| Recovery facilitation of malathion-intoxicated freshwater fish by exposure to hypertonic environment. | |
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MedLine Citation:
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PMID: 2790299 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The possibility of recovery in a hypertonic environment (10-40% NaCl) was investigated in the freshwater fish Oreochromis niloticus acutely intoxicated with the pesticide Malathion (40 mg/l). Survival was significantly higher in 15 g/l NaCl, with a shorter time required to recover posture and swimming, although 20% of recovered animals died on subsequent days. Exposure to a hypertonic environment plus pesticide did not protect the animals. Fish exposed to air until they became unresponsive recovered faster in freshwater than in a hypertonic environment. It is concluded that a hypertonic environment only facilitates recovery and that although osmotic mechanisms may explain the results, other possibilities remain to be investigated. |
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Authors:
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L R Lopes; S Santos; J P Dell'Aqua; C R Del-Carratore; K Hoshino |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Brazilian journal of medical and biological research = Revista brasileira de pesquisas médicas e biológicas / Sociedade Brasileira de Biofísica ... [et al.] Volume: 22 ISSN: 0100-879X ISO Abbreviation: Braz. J. Med. Biol. Res. Publication Date: 1989 |
Date Detail:
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Created Date: 1989-11-17 Completed Date: 1989-11-17 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8112917 Medline TA: Braz J Med Biol Res Country: BRAZIL |
Other Details:
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Languages: eng Pagination: 269-73 Citation Subset: IM |
Affiliation:
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Departamento de Fisiologia, Universidade Estadual Paulista, Botucatu, Brasil. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Environmental Exposure Female Fishes / physiology* Hypertonic Solutions / pharmacology* Malathion / toxicity* Male Muscle Contraction / drug effects* Osmotic Pressure |
| Chemical | |
Reg. No./Substance:
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0/Hypertonic Solutions; 121-75-5/Malathion |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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