33 citations
,
January 2000 in “Acta Oto-Laryngologica” Epidermal growth factor increases extra hair cells in newborn rat ears.
October 2013 in “International Journal of Pediatric Endocrinology/International journal of pediatric endocrinology” A boy with early puberty and laughing seizures was treated, stopping seizures and slowing puberty.
521 citations
,
January 1954 in “Physiological Reviews” Hair growth is cyclic and influenced mainly by local factors.
46 citations
,
May 1986 in “Seminars in Reproductive Medicine” Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.
March 1956 in “Institutional Repositories DataBase (IRDB)” July 2002 in “Journal of applied cosmetology” Hair growth issues can be linked to genetics, diseases, or medications, and new treatments are being developed.
February 2020 in “VSNU Open Access deal” Hair cortisol levels change with age, starting high at birth, decreasing until age 6, then rising to adult levels by age 18.
1 citations
,
January 2025 in “Poultry Science” Pekin duck skin quality improves with age, peaking at 5-6 weeks.
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.
17 citations
,
June 1997 in “Baillière's clinical obstetrics and gynaecology” Scientists now better understand how human hair growth is controlled, including the roles of specific genes and proteins.
24 citations
,
May 1951 in “Endocrinology” Adrenocorticotropic hormone inhibits growth and affects body composition in male rats.
10 citations
,
January 2009 in “Elsevier eBooks” Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.
January 2023 in “Pediatric Endocrinology Diabetes and Metabolism” Isolated pubic hair in infants is usually harmless and resolves on its own.
14 citations
,
September 2018 in “Asian-Australasian Journal of Animal Sciences” Rex rabbits' hair follicles develop dynamically in the first 8 weeks, with key genes and proteins changing over time.
10 citations
,
January 1985 in “PubMed” Low zinc levels in hair are linked to hair loss and diaper rash in infants.
2 citations
,
December 1995 in “Pediatrics” Infant hair loss is usually temporary and grows back without treatment.
13 citations
,
December 2020 in “PLoS ONE” Genetic factors influence growth and brain development in children.
5 citations
,
January 2013 in “Cells Tissues Organs” Activin B helps start and grow hair follicles in mice.
62 citations
,
July 1993 in “Journal of Investigative Dermatology” Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.
January 2012 in “대한미용학회지” Hair follicle stem cells can be cultured, but improvements are needed for longer growth.
55 citations
,
July 1997 in “Clinical Endocrinology” Growth hormone therapy boosts androgen effects on skin in men.
1 citations
,
January 1963 in “The Anatomical Record” Glyceride levels in mouse skin are higher during hair growth.
January 2026 in “Neuroscience Applied” Hair cortisol levels decrease as children age, stabilizing around age 4.
November 2025 in “OPAL (Open@LaTrobe) (La Trobe University)” Zinc supplements improve hair growth in camels and support growth and hair development in calves.
December 2025 in “Brazilian Journal of Veterinary Pathology” Two sibling goat kids were born with goiter and hair loss.
2 citations
,
September 2023 Gaining 5-10 kg during the non-growing period boosts cashmere yield and length in goats.
3 citations
,
September 2020 in “Journal of developmental and behavioral pediatrics/Journal of developmental & behavioral pediatrics” The document discusses a young boy with autism and early puberty but does not provide a conclusion on managing his behavior.
72 citations
,
January 1983 in “The Anatomical Record” Epidermal growth factor delays skin and hair development in mice.
15 citations
,
January 1999 in “Reproduction Fertility and Development” Merino sheep have fewer wool follicles at birth than before birth.
130 citations
,
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.