Stem Cells In The Brain

Over the last several years, few areas of medical look for give way received as much tutelage as those divisions utilize to radical booth look. Research has uncovered a post of omnipotent mobile ph geniuss in numerous organisms that be buzz off like embryotic jail carrels in that they have the ability to transform into many antithetic cell types. These cells component part in injury repair, growth, and regeneration. Stem cell activity has been observed in many areas of the body including the digestive tract and machinate marrow. Almost all post-natal argument cell formation occurs in the bone marrow. Here, a common macrocosm of stem cells (pluripotential hemopoietic stem cells) gives rise to progenitor cells and forerunner cells that, when prompted by sociable levels of growth factors, transform into red blood cells or one of several types of leukocytes. In the lining of the picayune intestine and colon, the regenerative cells of the crypts of Lieberkuhn i n the mucosa are responsible for cell replacement. Until recently, it was believed that cells of the nervous administration did non participate in cell regeneration and replacement. However, as asseverate by Gerd Kempermann and Fred Gage in New Nerve Cells for the handsome Brain, look for has uncovered that stem cells do function in neuron replacement.          A long-time tenet was that neurons were not replaced if the cell died. It was besides believed that a neuron could not repair itself if damaged. Kempermann and Gages article is centered on the long history of investigate devoted to disprove some(prenominal) of these theories. As early as 1965, research was being performed on rats to determine if neuron production existed. The research performed at MIT reported neurogenesis (neuron production) was found to occur in the dentate gyrus sphere of the hippocampus. The hippocampus is the area of the brain associated with stock and learning. In... If you w! ant to induce a full essay, order it on our website: OrderCustomPaper.com

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