September 2024 in “Journal of Clinical Medicine” Permanent makeup can cause delayed allergic reactions, but they can be managed with proper treatment.
October 2023 in “Animal production science” Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.
Hair fibers degrade and change color in very basic water.
May 2004 in “International Journal of Cosmetic Science” Melanogenesis inhibitors like kojic acid and niacinamide can reduce inflammation and pigment production in skin cells.
25 citations
,
May 2019 in “Heliyon” Hair treatments cause significant structural changes, especially with excessive heat, regardless of ethnicity.
82 citations
,
February 2017 in “Cold Spring Harbor Perspectives in Biology” The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.
75 citations
,
March 2014 in “Journal of Investigative Dermatology” Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.
50 citations
,
October 1918 in “The journal of experimental zoology” Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.
46 citations
,
July 1988 in “Journal of The American Academy of Dermatology” Hormone imbalances can cause specific skin changes, which may help in early detection of endocrine disorders.
20 citations
,
January 2015 in “Current problems in dermatology” Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.
18 citations
,
March 2004 in “Clinics in Dermatology” Lupus can cause hair loss and nail changes, with treatments available for both.
May 2023 in “Buletin Veteriner Udayana” Dogs with dermatitis show significant skin changes and higher white blood cell counts.
December 2021 in “Molecular genetics and genomics” Cats with abnormal hair had DSG4 gene changes causing hair problems.
January 2013 in “Journal of dermatology” A new medical syndrome may include skin changes, hair loss, sweating issues, bone malformations, leg swelling, and low cortisol.
January 2006 in “Yearbook of Dermatology and Dermatologic Surgery” Hair graying is caused by the loss of pigment cells due to poor maintenance of stem cells in the hair follicle.
19 citations
,
November 2012 in “British Journal of Dermatology” Dopamine stops hair growth and pigment production in human scalp hair follicles.
14 citations
,
October 2019 in “International Journal of Women's Health” Menopausal acne is treated with medications and lifestyle changes, but careful choice is needed due to side effects.
1 citations
,
January 2013 in “Springer eBooks” The document concludes that skin and nail changes can indicate various underlying health conditions.
Laser hair removal may cause skin changes that prevent hair regrowth.
127 citations
,
December 2007 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
103 citations
,
March 2011 in “PLoS Biology” Birds can lose neck feathers due to a genetic change that increases a gene's activity, helping them adapt to heat.
91 citations
,
March 2011 in “Stem Cell Reviews and Reports” Human epidermal neural crest stem cells can become bone and skin pigment cells, making them useful for therapies.
81 citations
,
October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
31 citations
,
May 2008 in “Drug Discovery Today: Disease Mechanisms” Different hair growth problems are caused by genetic issues or changes in hair growth cycles, and new treatments are being developed.
29 citations
,
January 2013 in “International Journal of Medical Sciences” Wnt10b helps hair follicle cells mature and produce pigment.
25 citations
,
April 1949 in “The journal of experimental zoology” Testosterone applied to rabbit skin increases skin cell growth and changes skin structure.
20 citations
,
September 2021 in “Nature communications” Cat color patterns are determined early in development by gene expression and epidermal changes, with the Dickkopf 4 gene playing a crucial role.
8 citations
,
January 2017 in “Stem Cells International” A protein called sFRP4 from skin cells stops the development of pigment-producing cells in hair.
7 citations
,
May 2005 in “Experimental Dermatology” Two mouse mutations cause similar hair loss despite different skin changes.
4 citations
,
August 2023 in “Nature Communications” Mouse zigzag hair bends form due to a 3-day cycle of changes in hair progenitors and their environment.