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Effect of chronic intermittent hypobaric hypoxia (IHH, black columns) on protein level of non-phosphorylated Cx43 (A), phosphorylated Cx43 at Ser368 (B), phosphorylated Cx43 at Ser279/282 (C), and phosphorylated Cx43 at Tyr265 (D) assessed by western blotting in the left ventricular myocardium. N, normoxic group (open columns). Values are mean ± SEM, (n = 5 in each group), **P < 0.01.
