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Metformin helps manage polycystic ovary syndrome by improving insulin resistance and ovulation, but more research is needed on its full effects.

Stress stops hair growth in mice by causing early hair growth phase end and harmful inflammation through a specific nerve-related pathway.

Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

Some medicinal plants can help heal wounds and may lead to new treatments.

Myrtle has various health benefits and potential for medicine development.

Stress-related substance P may lead to hair loss and negatively affect hair growth.

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

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.

Male pattern baldness involves genetics, hormones, and needs better treatments.

Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.

Keratinocytes help heal skin wounds by interacting with immune cells and producing substances that kill pathogens.

Some viruses can cause cancer by changing cell processes and avoiding the immune system; vaccines and targeted treatments help reduce these cancers.

Sonic hedgehog signaling is crucial for hair growth and maintaining hair follicle identity.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

The conclusion is that PCOS is caused by ovarian sensitivity to hormones and disrupted hormone control, possibly due to ovarian factors, and more research is needed.

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

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

Male pattern baldness involves hormones and cell signals affecting hair growth.

Hibiscus plant extracts may have health benefits like lowering blood pressure and protecting the heart.

Modern lifestyles, including poor diet, stress, and long-term use of certain medications, hinder the body's ability to heal from inflammation, leading to chronic diseases.

Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.

People with PCOS, especially if obese, often have NAFLD, linked to obesity, insulin resistance, and high androgen levels.

Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.

Lignans and neolignans from plants may help protect against various health issues, including cancer and heart disease.

UV radiation can help sterilize wounds and promote healing but requires careful use to avoid damaging cells.

Activating TRPV3 stops human hair growth.

MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.