Korean Journal of Parasitology最新文献_第8页

Human Taeniasis and Cysticercosis and Related Factors in Phu Tho Province, Northern Vietnam. 越南北部富寿省人类带绦虫病和囊虫病及其相关因素。

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.369

Vu Thi Lam Binh, Do Trung Dung, Hoang Quang Vinh, Van Hul Anke, Praet Nicolas, Dorny Pierre, Dermauw Veronique

引用次数: 1

Electrophysiological Properties of Ion Channels in Ascaris suum Tissue Incorporated into Planar Lipid Bilayers. 平面脂质双层中蛔虫组织离子通道的电生理特性。

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.329

Kwon Moo Park, Sun-Don Kim, Jin Bong Park, Sung-Jong Hong, Pan Dong Ryu

{"title":"Electrophysiological Properties of Ion Channels in Ascaris suum Tissue Incorporated into Planar Lipid Bilayers.","authors":"Kwon Moo Park, Sun-Don Kim, Jin Bong Park, Sung-Jong Hong, Pan Dong Ryu","doi":"10.3347/kjp.2021.59.4.329","DOIUrl":"https://doi.org/10.3347/kjp.2021.59.4.329","url":null,"abstract":"Ion channels are important targets of anthelmintic agents. In this study, we identified 3 types of ion channels in Ascaris suum tissue incorporated into planar lipid bilayers using an electrophysiological technique. The most frequent channel was a large-conductance cation channel (209 pS), which accounted for 64.5% of channels incorporated (n=60). Its open-state probability (Po) was ~0.3 in the voltage range of -60~+60 mV. A substate was observed at 55% of the main-state. The permeability ratio of Cl- to K+ (PCl/PK) was ~0.5 and PNa/PK was 0.81 in both states. Another type of cation channel was recorded in 7.5% of channels incorporated (n=7) and discriminated from the large-conductance cation channel by its smaller conductance (55.3 pS). Its Po was low at all voltages tested (~0.1). The third type was an anion channel recorded in 27.9% of channels incorporated (n=26). Its conductance was 39.0 pS and PCl/PK was 8.6±0.8. Po was ~1.0 at all tested potentials. In summary, we identified 2 types of cation and 1 type of anion channels in Ascaris suum. Gating of these channels did not much vary with voltage and their ionic selectivity is rather low. Their molecular nature, functions, and potentials as anthelmintic drug targets remain to be studied further.","PeriodicalId":49938,"journal":{"name":"Korean Journal of Parasitology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/f4/99/kjp-59-4-329.PMC8413856.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39376085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COVID-19 and Plasmodium ovale Malaria: A Rare Case of Co-Infection. COVID-19和卵形疟原虫疟疾:罕见的合并感染病例。

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.399

Bilge Caglar, Ridvan Karaali, Ilker Inanc Balkan, Bilgul Mete, Gokhan Aygun

引用次数: 7

Anticoccidial Activity of Berberine against Eimeria-Infected Chickens. 小檗碱对艾美耳虫感染鸡的抗球虫活性研究。

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.403

Binh Thanh Nguyen, Rochelle Alipio Flores, Paula Leona Taymen Cammayo, Suk Kim, Woo Hyun Kim, Wongi Min

{"title":"Anticoccidial Activity of Berberine against Eimeria-Infected Chickens.","authors":"Binh Thanh Nguyen, Rochelle Alipio Flores, Paula Leona Taymen Cammayo, Suk Kim, Woo Hyun Kim, Wongi Min","doi":"10.3347/kjp.2021.59.4.403","DOIUrl":"https://doi.org/10.3347/kjp.2021.59.4.403","url":null,"abstract":"Avian coccidiosis has a major economic impact on the poultry industry, it is caused by 7 species of Eimeria, and has been primarily controlled using chemotherapeutic agents. Due to the emergence of drug-resistant strains, alternative control strategies are needed. We assessed anticoccidial effects of berberine-based diets in broiler chickens following oral infection with 5 Eimeria species (E. acervulina, E. maxima, E. tenella, E. mitis, and E. praecox). When 0.2% berberine, a concentration that does not affect weight gain, was added to the diet, the 4 groups infected with E. acervulina, E. tenella, E. mitis, or E. praecox showed significant reductions in fecal oocyst shedding (P<0.05) compared to their respective infected and untreated controls. In chickens treated 0.5% berberine instead of 0.2% and infected with E. maxima, fecal oocyst production was significantly reduced, but body weight deceased, indicating that berberine treatment was not useful for E. maxima infection. Taken together, these results illustrate the applicability of berberine for prophylactic use to control most Eimeria infections except E. maxima. Further studies on the mechanisms underlying the differences in anticoccidial susceptibility to berberine, particularly E. maxima, are remained.","PeriodicalId":49938,"journal":{"name":"Korean Journal of Parasitology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/8c/69/kjp-59-4-403.PMC8413861.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39374463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Erratum: Seasonal Abundance of Culicoides at Yongsan US Army Garrison (USAG) and Camp Humphreys USAG, Republic of Korea, 2010-2013 and 2014-2017. 勘误:2010-2013年和2014-2017年韩国龙山美军驻地(USAG)和汉弗莱斯美军营地库蠓的季节性丰度

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.433

引用次数: 0

Molecular Identification of Cryptosporidium viatorum Infection in a Patient Suffering from Unusual Cryptosporidiosis in West Bengal, India. 印度西孟加拉邦一名罕见隐孢子虫病患者虚隐孢子虫感染的分子鉴定。

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.409

Sanjib Kumar Sardar, Ajanta Ghosal, Yumiko Saito-Nakano, Shanta Dutta, Tomoyoshi Nozaki, Sandipan Ganguly

{"title":"Molecular Identification of Cryptosporidium viatorum Infection in a Patient Suffering from Unusual Cryptosporidiosis in West Bengal, India.","authors":"Sanjib Kumar Sardar, Ajanta Ghosal, Yumiko Saito-Nakano, Shanta Dutta, Tomoyoshi Nozaki, Sandipan Ganguly","doi":"10.3347/kjp.2021.59.4.409","DOIUrl":"https://doi.org/10.3347/kjp.2021.59.4.409","url":null,"abstract":"In this study, we have collected and screened a total of 268 stool samples from diarrheal patients admitted to an Infectious disease hospital in Kolkata for the presence of Cryptosporidium spp. The initial diagnosis was carried out by microscopy followed by genus specific polymerase chain reaction assays based on 70 kDa heat shock proteins (HSP70). DNA sequencing of the amplified locus has been employed for determination of genetic diversity of the local isolates. Out of 268 collected samples, 12 (4.48%) were positive for Cryptosporidium spp. Sequences analysis of 70 kDa heat shock proteins locus in 12 Cryptosporidium local isolates revealed that 2.24% and 1.86% of samples were showing 99% to 100% identity with C. parvum and C. hominis. Along with the other 2 major species one recently described globally distributed pathogenic species Cryptosporidium viatorum has been identified. The HSP70 locus sequence of the isolate showed 100% similarity with a previously described isolate of C. viatorum (Accession No. JX978274.1, JX978273.1, and JN846706.1) present in GenBank.","PeriodicalId":49938,"journal":{"name":"Korean Journal of Parasitology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/ba/80/kjp-59-4-409.PMC8413857.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39374464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Enterobius vermicularis Infection among Preschool Children: A 12-Year (2008-2019) Survey in Large Cities and Provinces of the Republic of Korea. 韩国主要市道学龄前儿童蛲虫感染的12年(2008-2019)调查

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.421

Hyejoo Shin, Bong-Kwang Jung, Seungwan Ryoo, Sooji Hong, Taehee Chang, Jiyeon Park, Keon Hoon Lee, Jeonggyu Lee, Jae Young Park, Hoo-Gn Jeoung, Jae Hyun Cho, Jong-Yil Chai

{"title":"Enterobius vermicularis Infection among Preschool Children: A 12-Year (2008-2019) Survey in Large Cities and Provinces of the Republic of Korea.","authors":"Hyejoo Shin, Bong-Kwang Jung, Seungwan Ryoo, Sooji Hong, Taehee Chang, Jiyeon Park, Keon Hoon Lee, Jeonggyu Lee, Jae Young Park, Hoo-Gn Jeoung, Jae Hyun Cho, Jong-Yil Chai","doi":"10.3347/kjp.2021.59.4.421","DOIUrl":"https://doi.org/10.3347/kjp.2021.59.4.421","url":null,"abstract":"A 12-year nationwide survey (2008-2019) was performed to investigate the prevalence of Enterobius vermicularis infection among preschool children in Seoul, 4 large cites (Busan, Incheon, Daegu, and Ulsan), and 9 provinces (grouped into 5 localities) in the Republic of Korea (=Korea). The survey was carried out once a year by 16 regional offices of the Korea Association of Health Promotion. The cello-tape perianal swab method (1 smear per child) was applied to detect eggs of E. vermicularis and other helminths. According to the results, the egg positive rate of E. vermicularis infection in 2008-2009 was 1.8-2.0%, but it decreased gradually to 0.6% in 2019 (P<0.05). The prevalence was significantly higher in boys (0.7-5.0%, mean 1.8%) than in girls (0.5-2.8%, mean 1.3%) (P<0.05). The 2 most southern localities, Jejudo (Province) and Jeolla-do (inclusive of Jeollabuk-do and Jeollanam-do) and a mid-western province, Gyeonggi-do, revealed higher prevalences, whereas Seoul and Gangwon-do showed lower prevalences. The results indicate that a low-grade prevalence of E. vermicularis infection (less than 4%) has been maintained for the recent 12 years among preschool children in Korea. Continuous monitoring of enterobiasis in the child age group is necessary in Korea.","PeriodicalId":49938,"journal":{"name":"Korean Journal of Parasitology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/2e/ad/kjp-59-4-421.PMC8413852.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39374466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Survey of Zoonotic Trematode Metacercariae in Fish from Irrigation Canal of Togyo-jeosuji (Reservoir) in Cheorwon-gun, Gangwon-do, Republic of Korea. 韩国江原道铁原郡Togyo-jeosuji(水库)灌溉渠鱼类人畜共患吸虫囊蚴调查

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.427

Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Hee Il Lee, Jung-Won Ju, Myoung-Ro Lee, Eun-Joo Lim, Sung Yong Son, Eunmi Ko, Jaeseok Choi

{"title":"Survey of Zoonotic Trematode Metacercariae in Fish from Irrigation Canal of Togyo-jeosuji (Reservoir) in Cheorwon-gun, Gangwon-do, Republic of Korea.","authors":"Woon-Mok Sohn, Byoung-Kuk Na, Shin-Hyeong Cho, Hee Il Lee, Jung-Won Ju, Myoung-Ro Lee, Eun-Joo Lim, Sung Yong Son, Eunmi Ko, Jaeseok Choi","doi":"10.3347/kjp.2021.59.4.427","DOIUrl":"https://doi.org/10.3347/kjp.2021.59.4.427","url":null,"abstract":"The infection status of zoonotic trematode metacercariae (ZTM) was investigated in total 568 freshwater fishes (19 species) from the irrigation canal of Togyo-jeosuji (Reservoir) in Cheorwon-gun, Gangwon-do, the Republic of Korea for 3 years (2018-2020). All fishes were examined using the artificial digestion method. The metacercariae of Clonorchis sinensis (CsMc) were detected in 180 (43.8%) out of 411 fish of positive species, and their infection intensity was 38 per fish infected (PFI). Especially, in 2 fish species, i.e., Pseudorasbora parva and Puntungia herzi, the prevalence was 82.1% and 31.3%, and the infection intensity with CsMc was 88 and 290 PFI, respectively. Metagonimus spp. metacercariae (MsMc) were found in 403 (74.1%) out of 544 fish of positive species, and their infection intensity was 62 PFI. In the pale chub, Zacco platypus, the prevalence of MsMc was 98.6%, and their infection intensity was 144 PFI. Centrocestus armatus metacercariae were detected in 171 (38.9%) out of 440 fish of positive species, and their infection intensity was 1,844 PFI. Echinostoma spp. metacercariae were found in 94 (19.6%) out of 479 fish of positive species, and their infection intensity was 3 PFI. Metorchis orientalis metacercariae were detected in 43 (29.3%) out of 147 fish of positive species, and their infection intensity was 4 PFI. By the present study, it has been confirmed that some species of ZTM, including CsMc and MsMc, are prevalent in fishes from the irrigation canal of Togyo-jeosuji in Cheorwon-gun, Gangwon-do, Korea.","PeriodicalId":49938,"journal":{"name":"Korean Journal of Parasitology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/e2/d6/kjp-59-4-427.PMC8413859.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39374468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Morphology and Mitochondrial Genome of Fischoederius sp. 1 in Thailand. 泰国费蠓1的形态和线粒体基因组。

4区医学

Korean Journal of Parasitology Pub Date : 2021-08-01 Epub Date: 2021-08-18 DOI: 10.3347/kjp.2021.59.4.355

Pichanee Watthanasiri, Amornrat Geadkaew-Krenc, Rudi Grams

引用次数: 2

Clusters of Toxoplasmosis in Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea. 江华郡、铁原郡和高城郡的弓形虫病聚集性。

4区医学

Korean Journal of Parasitology Pub Date : 2021-06-01 Epub Date: 2021-06-21 DOI: 10.3347/kjp.2021.59.3.251

Jihye Yu, Woojin Kim, Yoon Kyung Chang, Tong-Soo Kim, Sung-Jong Hong, Hye-Jin Ahn, Ho-Woo Nam, Dongjae Kim

{"title":"Clusters of Toxoplasmosis in Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea.","authors":"Jihye Yu, Woojin Kim, Yoon Kyung Chang, Tong-Soo Kim, Sung-Jong Hong, Hye-Jin Ahn, Ho-Woo Nam, Dongjae Kim","doi":"10.3347/kjp.2021.59.3.251","DOIUrl":"https://doi.org/10.3347/kjp.2021.59.3.251","url":null,"abstract":"We find out the clusters with high toxoplasmosis risk to discuss the geographical pattern in Gyodong-myeon and Samsan-myeon of Ganghwa-gun, Cheorwon-gun, and Goseong-gun, Korea. Seroepidemiological data of toxoplasmosis surveyed using rapid diagnostic tests for the residents in the areas in 2019 were analyzed to detect clusters of the infection. The cluster was investigated using the SaTScan program which is based on Kulldorff's scan statistic. The clusters were found with P-values in each region analyzed in the program, and the risk and patient incidence of specific areas can be examined by the values such as relative risk and log likelihood ratio. Jiseok-ri and Insa-ri were found to be a cluster in Gyodong-myeon and Seokmo-ri was the cluster in Samsan-myeon. Yangji-ri and Igil-ri were found to be a cluster in Cheorwon-gun and Madal-ri and Baebong-ri were the cluster in Goseong-gun. This findings can be used to monitor and prevent toxoplasmosis infections occurring in vulnerable areas.","PeriodicalId":49938,"journal":{"name":"Korean Journal of Parasitology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/08/08/kjp-59-3-251.PMC8255494.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39146678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1