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检测幽门螺杆菌(HelicobacterPylori,Hp)感染胃炎患者窦粘膜体外培养上清液中肿瘤坏死因子(TumorNecrosisFactor-α,TNF-α)和血小板源生长因子(Platelet-derivedGrowthFactor,PDGF)水平,结果表明,Hp阳性胃炎患者胃窦粘膜下TNF-α含量和PDGF活性均明显高于Hp阴性患者和正常对照组,合并活动性胃炎患者胃窦TNF-α含量和PD