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In this study, the researchers reported extensive gene loss and high pseudogenization rates of α-keratin genes in cetaceans compared to terrestrial mammals, likely linked to hair loss and aquatic adaptations.

This study found that cetaceans have adapted their fibroblast growth factors to assist in low bone density, hypoxia tolerance, and the development of rigid flippers, reflecting significant evolutionary changes for aquatic life.

This study found that the Hr gene loss and positive selection for the FGF5 gene in cetaceans likely contributed to hair loss as these animals adapted to aquatic environments.

This publication reviews the World Professional Association for Transgender Health's Standards of Care for supporting transgender and gender nonconforming people, with adjustments needed for diverse global contexts and no new clinical results.

This case report describes a woman with hyperandrogenism and menstrual disturbances, where an ovarian steroid cell tumor was identified and removed, leading to resolution of symptoms.

This book reviews the symptoms, diagnosis, and treatments for Polycystic Ovary Syndrome, providing a comprehensive exploration but reports no new clinical results.

This study reports that dynamic interactions between stem cells and their niche, influenced by macro-environmental factors, regulate regenerative behavior in integument pattern formation.

This study found that carbon and nitrogen isotope analysis of cattle hair reflects dietary and farm system differences, offering insights into cattle nutritional ecology and agroecosystem characteristics.

This review discusses normal menstrual variations and common menstrual disorders in adolescent girls, focusing on symptoms, evaluation, and management, but does not present new clinical results.

This study found that women with polycystic ovary syndrome in the UK show significant differences in phenotypic and metabolic characteristics based on ethnicity, age, and obesity, influencing management strategies.

This study found that young women with PCOS exhibited altered white matter microstructure and reduced cognitive performance compared to matched controls.

This review discusses the interplay between polycystic ovary syndrome, aging, and fertility in women, and reports no new clinical results; the authors highlight pathways and interventions needing further research.

This review discusses the increased cardiometabolic risk associated with polycystic ovary syndrome and highlights the need for tailored management, but it reports no new results.

This study observed that high levels of immunoreactive cortisol in the tail hair of captive Asian elephants were often associated with stressful or distinct behavioral events, suggesting its potential for reconstructing their physiological history.

This review discusses the 2023 International Guideline for PCOS assessment and management, highlighting updated evidence-based recommendations and practice points aimed at improving care and health outcomes, but notes that research quality remains generally low to moderate.

This study found that the differential expression of α- and β-keratin genes in feathers may explain their morphological and structural diversity, highlighting the chicken as a model for studying keratin-related diseases.

This study reports that KRTAP-like proteins, which resemble keratin-associated proteins found in mammals, are also present in the cornified teeth of various lamprey species, suggesting these proteins may serve similar functions in skin appendages across different vertebrates despite independent evolutionary origins.

In this review, researchers examined the molecular diversity and expression patterns of major skin appendage proteins, like keratins and EDC proteins, in tetrapods, highlighting recent findings in reptiles and birds and identifying knowledge gaps for future research.

In this study, researchers propose that different vertebrate skin appendages, such as hair, feathers, and scales, evolved in parallel from a shared ancestral cell structure associated with teeth, dating back approximately 420 million years ago.

This study examined the complex morphology of the cornified claw sheath in domesticated cats, uncovering structures and growth patterns that help maintain sharp claw tips essential for climbing and prey capture.

This study explored the potential of human hair keratin as a filtration material, finding that it may effectively absorb the pollutants diclofenac and perfluorobutanesulfonate. The researchers reported significant binding affinities through molecular simulations, supporting further investigation into keratin's use for water purification.

In this review, skin changes like hair loss and brittle nails linked to nutritional deficiencies common in eating disorders are examined as critical diagnostic tools, highlighting the need for integrated care involving dermatologists, psychiatrists, and nutritionists for effective management.

This book provides a comprehensive guide to managing polycystic ovary syndrome, detailing its symptoms, diagnosis, treatment options, and long-term health implications without presenting new clinical results.

The document explains that Polycystic Ovary Syndrome is a complex condition that is hard to diagnose and manage, but it doesn't talk about hair loss or hair growth.

Excessive androgens in women with polycystic ovary syndrome can lead to excessive hair growth and hair loss, but this might not fully explain these conditions.

This study found that patients with alopecia areata had significantly higher serum T3 and cortisol levels compared to healthy controls, although both remained within normal ranges, highlighting potential hormonal involvement in the condition. However, no significant differences were observed in T4 and TSH levels.

This consensus report reviews current knowledge and identifies knowledge gaps concerning the various health aspects of polycystic ovary syndrome, without presenting new clinical findings.

This article reviews the complex pathophysiology of polycystic ovary syndrome, highlighting how genetic, hormonal, and environmental factors contribute to its diverse symptoms, and reports no new results.

This study found that young indigenous South Asian women with polycystic ovary syndrome are more likely to be centrally obese and have metabolic syndrome, particularly with increasing age, higher BMI, and acanthosis nigricans.

This review discusses WHO group 2 anovulation, highlighting polycystic ovary syndrome as a common cause of infertility and noting current treatment options without presenting new clinical results.