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

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

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.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

TRP channels in the skin are important for sensation and health, and targeting them could help treat skin disorders.

The article concludes that the wool follicle is a valuable model for studying tissue interactions and has potential for genetic improvements in wool production.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

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

A genetic region near the PAX1 gene is linked to a higher risk of scoliosis in females.

A genetic change in the EDAR gene causes the unique hair traits found in East Asians.

Antiandrogens affect androgen-dependent body functions and are used for various medical conditions, with some risks like fetus feminization, but new forms like 17α-propylmesterolone show promise for acne without systemic effects.

Treatments for permanent hair loss from scarring aim to stop further loss, not regrow hair, and vary by condition, with partial success common.

BMP2 and BMP7 have opposite roles in feather formation.

Skin changes can help diagnose and manage endocrine disorders like thyroid problems, diabetes, and adrenal gland conditions.

Mutant mice help researchers understand hair growth and related genetic factors.

Mammals might fail to regenerate not because they lack the right cells, but because of how cells respond to their surroundings, and changing this environment could enhance regeneration.

Skin development in mammals is controlled by key proteins and signals from underlying cells, involving stem cells for maintenance and repair.

EGF and KGF signalling prevent hair follicle formation and promote skin cell development in mice.

Mesenchymal stem cells show potential for skin healing and anti-aging, but more research is needed for safe use, especially regarding stem cells from induced pluripotent sources.

The dermal regeneration template is effective in skin regeneration, reducing scarring, and has potential for future improvements.

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair treatments.

High-frequency ultrasonography is a useful but underused tool in dermatology for assessing skin cancers, monitoring diseases, and evaluating treatments.

Hair follicle stem cells are a promising source for tissue repair and treating skin or hair diseases.

Noggin overexpression delays eyelid opening by affecting cell death and skin cell development.

Notch-related genes play a key role in the development and cycling of hair follicles.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Using CRISPR for gene editing in the body is promising but needs better delivery methods to be more efficient and specific.

Chemotherapy can cause permanent, non-reversible hair loss similar to pattern baldness.

Wnt, Eda, and Shh pathways are crucial for different stages of sweat gland development in mice.