scholarly journals Clinical and Microbiological Evaluation of Biofilm-Gingival Interface Classification in Patients with Generalized Forms of Periodontitis

2014 ◽  
Vol 63 (2) ◽  
pp. 175-181 ◽  
Author(s):  
JAN KOWALSKI ◽  
RENATA GÓRSKA
Keyword(s):  
Polymerase Chain Reaction ◽  
Periodontal Diseases ◽  
Polymerase Chain Reaction Method ◽  
Study Group ◽  
Subgingival Plaque ◽  
Chain Reaction ◽  
Study Objective ◽  
Reaction Method ◽  
Group A ◽  
Polymerase Chain

STUDY OBJECTIVE: In 2008 a new division of periodontal diseases based on the concept of biofilm-gingival interface (BGI), was presented. The aim of this study was to assess whether the proposed BGI categories could be useful in diagnosing patients with generalized forms of both aggressive (gAP) and chronic (gCP) periodontitis. DESIGN AND KEY METHODS: The study group consisted of 40 individuals (17 with gAP and 23 with gCP). All patients were divided into three groups according to the BGI scale: 4 patients with P1 (pockets deeper than 4 mms with bleeding index below 10%), 20 individuals with P2 (pockets deeper than 4 mms with bleeding index 10-50%) and 16 individuals with P3 (pockets deeper than 4 mms with bleeding index above 50%). The presence of bacteria in subgingival plaque was analyzed using the polymerase chain reaction method. RESULTS: Statistically significant differences with respect to all parameters measured were found when patients were grouped according to the BGI scale--they were higher in P3 group. In gAP group A. actinomycetemcomitans and C. rectus were found in a higher numbers. No such differences were observed between P2 and P3 groups. CONCLUSIONS: The BGI scale seems to be helpful in effective and quick classifying of patients into adequate clinical subgroups.

scholarly journals SIRT1 (rs3740051) role in pituitary adenoma development

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Rasa Liutkeviciene ◽  
Alvita Vilkeviciute ◽  
Greta Morkunaite ◽  
Brigita Glebauskiene ◽  
Loresa Kriauciuniene
Keyword(s):  
Polymerase Chain Reaction ◽  
Pituitary Adenoma ◽  
Polymerase Chain Reaction Method ◽  
Control Group ◽  
Study Group ◽  
Chain Reaction ◽  
Lower Odds ◽  
Reaction Method ◽  
Non Invasive ◽  
Polymerase Chain

Abstract Background Our purpose was to determine if SIRT1 (rs4746720, rs3740051) genotypes have an influence on the development of pituitary adenoma (PA). Methods The study group included 142 patients with pituitary adenoma (PA) and the control group consisted of 826 healthy people. The genotyping of SIRT1 (rs4746720, rs3740051) was carried out using the real-time polymerase chain reaction method. Results Statistically significant results were obtained in the analysis of SIRT1 rs3740051. Significant differences in genotype (G/G, G/A, A/A) distribution were obtained comparing patients with PA without recurrence and PA with recurrence (0, 17.9, 82.1% vs. 6.7, 6.7, 86.7%, respectively, p = 0.022). Also, statistically significant differences were observed when comparing the genotype (G/G, G/A, A/A) distribution in the non-invasive PA group and the invasive PA group (3.4, 25.9, 70.7% vs. 0, 8.3, 91.7%, respectively, p = 0.003), and allele G was less frequently observed in invasive PA, than in non-invasive PA (4.2% vs. 16.4%, p < 0,001). Further analysis revealed that G/A (OR = 0.261; 95% CI:0.099–0.689; p = 0.007) and each allele A (OR = 0.229; 95% CI:0.091–0.575; p = 0.002) were associated with lower odds of occurring an invasive PA. Conclusions Our study revealed that SIRT1 rs3740051 is associated with PA recurrence and invasiveness. The haplotype containing alleles C-A in rs12778366-rs3740051 was found to be associated with increased odds of PA development as well.

Study of the HLA-DPβ1 Locus by the Polymerase Chain Reaction Technique in Patients with Hodgkin's Disease

1993 ◽  
Vol 79 (2) ◽  
pp. 133-136 ◽  
Author(s):  
Guseppe Pellegris ◽  
Claudia Lombardo ◽  
Annelisa Cantoni ◽  
Liliana Devizzi ◽  
Monica Balzarotti
Keyword(s):  
Polymerase Chain Reaction ◽  
Hodgkin's Disease ◽  
Hodgkin’S Disease ◽  
Polymerase Chain Reaction Method ◽  
Healthy Controls ◽  
Chain Reaction ◽  
Reaction Method ◽  
Significant Difference ◽  
Polymerase Chain

Background A number of reports have studied associations between Hodgkin's disease and HLA. Some of them established correlation between several antigens and Hodgkin's disease, and others found no correlations. Methods The HLA DP locus was determined by the polymerase chain reaction method in 31 Hodgkin's disease patients and 58 healthy controls. Results No significant difference between patients and controls was noted. Conclusions Further investigations are needed to confirm the hypothesis of a possible role of the HLA complex as one of the factors involved in Hodgkin's disease.

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