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Autologous bone marrow-derived mononuclear cell transplants can reduce diabetic amputations
Date:4/18/2012

Tampa, Fla. (April. 18, 2012) Autologous (self-donated) mononuclear cells derived from bone marrow (BMMNCs) have been found to significantly induce vascular growth when transplanted into patients with diabetes who are suffering from critical limb ischemia caused by peripheral artery disease (PAD), a complication of diabetes. The team of researchers in Seville, Spain who carried out the study published their results in a recent issue of Cell Transplantation (20:10), now freely available on-line at http://www.ingentaconnect.com/content/cog/ct/.

"Critical limb ischemia in diabetic patients is associated with high rates of morbidity and mortality; however, neovascularization induced by stem cell therapy could be a useful approach for these patients," said study corresponding author Dr. Bernat Soria of the Andaluz Center for Biologic and Molecular Regenerative Medicine in Seville, Spain. "In this study we evaluated the safety and efficacy of inter-arterial administration of autologous bone marrow-derived mononuclear cells with 20 diabetic patents with severe below-the-knee arterial ischemia."

The researchers noted that surgical or endovascular revascularization options for patients such as those in the study are limited because of poor arterial outflow. Although optimum dose, source and route of administration were outstanding questions, proper BMMNC dose for best results was an issue that the researchers hoped to clarify. They subsequently used a dose ten times smaller than other researchers had used previously in similar studies.

According to the authors, the rationale for their study was that intra-arterial infusions of autologous BMMNCs contain endothelial progenitors that are locally profuse at severely diseased vascular beds in the lower limb. Their hope was that the BMMNCs could promote early and effective development of new vascularization.

Patients were
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Contact: David Eve
celltransplantation@gmail.com
Cell Transplantation Center of Excellence for Aging and Brain Repair
Source:Eurekalert

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