Protective effects and possible mechanisms of mesenchymal stem cells and mesenchymal stem cell-derived extracellular vesicles against kidney fibrosis in animal models: a systematic review and meta-analysis

Relatively higher-quality human studies compared with other topics in this database, e.g. multiple RCTs or systematic reviews. This does not mean it is standard or approved care.

• Level A · Stronger Clinical Evidence
• Level B · Emerging clinical evidence with positive signals
• Level C · Early human research exploring benefits
• Level D · Scientific groundwork from lab and animal studies
• Emerging · Emerging topic under active research

Abstract (original English)

Introduction The risk of kidney fibrosis is significantly elevated in individuals with diabetes, chronic nephritis, trauma, and other underlying conditions. Concurrently, human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) and their extracellular vesicles (MSC-Exos) have gained prominence in regenerative medicine. In light of these observations, we are undertaking a meta-analysis to elucidate the influence of hUCB-MSCs and MSC-Exos on kidney fibrosis. Methods To identify eligible trials, we conducted a comprehensive search of the CNKI, PubMed, Web of Science and Wanfang databases from inception to 24 October 2022. Furthermore, the methodological quality of the included studies was evaluated using the Systematic Review Center for Laboratory Animal Experimentation (SYRCLE) risk-of-bias tool. Besides, the weighted standard mean difference (SMD) with a 95% confidence interval (CI) was calculated using the Review Manager 5.4 software. The Stata (12.0) software was employed to assess the impact of factors on outcome heterogeneity and publication bias in the study. A total of 645 related research studies were retrieved, of which 14 that involved 219 experimental animals were included in the study. Results In comparison to the control treatment, treatment with Human UCB MSC and MSC-Exos was observed to significantly enhance renal function in animal models of kidney fi

Evidence level

Relatively higher-quality human studies compared with other topics in this database, e.g. multiple RCTs or systematic reviews. This does not mean it is standard or approved care.

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