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Oltmanns C, Bremer B, Kusche L, Stål P, Zenlander R, Tauwaldt J, Rydén I, Påhlsson P, Cornberg M, Wedemeyer H. Elevation of S2-bound α1-acid glycoprotein is associated with chronic hepatitis C virus infection and hepatocellular carcinoma. J Viral Hepat 2024. [PMID: 38610115 DOI: 10.1111/jvh.13943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024]
Abstract
There is an urgent need for new high-quality markers for the early detection of hepatocellular carcinoma (HCC). Åström et al. suggested that S2-bound α1-acid glycoprotein (AGP) might be a promising marker. Consequently, we evaluated the predictive advantage of S2-bound AGP in the early detection of HCC. In a retrospective case-control study of patients chronically infected with hepatitis C virus (HCV) and treated with direct-acting antiviral agents (n = 93), we measured S2-bound AGP using the HepaCheC® ELISA kit (Glycobond AB, Linköping, SE) at the start of treatment, end of treatment and follow-up (maximum: 78 months). Patients were retrospectively propensity score matched (1:2). Thirty-one patients chronically infected with HCV developed HCC after a sustained virological response, while 62 did not. In addition, samples of patients with chronic hepatitis B virus infection, metabolic dysfunction-associated steatotic liver disease and HCC of different etiologies were analysed. S2-bound AGP elevation in HCC patients was confirmed. However, we did not observe a predictive advantage of S2-bound AGP for the early detection of HCC during treatment and follow-up. Interestingly, S2-bound AGP levels correlated with aspartate aminotransferase (ρ = .56, p = 9.5×10-15) and liver elastography (ρ = .67, p = 2.2×10-16). Of note, S2-bound AGP decreased in patients chronically infected with HCV after treatment-induced HCV clearance. Fucosylated S2-bound AGP levels were elevated in patients with chronic HCV and HCC. The potential role of S2-bound AGP as a novel tumour marker requires further investigation.
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Affiliation(s)
- Carlos Oltmanns
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH), Hannover, Germany
- Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany
- Cluster of Excellence Resolving Infection Susceptibility (RESIST; EXC 2155), Hannover Medical School, Hannover, Germany
- TWINCORE, a joint venture between the Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany
| | - Birgit Bremer
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH), Hannover, Germany
- Cluster of Excellence Resolving Infection Susceptibility (RESIST; EXC 2155), Hannover Medical School, Hannover, Germany
| | - Laura Kusche
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH), Hannover, Germany
| | - Per Stål
- Department of Medicine, Karolinska Institutet, Huddinge, Sweden
- Division of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Robin Zenlander
- Department of Medicine, Karolinska Institutet, Huddinge, Sweden
- Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, Huddinge, Sweden
| | - Jan Tauwaldt
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH), Hannover, Germany
- Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany
- Cluster of Excellence Resolving Infection Susceptibility (RESIST; EXC 2155), Hannover Medical School, Hannover, Germany
- TWINCORE, a joint venture between the Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany
| | - Ingvar Rydén
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Peter Påhlsson
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Markus Cornberg
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH), Hannover, Germany
- Centre for Individualised Infection Medicine (CiiM), a joint venture between the Helmholtz Centre for Infection Research (HZI) and Hannover Medical School (MHH), Hannover, Germany
- Cluster of Excellence Resolving Infection Susceptibility (RESIST; EXC 2155), Hannover Medical School, Hannover, Germany
- TWINCORE, a joint venture between the Helmholtz-Centre for Infection Research (HZI) and the Hannover Medical School (MHH), Hannover, Germany
- German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Braunschweig, Germany
| | - Heiner Wedemeyer
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School (MHH), Hannover, Germany
- Cluster of Excellence Resolving Infection Susceptibility (RESIST; EXC 2155), Hannover Medical School, Hannover, Germany
- German Centre for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Braunschweig, Germany
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Zenlander R, Salter H, Gilg S, Eggertsen G, Stål P. MicroRNAs as Plasma Biomarkers of Hepatocellular Carcinoma in Patients with Liver Cirrhosis-A Cross-Sectional Study. Int J Mol Sci 2024; 25:2414. [PMID: 38397091 PMCID: PMC10888674 DOI: 10.3390/ijms25042414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/13/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024] Open
Abstract
Ultrasound screening for hepatocellular carcinoma (HCC) in patients with liver cirrhosis has a poor sensitivity for small tumors. Circulating microRNAs (miRNAs) have been explored as HCC biomarkers, but results are diverging. Here, we evaluate if miRNAs up-regulated in HCC tissue can be detected in plasma and used as screening biomarkers for HCC. In this cross-sectional study, plasma, HCC tissue and surrounding non-tumorous liver tissue were collected from liver resections. Tissue miRNAs were identified and quantitated by RNA-sequencing analysis, and the fold-changes between HCC and surrounding liver tissue were calculated. The miRNAs up-regulated in HCCs were then re-analyzed in plasma from the same patients, and the miRNAs with the highest plasma levels were subsequently measured in plasma from an independent cohort of patients with cirrhosis or HCC. In tissues from 84 resected patients, RNA-sequencing detected 197 differentially expressed miRNAs, 40 of which had a raw count above 200 and were analyzed in plasma from the same cohort. Thirty-one miRNAs were selected for further analysis in 200 patients with HCC or cirrhosis. Of these, eleven miRNAs were significantly increased in HCC as compared to cirrhosis patients. Only miR-93-5p and miR-151a-3p were significantly associated with HCC, with an AUC of 0.662. In comparison, alpha-fetoprotein and des-gamma-carboxy prothrombin yielded an AUC of 0.816, which increased to 0.832 if miR-93-5p and miR-151a-3p were added. When including sex and age, the addition of miR-93-5p and miR-151a-3p did not further improve the AUC (from 0.910 to 0.911). In conclusion, micro-RNAs up-regulated in HCCs are detectable in plasma but have a poor performance as screening biomarkers of HCC.
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Affiliation(s)
- Robin Zenlander
- Department of Clinical Chemistry, Karolinska University Hospital, 141 86 Stockholm, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, 141 52 Stockholm, Sweden
- Department of Medicine, Huddinge, Karolinska Institutet, 141 86 Stockholm, Sweden (P.S.)
| | - Hugh Salter
- Department of Laboratory Medicine, Karolinska Institutet, 141 52 Stockholm, Sweden
| | - Stefan Gilg
- Department of Medicine, Huddinge, Karolinska Institutet, 141 86 Stockholm, Sweden (P.S.)
| | - Gösta Eggertsen
- Department of Clinical Chemistry, Karolinska University Hospital, 141 86 Stockholm, Sweden
- Department of Medicine, Huddinge, Karolinska Institutet, 141 86 Stockholm, Sweden (P.S.)
| | - Per Stål
- Department of Medicine, Huddinge, Karolinska Institutet, 141 86 Stockholm, Sweden (P.S.)
- Division of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, 141 86 Stockholm, Sweden
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Wodaje T, Mahdi A, Venkateshvaran A, Häbel H, Zenlander R, Gaylard B, Angelin B, Pernow J, Brinck J. Higher prevalence of coronary microvascular dysfunction in asymptomatic individuals with high levels of lipoprotein(a) with and without heterozygous familial hypercholesterolaemia. Atherosclerosis 2024; 389:117439. [PMID: 38219650 DOI: 10.1016/j.atherosclerosis.2023.117439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 12/22/2023] [Accepted: 12/22/2023] [Indexed: 01/16/2024]
Abstract
BACKGROUND AND AIMS Microvascular dysfunction underlies many cardiovascular disease conditions; little is known regarding its presence in individuals with high levels of lipoprotein(a) [Lp(a)]. The aim of the present study was to determine the frequency of microvascular dysfunction among such subjects with and without concomitant familial hypercholesterolemia (FH). METHODS Four groups of asymptomatic individuals aged 30-59 years, without manifest cardiovascular disease, were recruited (n = 30 per group): controls with Lp(a) < 30 nmol/L, mutation-confirmed FH with Lp(a) < 30 nmol/L, or >125 nmol/L, and individuals with isolated Lp(a) > 125 nmol/L. Participants underwent evaluation of myocardial microvascular function by measuring coronary flow reserve (CFR) using transthoracic Doppler echocardiography, and of peripheral microvascular endothelial function by peripheral arterial tonometry. RESULTS The groups were balanced in age, sex, and body mass index. Each of the three dyslipoproteinaemic groups had a greater proportion of individuals with impaired coronary flow reserve, 30%, compared to 6.7% of controls (p = 0.014). The median CFR levels did not differ significantly between the four groups, however. Cholesterol-lowering treatment time was longer in the individuals with normal than in those with impaired CFR in the FH + Lp(a) > 125 group (p = 0.023), but not in the group with FH + Lp(a) < 30 (p = 0.468). There was no difference in peripheral endothelial function between the groups. CONCLUSIONS Coronary microvascular dysfunction is more prevalent in asymptomatic individuals with isolated Lp(a) elevation and in heterozygous FH both with and without high Lp(a) compared to healthy controls. Cholesterol-lowering treatment could potentially prevent the development of microvascular dysfunction.
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Affiliation(s)
- Tigist Wodaje
- Cardio Metabolic Unit, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden; Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden
| | - Ali Mahdi
- Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden; Division of Cardiology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Ashwin Venkateshvaran
- Department of Clinical Sciences, Lund University, Lund, Sweden; Division of Clinical Physiology, Skane University Hospital, Lund, Sweden
| | - Henrike Häbel
- Division of Learning, Informatics, Management and Ethics, Karolinska Institutet, Stockholm, Sweden
| | - Robin Zenlander
- Department of Medicine Huddinge and Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden; Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
| | - Benjamin Gaylard
- Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden
| | - Bo Angelin
- Cardio Metabolic Unit, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden; Department of Endocrinology, Karolinska University Hospital, Stockholm, Sweden
| | - John Pernow
- Department of Cardiology, Karolinska University Hospital, Stockholm, Sweden; Division of Cardiology, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Jonas Brinck
- Cardio Metabolic Unit, Department of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden; Department of Endocrinology, Karolinska University Hospital, Stockholm, Sweden.
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Zenlander R, Fredolini C, Schwenk JM, Rydén I, Påhlsson P, Löwbeer C, Eggertsen G, Stål P. A wide scan of plasma proteins demonstrates thioredoxin reductase 1 as a potential new diagnostic biomarker for hepatocellular carcinoma. Scand J Gastroenterol 2023; 58:998-1008. [PMID: 37017178 DOI: 10.1080/00365521.2023.2194008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 03/12/2023] [Accepted: 03/17/2023] [Indexed: 04/06/2023]
Abstract
BACKGROUND Patients with liver cirrhosis are recommended ultrasonography screening for early detection of hepatocellular carcinoma to increase the chances of curative treatment. However, ultrasonography alone lacks in sensitivity. Adding plasma biomarkers may increase the detection rate. We performed a broad exploratory analysis to find new plasma proteins with potential applicability for HCC screening in patients with cirrhosis. METHODS In a protein discovery cohort of 172 patients with cirrhosis or HCC, we screened for 481 proteins with suspension bead array or proximity extension assay. From these, 24 proteins were selected for further analysis in a protein verification cohort (n = 160), using ELISA, Luminex or an electrochemiluminescence platform. A cut-off model and a stepwise logistic regression model were used to find combinations of proteins with the best discriminatory performance between HCC and cirrhosis. RESULTS Stepwise logistic regression revealed alpha-fetoprotein (AFP), decarboxy-prothrombin (DCP), thioredoxin reductase 1 (TXNRD1), and fibroblast growth factor 21 (FGF21) as the proteins with the best discriminatory performance between HCC and cirrhosis. Adding TXNRD1 to DCP and AFP increased the AUC from 0.844 to 0.878, and combining AFP, DCP and TXNRD1 with age and sex resulted in an AUC of 0.920. FGF21, however, did not further increase the performance when including age and sex. CONCLUSION In the present study, TXNRD1 improves the sensitivity and specificity of AFP and DCP as HCC screening tools in patients with cirrhosis. We suggest that TXNRD1 should be validated in prospective settings as a new complementary HCC biomarker together with AFP and DCP.
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Affiliation(s)
- Robin Zenlander
- Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Claudia Fredolini
- Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Solna, Sweden
| | - Jochen M Schwenk
- Science for Life Laboratory, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Solna, Sweden
| | - Ingvar Rydén
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Peter Påhlsson
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden
| | - Christian Löwbeer
- Department of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden
- Department of Clinical Chemistry, SYNLAB Sverige, Täby, Sweden
| | - Gösta Eggertsen
- Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Per Stål
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
- Division of Hepatology, Department of Upper GI diseases, Karolinska University Hospital, Stockholm, Sweden
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Holmer M, Ekstedt M, Nasr P, Zenlander R, Wester A, Tavaglione F, Romeo S, Kechagias S, Stål P, Hagström H. Effect of common genetic variants on the risk of cirrhosis in non-alcoholic fatty liver disease during 20 years of follow-up. Liver Int 2022; 42:2769-2780. [PMID: 36166317 PMCID: PMC9828463 DOI: 10.1111/liv.15438] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 09/11/2022] [Accepted: 09/25/2022] [Indexed: 01/20/2023]
Abstract
BACKGROUND AND AIMS Several genotypes associate with a worse histopathological profile in patients with non-alcoholic fatty liver disease (NAFLD). Whether genotypes impact long-term outcomes is unclear. We investigated the importance of PNPLA3, TM6SF2, MBOAT7 and GCKR genotype for the development of severe outcomes in NAFLD. METHOD DNA samples were collected from 546 patients with NAFLD. Advanced fibrosis was diagnosed by liver biopsy or elastography. Non-alcoholic steatohepatitis (NASH) was histologically defined. Additionally, 5396 controls matched for age, sex and municipality were identified from population-based registers. Events of severe liver disease and all-cause mortality were collected from national registries. Hazard ratios (HRs) adjusted for age, sex, body mass index and type 2 diabetes were estimated with Cox regression. RESULTS In NAFLD, the G/G genotype of PNPLA3 was associated with a higher prevalence of NASH at baseline (odds ratio [OR] 3.67, 95% CI = 1.66-8.08), but not with advanced fibrosis (OR 1.81, 95% CI = 0.79-4.14). After up to 40 years of follow-up, the PNPLA3 G/G genotype was associated with a higher rate of severe liver disease (adjusted hazard ratio [aHR] 2.27, 95% CI = 1.15-4.47) compared with the C/C variant. NAFLD patients developed cirrhosis at a higher rate than controls (aHR 9.00, 95% CI = 6.85-11.83). The PNPLA3 G/G genotype accentuated this rate (aHR 23.32, 95% = CI 9.14-59.47). Overall mortality was not affected by any genetic variant. CONCLUSION The PNPLA3 G/G genotype is associated with an increased rate of cirrhosis in NAFLD. Our results suggest that assessment of the PNPLA3 genotype is of clinical relevance in patients with NAFLD to individualize monitoring and therapeutic strategies.
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Affiliation(s)
- Magnus Holmer
- Division of Liver and Pancreatic disease, Department of Upper GIKarolinska University HospitalStockholmSweden,Department of Medicine, HuddingeKarolinska InstitutetStockholmSweden
| | - Mattias Ekstedt
- Department of Gastroenterology and Hepatology, Department of Health, Medicine, and Caring SciencesLinköping UniversityLinköpingSweden
| | - Patrik Nasr
- Department of Medicine, HuddingeKarolinska InstitutetStockholmSweden,Department of Gastroenterology and Hepatology, Department of Health, Medicine, and Caring SciencesLinköping UniversityLinköpingSweden
| | - Robin Zenlander
- Department of Medicine, HuddingeKarolinska InstitutetStockholmSweden
| | - Axel Wester
- Department of Medicine, HuddingeKarolinska InstitutetStockholmSweden
| | - Federica Tavaglione
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, Wallenberg LaboratoryUniversity of GothenburgGothenburgSweden
| | - Stefano Romeo
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy, Wallenberg LaboratoryUniversity of GothenburgGothenburgSweden,Department of CardiologySahlgrenska University HospitalGothenburgSweden
| | - Stergios Kechagias
- Department of Gastroenterology and Hepatology, Department of Health, Medicine, and Caring SciencesLinköping UniversityLinköpingSweden
| | - Per Stål
- Division of Liver and Pancreatic disease, Department of Upper GIKarolinska University HospitalStockholmSweden,Department of Medicine, HuddingeKarolinska InstitutetStockholmSweden
| | - Hannes Hagström
- Division of Liver and Pancreatic disease, Department of Upper GIKarolinska University HospitalStockholmSweden,Department of Medicine, HuddingeKarolinska InstitutetStockholmSweden,Clinical Epidemiology Unit, Department of Medicine, SolnaKarolinska InstitutetStockholmSweden
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Zenlander R, Havervall S, Magnusson M, Engstrand J, Ågren A, Thålin C, Stål P. Neutrophil extracellular traps in patients with liver cirrhosis and hepatocellular carcinoma. Sci Rep 2021; 11:18025. [PMID: 34504150 PMCID: PMC8429678 DOI: 10.1038/s41598-021-97233-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 08/20/2021] [Indexed: 12/20/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are web-like structures consisting of DNA, histones and granule proteins, released from neutrophils in thrombus formation, inflammation, and cancer. We asked if plasma levels of the NET markers myeloperoxidase (MPO)-DNA and citrullinated histone H3 (H3Cit)-DNA, are elevated in liver cirrhosis and hepatocellular carcinoma (HCC) and if the levels correlate with clinical parameters. MPO-DNA, H3Cit-DNA, and thrombin–antithrombin (TAT) complex, as a marker of coagulation activity, were measured using ELISA in plasma from 82 patients with HCC, 95 patients with cirrhosis and 50 healthy controls. Correlations were made to clinical parameters and laboratory data and patients were followed for a median of 22.5 months regarding thrombosis development. H3Cit-DNA was significantly (p < 0.01) elevated in plasma from cirrhosis (66.4 ng/mL) and HCC (63.8 ng/mL) patients compared to healthy controls (31.8 ng/mL). TAT levels showed similar pattern (3.1, 3.7, and 0.0 µg/mL respectively, p < 0.01). MPO-DNA was significantly (p < 0.01) elevated in cirrhosis patients (0.53 O.D.) as compared to controls (0.33 O.D.). Levels of MPO-DNA and H3Cit-DNA correlated positively with Child–Pugh and MELD score. TAT was increased in all Child–Pugh and MELD groups. In multivariable logistic regression, Child B and C liver cirrhosis were independent predictors of elevated H3Cit-DNA in plasma. Levels of MPO-DNA and H3Cit-DNA were similar in patients with or without history of thrombosis, or thrombus formation during follow-up. In conclusion, plasma markers of NET formation are elevated in liver cirrhosis and correlate to the degree of liver dysfunction in patients with liver cirrhosis and/or HCC. The presence of HCC did not further increase the plasma levels of NET markers as compared to patients with cirrhosis only.
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Affiliation(s)
- Robin Zenlander
- Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden. .,Department of Laboratory Medicine, Karolinska Institutet, Huddinge, Stockholm, Sweden. .,Department of Medicine, Karolinska Institutet, Huddinge, Stockholm, Sweden.
| | - Sebastian Havervall
- Division of Gastroenterology, Department of Specialized Medicine, Danderyd Hospital, Stockholm, Sweden.,Department of Clinical Sciences, Karolinska Institutet Danderyd Hospital, Stockholm, Sweden
| | - Maria Magnusson
- Division of Pediatrics, CLINTEC, Karolinska Institutet, Stockholm, Sweden.,Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.,Coagulation Unit, Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Jennie Engstrand
- Division of Surgery, Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Anna Ågren
- Department of Clinical Sciences, Karolinska Institutet Danderyd Hospital, Stockholm, Sweden.,Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden.,Coagulation Unit, Department of Hematology, Karolinska University Hospital, Stockholm, Sweden
| | - Charlotte Thålin
- Department of Clinical Sciences, Karolinska Institutet Danderyd Hospital, Stockholm, Sweden.,Department of Internal Medicine and Infectious Diseases, Danderyd Hospital, Stockholm, Sweden
| | - Per Stål
- Department of Medicine, Karolinska Institutet, Huddinge, Stockholm, Sweden.,Division of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, Stockholm, Sweden
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Zenlander R, von Euler M, Antovic J, Berglund A. Point-of-care versus central laboratory testing of INR in acute stroke. Acta Neurol Scand 2018; 137:252-255. [PMID: 29068041 DOI: 10.1111/ane.12860] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2017] [Indexed: 12/19/2022]
Abstract
OBJECTIVES Effective anticoagulant therapy is a contraindication to thrombolysis, which is an effective treatment of ischemic stroke if given within 4.5 hours of symptom onset. INR above 1.7 is generally considered a contraindication for thrombolysis. Rapid measurement of INR in warfarin-treated patients is therefore of major importance in order to be able to decide on thrombolysis or not. We asked whether INR measured on a point-of-care instrument would be as good as a central laboratory instrument. MATERIAL AND METHODS A total of 529 consecutive patients who arrived at the emergency department at a large urban teaching hospital with stroke symptoms were enrolled in the study. INR was measured with a CoaguChek and a Sysmex instrument. Basic clinical information such as age, sex, and diagnosis (if available) was recorded. INR from the instruments was compared using linear regression and Bland-Altman plot. RESULTS Of 529 patients, 459 had INR results from both instruments. Among these, 3 patients were excluded as outliers. The rest (n = 456) showed good correlation between the methods (R2 = 0.97). In the current setting, CoaguChek was in median 63 minutes faster than Sysmex. CONCLUSION Our results indicate that point-of-care testing is a safe mean to rapidly acquire a patient's INR value in acute clinical situations.
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Affiliation(s)
- R. Zenlander
- Department of Clinical Chemistry Karolinska University Hospital Stockholm Sweden
| | - M. von Euler
- Department of Clinical Pharmacology Karolinska University Hospital Stockholm Sweden
- Department of Clinical Science and Education Karolinska Institutet Stockholm Sweden
- Department of Medicine Solna Karolinska Institutet Stockholm Sweden
| | - J. Antovic
- Department of Clinical Chemistry Karolinska University Hospital Stockholm Sweden
- Department of Coagulation Research Institute for Molecular Medicine and Surgery Karolinska Institutet Stockholm Sweden
| | - A. Berglund
- Department of Clinical Science and Education Karolinska Institutet Stockholm Sweden
- Department of Internal Medicine Section of Neurology Södersjukhuset Stockholm Sweden
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Åström E, Stål P, Zenlander R, Edenvik P, Alexandersson C, Haglund M, Rydén I, Påhlsson P. Reverse lectin ELISA for detecting fucosylated forms of α1-acid glycoprotein associated with hepatocellular carcinoma. PLoS One 2017; 12:e0173897. [PMID: 28296934 PMCID: PMC5352000 DOI: 10.1371/journal.pone.0173897] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 02/28/2017] [Indexed: 02/07/2023] Open
Abstract
Altered fucosylation of glycoproteins is associated with development of hepatocellular carcinoma (HCC). Lectins have been commonly used to assay changes in fucosylation of plasma glycoproteins. In the present study a recombinantly engineered form of the fucose binding lectin Aleuria aurantia (AAL) consisting of a single binding site for fucose (S2), was used to construct a reverse lectin ELISA method. Microtiter plates coated with the S2 lectin were used to capture glycoproteins from plasma samples followed by antibody detection of S2-bound fucosylated α1-acid glycoprotein (S2-bound AGP). The method was used to compare the level of S2-bound AGP in serum samples from a small cohort of patients with hepatitis, cirrhosis or HCC. Using the reverse S2 lectin ELISA it was shown that the levels of S2-bound AGP was significantly higher in HCC patients compared to non-cancer patients and that there was also a significant elevation of S2-bound AGP in HCC patients compared to cirrhosis patients. There was no correlation between the level of S2-bound AGP and total AGP concentration. The performance of S2-bound AGP in differentiating HCC from cirrhosis samples or hepatitis samples were compared to other markers. A combination of S2-bound AGP, α-fetoprotein and AGP concentration showed performances giving area under receiver operating curves of 0.87 and 0.95 respectively.
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Affiliation(s)
- Eva Åström
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
- * E-mail:
| | - Per Stål
- Department of Medicine, Division of Gastroenterology and Hepatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Robin Zenlander
- Department of Medicine, Division of Gastroenterology and Hepatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Pia Edenvik
- Department of Medicine, Division of Gastroenterology and Hepatology, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | | | - Mats Haglund
- Department of Infectious Diseases, Kalmar County Hospital, Kalmar, Sweden
| | - Ingvar Rydén
- Department of Clinical Chemistry, Kalmar County Hospital, Kalmar, Sweden
| | - Peter Påhlsson
- Department of Clinical and Experimental Medicine, Linköping University, Linköping, Sweden
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