research Investigation of a non-invasive method of assessing the equine circadian clock using hair follicle cells
RNA from horse hair follicles can track circadian rhythms non-invasively.
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30 / 1000+ results research Detectability of oxandrolone, metandienone, clostebol and dehydrochloromethyltestosterone in urine after transdermal application
Transdermal exposure to certain steroids can be detected in urine for up to 14 days.
research An out-of-lab trial: a case example for the effect of intensive exercise on rhythms of human clock gene expression
Intense exercise at night can delay the body's internal clock gene expression by 2 to 4 hours.
research Effects of bright light exposure during daytime on peripheral clock gene expression in humans
Bright light during the day doesn't change most human clock genes but may slightly increase Rev-erb-ß.
research Metabolic study of androsta-1,4,6-triene-3,17-dione in horses using liquid chromatography/high resolution mass spectrometry
The study found that urine metabolites M1b or M4 are the best indicators of ATD use in horses, with detection possible up to 77 hours in urine and 28 hours in blood.
research Development of an improved method to estimate the days of continuous drug ingestion, based on the micro‐segmental hair analysis
Researchers improved a method to more accurately estimate when and how long a drug was taken using hair analysis.
research Rhythmic expression of circadian clock genes in human leukocytes and beard hair follicle cells
Human leukocytes and beard hair follicle cells have internal daily clocks, and PER1 and PER3 genes may indicate individual circadian rhythms.
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 High resolution full scan liquid chromatography mass spectrometry comprehensive screening in sports antidoping urine analysis
The method effectively detects banned substances in urine for sports antidoping.
research Evaluation of short-term hair follicle storage conditions for maintenance of RNA integrity
Hair follicles can be kept in RNAlater® at cool or room temperature for a week without harming RNA quality.
research Evaluation of short-term hair follicle storage conditions for maintenance of RNA integrity
Horse hair follicles can be stored at cool or room temperature for a week without losing RNA quality.
research (Un)targeted Scanning of Locks of Hair for Drugs of Abuse by Direct Analysis in Real Time–High-Resolution Mass Spectrometry
A new method can quickly and accurately detect drugs in hair.
research Human long-term deregulated circadian rhythm alters regenerative properties of skin and hair precursor cells
Disrupted sleep patterns can harm skin and hair cell renewal, but melatonin might help.
research Simultaneous determination of 30 hormones illegally added to anti-ageing functional foods using UPLC-MS/MS coupled with SPE clean-up
New method effectively detects illegal hormones in anti-aging foods.
research Analysis of metabolic characteristics of epristeride in zebrafish based on LC-Q-TOF MS and its potential applications in doping control
Epristeride's metabolism in zebrafish helps improve doping detection methods.
research The Price Waterhouse Guide to Financial Management: Tools for Improving Performance
A new method can quickly detect alcohol abuse by analyzing hair in under an hour.
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 Estimation methods for human circadian phase by use of peripheral tissues
New method uses hair follicle cells to estimate human body clock phase, potentially improving sleep disorder diagnosis.
research The Ecology of Human Sleep (EcoSleep) Project: Protocol for a longitudinal cohort repeated-measurement-burst study to assess the relationship between sleep determinants and sleep outcomes under real-world conditions across time of year
The study aims to understand how mood, physical activity, light exposure, and seasonal changes affect sleep patterns.
research The Opioid Receptor Influences Circadian Rhythms in Human Keratinocytes through the β-Arrestin Pathway
Delta-opioid receptors affect skin cell circadian rhythms, possibly impacting wound healing and cancer.
research Diurnal Preference Predicts Phase Differences in Expression of Human Peripheral Circadian Clock Genes
An individual's morning or evening preference can predict changes in their body clock gene expression.
research Optimization of LC method for the determination of testosterone and epitestosterone in urine samples in view of biomedical studies and anti-doping research studies
Researchers developed a reliable method to measure testosterone and epitestosterone in urine for medical and anti-doping use.
research Different localizations of drugs simultaneously administered in a strand of hair by micro‐segmental analysis
Drugs localize differently in hair strands based on their properties.
research 566 DermaCult™ Keratinocyte Expansion Medium, a Serum- and BPE-free Medium Supporting Long-term Feeder-free Expansion of Primary Human Epidermal and Pluripotent Stem Cell-Derived Keratinocytes
DermaCult™ Keratinocyte Expansion Medium allows human skin cells to grow longer while keeping their ability to develop properly.
research Micro-segmental analysis of the entry pathway and distribution of zolpidem in hair from different scalp regions after a single dose
Zolpidem shows up in hair from the top back of the head after one dose and fades over time, suggesting it gets into hair through blood and sweat.
research Culture of human dental pulp cells at variable times post-tooth extraction
Dental pulp cells can be successfully cultured up to 5 hours after tooth extraction.
research Screening and confirmation methods of the major urinary metabolite of finasteride–carboxy-finasteride by liquid chromatography–mass spectrometry and liquid chromatography–tandem mass spectrometry
New methods can detect finasteride's major urinary metabolite in urine for up to 49 hours.
research Eupafolin nanoparticles protect HaCaT keratinocytes from particulate matter-induced inflammation and oxidative stress
Eupafolin nanoparticles help protect skin cells from damage caused by air pollution.
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 Peripheral Skin Temperature and Circadian Biological Clock in Shift Nurses after a Day off
Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.