research Testosterone Analysis in Hair
The method shows hair testosterone levels reflect those in saliva, but are affected by various factors and may indicate a risk for heart attack.
Search
for
Sort by
Research
750-780 / 1000+ results research Sphingolipid Metabolites Profiling in Hair Growth
DHCer levels in hair could be a biomarker for alopecia progression.
research Identification of human hair follicle antigens targeted in the presumptive autoimmune hair follicle disorder alopecia areata and their potential functional relevance in vitro : methods development for isolation and identification of alopecia areata-relevant human hair follicle antigens using a proteomics approach and their functional assessment using an ex vivo hair follicle organ culture model
Alopecia areata may be caused by antibodies targeting specific hair follicle proteins, hindering hair growth.
research Фармакогностичне вивчення видів родини Achillea L.
Yarrow essential oil promotes healing and hair growth.
research Analysis of sequential hair segments reflects changes in the metabolome across the trimesters of pregnancy
Hair analysis can reveal metabolic changes and potential pregnancy complications.
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 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.
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 HPLC-ESI-MSn characterization of phenolic compounds, terpenoid saponins, and other minor compounds in Bituminaria bituminosa
Researchers found over 40 compounds in Bituminaria bituminosa, including many flavonoids and some with potential for medical and hair care uses.
research A new label-free screen for steroid 5α-reductase inhibitors using LC-MS
Researchers developed a new method to find substances in herbs that can block a specific enzyme linked to hair loss.
research Long-term detection of methyltestosterone (ab-) use by a yeast transactivation system
A yeast-based test can detect the steroid methyltestosterone in urine longer than traditional methods.
research Design and Validation of a Sensitive Multisteroid LC-MS/MS Assay for the Routine Clinical Use: One-Step Sample Preparation with Phospholipid Removal and Comparison to Immunoassays
The new LC-MS/MS method is more accurate and reliable than traditional immunoassays for measuring steroids in serum.
research GC–MS profiling and in silico prediction of MAPK receptor activation by fatty acids of watercress oil for hair growth marketed in Saudi Arabia
Watercress oil may promote hair growth by activating specific receptors.
research A Non-Invasive Hair Test to Determine Vitamin D3 Levels
The hair test for vitamin D could be a useful alternative to blood tests, providing a longer-term vitamin D status, but more research is needed.
research Simultaneous determination of multi-class active pharmaceutical ingredients by UHPLC-HRMS
A new method was developed to accurately detect and measure 47 different drug ingredients in various products.
research Rosemary essential oil by hydrodistillation: SPME-GC-MS characterization
Rosemary essential oil is rich in terpenes and can be effectively extracted and analyzed using environmentally friendly methods, benefiting local economies.
research In vitro and in silico evaluation of toxicological and anti-proliferative activity in phytochemical compounds of several solvent extracts from Zaleya pentandra L
Zaleya pentandra extracts, especially acetone, may be useful for new medicines and food industry applications.
research Human Scalp Hair Follicles Express Prostaglandin E2 Lipid Mediator and Receptors For Pge2
Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.
research Determination of Exemestane in Human Plasma by LC-MS-MS
The method effectively showed that the two exemestane preparations are bioequivalent.
research Testing for GHB in Hair by GC/MS/MS after a Single Exposure. Application to Document Sexual Assault
Hair testing can detect a single GHB exposure, useful for documenting sexual assault.
research Determinants of hair cortisol and hair cortisone concentrations in adults
Hair cortisol and cortisone levels increase with age, are higher in diabetics, vary by gender, decrease with frequent hair washing, and are lower in winter.
research LC‐MS/MS‐based method for long‐term steroid profiling in human scalp hair
A new method accurately measures long-term steroid levels in human hair.
research Incorporation of Isotopically Labeled Cocaine and Metabolites into Human Hair: 1. Dose-Response Relationships
Hair analysis can detect cocaine use but doesn't accurately show the amount or timing of use.
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 GC-MS determination of steroids related to androgen biosynthesis in human hair with pentafluorophenyldimethylsilyl–trimethylsilyl derivatisation
The method accurately measures certain steroids in human hair, showing different levels in males and females.
research Sex Steroids, Precursors, and Metabolite Deficiencies in Men With Isolated Hypogonadotropic Hypogonadism and Panhypopituitarism: A GCMS-Based Comparative Study
Men with isolated hypogonadotropic hypogonadism have partial steroid deficiencies, while those with panhypopituitarism have severe deficiencies.
research Ceramide binding to African–American hair fibre correlates with resistance to hair breakage
Ceramide helps protect African–American hair from breakage.
research Detection of testosterone propionate administration in horse hair samples
Hair analysis can detect testosterone in horses after drug administration.
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 Segmental Hair Analysis for 11-Nor- 9-Tetrahydrocannabinol-9-Carboxylic Acid and the Patterns of Cannabis Use
THCCOOH levels in hair decrease from root to tip and don't match well with self-reported cannabis use.