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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.

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

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

Macrophages help activate hair follicle stem cells, affecting hair growth and skin repair.

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

Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.

Wnt ligands are crucial for hair growth and repair.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Blocking JAK-STAT signaling can lead to hair growth.

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

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.

Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.

Keratinocytes help heal skin wounds by interacting with immune cells and producing substances that kill pathogens.

Targeting the IL-23/IL-17 pathway effectively treats several inflammatory skin diseases.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

Feather patterns in birds are shaped by signaling interactions and cell movements, with EDA/EDAR crucial for pattern formation.

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.

Key genes and pathways crucial for hair follicle development in cashmere goats were identified, aiding fleece production improvement.

Older age and related diseases increase COVID-19 risk, but anti-aging treatments might help.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.

The research identified various cell types in mouse and human teeth, which could help in developing dental regenerative treatments.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.

Skin-derived precursors in hair follicles come from different origins but function similarly.

Cepharanthine and Trifluoperazine are effective against SARS-CoV-2.

The guideline offers current advice for diagnosing and treating Long- and Post-COVID symptoms.

Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.

Mutations in the PADI3 gene are linked to a higher risk of scarring hair loss in women of African descent.

A wearable device using electric stimulation can significantly improve hair growth.

Using human fat tissue derived stem cells in micrografts can safely and effectively increase hair density in people with hair loss.