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Men using hair loss drugs like finasteride may experience sexual side effects like erectile dysfunction, but it's unclear who will be affected and when. Treating depression and sexual symptoms is suggested, as these men often have higher rates of both. More research is needed to understand why these side effects occur.

Nail stem cells and Wnt signaling are important for fingertip regeneration but not sufficient for regenerating more complex limb structures.

Finasteride reduces testosterone conversion, progesterone lessens this, and levamisole enhances finasteride's effect.

Selective breeding caused the unique curly hair in Mangalitza pigs.

Finasteride helps reduce heart enlargement in heart failure patients.

A baby's toe was severely damaged by a hair tourniquet, leading to bone and tendon damage, but improved after surgery and treatment.

Angora goat hair grows faster and produces more protein than cashmere goat hair, and certain hormones and nutrients positively affect hair growth and protein synthesis.

Pressure from surgical headrests can cause temporary hair loss in liver donors.

A boy with toxic shock syndrome had severe heart rhythm problems but recovered with treatment.

Syphilis patients showed abnormal hair root changes, with no difference between primary and secondary stages.

Minoxidil lowers blood pressure without worsening lung pressure but can cause increased hair growth.

Aging skin shows thinner layers, fewer hair follicles, and new biomarkers like increased space between cells and smaller sebaceous glands.

Activin B helps start and grow hair follicles in mice.

The hair test for vitamin D could be a useful alternative to blood tests, providing a longer-term vitamin D status, but more research is needed.

Cocaine impairs male sexual behavior and alters testosterone metabolism in the brain.

Higher epinephrine concentration and specific injection sites increase scalp vasoconstriction time.

Stopping tamsulosin one month before cataract surgery reduces eye surgery complications in rats.

As skin ages, it gets thinner, paler, and more wrinkled, and protection and care like sunblock and moisturizers are important.

The health of the gut may be important in developing new ways to prevent, diagnose, and treat alopecia areata.

The document concludes that successful surgical repair of scalp and forehead issues requires careful planning and various techniques depending on the injury or defect size.

The procedure is effective for reducing the forehead despite potential for visible scars.

Certain cultural hair practices might cause baldness by affecting natural hair oils and stem cell delivery to hair follicles.

Hair growth dysfunction involves various conditions with limited treatment options.

AP-2α and AP-2β proteins are essential for healthy adult skin and hair.

Reproductive hormones play a crucial role in breast cancer development and treatment challenges.

Cosmeceuticals are special products that improve skin and hair health and have benefits like treating acne and wrinkles, protecting from the sun, and helping with dandruff and hair growth.

The document emphasizes the importance of ongoing research and ethical considerations in genome editing and cellular reprogramming.

The conclusion is that grasping how cells determine their roles through evolution is key, with expected progress from new research models and genome editing.

TLR3 activation helps improve skin and hair follicle healing in mice.

Power-enhancing drugs can cause mood swings, aggression, anxiety, and physical side effects, questioning their overall benefits.