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This study observed that a 3D culture model of hair follicle cells showed an anagen-like phase between days 3 to 6 and transitioned to a catagen-like phase by day 7, highlighting cell differentiation and structural development over time.

This review explores the mechanisms of adult stem cell self-renewal, using skin as a model, and reports no new results but raises important unanswered questions in the field.

This study evaluated a polyherbal hair oil formulation that included hibiscus flower and other plant extracts, suggesting it may increase hair growth, reduce hair loss, and provide dandruff protection.

This article outlines the clinical features, evaluation, and treatment strategies for androgen excess in polycystic ovary syndrome, highlighting important diagnostic and management approaches but reporting no new research results.

Fibroblasts can be turned into melanocytes for potential skin treatments.

This review explores the role of regulatory T cells in autoimmune skin disorders like alopecia areata and vitiligo, emphasizing unanswered questions and reporting no new experimental results.

This study found that using layer-by-layer encapsulation techniques on dermal papilla cells can support their function and may help treat hair loss when used in conjunction with freshly isolated epidermal cells.

This study found that hair follicle stem cells can proliferate and differentiate into keratinocytes on chitosan skin-engineered templates, suggesting potential applications in regenerative medicine.

This study found low concordance between distal and proximal hair cortisol concentrations during early pregnancy, particularly when measured with different assay methods.

This study developed a novel method to simultaneously measure finasteride, dutasteride, and related biomarkers in serum, finding that both drugs lowered DHT levels while increasing substrate concentrations.

This review highlights the challenges in screening for steroid 5 alpha-reductase inhibitors and discusses significant variability in the effectiveness of finasteride and dutasteride, calling for standardized testing methods to develop safer, more specific inhibitors from herbal preparations.

Method detects finasteride in plasma and semen with high sensitivity and accuracy.

This chapter reviews the methodology for isolating and differentiating CD34+ HAP stem cells into neural cells, but provides no new research results.

This study developed a new method using liquid chromatography-tandem mass spectrometry to measure multiple steroid hormones in hair, requiring significantly fewer strands than previous methods, with high accuracy and precision.

This review explains methods for studying chromatin variation at the single-cell level using scATAC-seq and discusses integrating these measures with other omics platforms but reports no new results.

This study presents a method using liquid chromatography tandem mass spectrometry to quantify biotin in plasma and serum, and explores how high biotin intake can interfere with diagnostic immunoassays that utilize biotin-streptavidin technology, potentially leading to misdiagnosis of endocrine disorders.

In this study, researchers developed a method to differentiate human iPSCs into cells that can generate all lineages of hair follicles, potentially aiding treatments for hair loss and skin disorders.

This study developed a sensitive HPLC-MS/MS method for determining cyproterone acetate levels in human plasma and found no significant difference in its concentration between two oral formulations in bioequivalence testing.

Hair testing is a reliable method for detecting workplace drug use when done with proper sample preparation and confirmation.

This study established a simple and accurate LC-MS method for quantifying vinflunine in Beagle dog plasma, supporting pharmacokinetic research in this context.

This study presents a new LC-MS/MS method that allows for more accurate detection of seven steroid hormones in human hair, enhancing the specificity and reliability of hormone analysis in psychoneuroendocrinological research.

This article reviews in-vitro and cell-free methods for assessing the efficacy of herbal ingredients in cosmetic formulations for skin health and hair growth, but it reports no new clinical results.

This study standardized a reproducible three-dimensional human skin model for testing skin tumor promoters, using methods that do not require human skin sourcing.

This study developed and validated a sensitive LC-MS/MS method for quantifying tamsulosin in human serum, achieving high analyte recovery and demonstrating applicability in clinical research for benign prostatic hyperplasia.

This study successfully applied an optimized LC-MS/MS method for accurately determining finasteride concentrations and assessing its pharmacokinetics in healthy volunteers.

This correspondence reported significant variability between quantitative PCR and bDNA assays for measuring Hepatitis C virus RNA in high-titer specimens, challenging the reliability of the Chiron assay.

In this study, researchers developed a chemiluminescence assay kit for detecting free testosterone, showing it performed well and met clinical demands with low cost and automation; free testosterone levels differed in patients with various diagnoses, suggesting its diagnostic relevance for diseases such as prostate malignancy.

This study developed an accurate and reliable HPLC-ESI-MS method for determining candesartan levels in human plasma, useful for pharmacokinetic studies.

This study found that the combination of mammography and hair X-ray diffraction increased sensitivity for detecting breast cancer compared to using each method alone.

This study found that HairTime, a novel non-invasive assay using hair samples, accurately estimates chronotype and reveals its plasticity influenced by work schedules and lifestyle factors.