RHODNIUS-PROLIXUS - SALIVARY ANTIHEMOSTATIC COMPONENTS DECREASE WITH TRYPANOSOMA-RANGELI INFECTION
RHODNIUS-PROLIXUS - SALIVARY ANTIHEMOSTATIC COMPONENTS DECREASE WITH TRYPANOSOMA-RANGELI INFECTION
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DOI：
10.1006/expr.1994.1030
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发表时间：
1994-05-01
影响因子：
2.1
通讯作者：
RIBEIRO, JMC
中科院分区：
文献类型：
--
作者：
GARCIA, ES;MELLO, CB;RIBEIRO, JMC
本文研究了感染兰氏锥虫的长吻红鱼的摄食行为和唾液的某些抗止血特性，并与未感染的对照组进行了比较。当以兔子为食时，与对照组相比，唾液腺感染的昆虫更频繁地刺穿宿主皮肤，抽血更少，而且速度更低。当通过膜进料器进行进料时，没有观察到这些差异。唾液腺匀浆从感染的昆虫，在30天后喂养/感染，有显着较低的总蛋白/唾液腺对的量和抗凝活性低于对照组。此外，感染的唾液腺表现出显着降低腺苷三磷酸双磷酸酶的活动和活性氮组相比，控制。结论：T. rangeli通过影响唾液的抗止血特性而削弱载体定位血管的能力，从而提高了将寄生虫皮内接种到哺乳动物宿主中的可能性。(C)1994年出版社出版。
Feeding behavior and some antihemostatic properties of the saliva of Rhodnius prolixus infected with Trypanosoma rangeli were studied and compared with those of uninfected controls. Insects with salivary gland infection pierced host skin more often and drew less blood and at a lower rate than controls when feeding on a rabbit. None of these differences was observed when feeding was performed through a membrane feeder. Salivary gland homogenates from infected insects, at 30 days after feeding/infection, had a significantly lower amount of total protein/salivary gland pair and less anticoagulant activity than controls. Also, infected salivary glands exhibited significantly reduced apyrase activities and reactive nitrogen groups when compared to controls. It is concluded that salivary infection of T. rangeli impairs the ability of the vector to locate blood vessels by affecting salivary antihemostatic properties, thus enhancing the possibility of intradermal inoculation of parasites into the mammalian host. (C) 1994 Academic Press, Inc.