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Long scalp hair evolved for cooling and social signaling.

Olfactory receptors found outside the nose may offer new treatments for diseases like cancer and help in wound healing and hair growth.

A treatment called Cellcurin, combined with microneedling, significantly increased hair density and diameter in patients with hair loss.

Carvone helps treat skin issues by reducing melanin and stopping harmful cell growth.

Skin issues can indicate immune system problems.

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.

New treatments for Alopecia Areata show promise but need to be more effective and affordable.

Organotypic culture systems can grow skin tissues that mimic real skin functions and are useful for skin disease and hair growth research, but they don't fully replicate skin complexity.

Eph/ephrin signaling is important for skin cell behavior and could be targeted to treat skin diseases.

Finasteride can cause one-sided breast enlargement, which disappears after stopping the drug.

Alopecia areata causes hair loss due to an immune attack on hair follicles, influenced by genetics and environment.

Stem cells in hair follicles can become various cell types, including neurons.

Choosing the right method to separate skin layers is key for good skin cell research.

Skin cell behavior is influenced by the tightness of nearby cells, affecting their growth and development.

The JAK/STAT pathway is important in cell processes and disease, and JAK inhibitors are promising for treating related conditions.

Porcine skin is very similar to human skin, making it a useful model for research.

Different small areas within hair follicles send specific signals that control what type of cells stem cells become.

NK cells play a role in skin diseases like eczema and psoriasis.

Overactivating Hedgehog signaling makes hair follicle cells in mice grow hair faster and create more follicles.

TGM3 is important for skin and hair structure and may help diagnose cancer.

Foxp3+ Regulatory T Cells are important for immunity and tolerance, affect hair growth and wound healing, and their dysfunction can contribute to obesity-related diseases and other health issues.

Bioassays help find useful compounds in nature for making medicines, supplements, and cosmetics.

Interferon alfa-2a is effective for treating cutaneous T cell lymphoma but has significant side effects.

Wnt signaling is crucial for pigmented hair regeneration by controlling stem cell activation and differentiation.

Oxidative stress causes hair to gray by damaging and killing pigment cells.

Cathepsin L is essential for normal hair growth and development.

Hair graying happens because certain cells aren't maintained properly.

Melanocyte activity in hair follicles is linked to the hair growth cycle, being active in growth phases and inactive in rest phases.

The article concludes that while we understand a lot about how melanocytes age and how this can prevent cancer, there are still unanswered questions about certain pathways and genes involved.

The new assay can track and measure melanosome transfer between skin cells, confirming filopodia's role in this process.