Angsuman Chakraborty11 Oct 2008 04:58 am
As a conclusion of the 18-month investigation, The University of Minnesota has concluded that falsified data were used in a 2001 article published by one of its researchers on adult stem cells.
The investigation was done by the stem-cell expert Dr. Catherine Verfaillie. The investigation clears Verfaillie of misconduct but points to a former graduate student, Dr. Morayma Reyes, who is now an assistant professor at the University of Washington.The school is asking that the article be retracted.
The study was one of a series that Verfaillie published, suggesting that adult stem cells could be used as an alternative to embryonic stem cells in medical research.Reyes, who responded to questions by e-mail, said the correction in the journal Blood is warranted. However, she denied falsifying data.
She added the university panel said she falsified data by adjusting brightness and contrast in scientific images included in the article. At the time the research was done, that was an accepted practice but it has since changed, she said. The panel judged her on the newer standard.But Reyes also said they in no way altered the conclusions of the paper, and the research has since been successfully reproduced by other scientists.
Source: Associated Press
Filed under Adult Stem Cell, Embryonic Stem Cell, Stem Cell | Comment Below
Related?
SKorean Cloning Scientist Never Cultivated Patient-Specific Stem CellsNovember 14th, 2006 Disgraced South Korean scientist Hwang Woo-suk, who falsified stem cell research data, testified Tuesday that his team had never succeeded in cultivating stem cells matched to patients. Hwang Woo-suk, who once claimed to have produced the first cloned human embryonic stem cells, said he "succeeded in making blastocysts for tailored stem cells but there wasn't any success in cultivating (patient-specific) stem cells," his lawyer Jung Keun-hwa said after a trial hearing in Seoul.
Umbilical Cord Blood Transplantation Treatement for Leukemia PatientsJuly 15th, 2007 A new hope for leukemia patients that transplantation of umbilical cord blood is as effective for them as bone marrow transplantation. A University of Minnesota-led study has shown that the Patients receiving cord blood had the same five-year leukemia-free survival rates as those who received bone marrow.
Revolutionary Stem Cell Study Finds Key to Large Scale Stem Cell Production for Therapeutic Use May 22nd, 2008 The researchers at the University of Southern California have found that the the embryonic stem cell will remain undifferentiated if they are shielded from differentiation signals. By applying the small molecules that block the chemicals from activating the differentiation process, the natural default of the cell is to self-renew, or multiply, as generic stem cells.
Scientists Able to Turn Stem Cell Into Lung CellsNovember 6th, 2006 Researchers at the University of Minnesota have, for the first time, coaxed umbilical cord blood stem cells to differentiate into a type of lung cell. The cord blood cells differentiated into a type of lung cell called type II alveolar cells.
Hematopoietic Stem Cells able to Resist Infection With HIV-1 February 7th, 2007 Hematopoietic stem cells (HSCs) are one of the few cell types able to resist infection with HIV-1 despite expressing the cell surface molecules to which HIV-1 binds before entering a cell. In a study that appears in the February issue of the Journal of Clinical Investigation, researchers from Harvard Medical School, Boston, show that HSC expression of a protein known as p21Waf1/Cip1/Sdi1 (p21) is required for HSCs to be resistant to infection with HIV-1.
You May Donate Unused Embryos for Stem Cell Research April 2nd, 2007 There are almost half-million frozen embryos stored in fertility clinic freezers across the country. Most couples attempting to have children through in-vitro fertilization keep their unused frozen embryos indefinitely.
Umbilical Cord Blood Transplants Successful in Children with High-Risk Acute Lymphocytic LeukemiaJuly 16th, 2005 Researchers from Northwestern University have shown that children with high-risk acute lymphocytic leukemia (ALL) receiving umbilical cord blood transplants have similar outcomes to patients receiving related allogeneic stem cell transplants. The details of this comparative study were presented at the Third Annual International Umbilical Cord Blood Transplantation Symposium in Los Angeles, Calif., June 3-4, 2005.
Angioblast Systems announces stem cell trial in heart failure to be successfulOctober 14th, 2008 World's first stem cell trial on heart failure is successful. Angioblast Systems Inc has announced the successful clinical trial to use allogeneic adult stem cells obtained from an unrelated, universal donor to treat patients with congestive heart failure.
Leave a Comment