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This study observed that vitamin D receptor knockout mice exhibit impaired epidermal differentiation and progressive hair loss, suggesting the importance of the vitamin D receptor in normal skin and hair follicle development.

The document describes how to tell different types of non-scarring hair loss apart by looking at hair and scalp tissue under a microscope.

This review examines apoptotic and anti-apoptotic mechanisms in skin homeostasis and related diseases but presents no new research findings.

This study reports that overexpression of activin in transgenic mice enhances granulation tissue formation during wound healing, highlighting a novel role for activin in cutaneous repair processes.

This study found that mutations in the hairless gene in mice disrupt hair follicle integrity during catagen, leading to baldness due to disintegrating epithelial structures and loss of normal dermal papilla.

This study found that activin affects both stromal cells and keratinocytes in skin morphogenesis and repair, with dose-dependent effects on keratinocytes demonstrated through transgenic mouse models.

This consensus document provides foundational position statements for dermatologic ultrasound but reports no clinical results; it aims to guide future evidence-based recommendations and guidelines.

In animal models, this study reported that a wound dressing combining quaternized chitin and silk fibroin significantly enhanced vascular reconstruction and hair follicle regeneration, approaching normal tissue levels.

This study reports that C3H/HeJ mice and DEBR rats serve as effective models for screening potential treatments for human alopecia areata, despite certain challenges in predictability and cost.

This study found that permanent alopecia can occur after certain chemotherapy treatments and presents as nonscarring hair loss similar to androgenetic alopecia, with specific histological features that could be misdiagnosed without proper clinicopathological correlation.

This study found that the vitamin D receptor is crucial for initiating the postnatal hair follicular cycle in mice, preventing alopecia associated with its inactivation.

This review provides a synopsis of 53 cases of temporal triangular alopecia, noting its frequent detection in early childhood and potential association with congenital diseases, but it reports no new clinical findings.

This study found that mice lacking the Vitamin D receptor showed disrupted hair follicle cycling, which was partially restored with hedgehog signaling pathway activation, suggesting a role for this pathway in follicle regulation independent of vitamin D.

This review discusses dermal white adipose tissue's roles in skin immunity, highlighting its antimicrobial function and interactions with other immune cells, but reports no new clinical results.

This study reports that in systemic sclerosis, CD34+ dermal fibroblasts transition to CD34−, podoplanin+, and CD90+ fibroblasts across the dermis, suggesting a role in unchecked fibrosis.

This study found that Insig deficiency in the skin of mice causes cholesterol precursors to accumulate, leading to defective hair development and skin abnormalities, which were alleviated by simvastatin treatment.

This article reviews fetal scalp hair formation and related disorders but reports no new research results.

Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.

This study found that intra-operative platelet-rich plasma therapy may enhance hair regrowth, increase graft density, and activate dormant follicles more effectively than normal saline in follicular unit extraction hair transplant patients.

In this study, old age was concluded not to be a significant cause of hair loss, with most cases in the elderly appearing to be androgen-driven.

In this study, certain trichoscopic features were found to be sensitive and specific for diagnosing primary cicatricial alopecias and its subtypes using dermatoscopy.

In this study, epidermal Notch activation increased jagged 1 expression, leading to skin changes like thickening and blistering, with these effects inhibited when jagged 1 was absent.

This study found that collagen VI influences hair follicle growth and wound-induced regrowth by activating the Wnt/β-catenin signaling pathway in mice, suggesting potential therapeutic targets for hair loss.

This paper discusses hormonal therapy options for women with severe acne, focusing on treatment for cases that do not respond to conventional methods, but it reports no new clinical findings.

Most hair loss in children is caused by a few common conditions, and it's important to diagnose these properly and support the child's mental health.

In this study, silencing P-cadherin in human scalp hair follicles reduced melanogenesis and associated protein expression, suggesting P-cadherin is crucial for normal hair pigmentation via GSK3β-mediated Wnt signaling.

This study describes patients with moderate to severe scarring alopecia of the scalp margin and suggests that traction is not the sole cause for this condition, as half of the patients had no history of harsh hairstyling practices.

This review discusses the identification and roles of different epidermal stem cell types in skin homeostasis and repair, and reports no new experimental findings.

In this study, deleting the gene Mettl3 in mouse epidermal progenitors resulted in impaired epithelial development and self-renewal, highlighting m⁶A's crucial role in regulating chromatin modifiers and maintaining normal epithelial tissue function.

This study shows that multiphoton microscopy can non-invasively distinguish between scarring and non-scarring alopecia by identifying certain morphological features, but further research is needed to confirm its clinical utility.