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The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.

The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.

Aging reduces stem cell activation, leading to hair loss in mice lacking a specific enzyme.

Androgens increase growth factors in skin cells, which may lead to acne.

The secretions of mesenchymal stem cells could be used for healing without using the cells themselves.

Improving artificial vascular grafts requires better materials and surface designs to reduce blood clotting and support blood vessel cell growth.

Hair follicles may soon be used more for targeted and systemic drug delivery.

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

Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.

Thymus transplantation successfully restored immune function in infants with FOXN1 deficiency.

Notch/CSL signaling controls hair follicle differentiation through Wnt5a and FoxN1.

Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.

Different scaffold patterns improve wound healing and immune response in mouse skin, with aligned patterns being particularly effective.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Photothermal hydrogels are promising for infection control and tissue repair, and combining them with other treatments could improve results and lower costs.

Skin grafts are effective for chronic leg ulcers, especially autologous split-thickness grafts for venous ulcers, but more data is needed for diabetic ulcers.

Stem cells help repair tissue mainly by releasing beneficial substances, not by replacing damaged cells.

FOXN1 gene variants cause low T cells and immune issues from birth.

Pyrene excimer nucleic acid probes are promising for detecting biomolecules accurately with potential for biological research and drug screening.

Long-term fluticasone treatment does not harm the immune system in horses with heaves.

Certain signals are important for reducing specific chemical markers on hair follicle stem cells during rest periods, which is necessary for healthy hair growth.

Immune cells help regulate hair growth, and better understanding this can improve hair loss treatments.

iNKT cells can help prevent and treat alopecia areata by promoting hair regrowth.

PRFM may help treat hair loss, especially in mild cases.

Researchers found a safe and effective way to pick genetically modified skin cells with high growth potential using CD24.

Lysophosphatidic acid is important for skin health and disease, and could be a target for new skin disorder treatments.

Cat color patterns are determined early in development by gene expression and epidermal changes, with the Dickkopf 4 gene playing a crucial role.

Nanotechnology improves cosmetics' effectiveness and safety.

COVID-19 may harm male fertility and damage the reproductive system.

The best method for transplanting skin cells to regenerate hair follicles is the Hemi-vascularized sandwich method, as it produces more mature follicles and promotes hair growth.