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Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

Air pollution worsens skin diseases and aging by causing inflammation and oxidative stress.

The conclusion is that using drugs to block the TOR pathway might slow aging and prevent age-related diseases.

The modified Ferriman-Gallwey method is a useful tool for diagnosing hirsutism.

Chemicals and body size might change when puberty starts and progresses, but more research is needed to confirm this.

The Endocrine Society advised against routine testosterone therapy for women, citing a need for more research on long-term safety and a clear definition of androgen deficiency.

Removing part of the vitamin D receptor stops vitamin D from working properly.

Chemotherapy can cause various skin reactions, with hair loss being the most common, and proper diagnosis and treatment of these reactions are important.

Zinc oxide nanoparticles in sunscreen do not penetrate deep into the skin.

New nanofiber technology improves wound healing by supporting cell growth and delivering treatments directly to the wound.

Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.

Mutations in the SRD5A3 gene cause a new type of glycosylation disorder by blocking the production of a molecule necessary for protein glycosylation.

Growing human skin cells in a 3D environment can stimulate new hair growth.

Teriflunomide helps reduce multiple sclerosis symptoms and is safe for most patients.

The immune system plays a key role in tissue repair, affecting both healing quality and regenerative ability.

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

The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.

Insulin resistance is a key factor in polycystic ovary syndrome, but genetics may also contribute.

TGF-β is crucial for tissue repair and can cause diseases if not properly regulated.

Hair loss and aging are caused by the breakdown of a key protein in hair stem cells.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

A protein from certain immune cells is key for new hair growth after skin injury in mice.

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.

Creating stronger blockers for skin enzymes might lead to better treatment for conditions like acne and excessive hair growth.

PCOS is caused by both genetics and environmental factors like diet and obesity.

AGA causes hair loss by shrinking hair follicles due to DHT binding, and can be treated with finasteride and minoxidil.

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

The conclusion is that proper signaling is crucial for hair growth and development, and errors can lead to cancer or hair loss.

Some patients taking finasteride or dutasteride may have ongoing sexual problems and depression even after stopping the medication.

Insulin resistance and obesity are key factors in the development and worsening of polycystic ovary syndrome, and lifestyle changes are important for managing it.