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This article reviews how photoperiod, melatonin, and prolactin influence moult timing in mammals, focusing on cashmere goats, but reports no new experimental findings.

In this study, researchers performed a genome-wide characterization of the Wnt gene family in domestic donkeys, identifying 19 genes and highlighting their evolutionary conservation among mammals, along with tissue-specific expression patterns potentially linked to reproductive regulation and tissue homeostasis.

In this mouse study, the absence of the Ascl4 gene did not affect the development of hair follicles, teeth, or mammary glands, suggesting it is non-essential for these processes.

In male mice and rats, this study found that 17α-estradiol improves metabolic health by acting through estrogen receptor α, suggesting a potential target for treating chronic diseases in male mammals.

This study confirms that zebrafish engineered with Cantú Syndrome mutations in ABCC9 and KCNJ8 genes exhibit gain-of-function characteristics in their cardiovascular KATP channels, similar to mammalian counterparts.

This study found that disrupting Sdf1-Cxcr4 signaling promoted tissue regeneration in wild-type mice, hinting at potential strategies to induce such regeneration in mammals.

This review examines how calorie restriction affects stem cell potency and tissue regeneration, indicating potential benefits for aging-related pathologies across various mammalian systems but presents no new findings.

This study found that the structural and chemical composition of human curly hair may resemble that of sheep wool, implying a shared characteristic among mammals with wavy hair.

In this study, the researchers successfully cloned and sequenced the hairless gene cDNA of Kunming mice, revealing high conservation and functional significance among various mammalian species.

This study on Dorper sheep identified important genetic factors influencing hair follicle development, finding that expression patterns and genes like DBI, FZD3, and ZDHHC21 play a crucial role in wool shedding, which could help improve understanding of mammalian skin-related traits and human hair advancement.

Terrestrial vertebrates have balanced keratin gene clusters, unlike teleost fish.

This study reports that during late embryogenesis and early postnatal development, K79-expressing keratinocytes change and die independently of sebaceous glands to form the hair follicle opening, potentially influencing conditions like ingrown hairs or acne.

This study by Pérez-Oliva et al. explored how Mahogunin Ring Finger-1 (MGRN1) affects melanocortin-1 receptor (MC1R) signaling, suggesting that MGRN1 competitively inhibits Gαs binding to MC1R, influencing pigment production.

This study found that the extraction-resistant structures in hair, feathers, and hagfish teeth are due to ε-(γ-glutamyl)lysine cross-linked proteins, emphasizing their role in maintaining the integrity of these materials.

This review explores theories on the evolution of hair from synapsid scales and glands, proposing mechanisms supported by comparative studies, but reports no new experimental findings.

This review discusses the role of the hairless protein (HR) in alopecia and cancer, noting its potential importance in cancer cell growth and survival, and reports no new experimental results.

This essay discusses the establishment, maintenance, and role of skin stem cells in tissue homeostasis, wound repair, and their relation to skin cancer, without reporting new experimental findings.

This study revealed that frizzled 3 can fully rescue polarity defects in frizzled 6-null mice, while frizzled 6 can partially rescue defects in frizzled 3-null mice, highlighting conserved signaling roles in these proteins.

This review discusses the use of zebrafish larvae as an alternative model for studying ototoxicity, facilitating large-scale screening for otoprotective compounds, but reports no new clinical results.

The document concludes that understanding hair loss and its psychological impact is crucial for physicians to provide effective counseling and treatment to patients.

This article discusses how modern lifestyle changes, such as stress and poor diet, contribute to hair loss in younger generations, with hair thinning often leading to alopecia; it emphasizes the need for hair root activation to promote hair growth and prevent loss.

This study reports that despite rescuing neurulation and skin barrier defects, Grhl3 gene overexpression in mice leads to hearing impairment, hair loss, and other developmental abnormalities, highlighting low tolerance for Grhl3 dysregulation.

Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.

This review discusses recent advances in understanding the molecular mechanisms of hair generation and regeneration, with an emphasis on androgenetic alopecia and alopecia areata, and anticipates new therapies, but reports no new results.

This review discusses the mechanisms of wound-induced hair neogenesis and its similarities with embryonic hair follicle development, but reports no new clinical results.

This review discusses the cutaneous serotoninergic/melatoninergic system's potential role in skin function and resilience against environmental and internal stresses, but does not report new experimental findings.

This study observed that northern elephant seals with skin disease had elevated pollutants like PCBs in their bodies, suggesting a potential link to the condition's unknown etiology.

This review discusses the use of hair analysis for examining stress and reproduction hormone levels in wildlife and highlights the need for more comprehensive physiological validations across species.

This study's simulations suggest that biomechanical factors, like follicle geometry and tissue stiffness, are likely significant in hair fiber protrusion, providing a framework for future experimental validation.

This study found that sustained ERK activity during tissue regeneration in spiny mice is linked to fibroblast growth factor and ErbB signaling, while inhibiting ERK shifted regeneration toward scarring.