128 citations
,
March 2006 in “American Journal of Pathology” Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.
127 citations
,
December 2007 in “Journal of Investigative Dermatology” Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.
103 citations
,
June 2007 in “Endocrinology and Metabolism Clinics of North America” Male pattern hair loss is genetic and influenced by hormones, with treatments like minoxidil and surgery available.
87 citations
,
May 2018 in “Scientific Reports” Higher free testosterone levels in men are linked to a stronger immune response, not weaker.
81 citations
,
October 2014 in “The journal of investigative dermatology/Journal of investigative dermatology” Certain genes control the color of human hair by affecting pigment production.
70 citations
,
January 2015 in “Journal of Clinical and Diagnostic Research” Hair loss from Telogen Effluvium usually gets better within 6 months after addressing the cause.
66 citations
,
September 2005 in “Photochemical & photobiological sciences” We don't fully understand how sunlight damages different types of hair.
59 citations
,
February 2021 in “BMJ” High doses of cyproterone acetate increase the risk of brain tumors in women, but the risk decreases after stopping the medication.
46 citations
,
March 2019 in “Journal of Pineal Research” Melatonin improves cashmere goat hair growth and quality by increasing antioxidants and reducing cell death.
41 citations
,
July 2015 in “Current Drug Discovery Technologies” Some plants may help with hair growth and have fewer side effects than synthetic drugs, but more research is needed to confirm their effectiveness.
40 citations
,
March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
30 citations
,
March 2015 in “PLoS ONE” Thyroxine can adjust the body's peripheral clock, potentially helping treat clock-related diseases.
29 citations
,
January 2016 in “CNS drugs” Teriflunomide is effective and generally safe for treating relapsing-remitting multiple sclerosis.
26 citations
,
August 2018 in “American Journal of Clinical Dermatology” Hair loss in cancer patients can be related to the cancer itself, treatment, or other conditions, and understanding it is important for diagnosis and patient care.
22 citations
,
February 2002 in “Journal of theoretical biology” The model showed that randomness accurately describes individual hair growth cycles and that synchronization can cause large fluctuations not seen in humans.
21 citations
,
January 2020 in “General and Comparative Endocrinology” Lack or blocking of SRD5a, a key component in hormone creation, can lead to conditions like pseudohermaphrodism and affect hair growth, bone mass, muscle strength, and reproductive health. More research is needed on its regulation from fertilization to adulthood.
19 citations
,
April 2014 in “Hormones” Hormones and genetics play key roles in male and female baldness, which can affect mental health and may be linked to other health issues.
19 citations
,
August 1993 in “Journal of Cutaneous Pathology” Alopecia causes smaller hair follicles and affects growth-related structures.
13 citations
,
December 2018 in “Development, Growth & Differentiation” Sex hormones, especially estradiol, can change chicken feather shapes and colors.
12 citations
,
December 2017 in “Scientific reports” The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
12 citations
,
August 2016 in “Current opinion in genetics & development” Organs like hair follicles can renew themselves in complex ways, adapting to different needs and environments.
10 citations
,
June 2021 in “Primates” Wild geladas in crop areas show less grooming and aggression.
7 citations
,
March 2018 in “Asian-Australasian journal of animal sciences” OCIAD2 and DCN genes affect hair growth in goats by having opposite effects on a growth signaling pathway and inhibiting each other.
7 citations
,
March 2016 in “Journal of Cosmetic and Laser Therapy” Home-use lasers and IPL devices are unlikely to directly cause paradoxical hair growth; it may be linked to inflammation or hormonal issues.
5 citations
,
June 2021 in “Pharmacological Reports” Vitamin D may help reduce antibody levels in men with autoimmune thyroiditis and early-onset androgenic alopecia, but has no significant impact on thyroid function.
2 citations
,
May 2021 in “Scientific Reports” Stress is likely causing hair loss in Formosan macaques.
1 citations
,
December 2024 in “Scientific Data” Researchers identified key molecular changes in goat hair follicles that could improve cashmere production.
June 2026 in “Research Square” Vitamin D may help with certain types of hair loss in women.
Testosterone therapy can safely and effectively treat symptoms like low libido and fatigue in women, especially after menopause.
December 2025 in “Al-Iraqia Medical College Journal” Virus infection risk is linked to heat tolerance and size, but decreases with high humidity and mutation rate.