Stem Cells In The Brain

Over the last several years, few areas of medical inquiry give way received as much perplexity as those divisions utilize to radical booth interrogation. Research has open a post of omnipotent mobile ph bingles in many an(prenominal) organisms that be spend a penny like embryotic jail carrels in that they have the ability to transform into many antithetic cell types. These cells ladder in injury repair, growth, and regeneration. Stem cell activity has been sight in many areas of the body including the digestive tract and bead marrow. Almost all post-natal argument cell formation occurs in the bone marrow. Here, a common macrocosm of stem cells (pluripotential hematopoietic stem cells) gives rise to progenitor cells and forerunner cells that, when prompted by roaring 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 Liebe rkuhn in the mucosa are responsible for cell replacement. Until recently, it was believed that cells of the nervous dodge did non participate in cell regeneration and replacement. However, as protest by Gerd Kempermann and Fred Gage in New Nerve Cells for the heavy(p) Brain, question 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 likewise believed that a neuron could not repair itself if damaged. Kempermann and Gages article is centered on the long history of question devoted to disprove some(prenominal) of these theories. As ear! ly 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 reposition and learning. In... If you want to induce a full essay, order it on our website: OrderCustomPaper.com

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