毒理性
鉴定和使用:欧勒安酸是一种固体。它是一种在植物欧勒安德(普通夹竹桃)和秘鲁欧勒安德(黄色夹竹桃)中发现的强心苷。人类暴露和毒性:摄入欧勒安酸会导致恶心、呕吐、腹痛、腹泻、心律失常和高血压。在夹竹桃中毒的情况下,瞳孔散大通常伴随着眩晕、抽搐、昏迷和心动过缓。意外摄入可能导致心脏心律失常甚至死亡。已有多起致命和非致命中毒的报道。动物研究:在夹竹桃生长的地区,马科动物腹痛应该将夹竹桃中毒作为鉴别诊断,特别是当同时检测到氮质血症或心脏心律失常时。生态毒性研究:对于淡水鱼C. punctatus来说,暴露于亚致死剂量的欧勒安酸24小时和96小时,会导致肝脏和肌肉组织中的总蛋白、总游离氨基酸、核酸、糖原、丙酮酸、乳酸以及酶蛋白酶、磷酸酶、丙氨酸转氨酶、天冬氨酸转氨酶和乙酰胆碱酯酶活性显著变化。
IDENTIFICATION AND USE: Oleandrin is a solid. It is a cardiac glycoside found in plants Nerium oleander (common oleander) and Thevetia peruviana (yellow oleander). HUMAN EXPOSURE AND TOXICITY: Ingestion of either oleandrin results in nausea, vomiting, abdominal pain, diarrhea, dysrhythmias, and hyperkalemia. In poisoning by oleander, mydriasis characteristically accompanies vertigo, convulsions, coma, and bradycardia. Accidental ingestion can cause cardiac arrhythmias and even death. Several cases of fatal and non-fatal poisoning have been reported. ANIMAL STUDIES: Oleander intoxication should be a differential diagnosis for equids with colic in geographic areas where oleander is found, especially when azotemia or cardiac arrhythmias are detected concurrently. ECOTOXICITY STUDIES: For freshwater fish C. punctatus exposure to sub-lethal doses of oleandrin for 24 hr and 96 hr caused significant alteration in the level of total protein, total free amino acid, nucleic acid, glycogen, pyruvate, lactate and enzyme protease, phosphatases, alanine aminotransferase, aspartate aminotransferase and acetylcholinesterase activity in liver and muscle tissues.
来源:Hazardous Substances Data Bank (HSDB)