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This study identified a cluster of genes on chromosome 17 related to hair keratin-associated proteins, including 37 genes forming seven multigene families, localized in the hair shaft's upper cortex.

This study identified 16 novel high sulfur KAP genes and two KAP pseudogenes on chromosome 21q23, showing expression in a specific region of the hair fiber cuticle.

This study found that testosterone and 5α-dihydrotestosterone induced apoptosis in dermal papilla cells from nonbalding scalp regions, suggesting a high androgen stimulus can trigger cell death related to androgenetic alopecia.

This study found that testosterone and 5α-dihydrotestosterone affect human sebocytes differently depending on the skin region, with spironolactone inhibiting their proliferation and counteracting androgen effects in facial sebocytes.

This study found that Brandt's hedgehog has the thickest skin on its back and the thinnest on the cloacal region, with sebaceous and sweat glands primarily located in the nostril area.

This review outlines the histological structures of the skin, highlighting species and regional differences in dermal absorption and obstacles encountered in toxicological assessments due to epidermal thickness variability, contact dermatitis reactions, and stem cell vulnerabilities.

This article discusses the anatomical and biological aspects of hair follicle stem cells in the bulge region but reports no new research findings.

This study found that permanent wave treatment accelerates hair degradation after protease exposure, showing significant morphological differences compared to untreated hair and linked to damage from Alpha-helical region denaturation.

This study found that specific human hair keratins are differentially expressed in the hair follicle, suggesting a shared pathway of epithelial differentiation between hair cortex and nail plate cells.

This study estimates that young adults have about 230,000 tactile afferent fibers innervating their skin, with density varying by region and decreasing with age.

This study discovered nine human type I hair keratin genes, including a transcribed pseudogene, in a 190 kbp genomic region, revealing three gene subclusters based on sequence homologies.

This study estimates that approximately 230,000 tactile afferent fibers innervate the human body's skin, with varying densities across different regions correlating with spatial acuity and hair follicle density.

This study found that PGRP-S expression in mouse epidermis is specific to certain hair follicle epithelia, depending on the skin region, and can be transiently induced in flank skin hair follicle epithelium after exposure to Staphylococcus aureus, suggesting a role in environmental surveillance.

This study found that the currently established ultrasound cut-off values for diagnosing PCOS are not applicable to Indian women, suggesting that region-specific criteria improve diagnostic accuracy.

In this case report, the authors describe a female dog with alopecia in the neck and ear region, affected by dermatophytosis caused by the zoophilic fungus Microsporum canis, highlighting its zoonotic potential and prevalence in certain climates.

This study reports a case of dermatophytosis in an 11-month-old spayed female dog, which exhibited alopecia in the neck and ear tip regions, a condition common in tropical and temperate climates and caused by fungi affecting both animals and humans.

In this case report, a dog was diagnosed with dermatophytosis, a zoonotic fungal infection common in humid climates, presenting with alopecia in the neck and ear regions.

Environmental, chemical, mechanical, and personal health factors can all damage hair and contribute to hair loss or changes in hair quality.

This study found that proteomic analysis can distinguish hair samples across different ethnicities and body regions based on keratin protein levels, which may aid forensic hair identification.

This study observed that electrical stimulation of specific mechanoreceptive afferents in the orofacial region can evoke sensations consistent with their response properties, while others may require multiple afferents to access perceptual levels.

This study found that Bokusoku extract and its compound pentagalloyl glucose inhibited testosterone metabolism and sebum synthesis, suggesting potential therapeutic use for androgen-related acne.

This article reports electron microscope studies on the structure of hair and wool, but it does not present new clinical findings.

This review discusses the genetic factors involved in hair follicle morphogenesis and cycling and reports no new clinical results; it emphasizes the role of genes in hereditary hair diseases.

This study found that keratin 6hf, a type II keratin, is expressed in specific regions of mouse and human hair and suggests potential interactions with keratin 17, impacting hair development and associated disorders.

This study found that mutations in phosphorylation sites on the PIN3 protein disrupt its phosphorylation and subcellular trafficking, affecting auxin transport and root growth in a cell-type-specific manner.

This study found that disrupting Sox21 in developing teeth leads to severe enamel hypoplasia, regional osteoporosis, and abnormal hair formation, with impaired dental epithelial differentiation and regulation of hair follicle cell fate.

This study identified a regulatory element necessary for Foxn1 expression specifically in mouse thymic epithelial cells, crucial for thymus development but not affecting hair follicles.

This report of a rare case describes cutis verticis gyrate secondary to cerebriform intradermal nevus, emphasizing individualized treatment plans based on patient preference and condition severity.

This study concluded that the inner root sheath inhibits the expression of certain differentiation markers in hair bulbs, with calcium-induced changes paralleling those seen in hair follicle mid-segments.

In this study, most participants began using chemical hair dyes at a young age, experiencing adverse effects, but continued due to the perceived importance of hair color.