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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.

Arachidonic acid helps hair grow by increasing growth factors and improving follicle health.

Loss of Fz6 disrupts hair follicle and associated structures' orientation.

Diagnosing hair loss disorders needs clinical, dermoscopic, and histological differences, and checking menstrual cycle, weight changes, drug therapy, and nail changes.

Certain microRNAs are more common in balding areas and might be involved in male pattern baldness.

Cell-based therapies show promise for treating Limbal Stem Cell Deficiency but need more research.

Smartphone-based teledermatology is effective for diagnosing skin diseases in the military with good accuracy.

Proteins from stem cells improved hair growth in patients with hair loss.

Researchers found that bulge cells from human hair can grow quickly in culture and have properties of hair follicle stem cells, which could be useful for skin treatments.

Endoglin is crucial for proper hair growth cycles and stem cell activation in mice.

Minoxidil helps treat severe high blood pressure.

The document concludes that understanding how adult stem and progenitor cells move is crucial for tissue repair and developing cell therapies.

Dermal papillae cells, important for hair growth, come from multiple cell lines and can be formed by skin cells, regardless of their origin or hair cycle phase. These cells rarely divide, but their ability to shape tissue may contribute to their efficiency in inducing hair growth.

Hair follicle bulge cells don't help skin regrow after glucocorticoid damage; interfollicular epidermis cells do.

Understanding hair follicle biology and stem cell control could lead to new hair loss treatments.

ILK is essential for proper hair follicle development and structure.

Hair growth and health are influenced by stress and hormones.

Scientists made skin stem cells from other human cells with over 97% efficiency, which could help treat skin conditions.

CD34 marks potential stem cells in dog hair follicles.

Amenorrhea, or the absence of periods, should be evaluated by age 15 or within five years of early breast development, and is most commonly caused by conditions like polycystic ovary syndrome and hypothalamic amenorrhea.

Most skin diseases in Hajjah, Yemen, were dermatitis, infections, and acne, influenced by local socioeconomic and environmental factors.

High energy boosts root hair growth in plants, while low energy stops it.

Hes1 protein is important for hair growth and regeneration, and could be a potential treatment for hair loss.

Angiogenin helps hair grow by stimulating cell growth and blood vessel formation.

Minoxidil lowers blood pressure and increases heart efficiency, but may raise lung artery pressure in some people.

Derma rollers show promise for skin improvement and drug delivery, but more research is needed on their safety and effectiveness.

Scientists have created a method to deliver specific cells that can regenerate hair follicles, potentially offering a new treatment for hair loss.

Dermal papilla cells are key for hair growth and could help us understand and treat hair loss.

Minoxidil slows down skin cell growth and may help treat scars and skin conditions.

Non-invasive methods show promise for diagnosing skin diseases like psoriasis and lupus but need more research for regular use.