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Testosterone is important for men's sexual function, may help some women's sexual desire, while other hormones and neurotransmitters also play complex roles in sexual behavior.

Most women referred for excess male hormone symptoms had polycystic ovary syndrome (PCOS), with other conditions being less common.

The study found that in Latin America, ancestry varies by location, influences physical traits, and affects how people perceive their own heritage.

Lgr5 is a marker for active, self-renewing stem cells in the intestine and skin, important for tissue maintenance.

Human skin makes sexual hormones that affect hair growth, skin health, and healing; too much can cause acne and hair loss, while treatments can manage these conditions.

Certain proteins, Lgr5 and Lgr6, are important markers of adult stem cells and are involved in tissue repair and cancer development.

Chemotherapy can cause various skin reactions, with hair loss being the most common, and proper diagnosis and treatment of these reactions are important.

The guidelines advise against using testosterone and DHEA in women for most conditions due to safety and effectiveness concerns, but suggest considering testosterone for postmenopausal women with low sexual desire.

Wnt1/βcatenin signaling is crucial for heart repair after injury.

Dermoscopy is a useful tool for identifying features of skin conditions, but more research is needed to define its role in dermatology.

Tofacitinib is effective and safe for severe hair loss, but full regrowth is less likely after 10 years of hair loss.

JAK inhibitors are effective in treating various immune-related diseases, not just rheumatoid arthritis.

Tofacitinib is safe and effective for severe alopecia areata, but hair loss may return 2 months after stopping treatment.

Adding anti-Müllerian hormone to PCOS criteria lowers the number of women diagnosed.

Planarian regeneration begins with a specific gene activation caused by injury, essential for healing and tissue regrowth.

Minoxidil and finasteride treat hair loss in men, while minoxidil treats hair loss in women.

Stem cells help heal skin wounds by moving and changing roles, working with other cells, and needing more research on their activation and behavior.

Artificial skin development has challenges, but new materials and understanding cell behavior could improve tissue repair. Also, certain growth factors and hydrogel technology show promise for advanced skin replacement therapies.

Ruxolitinib effectively regrows hair in most patients with severe hair loss.

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

Men are more likely to have severe COVID-19 cases and fatalities than women due to factors like lifestyle, aging, and biological differences.

Some treatments can help with a hair loss condition called alopecia areata, but none ensure lasting results; choices depend on the person, with JAK inhibitors showing promise for severe cases.

New effective scar treatments are urgently needed due to the current options' limited success.

Jumonji genes are important for development and their mutations can cause abnormalities, especially in the heart and brain.

Chemotherapy can cause skin problems like hair loss, mouth sores, and skin darkening, and recognizing these can affect treatment decisions.

Epidermal stem cells are diverse and vary in activity, playing key roles in skin maintenance and repair.

Low-Level Laser Therapy is effective and safe for hair growth with minimal side effects.

Stem cell niches support, regulate, and coordinate stem cell functions.

Blocking JAK-STAT signaling can lead to hair growth.

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