scholarly journals The influence of oral antimicrobial peptide content on the quantitative microflora composition in periodontal pockets among residents of a large industrial region

2021 ◽  
Vol 23 (3) ◽  
pp. 388-394
Author(s):  
I. V. Vozna ◽  
S. V. Pavlov ◽  
O. V. Voznyi
Keyword(s):  
Porphyromonas Gingivalis ◽  
Steel Industry ◽  
Oral Fluid ◽  
Comparison Group ◽  
Inverse Correlation ◽  
Assay Method ◽  
Study Group ◽  
Prevotella Intermedia ◽  
Degree Of Severity ◽  
Moderate Inverse Correlation

The aim was to study the influence of periodontal pocket microecology state on the local nonspecific resistance in steelworkers with generalized periodontitis. Materials and methods. In total, 178 patients were examined. The study group consisted of 126 patients with generalized periodontitis of initial (n = 8), I (n = 32), II (n = 68) and III (n = 18) degree of severity, chronic course, exposed to work-related hazardous agents. The comparison group consisted of 32 patients with periodontitis of initial (n = 5), I (n = 10), II (n = 11) and III (n = 6) degree of severity without exposure to harmful conditions of steel industry. The control group included 20 otherwise healthy individuals. Detection of the main five periodontopathogenic microorganisms in the crevicular fluid was carried out by the polymerase chain reaction method. The levels of lactoferrin and cathelicidin LL-37 were measured by the enzyme-linked immunosorbent assay method. Results. Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis were less common, than other opportunistic bacteria in both study groups with initial severity of generalized periodontitis. With the disease development, there was a tendency to increase the number of positive samples for all microorganisms. A correlation was found between the microorganism presence in the sample and the severity of periodontal disease. In the patients of clinical groups, the concentration of cathelicidin LL-37 in the oral fluid was reduced. In the study group, a moderate inverse correlation between cathelicidin and Porphyromonas gingivalis as well as a weak inverse correlation between cathelicidin and Prevotella intermedia were revealed. Lactoferrin was correlated directly and moderately with Porphyromonas gingivalis and Prevotella intermedia but weakly - with Treponema denticola. In the comparison group, there were a statistically significant moderate inverse correlation between cathelicidin and Porphyromonas gingivalis as well a direct correlation between lactoferrin and Porphyromonas gingivalis. Correlations between the concentrations of cathelicidin and lactoferrin in the oral fluid and other periodontopathogens were revealed to be weak. Conclusions. The studies have shown significant disruptions of the oral cavity microecology in the patients exposed to harmful effects of steel industry. The correlation between the concentration of antimicrobial peptides and periodontal pathogens in the periodontal pockets has been found.

scholarly journals Evaluation of the bone tissue metabolism in patients with generalized periodontitis of various degrees exposed to work-related harmful factors by the oral fluid Klotho protein content

2021 ◽  
Vol 23 (2) ◽  
pp. 274-279
Author(s):  
I. V. Vozna ◽  
A. V. Samoilenko ◽  
S. V. Pavlov ◽  
O. O. Kokar
Keyword(s):  
Vitamin D ◽  
Bone Tissue ◽  
Protein Concentration ◽  
Oral Fluid ◽  
Comparison Group ◽  
Periodontal Diseases ◽  
Study Group ◽  
Work Related ◽  
Klotho Protein ◽  
Degree Of Severity

The aim of the work is to study the Klotho protein concentration in the oral fluid of patients exposed to work-related harmful factors and to reveal correlations with the content of bone tissue and vitamin D metabolism markers. Materials and methods. The study group consisted of 126 patients with generalized periodontitis of initial (n = 8), I (n = 32), II (n = 68) and III (n = 18) degree of severity, chronic course, working in hazardous conditions of the “Dniprospetsstal” plant in Zaporizhzhia. The comparison group consisted of 32 periodontitis patients of initial (n = 5), I (n = 10), II (n = 11) and III (n = 6) degree of severity without exposure to work-related harmful factors. The control group included 20 otherwise healthy individuals aged 19–25 years without signs of periodontal diseases. The levels of vitamin D, VDBP, MMP-8 and osteocalcin were determined by enzyme-linked immunosorbent assays, the concentration of soluble Klotho was detected by the enzyme-linked ImmunoChem-2100 immunosorbent assay. Results. It was found, that in the study group of patients working in hazardous work-related conditions, the decrease in oral fluid Klotho protein concentration was greater, than in the comparison group of patients with periodontal diseases, but not exposed to work-related hazardous conditions. The indicator of Klotho protein is an early marker of the periodontal disease progression and varies inversely with the severity of periodontitis, starting in the early stages of the disease. The correlation coefficient between the level of Klotho protein and the degree of the disease severity in the comparison group patients was γ = -0.957, P < 0.05 and γ = -0.906, P < 0.05 – in the study group. In the patients with periodontal diseases, there was a decrease in the Klotho protein concentration with a parallel increase in the marker of bone tissue destruction - MMP-8, and a decrease in the marker of remodeling – osteocalcin, as compared to the controls. The decrease in Klotho protein concentration occurred with vitamin D deficiency and worsened with the vitamin D-binding protein reduction. Conclusions. The Klotho protein is the early, sensitive and specific diagnostic biomarker in dental diseases, and its measurement can be used as a predictor of inflammatory periodontal disease and its complications. The Klotho protein is one of the main regulators of bone metabolic processes.

scholarly journals STUDY OF BIOCHEMICAL MARKERS’ CONTENT OF BONE TISSUE METABOLISM IN THE ORAL LIQUID OF PATIENTS WITH GENERALIZED PERIODONTITIS

2020 ◽  
pp. 10-15
Author(s):  
I.V. Vozna ◽  
A.V. Samoilenko ◽  
S.V. Pavlov
Keyword(s):  
Vitamin D ◽  
Periodontal Disease ◽  
Vitamin D Deficiency ◽  
Bone Tissue ◽  
Biochemical Markers ◽  
Oral Fluid ◽  
Comparison Group ◽  
Study Group ◽  
Periodontal Tissue ◽  
Tissue Metabolism

The study aims to determine the concentration of vitamin D in the oral fluid, markers of bone destruction as well as to assess the diagnostic value of these indicators to optimize special programs for diagnostics and prevention of major dental diseases in the industrial region’s residents. The object and research methods. There were examined 178 patients. The study group consisted of 126 patients with generalized periodontitis of initial (8), I (32), II (68), and III (18) severity levels, chronic course who are working in hazardous conditions of the "Dniprospetsstal" plant in Zaporizhzhya. The comparison group included 32 patients with periodontitis of initial (5), I (10), II (11), and III (6) severity degrees, which do not have occupational health risks. The control group consisted of 20 relatively healthy individuals without signs of periodontal tissue disease. The level of vitamin D, VDBP, MMP-8, and osteocalcin was determined by enzyme-linked immunosorbent assay. Research results. It is established, that the patients with the initial severity of periodontal disease have minor vitamin D deficiency and as the severity progresses, the vitamin D deficiency increases. Therefore, in the third severity of the inflammatory process, there is a severe deficiency of vitamin D. It should be noted that in the study group patients who were working in hazardous production conditions, the decrease of vitamin D content in the oral fluid was more pronounced relative to the patients in the comparison group with periodontal disease and no occupational hazards. Vitamin D deficiency depends on the severity of periodontitis, which is confirmed by the established strong feedback of the comparison group (γ = -0.790, p <0.05), and that of the study group (γ = -0.778, p <0.05). Periodontitis was accompanied by a significant loss of vitamin D and was associated with a sharp decrease of VDBP protein. That is, not only the concentration of vitamin D changes but so does the protein responsible for the transfer and utilization of this vitamin. We have found a correlation between the VDBP presence in the sample and the severity of periodontitis. Strong feedback of the comparison group (γ = -0.962, p <0.05) and that of the study group (γ = -0.966, p <0.05) was detected. The patients had impaired bone tissue metabolism, which was accompanied by the bone destruction marker MMP-8 increase. The obtained data show a significant increase of MMP-8 content in the oral fluid in periodontitis patients, compared to the individuals with clinically intact periodontium, and reliably reflects the severity of the disease. We have established a direct strong connection between the level of MMP-8 in the oral fluid and the degree of the disease using the method of mathematical analysis. The correlation coefficient was (γ = 0.892, p <0.05) in the comparison group and (γ = 0.965, p <0.05) in the study group. The results of studying bone tissue formation activity considering the level of osteocalcin have shown that osteocalcin decreases with increasing severity of the disease. The correlation between osteocalcin levels and disease severity in the patient groups had strong feedback both in the comparison group (γ = -0.919, p <0.05) and in the study group (γ = -0.987, p <0.05). Conclusions. Biochemical markers allow detecting disorders of bone tissue metabolism and their level of concentration depends on the severity of periodontal tissue disease. The vitamin D deficiency, the concentration of VDBP, MMP-8, osteocalcin are more pronounced in the patients with periodontal disease experiencing occupational hazards compared to the patients who are not exposed to such conditions. The obtained results substantiate the feasibility of enzyme-linked immunosorbent assay introducing vitamin D, VDBP, MMP-8, osteocalcin in laboratory screening of periodontal tissue diseases as highly informative biochemical markers used for diagnostics and prognosis.

Биофармацевтические исследования по выбору основы для стоматологического геля с экстрактом барбариса

2020 ◽  
pp. 50-54
Author(s):  
З. Хаджиева ◽  
С. Поройский ◽  
И. Фирсова ◽  
А. Струсовская ◽  
В. Бавлакова ◽  
...  
Keyword(s):  
Porphyromonas Gingivalis ◽  
Actinobacillus Actinomycetemcomitans ◽  
Prevotella Intermedia ◽  
Prevotella Nigrescens

Исследованы биофармацевтические свойства модельных гелевых композиций c экстрактом корня барбариса и использованием в качестве гелеобразователей метилцеллюлозы, натриевой соли карбоксиметилцеллюлозы, натриевой соли альгиновой кислоты и поливинилового спирта методами прямой диффузии в агаровый гель и диализа через полупроницаемую мембрану. Определены кинетические закономерности процесса и скорости набухания исследуемых гелевых основ. Показана целесообразность использования натриевой соли альгиновой кислоты для получения стоматологического геля с экстрактом корня барбариса, обладающего специфической бактериостатической активностью в отношении таких пародонтопатогенных микроорганизмов, как Porphyromonas gingivalis, Prevotella intermedia, Prevotella nigrescens и Actinobacillus actinomycetemcomitans, для профилактики и лечения воспалительных заболеваний пародонта.

scholarly journals POS0068 HIGH LEVELS OF PORPHYROMONAS GINGIVALIS AND PREVOTELLA INTERMEDIA ANTIBODIES IN CHILDREN WITH JUVENILE IDIOPATHIC ARTHRITIS

2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 240.2-241
Author(s):  
F. Zekre ◽  
R. Cimaz ◽  
M. Paul ◽  
J. L. Stephan ◽  
S. Paul ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Juvenile Idiopathic Arthritis ◽  
Periodontal Disease ◽  
Porphyromonas Gingivalis ◽  
Joint Disease ◽  
Control Group ◽  
Prevotella Intermedia ◽  
Igg Antibodies ◽  
Idiopathic Juvenile Arthritis ◽  
High Level

Background:Idiopathic juvenile arthritis (JIA) is a heterogeneous group of pathologies whose origin remains unknown at present (1). They are characterised by a systemic inflammatory and joint disease affecting children under 16 years of age. The current classification groups the different forms of JIA into 7 distinct entities (systemic forms, polyarticular forms with or without rheumatoid factors, oligoarticular forms, inflammatory arthritis associated with enthesopathies (ERA), arthritis associated with psoriasis and unclassifiable arthritis). Exact etiology of JIA is still unknown. To date, the various hypotheses put forward on the occurrence of JIAs integrate the genetic and environmental framework.The link between periodontal disease and rheumatoid arthritis (RA) is largely reported. Recently, Porphyromonas gingivalis (P. gingivalis) infection explained the occurrence of arthritis in rodent and in RA (2). Several studies mention the beneficial effect of P. gingivalis treatment on disease activity.Currently, there are very few studies on the prevalence of P. gingivalis in patients with JIA and the possible involvement of the germ in the development of inflammatory joint diseases in the pediatric population(3)(4).Objectives:The objective of our study is to determine presence of high IgG antibodies against P. gingivalis and Prevotella Intermedia in a cohort of patients with JIA compared to a control population and to determine variation of level according to sub-classes of JIA.Methods:Sera were obtained from 101 patients satisfying the ILAR classification criteria for JIA and in 25 patients with two other dysimmune disorders (type 1 diabetes and juvenile inflammatory bowel disease). Level of IgG antibodies against P. gingivalis and Prevotella Intermedia were obtained by homemade ELISA already used previously (5).Results:In the JIA group, major children were oligarthritis (47.5%), polyarthritis represents 31.7% of JIAs, ERA and systemic forms of JIA are respectively 9 and 11%. For the control group, 10 (40%) children had diabetes and 15 (60%) had IBD.Levels of anti-P. gingivalis anti-Prevotella Intermedia antibodies were higher in AJI group compared at control groups (P<0.01, P<0.05). Theses difference are mainly related to oligoarthritis and ERA subsets for both P. gingivalis and Prevotella Intermedia.Figure 1.Relative titer of antibodies to P. gingivalis and anti Prevotella intermedia. *: P<0.05; **: P<0.01; ***: P<0.001. P. gingivalis (control vs oligoarthritis p= 0.0032. control vs ERA p= 0.0092). Prevotella intermedia (control vs oligoarthritis p= 0.0194. control vs ERA p= 0.0039).Conclusion:We confirmed high level of anti-P. gingivalis and anti-Prevotella intermedia antibodies in JIA compared to other inflammatory disorders. For the first time, we observed that this high level was mainly in oligoarthritis and ERA. Further investigations are required to investigate involvement of oral dysbiosis in AJI pathogenesis. As observed in RA, it could be a new way to integrate in JIA therapy management.References:[1]Thatayatikom A, De Leucio A. Juvenile Idiopathic Arthritis (JIA). StatPearls Publishing; 2020[2]Cheng Z, Meade J, Mankia K, Emery P, Devine DA. Periodontal disease and periodontal bacteria as triggers for rheumatoid arthritis. Best Pract Res Clin Rheumatol. 2017;31(1):19–30.[3]Romero-Sánchez C, Malagón C, Vargas C, Fernanda Torres M, Moreno LC, Rodríguez C, et al. Porphyromonas Gingivalis and IgG1 and IgG2 Subclass Antibodies in Patients with Juvenile Idiopathic Arthritis. J Dent Child Chic Ill. 2017 May 15;84(2):72–9.[4]Lange L, Thiele GM, McCracken C, Wang G, Ponder LA, Angeles-Han ST, et al. Symptoms of periodontitis and antibody responses to Porphyromonas gingivalis in juvenile idiopathic arthritis. Pediatr Rheumatol Online J. 2016 Feb 9[5]Rinaudo-Gaujous M, Blasco-Baque V, Miossec P, Gaudin P, Farge P, Roblin X, et al. Infliximab Induced a Dissociated Response of Severe Periodontal Biomarkers in Rheumatoid Arthritis Patients. J Clin Med. 2019 May 26;8(5).Disclosure of Interests:None declared.

Antibacterial Activity of Silver-Hydroxyapatite/Titania Nanocomposite Coating on Titanium against Oral Bacteria

2007 ◽  
Vol 330-332 ◽  
pp. 455-458 ◽  
Author(s):  
An Chun Mo ◽  
Wei Xu ◽  
Su Qin Xian ◽  
Yu Bao Li ◽  
Shi Bai
Keyword(s):  
Antibacterial Activity ◽  
Streptococcus Mutans ◽  
Porphyromonas Gingivalis ◽  
Nanocomposite Coating ◽  
Oral Bacteria ◽  
Tio2 Coating ◽  
Prevotella Intermedia ◽  
Anaerobic Incubation ◽  
Coating Method ◽  
Coated Surfaces

This study was focused on evaluating the bactericidal and anti-adhesive efficacy of silver-hydroxyapatite/ titania nanocomposites (nAg-HA/TiO2) coating on titanium against oral bacteria. Porphyromonas gingivalis, Prevotella intermedia and Fusohacterium nucleatum and Streptococcus mutans were used. Antibacterial activity of nAg-HA/TiO2 coating was investigated quantitatively using film applicator coating method and titanium plates incubated with bacteria were prepared for SEM to observe the adherence of oral bacteria. The viability of each type of bacteria on the antibacterial film was suppressed to about 10% after anaerobic incubation for 3 hours. Image of SEM demonstrated that bacteria on sandblasting surfaces were relatively confluent whilst on coated surfaces fewer bacteria were observed. Adherence of bacteria on nAg-HA / TiO2-coated surfaces compared with uncoated surfaces was remarkably decreased.

Профилактика воспалительных заболеваний ротовой полости у человека с помощью комбинации пробиотических штаммов Streptococcus salivarius BLIS K12 и BLIS M18 в наземном изоляционном эксперименте «SIRIUS-19»

2021 ◽  
Author(s):  
Л. Прокопович
Keyword(s):  
Porphyromonas Gingivalis ◽  
Aggregatibacter Actinomycetemcomitans ◽  
Treponema Denticola ◽  
Prevotella Intermedia ◽  
Streptococcus Salivarius

Изучены синергия штаммов саливарного стрептококка BLIS K12 и M18 в ходе профилактики воспаления ротоглотки, а также возможности инвазии протективной микрофлоры в процессе межличностного общения в замкнутом пространстве искусственной среды обитания. Впервые в клинической практике изучено влияние пробиотиков на основе саливарного стрептококка на пародонтопатогены I и II порядков: Prevotella intermedia, Tanerella forsythia, Treponema denticola, Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis. Полученные результаты можно расценивать как положительные. По результатам наземного эксперимента «SIRIUS-19» планируется проводить закупки для космических экспериментов с шифрами «Пародонт» и «Пародонт-ЛОР».

scholarly journals Characteristics of the course of gastric and duodenal ulcer disease concurrent with duodenal insufficiency

2017 ◽  
Vol 89 (12) ◽  
pp. 76-80
Author(s):  
M S Busygina ◽  
Ya M Vakhrushev
Keyword(s):  
Duodenal Ulcer ◽  
Electrical Activity ◽  
Comparison Group ◽  
Epigastric Pain ◽  
Empty Stomach ◽  
Study Group ◽  
Duodenal Ulcer Disease ◽  
Ulcer Disease ◽  
Ph Values ◽  
Duodenal Ph

Aim. To comprehensively study the course of gastric ulcer disease (GUD) and duodenal ulcer disease (DUD) concurrent with chronic duodenal insufficiency (CDI). Materials and methods. Ulcer disease (UD) was verified on the basis of the results of clinical and fibrogastroduodenoscopic examinations. The data of contrast duodenography and cavitary manometry were used to identify CDI. Gastroduodenal motor activity was investigated using the peripheral electrogastrograph EGG-4M. The results of pH measurements were employed to assess the state of gastric acid secretion and duodenal pH values. Results. A comprehensive examination was made in 106 patients with UD concurrent with CDI (a study group) and 30 UD patients without CDI (a comparison group). Epigastric pain was noted in the patients with GUD in the study and comparison groups (91.5 and 84.6%, respectively), but the pain was mainly aching in the patients with concomitant CDI and more intense (77.8%) in those without this condition. In the study group, heartburn was more common in patients with GUD and DUD (75.3 and 71.4%, respectively) than in those with UD in the comparison group (28.5 and 37.5%, respectively). Helicobacter pylori tests were positive in 23.8% of the patients in the study group and in 57.2% in the comparison group. Electrogastrography indicated that the patients with GUD and CDI had bradygastria and hypokinesis on an empty stomach; the electrical activity was reduced after eating. In the comparison group, tachygastria and hyperkinesis were detected on an empty stomach; these postprandial indicators were elevated. H. pylori tests were positive in 34.7% of the patients with DUD and CDI and in 63.6% of those with DUD without CDI. The postprandial electrical activity increased in patients with DUD and decreased in the comparison group. The specific features of changes in gastric and duodenal pH values in GUD and DUD concurrent with CDI in comparison with the isolated course of UD. Conclusion. The immediate and long-term follow-ups show that GUD and DUD concurrent with CDI run a more persistent course; the time of ulcer healing increases and the periods of remission decrease.

scholarly journals Influence of various treatment methods on the content of cytokines in saliva of patients with chronic sialadenitis

2018 ◽  
Vol 99 (4) ◽  
pp. 593-597
Author(s):  
S Z Aliev
Keyword(s):  
Comparison Group ◽  
Interleukin 2 ◽  
Interferon Γ ◽  
Interleukin 1Β ◽  
Comprehensive Treatment ◽  
Study Group ◽  
Local Immunotherapy ◽  
Chronic Sialadenitis ◽  
Cytokine Levels ◽  
Mixed Saliva

Aim. Study of the main cytokines (interleukin-1β and -2, interferon γ) in the mixed saliva from patients with chronic sialadenitis on the basic and comprehensive treatment dynamically. Methods. During the period of 2014 to 2017 we performed examination and treatment of patients with salivary gland diseases. Out of them we defined a group with chronic non-specific sialadenitis including 45 patients seen in the clinic in exacerbation. Patients in the comparison group received basic treatment. Patients in the study group additionally to conventional treatment were administered local immunotherapy. Measurement of cytokine levels in the oral fluid was performed in 45 patients with chronic sialadenitis in exacerbation and in 10 practically healthy subjects. Results. The level of interleukin-1β in saliva was found to be significantly increased before treatment (p <0.05). After the treatment interleukin-1β level in saliva decreased in both groups but most significantly this parameter decreased in the study group. After including local immunocorrection into the treatment complex dynamic decrease of interleukin-2 to 14.7±0.4 pg/ml was registered, which apparently is associated with stabilization of immune processes in the oral cavity. After the treatment conducted according to traditional scheme in the comparison group the level of interferon γ in saliva increased to 7.2±0.2 pg/ml which is 1.1 times higher than before treatment. Conclusion. In patients with chronic sialadenitis in exacerbation the level of interleukin-1β statistically significantly increases by 1. times (p <0.05), interleukin 2 - by 2.1 times (p <0.05) and the level of interferon γ decreases by 1.4 times (p <0.05) which is indicative of immunological signs of inflammatory reaction; use of local immunocorrection leads to more prominent decrease of interleukin-1β (by 20.3 vs 16.2% in comparison group; p <0.05), interleukin-2 (by 38.8 vs 26.6%; p <0.05) and increase of interferon γ (by 21.2 vs 12.5% in comparison group; p <0.05).

Sign in / Sign up

Export Citation Format

Share Document