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The document concludes that alopecia has significant social and psychological effects, leading to a market for hair loss treatments.

Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.

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

The research found specific signs to diagnose alopecia areata incognito and noted patients generally regrow hair after steroid treatment.

Deleting the Far2 gene in mice causes sebaceous gland issues and patchy hair loss.

The document concludes that understanding how hair follicles naturally die and regenerate is important for insights into organ development and could impact health and disease treatment.

Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.

Nerve growth factor helps cashmere goat hair cells grow and is more active during the hair growth phase.

SOX2 is crucial for skin cell function and hair growth, and it plays a role in skin cancer and wound healing.

The Hairless gene is crucial for healthy skin and hair growth.

Mice treatments didn't grow hair, a patient treatment may affect immune response, and people with hair loss often feel anxious or depressed.

Early baldness in men may indicate risks for obesity, metabolic syndrome, insulin resistance, and heart disease, similar to women with PCOS. Alopecia areata is often linked with autoimmune diseases and mental health issues. Certain hair disorders are due to genetic issues, and chemotherapy can cause hair loss through specific biological pathways. Iron deficiency's link to hair loss is still disputed.

The absence of functional sebaceous glands causes hair follicle destruction and scarring alopecia.

Chemotherapy can cause permanent, non-reversible hair loss similar to pattern baldness.

Two teenage brothers had a rare, treatment-resistant form of female-pattern hair loss with unusual scalp changes.

PRGF treatment safely and effectively helps hair loss.

The study found that horizontal sections of scalp biopsies are better for analyzing hair loss, showing fewer hairs and more fine hairs in balding areas.

The gene Foxn1 is important for hair growth, and understanding it may lead to new alopecia treatments.

Understanding how melanocyte stem cells work could lead to new treatments for hair graying and skin pigmentation disorders.

Estrogen Receptor ß (ERß) is the main hormone controller in human skin and hair follicles, not Estrogen Receptor α (ERα) or the Androgen Receptor (AR).

Garlic can help hair grow by activating certain growth pathways, and it works whether you eat it or apply it to your scalp.

PRP is effective for treating hair loss, especially with other treatments.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

Melatonin affects mouse skin and may regulate skin functions.

The vitamin D receptor can act without its usual activating molecule, affecting hair growth and skin cancer, but its full range of actions is not well understood.

Skin's epithelial stem cells are crucial for repair and maintenance, and understanding them could improve treatments for skin problems.

Isotretinoin's effects and side effects, like birth defects and depression, might be due to it causing cell death in various cells.

FGF13 gene changes cause excessive hair growth in a rare condition.

Androgenetic alopecia, or hair loss, is caused by a mix of genetics, hormones, and environment, where testosterone affects hair growth and causes hair to become smaller and grow for a shorter time.

Current treatments for male pattern baldness include minoxidil and finasteride, with new options being developed.