scholarly journals Validation of a Novel Modified Aptamer-Based Array Proteomic Platform in Patients with End-Stage Renal Disease

Diagnostics ◽  
2018 ◽  
Vol 8 (4) ◽  
pp. 71 ◽  
Author(s):  
Zhongji Han ◽  
Zhousheng Xiao ◽  
Kamyar Kalantar-Zadeh ◽  
Hamid Moradi ◽  
Tariq Shafi ◽  
...  
Keyword(s):  
Renal Disease ◽  
End Stage Renal Disease ◽  
Pearson Correlation ◽  
Fibroblast Growth Factor 23 ◽  
Specific Antigen ◽  
Enzyme Linked Immunosorbent Assay ◽  
Fgf Receptor ◽  
Males And Females ◽  
Stage Renal Disease ◽  
End Stage

End stage renal disease (ESRD) is characterized by complex metabolic abnormalities, yet the clinical relevance of specific biomarkers remains unclear. The development of multiplex diagnostic platforms is creating opportunities to develop novel diagnostic and therapeutic approaches. SOMAscan is an innovative multiplex proteomic platform which can measure >1300 proteins. In the present study, we performed SOMAscan analysis of plasma samples and validated the measurements by comparison with selected biomarkers. We compared concentrations of SOMAscan-measured prostate specific antigen (PSA) between males and females, and validated SOMAscan concentrations of fibroblast growth factor 23 (FGF23), FGF receptor 1 (FGFR1), and FGFR4 using Enzyme-Linked immunosorbent assay (ELISA). The median (25th and 75th percentile) SOMAscan PSA level in males and females was 4304.7 (1815.4 to 7259.5) and 547.8 (521.8 to 993.4) relative fluorescence units (p = 0.002), respectively, suggesting biological plausibility. Pearson correlation between SOMAscan and ELISA was high for FGF23 (R = 0.95, p < 0.001) and FGFR4 (R = 0.69, p < 0.001), indicating significant positive correlation, while a weak correlation was found for FGFR1 (R = 0.13, p = 0.16). In conclusion, there is a good to near-perfect correlation between SOMAscan and standard immunoassays for FGF23 and FGFR4, but not for FGFR1. This technology may be useful to simultaneously measure a large number of plasma proteins in ESRD, and identify clinically important prognostic markers to predict outcomes.

scholarly journals Analysis of Endocan Levels in Hypertensive Patients as Risk Factors of Chronic Kidney Disease

2020 ◽  
Vol 27 (1) ◽  
Author(s):  
Suryani Jamal ◽  
Uleng Bahrun ◽  
Ibrahim Abdul Samad ◽  
Fitriani Mangarengi ◽  
Hasyim Kasim ◽  
...  
Keyword(s):  
Renal Disease ◽  
End Stage Renal Disease ◽  
Stage Ii ◽  
University Hospital ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Elisa Method ◽  
Cross Sectional ◽  
Stage Renal Disease ◽  
End Stage

This study aimed to analyze endocan levels as a marker of endothelial dysfunction in the control group, patients withstage I hypertension, stage II hypertension, and patients with end-stage renal disease. Endocan levels were measured withESM-1 (endocan) kit by Enzyme-Linked Immunosorbent Assay (ELISA) method. This study used a cross-sectional methodand was conducted in Dr. Wahidin Sudirohusodo Hospital, Makassar and Hasanuddin University Hospital from Septemberto October 2017. There were 83 samples in this study, consisting of 12 samples in the control group, 22 samples of stage Ihypertension, 28 samples of stage II hypertension, and 21 samples of end-stage renal disease aged 20-90 years old. Thisstudy showed significantly higher endocan levels in patients with stage II hypertension and end-stage renal disease(p< 0.05). Endocan levels were significantly higher (p<0.05) in patients with end-stage renal disease compared with thecontrol group and patients with stage I hypertension; but not significantly higher (p > 0.05) compared to patients with stageII hypertension. Also, the median of endocan levels in patients with the end-stage renal disease was higher (309,850 ng/L)compared to patients with stage II hypertension (273,050 ng/L).

Immunodiagnosis and molecular validation of Toxoplasma gondii infection among patients with end-stage renal disease undergoing haemodialysis

Parasitology ◽  
2019 ◽  
Vol 146 (13) ◽  
pp. 1683-1689 ◽  
Author(s):  
Zahra Arab-Mazar ◽  
Shirzad Fallahi ◽  
Davood Yadegarynia ◽  
Amirreza Javadi Mamaghani ◽  
Seyyed Javad Seyyed Tabaei ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Renal Disease ◽  
End Stage Renal Disease ◽  
Immunoglobulin M ◽  
Enzyme Linked Immunosorbent Assay ◽  
Healthy Controls ◽  
Blood Samples ◽  
Igm Antibodies ◽  
Stage Renal Disease ◽  
End Stage

AbstractInfection is a significant cause of morbidity and mortality in patients with chronic kidney disease, especially who were under dialysis due to their depressed immunity. Toxoplasma gondii is a ubiquitous parasite that causes severe manifestations in immunocompromised patients. This case-control study was conducted to the immunodiagnosis and molecular validation of T. gondii infection among patients with end-stage renal disease undergoing haemodialysis. The study population consisted of 260 haemodialysis patients and 259 healthy controls referred to the main dialysis centres of Tehran, Iran during 2016. Anti-T. gondii immunoglobulin G (IgG) and immunoglobulin M (IgM) antibodies were assessed using enzyme-linked immunosorbent assay. As well, the T. gondii genomic DNA in whole blood samples of IgM-positive patients and healthy controls was evaluated using GRA6-polymerase chain reaction (PCR) and SAG1-loop-mediated isothermal amplification (LAMP) assays. The anti-T. gondii IgG and IgM antibodies were detected in 175 (67.3%) and 18 (7%) of haemodialysis patients and 122 (47%) and 4 (1.5%) of controls, respectively. Two of the 18 blood samples from IgM-positive patients and none of the IgM-positive control subjects were positive by GRA6-PCR. Whereas, nine and two blood samples of IgM-positive patients and controls were positive for Toxoplasma DNA by a SAG1-LAMP technique respectively. The seropositivity of the Toxoplasma IgM antibody was significantly different between haemodialysis patients and healthy controls which was confirmed by PCR and LAMP. The higher prevalence of T. gondii infection in haemodialysis patients compared with the controls proposes that these patients can be a group at risk for toxoplasmosis and screening for toxoplasmosis before dialysis is necessary for the patients.

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