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This retrospective review of hair samples from pediatric patients indicated that microscopic hair examination might be a useful first-line investigation for diagnosing various genetic conditions.

In this study, finasteride treatment for two years did not significantly reverse miniaturized hair follicles in men with male pattern hair loss, challenging the "reversal hypothesis" as 79 out of 113 miniaturized hairs remained unchanged.

This article reviews common scalp and hair disorders in children and adolescents and outlines diagnostic approaches, but reports no new clinical findings.

In this study, researchers found that neonate hairs have a distinct microstructure with no medulla and smaller hair follicles compared to adult hairs.

This study found significant differences in hair density, non-vellus hair diameter, and percentage of miniaturized hair between normal women and those with female pattern hair loss, particularly in the midscalp and parietal areas.

The study found that prolactin expressed in human scalp hair follicles acts as an autocrine modulator, inhibiting hair growth and promoting hair follicle regression, which may contribute to hair loss in hyper-prolactinemia patients.

This article reviews the clinical and diagnostic features of hair shaft disorders, emphasizing the role of structured patient assessments and the avoidance of hair trauma, but reports no new results.

This study found that dermoscopy showed distinctive patterns for different types of alopecia, supporting its clinical usefulness for diagnosing diseases with small round or oval hairless patches on the scalp.

This review examines the debated link between iron deficiency and nonscarring scalp alopecia in women, offering no new clinical results but emphasizing the need for further research and well-designed trials.

This study described specific skin and hair follicle abnormalities in three Japanese patients with Cantu syndrome, which may relate to the regulation role of SUR2 in hair follicle growth.

This case report emphasizes that lipedematous scalp and lipedematous alopecia are not distinct diseases, highlighting the need to consider reversible causes of alopecia for effective treatment.

This review discusses various causes of hair loss, emphasizing the importance of a structured diagnostic approach, and reports no new clinical findings.

A teenager's hair with alternating white and dark bands, known as Pili annulati, is a genetic condition that is usually harmless and often considered attractive.

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 review classifies mutant mice with hair abnormalities into six categories, providing an annotated table that serves as a reference for understanding the molecular controls of hair growth.

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.

This review summarizes the clinical, trichoscopic, and histopathological features of alopecia types associated with cutaneous and systemic lupus erythematosus and explores their links to disease activity, but it reports no new clinical results.

This paper reviews symptoms, causes, and treatment strategies for common scalp conditions such as dandruff and psoriasis, but does not present new clinical findings.

In this study, lupus panniculitis of the scalp was associated with a high incidence of recurrence and progression to systemic lupus erythematosus, despite various treatments showing complete response within weeks.

This review discusses trichoscopic features of hair disorders in individuals with dark skin phototypes and reports no new clinical results; the authors emphasize the need for more specific diagnostic criteria for these populations.

This study developed a deep learning model using the VGG architecture to predict hair disorders and provide tailored therapeutic suggestions, showing reliable recognition of conditions like dandruff, fungal infections, and alopecia by analyzing images of hair and scalp.

This study suggests that finasteride may inhibit the enzyme PNMT, potentially contributing to its sexual and psychological side effects.

This study reviewed recent advancements in using botulinum toxin for treating androgenetic alopecia and emphasized the need for further research to determine the most effective injection sites and depths, as current strategies show inconsistent results.

This study found that cyclosporine A treatment at 5 mg/kg/day may reduce inflammation and promote gland regeneration in dogs with sebaceous adenitis, though symptoms returned when treatment stopped.

This review summarizes recent findings on scalp involvement in pemphigus vulgaris and pemphigus foliaceus, highlighting diagnostic methods and their underlying histopathological, immunopathological, and clinical features, but reports no new clinical results.

This study reported that exogenous R-spondin-1 can restore hair follicle neogenesis in adult mouse cells, highlighting differences in gene expression and signaling pathways between fetal and adult dermal papilla cells.

This systematic review evaluated 60 studies on trichoscopy in hair and scalp disorders, revealing gaps in accounting for variables like disease stage or hair texture, and underscoring a need for more comprehensive analyses to fully understand trichoscopic patterns.

In this study, a notable number of dermatology outpatients were found to have incidental scalp findings, indicating the importance of examining the scalp during clinical evaluations.

The document concludes that dermatology training and grading scales need to better represent dark-skinned individuals to improve diagnosis and assessment of skin conditions.

Iron supplements may reverse premature hair graying caused by iron deficiency.