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This article discusses the technique of laser Doppler velocimetry for measuring cutaneous blood flow and does not report new research findings.

This study presents a new classification of adult human scalp hair patterns based on high-resolution photographs, which may assist hair restoration surgeons and dermatologists in determining appropriate punch size for follicular unit extraction.

This article discusses the potential link between genetic variants associated with androgen receptor activity and racial variations in COVID-19 mortality, suggesting a possible role for anti-androgens in treatment, but reports no new clinical findings.

This article discusses how racial essentialism impacts health professions education by increasing prejudice and reducing empathy, and it suggests reforms to emphasize racism as a cause of health inequity, without presenting new research data.

This article discusses the complexities of treating hair and scalp disorders in African American patients, emphasizing the importance of understanding their specific hair care practices and the unique impact on quality of life, but reports no new empirical findings.

Surgery to fix a broken upper arm bone can sometimes lead to nerve damage.

This study found that in the Thai population, hair density varies by scalp location and decreases with age, and that Asians generally have lower hair density compared to Caucasian and African populations.

Among reproductive-aged women in Iran, this study found that the prevalence of PCOS varied significantly depending on the diagnostic criteria used, with estimates ranging from 7.1% to 14.6%.

This study surveyed hairline preferences and found that the M-shaped contour was most preferred overall, with lower forehead heights favored by men and those without a history of hair transplantation.

This study highlights the limited number of cross-sectoral evaluations of health interventions and suggests that guidance from health technology assessment agencies could enhance evidence and encourage novel investment in population health.

This study found that increasing the follicle number criteria for diagnosing PCOS to 25 per ovary excluded some women who continue to show evidence of metabolic risk.

This study found that policemen aged 40-59 years had a twofold higher prevalence of androgenetic alopecia compared to the general population, with obesity and sunlight exposure contributing to the risk.

This study found that men have higher COVID-19 positivity, hospitalization, and death rates than women, even when accounting for age differences.

This chapter discusses stem cell activity in feather and hair follicles, emphasizing how stem cells maintain their population by cycling between quiescence and activation in specialized niches but reports no new results.

This study identified a higher basal metabolic rate as an independent and causally relevant risk factor for nonalcoholic fatty liver disease in the Chinese population, noting that sex-specific effects may require tailored management strategies.

This study in a California safety net hospital found no apparent increase in alopecia areata incidence among individuals who received COVID-19 vaccination compared to those unvaccinated, with odds ratios indicating a lower risk in the vaccinated group.

This dissertation investigated barriers to clinical translation of adipose-derived mesenchymal stem cell-based vascular grafts, highlighting issues with thrombosis in diabetic patients and proposing alternative cell sources to improve applicability.

This study found that stress plays a significant role in altering phenotypic features and body composition among PCOS patients, potentially worsening due to the COVID-19 pandemic.

In this study focused on reproductive-aged women assessed for polycystic ovary syndrome under NIH 1990 criteria, only 15.4% with menstrual dysfunction required androgen measurements, and just one-quarter of these showed elevated androgen levels.

This study reported a 6.3% prevalence of PCOS among women in a Sri Lankan community, with most cases presenting as oligo/amenorrhea and polycystic ovaries.

This study found that diffuse and pseudo-fringe sign patterns are common in Asian patients with frontal fibrosing alopecia, and that treatments combining antiandrogens or antimalarials with topical therapy are effective.

This study found that in Alcorcón, Spain, migrants from Sub-Saharan Africa, the Caribbean, and Latin-America had a higher risk of COVID-19 infection during the first wave compared to Spaniards.

This study found that long-term use of 5α-reductase inhibitors is associated with improved overall survival in men with renal cell carcinoma, particularly those with low comorbidity not receiving surgery or systemic therapy, suggesting a potential role for androgen modulation in disease management.

In this study, researchers examined thyroid function and autoantibody levels in patients with alopecia areata and vitiligo, finding similar rates of thyroid dysfunction and autoantibody presence in both groups, with no significant differences based on ethnicity or gender.

This study found no significant difference in CAG repeat numbers of the androgen receptor gene between Han Chinese women with female pattern hair loss and healthy controls, suggesting it may not be a genetic marker for FPHL in this population.

This study evaluated how often racial and ethnic minorities were included in phase II and III randomized controlled trials for androgenetic alopecia conducted in the United States in the past decade, aiming to inform more personalized treatment approaches.

This article reviews common hair growth abnormalities in children, emphasizing the importance of distinguishing normal development from potential signs of metabolic disorders and indicates no new clinical results.

This study found significant racial and ethnic disparities in the incidence and psychological impact of chemotherapy-related alopecia, with Asian women experiencing the greatest burden, highlighting the need for personalized and culturally sensitive care.

African American adults and non-White children experience more hair loss episodes than White patients with alopecia areata.

This study highlights that the incidence and mental health impact of alopecia areata is higher among non-White ethnic groups, emphasizing the need for targeted healthcare for those at greatest risk.