53 citations,
February 2022 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” AMH helps estimate ovarian reserve but doesn't predict pregnancy chances; age is more important.
30 citations,
July 2004 in “Fertility and Sterility” 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.
26 citations,
September 2002 in “Dermatologic Surgery” Male pattern baldness affects 38.52% of Asian men in Bangkok, increasing with age and influenced by genes and environment.
20 citations,
January 2015 in “Current problems in dermatology” Hair gets thinner, grayer, and changes texture with age due to genetics, environment, and cellular changes, affecting the growth cycle.
17 citations,
October 2013 in “Plastic and reconstructive surgery. Global open” 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.
13 citations,
September 2011 in “American Journal of Clinical Dermatology” The oral contraceptive ethinylestradiol/chlormadinone acetate is effective in reducing acne and improving other skin conditions related to high androgen levels.
9 citations,
January 2016 in “Skin Pharmacology and Physiology” The study concluded that both estrogen and androgen receptors, which decrease with age, are linked to skin aging and may be hormonally regulated.
6 citations,
January 2016 in “Annals of Dermatology” Human hair contains more glycosaminoglycans in children than adults, and these compounds decrease with age, possibly affecting hair thickness.
2 citations,
January 2011 in “Andrologia” Flutamide and a new synthetic steroid affected brain and prostate chemicals and showed potential for treating androgen-related conditions and epilepsy.
June 2017 in “Experimental dermatology” 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.
September 2002 in “Dermatologic Surgery” Male pattern baldness affects 38.52% of Asian men in Bangkok, increasing with age and possibly linked to environment and diet.
1265 citations,
October 2013 in “The Journal of Clinical Endocrinology and Metabolism” The guideline suggests using specific criteria to diagnose PCOS, recommends various treatments for its symptoms, and advises screening for related health issues.
197 citations,
January 2019 in “Neuropsychopharmacology” Male and female bodies respond differently to stress, influenced by hormones and development stages, with implications for stress-related diseases.
48 citations,
April 2010 in “Journal of the European Academy of Dermatology and Venereology” 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.
21 citations,
September 2004 in “Fertility and Sterility” 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.
1 citations,
January 2017 in “International Journal of Dermoscopy” 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.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Biotrinine® may be an effective treatment for chronic hair loss.
137 citations,
March 2006 in “Cns Drug Reviews” Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.
55 citations,
March 2010 in “Aging” Circadian clock genes are important for hair growth and may affect aging-related hair loss and graying.
12 citations,
September 2018 in “International Journal of Cosmetic Science” Palmitoyl tetrapeptide-20 may help reduce hair greying and increase melanin production.
7 citations,
July 2020 in “Pigment cell & melanoma research” RT1640 treatment reverses gray hair and promotes hair growth in mice.
3 citations,
February 2019 in “Journal of Cosmetic Dermatology” The effects of estrogen on human scalp hair growth are unclear and need more research.
3 citations,
January 2017 in “Yonsei Medical Journal” Blocking 11β-HSD1 can lessen the harmful effects of glucocorticoids on hair growth cells.
89 citations,
January 2009 in “Advances in Clinical Chemistry” Fetal skin heals without scarring due to unique cells and processes not present in adult skin healing.
56 citations,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair follicle cells age faster and lose pigment due to less catalase, causing hair to turn gray.
33 citations,
August 2018 in “Facial Plastic Surgery Clinics of North America” The document explains hair biology, the causes of hair loss, and reviews various hair loss treatments.
5 citations,
January 2023 in “International Journal of Molecular Sciences” Hair follicles could be used to noninvasively monitor our body's internal clock and help identify risks for related diseases.
1 citations,
August 2021 in “Frontiers in Genetics” Certain genes related to sulfur metabolism are more active during the growth phase of Cashmere goat wool, and melatonin might help this process.
October 2023 in “FASEB bioAdvances” Akkermansia muciniphila may help prevent testosterone-related hair loss.
31 citations,
April 2019 in “Journal of Cutaneous Pathology” Hair becomes gray and thin as we age, and while most hair loss in older people is due to genetics, there's a chance for gray hair to regain color under certain conditions.