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Interaction of methylmercury and selenium on the bioaccumulation and histopathology in medaka (Oryzias latipes)
10.1002/tox.20236.abs
Interaction of methylmercury and selenium in medaka (Oryzias latipes) on bioaccumulation of pollutants and histopathological changes in liver and gill were studied. Juvenile medaka fish were submitted to a series of waterborne methylmercury chloride (MMC), sodium selenite (Na2SeO3) and their mixture for 210 days, respectively. The methylmercury (MeHg) and selenium contents in the whole body of medaka were determined. The dose‐ and time‐dependent increase of MeHg and selenium contents in medaka were observed. Histopathological changes, such as edema, vacuoles, pyknotic nucleus, and telangiectasis, could clearly be observed in the slices from the exposed medaka's liver and gill. Concurrent exposure to MMC and Na2SeO3 showed the increased selenium accumulation. When the exposure molar ratio of MeHg:Se was about 1, the interaction between MeHg and selenium offered a limited protection against the serious intoxication of both MMC and Na2SeO3 to medaka. © 2007 Wiley Periodicals, Inc. Environ Toxicol 22: 69–77, 2007.
Interaction of methylmercury and selenium on the bioaccumulation and histopathology in medaka (Oryzias latipes)
10.1002/tox.20236.abs
Interaction of methylmercury and selenium in medaka (Oryzias latipes) on bioaccumulation of pollutants and histopathological changes in liver and gill were studied. Juvenile medaka fish were submitted to a series of waterborne methylmercury chloride (MMC), sodium selenite (Na2SeO3) and their mixture for 210 days, respectively. The methylmercury (MeHg) and selenium contents in the whole body of medaka were determined. The dose‐ and time‐dependent increase of MeHg and selenium contents in medaka were observed. Histopathological changes, such as edema, vacuoles, pyknotic nucleus, and telangiectasis, could clearly be observed in the slices from the exposed medaka's liver and gill. Concurrent exposure to MMC and Na2SeO3 showed the increased selenium accumulation. When the exposure molar ratio of MeHg:Se was about 1, the interaction between MeHg and selenium offered a limited protection against the serious intoxication of both MMC and Na2SeO3 to medaka. © 2007 Wiley Periodicals, Inc. Environ Toxicol 22: 69–77, 2007.
Interaction of methylmercury and selenium on the bioaccumulation and histopathology in medaka (Oryzias latipes)
Liao, Chun‐Yang (author) / Zhou, Qun‐Fang (author) / Fu, Jian‐Jie (author) / Shi, Jian‐Bo (author) / Yuan, Chun‐Gang (author) / Jiang, Gui‐Bin (author)
Environmental Toxicology ; 22 ; 69-77
2007-02-01
9 pages
Article (Journal)
Electronic Resource
English
Pesticide and Surfactant Mixtures Alter Sexual Differentiation in Japanese Medaka (Oryzias latipes)
| American Chemical Society | 2021