37 citations
,
January 1975 in “Journal of Experimental Zoology” Epilation doesn't affect rat hair growth; thyroxine speeds it up, while estradiol slows it down.
67 citations
,
July 1985 in “British journal of dermatology/British journal of dermatology, Supplement” Men's thigh hair grows longer and has a longer growth cycle than women's, but arm hair growth is similar between genders.
96 citations
,
June 2017 in “Nature Communications” A WNT10A gene mutation leads to ectodermal dysplasia by disrupting cell growth and differentiation.
7 citations
,
January 2010 in “Animal” Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.
Plant roots respond to fungus smells by possibly using certain proteins and a plant hormone to change root growth, but more research is needed.
48 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
98 citations
,
June 2001 in “Journal of biological chemistry/The Journal of biological chemistry” A cluster of sulfur-rich hair protein genes was found on chromosome 17.
4 citations
,
December 1962 in “European journal of endocrinology” Alloxan diabetes, methylthiouracil, cortisone, and adrenaline affect how white mice hair follicles use glucose and cystine and their cell division.
1 citations
,
April 2015 in “Current problems in dermatology” The document concludes that the trichogram is a useful tool for diagnosing hair loss and suggests semi-organ cultures for practical trichological research.
9 citations
,
August 2007 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Sheep wool follicles absorb different amino acids at various rates and locations, which could affect wool growth based on diet and genetics.
40 citations
,
July 2015 in “Journal of Cellular Biochemistry” Cysteine helps maintain keratin production in skin cells even when iron is low.
28 citations
,
October 2011 in “International Journal of Molecular Medicine” Adenosine helps hair grow longer and stronger by boosting certain growth factors and signaling pathways.
40 citations
,
November 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” S100A3 protein is crucial for hair shaft formation in mice.
62 citations
,
January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.
18 citations
,
January 1978 in “Advances in experimental medicine and biology” Hair cystine levels may indicate protein malnutrition, but more research is needed.
51 citations
,
January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
11 citations
,
July 2014 in “Gene” The S250C variant in a gene may cause autoimmunity and immunodeficiency by impairing protein function.
23 citations
,
July 1989 in “Postgraduate medical journal” Spironolactone did not make hair thinner in women with excess hair growth.
166 citations
,
November 1990 in “Journal of Investigative Dermatology” Minoxidil sulfate stimulates hair growth.
25 citations
,
July 1994 in “Archives of Dermatology” A man's skin condition, pemphigus vulgaris, came back after he was treated with interleukin 2 for cancer.
7 citations
,
November 2010 in “Genesis” Mouse Scube3 affects teeth, tongue, vibrissae, and eye development, but not facial structure or limb growth.
81 citations
,
February 1997 in “Journal of Investigative Dermatology” Minoxidil boosts hair growth by activating PGHS-1.
51 citations
,
May 2013 in “The Journal of Steroid Biochemistry and Molecular Biology” Certain drugs that block specific enzymes can help treat prostate diseases.
5 citations
,
May 1983 in “Australian journal of biological sciences” Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.
121 citations
,
March 1989 in “Journal of Investigative Dermatology” Minoxidil can help grow hair in mice by making cells grow and improving hair quality. More research needed.
32 citations
,
February 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.
90 citations
,
January 1979 in “International review of cytology” Wool follicles are complex, involving interactions between different cell types and structures.
26 citations
,
March 1986 in “Clinical and Experimental Dermatology” Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.
14 citations
,
April 2000 in “Animal Science/Animal science” Nutrients like vitamins, copper, zinc, and amino acids are crucial for healthy hair and wool growth.
9 citations
,
February 1981 in “Australian journal of biological sciences” Lambs fed a liquid diet showed abnormal wool and skin, which improved with more B-vitamins, suggesting a link to B-vitamin deficiency.