• Parasites, Hosts and Diseases
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• 제36권2호
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• pp.109-120
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• 1998

서울주걱흡충 (Weodiplostomum seoulense)에 감염된 BALB/c 및 C3H 마우스의 소장에서 비만 세포 및 배세포 반응 양상을 관찰하고, 이들 반응이 숙주 방어기전 및 충체 배출에 영향을 줄 수 있는지 알아보았다. 마우스 1마리당 피낭유충 200개씩을 감염시킨 후 28일까지 충체회수율을 관 찰한 바 BALB/c 마우스가 C3H 마우스에 비해 월등히 높은 충체회수율을 보였다 그러나, 마우스 주에 관계없이 충체의 주 기생부위인 십이지장에서 감염 7일에 비만세포수가 최고에 달하였고 곧 바로 감소하였다. 이러한 비만세포수의 반응 양상은 공장 및 회장에서도 비슷하게 나타났으며, 반응의 강도는 십이지장이나 공장이 회장에 비해 높았다. 또한, 비만세포수의 최고치는 BALB/c 마우스에서 C3H 마우스보다 오히려 높게 나타났다. 배세포 증식은 BALB/c 마우스의 경우 감염 14 일을 제외하고는 십이지장에서 뚜렷이 관찰되었고, C3H 마우스의 경우에는 감염 7일에 공장 및 회장에서 관찰되었다. 배세포의 점액 (mucin) 활성은 BAkBlc 및 C3H 마우스 모두에서 인정되었으나, 그 강도는 BALBlc 마우스에서 더욱 뚜렷하였다. 이상의 결과를 종합할 때, 이들 마우스의 장점막 비만세포 및 배세포 반응은 서울주걱흡충 감염에 대한 국소적인 면역반응으로 나타나지만 숙주 방어나 충체 배출에의 관여도는 낮을 것으로 추측되었다.

• Parasites, Hosts and Diseases
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• 제42권1호
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• pp.41-44
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• 2004

The pond smelt Hypomesus olidus and minnow Zacco platypus were collected from the Soyang and Daechung Lakes in January 2003, and their metacercarial infections was examined by the muscle compression and artificial digestion techniques. In the Soyang Lake, 161 metacercariae of Clonorchis sinensis (0.35 per fish) were harvested from 459 pond smelts examined. Also, 13 metacercariae of C. sinensis (0.43 per fish), 1 of Metagonimus sp., 4 of Echinostoma sp., 148 of Centrocestus armatus and 44 unidentified species were collected from 30 minnows. In the Daechung Lake, 369 metacercariae of C. sinensis (3.69 per fish) and 51 unidentified species were recovered from 100 pond smelts. The metacercariae of C. sinensis were fed to experimental rats, in which the adult flukes were identified. The pond smelts and minnows collected from the Soyang and Daechung Lakes were verified to be the second intermediate hosts and the sources of human C. sinensis infection.

• Parasites, Hosts and Diseases
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• 제56권3호
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• pp.259-265
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• 2018

To investigate the infection status of zoonotic trematode metacercariae in yellowfin goby, Acanthogobius flavimanus, from coastal areas of the Republic of Korea (Korea), we examined total 344 gobies from 21 localities with an artificial digestion method from 2013 to 2017. The metacercariae of Stictodora lari were most frequently detected in 45.3% goby from 7 localities, i.e., Taean-gun (Chungcheongnam-do), Gochang-gun (Jeollabuk-do), Muan-gun, Shinan-gun, Haenam-gun (Jeollanam-do), Hadong-gun and Goseong-gun (Gyeongsangnam-do). Their infection rates were 90.0%, 66.7%, 46.7%, 8.0%, 3.3%, 26.7%, and 86.7% and intensities were 1,090, 6.2, 1.6 1.0, 2.0, 2.0, and 7.2 metacercariae per fish infected respectively. Heterophyopsis continua metacercariae were found in 38.2% goby from 6 localities, i.e., Gochang-gun, Muan-gun, Shinan-gun, Gangjin-gun, Boseong-gun (Jeollanam-do) and Goseong-gun, and their intensities were relatively low, 1-21 metacercariae. Stictodora fuscata metacercariae were detected in 61.3% goby from 4 localities, i.e., Taean-gun, Gochang-gun, Hadong-gun and Goseong-gun. Their infection rates were 90.0%, 53.3%, 5.9%, and 73.3% and intensities were 1,081, 3.1, 3.0, and 10.2 metacercariae per fish infected respectively. Heterophyes nocens metacercariae were found in 55.0% goby from Muan-gun and Shinan-gun. Total 3 metacercariae of Isthmiophora hortensis were detected in 2 (8.0%) gobies from Shinan-gun. Total 15 metacercariae of Centrocestus armatus were detected in 5 gobies (33.3%) from Gyeongpo-ho (ho means lake) in Gangneung-si, Gangwon-do. The present study suggests that yellowfin goby, A. flavimanus, acts as the infection sources of zoonotic intestinal flukes in western and southern coastal areas than in eastern coastal areas of Korea.