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Male androgenetic alopecia (MAA) is a common, hereditary hair loss condition in men, linked to heart disease, and can be treated with minoxidil, finasteride, or hair transplantation.

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.

Chemotherapy often causes hair loss, which usually grows back within 3 to 6 months, but there's no effective treatment to prevent it.

The 2015 Hair Research Congress concluded that stem cells, maraviroc, and simvastatin could potentially treat Alopecia Areata, topical minoxidil, finasteride, and steroids could treat Frontal Fibrosing Alopecia, and PTGDR2 antagonists could also treat alopecia. They also found that low-level light therapy could help with hair loss, a robotic device could assist in hair extraction, and nutrition could aid hair growth. They suggested that Alopecia Areata is an inflammatory disorder, not a single disease, indicating a need for personalized treatments.

EGF controls hair growth by regulating hair follicles' growth phases.

Over 50% of women over 50 experience hair loss, with minoxidil being the only proven effective treatment.

Timing of light therapy affects horse coat growth, with photoperiod being crucial.

Female pattern hair loss treatments vary in effectiveness and may have side effects.

Most people worried about abnormal hair loss actually have psychological issues like depression or anxiety.

Minoxidil 2% and 5% are common treatments for female pattern hair loss, with other options including anti-androgens, oral contraceptives, and hair transplantation.

Topical minoxidil is the best-supported treatment for female hair loss, but personalized plans are needed.

Bimatoprost 0.01% effectively and safely improves eyebrow growth.

Higher SHBG levels are linked to less severe hair loss in women, but vitamin D levels don't seem to affect hair loss.

Betamethasone is more effective for hair regrowth than latanoprost but has more side effects.

Melatonin receptors in hair follicles help regulate hair growth and could treat hair loss.

Cells from balding scalps have more androgen receptors than cells from non-balding scalps.

Male yak hair growth is influenced by DHT synthesis, which is promoted by 5α-red1 and AR during growth phases, while E2 may inhibit growth through ERα.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Estrogen and its receptors play a key role in hair growth, with differences between males and females.

Mice without Vitamin D receptors have hair growth problems because of issues in the hedgehog signaling pathway.

Cinnamic acid may help hair grow by activating oxytocin receptors.

Rat hair follicle stem cells have functional oxytocin receptors, useful for studying neuropsychiatric disorders.

Blue light promotes hair growth by interacting with specific receptors in hair follicles.

Thyroid hormone receptor β1 is found in human hair follicles and helps them survive.

Increasing ABC transporters in hair follicles may prevent chemotherapy-induced hair loss.

STAT3 signaling is important for healthy skin and hair follicles, and its disruption can lead to skin conditions like atopic dermatitis.

Melatonin directly affects mouse hair follicles and may influence hair growth.

The document concludes that understanding hair follicle biology can lead to better hair loss treatments.

Androgens have complex effects on hair growth, promoting it in some areas but causing hair loss in others, and our understanding of this is still evolving.