Oxidative stress on land snail Helix aspersa as a sentinel organism for ecotoxicological effects of urban pollution with heavy metals

Abdel-Halim, Khaled Y.; El-Saad, Abu; Talha, M. M.; Hussein, Ahmed; Bakry, Niveen S.

doi:10.1016/j.chemosphere.2013.06.042

Cited by 46 publications

(12 citation statements)

References 34 publications

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“…GST requires GSH for conjugation of xenobiotics and proper detoxification. Therefore, depletion of GSH may, in turn, lead to disruption in the activity of the GST (Abdel-Halim et al, 2013). AR may be classified as a secondary antioxidant enzyme because it helps to metabolize organophosphates.…”

Section: Discussionmentioning

confidence: 99%

Bioaccumulation of heavy metals, lipid profiles, and antioxidant status of snails (Achatina achatina)around cement factory vicinities

et al. 2020

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Some snails ( Achatina spp) can be used as a biosensor of heavy metal poisoning. This study thus estimated some heavy metal levels, antioxidant markers, and lipid profiles of snails handpicked around cement factory vicinities in Ogun State, Nigeria. Snails and soil samples were collected from Oke, Ewekoro, Papalanto, and Mowodani Imeko-Afon (control site). Lead (Pb), cadmium (Cd), and arsenic (As) levels were estimated in the soil, snail foot, hemolymph, and shell using Atomic Absorption Spectrophotometry. Triacylglycerol (TAG), phospholipids (PHOL), cholesterol (CHOL), malondialdehyde (MDA), and reduced glutathione (GSH) levels, as well as glutathione- S-transferase (GST), lactate dehydrogenase (LDH), and arylesterase (AR) activities in the hemolymph, were estimated spectrophotometrically. The snails collected from the Oke site had the highest foot Pb (274.66 ± 13.50 mg/g tissue), CHOL, TAG, PHOL levels, and GST activity when compared with other sites. Snails collected from Papa had the highest Cd levels (1.79 ± 0.74 mg/kg), As (1206 ± 18.87 mg/g tissue) in the foot, and LDH activity, while Ewekoro snails had highest MDA levels and AR activities but the lowest GSH levels. Additionally, there were negative correlations between the heavy metal levels and the activities of GST and AR as well as GSH levels, while positively correlating with LDH activity and MDA level. Workers and the general public around cement factories are at a greater risk of heavy metal-induced pathologies. More so, consumption of snails around these sites may be deleterious to health.

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Section: Discussionmentioning

confidence: 99%

Bioaccumulation of heavy metals, lipid profiles, and antioxidant status of snails (Achatina achatina)around cement factory vicinities

et al. 2020

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“…Yet, the digestive gland showed higher values of gIBRv2 compared to intestine, mantle, and kidney. This could de due to its high capacity to uptake and concentrate contaminants, which suggests the usefulness of this organ for monitoring biochemical responses (Abdel-Halim et al, 2013).…”

Section: Discussionmentioning

confidence: 99%

Oxidative stress, lipid metabolism, and neurotransmission in freshwater snail (Pomacea patula) exposed to a water-accommodated fraction of crude oil

2017

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Background. Crude oil is a super mixture of chemical compounds and is commonly found in aquatic environments. The tegogolo (Pomacea patula Baker, 1922) is a Mexican freshwater snail endemic to Lake Catemaco in Veracruz; currently, however, its distribution has expanded to many freshwater ecosystems that suffer the impact of crude oil spills and oil byproducts like fuels. Goals. To assess a series of biomarkers involved in oxidative stress, neurotransmission, and fatty acid metabolism in tegogolos exposed to the water-accommodated fraction (WAF) of Maya crude oil (MCO). Methods. Tegogolo specimens were exposed to WAF of MCO obtained from loads of 0.1, 1, 10 and 100 mg/L. We evaluated ROS (O 2-* and H 2 O 2), oxidative stress (TBARS and RC=O), enzymes involved in antioxidant defense (SOD, CAT, and GPx), some enzymes involved in neurotransmission (AChE, GDA, and CbE activities), and biomarkers of fatty acids metabolism (fatty acids levels and AOX activity). Results. Clear biomarkers responses were observed only in some tissues. ROS were clearly higher than controls in the foot, head, and kidney; however, others biomarkers of oxidative stress remain statistically unchanged. SOD response was irregular with respect to controls and treatments. In contrast, CAT (foot) and GPx (foot and intestine) were the more active enzymes and their activities were higher than in controls. The responses of some enzymes involved in neurotransmission suggest that compensation mechanisms exist between AChE and GDA in the foot and head. Fatty acids metabolism increased with exposure to WAF; however, these types of biomarkers seem unsuitable for monitoring the toxic effects produced by WAF at low environmental concentrations. Conclusions. We can conclude that under the exposure conditions discussed herein, the tegogolos showed acclimation to WAF of Maya crude oil by complex mechanisms.

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“…It is considered as one of the main region due to the fact that, a number of large factories are established in it, especially chemical industries. Ecosystem around this region has an extensive exposure to chemical influents (Abdel-Halim et al, 2013). Algae, L. minor (family; Lemnaceae) was used as a bioindicator for urban pollution of freshwater bonds.…”

Section: Description Of the Study Areamentioning

confidence: 99%

“…Many studies depending on organisms had been reported as regionally important tools in environmental programs e.g. fish in Australia, Asia and America (Edwards et al, 2001;Ueno et al, 2005;Carrasco-Letelier et al, 2006), land snails (Reogli et al, 2006;Radwan et al, 2010;Abdel-Halim et al, 2013), macroalgae (Fytianos et al, 1999;SanchezRodrignez et al, 2001;Conti and Cecchetti, 2003) and microalgae (Siripornadulsil et al, 2002;Nishikawa et al, 2003;Pinto et al, 2003;Tripathi et al, 2006). Moreover, biochemical responses of the organisms exposed to POP s , PAH s and pesticides have been reported for the last two decades and documented by the international organizations such as Economic Corporation and Development (OECD) and the United States Environmental Protection Agency (USEPA) which recommended to use algae because of their wide distribution and their sensitivity with respect to the environmental evaluation of freshwater ecosystems (Bauer et al, 2012).…”

Section: Ast and Altmentioning

confidence: 99%

Biomarkers of Freshwater Algae Lemna minor as a Model for Urban Pollution with Pesticides and Heavy Metals

2014

Alexandria Science Exchange Journal: An International Quarterly

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Oxidative stress on land snail Helix aspersa as a sentinel organism for ecotoxicological effects of urban pollution with heavy metals

Cited by 46 publications

References 34 publications

Bioaccumulation of heavy metals, lipid profiles, and antioxidant status of snails (Achatina achatina)around cement factory vicinities

Bioaccumulation of heavy metals, lipid profiles, and antioxidant status of snails (Achatina achatina)around cement factory vicinities

Oxidative stress, lipid metabolism, and neurotransmission in freshwater snail (Pomacea patula) exposed to a water-accommodated fraction of crude oil

Biomarkers of Freshwater Algae Lemna minor as a Model for Urban Pollution with Pesticides and Heavy Metals

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