The Genus Cyclospora (Apicomplexa: Eimeriidae), with a description of Cyclospora schneideri n.sp. in the snake Anilius scytale scytale (Aniliidae) from Amazonian Brazil: a review

Lainson, Ralph

doi:10.1590/s0074-02762005000200001

Cited by 32 publications

(19 citation statements)

References 32 publications

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“…To date 19 species of Cyclospora were described in different hosts, including reptiles, myriapods, vipers, insectivores, and rodents (Lainson 2005;Mansfield and Gajadhar 2004;Shields and Olson 2003a). Molecular phylogenetic analysis based on the 18S rRNA gene showed that human-associated Cyclospora is closely related to Eimeria species (Relman et al 1996), especially to mammalian Eimeria species (Pieniazek and Herwaldt 1997).…”

Section: Introductionmentioning

confidence: 99%

Molecular characterization of Cyclospora-like organism from dairy cattle

Xiao

Zhou

et al. 2007

Parasitol Res

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Cyclospora cayetanensis was identified as the cause of large outbreaks of diarrhea in many parts of the world, but its host range and reservoirs remains poorly defined. Recently, oocysts resembling the C. cayetanensis were detected in dairy cattle fecal specimens from China. The 18S rDNA from two of these Cyclospora-like oocyst specimens from dairy cattle was amplified and sequenced. Phylogenetic analysis indicated that these cattle-associated Cyclospora-like organisms are nearly identical to each other and belong to the group of primate-derived Cyclospora, which are the closest known relatives of C. cayetanensis; while these cyclosporans constitute a coherent clade within the diverse group of Eimeria species. Moreover, on the basis of our finding that ruminant- and avian-associated Eimeria species are different in MnlI sites, a new PCR-restriction fragment length polymorphism protocol with primers NesCycF and NesCycR was developed to distinguish the Cyclospora species from ruminant-associated Eimeria species.

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Section: Introductionmentioning

confidence: 99%

Molecular characterization of Cyclospora-like organism from dairy cattle

Xiao

Zhou

et al. 2007

Parasitol Res

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“…Nineteen species of Cyclospora have been described, based mainly on conventional microscopic analysis of oocsts in feces from reptiles (mostly snakes), insectivores, rodents, primates, and humans (Lainson, 2005). Cyclospora cayetanensis is the only species in the genus known to infect humans.…”

Section: Taxonomymentioning

confidence: 99%

Cyclospora cayetanensis

Chacín-Bonilla¹

2019

Water and Sanitation for the 21st Century: Health and Microbiological Aspects of Excreta and Wastewater Management (Global Wate

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“…Fifty oocysts of each concentrate using Sheather's sugar solution and stained with modified acid fast Kinyoun's stain were measured. Shape index which is the ratio of length/width was measured in micrometers and are given as means ± SD (Lainson 2005).…”

Section: Stool Examinationmentioning

confidence: 99%

“…Cyclospora cayetanensis is an obligate intracellular apicomplexan protozoan parasite that infects the mucosal epithelium of the small intestine or bile duct of humans (Lainson 2005). It is an important emerging cause of diarrhea worldwide in both immunocompromised and immunocompetent hosts leading to significant morbidity and mortality (Legua and Seas 2013).…”

Section: Introductionmentioning

confidence: 99%

Wide genetic variations at 18S ribosomal RNA locus of Cyclospora cayetanensis isolated from Egyptian patients using high resolution melting curve

et al. 2016

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A variable clinical picture of cyclosporiasis including gastrointestinal tract (GIT) symptomatic or asymptomatic beside extraintestinal consequences suggests a possibility of heterogenicity of Cyclospora cayetanensis. The present work aimed to explore the possibility of genetic variation of C. cayetanensis using high-resolution melting (HRM) curve of polymerase chain reaction (PCR) amplified 18S rRNA genes. DNAs extracted from the stool samples of 70 cyclosporiasis patients were amplified and scanned by PCR/HRM curve. The results showed that there are four different genotypic profiles of C. cayetanensis with presence of mixed ones. Although Tm of all profiles was within the same range, they were discerned by plotting of the temperature-shifted florescence difference between normalized melting curves (dF/dT). Genotypic profile I was found alone in 40 % of patients and mixed with genotypic profile II and/or III in 25.7 % of patients, followed by genotypic profile II in 14.3 % then genotypic profile III and IV (10 % each). A significant relation was found between genotypic profiles and GIT symptomatic status as profile I and profile II were mostly detected in patients with acute GIT symptoms without or with chronic illness, respectively, while profile IV cases only were GIT asymptomatic. Statistical significance relations between genotypic profiles and age, gender, residence and oocyst shape index were determined. In conclusion, PCR/HRM proved a wide variation on C. cayetanensis genes that could be reflected on its pathogenic effects and explaining the variability of the clinical manifestations presented by cyclosporiasis patients.

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The Genus Cyclospora (Apicomplexa: Eimeriidae), with a description of Cyclospora schneideri n.sp. in the snake Anilius scytale scytale (Aniliidae) from Amazonian Brazil: a review

Cited by 32 publications

References 32 publications

Molecular characterization of Cyclospora-like organism from dairy cattle

Molecular characterization of Cyclospora-like organism from dairy cattle

Cyclospora cayetanensis

Wide genetic variations at 18S ribosomal RNA locus of Cyclospora cayetanensis isolated from Egyptian patients using high resolution melting curve

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