• Title/Summary/Keyword: larval migration inhibition

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Larval migration inhibition activity of ivermectin, doramectin and ethanol against Anisakis simplex in vitro (시험관내에서 이버멕틴, 도라멕틴, 에타놀에 대한 아나사키스 유충의 운동성 억제효과)

  • Jeon, Jae-Hyung;Jee, Cha-Ho
    • Korean Journal of Veterinary Research
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    • v.47 no.2
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    • pp.197-202
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    • 2007
  • This experiment has been investigated in order to examine larval migration inhibition activity of ivermectin, doramectin and ethanol against Anisakis simplex (A. simplex) in vitro. A. simplex larvae were obtained from the mackerel acquired from the fish market of Cheongju. They were divided into many groups and placed in culture dishes (40 larvae each) containing RPMI-1640, in the absence or presence of different concentrations of ivermectin, doramectin and ethanol. Ivermectin had a complete inhibition of larval migration at 72 h in all groups ($10-300{\mu}g/ml$). Ethanol reduced the migration of the larvae, its maximum activity being an high doses (7.5%, 10% ethanol) when it was 100% efficacy at 4 h. Doramectin had no efficacy in vitro. Being needed that further studies with ivermectin and doramectin, it is recommended that in vivo test with laboratory animals should be carried.

Effect of ivermectin and doramectin for larval(Anisakis spp) migratory inhibition in rats (랫드에서 아니사키스 유충에 대한 이버멕틴과 도라멕틴의 운동성 억제효과)

  • Lee, Seung-Hwan;Jee, Cha-Ho
    • Korean Journal of Veterinary Service
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    • v.31 no.1
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    • pp.93-100
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    • 2008
  • This experiment has been investigated in order to examine the effect of ivermectin and doramectin for laval migratory inhibition in rats. Anisakis spp larvae were obtained from the mackerels in fish market in Cheongju. A total of 225 rats were classified with 3 groups with the same number ($3{\times}75$ rats); group I was control divided into 3 subgroups including 25 rats in each one, others (test groups) were treated subcutaneously with ivermectin and doramectin by 3 kinds of concentrations ($200{\mu}g/kg$, 400, 800), respectively. At 15 minutes after treating, 10 larvae were taken orally into each rat of 6 subgroups in test, and 5 rats were necropsied at 0.5, 1, 2, 4 and 8 hours after oral administration. The recovered larvae were used in larval migration inhibition (LMI). Ivermectin is significantly more effective than doramectin. In rats, the inhibitory effect of ivermectin and doramectin is slightly less than in vitro.

Inhibitory effects of herbal extracts (Meliae ezadarach, Dryopteris crassirhizoma, Quisqualis indica var villosa) on larval migration of Anisakis spp. in vitro (시험관내에서 아니사키스 유충의 운동성에 대한 고련피, 관중, 사군자의 억제효과)

  • Kwon, Hee-Nyung;Jee, Cha-Ho
    • Korean Journal of Veterinary Research
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    • v.48 no.4
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    • pp.473-480
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    • 2008
  • A high incidence of Anisakiasis has been reported in many countries where people eat frequently raw or undercooked seafood. Anisakis spp. larvae were obtained from the mackerel acquired from a fish market of Cheongju city. They were divided into several groups and placed in culture dishes containing RPMI-1640 (culture media), in the presence or absence of different concentrations of herbal extracts (Meliae ezadarach, Dryopteris crassirhizoma, Quisqualis indica var villosa). The objective of the present study was to investigate the activity of larval migration inhibition in vitro. Meliae ezadarach at the concentrations of 7.5, 15, and 30 mg/ml effectively inhibited the larvae migration in time-dependent manner during experimental period of 0-24 h. Treatment of Meliae ezadarach at the three concentrations completely inhibited the larvae migration in vitro. Dryopteris crassirhizoma at the concentrations of 5, 10, and 20 mg/ml also effectively inhibited the larvae migration in a time-dependent manner. The treatment of Dryopteris crassirhizoma for 12 h completely inhibited the larvae migration. The inhibitory effect of Dryopteris crassirhizoma was stronger than that of Meliae ezadarach. Although Quisqualis indica var villosa also showed the inhibitory effect on larvae migration, its inhibitory efficacy was the weakest among tested herbal extracts. These results indicated that some herbal extracts may be useful in controlling human anisakiasis.