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Understanding gene expression in hair follicles can reveal insights into hair growth and disorders.

Basal cell carcinoma mostly starts from cells in the upper skin layers, not hair follicle stem cells.

Certain proteins, Lgr5 and Lgr6, are important markers of adult stem cells and are involved in tissue repair and cancer development.

TRPA1 is crucial for mechanical sensitivity in skin sensory neurons.

Polymeric nanoparticles show promise for treating skin diseases.

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.

Laser hair removal is the most requested cosmetic procedure and has become a scientifically-based treatment suitable for all skin types.

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.

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

Understanding hair follicle anatomy helps diagnose hair disorders.

Eating disorders like anorexia and bulimia cause skin problems, and dermatologists can help detect these disorders early for better treatment outcomes.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Liposomes and niosomes improve finasteride delivery for hair loss treatment.

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.

New micelle solutions greatly improve skin delivery of certain antifungal drugs.

Antiandrogens affect androgen-dependent body functions and are used for various medical conditions, with some risks like fetus feminization, but new forms like 17α-propylmesterolone show promise for acne without systemic effects.

Prolactin affects hair growth cycles and can cause early hair follicle regression.

Wool follicles are complex, involving interactions between different cell types and structures.

Liposomes better deliver minoxidil for hair loss treatment than niosomes.

Skin development in mammals is controlled by key proteins and signals from underlying cells, involving stem cells for maintenance and repair.

Exosomes from dermal papilla cells help hair growth by making hair follicle stem cells multiply and change.

Stress can worsen skin conditions by affecting hormone levels and immune response.

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair treatments.

Nanoparticles can enter the skin, potentially causing toxicity, especially in damaged skin.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

RANK-RANKL signaling is essential for hair growth and skin health.

Insulin resistance contributes to hormone imbalances in many women with polycystic ovary syndrome.

High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.

Malassezia-associated dermatitis can cause itching in cats with feline paraneoplastic alopecia.