scholarly journals Diagnosis of inflammatory peri-implant diseases using an immunochromatographic assay for calprotectin in peri-implant crevicular fluid

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Rie Kido ◽  
Jun-ichi Kido ◽  
Yasufumi Nishikawa ◽  
Eijiro Sakamoto ◽  
Yoritoki Tomotake ◽  
...  
Keyword(s):  
Operating Characteristic ◽  
Inflammatory Marker ◽  
Diagnostic System ◽  
Diagnostic Methods ◽  
Enzyme Linked Immunosorbent Assay ◽  
Roc Curve Analysis ◽  
Implant Placement ◽  
Probing Depth ◽  
Crevicular Fluid ◽  
The Relationship

Abstract Background The incidence rate of peri-implant diseases is increasing with implant placement. Early detection of peri-implant diseases is important to prevent and treat these diseases, and a simple and objective diagnostic method is expected. Immunochromatographic (IC) assays are used for rapid diagnostic methods for some diseases. The aim of this clinical study was to determine the amount of calprotectin, an inflammatory marker, in peri-implant crevicular fluid (PICF) using an IC chip, and estimate the possibility of this diagnostic system. Methods Forty-six individuals with dental implants participated in a pilot study. PICF samples were collected from the peri-implant sites with or without inflammation after clinical examinations including probing depth (PD), bleeding on probing (BOP) and gingival index (GI). Calprotectin in PICF was determined by an IC chip and enzyme-linked immunosorbent assay (ELISA) for calprotectin. The density of calprotectin line on the IC chip was measured using an IC reader (IC reader value). The relationship between IC reader value and ELISA value or clinical parameters was investigated. A receiver operating characteristic (ROC) curve analysis of IC reader value of calprotectin was performed to predict inflammation in peri-implant diseases. Results IC reader value of calprotectin was significantly correlated with its ELISA value and PD. IC reader values of calprotectin in PICF samples from periodontal sites with GI-1 and GI-2, and with BOP-positive sites were significantly higher than those of PICF samples from GI-0 sites, and BOP-negative sites, respectively. The IC reader value for calprotectin in PICF samples from inflammatory diseased sites was significantly higher than that of non-diseased sites. ROC analysis suggested that the IC reader value of PICF calprotectin was useful for predicting inflammatory peri-implant diseases. Conclusion IC assay for PICF calprotectin may be a possible system for diagnosing the inflammatory peri-implant diseases.

scholarly journals Gingival Crevicular Fluid Calprotectin, Osteocalcin and Cross-Linked N-Terminal Telopeptid Levels in Health and Different Periodontal Diseases

2011 ◽  
Vol 31 (6) ◽  
pp. 343-352 ◽  
Author(s):  
Sema Becerik ◽  
Beral Afacan ◽  
Veli Özgen Öztürk ◽  
Harika Atmaca ◽  
Gülnur Emingil
Keyword(s):  
Healthy Subjects ◽  
Gingival Crevicular Fluid ◽  
Periodontal Diseases ◽  
Inflammatory Marker ◽  
Aggressive Periodontitis ◽  
Enzyme Linked Immunosorbent Assay ◽  
Probing Depth ◽  
Crevicular Fluid ◽  
First Time

Aim:The aim of the present study was to investigate gingival crevicular fluid (GCF) calprotectin, osteocalcin and cross-linked N-terminal telopeptide (NTx) levels in health along with different periodontal diseases.Material and methods:Twenty chronic periodontitis (CP), 20 generalized aggressive periodontitis (G-AgP), 20 gingivitis and 20 healthy subjects were included. Probing depth, clinical attachment level, plaque index and papillary bleeding index was recorded. GCF calprotectin, osteocalcin and NTx levels were analyzed by enzyme-linked immunosorbent assay (ELISA).Results:CP, G-AgP and gingivitis groups had higher GCF calprotectin total amount compared to healthy subjects (p< 0.008). CP and G-AgP groups had similar, but higher levels compared to gingivitis groups (p< 0.008). CP and G-AgP groups had lower GCF osteocalcin total amount compared to gingivitis and healthy groups (p< 0.008). CP group had higher GCF NTx but lower osteocalcin total amount and osteocalcin/NTx ratio than the G-AgP group (p< 0.008)Conclusions:Our results suggest that elevated GCF calprotectin levels play a role as a reliable inflammatory marker in the pathogenesis of periodontal disease. Fluctuating GCF levels of osteocalcin and NTx might point out to the abnormal bone turnover in periodontitis. Our data document for the first time the role of NTx in the pathogenesis of different periodontal diseases.

Optimization of the dental implantation protocol in patients with partial secondary edentulousness and vitamin D deficiency

2021 ◽  
pp. 22-26
Author(s):  
L. Yu. Ostrovskaya ◽  
N. В. Zakharova ◽  
A. V. Lysov ◽  
Т. S. Kochkonyan ◽  
D. A. Domenyuk
Keyword(s):  
Vitamin D ◽  
Local Effect ◽  
Immune Defense ◽  
Enzyme Linked Immunosorbent Assay ◽  
Implant Placement ◽  
Dental Implantation ◽  
Cell Proliferation And Differentiation ◽  
Th 17 ◽  
Commercial Kits ◽  
Crevicular Fluid

Relevance. The processes of osseointegration in the area of dental implant placement are accompanied by the development of reactions associ-ated with inflammation and activation of local immune processes in peri-implant tissues. Vitamin D preparations can have a significant local effect on the cells of the innate immune defense of the periodontal tissues.The aim of this work is to study the effectiveness of local application of vitamin D on the immune status of the peri-implant sulcus in rehabilitation of patients with partial secondary edentulous and chronic periodontitis by the method of dental implantation.Materials and methods. Determination of the content of biomarkers (IL-1RA, MCP-1, VEGF, TGF-β1, sTNFR) in the crevicular fluid before the installation of implants and the peri-implantation furrow fluid was carried out by the method of enzyme-linked immunosorbent assay using commercial kits «Vector Best» reagents after 3 and 6 months after surgery. The assessment of the state of the bone tissue was carried out using the Orthopantomograph tm OP300 apparatus (KAVO Dental, Germany). Vitamin D has been used topically at a therapeutic dosage.Results. Vitamin D, by reducing Th-1 and Th-17 cell proliferation and differentiation, blocks the activity of the immune-inflammatory process that occurs during implant placement.Conclusion. Application of colecalciferol in patients with moderate periodontitis leads to the activation of the production of immunoregulatory cyto-kines by the cellular structures of the peri-implantation furrow and can be used in combination with the traditional protocol in this category of patients.

Serum diiodotyrosine—a biomarker to differentiate destructive thyroiditis from Graves’ disease

2021 ◽  
Author(s):  
Naoya Fujita ◽  
Yosuke Ono ◽  
Azusa Sano ◽  
Motohiro Kimata ◽  
Seigo Oyama ◽  
...  
Keyword(s):  
Roc Curve ◽  
Operating Characteristic ◽  
Cross Sectional Study ◽  
Curve Analysis ◽  
Diagnostic Methods ◽  
Graves Disease ◽  
Roc Curve Analysis ◽  
Cross Sectional ◽  
Chromatography Tandem Mass Spectrometry ◽  
Liquid Chromatography Tandem Mass

Objective: Conventional diagnostic methods are limited in their ability to differentiate destructive thyroiditis from Graves’ disease. We hypothesised that serum diiodotyrosine (DIT) and monoiodotyrosine (MIT) levels could be biomarkers for differentiating destructive thyroiditis from Graves’ disease. Design: Patients with destructive thyroiditis (n = 13) and Graves’ disease (n = 22) were enrolled in this cross-sectional study. Methods: We assayed the serum DIT and MIT levels using liquid chromatography-tandem mass spectrometry. A receiver operating characteristic (ROC) curve analysis was used to determine the sensitivity and specificity of the serum DIT and MIT levels as biomarkers for differentiating destructive thyroiditis from Graves’ disease. Results: The serum DIT and MIT levels were significantly higher in patients with destructive thyroiditis than in those with Graves’ disease. The ROC curve analysis showed that the serum DIT levels (≥ 359.9 pg/mL) differentiated destructive thyroiditis from Graves’ disease, significantly, with 100.0% sensitivity and 95.5% specificity (P < .001). The diagnostic accuracy of the serum MIT levels (≥119.4 pg/mL) was not as high as that of the serum DIT levels (sensitivity, 84.6%; specificity, 77.3%; P = .001). Conclusions: The serum DIT levels may serve as a novel diagnostic biomarker for differentiating destructive thyroiditis from Graves’ disease.

Prospective investigation of the relationship between dorsal tilt, carpal malalignment, and capitate shift in distal radial fractures

2020 ◽  
Vol 102-B (1) ◽  
pp. 137-143
Author(s):  
Rachel Dias ◽  
Nick A. Johnson ◽  
Joseph J. Dias
Keyword(s):  
Operating Characteristic ◽  
Distal Radial Fracture ◽  
Radial Fracture ◽  
Roc Curve Analysis ◽  
Distal Radial Fractures ◽  
Initial Radiograph ◽  
Interval Linear ◽  
Adverse Influence ◽  
The Relationship ◽  
Prospective Investigation

Aims Carpal malalignment after a distal radial fracture occurs due to loss of volar tilt. Several studies have shown that this has an adverse influence on function. We aimed to investigate the magnitude of dorsal tilt that leads to carpal malalignment, whether reduction of dorsal tilt will correct carpal malalignment, and which measure of carpal malalignment is the most useful. Methods Radiographs of patients with a distal radial fracture were prospectively collected and reviewed. Measurements of carpal malalignment were recorded on the initial radiograph, the radiograph following reduction of the fracture, and after a further interval. Linear regression modelling was used to assess the relationship between dorsal tilt and carpal malalignment. Receiver operating characteristic (ROC) analysis was used to identify which values of dorsal tilt led to carpal malalignment. Results A total of 250 consecutive patients with 252 distal radial fractures were identified. All measures of carpal alignment were significantly associated with dorsal tilt at each timepoint. This relationship persisted after adjustment for age, sex, and the position of the wrist. Capitate shift consistently had the strongest relationship with dorsal tilt and was the only parameter that was not influenced by age or the position of the wrist. ROC curve analysis identified that abnormal capitate shift was seen with > 9° of dorsal tilt. Conclusion Carpal malalignment is related to dorsal tilt following a distal radial fracture. Reducing the fracture and improving dorsal tilt will reduce carpal malalignment. Capitate shift is easy to assess visually, unrelated to age and sex, and appears to be the most useful measure of carpal malalignment. The aim during reduction of a distal radial fracture should be to realign the capitate with the axis of the radius and prevent carpal malalignment. Cite this article: Bone Joint J 2020;102-B(1):137–143

scholarly journals Comparative study between ECL and ELISA to determine the reliable range of Estradiol in the treatment of infertility

Bionatura ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 1352-1355
Author(s):  
Ali Sadeghitabar ◽  
Narges Maleki ◽  
Maryam Armand ◽  
Nasiri Reza
Keyword(s):  
Human Subjects ◽  
Pearson Correlation ◽  
Diagnostic Methods ◽  
Enzyme Linked Immunosorbent Assay ◽  
P Value ◽  
Vitro Fertilization ◽  
The Relationship ◽  
Different Levels ◽  
Estradiol Concentration

Estradiol is one factor that can alter the outcome of the treatment of infertile couples following the application of in vitro fertilization techniques. Currently, the estradiol level is measured by two diagnostic methods Enzyme-Linked Immunosorbent Assay (ELISA) and Electrochemiluminescence (ECL). Accordingly, this study determines ELISA and ECL's sensitivity and consistency to measure different levels of estradiol and determine its reliable range and provide this information to laboratories and gynecologists. This study is performed on 250 patients of the Avicenna Fertility Center. The data of the study are analyzed in SPSS18 and MiniTab. Consent was obtained for experimentation with human subjects. Pearson correlation coefficient was used to investigate the relationship between these two methods. The results indicated a strong correlation between the two variables ECL and ELISA ( r= 0.735, P-value<0.001). High numbers indicate that the decrease and increase of one variable are proportional to the other variable's fluctuation. This study shows that the results of estradiol obtained from both ECL and ELISA are similar. In the ELISA method, due to the linear values' limitation, samples with estradiol concentration above the highest standard level should be diluted and the dilution coefficient should then be applied.

scholarly journals The relationship between serum triglyceride levels and acute pancreatitis in an animal model and a 14-year retrospective clinical study

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Qiyue Zhang ◽  
Mengbin Qin ◽  
Zhihai Liang ◽  
Huali Huang ◽  
Yongfeng Tang ◽  
...  
Keyword(s):  
Acute Pancreatitis ◽  
Clinical Study ◽  
Operating Characteristic ◽  
Serum Amylase ◽  
Animal Experiments ◽  
Serum Triglyceride ◽  
Pancreatic Injury ◽  
Roc Curve Analysis ◽  
Retrospective Clinical Study ◽  
The Relationship

Abstract Objectives The aim of the current study was to evaluate influence of serum triglyceride levels on the course of acute pancreatitis (AP). Methods Rats models of hypertriglyceridemic were used in animal experiments. Following induction of acute pancreatitis, amylase, and pancreas histological scores were all compared. In addition, in a clinical study, clinical data were collected from 1681 AP patients admitted from 2003 to 2016 who were divided into 4 groups based on their serum triglyceride (TG) levels. The clinical features among these 4 groups were compared, and a receiver operating characteristic (ROC) curve analysis was also performed on TG values to estimate their relationship with severity. Results In animal experiments, the hypertriglyceridemic pancreatitis (HTGP) group had markedly higher serum amylase, and histological scores relative to the other animal groups. In the clinical study, we identified significant differences in gender, age, body mass index (BMI), cost, and incidence of partial complications among the 4 TG-based groups. Importantly, the TG levels on day 3–4 after admission could be used to accurately predict disease severity. Conclusions Hypertriglyceridemia (HTG) can aggravate pancreatic injury, and hypertriglyceridemia patients are more likely to suffer from severe pancreatic injury with a higher possibility of complications. In addition, triglyceride levels are correlated with the severity of AP positively.

scholarly journals Complement C1q as a Potential Biomarker for Obesity and Metabolic Syndrome in Chinese Adolescents

2020 ◽  
Vol 11 ◽  
Author(s):  
Xuelian Yang ◽  
Yanan Ma ◽  
Zhongyi Zhao ◽  
Shihan Zhen ◽  
Deliang Wen
Keyword(s):  
Metabolic Syndrome ◽  
Operating Characteristic ◽  
Area Under The Curve ◽  
Chinese Adolescents ◽  
Trend Test ◽  
Roc Curve Analysis ◽  
Potential Biomarker ◽  
Prevalence Of Obesity ◽  
Complement C1q ◽  
The Relationship

BackgroundComplement C1q (C1q) has been confirmed to be related to obesity, metabolic syndrome (MetS), and its components. However, human data regarding the associations are relatively scarce. This study aimed to investigate associations of C1q with obesity as well as MetS in Chinese adolescents.MethodsA total of 1,191 Chinese adolescents aged 13–18 years were enrolled in this study. The biochemical and anthropometric variables of all the subjects were evaluated using standardized procedures. C1q was measured using the immunoturbidometric assay. The relationship between C1q and obesity or MetS was analyzed using multiple regression analyses.ResultsObesity was more prevalent among participants in the highest tertile than in the lowest tertile of C1q levels. The highest tertile of C1q was related to a greater effect on the risk of MetS, and its trend test was statistically significant. Except for hyperglycemia, the prevalence of other components of MetS significantly increased relative to an increase in C1q tertile. Receiver operating characteristic (ROC) curve analysis of C1q for predicting adolescents with MetS illustrated that the area under the curve (AUC) was 0.82 [95% confidence interval (CI): 0.76, 0.88; P&lt;0.001] in the total population after adjusting for confounders.ConclusionsThis study observed a significantly higher prevalence of obesity and MetS features in adolescents with high C1q. The findings of the current study also reported a significant relationship between C1q levels and MetS components [except for fasting plasma glucose (FPG)] in Chinese adolescents. C1q may represent a biomarker for predicting obesity or MetS in adolescents.

scholarly journals Development of a Measles and Rubella Multiplex Bead Serological Assay for Assessing Population Immunity

2021 ◽  
Author(s):  
Melissa M. Coughlin ◽  
Zachary Matson ◽  
Sun B. Sowers ◽  
Jeffrey W. Priest ◽  
Gaby P. Smits ◽  
...  
Keyword(s):  
Linear Relationship ◽  
Operating Characteristic ◽  
Virus Antigen ◽  
Enzyme Linked Immunosorbent Assay ◽  
Roc Curve Analysis ◽  
Igg Antibody ◽  
Population Immunity ◽  
Nucleoprotein N ◽  
Strong Linear Relationship ◽  
Multiplex Bead

Serosurveys are important tools for estimating population immunity and providing immunization activity guidance. The measles and rubella multiplex bead assay (MBA) offers multiple advantages over standard serological assays and was validated by comparison with the enzyme-linked immunosorbent assay (ELISA) and the measles plaque reduction neutralization (PRN) assay. Results from a laboratory-produced purified measles whole virus antigen MBA (MeV WVAL) correlated better with ELISA and PRN than results from the baculovirus-expressed measles nucleoprotein (N) MBA. Therefore, a commercially produced whole virus antigen (MeV WVAC) was evaluated. Serum IgG antibody concentrations correlated significantly with a strong linear relationship between the MeV WVAC and MeV WVAL MBAs (R=0.962, R2=0.926). IgG concentrations from the MeV WVAC MBA showed strong correlation with PRN titers (R=0.846) with a linear relationship comparable to values obtained with the MeV WVAL MBA and PRN assay (R2=0.716 and R2=0.768, respectively). Receiver-operating characteristic (ROC) curve analysis of the MeV WVAC using PRN titer as the comparator resulted in a seroprotection cutoff of 153 mIU/ml, similar to the established correlate of protection of 120 mIU/ml, with a sensitivity of 98% and a specificity of 84%. IgG concentrations correlated strongly between the rubella WVA MBA and ELISA (R=0.959 and R2=0.919). ROC analysis of the rubella MBA using ELISA as the comparator yielded a cutoff of 9.36 IU/ml, similar to the accepted cutoff of 10 IU/ml for seroprotection, with a sensitivity of 99% and a specificity of 100%. These results support use of the MBA for multi-antigen serosurveys assessing measles and rubella population immunity.

scholarly journals Effect of Non Surgical Periodontal Therapy on Gingival Crevicular Fluid and Serum Visfatin Concentration in Periodontal Health and Disease

2012 ◽  
Vol 32 (6) ◽  
pp. 383-388 ◽  
Author(s):  
N.M. Raghavendra ◽  
A.R. Pradeep ◽  
Rahul Kathariya ◽  
Anuj Sharma ◽  
Nishanth S. Rao ◽  
...  
Keyword(s):  
Chronic Periodontitis ◽  
Gingival Crevicular Fluid ◽  
Inflammatory Marker ◽  
Periodontal Therapy ◽  
Enzyme Linked Immunosorbent Assay ◽  
Serum Samples ◽  
Group 3 ◽  
Group 2 ◽  
Crevicular Fluid ◽  
Group 1

Visfatin is a pleiotropic mediator which acts as growth factor, cytokine, enzyme involved in energy including nicotinamide adenine dinucleotide metabolism and has been recently demonstrated to exert several pro-inflammatory functions. The purpose of this study is to evaluate the Visfatin concentration in gingival crevicular fluid (GCF) and serum in patients with chronic periodontitis, and to evaluate the effect of non-surgical periodontal therapy on the GCF and serum visfatin concentration. 30 subjects (age range: 25 to 52 years) were selected and divided into two groups based on the gingival index, probing depth, periodontal attachment level, and radiologic parameters (bone loss): group 1 (15 subjects with healthy periodontium), group 2 (15 subjects with chronic periodontitis), while, Group 2 patients after 8 weeks of the treatment (scaling and root planning, SRP) constituted group 3. GCF samples (by microcapillary pipettes) and serum samples (by venipuncture) were collected to estimate the levels of Visfatin using enzyme linked immunosorbent assay kit. The mean Visfatin concentration in GCF and serum was observed to be the highest in group 2 and lowest in group 1. While concentration in group 3 was similar to group 1. The concentration of Visfatin in GCF and serum decreased after SRP. The Visfatin concentration in GCF and serum found to be highest in chronic periodontitis group and decreases after treatment. Hence Visfatin values can be considered as an “inflammatory marker” can be explored in future as a potential therapeutic target in the treatment of periodontal disease.

scholarly journals Enzyme-Linked Immunosorbent Assays Based on Neospora caninum Dense Granule Protein 7 and Profilin for Estimating the Stage of Neosporosis

2012 ◽  
Vol 19 (3) ◽  
pp. 411-417 ◽  
Author(s):  
Jun Hiasa ◽  
Maki Nishimura ◽  
Kazuhito Itamoto ◽  
Xuenan Xuan ◽  
Hisashi Inokuma ◽  
...  
Keyword(s):  
Neospora Caninum ◽  
Protozoan Parasite ◽  
Dense Granule ◽  
Acute Stage ◽  
Neurological Symptoms ◽  
Diagnostic Methods ◽  
Enzyme Linked Immunosorbent Assay ◽  
Specific Antibody Response ◽  
Content Type ◽  
The Relationship

ABSTRACTNeospora caninumis an intracellular protozoan parasite that causes bovine and canine neosporosis, characterized by fetal abortion and neonatal mortality and by neuromuscular paralysis, respectively. Although many diagnostic methods to detect parasite-specific antibodies or parasite DNA have been reported, to date no effective serodiagnostic techniques for estimating pathological status have been described. Our study aimed to elucidate the relationship between the parasite-specific antibody response, parasite activation, and neurological symptoms caused byN. caninuminfection by using a recombinant antigen-based enzyme-linked immunosorbent assay. Among experimentally infected mice, anti-N. caninumprofilin (NcPF) antibody was only detected in neurologically symptomatic animals. Parasite numbers within the brains of the symptomatic mice were significantly higher than those in asymptomatic animals. In addition, anti-NcPF and anti-NcGRA7 antibodies were mainly detected at the acute stage in experimentally infected dogs, while anti-NcSAG1 antibody was produced during both acute and chronic stages. Furthermore, among anti-NcSAG1 antibody-positive clinical dogs, the positive rates of anti-NcGRA7 and anti-NcPF antibodies in the neurologically symptomatic dogs were significantly higher than those in the non-neurologically symptomatic animals. Our results suggested that the levels of anti-NcGRA7 and anti-NcPF antibodies reflect parasite activation and neurological symptoms in dogs. In conclusion, antibodies against NcGRA7 and NcPF may have potential as suitable indicators for estimating the pathological status of neosporosis.

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