8 citations,
July 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Curly hair is mechanically different from straight hair and may need new testing methods.
2 citations,
September 2022 in “Frontiers in genetics” Different proteins are linked to the varying thickness of sheep and goat hair types.
2 citations,
January 1986 in “PubMed” PIXE is an effective method to analyze hair's elemental composition.
Yak hair stretches mainly due to macromolecules slipping past each other.
16 citations,
December 2006 in “Expert Review of Dermatology” Hair follicles are essential for skin health, aiding in hair growth, wound healing, and immune function.
15 citations,
September 2010 in “Annals of saudi medicine/Annals of Saudi medicine” Hair tourniquet syndrome is a rare condition where hair wraps around an infant's body part, needing quick removal to prevent damage.
6 citations,
April 2005 in “Journal of dermatological science” The study found nine new hair protein genes in human hair follicles.
Ancient herders in the Keriya Valley fed their animals mainly C3 plants, with some C4 plant feeding possibly due to herd movement or seasonal changes.
Prussian Blue causes hair cuticles to detach, weakening the hair.
44 citations,
January 2011 in “Journal of biotechnology” Scientists recreated human hair follicles in the lab that can grow hair.
23 citations,
June 2017 in “Rejuvenation Research” Minoxidil treatment increases aorta elasticity and reduces stiffness in aged mice, potentially helping with age-related heart issues.
19 citations,
May 2008 in “Applied spectroscopy” Human hair has different protein structures in its cuticle and cortex.
16 citations,
January 2018 in “Advances in experimental medicine and biology” Hair and wool have diverse keratins and keratin-associated proteins.
8 citations,
May 2020 in “International journal of biological macromolecules” Certain treatments can increase protein binding to natural hair but are less effective on permed hair.
1 citations,
April 2023 in “Langmuir” Damaged hair allows water to penetrate more easily, and fatty acids from shampoos can deposit on hair surfaces.
January 2024 in “Authorea (Authorea)” Using laccase to add poly(tyrosine) to wool makes it less likely to shrink and stronger.
Frizzy hair is fragile and can lead to hair loss and damage if not properly cared for.
December 2008 in “The Internet journal of surgery” A 16-year-old girl with a hair-eating disorder needed surgery to remove a hairball from her stomach and small bowel.
January 2005 in “Seibutsu Butsuri/Seibutsu butsuri” Chemical treatments damage hair more than UV exposure, making it thinner and less flexible.
72 citations,
July 2012 in “Journal of Investigative Dermatology” Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.
68 citations,
December 1991 in “Annals of the New York Academy of Sciences” Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.
58 citations,
November 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The Foxn1 gene is essential for normal nail and hair development.
42 citations,
April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.
36 citations,
April 2016 in “British journal of dermatology/British journal of dermatology, Supplement” A substance called VIP might protect hair follicles from being attacked by the immune system, and problems with VIP signaling could lead to hair loss in alopecia areata.
34 citations,
August 2003 in “Clinical and Experimental Dermatology” Pregnant women's hair gets thicker.
23 citations,
November 2021 in “Journal of Bionic Engineering” The new wound dressing helps skin heal faster and fights infection.
22 citations,
September 1982 in “Journal of ultrastructure research” Wool follicle cells are more complex than previously thought.
21 citations,
April 1990 in “Journal of comparative neurology” The study found that nerve signals are stronger when there are more connection points, but not necessarily denser, along the nerve's path in the spine.
17 citations,
October 2017 in “Scientific reports” Fine wool sheep have more genes for wool quality, while coarse wool sheep have more for skin and muscle traits.
16 citations,
October 1992 in “Journal of cutaneous pathology” Bubble hair deformity may be caused by hair shaft trauma and can improve with gentle hair care.