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This study concluded that the digit-length ratio (2D:4D) does not predict androgenic alopecia development, suggesting prenatal androgen exposure does not predispose men to this condition.

In this review, the authors evaluated the potential of using the second to fourth digit ratio (2D:4D) as a predictor for androgenetic alopecia, suggesting future research directions but not reporting definitive results.

This study reports that a lower 2D:4D finger length ratio is significantly associated with higher disease activity and reduced spinal mobility in females with ankylosing spondylitis, but not in males.

This research suggests that the digit ratio, 2D:4D, is unlikely to be a significant indicator of male androgenetic alopecia, contradicting a prominent isolated finding from a previous study.

In this study, researchers found that the congenital absence of the palmaris longus muscle was relatively uncommon and showed no significant differences according to sex, side, or digit ratio (2D:4D) among individuals assessed using MRI and radiographs.

The study found that males with androgenetic alopecia had a significantly lower left-hand 2D:4D digit ratio compared to healthy controls, suggesting this ratio may help estimate future AGA risk.

This study found no significant difference in 2D:4D ratios and autism questionnaire scores between acne vulgaris patients and healthy controls, despite investigating potential links in this novel context.

This article discusses the connection between prenatal androgen exposure, marked by the second-to-fourth digit ratio, and seborrheic dermatitis, but reports no new experimental findings.

This study found that in male patients, a lower right-handed 2D:4D digit ratio combined with older age correlated with increased severity risk of androgenetic alopecia.

This study found that among vitiligo patients in south-southern Nigeria, there were significant correlations between digit lengths and digit ratio, but further research is needed due to the small sample size.

This study found that while prolactin and DHEA-S levels were higher in women with hirsutism compared to controls, there was no significant correlation between second to fourth digit ratio and hormonal profiles.

In this study, a significant negative correlation was observed between the 2D:4D digit ratio and maxillary sinus volume in men, suggesting an androgenic hormone influence on sinus volume development.

This study found that males with androgenetic alopecia had a significantly lower 2D:4D digit length ratio in the right hand compared to healthy controls, which may indicate prenatal androgen exposure.

This study found that women with PCOS had significant hormonal imbalances, increased central obesity, and a lower 2D:4D digit ratio, suggesting prenatal androgen exposure may play a role in the condition's development.

This study found that women with lower 2D:4D ratios and fewer middle-phalangeal hairs reported more adverse side effects from oral contraceptives, suggesting these features may predict hormonal contraceptive side effects.

Finger length ratios are not linked to the number of specific gene repeats affecting testosterone sensitivity.

This study found that self-reported androgen-driven phenotypes, like balding and finger length ratios, were not associated with cancer aggressiveness or biochemical recurrence in prostate cancer after prostatectomy.

In this study, researchers found that males with alopecia areata had a significantly lower 2D to 4D finger length ratio compared to healthy controls, suggesting this ratio might predict alopecia areata development, though it did not correlate with disease severity.

In this cross-sectional study, researchers observed that patients with hidradenitis suppurativa, particularly women, had lower 2D:4D finger length ratios compared to healthy controls, suggesting a potential link to prenatal androgen exposure and disease severity, though further prospective research is needed to confirm this hormonal impact.

This review discusses the potential roles of androgens and antiandrogens in COVID-19 outcomes, noting unresolved questions about their effectiveness and safety for treatment.

In this study, Flii overexpression in mice enhanced fingertip regeneration and nail formation after both distal and proximal amputations, suggesting a role in digit and hair follicle regeneration possibly involving Wnt signaling.

In this study, researchers identified a gene expression pre-pattern and implicated the Wnt inhibitor Dickkopf 4 in the formation of color patterns in domestic cat embryos.

This review discusses how physical appearance, including skin, facial features, and physique, is linked to aging and health risks, but reports no new experimental results.

This article outlines the rationale, design, major findings, and updated objectives of the ongoing Rotterdam Study, without presenting new research data.

This article discusses the rationale, design, major findings, and updated objectives and methods of the ongoing Rotterdam Study on various diseases, without reporting new research results.

In this study, researchers found that none of the participants were color blind and reported varying lengths of index and ring fingers among them, exploring a possible link between these finger length ratios and sex-influenced gene expression.

This study compared hirsutism levels, hand measurements, testosterone, and DHEAS levels in women aged 18 to 38 but does not report new definitive findings.

This study found that astaxanthin-loaded mucoadhesive patches effectively promoted recovery of oral premalignant lesions in vivo without the side effects seen with clinical tretinoin cream.

In this study, the ChatGPT-5 model accurately answered 76.47% of questions on the Polish endocrinology specialty exam, surpassing the 60% passing threshold, yet its role in clinical decision-making remains uncertain, highlighting the need for further research.

This study introduced ElixirSeeker2, a computational framework for designing anti-aging peptides, and found that some newly identified peptides significantly delayed cellular senescence and enhanced cellular and locomotor functions in aged Caenorhabditis elegans.