ArticleLipids2015
Phosphatidylethanolamine, but not Phosphatidylglycerol-Cardiolipin, Isolated from Two Species of Helicobacter Binds Cholesterol over Cholesteryl Ester.
Article in Lipids, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
Funding
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Abstract
This study demonstrated that the cells of Helicobacter felis and Helicobacter cinaedi spontaneously absorb cholesterol added to the medium. A recent study by our group has revealed that phosphatidylethanolamine (PtdEtn) of Helicobacter pylori contains myristic acid as the most predominant saturated fatty acid and that the PtdEtn of this bacterium binds cholesterol more selectively than cholesteryl ester. We, therefore, isolated the PtdEtn from the two Helicobacter species to analyze the hydrophobic interaction between cholesterol and its glycerophospholipid. PtdEtn of the Helicobacter bacteria interacted more selectively with cholesterol than with cholesteryl ester, and the degree of the selective binding of cholesterol was higher in the PtdEtn than in the phosphatidylglycerol-cardiolipin of the same bacteria. These results suggest the possibility that the cells of H. felis and H. cinaedi may contain abundant PtdEtn with myristic acid. On this basis, we analyzed the PtdEtn molecular species of the Helicobacter bacteria and demonstrated that the PtdEtn containing myristic acid accounts for more than 35% in the total PtdEtn. These results suggest that the myristoyl PtdEtn takes part in the absorption of cholesterol in H. felis and H. cinaedi.
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