Physiological effects of dietary cadmium acclimation and waterborne cadmium challenge in rainbow trout: respiratory, ionoregulatory, and stress parameters

Chowdhury, M. Jasim; Pane, Eric F.; Wood, Chris M.

doi:10.1016/j.cca.2004.10.006

Cited by 54 publications

(37 citation statements)

References 44 publications

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“…This is in agreement with what has previously been reported from fish, namely that the accumulation and effects of heavy metals in organs/tissues depend on the administration route, the concentration, and the duration of exposure to contaminants [46]. Different authors have demonstrated that metal levels have increased in the blood of fish when they were exposed to heavy metals [47,48].…”

Section: Discussionsupporting

confidence: 91%

Effects of zinc and cadmium on erythrocyte antioxidant systems of a freshwater fish Oreochromis niloticus

Fırat

Kargın

2010

J Biochem & Molecular Tox

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In this work to determine the effects of metals exposure of Oreochromis niloticus on erythrocyte antioxidant systems, fish were exposed to 5.0 mg/L Zn, 1.0 mg/L Cd, and 5.0 mg/L Zn + 1.0 mg/L Cd mixtures for 7 and 14 days and reduced glutathione (GSH) level, catalase (CAT), and glucose-6-phosphate dehydrogenase (G6PD) activities were investigated. In addition, Zn or Cd levels in whole blood were studied. Erythrocyte GSH level and CAT and G6PD enzyme activities increased in response to single and combined Zn and Cd exposure. The elevation observed in the CAT activity was higher in the Cd alone, and in combination with Zn, than in Zn alone. Time-dependent alteration was not observed in all antioxidant parameters. Exposure to metals (alone and in mixture) resulted in elevatation of Zn and Cd levels in the blood. Concentration of metals in the blood of fish exposed to the Zn + Cd combination was lower than in fish exposed to the single metal. This study demonstrates that metals caused oxidative stress in fish erythrocytes, and an adaptation with an increase in CAT and G6PD activities and GSH level, which were important in the protection against metal damage, was observed.

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Section: Discussionsupporting

confidence: 91%

Effects of zinc and cadmium on erythrocyte antioxidant systems of a freshwater fish Oreochromis niloticus

Fırat

Kargın

2010

J Biochem & Molecular Tox

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“…Plasma cortisol is considered to be a sensitive indicator of stress in fish [16,17,26], which implies that the exposed carp were in a stressed state. Similar increases in plasma cortisol have been reported in other fish exposed to cadmium, and to other heavy metals, but the changes generally occurred within 4 h [27]. In silver carp, a significant increase in cortisol was observed only after 24 h exposure, although mean values began to increase immediately.…”

Section: Hematological Responses To Cadmium Exposuresupporting

confidence: 81%

Exposure of silver carp (Hypophthalmichthys molitrix) to environmentally relevant levels of cadmium: hematology, muscle physiology, and implications for stock enhancement in the Xiangjiang River (Hunan, China)

Zhang

Zhuo

et al. 2013

Sci. China Life Sci.

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Cadmium is a non-essential metal with a wide distribution that has severe toxic effects on aquatic animals. Changes in hematology and muscle physiology were examined in silver carp (Hypophthalmichthys molitrix) exposed to environmentally relevant levels of cadmium (0.01 mg L 1 ) for 96 h. Cadmium exposure induced significant increases in the red blood cell count, and in the plasma concentrations of cortisol, glucose, and lactate. This suggests that the dose of cadmium was sufficient to cause stress, possibly associated with impaired gas exchange at the gills. There were no changes in hemoglobin concentration or plasma protein concentration. Significant decreases in muscle energy fuels (ATP and glycogen), and increases in muscle lactate persisted until the end of the exposure period, respectively. The changes in muscle lactate and protein in silver carp differed from those observed in response to exposure of fish to cadmium and heavy metals in other studies. The study highlights the importance of selecting unpolluted release sites with suitable water conditions for the survival of newly released individuals for stock enhancement of the Xiangjiang River. silver carp, hematology, muscle physiology, cadmium exposure, stock enhancement Citation:Zhang T, Zhang Y, Li D L, et al. Exposure of silver carp (Hypophthalmichthys molitrix) to environmentally relevant levels of cadmium: hematology, muscle physiology, and implications for stock enhancement in the Xiangjiang River

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“…The declined number of RBC in fish caused by toxicant exposure has been announced by Allin and Wilson (2000) and Chowdhury et al, (2004).…”

Section: Discussionmentioning

confidence: 99%

Effect of Mercuric Chloride on Some Hematological, Biochemical Parameters in Silver Carp (Hypophthalmichthys Molitrix)

Hedayati¹,

Ghaffari²

2013

IJVMR

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The mutual action between a toxicant and a biological system can be calculated using hematological, biochemical biomarkers. The immunological, hematological and biochemical indices of silver carp (Hypophthalmichthys molitrix) were investigated under low (10%LC50) and high (50%LC50) concentrations of mercury chloride for 96h. In both concentrations Ht, Hb, RBC, lymphocyte were significantly (p<0/05, p<0/01) lower than controls group whereas MCH, MCHC, WBC, Glucose, neutrophil, eosinophil were significantly (p<0/05, p<0/01) larger contrasted to the respective controls group. In low and high concentrations MCV, cortisols respectively were lower than control group. A significant decrease in high concentrations in cortisol level may be as cortisol suppression due to high stresses. The consequential discoveries of this study are that mercury chloride concentrations (low and high) may cause some substitutions in the hematological, biochemical and immunological parameters of the studied fish, so estimation of these indices, could supply a useful indicator of mercury chloride of water bodies. It appears that MCH, eosinophil in low concentrations and lymphocyte in high concentrations is appropriate biomarkers of mercury chloride in silver carp.

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Physiological effects of dietary cadmium acclimation and waterborne cadmium challenge in rainbow trout: respiratory, ionoregulatory, and stress parameters

Cited by 54 publications

References 44 publications

Effects of zinc and cadmium on erythrocyte antioxidant systems of a freshwater fish Oreochromis niloticus

Effects of zinc and cadmium on erythrocyte antioxidant systems of a freshwater fish Oreochromis niloticus

Exposure of silver carp (Hypophthalmichthys molitrix) to environmentally relevant levels of cadmium: hematology, muscle physiology, and implications for stock enhancement in the Xiangjiang River (Hunan, China)

Effect of Mercuric Chloride on Some Hematological, Biochemical Parameters in Silver Carp (Hypophthalmichthys Molitrix)

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