Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol
The mussel Aulacomya ater was exposed to 17β-estradiol (E2) (0, 1, 100 µg L-1) for 21 days with 4 sampling periods to evaluate how these organisms deal with exogenous estrogenic compounds. In addition, 2 concentrations of 17β-estradiol (0.5, 1 mmol) were injected into the abductor...
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Universidad de Valparaíso. Facultad de Ciencias del Mar
2012
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oai:scielo:S0718-195720120003000062013-03-26Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiolSaavedra,LuisaLeonardi,MaritzaMorin,VioletaQuiñones,Renato A Endocrine disruption estrogens Alkali-labile phosphate assay bivalves The mussel Aulacomya ater was exposed to 17β-estradiol (E2) (0, 1, 100 µg L-1) for 21 days with 4 sampling periods to evaluate how these organisms deal with exogenous estrogenic compounds. In addition, 2 concentrations of 17β-estradiol (0.5, 1 mmol) were injected into the abductor muscle of 5 individuals. The effects of E2 were determined by measuring the vitellogenin (Vg) levels with an alkaline labile phosphate (ALP) assay for gonads and using histological analyses. The results show an increment in ALP levels for males exposed to the lowest E2 levels, principally during the first 4 days of exposure, indicating that the response of Vg to E2 is time-dependent. Some differences were observed between the reproductive parameters (gonadosomatic index and maturity) of males and females exposed and unexposed to E2. Clear differences were also found in ALP levels between sexes, with the highest value occurring in male gonads. No response in Vg levels was detected in females after exposure to E2. Our results suggest that the reproductive cycle A. ater may be altered by E2 exposure, which is relevant considering recent reports of high levels of E2 in the sediments off south-central Chile.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.47 n.3 20122012-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572012000300006en10.4067/S0718-19572012000300006 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Endocrine disruption estrogens Alkali-labile phosphate assay bivalves |
| spellingShingle |
Endocrine disruption estrogens Alkali-labile phosphate assay bivalves Saavedra,Luisa Leonardi,Maritza Morin,Violeta Quiñones,Renato A Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol |
| description |
The mussel Aulacomya ater was exposed to 17β-estradiol (E2) (0, 1, 100 µg L-1) for 21 days with 4 sampling periods to evaluate how these organisms deal with exogenous estrogenic compounds. In addition, 2 concentrations of 17β-estradiol (0.5, 1 mmol) were injected into the abductor muscle of 5 individuals. The effects of E2 were determined by measuring the vitellogenin (Vg) levels with an alkaline labile phosphate (ALP) assay for gonads and using histological analyses. The results show an increment in ALP levels for males exposed to the lowest E2 levels, principally during the first 4 days of exposure, indicating that the response of Vg to E2 is time-dependent. Some differences were observed between the reproductive parameters (gonadosomatic index and maturity) of males and females exposed and unexposed to E2. Clear differences were also found in ALP levels between sexes, with the highest value occurring in male gonads. No response in Vg levels was detected in females after exposure to E2. Our results suggest that the reproductive cycle A. ater may be altered by E2 exposure, which is relevant considering recent reports of high levels of E2 in the sediments off south-central Chile. |
| author |
Saavedra,Luisa Leonardi,Maritza Morin,Violeta Quiñones,Renato A |
| author_facet |
Saavedra,Luisa Leonardi,Maritza Morin,Violeta Quiñones,Renato A |
| author_sort |
Saavedra,Luisa |
| title |
Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol |
| title_short |
Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol |
| title_full |
Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol |
| title_fullStr |
Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol |
| title_full_unstemmed |
Induction of vitellogenin-like lipoproteins in the mussel Aulacomya ater under exposure to 17β-estradiol |
| title_sort |
induction of vitellogenin-like lipoproteins in the mussel aulacomya ater under exposure to 17β-estradiol |
| publisher |
Universidad de Valparaíso. Facultad de Ciencias del Mar |
| publishDate |
2012 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572012000300006 |
| work_keys_str_mv |
AT saavedraluisa inductionofvitellogeninlikelipoproteinsinthemusselaulacomyaaterunderexposureto17946estradiol AT leonardimaritza inductionofvitellogeninlikelipoproteinsinthemusselaulacomyaaterunderexposureto17946estradiol AT morinvioleta inductionofvitellogeninlikelipoproteinsinthemusselaulacomyaaterunderexposureto17946estradiol AT quinonesrenatoa inductionofvitellogeninlikelipoproteinsinthemusselaulacomyaaterunderexposureto17946estradiol |
| _version_ |
1714202321008721920 |