research Applications of Trace-Element and Stable-Isotope Geochemistry to Wildlife Issues, Yellowstone National Park and Vicinity
Geochemical methods help manage wildlife by revealing toxic elements and diet details in Yellowstone.
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330-360 / 1000+ resultsresearch 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.
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 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 Testosterone and doping control
The document concludes that better biomarkers are needed to detect long-term oral testosterone use in athletes.
research Facial preservation following extreme mummification: Shrunken heads
Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.
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 The 39th Manfred Donike workshop on doping analysis
The 39th Manfred Donike Workshop discussed methods for detecting misuse of steroids, gene doping, and the complexity of identifying drug residues in urine, highlighting the ongoing efforts to improve global anti-doping work.
research Sebocytes are the Key Regulators of Androgen Homeostasis in Human Skin
Sebocytes play a key role in controlling androgen levels in human skin.
research YOU ARE NOT WHAT YOU EAT DURING STRESS: AN ISOTOPIC EVALUATION OF HUMAN HAIR FROM BELLEVILLE, ONTARIO
Changes in δ¹⁵N values in hair can indicate stress or health issues.
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 Adsorption and Elution of Cadmium on Hair
Cadmium sticks to hair differently for each person, and strong acid can mostly remove it.
research Evaluation of permissible level of soluble I-131 containing fission products for design of protective measures in livestock industry
Cows can safely graze after a nuclear incident if iodine exposure is managed, as doses below 30 Gy don't harm them long-term.
research An investigation into the action of transglutaminase on human hair
Transglutaminase does not modify human hair.
research Inhibition of 5α-Reductase Activity in SZ95 Sebocytes and HaCaT Keratinocytes In Vitro
The substance MK386 effectively blocked testosterone conversion and reduced cell growth in certain skin cells, but inhibiting 5α-reductase alone may not greatly improve acne.
research Inverse androgenic alopecia
A man with a new type of male pattern hair loss that affects the back of the head responded well to common hair loss treatments.
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 Advances and Perspectives on Bioelectronic and Atomic Nanogenerators for Anticancer Therapy
Bioelectronic nanogenerators show promise for cancer treatment but need better understanding and development.
research A reflection on Fukushima nuclear disaster: View of Taiwan doctor
Public education on iodine use is crucial for radiation protection, especially for children.
research Multimodal Ion Beam Imaging to Correlate Elements and Metabolites at the Micron Scale Using Water Cluster Secondary Ion Mass Spectrometry and MeV Ion Beam Analysis
The method effectively images and correlates elements and metabolites in tissue samples at a micron scale.
research Quantitative analysis of finasteride tablets dissolution content with non-isotopically labeled internal standard by paper spray ionization mass spectrometry
PSI-MS quickly and accurately measures finasteride in tablets, helping with quality control.
research Topological Markers for Subcellular Chemical Mapping using TOF-SIMS
TOF-SIMS improved chemical mapping in cells, confirming gunshot residue, tracking anti-tumor drugs, and identifying molecules in mosquitoes and wounds.
research Fully automated chip-based nanoelectrospray ionization-mass spectrometry as an effective tool for rapid and high-throughput screening of 5α-reductase inhibitors
research Cover Image
research A rapid screening LC‐MS/MS method based on conventional HPLC pumps for the analysis of low molecular weight xenobiotics: application to doping control analysis
A quick method was developed to detect banned substances in urine for doping control.
research 144 Evaluation of contamination and quantification of drug penetrations studies using Quantitative Mass Spectrometry Imaging
QMSI effectively maps and quantifies drug distribution in skin tissues.
research Spurenelementkonzentration im Haar bei Patienten mit Schilddrüsenerkrankungen
Trace element levels in hair differ in people with thyroid diseases.
research 686 Evaluation of contamination and quantification of drug penetrations studies using Quantitative Mass Spectrometry Imaging
QMSI is a valuable method for studying drug penetration in skin tissues.
research Highly Sensitive Simultaneous Measurement of Steroid Hormone in Human Serum by Liquid Chromatography-electrospray Ionization Tandem Mass Spectrometry
A new method accurately measures nine steroid hormones in human serum with high sensitivity.
research A method for simultaneous analysis of androgens, dutasteride and finasteride in human serum by liquid chromatography tandem mass spectrometry
A new method was developed to analyze certain hormones and drugs in human blood efficiently.