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Insulin resistance is a key factor in polycystic ovary syndrome, but genetics may also contribute.

Wnt1/βcatenin signaling is crucial for heart repair after injury.

The Rotterdam Study updated its design and objectives in 2012, providing insights into various diseases in the elderly, including skin cancer, bone health, liver disease, neurological and psychiatric conditions, and respiratory issues.

Dermatoscopy is useful for identifying different hair and scalp conditions and can reduce the need for biopsies.

The document concludes that the fast-growing direct-to-consumer genetic testing market lacks sufficient regulation, posing risks to consumers due to questionable test quality and accuracy.

Dermoscopy is a useful tool for identifying features of skin conditions, but more research is needed to define its role in dermatology.

Ectodin integrates BMP, SHH, and FGF signals in developing ectodermal organs.

Melanocyte stem cells in hair follicles are key for hair color and could help treat greying and pigment disorders.

Finasteride doesn't effectively treat hair loss in postmenopausal women.

Low iron and L-lysine levels can cause hair loss in women, and increasing these nutrients can reduce hair shedding.

A protein from certain immune cells is key for new hair growth after skin injury in mice.

Blocking the enzyme 5α-reductase can shrink the prostate and help treat enlarged prostate issues.

The timing of when the gene Bmal1 is active affects aging and survival, with its absence during development, not adulthood, leading to premature aging.

Msx and Dlx genes are crucial for development, controlling cell behaviors like growth and differentiation through their roles as gene regulators.

Middle-aged women with chronic telogen effluvium experience increased hair shedding but usually don't get significantly thinner hair.

PCOS is caused by both genetics and environmental factors like diet and obesity.

Acne affects most teenagers and can continue into adulthood, with various treatments available that show improvement but have concerns like antibiotic resistance and side effects.

Diet changes can protect against harmful environmental effects on fetal development.

Hair loss in women is genetic, diagnosed by examination and biopsy, and treated with minoxidil, finasteride, or transplantation.

The document concludes that understanding hair follicle biology can lead to better hair loss treatments.

Insulin resistance and obesity are key factors in the development and worsening of polycystic ovary syndrome, and lifestyle changes are important for managing it.

Guidelines suggest various treatments for alopecia areata, but leaving it untreated is also an option as 80% cases may recover on their own.

Mice lacking the PPARγ gene in their fat cells had almost no fat tissue, severe metabolic problems, and abnormal development of other fat-related tissues.

Using the eye pressure medication latanoprost can cause excessive hair growth and darker eyelashes on the treated eye.

Testing basal 17-HP levels is a good way to screen for nonclassic adrenal hyperplasia in women with high androgen levels.

Tiny pollution particles called PM2.5 can harm skin cells by causing stress, damage to cell parts, and cell death.

Telogen effluvium is a reversible hair loss condition that requires a detailed diagnosis and often resolves on its own.

The guidelines suggest a detailed approach to diagnosing and treating lupus, with a focus on regular check-ups, personalized medicine, and a range of drug options for different cases.

Diagnosing PCOS in teenagers is challenging and should use strict criteria to avoid misdiagnosis and unnecessary worry.

Stem cells help heal skin wounds by moving and changing roles, working with other cells, and needing more research on their activation and behavior.