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February 2017 in “Clinical and Experimental Dermatology” Icariin helps mouse hair grow by boosting a growth factor in skin cells.
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August 2007 in “Journal of Investigative Dermatology” Mouse hair can regrow in a special lab setup without serum.
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July 2001 in “APMIS. Acta pathologica, microbiologica et immunologica Scandinavica./APMIS” Estrogens are key for bone growth spurts in both boys and girls and affect growth into adulthood.
January 2011 in “Bradford Scholars (University of Bradford)” Testosterone stimulates growth in intermediate hair follicles, but this can be blocked by cyproterone acetate.
July 2001 in “Pediatrics in review” The girl's increased hair growth and other symptoms were due to a hormone-secreting ovarian tumor, which was successfully treated with surgery.
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September 1958 in “Acta pathologica et microbiologica Scandinavica” Certain treatments can speed up local hair growth in mice but don't change the overall hair growth pattern.
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January 1994 in “Differentiation” Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.
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November 2010 in “Journal of Neuroscience” Hair clipping can trigger axon growth and changes in the skin.
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April 1964 in “PubMed” Phosphatide distribution in mouse skin remains consistent in both normal and cancerous growths.
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March 2004 in “The Journal of Urology” Hypospadiac rats showed abnormal genital development, useful for studying human hypospadias.
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January 2019 in “Endocrine journal” Dihydrotestosterone treatment can help penis growth in boys with 5α-reductase deficiency but doesn't fully normalize size after puberty.
September 2024 in “Pediatrics in Review” Parental support and gender-affirming care are crucial for the mental health of transgender adolescents.
Mouse hair follicles grow best in a special medium, especially when cut and from adult mice.
17 citations
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April 2009 in “Andrologia” A boy's early puberty caused by a testicular tumor returned to normal after surgery.
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December 2001 in “Linchuang pifuke zazhi” Some Chinese herbs can promote or inhibit hair growth.
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April 2017 in “Journal of Investigative Dermatology” CCL5 is important for the hair growth potential of human dermal papilla cells.
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August 1986 in “Archives of Pediatrics and Adolescent Medicine” Familial sexual precocity in girls may be more common than previously thought.
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August 1992 in “Development” Implanted dermal papillae can induce hair growth in rat ear wounds.
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July 1995 in “Biochemical and biophysical research communications” Male hormones promote hair cell growth by using a growth factor from nearby skin cells.
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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.
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January 2016 in “Hair therapy & transplantation” Liposomal cepharanthine lotion speeds up hair growth in men with early balding.
Hormones, especially testosterone and DHT, are key for penis development and function, and testosterone therapy may help with erectile dysfunction in those with low levels.