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This review found that hair loss is common in women after bariatric surgery, linked to nutritional deficiencies and rapid weight loss, highlighting the need for further research and nutrient monitoring.

In this study using C3H/HeJ mice, a single subcutaneous injection of the fusion protein PTH-CBD increased anagen hair follicle counts and promoted hair regrowth comparably to daily oral ruxolitinib, potentially by enhancing beta-catenin production and stimulating anagen transition.

In this study, a single subcutaneous dose of PTH-CBD showed similar hair regrowth to daily oral ruxolitinib in mice with alopecia, possibly through increased beta-catenin and anagen transition stimulation.

This study identified that disrupting Mef2c in dermal papilla cells delays the early stages of hair cycle catagen in mice, revealing potential interactions with Sox18 in regulating hair growth.

In ex vivo organ culture of human scalp hair follicles, this study found that IL-9 signaling inhibits hair growth, reduces progenitor cell generation, and disrupts immune privilege.

This study found that the natural estrogen Estetrol (E4) may promote hair follicle growth and prevent miniaturization, suggesting its potential as a treatment for hair loss disorders.

In this study, a serum containing Silybum marianum extract, Manganese PCA, and Lespedeza capitata extract improved hair growth and prolonged the anagen phase in a human scalp skin model.

This study suggests that interleukin-15 plays a complex role in alopecia areata, potentially contributing to immune infiltration while also protecting against hair follicle immune privilege collapse and promoting hair growth.

This study suggests that combining Silybum marianum extract, Manganese PCA, and Lespedeza capitata extract may help improve hair growth and anchorage by targeting specific signaling pathways in human dermal papilla cells.

This study highlights three cases of liver toxicity linked to the use of the green tea catechin-containing supplement Inneov masa capilar® and underscores the need for careful monitoring of such products.

This study found that blocking apoptosis during the catagen phase in mice disrupts hair follicle stem cell niche architecture, delaying subsequent hair regeneration cycles.

In this study, researchers found that the human hair follicle microbiota vary by anatomical compartment and donor age, with specific microbes like S. epidermidis potentially influencing hair follicle functions, which suggests new avenues for therapeutic targeting.

This study found that skin fibroblasts in mice arise from two distinct lineages which contribute differently to dermal structure and repair, impacting hair follicle formation during wound healing.

This review discusses the brain-skin connection, the skin's role in stress response, and highlights unmet challenges in understanding stress-induced skin inflammation but reports no new experimental findings.

In this study, researchers found that substance P triggered premature catagen development and immune changes in human scalp hair follicles, providing a possible biological link between stress and hair loss conditions like telogen effluvium and alopecia areata.

This review explores the complex endocrine functions of human skin and its role as a peripheral endocrine organ, but reports no new clinical results.

This study suggests that nerve growth factor plays a crucial role in the stress-induced termination of hair growth in mice, and its antagonism might offer a therapeutic approach to mitigate stress-related hair loss.

This study found that inhibiting TGF-β receptors in adult dermal fibroblasts restored their function and increased resistance to Staphylococcus aureus infection by enhancing their adipogenic and antimicrobial capabilities.

This study found that premature hair loss due to stress does not occur in NK-1 receptor knockout or mast cell deficient mice, suggesting a key role for neurokinin substance P and mast cell interaction in stress-related hair follicle changes.

In this study, researchers found that certain cytokines can significantly down-regulate PDGF expression in dermal papilla cells and follicular keratinocytes, indicating a potential link between PDGF signaling and catagen induction.

This article reviews the aging process of sebaceous glands, highlighting the role of intrinsic and extrinsic factors on their degradation and reporting no new clinical findings.

This study found that a low dose of flutamide, both alone and combined with an oral contraceptive, effectively reduced hirsutism in women, with the combination showing more lasting effects post-treatment.

In this study on a murine model, researchers observed that a 5% minoxidil solution reduced stress-induced changes in hair growth, suggesting its potential for managing stress-related hair loss in humans.

This article reviews common causes of hair loss, noting that a well-directed history and examination are often sufficient for diagnosis, and reports no new clinical findings.

This study found that human dermal γδT-cells can act as stress sentinels and potentially trigger autoimmune responses toward stressed hair follicles, resembling features of alopecia areata.

This study identified overexpression of certain immune-related genes and underexpression of genes in specific signaling pathways in premature androgenetic alopecia, suggesting potential new therapeutic targets.

This study found that ornithine decarboxylase expression is linked to cell proliferation and differentiation in hair follicle development and growth.

This study observed that cathepsin L and transglutaminase 3 colocalize in the human hair bulb and nail matrix, suggesting their involvement in terminal differentiation within these epidermal appendages.

This study analyzed gene expression changes during the autumn coat color change in mountain hares and found conserved gene regulation with snowshoe hares, highlighting its role in seasonal camouflage adaptation.

This review discusses human hair follicle development and highlights the potential of creating human in vitro models and skin substitutes with hair follicles, reporting no new clinical results.