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Better understanding the mechanisms of L. extract (LCE) activity is necessary to prepare recommendations for the use of LCE-based herbal products for preventive/supportive purposes in case of infective endocarditis (IE) and other staphylococcal invasive infections. The aim of the study was to analyze molecular mechanisms of LCE effect on and blood platelets in the context of their interactions playing a pivotal role in such disorders. Using atomic force microscopy, we demonstrated that adhesion forces of were markedly reduced after exposure to LCE at subinhibitory concentrations. The effect resulted from the impact of LCE on cell morphology and the composition of phospholipids and fatty acids in bacterial membranes (assessed by HPLC), which modulated their stabilization, hydrophobicity, and charge. Moreover, using FACS we showed also that LCE significantly reduced GP IIb/IIIa expression on blood platelets, thus the disruption of platelet-fibrinogen interactions seems to explain antiplatelet effect of LCE. The obtained results prove the usefulness of LCE in the prevention of adhesion, platelet activation, and vegetations development, however, also pointed out the necessity of excluding the cationic antibiotics from the treatment of -associated IE and other invasive diseases, when motherwort herb is used simultaneously as an addition to the daily diet.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6767068 | PMC |
| http://dx.doi.org/10.3390/molecules24183318 | DOI Listing |
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