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Melatonin is important for skin health and protection, and can be made by the skin or applied to it.

Pregnancy can cause various skin changes and diseases, with PUPPP being the most common skin condition specific to pregnancy.

A new microneedle patch made from hair proteins helps regrow hair faster and better than current treatments.

Hair follicle stem cells use specific chromatin changes to control their growth and differentiation.

The PDGF/PDGFR pathway is a potential drug target with mixed success in treating various diseases, including some cancers and fibrosis.

Regenerated fully functional hair follicles using stem cells, with potential for hair regrowth therapy.

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

Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.

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

Latanoprost can make eyelashes longer, thicker, and darker.

TGF-β is crucial for controlling stem cell behavior and changes in its signaling can lead to diseases like cancer.

The document concludes that adenosine receptor agonists have potential for treating various conditions, but only a few are approved due to challenges like side effects and the need for selective activation.

Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.

Keratose, derived from human hair, is a non-toxic biomaterial good for tissue regeneration and integrates well with body tissues.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

Vitamin D is important for skin health and may affect conditions like psoriasis and hair loss, but more research is needed to understand its role fully.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

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.

Low doses of some substances can be beneficial, while high doses can be harmful or toxic.

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

New targets for making and using brain-synthesized steroids could lead to better treatments for brain disorders and alcoholism.

Eclipta alba extract may help hair grow similarly to Minoxidil.

Terbinafine quickly builds up in skin and hair, staying effective for over 3 weeks.

Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.

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.

Rhodococcus equi causes severe pneumonia in young foals, and effective vaccines are needed due to foals' weak immune responses.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

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

New treatments targeting specific genes show promise for treating keratin disorders.