Background: A hot new topic in medical treatment is the use of mesenchymal stem cells (MSC) in therapy. The low frequency of this subpopulation of stem cells in bone marrow (BM) necessitates their in vitro expansion prior to clinical use. We evaluated the effect of long term culture on the senescence of these cells.

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Based on this randomized controlled trial, autologous bone marrow MSC transplantation through peripheral vein probably has no beneficial effect in cirrhotic patients. Further studies with higher number of patients are warranted to better clarify the impact of MSC infusion through peripheral vein or portal vein in cirrhosis.