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Arrector pili muscle regulates hair follicle stem cells, DNA methylation needed for hair cycling, and Wnt/B-catenin signaling starts hair growth.

The vitamin D receptor is crucial for bone health and affects various body systems, with mutations potentially leading to disease.

Prostate cancer cells can make their own androgens to activate the androgen receptor, and treatments like abiraterone may increase this ability, suggesting new therapies should target the entire steroid-making pathway.

DNA profiling in forensics has improved, but predicting physical traits and ancestry from DNA has limitations and requires ethical consideration.

Auxin and ethylene hormones both work together and against each other to control plant growth.

Hair and nail cells share similar proteins, indicating a common differentiation pathway.

Human skin can make serotonin and melatonin.

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

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.

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

Melatonin is important for skin health and protection, and can be made by the skin or applied to it.

WNT10A mutations often cause ectodermal dysplasias, with males showing more tooth issues than females.

The ZIP7 gene helps control zinc levels in cells by moving zinc from the Golgi apparatus to the cytoplasm.

Hair follicle development and microbes help regulatory T cells gather in newborn skin.

Men are more likely to have severe COVID-19 cases and fatalities than women due to factors like lifestyle, aging, and biological differences.

Researchers created human hair follicles using a new method that could help treat hair loss.

Certain mutations in a hair growth-related gene cause a type of genetic hair loss.

Alopecia areata involves immune activation in the scalp, suggesting treatments targeting TH1, TH2, and IL-23 pathways.

Different types of skin cells have unique genetic markers that affect how likely they are to spread cancer.

Early diagnosis and individualized treatment improve outcomes for Congenital Adrenal Hyperplasia.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

The WNT signaling pathway is important in many diseases and targeting it could offer new treatments.

RNAi-based biopesticides could be safe and effective for pest control with careful development and risk assessment.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

K6hf is a unique protein found only in a specific layer of hair follicles.

Eating less sugar, milk, and saturated fats and more vegetables and fish may help treat and prevent acne.

Human dermal fibroblasts are the main cells targeted by a virus that can cause a deadly skin cancer, and a certain inhibitor can effectively block this infection.

Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

Men generally have more severe COVID-19 cases and higher death rates than women due to biological differences.