PMID- 23583017 OWN - NLM STAT- MEDLINE DCOM- 20140422 LR - 20151119 IS - 1879-1506 (Electronic) IS - 0003-9969 (Linking) VI - 58 IP - 9 DP - 2013 Sep TI - Experimental periodontitis promotes transient vascular inflammation and endothelial dysfunction. PG - 1187-98 LID - S0003-9969(13)00103-9 [pii] LID - 10.1016/j.archoralbio.2013.03.009 [doi] AB - OBJECTIVES: This study aimed to evaluate the systemic inflammatory response and cardiovascular changes induced by experimental periodontitis in rats. DESIGN: Experimental periodontitis was induced by placing a cotton ligature around the cervix of both sides of mandibular first molars and maxillary second molars in each male rat. Sham-operated rats had the ligature removed immediately after the procedure. Seven, 14 or 28 days after procedure, the effects of acetylcholine, sodium nitroprusside and phenylephrine were evaluated on blood pressure, aortic rings and isolated and perfused mesenteric bed. The blood was obtained for plasma Interleukin-6 (IL-6), C-reactive protein (CRP) and lipid evaluation. The mesenteric vessels were obtained to evaluate superoxide production and nitric oxide synthase 3 (NOS-3) expression. RESULTS: Ligature induced periodontitis reduced endothelium-dependent vasodilatation, a hallmark of endothelial dysfunction. This effect was associated with an increase in systemic inflammatory markers (IL-6 and CRP), worsens on lipid profile, increased vascular superoxide production and reduced NOS-3 expression. It is interesting to note that many of these effects were transitory. CONCLUSION: Periodontitis induced a transient systemic and vascular inflammation which leads to endothelial dysfunction, an initial step for cardiovascular diseases. Moreover, the animal model of periodontitis used here may represent a valuable tool for studying the relationship between periodontitis and endothelial dysfunction. CI - Copyright (c) 2013 Elsevier Ltd. All rights reserved. FAU - Brito, Lorena C W AU - Brito LC AD - Department of Pharmaceutical Sciences, Universidade Estadual de Ponta Grossa, PR, Brazil. FAU - DalBo, Silvia AU - DalBo S FAU - Striechen, Tatiane M AU - Striechen TM FAU - Farias, Jessica M AU - Farias JM FAU - Olchanheski, Luiz R Jr AU - Olchanheski LR Jr FAU - Mendes, Reila T AU - Mendes RT FAU - Vellosa, Jose C R AU - Vellosa JC FAU - Favero, Giovani M AU - Favero GM FAU - Sordi, Regina AU - Sordi R FAU - Assreuy, Jamil AU - Assreuy J FAU - Santos, Fabio A AU - Santos FA FAU - Fernandes, Daniel AU - Fernandes D LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20130411 PL - England TA - Arch Oral Biol JT - Archives of oral biology JID - 0116711 RN - 0 (Biomarkers) RN - 0 (Interleukin-6) RN - 11062-77-4 (Superoxides) RN - 169D1260KM (Nitroprusside) RN - 1WS297W6MV (Phenylephrine) RN - 9007-41-4 (C-Reactive Protein) RN - EC 1.14.13.39 (Nitric Oxide Synthase) RN - N9YNS0M02X (Acetylcholine) SB - IM MH - Acetylcholine/pharmacology MH - Alveolar Bone Loss/physiopathology MH - Analysis of Variance MH - Animals MH - Biomarkers/analysis MH - C-Reactive Protein/analysis MH - Endothelium/*drug effects/metabolism MH - Inflammation/*complications/metabolism/physiopathology MH - Interleukin-6/blood MH - Male MH - Mesenteric Arteries/*drug effects/physiopathology MH - Microscopy, Fluorescence MH - Nitric Oxide Synthase/analysis MH - Nitroprusside/pharmacology MH - Periodontitis/*etiology/metabolism MH - Phenylephrine/pharmacology MH - Rats MH - Rats, Wistar MH - Superoxides/analysis MH - Vasodilation/*drug effects OTO - NOTNLM OT - Cholesterol OT - Endothelial dysfunction OT - Inflammation OT - Nitric oxide OT - Periodontitis OT - Superoxide EDAT- 2013/04/16 06:00 MHDA- 2014/04/23 06:00 CRDT- 2013/04/16 06:00 PHST- 2012/10/30 00:00 [received] PHST- 2013/02/05 00:00 [revised] PHST- 2013/03/17 00:00 [accepted] PHST- 2013/04/16 06:00 [entrez] PHST- 2013/04/16 06:00 [pubmed] PHST- 2014/04/23 06:00 [medline] AID - S0003-9969(13)00103-9 [pii] AID - 10.1016/j.archoralbio.2013.03.009 [doi] PST - ppublish SO - Arch Oral Biol. 2013 Sep;58(9):1187-98. doi: 10.1016/j.archoralbio.2013.03.009. Epub 2013 Apr 11.