title: Periodontal treatment decreases plasma oxidized LDL level and oxidative stress.
abstract: Periodontitis induces excessive production of reactive oxygen species in periodontal lesions. This may impair circulating pro-oxidant/anti-oxidant balance and induce the oxidation of low-density lipoprotein (LDL) in blood. The purpose of this study was to monitor circulating oxidized LDL and oxidative stress in subjects with chronic periodontitis following non-surgical periodontal treatment. Plasma levels of oxidized LDL and oxidative stress in 22 otherwise healthy non-smokers with chronic periodontitis (mean age 44.0 years) were measured at baseline and at 1 and 2 months after non-surgical periodontal treatment. At baseline, chronic periodontitis patients had higher plasma levels of oxidized LDL and oxidative stress than healthy subjects (p < 0.001). Periodontal treatment was associated with a significant reduction in plasma levels of oxidized LDL (oxLDL)(p < 0.001) and oxidative stress (p < 0.001). At 2 months after periodontal treatment, the degree of change in the oxLDL was positively correlated with that in the oxidative stress (r = 0.593, p = 0.004). These observations indicate that periodontitis patients showed higher levels of circulating oxLDL and oxidative stress than healthy subjects. In addition, improved oral hygiene and non-surgical periodontal treatment were effective in decreasing oxLDL, which was positively associated with a reduction in circulating oxidative stress.
authors: Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
authors: Naofumi
authors: N
authors: Tamaki
authors: Takaaki
authors: T
authors: Tomofuji
authors: Daisuke
authors: D
authors: Ekuni
authors: Reiko
authors: R
authors: Yamanaka
authors: Manabu
authors: M
authors: Morita
mesh_terms: D000328:Adult; D000975:Antioxidants / Q000032:analysis; D002097:C-Reactive Protein / Q000032:analysis; D016022:Case-Control Studies; D055113:Chronic Periodontitis / Q000628:therapy*; D003774:Dental Plaque Index; D012534:Dental Scaling / Q000379:methods; D005260:Female; D005500:Follow-Up Studies; D005884:Gingival Hemorrhage / Q000628:therapy; D006801:Humans; D008077:Lipoproteins, LDL / Q000097:blood*; D008297:Male; D008875:Middle Aged; D009910:Oral Hygiene; D010084:Oxidation-Reduction; D018384:Oxidative Stress / Q000502:physiology*; D010353:Patient Education as Topic; D017622:Periodontal Attachment Loss / Q000628:therapy; D010514:Periodontal Pocket / Q000628:therapy; D017382:Reactive Oxygen Species / Q000097:blood; D016745:Root Planing / Q000379:methods
chemical_list: D000975:Antioxidants; D008077:Lipoproteins, LDL; D017382:Reactive Oxygen Species; C099252:oxidized low density lipoprotein; D002097:C-Reactive Protein