Cadmium‐Induced Bioaccumulation in the Selected Tissues of a Freshwater Teleost, <i>Oreochromis mossambicus (Tilapia)</i>

Rani, A. Usha

doi:10.1111/j.1749-6632.2000.tb06895.x

Cited by 24 publications

(11 citation statements)

References 8 publications

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“…After reaching an animal's body, cadmium is transported in the blood by red blood cells and large protein molecules. In fishes, cadmium has been reported to accumulate and cause serious damage to various tissues and organs (Hilmy et al, 1985;Rani, 2000;Bervoets et al, 2001;Rashed, 2001;Szebedinszky et al, 2001;Rangsayatorn et al, 2004;Wangsongsak et al, 2007;Oner et al, 2008). Also, cadmium exposure to fish provoked hypocalcemia (Larsson et al, 1981;Muramoto, 1981;Giles, 1984;Kuroshima, 1987;Pratap et al, 1989;Chowdhury et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Ultimobranchial gland of a freshwater teleost, Heteropneustes fossilis, in response to cadmium treatment

Rai

Mishra

Srivastav

et al. 2008

Environmental Toxicology

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Heteropneustes fossilis were subjected to 288 mg/L (0.8 of 96 h LC(50)) and 72 mg/L (0.2 of 96 h LC(50)) of cadmium chloride for short-term and long-term experiments, respectively. After sacrificing the fish, the blood was collected on 24, 48, 72, and 96 h in short-term and after 7, 14, 21, and 28 days in long-term experiment and analyzed for plasma calcium levels. Also, ultimobranchial glands were fixed on these intervals. The plasma calcium levels of short-term cadmium-exposed fish remain unchanged after 24 h. The levels exhibit a progressive decrease from 48 h onwards. The fish exposed to cadmium for 7 days exhibit a decrease in the plasma calcium level. Thereafter, the levels progressively decrease till the end of the experiment (28 days). Up to 72 h exposure of the fish to cadmium, the ultimobranchial gland exhibits no histological change. After 96 h, a decrease in the staining response of the cytoplasm of ultimobranchial cells has been noticed. The nuclear volume of these cells records a slight decrease. Up to 14 days of cadmium exposure, there is no change in the histological structure of ultimobranchial gland. After 21 days following the exposure, the ultimobranchial cells exhibit a slight decrease in the staining response of the cytoplasm and the nuclear volume of these cells records a decrease. Following 28 days cadmium exposure the nuclear volume exhibits a further decrease, and degeneration and vacuolization sets in.

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Section: Introductionmentioning

confidence: 99%

Ultimobranchial gland of a freshwater teleost, Heteropneustes fossilis, in response to cadmium treatment

Rai

Mishra

Srivastav

et al. 2008

Environmental Toxicology

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“…The studies carried out on various fishes have shown that heavy metals may alter the physiological activities and biochemical parameters both in tissues and in blood (Basa and Rani, 2003;Canli, 1995;Tort and Torres, 1988). The toxic effects of heavy metals have been reviewed, including bioaccumulation (Waqar 2006;Adami et al, 2002;Rasmussen and Anderson, 2000;Rani, 2000;Aucoin et al, 1999). The organisms developed a protective defense against the deleterious effects of essential and inessential heavy metals and other xenobiotics that produce degenerative changes like oxidative stress in the body (Abou EL-Naga et al, 2005;Filipovic and Raspor, 2003).…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation of heavy metals in organs of fresh water fish Cyprinus carpio (Common carp)

Vinodhini

Narayanan

2008

Int. J. Environ. Sci. Technol.

389

171

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ABSTRACT:The objective of the present study is to determine the bioaccumulation of heavy metals in various organs of the fresh water fish exposed to heavy metal contaminated water system. The experimental fish was exposed to Cr, Ni, Cd and Pb at sublethal concentrations for periods of 32 days. The elements Cd, Pb, Ni and Cr were assayed using Shimadzu AA 6200 atomic absorption spectrophotometry and the results were given as µg/g dry wt. The accumulation of heavy metal gradually increases in liver during the heavy metal exposure period. All the results were statistically significant at p < 0.001. The order of heavy metal accumulation in the gills and liver was Cd > Pb > Ni > Cr and Pb > Cd > Ni > Cr. Similarly, in case of kidney and flesh tissues, the order was Pb > Cd > Cr > Ni and Pb > Cr > Cd > Ni. In all heavy metals, the bioaccumulation of lead and cadmium proportion was significantly increased in the tissues of Cyprinus carpio (Common carp).

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“…16,17 Some metals are essential to maintain the human body's metabolism, but they can lead to poisoning as a result of bioaccumulation. 18 Lead (Pb) and cadmium (Cd) increase oxidative stress, 19 The inclusion criteria for entry into the study were: normal blood pressure during the first 20 weeks of gestation (for PE women); no previous history of metabolic disorders, renal disease, chronic hypertension or diabetes mellitus; and no history of antioxidant, antihypertensive medication, or aspirin intake. None of the patients could be taking any drugs at the time of collection of the blood samples.…”

Section: Introductionmentioning

confidence: 99%

Catalase Activity, Serum Trace Element and Heavy Metal Concentrations, and Vitamin A, D and E Levels in Pre-Eclampsia

et al. 2008

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Catalase (antioxidant enzyme) activity in erythrocytes and serum levels of trace elements (copper, iron, zinc), heavy metals (cadmium, cobalt) and vitamins A (retinol), D (cholecalciferol) and E (atocopherol) were measured in 145 subjects comprising 47 pre-eclamptic pregnant women (PE), 48 healthy pregnant women (HP) and 50 healthy non-pregnant controls (NP). Catalase, vitamins A, D and E and levels of cobalt were significantly lower in the PE group compared with the HP and NP groups, whereas levels of copper, iron and cadmium were significantly higher in the PE group than in the HP and NP groups. Levels of zinc were significantly lower in both the PE and HP groups compared with the NP group. This assessment of oxidant/ antioxidant imbalance in pregnant women could be useful in the early identification of pre-eclampsia and antioxidant supplementation in the early weeks of gestation might be useful.

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Cadmium‐Induced Bioaccumulation in the Selected Tissues of a Freshwater Teleost, Oreochromis mossambicus (Tilapia)

Cited by 24 publications

References 8 publications

Ultimobranchial gland of a freshwater teleost, Heteropneustes fossilis, in response to cadmium treatment

Ultimobranchial gland of a freshwater teleost, Heteropneustes fossilis, in response to cadmium treatment

Bioaccumulation of heavy metals in organs of fresh water fish Cyprinus carpio (Common carp)

Catalase Activity, Serum Trace Element and Heavy Metal Concentrations, and Vitamin A, D and E Levels in Pre-Eclampsia

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