Establishment and analysis of chronic periodontitis and atherosclerosis model in Wistar rat / 中华口腔医学杂志
Chinese Journal of Stomatology
;
(12): 464-468, 2009.
Article
Dans Chinois
| WPRIM
| ID: wpr-274550
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the possible correlation between atherosclerosis and chronic periodontitis by establishing an animal model of chronic periodontitis and atherosclerosis in Wistar rat.</p><p><b>METHODS</b>Sixty male Wistar rats were divided into four groups A (control group), B (chronic periodontitis group), C (atherosclerosis group), D (chronic periodontitis accompany with atherosclerosis group). Every group was accepted the corresponding treatment. Animals were sacrificed after 12 weeks. The periodontal index, levels of serum total cholesterol (TC) and low-density lipoprotein (LDL), the concentration of TNF-alpha and matrix metalloproteinase (MMP-3) were examined. The severity of chronic periodontitis and atherosclerosis was quantified by histopathology. The date were statistically analyzed.</p><p><b>RESULTS</b>Through detection of periodontal tissue of experimental teeth, serum and histopathology, animal models were successful. Histopathologic observation revealedobvious inflammation of periodontal tissue was observed in group B and D. Attachment loss level in group B [(137.86 +/- 28.39) microm] and D [(162.36 +/- 22.69) microm] was higher than that in group A [(4.26 +/- 1.07) microm] and C [(68.07 +/- 18.25) microm] (P < 0.05), and that in group C was higher than group A (P < 0.05). Atherosclerotic lesions of abdominal aorta were formed in group C and D. The level of TC, LDL in group C and D was higher than that in group A and B (P < 0.05), and that in group D was higher than group C (P < 0.05). Animals in group B and D showed higher level of TNF-alpha, MMP-3 in serum than that in group A and C (P < 0.05). There was no correlation between the level of MMP-3 and TC (P = 0.971) or LDL (P = 0.604).</p><p><b>CONCLUSIONS</b>Chronic periodontitis may be a risk factor and contribute to the pathogenesis of atherosclerosis. MMP-3 may be an independent risk factor of atherosclerosis exclude TC and LDL.</p>
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Aorte abdominale
/
Maladies de l'aorte
/
Anatomopathologie
/
Sang
/
Médicaments issus de plantes chinoises
/
Indice parodontal
/
Cholestérol
/
Facteur de nécrose tumorale alpha
/
Rat Wistar
/
Matrix metalloproteinase 3
Type d'étude:
Étude pronostique
Limites du sujet:
Animaux
langue:
Chinois
Texte intégral:
Chinese Journal of Stomatology
Année:
2009
Type:
Article
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