TY - JOUR
A2 - Fröde, Tânia Silvia
AU - Lin, Gengbing
AU - Chen, Shuai
AU - Lei, Lang
AU - You, Xiaoqing
AU - Huang, Min
AU - Luo, Lan
AU - Li, Yanfen
AU - Zhao, Xin
AU - Yan, Fuhua
PY - 2015
DA - 2015/05/03
TI - Effects of Intravenous Injection of Porphyromonas gingivalis on Rabbit Inflammatory Immune Response and Atherosclerosis
SP - 364391
VL - 2015
AB - The effects of intravenous injection of Porphyromonas gingivalis (Pg) on rabbit inflammatory immune response and atherosclerosis were evaluated by establishing a microamount Pg bacteremia model combined with high-fat diet. Twenty-four New Zealand rabbits were randomly divided into Groups A-D n=6. After 14 weeks, levels of inflammatory factors (C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6), and monocyte chemoattractant protein-1 (MCP-1)) in peripheral blood were detected by ELISA. The aorta was subjected to HE staining. Local aortic expressions of toll-like receptor-2 (TLR-2), TLR-4, TNF-α, CRP, IL-6, matrix metallopeptidase-9, and MCP-1 were detected by real-time PCR, and those of nuclear factor-κB (NF-κB) p65, phospho-p38 mitogen-activated protein kinase (MAPK), and phospho-c-Jun N-terminal kinase (JNK) proteins were detected by Western blot. Intravenous injection of Pg to the bloodstream alone induced atherosclerotic changes and significantly increased systemic and local aortic expressions of inflammatory factors, NF-κB p65, phospho-p38-MAPK, and JNK, especially in Group D. Injection of microamount Pg induced inflammatory immune response and accelerated atherosclerosis, in which the NF-κB p65, p38-MAPK, and JNK signaling pathways played important roles. Intravenous injection of Pg is not the same as Pg from human periodontitis entering the blood stream. Therefore, our results cannot be extrapolated to human periodontitis.
SN - 0962-9351
UR - https://doi.org/10.1155/2015/364391
DO - 10.1155/2015/364391
JF - Mediators of Inflammation
PB - Hindawi Publishing Corporation
KW -
ER -