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牛黄曲霉毒素中毒:临床发现和生化改变。

Aflatoxicosis in cattle: clinical findings and biochemical alterations.

机构信息

Department of Animal Medicine, Faculty of Veterinary Medicine, Aswan University, Aswan, 37916, Egypt.

Department of Clinical Pathology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, 44511, Egypt.

出版信息

Environ Sci Pollut Res Int. 2020 Oct;27(28):35526-35534. doi: 10.1007/s11356-020-09489-3. Epub 2020 Jun 27.

Abstract

Aflatoxicosis is a serious health condition resulted from aflatoxin (AF)-producing fungi. Major health threats resulted from AFs and reflect on the livestock industry with great economic losses. There are limited scientific evidences concerning the AFs in ruminant, therefore it is important to evaluate AFs health hazards in cattle. Here, we investigate biochemical, oxidative stress, and postmortem changes associated with unexpected acute bovine aflatoxicosis. Seventy-two cattle were suffered from aflatoxisocis. Depression and inappetence were predominant clinical findings of the diseased animals. Analysis of feedstuffs revealed presence of aflatoxin B1 (AFB1). The AF-intoxicated animals showed a significant increase in alanine amino transferase (ALT), aspartate amino transferase (AST), alkaline phosphatase (ALP), serum creatinine (SCr), catalase (CAT), and malondialdehyde (MDA) levels. Moreover, a significant decrease in total protein (TP), magnesium (Mg), and reduced glutathione (GSH) were also seen. Hepatomegaly, enlarged gallbladder as well as congestion of the intestine and kidney were observed. This study elucidates the critical and constructive measurements needed for the prevention of the AFs hazardous effects to livestock for the future control of AF outbreaks. Conducting series of diagnostic assays reflect the marked health condition alterations in the biochemical and antioxidant status of the AF-intoxicated cattle.

摘要

黄曲霉毒素中毒是一种由产黄曲霉毒素(AF)真菌引起的严重健康问题。AF 主要对畜牧业造成健康威胁,并导致重大经济损失。关于反刍动物中的 AF 研究证据有限,因此评估牛的 AF 健康危害很重要。在这里,我们研究了与意外急性牛黄曲霉毒素中毒相关的生化、氧化应激和死后变化。72 头牛患有黄曲霉毒素中毒。患病动物的主要临床发现是抑郁和食欲不振。饲料分析显示存在黄曲霉毒素 B1(AFB1)。AF 中毒动物的丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST)、碱性磷酸酶(ALP)、血清肌酐(SCr)、过氧化氢酶(CAT)和丙二醛(MDA)水平显著升高。此外,总蛋白(TP)、镁(Mg)和还原型谷胱甘肽(GSH)也显著降低。肝肿大、胆囊增大以及肠和肾充血。本研究阐明了为防止 AF 对畜牧业的危害而需要采取的关键和建设性措施,以未来控制 AF 爆发。进行一系列诊断检测反映了 AF 中毒牛的生化和抗氧化状态的明显健康状况改变。

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