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The model suggests that scalp tension could lead to hair loss, with factors like blood vessel hardening, enlarged oil glands, and poor microcirculation also playing a role. It also hints at a possible link between skull shape and baldness pattern.

Hormones, especially androgens, play a key role in causing acne, and treatments like hormone control pills and hormone-blocking medications can help.

Damaged hair follicle stem cells can cause permanent hair loss, but understanding their role could lead to new treatments.

The document concludes that effective acne treatment requires a personalized combination of therapies and long-term commitment, with retinoids being important for maintenance.

Hormones, especially androgens, play a big role in acne, but most acne sufferers don't have a hormone disorder. Hormonal treatments, including birth control pills, can be very effective for women whose acne doesn't improve with regular treatments.

Amenorrhea is when a woman doesn't have periods, with primary amenorrhea starting by age 15 or within five years of breast development, and secondary amenorrhea when periods stop for three months. It affects 3-4% of women not pregnant, breastfeeding, or in menopause, mainly due to polycystic ovary syndrome, hypothalamic amenorrhea, hyperprolactinemia, and ovarian failure.

Low birthweight and rapid weight gain after birth may increase the risk of developing polycystic ovary syndrome.

TCDD disrupts skin stem cells, causing skin issues like chloracne.

Testosterone is vital for male health, and its deficiency is linked to aging and common health issues.

The skin is a complex organ that protects the body, regulates temperature, and has roles in immunity, hormone function, and vitamin D metabolism.

Humans evolved to have less hair and more sweat glands than chimpanzees and macaques.

Eating high-glycemic foods and drinking milk may worsen acne by increasing insulin and IGF-1 levels.

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.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Acne is a chronic disease linked to various systemic conditions and has significant psychological and social effects.

Pregnancy often causes skin changes like darkening, stretch marks, and hair growth, which may improve after childbirth.

Women's ovarian hormones and adrenal androgens change throughout life, affecting hair loss and health.

High doses of norethindrone acetate in rats caused various organ changes but didn't significantly increase tumor rates.

Leydig cells can cause testosterone-secreting adrenal tumors in women.

Lack of Vitamin D receptor changes skin structure and increases certain immune cells in the skin.

Indian Hedgehog helps control skin cell growth and protects against aggressive skin cancer.

A vaccine may prevent benign prostatic hyperplasia (BPH).

Fat tissue and a specific protein are crucial for healthy hair growth and maintenance.

The testes produce important hormones like testosterone and others that play key roles in male body functions.

Markers CRABP1, Nestin, and Ephrin B2 are present in skin cancer environments and may influence their development.

New imaging techniques can assess and track changes in mouse acne without harm, aiding treatment choices.

Applying the anti-cancer drug Bortezomib to skin can promote hair growth and increase hair proteins through the GATA-3 factor.

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.

Topical antiandrogens might treat skin issues like hair growth, balding, and acne, but finding effective treatments without side effects is challenging.

New findings may help diagnose and understand scarring alopecia better.