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.
Search
for
Sort by
Research
870-900 / 1000+ resultsresearch Dynamic spatiotemporal coordination of neural stem cell fate decisions through local feedback in the adult vertebrate brain
Neural stem cells use local feedback to maintain balance in the adult brain.
research Expression Pattern of Cyclooxygenase-2 in Normal Rat Epidermis and Pilosebaceous Unit during Hair Cycle
COX-2 levels change during the hair cycle and affect skin and hair growth.
research Differential effects of caffeine on hair shaft elongation, matrix and outer root sheath keratinocyte proliferation, and transforming growth factor‐β2/insulin‐like growth factor‐1‐mediated regulation of the hair cycle in male and female human hair folliclesin vitro
Caffeine affects hair growth and health differently in men and women.
research Skin transcriptome reveals the Periodic changes in genes underlying hair follicle cycling in Cashmere goats
Cashmere goat hair growth follows a cycle with distinct growth, regression, and resting periods, influenced by specific genes.
research Melatonin Regulates the Periodic Growth of Cashmere by Upregulating the Expression of Wnt10b and β-catenin in Inner Mongolia Cashmere Goats
Melatonin makes cashmere grow earlier and more by increasing certain gene activity in goats.
research Variations in the optical scattering properties of skin in murine animal models
Male mice have thicker skin, causing more light scattering than females.
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 Curvilinear association between loneliness and hair cortisol concentrations in community-dwelling older adults at elevated cardiovascular risk
Loneliness affects cortisol levels in a non-linear way, with moderate loneliness linked to higher cortisol.
research Three-Dimensional Analysis of Cell Division Orientation in Epidermal Basal Layer Using Intravital Two-Photon Microscopy
Cell division orientation varies by body site and is linked to epidermal thickness and cell density.
research Heterogeneity of ornithine decarboxylase expression in 12-O-tetradecanoylphorbol-13-acetate-treated mouse skin and in epidermal tumors
ODC expression in mouse skin and tumors is varied and can be inhibited by retinoic acid or cycloheximide.
research Changes in hair chromium concentrations with increasing distances from hair roots
Hair chromium levels show past nutritional status, not environmental exposure.
research COVID-19: Understanding Inter-Individual Variability and Implications for Precision Medicine
The conclusion is that individual differences in COVID-19 severity are influenced by factors like age, sex, race, and genetics, which are important for personalized medicine.
research Modulation of Dermal Cell Activity During Hair Growth in the Rat
Dermal cell activity increases during hair growth in rats.
research Causal Relationship Between Sleep Characteristics and Alopecia Areata and Other Non-Scarring Alopecia: A Two-Sample Bidirectional Mendelian Randomization Analysis
Insomnia may increase alopecia areata risk, but more research is needed.
research Segmental analysis of human hair reveals intra-annual variation in 25(OH)D3 concentrations in modern and archaeological individuals
Hair analysis can show changes in vitamin D levels over time.
research Research on Expression of Retinoid-related Orphan Receptor (ROR) in the Skin of Cashmere Goat
RORs may influence cashmere growth cycles.
research Hormonal fluctuations under systemic stress: Investigating adolescent hair cortisol trends before and during the COVID-19 pandemic.
research LC-MS/MS-based reference intervals for hair cortisol in healthy children
Hair cortisol levels change with age, starting high at birth, decreasing until age 6, then rising to adult levels by age 18.
research Cells within the bulge region of mouse hair follicle transiently proliferate during early anagen: heterogeneity and functional differences of various hair cycles
Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.
research Electrophoretic variation of hair proteins.
Most people have similar hair protein patterns, but a rare variant was found in two women.
research Menstrual Cycle Alterations during Adolescence: Early Expression of Metabolic Syndrome and Polycystic Ovary Syndrome
Irregular menstrual cycles in teenagers are linked to a higher risk of polycystic ovary syndrome and metabolic syndrome.
research SEXUAL DIMORPHISM IN MAMMALS
Males and females differ in lifespan, growth, organ size, metabolism, and brain structure, with females generally living longer and maturing earlier.
research TU55. EXPLORING THE GENOMIC RELATIONSHIP BETWEEN TWO MAJOR DETERMINANT PHENOTYPES OF PSYCHIATRIC DISORDERS: HUMAN GUT MICROBIOME AND SLEEP TRAITS
The research explores how gut bacteria and sleep patterns are related in mental health disorders.
research Sleep quality in men with androgenetic alopecia
research Menstrual Cycle Disturbances at Reproductive Age
Menstrual cycles can be irregular for women of childbearing age.
research Regional Variation in Androgen Receptor Expression and Biomechanical Properties May Contribute to Cryptorchidism Susceptibility in the LE/orl Rat
Differences in androgen receptor expression and tissue properties may lead to higher cryptorchidism risk in certain rats.
research Differentiation stage-specific use of cap-independent and cap-dependent translation initiation in hematopoiesis
Low IRES/Cap translation is linked to higher stem cell potential.
research Seasonal and social correlates of changes in hair, skin, and scrotal condition in vervet monkeys (Cercopithecus aethiops) of Amboseli National Park, Kenya
Vervet monkeys show physical changes like hair loss and scrotal color changes due to stress or nutrition issues.
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.