https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 Exposure to estrogenic mixtures results in tissue-specific alterations to the metabolome of oysters https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48379 Saccostrea glomerata. Oysters were exposed to a “low” and a “high” mixture of (xeno) estrogens (representative of Australian and global receiving waters respectively) for 7 days and digestive gland, gill, and gonad tissue were sampled for quantification of polar metabolites by 1H NMR spectroscopy. Exposure to both mixtures lowered body mass and altered the metabolite profile in the digestive glands. Comparatively, gills, and ovaries demonstrated lesser sensitivity to the mixtures, with significant metabolomic alterations observed only for the high mixture. The male gonad did not respond to either estrogenic exposure. In the responsive tissues, major metabolites including amino acids, carbohydrates, intermediates of the tricarboxylic acid cycle and ATP were all down-regulated and exhibited tissue-specific patterns of down-regulation with the greatest proportion of metabolites down-regulated due to estrogenic exposure in the digestive gland. Exposure to (xeno) estrogen mixtures representative of concentrations reported in receiving waters in Australia and globally can impact the metabolome and associated energy metabolism, especially in the digestive gland, translating to lower pools of available ATP energy for potential cellular homeostasis, somatic maintenance and growth, reproduction and fitness.]]> Wed 15 Mar 2023 14:50:37 AEDT ]]> Hemolymph chemistry and histopathological changes in pacific oysters (crassostrea gigas) in response to low salinity stress https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:19136 Sat 24 Mar 2018 07:55:55 AEDT ]]>