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Regeneration (biology) - Wikipedia, the free encyclopedia
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Dr. Harber-Katz believes that living organisms had originally used both the immune system and regeneration for recovering from wounds. Yet the two methods proved to be incompatible during the evolution and regeneration was eventually deleted.
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What about regeneration capabilities of a human being? There are only two kinds of cells that can regenerate – blood cells and liver cells. The principles of regeneration are different in this case. A small number of cells are unaffected by the process of specialization as the embryo of an mammal grows on.
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All animals have the power of regeneration to a greater or lesser degree. In man and higher animals it is quite limited. We see it most often in the healing of wounds and the mending of bones. A lost fingernail can be replaced but not a lost finger.
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MIT team refines optical 'lab on a chip' ... "This new technology is allowing us to study the entire genome of the animal in very short periods of time," Yanik said. "We are currently combining it with genetic and drug screens to study neural regeneration on these animals."
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Regeneration generally involves the formation of a wound epithelium after transection or injury, followed by the generation of regenerative progenitor cells and morphogenesis to give the regenerate. Common mechanisms may exist in relation to each of these aspects.
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"Regeneration is not just making more cardiomyocytes," he says. "Cardiomyocytes need a blood supply ... 26, 2008) — Researchers have been able to effectively repair damaged heart muscle in an animal model using a novel population of stem cells they discovered that is derived from human skeletal muscle ... > read more...
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