Immunological responses, histopathological finding and disease resistance of blue mussel (Mytilus edulis) exposed to treated and untreated municipal wastewater

Akaishi, F.M.; St-Jean, S. D.; Bishay, Farida; Clarke, John P.; Rabitto, Inês da Silva; Ribeiro, Ciro Alberto de Oliveira

doi:10.1016/j.aquatox.2007.01.008

Cited by 70 publications

(52 citation statements)

References 47 publications

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“…This finding is possibly supported by the effects of pollution exposure on mussel, where a decrease in THC corresponds with cytolysis in lysosome-rich cells, such as hemocytes (McCormick-Ray, 1987). The result of low THC of mussels exposed to acidification and nano-TiO 2 indicates a depressed immunological response, and it is unlikely for mussels to be capable of responding efficiently against pathogens and/or chemical substances (Akaishi et al, 2007).…”

Section: Discussionmentioning

confidence: 88%

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Hemocyte responses of the thick shell mussel Mytilus coruscus exposed to nano-TiO 2 and seawater acidification

et al. 2016

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Section: Discussionmentioning

confidence: 88%

“…We speculated that high ROS production may be a way to compensate for the lower number of hemocytes in our study. Akaishi et al (2007) pointed out that high ROS content under stress conditions is a mechanism to implement compensating actions for the lower phagocytic activity. The pH effect on ROS was also the same.…”

Section: Discussionmentioning

confidence: 98%

Hemocyte responses of the thick shell mussel Mytilus coruscus exposed to nano-TiO 2 and seawater acidification

et al. 2016

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“…The estuaries are under high influence of urban, industrial, harbor and agricultural activities (LIVINGSTONE, 1993(LIVINGSTONE, , 1998OLIVEIRA RIBEIRO et al, 2005;VALDEZ DOMINGOS et al, 2007;AKAISHI et al, 2007). Furthermore, organisms are exposed to a complex mixture of contaminants as toxic metals, organoclorides compounds, polycyclic aromatic hydrocarbons (PAHs) and sewage, and due to the dynamics of hydrographical and geomorphological conditions the bioavailability can increase.…”

Section: Introductionmentioning

confidence: 99%

Liver damages and nuclear abnormalities in erythrocytes of Atherinella brasiliensis (Actynopterigii, Atherinopsidade) from two beaches in Southeast of Brazil

et al. 2011

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A B S T R A C TThere are few environmental studies using biomarkers for the species Atherinella brasiliensis in Brazil. In the present work, the presence of hepatic histopathological lesions and nuclear abnormalities in erythrocytes were investigated in A. brasiliensis from Lamberto, a beach under influence of domestic wastes and marine activities. For comparison, fish were also sampled in Puruba, a non-polluted beach, located in the northeastern of São Paulo State. The frequency of lesions found in liver was in higher numbers in individuals from Lamberto than Puruba beach. The most critical injuries observed in A. brasiliensis were the presence of necrotic areas, leucocytes infiltration and piknotic nucleus. A high occurrence of cells with vacuolization was also observed. The hepatic lesion index of the fish from Lamberto beach showed significant high values (Iorg=13) when compared with fish from Puruba beach (Iorg=7) suggesting the influence of the several human activities in the studied site. Notched and blebed nucleous were observed in this study, and significant differences were found between the studied sites. However, these differences did not reflect the total nuclear alterations. RESUMOExistem poucos estudos no Brasil usando biomarcadores em Atherinella brasiliensis. No presente trabalho foram investigadas a presença de lesões histopatológicas hepáticas e as alterações nucleares em eritrócitos de A. brasiliensis amostrados na praia do Lamberto, local submetido à influência de resíduos domésticos e atividades humanas. Para comparação, indivíduos da espécie foram também amostrados na praia de Puruba, local não impactado, localizado no noroeste do estado de São Paulo. Peixes provenientes da praia do Lamberto apresentaram lesões hepáticas em número maior do que aqueles da praia de Puruba. Áreas necróticas, infiltração de leucócitos e núcleos picnóticos foram os danos de maior importância observados em A. brasiliensis, apesar de uma elevada ocorrência de vacuolização também ter sido verificada. O índice de lesão hepática dos peixes da praia do Lamberto mostrou valores significantemente maiores (Iorg=13) quando comparados com o dos peixes da praia de Puruba (Iorg=7), sugerindo influência das diversas atividades humanas existentes na área avaliada. Em relação aos núcleos "notched" e "blebed", foram observadas diferenças significativas entre as áreas, mas não para as alterações nucleares totais.

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“…Estuaries, in particular, are affected by urban, industrial, harbor and sometimes agricultural discharges (OLIVEIRA RIBEIRO et al, 2005;VALDEZ DOMINGOS et al, 2007;AKAISHI et al, 2007). In aquatic ecosystems, contaminants bioaccumulation represent a potential risk to the biota and consequently to human health (HELLOU et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Evidence of contamination by oil and oil products in the Santos-São Vicente estuary, São Paulo, Brazil

Azevedo¹,

Lopes

Katsumiti

et al. 2012

Braz. j. oceanogr.

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A B S T R A C TDifferent components of the mixed function oxidase (MFO) system and the levels of fluorescent aromatic compounds in bile (FACs) were measured in Cathorops spixii in order to assess the impact of polycyclic aromatic hydrocarbons (PAHs). Fish were sampled in an estuary (Santos/São Vicente) with a history of contamination by PAHs, mainly due to the presence of the industrial complex of Cubatão city and of another of low anthropogenic influence (Cananéia) on the Brazilian coast. FACs were higher in fish from the polluted site, and the PAH 5 and 6-ring metabolites were the most frequent -with 14% and 15%, respectively. Levels of the different components of the MFO system showed the same variation profile as the FACs for both estuaries. Therefore, the values found for somatic indexes and biomarkers with data of bile PAH metabolites indicate the presence of organic contaminants, especially in the area subject to the influence of the industrial complex on the Santos/São Vicente estuary. R E S U M ODiferentes componentes do sistema oxidase de função mista (MFO) e os níveis de compostos aromáticos fluorescentes em bile (FACS) foram determinados em Cathorops spixii a fim de avaliar o impacto de hidrocarbonetos policíclicos aromáticos (PAHs). Os peixes foram coletados em um estuário com histórico de contaminação por PAHs (Santos/São Vicente), devido principalmente a presença do complexo industrial na cidade de Cubatão e em outro com baixa influência antropogênica (Cananéia) na costa brasileira. FACs foram maiores nos peixes oriundos da área contaminada, sendo os metabolitos de HPAs com 5 e 6 anéis, os mais representativos com 14% e 15%, respectivamente. Os níveis dos diferentes componentes do sistema MFO mostraram o mesmo perfil de variação que os FACs em ambos os estuários. Portanto, os valores encontrados para os índices somáticos e os biomarcadores considerados, em associação com os dados de metabólitos biliares de PAHs, indicam a presença de contaminantes orgânicos, principalmente na área sob influência do complexo industrial no estuário de Santos/São Vicente.

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Immunological responses, histopathological finding and disease resistance of blue mussel (Mytilus edulis) exposed to treated and untreated municipal wastewater

Cited by 70 publications

References 47 publications

Hemocyte responses of the thick shell mussel Mytilus coruscus exposed to nano-TiO 2 and seawater acidification

Hemocyte responses of the thick shell mussel Mytilus coruscus exposed to nano-TiO 2 and seawater acidification

Liver damages and nuclear abnormalities in erythrocytes of Atherinella brasiliensis (Actynopterigii, Atherinopsidade) from two beaches in Southeast of Brazil

Evidence of contamination by oil and oil products in the Santos-São Vicente estuary, São Paulo, Brazil

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