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Most men's multi-hair follicles naturally stand perpendicular to a line from the top of their head, which is important for natural-looking hair transplants.

Melatonin receptor genes likely play an important role in the development of goose feather follicles.

Hair extensions can cause hair loss and scalp damage, and these problems might be more common than people realize.

Scientists found a new, less invasive way to get stem cells from horse hair for veterinary medicine.

Potassium channel openers like minoxidil help hair grow by acting on hair follicles.

Gambogic Amide helps maintain hair color and promotes hair growth.

Lasers can reduce hair growth but may also damage skin.

sFRP4 partially inhibits hair regeneration, but the study needs clearer data analysis and better explanation of the process.

Dutasteride and finasteride can change hair growth genes, helping treat hair loss.

Alopecia causes smaller hair follicles and affects growth-related structures.

SV40 T antigen in hair follicles causes abnormal hair and health issues in mice.

Dr. Vogel improved hair restoration by reducing and recycling hair plugs, achieving a more natural look and a 50-80% survival rate for replanted follicles. He emphasized understanding natural hair loss patterns, educating patients about alopecia, and refusing to operate on those who don't understand these aesthetics.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

Particles around 100 nm can penetrate and stay in hair follicles without passing through healthy skin, making them safe for use in topical products and useful for targeted drug delivery.

Ruby laser pulses best destroy hair follicles during the growth phase and effectiveness varies with laser intensity; melanin is key for targeting, and timing treatments can improve results.

Smaller nanoemulsions can penetrate skin and hair follicles better, which may be useful for delivering drugs and vaccines through the skin.

The study identified and characterized new keratin genes linked to hair follicles and epithelial tissues.

SDF-1/CXCL12 and its receptor CXCR4 are crucial for melanocyte movement in mouse hair follicles.

Current and future treatments for alopecia areata focus on immunosuppression, immunomodulation, and protecting hair follicles.

Researchers developed a model that shows hair follicles increase skin absorption of caffeine by 20%.

Tiny particles carrying roxithromycin can effectively target and deliver the drug to hair follicles without irritation.

Dilated follicular infundibula and increased catagen/telogen follicles are key indicators for diagnosing alopecia areata.

Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.

Partial hair follicle extraction can effectively double the number of hair follicles for transplants, with most surviving and growing normally after a year.

Alopecia areata causes hair loss due to an immune attack on hair follicles, influenced by genetics and environment.

Hair follicles are smaller in people with androgenetic alopecia compared to those with normal scalps.

Ultrasound increases skin permeability but blocks hair follicles.

Melatonin receptors in hair follicles help regulate hair growth and could treat hair loss.

Applying heat with certain chemicals can greatly improve how well isotretinoin gets into the skin through hair follicles.

Fetal hair follicles have melanocytes with melanosomes at different stages, which are broken down into pigment particles in keratinocytes.