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Changes in metabolic enzymes, cortisol and glucose concentrations of Beluga (Huso huso) exposed to dietary methylmercury

机译:饮食中甲基汞暴露的白海豚(Huso huso)的代谢酶,皮质醇和葡萄糖浓度的变化

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In this paper, effects of dietary methylmercury (MeHg) on several blood biochemical parameters including GLU (glucose), LDH (lactate dehydrogenase), AST (aspartate aminotransferase), ALT (alanine aminotransferase), ALP (alkaline phosphatase) and cortisol were investigated in the Beluga sturgeon (Huso huso). Beluga juveniles were fed for 32 days on four diets containing MeHg (control: 0.04 mg kg−1; low: 0.76 mg kg−1; medium: 7.88 mg kg−1; and high 16.22 mg kg−1 treatment). Significant increases (P < 0.05) were observed in all biochemical parameters, except ALP levels, which decreased significantly (P < 0.05) compared to the control group with either dose- or time-dependent effects. These results suggest that long-term dietary MeHg exposure may affect metabolic enzyme activity and glucose levels in Belugas. These findings provide useful information for environmental and fishery officials to apply in future decisions for managing fish resources in Caspian Sea.
机译:本文研究了膳食甲基汞(MeHg)对几种血液生化参数的影响,包括GLU(葡萄糖),LDH(乳酸脱氢酶),AST(天冬氨酸转氨酶),ALT(丙氨酸转氨酶),ALP(碱性磷酸酶)和皮质醇。白鲸uga鱼(Huso huso)。用四种含MeHg的饲料喂养白control幼鱼32天(对照:0.04 mg kg -1 ;低:0.76 mg kg -1 ;中:7.88 mg kg > -1 ;高16.22 mg kg -1 处理)。在所有生化参数中均观察到显着增加(P <0.05),但ALP水平除外,与对照组相比,ALP水平显着降低(P <0.05),具有剂量或时间依赖性。这些结果表明,长期饮食中的甲基汞暴露可能会影响白海豚的代谢酶活性和葡萄糖水平。这些发现为环境和渔业官员提供了有用的信息,可将其应用于管理里海鱼类资源的未来决策中。

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