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首页> 外文期刊>Fish Physiology and Biochemistry >Alterations in serum electrolytes, antioxidative enzymes and haematological parameters of Labeo rohita on short-term exposure to sublethal dose of nitrite
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Alterations in serum electrolytes, antioxidative enzymes and haematological parameters of Labeo rohita on short-term exposure to sublethal dose of nitrite

机译：短时暴露于亚致死剂量的亚硝酸盐时，Labeo rohita的血清电解质，抗氧化酶和血液学参数的变化

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摘要

An experiment was conducted to study the effects of short-term exposure to sublethal levels of nitrite on electrolyte regulation, antioxidative enzymes and haematological parameters in Labeo rohita juveniles. The fishes were exposed to graded levels of nitrite (0–15 mg l−1) for different duration (0, 12, 24, 48 and 96 h). The 96-h LC50 value for L. rohita (avg. wt, 66.5 ± 0.5 g) was found to be 11.28 mg l−1. Activities of antioxidative enzymes (catalase and superoxide dismutase), acetylcholine esterase (AChE) and methaemoglobin reductase, serum electrolytes (sodium, potassium and chloride), haematological parameters and blood glucose level significantly varied (P 0.05) in a dose-dependent manner. With increasing nitrite concentration and exposure period, a progressive reduction in the total erythrocyte count and haemoglobin were observed. With increase in nitrite concentration, a significant (P 0.05) increase in activities was evidenced in catalase and superoxide dismutase in liver as well as gill, methaemoglobin reductase in blood, while progressive decline in AChE activity in brain was recorded. The serum sodium and chloride content showed a progressive decline, while potassium showed an increasing trend upon increase in nitrite concentration. The serum K+ and Cl− after 96-h exposure demonstrated a linear relationship (Y = 0.221x + 2.542, R 2 = 0.938, P 0.01 and Y = −5.760x + 129.5, R 2 = 0.952, P 0.01, respectively) with nitrite concentrations. This study revealed that nitrite exposure causes alteration in all measured tissue enzymes, serum electrolytes and haematological parameters.
机译：进行了一项实验，以研究短期暴露于亚致死水平的亚硝酸盐对罗汉鱼幼体电解质调节，抗氧化酶和血液学参数的影响。鱼类在不同的持续时间（0、12、24、48和96小时）中暴露于分级的亚硝酸盐水平（0–15 mg l-1 ）。六味乳杆菌的96h LC50值（平均重量，66.5±0.5 g）为11.28 mg l-1 。抗氧化酶（过氧化氢酶和超氧化物歧化酶），乙酰胆碱酯酶（AChE）和血红蛋白还原酶，血清电解质（钠，钾和氯化物），血液学参数和血糖水平的活性均呈剂量依赖性变化（P <0.05）。随着亚硝酸盐浓度和暴露时间的增加，观察到总红细胞计数和血红蛋白逐渐减少。随着亚硝酸盐浓度的增加，肝脏过氧化氢酶和超氧化物歧化酶以及血液中的g，血红蛋白还原酶的过氧化氢酶和超氧化物歧化酶活性显着增加（P <0.05），而脑中AChE活性逐渐下降。随着亚硝酸盐浓度的增加，血清钠和氯化物含量呈逐渐下降趋势，而钾离子则呈上升趋势。暴露96h后的血清K + 和Cl-呈线性关系（Y = 0.221x + 2.542，R 2 = 0.938，P <0.01和Y = −5.760x +亚硝酸盐浓度为129.5，R 2 = 0.952，P <0.01）。这项研究表明，亚硝酸盐暴露会导致所有测得的组织酶，血清电解质和血液学参数发生变化。

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  • 来源
    《Fish Physiology and Biochemistry》 |2012年第5期|p.1355-1365|共11页
  • 作者

    Alexander Ciji; N. P. Sahu; A. K. Pal; S. Dasgupta; M. S. Akhtar;

  • 作者单位

    Division of Fish Nutrition, Biochemistry and Physiology, Central Institute of Fisheries Education, Fisheries University Road, Versova, 400061, Mumbai, India;

    Division of Fish Nutrition, Biochemistry and Physiology, Central Institute of Fisheries Education, Fisheries University Road, Versova, 400061, Mumbai, India;

    Division of Fish Nutrition, Biochemistry and Physiology, Central Institute of Fisheries Education, Fisheries University Road, Versova, 400061, Mumbai, India;

    Division of Fish Nutrition, Biochemistry and Physiology, Central Institute of Fisheries Education, Fisheries University Road, Versova, 400061, Mumbai, India;

    Division of Fish Nutrition, Biochemistry and Physiology, Central Institute of Fisheries Education, Fisheries University Road, Versova, 400061, Mumbai, India;

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  • 关键词

    Nitrite; Labeo rohita; Electrolytes; Cortisol; Methaemoglobin reductase;

    机译：亚硝酸盐;Labeo rohita;电解质;皮质醇;甲基血红蛋白还原酶;

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