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This study identifies two previously unreported pathogenic RIPK4 gene variants, suggesting a functional link with cell adhesion molecules in ectodermal dysplasias.

In this research, the author hypothesizes that curly hair is influenced by the contraction of the Arrector Pili muscle, suggesting that its relaxation through specific treatments could potentially modulate hair follicle curvature, but further studies are needed to confirm this mechanism.

This study examined hair curvature in Japanese women, finding that 47% have curved hair, and identified structural differences in hair fiber, which resemble those in wool fibers.

This case report highlights trichotillomania's distinguishing "tonsure pattern" and nail-biting, emphasizing the need to differentiate it from other hair loss types due to differing treatments.

This case study describes a 14-year-old girl with pili annulati who had fragile hair, which may be due to cavities within the hair shafts as seen in electron microscopic examinations.

This study found that the tensile strength of curly hair is influenced by two main components, with springiness (toe region) contributing significantly, unlike in noncurly hair where it is negligible.

This study found that the curl in hair is due to the arrangement of different cell types, with shorter paracortical cells inside the curve and longer orthocortical cells outside.

This study concluded that the curliness of human hair, regardless of ethnicity, originates from the inhomogeneous internal nanostructure due to differences in the distribution of two types of cortices.

This study examined the formation of acquired curved hair and found that the fusion of hair matrix cells during follicle regeneration contributes to asymmetric follicle shapes and curved hair, potentially linked to changes in type IV collagen and protein expression levels.

In this study, injecting chimeric RNA–DNA oligonucleotides into mice skin caused a temporary mutation in keratin 17, altering hair morphology, but the mutation was transient due to genetic compensation or cell replacement.

This study observed that hair fibers in older women become more curved with age, decreasing hair luster due to their disordered alignment and structural differences between the convex and concave sides.

This report describes two cases of toe tourniquet syndrome in infants, highlighting the importance for pediatric orthopedic practitioners to diagnose and manage it promptly, suggesting a specific incision method to release hair strangulation if removal is challenging.

This study found super-contraction in the guard hairs of fur-bearing animals, likely due to oxidation in living animals, primarily affecting white and red foxes without prior heat or chemical treatment.

This study analyzed the swelling behavior of human hair during permanent waving treatment, finding that both the microstructure and macrostructure of intermediate filaments swell simultaneously at the initial stage, and while partially destructed by reduction, they are considerably restored through oxidation.

Mutations in keratin genes may link hair disorders to dental decay.

This study explored using tyrosine as a cross-linking agent for curling Asian hair and found that it could shape hair effectively before washing without damaging the fibers, though the method was less effective after washing compared to commercial products.

This article reviews cultural differences in the incidence of hair-thread tourniquet syndrome and finds it may be less prevalent in Iranian children compared to Europe, possibly due to social and cultural factors.

This report introduces a new potential sign, paired ear creases of the helix, which may have relevance to cardiovascular disease similar to diagonal ear lobe creases, in a case of coronary artery disease.

This paper presents two cases of hair tourniquet syndrome and suggests washing baby socks inside out as a potential preventative measure.

This case report describes the first documented occurrence of pili torti in a healthy young adult cat, marked by noninflammatory and nonpruritic symmetrical multifocal alopecia.

This article reviews the condition plica neuropathica, including its manifestations, potential causes, and treatment, but it does not provide new clinical findings.

This study found that Dkk4-knockout mice exhibited disrupted hair follicle patterning, including a lack of the first wave of hair follicles in the lateral back skin.

This study reports pseudopili annulati in a dark-haired Chinese girl, identifying the unique appearance and structural characteristics of her hair without finding abnormalities in the cuticle and cortex.

This review discusses the relationship between skin microbiome changes and conditions such as ageing and skin disease, emphasizing the need for further research, but reports no new findings.

This scoping review found that while some small human pilot trials of extracellular vesicles as therapeutics showed promising outcomes, variability in study design and lack of placebo controls limit definitive conclusions about their safety and efficacy.

This review discusses the roles and therapeutic effects of GLP-1 receptor agonists on the nervous, cardiovascular, and endocrine systems, but reports no new clinical results, emphasizing the need for further research on their impact on metabolism and tumor relationships in type 2 diabetes patients.

This review examines biological reasons for sex-based differences in COVID-19 outcomes, noting that females exhibit stronger immune responses, potentially explaining lower severity and mortality compared to males.

The study found that while a clinical protocol showed high specificity in detecting scrapie in goats, its low sensitivity suggests many cases might be missed if diagnosis is only based on clinical signs.

In this study, researchers found that high hair cortisol levels, indicating stress in cows, were associated with certain shelter and cow-level conditions such as unclean environments and physical injuries.

This review explores whether SARS-CoV-2 could trigger or worsen α-synucleinopathies, like Parkinson's disease, by affecting α-synuclein misfolding and aggregation, potentially linking COVID-19 with the development of parkinsonism-like symptoms.