research How the Stress of Fight or Flight Turns Hair White
Stress turns hair white by depleting color-giving cells in hair follicles through a specific neurotransmitter related to the body's stress response.
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research Clinical and Epidemiological Characteristics and Associated Factors of Hair Graying: A Population-Based, Cross-Sectional Study in Turkey
Most people in Turkey start getting gray hair around 33 years old, with factors like age, education, hair loss, skin type, family history, and anxiety playing a role.
research Compendium of Polycystic Ovarian Syndrome and Its Relevance in Glycation and Diabetes
PCOS is linked to diabetes and insulin resistance, and managing AGEs may help treat related symptoms.
research Proteomic Analysis of Cultured Dermal Papilla, Dermal Sheath, and Dermal Fibroblast Cells from Female Scalp Highlights Alterations in the Cell Populations with Increasing Age
Protein analysis shows aging changes in scalp cell types from women.
research Tactile Innervation Densities Across the Whole Body
Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.
research Development and Homeostasis of the Sebaceous Gland
The document concludes that understanding the sebaceous gland's development and function is key to addressing related skin diseases and aging effects.
research Evaluation of Female Fertility: AMH and Ovarian Reserve Testing
AMH helps estimate ovarian reserve but doesn't predict pregnancy chances; age is more important.
research Current Evaluation of Amenorrhea
Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.
research A Random Study of Asian Male Androgenetic Alopecia in Bangkok, Thailand
Male pattern baldness affects 38.52% of Asian men in Bangkok, increasing with age and influenced by genes and environment.
research Normal and Aging Hair Biology and Structure: Aging and Hair
Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.
research Cause of Androgenic Alopecia
Male pattern baldness may be caused by scalp pressure on hair follicles, which increases with age and leads to a cycle of hair loss. This process is not directly determined by genes.
research Effectiveness of Ethinylestradiol/Chlormadinone Acetate in Treating Dermatological Conditions Related to High Androgen Levels
The oral contraceptive ethinylestradiol/chlormadinone acetate is effective in reducing acne and improving other skin conditions related to high androgen levels.
research Intrinsic Versus Extrinsic Aging: A Histopathological, Morphometric, and Immunohistochemical Study of Estrogen Receptor β and Androgen Receptor
The study concluded that both estrogen and androgen receptors, which decrease with age, are linked to skin aging and may be hormonally regulated.
research Isolation and Quantification of Glycosaminoglycans from Human Hair Shaft
Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.
research Effect of Flutamide and Two Novel Synthetic Steroids on GABA, Glutamine, and Some Oxidative Stress Markers in Rat Brain and Prostate
Flutamide and a new synthetic steroid affected brain and prostate chemicals and showed potential for treating androgen-related conditions and epilepsy.
research Clinical Snippets: Skin Surface Area, Skin Flap Therapy, Atopic Dermatitis Trials, Stevens-Johnson Syndrome Incidence, and Aging Skin Inflammation
Skin has a larger surface area than thought, certain skin cells improve skin flap survival, better trials for skin conditions in children are needed, Stevens-Johnson syndrome rates vary by age and race, and better skin barrier function may reduce inflammation in the elderly.
research A Random Study of Asian Male Androgenetic Alopecia in Bangkok, Thailand
Male pattern baldness affects 38.52% of Asian men in Bangkok, increasing with age and possibly linked to environment and diet.
research Diagnosis and Treatment of Polycystic Ovary Syndrome: An Endocrine Society Clinical Practice Guideline
The guideline suggests using specific criteria to diagnose PCOS, recommends various treatments for its symptoms, and advises screening for related health issues.
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 Gender Aspects in Skin Diseases
Men are more likely to get infectious skin diseases, while women are more prone to autoimmune and pigment-related skin conditions, influenced by biological and environmental factors.
research Current Evaluation of Amenorrhea
Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.
research Noninvasive Assessment of Donor Area in Patients with Androgenetic Alopecia Undergoing Hair Transplantation by Digital Imaging Technique
Digital imaging can effectively evaluate the donor area for hair transplants, showing variations in hair density and grouping by age and severity of hair loss.
research Interest of Biotrinine, a Mix of Nasturtium Officinale and Tropaeolum Majus Extracts, for Chronic Hair Loss Treatment
Biotrinine® may be an effective treatment for chronic hair loss.
research Timing of Expression of the Core Clock Gene Bmal1 Influences Its Effects on Aging and Survival
The timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.
research A New Look at the 5-Alpha-Reductase Inhibitor Finasteride
Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.
research Clock Genes, Hair Growth, and Aging
Circadian clock genes are important for hair growth and may affect aging-related hair loss and graying.
research Efficacy of an Agonist of α-MSH, the Palmitoyl Tetrapeptide-20, in Hair Pigmentation
Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
research Topical RT1640 Treatment Effectively Reverses Gray Hair and Stem Cell Loss in a Mouse Model of Radiation-Induced Canities
RT1640 treatment reverses gray hair and promotes hair growth in mice.
research Human Scalp Hair: Modulation by Various Factors and Hormones - Do Estrogens Inhibit or Stimulate? A Perplexing Perspective
The effects of estrogen on human scalp hair growth are unclear and need more research.
research 11β-Hydroxysteroid Dehydrogenase Type 1 Inhibition Attenuates the Adverse Effects of Glucocorticoids on Dermal Papilla Cells
Blocking 11β-HSD1 can lessen the harmful effects of glucocorticoids on hair growth cells.