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1. Compared with the ulcer healing rate of 43.4% in the control groups in the meta-analysis presented in this article, what was the total healing rate for the stem cell groups?


a. 63.4%


b. 75.7%


c. 81.9%


2. One of the two stem cell groups that had higher ulcer healing rates compared with the control group was the


a. adipose-derived stem cell group.


b. mesenchymal stem cell (MSC) group.


c. tissue repair cell group.


3. The rate of amputation in the stem cell groups was 3.3% in this meta-analysis, compared with a total amputation rate in the control groups of


a. 11.4%.


b. 16.7%.


c. 20.3%.


4. What parameter changed significantly more after therapy in the stem cell groups than in the control groups?


a. less social isolation


b. increased pain-free walking distance


c. lower levels of anxiety and depression


5. Although there was no evidence that the reported adverse events were related to the stem cell therapy, what is one of the adverse events that was noted among the stem cell group participants?


a. pain


b. hematoma


c. periwound dermatitis


6. There was a significant reduction in what adverse event in the stem cell groups compared with the control groups?


a. infection


b. scar formation


c. death


7. According to research by Mathew et al (2020), which MSCs may be a particularly good option for therapeutic angiogenesis because of their more angiogenic properties?


a. adipose-derived MSCs


b. placenta-derived MSCs


c. bone marrow-derived MSCs


8. According to the authors, which of the following points was becoming evident in the clinical application of stem cell therapy for the treatment of diabetic foot ulcers?


a. Embryonic stem cells were selected in the randomized controlled trials.


b. The most common cell type studied was adipose-derived cells.


c. The comparative efficacy of different types of stem cells is unclear.


9. Results from the studies in this meta-analysis revealed that the type of stem cell transplantation that is the most favored is


a. allogeneic.


b. xenogeneic.


c. autologous.


10. In the studies in this meta-analysis, the stem cells were administered most commonly as


a. an intramuscular injection.


b. a dressing.


c. a spray.