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Sudová V, Prokop P, Trefil L, Racek J, Rajdl D. Comparison of two methods for dimethylarginines quantification. Pract Lab Med 2024; 39:e00359. [PMID: 38313812 PMCID: PMC10831080 DOI: 10.1016/j.plabm.2024.e00359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 07/10/2023] [Accepted: 01/15/2024] [Indexed: 02/06/2024] Open
Abstract
Objectives Both dimethylarginines are widely bound to chronic kidney disease (CKD). This study was focused to validate published LC-MS/MS method and compared the measured data with an immunoassay. Design and methods The analysis was performed on a Dionex UltiMate 3000 UHPLC-Standard (Thermo Fisher Scientific, Waltham, Massachusetts, USA) with an amaZon SL ion trap (Bruker, Billerica, Massachusetts, USA). Comparison was evaluated by using Passing Bablok regression and Bland Altman plot. Healthy volunteers (n = 40) were used for validation and as control group to patients group (n = 40) with different stages of CKD. Results The results in healthy controls determined by the LC-MS/MS (ELISA) method were 0.52 ± 0.0892 with 95 % CI: 0.49-0.55 (0.61 ± 0.1213 with 95 % CI: 0.57-0.64) μmol/L for AD MA and 0.56 ± 0.0810 with 95 % CI: 0.53-0.58 (0.62 ± 0.0752 with 95 % CI: 0.57-0.65) μmol/L for SDMA. In the same way, the patient group values determined by the LC-MS/MS (ELISA) method were 0.82 ± 0.1604 with 95 % CI: 0.75-0.88 (1.06 ± 0.3002 with 95 % CI: 0.94-1.19) μmol/L and 2.14 ± 0.8778 with 95 % CI: 1.47-2.58 (1.65 ± 0.5160 with 95 % CI: 1.40-1.98) μmol/L for ADMA and SDMA, respectively. The correlation between the methods, expressed as the Spearman correlation coefficient (R), was 0.858 (0.8059) for ADMA (p < 0.0001) and 0.895 (0.9607) for SDMA (p < 0.0001). Conclusions ADMA levels determined by the immunoassay were almost 30 % overestimated, in contrast to SDMA levels, which were 3 % underestimated. According to our findings, a better correlation could be obtained by simple sample dilution.
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Affiliation(s)
- Vendula Sudová
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, Pilsen, 32300, Czech Republic
- Department of Clinical Biochemistry and Haematology, Charles University and University Hospital, Pilsen, Czech Republic
| | - Pavel Prokop
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, Pilsen, 32300, Czech Republic
- Department of Clinical Biochemistry and Haematology, Charles University and University Hospital, Pilsen, Czech Republic
| | - Ladislav Trefil
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, Pilsen, 32300, Czech Republic
- Department of Clinical Biochemistry and Haematology, Charles University and University Hospital, Pilsen, Czech Republic
| | - Jaroslav Racek
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, Pilsen, 32300, Czech Republic
- Department of Clinical Biochemistry and Haematology, Charles University and University Hospital, Pilsen, Czech Republic
| | - Daniel Rajdl
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, Pilsen, 32300, Czech Republic
- Department of Clinical Biochemistry and Haematology, Charles University and University Hospital, Pilsen, Czech Republic
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Marynissen S, Junius G, Van den Steen E, Patteet L, Duchateau L, Croubels S, Daminet S, Paepe D. Serum symmetric dimethylarginine in older dogs: Reference interval and comparison of a gold standard method with the ELISA. J Vet Intern Med 2024; 38:960-970. [PMID: 38240346 PMCID: PMC10937498 DOI: 10.1111/jvim.16981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 12/15/2023] [Indexed: 03/16/2024] Open
Abstract
BACKGROUND Serum symmetric dimethylarginine (SDMA) is used to screen for renal dysfunction in dogs. The gold standard technique for measuring SDMA, liquid chromatography-tandem mass spectrometry (LC-MS/MS) is not widely available. Age-specific reference intervals for SDMA in older dogs are lacking. OBJECTIVES Prospective study in older dogs to validate a commercially available LC-MS/MS method for SDMA, compare SDMA concentrations with concentrations measured using ELISA and obtain a reference interval (RI) for older dogs using both methods. ANIMALS Client-owned older dogs undergoing health screening. METHODS The LC-MS/MS method was analytically validated (limit of detection, precision, and linearity). Serum was sent cooled overnight for ELISA or was frozen at -80°C until batch analysis using LC-MS/MS. Results of LC-MS/MS and ELISA were compared and RIs for older dogs were calculated according to international guidelines. RESULTS The LC-MS/MS method showed good linearity (r2 = .99) and precision (coefficient of variation <10%), with a laboratory RI between 8.0 and 14.0 μg/dL. Paired measurements were available from 118 different dogs. Median SDMA concentration were 9.4 (range, 5.0-21.2) using LC-MS/MS and 12.0 (range, 5.0-22.0) μg/dL using ELISA. Both methods significantly differed with a mean difference of 2.2 μg/dL. The RI for older dogs for LC-MS/MS was 4.4-15.0 μg/dL, and for ELISA was 6.4-17.4 μg/dL. CONCLUSIONS AND CLINICAL IMPORTANCE The ELISA provided significantly higher SDMA concentrations compared to the validated LC-MS/MS method, indicating the need for device- or assay-specific RI. The obtained age-specific RI for SDMA is considerably higher in older dogs compared to the general laboratory RI.
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Affiliation(s)
- Sofie Marynissen
- Small Animal Department, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | | | | | | | - Luc Duchateau
- Biometrics Research Group, Department of Veterinary and Biosciences, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Siska Croubels
- Department of Pathobiology, Pharmacology and Zoological Medicine, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Sylvie Daminet
- Small Animal Department, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
| | - Dominique Paepe
- Small Animal Department, Faculty of Veterinary MedicineGhent UniversityMerelbekeBelgium
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Huang Q, Liu Y, Cheng Y, Jia F, Pu C, Yan Q, Chang Z, Liao P, Ma D, Xu L, Zhang H, Lu Y, Liu X, Liu K. High-throughput quantitation of serological dimethylarginines by LC/MS/MS: Potential cardiovascular biomarkers for rheumatoid arthritis. J Pharm Biomed Anal 2023; 232:115336. [PMID: 37159983 DOI: 10.1016/j.jpba.2023.115336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 03/01/2023] [Accepted: 03/10/2023] [Indexed: 05/11/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disorder characterized by systemic inflammation of the joints and extra-articular tissues. The incidence of cardiovascular disease (CVD) remains the main cause of morbidity and mortality in patients with RA. Despite the development of new therapeutics targeting the articular manifestations, the relief of the cardiovascular burden is still an unmet medical need during the management of RA. So, the early prognosis of RA-associated CVD plays a crucial role in improving the clinical outcomes of RA patients. Recently, circulating dimethylarginines have gained attention as potential biomarkers for CVDs. Here, we present the development and validation of a high-throughput liquid chromatography-tandem mass spectrometric (LC/MS/MS) method for simultaneous quantification of creatinine, arginine, and dimethylarginines in human serum within 2 mins by isotope dilution mass spectrometry. This method employed a protein precipitation method for rapid sample preparation, trichloroacetic acid (TCA)-based ion pairing chromatography for fast analyte separation, and multiple reaction monitoring (MRM) with stable isotope-labeled internal standards (ISs) for simultaneous quantitation. To assure the quality, our method was validated against the FDA guidelines for lower limit of quantitation (0.2 µM), linearity (square of coefficient correlation>0.99), precision (intra-&inter-assay imprecision < 10 %), accuracy (intra-&inter-assay inaccuracy < 10 %), sample preparation recovery (recovery ≥ 90 %), stability (instability < 10 %), matrix effect (signal suppression < 55 %), and carryover ( < 0.01 %). Afterward, we applied the validated method to a retrospective cross-sectional study. We aimed to evaluate the utility of serological dimethylarginines as potential cardiovascular biomarkers in the development of RA-associated CVD. Our results revealed that the serological ratio of asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA), an indicator of physiological arginine methylation status, was significantly elevated in patients with RA. This finding might provide value in detecting CVD to improve clinical outcomes in RA management.
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Affiliation(s)
- Qianyang Huang
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China
| | - Ying Liu
- Physical Examination Center, Yuebei People's Hospital, Wu Jiang Qu, Shao Guan Shi, Guangzhou 512027, China
| | - Yuna Cheng
- Shanghai Center for Disease Control and Prevention, Chang Ning Qu, Shang Hai Shi, 200051, China
| | - Fujian Jia
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China
| | - Chunchao Pu
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China
| | - Qinghua Yan
- Shanghai Center for Disease Control and Prevention, Chang Ning Qu, Shang Hai Shi, 200051, China
| | - Zhaoyu Chang
- Shanghai Center for Disease Control and Prevention, Chang Ning Qu, Shang Hai Shi, 200051, China
| | - Ping Liao
- Shanghai Center for Disease Control and Prevention, Chang Ning Qu, Shang Hai Shi, 200051, China
| | - Dandan Ma
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China
| | - Lei Xu
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China
| | - Hua Zhang
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China
| | - Yuanzhi Lu
- Department of Pathology, The First Affiliated Hospital of Jinan University, Tianhe Qu, Guangzhou 510632, China
| | - Xin Liu
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China.
| | - Kang Liu
- Shenzhen Kanghua Juntai Biotech Co. Ltd., B 215, Unit No.7, Shahe Rd W, Nanshan, Shenzhen, Guangdong Province 518063, China.
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Jezierska M, Stefanowicz J. Asymmetric and Symmetric Dimethylarginines as Renal Function Parameters in Paediatric Kidney Diseases: A Literature Review from 2003 to 2022. CHILDREN (BASEL, SWITZERLAND) 2022; 9:1668. [PMID: 36360396 PMCID: PMC9688657 DOI: 10.3390/children9111668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 08/27/2023]
Abstract
Asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA), inhibitors of nitric oxide synthase, play important roles in many processes in the body. Most data in the literature concern their importance in adult chronic kidney disease (CKD). According to them, SDMA well reflects the glomerular filtration rate (GFR), and higher ADMA concentrations are associated with hypertension and higher mortality. In addition, both substances are recognised cardiovascular risk factors in CKD. The purpose of this review was to summarise the studies on dimethylarginines in renal diseases in children, about which we have much fewer data. The review focuses specifically on dimethylarginine's relation to routinely used renal function parameters. Finally, we analysed 21 of the 55 articles published between 2003 and 2022 on dimethylarginines in kidney diseases in children (from birth to 18 years of age), obtained by searching PubMed/MEDLINE (search terms: "dimethylarginine" and "kidney").
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Affiliation(s)
- Michalina Jezierska
- Department of Paediatrics, Haematology and Oncology, Faculty of Medicine, Medical University of Gdansk, 7 Debinki Street, 80-211 Gdansk, Poland
- Department of Paediatrics, Haematology and Oncology University Clinical Centre, 7 Debinki Street, 80-952 Gdansk, Poland
| | - Joanna Stefanowicz
- Department of Paediatrics, Haematology and Oncology, Faculty of Medicine, Medical University of Gdansk, 7 Debinki Street, 80-211 Gdansk, Poland
- Department of Paediatrics, Haematology and Oncology University Clinical Centre, 7 Debinki Street, 80-952 Gdansk, Poland
- Faculty of Health Sciences, Medical University of Gdansk, 7 Debinki Street, 80-211 Gdansk, Poland
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Nitric Oxide Synthesis Metabolites-As Potential Markers in Chronic Kidney Disease in Children. Curr Issues Mol Biol 2022; 44:3518-3532. [PMID: 36005138 PMCID: PMC9406431 DOI: 10.3390/cimb44080242] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/04/2022] [Accepted: 08/05/2022] [Indexed: 11/17/2022] Open
Abstract
Nitric oxide (NO) is an important signaling molecule for many physiological and pathological processes. Diseases associated with abnormal NO synthesis include cardiovascular diseases, insulin-dependent diabetes, or chronic kidney disease (CKD). The aim of the paper was to evaluate NO synthesis metabolites, i.e., asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), dimethylamine (DMA), arginine, citrulline in plasma of patients with different severity of CKD and to seek possible links between these parameters and the development of this disease. Forty-eight CKD children and thirty-three age-matched controls were examined. Patients were divided into groups depending on the CKD stages (Group II-stage II, Group III-stage III, Group IV-stage IV, and Group RRT children on dialysis). To determine the concentrations of the above-mentioned metabolites in plasma liquid chromatography-mass spectrometry was used. There were significant differences observed in levels of ADMA, SDMA, DMA, and citrulline between control vis CKD groups (p values ranging from <0.001 to 0.029). Plasma arginine concentration was also higher in CKD patients compared to the control group but statistically insignificant. ADMA levels in CKD children were statistically significantly higher in relation to particular stages of CKD (RRT vis II stage of CKD: p = 0.01; RRT vis III-IV stages of CKD: p < 0.046). Citrulline levels in CKD children were statistically significantly higher in RRT group vis control (p < 0.001). Children with CKD develop disturbances in most metabolites of NO synthesis. Dialysis children treated show the greatest disturbances of plasma ADMA and citrulline levels. ADMA seems to be a good indicator of the gradual progression of the CKD, which is proved by the negative correlation with eGFR.
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Ventricular arrhythmias in mouse models of diabetic kidney disease. Sci Rep 2021; 11:20570. [PMID: 34663875 PMCID: PMC8523538 DOI: 10.1038/s41598-021-99891-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 09/27/2021] [Indexed: 12/05/2022] Open
Abstract
Chronic kidney disease (CKD) affects more than 20 million people in the US, and it is associated with a significantly increased risk of sudden cardiac death (SCD). Despite the significance, the mechanistic relationship between SCD and CKD is not clear and there are few effective therapies. Using optical mapping techniques, we tested the hypothesis that mouse models of progressive diabetic kidney disease (DKD) exhibit enhanced ventricular arrhythmia incidence and underlying arrhythmia substrates. Compared to wild-type mice, both Leprdb/db eNOS−/− (2KO) and high fat diet plus low dose streptozotocin (HFD + STZ) mouse models of DKD experienced sudden death and greater arrhythmia inducibility, which was more common with isoproterenol than programmed electrical stimulation. 2KO mice demonstrated slowed conduction velocity, prolonged action potential duration (APD), and myocardial fibrosis; both 2KO and HFD + STZ mice exhibited arrhythmias and calcium dysregulation with isoproterenol challenge. Finally, circulating concentrations of the uremic toxin asymmetric dimethylarginine (ADMA) were elevated in 2KO mice. Incubation of human cardiac myocytes with ADMA prolonged APD, as also observed in 2KO mice hearts ex vivo. The present study elucidates an arrhythmia-associated mechanism of sudden death associated with DKD, which may lead to more effective treatments in the vulnerable DKD patient population.
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Asymmetric Dimethylarginine (ADMA) in Pediatric Renal Diseases: From Pathophysiological Phenomenon to Clinical Biomarker and Beyond. CHILDREN-BASEL 2021; 8:children8100837. [PMID: 34682102 PMCID: PMC8535118 DOI: 10.3390/children8100837] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 12/11/2022]
Abstract
Asymmetric dimethylarginine (ADMA), an endogenous nitric oxide (NO) synthase inhibitor, inhibits NO synthesis and contributes to the pathogenesis of many human diseases. In adults, ADMA has been identified as a biomarker for chronic kidney disease (CKD) progression and cardiovascular risk. However, little attention is given to translating the adult experience into the pediatric clinical setting. In the current review, we summarize circulating and urinary ADMA reported thus far in clinical studies relating to kidney disease in children and adolescents, as well as systematize the knowledge on pathophysiological role of ADMA in the kidneys. The aim of this review is also to show the various analytical methods for measuring ADMA and the issues tht need to be addressed before transforming to clinical practice in pediatric medicine. The last task is to suggest that ADMA may not only be suitable as a diagnostic or prognostic biomarker, but also a promising therapeutic strategy to treat pediatric kidney disease in the future.
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Chan JS, Hsiao PJ, Chiang WF, Roy-Chaudhury P. The Role of Oxidative Stress Markers in Predicting Acute Thrombotic Occlusion of Haemodialysis Vascular Access and Progressive Stenotic Dysfunction Demanding Angioplasty. Antioxidants (Basel) 2021; 10:antiox10040569. [PMID: 33917703 PMCID: PMC8068110 DOI: 10.3390/antiox10040569] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/30/2021] [Accepted: 04/03/2021] [Indexed: 12/12/2022] Open
Abstract
Haemodialysis vascular access (VA) dysfunction is a major cause of morbidity in haemodialysis (HD) patients. Primary venous outflow occlusion and restenosis after percutaneous transluminal angioplasty (PTA) are two major obstacles for the long-term use of dialysis VA. It remains unclear whether oxidative stress markers can be used as predictors for thrombotic occlusion of VA and progressive stenosis dysfunction demanding PTA. All routine HD patients at one teaching hospital participated in this study including ankle-brachial index (ABI) examinations and serum oxidative stress markers. The serum oxidative stress markers (high-sensitivity C-reactive protein (hs-CRP), matrix metalloproteinase-2 (MMP-2), MMP-9, homocysteine, asymmetrical dimethylarginine (ADMA), nitrate oxidase (NO), tumour necrosis factor-α (TNF-α), monocyte chemotactic protein 1 (MCP-1), interleukin-1β (IL-1β), and transforming growth factor-β (TGF-β)) were measured using immunosorbent assays in 159 HD patients (83 men and 76 women; mean age: 65 ± 12 years). The participants met the following criteria: (1) received regular HD treatment for at least 6 months, without clinical evidence of acute or chronic inflammation, recent myocardial infarction, unstable angina or circulatory congestion; and (2) received an arteriovenous fistula (AVF)/arteriovenous graft (AVG: polytetrafluoroethylene, PTFE) as the current VA for more than 6 months, without interventions within the last 6 months. All the participants were followed up clinically for up to 12 months to estimate the amount of primary thrombotic occlusion and VA dysfunction demanding PTA. During the 12-month observation, 24 patients (15.1%) had primary thrombotic occlusion of VAs. Another 24 patients (15.1%) required PTA because of clinical dysfunction of access. Additionally, during the follow-up period, restenosis occurred in 12 patients (50% of 24 patients). The access types of arteriovenous grafts (AVGs) and a diagnosis of peripheral arterial occlusive disease (PAOD) were two strong predictors for acute thrombotic events of VA (hazard ratio (HR): 16.93 vs. 2.35; p < 0.001 vs. 0.047). Comparing dysfunctional with non-dysfunctional VAs, up to 27.7% of patients with high levels of ADMA (>0.6207 μM, N = 65) received required PTA compared with 4.4% of those with low levels (≤0.6207 μM; N = 90; p < 0.001). In multivariate analysis, the plasma baseline levels of ADMA independently conferred nearly 4.55 times the risk of primary stenotic dysfunction of HD VA (HR: 4.55; 95% confidence interval: 1.20 to 17.26; p = 0.026). In conclusion, our findings suggest the role of ADMA in the development of symptomatic VA dysfunction. Additionally, PAOD severity can be used in clinical practice to predict whether acute thrombotic occlusion of VA will easily occur in HD patients.
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Affiliation(s)
- Jenq-Shyong Chan
- Department of Internal Medicine, Division of Nephrology, Armed Forces Taoyuan General Hospital, Taoyuan 325, Taiwan; (J.-S.C.); (W.-F.C.)
- Department of Medicine, Division of Nephrology, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
- National Defense Medical Center, School of Medicine, Taipei 114, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University, Taipei 112, Taiwan
| | - Po-Jen Hsiao
- Department of Internal Medicine, Division of Nephrology, Armed Forces Taoyuan General Hospital, Taoyuan 325, Taiwan; (J.-S.C.); (W.-F.C.)
- Department of Medicine, Division of Nephrology, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
- National Defense Medical Center, School of Medicine, Taipei 114, Taiwan
- Department of Life Sciences, National Central University, Taoyuan 320, Taiwan
- Correspondence: (P.-J.H.); (P.R.-C.); Tel.: +886-3-479-9595 (P.-J.H.); +1-513-312-5045 (P.R.-C.)
| | - Wen-Fang Chiang
- Department of Internal Medicine, Division of Nephrology, Armed Forces Taoyuan General Hospital, Taoyuan 325, Taiwan; (J.-S.C.); (W.-F.C.)
- Department of Medicine, Division of Nephrology, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
- National Defense Medical Center, School of Medicine, Taipei 114, Taiwan
| | - Prabir Roy-Chaudhury
- Department of Medicine, Division of Nephrology and Hypertension, University of North Carolina, Chapel Hill, NC 27599, USA
- Salisbury VA Medical Center, Salisbury, NC 27284, USA
- Correspondence: (P.-J.H.); (P.R.-C.); Tel.: +886-3-479-9595 (P.-J.H.); +1-513-312-5045 (P.R.-C.)
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Arlouskaya Y, Sawicka A, Głowala M, Giebułtowicz J, Korytowska N, Tałałaj M, Nowicka G, Wrzosek M. Asymmetric Dimethylarginine (ADMA) and Symmetric Dimethylarginine (SDMA) Concentrations in Patients with Obesity and the Risk of Obstructive Sleep Apnea (OSA). J Clin Med 2019; 8:jcm8060897. [PMID: 31234586 PMCID: PMC6616493 DOI: 10.3390/jcm8060897] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/14/2019] [Accepted: 06/19/2019] [Indexed: 12/25/2022] Open
Abstract
Asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) are endogenous inhibitors of nitric oxide (NO) synthesis, and play a critical role in the process of endothelial dysfunction, and are considered markers of oxidative stress. The aim of the present study was to explore relationships between ADMA and/or SDMA and the occurrence of OSA in obese patients as well as the effect of the endothelial nitric oxide synthase (eNOS) gene polymorphism, which may modify the influence of ADMA or SDMA on NO production. A total of 518 unrelated obese subjects were included in this study. Body weight, height and blood pressure were measured and data on self-reported smoking status were collected. Obstructive sleep apnea (OSA) was assessed by the apnea hypopnea index (AHI). Blood samples were collected to measure serum concentrations of glucose, total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides, creatinine, HbA1c (%), folic acid, vitamin B12, C-reactive protein (CRP), aspartate aminotransferase (ASP), alanine aminotransferase (ALT) and IL-6 by routine methods. The NOS3 gene G894T and 4a/4b polymorphisms were detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis. ADMA, SDMA and arginine concentrations were assessed simultaneously using liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) method. Adjusted multivariate logistic regression analysis showed a significant association between the occurrence of OSA and high serum ADMA levels, BMI above 40, age > 43 years, hypertension and male sex. Heterozygotes for the G894T eNOS polymorphism have the lowest serum concentrations of ADMA and SDMA, while no effect of the 4a/4b variants was observed. The results indicate that OSA in obese individuals can coexist with high ADMA levels, which appear as a potential OSA predictor.
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Affiliation(s)
- Yana Arlouskaya
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy and Laboratory of Biochemistry and Clinical Chemistry at the Preclinical Research Center, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Ada Sawicka
- Department of Family Medicine, Internal Medicine and Metabolic Bone Diseases, Medical Centre of Postgraduate Education, 00-416 Warsaw, Poland.
| | - Marek Głowala
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy and Laboratory of Biochemistry and Clinical Chemistry at the Preclinical Research Center, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Joanna Giebułtowicz
- Department of Bioanalysis and Drug Analysis, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Natalia Korytowska
- Department of Bioanalysis and Drug Analysis, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Marek Tałałaj
- Department of Family Medicine, Internal Medicine and Metabolic Bone Diseases, Medical Centre of Postgraduate Education, 00-416 Warsaw, Poland.
| | - Grażyna Nowicka
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy and Laboratory of Biochemistry and Clinical Chemistry at the Preclinical Research Center, Medical University of Warsaw, 02-097 Warsaw, Poland.
| | - Małgorzata Wrzosek
- Department of Biochemistry and Pharmacogenomics, Faculty of Pharmacy and Laboratory of Biochemistry and Clinical Chemistry at the Preclinical Research Center, Medical University of Warsaw, 02-097 Warsaw, Poland.
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Mamoulakis C, Fragkiadoulaki I, Karkala P, Georgiadis G, Zisis IE, Stivaktakis P, Kalogeraki A, Tsiaoussis I, Burykina T, Lazopoulos G, Tsarouhas K, Kouretas D, Tsatsakis A. Contrast-induced nephropathy in an animal model: Evaluation of novel biomarkers in blood and tissue samples. Toxicol Rep 2019; 6:395-400. [PMID: 31080747 PMCID: PMC6506864 DOI: 10.1016/j.toxrep.2019.04.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 04/19/2019] [Accepted: 04/28/2019] [Indexed: 12/26/2022] Open
Abstract
Identification of novel biomarkers of contrast-induced nephropathy (CIN) that may more accurately detect renal function changes; reflect kidney damage; assist monitoring; and elucidate pathophysiology attract considerable scientific attention nowadays. To evaluate novel biomarkers of nephrotoxicity in blood/tissue samples of a CIN model, 10 New Zealand white rabbits were divided into group 1 (n = 5; iopromide) and group 2 (n = 5; control). Blood was drawn at 0 h (immediately), 24 h and 48 h after contrast medium (CM) administration. Animals were euthanized at 48 h and kidneys were removed. Serum creatinine (sCr)/symmetric-asymmetric dimethylarginine (SDMA-ADMA) levels were measured. CM genotoxic/cytotoxic effect was investigated 48 h post-CM exposure using micronucleus assay in lymphocytes. Cytological examination was conducted using touch preparation technique (TPT). All animals in group 1 developed CIN: mean sCr levels increased by 68.2% within 48 h. Significant SDMA-ADMA level elevation was observed at 0 h and 24 h with insignificant drop at 48 h in group 1, remaining normal in group 2 at all time-points. Significant increase in bi-nucleated cells with micronuclei and micronuclei frequency was detected in group 1. Cytokinesis block proliferation index was reduced insignificantly in group 1. TPT revealed degenerative lesions/inflammation, cell degeneration, abnormal uterine tubular casts and rubella in kidneys of all animals in group 1. Group 2 presented normal cells.
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Key Words
- ADMA, asymmetric dimethylarginine
- AKI, acute kidney injury
- ANOVA, analysis of variance
- ARRIVE, animal research: reporting of in vivo experiments
- AVMA, American Veterinary Medical Association
- Animal
- Asymmetric dimethylarginine
- BNMN, Bi-nucleated cells with micronuclei
- CBPI, cytokinesis block proliferation index
- CIN, contrast-induced nephropathy
- CKD, chronic kidney disease
- CM, contrast medium
- Contrast media
- ESI, electrospray ionization
- GFR, glomerular filtration rate
- Iopromide
- KIM-1, kidney injury molecule-1
- Kidney
- LC–MS, liquid chromatography mass spectrometry
- MN, micronuclei
- Models
- NGAL, meutrophil gelatinase–associated lipocalin
- NO, nitric oxide
- Nephropathy
- Nephrotoxicity
- OECD, Organisation for Economic Co-operation and Development
- RBF, renal blood flow
- ROS, reactive oxygen species
- SCR, serum creatinine
- SD, standard deviation
- SDMA, symmetric dimethylarginine
- Symmetric dimethylarginine
- TPT, touch preparation technique
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Affiliation(s)
- Charalampos Mamoulakis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Irene Fragkiadoulaki
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Phaedra Karkala
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Georgios Georgiadis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Ioannis-Erineos Zisis
- Department of Urology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Polychronis Stivaktakis
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
| | - Alexandra Kalogeraki
- Department of Pathology-Cytopathology, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Ioannis Tsiaoussis
- Laboratory of Anatomy-Histology-Embryology, University of Crete, Medical School, Heraklion, Crete, Greece
| | - Tatyana Burykina
- Department of Analytical and Forensic Medical Toxicology, Sechenov University, 2-4 Bolshaya Pirogovskaya st., 119991, Moscow, Russia
| | - George Lazopoulos
- Department of Cardiothoracic Surgery, University General Hospital of Heraklion, University of Crete, Medical School, Heraklion, Crete, Greece
| | | | - Dimitrios Kouretas
- Department of Biochemistry and Biotechnology, University of Thessaly, 41500, Larissa, Greece
| | - Aristides Tsatsakis
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion, 71003, Greece
- Department of Analytical and Forensic Medical Toxicology, Sechenov University, 2-4 Bolshaya Pirogovskaya st., 119991, Moscow, Russia
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A Pilot Study to Assess Kidney Functions and Toxic Dimethyl-arginines as Risk Biomarkers in Women with Low Vitamin D Levels. J Med Biochem 2019; 38:145-152. [PMID: 30867642 PMCID: PMC6411003 DOI: 10.2478/jomb-2018-0025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 06/08/2018] [Indexed: 12/26/2022] Open
Abstract
Background Although vitamin D in not a traditional marker for cardiovascular and renal diseases, several studies have proposed a correlation between vitamin D deficiency and these diseases due to the effect of vitamin D on endothelial function. Asymmetric and symmetric dimethyl arginine (ADMA and SDMA, respectively) are endogenous markers of endothelial dysfunction, and are considered as future markers for the assessment of cardiovascular and renal diseases. The present study investigated the association of kidney function tests (urea and creatinine) and dimethylarginine toxins (ADMA and SDMA) in women with vitamin D insufficiency or deficiency. Indeed, sex hormones (estrogen and testosterone) were analyzed in the participants. Methods Women were divided into two groups: premenopausal women (younger than 50 years) and postmenopausal women (older than 50 years). Urea, creatinine, estrogen, testosterone, ADMA, and SDMA levels were analyzed when vitamin D level was deficient or insufficient in the participants. Results The premenopausal women group showed no significant correlations between dimethylarginine toxins and renal failure tests or sex hormones. In the elderly (postmenstrual) women group, only SDMA was significantly correlated with urea and creatinine, while both ADMA and SDMA were not correlated with sex hormones. Conclusions Although ADMA and SDMA are promising candidates of endothelial dysfunction and are increased in menopause and aging, no direct link between ADMA and further progression of renal failure was observed in women with low vitamin D levels. In contrast, a possible direct correlation between SDMA and renal dysfunction was noticed, but only in an age-dependent manner.
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12
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Yang T, Xu P, Gu L, Xu Z, Ge W, Li Q, Xu F. Quantitative assessment of serum heat shock protein 27 for the diagnosis of epithelial ovarian cancer using targeted proteomics coupled with immunoaffinity enrichment. Clin Chim Acta 2018; 489:96-102. [PMID: 30502327 DOI: 10.1016/j.cca.2018.11.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 11/07/2018] [Accepted: 11/28/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Heat shock protein 27 (HSP27) may take part in the epithelial ovarian cancer (EOC) malignant process because it is elevated in the serum of EOC patients, suggesting that HSP27 may serve as an EOC biomarker to complement the standard serum carbohydrate antigen 125 (CA125) test. Thus, accurate quantification of serum HSP27 would assist the diagnosis of EOC. METHODS Liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based targeted proteomics coupled with an immunoaffinity enrichment assay was developed and validated to monitor HSP27 concentrations in serum. RESULTS Tryptic peptide 80QLSSGVSEIR89 was selected as a surrogate analyte for quantification, and an immuno-depleted serum extract was used as a surrogate matrix. Immunoaffinity enrichment was effective for protein enrichment and sensitivity enhancement, and the resulting LOQ was 500 pg/ml (>10-fold increase). Then, serum HSP27 concentrations in EOC patients, benign ovarian tumors patients and healthy volunteers were accurately determined to be 4.95 ± 0.37 ng/ml, 2.98 ± 0.16 ng/ml and 2.82 ± 0.15 ng/ml, respectively, suggesting that the EOC samples had significantly higher concentrations of HSP27 than a sample from benign ovarian tumor patients. The experimental values for the samples were compared with those obtained from enzyme-linked immune sorbent assays (ELISAs). The ROC curve analysis showed that the combined area under the curve (AUC) for CA125 and HSP27 was 0.88, which is significantly superior to that of CA125 alone. CONCLUSIONS Targeted proteomics coupled with immunoaffinity enrichment may provide more accurate quantification of low-abundant proteins.
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Affiliation(s)
- Ting Yang
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Pengfei Xu
- Nanjing Maternity and Child Health Medical Institute, Affiliated Nanjing Maternal and Child Health Hospital, Nanjing Medical University, Nanjing, China
| | - Lize Gu
- Center for Genetic Medicine, Xuzhou Maternity and Child Health Care Hospital, Xuzhou, China
| | - Zhiyuan Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Weihong Ge
- Department of Pharmacy, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
| | - Qing Li
- Department of Pathology, Shanghai Pudong New Area People's Hospital, Shanghai, China.
| | - Feifei Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, China.
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13
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Amir M, Hassanein SI, Abdel Rahman MF, Gad MZ. AGXT2 and DDAH-1 genetic variants are highly correlated with serum ADMA and SDMA levels and with incidence of coronary artery disease in Egyptians. Mol Biol Rep 2018; 45:2411-2419. [PMID: 30284143 DOI: 10.1007/s11033-018-4407-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Accepted: 09/25/2018] [Indexed: 12/17/2022]
Abstract
Dimethylarginine aminodehydrolase (DDAH1) and alanine glyoxylate aminotransferase2 (AGXT2) are two enzymes that contribute in asymmetric dimethylarginine (ADMA) and symmetric dimethylarginine (SDMA) metabolism. Hence they affect production and bioavailability of eNOS-derived nitric oxide (NO) and consequently healthy blood vessels. The major aims of the current study were to investigate the association of genetic variants of AGXT2 rs37369, AGXT2 rs16899974 and DDAH1 rs997251 SNPs with incidence of coronary artery disease (CAD) in Egyptians and to correlate these variants with the serum levels of ADMA and SDMA. The study included 150 subjects; 100 CAD patients and 50 healthy controls. Genotyping was performed by qPCR while the ADMA and SDMA concentrations were assayed by ELISA. Both serum ADMA and SDMA concentrations were significantly higher in CAD patients compared to controls (both p < 0.0001). Genotype distributions for all studied SNPs were significantly different between CAD patients and controls. Carriers of AGXT2 rs37369-T allele (CT + TT genotypes) and AGXT2 rs16899974-A allele (CA + AA genotypes) had 2.4- and 2.08-fold higher risk of having CAD than CC genotype in both SNPs (p = 0.0050 and 0.0192, respectively). DDAH1 rs997251 TC + CC genotypes were associated with 2.3-fold higher risk of CAD than TT genotype (p = 0.0063). Moreover, the AGXT2 rs37369 TT and AGXT2 rs16899974 AA genotypes were associated with the highest serum ADMA and SDMA while DDAH1 rs997251 CC genotype was associated with the highest ADMA. AGXT2 rs37369-T, AGXT2 rs16899974-A, and DDAH1 rs997251-C alleles represent independent risk factors for CAD in the Egyptians.
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Affiliation(s)
- Mina Amir
- Clinical Biochemistry Unit, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), Main Entrance El-Tagamoa El-Khames, New Cairo City, Cairo, Egypt
| | - Sally I Hassanein
- Clinical Biochemistry Unit, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), Main Entrance El-Tagamoa El-Khames, New Cairo City, Cairo, Egypt.
| | - Mohamed F Abdel Rahman
- Biochemistry Department, Faculty of Pharmacy, October University for Modern Sciences and Arts (MSA), Cairo, Egypt
| | - Mohamed Z Gad
- Clinical Biochemistry Unit, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), Main Entrance El-Tagamoa El-Khames, New Cairo City, Cairo, Egypt
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14
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Fleszar MG, Wiśniewski J, Krzystek-Korpacka M, Misiak B, Frydecka D, Piechowicz J, Lorenc-Kukuła K, Gamian A. Quantitative Analysis of l-Arginine, Dimethylated Arginine Derivatives, l-Citrulline, and Dimethylamine in Human Serum Using Liquid Chromatography-Mass Spectrometric Method. Chromatographia 2018; 81:911-921. [PMID: 29887621 PMCID: PMC5972178 DOI: 10.1007/s10337-018-3520-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 04/03/2018] [Accepted: 04/06/2018] [Indexed: 11/24/2022]
Abstract
ABSTRACT Nitric oxide (NO) is a small molecule involved in the regulation of many physiological processes. It plays a crucial role in the regulation of nervous system, immune and inflammatory responses, and blood flow. NO is synthesized by nitric oxide synthase (NOS) during two-step oxidation of l-arginine to l-citrulline. Intermediates and derivatives of NO metabolism, such as l-arginine, l-citrulline, asymmetrical dimethylarginine (ADMA), symmetrical dimethylarginine (SDMA), and dimethylamine (DMA), are investigated as potential biomarkers. In this article, we present a novel analytical method that allowed for simultaneous analysis of l-arginine, ADMA, SDMA, l-citrulline, and DMA, in a single-step extraction and derivatization using benzoyl chloride. In brief, aliquots of serum were mixed with internal standard solution mixture (50 µM D6-DMA, 20 µM D7-ADMA, and 100 µM D7-arginine) and 0.025 M borate buffer, pH 9.2 (10:1:5). The derivatization process was performed at 25 °C for 5 min using 10% benzoyl chloride. A reverse phase column was used for chromatographic separation. Quantitation was performed using following ions (m/z): 279.1457, 286.1749, 307.1717, 314.2076, 280.1297, 150.0919, and 156.1113 for l-arginine, D7-arginine, ADMA, SDMA, D7-ADMA, l-citrulline, DMA, and D6-DMA, respectively. The method was validated, and its assay linearity, accuracy and precision, recovery, and limits of detection (1.7 µM l-arginine, 0.03 µM ADMA, 0.02 µM SDMA, 0.36 µM l-citrulline, 0.06 µM DMA) and quantification (3.2 µM l-arginine, 0.08 µM ADMA, 0.05 µM SDMA, 1.08 µM l-citrulline, 0.19 µM DMA) were determined. The method is sensitive, reliable, repeatable, and reproducible. It can be applied in the routine clinical/diagnostic laboratory. GRAPHICAL ABSTRACT
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Affiliation(s)
- Mariusz G. Fleszar
- Department of Medical Biochemistry, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland
| | - Jerzy Wiśniewski
- Department of Medical Biochemistry, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland
| | | | - Błażej Misiak
- Department of Psychiatry, Wroclaw Medical University, 10 Pasteur Street, 50-367 Wroclaw, Poland
- Department of Genetics, Wroclaw Medical University, 1 Marcinkowski Street, 50-368 Wroclaw, Poland
| | - Dorota Frydecka
- Department of Psychiatry, Wroclaw Medical University, 10 Pasteur Street, 50-367 Wroclaw, Poland
| | - Joanna Piechowicz
- Department of Medical Biochemistry, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland
| | - Katarzyna Lorenc-Kukuła
- Shimadzu Center for Advanced Analytical Chemistry, University of Texas at Arlington, Arlington, TX USA
| | - Andrzej Gamian
- Department of Medical Biochemistry, Wroclaw Medical University, ul. Chalubinskiego 10, 50-368 Wroclaw, Poland
- Wroclaw Research Center EIT+, Wroclaw, Poland
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15
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Hammes M, McGill R, Dhar P, Madhurapantula RS. Asymmetric Dimethylarginine does not Predict Early Access Events in Hemodialysis Patients with Brachiocephalic Fistula Access. ACTA ACUST UNITED AC 2017; 3. [PMID: 29104939 PMCID: PMC5667913 DOI: 10.16966/2380-5498.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Background Vascular access for hemodialysis is best provided by an arteriovenous fistula (AVF). AVF fail primarily because of neointimal hyperplasia. Asymmetric dimethlyarginine (ADMA) is a naturally occurring analogue of L-arginine, which is elevated in renal failure and impairs endothelial cell function. ADMA inhibits nitric oxide synthetase, leading to impaired nitric oxide production and contributing to the development of neointimal hyperplasia. ADMA was measured at the time of AVF placement to evaluate associations with access failure. Methods ADMA was measured at the time of brachiocephalic access placement. Patients were followed for up to 12 months with end-points of access thrombosis or venous stenosis. Results Sixty patients with primary brachiocephalic fistulas were included in the study cohort. The median value for ADMA drawn at the time of AVF creation was 3.1 µmol/L. ADMA was not significantly associated with early thrombosis or venous stenosis events (P>0.05). Conclusion Preoperative ADMA levels, as a surrogate for endothelial cell dysfunction and predictor of adverse access event (thrombosis or stenosis), were not associated with subsequent access events Future studies that identify markers of endothelial cell dysfunction are warranted.
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Affiliation(s)
- Mary Hammes
- Department of Medicine, Section of Nephrology, University of Chicago, Chicago, IL
| | - Rita McGill
- Department of Medicine, Section of Nephrology, University of Chicago, Chicago, IL
| | - Promila Dhar
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL
| | - Rama S Madhurapantula
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL
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16
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Disposition and clinical implications of protein-bound uremic toxins. Clin Sci (Lond) 2017; 131:1631-1647. [DOI: 10.1042/cs20160191] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/10/2017] [Accepted: 04/11/2017] [Indexed: 12/11/2022]
Abstract
In patients with chronic kidney disease (CKD), adequate renal clearance is compromised, resulting in the accumulation of a plethora of uremic solutes. These uremic retention solutes, also named uremic toxins, are a heterogeneous group of organic compounds with intrinsic biological activities, many of which are too large to be filtered and/or are protein bound. The renal excretion of protein-bound toxins depends largely on active tubular secretion, which shifts the binding and allows for active secretion of the free fraction. To facilitate this process, renal proximal tubule cells are equipped with a range of transporters that co-operate in basolateral uptake and luminal excretion. Many of these transporters have been characterized as mediators of drug disposition, but have recently been recognized for their importance in the proximal renal tubular transport of uremic toxins as well. This also indicates that during uremia, drug disposition may be severely affected as a result of drug–uremic toxin interaction. In addition, CKD patients receive various drugs to treat their complications potentially resulting in drug–drug interactions (DDIs), also for drugs that are non-renally excreted. This review discusses the current knowledge on formation, disposition and removal of protein-bound uremic toxins. Furthermore, implications associated with drug treatment in kidney failure, as well as innovative renal replacement therapies targetting the protein-bound uremic toxins are being discussed. It will become clear that the complex problems associated with uremia warrant a transdisciplinary approach that unites research experts in the area of fundamental biomedical research with their colleagues in clinical nephrology.
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17
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Wiśniewski J, Fleszar MG, Piechowicz J, Krzystek-Korpacka M, Chachaj A, Szuba A, Lorenc-Kukula K, Masłowski L, Witkiewicz W, Gamian A. A novel mass spectrometry-based method for simultaneous determination of asymmetric and symmetric dimethylarginine, l
-arginine and l
-citrulline optimized for LC-MS-TOF and LC-MS/MS. Biomed Chromatogr 2017; 31. [DOI: 10.1002/bmc.3994] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 03/20/2017] [Accepted: 04/19/2017] [Indexed: 12/20/2022]
Affiliation(s)
- Jerzy Wiśniewski
- Department of Medical Biochemistry; Wroclaw Medical University; Wroclaw Poland
| | - Mariusz G. Fleszar
- Department of Medical Biochemistry; Wroclaw Medical University; Wroclaw Poland
| | - Joanna Piechowicz
- Department of Medical Biochemistry; Wroclaw Medical University; Wroclaw Poland
| | | | - Angelika Chachaj
- Department of Angiology; Wroclaw Medical University; Wroclaw Poland
- Department of Internal Medicine; 4th Military Hospital; Wroclaw Poland
| | - Andrzej Szuba
- Department of Angiology; Wroclaw Medical University; Wroclaw Poland
- Department of Internal Medicine; 4th Military Hospital; Wroclaw Poland
| | - Katarzyna Lorenc-Kukula
- Shimadzu Center For Advanced Analytical Chemistry; The University of Texas at Arlington; TX USA
| | - Leszek Masłowski
- Department of Vascular Surgery; Regional Specialist Hospital; Wroclaw Poland
| | - Wojciech Witkiewicz
- Department of Surgical Oncology; Regional Specialist Hospital; Wroclaw Poland
- Research and Development Center at Regional Specialist Hospital; Wroclaw Poland
| | - Andrzej Gamian
- Department of Medical Biochemistry; Wroclaw Medical University; Wroclaw Poland
- Wroclaw Research Center EIT+; Wroclaw Poland
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Toxic Dimethylarginines: Asymmetric Dimethylarginine (ADMA) and Symmetric Dimethylarginine (SDMA). Toxins (Basel) 2017; 9:toxins9030092. [PMID: 28272322 PMCID: PMC5371847 DOI: 10.3390/toxins9030092] [Citation(s) in RCA: 164] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 03/04/2017] [Indexed: 02/07/2023] Open
Abstract
Asymmetric and symmetric dimethylarginine (ADMA and SDMA, respectively) are toxic, non-proteinogenic amino acids formed by post-translational modification and are uremic toxins that inhibit nitric oxide (NO) production and play multifunctional roles in many human diseases. Both ADMA and SDMA have emerged as strong predictors of cardiovascular events and death in a range of illnesses. Major progress has been made in research on ADMA-lowering therapies in animal studies; however, further studies are required to fill the translational gap between animal models and clinical trials in order to treat human diseases related to elevated ADMA/SDMA levels. Here, we review the reported impacts of ADMA and SDMA on human health and disease, focusing on the synthesis and metabolism of ADMA and SDMA; the pathophysiological roles of these dimethylarginines; clinical conditions and animal models associated with elevated ADMA and SDMA levels; and potential therapies against ADMA and SDMA. There is currently no specific pharmacological therapy for lowering the levels and counteracting the deleterious effects of ADMA and SDMA. A better understanding of the mechanisms underlying the impact of ADMA and SDMA on a wide range of human diseases is essential to the development of specific therapies against diseases related to ADMA and SDMA.
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Sitar ME. Asymmetric Dimethylarginine and Its Relation As a Biomarker in Nephrologic Diseases. Biomark Insights 2016; 11:131-137. [PMID: 27980388 PMCID: PMC5144928 DOI: 10.4137/bmi.s38434] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 10/18/2016] [Accepted: 10/27/2016] [Indexed: 02/06/2023] Open
Abstract
It is encouraging to observe that a search for publications on "asymmetric dimethylarginine (ADMA)" in PubMed, as updated on June 2016, yielded >2500 items, 24 years after a splendid paper published by Vallance et al in which the authors proposed that ADMA accumulation could be a cardiovascular risk factor in chronic kidney diseases. ADMA is the endogenous inhibitor of nitric oxide synthase and is related to endothelial dysfunction, which plays an important role in vascular damage elicited by various cardiometabolic risk factors. Although current knowledge suggests that ADMA has critical central roles in renal diseases, there are still unexplained details. The present article aims to provide a review on ADMA and its relation as a biomarker in nephrologic diseases. We aimed to systematize articles in which ADMA levels were assessed in order to clarify its role in many diseases and establish its reference values in different populations.
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Affiliation(s)
- Mustafa E Sitar
- Faculty of Medicine, Department of Clinical Biochemistry, Maltepe University, Maltepe, Istanbul, Republic of Turkey
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20
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Response to Tsikas et al. Comments on Boelaert et al. Determination of Asymmetric and Symmetric Dimethylarginine in Serum from Patients with Chronic Kidney Disease: UPLC–MS/MS versus ELISA. Toxins 2016, 8, 149. Toxins (Basel) 2016; 8:toxins8110312. [PMID: 27801792 PMCID: PMC5127109 DOI: 10.3390/toxins8110312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 10/26/2016] [Indexed: 11/17/2022] Open
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21
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Tsikas D, Beckmann B, Araujo P. Comments on Boelaert et al. Determination of Asymmetric and Symmetric Dimethylarginine in Serum from Patients with Chronic Kidney Disease: UPLC-MS/MS versus ELISA. Toxins 2016, 8, 149. Toxins (Basel) 2016; 8:toxins8110311. [PMID: 27801791 PMCID: PMC5127108 DOI: 10.3390/toxins8110311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 07/26/2016] [Accepted: 10/21/2016] [Indexed: 11/16/2022] Open
Affiliation(s)
- Dimitrios Tsikas
- Center of Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str., Hannover 30625, Germany.
| | - Bibiana Beckmann
- Center of Pharmacology and Toxicology, Hannover Medical School, Carl-Neuberg-Str., Hannover 30625, Germany.
| | - Pedro Araujo
- National Institute of Nutrition and Seafood Research (NIFES), Nordnes, Bergen N-5817, Norway.
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