research Hair Analysis: Assessment of Homemade Hair Treatment Effects on Drug Concentrations in the Keratin Matrix
Homemade hair treatments can significantly lower drug levels in hair, possibly causing false-negative drug tests.
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research Assessment of Multidimensional Health Care Parameters for Developing a Virtual Human Generative Model: A Cross-Sectional Study in Japan
The study aims to create a model to predict health attributes using diverse health data from Japanese adults.
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 A Quantitative Ultra-Performance Liquid Chromatography High-Resolution Mass Spectrometry Analysis of Steroids from Human Scalp Hair
The method can measure multiple steroids in human hair to study long-term steroid metabolism, especially in newborns and children.
research Liquid Chromatography-Mass Spectrometry Based Isotopic Abundance Ratio Analysis of the Consciousness Energy Healing Treated L-Cysteine
Energy healing treatment improved L-cysteine's stability, solubility, bioavailability, and shelf-life.
research LC/MS Analysis of Stratum Corneum Lipids: Ceramide Profiling and Discovery
A new, quick method was developed to analyze skin lipids, discovering a new ceramide subclass.
research Bioequivalence Study of Finasteride
Finasteride's two formulations absorb similarly, showing bioequivalence.
research The Role of Melatonin in Neuroectodermal-Mesodermal Interactions: The Hair Follicle Synthesizes Melatonin and Expresses Functional Melatonin Receptors
Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.
research Proton Affinitive Derivatization for Highly Sensitive Determination of Testosterone and Dihydrotestosterone in Saliva Samples by LC-ESI-MS/MS
Using 5-butylpicolinate esters improves the sensitivity and reliability of detecting testosterone and dihydrotestosterone in saliva.
research Sex Steroid Synthesis in Human Skin In Situ: The Roles of Aromatase and Steroidogenic Acute Regulatory Protein in the Homeostasis of Human Skin
Human skin produces sex hormones like estrogen and testosterone, influenced by ARO and StAR, which may affect skin elasticity and hair growth.
research Expression of Steroidogenic Enzymes in Human Sebaceous Glands
Human sebaceous glands contain enzymes that affect androgen production and may influence sebum production and acne.
research Non-Invasive Biomonitoring of Infant Exposure to Environmental Organic Pollutants in North-Western Spain Based on Hair Analysis: Identification of Potential Sources
Hair analysis shows infants and mothers in north-western Spain are exposed to environmental pollutants, with factors like diet and residence affecting pollutant levels.
research Cidea Control of Lipid Storage and Secretion in Mouse and Human Sebaceous Glands
Cidea is essential for proper lipid storage and secretion in sebaceous glands, affecting skin and hair health.
research Human Exposure to Heavy Metals Over the Last 100 Years
People today have lower levels of arsenic, lead, cadmium, and iron in their hair than people did 100 years ago.
research Revisiting Hyper- and Hypo-Androgenism by Tandem Mass Spectrometry
The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.
research Picogram Determination of Finasteride in Human Plasma and Semen by High-Performance Liquid Chromatography with Atmospheric-Pressure Chemical-Ionization Tandem Mass Spectrometry
Method detects finasteride in plasma and semen with high sensitivity and accuracy.
research Determination of Vitamin B3 Vitamer (Nicotinamide) and Vitamin B6 Vitamers in Human Hair Using LC-MS/MS
The method can measure vitamin B3 levels in human hair accurately.
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 Hair Growth Promotion Effect of Cedrol Cream and Its Dermatopharmacokinetics
Cedrol cream is more effective and safe for promoting hair growth than traditional treatments.
research Prostaglandin D2 Inhibits Hair Growth and Is Elevated in Bald Scalp of Men with Androgenetic Alopecia
PGD2 stops hair growth and is higher in bald men with AGA.
research Corticosterone Inhibits GAS6 to Govern Hair Follicle Stem-Cell Quiescence
Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.
research Normal Fur Development and Sebum Production Depend on Fatty Acid 2-Hydroxylase Expression in Sebaceous Glands
FA2H is essential for normal fur and sebum production in mice.
research Three-Dimensional Proteome-Wide Scale Screening for the 5-Alpha Reductase Inhibitor Finasteride: Identification of a Novel Off-Target
Finasteride may affect PNMT, causing side effects.
research Influence of Saw Palmetto and Pygeum Africana Extracts on the Urinary Concentrations of Endogenous Anabolic Steroids: Relevance to Doping Analysis
Taking Saw palmetto and Pygeum africana can change the levels of certain steroids in urine, which could cause confusion in doping tests.
research In Vitro Evaluation of Nerium Oleander Leaf Extract Against Sarcoptes Scabiei Var. Cuniculi Mite Isolated from Naturally Infested Rabbits
Nerium oleander leaf extract effectively kills scabies mites in rabbits.
research Hair Elemental Status as a Diagnostic Parameter: Achievements, Challenges, and Opportunities
Analyzing hair for its elemental makeup can be useful for diagnosis, but there are still challenges and room for improvement.
research Guava Leaf Extract as Bioactive Substances for Anti-Androgen and Antioxidant Activities
Guava leaf extract may help treat hair loss and protect cells by blocking certain genes and fighting damaging molecules.
research Autologous Platelet and Extracellular Vesicle-Rich Plasma as Therapeutic Fluid: A Review
Autologous Platelet and Extracellular Vesicle-Rich Plasma (PVRP) has potential in enhancing tissue regeneration and improving hair conditions, but its effectiveness varies due to individual differences.
research Topical Delivery of Tofacitinib in Dermatology: The Promise of a Novel Therapeutic Class Using Biodegradable Dendritic Polyglycerol Sulfates
A new carrier improves skin delivery of tofacitinib for treating inflammatory skin diseases.
research Adsorption of Diclofenac and PFBS on a Hair Keratin Dimer
Human hair keratin might be good for filtering out harmful substances from water.