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Myung-Ki Hwang	3 Articles
Double-stranded RNA virus in Korean Isolate IH-2 of Trichomonas vaginalis Jong Wook Kim, Pyung-Rim Chung, Myung-Ki Hwang, Eun Young Choi Korean J Parasitol 2007;45(2):87-94. Published online June 20, 2007 DOI: https://doi.org/10.3347/kjp.2007.45.2.87 Abstract PDF In this study, we describe Korean isolates of Trichomonas vaginalis infected with double-stranded (ds) RNA virus (TVV). One T. vaginalis isolate infected with TVV IH-2 evidenced weak pathogenicity in the mouse assay coupled with the persistent presence of a dsRNA, thereby indicating a hypovirulence effect of dsRNA in T. vaginalis. Cloning and sequence analysis results revealed that the genomic dsRNA of TVV IH-2 was 4,647 bp in length and evidenced a sequence identity of 80% with the previously-described TVV 1-1 and 1-5, but only a 42% identity with TVV 2-1 and 3 isolates. It harbored 2 overlapping open reading frames of the putative capsid protein and dsRNA-dependent RNA polymerase (RdRp). As previously observed in the TVV isolates 1-1 and 1-5, a conserved ribosomal slippage heptamer (CCUUUUU) and its surrounding sequence context within the consensus 14-nt overlap implied the gene expression of a capsid protein-RdRp fusion protein, occurring as the result of a potential ribosomal frameshift event. The phylogenetic analysis of RdRp showed that the Korean TVV IH-2 isolate formed a compact group with TVV 1-1 and 1-5 isolates, which was divergent from TVV 2-1, 3 and other viral isolates classified as members of the Giardiavirus genus. Citations Citations to this article as recorded by ՏՐԻԽՈՄՈՆԱՍ ՎԱԳԻՆԱԼԻՍ ՎԻՐՈՒՍԻ (TVV) ԱԶԴԵՑՈՒԹՅՈՒՆԸ ԿԱՆԱՆՑ ՄԻԶԱՍԵՌԱԿԱՆ ՏՐԻԽՈՄՈՆԻԱԶԻ ՎՐԱ G.K. Ghardyan MEDICINE, SCIENCE AND EDUCATION.2024; (37): 70. CrossRef Microbial Matryoshka: Addressing the Relationship between Pathogenic Flagellated Protozoans and Their RNA Viral Endosymbionts (Family Totiviridae) Alexandra Ibañez-Escribano, Maria Teresa Gomez-Muñoz, Marta Mateo, Cristina Fonseca-Berzal, Esperanza Gomez-Lucia, Raquel Garcia Perez, Jose M. Alunda, Javier Carrion Veterinary Sciences.2024; 11(7): 321. CrossRef Multiple Regulations of Parasitic Protozoan Viruses: A Double-Edged Sword for Protozoa Zhiteng Zhao, Xin Li, Nan Zhang, Jianhua Li, Na Zhao, Mengyao Gao, Xichen Zhang, Xiaocen Wang, Panpan Zhao, Lu Li, Min Sun, Lili Cao, Pengtao Gong, Vinayaka R. Prasad mBio.2023;[Epub] CrossRef PROTOZOONLARIN VİRAL ENDOSİMBİYONTLARI Ayşegül DAMLAPINAR, Kader YILDIZ Veteriner Farmakoloji ve Toksikoloji Derneği Bülteni.2023; 14(1): 25. CrossRef Discovery of a Novel Species of Trichomonasvirus in the Human Parasite Trichomonas vaginalis Using Transcriptome Mining Austin Manny, Carrie Hetzel, Arshan Mizani, Max Nibert Viruses.2022; 14(3): 548. CrossRef A systematic review and meta-analysis on the global status of Trichomonas vaginalis virus in Trichomonas vaginalis Saeed Bahadory, Selva Aminizadeh, Ali Taghipour, Farah Bokharaei-Salim, Khadijeh Khanaliha, Mohammad Hossein Razizadeh, Alireza Soleimani, Leila beikzadeh, Alireza Khatami Microbial Pathogenesis.2021; 158: 105058. CrossRef Biosynthesis Products of Pseudomonas sp. PS-17 Strain Metabolites. 1. Obtaining and Thermal Characteristics Ihor Semeniuk, Viktoria Kochubei, Volodymyr Skorokhoda, Tetyana Pokynbroda, Halyna Midyana, Elena Karpenko, Viktor Melnyk Chemistry & Chemical Technology.2020; 14(1): 26. CrossRef Trichomonas vaginalis virus: a review of the literature KJ Graves, AP Ghosh, PJ Kissinger, CA Muzny International Journal of STD & AIDS.2019; 30(5): 496. CrossRef Novel Partitivirus Enhances Virulence of and Causes Aberrant Gene Expression in Talaromyces marneffei Susanna K. P. Lau, George C. S. Lo, Franklin W. N. Chow, Rachel Y. Y. Fan, James J. Cai, Kwok-Yung Yuen, Patrick C. Y. Woo, John W. Taylor mBio.2018;[Epub] CrossRef Trichomonas vaginalis infection in symbiosis with Trichomonasvirus and Mycoplasma Raina Fichorova, Jorge Fraga, Paola Rappelli, Pier Luigi Fiori Research in Microbiology.2017; 168(9-10): 882. CrossRef Double-stranded RNA viral infection of Trichomonas vaginalis (TVV1) in Iranian isolates Khadijeh Khanaliha, Hossein Masoumi-Asl, Farah Bokharaei-Salim, Azardokht Tabatabaei, Mehri Naghdalipoor Microbial Pathogenesis.2017; 109: 56. CrossRef Molecular characterization of double-stranded RNA virus in Trichomonas vaginalis Egyptian isolates and its association with pathogenicity Eman K. El-Gayar, Amira B. Mokhtar, Wael A. Hassan Parasitology Research.2016; 115(10): 4027. CrossRef High rates of double-stranded RNA viruses and Mycoplasma hominis in Trichomonas vaginalis clinical isolates in South Brazil Débora da Luz Becker, Odelta dos Santos, Amanda Piccoli Frasson, Graziela de Vargas Rigo, Alexandre José Macedo, Tiana Tasca Infection, Genetics and Evolution.2015; 34: 181. CrossRef Genetic characterization of three Cuban Trichomonas vaginalis virus. Phylogeny of Totiviridae family Jorge Fraga, Lazara Rojas, Idalia Sariego, Ayme Fernández-Calienes Infection, Genetics and Evolution.2012; 12(1): 113. CrossRef Identification and characterization of a type III Trichomonas vaginalis virus in the protozoan pathogen Trichomonas vaginalis Irina N. Bessarab, Rui Nakajima, Hsing-Wei Liu, Jung-Hsiang Tai Archives of Virology.2011; 156(2): 285. CrossRef Clinical Isolates of Trichomonas vaginalis Concurrently Infected by Strains of Up to Four Trichomonasvirus Species (Family Totiviridae) Russell P. Goodman, Taylor S. Freret, Tomasz Kula, Alexander M. Geller, Megan W. T. Talkington, Vanessa Tang-Fernandez, Olimpia Suciu, Aleksander A. Demidenko, Said A. Ghabrial, David H. Beach, Bibhuti N. Singh, Raina N. Fichorova, Max L. Nibert Journal of Virology.2011; 85(9): 4258. CrossRef 15,865 View 71 Download Crossref Complement-mediated tail degradation of Neodiplostomum seoulense cercariae Yun-Kyu Park, Myung-Ki Hwang, Yun-Jung Jung Korean J Parasitol 2006;44(2):127-131. Published online June 20, 2006 DOI: https://doi.org/10.3347/kjp.2006.44.2.127 Abstract PDF The furcocercus cercariae of Neodiplostomum seoulense (Digenea: Neodiplostomidae) penetrate the skins of tadpoles and shed their tails. The speculated mechanism of this tail loss was physical efforts required to produce a vigorous zigzag motion during skin penetration; no other mechanism has been proposed. We examined the relationship between the host serum and cercarial tail loss. Cercariae of N. seoulense were collected from experimentally infected Segmentina hemisphaerula, and lots of 300 cercariae were cultured in medium 199 contained several types of sera. Cercarial tail degradation was induced in all media, but all the cercariae cultured except those cultured in media containing fetal bovine serum (FBS) died within 48 hr. After 72 hr cultivation in media containing FBS, cercarial tail degradation was induced in 67.0%; in continuous cultivation 13.3% of larvae survived for 7 days. Tail degradation did not occur in the absence of serum and when serum was heat inactivated at 56℃ for 30 min. The addition of 20 mM ethylenediaminetetraacetic acid (EDTA) blocked cercarial tail degradation completely. Moreover, the addition of 20 mM MgCl₂ restored tail degradation blocked by EDTA. These results suggest that the alternative complement pathway is related with the N. seoulense cercarial tail degradation induced by serum. 7,341 View 61 Download Austropeplea ollula (Pulmonata: Lymnaeidae): A new molluscan intermediate host of a human intestinal fluke, Echinostoma cinetorchis (Trematoda: Echinostomatidae) in Korea Pyung-Rim Chung, Younghun Jung, Yun-Kyu Park, Myung-Ki Hwang Korean J Parasitol 2001;39(3):247-253. Published online September 30, 2001 DOI: https://doi.org/10.3347/kjp.2001.39.3.247 Abstract PDF Three freshwater snail species of the family Lymnaeidae have been reported from Korea, Radix auricularia coreana, Austropeplea ollula and Fossaria truncatula. Out of 3 lymnaeid snail species, A. ollula was naturally infected with the Echinostoma cinetorchis cercariae (infection rate = 0.7%). In the experiments with the laboratory-bred snails, F. truncatula as well as A. ollula was also susceptible to the E. cinetorchis miracidia with infection rates of 25% and 40%, respectively. All of three lymnaeid snail species exposed to the E. cinetorchis cercariae were infected with the E. cinetorchis metacercariae. It is evident that A. ollula acts as the first molluscan intermediate host of E. cinetorchis in Korea, and F. truncatula may be a possible candidate for the first intermediate host of this intestinal fluke. Also, three lymnaeid snail species targeted were experimentally infected with E. cinetorchis metacercariae. Citations Citations to this article as recorded by The Nuclear Ribosomal Transcription Units of Two Echinostomes and Their Taxonomic Implications for the Family Echinostomatidae Yu Cao, Ye Li, Zhong-Yan Gao, Bo-Tao Jiang Biology.2025; 14(8): 1101. CrossRef Risk of invasion and disease transmission by the Australasian freshwater snail Orientogalba viridis (Lymnaeidae): a field and experimental study Antonio A. Vázquez, Elodie Chapuis, Jorge Sánchez, Pilar Alda, Dominique Faugère, Mónica Sánchez, Léa Souq, Joaquín López-Soriano, Sergio Quiñonero-Salgado, Nicolás Bonel, Jean-Pierre Pointier, Annia Alba, Sylvie Hurtrez-Boussès Parasites & Vectors.2024;[Epub] CrossRef Morphology and Molecular Identification of Echinostoma revolutum and Echinostoma macrorchis in Freshwater Snails and Experimental Hamsters in Upper Northern Thailand Preeyaporn Butboonchoo, Chalobol Wongsawad, Pheravut Wongsawad, Jong-Yil Chai The Korean Journal of Parasitology.2020; 58(5): 499. CrossRef Examining the phylogeny of the Australasian Lymnaeidae (Heterobranchia: Pulmonata: Gastropoda) using mitochondrial, nuclear and morphological markers Louise Puslednik, Winston F. Ponder, Mark Dowton, Andrew R. Davis Molecular Phylogenetics and Evolution.2009; 52(3): 643. CrossRef 8,125 View 79 Download Crossref