AI Article Synopsis
- The study investigated the impact of mesenchymal stromal cell (MSC) transplantation on muscle function and collagen structure in rats with type 1 diabetes mellitus (DM).
- Rats were divided into three groups: a control group, a diabetic group, and a diabetic group treated with MSCs, with the latter receiving four MSC injections after diabetes was induced.
- Results showed that MSC treatment significantly improved motor performance and collagen organization in muscles, suggesting MSCs can enhance muscle function and tissue structure in diabetic conditions.
Article Abstract
The present study aimed to evaluate the effects of mesenchymal stromal cell (MSC) transplantation on motor function and collagen organization in the muscles of rats with type 1 diabetes mellitus. Male Wistar rats were randomly assigned to three groups: control (C), diabetic (DM) and diabetic treated with MSCs (DM-MSCs). Diabetes was induced by streptozotocin (50 µg/kg). Bone marrow cells were isolated from the tibia and femur. After 10 weeks of DM induction, the DM-MSC rats received four i.p. injections of MSCs (1 × 106). Ten weeks after MSC transplantation, motor performance was evaluated by the rotarod test and the anterior tibial (TA) muscles were collected for morphometric and quantification of collagen birefringence by polarizing microscopy analysis. Motor performance of the DM group was significantly reduced when compared to the C group and increased significantly in the DM + MSC group. The TA muscle mass was significantly reduced in the DM and DM + MSC groups compared to the C group. The connective tissue increased in the DM group compared to the C group and decreased in the DM + MSC group. The percentage collagen birefringence decreased significantly in the DM group when compared to the C group and increased in the DM + MSC group. Motor performance was positively correlated with collagen birefringence and negatively correlated with percentage of connective tissue. The results indicate that MSC transplantation improves both motor function and the collagen macromolecular organization in type 1 DM.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7042733 | PMC |
| http://dx.doi.org/10.1111/iep.12340 | DOI Listing |
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