29 citations
,
July 2003 in “Experimental Dermatology” The upper hair follicle is stable, while the lower part allows movement during hair growth.
September 2023 in “bioRxiv (Cold Spring Harbor Laboratory)” Some hair growth cells remain in partially bald areas of Indian men with hair loss.
91 citations
,
December 2006 in “Proceedings of the National Academy of Sciences” Hair patterns in mice are controlled by both a global system dependent on Fz6 and a local self-organizing system.
3 citations
,
July 2023 in “Frontiers in Aging” Hair follicle stem cells change states with age, affecting hair growth and aging.
17 citations
,
June 2012 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Hair in mammals likely evolved from glandular structures, not scales.
8 citations
,
February 2005 in “British Journal of Haematology” Chemotherapy caused the patient's hair to have alternating thick and thin segments.
November 2025 in “Communications Biology” Human hair contains many different molecules that change along its length, influenced by personal care products.
9 citations
,
June 2024 in “Cell Reports” Hair follicles play a crucial role in regulating skin barrier function.
87 citations
,
August 1974 in “Journal of Investigative Dermatology”
40 citations
,
June 2013 in “Biomaterials” Scientists created 3D hair-like structures that could help study hair growth and test treatments.
6 citations
,
February 2014 in “Experimental Dermatology” Hair follicle regeneration is possible but challenging, especially in humans, due to the need for specific cells and a better understanding of how they signal growth.
Benign tumors from hair follicles can look like other skin cancers but have distinct features under dermoscopy.
3 citations
,
August 2020 in “International Journal of Molecular Sciences” Blocking Rab27a slows hair growth, while blocking Rab27b encourages it.
66 citations
,
January 2000 in “Hormone Research in Paediatrics” Androgens can both promote and prevent hair growth due to differences in gene expression in hair follicles.
12 citations
,
May 2003 in “Journal of dermatological science” Hsc70 protein may influence hair growth by responding to androgens.
3 citations
,
January 1994 in “Journal of Society of Cosmetic Chemists of Japan” Hair grows slower and thinner with age, but a test tonic improved growth in alopecia subjects.
181 citations
,
January 2009 in “Nature Genetics” Certain mutations in a hair growth-related gene cause a type of genetic hair loss.
51 citations
,
December 2003 in “The FASEB Journal” The substance AS101 can help hair grow by slowing down hair cell aging and boosting a hair growth protein.
April 2016 in “Journal of Investigative Dermatology” Autophagy, a cell recycling process, is crucial for prolonged hair growth and could be a potential target for treating hair growth disorders.
July 2023 in “International journal of physiology” Hypertrichosis lanuginosa causes excessive fine hair growth, often linked to genetics or cancer, with limited treatment options.
2 citations
,
November 1996 in “PubMed” Most people have similar hair protein patterns, but a rare variant was found in two women.
September 2023 in “Scientific reports” Segmental hair analysis can track testosterone over time but needs adjustments for sex, hair color, and washing frequency.
October 2005 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Activating telomerase can boost hair follicle stem cell growth and hair production.
13 citations
,
January 2002 in “Biochemical and biophysical research communications” Interferon β from hair cells stops the growth of other hair cells.
2 citations
,
November 2024 in “PeerJ” Long non-coding RNAs play a role in hair growth stages of Hetian sheep, affecting wool quality.
245 citations
,
January 1998 in “Genes & Development” Hoxc13 gene is essential for hair, nail, and papilla development.
96 citations
,
December 1995 in “Journal of Investigative Dermatology”
4 citations
,
November 2020 in “BMC Dermatology” Researchers identified genes in scalp hair follicles that may affect hair traits and hair loss.
15 citations
,
July 2016 in “Biochemical Journal” Wnt proteins from certain skin cells are crucial for normal hair growth and renewal.
January 2012 in “International Journal of Trichology” Two siblings have a rare genetic condition causing curly, coarse hair.