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This study found that male and female chicken feather morphology and color patterns can be extrinsically modified through molting and resetting the stem cell niche during regeneration.

This study found that serum androgen levels in premenopausal women may be influenced by genetic variants of the androgen receptor and estrogen receptor β genes.

This study found that vitamin D regulates cholesterol metabolism and may influence prostate cancer development through mechanisms affecting prostate cell growth and sex hormone metabolism.

This review discusses how macro-environmental factors such as intradermal adipose tissue and sex hormones influence hair and feather stem cell niches, suggesting environmental targets for regenerative medicine, but reports no new clinical results.

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.

In this study, researchers found that venture capitalists with below-average physical attractiveness are more influenced by the attractiveness of entrepreneurs when making investment decisions, and this sensitivity changes between investment rounds.

This review discusses sex-based differences in immune responses, focusing on genetic, hormonal, and microbiome factors influencing infections like COVID-19, and reports no clinical results.

This study found that penile and clitoral differentiation in mice is influenced by androgen exposure, with penile features developing postnatally requiring prenatal and ongoing androgen presence.

This review discusses the roles of sex hormones in COVID-19 progression and highlights conflicting evidence on their protective effects and the complexity of sex and gender influences on the disease.

This study found that specific SHBG gene variants, rs727428 and rs6259, were associated with PCOS in Mediterranean women, although the associations were relatively weak and do not indicate a causative role.

This study found that ancient and modern Chinese goats share close genetic ties, originating from the Fertile Crescent, with genetic divergence influenced by China's climatic divisions.

This study reported that the most common hair loss disorder among children in south-east Nigeria was tinea capitis, and its clinical course was influenced by parental attitudes towards treatment.

This research suggests that autism's genetic links are partially related to factors influencing physiological sex differences, with rare variants interacting with placental sex differences and common variants affecting steroid-related traits.

This study identified genetic, biological, and technical factors that influence circRNA expression in the human brain, connecting these factors to potential genetic risk for diseases like schizophrenia and type II diabetes.

This study found that testosterone significantly influenced the expression and function of certain ion transporters in the vas deferens, impacting fluid secretion and contributing to a suitable environment for male fertility.

This study highlights factors contributing to increasing seborrheic alopecia among teenagers, including hormonal, lifestyle, and psychological influences, and suggests integrated treatment strategies including medication, lifestyle adjustments, and psychological interventions.

This study examined sheltered and adopted domestic cats, finding that dark coat color and living environment significantly influence hair cortisol and DHEA levels as stress indicators, while age and sex do not; adoption was associated with reduced long-term stress, underscoring its benefits for feline welfare.

This study found that specific SNPs in the sheep FAT1 gene are significantly associated with wool quality traits, suggesting potential markers for improving wool crimp, fibre length, and fibre diameter in breeding.

This study observed that men who conform more strongly to traditional masculinity norms are likelier to undergo cosmetic surgery as a way to assert power, success, dominance, and sexual success.

This review examines the long-standing use of "Dictamnus" in traditional medicine, highlighting the promising potential of D. albus and D. hispanicus as herbal drug candidates, but presents no new experimental findings.

This review explores the various genetic, hormonal, environmental, and nutritional factors proposed to explain the historically shorter stature of Sardinians, while reporting no new empirical findings.

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

This source highlights the essential role of androgens in women's health, noting their impact on various body systems and the critical need for more research on androgen therapies regarding side effects, patient selection, and laboratory standardization.

This review discusses unique stroke risk factors in women, such as hormonal and reproductive influences, and highlights the need for further research to better predict and manage these risks.

This review discusses sex differences in immune responses to COVID-19 and highlights that males tend to experience more severe symptoms and higher mortality but reports no new clinical findings.

This review summarizes the genetic studies on female pattern hair loss, highlighting the lack of clearly identified susceptibility loci and suggesting distinct aetiological differences from male pattern hair loss.

This article discusses the sexual health issues faced by postmenopausal women and highlights the need for more research and tailored treatments, but it reports no new clinical results.

This narrative review highlights the critical role of intracrine hormone production in peripheral tissues, suggesting that continuous-release subcutaneous testosterone pellet therapy may offer a more effective symptom-driven approach for aging populations, though large-scale randomized controlled trials are needed for confirmation.

This review examines melatonin's role in managing PCOS and its potential to improve hormonal balance, oxidative stress, sleep quality, and mood, but reports no new clinical results.

In this study, researchers found that in mice, gonadal hormones and biological sex do not affect the expression of SARS-CoV-2 entry proteins ACE-2 and TMPRSS-2 in the respiratory tract, regardless of disease state.