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首页> 外文期刊>Indian Journal of Ecology >Effect of Pollutants of the Tigris River Water on Activity of the Acetylcholinesterase Enzyme in Brain Tissues of Cyprinus carpio and Condrostoma regium
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Effect of Pollutants of the Tigris River Water on Activity of the Acetylcholinesterase Enzyme in Brain Tissues of Cyprinus carpio and Condrostoma regium

机译：Tigris河水污染物对鲤鱼肠道脑组织乙酰胆碱酯酶酶活性的影响

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摘要

This study was conducted to record effect of lead and cadmium in the Tigris River on the activity of the acetylcholinesterase (AChE) enzyme in the brain tissue of local fish Cyprinus carpio and Condrostoma regium. The effect on physical and chemical properties was also estimated. Three sites were chosen in the study area representing the entering of the river to the city of Mosul (Wana region), the city center (after the estuary of Al-Khosar), and the south of the city (Al-Busaif area). Water sampleswere collected monthly forthe period from June 2018 until the end of March 2019 and fish were collected from the same sites. The results showed fluctuation in water temperature, electrical conductivity, pH, total hardness, dissolved oxygen concentration, and the biochemical oxygen demand as well as the concentration of accumulated heavy metals shown by lead and cadmium, which are the most polluting heavy metals in river water. There was significant inhibition of the activity of the acetylcholinesterase(AChE) enzyme in the brain tissue of both local fish during the autumn, winter and spring seasons. This study concludes that the toxic activity of different pollutants leads to inhibit the activity of the AChE enzyme in the brain, therefore, it can be used as a guide forthe impact of pollutants on aquatic organisms such as fish.
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