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This study found that zebrafish and stickleback fish use similar genetic programs for tooth regeneration, despite differences in their dental structures.

This review discusses how hair care practices impact hair breakage, particularly in patients of color, and reports no clinical results; the authors review testing and measurement advancements and highlight gaps in understanding structural differences.

This review from JAAD highlights disparities in the effectiveness of hair preservation techniques for Black women undergoing chemotherapy, noting that current methods like scalp cooling often underperform due to structural differences in Black hair, and recommends tailored strategies such as adjusting hair preparation before treatment.

This article reviews dermatological research on black skin, emphasizing its unique physiological characteristics and common conditions like acne and eczema, and suggests more focus is needed on its structural differences and clinical responses.

This study reviews the potential of dibenzo derivatives as safer cancer treatments but finds conflicting evidence about their effectiveness, possibly due to structural differences among the compounds, and reports no new results.

This study reports the development of a novel protocol to purify human TRPV3 ion channels, revealing functional properties and differences in ligand interactions, enabling further structural and functional research.

This study investigated the immunohistochemical characteristics of keratin proteins in epidermal appendages, finding variable staining patterns in different skin structures and tumor cells, which suggests differences in keratinization.

This study found that improved protein extraction methods enhanced the resolution of hair proteins on gels, but differences in protein abundance between curly and straight Japanese women’s hair were minimal and unlikely to affect hair structure.

Type I and Type II keratin chains can form heterodimers despite sequence differences.

This article reviews the structural similarities and common disorders of hair and nails, highlighting their joint involvement in congenital and acquired conditions, but it reports no new clinical results.

This study suggests that varying intersheet interactions may explain the differences between the two polymorphic forms of macrofibril assembly in Merino wool and hair.

This study used infrared spectroscopic imaging and scanning electron microscopy to reveal that alopecic hair has more irregular laminated structures and differing chemical profiles than normal hair, suggesting changes related to alopecia progression.

Hair and follicle keratins differ in structure and expression, especially in cysteine content.

This study reports the crystallization of the human androgen receptor's ligand-binding domain with nonsteroidal ligands, which may aid in understanding the differences in binding compared to steroidal ligands.

This study found that while porcine skin resembles human skin, there are significant regional differences in skin composition and morphology, which could affect its use as a human analogue in research.

This review discusses new developments in understanding the structure and properties of keratin fiber cell membrane complexes, without reporting new experimental results.

Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.

This study found that while there are some ethnic differences in skin and hair follicle characteristics, these differences are unlikely to significantly affect the penetration of topical substances, suggesting other factors such as cultural habits may also play a role.

This study indicates potential differences in the hair spectra of individuals with mood disorders, suggesting a promising, yet preliminary, method for noninvasive prediagnosis.

This study concluded that while sex-related biological factors may influence COVID-19 outcomes, they do not fully explain the differences in mortality between women and men, underscoring the need for a gendered, intersectional approach to understanding health inequities and risk factors.

Understanding hair follicle structure and techniques improves hair restoration outcomes.

Changes in hair follicle structure may help diagnose and monitor alopecia.

mHa2 and mHa3 keratins have different structures and roles in mouse hair and tongue tissues.

This study found that the internal structure and fracture patterns of hair vary among different mammal species, which could inform the development of keratin-based biomaterials for medical and cosmetic applications.

This study found that distinct hair fiber structures among blue fox, mink, and otter rabbit can be used to identify and differentiate these fur types.

This study found that the structural and chemical composition of human curly hair may resemble that of sheep wool, implying a shared characteristic among mammals with wavy hair.

This study found that the mouse nail unit structurally resembles the human nail unit, indicating it could be useful for researching nail diseases and biology.

This study found no qualitative skin differences during development between mutant hairless USP mice and BALB/c mice, except for enlarged cysts in the hairless strain.

This article discusses the structures surrounding hair follicles and introduces aspects like follicle groups and the dermal sheath, but it reports no new research findings.

This study found evidence of structurally and functionally distinct AR-SARM protein complexes, which may contribute to understanding how SARMs achieve tissue-selective effects.