Dental Journal (Majalah Kedokteran Gigi)
ISSN 1978-3728
Vol. 45 / No. 3 / Published : 2012-09
Order : 5, and page :144 - 149
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Original Article :
Maternal endotoxin-induced fetal growth restriction in rats: fetal responses in toll-like receptor
Author :
- Banun Kusumawardani *1
- Marsetyawan HNE. Soesatyo*2
- Djaswadi Dasuki*3
- Widya Asmara*4
- Departement of Biomedical, Faculty of Dentistry, Universitas Jember , Jember-Indonesia
- Departement of Biomedical, Faculty of Dentistry, Universitas Jember , Jember-Indonesia
- Departement of Biomedical, Faculty of Dentistry, Universitas Jember , Jember-Indonesia
- Departement of Biomedical, Faculty of Dentistry, Universitas Jember , Jember-Indonesia
Abstract :
Background: Porphyromonas gingivalis as a major etiology of periodontal disease can produce virulence factor, lipopolysaccharide/LPS,which is expected to play a role in the intrauterine fetal growth. Trophoblast at the maternal-fetal interface actively participates in response toinfection through the expression of a family of natural immune receptors, toll-like receptor (TLR). Purpose: the aims of study were to identifyendotoxin concentration in maternal blood serum of Porphyromonas gingivalis-infected pregnant rats, to characterize the TLR-4 expressionin trophoblast cells, and to determine its effect on fetal growth. Methods: Female rats were infected with live-Porphyromonas gingivalis atconcentration of 2 x 109 cells/ml into subgingival sulcus area of the maxillary first molar before and/or during pregnancy. They were sacrifiedon 14th and 20th gestational day. Fetuses were evaluated for weight and length. Endotoxin was detected by limulus amebocyte lysate assayin the maternal blood serum. The TLR-4 expression in trophoblast cells was detected by immunohistochemistry. Results: The mean of LPSconcentrations in maternal blood serum was significantly different (p<0.05) among the four maternal periodontal infection groups. The TLR-4 expressions in syncytiotrophoblast, spongiotrophoblast and trophoblastic giant cells from Porphyromonas gingivalis-infected periodontalmaternal groups were significantly higher than the control group (p<0.05). Maternal endotoxemia affected (p<0.05) the fetal weight andfetal length. Conclusion: The increased LPS concentration in maternal blood serum resulted in the decreased fetal weight and fetal length.Syncytiotrophoblast, spongiotrophoblast and trophoblastic giant cell were able to recognize Porphyromonas gingivalis LPS through theTLR-4 expression. This findings strengthened the link between periodontal disease and fetal growth restriction.
Keyword :
Porphyromonas gingivalis, periodontitis, endotoxin, pregnancy, fetal growth restriction,
References :
Socransky SS,(2005) Periodontal microbial ecology - : Periodontol 2000
Archive Article
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Volume : 45 / No. : 3 / Pub. : 2012-09 |
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