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Hair follicles on the scalp interact with and respond to the nervous system, influencing their own behavior and growth.

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.

Ketoconazole shampoo with finasteride improves hair density in men with hair loss.

The protein Par3 is crucial for healthy skin, affecting the skin barrier, cell differentiation, and stem cell maintenance.

Genes linked to fibrosis are more active in people with central centrifugal cicatricial alopecia.

Changing light exposure can affect hair growth timing in goats, possibly due to a key gene, CSDC2.

Blocking the FGF5 gene in sheep leads to more fine wool and active hair follicles due to changes in certain cell signaling pathways.

Microneedling is a safe and effective way to improve various skin conditions with minimal side effects.

New acne treatments show promise as alternatives to traditional therapies.

Topical cetirizine improves hair density and thickness in androgenetic alopecia, but more research is needed.

Minoxidil may help prevent capsular opacification after cataract surgery.

Mesenchymal stromal cells may help treat severe COVID-19, but more research is needed to confirm their effectiveness.

Low-dose oral minoxidil improves hair growth in male hair loss.

Polydeoxyribonucleotide (PDRN) may help lighten skin and treat hyperpigmentation.

Vitamin D boosts a specific gene activity in kidney cells that could improve heart and kidney function.

No strong genetic link to other skin conditions was found, but some genetic factors may make people more likely to get seborrheic dermatitis.

Sebaceous glands in our skin, developing during pregnancy and active in puberty, produce sebum for skin lubrication, temperature control, and fighting germs, also help in hormone regulation, and their dysfunction can cause conditions like acne and hair loss.

Researchers created a lab model to study human hair growth, showing it can grow and self-regulate outside the body.

Platelet-rich plasma is tolerable for lichen planopilaris and doesn't worsen the condition, but its effectiveness is unclear.

Platelet-rich plasma therapy could be an effective treatment for melasma with minimal side effects.

The conclusion suggests a new way to classify bradykinin-mediated angio-oedema based on different causes and its possible link with urticaria, which could improve diagnosis and treatment.

A substance called compound-1 could help increase hair growth by maintaining prostaglandin levels in hair follicles.

Created large amounts of grape seed compounds using a new method.

Transplanted baby mouse skin cells grew normal hair using a new, efficient method.

The document concludes that hair loss in cats is caused by various factors, including allergies, mites, infections, and hormonal issues, with treatments varying accordingly.

ChatGPT can be a helpful dermatology resource but should not replace professional consultations.

UV radiation damages hair by creating holes and peeling cuticle layers.

Skin health and diseases are closely linked to metabolic processes.

Finasteride affects frog testes by increasing testosterone, decreasing 5α-DHT, and impacting genes related to reproduction and other functions.

Children with autoimmune gastritis showed improved intestinal health over time and should be checked for other autoimmune conditions.