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      Detection and Identification of Sarcocystis cruzi (Protozoa: Apicomplexa) by Molecular and Ultrastructural Studies in Naturally Infected Korean Cattle ( Bos taurus coreanae) from Daejeon, Korea

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          Abstract

          To survey the prevalence of Sarcocystis infections, 210 heart samples were collected from Korean native cattle ( Bos taurus coreanae) at an abattoir in Daejeon Metropolitan City, Republic of Korea. Sarcocysts were detected form 31 specimens (14.8%) and identified as Sarcocystis cruzi via transmission electron microscopy. The wall of S. cruzi has flattened protrusions that did not contain fibrils or microfilaments. The protrusions arose irregularly from the base, contained a fine granular substance, lacked internal microfilaments, and measured approximately 0.21–1.25 μm in length and 0.05–0.07 μm in width. Sequence analysis revealed 99.5% homology to S. cruzi. This is the first report on the prevalence of S. cruzi in native cattle from the Republic of Korea.

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          Prevalence of Sarcocystis spp. in Argentinean cattle.

          S Jurado, L Venturini, J Marín … (2011)
          Sarcocystis cruzi, S. hirsuta and S. hominis are apicomplexan parasites that affect cattle worldwide with variable prevalence. The aim of the present study was to evaluate the prevalence of Sarcocystis spp. in Argentinean cattle comparing microscopic fresh examination and molecular methods. Blood, myocardium and loin samples were collected in five slaughterhouses from a total of 380 bovines. Origin of animals was representative of the major beef cattle production area of Argentina. Samples were analyzed by fresh microscopical examination, transmission electron microscopy (TEM), IFAT and PCR-RFLP. Thin walled sarcocysts corresponding with S. cruzi were found in 99.5% of heart samples. Sarcocysts were detected in 73.1% of loin samples; 71.5% had S. cruzi cysts and 23.1% had thick walled sarcocysts (S. hirsuta or S. hominis). TEM observation revealed the presence of characteristic S. hominis and S. hirsuta cyst walls in 7 and 1 loin samples respectively. Using IFAT, 379/380 animals had titers 25 or higher, showing a full agreement with fresh examination. Amplification products were detected in 35.5% (135/380) of loin samples; however Sarcocystis species could only be determined by RFLP in 29 samples. Agreement between fresh examination and PCR was low (Kappa value=0.262). This is the first report of S. hominis and S. hirsuta in Argentina. Further studies are needed to improve the sensitivity of molecular methods for species identification, especially for differentiation of S. cruzi and S. hirsuta from the zoonotic species S. hominis. The results of the present study and others focusing on sensitivity and specificity of Sarcocystis spp. diagnostic methods should contribute to improve food safety. Copyright © 2010 Elsevier B.V. All rights reserved.
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            Neosporosis, toxoplasmosis, and sarcocystosis in ruminants.

            Christopher Lindsay, Jitender Dubey (2006)
            Neospora caninum, Sarcocystis spp, and Toxoplasma gondii are related coccidian parasites that can cause abortion and neonatal mortality in animals. In addition, T gondii and certain species of Sarcocystis are zoonotic. This article reviews information on the etiology, diagnosis, control, and prevention of these diseases.
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              Analysis of the 18S rRNA genes of Sarcocystis species suggests that the morphologically similar organisms from cattle and water buffalo should be considered the same species.

              Z. Yang (2001)
              Article 0 comments Cited 22 times – based on 0 reviews     Review now
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                Author and article information

                Journal
                Journal ID (nlm-ta): Korean J Parasitol
                Journal ID (iso-abbrev): Korean J. Parasitol
                Title: The Korean Journal of Parasitology
                Publisher: The Korean Society for Parasitology and Tropical Medicine
                ISSN (Print): 0023-4001
                ISSN (Electronic): 1738-0006
                Publication date (Print): April 2018
                Publication date (Electronic): 30 April 2018
                Volume: 56
                Issue: 2
                Pages: 121-127
                Affiliations
                [1 ]College of Veterinary Medicine, Chungnam National University, Daejeon 34134, Korea
                [2 ]Department of Biology, Baylor University, Waco, Texas 76798, USA
                [3 ]Laboratory of Veterinary Internal Medicine, BK21 PLUS Program for Creative Veterinary Science Research and College of Veterinary Medicine, Seoul National University, Seoul 08826, Korea
                [4 ]College of Veterinary Medicine, Kangwon National University, Chuncheon 24341, Korea
                [5 ]College of Veterinary Medicine, Chonbuk National University, Jeonju 54896, Korea
                [6 ]College of Animal Science, Kyungpook National University, Daegu 41566, Korea
                [7 ]College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
                [8 ]Laboratory of Veterinary Clinics, National Institute of Animal Science Rural Development Administration, Wanju 55365, Korea
                Author notes
                [* ]Corresponding author ( bkpark@ 123456cnu.ac.kr ).
                [†]

                These authors contributed equally to this work.

                Article
                Publisher ID: kjp-56-2-121
                DOI: 10.3347/kjp.2018.56.2.121
                PMC ID: 5976014
                PubMed ID: 29742866
                SO-VID: f6b5b1d8-b7f3-4b0d-beed-ec216fc6afdc
                Copyright © Copyright © 2018 by The Korean Society for Parasitology and Tropical Medicine
                License:

                This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                Date received : 15 January 2018
                Date revision received : 2 April 2018
                Date accepted : 5 April 2018
                Categories
                Subject: Original Article

                ScienceOpen disciplines: Parasitology
                Keywords: sarcocystis cruzi,bos taurus coreanae,ultrastructure,18s rrna
                Data availability:
                ScienceOpen disciplines: Parasitology
                Keywords: sarcocystis cruzi, bos taurus coreanae, ultrastructure, 18s rrna

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