Parameters SC (14) SM (13) ARC (11) ARM (16) Disease Treatment D x T
Body Weight, g 568 ± 9.9 580 ± 9.4 548 ± 5.3 552 ± 6.4 0.0047 0.34 0.69
Tibial length, mm 58 ± 0.5 58 ± 0.4 58 ± 0.4 58 ± 0.4 0.31 0.32 0.72
Heart, mg 1206 ± 42.0 1180 ± 30.7 1988 ± 58.2 1911 ± 31.4 <0.0001 0.22 0.54
LV, mg 875 ± 28.5 843 ± 19.4 1487 ± 55.4 1432 ± 26.9 <0.0001 0.22 0.75
RV, mg 231 ± 8.7 229 ± 7.0 340 ± 16.6 319 ± 7.9 <0.0001 0.28 0.36
SC: sham control (untreated), SM: sham metformin-treated animals, ARC, aortic regurgitation control group and ARM: aortic regurgitation metformin-treated animals. LV: left ventricle and RV: right ventricle. Values are expressed as mean ± SEM. The number of animals per group is indicated in parenthesis. P values from 2-way ANOVA analysis are shown on the right to evaluate separately the general impact of the disease or the metformin treatment and the interaction between disease and treatment (D x T).
Table 2: Animal characteristics.