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Toxicology. 2016 Mar 10;347-349:6-16. doi: 10.1016/j.tox.2016.02.007. Epub 2016 Feb 27.

Altered heart proteome in fructose-fed Fisher 344 rats exposed to bisphenol A.

Author information

1
Occupational and Environmental Medicine Center, and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. Electronic address: Stefan.ljunggren@liu.se.
2
Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. Electronic address: Madeleine.iggland@liu.se.
3
Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden. Electronic address: Monika.ronn@medsci.uu.se.
4
Department of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Uppsala, Sweden. Electronic address: Lars.lind@medsci.uu.se.
5
Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Uppsala, Sweden. Electronic address: Monica.lind@medsci.uu.se.
6
Occupational and Environmental Medicine Center, and Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden. Electronic address: helen.m.karlsson@liu.se.

Abstract

Bisphenol A (BPA), is an artificial estrogen initially produced for medical purposes but is today widely used in polycarbonate plastics and epoxy resins. Exposure-related reproductive disorders have been found, but recently it has also been suggested that BPA may be involved in obesity, diabetes, myocardial hypertrophy and myocardial infarction in humans. To mimic a modern lifestyle, female rats were fed with fructose or fructose plus BPA (0.25mg/L drinking water). The myocardial left ventricle proteome of water controls, fructose-fed and fructose-fed plus BPA supplemented rats was explored. The proteome was investigated using nano-liquid chromatography tandem mass spectrometry and two-dimensional gel electrophoresis followed by matrix assisted laser desorption/ionization mass spectrometry identification. In total, 41 proteins were significantly altered by BPA exposure compared to water or fructose controls. Principal component analysis and cellular process enrichment analysis of altered proteins suggested increased fatty acid transport and oxidation, increased ROS generation and altered structural integrity of the myocardial left ventricle in the fructose-fed BPA-exposed rats, indicating unfavorable effects on the myocardium. In conclusion, BPA exposure in the rats induces major alterations in the myocardial proteome.

KEYWORDS:

Bisphenol A; Endocrine disrupting chemicals; Fructose; Heart tissue; Proteomics

PMID:
26930160
DOI:
10.1016/j.tox.2016.02.007
[Indexed for MEDLINE]

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