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A stem cell possesses two properties: . Self-renewal is the ability to go through numerous cycles of cell division while still maintaining its undifferentiated state. Stem cells can replicate several times and can result in the formation of two stem cells, one stem cell more differentiated than the other, or two differentiated cells.
Adult stem cells are also used in veterinary medicine to treat tendon and ligament injuries in horses. [60] The use of adult stem cells in research and therapy is not as controversial as the use of embryonic stem cells, because the production of adult stem cells does not require the destruction of an embryo.
Adult stem cells are multipotent: they can generate a limited number of differentiated cell types (unlike pluripotent embryonic stem cells). Types of adult stem cells include hematopoietic stem cells and mesenchymal stem cells. Hematopoietic stem cells are found in the bone marrow and generate all cells of the immune system all blood cell types ...
Neoblasts are somatic adult stem cells that are abundant in planarians. Morphologically, neoblasts are round and small, 5 to 10 μm, and have a large nucleus and scant cytoplasm. [1] They are the only dividing planarian cells. [3] Neoblasts are found in the planarian parenchyma across the entire body, outside organ systems. [1]
Haematopoietic stem cell transplantation (HSCT) is the transplantation of multipotent haematopoietic stem cells, usually derived from bone marrow, peripheral blood, or umbilical cord blood. [ 10 ] [ 11 ] [ 12 ] It may be autologous (the patient's own stem cells are used), allogeneic (the stem cells come from a donor) or syngeneic (from an ...
In 2012, stem cells were studied in people with severe heart disease. [48] The work by Bodo-Eckehard Strauer [49] was discredited by identifying hundreds of factual contradictions. [50] Among several clinical trials reporting that adult stem cell therapy is safe and effective, actual evidence of benefit has been reported from only a few studies ...
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