3280 Mycobacterium bovis Bacille-Calmette-Guérin infection aggravates atherosclerosis

Autor: Moises Huaman, Joseph E. Qualls, David Kuhel, Shinsmon Jose, Eddy Konaniah, Ravi Komaravolu, Carl J. Fichtenbaum, George S. Deepe, David Y. Hui
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Journal of Clinical and Translational Science, Vol 3, Pp 110-110 (2019)
Druh dokumentu: article
ISSN: 2059-8661
DOI: 10.1017/cts.2019.251
Popis: OBJECTIVES/SPECIFIC AIMS: The study aimed at assessing whether M. bovis BCG infection and inflammation exacerbates the development of atherosclerosis in Ldlr-/- mice. METHODS/STUDY POPULATION: Twelve-week old male Ldlr-/- mice (n=10) were infected with M. bovis BCG (0.3–3.0x10^6 colony-forming units (CFUs)) via the intranasal route, to simulate a natural respiratory route of infection. Mice were subsequently fed a western-type diet (WD) containing 21% fat and 0.2% cholesterol for 16 weeks. Age-matched uninfected Ldlr-/- mice (n=10) fed with an identical WD served as controls. Mice were euthanized after 16 weeks of WD to examine atherosclerotic lesions in aortic root sections and en face aorta using Oil Red O staining. Plasma cholesterol and triglyceride levels were measured by enzymatic assays and lipoprotein distribution was assessed using fast protein liquid chromatography. Because of the important role of T cells and monocytes in atherosclerosis development, we assessed these cell subsets in blood using flow cytometry at 8 and 16 weeks. Experiments were conducted in duplicate. We used unpaired Student’s t-test for group comparisons of numeric variables and flow cytometry data. RESULTS/ANTICIPATED RESULTS: M. bovis BCG infection significantly increased atherosclerotic lesions in en face aorta (plaque size per aorta area ratio; 0.15±0.13 vs. 0.06±0.02; P
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