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Biotin deficiency in monkeys causes fur and skin issues, but 20 μg of biotin daily can prevent or cure it.

This study identified a compound heterozygous mutation in a hairless rhesus macaque, which was associated with skin abnormalities similar to those in hairless mice and humans with APL.

Androgen receptors found in monkey scalps, similar to humans, affect hair growth.

The researchers reported that alopecia is common in Japanese macaques, particularly adult females, and varies seasonally and between different populations, with a new scoring system proposed for monitoring.

This study found significant differences in alopecia rates among rhesus macaques based on their previous housing facilities, suggesting that factors beyond current environment may influence alopecia.

This study found that the hair cortisol measurement procedure was reliable, unaffected by the choice of tubes, and that hair cortisol concentration correlated moderately with the number of intense aggressions experienced.

This study observed significant differences in skin fungal communities between healthy and alopecic cynomolgus macaques, suggesting certain microorganisms may be associated with alopecia in these primates.

This study found that hair cortisol concentrations in rhesus macaques were not significantly correlated with hair growth rate, suggesting that cortisol-mediated inhibition of hair growth does not explain higher cortisol levels within the non-stress range.

This study found that stress is likely the main cause of symmetrical alopecia in Formosan macaques, with higher stress hormone levels observed in affected individuals.

This study observed that the development of the pars intermedia in long-tailed macaques is closely associated with changes in skin pigmentation during pre- and postnatal periods through melanocyte-stimulating hormone and ACTH activity.

In this study, the isotopic fractionation between tissues and diets of captive Japanese macaques was quantified, particularly noting hair's response to diet changes in controlled conditions, but these findings underscore the complexity of reconstructing long-term dietary history.

In this animal study, topical diazoxide treatment led to increased hair thickness and follicle growth in bald stumptailed macaques without causing notable systemic side effects.

Some human genetic markers work for genetic studies in pig-tailed and stump-tailed macaques, which can help in their conservation.

In this study, pair housing of rhesus macaques after intrafacility transfer reduced some undesirable behaviors and diarrhea compared to single housing, although no cortisol level differences were observed.

Combining RU58841 and minoxidil significantly increases hair growth.

This study demonstrated that high oral doses of finasteride caused external genital abnormalities in male rhesus monkey fetuses, but intravenous doses did not lead to abnormalities.

In this study, the combination of finasteride and minoxidil significantly increased hair growth in balding male stumptail macaques compared to each drug alone.

Finasteride increases hair growth, prolongs hair cycle, and lowers dihydrotestosterone levels.

This study observed that testosterone combined with hormonal contraceptives elevated hormones like estrone and testosterone, altered coagulation factors, and increased sexual behavior frequency in female capuchin monkeys.

This study found that female rhesus macaques who gained hair showed a significant reduction in hair cortisol concentrations, suggesting a connection between hair regrowth and stress levels.

This review discusses the suitability of stump-tailed macaques and rodent models for studying hair growth and developing treatments for androgenetic alopecia, but reports no new experimental results.

This review discusses techniques and models for assessing hair growth activity but reports no new clinical findings, emphasizing the need for standardization and improved animal models.

This study found that certain nutraceuticals did not interfere with tamoxifen's inhibition of estrogen in breast cancer cells and may enhance its effects, suggesting potential as an adjuvant therapy for hair loss in patients undergoing endocrine therapy.

In this cell-based study, researchers found that certain nutraceuticals combined with tamoxifen may influence estrogen receptor expression, potentially offering a protective effect and promoting hair growth during breast cancer therapy.

This study suggests that certain nutraceuticals may enhance the inhibitory effects of tamoxifen on estrogen in breast cancer cells and potentially offer protective benefits for hair growth in patients undergoing endocrine therapy.

This study explored the effects of various nutraceutical ingredients on breast cancer cell lines but found no conclusive information regarding their interaction with tamoxifen therapy.

The conclusion is that small hair follicles cause baldness in macaques, and treatments like antiandrogens and minoxidil can prevent hair loss and promote regrowth.

This paper discusses the lack of a genetic model for androchronogenic alopecia in rodents, noting the stumptailed macaque as a better current model due to its similarities to human male-pattern baldness; it reports no new results.