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Expression and localization of vitellogenin genes(VTG)and receptor(VGR)in the gonad development of silver pomfret pampus argenteus

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Journal of Oceanology and Limnology 2023年第4期41卷 1575-1592页

作者： Zitao XIONG Jiazhe YANG Shun ZHANG Yajun WANG Shanliang XU Chunyang GUO Danli WANG School of Marine Sciences Ningbo UniversityNingbo 315211China Key Laboratory of Applied Marine Biotechnology Ningbo UniversityChinese Ministry of EducationNingbo 315211China

Vitellogenesis is the main event of oocyte growth in oviparous animals,which is mainly manifested by the accumulation of vitellogenin(VTG).The accumulation of vitellogenin depends mainly on the absorption of exogenous vitellogenin,which enters oocyte through endocytosis mediated by its receptor(VGR).We investigated the expression and localization of VTG and VGR during gonad development of pampus *** qPCR results show that vtgs were not expressed in male fish,but in the ovary and liver of female fish;the expression levels went up at first and then *** expression levels of vgr in the testis were low and only 1%-3%of that in *** results show that during the ovarian development of ***,VTG in liver,serum,and ovary all showed a trend from increasing to ***,VTG in liver peaked in StageⅣ,and in serum and ovary peaked in Stage V,reflecting changes in the characteristics of VTG in the liver(synthesis),blood(transport),and ovaries(accumulation).During gonad development,VGR in the ovaries first increased and then decreased,reaching a peak in Stage V,in contrast to vgr mRNA *** VGR content in the testis was extremely low and stable,consistent with vgr *** results show that the location and intensity of VTG and VGR positive signals were synchronized with the changes of their protein content,which revealed that VTG was mainly synthesized in the liver cytoplasm,secreted into the blood,and transported to ovary in StageⅢ.VGR is highly expressed in oocytes in StageⅡ.In StageⅢ,a large amount of VTG reaches the ovary,when VGR begins to translate and is subsequently transported to the plasma membrane of the ***,the positive signal of VGR was stronger near the plasma membrane of oocytes in StagesⅠandⅡ.By using qPCR,ELISA,and immunohistochemistry,the synthesis,transport,and accumulation of vitellogenin were elucidated and the mechanism of its endocytosis on egg membrane mediated by VTG during the de

关键词： pampus argenteus vitellogenin(VTG) vitellogenin receptor(VGR) vitellogenesis

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The concentration and probabilistic risk assessment of potentially toxic elements in fillets of silver pomfret(pampus argenteus):A global systematic review and meta-analysis

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Journal of Environmental Sciences 2021年第2期33卷 167-180页

作者： Mohammadreza Alipour Mansour Sarafraz Hossein Chavoshi Abotaleb Bay Amene Nematollahi Mohsen Sadani Yadolah Fakhri Yasser Vasseghian Amin Mousavi Khaneghah Student Research Committee School of Public Health and SafetyShahid Beheshti University of Medical SciencesTehran***Iran Department of Anatomy Shahid Beheshti University of Medical SciencesTehran***Iran Enuvironmental Health Research Center Golestan University of Medical SciencesGolestan***Iran Department of Food Safety and Hygiene School of HealthFasa University of Medical SciencesFasa***Iran Department of Environmental Health Engineering School of Public Health and SafetyShahid Beheshti Universityof Medical SciencesTehran***Iran Food Health Research Center Hormozgan University of Medical SciencesBandar Abbas***Iran Institute of Research and Development Duy Tan UniversityDa Nang 550000Vietnam Department of Food Science Faculty of Food Engineering University of Campinas(Unicamp)Rua Monteiro Lobato80 Caixa 6121 CampinasSao Paulo13083-862Brazil

The contamination of fish type products such as silver pomfret fish fillets by potentially toxic elements(PTEs)has raised global health *** studies regarding the concentration of PTEs in fillets of silver pomfret fish were retrieved among some international databases such as Scopus,Pub Med and Embase between 1 January 1983 and 10 March *** pooled(mean)concentration of PTEs in fillets of silver pomfret fish was meta-analyzed with the aid of a random-effect model(REM).Also,the non-carcinogenic risk was estimated via calculating the 95 th percentile of the total target hazard quotient(TTHQ).The meta-analysis of 21 articles(containing 25 studies or data reports)indicated that the ranking of PTEs in fillets of silver pomfret fish was Fe(11,414.81μg/kg wet weight,ww)>Zn(6055.72μg/kg ww)>Cr(1825.79μg/kg ww)>Pb(1486.44μg/kg ww)>Se(1053.47μg/kg ww)>Cd(992.50μg/kg ww)>Ni(745.23μg/kg ww)>Cu(669.71μg/kg ww)>total As(408.24μg/kg ww)>Co(87.03μg/kg ww)>methyl Hg(46.58μg/kg ww).The rank order of health risk assessment by country based on the TTHQ for adult consumers was Malaysia(2.500)>Bangladesh(0.886)>Iran(0.144)>China(0.045)>Pakistan(0.020)>India(0.015),while the corresponding values for child consumers was Malaysia(11.790)>Bangladesh(4.146)>Iran(0.675)>China(0.206)>Pakistan(0.096)>India(0.077).The adult consumers in Malaysia and children in Malaysia and Bangladesh were at considerable non-carcinogenic ***,following the recommended control plans in order to reduce the health risk associated with the ingestion of PTEs via consumption of silver pomfret fish fillets is crucial.

关键词： Potentially toxic elements Heavy metals Silver pomfret pampus argenteus Marine foods Health risk assessment

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