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Nesrine Gdoura Abdelwaheb Abdelmouleh Jean-Claude Murat Khansa Chaabouni Fatma Makni-Ayedi Abdelfattah Elfeki 《Environmental Chemistry Letters》2012,10(2):193-199
An adequate human diet should satisfy the requirements for energy and nutritive components including essential polyunsaturated fatty acids, essential amino acids, mineral components, vitamins, and fat. The benefits of the fish consumption are, however, often counteracted by toxic metals such as lead present in fish meat. Adverse effects of toxic metals on the aquatic environment and human health have aroused increasing interest in recent years. The achievement of an appropriate balance between the risks and benefits associated with fish consumption has therefore become a key health issue in current research. Therefore, we studied health impacts associated with the consumption of sardine fish, one of the most commonly consumed fish species throughout the world. Hepatic damages associated with the consumption of white or red muscle of sardine fish were explored and evaluated using a rat model. Rats were fed for 60 days with white or red sardine meat. Findings revealed (1) an elevated level of uric acid in the blood, (2) an accumulation of lead in the liver, (3) an atrophy of the liver, (4) an increase in plasma aspartate aminotransferase and alanine aminotransferase activities, and (5) an oxidative stress in the liver, including increased levels of lipid peroxidation and enhanced activities of superoxide dismutase, catalase, and glutathione peroxidase. Several abnormalities were also observed in liver histology. The alterations observed in the animals can be attributed to both the accumulation of lead and the high levels of purine in the sardine meat. The findings show that special attention should be given to the health effects associated with high intakes of sardine meat, particularly dark-meat sardine. 相似文献
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Nesrine Gdoura Abdelwaheb Abdelmouleh Khansa Chaabouni Fatma Makni Ayadi Fadhel Guermazi Jean-Claude Murat Abdelfattah Elfeki 《Environmental Chemistry Letters》2011,9(2):273-278
Fish, a widely claimed healthy food for humans, could also pose problems to health due to (1) accumulation of pollutants,
especially heavy metals, (2) presence of marine toxins such as tetrodotoxin, ciguatoxin or okadaic acid and (3) metabolic
production of large amount of uric acid which may crystallize in kidney or in articulations. As tuna fish represents a large
part of the traditional food in some countries, the possible impact of its consumption on public health was investigated,
with special attention to biochemical and histological alterations related to the genital function. For that purpose, white
or red muscle from tuna fish was added for 60 days to the diet of male rats, and attention was paid to biochemical and histological
alterations related to the genital function. Feeding rats with white muscle, and much more markedly with red muscle known
to be more metabolically active, resulted in (1) an elevated uric acid level in blood, (2) an increase in lead level in testis,
(3) an atrophy of the genital tract, including testes, epididymis, prostate and seminal vesicles, (4) a lowering of plasma
testosterone level, (5) a decrease in spermatozoids number and motility, (6) an oxidative stress in testes including an increase
in lipids peroxidation level and enhanced superoxide-dismutase, catalase and glutathione-peroxidase activities. We conclude
that consumption of tuna fish meat, especially the dark one, should be reduced. 相似文献
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Nesrine Gdoura Abdelwaheb Abdelmouleh Jean-Claude Murat Khansa Chaabouni Fatma Makni-Ayedi Abdelfattah Elfeki 《Environmental Chemistry Letters》2011,9(4):485-490
In recent years, a number of studies have clearly pointed out the nutritional benefits of fish consumption. However, some concerns about potential health risks derived from contaminants found in fish have also been raised. Therefore, balancing adequately the risks and benefits of fish consumption is currently a health key issue. As tuna fish represents a large part of the traditional food in some countries, the possible impact of tuna fish consumption on public health was investigated. Hepatic damages following consumption of tuna fish white (ordinary) or red (dark) muscle were evaluated in rat. Under our experimental conditions, feeding the animals for 60?days with white or, more markedly, red tuna meat resulted in 1) an elevated uric acid level in blood, 2) an accumulation of lead in liver, 3) an atrophy of liver, 4) an increase in plasma aspartate aminotransferase and alanine aminotransferase activities, and 5) an oxidative stress in liver including an increased level of lipids peroxidation and enhanced activities of superoxide dismutase, catalase and glutathione peroxidase. In addition, liver histology revealed several abnormalities. These alterations could be attributed to both lead accumulation and high purine levels in tuna meat. We conclude that attention should be paid to a possible health impact of frequent and important consumption of tuna fish meat, especially the dark one. 相似文献
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Amine Mezni Samir Alghool Badreddine Sellami Nesrine Ben Saber Tariq Altalhi 《Chemistry and Ecology》2018,34(3):288-299
Little information is available on the potential ecotoxicity of nanomaterials in the marine environment. In particular, the aquatic ecotoxicity impact of titanium dioxide (TiO2) has been rarely reported. To carefully address this issue, we report on the synthesis of TiO2 NPs using solvothermal process. The structure and morphology of the prepared TiO2 nanoparticles were characterised using different techniques. To study the potential ecotoxicity effect of TiO2, antioxidant system of mediterranean bivalves (Mytilus galloprovincialis) was used, measuring three oxidative biomarkers (ROS production, SOD activity and GSH/GSSG level). No considerable effect was found in the digestive glands of any of the groups treated with TiO2 with concentration gradients ranging from 1 to 100?mg/L. Thus, the level of the superoxide anion, the activity of an antioxidant enzyme superoxide dismutase (SOD) and the GSH/GSSG ratio showed no significantly differences in digestive glands of all treated groups compared to the control. However, slight modifications were observed in the gills at high concentrations. These results demonstrated that TiO2 appears to exert little toxicity on marine mussels after a short-term exposure at high concentration. However, before considering the use of this nanomaterial in various applications, further complementary studies are required in order to ensure the environmental safety of these NPs. 相似文献
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Trifi Mariem Gasmi Anis Carbone Cristina Majzlan Juraj Nasri Nesrine Dermech Mohja Charef Abdelkrim Elfil Hamza 《Environmental science and pollution research international》2022,29(58):87490-87508
Environmental Science and Pollution Research - In northern Tunisia, Sidi Driss sulfide ore valorization had produced a large waste amount. The long tailings exposure period and in situ minerals... 相似文献
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