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Figure 1 Quantitative analysis of connexin (Cx)43 protein and messenger ribonucleic acid (mRNA) levels in cardiomyocytes subjected to rapid electrical stimulation. (A) Connexin43 protein levels estimated by Western analysis; Cx43 amount was normalized to control protein (mean ± SD, n = 8). *p < 0.05; **p < 0.01 vs. baseline. (B) Connexin43 mRNA levels estimated by reverse transcription-polymerase chain reaction. Connexin43 mRNA amount was normalized to GAPDH (means ± SD, n = 8). **p < 0.01 vs. baseline.
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