Department of Zoology, School of Basic Science, SRM University, Gangtok, Sikkim, India.
Department of Zoology, Bharathiar University, Coimbatore, Tamilnadu, India.
J Biochem Mol Toxicol. 2024 Jan;38(1):e23576. doi: 10.1002/jbt.23576. Epub 2023 Oct 31.
Arsenic (As) toxicity can generate reactive free radicals, which play an important role in the evolution of cardiomyopathy. The aim of this research is to see if sulforaphane (SFN) protects against As-induced heart damage, oxidative stress, and mitochondrial complex dysfunction via the PI3K/Akt/Nrf2 signaling pathway. The rats were placed into four groups, each with eight rats. Group 1: Normal rats (control group); Group 2: Treatment group (5 mg/kg body weight); Group 3: SFN+As-treatment group (80 mg/kg body weight + 5 mg/kg body weight); Group 4: SFN group only (80 mg/kg body weight). The swot will last 4 weeks. At the end of the intermission (28 days), all of the rats starved overnight and killed with cervical decapitation. As administration considerably (p < 0.05) inflated the extent of free radicals (O2-, OH-), lipoid peroxidation (malondialdehyde, 4-hydroxynonenal), lipoid profile (low-density lipoprotein-cholesterol, very low-density lipoprotein-cholesterol (VLDL-C), total cholesterol, triglyceride, and phospholipids), cardiac Troponin (cTnT&I), and Mitochondrial complex III. A noteworthy (p < 0.05) diminish the level of HDL-C, Mitochondrial complex I and II, enzymatic (superoxide dismutase, catalase, and glutathione peroxidase), and nonenzymatic antioxidant (glutathione and total sulfhydryl groups) and PI3k, Akt, and Nrf2 sequence in As treated rats. The western blot, real-time polymerase chain reaction, flowcytometric, and histology studies all corroborated the biochemical findings which revealed significant heart damage in rats. Pretreatment with SFN significantly (p < 0.05) reduced the invitro free radicals, lipid oxidative indicators, mitochondrial complex, lipid profiles, and increased phase II antioxidants in the heart. This result shows that dietary supplementation of SFN protects against As-induced cardiotoxicity via PI3k/Akt/Nrf2 pathway in rats.
砷(As)毒性会产生活性自由基,在心肌病的发展中起着重要作用。本研究旨在探讨萝卜硫素(SFN)是否通过 PI3K/Akt/Nrf2 信号通路对 As 诱导的心脏损伤、氧化应激和线粒体复合体功能障碍起保护作用。将大鼠分为四组,每组 8 只。第 1 组:正常大鼠(对照组);第 2 组:治疗组(5mg/kg 体重);第 3 组:SFN+As 治疗组(80mg/kg 体重+5mg/kg 体重);第 4 组:SFN 组(80mg/kg 体重)。SWOT 将持续 4 周。在中断结束时(28 天),所有大鼠禁食过夜,然后用颈椎脱臼处死。As 给药显著(p<0.05)增加了自由基(O2-、OH-)、脂质过氧化(丙二醛、4-羟壬烯醛)、脂质谱(低密度脂蛋白胆固醇、极低密度脂蛋白胆固醇(VLDL-C)、总胆固醇、甘油三酯和磷脂)、心脏肌钙蛋白(cTnT&I)和线粒体复合物 III。值得注意的是(p<0.05),As 处理大鼠的 HDL-C、线粒体复合物 I 和 II、酶(超氧化物歧化酶、过氧化氢酶和谷胱甘肽过氧化物酶)和非酶抗氧化剂(谷胱甘肽和总巯基)和 PI3k、Akt 和 Nrf2 序列水平降低。Western blot、实时聚合酶链反应、流式细胞术和组织学研究均证实了生化研究结果,表明大鼠心脏受到严重损伤。SFN 预处理显著(p<0.05)降低了体外自由基、脂质氧化指标、线粒体复合体、脂质谱,并增加了心脏中的 II 期抗氧化剂。这一结果表明,膳食补充 SFN 通过 PI3k/Akt/Nrf2 通路在大鼠中对 As 诱导的心脏毒性起保护作用。