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Aging causes skin stem cells to work less effectively.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Postpartum depression is linked to changes in brain chemicals, inflammation, stress, and certain genes, and can potentially be identified by markers like specific steroids, serotonin levels, and vitamin D levels.

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

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

Exosomes could potentially enhance tissue repair and regeneration with lower rejection risk and easier production than live cell therapies.

Adam10 enzyme is crucial for healthy skin and proper Notch signaling.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

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

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.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Normal skin cell renewal doesn't need RAR signaling, but vitamin A-related skin thickening does.

The human type II 5α-reductase gene, linked to certain male health conditions, has a specific structure and low similarity to other related genes.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.

Adult female acne treatment should be personalized, considering individual preferences and pregnancy, using various topical and oral medications while managing side effects and resistance.

Scientists turned rat thymus cells into stem cells that can help repair skin and hair.

Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.

Men, especially older ones with health issues like prostate cancer, may have worse COVID-19 outcomes and could benefit from therapies targeting male hormones.

KGF and activin are crucial for skin healing and repair.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

Too much Smad7 can cause serious changes in skin tissues, including problems with hair growth, thymus shrinkage, and eye development issues.

Fetal wound healing changes with development, affecting inflammation and collagen, which may influence scarring.

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

New single-cell analysis techniques are improving our understanding of stem cells and could help in treating diseases.

Activating TRPV3 stops human hair growth.

The TGM3 gene's promoter region is key for skin and hair cell function and may aid gene therapy.

Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.

One minoxidil-sensitive potassium channel exists in human hair follicles.

Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.