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Efficacy of Autologous Bone Marrow Mononuclear Cell Therapy in Patients with Peripheral Arterial Disease *

Aim: Peripheral arterial disease (PAD), particularly critical limb ischemia (CLI), is a severe cause of amputation and mortality. More than 50% of diabetic patients with CLI die within four to five years. The development of novel stem cell therapies may bring new hope to these patients. We aimed to assess the efficacy of autologous bone marrow cell therapy for treating CLI using a meta-analysis.

Methods: We searched the literature in PubMed, the Cochrane Central Registry of Controlled Trials, the Elsevier database and EBSCO for trials of autologous cell therapy in patients with severe PAD published before October 30, 2013. We chose objective clinical endpoints to assess the efficacy of therapy in the meta-analysis, including changes in the ankle-brachial index (ABI), transcutaneous oxygen tension (TcO2), pain scale (0-10 scale) and amputation-free survival (AFS).

Results: Thirty-one articles reporting clinical trials involving a total of 1,214 patients treated with bone marrow stem cell-based therapy were collected for the meta-analysis, in which the randomized controlled trials (RCTs) and other trials (non-RCTs) were classified into two groups. Regarding the efficacy of stem cell therapy, the ABI showed significant increases (P<0.05) at 12 , 24 and 48 weeks after therapy in the non-RCT and RCT groups, but not after four to eight weeks in the non-RCT group. The TcO2 values also increased in the RCT group at four to eight weeks after therapy and 24 weeks after therapy (P<0.001) and in the non-RCT group at four to eight weeks after therapy (P= 0.01), although no significant increases were observed in the RCT group at 12 weeks after therapy or the non-RCT group at 24 weeks after therapy. Meanwhile, pain was significantly reduced (P<0.05) at four to eight weeks and 24 weeks after therapy in both the non-RCT and RCT groups, but not at four to eight weeks or 12 weeks after therapy in the RCT group. In addition, the long-term clinical trials demonstrated that the AFS rate improved after therapy with bone marrow stem cells (one-year AFS, P<0.00001; three-year AFS, P=0.0003).

Conclusions: The present results suggest that autologous bone marrow stem cells have an advantageous therapy effect in PAD patients who are not eligible for revascularization.

* Legal Disclaimer: Chelation and Hyperbaric Therapy, Stem Cell Therapy, and other treatments and modalities mentioned or referred to in this web site are medical techniques that may or may not be considered “mainstream”. As with any medical treatment, results will vary among individuals, and there is no implication or guarantee that you will heal or achieve the same outcome as patients herein.

As with any procedure, there could be pain or other substantial risks involved. These concerns should be discussed with your health care provider prior to any treatment so that you have proper informed consent and understand that there are no guarantees to healing.

THE INFORMATION IN THIS WEBSITE IS OFFERED FOR GENERAL EDUCATIONAL PURPOSES ONLY AND DOES NOT IMPLY OR GIVE MEDICAL ADVICE. No Doctor/Patient relationship shall be deemed to have arisen simply by reading the information contained on these pages, and you should consult with your personal physician/care giver regarding your medical treatment before undergoing any sort of treatment or therapy.

Published on 04-26-2017
Authors: Zheng-Xu Wang, Duo Li, Jun-Xia Cao, Yi-Shan Liu, Min Wang, Xiao-Yan Zhang, Jun-Li Li, Hai-Bo Wang, Jin-Long Liu, Bei-Lei Xu