Fatty acid composition, enzyme activities and metallothioneins in Donax trunculus (Mollusca, Bivalvia) from polluted and reference sites in the Gulf of Annaba (Algeria): Pattern of recovery during transplantation

Rabei, Amina; Hichami, Aziz; Beldi, Hayet; Bellenger, Sandrine; Khan, Naim Akhtar; Soltani, Noureddine

doi:10.1016/j.envpol.2018.01.041

Cited by 15 publications

(5 citation statements)

References 42 publications

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“…The observed induction of MTs in R. decussatus when exposed to environmental pollution probably shows an adaptive response of the digestive gland to the toxicological manifestation induced by TEs, especially Cd and Pb. Our results are in agreement with previous studies carried out by Rabei et al (2018) on Donax trunculus collected seasonally from polluted sites in the gulf of Annaba and Bejaoui et al (2020) on R. decussatus collected from Tunisian lagoons.…”

Section: Discussionsupporting

confidence: 94%

“…The occurrence of protein oxidation in the digestive gland of R. decussatus was also confirmed by the level of AOPP, which reflects an excess of free radical generation (Prevodnik et al 2007). The comparison between sites showed higher AOPP levels in the digestive gland of clams from the MCA and the HCA than in those from the LCA, suggesting the important role of TEs in the exertion of protein oxidation (Rabei et al 2018).…”

Section: Discussionmentioning

confidence: 77%

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Assessment of oxidative stress, genotoxicity and histopathological responses in the digestive gland of Ruditapes decussatus collected from northern Tunisian lagoons

Bejaoui

Rabeh

Telahigue

et al. 2020

scimar

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The aim of the present study was to investigate the combined effects of seasonality and anthropogenic pressure on a battery of oxidative stress, lipid peroxidation, protein oxidation, DNA damage and histological alterations in the native clam Ruditapes decussatus collected from a less contaminated area (LCA), Ghar El Melh, a moderately contaminated area (MCA), the North Lake, and a highly contaminated area (HCA), the South Lake, all located in the southern Mediterranean Sea. The accumulation of cadmium, lead, copper, iron and zinc was higher in the digestive glandsof clams collected from the MCA and the HCAthan in those from the LCA, particularly during the warm season. Our results reveal that metallothionein, lipid peroxidation, protein oxidation levels and antioxidant defence systems were higher, while acetylcholinesterase activity was lower, in clams from the MCAand HCAthan in those from the LCA. The results also indicate that clams from the MCA and the HCAare characterized by histological alterations and DNA damage. In conclusion, the evident changes of antioxidant defence systems and macromolecules between the studied lagoons reveal the perturbation of the physiological states of clams from polluted sites thatcope with seasonal changes and trace element accumulations.

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Section: Discussionsupporting

confidence: 94%

Section: Discussionmentioning

confidence: 77%

Assessment of oxidative stress, genotoxicity and histopathological responses in the digestive gland of Ruditapes decussatus collected from northern Tunisian lagoons

Bejaoui

Rabeh

Telahigue

et al. 2020

scimar

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“…The D6D and ELOVL 2 activities were calculated, respectively, according to the following ratios: (C20:4n-3/C18:3n-3) and (C22:2n-6/C20:2n-6) (Fadhlaoui and Couture, 2016; Rabei et al, 2018).…”

Section: Methodsmentioning

confidence: 99%

Fatty acid profile and antioxidant status inVenus verrucosagills as λ-cyhalothrin toxic effects

et al. 2020

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The aim of this study was to analyze the biochemical alterations in the gills of Venus verrucosa under exposure for 6 days to three doses of lambda-cyhalothrin (λ-cyh) (100, 250, and 500 µg L−1). Malondialdehyde, lipid hydroperoxide, and hydrogen peroxide levels in the gills of treated groups increased. λ-Cyh exposure significantly increased the protein carbonyl and reduced glutathione levels in the gills of all treated groups. Moreover, the activities of superoxide dismutase and glutathione peroxidase were increased. In our study, the polyunsaturated fatty acid (FA), omega-6, eicosapentaenoic acid (C20:5n-3), and docosahexaenoic acid (C22:6n-3) were increased in the treated groups. A significant decrease in the saturated FAs, omega-3, and arachidonic acid (C20:4n-6) levels was observed. The content of monounsaturated FA was changed in the groups treated with 100 and 250 µg L−1 of λ-cyh. As a corollary, desaturase and elongase activities were significantly increased. Our study provides evidence of the underlying toxic mechanism of λ-cyh and its capacity to create oxidative stress and revealed that FA profiling is a new approach for elucidating the λ-cyh toxicity.

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“…Previous studies have used FAs as biomarkers for trophic level indication in marine mammals (Guerrero et al, 2016;Budge et al, 2008), shark (Pethybridge, Daley and Nichols, 2011), fish (Würzberg et al, 2011;Olsen et al, 2015), invertebrates (Allan et al, 2010;Rabei et al, 2018;Soler-Membrives, Rossi and Munilla, 2011) and zooplankton (Deschutter et al, 2019;Gonçalves et al, 2012). However, these biomarkers can be affected by an organism's ability to metabolise and transform FAs which may vary within and between species at the same or similar trophic levels.…”

Section: Introductionmentioning

confidence: 99%

Understanding marine food web dynamics using fatty acid signatures and stable isotope ratios: Improving contaminant impacts assessments across trophic levels

Madgett

Yates

Webster

et al. 2019

Estuarine, Coastal and Shelf Science

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Fatty acid composition, enzyme activities and metallothioneins in Donax trunculus (Mollusca, Bivalvia) from polluted and reference sites in the Gulf of Annaba (Algeria): Pattern of recovery during transplantation

Cited by 15 publications

References 42 publications

Assessment of oxidative stress, genotoxicity and histopathological responses in the digestive gland of Ruditapes decussatus collected from northern Tunisian lagoons

Assessment of oxidative stress, genotoxicity and histopathological responses in the digestive gland of Ruditapes decussatus collected from northern Tunisian lagoons

Fatty acid profile and antioxidant status inVenus verrucosagills as λ-cyhalothrin toxic effects

Understanding marine food web dynamics using fatty acid signatures and stable isotope ratios: Improving contaminant impacts assessments across trophic levels

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