Blood Chemical Changes in Cotton Rats, Sigmodon hispidus, Infected with Parastrongylus costaricensis (Nematoda: Angiostrongyloidea)

J. Ubelaker, L. Wilkerson, J. Leveson, A. Marengo-Rowe
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引用次数: 3

Abstract

Abstract. Serum analytes of adult laboratory-raised cotton rats, Sigmodon hispidus, infected with Parastrongylus costaricensis were compared with those of ageand sexmatched control animals. Parasitism produced significant longand short-term changes in some analytes. Long-term changes included reductions in levels of sodium, chloride, creatinine, triglycerides, and calcium as well as elevation of lactate dehydrogenase (LDH) levels that occurred during the first 32 days of the infection. Short-term changes were correlated to specific developmental stages of the life cycle of the parasite. Thus, immediately after infection (when the third-stage larvae occur in mesenteric lymph nodes and vessels), an increase occurred in the levels of bilirubin, globulins, and proteins. As young juvenile worms matured in the mesenteric vasculature, globulin levels had a tendency to rise, and the elevation became significant at day 16. Egg laying was accompanied by decreases in levels of alkaline phosphatase (AP) and alanine aminotransferase (ALT). Hatching of eggs and passage of first-stage larvae through gut tissues had the most profound effect. At day 24, a dynamic decrease occurred in LDH, ALT, and aspartate aminotransferase (AST) while a downward drift in AP occurred. An electrolyte disturbance occurred in which potassium (K+ ) levels decreased (day 24) and then rebounded (day 28) while sodium (Na+) levels normalized and then declined. Changes were not observed in levels of creatinine phosphokinase (CPK), uric acid, carbon dioxide (CO2), glucose, protein, and cholesterol.
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感染costaric副圆线虫(线虫:管圆线虫科)的棉大鼠血液化学变化
摘要对感染了costaric副圆线虫的成年实验室养棉大鼠进行血清分析,并与年龄和性别匹配的对照动物进行比较。寄生对某些分析物产生了显著的长期和短期变化。长期变化包括在感染的前32天内钠、氯、肌酐、甘油三酯和钙水平的降低以及乳酸脱氢酶(LDH)水平的升高。短期变化与寄生虫生命周期的特定发育阶段有关。因此,感染后(当第三期幼虫出现在肠系膜淋巴结和血管中时),胆红素、球蛋白和蛋白质水平立即增加。随着幼虫在肠系膜血管中成熟,球蛋白水平有上升的趋势,并在第16天显著升高。产蛋时,碱性磷酸酶(AP)和丙氨酸转氨酶(ALT)水平降低。卵的孵化和第一期幼虫通过肠道组织的影响最为深远。在第24天,LDH、ALT和谷草转氨酶(AST)出现动态下降,而AP出现下降趋势。电解质紊乱,钾(K+)水平下降(第24天),然后反弹(第28天),而钠(Na+)水平恢复正常,然后下降。在肌酐磷酸激酶(CPK)、尿酸、二氧化碳(CO2)、葡萄糖、蛋白质和胆固醇水平未观察到变化。
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