title: Atherogenic lipoprotein parameters in patients with aggressive periodontitis.
abstract: OBJECTIVE
  Certain types of chronic infection increase the plasma level of very-low-density lipoprotein, leading to formation of the particularly atherogenic low-density lipoprotein subclass, small dense low-density lipoprotein. In the present study, we examined whether aggressive forms of periodontitis are associated with these atherogenic lipoprotein parameters.
  
  
  METHODS
  Twelve healthy control subjects without periodontitis, 12 subjects with localized aggressive periodontitis and 12 subjects with generalized aggressive periodontitis were studied. Lipoprotein subclass levels were determined using nuclear magnetic resonance methodology.
  
  
  RESULTS
  Healthy control subjects, localized aggressive periodontitis subjects and generalized aggressive periodontitis subjects had progressively higher plasma levels of very-low-density lipoprotein and progressively smaller average low-density lipoprotein size (p < 0.05, one-way analysis of variance). In pairwise comparisons, differences were only significant between healthy controls and generalized aggressive periodontitis subjects (p < 0.05, Tukey's post test). After adjustment for body mass index, the mean periodontal pocket depth correlated positively with plasma very-low-density lipoprotein levels (p = 0.047). Very-low-density lipoprotein concentrations correlated positively with small dense low-density lipoprotein levels and negatively with average low-density lipoprotein size. Prevalence of the atherogenic lipoprotein pattern-B in healthy controls, localized aggressive periodontitis subjects and generalized aggressive periodontitis subjects was 8.3%, 33.3% and 66.6%, respectively.
  
  
  CONCLUSIONS
  These results indicate that periodontal infection is associated with elevated plasma levels of atherogenic lipoprotein species. This association may account for the increased risk of periodontitis patients for cardiovascular disease.
authors.affiliation: Department of Biochemistry, Virginia Commonwealth University, Medical College of Virginia Campus, Richmond, VA 23298, USA.
authors.forename: M L
authors.initials: ML
authors.lastname: Rufail
authors.forename: H A
authors.initials: HA
authors.lastname: Schenkein
authors.forename: T E
authors.initials: TE
authors.lastname: Koertge
authors.forename: A M
authors.initials: AM
authors.lastname: Best
authors.forename: S E
authors.initials: SE
authors.lastname: Barbour
authors.forename: J G
authors.initials: JG
authors.lastname: Tew
authors.forename: R
authors.initials: R
authors.lastname: van Antwerpen
mesh_terms: D000208:Acute Disease; D000328:Adult; D000704:Analysis of Variance; D050197:Atherosclerosis / Q000097:blood* / Q000150:complications; D016022:Case-Control Studies; D005260:Female; D006801:Humans; D008079:Lipoproteins, VLDL / Q000097:blood*; D008297:Male; D017622:Periodontal Attachment Loss / Q000097:blood; D010518:Periodontitis / Q000097:blood* / Q000150:complications; D012044:Regression Analysis
chemical_list: D008079:Lipoproteins, VLDL