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13 articles for “sublethal toxicity”
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Sublethal Toxic Effect of Paraquat Dichloride on Tissue Biochemical Markers in Labeo rohita
Abstract: The present study investigated the sublethal toxic effect of the commercial grade herbicide, Paraquat dichloride (24% SL), on Labeo rohita stressing the importance on biochemical parameters. Fishes were exposed to the sublethal concentrations of paraquat dichloride (5 μg/l and 10 μg/l) for 24 h in treated groups. Treated groups showed highly changed biochemical parameters on their exposure to the herbicide paraquat, when compared to the control. Tissues such as brain, …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 11, Issue 2, 2021 · pp. 20–28 Read article
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Hematological and Biochemical Changes in the Freshwater Fish, Pseudetroplus Maculatus Exposed to Sublethal Concentrations of Chlorpyrifos
Abstract: Sublethal effects of chlorpyrifos on hematological and biochemical parameters were assessed in the freshwater fish, Pseudetroplus maculatus. Fish were exposed to chlorpyrifos at two sublethal concentrations, 0.661 µg/L (one-tenth of LC50—96 h) and 1.32 µg/L (one-fifth of LC50—96 h), for 15 and 30 days maintaining the control group. Blood collected from the control and treated groups were used for analyzing the hematological and biochemical parameters. Chlorpyrifos exposure significantly (P<.05) decreased …
Published in Research and Reviews : A Journal of Life Sciences · Vol. 8, Issue 3, 2018 · pp. 108–116 Read article
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Assessment of Hepatic Damage in Labeo rohita (Hamilton, 1822) Exposed to Azo dye C. I. Direct Green 6
Abstract: Textile industries are one of the major backbones of Indian economy. They are the major reason for contamination of water bodies and their toxicity to ecosystem is an alarming environmental issue. The present study was designed to evaluate the hepatotoxic effects of C.I. Direct Green 6 (DG 6), a commercially used textile azo dye on Labeo rohita fingerlings. For this, L. rohita fingerlings were exposed to three sublethal concentrations (2.5, …
Published in Research and Reviews : Journal of Veterinary Science and Technology · Vol. 10, Issue 4, 2021 · pp. 1–8 Read article
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Study of Nickel Toxicity and Recovery in Freshwater Major Carp Catla catla
Abstract: The present work was carried out to examine the hazardous effects of chronic intoxication of nickel ions in Catla catla, a fresh water major carp. Fingerlings were exposed to sublethal concentrations of nickel sulphate solution (5 ppm and 10 ppm) for 21 days and histotoxicity in liver, brain and intestine was studied periodically. Normal architecture of hepatocytes was disrupted. The histopathological manifestations observed in the liver were congestion of hepatocytes, …
Published in Research and Reviews: A Journal of Toxicology · Vol. 1, Issue 1-3, 2011 · pp. 63–73 Read article
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Alteration in Metabolic Enzymes of Albino Rats under Cadmium Stress and their Modulation by Mentha Piperita
Abstract: Cadmium is a heavy metal posing severe risks to human health without any physiological function in the human body. Cadmium is found regularly in soil, rocks and ores, thus natural exposure is an important aspect, but increasing industrial application has put it in the category of bio-hazardous metals. Anticorrosive agents, stabilizer in PVC products, colour pigments, neutron-absorber in nuclear power plants, the fabrication of nickel-cadmium batteries and Phosphate fertilizers carry …
Published in Research and Reviews: A Journal of Toxicology · Vol. 3, Issue 3, 2013 · pp. 1–4 Read article
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Cadmium Accumulation in Different Tissues and DNA Content Alteration in Cat Fish (Clarias batrachus) Exposed to Lethal Concentration of Cadmium
Abstract: In the present study, the acute toxicity experiment was conducted to evaluate LC50 of Cadmium chloride (CdCl2) on Clarias batrachus which was found to be 450 ppm for 96 h. Clarias batrachus (average length of 8.5 ± 0.4 cm and the average weight of 13.5 ± 0.393 g) was exposed to sub-lethal concentration (140 ppm) and lethal (450 ppm) concentrations of Cd for 14 days. The Cd accumulation in tissues …
Published in Research and Reviews: A Journal of Toxicology · Vol. 10, Issue 3, 2020 · pp. 1–8 Read article
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Histological Alteration in the Kidney of a Fresh Water Cat Fish Clarias Batrachus Exposed to Silver Nanoparticles
Abstract: Despite increasing application of silver nanoparticles (NPs) in industry and consumer products, there is still little known about their potential toxicity, particularly to organism in aquatic environment. Our aim is to investigate the fate and effect of silver NPs in fish Clarias batrachus. The histological alterations in the kidney of a freshwater catfish Clarias batrachus exposed to sublethal concentration silver nanoparticle were examined. The kidney exhibited shrinkage of glomeruli but …
Published in Journal of Nanoscience, NanoEngineering & Applications · Vol. 9, Issue 2, 2019 · pp. 1–8 Read article
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Effect of Nitrite on Oxygen Consumption and Ammonia Excretion of the Fresh Water Crab Paratelphusa jacquemontii (Rathbun)
Abstract: In aquatic ecosystem, nitrite concentrations are elevated by pollution with nitrogenous wastes and imbalances in bacterial nitrification and denitrification processes. Nitrite is transformed by nitrification to nitrate under aerobic condition. The effects of nitrite on physiology were investigated in the fresh water crab, Paratelphusa jacquemontii (carapace length 4–5 cm and weight 50–70 g) for 96 h. The crabs were exposed to sublethal concentration (1/10th and 1/20th of 96 h LC50) …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 4, Issue 1, 2013 · pp. 20–24 Read article
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Ameliorating Effect of Vitamin C on Acid Orange 7 Induced Oxidative Stress in the Gill of the Fish, Anabas testudineus (Bloch, 1792)
Abstract: Acid orange 7, an azo dye, was exposed to Anabas testudineus at a sublethal concentration (0.27 g/l) for 24, 72 and 96 h in order to evaluate the antioxidant status in the gill tissue. In addition, vitamin C at 0.55 g/l was exposed for 7 days after the dye exposure. Acid orange 7 decreased the body weight of fish, whereas mucous deposition increased significantly as the first line of defensive …
Published in Research and Reviews: A Journal of Toxicology · Vol. 8, Issue 3, 2018 · pp. 15–27 Read article
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Effects of Chlorpyrifos as Inducer for Oxidative Stress in Liver, Kidney and Spleen of Freshwater Fish, Pseudetroplus maculatus (Bloch, 1795)
Abstract: Chlorpyrifos is one of the most common organophosphate insecticides found abundantly in freshwater ecosystems and has been detected in agricultural and fishery products worldwide. The study focused to determine the effect of chlorpyrifos on the induction of oxidative stress in freshwater fish Pseudetroplus maculatus. Fish were exposed to sublethal concentrations (0.661 and 1.32 μg/l) of chlorpyrifos for 15 and 30 days. Activities of antioxidant enzymes and the levels of hydrogen …
Published in Research and Reviews: A Journal of Toxicology · Vol. 8, Issue 1, 2018 · pp. 20–29 Read article
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Impact of Profenofos on Oxygen Consumption and Gill Histopathology of the Fresh Water Crab, Paratelphusa jacquemontii (Rathbun)
Abstract: In fresh water crab, gills are crucial for respiration, excretion, acid-base balance, and osmotic and ionic regulation. Profenofos, a well-known organophosphate pesticide has been in agricultural use over the last two decades for controlling pests of paddy, cotton and tobacco. In the present study, an attempt has been made to study the effect of profenofos on oxygen consumption and gill histopathology of the freshwater crab, Paratelphusa jacquemontii (Rathbun). The crabs …
Published in Research and Reviews: A Journal of Toxicology · Vol. 2, Issue 2, 2012 · pp. 46–55 Read article
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The Effect of Vitamin C on the Reproductive Functions of Paraquat Intoxicated Male Albino Rats (Rattus norvegicus)
Abstract: Paraquat (PQ) is a bipyridylium herbicide applied around trees in Orchids and between crop rows to control broad-leaved and grassy weeds. Its oxidation results in the formation of superoxides and supernitrite species which causes damage to cellular components. Studies have implicated PQ as one of the pesticides that contributes to the reduction in male reproductive functions in humans and animals during exposure. This study, therefore, determined the antioxidant effect vitamin …
Published in Research and Reviews: A Journal of Toxicology · Vol. 4, Issue 3, 2014 · pp. 9–29 Read article
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Pyrethroid Mediated Some Macromolecular and Biochemical Changes in Freshwater Teleost
Abstract: Abstract In present investigation, a freshwater fish Channa punctatus was exposed for 21 days to synthetic pyrethroid malathion at sublethal concentrations of 0.007mg L−1 and 0.093 mg L−1 that represented 10% of the 96 h LC50 of the pesticide for this fish. Tissue samples were collected at the end of the experiment and analyzed to determine oxidant/antioxidants status (catalase, LDH, DNA content, protein content, cortisol, etc.) of the fish. Enzyme …
Published in Research and Reviews: A Journal of Toxicology · Vol. 10, Issue 2, 2020 · pp. 14–21 Read article