Parasitological indicators, haemato-biochemical alternations, and environmental risks of heavy metals in cultivated and wild freshwater catfish, Egypt

Abbas et al., Mahmoud Mahrous M.

doi:10.21608/ejabf.2023.314426

Cited by 3 publications

References 10 publications

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Heavy Metal Levels and Cancer Risk Assessments of the Commercial Denis, Sparus aurata Collected from Bardawil Lake and Private Fish Farm Waters as a Cultured Source, Egypt

Abbas

2023

Biol Trace Elem Res

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Heavy metal pollution of natural and cultivated habitats may be caused by agricultural, industrial, and human activities. Fish living in these habitats easily accumulate metals in their organs; for food safety and human health, the heavy metals in fish flesh are of major concern due to the harmful nature of these pollutants even in low quantities. In this study, metals (Iron, Fe; Lead, Pb; Cadmium, Cd; Nickel, Ni; Copper, Cu and Zinc, Zn) in the muscle, liver, intestine, and gill of gilthead seabream (Sparus aurata, Denis is local name) were monitored to determine the contamination levels and to investigate the protective impact of cooking methods on the reduction or mitigation of metal levels. Although the Denis samples exhibited relatively low Pb and Cd levels, most fish samples had elevated levels of Fe and Zn. The examined metals accumulated at the highest level in the liver and gills compared to the other organs. Results showed that cooking methods had a considerable effect on concentrations of metals. However, the levels of metal in S. aurata from various sources were reduced significantly (P < 0.05) by frying, microwave, and grilling cooking, which was ordered in the following sequence as microwave cooking < grilling < frying. The consumption of Denis fish from different sources (wild and cultured) has no negative effects on health, according to a study of health hazards based on indices of carcinogenic and non-carcinogenic. The metal results indicated that different fish sources (wild and cultured) could be acceptable for human consumption. Data hypothesized a positive impact of awareness among the native community.

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Heavy Metal Levels and Cancer Risk Assessments of the Commercial Denis, Sparus aurata Collected from Bardawil Lake and Private Fish Farm Waters as a Cultured Source, Egypt

Abbas

2023

Biol Trace Elem Res

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Heavy Metals Assessment and Health Risk to Consumers of Two Commercial Fish Species from Polyculture Fishponds in El-Sharkia and Kafr El-Sheikh, Egypt: Physiological and Biochemical Study

Abbas,

EL-Sharkawy,

Mohamed

et al. 2023

Biol Trace Elem Res

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Metal pollution is a major environmental concern worldwide, especially in Egypt. The aquaculture industry uses widespread artificial feeds to stimulate fish production, leading to metal accumulation in the aquatic environment. Heavy metal concentrations (HMCs) in sediments, water, and tissues were studied to study the effect of pollution levels on heamatological, and biochemical, immunological aspects of farmed fish as well as on human health. Results declared that the HMC levels in the water and sediment were significantly different between El-Sharkia and Kafr El-Sheikh fishponds (T-test, p < 0.05). This was supported by the metal pollution index in the water and sediment, indicating that El-Sharkia fishponds (ES fishponds) were more contaminated than Kafr El-Sheikh fishponds (KES fishponds). Also, HMCs in fish tissues were significantly increased in fish cultivated in ES fishponds than in KES fishponds. Haematological, immunological, and biochemical alterations of Bolti (Oreochromis niloticus) and Topara (Chelon ramada) fish were significantly different within the different fish species as well as the different fishponds. From the human health perspective, the THQ-HMC and HI-HMC associated with the consumption of muscle suggest a safe non-carcinogenic risk to human health. In contrast, cadmium poses a cancer risk to children who consume the muscular tissue of Bolti fish from ES fishponds, which should be regarded as a warning sign based on data indices and a human health perspective. In order to minimise HMC pollution in the aquaculture sector, it is advisable to take possible assessments and carry out continuous monitoring considering international WHO/FAO assessments.

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Elucidating the Role of Prickly Pear Fruits (Opuntia littoralis) in Mitigation of Cadmium Toxicity in Oreochromis niloticus: Impacts on Haemato-Biochemical and Immunological Responses

Abbas,

Amer,

malki

et al. 2024

Preprint

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The purpose of the study was to ascertain the preventative value of dietary supplements with fruits of the prickly pear on the haemato-biochemical and immunological responses of O. niloticus exposed to subacute waterborne cadmium toxicity. Four diets supplemented with different proportions of fruits of 0% (control, OLFE-0% group), 0.5% (OLFE-0.5% group), 1% (OLFE-1% group), and 2% (OLFE-2% group) were administered to tilapia fingerlings for sixty days (pre-cadmium). After the feeding session, the tilapia treatments were subjected to waterborne cadmium toxicity for four days (post-cadmium). Blood samples were captured pre- and post-cadmium exposure to assess the haemato-biochemical and immunological alternations. According to the current findings, nutritional meals fortified with OLFE can enhance tilapia fish's growth performance and digestive enzymes. Nile tilapia fed on OLFE-fortified diets showed a significant reduction in cortisol, alanine transaminase (ALAT), aspartate transaminase (ASAT), glucose, protein, and malondialdehyde (MDA) compared to the control with a basal diet without OLFE (P < 0.05). Additionally, it significantly improves the activities of complement C3, lysozyme, catalase (CAT), total immunoglobulin, superoxide dismutase (SOD), and glutathione peroxidase (GPX). Significant increases in cortisol, leukocytes, glucose, CAT, ALAT, GPX, ASAT, and SOD were observed following exposure to waterborne cadmium. At the same time, there were decreases in erythrocytes, blood indices, hemoglobin, complement C3, packed cell volume, lysozyme, total immunoglobulin, and malondialdehyde (MDA) values. In brief, these findings suggest that supplementing prickly pear fruits to tilapia diets, especially at a level of 2%, can enhance immunological and antioxidant properties and effectively mitigate the harmful effects of Cd exposure in food safety and aquaculture.

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Parasitological indicators, haemato-biochemical alternations, and environmental risks of heavy metals in cultivated and wild freshwater catfish, Egypt

Cited by 3 publications

References 10 publications

Heavy Metal Levels and Cancer Risk Assessments of the Commercial Denis, Sparus aurata Collected from Bardawil Lake and Private Fish Farm Waters as a Cultured Source, Egypt

Heavy Metal Levels and Cancer Risk Assessments of the Commercial Denis, Sparus aurata Collected from Bardawil Lake and Private Fish Farm Waters as a Cultured Source, Egypt

Heavy Metals Assessment and Health Risk to Consumers of Two Commercial Fish Species from Polyculture Fishponds in El-Sharkia and Kafr El-Sheikh, Egypt: Physiological and Biochemical Study

Elucidating the Role of Prickly Pear Fruits (Opuntia littoralis) in Mitigation of Cadmium Toxicity in Oreochromis niloticus: Impacts on Haemato-Biochemical and Immunological Responses

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