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July 04 2014

regeneration

Stem cell study retracted due to critical mistakes

The authors of a study that claimed to have come up with a new fast, easy, inexpensive and uncontroversial method of produce stem cells called for a retraction of their study in the month of March. Apparently the scientists had taken a skin cell and coaxed it into acting like an embryo, producing embryonic-like stem cells that could theoretically be turned into any cell in the body.

What was described as a ‘breakthrough’ is how these cells were coaxed, by placing them in an acidic bath. But the researchers, who had announced the results in January 2014, have now stated in their retraction that their papers had ‘several critical errors’ in their study data. An investigation into the studies was started by the Riken Center for Developmental Biology in Japan in February 2014, and the institution said its investigators.

n fact, the retraction was called for because one of the co-authors questioned some of the data that were used in the experiments, which led to the creation of so-called STAP cells (or stimulus-triggered acquisition of pluripotency cells). In an editorial accompanying the retraction, it was written that the errors were found in the figures, parts of the methods descriptions were found to be plagiarized, and early attempts to replicate the work failed. The investigation found that data supposedly representing different cells and different embryos in the study were actually describing the same cells and the same embryos. The study was published in the journal Nature, which is now accompanied by the retraction of all co-authors.

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May 19 2014

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May 07 2014

regeneration

Renal Kidney failure treatment

Scientific researchers are still debating whether kidney stem cells exist how they could be identified and in the grownup body and in that case, where they can be located. Cells located in numerous spots within the nephrons are suggested as candidates for kidney stem cells. The most persuasive signs for the beingness of such stem cells is the discovery of several cells at the urinary post of the Bowman's capsule of the nephron (marked in azure in the diagram over). These cells have some of the essential characteristics of stem cells and investigators have revealed them to lead to that should be replaced constantly throughout our life.Specialized cells active in the filtration function of the nephron and generation of podocytes. Studies additionally indicate that these same projected adult stem cells might manage to create an additional sort of specialized cell within the nephron lining, called proximal tubular epithelial cells. Other recommended locations for kidney stem cells contain specific spots in the tubules (noticeable green in the diagram). Cells with some of the features of mesenchymal stem cells have quite lately been isolated in the kidney, along with kidney stem cells.
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Degenerative Disc Stem Cell Therapy
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