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首页> 外文期刊>Clinical Biochemistry >Increased lipid peroxidation and impaired enzymatic antioxidant defense mechanism in thyroid tissue with multinodular goiter and papillary carcinoma.
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Increased lipid peroxidation and impaired enzymatic antioxidant defense mechanism in thyroid tissue with multinodular goiter and papillary carcinoma.

机译:多结节性甲状腺肿和乳头状癌甲状腺组织中脂质过氧化作用增强,酶促抗氧化防御机制受损。

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OBJECTIVES: We aimed to evaluate the oxidant/antioxidant status of thyroid tissue in patients with multinodular goiter, papillary carcinoma and to compare with their nonpathologic tissues. METHODS: We studied 41 patients with multinodular goiter who underwent surgical treatment. The patients were divided into three groups according to clinical diagnosis. Malondialdehyde, selenium, total superoxide dismutase and glutathione peroxidase of thyroid tissue samples were determined in 14 toxic multinodular goiters, 18 non-toxic multinodular goiters, and 9 papillary carcinomas. RESULT: Superoxide dismutase and glutathione peroxidase and selenium were found lower but malondialdehyde was higher in both nodule and cancerous tissues compared with those of control ones. The level of malondialdehyde in non-toxic multinodular goiters group was higher than toxic multinodular goiters group in nodule tissues. CONCLUSIONS: It can be stated that the lipid peroxidation is increased and enzymatic free radical defense system was significantly impaired in patients with both multinodular goiters and papillary carcinomas.
机译:目的:我们旨在评估多结节性甲状腺肿,乳头状癌患者甲状腺组织的氧化/抗氧化状态,并将其与非病理组织进行比较。方法:我们研究了41例接受手术治疗的多结节性甲状腺肿患者。根据临床诊断将患者分为三组。甲状腺组织样品中的丙二醛,硒,总超氧化物歧化酶和谷胱甘肽过氧化物酶在14例毒性多结节性甲状腺肿,18例无毒多结节性甲状腺肿和9例乳头状癌中进行了测定。结果:与对照相比,结节和癌组织中超氧化物歧化酶,谷胱甘肽过氧化物酶和硒含量较低,而丙二醛含量较高。在结节组织中,无毒多结节性甲状腺肿组的丙二醛水平高于有毒多结节性甲状腺肿组。结论:多结节性甲状腺肿和乳头状癌患者脂质过氧化作用增加,酶促自由基防御系统明显受损。

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