13 citations
,
April 1994 in “Journal of Investigative Dermatology” Androgen receptors found in monkey scalps, similar to humans, affect hair growth.
23 citations
,
March 2016 in “American Journal of Primatology” In female rhesus monkeys, hair gain is linked to reduced stress levels.
17 citations
,
November 2013 in “American Journal of Primatology” Different monkey species in a lab showed varying levels of hair loss due to factors like type, sex, age, season, and living conditions.
21 citations
,
October 1988 in “Clinics in Dermatology” The study used monkeys to test a hair loss treatment called minoxidil, which showed positive results.
19 citations
,
January 1997 in “Endocrinology” Testosterone can slow hair growth in adult monkeys, but a blocker called RU 58841 can counteract this and potentially help hair regrow.
10 citations
,
November 2015 in “American Journal of Primatology” Monkeys with more anxious or inhibited temperaments tend to have less hair loss.
21 citations
,
June 2016 in “Journal of Medical Primatology” Captive management practices affect hair loss and stress in rhesus monkeys, with differences between facilities.
May 2023 in “General and comparative endocrinology” Monkey hair cortisol levels are not affected by how fast their hair grows.
1 citations
,
January 1997 in “Journal of Investigative Dermatology” RU58841, an androgen receptor blocker, significantly increased hair density, thickness, and length in monkeys when applied topically daily for several months.
33 citations
,
January 2002 Latanoprost, a glaucoma drug, showed potential for promoting hair growth in bald monkeys, especially at higher doses.
August 2018 in “Archives on veterinary science and technology” Hair loss in lab macaques is not always due to neglect and has multiple causes.
189 citations
,
January 2014 in “Journal of Visualized Experiments” Hair cortisol analysis effectively measures long-term stress.
28 citations
,
May 2014 in “PubMed” Higher stress levels may be linked to hair loss in rhesus macaques.
March 1998 in “Journal of Dermatological Science” Combining RU58841 and minoxidil significantly increases hair growth.
5 citations
,
February 2011 in “Expert Opinion on Drug Discovery” We need better treatments for hair loss, and while test-tube methods are helpful, they can't fully replace animal tests for evaluating new hair growth treatments.
March 2014 in “Human Physiology” DHEA improved brain function and behavior in old monkeys and had additional health benefits.
15 citations
,
January 2020 in “ILAR Journal” Nonhuman primates are valuable in research but their natural health variations can complicate study results.
16 citations
,
April 2007 in “Journal of Medical Primatology” The monkey's hair loss was due to an autoimmune disease, not genetics.
16 citations
,
January 1995 in “Skin Pharmacology and Physiology” SEPA™ enhances the effectiveness of minoxidil in stimulating hair growth, working faster and better than Rogaine® TS, with no significant side effects.
75 citations
,
January 1995 in “American journal of primatology” Vervet monkeys show physical changes like hair loss and scrotal color changes due to stress or nutrition issues.
54 citations
,
June 1985 in “American Journal of Dermatopathology” Minoxidil helps grow longer, thicker hair in bald scalps of stumptailed macaques, and early treatment is more effective.
11 citations
,
February 2011 in “Current Zoology” About 20% of Japanese macaques had head alopecia, and stress and environment might cause hair loss.
7 citations
,
October 2015 in “American Journal of Primatology” Monkeys with hair loss during pregnancy showed higher stress hormone levels and invested differently in their offspring.
2 citations
,
May 2021 in “Scientific Reports” Stress is likely causing hair loss in Formosan macaques.
23 citations
,
January 2010 in “Journal of Medical Primatology” Hair loss in Rhesus macaques may be caused by a skin allergy-related condition.
4 citations
,
April 2016 in “American Journal of Primatology” Where a rhesus macaque used to live can affect its chances of getting alopecia later in life, and females are more likely to be affected than males.
51 citations
,
November 2005 in “Journal of Medical Primatology” Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.
18 citations
,
April 1986 in “International Journal of Cosmetic Science” Minoxidil promotes hair regrowth in early baldness stages and prevents baldness in non-bald scalps.
29 citations
,
June 2005 in “Journal of Zoo and Wildlife Medicine” Most hair loss in captive rhesus macaques is likely due to environmental and behavioral factors.
March 2024 in “Revista Ciências da Saúde CEUMA” Testosterone increases sexual behavior in female capuchin monkeys.