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This study found that specific DNA variants in the TCHH, WNT10A, and FRAS1 genes are associated with predicting straight hair in Europeans, showing high sensitivity but low specificity, especially using a neural networks approach.

This study reported that a newly developed UHPLC-MS/MS method detected illegal synthetic hair-growth compounds in 10% of 76 hair-growth products, highlighting the need for ongoing monitoring to protect public health.

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

This study found that the RapidHIT™ ID system can successfully obtain DNA profiles from single hair roots, particularly those with high nuclei counts.

This study found that using trait prevalence-informed priors may improve the prediction accuracy of appearance traits in Bayesian models, but their application is limited by sparse knowledge on trait prevalence.

This study found that rhodamine B penetrated human hair fibers more effectively from an aqueous solution compared to a methanol/ethanol solvent, with penetration depending on hair morphology.

This in vitro study found that opiate diffusion was more pronounced in damaged hair fibers than in undamaged ones, with high opiate concentrations detected in fiber centerpieces.

This report describes two cases of gynecomastia linked to the use of Finasteride (Propecia®) for treating androgenetic alopecia, highlighting a rare but important side effect.

This article reviews the potential clinical use of anabolic steroids in treating muscle loss from chronic diseases and aging and highlights both the benefits and risks of these substances in sports.

In this study, heritability analyses in twins and siblings revealed that genetic factors predominantly influence hair diameter and curvature, with notable sex differences in their genetic impact.

This study found that a significant portion of counterfeit drugs seized among bodybuilders did not match their labels, with many containing undeclared anabolic steroids or other unexpected active ingredients.

This study suggests that cortisol measured in human hair can effectively reflect increased production for up to six months, but its retrospective accuracy may be limited due to rapid decline in levels.

This review discusses the use of anabolic-androgenic steroids in sports and outlines current methods for detecting urinary steroid doping, particularly testosterone, but reports no new experimental findings.

This review summarizes various effects of bergamot components on multiple health conditions in humans and animals but reports limitations in their use for stress and anxiety relief in aromatherapy.

This study found that metabolite levels in hair samples differ significantly by hair color and segment, leading to recommendations for best practices in hair metabolomic studies.

This study observed that ethyl glucuronide (EtG) concentrations in hair decreased significantly during an abstinent period, suggesting possible wash-out effects or other factors affecting EtG levels.

This study found that certain Y-chromosome alleles may influence susceptibility to prostate cancer among Iraqi males, suggesting potential genetic screening markers for the disease.

This study examined the hair structure of five Muridae species to provide insights into their distinct pelage characteristics.

This study found that certain tandem repeats predict darker hair color across diverse ancestry groups and can contribute to a polygenic score for hair color, independent of SNP variation.

This study demonstrated that cortisol, estradiol, and testosterone are preserved in archaeological human hair, allowing for the analysis of ancient stress and reproductive hormone patterns.

The document recommends a multidisciplinary approach and experience sharing to advance facial feminization surgery as a medical field.

This study found that specific Y-chromosome alleles may influence susceptibility to prostate cancer in Iraqi males, suggesting their potential use in screening for the disease.

This study introduced a novel, weakly supervised method for segmenting hair in Scanning Electron Microscope images using simple image-level annotations, achieving over 30% improvement in mean Hausdorff Distance compared to Unet and SAM, while enhancing interpretability and refinement.

This study investigated the hair of German shepherd dogs, revealing variations in color, shape, and band patterns across different body regions, while all hair types shared similar anatomical structures such as continuous, vacuolated medullas and cuticular scales with smooth or rippled margins.

This study shows that environmental contamination affects mummy hair, suggesting that using it to assess ancient people's health or nutrition should be approached cautiously.

This study identified significant differences in medullary structure, hair length, and root diameter among dorsal guard hairs of red foxes, golden jackals, and gray wolves in Turkey.

This review discusses genderqueer and non-binary identities and explores how mental health professionals can support these marginalized communities, but it reports no new findings.

This study suggests that while hair analysis using GC-MS is a sensitive method for detecting cocaine ingestion, it may not reliably indicate the amount, timing, or duration of drug use due to interindividual variability and multiple incorporation mechanisms.

This study found that a genetic test using 5 to 20 SNPs can predict male pattern baldness with variable accuracy in European men, especially those aged 50 and older.

This review discusses the potential dermatological applications of Dendrobium officinale polysaccharides, noting their hair growth promoting, skin moisturizing, and antioxidant effects, but reports no new clinical results.