citations
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June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
40 citations
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May 2005 in “Journal of Cell Science” Truncated LTBP-1 disrupts TGF-β signaling, affecting hair growth.
64 citations
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March 2005 in “Journal of Investigative Dermatology” Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.
78 citations
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June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” TGF-β1 from dermal papilla cells suppresses hair growth, and targeting it may help treat androgenetic alopecia.
36 citations
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December 2002 in “Experimental dermatology” Barley extract, specifically procyanidin B-3, can promote hair growth and counteract growth inhibition.
37 citations
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January 2002 in “British journal of dermatology/British journal of dermatology, Supplement” Apple extract called procyanidin B-2 was found to greatly increase hair growth.
520 citations
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February 2001 in “Journal of Clinical Investigation” VEGF helps hair grow and determines follicle size by increasing blood vessel growth.
140 citations
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December 1998 in “Journal of Investigative Dermatology” Apoptosis in hair follicles varies by growth phase, with TGF-β possibly starting the catagen phase.
227 citations
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January 1998 in “Journal of Endocrinology” Cells from balding scalps have more androgen receptors than cells from non-balding scalps.
148 citations
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October 1997 in “Journal of Investigative Dermatology” 219 citations
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July 1995 in “PubMed” Keratinocyte growth factor promotes hair growth and reduces hair loss from chemotherapy.
173 citations
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July 1995 in “Biochemical and biophysical research communications” Male hormones promote hair cell growth by using a growth factor from nearby skin cells.
30 citations
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August 1993 in “PubMed” IL-1 alpha stops hair follicle growth and hair production.
385 citations
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November 1990 in “Journal of Cell Science” Human hair follicles can grow in a lab setting.