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Dermoscopy can help diagnose tinea capitis in children by looking for comma hairs, black dots, and broken hairs with white bands.

The guide explains how to diagnose and treat hair loss in dogs, covering causes and treatments, with some conditions lacking treatment options.

Low-dose acitretin helps nail psoriasis, stem cells may treat scarring alopecia, Chinese men have lower baldness rates, lateral foldplasty is good for ingrown toenails, hair diameter helps diagnose female baldness, childhood trauma linked to alopecia areata, certain hair-weaving leads to scalp conditions in African American women, and new methods for hair research and understanding hair and sweat gland development were introduced.

Hair and nail conditions can stabilize or improve over time, and new treatments show promise.

The woman has a scalp condition causing hair loss.

The dog had sebaceous adenitis, treated with ciclosporin, leading to some hair regrowth.

Bovines can have rare inherited skin diseases with specific symptoms like hair loss, fragile skin, and abnormal porphyrin buildup.

Congenital triangular alopecia is a harmless, non-spreading hair loss condition often seen in young children.

Using platelet-rich plasma in hair restoration surgery significantly improves hair density after 6 months and is safe to use.

After skin injury, adult mice can grow new hair follicles, and this process can be increased or stopped by manipulating Wnt signals.

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.

Dermoscopy is a useful tool for identifying features of skin conditions, but more research is needed to define its role in dermatology.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

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.

The hedgehog signaling pathway is crucial for hair growth but not for the initial creation of hair follicles.

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

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

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

Some people with pattern hair loss may also have scalp inflammation and scarring similar to lichen planopilaris.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Cathepsin L is essential for normal hair growth and development.

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.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

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.

Folliculitis decalvans is a rare scalp condition causing scarring hair loss, treated with long-term antibiotics and other medications, but it often comes back and is hard to manage.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.

Thymosin β4 promotes hair growth by activating stem cells in hair follicles.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.