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Korean Journal of Parasitology

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https://www.readbyqxmd.com/read/29320825/practical-algorisms-for-pcr-rflp-based-genotyping-of-echinococcus-granulosus-sensu-lato
#1
Hye-Jin Kim, Tae-Soon Yong, Myeong Heon Shin, Kyu-Jae Lee, Gab-Man Park, Uktamjon Suvonkulov, Dmitriy Kovalenko, Hak Sun Yu
Echinococcus granulosus sensu lato (s.l.) is a causative agent of cystic echinococcosis or cystic hydatid disease in humans and domestic and wild animals. The disease is a serious health problem in countries associated with poverty and poor hygiene practices, particularly in livestock raising. We introduced a practical algorism for genotyping the parasite, which may be useful to many developing countries. To evaluate the efficiency of the algorism, we genotyped 3 unknown strains isolated from human patients...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320824/seroprevalence-of-dirofilaria-immitis-in-cats-from-liaoning-province-northeastern-china
#2
Honglie Hou, Lili Cao, Wenzhi Ren, Dansheng Wang, He Ding, Juan You, Xinhua Yao, Hang Dong, Yanbing Guo, Shuxian Yuan, Xichen Zhang, Pengtao Gong
The present study was performed to investigate the seroprevalence and risk factors for Dirofilaria immitis infection in cats from Liaoning province, northeastern China. From October 2014 to September 2016, sera of 651 cats, including 364 domestic cats and 287 feral cats (332 females and 319 males) were assessed. They were tested for the presence of D. immitis antigen using SNAP Heartworm RT test kit. In this population, the average prevalence was 4.5%. Age and rearing conditions (feral or domestic) were found to be associated with the prevalence of D...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320823/first-blindness-cases-of-horses-infected-with-setaria-digitata-nematoda-filarioidea-in-the-republic-of-korea
#3
Jihun Shin, Kyu-Sung Ahn, Guk-Hyun Suh, Ha-Jung Kim, Hak-Sub Jeong, Byung-Su Kim, Eunsang Choi, Sung-Shik Shin
Ocular setariases of cattle were reported but those of equine hosts have never been reported in the Republic of Korea (Korea). We found motile worms in the aqueous humor of 15 horses (Equus spp.) from 12 localities in southern parts of Korea between January 2004 and November 2017. After the affected animals were properly restrained under sedation and local anesthesia, 10 ml disposable syringe with a 16-gauge needle was inserted into the anterior chamber of the affected eye to successfully remove the parasites...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320822/antimalarial-activity-of-c-10-substituted-triazolyl-artemisinin
#4
Gab-Man Park, Hyun Park, Sangtae Oh, Seokjoon Lee
We synthesized C-10 substituted triazolyl artemisinins by the Huisgen cycloaddition reaction between dihydroartemisinins (2) and variously substituted 1, 2, 3-triazoles (8a-8h). The antimalarial activities of 32 novel artemisinin derivatives were screened against a chloroquine-resistant parasite. Among them, triazolyl artemisinins with electron-withdrawing groups showed stronger antimalarial activities than those shown by the derivatives having electron-donating groups. In particularly, m-chlorotriazolyl artemisinin (9d-12d) showed antimalarial activity equivalent to that of artemisinin and could be a strong drug candidate...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320821/a-case-of-biliary-ascariasis-in-korea
#5
Jun-Ho Choi, Min Seo
Biliary ascariasis is still the leading cause of surgical complication of ascariasis, though its incidence has been dramatically reduced. Herein, we report a case of biliary ascariasis for the purpose of enhancing awareness of parasitic infections as a possible cause. A 72-year-old male visited the emergency room of Dankook University Hospital on 12 July 2015, complaining of right-upper-quadrant pain. By endoscopic retrograde cholangiopancreatography (ERCP), a tubular filling defect in the right hepatic duct was detected...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320820/first-molecular-characterization-of-hypoderma-actaeon-in-cattle-and-red-deer-cervus-elaphus-in-portugal
#6
Haroon Ahmed, Sérgio Ramalho Sousa, Sami Simsek, Sofia Anastácio, Seyma Gunyakti Kilinc
Hypoderma spp. larvae cause subcutaneous myiasis in several animal species. The objective of the present investigation was to identify and characterize morphologically and molecularly the larvae of Hypoderma spp. collected from cattle (Bos taurus taurus) and red deer (Cervus elaphus) in the district of Castelo Branco, Portugal. For this purpose, a total of 8 larvae were collected from cattle (n=2) and red deer (n=6). After morphological identification of Hypoderma spp. larvae, molecular characterization was based on PCR-RFLP and mitochondrial CO1 gene sequence analysis...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320819/molecular-and-biochemical-characterization-of-opisthorchis-viverrini-calreticulin
#7
Wanlapa Chaibangyang, Amornrat Geadkaew-Krenc, Suksiri Vichasri-Grams, Smarn Tesana, Rudi Grams
Calreticulin (CALR), a multifunctional protein thoroughly researched in mammals, comprises N-, P-, and C-domain and has roles in calcium homeostasis, chaperoning, clearance of apoptotic cells, cell adhesion, and also angiogenesis. In this study, the spatial and temporal expression patterns of the Opisthorchis viverrini CALR gene were analyzed, and calcium-binding and chaperoning properties of recombinant O. viverrini CALR (OvCALR) investigated. OvCALR mRNA was detected from the newly excysted juvenile to the mature parasite by RT-PCR while specific antibodies showed a wide distribution of the protein...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320818/zoonotic-trematode-metacercariae-in-fish-from-yangon-myanmar-and-their-adults-recovered-from-experimental-animals
#8
Jong-Yil Chai, Woon-Mok Sohn, Byoung-Kuk Na, Jong-Bok Park, Hoo-Gn Jeoung, Eui-Hyug Hoang, Thi Thi Htoon, Htay Htay Tin
A survey was performed to investigate the infection status of zoonotic trematode (ZT) metacercariae in fish from a local market in Yangon City, Myanmar. A total of 264 fish (12 species) were collected through 4 times from December 2013 to June 2015. All collected fish were transferred to our laboratory on ice and examined by the artificial digestion method. More than 7 species of ZT metacercariae, i.e., Haplorchis taichui, H. pumilio, H. yokogawai, Centrocestus spp., Stellantchasmus falcatus, Pygidiopsis cambodiensis, and Procerovum sp...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320817/development-of-monoclonal-antibodies-for-diagnosis-of-plasmodium-vivax
#9
Nguyen Thi Phuong Linh, Hyun Park, Jinyoung Lee, Dong-Xu Liu, Ga-Eun Seo, Hae-Jin Sohn, Jin-Hee Han, Eun-Taek Han, Ho-Joon Shin, Seon-Ju Yeo
Plasmodium lactate dehydrogenase (pLDH) is a strong target antigen for the determination of infection with Plasmodium species specifically. However, a more effective antibody is needed because of the low sensitivity of the current antibody in many immunological diagnostic assays. In this study, recombinant Plasmodium vivax LDH (PvLDH) was experimentally constructed and expressed as a native antigen to develop an effective P. vivax-specific monoclonal antibody (mAb). Two mAbs (2CF5 and 1G10) were tested using ELISA and immunofluorescence assays (IFA), as both demonstrated reactivity against pLDH antigen...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320816/il-12-and-il-23-production-in-toxoplasma-gondii-or-lps-treated-jurkat-t-cells-via-pi3k-and-mapk-signaling-pathways
#10
Hassan Ahmed Hassan Ahmed Ismail, Byung-Hun Kang, Jae-Su Kim, Jae-Hyung Lee, In-Wook Choi, Guang-Ho Cha, Jae-Min Yuk, Young-Ha Lee
IL-12 and IL-23 are closely related in structure, and have been shown to play crucial roles in regulation of immune responses. However, little is known about the regulation of these cytokines in T cells. Here, we investigated the roles of PI3K and MAPK pathways in IL-12 and IL-23 production in human Jurkat T cells in response to Toxoplasma gondii and LPS. IL-12 and IL-23 production was significantly increased in T cells after stimulation with T. gondii or LPS. T. gondii and LPS increased the phosphorylation of AKT, ERK1/2, p38 MAPK, and JNK1/2 in T cells from 10 min post-stimulation, and peaked at 30-60 min...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320815/comparison-of-placenta-pcr-and-maternal-serology-of-aborted-women-for-detection-of-toxoplasma-gondii-in-ardabil-iran
#11
Somaie Matin, Gholamreza Shahbazi, Shervin Tabrizian Namin, Rouhallah Moradpour, Farideh Feizi, Hadi Piri-Dogahe
Primary maternal infection with toxoplasmosis during pregnancy is frequently associated with transplacental transmission of the parasite to the fetus. This study was conducted to test the utility of PCR assay to detect recent infections with Toxoplasma in aborted women at various gestational ages who referred to Obstetrics and Gynecology Department of Alavi Hospital in Ardabil during 2014 and 2016. Two hundred women with a history of single or repeated abortion were investigated in this study. Blood samples were tested for specific anti-Toxoplasma IgM and IgG antibodies by ELISA...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320814/genotypic-identification-of-cystoisospora-in-immunocompromised-patients-using-tm-variation-analysis
#12
Maha M A Basyoni, Hany Ahmed Fouad Elghobary
Cystoisospora is responsible for morbidity in immunocompromised patients. PCR is sensitive for diagnosing Cystoisospora; however, it needs reevaluation for differential molecular diagnosis of cystoisosporiasis. We aimed at evaluating melting curve analysis (MCA) after real-time PCR (qPCR) in diagnosis and genotyping of Cystoisospora as an alternative to conventional PCR. We included 293 diarrheic stool samples of patients attending the Department of Clinical Oncology and Nuclear Medicine of Cairo University Hospitals, Egypt...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29320813/therapeutic-effects-of-resiniferatoxin-related-with-immunological-responses-for-intestinal-inflammation-in-trichinellosis
#13
REVIEW
José Luis Muñoz-Carrillo, José Luis Muñoz-López, José Jesús Muñoz-Escobedo, Claudia Maldonado-Tapia, Oscar Gutiérrez-Coronado, Juan Francisco Contreras-Cordero, María Alejandra Moreno-García
The immune response against Trichinella spiralis at the intestinal level depends on the CD4+ T cells, which can both suppress or promote the inflammatory response through the synthesis of diverse cytokines. During the intestinal phase, the immune response is mixed (Th1/Th2) with the initial predominance of the Th1 response and the subsequent domination of Th2 response, which favor the development of intestinal pathology. In this context, the glucocorticoids (GC) are the pharmacotherapy for the intestinal inflammatory response in trichinellosis...
December 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103276/intestinal-parasite-infections-among-inhabitants-in-yanbian-prefecture-jilin-province-china
#14
Myoung-Ro Lee, Hee-Eun Shin, Byung-Suk Chung, Sang-Eun Lee, Jung-Won Ju, Liji Xu, Chen Long Nan, Mi-Yeoun Park, Shin-Hyeong Cho
To investigate the prevalence of intestinal parasite infections in Yanbian Prefecture, Jilin Province, China, epidemiological surveys were conducted on a collaboration basis between the Korean Centers for Disease Control and Prevention and the Yanbian Center for Disease Control and Prevention. A total of 8,396 (males 3,737 and females 4,659) stool samples were collected from 8 localities and examined with the formalin-ether sedimentation technique, and additionally examined with the cellotape anal swab to detect Enterobius vermicularis eggs...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103275/new-record-of-aspidogaster-ijimai-kawamura-1913-trematoda-aspidogastridae-from-cyprinus-carpio-in-korea
#15
Dongmin Lee, Hansol Park, Seongjun Choe, Yeseul Kang, Hyeong-Kyu Jeon, Keeseon S Eom
Aspidogastrid trematodes (Subclass Aspidogastrea) are a relatively small group with a characteristic adhesive disc and parasitize in a variety of cold-blooded hosts. Until now, only 2 species in the genus Cotylaspis, i.e., C. coreensis and C. sinensis, have been reported as the aspidogastrid trematode in the Republic of Korea (=Korea). In the present study, we intended to describe a species of aspidogastrids collected from the small intestine of the common carp, Cypri-nus carpio, in a faunistic point of view...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103274/status-and-risk-factors-of-strongyloides-stercoralis-infection-in-rural-communities-of-xayaburi-province-lao-pdr
#16
Phasouk Senephansiri, Porntip Laummaunwai, Sakorn Laymanivong, Thidarut Boonmar
The present study was performed to reveal the current status and risk factors of Strongyloides stercoralis infections in the villages of Kenethao district, Xayaburi Province, Lao PDR. Fecal specimens were collected and examined for S. stercoralis using Koga-agar plate culture technique. Among 516 individuals, the prevalence of S. stercoralis and hookworm infection was 44.2% and 17.1%, respectively. Co-infection was detected in 13.2% of the cases. The prevalence did not significantly differ between males and females (P=0...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103273/a-case-of-engorged-female-hard-tick-in-the-external-auditory-canal-of-an-infant
#17
Woo-Jung Sung, Yee-Hyuk Kim
An oval-shaped mass with a smooth surface was found in the ear canal of a 22-month-old male infant. Although the mass appeared to be almost entirely blocking the ear canal, it was successfully removed under a surgical microscope without general anesthesia at the outpatient department. Under an optical microscope with hematoxylin and eosin staining, the specimen was observed to have a cuticle with a serrated surface and a pore canal, as well as parts of the capitulum, salivary glands, muscles, midgut, and the legs...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103272/first-case-of-canine-infection-with-hepatozoon-canis-apicomplexa-haemogregarinidae-in-the-republic-of-korea
#18
Seung-Joo Kwon, Yoon-Hee Kim, Hyun-Hee Oh, Ul-Soo Choi
This report describes a dog infected with Hepatozoon canis, the first canine infection in the Republic of Korea. A 2-year-old intact male Maltese dog presented with anorexia and depression. Physical examinations revealed mild dehydration and hyperthermia (39.8°C), and blood analysis showed pancytopenia. Diff-Quik staining of blood smear specimens showed the presence of ellipsoidal shaped structures (gamonts of H. canis) within a small number of neutrophils. Real-time PCR analysis using whole blood confirmed infection by H...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103271/chigger-mite-acari-trombiculidae-survey-of-rodents-in-shandong-province-northern-china
#19
Xiao-Dan Huang, Peng Cheng, Yu-Qiang Zhao, Wen-Juan Li, Jiu-Xu Zhao, Hong-Mei Liu, Jing-Xuan Kou, Mao-Qing Gong
Chigger mites are parasites of rodents and other vertebrates, invertebrates, and other arthropods, and are the only vectors of scrub typhus, in addition to other zoonoses. Therefore, investigating their distribution, diversity, and seasonal abundance is important for public health. Rodent surveillance was conducted at 6 districts in Shandong Province, northern China (114-112°E, 34-38°N), from January to December 2011. Overall, 225/286 (78.7%) rodents captured were infested with chigger mites. A total of 451 chigger mites were identified as belonging to 5 most commonly collected species and 3 genera in 1 family...
October 2017: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/29103270/analysis-of-lethality-in-echinococcal-disease
#20
Anna S Khachatryan
The information on mortality from echinococcosis is important not only for a better understanding of the severity of the disease, but also for evaluating the effectiveness of public health interventions. The aim of this research was to study the causes of mortality from echinococcosis. We have collected and analyzed the materials of 1,470 patients in 10 age - groups in the Republic of Armenia (from 2000 to 2016). To find out the causes of mortality from echinococcosis, we have analyzed the medical histories and protocols of postmortem examinations of 19 deaths from echinococcosis and 17 deaths due to other indirect causes not associated with the parasite...
October 2017: Korean Journal of Parasitology
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