scholarly journals Serum total adenosine deaminase activity in Nepalese patients with Rheumatoid Arthritis

2013 ◽  
Vol 4 (2) ◽  
pp. 30-35
Author(s):  
N Gautam ◽  
J Archana ◽  
R Kumar ◽  
LI Singh ◽  
RM Sapkota ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Adenosine Deaminase ◽  
Healthy Controls ◽  
Medical Sciences ◽  
Potential Marker ◽  
Diagnostic Potential ◽  
Clinical Scenarios ◽  
Adenosine Deaminase Activity ◽  
Significant Difference ◽  
Reliable Marker

Objective: Several studies indicate that serum adenosine deaminase (ADA) activity could be a potential marker for the diagnosis of patients with rheumatoid arthritis (RA). However, there has been no such study that could independently verify this finding in Nepali population. The present study therefore aims to measure the total ADA activity in the sera of Nepalese RA patients and verify its diagnostic potential. Materials and Methods: A total of 69 RA patients who visited Universal College of Medical Sciences Teaching Hospital (UCMSTH), Bhairahawa, Nepal for their medical treatment were enrolled for this study. An equal number of age and sex-matched healthy controls were also included in the study. Blood samples were collected from each study subjects and analyzed for serum total ADA, Creactive protein (CRP) and rheumatoid factor (RF). Results: Serum total ADA activity was found to be significantly (p<0.0001) higher (30.0 }10.1 U/L) in all RA patients compared to healthy controls (13.5 } 3.6 U/L). However, no significant difference (p>0.05) in the ADA activity was found between the smokers and non-smoker RA patients. Out of total 69 RA patients, only 16 (23.1%) were positive for CRP and 11 (15.9%) were positive for RF. Conclusion: Measurement of serum total ADA activity could be a reliable marker for the diagnosis of RA in Nepali population with relevant clinical scenarios when there is absence of CRP and RF in the serum.  DOI: http://dx.doi.org/10.3126/ajms.v4i2.6208 Asian Journal of Medical Sciences 4(2013) 30-35

scholarly journals 5`-Nukleotidase and adenosine deaminase in patients with rheumatoid arthritis

2017 ◽  
Vol 74 (10) ◽  
pp. 940-946 ◽  
Author(s):  
Nela Zivkovic ◽  
Boris Djindjic ◽  
Sonja Stojanovic ◽  
Ivana Krstic ◽  
Ivana Ciric ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Adenosine Deaminase ◽  
Inflammatory Diseases ◽  
Cell Damage ◽  
Control Group ◽  
Adenosine Deaminase Activity ◽  
Significant Difference ◽  
Post Hoc ◽  
Rheumatoid Arthritis Activity

The essence of rheumatoid arthritis (RA) pathogenesis is inflammation, modification of immune system and cell damage. 5'-nucleotidase (5'-NT) and adenosine deaminase (ADA) have a significant role in the process of inflammation-caused tissue damage. The aim of the paper is to define 5'-nucleotidase and adenosine deaminase activity in serum of patients with rheumatoid arthritis treated with Methotrexate and patients with rheumatoid arthritis who have not been treated with Methotrexate, as well as to determine correlation between the enzymes and disease activity. The research included 160 patients suffering from rheumatoid arthritis, 60 of which have not been treated with Methotrexate (age 56,8; 68,3% female) and 100 patients treated with Methotrexate (age 59,8; 88% female), as well as 60 healthy controls (age 58,8; 66,6% female). Patients suffering from chronic inflammatory diseases, chronic respiratory, cardiac and kidney insufficiency, severe acute diseases and other diseases which might modify inflammatory response were not included in the research. There was no statistically significant difference in 5'-NT values among groups. ADA values were significantly different in all tested groups. Post Hoc analysis (Dunnett T3 test) showed that ADA activity in RA groups were significantly higher as compared to control group (p<0.001), and that ADA in RA group with MTX was significantly smaller as compared to RA group without MTX (p<0.001). There is not significant correlation between the disease activity and activities of tested enzymes. We concluded that adenosine deaminase activity was increased in patients with rheumatoid arthritis, as well as that the application of Methotrexate led to the decrease of this enzyme in the serum of patients with rheumatoid arthritis. Activity of 5'-nucleotidase is not increased in patients with rheumatoid arthritis and did not depend on Methotrexate treatment. Serum adenosine deaminase and 5'-nucleotidase were not good indicators of rheumatoid arthritis activity.

scholarly journals Interleukin-37 as an anti-inflammatory cytokine: does its relation to disease activity suggest its potential role in rheumatoid arthritis therapy?

2021 ◽  
Vol 48 (1) ◽  
Author(s):  
Eman A. Baraka ◽  
Mona G. Balata ◽  
Shereen H. Ahmed ◽  
Afaf F. Khamis ◽  
Enas A. Elattar
Keyword(s):  
Rheumatoid Arthritis ◽  
Disease Activity ◽  
Cross Sectional Study ◽  
Healthy Controls ◽  
Tender Joint ◽  
Cross Sectional ◽  
Reactive Protein ◽  
Significant Difference ◽  
The Mean ◽  
Anti Inflammatory

Abstract Background This study aimed to measure the serum and synovial interleukin (IL)-37 levels in rheumatoid arthritis (RA) patients compared to patients with primary knee osteoarthritis (PKOA) and healthy controls and to detect its relation to RA disease activity. Results This cross-sectional study included 50 RA patients with a mean age of 40.24 ± 8.62 years, 50 patients with PKOA with a mean age of 56.69 ± 4.21, and 40 healthy controls with a mean age of 41.75 ± 7.38 years. The mean serum IL-37 level in the RA patients (382.6 ± 73.97 pg/ml) was statistically significantly (P < 0.001) the highest among the studied groups; however, it showed a non-significant difference between the PKOA patients (70.38 ± 27.49 pg/ml) and the healthy controls (69.97 ± 25.12 pg/ml) (P > 0.94). Both serum and synovial IL-37 levels were significantly positively correlated with disease activity scores (r = 0.92, P< 0.001 and r = 0.85, P < 0.001), tender joint counts (r = 0.83, P < 0.001 and r = 0.82, P < 0.001 ), swollen joint counts (r = 0.72, P < 0.001 and r = 0.60, P < 0.001), visual analog scale (r = 0.82, P < 0.001 and r = 0.82, P < 0.001), erythrocyte sedimentation rate (r = 0.75, P < 0.001 and r = 0.65, P < 0.001), and C-reactive protein (r = 0.93, P < 0.001 and r = 0.79, P < 0.001), respectively. Conclusion Serum and synovial IL-37 were significantly elevated in the RA patients, and they were closely correlated. Being less invasive, the serum IL-37 could be a marker of disease activity and could reflect the effective disease control by drugs. Having an anti-inflammatory effect could not suggest IL-37 as the key player to control inflammation alone, but its combination with other anti-proinflammatory cytokines could be investigated.

Study of serum adenosine deaminase activity and c-reactive protein in patients of rheumatoid arthritis

2020 ◽  
Vol 11 (4) ◽  
pp. 7990-7993
Author(s):  
Sangeetha R ◽  
Ramesh Raju K A P ◽  
Hemapriya S ◽  
Suganthi V ◽  
Panneerselvam P
Keyword(s):  
Rheumatoid Arthritis ◽  
Adenosine Deaminase ◽  
Treatment Plan ◽  
Colorimetric Method ◽  
Disease Score ◽  
C Reactive Protein ◽  
Positive Correlation ◽  
Reactive Protein ◽  
Adenosine Deaminase Activity

Rheumatoid arthritis (RA) is a chronic disease that causes inflammatory synovitis. The treatment plan of RA includes reducing inflammation and improving the quality of life. Hence, understanding the role of Adenosine deaminase (ADA) and C-reactive protein helps for a better plan of treatment. The present study was undertaken to determine the serum ADA activity and CRP in RA patients and correlate with the severity of the progression of the disease. 25 patients diagnosed with RA as per 2010 ACR/EULAR criteria and 25 age and sex matched healthy controls were included in the study after informed consent. Blood samples were collected from all the subjects after an overnight fast, serum separated was analyzed immediately for Adenosine deaminase(ADA) activity measured using colorimetric method of Guisti and Galanti. Disease score, C-reactive protein, RA factor, ADA and ESR were significantly higher in cases when compared with controls. Significant positive correlation was present between the disease score and C-reactive protein, RA factor among cases. A positive correlation was observed between the disease score and ADA, but it was not statistically significant among cases.

scholarly journals The role of albumin-to-globulin ratio in undifferentiated arthritis: Rheumatoid arthritis versus primary Sjögren syndrome

2021 ◽  
Author(s):  
Reyhan Köse Çobanoglu ◽  
Taşkın Şentürk
Keyword(s):  
Rheumatoid Arthritis ◽  
Sjögren Syndrome ◽  
Control Group ◽  
Sjogren Syndrome ◽  
Healthy Controls ◽  
Undifferentiated Arthritis ◽  
Characteristic Analysis ◽  
Primary Sjögren Syndrome ◽  
Significant Difference ◽  
Albumin To Globulin Ratio

Objectives: This study aims to compare initial albumin-to-globulin ratio (AGR) in patients with rheumatoid arthritis (RA) and primary Sjögren syndrome (pSS) presenting with undifferentiated arthritis (UA) and to investigate whether there was a difference in terms of AGR between the two patient groups and healthy controls. Patients and methods: Between January 2019 and December 2019, a total of 177 patients including 96 RA (10 males, 86 females; mean age: 53.6±10.8 years; range, 21 to 74 years) and 81 pSS (5 males, 76 females; mean age: 53.2±14.1 years; range, 23 to 79 years) and 82 healthy controls (20 males, 62 females; mean age: 50.5±13.6 years; range, 20 to 79 years) were included in this case-control study. Demographic characteristics, albumin, and globulin levels of all participants were recorded. The AGR, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), rheumatoid factor (RF), anti-nuclear antibody (ANA), and anti-citrullinated protein antibodies (ACPA) were assessed. Results: The mean AGR was 1.50±0.16 in the control group, 1.48±0.24 in the RA group, and 1.30±0.23 in the pSS group, indicating a significant difference between the pSS and the other two groups (p<0.001). The receiver operating characteristic analysis revealed that the cut-off value for AGR was 1.39 (area under the curve=0.736) with a sensitivity of 0.642 and a specificity of 0.646 (p<0.001). The ESR and CRP values were higher (p<0.001), and ANA (p<0.001) and RF (p=0.003) positivity were lower in the RA group, compared to the pSS group. Conclusion: This study findings indicate that AGR is a helpful tool in the differential diagnosis of RA and pSS presenting with UA at the time of admission, and Sjögren syndrome should be considered in case of AGR ≤1.39.

scholarly journals Association of Leptin Gene Polymorphisms with Rheumatoid Arthritis in a Chinese Population

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Sha-Sha Tao ◽  
Yi-Lin Dan ◽  
Guo-Cui Wu ◽  
Qin Zhang ◽  
Tian-Ping Zhang ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Chinese Population ◽  
Clinical Manifestations ◽  
Enzyme Linked Immunosorbent Assay ◽  
Healthy Controls ◽  
Nucleotide Polymorphisms ◽  
Single Nucleotide ◽  
Genotype Frequencies ◽  
Significant Difference ◽  
Plasma Leptin

Background. Recently, increasing studies have revealed that leptin is involved in the development of rheumatoid arthritis (RA). This study is aimed at exploring the association of leptin gene single nucleotide polymorphisms (SNPs) with susceptibility to RA in a Chinese population. Methods. We recruited 600 RA patients and 600 healthy controls from a Chinese population and analyzed their three leptin SNPs (rs10244329, rs2071045, and rs2167270) using the improved Multiplex Ligase Detection Reaction (iMLDR) assays. The associations of these SNPs with clinical manifestations of RA were also analyzed. Enzyme-linked immunosorbent assay (ELISA) was performed for plasma leptin determination. Results. No significant difference in either allele or genotype frequencies of these three SNPs between RA patients and healthy controls was observed (all P > 0.05 ). Association between the genotype effects of dominant, recessive models was also not found (all P > 0.05 ). No significant difference in plasma leptin levels was detected between RA patients and controls ( P > 0.05 ). Conclusion. Leptin gene (rs10244329, rs2071045, and rs2167270) polymorphisms are not associated with RA genetic susceptibility and its clinical features in the Chinese population.

scholarly journals Investigation of the Correlation between Graves’ Ophthalmopathy and CTLA4 Gene Polymorphism

2019 ◽  
Vol 8 (11) ◽  
pp. 1842 ◽  
Author(s):  
Ding-Ping Chen ◽  
Yen-Chang Chu ◽  
Ying-Hao Wen ◽  
Wei-Tzu Lin ◽  
Ai-Ling Hour ◽  
...  
Keyword(s):  
Gene Polymorphism ◽  
Regulatory Gene ◽  
Genotype Frequency ◽  
Healthy Controls ◽  
Nucleotide Polymorphisms ◽  
Exon 2 ◽  
Graves Ophthalmopathy ◽  
Potential Marker ◽  
Significant Difference ◽  
Ctla4 Gene

Graves’ disease (GD) is an autoimmune inflammatory disease, and Graves’ ophthalmopathy (GO) occurs in 25–50% of patients with GD. Several susceptible genes were identified to be associated with GO in some genetic analysis studies, including the immune regulatory gene CTLA4. We aimed to find out the correlation of CTLA4 gene polymorphism and GO. A total of 42 participants were enrolled in this study, consisting of 22 patients with GO and 20 healthy controls. Chi-square or Fisher’s exact test were used to appraise the association between Graves’ ophthalmopathy and CTLA4 single nucleotide polymorphisms (SNPs). All regions of CTLA4 including promoter, exon and 3’UTR were investigated. There was no nucleotide substitution in exon 2 and exon 3 of CTLA4 region, and the allele frequencies of CTLA4 polymorphisms had no significant difference between patients with GO and controls. However, the genotype frequency of “TT” genotype in rs733618 significantly differed between patients with GO and healthy controls (OR = 0.421, 95%CI: 0.290–0.611, p = 0.043), and the “CC” and “CT” genotype in rs16840252 were nearly significantly differed in genotype frequency (p = 0.052). Haplotype analysis showed that CTLA4 Crs733618Crs16840252 might increase the risk of GO (OR = 2.375, 95%CI: 1.636–3.448, p = 0.043). In conclusion, CTLA4 Crs733618Crs16840252 was found to be a potential marker for GO, and these haplotypes would be ethnicity-specific. Clinical application of CTLA4 Crs733618Crs16840252 in predicting GO in GD patients may be beneficial.

The Serum Level of Agalactosyl IgG in Rheumatoid Arthritis Patients Treated with Methotrexate

1996 ◽  
Vol 9 (1) ◽  
pp. 19-22
Author(s):  
J. K. Lacki ◽  
U. Mackiewicz ◽  
S. Mackiewicz ◽  
W. Muller
Keyword(s):  
Rheumatoid Arthritis ◽  
Serum Level ◽  
Nonsteroidal Antiinflammatory Drugs ◽  
Healthy Controls ◽  
Disease Course ◽  
Antiinflammatory Drugs ◽  
Significant Difference ◽  
One Year ◽  
Agalactosyl Igg

To verify the hypothesis that methotrexate may affect the serum level of agalactosyl IgG (IgG[0]) we followed the changes in IgG galactosylation patterns in a cohort of rheumatoid arthritis patients treated with either methotrexate (MTX) or nonsteroidal antiinflammatory drugs (NSAID). The average values of IgG[0] in RA patients at the beginning of the observation were significantly higher as compared to healthy controls (0.45 ± 0.39 vs. −0.03 ± 0.09, p<0.05). The findings of IgG[0] after one-year follow-up were also higher as compared to healthy controls (0.38 ± 0.39 vs. −0.03 ± 0.09, p<0.05). We did not notice any statistically significant difference in IgG[0] between MTX and NSAID treated patients at the beginning of the study (0.49 ± 0.42 vs. 0.42 ± 0.38, NS). However, during one-year MTX treatment IgG[0] significantly dropped (0.49 ± 0.42 vs. 0.25 ± 0.24, p<0.01). We did not establish any fluctuation in IgG[0] in the group of patients treated with NSAID (0.42 ± 0.38 vs. 0.46 ± 0.45, NS). The data thus far obtained suggest that IgG[0] may serve as an indicator for the disease course in patients with RA. Secondly, the clinical improvement and IgG[0] decrease after methotrexate implies, that the immunoregulatory abnormality in RA may be susceptible to correction by immunotherapy.

scholarly journals THU0024 METHYLATION ANALYSIS OF VITAMIN D SIGNALING PATHWAY GENES IN RHEUMATOID ARTHRITIS PATIENTS

2020 ◽  
Vol 79 (Suppl 1) ◽  
pp. 225.1-225
Author(s):  
E. Punceviciene ◽  
J. Gaizevska ◽  
R. Sabaliauskaite ◽  
L. Venceviciene ◽  
D. Vitkus ◽  
...  
Keyword(s):  
Rheumatoid Arthritis ◽  
Dna Methylation ◽  
Vitamin D ◽  
Vitamin D Deficiency ◽  
Methylation Level ◽  
Methylation Pattern ◽  
Healthy Controls ◽  
Methylation Analysis ◽  
Vitamin D Metabolism ◽  
Significant Difference

Background:Vitamin D is known for its immunomodulatory and epigenome interacting effects. Vitamin D deficiency is frequently observed in rheumatoid arthritis (RA) patients compared to healthy controls, is also named as a potential risk factor in RA ethiopatogenesis and may alter DNA methylation of certain genes [1,2]. Still, causality of vitamin D deficiency in RA patients needs to be elucidated.Objectives:The aim of the study was to evaluate relationship between DNA methylation status of vitamin D related genes (VDR,CYP24A1,CYP2R1), miRNA-155 expression, vitamin D level and its association with RA.Methods:CpG islands in promoter region of theVDR,CYP24A1,CYP2R1genes were chosen for DNA methylation analysis by means of pyrosequencing. DNA from blood mononuclear cells of 31 RA patients and 31 age and sex matched healthy controls was assessed for methylation pattern after informed consent was obtained in Vilnius university Hospital Santaros klinikos Centre of Rheumatology. For miRNA analysis quantitative reverse transcription PCR was used. Chemiluminescent microplate immunoassay was used to asses 25(OH)D serum levels.Results:25(OH)D concentrations varied from deficiency (<50 nmol/l), insufficiency (50-75 nmol/l) to normal range (≥75-100 nmol/l) in RA (mean 47.49 nmol/l; SD ± 27.93) and healthy controls (mean 57.38 nmol/l; SD ± 29.93)).CYP24A1methylation level was significantly higher in comparison toVDR(p<0.0001) andCYP2R1(p<0.0001) genes in both groups.CYP24A1hypermethylation was also observed in older subjects (p=0.012). The study demonstrated a significant positive correlation between vitamin D concentration andVDR,CYP2R1genes methylation intensity (r2=0.31, p=0.014; r2=0.25, p=0.042, respectively). However, gene methylation frequency and methylation intensity showed no significant difference between RA patients and healthy controls (VDR– 2.4vs2.6 %,CYP24A1– 16.6vs15.3 %,CYP2R1– 2.6vs2.6 %) (p>0.05). To note, miRNA-155 expression negatively correlated withCYP24A1methylation intensity (r2=-0.43, p=0.009).Conclusion:Our study identified significant associations between theVDRandCYP2R1promoter methylation and vitamin D concentration. However, no significant differences in DNA methylation pattern between RA patients and healthy controls were detected. MiR-155 expression was associated withCYP24A1methylation level, confirming its possible involvement in vitamin D metabolism. The data of our study suggests that epigenetic phenomena are significantly involved in vitamin D metabolism and may have an indirect effect on RA ethiopatogenesis.References:[1]Jeffery LE, et al. Nat Rev Rheumatol. 2016,12.4:201.[2]Fetahu IS et al. Front Physiol. 2014,5:164.Acknowledgments:This project has received funding from the Research Council of Lithuania (LMTLT), agreement No. S-MIP-17-12.Disclosure of Interests:None declared

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