Morphological characteristics of models of generalized experimental periodontitis. Treatment with acisol

2018 ◽  
pp. 36-40
Author(s):  
Y. V. Maskurova ◽  
T. V. Gayvoronskaya ◽  
N. V. Sokolovsky
Keyword(s):  
Lipid Peroxidation ◽  
Experimental Study ◽  
Clinical Manifestations ◽  
Morphological Characteristics ◽  
Acute Stage ◽  
Periodontal Tissues ◽  
Experimental Periodontitis ◽  
Peroxidation Processes ◽  
The Given ◽  
Different Levels

Recently, the alterative effect of stress on periodontium, which is associated with the disturbance of lipid peroxidation processes, is increasingly being considered. In this regard, in order to reduce the severity of clinical manifestations of periodontitis in the acute stage, it is advisable to use antioxidant and antihypoxic therapy. In an experimental study, a comparative analysis of inflammatory-destructive periodontal lesions was performed at different levels of stress, and the therapeutic effect of acyzole on the degree of regeneration of soft periodontal tissues under the given conditions was determined.

scholarly journals REACTIVE OXYGEN AND NITROGEN SPECIES ROLE IN EXPERIMENTAL PERIODONTITIS DEVELOPMENT

2018 ◽  
Author(s):  
A. Ye. Demkovych
Keyword(s):  
Nitric Oxide ◽  
Lipid Peroxidation ◽  
Blood Serum ◽  
Inflammatory Process ◽  
Reactive Oxygen ◽  
Nitrogen Species ◽  
Initial Development ◽  
Periodontal Tissues ◽  
Experimental Periodontitis ◽  
Nitric Oxide Metabolites

Introduction. Activation of lipid peroxidation is one of the trigger mechanisms of periodontium injury, which is primary caused by cellular damage. Reactive oxygen and nitrogen species (RONS) are able to cause damage to a cell as well as final products of lipid peroxidation, including unsaturated aldehydes and other metabolites. Objective. The aim of the research was to determine the role of RONS and accumulation of lipid peroxidation derivatives in initial development and formation of chronical inflammatory process in periodontium. Methods. Experimental periodontitis was modeled in animals by injection of complex mixtures of microorganisms diluted in egg protein into periodontal tissues. The results of biochemical studies of free radical processes activity in blood serum were evaluated by content of diene, triene conjugates, TBA-active products and total quantity of metabolites of nitric oxide (NO2–+NO3–), which were determined on the 7th, 14th and 30th days of the experiment. Results. Generation of active forms of oxygen is more influential, providing longevity of inflammatory process. This pays attention to typical dynamics of changes in active processes of lipid peroxidation in the development and course of experimental periodontitis. The study of inflammatory process with a bacterial-immune component in the rats’ periodontal complex proved accumulation of lipid peroxidation and nitric oxide metabolites in blood serum.Conclusions. The preservation of increased lipid peroxidation and nitric oxide metabolites in blood serum of the experimental animals with acute periodontitis conduce enhance of alteration and delayed healing that result in its sequel into chronical periodontitis.

scholarly journals Endoscopic and morphological features of chronic subatrophic gastroduodenitis in children

2015 ◽  
Vol 96 (1) ◽  
pp. 42-45 ◽  
Author(s):  
E M Nikiforova ◽  
N V Malyuzhinskaya ◽  
M A Chueva ◽  
V V Alferova ◽  
E N Solov’ev
Keyword(s):  
Intestinal Metaplasia ◽  
Breath Test ◽  
Clinical Manifestations ◽  
Morphological Characteristics ◽  
Treatment Compliance ◽  
Duodenal Mucosa ◽  
Acute Stage ◽  
Low Grade ◽  
Functional Features ◽  
H Pylori

Aim. To identify the pecularities of clinical, functional features and morphological characteristics in children with subatrophic gastroduodenitis after eradication treatment.Methods. Gastrointestinal tract condition was examined in 26 children with subatrophic gastroduodenitis. Esophagogastroduodenoscopy with morphological analysis of biopsy specimens, esophageal pH test and urea breath test were performed.Results. 16 (60.7%) children reported low-grade pain, severe pain occurred in 3 (11.5%) patients, no abdominal pain was reported in 7 (27.6%) patients. A biopsy specimen was gained in 22 patients; moderate contamination with H. pylori was detected in 13 (59%) patients, severe - in 9 (41%) patients. Breath test was positive in all patients (n=26). Morphological study revealed fibrotic changes in 14 (63.6%) patients, atrophy and sclerosis lesions - in 7 (31.8%) and 17 (77.3%) patients, respectively, in addition to clear signs of inflammation. Intestinal metaplasia of the gastric mucosa was discovered in 4 (18.2%) children. Candidiasis of the stomach and duodenum was diagnosed in 7 (31.8%) children. All patients were administered standard eradication treatment. Repeated breath test after 4 weeks was positive in 9 (41%) patients, including 7 (31.8%) who were diagnosed with candidiasis by biopsy test. At 12 months, the control endoscopy performed in 19 patients: 5 patients, who failed to follow the recommendation, had marked clinical and endoscopic signs of relapse, no patients with good treatment compliance (n=14, 73.6%) had any clinical manifestations, although endoscopic signs of inflammation preserved in 9 (47.4%) children. Biopsy with histological examination was repeated in 9 patients. Signs of inflammation were significantly reduced in 6 (66.7%) patients, while the foci of atrophy, sclerosis and intestinal metaplasia retained in 2 out of 9 children. Contamination with H. pylori had significantly decreased.Conclusion. Endoscopic signs of gastroduodenal chronic inflammation correspond to the severity of morphological characteristics in the acute stage of gastroduodenitis. Children with preserved signs of intestinal metaplasia of gastric and duodenal mucosa require intensive treatment and prolonged follow-up.

Comparative analysis of polymorphic variants of IL-17A and MMP-1 genes with the risk of developing chronic periodontitis in petrochemical workers

2020 ◽  
Vol 60 (10) ◽  
pp. 687-693
Author(s):  
Iskander I. Zaidullin ◽  
Denis O. Karimov ◽  
Lilija K. Karimova ◽  
Milyausha F. Kabirova ◽  
Rasima R. Galimova ◽  
...  
Keyword(s):  
Ethylene Oxide ◽  
Chronic Periodontitis ◽  
Periodontal Diseases ◽  
Clinical Manifestations ◽  
Control Group ◽  
Periodontal Tissues ◽  
Dental Examination ◽  
Number Of Patients ◽  
Increased Risk ◽  
Harmful Substances

The susceptibility to the development and progression of inflammatory periodontal diseases, which depends on genetic and external factors (smoking, stress, oral hygiene), varies widely. In the development of these diseases, an important role is played not only by the presence of periodontal pathogenic microorganisms, but also by the presence of congenital or acquired immunodeficiency, immunoregulatory defects. The immune system plays a key role in the physiological and pathological processes of periodontal tissues. In this regard, IL17, produced by CD4+ Th cells, which has both Pro-inflammatory and protective activity, is of particular interest in the pathogenesis of periodontitis. The aim of study was to identify the relationship between polymorphic loci of the IL-17A (rs2275913) and MMP-1 (rs1799750) genes and clinical manifestations of chronic periodontitis in petrochemical workers. Dental examination was performed in 92 ethylene oxide production workers with chronic periodontitis and 74 patients with chronic periodontitis who did not come into contact with chemical factors (control group). Genotyping of polymorphisms rs2275913 of the IL17A gene and rs1799750 of the MMP1 gene was performed by allele-specific real-time polymerase chain reaction (PCR). Hygienic assessment of the degree of air pollution of the working area with harmful substances was carried out by gas chromatography according to the guidelines for the determination of harmful substances in the air № 5098-89, № 3119-84. When comparing the results of studies of both groups, there were no statistically significant differences in the frequency distributions of allelic variants and genotypes of the IL-17A and MMP-1 genes. The AA/AG genotypes of the IL-17A gene were associated with an increased risk of severe disease compared to the GG genotype in workers in the main group (OR=6.1; 95% CI 1.33-28.5; p=0.021) and in the control group (OR=7.26; 95% CI 1.34-39.25; p=0.016). Carriers of the A allele in the control group increased the risk of severe chronic periodontitis by 2.4 times compared to carriers of the G allele (OR=2.41; 95% CI 1.19-4.87; p=0.014). During the dental examination of employees of the ethylene oxide plant, the clinical course of periodontal diseases was more severe in comparison with the control group, and the number of patients with severe periodontitis was twice as high. It was found that the AA/AG genotypes of the IL-17A gene and the carrier of the A allele are associated with increased susceptibility to the development of severe chronic periodontitis. The association between the MMP-1 gene polymorphism and the risk of severe forms of chronic periodontitis has not been established. A risk factor for the development of inflammatory periodontal diseases in employees of the petrochemical complex is a complex of harmful production factors.

Pathogenetic Therapy of Patients with Recurrent Genital Herpes

2020 ◽  
Vol 65 (5-6) ◽  
pp. 30-34
Author(s):  
L. L. Logvina ◽  
D. N. Bayram ◽  
Z. A. Kambachokova ◽  
F. V. Shavaeva ◽  
Z. S. Krymshokalova ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Blood Plasma ◽  
Genital Herpes ◽  
Antioxidant Defense ◽  
Clinical Manifestations ◽  
Complex Treatment ◽  
Herpesvirus Infection ◽  
Recurrent Genital Herpes ◽  
Complex Therapy ◽  
Pathogenetic Therapy

Evaluation of the effectiveness of aminophthalhydroside in the complex treatment of patients with recurrent genital herpes was carried out. The efficacy of the drug was assessed by clinical, biochemical, and immunological criteria. The inclusion of aminophthalhydrazide in the complex therapy of patients with recurrent herpesvirus infection led to an earlier relief of clinical manifestations of the disease, an increase in the relapse period, a decrease in lipid peroxidation products in the blood plasma, an increase in the content of antioxidant defense components, and correction of immunological disorders.

scholarly journals Granulocyte colony-stimulating factor (G-CSF) mediates bone resorption in periodontitis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Hui Yu ◽  
Tianyi Zhang ◽  
Haibin Lu ◽  
Qi Ma ◽  
Dong Zhao ◽  
...  
Keyword(s):  
Bone Resorption ◽  
Alveolar Bone ◽  
Bone Volume ◽  
Granulocyte Colony Stimulating Factor ◽  
Colony Stimulating Factor ◽  
Periodontal Tissues ◽  
Gingival Epithelial Cells ◽  
Trap Staining ◽  
Experimental Periodontitis ◽  
Stimulating Factor

Abstract Background Granulocyte colony-stimulating factor (G-CSF) is an important immune factor that mediates bone metabolism by regulating the functions of osteoclasts and osteoblasts. Bone loss is a serious and progressive result of periodontitis. However, the mechanisms underlying the effects of G-CSF on periodontal inflammation have yet not been completely elucidated. Here, we examined whether an anti-G-CSF antibody could inhibit bone resorption in a model of experimental periodontitis and investigated the local expression of G-CSF in periodontal tissues. Methods Experimental periodontitis was induced in mice using ligatures. The levels of G-CSF in serum and bone marrow were measured; immunofluorescence was then performed to analyze the localization and expression of G-CSF in periodontal tissues. Mice with periodontitis were administered anti-G-CSF antibody by tail vein injection to assess the inhibition of bone resorption. Three-dimensional reconstruction was performed to measure bone destruction‐related parameters via micro-computed tomography analysis. Immunofluorescence staining was used to investigate the presence of osteocalcin-positive osteoblasts; tartrate-resistant acid phosphatase (TRAP) staining was used to observe osteoclast activity in alveolar bone. Results The level of G-CSF in serum was significantly elevated in mice with periodontitis. Immunofluorescence analyses showed that G-CSF was mostly expressed in the cell membrane of gingival epithelial cells; this expression was enhanced in the periodontitis group. Additionally, systemic administration of anti-G-CSF antibody significantly inhibited alveolar bone resorption, as evidenced by improvements in bone volume/total volume, bone surface area/bone volume, trabecular thickness, trabecular spacing, and trabecular pattern factor values. Immunofluorescence analysis revealed an enhanced number of osteocalcin-positive osteoblasts, while TRAP staining revealed reduction of osteoclast activity. Conclusions G-CSF expression levels were significantly up-regulated in the serum and gingival epithelial cells. Together, anti-G-CSF antibody administration could alleviates alveolar bone resorption, suggesting that G-CSF may be one of the essential immune factors that mediate the bone loss in periodontitis.

scholarly journals A systematic review of historical and current trends in Chagas disease

2021 ◽  
Vol 8 ◽  
pp. 204993612110337
Author(s):  
Diego-Abelardo Álvarez-Hernández ◽  
Rodolfo García-Rodríguez-Arana ◽  
Alejandro Ortiz-Hernández ◽  
Mariana Álvarez-Sánchez ◽  
Meng Wu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Chagas Disease ◽  
Case Reports ◽  
Clinical Manifestations ◽  
Human Case ◽  
Acute Stage ◽  
Diagnostic Tools ◽  
Chronic Stage ◽  
Pubmed Database ◽  
Trypanocidal Drugs

Introduction: Chagas disease (CD) is caused by Trypanosoma cruzi. When acquired, the disease develops in stages. For diagnosis, laboratory confirmation is required, and an extensive assessment of the patient’s health should be performed. Treatment consists of the administration of trypanocidal drugs, which may cause severe adverse effects. The objective of our systematic review was to analyze data contained in the CD published case reports to understand the challenges that patients and clinicians face worldwide. Materials and methods: We performed a systematic review following the PRISMA guidance. PubMed database was explored using the terms ‘American trypanosomiasis’ or ‘Chagas disease’. Results were limited to human case reports written in English or Spanish. A total of 258 reports (322 patients) were included in the analysis. Metadata was obtained from each article. Following this, it was analyzed to obtain descriptive measures. Results: From the sample, 56.2% were males and 43.8% were females. Most cases were from endemic countries (85.4%). The most common clinical manifestations were fever during the acute stage (70.0%), dyspnea during the chronic stage in its cardiac form (53.7%), and constipation during the chronic stage in its digestive form (73.7%). Most patients were diagnosed in the chronic stage (72.0%). Treatment was administered in 56.2% of cases. The mortality rate for the acute stage cases was 24.4%, while for the chronic stage this was 28.4%. Discussion: CD is a parasitic disease endemic to Latin America, with increasing importance due to human and vector migration. In this review, we report reasons for delays in diagnosis and treatment, and trends in medical practices. Community awareness must be increased to improve CD’s diagnoses; health professionals should be appropriately trained to detect and treat infected individuals. Furthermore, public health policies are needed to increase the availability of screening and diagnostic tools, trypanocidal drugs, and, eventually, vaccines.

Embodying the culture of achievement: Culture between illness and perfection is a ‘thin line’ – obtaining the ideal female body as an act of achievement

2021 ◽  
pp. 1354067X2110040
Author(s):  
Josefine Dilling ◽  
Anders Petersen
Keyword(s):  
Experimental Study ◽  
Human Body ◽  
Female Body ◽  
The Body ◽  
Thin Line ◽  
Complex Processes ◽  
The Individual ◽  
Different Levels ◽  
The Ideal ◽  
Body Ideals

In this article, we argue that certain behaviour connected to the attempt to attain contemporary female body ideals in Denmark can be understood as an act of achievement and, thus, as an embodiment of the culture of achievement, as it is characterised in Præstationssamfundet, written by the Danish sociologist Anders Petersen (2016) Hans Reitzels Forlag . Arguing from cultural psychological and sociological standpoints, this article examines how the human body functions as a mediational tool in different ways from which the individual communicates both moral and aesthetic sociocultural ideals and values. Complex processes of embodiment, we argue, can be described with different levels of internalisation, externalisation and materialisation, where the body functions as a central mediator. Analysing the findings from a qualitative experimental study on contemporary body ideals carried out by the Danish psychologists Josefine Dilling and Maja Trillingsgaard, this article seeks to anchor such theoretical claims in central empirical findings. The main conclusions from the study are used to structure the article and build arguments on how expectations and ideals expressed in an achievement society become embodied.

scholarly journals Chikungunya Manifestations and Viremia in Patients Who Presented to the Fever Clinic at Bangkok Hospital for Tropical Diseases during the 2019 Outbreak in Thailand

2021 ◽  
Vol 6 (1) ◽  
pp. 12
Author(s):  
Hisham A Imad ◽  
Juthamas Phadungsombat ◽  
Emi E Nakayama ◽  
Sajikapon Kludkleeb ◽  
Wasin Matsee ◽  
...  
Keyword(s):  
Chikungunya Virus ◽  
Clinical Manifestations ◽  
Clinical Findings ◽  
Acute Stage ◽  
Tropical Diseases ◽  
Healthy Individuals ◽  
Rt Pcr ◽  
Viral Loads ◽  
The Family ◽  
Systemic Symptoms

Chikungunya virus is an Alphavirus belonging to the family Togaviridae that is transmitted to humans by an infected Aedes mosquito. Patients develop fever, inflammatory arthritis, and rash during the acute stage of infection. Although the illness is self-limiting, atypical and severe cases are not uncommon, and 60% may develop chronic symptoms that persist for months or even for longer durations. Having a distinct periodical epidemiologic outbreak pattern, chikungunya virus reappeared in Thailand in December 2018. Here, we describe a cohort of acute chikungunya patients who had presented to the Bangkok Hospital for Tropical Diseases during October 2019. Infection was detected by a novel antigen kit and subsequently confirmed by real-time RT-PCR using serum collected at presentation to the Fever Clinic. Other possible acute febrile illnesses such as influenza, dengue, and malaria were excluded. We explored the sequence of clinical manifestations at presentation during the acute phase and associated the viral load with the clinical findings. Most of the patients were healthy individuals in their forties. Fever and arthralgia were the predominant clinical manifestations found in this patient cohort, with a small proportion of patients with systemic symptoms. Higher viral loads were associated with arthralgia, and arthralgia with the involvement of the large joints was more common in female patients.

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