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The April 2016 JEADV issue covered various dermatology topics, including psoriasis, psoriatic arthritis, mTOR inhibitors, autoimmune diseases, photodynamic therapy, viral DNA in skin diseases, chronic hand eczema, and female hair loss.

Healthy women tend to lose more hair in July and April, and the least in February.

Ruby laser hair removal significantly reduces hair density.

Most pregnant women experience skin changes like darkening and stretch marks, and some may have skin conditions that usually get better after giving birth.

Tinea capitis is common in the Eastern Province of Saudi Arabia and can be effectively treated.

The editor suggests removing "race" and "ethnicity" from dermatology and creating tools to objectively assess skin color and hair texture.

Some drugs can cause serious side effects, like hypoglycemia from mix-ups, skin reactions, or depression, and while penicillamine may help rheumatoid arthritis more than auranofin, it has more severe side effects.

Hidradenitis Suppurativa has genetic links, with certain gene mutations more common in patients and a third of cases having a family history.

In 2013, the FTC settled with hair company Bosley over claims it illegally shared business information with a competitor.

The document concludes that understanding how the skin's immune system and inflammation work is complex and requires more research to improve treatments for skin diseases.

Alopecia Areata is an autoimmune condition causing hair loss with no cure and treatments that often don't work well.

Fat cells help recruit healing cells and build skin structure during wound healing.

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

Skin needs dermal β-catenin activity for hair growth and skin cell multiplication.

Hair stem cell regeneration is controlled by signals that can explain different hair growth patterns and baldness.

Current treatments for alopecia show no significant long-term benefits.

Testosterone therapy in transgender men has both desired effects like increased muscle mass and potential health risks such as higher cardiovascular risk.

Estrogen therapy can reduce skin aging but has cancer risks.

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Particles around 100 nm can penetrate and stay in hair follicles without passing through healthy skin, making them safe for use in topical products and useful for targeted drug delivery.

C60 fullerenes can alter protein function and may help develop new disease inhibitors.

Fullerenes show potential in skin care but need more safety research.

Hormones and metabolism play a complex role in prostate enlargement, and more research is needed to improve diagnosis and treatment.

Cancer patients treated with immune checkpoint inhibitors may develop alopecia, but some hair regrowth is possible with treatment.

PDRN helps repair tissue and improve wound healing with a high safety profile.

Lifestyle changes improve metabolism and fertility in overweight PCOS patients; anti-obesity drugs show potential but need more research.

Prostaglandin D2 blocks new hair growth after skin injury through the Gpr44 receptor.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Brain-Derived Neurotrophic Factor (BDNF) slows down hair growth and promotes hair follicle regression.

Environmental factors at different levels control hair stem cell activity, which could lead to new hair growth and alopecia treatments.