3,403
Views
1
CrossRef citations to date
0
Altmetric
Research Article

Stimulation of human bone marrow mesenchymal stem cells by electromagnetic transduction therapy - EMTT

, , , , , , , , , , & show all
Pages 304-314 | Received 01 Feb 2022, Accepted 01 May 2022, Published online: 07 Jun 2022

Figures & data

Figure 1. Oscillating circuit of TheraCell device (Guth MediTec, Schechen, Germany (80 mT)).

Figure 1. Oscillating circuit of TheraCell device (Guth MediTec, Schechen, Germany (80 mT)).

Figure 2. Treatment protocol.

Figure 2. Treatment protocol.

Figure 3. Placement of the 24-well plate by template in the center of the EMTT device loop.

Figure 3. Placement of the 24-well plate by template in the center of the EMTT device loop.

Figure 4. Primer list for real-time PCR.

Figure 4. Primer list for real-time PCR.

Figure 5. Group-specific MSC viability measured by MTS assay (n = 4; group A: 80 mT, group B: 150 mT, group C: control group). The optic absorption of all three groups increased significantly from day 1 to day 7 and day 14. *p < .05, n = 4; Tukey’s multiple comparison test; data are means ± SD.

Figure 5. Group-specific MSC viability measured by MTS assay (n = 4; group A: 80 mT, group B: 150 mT, group C: control group). The optic absorption of all three groups increased significantly from day 1 to day 7 and day 14. *p < .05, n = 4; Tukey’s multiple comparison test; data are means ± SD.

Figure 6. (a) and (b) Show relative cell viability measured by MTS assay of group A (80 mT) and group B (150 mT) compared with control group C (n = 4; group C = 100% cell viability) after 7 and 14 days of culture. No significant difference of optical density is measured between untreated group C and EMTT-stimulated groups A and B; Tukey’s multiple comparison test; data are means ± SD.

Figure 6. (a) and (b) Show relative cell viability measured by MTS assay of group A (80 mT) and group B (150 mT) compared with control group C (n = 4; group C = 100% cell viability) after 7 and 14 days of culture. No significant difference of optical density is measured between untreated group C and EMTT-stimulated groups A and B; Tukey’s multiple comparison test; data are means ± SD.

Figure 7. Relative expression of pro-osteogenic marker collagen I (Col I), alkaline phosphatase (ALPL), osteocalcin (BGLAP), vascular endothelial growth factor A (VEGF A) and bone morphogenic protein-2 (BMP-2) on day 7 (a) and day 14 (b) in group C (control group), group A (80 mT) and group B (150 mT) measured by real-time PCR. No significant difference of relative expression; n = 4, Tukey’s multiple comparison test.

Figure 7. Relative expression of pro-osteogenic marker collagen I (Col I), alkaline phosphatase (ALPL), osteocalcin (BGLAP), vascular endothelial growth factor A (VEGF A) and bone morphogenic protein-2 (BMP-2) on day 7 (a) and day 14 (b) in group C (control group), group A (80 mT) and group B (150 mT) measured by real-time PCR. No significant difference of relative expression; n = 4, Tukey’s multiple comparison test.

Figure 8. Relative VEGF concentration in group C (control), group A (80 mT EMTT) and group B (150 mT EMTT) on day 7 (a) and day 14 (B).*p < .05, n = 3; Tukey’s multiple comparison test.

Figure 8. Relative VEGF concentration in group C (control), group A (80 mT EMTT) and group B (150 mT EMTT) on day 7 (a) and day 14 (B).*p < .05, n = 3; Tukey’s multiple comparison test.