June 2023 in “Experimental dermatology” Pubic hair has a thicker, more protective outer layer than scalp hair, possibly due to evolution.
12 citations
,
February 1997 in “British Journal of Dermatology” The enzyme type 1 5α-reductase is more active in the hair follicle's lower part than in the skin's outer layer.
June 1996 in “Journal of Dermatological Science” Vitamin D3 applied to mouse skin caused more wrinkles and sagging due to changes in the skin's outer layer.
18 citations
,
August 2014 in “Lipids” Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
5 citations
,
March 2009 in “Pediatric Dermatology” The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.
25 citations
,
December 2018 in “Journal of Investigative Dermatology” TRPV4 slows hair growth by affecting hair follicle cells.
23 citations
,
June 2015 in “Experimental Dermatology” Pericytes can both help and hinder wound healing, needing more research for effective use in treatments.
The model explains how mammal ear hair cells respond to sound and adapt.
16 citations
,
May 2017 in “Journal of Clinical Ultrasound” A rare finger tumor was imaged, showing a unique pattern not seen before.
7 citations
,
August 2013 in “Experimental and Therapeutic Medicine” 1,25-dihydroxyvitamin D3 helps melanocyte precursors from hair follicles grow and produce melanin, aiding vitiligo treatment understanding.
101 citations
,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists turned mouse stem cells into skin cells that can grow into skin layers and structures.
82 citations
,
September 2018 in “Nature Communications” A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.
68 citations
,
December 1983 in “British Journal of Dermatology” Major histocompatibility antigens are found in specific skin cells and structures, but not in sweat glands.
66 citations
,
February 2015 in “Cell & tissue research/Cell and tissue research” The document concludes that there are no effective clinical treatments for hearing loss due to hair cell damage, but research is ongoing.
43 citations
,
April 2010 in “Developmental Biology” Sebaceous glands can form new hair follicles when activated, but hair follicle bulges cannot.
39 citations
,
November 2007 in “Journal of Histochemistry & Cytochemistry” NG2 is crucial for normal skin and hair development in mice.
37 citations
,
February 2007 in “Experimental Dermatology” Increasing PDCD4 protein may help prevent or treat some skin cancers.
34 citations
,
February 2012 in “American Journal of Dermatopathology” Calretinin can help identify certain skin structures and tumors.
34 citations
,
October 1998 in “PubMed” Future drugs targeting specific hair growth steps could improve treatments for hair growth issues.
31 citations
,
May 2019 in “Nature communications” Single Blimp1+ cells can create functional sebaceous gland organoids in the lab.
28 citations
,
September 2013 in “European Journal of Histochemistry” Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.
12 citations
,
April 2025 in “Discover Pharmaceutical Sciences” Microneedle patches offer painless, effective drug delivery and are suitable for all ages.
8 citations
,
February 1968 in “Australian Journal of Zoology” The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.
4 citations
,
January 2011 in “Dermatology” A patient grew extra hair on their ears after treatment for testicular cancer, possibly due to hormonal changes or genetics.
3 citations
,
February 2022 in “Canadian Medical Association Journal” Severe hypothyroidism can cause eyebrow hair loss, but improves with thyroid hormone treatment.
3 citations
,
December 2018 in “Routledge eBooks” Hair is made of strong keratin fibers that protect against the environment.
2 citations
,
June 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Corneal regeneration relies on distinct stem cell compartments in the limbal niche.
2 citations
,
October 2007 in “Kafrelsheikh Veterinary Medical Journal” Buffalo lips are well-suited for eating plants.
1 citations
,
October 2022 in “Bioengineering” Keratin helps skin cells mature when added to a collagen mix, which could be important for skin and hair health.
Microneedles could revolutionize pediatric medicine by offering painless drug delivery, but more development is needed.