ArticleParasitology research2015
Evaluation of nystatin isolated from Streptomyces griseus SDX-4 against the ciliate, Ichthyophthirius multifiliis.
Article in Parasitology research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 10 citations in OpenAlex.
- The Invisible Balance: How Prebiotics and Probiotics Can Support Fish Health and Development.Life (Basel, Switzerland) · 2026Review
- Essential oils of Varronia curassavica accessions have different activity against white spot disease in freshwater fish.Parasitology research · 2018Article
- In vitro and in vivo assessment of the effect of antiprotozoal compounds isolated from Psoralea corylifolia against Ichthyophthirius multifiliis in fish.International journal for parasitology. Drugs and drug resistance · 2015Article
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The present study was conducted to evaluate the in vitro and in vivo antiparasitic efficacy of active compounds from the bacterial extracellular products of Streptomyces griseus SDX-4 against Ichthyophthirius multifiliis. Bioassay-guided fractionation and isolation of compounds with antiparasitic activity were performed on n-butanol extract of S. griseus yielding a pure bioactive compound, nystatin (Nys), identified by comparing spectral data (EI-MS, (1)H NMR, and (13)C NMR) with literature values. Results from in vitro antiparasitic assays revealed that Nys could be 100% effective against I. multifiliis theronts and encysted tomonts at the concentration of 6.0 mg L(-1), with the median effective concentration (EC50) values of 3.1 and 2.8 mg L(-1) for theronts and encysted tomonts (4 h), respectively. Results of in vivo test demonstrated that the number of I. multifiliis trophonts on the gold fish treated with Nys was markedly lower than the control group at 10 days after exposed to theronts (p < 0.05). In the control group, 85.7% mortality was observed owing to heavy I. multifiliis infection at 10 days after the exposure. On the other hand, only 23.8% mortality owing to parasite infection was recorded in the groups treated with the Nys (4.0 and 6.0 mg L(-1)). In addition, our results showed that the survival and reproduction of I. multifiliis tomont exited from the fish were significantly reduced after treated with the 6.0 mg L(-1) Nys. The median lethal dose (LD50) of Nys for goldfish was 16.8 mg L(-1). This study firstly demonstrated that Nys has potent antiparasitic efficacy against I. multifiliis, and it can be a good candidate drug for chemotherapy and control of I. multifiliis infections.
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