scholarly journals Comparative evaluation of IL-17 and TGF-β expression in tissues of patients with chronic periodontitis and healthy individuals using real-time PCR

2018 ◽  
Vol 10 (1) ◽  
pp. 8-12
Author(s):  
Kazem Fatemi ◽  
Seyed Abdolrahim Rezaee ◽  
Amir Moeintaghavi ◽  
Farid Shiezadeh ◽  
Golnaz Dadpour ◽  
...  
Keyword(s):  
Gene Expression ◽  
Real Time ◽  
Chronic Periodontitis ◽  
Treg Cells ◽  
Control Group ◽  
Case Group ◽  
Expression Index ◽  
Tissue Samples ◽  
Crown Length ◽  
Periodontal Inflammation

Background. The present study aimed to determine the association between periodontal disease and the Th17/Treg balance by examining the genetic expression of IL-17 and TGF-β, which influence incidence and suppression of inflammation. Methods. In this case-control study, samples were collected in a randomized and task-oriented order. Thirty-seven patients referred to professional periodontology clinics in Mashhad and the Periodontology Department of the Mashhad Dentistry Faculty for periodontal (case) or crown-length (control) surgery was enrolled. IL-17 and TGF-β gene expression indices were measured in tissue samples by real-time polymerase chain reaction. Results. The IL-17 gene expression index was higher in the case group (2.68±0.91) than in the control group (1.68±0.41), but this difference was not significant. The TGF-β gene expression index was significantly higher in the case group (54.42±7.88) than in the control group (24.12±3.38). Conclusion. L-17 and TGF-β expression is increased in chronic periodontitis patients, but TGF-β plays a more important role in periodontal inflammation in patients with chronic periodontitis. Further studies of the roles of Th17 and Treg cells are warranted.

scholarly journals Molecular survey on Merkel cell polyomavirus in patients with colorectal cancer

2018 ◽  
Vol 27 (4) ◽  
pp. 229-36
Author(s):  
Mohammad Hadi Karbalaie Niya ◽  
Fahimeh Safarnezhad Tameshkel ◽  
Mahdi Alemrajabi ◽  
Mahsa Taherizadeh ◽  
Mohsen Keshavarz ◽  
...  
Keyword(s):  
Colorectal Cancer ◽  
Real Time ◽  
Ffpe Tissue ◽  
Merkel Cell Polyomavirus ◽  
Control Group ◽  
Case Group ◽  
Sample Type ◽  
Merkel Cell ◽  
Retrospective Case ◽  
Tissue Samples

Background: Merkel cell polyomavirus (MCV) has been associated with Merkel cell carcinoma (MCC) in humans, and its role in other human cancers is under investigation. The aim of this study was to investigate MCV genome infection in patients with colorectal cancer (CRC).Methods: This retrospective, case-control study used archived formalin-fixed, paraffin-embedded (FFPE) tissue samples from colorectal cancer patients (cases) and matched healthy subjects (controls) diagnosed by an expert pathologist from hospitals affiliated with Iran University of Medical Sciences, Tehran, Iran from 2011 to 2016. After DNA extraction with a QIAamp® DNA FFPE Tissue Kit, real-time polymerase chain reaction (PCR) was used for diagnosis. A positive control was produced by cloning with the Generay Biotechnology system. SPSS v.22 was used for analysis of demographic variables.Results: There were 157 participants included in the study: 66 were cases and 91 were controls. Their mean ages (±SD) were 59.35±14.48 and 57.21±14.66, respectively. The proportion of males was 57.6% in the case group and 57.1% in the control group. None of the samples were positive for MCV expression by real-time PCR assay. Association was detected between males with CRC and tumor location in the rectum and between males with CRC and the mucinous tumor type.Conclusion: None of the tissues from the CRC or non-cancerous control groups were positive for MCV genome infection, although a low viral load, the sample type, or the method of use should not be neglected. Further studies are recommended to obtain more comprehensive results.

scholarly journals Genes associated with inflammation and bone remodeling are highly expressed in the bone of patients with the early-stage cam-type femoroacetabular impingement

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Guanying Gao ◽  
Ruiqi Wu ◽  
Rongge Liu ◽  
Jianquan Wang ◽  
Yingfang Ao ◽  
...  
Keyword(s):  
Gene Expression ◽  
Bone Tissue ◽  
Bone Remodeling ◽  
Femoroacetabular Impingement ◽  
Early Stage ◽  
Control Group ◽  
Tissue Samples ◽  
Expression Levels ◽  
Normal Bone ◽  
Impingement Zone

Abstract Background Recent studies have shown high expression levels of certain inflammatory, anabolic, and catabolic genes in the articular cartilage from the impingement zone of the hips with femoroacetabular impingement (FAI), representing an increased metabolic state. Nevertheless, little is known about the molecular properties of bone tissue from the impingement zone of hips with FAI. Methods Bone tissue samples from patients with early-stage cam-type FAI were collected during hip arthroscopy for treatment of cam-type FAI. Control bone tissue samples were collected from six patients who underwent total hip replacement because of a femoral neck fracture. Quantitative real-time polymerase chain reaction (PCR) was performed to determine the gene expression associated with inflammation and bone remodeling. The differences in the gene expression in bone tissues from the patients with early-stage cam-type FAI were also evaluated based on clinical parameters. Results In all, 12 patients with early-stage cam-type FAI and six patients in the control group were included in this study. Compared to the control samples, the bone tissue samples from patients with FAI showed higher expression levels of interleukin-6 (IL-6), alkaline phosphatase (ALP), receptor activator of nuclear factor-kB ligand (RANKL), and osteoprotegerin (OPG) (P < 0.05). IL-1 expression was detected only in the control group. On the other hand, there was no significant difference in IL-8 expression between the patients with FAI and the control group. The patients with FAI having a body mass index (BMI) of >24 kg/m2 showed higher ALP expression (P < 0.05). Further, the expression of IL-6 and ALP was higher in the patients with FAI in whom the lateral center-edge angle was >30° (P < 0.05). Conclusions Our results indicated the metabolic condition of bone tissues in patients with early-stage cam-type FAI differed from that of normal bone in the femoral head-neck junction. The expression levels of the genes associated with inflammation and bone remodeling were higher in the bone tissue of patients with early-stage cam-type FAI than in the patients with normal bone tissue.

scholarly journals CHANGES IN GENE EXPRESSION ASSOCIATED WITH NON-CANCER EFFECTS OF THE CHORNOBYL CLEAN-UP WORKERS IN THE REMOTE PERIOD AFTER EXPOSURE

2020 ◽  
Vol 25 ◽  
pp. 456-477
Author(s):  
I. Ilienko ◽  
◽  
D. Bazyka ◽  
N. Golyarnyk ◽  
L. Zvarych ◽  
...  
Keyword(s):  
Gene Expression ◽  
Real Time ◽  
Real Time Pcr ◽  
Main Group ◽  
Control Group ◽  
Chronic Obstructive ◽  
Relative Level ◽  
Gstm1 Gene ◽  
Expression Of Genes ◽  
Immune Inflammation

Objective. to establish the connection of radiation-induced changes in gene expression with the realized pathology of the broncho-pulmonary and cardiovascular systems in Chornobyl clean-up workers. Materials and methods. We examined 314 male Chornobyl clean-up workers (main group; age (58.94 ± 6.82) years (M ± SD); min 33, max 79 years; radiation dose (411.82 ± 625.41) mSv (M ± SD); min 1.74, max 3600 mSv) with various nosological forms of cardiovascular and broncho-pulmonary pathology (BPP) and 50 subjects of the control group: age (50.50 ± 5.73) years (M ± SD); min 41, max 67 years. The relative level of BCL2, CDKN2A, CLSTN2, GSTM1, IFNG, IL1B, MCF2L, SERPINB9, STAT3, TERF1, TERF2, TERT, TNF, TP53, CCND1, CSF2, VEGFA genes expression was determined in peripheral blood leukocytes by real-time PCR (7900 HT Fast Real-Time PCR System (Applied Biosystems, USA)). The «gene-disease» association was determined on statistical models stratified separately for each disease and gene. Logistic regression was used to calculate the odds ratio. Results. Increased GSTM1 gene expression and no changes in angiogenesis-related VEGFA gene expression were found in the main group of patients with coronary heart disease (CHD). It was established overexpression of TP53, VEGF and IFNG genes in the group of patients with arterial hypertension (AH). At combination of these diseases an increase of expression of СSF2, TERF1, TERF2 genes was established. The detected changes demonstrate an activation of the antioxidative defense system in patients with CHD, while AH is associated with the expression of genes of angiogenesis and immune inflammation. It was shown an increase in the expression of genes associated with apoptosis and kinase activity (BCL2, CLSTN2, CDKN2), immune inflammation (CSF2, IL1B, TNF) in Chornobyl clean-up workers with BPP. Expression of TP53 and GSTM1 (gene, associated with the glutathione system) was significantly upregulated in the group of individuals with chronic bronchitis, whereas in patients with chronic obstructive pulmonary disease, no increase was detected; the expression of SERPINB9 and MCF2L genes was downregulated. Conclusions. Changes in the expression of genes, associated with the development of somatic pathology in the remote period after irradiation, in particular the genes of the immune response and inflammatory reactions CSF2, IFNG, IL1B, TNF; expression of genes that regulate cell proliferation, aging and apoptosis TP53, BCL2, MCF2L, CDKN2A, SERPINB9, TERF1, TERF2, TERT; genes that regulate cell adhesion and angiogenesis CLSTN2, VEGF. Key words: gene expression, somatic pathology, radiation, Chornobyl.

scholarly journals Safety Assessment of the Auto Manipulation Device for Acupuncture in Sprague-Dawley Rats: Preclinical Evaluation of the Prototype

2018 ◽  
Vol 2018 ◽  
pp. 1-9
Author(s):  
Geng-Hao Liu ◽  
Meng-Yen Tsai ◽  
Gwo-Jyh Chang ◽  
Chao-Min Wu ◽  
Sheng-Kai Lin ◽  
...  
Keyword(s):  
Real Time ◽  
Muscle Tissue ◽  
Safety Issue ◽  
Laboratory Data ◽  
Needle Insertion ◽  
Control Group ◽  
Sprague Dawley ◽  
Tissue Samples ◽  
Physiological Functions ◽  
Whole Process

Background. The Auto Manipulation Device for Acupuncture (AMDA) is designed for providing stable, quantified effects and higher frequency when doing lifting and thrusting manipulation. The purpose of this study is to investigate the safety of manipulation by AMDA in different frequency and duration in healthy rats. Methods. The study was divided into two parts: single intervention and once a day for a week. 12 rats and 15 rats were randomly allocated to different groups: Control (needle insertion only), AMDA (2Hz/10Mins), AMDA (2Hz/20Mins), AMDA (20Hz/10Mins), and AMDA (20Hz/20Mins) for single and repeated interventions. Real-time physiological functions, laboratory data, and the bilateral muscle tissue of acupoint (ST 36) were obtained after the intervention. Results. We found neither real-time physiological functions nor laboratory data differences between control group and AMDA groups in both parts. In the muscle tissue samples, the slight damage had been observed in the AMDA group with a frequency of 2 Hz for 20 minutes after once intervention, and the repeated session groups noted more obvious tissue damage with fibrotic change. Although the period was shorter, higher frequency manipulation caused more damage that fibroblast nuclei became more slender and obvious. However, no significant adverse effect was noted such as crippled and molting in the whole process. Conclusion. Our study suggested that the safety issue of AMDA operation in rats is feasible because there was no difference between control group and AMDA groups among real-time physiological functions and laboratory data. However, manipulation with higher frequency should be more preserved.

scholarly journals Association between Chronic Periodontitis and Oral/Oropharyngeal Cancer

2016 ◽  
Vol 27 (3) ◽  
pp. 261-266 ◽  
Author(s):  
Renata Costa de Moraes ◽  
Fernando Luiz Dias ◽  
Carlos Marcelo da Silva Figueredo ◽  
Ricardo Guimarães Fischer
Keyword(s):  
Oral Cavity ◽  
Chronic Periodontitis ◽  
Oropharyngeal Cancer ◽  
Risk Indicators ◽  
Control Group ◽  
Case Group ◽  
Pocket Depth ◽  
Clinical Attachment Loss ◽  
Probing Pocket Depth ◽  
Significant Difference

Abstract The aim of this case control study was to assess the association between the extent and severity of chronic periodontitis and oral cavity and/or oropharyngeal cancer. The case group comprised 35 patients (mean age 56.1±8.4), diagnosed for oral and/or oropharyngeal cancer. The control group comprised 40 individuals (mean age 55.4±9.4) without diagnostic of cancer. All individuals were subjected to a periodontal examination, including bleeding on probing, plaque index, gingival index, probing pocket depth (PPD), clinical attachment loss (CAL), and decayed, extracted and filled teeth index (DMFT). The case group had significantly more sites with plaque. GI and BOP had similar values in both groups. The median PPD and CAL values were significantly higher for the case group. Chronic generalized periodontitis was predominant in 80% of patients with oral and/or oropharyngeal cancer. Eighty nine percent of the patients in the case group presented severe chronic periodontitis. There was no significant difference between groups for median values of DMFT. The extent and severity of chronic periodontitis remained as risk indicators for oral cavity and/or oropharyngeal cancer even after the adjustments for traditional confound factors, i.e. smoking and alcohol consumption.

scholarly journals Effect of Non-Surgical Periodontal Therapy on Superoxide Dismutase Levels in Gingival Tissues of Chronic Periodontitis Patients: A Clinical and Spectophotometric Analysis

2013 ◽  
Vol 34 (5) ◽  
pp. 305-311 ◽  
Author(s):  
Laxmi Sukhtankar ◽  
Anita Kulloli ◽  
Rahul Kathariya ◽  
Sharad Shetty
Keyword(s):  
Superoxide Dismutase ◽  
Chronic Periodontitis ◽  
Inflammatory Cells ◽  
Periodontal Therapy ◽  
Periodontal Pocket ◽  
Gingival Tissue ◽  
Control Group ◽  
Clinical Parameters ◽  
Sod Activity ◽  
Tissue Samples

BACKGROUND: Superoxide dismutase (SOD), an antioxidant acting against superoxide (oxygen radical, O2.-), it is released in inflammatory pathways and causes connective tissue breakdown. Increased SOD activity in inflamed gingiva may indicate increased O2.-radical generation by neutrophils and other inflammatory cells at the diseased site. The aim of the study was to evaluate the effects of non-surgical periodontal therapy (NSPT) on SOD levels in gingival tissues of chronic periodontitis patients.METHODS: Forty subjects: 20 periodontally healthy (Control) and 20 chronic periodontitis (Test); age range 24–55 years were recruited. Gingival tissue samples were collected by excising the inner lining of the periodontal pocket at baseline (prior to non-surgical periodontal therapy) and 2 months post therapy. In controls, tissue samples were obtained immediately after tooth extraction scheduled for orthodontic reasons. Clinical parameters included probing depth, clinical attachment level, gingival index, bleeding index, plaque index. SOD activities were assessed spectrophotometrically at baseline and 2 months post NSPT, results were analysed statistically.RESULTS: At baseline, patients with chronic periodontitis had higher mean SOD activity (2.73 ± 1.36) than the control subjects (1.12 ± 1.13) withp= 0.00003 (p< 0.05). At 2 months post NSPT median SOD level (1.00) had come close to median SOD value of control group (0.85);p= 0.99 (p> 0.05). The resolution of inflammation with successful NSPT resulted in decreased SOD levels as in control group. Clinical parameters in patients with chronic periodontitis showed a significant improvement 2 months post NSPT (p< 0.05).CONCLUSION: Non-surgical periodontal therapy significantly improves the clinical parameters and restores previously increased SOD levels to normal in chronic periodontitis patients.

scholarly journals Evaluation of GNMT Gene Expression in Prostate Cancer Tissues using Real-Time PCR

2021 ◽  
Author(s):  
Niloofar Dehghani ◽  
Masoud Salehipour ◽  
Babak Javanmard
Keyword(s):  
Gene Expression ◽  
Prostate Cancer ◽  
Benign Prostatic Hyperplasia ◽  
Real Time ◽  
Real Time Pcr ◽  
Prostatic Hyperplasia ◽  
Expression Level ◽  
P Value ◽  
Cancer Tissue ◽  
Tissue Samples

Introduction: Prostate cancer is the second most common cancer and the leading cause of cancer-related deaths worldwide. In the present study, the expression level of glycine N-methyl transferase gene (GNMT) was investigated in prostate cancer tissue. The GNMT enzyme is encoded by the GNMT gene. Increased GNMT gene expression increases the conversion of glycine to sarcosine and results in the elevated levels of sarcosine in blood and urine. Methods: The expression level of GNMT gene in tissue samples of patients with prostate cancer was compared with those with benign prostatic hyperplasia using Real-Time PCR technique. Results: The GNMT gene expression level increased significantly in prostate cancer patients compared with those with benign prostatic hyperplasia (p-value <0.001). In addition, the expression level of GNMT gene was stage-dependent and  significant increases were observed in all stages of prostate cancer compared with those with benign prostatic hyperplasia (p-value <0.001). Conclusion: The concentration of sarcosine is controlled by GNMT and it seems that increasing the expression level of GNMT gene increases the level of sarcosine concentration. Thus, it appears that increased levels of GNMT expression occur in the early stages of prostate cancer. Therefore, periodic measurement of GNMT expression levels can detect prostate cancer before it forms a cancer cell and invades other tissues.

Evaluation of Association between Perceived Stress, Anxiety, Depression, Salivary Alpha-Amylase and Salivary Cortisol with Chronic Periodontitis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Fereidooni M ◽  
◽  
Nouri P ◽  
Faramarzi M ◽  
Sadeghi S ◽  
...  
Keyword(s):  
Salivary Cortisol ◽  
Chronic Periodontitis ◽  
Alpha Amylase ◽  
Anxiety And Depression ◽  
Control Group ◽  
Case Group ◽  
Depression And Anxiety ◽  
The Mean ◽  
The Difference ◽  
Mean Concentration

Introduction: Chronic Periodontitis is a multifactorial inflammatory disease, which is caused by certain series of bacteria in oral biofilm and leads to teeth supporting tissue destruction. Stress, depression and anxiety can affect periodontium health through variable different mechanisms. Cortisol is secreted from adrenocorticotropic glands in pituitary gland and can be used as index to determine psychological stress rate. Alpha-amylase is an salivary gland enzyme which is regulated through sympatric nervous system. The aim of the following study is to compare between different biomarkers related to the emotional stress, anxiety and depression in saliva and their role on periodontal health and also the correlation between periodontal parameters, stress, depression and anxiety. Method: 90 patients with age ranged from 35 to 45 years were participated in the study. Salivary cortisol and alpha-amylase levels were measured in them. Levels of Stress, Anxiety and Depresion were evaluated using questionnaires. The relationship between psychological and biochemical factors with chronic Periodontitis were assessed. The results were analyzed by statistical analysis. Results: The mean concentration of salivary cortisol was 7.87±4.37 ng/ml in the case group and 4.33±2.11 ng/ml in the control group. The difference was statistically significant (p<0.001). The mean concentration of salivary alphaamylase was 3569.27±101.22 U/L in the case group and 3343.44±171.09 U/L in the control group. The difference was statistically significant (p<0.001). The mean stress score was 24.28±3.09 in the case group and 22.96±3.61 in the control group. The difference between two groups was statistically significant (p<0.001). The difference between two groups was statistically significant (p<0.001). The mean anxiety score was 44.11±4.59 in the case group and 36.47±4.30 in the control group, which was statistically significant (p<0.001). The mean depression score was 19.96±3.58 in the case group and 13.13±3.91 in the control group. The difference between two groups was statistically significant (p<0.001). Conclusion: The findings of these study showed that psychological factors like emotional stress, depression and anxiety and biochemical factors including salivary cortisol and alpha-amylase are higher in patients with moderate to severe chronic periodontitis in comparison to healthy people. also Anxiety and depression are stronger predictors of periodontitis than acute stress and cortisol.

Vitamin D Receptor Gene Polymorphism as a Risk Factor for Chronic Periodontitis

2021 ◽  
Author(s):  
Nurlindah Hamrun ◽  
Muhammad Ruslin ◽  
Erni Marlina ◽  
Sri Oktawati ◽  
Takashi Saito ◽  
...  
Keyword(s):  
Vitamin D ◽  
Risk Factor ◽  
Gene Polymorphism ◽  
Vitamin D Receptor ◽  
Chronic Periodontitis ◽  
Control Group ◽  
Case Group ◽  
Vdr Gene ◽  
Vdr Gene Polymorphism ◽  
Vdr Gene Polymorphisms

Abstract Background: The aim of this study was to investigate vitamin D receptor (VDR) gene polymorphism as a risk factor associated with chronic periodontitis (CP) and to determine the effect of VDR gene polymorphism on phenotypic CP.Methods: This study is a case-control design that included 162 adults divided into two groups: patients with CP (case group) and patients without CP (control group). Venous blood and DNA were obtained from individual samples. The gene polymorphism was determined using Restricted Fragment Length Polymorphism-Polymerase Chain Reaction (RFLP-PCR) and DNA sequencing to identify endonuclease restrictions in exon 9 (TaqI). The data were analyzed using an independent t-test and Fisher’s exact test. The odds ratio (OR) was used to calculate the risk of VDR gene polymorphism in CP. Results: VDR gene polymorphism was detected in patients with CP and a TT genotype (86.4%), Tt genotype (12.4%), and tt genotype (1.2%). The case group with TT and Tt genotypes had an OR of 12.5 (95% CI:1.6–99.8) of having CP compared to the control group (P<0.05).Conclusions: VDR gene polymorphisms (the TT and Tt genotypes) are risk factors associated with individual susceptibility to CP.

Comparison of PLGA/Fibrin and PLGA/Hyaluronic Acid Scaffolds for Chondrogenesis of Human Adipose-Derived Stem Cells

2020 ◽  
Author(s):  
Zeinolabedin Sharifian ◽  
Batool Hashemibeni ◽  
Majid Pourentezari ◽  
Ali Valiani ◽  
Mohammad Mardani ◽  
...  
Keyword(s):  
Gene Expression ◽  
Tissue Engineering ◽  
Stem Cells ◽  
Hyaluronic Acid ◽  
Real Time ◽  
Cartilage Regeneration ◽  
Type Ii Collagen ◽  
Control Group ◽  
Adipose Derived Stem Cells ◽  
X Gene

Background and Aims: Tissue engineering is a relatively novel field that has been intensely developing during recent years and has shown to be excessively promising when used for cartilage regeneration. Scaffolds represent important components for tissue engineering. Materials and Methods: The Poly Lactic-Co-Glycolic Acid (PLGA) impregnated with fibrin and hyaluronic acid (HA) produce hybrid scaffolds. human adipose-derived stem cells (hADSCs) were seeded in scaffolds and cultured in chondrogenic media. The viability of cells in different groups was assessed by MTT. The expression of chondrogenic related genes [Sox9, type II collagen (Col II), Aggrecan(AGG)] and type X collagen (Col X) was quantified by real-time polymerase chain reaction. Results: The results of the real-time PCR showed SOX9, AGG and Col X gene expression in the control groups being significantly lower than the other groups (p≤0.05). It also demonstrated Col II gene expression in the control group being significantly lower than the PLGA/Fibrin and PLGA/Fibrin/HA groups (p≤0.05). The Col X gene expression of cells in PLGA/HA and PLGA/Fibrin/HA groups significantly decreased in comparison with the PLGA/Fibrin group (p≤0.05). Conclusions: These conclusions indicate that administration of PLGA/ Fibrin and PLGA/HA scaffolds, particularly PLGA/Fibrin/ HA, motivates chondrogenesis in hADSCs. This can be diminished by decreasing hypertrophic markers and increasing characteristic markers of hyaline cartilage.

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