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Comparison of Resistance to gamma-Irradiation between Cryptosporidium parvum and Cryptosporidium muris Using In Vivo Infection

Yoon S, Yu JR

In the genus Cryptosporidium, there are more than 14 species with different sizes and habitats, as well as different hosts. Among these, C. parvum and C. hominis are known to...
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Infection status of pigs with Cryptosporidium parvum

Yu JR, Seo M

To investigate the infection status of pigs with Cryptosporidium parvum, 589 fecal samples were collected from pigs raised at farm in Chungcheongbuk-do and Chungcheongnam-do. Of the 589 pig fecal samples,...
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Localization of cytoskeletal proteins in Cryptosporidium parvum using double immunogold labeling

Yu JR, Lee SH

Actin and some actin binding proteins such as tropomyosin, -actinin and troponin T were localized by simultaneous double immunogold labeling in several developmental stages of Cryptosporidium parvum. All of the...
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Quantitative Evaluation of Infectivity Change of Cryptosporidium parvum after Gamma Irradiation

Lee SU, Joung M, Nam T, Park WY, Yu JR

Cryptosporidium parvum is a well-known waterborne and opportunistic intracellular protozoan parasite that causes diarrheal illness. In this study, we quantitatively investigated reduction of the infectivity of C. parvum after gamma...
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Comparative Sensitivity of PCR Primer Sets for Detection of Cryptosporidium parvum

Yu JR, Lee SU, Park WY

Improved methods for detection of Cryptosporidium oocysts in environmental and clinical samples are urgently needed to improve detection of cryptosporidiosis. We compared the sensitivity of 7 PCR primer sets for...
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Prevalence of diarrhea caused by Cryptosporidium parvum in non-HIV patients in Jeollanam-do, Korea

Lee JK, Song HJ, Yu JR

The present study investigated the prevalence rate of Cryptosporidium parvum as a cause of diarrhea. We examined 942 stools of unidentified reasons occurring in patients in whom no immunosuppression had...
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CysQ of Cryptosporidium parvum, a Protozoa, May Have Been Acquired from Bacteria by Horizontal Gene Transfer

Lee JY, Kim S

Horizontal gene transfer (HGT) is the movement of genetic material between kingdoms and is considered to play a positive role in adaptation. Cryptosporidium parvum is a parasitic protozoan that causes...
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Resistance of Cryptosporidium parvum oocysts following commercial bleach treatment

Surl CG, Jung BD, Park BK, Kim HC

  • KMID: 1446201
  • Korean J Vet Res.
  • 2011 Jun;51(2):101-105.
We investigate the resistance of Cryptosporidium (C.) parvum oocysts to commercial bleach treatment. The viability and infectivity of C. parvum oocysts suspended in 100, 50, 25, 12.5, 6.3 or 3.2%...
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Concurrent response to challenge infection with Cryptosporidium parvum in immunosuppressed C57BL/6N mice

Surl CG, Kim HC

We investigated the response to challenge infection with Cryptosporidium parvum oocysts in immunosuppressed C57BL/6N mice. In the primary infection, fecal oocyst shedding and parasite colonization were greater in immunosuppressed mice...
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Molecular Prevalence and Genotypes of Cryptosporidium parvum and Giardia duodenalis in Patients with Acute Diarrhea in Korea, 2013–2016

Ma DW, Lee MR, Hong SH, Cho SH, Lee SE

Cryptosporidium parvum and Giardia duodenalis are the main diarrhea-causing parasitic pathogens; however, their prevalence in Korea is unknown. Here, we conducted a survey to determine the prevalence and genotype distribution...
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Ultrastructural Changes in Cryptosporidium parvum Oocysts by Gamma Irradiation

Joung M, Yun S, Joung M, Park WY, Yu JR

Cryptosporidium parvum is known as one of the most highly resistant parasites to gamma irradiation. To morphologically have an insight on the radioresistance of this parasite, ultrastructural changes in C....
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Charting the proteome of Cryptosporidium parvum sporozoites using sequence similarity-based BLAST searching

Siddiki AM, Wastling J

Cryptosporidium (C.) spp. are important zoonotic parasites causing widespread diarrhoeal disease in man and animals. The recent release of the complete genome sequences for C. parvum and C. hominis has...
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Time gap between oocyst shedding and antibody responses in mice infected with Cryptosporidium parvum

Yu JR, Lee SU

We observed the time gap between oocyst shedding and antibody responses in mice (3-week-old C57BL/6J females) infected with Cryptosporidium parvum. Oocyst shedding was verified by modified acid-fast staining. The individually...
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An epidemiological survey on Cryptosporidium parvum infection of inhabitants in Chorwon-gun, Kangwon-do

Seo M, Huh S, Chai JY, Yu JR

The present study was undertaken to know the infection status of Cryptosporidium parvum among the residents of Chorwon-gun, Kangwon-do in 1993. Total 461 fecal samples were collected from the inhabitants...
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Simultaneous Molecular Detection of Cryptosporidium and Cyclospora from Raw Vegetables in Korea

Sim S, Won J, Kim JW, Kim K, Park WY, Yu JR

Cryptosporidium and Cyclospora are well-known coccidian protozoa that can cause waterborne and foodborne diarrheal illnesses. There have been a few reports regarding contamination in different vegetables with Cryptosporidium, but no...
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Detection of Cryptosporidium parvum in Environmental Soil and Vegetables

Hong S, Kim K, Yoon S, Park WY, Sim S, Yu JR

Cryptosporidium parvum is a zoonotic protozoan parasite that causes cryptosporidial enteritis. Numerous outbreaks of cryptosporidiosis have been reported worldwide. Cryptosporidium is transmitted to hosts via consumption of contaminated water and...
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In vitro infection of Cryptosporidium parvum to four different cell lines

Yu JR, Choi SD, Kim YW

To determine a suitable condition for in vitro infection model of Cryptosporidium parvum, four different cell lines, AGS, MDCK, HCT-8 and Caco-2, were used as host cell lines which were...
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Sporozoite proteome analysis of Cryptosporidium parvum by one-dimensional SDS-PAGE and liquid chromatography tandem mass spectrometry

Siddiki AM

Despite the development of new technologies, new challenges still remain for large scale proteomic profiling when dealing with complex biological mixtures. Fractionation prior to liquid chromatography tandem mass spectrometry (LC-MS/MS)...
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Cryptosporidium Infection of Human Intestine: An Electron Microscopic Observation

Kim MS, Kang YK, Yoon CJ, Joo M, Lee HK, Seo JG, Chi JG

  • KMID: 1921782
  • Korean J Pathol.
  • 1999 Feb;33(2):121-127.
Protozoa of the genus Cryptosporidium are small coccidian parasite known to infect the mucosal epithelium of a variety of animals including human, causing fatal course in immunodeficient patients as well...
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Localization of actin and myosin in Cryptosporidium parvum using immunogold staining

Yu JR, Chai JY

The location of actin and myosin of the several stages of Cryptosporidium parvum was observed. The tissue antigen of C. parvum was prepared through immunosuppression of ICR mice with Depomedrol....
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