research Fractography of Human Hair
Moisture content significantly affects how human hair breaks.
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30 / 1000+ results research Age-Dependent Regulation by Androgens of Gene Expression in the Anterior Hypothalamus and Stress-Induced Release of Adrenal Hormones in Adolescent and Adult Male Rats
Testosterone affects stress hormone levels differently in adolescent and adult male rats.
research The Role of Interface Geometry and Appendages on the Mesoscale Mechanics of the Skin
Skin's uneven surface and hair follicles affect its stress and strain but don't change its overall strength, and help prevent the skin from peeling apart.
research Effect of Ethnicity and Treatments on In Situ Tensile Response and Morphological Changes of Human Hair Characterized by Atomic Force Microscopy
Different ethnicities and treatments affect human hair strength and structure.
research Genetics Of Stress Hormone Concentrations In Hair Of Healthy Nursery Pigs And Their Relationship With Back Test Responses
Pig hair cortisol levels are inheritable and linked to stress responses, which could help select for more resilient pigs.
research Sex Differences in the Hypothalamic–Pituitary–Adrenal Axis’ Response to Stress: An Important Role for Gonadal Hormones
Male and female bodies respond differently to stress, influenced by hormones and development stages, with implications for stress-related diseases.
research Honokiol Protects Skin Cells Against Inflammation, Collagenolysis, Apoptosis, and Senescence Caused by Cigarette Smoke Damage
Honokiol helps protect skin from damage and aging caused by cigarette smoke.
research Whole Genome Scan and Selection Signatures for Climate Adaptation in Yanbian Cattle
The CORT, FGF5, and CD36 genes are crucial for the cold weather adaptation of Yanbian cattle.
research Divergent Neuroactive Steroid Responses to Stress and Ethanol in Rat and Mouse Strains: Relevance for Human Studies
Stress and alcohol affect brain chemicals differently in rats, mice, and humans, influenced by genetic differences.
research Cortisol Levels in Blood and Hair of Unanesthetized Grizzly Bears (Ursus Arctos) Following Intravenous Cosyntropin Injection
Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
research Vitamin D Status Assessment: Lack of Correlation Between Serum and Hair 25-Hydroxycholecalciferol Levels in Healthy Young Adults
Vitamin D levels in hair don't match those in blood, so hair isn't a reliable indicator of Vitamin D status.
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 Hair Cortisol Concentrations in Medical Nurses During the COVID-19 Pandemic
Nurses had higher stress levels during intense phases of the COVID-19 pandemic.
research Children’s Hair Cortisol and Hair Testosterone Concentrations in Response to Environmental Changes: From Summer Holidays to School
Girls had higher stress hormone levels during school due to social and emotional issues, while boys had higher overall hormone levels with slight changes when school started.
research Is It Getting in the Hair? Cortisol Concentrations in Native, Regrown, and Segmented Hairs of Cattle and Pigs After Repeated ACTH Administrations
Hair cortisol is a reliable stress indicator in cattle but may not be valid for pigs.
research Parity-Related Variation in Cortisol Concentrations in Hair During Pregnancy and Postpartum: A Prospective Cohort Study
First-time mothers had higher stress hormone levels in late pregnancy than mothers who had given birth before.
research Association Between Stress and Bilateral Symmetrical Alopecia in Free-Ranging Formosan Macaques in Mt. Longevity, Taiwan
Stress is likely causing hair loss in Formosan macaques.
research Differences in Self-Reported Stress Versus Hair and Nail Cortisol Among Adolescent and Young Adult Males
Hair and nail cortisol levels can show long-term stress in young males.
research Quaternary Ammonium Iminofullerenes Improve Root Growth of Oxidative-Stress Maize Through ASA-GSH Cycle Modulating Redox Homeostasis of Roots and ROS-Mediated Root-Hair Elongation
Quaternary ammonium iminofullerenes help maize roots grow better under stress by reducing oxidative damage.
research Oxidative Stress in Follicular Units During Hair Transplantation Surgery
Adding more glutathione to the preservation solution doesn't reduce oxidative stress in hair transplants.
research Gamma-Aminobutyric Acid Promotes the Inhibition of Hair Growth Induced by Chronic Restraint Stress
GABA contributes to stress-related hair loss, and ginkgolide A may help treat it.
research Association Between Stress and Bilateral Symmetrical Alopecia in Free-Ranging Formosan Macaques in a High-Population-Density Area
Stress likely causes hair loss in Formosan macaques.
research Jasmonic Acid Regulates Plant Development and Orchestrates Stress Response During Tough Times
Jasmonic acid helps plants grow, defend against threats, and survive stressful conditions like drought and salt.
research Melatonin Protects Cochlear Hair Cells from Nicotine-Induced Injury Through Inhibiting Apoptosis, Inflammation, Oxidative Stress, and Endoplasmic Reticulum Stress
Melatonin may protect ear cells from damage caused by nicotine.
research Repurposing a Clinical Antimalarial for the Therapeutic Induction of Lethal ER Stress Targeting BRAF-Kinase Inhibitor-Resistant Malignant Melanoma
Mefloquine, an antimalarial drug, is effective in killing melanoma cells resistant to other treatments by causing lethal stress in the cells.
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 Pregnancy and Postpartum Maternal Hair Cortisol Are Associated With Infant Development During the COVID-19 Pandemic
Mothers with lower stress during pregnancy but higher stress after birth had infants with lower development scores.
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 Hair Steroid Concentration Before and After the Beginning of the COVID-19 Pandemic in Preschoolers: The Moderating Effect of Family Characteristics
The COVID-19 pandemic did not significantly change stress levels in preschoolers, but higher-income families' children showed higher stress.
research Chitosan Stimulates Root Hair Callose Deposition and Inhibits Root Hair Growth
Chitosan slows root hair growth and causes a buildup of callose at low concentrations, but at high concentrations, it only inhibits growth without callose buildup.