September 2016 in “Journal of Dermatological Science” A gene mutation worsens skin irritation in mice due to a lack of certain fats.
13 citations,
November 2013 in “Journal of Endocrinology/Journal of endocrinology” Vitamin D receptor helps control hair growth genes in skin cells.
14 citations,
April 2013 in “Journal of dermatological science” Hairless protein reduces Msx2 gene activity, affecting hair follicle development.
126 citations,
October 1998 in “Experimental Dermatology” The document discussed the hairless (hr) gene in laboratory rodents and humans, highlighting its role in skin physiology and hair follicle biology. Although hairless and rhino mouse mutants were extensively used to study skin-related topics, the primary cellular defect of hairlessness was often overlooked. The identification of the human homolog of the hr gene on Chromosome 8p12 linked it to a congenital hair disorder in humans, similar to hairless mice. Mutations in the hr gene in mice served as models for understanding its function and the pathophysiology of related human disorders. The document reviewed the structure, expression patterns, and mutations of the hr gene, as well as associated pathologies, reproductive and immunological defects, and susceptibility to dioxin toxicity. It speculated on the potential functions of the hr gene product in skin and hair follicle biology.
181 citations,
January 2009 in “Nature Genetics” Certain mutations in a hair growth-related gene cause a type of genetic hair loss.
137 citations,
September 2005 in “Proceedings of the National Academy of Sciences of the United States of America” The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.
81 citations,
January 2006 in “Journal of cellular physiology” Mice without the vitamin D receptor gene lose hair due to disrupted hair follicle cycles.
42 citations,
July 2007 in “Journal of Biological Chemistry” Most Hairless gene mutations reduce its ability to work with the Vitamin D Receptor, which might explain a certain type of hair loss.
41 citations,
November 2011 in “The Journal of Dermatology” Some hair loss disorders are caused by genetic mutations affecting hair growth.
38 citations,
June 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.
26 citations,
December 2011 in “Journal of Investigative Dermatology” New gene identification techniques have improved the understanding and classification of inherited hair disorders.
11 citations,
September 2010 in “American Journal of Medical Genetics - Part A” A Turkish family with sparse hair and eyebrow loss has a mutation in the U2HR gene linked to Marie Unna hereditary hypotrichosis.
11 citations,
January 2015 in “Journal of cellular physiology” HR protein causes abnormal hair cycles by increasing Tgf-β2 and reducing miR-31.
10 citations,
February 2008 in “Photochemistry and photobiology” Vitamin D receptor can control the hairless gene linked to hair loss even without vitamin D.
6 citations,
July 2017 in “Biochemical and Biophysical Research Communications” The Hairless gene is crucial for hair cell development, affecting whether skin cells become hair or skin and oil gland cells.
3 citations,
May 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” The unique coat of lykoi cats is likely caused by new variants in the Hairless gene.
1 citations,
February 2013 in “Clinical pediatrics” The baby’s hair loss was due to a rare genetic condition, not treatable by usual methods.
September 2023 in “International journal of science and healthcare research” Genetic testing is crucial for diagnosing congenital atrichia, a rare condition causing irreversible hair loss.
April 2020 in “International journal of research in dermatology” An 8-year-old girl has a rare, irreversible hair loss condition caused by a genetic mutation.
February 2023 in “Cosmoderma” An infant with complete hair loss was diagnosed with a genetic disorder affecting hair growth.
January 2006 in “Advances in developmental biology” The Hairless gene is crucial for healthy skin and hair growth.
74 citations,
September 2006 in “Cell Cycle” The HR protein's role as a repressor is essential for controlling hair growth.
62 citations,
January 2009 in “Biochemistry” Vitamin D receptor binds similarly to natural and synthetic ligands, affecting gene regulation.
19 citations,
November 1993 in “Mammalian Genome” A gene mutation in mice causes permanent hair loss and skin issues.
8 citations,
April 2016 in “Experimental dermatology” B6.Cg-Tyr c−2J Hr hr /J mice have a stronger delayed sunburn reaction and are good for UV research.
78 citations,
November 2005 in “Endocrinology” Hairless protein can block vitamin D activation in skin cells.
8 citations,
January 2009 in “Journal of pediatric endocrinology & metabolism/Journal of pediatric endocrinology and metabolism” A specific thyroid hormone resistance mutation may be linked to different types of hair loss.
30 citations,
January 2009 in “Nuclear Receptor Signaling” Hairless protein is crucial for healthy skin and hair, and its malfunction can cause hair loss.
271 citations,
September 2008 in “Nutrition reviews” Vitamin D receptor interacts with certain dietary components to help prevent diseases and regulate hair growth.
26 citations,
October 2002 in “Journal of Investigative Dermatology” The study identified a novel missense mutation in the hairless (hr) gene, specifically a G to A transition at cDNA position 3034, resulting in a D1012N substitution, linked to congenital atrichia in a 17-year-old female with alopecia universalis congenita. This mutation was homozygous in the patient, heterozygous in her mother, and absent in her healthy sister, and was not found in 326 chromosomes from unrelated healthy individuals, indicating it was not a common polymorphism. The conserved nature of the D1012 residue across species suggested its functional importance, potentially disrupting the interaction between the hairless protein and the thyroid hormone receptor, contributing to hair loss. The study also noted a higher incidence of hr mutations in populations with high consanguinity rates and highlighted the variability in clinical presentation, as the patient did not exhibit some typical features of AUC. The research underscored the complexity of the hairless gene's role in hair loss disorders and the need for further studies to understand the variable phenotypic expressions of these mutations.