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Updated: Jan 29, 2026

Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes
Published on: August 20, 2007
Efficacy of Autologous Bone Marrow Mononuclear Cell Transplantation Therapy for Type 2 Diabetes Mellitus: An Updated
Xue-Jun Guo1, Feng-Ju Li1, Yu-Zhuo He1
1Department of Hemopathology, Puyang City Oilfield General Hospital, Puyang City, Henan, People's Republic of China.
Introduction:
Studies of the effects of stem cell therapy on type 2 diabetes mellitus (T2DM) have not reached consistent results. Our meta-analysis aimed to systematically evaluate the efficacy of autologous bone marrow-derived stem cells (ABM-MNCs) on T2DM.
Methods:
We systematically searched PubMed, EMBASE, Web of Science, and the Cochrane Library for studies published between 1980 and May 2018. Two researchers screened the literature independently following the inclusion and exclusion criteria. Meta-analysis of the pooled standard mean difference (SMD) with 95% confidence interval (CI) was calculated based on either a fixed- or random-effects model.
Results:
We identified six studies with 206 participants investigating the effects of autologous bone marrow stem cell therapy on T2DM after screening 102 studies found after the initial search. According to the pooled estimates, compared with the control group, after 12-month follow-up the ABM-MNC therapy group had a lower level of HbA1c (MD, - 1.18; 95% CI, - 1.40 to 0.95) and lower required insulin dose (MD, - 2.05; 95% CI, - 3.55 to - 0.55). HbA1c decreased after ABM-MNC therapy compared with before (12 months: MD, - 1.22; 95% CI, - 1.43 to - 1.0). We also observed a significant decrease in insulin requirement after 3-, 6-, 9-, and 12-month follow-up in the ABM-MNC group, respectively.
Conclusion:
Autologous stem cell therapy showed a beneficial effect on T2DM.
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