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Dutasteride more effective for hair growth, but has more side effects than finasteride.

Planarian regeneration begins with a specific gene activation caused by injury, essential for healing and tissue regrowth.

Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.

PGD2 stops hair growth and is higher in bald men with AGA.

Early diagnosis and treatment, using finasteride, minoxidil, or hair transplantation, improves hair loss outcomes.

Dermoscopy helps diagnose and manage alopecia areata by showing specific hair changes.

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

Fungi-produced compounds can change plant root growth.

Hair and wool have complex microscopic structures with microfibrils and varying cystine content.

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

Regulatory T-cells are important for healing and regenerating tissues in various organs by controlling immune responses and aiding stem cells.

Researchers found 19 genes important for root hair growth in a plant called Arabidopsis.

Special fiber materials boost the healing properties of certain stem cells.

Hair follicles significantly increase the speed and amount of caffeine absorbed through the skin.

The 2003 guidelines suggest that while some treatments can regrow hair in alopecia areata, none alter the disease's progression, and wigs may be the best option for extensive hair loss.

Alopecia areata involves immune activation in the scalp, suggesting treatments targeting TH1, TH2, and IL-23 pathways.

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

Isotretinoin is highly effective in treating severe acne, rosacea, and gram-negative folliculitis.

Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.

Epidermal stem cells are diverse and vary in activity, playing key roles in skin maintenance and repair.

Current treatments for alopecia show no significant long-term benefits.

Stem cell niches support, regulate, and coordinate stem cell functions.

The new "differential stripping" method effectively measures how much substance gets into hair follicles.

Telocytes might help with skin repair and regeneration.

Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

Accurate diagnosis and effective oral treatment are key to managing tinea capitis and preventing its spread.

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

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

Guidelines for diagnosing common hair loss include detailed history, clinical examination, and various diagnostic techniques.

Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.