Sökning: id:"swepub:oai:DiVA.org:oru-28541" >
The role of peridon...
The role of peridontitis and hepatocyte growth factor in systemic inflammation
-
- Lönn, Johanna, 1982- (författare)
- Örebro universitet,Institutionen för hälsovetenskap och medicin
-
- Bengtsson, Torbjörn, Professor (preses)
- Örebro universitet,Institutionen för läkarutbildning
-
- Nayeri, Fariba, Dr. (preses)
- PEAS Research Institue, Linköping
-
visa fler...
-
- Gustafsson, Anders, Professor (opponent)
- Institutionen för Odontologi, Karolinska Institutet, Stockholm
-
visa färre...
-
(creator_code:org_t)
- ISBN 9789176689226
- Örebro : Örebro universitet, 2013
- Engelska 86 s.
-
Serie: Örebro Studies in Medicine, 1652-4063 ; 83
- Relaterad länk:
-
https://oru.diva-por...
-
visa fler...
-
https://oru.diva-por...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- An essential goal in addressing inflammation is the return of tissue to homeostasis. Persistent infections often cause prolonged response and accumulation of immune cells, inducing imbalance in pro- and anti-inflammatory mediators, tissue destruction, and chronic inflammation. In periodontal disease, bacteria of the dental plaque are the primary aetiologic agents. Coronary artery disease (CAD) and chronic renal failure (CRF) are associated with periodontitis and involve systemic inflammation with atherosclerotic and fibrotic processes. The aims of this thesis were to study the effect of the bacterium Porphyromonas gingivalis and the anti-inflammatory mediator lipoxin A4 (LXA4) on blood cells in vitro, as well as to measure the expression of hepatocyte growth factor (HGF) in patients with periodontitis, CAD, and CRF. We found that LXA4 inhibits P. gingivalis–induced leukocyte platelet aggregation and reactive oxygen species (ROS) production in whole blood, by antagonizing the upregulation of CD11b/CD18 on leukocytes. The serum concentration of HGF was elevated in patients with periodontitis, CAD and CRF, indicating a systemic inflammation. However, the biological activity of HGF was reduced in serum from CRF patients and in saliva and gingival crevicular fluid of patients with periodontitis. This finding correlated with reduced growth of gingival epithelial cells incubated with saliva from patients with periodontitis. Neutrophil proteases reduced the biological activity of HGF in patients with CRF, and HGF expression in patients with periodontitis was associated with higher concentration and numbers of species of periodontal bacteria. In conclusion, these studies suggest that systemic spreading of periodontal bacteria, leukocyte-platelet activation and disturbed HGF-expression are crucial components involved in tissue degradation and progression of chronic inflammation.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Odontologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Dentistry (hsv//eng)
Nyckelord
- Hepatocyte growth factor
- Porphyromonas gingivalis
- periodontitis
- systemic inflammation
- coronary artery disease
- chronic renal failure
- lipoxin
- Biomedicin
- Biomedicine
Publikations- och innehållstyp
- vet (ämneskategori)
- dok (ämneskategori)
Hitta via bibliotek
Till lärosätets databas