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This study reports a novel LC/MS method that separates and analyzes all known ceramide subclasses in human stratum corneum, identifying a new subclass, CER [EOdS], with minimal sample preparation.

This article reviews the role of IGF-1 in acne pathogenesis and discusses how diet and smoking may influence insulin/IGF-1 signaling, but reports no new clinical results.

This study found that schizophrenia-derived neurons exhibited impaired differentiation and mitochondrial dysfunction, suggesting a potential link between these factors and neurodevelopmental processes in schizophrenia.

This article reviews challenges in interpreting observational COVID-19 data due to biases from non-random sampling, discussing strategies to address these biases but reporting no new results.

This study found that TCDD significantly reduced EGF receptor binding in various animal models, linked to toxic symptoms like weight loss and developmental delays, with receptor phosphorylation persisting several days.

Androgens can cause hair growth in some areas and hair loss on the scalp.

This study determined that nonclassical congenital adrenal hyperplasia has a 2.2% prevalence among hyperandrogenic women in Spain, with basal serum 17-hydroxyprogesterone showing excellent diagnostic performance.

This study introduced a validated LC-MS/MS-based method for profiling long-term steroid concentrations in human scalp hair, offering potential applications in endocrinology research.

In this study, researchers used genetic data from over 52,000 men to identify over 250 genetic loci associated with severe hair loss and developed a predictive algorithm for determining hair loss risk.

This review discusses the role of the circadian clock in skin functions such as cell proliferation and UV protection and reports no new results; the authors note its potential in studying immune regulation and seasonal behaviors.

This article discusses the challenges in hair follicle pigmentation research compared to epidermal melanocytes and highlights the limitations of relying on mouse models, but reports no new experimental findings.

This report verifies isotretinoin's significant efficacy in treating severe acne over the past year in the U.S., highlighting the need for careful patient selection and monitoring due to potential side effects.

This study found that hair follicles in both mice and humans may serve as an important site for melatonin synthesis and signaling, potentially influencing hair cycle regulation by modulating keratinocyte apoptosis.

This study demonstrated the development of high-density protein microarrays allowing for antibody binding characterization and serum profiling from patients with autoimmune diseases, suggesting potential for diagnostic marker discovery.

This article reviews the molecular mechanisms involved in androgenetic alopecia and the androgen's paradoxical role in hair growth, but reports no new experimental findings.

This study found that children are susceptible to SARS-CoV, with good short- to medium-term outcomes, and that sore throat and neutrophilia can predict severe illness.

The researchers reported that differences in brain functional connectivity between unmedicated seasonal affective disorder patients and healthy controls vary with ICA model order, peaking in volume at model order 70.

This article reviews common pitfalls in biopsy site selection and technique that can lead to misdiagnosis of various skin conditions, highlighting the importance of proper biopsy practices for improving diagnostic accuracy.

This review explores the role of hormones in pilosebaceous units and associated skin disorders, focusing on androgen action, without presenting new clinical findings.

This article reviews the use of trichoscopy for diagnosing various types of alopecia and reports no new clinical results; it is suggested as a non-invasive method for diagnosis and monitoring treatment responses.

This study observed that vitamin D receptor expression in certain hair follicle cells varies throughout the murine hair cycle, suggesting a potential role for 1,25-dihydroxyvitamin D3 in hair follicle biology.

This study found that the E3 ligases NEDD4 and NEDD4L regulate intestinal stem cell priming by degrading the LGR5 receptor, and their loss leads to increased Wnt activation and crypt proliferation, which in turn accelerates intestinal tumor progression in mice.

This review discusses the diagnosis, symptoms, metabolic complications, and treatment of polycystic ovary syndrome, offering no new clinical findings but includes a summary of treatment recommendations.

This essay reviews the potential of protein microarrays in proteomics and diagnostics, highlighting no new clinical results but emphasizing the need for advanced high-quality proteins and antibodies.

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 review discusses the link between insulin resistance and skin conditions such as acanthosis nigricans and psoriasis, but provides no new clinical results.

This article discusses the complexities of diagnosing and managing polycystic ovary syndrome in adolescents and highlights the lack of established diagnostic criteria and unclear clinical implications, without presenting new clinical findings.

This article reviews the characteristics and classification of SAHA syndrome and its relationship with other conditions, without presenting new clinical findings.

This study suggests that decreased SHBG levels and increased FAI, free testosterone, and DHEAS concentrations are effective in diagnosing PCOS in epidemiological studies of women of reproductive age.

This review highlights the increasing clinical applications of high-frequency ultrasonography in dermatology, particularly for assessing the depth of skin tumors and monitoring inflammatory skin diseases, but reports no new clinical results.