research Study on dissolution mechanism of cortisol and cortisone from hair matrix with liquid chromatography–tandem mass spectrometry
Cortisol and cortisone release from hair increases in steps over time during incubation.
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research Testosterone-like immunoreactivity in hair measured in minute sample amounts - a competitive radioimmunoassay with an adequate limit of detection
The new test can measure very small amounts of testosterone in hair, and grinding the hair up first gives more accurate results.
research Hair cortisol/cortisone in combined oral contraceptive users: An exploratory analysis
COC use doesn't increase hair stress hormone levels, but hair treatments may affect results.
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 Studying the Levels of Copeptin and Cortisol as a Stress Monitoring Biomarkers in the Patients with Alopecia Areata in Babylon Governorate
Copeptin and cortisol levels are higher in alopecia areata patients, suggesting they could help diagnose and manage the condition.
research The quantification of reproductive hormones in the hair of captive adult brown bears and their application as indicators of sex and reproductive state
Measuring reproductive hormones in brown bear hair could help identify their sex and reproductive state, but better collection methods or lab techniques are needed.
research Do follicles matter? Testing the effect of follicles on hair cortisol levels
Hair follicles increase hair cortisol levels, so consistent hair collection methods are important.
research The tail-tale of stress: an exploratory analysis of cortisol levels in the tail-hair of captive Asian elephants
Elephant tail-hair can show past stress levels, matching times when stressful events happened.
research Quantifying long-term stress in brown bears with the hair cortisol concentration: a biomarker that may be confounded by rapid changes in response to capture and handling
Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
research Time course of cortisol loss in hair segments under immersion in hot water
Hot water and UV exposure reduce hair cortisol levels, with the back of the head showing the most consistent levels.
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.
research Ketoconazole Therapy for Women with Acne and/or Hirsutism
Ketoconazole reduced hair growth and improved acne in women, but caused side effects needing careful monitoring.
research A randomized placebo-controlled study on the effects of pioglitazone on cortisol metabolism in polycystic ovary syndrome
Pioglitazone improved insulin sensitivity and altered cortisol metabolism in PCOS patients.
research Urinary steroids in women with androgenic alopecia
Women with hair loss had higher levels of certain hormones, suggesting a link to a condition like PCOS.
research Within-person changes of cortisol, dehydroepiandrosterone, testosterone, estradiol, and progesterone in hair across pregnancy, with comparison to a non-pregnant reference group
Hormone levels in hair change during pregnancy, with progesterone increasing significantly compared to non-pregnant women.
research Facial preservation following extreme mummification: Shrunken heads
Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.
research Differential relationships between chronic hormone profiles in pregnancy and maternal investment in rhesus monkey mothers with hair loss in the neonatal period
Monkeys with hair loss during pregnancy showed higher stress hormone levels and invested differently in their offspring.
research Coat color and other factors influencing hair cortisol concentration in domestic cats
Black hair in cats has higher cortisol levels than white hair.
research Investigating the role of obesity, circadian disturbances and lifestyle factors in people with schizophrenia and bipolar disorder: Study protocol for the SOMBER trial
The trial aims to understand how obesity and lifestyle affect circadian rhythms in people with schizophrenia and bipolar disorder.
research Parity-related variation in cortisol concentrations in hair during pregnancy and in the postpartum period: a prospective cohort study
First-time mothers had higher stress hormone levels in late pregnancy than mothers who had given birth before.
research Long-term physiological trends and their drivers: linking hair hormone concentrations with telemetry data in GPS-collared Serengeti wildebeest
Wildebeest stress and hormone levels are influenced by food availability, human presence, and reproductive cycles.
research Plasmaproteinbindung endogener Glucocorticosteroide und deren Einfluss auf Haar- und Speichelkonzentrationen
Plasma protein binding significantly affects glucocorticosteroid concentration in blood, saliva, and hair.
research Possible relationships between the physical conditions of cattle and the occurrence of structural modifications of their coat hair
Vitamin A deficiency changes cattle hair structure, while pregnancy may improve it, suggesting hair can indicate cattle health.
research Short communication: Factors affecting hair cortisol concentrations in lactating dairy cows
Tail switch hair is best for measuring cortisol in Holstein cows, with white hair and multiparous cows showing higher levels.
research Analysis of Hair Cortisol as an Indicator of Chronic Stress in Pigs in Two Different Farrowing Systems
Pigs in farrowing crates and loose-housing systems showed no difference in chronic stress levels as measured by hair cortisol.
research Hair Cortisol in Sheltered Cows and Its Association with Other Welfare Indicators
High hair cortisol levels indicate stress in cows due to poor shelter conditions and health issues.
research Comparison of methanol and isopropanol as wash solvents for determination of hair cortisol concentration in grizzly bears and polar bears
Methanol is better than isopropanol for washing grizzly bear hair to measure cortisol.
research Temporary Relocation during Rest Periods: Relocation Stress and Other Factors Influence Hair Cortisol Concentrations in Horses
Moving horses to new places can increase their stress levels, as shown by higher stress hormone in their hair.
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 Hair Cortisol as a Biomarker of Chronic Stress in Community-Dwelling Adults With Longstanding Multiple Sclerosis
Hair cortisol levels don't reliably indicate chronic stress in people with multiple sclerosis.