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This review discusses rodent models of human hair loss and highlights the potential of traditional medicinal plants as hair growth promoters, but reports no new clinical results.

This study found that in rodent diabetes models, measuring corticosterone levels in new growth hair was more sensitive to hyperglycemia-induced changes than using old hair or serum samples.

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 observed that alopecia in rhesus macaques follows a seasonal pattern, with the highest hair loss in spring, and varies with reproductive state, as pregnant females experience the most significant alopecia and lowest hair regrowth, which resumes postpartum.

This study found that social hair plucking in captive rhesus macaques is linked to alopecia and possibly relates to stress in females.

This study found that increased hair cortisol levels, indicating stress, were associated with greater hair loss in captive rhesus macaques, although the causality of this relationship remains unclear.

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 chapter reviews various in vitro and laboratory animal models for studying potential therapies for alopecia and reports no new results.

This study found that a thyroid hormone receptor ẞ subtype-selective thyromimetic was effective in promoting hair growth in mouse and monkey models when applied topically.

In this study, researchers used a murine model of irritant contact dermatitis to reveal that hair follicle regions serve as key sites for neutrophil transepidermal migration, which requires MMP-9 expression stimulated by dermal monocytes.

This study found that latanoprost induces significant growth and pigmentation of lashes and ancillary hairs, with effects mirroring both brief and chronic treatments observed in patients and animal models.

This study found that minoxidil may protect against chemotherapy-induced peripheral neuropathy and potentially support hair recovery and tumor suppression in mouse models.

This study suggests that skin sections from 4-week-old C3H mice could serve as an in vitro model for human androgenic alopecia, as minoxidil partially reverses suppressed hair follicle elongation.

This study found that prolonged administration of DHEA improved long-term memory and brain activity balance in old rhesus macaques, with effects like increased motor activity and restored hair lasting a year.

This study found that hydroxysafflor yellow A-rich Carthamus tinctorius extract promoted hair growth and gene expression linked to hair proliferation in both cell cultures and mouse models.

This article reviews the interaction between sex hormone pathways and morphogenesis-related signaling in epithelial organ development, using a chicken model to propose testable hypotheses, but reports no new clinical results.

This study describes a novel hairless mutant rat strain, F344-Hr(krh), developed via ENU mutagenesis, which provides a model for skin disease and potentially focal glomerulosclerosis due to specific genetic mutations.

This review discusses the roles of hair follicles and sebaceous glands in percutaneous transport and reports no new results, noting a lack of adequate models and methodologies.

In this study, iNKT10 cells were found to play a significant role in preventing and treating alopecia areata in a humanized mouse model, suggesting these cells could have potential in managing related autoimmune disorders.

This study found that Cacumen platycladi extract significantly promoted hair growth and reduced dihydrotestosterone levels by inhibiting 5α-reductase activity in an androgen-sensitive mouse model.

This study observed that a topical liposome formulation of a 5‐α‐reductase inhibitor effectively reduced the size of treated sebaceous glands and induced apoptosis in a hamster model, suggesting potential benefits for acne treatment.

In a mouse model, this study found that exposure to PM2.5 leads to significant postpartum hair loss, apparent via morphological changes and elevated markers of inflammation, apoptosis, and fibrosis, potentially exacerbated by changes in hormone receptors and stem cell populations.

TGF-β1 from dermal papilla cells suppresses hair growth, and targeting it may help treat androgenetic alopecia.

In this study, researchers found no hypertrophy in axillary sweat glands of hyperhidrotic patients, with eccrine gland clear cells being the primary site of fluid transport and no evidence of apoeccrine glands.

This review discusses current and emerging drug therapies for treating androgenetic alopecia and alopecia areata, and reports no clinical results; it highlights a need for improved and novel treatments.

In this animal study, topical minoxidil shortened the telogen phase of hair growth cycles in rats, suggesting it may stimulate certain follicles to progress more rapidly to anagen.

This study reports that a 14-year-old female rhesus monkey with alopecia universalis was found to have a T-cell-mediated autoimmune disease similar to human alopecia areata universalis.

In this study, overexpression of miR-29 in mice led to aging-related phenotypes and early lethality, demonstrating its significant role in driving aging processes.

In this study, daily topical minoxidil treatment in neonatal hairless pups led to increased hair growth and the development of hair follicles in the treated areas.

This article outlines methods to study the skin and its molecular traits, focusing on interpretation and techniques applicable to mouse models, including diverse assays and approaches like electron microscopy and large-scale lipid analyses.