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Reinvestigation of Causative Agents of Gnathostomiasis in Mainland China.

Research Project

Project/Area Number 01044111
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionJoint Research
Research InstitutionKyushu University

Principal Investigator

ISHII Yoichi  Professor, Faculty of Medicine, Kyushu University, 医学部, 教授 (50037339)

Co-Investigator(Kenkyū-buntansha) LIU Jia-ying  Lecturer, Faculty of Science, East China Normal University, 理学部(中国), 講師
MIN Weiーping  Lecturer, Jiangxi Medical College, 講師
XIA Baoーfen  Associate Professor, Jiangxi Medical College, 付教授
HUANG Wen-chang  Professor, Jiangxi Medical College, 教授
MENG Xian-jin  Honorary President, Jiangxi Medical College, 名誉院長
ISHIBASHI Junko  Assistant, Faculty of Medicine, Kyushu University, 医学部, 助手 (80117275)
HIGO Hiroo  Assistant, Faculty of Medicine, Kyushu University, 医学部, 助手 (80117225)
KOGA Masataka  Lecturer, Faculty of Medicine, Kyushu University, 医学部, 講師 (80136449)
FUJINO Takahiro  Associate Professor, Faculty of Medicine, Kyushu University, 医学部, 助教授 (50037454)
Project Period (FY) 1989 – 1990
Project Status Completed (Fiscal Year 1990)
Budget Amount *help
¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 1990: ¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1989: ¥2,800,000 (Direct Cost: ¥2,800,000)
KeywordsSurveys / Gneathostoma / Fresh water fishes / cats / Mainland China / The valley of the Yang-tze / Experimental infection / Infection behavior
Research Abstract

We investigated the prevalence of larval gnathostomes in freshwater fishes in south east area of the Yangtze Valley, the People's Republic of China, from October to November in 1989 and 1990.
In 1989, investigations were carried out at 5 districts, Shanghai, Chenchiang, Nanching, Chiuchiang and Nanchang. Shanhai district involved Kunshan, Tienshanhu, Chingpu and Nanhui. Fishes collected in these districts were Channa argus (110), Siniperca chuatsi (24) and Silurus asotus (3). Total numbers of fishes examined were 137. Muscles of the fishes were dissected into small pieces and sliced. These slices were placed between glass plates and examined under a dissecting microscope. Viscera from 4 or 5 fish were mixed, homogenized and digested in respective group in artificial gastric juice at 37^゚C overnight. In muscle examination, 4 encysted larvae were recovered from 4 C. argus. Thirty-four larvae in total were obtained by digesting the viscera. These 38 were divided into 3 groups by their body … More length, 0.58-0.86 mm (group A), 1.12-2.61 mm (group B) and 4.86 mm and 4.86 mm (group C). Group A contained 5 small larvae which were the early third-stage. The majority (32 larvae) belonged to group B, 20 of which were infected to two rats. Group C had one larva which was the advanced third-stage. Light and scanning electron microscopy revealed that group A and B had characteristics of G. hispidum and group C that of G. spinigerum.
In 1990, we investigated fishes in the two lakes, Hongtze-Hu and Tai-Hu. Fishes examined were Channa argus (22), Cyprinus carpio (8), Carassius auratus (83), Monopterus albus (103), Erythroculter dabryi (27), Hypophthalmichthys molitrix (4), Tilapia nilotica (10), Abbotina rivilaris (90), Acanthorhodeus chankaensis (34), Pseudorasbora parva (157), Misgurnus anguillicaudatus (14), Parabramis pekinensis (1). Total numbers of fishes were 553. Totally 17 larvae were obtained from viscera of 2 fishes, C. argus and M. albus. One larva was obtained from muscle of one C. argus. These larvae belonged to group A and B and were identified as G. hispidum.
Fecal examination and autopy were made in 43 cats for investigating the prevalence of adult G. spinigerum in Hongtze district. However no eggs and adult worms occurred in them. Less

Report

(1 results)
  • 1990 Final Research Report Summary
  • Research Products

    (10 results)

All Other

All Publications (10 results)

  • [Publications] 石井 祥一: "中華人身共和国東南部産淡水魚における顎口虫幼虫寄生状況" 寄生虫学雑誌. 39. 133- (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 石井 洋一: "中国大陸における顎口虫症の病原虫の再検討" 寄生虫学雑誌. 40. 126- (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Koga,M.: "Surface morphology of gnathostome larvae obtained from fresh water fishes in China" Japanese Journal Parasitology.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 古賀 正崇: "中国産魚類由来の顎口虫幼虫のラットへの実験感染とその幼虫の形態について" 寄生虫学雑誌.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] 石井 洋一: "中国長江流域魚類の顎口虫調査研究成果報告書(予定)" 秀巧社印刷株式会社,

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoichi Ishii: "A survey of Gnathostoma larvae in fresh water fishes in south-east area, the People's Republic of China" Japanese Journal of Parasitology. 39. 133 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoichi Ishii: "Reinvestigation of causative agents of gnathostomiasis in mainland China" Japanese Journal of Parasitology. 40. 126 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Masataka Koga: "Surface morphology of gnathostome larvae obtained from fresh water fishes in China" Japanese Journal of Parasitology.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Masataka Koga: "Morphological characteristics of gnathostome larvae from rats infected with the larvae from fresh water fishes in China" Japanese Journal of Parasitology.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary
  • [Publications] Yoichi Ishii: Report of gnathostome survey in mainland China in 1989 and 1990 by a Monbusho's grant-in-aid for international scientific joint research,

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1990 Final Research Report Summary

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Published: 1989-04-01   Modified: 2016-04-21  

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