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Engineering electroactive and biocompatible tetra(aniline)-based terpolymers with tunable intrinsic antioxidant properties in vivo

机译:在体内具有可调节的固有抗氧化剂特性的工程电活性和生物相容性四(苯胺)基三元共聚物

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摘要

Under different pathological conditions, high levels of reactive oxygen species (ROS) cause substantial damage to multiple organs. To counter these ROS levels in multiple organs, we have engineered highly potent novel terpolymers. We found that combination of FDA-approved polyethylene glycol, fumaric acid moieties and electroactive tetra(aniline) by varying the content of tetra(aniline) results into a novel drug composition with biologically active and tunable intrinsic antioxidant properties. To test the intrinsic antioxidative properties of these novel terpolymers, we used alloxan to induce diabetes in rats where ROS generation is known to be higher. The systemic administration of terpolymers to the diabetic rats showed strong electroactive antioxidant behavior which not only normalized ROS levels, but also improved the levels of enzymatic antioxidants including superoxide dismutase (SOD), catalase (CAT), and glutathione (GSH). As a proof-of-principle, we here show TANI based novel drug composition of terpolymers with tunable intrinsic antioxidant properties in multiple organs.
机译:在不同的病理条件下,高水平的活性氧(ROS)会严重损害多个器官。为了应对多个器官中的这些ROS水平,我们设计了高效的新型三元共聚物。我们发现,通过改变四苯胺的含量,将FDA批准的聚乙二醇,富马酸部分和电活性四苯胺结合起来,可以制成具有生物活性和可调节的固有抗氧化剂特性的新型药物组合物。为了测试这些新型三元共聚物的固有抗氧化性能,我们使用四氧嘧啶在已知ROS生成量更高的大鼠中诱发糖尿病。对糖尿病大鼠的三元共聚物全身给药显示出强的电活性抗氧化剂行为,这不仅使ROS水平标准化,而且还改善了酶促抗氧化剂的水平,包括超氧化物歧化酶(SOD),过氧化氢酶(CAT)和谷胱甘肽(GSH)。作为原理的证明,我们在这里显示了基于TANI的三元共聚物新型药物组合物,其在多个器官中具有可调节的固有抗氧化剂特性。

著录项

  • 来源
    《Materials science & engineering》 |2020年第3期|110456.1-110456.13|共13页
  • 作者

  • 作者单位

    Quaid I Azam Univ Dept Chem Islamabad 45320 Pakistan;

    Quaid I Azam Univ Dept Biochem Islamabad 45320 Pakistan;

    Lulea Univ Technol Chem Interfaces SE-97187 Lulea Sweden;

    Karolinska Univ Hosp Karolinska Inst & Pediat Endocrinol Unit Dept Womens & Childrens Hlth SE-17174 Solna Sweden;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Tetra(aniline); Electroactive terpolymers; Thermal stability; Antioxidant; Biocompatible; Diabetes;

    机译:四(苯胺);电活性三元共聚物;热稳定性;抗氧化剂生物相容性糖尿病;

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