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This review discusses how macro-environmental factors such as intradermal adipose tissue and sex hormones influence hair and feather stem cell niches, suggesting environmental targets for regenerative medicine, but reports no new clinical results.

Dermal exosomes with miR-218-5p boost hair growth by controlling β-catenin signaling.

This review indicates that most studies reported positive effects of platelet-rich plasma injections for treating androgenic alopecia, with no major side effects, suggesting it may be a safe alternative to Minoxidil and Finasteride.

This review discusses the biology of hair follicle stem cells and highlights their potential for applications in regenerative medicine, drug, and gene delivery, but reports no new clinical results.

This study found that biallelic mutations in the TTC7A gene affect lymphocyte and gut epithelial cell function, thereby contributing to the development of inflammatory bowel disease in patients.

This study found that light stimulation of intrinsically photosensitive retinal ganglion cells in the eyes can activate hair follicle stem cells through a neural circuit involving the sympathetic nervous system.

This review discusses the progress and challenges in delivering CRISPR/Cas9 systems for in vivo genome editing, highlighting current methods and opportunities for future therapeutic applications.

This study suggests that CD8+ cytotoxic T lymphocytes play a crucial role in the development of alopecia areata, based on observations in rodent models that mimic human autoimmune disease.

This article discusses the foundational concepts of nanotechnology and its contributions to dermatology and medicine, but does not present new research findings.

This study observed that in aged mouse skin, there was an increase in IL-17-expressing T helper cells, γδ T cells, and innate lymphoid cells, and blocking IL-17 signaling reduced skin inflammation and delayed age-related changes, suggesting it as a potential target to mitigate skin aging.

This review discusses the complex causes and treatment challenges of chronic inflammatory skin diseases, emphasizing the need for biomarkers to predict treatment responses; it reports no new clinical results.

This review discusses the multiple layers of environmental controls on hair stem cell homeostasis and suggests that targeting these layers could offer safer regenerative medicine therapies without directly using stem cells.

Graft-versus-host disease is a complication where donor immune cells attack the recipient's body, often affecting the skin, liver, and gastrointestinal tract.

This study concluded that 5α-reductase inhibitors were linked to increased sexual dysfunction in men with benign prostatic hyperplasia, but not in men with androgenetic alopecia.

Skin stem cells maintain and repair the outer layer of skin, with some types being essential for healing wounds.

This article reviews methods to enhance epithelial–mesenchymal interactions for hair follicle bioengineering but does not present new experimental results; it emphasizes optimizing combinations for successful regeneration.

This review highlights the challenges in treating alopecia areata, noting that current therapies often lead to relapse and have uncertain long-term effectiveness; it also points to potential future treatments such as JAK-STAT inhibitors and PRP.

This article discusses the role of neurohormones and neuropeptides in hair follicle pigmentation and outlines promising neuroendocrinological strategies to address greying and damage, but reports no new clinical results.

Research on epidermal stem cells has advanced significantly, showing promise for improved clinical therapies.

This review discusses treatments for polycystic ovary syndrome, including lifestyle changes, oral contraceptives, and various medications, and reports no new clinical findings; the authors highlight the potential of statins and inositol for managing symptoms.

The document explains different types of hair loss, their causes, and treatments, and suggests future research areas.

In this study, tofacitinib treatment was associated with significant hair regrowth in two patients with alopecia universalis over eight months, with minimal adverse effects reported.

This study measured the lengths and depths of different portions of occipital scalp hair follicles and suggested cutting below 1 mm for hair regeneration procedures to avoid damaging the bulge zone.

Finasteride increases hair density in female androgenetic alopecia, but individual results may vary.

This study found that longer exposure to 5α-reductase inhibitors significantly increased the risk of persistent erectile dysfunction, especially in younger men exposed to finasteride.

This study found that after injury, the bone marrow microenvironment's increased Wnt10b expression supports hematopoietic stem cell regeneration by enhancing Wnt signaling, revealing a vital interaction during recovery.

This review explores the diverse roles and heterogeneity of fibroblasts across different organs, highlighting their potential involvement in both normal tissue functioning and fibrotic diseases, but reports no new experimental results.

This article reviews emerging treatments for androgenetic alopecia, including topical 5-alpha-reductase inhibitors and prostaglandin modulators, but reports no clinical results and calls for further efficacy evidence, especially for PRP.

This study identified a novel G207E STING mutation associated with severe inflammatory symptoms and suggested that common polymorphisms in TMEM173 and IFIH1 may modify the phenotype in affected individuals.

This study found that self-noncoding dsRNA activates TLR3 to stimulate intrinsic retinoic acid synthesis, promoting new hair follicle formation in wounded mice and showing similar gene expression changes in humans treated with rejuvenation lasers.