January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Apoptotic cells may trigger cell death in hair follicles during their regression cycle.
28 citations
,
March 1942 in “Journal of Endocrinology” Male rats grow hair faster than females, and certain hormones can slow or slightly increase hair growth, but not significantly beyond natural rates.
91 citations
,
July 1997 in “Dermatologic Clinics” Laser hair removal is an advanced and effective method for removing unwanted hair.
October 2023 in “Oncotarget” Apoptotic cells help cause hair follicle cell death during regression.
19 citations
,
May 2007 in “Dermatologic therapy” The document concludes that various treatments, including laser therapy, are effective for managing pseudofolliculitis barbae, especially in darker skin types.
39 citations
,
November 2007 in “Experimental dermatology” Human hair follicles contain a complex network of prostanoid receptors that may influence hair growth.
March 2023 in “Journal of Student Research” Humans likely became hairless to better regulate body temperature.
Hairlessness in mammals is due to complex genetic changes in both genes and regulatory regions.
41 citations
,
March 1998 in “Archives of Dermatological Research” The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.
May 2009 in “Medical and surgical dermatology/Medical & surgical dermatology” Hair and nail conditions can stabilize or improve over time, and new treatments show promise.
June 2023 in “JAAD case reports” The document concludes that "hot comb alopecia" is now called "central cicatricial centrifugal alopecia" and its causes are complex.
June 2016 in “Experimental Dermatology” Changing hair follicle identity could potentially reverse balding.
October 2023 in “Ho Chi Minh City Open University Journal of Science - Engineering and Technology” Human hair follicle cells have specific features.
1 citations
,
May 2013 in “PubMed” The document concludes that female pattern baldness involves hair thinning, is classified differently than in men, and is assessed using the Ludwig classification. It also explains the hair growth cycle stages.
Hair dysplasias involve various hair disorders causing fragility, breakage, and poor hair adhesion.
10 citations
,
October 2000 in “PubMed” E6/E7 oncogenes in hair follicles cause continuous hair growth by skipping the resting phase.
1 citations
,
March 2022 in “Journal of Dermatological Science” Adding TERT and BMI1 to certain skin cells can improve their ability to create hair follicles in mice.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Electrical epilation damages hair follicles and surrounding skin, likely preventing hair regrowth.
1 citations
,
August 2020 The Shaven mutation in mice affects hair growth and causes a greasy coat due to abnormal lipid content.
5 citations
,
July 2020 in “Curēus” Beard hair loss can signal early diabetes and thyroid issues, treatable with specific cream.
January 2026 in “International Society of Hair Restoration Surgery” 1 citations
,
January 1995 in “Hair transplant forum international”
Aluminum phosphide poisoning can cause horizontal nail grooves and hair loss.
27 citations
,
January 1995 Melanin in black hair protects it from sun damage better than light-brown hair.
1 citations
,
January 2015 in “Indian Journal of Veterinary Pathology” Two dogs had different types of hair follicle tumors.
7 citations
,
March 2003 in “PubMed” The scalp has a natural speckled pattern of increased pigment around hair follicles, possibly linked to local hormone production.
6 citations
,
December 2019 in “International Journal of Cosmetic Science” White hair has weaker tryptophan fluorescence than other unpigmented fibers, possibly due to UV exposure or unknown substances.
4 citations
,
May 2006 in “médecine/sciences” The hairless gene is crucial for hair health, and its mutations cause hair loss.