September 2017 in “Journal of Investigative Dermatology” Hair follicle cells change their DNA packaging during growth cycles and when grown in the lab.
835 citations
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October 2008 in “Nature Genetics” Lgr5 is a marker for active, long-lasting stem cells in mouse hair follicles.
December 2025 in “Preprints.org” Aging dermal papilla cells can be reprogrammed for potential hair growth and skin repair.
October 1988 in “Pediatric research” Certain maturity signs appear before and after the first release of sperm in boys.
32 citations
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April 2016 in “Journal of Investigative Dermatology” STAT5 activation is crucial for starting the hair growth phase.
36 citations
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October 1993 in “British Journal of Dermatology” Human hair follicles can grow in a lab for at least 9 days without serum, keeping their natural characteristics.
1 citations
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April 2001 in “Biological Rhythm Research” Deuterium oxide extends the hair cycle duration in mice without changing hair structure.
February 2025 in “International Journal of Molecular Sciences” RORA plays a key role in controlling seasonal hair molting by affecting hair follicle cell activity.
46 citations
,
November 2007 in “Gene Expression Patterns” Trps1 plays a key role in hair follicle development and cycling.
1 citations
,
November 2022 in “Journal of Investigative Dermatology” ALRN-6924 may prevent hair loss caused by chemotherapy.
56 citations
,
January 1970 in “Cell and Tissue Research”
13 citations
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May 1993 in “International Journal of Dermatology” The paper suggests that telogen effluvium, a type of hair loss, may be a long-lasting condition triggered by stress or illness in people whose hair growth is unusually synchronized.
83 citations
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February 1977 in “PubMed” Increasing light exposure in winter can make mares ovulate and cycle earlier.
154 citations
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October 1996 in “Proceedings of the National Academy of Sciences of the United States of America” Estrogen affects hair growth and skin cell multiplication.
September 2022 in “Journal of Case Reports and Medical History” Many new moms lose hair after childbirth due to hormonal changes, but it usually grows back within a year.
November 1995 in “Journal of Pediatric Health Care” Most hair loss in kids and teens is due to common conditions, and hair usually grows back within 6 months.
October 2021 in “Research Square (Research Square)” Melatonin affects certain genes and pathways involved in cashmere goat hair growth.
Oxidized hair can naturally regain strength and stability over six months.
April 2023 in “Journal of Investigative Dermatology” ALRN-6924 can protect hair follicles from chemotherapy damage by temporarily stopping cell division.
3 citations
,
August 2004 in “Veterinary Dermatology” Supplementing vitamins and minerals prevented hair loss in Icelandic horses.
101 citations
,
March 2019 in “Cell Stem Cell” Certain immune cells in the skin release a protein that stops hair growth by keeping hair stem cells inactive.
8 citations
,
September 2002 in “Genes to Cells” Killing specific cells in hair follicles can lead to hair growth problems in mice.
1 citations
,
January 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Weak cell junctions disrupt hair follicle stem cell rest.
26 citations
,
December 1999 in “Journal of Investigative Dermatology” Certain genes are linked to wool follicle structure and function, but not hair cycle regulation.
7 citations
,
January 2019 in “Pharmaceutical Biology” Eclipta prostrata helps hair growth and maintains the growth phase by affecting certain growth factors.
Non-immune dermal cells dominate, epidermal cells increase after day 9, and certain immune cells persist beyond inflammation in wound-induced hair follicle regeneration.
231 citations
,
October 1999 in “Journal of Clinical Investigation” Activating the Sonic hedgehog gene in mice can start the hair growth phase.
February 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” Cashmere goat hair growth follows a cycle with distinct growth, regression, and resting periods, influenced by specific genes.
June 2021 in “Research Square (Research Square)” Melatonin can increase cashmere yield by altering gene expression and restarting the growth cycle early.
November 2021 in “CRC Press eBooks” Telogen effluvium is a common, temporary hair loss condition often affecting young women.