• 제목/요약/키워드: acanthocephala

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Extraintestinal Migration of Centrorhynchus sp. (Acanthocephala: Centrorhynchidae) in Experimentally Infected Rats

  • Choi, Chang-Jin;Lee, Hye-Jung;Go, Jai-Hyang;Park, Yun-Kyu;Chai, Jong-Yil;Seo, Min
    • Parasites, Hosts and Diseases
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    • 제48권2호
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    • pp.139-143
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    • 2010
  • Reptiles were known to serve as paratenic hosts for Centrorhynchus (Acanthocephala: Centrorhynchidae) in Korea, but the infection course in experimental animals was not elucidated yet. In this study, the tiger keelback snakes (Rhabdophis tigrinus) were collected and digested with artificial pepsin solution, and the larvae of Centrorhynchus were recovered from them. Then, the collected larvae were orally infected to rats for developmental observations. In rats, all the larvae were observed outside the intestine on day 3 post-infection (PI), including the mesentery and abdominal muscles. As for the development in rats, the ovary of Centrorhynchus sp. was observed at day 15 PI, and the cement glands were 3 in number. Based on the morphological characteristics, including the arrangement of proboscis hooks, these larvae proved to be a species of Centrorhynchus, and more studies were needed for species identification.

A case of Moniliformis moniliformis (Acanthocephala) infection in Iran

  • Berenji, Fariba;Fata, Abdolmajid;Hosseininejad, Zahra
    • Parasites, Hosts and Diseases
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    • 제45권2호
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    • pp.145-148
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    • 2007
  • Only a few cases of Acanthocephala infections have been reported in humans, and Moniliformis moniliformis is the most common species around the world. We report here a case of infection with M. moniliformis, which passed in the stool of a 2-year-old girl in Iran. The patient had abdominal pain, diarrhea, vomiting, and facial edema. According to her mother, the patient had habit of eating dirt and once a cockroach was discovered in her mouth. In stool examination, eggs of M. moniliformis were not found. She was treated with levamisole and the clinical symptoms reduced within 2 weeks. The specimen contained 2 pieces of a female worm with a total length of 148 mm lacking the posterior end. The spiral musculature of the proboscis receptacle and the shape of the trunk allowed its generic determination. Previously 2 cases of M. moniliformis infection were reported in Iran. This is the 3rd case of M. moniliformis infection in Iran.

Characterization of the Intestinal Corynosoma strumosum (Phylum: Acanthocephala) from the Harbor Seal, Phoca largha, from the East Sea, Korea

  • Sangjin Ahn;Hyeon-Cheol Kim;Bae-keun Park
    • 한국임상수의학회지
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    • 제40권4호
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    • pp.314-320
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    • 2023
  • An acanthocephalan parasite, Corynosoma strumosum, was found in the intestine of harbor seal, Phoca largha, living in the East Sea, Korea. The probosci's hook and trunk spine patterns typical of the collected worms indicated it to be C. strumosum. The body lengths measured are 4.2-5.8 (4.9) mm in males and 5.3-6.8 (5.7) mm in females. The proboscis is bent ventrally, armed with 18 longitudinal rows of 9-13 hooks in males and 20 longitudinal rows of 11-13 hooks in females. The proboscis receptacle is double-walled with the robust trapezoidal neck being unarmed. The hind-trunk is pipe-shaped with posterior parallel sides. The characteristic hind trunk spines cover the anterior third of the ventral surface. The lemnisci are equal and slightly shorter than the double-walled proboscis receptacle, which is longer than the proboscis. This species is an acanthocephalan parasite reported for the first time in Korea.

Infection status with helminthes in feral cats pur-chased from a market in Busan, Republic of Korea

  • SOHN Woon-Mok;CHAI Jong-Yil
    • Parasites, Hosts and Diseases
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    • 제43권3호
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    • pp.93-100
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    • 2005
  • The present study was performed to investigate the infection status with helminth in a group of feral cats in Korea. More than 29 helminth species including adults or eggs were detected in visceral and fecal samples of the examined cats. Among these were a host of nematodes, including toxocarids, Ancylostoma sp. and the larva of Anisakis simplex; trematodes, including Clonorchis sinensis, Paragonimus westermani, Eurytrema pancreaticum, Pharyngostomum cordatum, Metagonimus spp., Heterophyes nocens, Pygidiopsis summa, Heterophyopsis continua, Stictodora fuscata, Stictodora lari, Acanthotrema felis, Stellantchasmus falcatus, Centrocestus armatus, Procerovum varium, Cryptocotyle sp., Echinostoma revolutum, Echinostoma hortense, Echinochasmus japonicus, Stephanoprora sp., Plagiorchis muris, Neodiplostomum sp. and diplostomulum. We also detected a variety of cestodes, including Spirometra erinacei, Taenia taeniaeformis and unidentified species of tapeworm. We also found examples of the acanthocephalan, Bolbosoma sp. In our assessment of the stools, we detected at least 12 species of helminth eggs. These findings confirmed that feral cats in Korea are infected with a variety of helminth parasite species. Furthermore, among the helminths detected, E. pancreaticum, S. fuscata, S. lari, A. felis, S. falcatus, C. armatus, P. varium, Cryptocotyle sp., E. revolutum, E. japonicus, Stephanoprora sp., P. muris, Neodiplostomum sp. and Bolbosoma sp. represent helminth fauna which have not been reported previously in feral cats in the Republic of Korea.

Morphological and molecular finding of Longicollum pagrosomi (Acanthocephala: Pomphorhynchidae) in cultured red sea bream from Korea

  • Ha, Na-Ri;Hong, Eui-Ju;Ryu, Si-Yun;Sim, Cheolho;Chae, Joon-Seok;Kim, Hyeon-Cheol;Park, Jinho;Choi, Kyoung-Seong;Yu, Do-Hyeon;Park, Bae-Keun
    • 한국동물위생학회지
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    • 제40권3호
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    • pp.169-175
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    • 2017
  • Acanthocephalan worms were harvested from the posterior intestines of the cultured marine fishes from January to July 2016 in a fish market located in Daejeon metropolitan city, Republic of Korea. Totally 450 cultured fishes (rock fish 100, olive flounder 250, red sea bream 100) were surveyed. Of the 100 red sea bream fish, 37 fishes (37%) were diagnosed as positive for Longicollum pagrosomi by light, electron microscopic and molecular examination. The number of worm was 25~78 (mean $51{\pm}13$). However, we can't found any worm from the cultured rock fish and olive flounder. After sequencing, none of Pomphorhynchidae family are not identical based on 18S rRNA gene, and this data were identified with the first report for 18S rRNA gene sequence of L. pagrosomi. Furthermore, we confirmed that L. pagrosomi of the cultured red sea bream in Republic of Korea is very common parasite.

멸종위기종 수리부엉이의 형태학적 및 혈액학적 분석 (Morphological and hematological analysis of and angered Eurasian eagle owl (Bubo bubo kiautschensis))

  • 정배동;박인철;김정남;김현철;정기수;김종택
    • 한국동물위생학회지
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    • 제32권4호
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    • pp.391-397
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    • 2009
  • Eurasian eagle owl (Bubo bubo kiautschensis) is a natural monument (No. 324) and is also classified as an endangered wildlife grade II the Ministry of Environment of Korea. Eurasian eagle owl is threatened by the human being. But the efficient rescue and treatment for Eurasian eagle owl are still problematic, due to lack of basic data. In this study, to obtain basic resources for establishing more efficient rescue system, we held a physical examination and measured size physical part. In addition, we analyzed blood sample and feces samples and autopsy. We conduct the physical examination with measuring tapes and scales for 16 live features and 11 dead features. After inhalation anesthesia take the blood samples from wing vein. Blood samples are analyzed in hematologic and chemistric methods. We collected the feces through individual floor of cages from 12 live features and conducted the feces analysis. Autopsy was conducted for 11 dead samples. In physical examination, the mean body weight and total length of live features was 2.26${\pm}$0.35kg, 61${\pm}$2.38cm, the mean body weight and total length of dead features was 1.57${\pm}$0.51kg, 59.31${\pm}$3.51cm. Mean PCV was 46.57${\pm}$4.97%, while mean TPP was 3.49${\pm}$0.57g/dL. In feces sample analysis, 9 of 12 owls(75%) were infested by gastrointestinal helminths. The infection rates were: Trematoda (41.7%), Capilaria sp.(66.7%), acanthocephalans (25%). In autopsy, we confirmed 11 features were infested by duplicated infection of more than 2 helminths. Result of this study will be used for establishing reference range for physical features, blood analysis in Eurasian eagle owl. Therefore, to obtain basic resources for establishing more efficient rescue system, we have to make long-term conservation plans for Eurasian eagle owl.