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Figure 1 A, Representative immunoblot comparing the amount of Cx43 in control cultures and cultures treated for 6 or 24 h with angiotensin II (A-II) or for 24 h with dibutyryl cAMP (db-cAMP). Hatch marks to the right of the numbers in A indicate the positions of molecular weight markers from 66 to 14 kDa. B, Densitometric quantification of immunoblot band intensities in cultures treated with angiotensin (A-II) for 6 or 24 h or dibutyryl cAMP (db-cAMP) for 6 h. The angiotensin effect was blocked by losartan (Los). The values (means ± SD) from treated cultures have been normalized to values in control cultures in each of four separate experiments. Asterisks indicate p < 0.05 compared with controls.
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