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Certain SHBG gene variants, like rs727428, are linked to higher testosterone levels in women with PCOS.

Sex hormones may affect COVID-19 severity, with estrogen possibly reducing risk and testosterone potentially increasing it.

Sex hormones and antiandrogens can either stimulate or inhibit human hair follicle cell growth depending on the dose.

Testosterone and dihydrotestosterone can slow down the growth of certain hair follicle cells.

Sex hormones, especially estradiol, can change chicken feather shapes and colors.

Testosterone affects blood pressure control and inflammation in male rats with endotoxic shock, and blocking certain hormones may help treat it.

Hormones affect skin aging, and treatments targeting hormonal balance may improve skin health.

Gender affects hair and scalp characteristics, with differences in hormone responses, graying patterns, and trace metals.

Androgenetic alopecia, or hair loss, is caused by a mix of genetics, hormones, and environment, where testosterone affects hair growth and causes hair to become smaller and grow for a shorter time.

Hair follicles and deer antlers regenerate similarly through stem cells and are influenced by hormones and growth factors.

Aging-related hormone changes affect voice quality, especially during puberty, menstruation, pregnancy, and menopause.

Hormones, especially testosterone and DHT, are key for penis development and function, and testosterone therapy may help with erectile dysfunction in those with low levels.

Human sebaceous glands contain enzymes that affect androgen production and may influence sebum production and acne.

Hair analysis can somewhat track past testosterone levels but is influenced by factors like hair washing, growth rate, sex, and hair color.

A new gene, JMJD1C, may affect testosterone levels in men.

Eating alfalfa sprouts every day can raise testosterone levels in middle-aged men, but broccoli sprouts don't have this effect.

Melatonin in a special emulsion can help treat hair loss more effectively.

Women with nonclassic 21-hydroxylase deficiency can have successful pregnancies through IVF, with certain factors affecting their chances.

Human skin produces sex hormones like estrogen and testosterone, influenced by ARO and StAR, which may affect skin elasticity and hair growth.

Most men seeking hair transplants have Male Pattern Baldness, influenced by genetics, age, and testosterone, while women's hair loss can be affected by thyroid function, iron, testosterone, prolactin, ferritin levels, and certain conditions. Follicular Unit Extraction is a popular hair transplant technique.

Cyproterone acetate is effective for treating hirsutism and acne in women by blocking androgens in the skin and also works as a contraceptive.

Finasteride and dutasteride may help prevent hair loss but could cause side effects like sexual dysfunction and psychological issues.

Hirsutism is excessive male-pattern hair growth mainly caused by ovarian hormones, and severe cases may require costly treatment with side effects.

Lowering testosterone speeds up wound healing in male mice.

Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.

The method accurately measures hormones and endocannabinoids in mice, showing gut microbiota diversity affects these levels and may influence stress and reproductive systems.

Androgens affect skin conditions like acne and hair loss through specific biochemical pathways.

Nanoliposomes loaded with saw palmetto extract could be good for treating hair loss.

Changes in skin bacteria can affect hair loss and new treatments targeting these bacteria may prevent balding without sexual side effects.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.