scholarly journals Hydroxyl-platelet-activating factor exists in blood of healthy volunteers and periodontal patients

2003 ◽  
Vol 12 (4) ◽  
pp. 221-227 ◽  
Author(s):  
Smaragdi Antonopoulou ◽  
Alexandros Tsoupras ◽  
George Baltas ◽  
Helen Kotsifaki ◽  
Zacharias Mantzavinos ◽  
...  
Keyword(s):  
Healthy Volunteers ◽  
High Performance ◽  
Gingival Crevicular Fluid ◽  
Periodontal Diseases ◽  
Platelet Activating Factor ◽  
Biologically Active ◽  
Biological Assays ◽  
Inflammatory Conditions ◽  
Oral Inflammation ◽  
Crevicular Fluid

Periodontal diseases are localized chronic inflammatory conditions of the gingival and underlying bone and connective tissue. Platelet-activating factor (PAF), a potent inflammatory phospholipid mediator that has been previously detected in elevated levels in inflamed gingival tissues, in gingival crevicular fluid and in saliva, is implicated in periodontal disease. Our results from previous studies showed that the biologically active phospholipid detected in gingival crevicular fluid is a hydroxyl-PAF analogue. In this study, hydroxyl-PAF analogue was detected for the first time in human blood derived from patients with chronic periodontitis as well as from periodontally healthy volunteers. The hydroxyl-PAF analogue was purified by high-performance liquid chromatography, detected by biological assays and identified by electrospray analysis. In addition, the quantitative determination of PAF and hydroxyl-PAF analogue (expressed as PAF-like activity) showed a statistically significant increase in the ratio of hydroxyl-PAF analogue levels to PAF levels in periodontal patients, suggesting that this bioactive lipid may play a role in oral inflammation.

scholarly journals Identification of a new endogenous platelet-activating factor-like molecule in gingival crevicular fluid

1998 ◽  
Vol 330 (2) ◽  
pp. 791-794 ◽  
Author(s):  
Smaragdi ANTONOPOULOU ◽  
A. Constantinos DEMOPOULOS ◽  
Dimitris ARGYROPOULOS ◽  
George BALTAS ◽  
Helen KOTSIFAKI ◽  
...  
Keyword(s):  
Periodontal Disease ◽  
Gingival Crevicular Fluid ◽  
Platelet Activating Factor ◽  
Human Platelets ◽  
Relative Molecular Mass ◽  
Tissue Destruction ◽  
Biological Assays ◽  
Causative Agents ◽  
Crevicular Fluid ◽  
The Relationship

Periodontal disease is an inflammatory disease and the major cause of tooth loss in adults. Bacteria and their products are the causative agents of this disease. Endogenous molecules mediate the inflammatory process and play a major role in its amplification and perpetuation as well as in the ensuing tissue destruction. The relationship between platelet-activating factor (PAF) and periodontal disease has not so far been examined thoroughly. We have isolated a phospholipid molecule with PAF-like activity from gingival crevicular fluid. This molecule, purified on HPLC, causes washed platelet aggregation with EC50 value 0.1 μM, based on phosphorus determination. It acts through PAF-receptors and is inactivated by PAF-acetylhydrolase. In addition, this phospholipid presents biological activity towards human platelets. The combination of the results obtained from the chemical and enzymic treatments, the biological assays as well as results from the electrospray analysis, leads to the conclusion that this phospholipid is a hydroxyl-PAF analogue with relative molecular mass 703. This PAF-like molecule may be implicated in periodontal disease.

scholarly journals PAF, a Putative Mediator of Oral Inflammation

2000 ◽  
Vol 11 (2) ◽  
pp. 240-258 ◽  
Author(s):  
L.M. McManus ◽  
R.N. Pinckard
Keyword(s):  
Cell Activation ◽  
Gingival Crevicular Fluid ◽  
Vascular Endothelial Cells ◽  
Wide Spectrum ◽  
Human Subjects ◽  
Platelet Activating Factor ◽  
Oral Diseases ◽  
Inflammatory Conditions ◽  
Oral Inflammation ◽  
Mixed Saliva

PAF, or platelet-activating factor, is a family of structurally related phospholipids (1-O-alkyl/acyl/alkenyl-2-acetylsn-glycero-3-phosphocholine) which possesses a wide spectrum of potent pro-inflammatory actions. These phospholipids are synthesized by a diverse array of cells, including neutrophilic polymorphonuclear leukocytes (PMN), platelets, mast cells, monocytes/macrophages, vascular endothelial cells, and lymphocytes. PAF targets these and other cells via specific, G-protein-coupled receptors to initiate intracrine, autocrine, paracrine, and juxtacrine cell activation. Of importance, these unique acetylated phospholipids are frequently synthesized in concert with pro-inflammatory lipid mediators derived from arachidonic acid. Since PAF synergizes with these and other mediators to amplify the inflammatory response, it seems likely that PAF plays an integral, perhaps pivotal, role in acute and chronic inflammatory processes. PAF is present in the mixed saliva of dentate, but not edentulous, human subjects. The levels of PAF in mixed saliva or in gingival crevicular fluid and tissues are significantly increased during oral inflammatory conditions such as periodontitis and mucositis. Interestingly, the levels of salivary PAF correlate with the extent/severity of these oral diseases. These observations suggest that PAF may participate in pathophysiologic events during the course of oral inflammation. The availability of specific PAF receptor antagonists and human recombinant PAF-acetylhydrolase (PAF-AH), a plasma enzyme which rapidly destroys PAF, should provide clinical tools for the investigation of the role of PAF in these and other inflammatory disorders; and perhaps, ultimately, some of these reagents may prove to be therapeutically useful in the treatment and management of these conditions.

Salivary Diagnosis - Clinical Uses in Assessing Oral Inflammation

2017 ◽  
Vol 68 (6) ◽  
pp. 1201-1204 ◽  
Author(s):  
Iulia Ioana Stanescu ◽  
Alexandra Totan ◽  
Florentina Rus ◽  
Daniela Miricescu ◽  
Brandusa Mocanu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Periodontal Disease ◽  
Gingival Crevicular Fluid ◽  
Oxidative Stress Marker ◽  
Clinical Settings ◽  
Tissue Destruction ◽  
Whole Saliva ◽  
Oral Inflammation ◽  
Positive Correlations ◽  
Crevicular Fluid

The past decades demonstrated that saliva and its components represent a remarkable diagnosis fluid with valuable clinical uses for both oral and systemic diseases. At the same time it is well established that oxidative stress is involved in a wide number of pathologies, including periodontitis. The specific aim of the present study which included 50 subjects is to determine if saliva can be used in clinical settings to correlate oxidative stress and tissue destruction markers with the severity of periodontal disease. An important oxidative stress marker - 8-hydroxydesoxyguanosine (8-OHdG) and a collagen degradation marker - beta-crosslaps (b-CTX) were quantified in both saliva and gingival crevicular fluid (GCF) using ELISA kits and were found to be significantly increased in the chronic periodontitis group when compared to respective controls (p[0.05). At the same time positive correlations were observed between whole saliva and gingival crevicular fluid (p[0.05). Significant correlations were also determined between GCF and salivary markers and clinical parameters of periodontal disease. Present results demonstrate that saliva and its components can successfully be used in clinical settings and represents a reliable tool for assessing periodontal disease severity.

scholarly journals Are Proteinase 3 and Cathepsin C Enzymes Related to Pathogenesis of Periodontitis?

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Oya Türkoğlu ◽  
Elif Azarsız ◽  
Gülnur Emingil ◽  
Necil Kütükçüler ◽  
Gül Atilla
Keyword(s):  
Gingival Crevicular Fluid ◽  
Periodontal Diseases ◽  
Study Groups ◽  
Aggressive Periodontitis ◽  
Control Group ◽  
Proteinase 3 ◽  
Cathepsin C ◽  
Probing Depth ◽  
Inflammatory Processes ◽  
Crevicular Fluid

Aim. Cathepsin C is the activator of the polymorphonuclear leukocyte-derived proteinase 3, which contributes to inflammatory processes. The aim of the present study was to investigate gingival crevicular fluid (GCF) proteinase 3 and cathepsin C levels in periodontal diseases.Design. Eighteen patients with chronic periodontitis (CP), 20 patients with generalized aggressive periodontitis (G-AgP), 20 patients with gingivitis, and 18 healthy subjects were included in the study. Periodontal parameters including probing depth, clinical attachment level, papilla bleeding index, and plaque index were assessed in all study subjects. GCF proteinase 3 and cathepsin C levels were analyzed by ELISA.Results. GCF proteinase 3 total amount was significantly higher in diseased groups compared to control group, after adjusting ageP<0.05. No differences were found in GCF cathepsin C levels among the study groupsP>0.05. Periodontal parameters of sampling sites were positively correlated with GCF proteinase 3 total amountsP<0.01but not with cathepsin C total amountsP>0.05.Conclusions. Elevated levels of GCF proteinase 3 in CP, G-AgP, and gingivitis might suggest that proteinase 3 plays a role during inflammatory periodontal events in host response. However, cathepsin C in GCF does not seem to have an effect on the pathogenesis of periodontal diseases.

Diagnosis of Periodontal Diseases: Reaction Paper

1991 ◽  
Vol 5 (1) ◽  
pp. 37-40 ◽  
Author(s):  
M.J. Novak
Keyword(s):  
Gingival Crevicular Fluid ◽  
Periodontal Diseases ◽  
Diagnostic Techniques ◽  
Disease States ◽  
Specificity And Sensitivity ◽  
Biochemical Analyses ◽  
Clinical Measurements ◽  
The Individual ◽  
Crevicular Fluid ◽  
Technological Improvements

With the recent description of 12 different forms and sub-forms of periodontitis by the World Workshop in Clinical Periodontics (1989), increased emphasis has been placed on diagnosis. Dr. Ranney's review addressed the specificity and sensitivity of current diagnostic tests with respect to their ability to differentiate between health and disease and between the individual disease states. Although considerable microbiologic and immunologic data have been accumulated in the past decade, very little of this information has proved to be sufficiently sensitive to be of use in differential diagnosis. Clinical measurements provide us with an insensitive, retrospective analysis of what has already occurred but allow us to diagnose disease based on its natural history. Measures of attachment levels, by use of conventional probes, are only sufficiently sensitive indicators of periodontitis when as much as 20-30% of attachment has already been lost. Current technological improvements in probing measurements and radiographic assessment may increase sensitivity in this area. Future improvements in diagnostic techniques will occur with the advent of sensitive biochemical analyses of gingival crevicular fluid. These assays will provide a more objective analysis of inflammation and, in time, will provide sufficient sensitivity to allow for differentiation between and among the various forms of periodontal disease. Future directions in diagnosis will focus on the identification of disease-susceptible individuals and the prediction of future periodontal breakdown.

scholarly journals Hydrogen peroxide-based products alter inflammatory and tissue damage-related proteins in the gingival crevicular fluid of healthy volunteers: a randomized trial

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Valderlane L. P. Colares ◽  
Suellen N. L. Lima ◽  
Nágila C. F. Sousa ◽  
Mizael C. Araújo ◽  
Domingos M. S. Pereira ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Randomized Trial ◽  
Healthy Volunteers ◽  
Tissue Damage ◽  
Gingival Crevicular Fluid ◽  
Crevicular Fluid ◽  
Related Proteins

scholarly journals Gingival Crevicular Fluid and Serum Cystatin C Levels in Periodontal Health and Disease

2012 ◽  
Vol 32 (2) ◽  
pp. 101-107 ◽  
Author(s):  
Anuj Sharma ◽  
A. R. Pradeep ◽  
N. M. Raghavendra ◽  
P. Arjun ◽  
Rahul Kathariya
Keyword(s):  
Cystatin C ◽  
Chronic Periodontitis ◽  
Gingival Crevicular Fluid ◽  
Therapy Group ◽  
Periodontal Diseases ◽  
Periodontal Therapy ◽  
Periodontal Health ◽  
Healthy Group ◽  
Health And Disease ◽  
Crevicular Fluid

Cystatin C (CSTC) is an inhibitor of cysteine proteinases and could play a protective and regulatory role under inflammatory conditions. The present study was designed to assess the concentration of CSTC in gingival crevicular fluid (GCF) and serum, to find out their association if any, in periodontal health and disease. 30 subjects were selected divided into 3 groups consisting of 10 subjects in each group based on clinical parameters: periodontally healthy group, gingivitis group and chronic periodontitis group, while, chronic periodontitis group after 8 weeks of the treatment (scaling and root planing) constituted after periodontal therapy group. GCF and serum samples were collected from all subjects to estimate the levels of CSTC by ELISA. The mean CSTC concentration in GCF and serum was observed to be the highest in periodontitis group and lowest in periodontally healthy group with intermediate concentration in gingivitis group and after periodontal therapy group. CSTC concentration in GCF and serum increased proportionally with the severity of periodontal disease (from health to periodontitis group) and decreased after treatment. This suggests that CSTC increases with disease progression to prevent further periodontal degeneration and decreases after treatment due to bone metabolic homeostasis. Further, longitudinal prospective studies involving larger population are needed to confirm the findings of present study and to better understand the role of CSTC in the pathogenesis of periodontal diseases.

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