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Fat tissue-derived cells show promise for repairing body tissues, but more research and regulation are needed for safe use.

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

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.

Middle-aged women with chronic telogen effluvium experience increased hair shedding but usually don't get significantly thinner hair.

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

Noggin is necessary to start the hair growth phase in skin after birth.

Calcium affects where root hairs grow, but other unknown factors determine their growth direction.

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

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

Hormone treatments in transsexual individuals reduce hair growth and oil production in male-to-females and increase them in female-to-males.

Women look young for their age due to larger lips, less sun damage, and genes that prevent gray hair and wrinkles.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

Lichen planus is a skin condition that can resolve on its own, is linked to hepatitis C, and increases the risk of skin cancer.

Methotrexate treats various disorders by inhibiting DNA synthesis, but careful monitoring is needed to avoid toxicity and manage side effects.

Male pattern baldness involves genetics, hormones, and needs better treatments.

Effective treatments for male pattern baldness include oral finasteride and topical minoxidil, while topical minoxidil is best for female pattern baldness.

Women with PCOS have overall higher body fat, not abnormal fat placement, and more insulin resistance.

Lupus affects the body and skin, causing joint pain and skin issues that can be treated with steroids and antimalarial drugs.

Comma hairs are a specific sign of tinea capitis when viewed with videodermatoscopy.

Too much androgen can cause hair loss; finasteride may help.

Finasteride treats enlarged prostate and hair loss, but may cause side effects in some patients.

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.

Diffuse alopecia in women may be related to androgens and iron deficiency, and basic hormone and nutrient screening is useful.

Minoxidil can cause skin allergy; use alternative solvents or treatments if allergic.

Estrogens help reduce skin aging, and SERMs might offer similar benefits without the risks of hormone therapy.

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

No effective treatment for frontal fibrosing alopecia was found, but oral 5-alpha-reductase inhibitors had the best response; for lichen planopilaris, topical corticosteroids were commonly used but had a high relapse rate.

Scientists turned rat thymus cells into stem cells that can help repair skin and hair.

Psoriasis skin changes are complex and might need several biopsies for a clear diagnosis.

New compounds were made that block an enzyme linked to breast cancer better than existing treatments.