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This study used single-cell RNA sequencing to create a detailed atlas of human scalp hair follicles and found that early-stage hair graying involves matrix hair progenitor depletion linked to P53 pathway activation.

This study used rapid-freezing immunocytochemistry to successfully map the ultrastructural localization of hair keratins in human scalp hair, primarily finding them in macrofibrils in the cortex and endocuticle.

In this study, researchers observed that underhairs in domestic cats were the thinnest and shortest with regular scales, while guard hairs were the longest and thickest, having irregular scales.

This study found that 660 nm laser treatment and povidone iodine both eradicated Pseudomonas aeruginosa infection in mice wounds, with the laser enhancing healing, and the combination provided additive or synergistic healing benefits.

Lasers are effective for some skin conditions but can cause side effects like scarring and pigment changes; careful selection is important, and botulinum toxin type A is successful in reducing sweat in palmar hyperhidrosis.

In this case report, a 27-year-old male with chronic scalp psoriasis experienced marked clinical improvement and sustained remission for 16 months after 17 months of individualized classical homeopathic treatment, also noting enhanced quality of life and emotional well-being.

This study identified a unique transcriptional signature in occipital hair follicles that may protect them from miniaturization in androgenetic alopecia, using an animal-free model to investigate gene roles.

This article discusses the complexities of treating hair and scalp disorders in African American patients, emphasizing the importance of understanding their specific hair care practices and the unique impact on quality of life, but reports no new empirical findings.

In this study, researchers identified a novel homozygous variant in the FAM83G gene responsible for autosomal recessively inherited palmoplantar keratoderma with curly hair in a consanguineous Pakistani family, suggesting FAM83G plays a crucial role in skin and hair homeostasis.

This study employed a laser-based method to analyze how light reflection patterns vary on human hair fibers, revealing changes related to hair color and the tilt of the cuticle cells.

This study created a detailed spatial atlas of healthy human skin and basal cell carcinoma, revealing a potential hair follicle origin for basal cell carcinoma and expansion of certain mesenchymal cell populations.

Double trichophytic closure effectively repairs thin scalp scars, reducing financial burden.

This study developed a deep learning-based method that identified 3,620,516 potential drug-disease associations, suggesting a promising tool for large-scale virtual screening in drug research.

This study found that dandruff-afflicted individuals had a less integrated microbial network on the scalp and hair surface compared to healthy individuals, with more positive interactions and unstable connections.

This review discusses the side effects and diseases related to hairstyles and hair treatments among black women, highlighting the need for thorough examination by dermatologists, but reports no new clinical results.

This case report describes a woman experiencing severe hair loss due to allergic contact dermatitis from a hair dye containing PPD.

This study found that ultraviolet radiation causes significant damage to human hair follicles, including increased cell apoptosis and oxidative DNA damage, but this damage may be mitigated by topical caffeine.

In this study, researchers found that as androgenetic alopecia severity increased, the hair follicle matrix and dermal papilla's volume and cell nuclei number decreased, especially in the papilla.

This study found that daily topical application of 500 microg/ml latanoprost led to moderate to marked hair regrowth in a macaque model of androgenetic alopecia.

This study suggests that finasteride's effect on promoting hair growth in men with androgenetic alopecia may be due to its inhibition of 5aR2 localized in hair follicles.

This study developed an efficient method for converting polymeric procyanidins into high-purity oligomeric procyanidins using a semisynthetic approach combined with separation techniques.

This study found that hair from ovarian teratomas shares similar chemical composition and morphology with scalp hair, but differs in physical properties and cysteic acid bands.

This study identified a unique concentric double-layered structure in both Japanese and Caucasian SHINAYAKA hair, associated with improved flexibility and elasticity, and developed a succinic acid treatment to enhance these properties.

This study found that patients with androgenetic alopecia had thinner scalp and subcutaneous tissues, narrower and shorter hair follicles, a lower hair follicle count, and fewer color flow signals compared to healthy volunteers, as measured by 22 MHz ultrasound.

In this study, researchers developed enzymatic methods to isolate hair cuticle cells and remove the hair cuticle layer, finding that the harvested cuticle cells are thermally more stable and contain different structural proteins compared to descaled hair fibers.

Mouse tail skin has different keratinization near hair follicles and scales.

This article discusses various aspects of hair and scalp health, ancient philosophical perspectives on hair, and causes of hair disorders in children, without reporting new clinical results.

This systematic review found that estrogen deficiency in postmenopausal women leads to structural and symptomatic changes in genital and cutaneous tissues, with local estrogen therapy providing short-term benefits, while evidence for device-based treatments remains limited and requires larger trials.

This review emphasizes the importance of understanding hair follicle embryology, anatomy, and the hair cycle to effectively diagnose and treat hair disorders like alopecia.

This study found that intense pulsed light treatment primarily targets pigmented structures in hair follicles and may damage dermal papilla cells at high energy levels, but stem cells are mostly spared.