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Testosterone with or without finasteride doesn't improve thinking skills in older men with low testosterone.

The document concludes that accurate measurement of serum androgens is crucial for diagnosing hyperandrogenism.

Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.

Blocking the virus's entry into cells by targeting certain pathways could lead to early COVID-19 treatments.

Muscles and nerves that cause goosebumps also help control hair growth.

Mutations in Gasdermin A3 cause skin inflammation and hair loss by disrupting mitochondria.

The document concludes that proper diagnosis and FDA-approved treatments for different types of hair loss exist, but treatments for severe cases often fail and future improvements may focus on hair follicle stem cells.

Hormonal treatments can help with acne but are not the first choice due to side effects and the need for careful patient selection.

Hormones, especially androgens, play a key role in acne, which can be a symptom of systemic diseases like PCOS and may require targeted treatment.

The conclusion is that certain scalp tissue changes are characteristic of lichen planopilaris, with mucinous perifollicular fibroplasia being a new feature for diagnosis.

Chemotherapy often causes skin, nail, and hair side effects, significantly impacting quality of life.

Mesenchymal stem cells show potential for skin healing and anti-aging, but more research is needed for safe use, especially regarding stem cells from induced pluripotent sources.

Dermal Papilla cells are a promising tool for evaluating hair growth treatments.

Women with PCOS often have skin problems like excessive hair, acne, hair loss, and dark patches, which can be treated with hormonal and non-hormonal therapies.

Cells in hair follicles help create fat cells in the skin by releasing a protein called Sonic Hedgehog.

Beta-sitosterol has potential health benefits but needs more research to fully understand its effects and improve its use in treatments.

Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.

Hair grays due to oxidative stress and fewer functioning melanocytes.

Minoxidil and finasteride are effective for male hair loss, minoxidil for female hair loss, and various treatments like corticosteroids work for alopecia areata; treatment should be tailored to the individual.

Both vitiligo and alopecia areata involve an immune response triggered by stress and specific genes, with treatments targeting this pathway showing potential.

Some heart drugs show promise for other conditions, but more research is needed to confirm their effectiveness and safety.

Lasers and light sources can effectively remove hair, work best on fair skin with dark hair, and usually need multiple treatments.

Some treatments, like corticosteroids and sensitizing agents, can help with alopecia areata, but more high-quality research is needed.

Niosomes are promising for skin drug delivery, offering benefits like improved drug penetration and stability.

The protein folliculin, involved in a rare disease, works with another protein to control how cells stick together and their organization, and changes in this interaction can lead to disease symptoms.

The conclusion is that recognizing hair growth cycles can improve the precision of dietary and health assessments from hair analysis.

TRH stimulates human hair growth and extends the hair growth phase.

A protein called CBP is found in prostate cancer and can increase the effectiveness of certain prostate cancer treatments.

Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.

Alopecia areata can cause unpredictable hair loss, and treatments like corticosteroids and minoxidil may help but have varying side effects.