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Different types of polycystic ovary syndrome (PCOS) have varying severity, with Type I being the most severe and common.

Aging causes skin stem cells to work less effectively.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Too much androgen can cause hair loss; finasteride may help.

The document concludes that a better understanding of cell changes during wound healing could improve treatments for chronic wounds and other conditions.

RNAi-based biopesticides could be safe and effective for pest control with careful development and risk assessment.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

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

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Matriptase is crucial for keeping epithelial tissues healthy and functioning properly.

Horizontally sectioned scalp biopsies are more reliable for diagnosing hair loss in women when three samples are taken instead of one.

Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.

Exosomes could potentially enhance tissue repair and regeneration with lower rejection risk and easier production than live cell therapies.

Human dermal fibroblasts are the main cells targeted by a virus that can cause a deadly skin cancer, and a certain inhibitor can effectively block this infection.

TGF-β signaling is crucial for stem cell maintenance, differentiation, and has implications for cancer treatment.

The document concludes that specific cells are essential for hair growth and more research is needed to understand how to maintain their hair-inducing properties.

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.

Nanoparticles can improve skin drug delivery but have challenges like toxicity and stability that need more research.

The conclusion is that Treg-targeted therapies have potential, but more knowledge of Treg biology is needed for effective treatments, including for cancer.

Silver nanoparticles coated with substances like PEG showed strong antibacterial effects and improved wound healing when used in hydrogels.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Hibiscus rosa-sinensis leaf extract helps hair grow longer and faster.

Surgeons must understand the full care process for gender confirmation surgery to help transgender individuals effectively.

Oxidative stress contributes to hair graying and loss as we age.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Cepharanthine is a well-tolerated drug with multiple medical uses, including anti-inflammatory and anti-cancer properties.

Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.

Janus kinase inhibitors are promising treatments for autoimmune skin diseases like eczema and psoriasis.