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Expression of mRNA for SST, SSTR2, SSTR3, SSTR5 in normal and cancer groups. Total RNA was isolated from normal gastric tissue and gastric cancer. RT-PCR was used to amplify SST and SSTR cDNAs with gene-specific primers. PCR products were separated on 1.5% agarose gel and visualized following ethidium bromide staining. N, normal group; C, cancer group; β, β-actin; SST, somatostatin, SSTR, SST receptor; RT-PCR, reverse transcription-PCR.
