Table 3.
Numeric and statistical results of myocardial mRNA expression
| SHRs not exposed to microcurrent (n = 7) | SHRs exposed to microcurrent (n = 9) | ||||||
|---|---|---|---|---|---|---|---|
| Mean | Standard deviation | Mean | Standard deviation | Difference of the means | Standard error difference | P value | |
| Age (months) | 10.9 | 5.1 | 10.7 | 4.1 | 0.2 | 2.3 | 0.935 |
| Col‐3, re | 30.392 | 1.637 | 30.805 | 1.898 | −0.413 | 902 | 0.654 |
| MMP‐2, re | 746 | 111 | 860 | 50 | −115 | 61 | 0.109 |
| MMP‐9, re | 7.955 | 9.463 | 10.141 | 13.024 | −2.186 | 6.669 | 0.749 |
| TIMP4, re | 21.806 | 2.714 | 20.682 | 4.662 | 1.124 | 1.989 | 0.581 |
| Cx40, re | 16.034 | 1.786 | 15.282 | 1.934 | 0.752 | 943 | 0.439 |
Col‐3, collagen type 3; Cx, connexin; MMP, matrix metalloproteinase; re, relative expression; SHR, spontaneously hypertensive rat; TIMP, tissue inhibitor of metalloproteinases.
The numbers present fold change compared with housekeeping gene (Gapdh) measured as light intensity (pixel/cm2).