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Stem cells are autologous Mitchell Trubisky Jersey , coming from your own body or allergenic, coming from another person who donates them. Stem cells are unique in their ability to divide and regenerate themselves and in their ability to remain specialized or unspecialized in the tasks of the human body. Stem cell therapy for conditions characterized by myocyte loss in myocardial infarction and heart failure is intuitively appealing. Stem cells from various sources Anthony Miller Jersey , including heart itself in preclinical and animal studies, have shown the potential to improve the function of ventricular muscle after ischemic injury. Stem cell-based therapy became a realistic option to replace damaged heart muscles due to series of experimental findings of myocyte turnover in mammalian heart. Stem cells are primitive James Daniels Jersey , undifferentiated; undefined pluripotent multiline age cells that retain the ability to renew themselves through mitotic cell division and can divide and create a cell more differentiated than it. Stem cells have the ability to differentiate into specific cell types. The 2 defining characteristics of a stem cell are perpetual self-renewal and the ability to differentiate into a specialized adult cell type. There are 2 major classes of stem cells: pluripotent cells which can become any cell in the adult body and multipotent cells which are restricted to becoming a more limited population of cells. Pluripotent stem cells being used in research today mainly come from embryos, hence the name embryonic stem cells. Preimplantation embryos a few days old contain only 10% to 15% pluripotent cells in the “inner cell mass”. Multipotent stem cells may be a viable option for clinical use. These cells have the plasticity to become all progenitor cells for a particular germ layer or can be restricted to become only 1 or 2 specialized cell types of a particular tissue. Multipotent cells have also been used as the starting point for cell therapy Roquan Smith Jersey , again with cocktails of growth factors andor chemicals to induce differentiation toward a specific, desired lineage. Pluripotent stem cells have not yet been used therapeutically in human beings because many of the early animal studies resulted in the undesirable formation of unusual solid tumors called teratomas. Stem cell use is exciting and holds great promise for treating and perhaps one day curing many diseases.
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