research Growth pattern and turnover of carbon and nitrogen measured by stable isotope ratios in the hair of sika deer (Cervus nippon)
Shoulder guard hair best shows sika deer's diet.
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30 / 1000+ results research Growth pattern and turnover of carbon and nitrogen measured by stable isotope ratios in the hair of sika deer ( Cervus nippon )
Sika deer shoulder hair is good for analysis.
research Characteristics of stable isotope signature of diet in tissues of captive Japanese macaques as revealed by controlled feeding
More research is needed to understand how diet affects isotope signatures in Japanese macaque tissues.
research High-resolution stable isotope profiles of modern elephant (Loxodonta africana) tusk dentin and tail hair from Kenya: Implications for identifying seasonal variability in climate, ecology, and diet in ancient proboscideans
Elephant tusks and hair reveal seasonal diet and climate changes.
research The influence of sulfur and hair growth on stable isotope diet estimates for grizzly bears
Sulfur slightly improved diet estimates for grizzly bears, but hair growth timing varied, affecting results.
research Herding Practices in the Keriya Valley (Xinjiang, China) During the Bronze and Iron Ages Using Stable Isotopic Analysis of Animal Hair
Ancient herders in the Keriya Valley fed their animals mainly C3 plants, with some C4 plant feeding possibly due to herd movement or seasonal changes.
research Stable C and N isotope analysis of hair suggest undernourishment as a factor in the death of a mummified girl from late 19th century San Francisco, CA
The mummified girl likely died from undernourishment and illness.
research Stable isotope analyses of carbon and nitrogen in hair keratin of suspected man-eating wolves from 1880s
The wolves suspected of man-eating in the 1880s likely ate very little human flesh and mostly consumed a diet similar to herbivores and omnivores.
research Simultaneous quantitation of nine hydroxy-androgens and their conjugates in human serum by stable isotope dilution liquid chromatography electrospray ionization tandem mass spectrometry
A new method accurately measures nine specific hormones in human blood.
research Production rates of testosterone and of dihydrotestosterone in female pattern hair loss
Women with female-pattern baldness produce more testosterone, but 5a-reductase inhibition treatment won't help.
research Testosterone and doping control
The document concludes that better biomarkers are needed to detect long-term oral testosterone use in athletes.
research Matrix matching in quantitative bioanalysis by LC–MS/MS a dream or a reality?
Accurate quantitative bioanalysis using LC-MS/MS is challenging due to matrix effects, but using internal standards and new methods like in-sample calibration could improve results.
research Reconstructing temporal variation in great ape and other primate diets: A methodological framework for isotope analyses in hair
Stable isotope analysis of hair helps study primate diets over time non-invasively.
research Nitrogen and carbon isotope signatures in cattle hair
Cattle hair isotope analysis can reveal diet and farm system characteristics.
research Urinary Androgens Provide Additional Evidence Related to Metabolism and Are Correlated With Serum Androgens in Girls
The research found that measuring androgens in urine can give extra information about body metabolism and is linked to androgen levels in the blood, especially in young girls.
research Epitestosterone
Epitestosterone may counteract testosterone's effects and has roles in body processes like prostate growth and hair distribution.
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 Improving stable isotopic interpretations made from human hair through reduction of growth cycle error
The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.
research An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of 5-alpha-dihydrotestosterone in human serum and plasma
The procedure accurately measures 5-alpha-dihydrotestosterone in blood, useful for standard tests.
research An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of dehydroepiandrosterone sulfate in human serum and plasma
A new method accurately measures DHEAS in blood, improving on current tests.
research Isotopic Abundance Ratio Analysis of the Consciousness Energy Healing Treated Flutamide using LC-MS and GC-MS Spectrometry
Energy healing treatment improved flutamide's solubility and stability, potentially enhancing its effectiveness for prostate cancer.
research Solid state NMR of isotope labelled murine fur: a powerful tool to study atomic level keratin structure and treatment effects
Solid-state NMR can effectively study keratin structure and treatment effects in fur.
research Chemical Mechanism of the Covalent Modification of 5.alpha.-Reductases by Finasteride as Probed by Secondary Tritium Isotope Effects
Finasteride modifies 5-alpha-reductases through a two-step process, affecting inhibitor potency and possibly causing side effects.
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 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 Biochemical Roles of Testosterone and Epitestosterone to 5α-Reductase as Indicators of Male-Pattern Baldness
High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.
research Targeted Determination of Residual Sex Hormones in Cosmetics Using Magnetic Solid-Phase Extraction with Isotope-Labeled Internal Standards by UHPLC-MS/MS
A new method effectively detects trace sex hormones in cosmetics, ensuring safety.
research Single hair analysis by X-ray fluorescence spectrometry detects small changes in dietary zinc intake: A nested randomized controlled trial
Hair analysis can detect small changes in dietary zinc intake.
research Male pattern baldness and the risk of prostate cancer
Men who experienced baldness at age 20 may have double the risk of getting prostate cancer.
research Preparation and characterization of dutasteride-loaded nanostructured lipid carriers coated with stearic acid-chitosan oligomer for topical delivery
The new dutasteride formula can be applied to the skin, may promote hair growth, and has fewer side effects.