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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.

Some wound-healing cells can turn into fat cells around new hair growth in mice.

The Rotterdam Study updated findings on elderly health, focusing on heart disease, genetics, lifestyle effects, and disease understanding.

Increasing mir-302 turns human hair cells into stem cells by changing gene regulation and demethylation.

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

Different types of skin cells play specific roles in development, healing, and cancer.

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

Pectin biosynthesis is essential for the growth of cotton fibers and Arabidopsis root hairs.

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

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.

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

Some viruses can cause cancer by changing cell processes and avoiding the immune system; vaccines and targeted treatments help reduce these cancers.

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.

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

Antibiotics can reduce acne but may lead to resistant bacteria, and understanding the skin's bacteria is important for treatment.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

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

Fat cells in the skin help start healing and form important repair cells after injury.

Janus kinase inhibitors are promising treatments for autoimmune skin diseases like eczema and psoriasis.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

Different PIN proteins affect plant root hair growth by changing how auxin is transported.

PDGFA/AKT signaling is important for the growth and maintenance of certain skin fat cells.

White lupin uses specific genes to grow root hairs and access phosphorus when it's scarce.

Hidradenitis suppurativa is caused by genetic factors, inflammation, bacteria, hormones, and lifestyle factors like obesity and smoking.

Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.

Short-chain fatty acids from *Cutibacterium acnes* cause skin inflammation, contributing to acne.

Air pollution (PM10) increases skin inflammation and aging by reducing collagen and may trigger a repair response in skin cells.

Tissue-resident memory T cells can protect against infections and cancer but may also contribute to autoimmune diseases.

Researchers found 63 genes linked to male-pattern baldness, which could help in understanding its biology and developing new treatments.