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

Hormonal changes and psychological issues can cause sexual dysfunction in postmenopausal women. Behavioral therapy is recommended first, with hormone replacement helping some symptoms but not libido. Testosterone can improve libido, but its effects on overall sexual function are unclear. Emotional and relationship issues should be addressed before using medication, and the benefits and risks of testosterone supplementation should be considered.

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.

The document concludes that mouse models are crucial for studying hair biology and that all mutant mice may have hair growth abnormalities that require detailed analysis to identify.

Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.

In Japan, sex reassignment surgery for gender identity disorder faces challenges and needs better medical support and education.

Goat skin changes with the seasons due to genes affected by daylight and hormones.

Women with type 1 diabetes often have polycystic ovary syndrome and excess male hormones, which are frequently undiagnosed.

Skin stem cells maintain and repair the outer layer of skin, with some types being essential for healing wounds.

Quercetin may help with PCOS symptoms, but more research is needed.

Mutations in certain receptors can cause diseases and offer new treatment options.

The model showed that randomness accurately describes individual hair growth cycles and that synchronization can cause large fluctuations not seen in humans.

Hydrogel microcapsules help create cells that boost hair growth.

Different stem cells are key for hair growth and health, and understanding their regulation could help treat hair loss.

The effects of estrogen on human scalp hair growth are unclear and need more research.

Eating high-glycemic and dairy foods can increase hormones that may cause acne and other health issues.

Keratinocytes and adipose-derived stem cells can effectively heal difficult skin wounds.

Hair follicle development in cashmere goats involves dynamic changes in proteins and metabolites, with key roles for oxytocin, MAPK, and Ca2+ pathways.

Exosomes from hair papilla cells and the Chinese medicine Liao Tuo Fang can potentially promote hair growth and could be used to develop hair growth drugs.

Transgender patients in critical care need better-trained medical staff and specific guidelines.

Fasting in hens affects thyroid hormones, which regulate feather and hair growth.

Changes in gut bacteria can contribute to the development of Polycystic Ovary Syndrome (PCOS), affecting metabolism, immunity, and causing inflammation. Treatments may involve adjusting these factors.

Mutations in the glucocorticoid receptor gene cause reduced sensitivity to glucocorticoids and may lead to poor response to treatment.

ERULUS controls root hair growth by regulating cell wall composition and pectin activity.

Testosterone's effects on COVID-19 are unclear and need more research.

Type 3 5α-reductase is more common and finasteride and dutasteride strongly inhibit it.

The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.

Foxi3 expression in developing teeth and hair is controlled by the ectodysplasin pathway.

The document concludes that hair loss is complex, affects many people, has limited treatments, and requires more research on its causes and psychological impact.

Hormonal therapies are effective for managing hair and skin symptoms in women with PCOS.