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Handb Exp Pharmacol. 2015;224:207-28. doi: 10.1007/978-3-319-09665-0_5.

Functionality of HDL: antioxidation and detoxifying effects.

Author information

1
Occupational and Environmental Medicine, Heart Medical Centre, County Council of Ostergotland, Linkoping University, SE-58185, Linkoping, Sweden, helen.m.karlsson@liu.se.

Abstract

High-density lipoproteins (HDL) are complexes of multiple talents, some of which have only recently been recognised but all of which are under active investigation. Clinical interest initially arose from their amply demonstrated role in atherosclerotic disease with their consequent designation as a major cardiovascular disease (CVD) risk factor. However, interest is no longer confined to vascular tissues, with the reports of impacts of the lipoprotein on pancreatic, renal and nervous tissues, amongst other possible targets. The ever-widening scope of HDL talents also encompasses environmental hazards, including infectious agents and environmental toxins. In almost all cases, HDL would appear to have a beneficial impact on health. It raises the intriguing question of whether these various talents emanate from a basic ancestral function to protect the cell.The following chapter will illustrate and review our current understanding of some of the functions attributed to HDL. The first section will look at the antioxidative functions of HDL and possible mechanisms that are involved. The second section will focus specifically on paraoxonase-1 (PON1), which appears to bridge the divide between the two HDL functions discussed herein. This will lead into the final section dealing with HDL as a detoxifying agent protecting against exposure to environmental pathogens and other toxins.

PMID:
25522989
DOI:
10.1007/978-3-319-09665-0_5
[Indexed for MEDLINE]

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