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Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.

The timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.

Future hair loss treatments should aim to extend hair growth, reactivate resting follicles, reverse shrinkage, and possibly create new follicles, with gene therapy showing promise.

Mice lacking the PPARγ gene in their fat cells had almost no fat tissue, severe metabolic problems, and abnormal development of other fat-related tissues.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.

Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.

Women with PCOS are more likely to have impaired glucose tolerance and type 2 diabetes, especially if they are Asian or obese.

Oestrogens are key for bone growth during puberty in both boys and girls.

Wnt ligands are crucial for hair growth and repair.

Platelet-rich plasma with a new carrier significantly increases hair thickness without serious side effects.

Scientists made working salivary glands in mice using bioengineered cells, which could help treat dry mouth.

Latanoprost can make eyelashes longer, thicker, and darker.

Androgens can cause hair growth in some areas and hair loss on the scalp.

About 2.2% of women with symptoms of high male hormones have a mild form of congenital adrenal hyperplasia, and measuring a specific hormone level can accurately diagnose it.

Cathepsin L is essential for normal hair growth and development.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Estrogen replacement can improve skin health in menopausal women but doesn't reverse sun damage or prevent hair loss.

The drug IPI-926 is safe at 160 mg daily and may help treat certain tumors, especially basal cell carcinoma.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

Testosterone's muscle-building effects do not require its conversion to DHT.

Minoxidil can help grow hair in mice by making cells grow and improving hair quality. More research needed.

Finasteride and minoxidil are effective for hair regrowth, while treatments for alopecia areata have varying success and continuous treatment is necessary.

The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.

The research identified various cell types in mouse and human teeth, which could help in developing dental regenerative treatments.

FGF signaling is a promising target for developing treatments for wounds, metabolic diseases, and cancer.

The document concludes that better biomarkers are needed to detect long-term oral testosterone use in athletes.

Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.

Scientists created stem cells that can grow hair and skin.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.