Kisaengch'unghak chapchi. The Korean journal of parasitology最新文献_第10页

On Three Species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) from the Pacific Ocean off Vietnam with the Molecular Description of Neoechinorhynchus (N.) dimorphospinus Amin and Sey, 1996. 越南太平洋三种新棘鸟(棘头纲:新棘鸟科)的分子描述及新棘鸟(N.) dimorphospinus Amin and Sey, 1996。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-16 DOI: 10.1645/19-29

O. Amin, M. Sharifdini, R. Heckmann, N. V. Ha

{"title":"On Three Species of Neoechinorhynchus (Acanthocephala: Neoechinorhynchidae) from the Pacific Ocean off Vietnam with the Molecular Description of Neoechinorhynchus (N.) dimorphospinus Amin and Sey, 1996.","authors":"O. Amin, M. Sharifdini, R. Heckmann, N. V. Ha","doi":"10.1645/19-29","DOIUrl":"https://doi.org/10.1645/19-29","url":null,"abstract":"Specimens of 3 species of Neoechinorhynchus Stiles and Hassall, 1905, were collected from a number of species of marine fish along the Pacific coast of Vietnam. New information is added to the descriptions of Neoechinorhynchus (Neoechinorhynchus) longnucleatus Amin, Ha, and Ha, 2011, and its wider host and geographical distribution are reported. Similarly, more descriptive information and host and geographical records are added to our knowledge of Neoechinorhynchus (Hebosoma) manubrianus Amin, Ha, and Ha, 2011, and Neoechinorhynchus (Neoechinorhynchus) dimorphospinus Amin and Sey, 1996 . The latter species was previously known only from the Persian Gulf. The presence of the para-receptacle structure was documented in all 3 species of Neoechinorhynchus reported. The molecular characterization of N. dimorphospinus was carried out using a partial 18S rDNA sequence. The phylogenetic analysis showed that most species of Neoechinorhynchus are very closely related, while N. dimorphospinus was distinct from others in the tree. Metal analysis of hooks of N. dimorphospinus using Energy Dispersive X-ray Analysis also distinguished its characteristic finger print of high phosphorus and calcium and low sulfur levels.","PeriodicalId":17889,"journal":{"name":"Kisaengch'unghak chapchi. The Korean journal of parasitology","volume":"13 1","pages":"606-618"},"PeriodicalIF":0.0,"publicationDate":"2019-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81470953","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: 11

Effects of a Cyanobacterial Toxin on Trematode Cercariae. 一种蓝藻毒素对尾蚴吸虫的作用。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-16 DOI: 10.1645/18-170

M. Milotic, D. Milotic, J. Koprivnikar

{"title":"Effects of a Cyanobacterial Toxin on Trematode Cercariae.","authors":"M. Milotic, D. Milotic, J. Koprivnikar","doi":"10.1645/18-170","DOIUrl":"https://doi.org/10.1645/18-170","url":null,"abstract":"Eutrophication of aquatic habitats has become a global problem, with implications for host-parasite dynamics. Blooms of certain cyanobacteria are associated with cyanotoxins, particularly microcystins such as microcystin-LR (MC-LR). These potent toxins have been shown to adversely affect freshwater fauna and can increase host susceptibility to parasite infection. However, to understand how cyanotoxins influence infection outcomes in nature, it is necessary to investigate whether free-living parasite infectious stages, such as that of trematode cercariae, are also affected given their demonstrated sensitivity to various contaminants. Here we examined the effects of environmentally relevant levels of MC-LR representing relatively high (82 μg/L) and low (11 μg/L) concentrations on the activity and survival of four different types of cercariae ( Echinostoma sp., Cephalogonimus sp., Alaria sp., and an unidentified strigeid type) over 24 hr. Exposure to MC-LR did not affect the activity of any cercarial type, nor was survival reduced. In fact, the strigeid-type cercariae had significantly increased longevity if exposed to either MC-LR solution, with the greatest longevity in the highest concentration. Our results indicate that MC-LR may have opposing effects on aquatic parasites and their hosts, potentially increasing host susceptibility but having a neutral or positive effect on motile infectious stages such as cercariae. Cyanobacterial blooms could thus enhance trematode transmission; however, the effects of other cyanotoxins must be studied, as well as a broader range of host and parasite species.","PeriodicalId":17889,"journal":{"name":"Kisaengch'unghak chapchi. The Korean journal of parasitology","volume":"8 1","pages":"598-605"},"PeriodicalIF":0.0,"publicationDate":"2019-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82085389","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: 6

A Philophthalmid Eyefluke from a Human in Japan. 一株日本人的眼吸虫。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-16 DOI: 10.1645/19-53

Chitoshi Sato, M. Sasaki, H. Nabeta, Masae Tomioka, S. Uga, M. Nakao

引用次数: 3

A Seroepidemiological Survey of Theileria equi and Babesia caballi in Horses in Mongolia. 蒙古马群马伊勒菌和巴贝斯虫血清流行病学调查。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-15 DOI: 10.1645/18-189

P. Myagmarsuren, T. Sivakumar, Batsaikhan Enkhtaivan, Batdorj Davaasuren, Myagmar Zoljargal, S. Narantsatsral, Batbold Davkharbayar, B. Mungun-Ochir, B. Battur, N. Inoue, I. Igarashi, B. Battsetseg, N. Yokoyama

{"title":"A Seroepidemiological Survey of Theileria equi and Babesia caballi in Horses in Mongolia.","authors":"P. Myagmarsuren, T. Sivakumar, Batsaikhan Enkhtaivan, Batdorj Davaasuren, Myagmar Zoljargal, S. Narantsatsral, Batbold Davkharbayar, B. Mungun-Ochir, B. Battur, N. Inoue, I. Igarashi, B. Battsetseg, N. Yokoyama","doi":"10.1645/18-189","DOIUrl":"https://doi.org/10.1645/18-189","url":null,"abstract":"Equine piroplasmosis caused by Theileria equi and Babesia caballi is an economically important disease with a worldwide distribution. The objective of the present study was to investigate the seroepidemiology of T. equi and B. caballi in horses reared in various Mongolian provinces. Serum samples prepared from blood collected from horses in 19 Mongolian provinces were screened for antibodies specific to T. equi and B. caballi using enzyme-linked immunosorbent assays based on recombinant forms of T. equi merozoite antigen-2 and the B. caballi 48-kDa merozoite rhoptry protein, respectively. Of 1,282 horses analyzed, 423 (33%) and 182 (14.2%) were sero-positive for T. equi and B. caballi, respectively. Additionally, 518 (40.4%) were positive for at least 1 parasite species, of which 87 (16.8%) were co-infected with both parasites. Both T. equi and B. caballi were detected in all surveyed provinces, and on a per province basis the positive rates ranged from 19.0 to 74.2% and 4.5 to 39.8%, respectively. Theileria equi- and B. caballi-positive rates were comparable between male horses (31.9 and 14.1%, respectively) and female horses (34.5 and 14.3%, respectively). However, the positive rates were higher in the >3-yr-old age group (37.7 and 15.6%, respectively) compared with the 1-3-yr-old age group (19.4 and 10.0%, respectively). These findings confirmed that T. equi and B. caballi infections are widespread among horses all over Mongolia, and that horse age is a risk factor for infection in this country. Our results will be useful for designing appropriate control measures to minimize T. equi and B. caballi infections among Mongolian horses.","PeriodicalId":17889,"journal":{"name":"Kisaengch'unghak chapchi. The Korean journal of parasitology","volume":"2039 1","pages":"580-586"},"PeriodicalIF":0.0,"publicationDate":"2019-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91320123","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: 2

Phylogenetic Position and Description of a New Species of Medicinal Leech from the Eastern United States. 美国东部药用水蛭一新种的系统发育定位与描述。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-15 DOI: 10.1645/18-119

Anna J. Phillips, Ricardo Salas-Montiel, S. Kvist, A. Oceguera-Figueroa

引用次数: 4

Comparison of NMRI Schistosoma mansoni Infection in Three Susceptible Laboratory Albino Strains of Biomphalaria glabrata. 3株光秃生物phalaria实验室白化病易感株曼氏血吸虫NMRI感染比较。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-15 DOI: 10.1645/19-23

J. Sullivan

{"title":"Comparison of NMRI Schistosoma mansoni Infection in Three Susceptible Laboratory Albino Strains of Biomphalaria glabrata.","authors":"J. Sullivan","doi":"10.1645/19-23","DOIUrl":"https://doi.org/10.1645/19-23","url":null,"abstract":"Albino strains of Biomphalaria glabrata that are compatible with Schistosoma mansoni are commonly used to investigate snail-schistosome interactions, but whether they are all equally compatible is not known. In this study, compatibility with the Naval Medical Research Institute (NMRI) strain of S. mansoni was compared among 3 widely used albino strains: NMRI (the normal laboratory host for NMRI S. mansoni), M line, and University of Massachusetts Lowell (UML). Compatibility was assessed on the basis of infection prevalence following exposure to miracidia, the histological fate of sporocysts, and mitotic response in the snail amebocyte-producing organ (APO), a component of the internal defense system (IDS). Infection prevalence in UML was nearly identical to that in NMRI but was significantly lower in M line. Although the APO of UML showed no response to infection over the course of 9 days, mitotic activity was elevated in the APO of NMRI and M line, with that in M line being higher and more prolonged than in the APO of resistant BS-90 snails. Finally, hemocyte responses against some small primary sporocysts occurred at 1 and 3 days post-exposure (DPE) in all 3 strains, but in 2 of 5 M line a response also occurred against large primary sporocysts at 6 DPE. Thus, based on infection prevalence and tissue responses, compatibility with NMRI S. mansoni is lowest in M line, whereas UML and NMRI show the same degree of compatibility, despite decades of maintenance of this parasite strain in NMRI snails. The elevated mitotic response in the APO of M line and NMRI snails suggests that a response of the IDS can occur even in a compatible host-parasite relationship.","PeriodicalId":17889,"journal":{"name":"Kisaengch'unghak chapchi. The Korean journal of parasitology","volume":"30 1","pages":"576-579"},"PeriodicalIF":0.0,"publicationDate":"2019-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89546413","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: 6

First Report of the Introduction of an Exotic Tick, Amblyomma coelebs (Acari: Ixodidae), Feeding on a Human Traveler Returning to the United States from Central America. 引进一种外来蜱虫——硬硬蜱(蜱螨目:硬蜱科)，以一名从中美洲返回美国的人类旅行者为食。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-08 DOI: 10.1645/19-74

Goudarz Molaei, Sandor E. Karpathy, T. Andreadis

{"title":"First Report of the Introduction of an Exotic Tick, Amblyomma coelebs (Acari: Ixodidae), Feeding on a Human Traveler Returning to the United States from Central America.","authors":"Goudarz Molaei, Sandor E. Karpathy, T. Andreadis","doi":"10.1645/19-74","DOIUrl":"https://doi.org/10.1645/19-74","url":null,"abstract":"Introduction of ticks into the United States that can carry disease-causing pathogens to humans, companion animals, and wildlife has accelerated in recent years, mostly due to globalization, frequency of travel, and a rise in legal and illegal animal trades. We hereby report for the first time introduction of a live fully engorged Amblyomma coelebs feeding on a human into the United States from Central America. Amblyomma coelebs is geographically distributed in the Neotropical region and reaches the southern states of Mexico. This species is capable of transmitting a number of pathogens of public health and veterinary importance including spotted fever group rickettsiae, raising concern that A. coelebs, if it became established in the United States, might also be able to carry these pathogens. Considering the risks of exotic ticks as vectors of numerous pathogens and their potential to establish new populations under conducive climatic and habitat conditions, rigorous inspection practices of imported livestock and pet animals at ports of entry are vital. It is also important for travelers and practitioners to develop a heightened awareness of the public health risks associated with the unintended importation of exotic ticks and the potential such parasites have for breaching United States biosecurity defenses.","PeriodicalId":17889,"journal":{"name":"Kisaengch'unghak chapchi. The Korean journal of parasitology","volume":"28 1","pages":"571-575"},"PeriodicalIF":0.0,"publicationDate":"2019-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80300583","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: 11

Encapsulation of the Acanthocephalan Corynosoma strumosum (Rudolphi, 1802) LÜHE, 1904, in the Intermediate Host Spinulogammarus ochotensis. 棘头虫(Rudolphi, 1802) LÜHE, 1904，在中间寄主Spinulogammarus ochotensis中的包封。

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-02 DOI: 10.1645/19-22

E. Skorobrekhova, V. Nikishin

引用次数: 6

Low Levels of Polymorphisms and Negative Selection in Plasmodum knowlesi Merozoite Surface Protein 8 in Malaysian Isolates 马来西亚诺氏疟原虫分裂子表面蛋白8的低水平多态性和负选择

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-01 DOI: 10.3347/kjp.2019.57.4.445

Md Atique Ahmed, Hae-Ji Kang, F. Quan

{"title":"Low Levels of Polymorphisms and Negative Selection in Plasmodum knowlesi Merozoite Surface Protein 8 in Malaysian Isolates","authors":"Md Atique Ahmed, Hae-Ji Kang, F. Quan","doi":"10.3347/kjp.2019.57.4.445","DOIUrl":"https://doi.org/10.3347/kjp.2019.57.4.445","url":null,"abstract":"Human infections due to the monkey malaria parasite Plasmodium knowlesi is increasingly being reported from most Southeast Asian countries specifically Malaysia. The parasite causes severe and fatal malaria thus there is a need for urgent measures for its control. In this study, the level of polymorphisms, haplotypes and natural selection of full-length pkmsp8 in 37 clinical samples from Malaysian Borneo along with 6 lab-adapted strains were investigated. Low levels of polymorphism were observed across the full-length gene, the double epidermal growth factor (EGF) domains were mostly conserved, and non-synonymous substitutions were absent. Evidence of strong negative selection pressure in the non-EGF regions were found indicating functional constrains acting at different domains. Phylogenetic haplotype network analysis identified shared haplotypes and indicated geographical clustering of samples originating from Peninsular Malaysia and Malaysian Borneo. This is the first study to genetically characterize the full-length msp8 gene from clinical isolates of P. knowlesi from Malaysia; however, further functional characterization would be useful for future rational vaccine design.","PeriodicalId":17889,"journal":{"name":"Kisaengch'unghak chapchi. The Korean journal of parasitology","volume":"33 1","pages":"445 - 450"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73726164","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: 1

Ten Cases of Taenia saginata Infection Confirmed by Analysis of the Internal Transcribed Spacer 1 rDNA Region in the Republic of Korea 韩国10例猪带绦虫感染的内部转录间隔区1 rDNA分析

Kisaengch'unghak chapchi. The Korean journal of parasitology Pub Date : 2019-08-01 DOI: 10.3347/kjp.2019.57.4.417

Su-Min Song, H. Yun, D. VanBik, Hyun-ha Chang, Sang-Ah Lee, S. Kim, N. Ryoo, D. Eun, N. Lee, Y. Goo, Yeonchul Hong, M. Ock, H. Cha, D. Chung

{"title":"Ten Cases of Taenia saginata Infection Confirmed by Analysis of the Internal Transcribed Spacer 1 rDNA Region in the Republic of Korea","authors":"Su-Min Song, H. Yun, D. VanBik, Hyun-ha Chang, Sang-Ah Lee, S. Kim, N. Ryoo, D. Eun, N. Lee, Y. Goo, Yeonchul Hong, M. Ock, H. Cha, D. Chung","doi":"10.3347/kjp.2019.57.4.417","DOIUrl":"https://doi.org/10.3347/kjp.2019.57.4.417","url":null,"abstract":"From October 2015 to August 2018, tapeworm proglottids were obtained from 10 patients who were residents of Daegu and Gyeongbuk provinces and had a history of raw beef consumption. Most of them had no overseas travel experience. The gravid proglottids obtained from the 10 cases had 15–20 lateral uterine branches. A part of internal transcribed spacer 1 (ITS1) DNA of the 10 cases, amplified by polymerase chain reaction (PCR) and digested with AleI restriction enzyme, produced the same band pattern of Taenia saginata, which differentiated from T. asiatica and T. solium. Sequences of ITS1 and cytochrome c oxidase subunit 1 (cox1) showed higher homology to T. saginata than to T. asiatica and T. solium. Collectively, these 10 cases were identified as T. saginata human infections. As taeniasis is one of the important parasitic diseases in humans, it is necessary to maintain hygienic conditions during livestock farming to avoid public health concerns.","PeriodicalId":17889,"journal":{"name":"Kisaengch'unghak chapchi. The Korean journal of parasitology","volume":"1983 1","pages":"417 - 422"},"PeriodicalIF":0.0,"publicationDate":"2019-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82226082","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: 3