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This study observed that combining hair dyeing with sodium hydroxide relaxers drastically increased protein loss in Caucasian virgin dark brown hair, while ammonium thioglycolate or guanidine hydroxide relaxers caused less damage.

This investigation found that certain supplements, particularly whey protein isolate, growth hormones, and anabolic steroids, can negatively impact hair loss by affecting biochemical pathways.

This research highlights dermatologists' concerns about the widespread use of sports supplements, noting that nutritional supplements associated with muscle-building and appearance enhancement can lead to dermatological issues like acne and alopecia, while potentially containing harmful substances such as undisclosed anabolic steroids.

This study discusses zinc's vital role in skin cell growth and how its deficiency can lead to acrodermatitis enteropathica, marked by symptoms like alopecia and dermatitis. It notes that similar symptoms appear in people with certain metabolic conditions, referred to as acrodermatitis dysmetabolica.

This case study of a 2-month-old boy with maple syrup urine disease highlights the dangers of restricting branched-chain amino acid intake, as it led to acrodermatitis dysmetabolica-like skin eruptions and hair loss, later resolved with careful dietary adjustments and monitoring.

This review discusses the role of the androgen receptor in breast cancer diagnosis and treatment, and notes a lack of new research results on its therapeutic potential.

This case study reports that an infant with maple syrup urine disease developed acrodermatitis dysmetabolica due to low isoleucine levels, and increasing the isoleucine dose improved the condition.

This study identified several genes highly expressed in germ-line stem cells that are also common in hematopoietic stem cells, potentially aiding the exploration of fundamental stem cell commonalities.

This study synthesized and compared single-ion doped silicate bioactive glass nanoparticles for tissue repair, finding that BSr and BCe were most effective in accelerating wound healing and restoring vasculature, with BSr particularly reducing inflammation and BCo enhancing hair follicle regeneration but with limited biosafety window.

This review discusses how androgen excess in polycystic ovary syndrome can lead to hirsutism, seborrhea, and worsen conditions like androgenetic alopecia and acne, but includes no new research findings.

This study evaluated herbal hair care products, including oils, shampoos, and dyes, formulated with ingredients like coconut oil and neem, and found they potentially offer safe and environmentally friendly alternatives to synthetic products with nourishing and antimicrobial properties.

This study reports that a young man with severe testotoxicosis maintained spontaneous fertility despite suppressed FSH levels, underscoring the importance of high intratesticular testosterone levels for spermatogenesis.

This study shows that macrophage-induced TNF signaling can activate hair follicle stem cells and promote new hair follicle formation after wounding by regulating AKT/β-catenin pathways.

This study found that Wnt1/βcatenin signaling plays a crucial role in activating the epicardium and cardiac fibroblasts, which supports cardiac repair following acute ischemic injury.

This review discusses the unique dermatologic needs and conditions affecting women of color, noting specific skin and hair conditions but reports no clinical results.

This study found that certain dietary changes, such as a low glycemic load diet for men and specific supplements for women, may improve acne, while chocolate, whey proteins, and dairy products are linked to worsened symptoms in both genders.

This paper discusses X-linked ichthyosis and its genetic causes, focusing on biochemical pathways and their role in epidermal differentiation and barrier function, but it presents no new clinical findings.

This study identified two types of calcium in human scalp hair, with one type highly variable between individuals, potentially impacting the analysis of environmental and medical factors related to hair calcium.

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 review discusses the potential of cell-derived nanovesicles as innovative treatment strategies for hair growth and provides no new clinical results; the authors emphasize the need for further understanding of their mechanisms.

This review discusses how Western diet may contribute to acne vulgaris through insulin signaling and metabolomic changes, promoting a dietary approach for management, but reports no new experimental results.

This mini-review discusses human hair follicle development and summarizes genetic disorders linked to abnormalities in hair follicle morphogenesis, structure, or regeneration, but reports no new experimental results.

This study concluded that 5α-reductase inhibitors were associated with improved survival in men with bladder cancer, while α-blockers showed no effect.

Metformin helps manage diabetes, PCOS, and weight in kids but needs more research for long-term safety.

In this animal study, the ketogenic diet was associated with more severe biotin deficiency in biotin-deficient mice, suggesting that biotin supplementation is important when following this diet.

In this study, growing human hair follicles in a defined glycosaminoglycan hydrogel ex vivo promoted cell survival, proliferation, and activation of hair growth-related signaling pathways, suggesting GAG-based hydrogels could modulate the hair follicle growth cycle.

In this study, the aqueous extract from Phthirusa pyrifolia leaves significantly decreased testosterone levels in male Wistar rats without causing liver or kidney damage, suggesting potential effects on libido and reproduction.

This study found that Finnish men using 5-alpha-reductase inhibitors before or after bladder cancer diagnosis had improved disease-specific survival compared to non-users, suggesting potential benefits of the treatment.

This review discusses the clinical applications and adverse effects of 5-alpha reductase inhibitors for treating benign prostatic hyperplasia and androgenic alopecia, noting controversies around their implications for other diseases, without reporting new results.

This review discusses the role of biotin in metabolism and the consequences of its deficiency, reporting no new clinical results.