Parazitologiia最新文献_第7页

[Role of the marsh frog tadpoles in the life cycle of Cosmocerca ornata (Nematoda: Cosmocercidae)]. [沼泽蛙蝌蚪在圆尾线虫(线虫纲:圆尾线虫科)生命周期中的作用]。

Parazitologiia Pub Date : 2015-01-01

N Yu Kirillova, A A Kirillov

{"title":"[Role of the marsh frog tadpoles in the life cycle of Cosmocerca ornata (Nematoda: Cosmocercidae)].","authors":"N Yu Kirillova, A A Kirillov","doi":"","DOIUrl":"","url":null,"abstract":"Experimental infestation of the marsh frog tadpoles with the Cosmocerca ornata (Du- jardin, 1845) larvae was conducted. In vitro development of the first, second and third larval stages of the helminth were studied. Tadpoles of different age were infested both i) by feeding larvae to them and ii) by placing them in containers simultaneously with the C. ornata larvae. In both cases dissection revealed the presence of living larvae of the nematode in the tadpoles' intestines. Despite their motility and activity, the I and II larval stages were not invasive; they never persisted inside the tadpoles' digestive tract. In 4-5 days after the second molt, a \"temporary persistence\" was observed. Living larvae were in suppressed condition, motility lowered, further development never occurred. In 3 days occurrence of the III stage nematode larvae lowered drastically. Gradual elimination of the most part of C. ornata larvae was observed. Elimination rate depended on the tadpole developmental stage. Later tadpole stages (those that had already developed arms and legs) were the first to get rid of the nematode larvae--on 7-th day after the infestation. On the 9-th day tadpoles of the early stage (those without limbs) got rid of the larvae. Larvae persisted for the longest time in the intestines of middle-staged tadpoles (with the hind legs)--up to 13 days.","PeriodicalId":76305,"journal":{"name":"Parazitologiia","volume":"49 1","pages":"49-60"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33337969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Parasitological factors impeding the transmission of the agent of babesiosis (Babesia microti) to man from the tick Ixodes persulcatus]. [阻碍巴贝斯虫病病原(微巴贝斯虫)从过狭纹伊蚊传播给人的寄生虫学因素]。

Parazitologiia Pub Date : 2015-01-01

E I Korenberg, V V Nefedova, Yu V Kovalevsky, Yu V Sorokina, N B Gorelova

引用次数: 0

[New data on trematodes of Antarctic fish]. [南极鱼类吸虫的新数据]。

Parazitologiia Pub Date : 2015-01-01

S G Sokolov, I I Gordeev

引用次数: 0

[Dr. Zbigniew Kabata, 17.03.1924-04.07.2014]. 兹比格涅夫·卡巴塔博士，1924年3月17日至2014年7月4日。

Parazitologiia Pub Date : 2015-01-01

引用次数: 0

[Helminth fauna of the bank vole myodes glareolus (Schreber, 1780) in the Kizhi Archipelago]. [基芝群岛浅滩田鼠glareolus (Schreber, 1780)的蠕虫区系]。

Parazitologiia Pub Date : 2015-01-01

S V Bugmyrin, A V Korosov, L A Bespyatova, E P Ieshko

{"title":"[Helminth fauna of the bank vole myodes glareolus (Schreber, 1780) in the Kizhi Archipelago].","authors":"S V Bugmyrin, A V Korosov, L A Bespyatova, E P Ieshko","doi":"","DOIUrl":"","url":null,"abstract":"The present study was aimed to examine the specific features of the helminth fauna in insular populations of the bank vole (Myodes glareolus) in the north of the species range. The material was collected in and nearby the Kizhi Archipelago (Lake Onega, 62°1' N 35°12' E) during August 1997, 2005-2007, 2012 and 2013. Small mammals were trapped on 23 islands (varying from 2 to 15,000 ha) and on the mainland. Helminthological met- hods were applied to examine 301 specimens of M glareolus. Fourteen helminth species were found: trematodes--Skrjabinoplagiorchis vigisi; cestodes--Paranoplocephala omphalodes, P. gracilis, Catenotaenia henttoneni, Taenia mustelae, Cladotaenia globife- ra, Spirometra erinacei; nematodes--Trichocephalus muris, Aonchotheca murissylvatici, Hepaticola hepatica, Heligmosomum mixtum, Heligmosomoides glareoli, Longistriata minuta, Syphacia petrusewiczi. The parasites S. vigisi, S. erinaci, H. hepatica and T. muris were identified in the bank vole in Karelia for the first time. Significant differences were detected between the helminth faunas of local insular populations of the bank vole. A distinctive feature of all small islands was that samples from them lacked the widespread pa- rasitic nematode Heligmosomum mixtum. The studies have confirmed the general trends observed in the parasite fauna of most isolated populations of small mammals: a poorer species diversity and high infestation rates with certain species of parasites. The Kizhi Archipelago is characterized by the specific high abundance of regionally rare parasite species (H hepatica, A. murissylvatici), and by the absence of common parasites (H. mixtum, H. glareoli).","PeriodicalId":76305,"journal":{"name":"Parazitologiia","volume":"49 1","pages":"61-71"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33337966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Role of opisthorchis felineus on induction of bile duct cancer]. 【猫胸肌在胆管癌诱导中的作用】。

Parazitologiia Pub Date : 2015-01-01

G A Maksimova, N A Zhukova, E V Kashina, M N Lvova, A V Katokhin, T G Tolstikova, V A Mordvinov

{"title":"[Role of opisthorchis felineus on induction of bile duct cancer].","authors":"G A Maksimova, N A Zhukova, E V Kashina, M N Lvova, A V Katokhin, T G Tolstikova, V A Mordvinov","doi":"","DOIUrl":"","url":null,"abstract":"Opisthorchis felineus (Trematoda) is widespread in the Russian Federation, especially in Siberia, and other countries of Europe. Infestation of endemic area population with O. felineus reaches 80%. On animal models of the infection of closely related Opisthorchis viverrini combined with the nitrosamines' intake it has been shown that the parasite induces cholangiocarcinoma. However carcinogenic potential of O. felineus is still poorly studied. The present study is aimed to investigate the role of O. felineus in cholangiocarcinoma carcinogenesis in hamster treated additionally by dimethylnitrosamine (DMN). Golden hamsters were divided into 4 groups (15 specimens in the control group and 20 for other groups): (I) untreated control, (II) 12.5 ppm DMN solution intake, (III) infected with 50 metacercariae of O. felineus and (IV) infected with 50 metacercariae of O. felineus and 12.5 ppm DMN solution intake. According to the histological data, in the. O. felineus-infested group significant hyperplastic and dysplastic biliary changes were found considered as a precancerogenic state. Such pathological changes of bile ducts were more severe in group treated with both factors, with cholangiocarcinoma being found out at 18th week in all the animals of this group. These results demonstrate that O. felineus could play promoting role in two-step model in cholangiocarcinoma carcinogenesis and may be used to define the O.felineus group in the International Agency for Research on Cancer classification of agents, mixtures and exposures (IARC categories).","PeriodicalId":76305,"journal":{"name":"Parazitologiia","volume":"49 1","pages":"3-11"},"PeriodicalIF":0.0,"publicationDate":"2015-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33337962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

[Cuticle ultrastructure of the fresh-water horsehair worm Gordionus alpestris (Villot, 1885) (Nematomorpha)]. [淡水马毛虫Gordionus alpestris (Villot, 1885) (Nematomorpha)的表皮超微结构]。

Parazitologiia Pub Date : 2015-01-01

E A Guzeeva, B D Efeykin, V Yu Schmatko, S E Spiridonov

引用次数: 0

[Fine structure of glands forming porous areas (area porosa) in the European forest tick Ixodes rucinus (L.) (Ixodidae, Ixodinae)]. [欧洲森林蜱蜱(硬蜱科，硬蜱科)形成多孔区(孔区)的腺体精细结构]。

Parazitologiia Pub Date : 2014-11-01

S A Leonovich

引用次数: 0

[On the validity of the genus Otidilepis Yamaguti, 1959 (Cestoda: Hymenolepididae) and the classification of the rostellar hooks of its type species, O. tetraciS (Cholodkowsky, 1906)]. [论Otidilepis Yamaguti属的有效性，1959 (cestada: Hymenolepididae)及其模式种O. tetraciS的rostellar钩的分类(Cholodkowsky, 1906)]。

Parazitologiia Pub Date : 2014-11-01

A K Galkin