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The mRNA expressions of Bcl-2 and Bcl-xL were assessed using RT-PCR standardized by coamplifying the housekeeping gene b-actin. A: the mRNA expression of Bcl-2. lanes 1-3, adenocarcinoma; lanes 4-6, adenoma; lane 7, normal; lane 8, marker. B: the mRNA expression of Bcl-2. lane 1, marker; lane 2, normal; lanes 3-5, adenoma; lanes 6-8, adenocarcinoma.
