31 citations
,
September 2013 in “Stem Cells” Smad1 and Smad5 are essential for hair follicle development and stem cell sleepiness.
28 citations
,
July 2008 in “Developmental Biology” Smad4 is important for healthy hair follicles because it helps produce a protein needed for hair to stick together and grow.
25 citations
,
September 2018 in “Molecular Biology of the Cell” Blocking Wnt/β-catenin signaling with EGF receptor is necessary for proper hair growth.
16 citations
,
December 2019 in “Animals” Overexpressing Tβ4 in goats' hair follicles increases cashmere production and hair follicle growth.
15 citations
,
December 2014 in “PLoS ONE” A mutation in the iRhom2 gene causes hairless mice due to abnormal hair follicle development.
13 citations
,
March 2020 in “Frontiers in cell and developmental biology” A substance called TCQA could potentially darken hair by activating certain genes and increasing melanin.
4 citations
,
March 2012 in “European journal of wildlife research” Wire brush snares are best for collecting Eurasian Lynx hair for DNA analysis.
Wildebeest stress and hormone levels are influenced by food availability, human presence, and reproductive cycles.
July 2009 in “International Society of Hair Restoration Surgery” Dividing hair grafts may make hair look fuller, but more research is needed.
3 citations
,
July 2012 in “Sokoto Journal of Veterinary Sciences” As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.
35 citations
,
June 2017 in “Pharmaceutical research” Researchers developed a model that shows hair follicles increase skin absorption of caffeine by 20%.
20 citations
,
December 2017 in “Journal of Investigative Dermatology Symposium Proceedings” Researchers created a fast, accurate computer program to measure hair loss in alopecia areata patients.
1 citations
,
January 2006 in “Elsevier eBooks” Cats lose fur due to various reasons, including allergies, infections, genetics, hormones, diet, cancer, stress, and some conditions are treatable while others are not.
52 citations
,
October 1999 in “Developmental Dynamics” Mutations in the hairless gene in mice affect its expression and lead to a range of developmental issues in multiple tissues.
April 2019 in “Journal of Investigative Dermatology” Women with scarring alopecia are less likely to have used hormone replacement therapy or oral contraceptives compared to those with female pattern hair loss.
September 2016 in “Elsevier eBooks” Different types of hair loss in dogs and cats have various causes and treatments, with outcomes ranging from good to uncertain.
5 citations
,
January 1984 in “Journal of psychosomatic obstetrics and gynecology/Journal of psychosomatic obstetrics and gynaecology” The treatment reduced hair growth and testosterone in women with excess hair and had some effects on stress responses.
July 2023 in “Clinical, cosmetic and investigational dermatology” Plica neuropathica can be a sign of schizophrenia and improves with antipsychotic treatment.
98 citations
,
December 2008 in “Journal of Investigative Dermatology” Prolactin affects hair growth and skin conditions, and could be a target for new skin disease treatments.
10 citations
,
May 2018 in “Forensic Science International” Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.
February 2026 in “Frontiers in Public Health” Lifestyle changes can help manage androgenetic alopecia.
137 citations
,
March 2006 in “Cns Drug Reviews” Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.
2 citations
,
January 2020 in “Journal of Experimental Social Psychology” Baldness and shaved heads change how traits are seen but don't really affect leader preferences.
1 citations
,
January 2017 in “Evolutionary studies” Different human traits like skin color and hair type vary between populations due to genetic adaptations to the environment.
April 2026 in “Experimental & Molecular Medicine” Mouse and human skin development share similar fibroblast timelines.
January 2020 in “Der Pharmacia Lettre” Nanoparticle-based herbal remedies could be promising for treating hair loss with fewer side effects and lower cost, but more research is needed.
August 2014 in “Plastic Surgery” Dr. WP Unger suggested that traditional strip harvesting might be better for hair transplants than Follicular Unit Extraction due to higher hair survival rates and less risk of a patchy look at the donor site.
77 citations
,
April 2004 in “Gene expression patterns” The three estrogen receptor genes are highly expressed in zebrafish neuromasts during development.
5 citations
,
April 2021 in “Journal of Endocrinological Investigation” Higher DHT levels are linked to fewer hypogonadism symptoms in men with normal testosterone levels.
June 2023 in “Animal Bioscience” Vimentin and transthyretin proteins are linked to black coat color in sheep.