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Alopecia areata is an autoimmune condition causing hair loss due to the immune system attacking hair follicles, often influenced by genetics and stress.

Wnt ligands are crucial for hair growth and repair.

Hormone treatments for transgender individuals generally improve mental health and physical transition, with some health risks that require medical supervision.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Latanoprost can make eyelashes longer, thicker, and darker.

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

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

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

Caffeine in cosmetics may reduce cellulite, protect skin, and stimulate hair growth, but more research is needed on its use and effects.

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

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

Cancer cells often have more copies of TERT and TERC genes, which helps them grow and could affect patient outcomes.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Modern science supports the use of some Ayurvedic plants for health, as ancient practices suggested.

Eating less sugar, milk, and saturated fats and more vegetables and fish may help treat and prevent acne.

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.

Exosomes could potentially enhance tissue repair and regeneration with lower rejection risk and easier production than live cell therapies.

The document concludes that specific cells are essential for hair growth and more research is needed to understand how to maintain their hair-inducing properties.

Nanoparticles can improve skin drug delivery but have challenges like toxicity and stability that need more research.

Probiotic bacteria improved skin and hair health in aged mice.

The conclusion is that FFA and LPP have similar scalp biopsy features, making them hard to distinguish histologically, and FFA may be a specific kind of scarring hair loss.

Fat cells in the skin help start healing and form important repair cells after injury.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

TRP channels in the skin are important for sensation and health, and targeting them could help treat skin disorders.

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

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.