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The document describes how to tell different types of non-scarring hair loss apart by looking at hair and scalp tissue under a microscope.

This article reviews the similarities in early development processes of hair follicles, teeth, and mammary glands and reports no new experimental findings.

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.

Female mice are less affected by certain substances that alter alcohol consumption compared to male mice.

This study observed that hair density and growth rates vary by location and age, and the presence of thin hairs predominates in younger women with mild patterned hair loss.

This study developed a mouse model to monitor hair follicle cycling macroscopically through live bioluminescence imaging, enabling detailed analysis of hair cycle and propagation dynamics influenced by environmental factors.

This study observed that pelage development in male blue foxes born in early June was more synchronized than those born in early May, with differences likely influenced by melatonin levels.

This review discusses the biological and cosmetic aspects of hair aging and reports no new clinical results; it highlights current treatments and future research directions to address both aging factors.

This review discusses unique anatomical features and management strategies for crown alopecia but reports no new clinical findings, focusing instead on surgical techniques for natural-looking results and optimal density.

This study reports that cutaneous manifestations such as herpes zoster, purpura, and livedo reticularis in COVID-19 patients can potentially indicate disease severity, aiding in the prediction of the illness's progression and guiding dermatological management during the pandemic.

In this study of transgender and gender-diverse adults, the researchers observed that one-third of those on psychotropic medications within two years of starting hormone therapy experienced psychotropic polypharmacy, with a significantly higher likelihood of potential drug-hormone interactions in this group.

The book is a detailed guide on hair and scalp diseases, useful for dermatopathologists.

This study reports that specific hair care practices common among individuals with high-curl-pattern hair could exacerbate seborrheic dermatitis, presenting significant treatment challenges and psychological impacts, and emphasizes the need for further research to tailor culturally sensitive solutions.

This study found that the petroleum ether extract of Solanum nigrum may promote hair regrowth in testosterone-induced hair loss in rats, as indicated by increased follicle density and anagen/telogen ratio.

This case report highlights a rare diagnosis of an androgen-secreting adrenal tumor in a patient with hyperandrogenism and virilization symptoms, emphasizing the role of gynecologists in early detection.

This study observed changes in the pattern of dermatological diseases among Iraqi females during the COVID-19 pandemic, with increased hair loss and decreased viral infections, which may relate to pandemic-associated stress or mask-wearing.

In this study, researchers observed an increased incidence of pattern hair loss and telogen effluvium among COVID-19 patients, potentially linked to psychological stress, systemic inflammation, and oxidative stress, with reduced anagenic expression of proteoglycans suggested as a mediating mechanism.

This research suggests that plucked hair follicles may serve as a reliable surrogate tissue for tumor biopsies in drug development, based on a mouse model linking hair and tumor pharmacodynamic responses.

This case report documents a cat with necrolytic migratory erythema due to glucagonoma and diabetes mellitus, highlighting similarities to glucagonoma syndrome in humans.

Other common signs, not just the well-known immune cells around hair bulbs, are important for diagnosing hair loss from alopecia areata.

This review examines the histopathologic features of four common types of noncicatricial alopecia and reports no new clinical results.

In this study, researchers found that a polyphenolic extract from Annurca apples, high in procyanidin B2, increased hair growth, density, and keratin content in healthy subjects after 2 months of use, and stimulated keratin biosynthesis in vitro.

In this study, a topical formulation with compounds from the monoterpenoid family significantly improved hair growth indicators like anagen:telogen ratio, hair fall, and visual hair density in men and women with pattern hair loss.

This article discusses loose anagen syndrome, highlighting its characteristics, diagnostic methods, and spontaneous improvement over time, but provides no new clinical results.

This study found that the p63 transcription factor is expressed during rat epidermal development and may serve as a specific marker for keratinocyte progenitor cells.

Some people with chronic hair loss may have thyroid autoimmunity.

This study found that among patients with seborrheic dermatitis, the "dandelion" vascular conglomerate observed through trichoscopy was correlated with Malassezia scalp colonization.

This article explores evidence for a rational strategy in the endocrine and metabolic management of patients with excess body hair or scalp loss and reports no new clinical results.

This article discusses how changes in hair and nails may indicate systemic diseases, but it provides no new results; the authors emphasize their usefulness in clinical diagnosis.