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Effect of combined treatment with HUVECs and oral Aloe vera on tissue VEGF levels. CON: normal control group; DM: diabetic group; DM + HUVECs: DM transplanted with human umbilical vein endothelial cells group; DM + AV: DM treated with oral Aloe vera group; and DM + HUVECs + AV: DM treated with combined HUVECs and oral Aloe vera group. Results are presented as mean ± SEM. ∗P < 0.05: significantly different between the groups.
