research Incorporation of Isotopically Labeled Cocaine and Metabolites into Human Hair: Dose-Response Relationships
Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
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research Non-Classic Congenital Adrenal Hyperplasia Due to 21-Hydroxylase Deficiency Revisited: An Update with a Special Focus on Adolescent and Adult Women
The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.
research Androgen Profile Through Life in Women With Polycystic Ovary Syndrome: A Nordic Multicenter Collaboration Study
Women with PCOS have higher androgen levels that decrease with age but are still higher than in women without PCOS.
research High-Performance Liquid Chromatography–Diode Array and Electrospray-Mass Spectrometry Analysis of Non-Allowed Substances in Cosmetic Products for Preventing Hair Loss and Other Hormone-Dependent Skin Diseases
The method effectively identifies banned substances in hair loss and skin disease cosmetics.
research Phytochemical Analyses of Ziziphus Jujuba Mill. Var. Spinosa Seed by Ultrahigh Performance Liquid Chromatography-Tandem Mass Spectrometry and Gas Chromatography-Mass Spectrometry
The study found that Ziziphus jujuba seeds contain beneficial compounds for treating insomnia and anxiety and that the methods used are effective for assessing their quality.
research Proteomic Tools for the Investigation of Human Hair Structural Proteins and Evidence of Weakness Sites on Hair Keratin Coil Segments
Hair proteins have weak spots in their α-helical segments.
research Ultrastructural Alterations and Environmental Exposure Influence the Opiate Concentrations in Hair of Drug Addicts
Environmental factors can greatly reduce drug levels in hair.
research UHPLC/Q-TOFMS-Based Plasma Metabolomics of Polycystic Ovary Syndrome Patients With and Without Insulin Resistance
The research found different metabolism changes in PCOS patients and suggested new potential markers for diagnosing PCOS with or without insulin resistance.
research Distribution of Glycolipid and Unsaturated Fatty Acids in Human Hair
Human hair has more unsaturated fats inside than on the surface, and certain lipids may help bind the outer and inner layers together.
research Studies on the Persistence of Estradiol Benzoate and Nortestosterone Decanoate in Hair of Cattle Following Treatment with Growth Promoters, Determined by Ultra-High-Performance Liquid Chromatography–Tandem Mass Spectrometry
Detecting steroid esters in cattle hair is inconsistent and influenced by sampling factors.
research Management of Endocrine Disease: Hyperandrogenic States in Women - Pitfalls in Laboratory Diagnosis
Diagnosing hyperandrogenism in women is complex and requires accurate testing methods and consideration of SHBG levels.
research In Vivo Penetration of Bare and Lipid-Coated Silica Nanoparticles Across the Human Stratum Corneum
Lipid-coated silica nanoparticles penetrate human skin more deeply than bare silica nanoparticles.
research Long-Term Detection of Methyltestosterone Use by a Yeast Transactivation System
A yeast-based test can detect the steroid methyltestosterone in urine longer than traditional methods.
research New Biomarkers to Evaluate Hyperandrogenemic Women and Hypogonadal Men
The document concludes that hormonal biomarkers are key for diagnosing hyperandrogenemia in women and hypogonadism in men.
research Comparative Proteomic Analysis in Scar-Free Skin Regeneration in Acomys Cahirinus and Scarring Mus Musculus
The African spiny mouse heals skin without scarring due to different protein activity compared to the common house mouse, which heals with scarring.
research Ex-Vivo Measurement of Scalp Follicular Infundibulum Delivery of Zinc Pyrithione and Climbazole from an Anti-Dandruff Shampoo
The method shows that zinc pyrithione and climbazole from anti-dandruff shampoo effectively reach the scalp.
research Measurement of Steroid Hormones by Liquid Chromatography-Tandem Mass Spectrometry with Small Amounts of Hair
A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.
research Silver Oxide Based Nanoparticle Assisted Laser Desorption/Ionization Mass Spectrometry for the Detection of Low Molecular Weight Compounds
Silver oxide nanoparticles help detect small molecules effectively.
research Simultaneous Determination of Androgens and Prostaglandins in Human Urine Using Ultra-High-Performance Liquid Chromatography–Tandem Mass Spectrometry
Researchers developed a reliable way to measure hormones in urine, showing that a baldness treatment doesn't change hormone levels.
research Androgens in Women: Critical Evaluation of Methods for Their Determination in Diagnosing Endocrine Disorders
The conclusion is that standardizing testosterone measurement methods is essential for better diagnosis accuracy in women.
research In Vivo Evaluation of Eclipta Alba Extract as Anticancer and Multidrug Resistance Reversal Agent
Eclipta alba extract may work as an anticancer agent and help reverse drug resistance.
research Determination of 19 Steroid Hormones in Human Serum and Urine Using Liquid Chromatography-Tandem Mass Spectrometry
The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.
research Omics for Precious Rare Biosamples: Characterization of Ancient Human Hair by a Proteomic Approach
The study developed a method to analyze ancient hair proteins using very small samples.
research Forensic Chemical Study on Human Hair: Identification of Hair Spray and Hair Growth Promoter Brands by Components Remaining on Human Hair
Chemical analysis of hair products on human hair can help identify specific brands and link suspects to victims.
research Profiling Steroid and Thyroid Hormones with Hair Analysis in a Cohort of Women Aged 25 to 45 Years Old
The method can measure multiple hormones in women's hair and may help identify hormone-related health issues.
research Sex Hormones and Hair Loss in Men From the General Population of Northeastern Germany
Men's hair loss is not linked to their sex hormone levels, except for lower DHEAS in those with hair loss.
research Close Correlation Between Hyperandrogenism and Insulin Resistance in Women With Polycystic Ovary Syndrome Based on Liquid Chromatography With Tandem Mass Spectrometry Measurements
Women with PCOS who have high male hormone levels often also have insulin resistance.
research A Comprehensive Approach in Diagnosing Polycystic Ovary Syndrome
The document concludes that diagnosing PCOS requires a thorough approach, considering various symptoms and risks, and calls for improved methods to identify PCOS types and prevent diabetes.
research Active Anti-Alopecia Chemical Identification of Merremia Peltata Leaves and Computational Study Toward Androgen Receptor Using Molecular Docking and Molecular Dynamic Simulation
Merremia peltata leaf extract, particularly the bufotalinin compound, shows potential for treating hair loss.
research Measuring Steroids in Hair Opens Up Possibilities to Identify Congenital Adrenal Hyperplasia in Developing Countries
Hair steroid measurement is an effective method to diagnose and monitor CAH in developing countries.