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- W3030281259 abstract "目的研究对苯二甲酸(TPA)诱导大鼠膀胱肿瘤的分子病理学改变.方法用喂饲法以5 000、500、50mg/kg TPA分别对SD大鼠连续染毒90 d.对大鼠进行普通病理学检查.用免疫组化法检测大鼠膀胱p53和增殖细胞核抗原(PCNA)的表达情况.结果5 000 mg/kg TPA染毒大鼠膀胱移行细胞癌发生率为23.5%(4/17),不典型增生率为29.4%(5/17),单纯增生率为41.2%(7/17);500 mg/kg TPA染毒大鼠不典型增生率为55.6%(10/18),单纯增生率为11.1%(2/18);50 mg/kg TPA染毒大鼠单纯增生率为58.8%(10/17);对照组大鼠单纯增生率为5.6%(1/18).TPA染毒大鼠PCNA的表达与病理改变呈等级正相关(rs=0.79),与染毒剂量呈直线相关[P＜0.01,rate=0.183+0.057×dose(g)];P53蛋白在各组大鼠中均未见明显表达.结论 TPA可诱导大鼠PCNA的过度表达,与膀胱移行细胞癌的发生发展有一定的关系,p53基因的表达与膀胱癌关系不明显." @default.
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- W3030281259 date "2001-07-20" @default.
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- W3030281259 title "Study on the molecular pathology of terephthalic acid-induced urinary bladder cancer" @default.
- W3030281259 doi "https://doi.org/10.3760/cma.j.issn.1001-9391.2001.04.020" @default.
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