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Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

Thymosin β4 promotes hair growth by activating stem cells in hair follicles.

A very low-calorie ketogenic diet is effective for quick weight loss and improving health in obese patients, with careful management of side effects and maintenance.

Antiandrogens affect androgen-dependent body functions and are used for various medical conditions, with some risks like fetus feminization, but new forms like 17α-propylmesterolone show promise for acne without systemic effects.

Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.

Notch/CSL signaling controls hair follicle differentiation through Wnt5a and FoxN1.

Ketoconazole shampoo improves hair growth and reduces oil similarly to minoxidil in male pattern hair loss.

Lower SHBG levels may increase the risk of PCOS.

Obesity increases the risk of developing polycystic ovary syndrome, and weight loss can improve the condition.

The document concludes that understanding the genes and pathways involved in hair growth is crucial for developing treatments for hair diseases.

Blocking β-catenin in skin cells improves hair growth during wound healing.

Human beard hair medulla contains a unique and complex mix of keratins not found in other human tissues.

MDP hydrogel heals wounds faster and better than other treatments in diabetic mice.

TCDD speeds up skin barrier formation by increasing certain gene expressions.

The article concludes that while we understand a lot about how melanocytes age and how this can prevent cancer, there are still unanswered questions about certain pathways and genes involved.

Circadian rhythms are crucial for stem cell function and tissue repair, and understanding them may improve aging and regeneration treatments.

Sponge helps heal wounds faster with less inflammation and better skin/hair growth.

Clomipramine may significantly reduce hair-pulling in Trichotillomania, but more research is needed on treatments and early onset cases.

Drosha and Dicer are essential for hair follicle health and preventing DNA damage in skin cells.

EGF and KGF signalling prevent hair follicle formation and promote skin cell development in mice.

COVID-19 can cause various skin lesions, which may result from the virus and immune response, and are not directly linked to illness severity.

New methods have greatly improved our understanding of stem cell behavior and roles in the body.

Amenorrhea is relatively rare and initial testing should check FSH, TSH, and prolactin levels.

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

E211 G>A gene linked to lower risk of severe prostate cancer and hair loss.

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

Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.

The dermal regeneration template is effective in skin regeneration, reducing scarring, and has potential for future improvements.

Hair grays due to oxidative stress and fewer functioning melanocytes.

Minoxidil foam enters hair follicles and skin for hair growth.