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Mortensen KM, Itenov TS, Stensballe J, Hillig T, Jensen CAJ, Schønemann-Lund M, Bestle MH. Changes in nitric oxide inhibitors and mortality in critically ill patients: a cohort study. Ann Intensive Care 2024; 14:133. [PMID: 39190083 DOI: 10.1186/s13613-024-01362-7] [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: 03/12/2024] [Accepted: 08/07/2024] [Indexed: 08/28/2024] Open
Abstract
BACKGROUND Optimal balance between macro- and microcirculation in critically ill patients is crucial for ensuring optimal organ perfusion. Nitric oxide (NO) is a regulator of vascular hemostasis and tone. The availability of NO is controlled by asymmetric dimethylarginine (ADMA), symmetric dimethylarginine (SDMA), and the availability of the NO substrates arginine and homoarginine. We investigated the changes in plasma concentrations of ADMA, SDMA, arginine, and homoarginine days 1-5 of intensive care unit (ICU) admission and the association between the change in concentration days 1-3 and 30-day all-cause mortality. METHODS Single-center cohort study of adult critically ill patients from the ICU at Copenhagen University Hospital - North Zealand. ADMA, SDMA, arginine, and homoarginine (NO-biomarkers) were measured on days 1-5. Initially, we determined the changes in NO-biomarkers days 1-5 with linear mixed models, and subsequently how the changes in NO-biomarkers days 1-3 were associated with 30-day all-cause mortality. Post-hoc we analyzed the association between plasma concentration at admission and 30-day all-cause mortality. RESULTS In total 567 out of 577 patients had plasma samples from days 1-5. Plasma concentrations of ADMA and arginine increased from days 1-5. SDMA concentrations increased from days 1-2, followed by a decrease from days 2-5. Concentrations of homoarginine did not change from days 1-3 but slightly increased from days 3-5. In total 512 patients were alive 3 days after ICU admission. Among these patients, a daily twofold increase in ADMA concentration from days 1-3 was associated with decreased mortality in multivariate analysis (HR 0.45; 95% CI 0.21-0.98; p = 0.046). An increase in SDMA, arginine, or homoarginine was not associated with mortality. Post-hoc we found that a twofold increase in ADMA or SDMA concentrations at admission was associated with mortality (HR 1.78; 95% CI 1.24-2.57; p = 0.0025, and HR 1.41; 95% CI 1.05-1.90; p = 0.024, respectively). CONCLUSIONS Increasing ADMA concentrations on days 1-3 are inversely associated with mortality, however not with the same strength as high ADMA or SDMA concentrations at admission. We suggest that admission concentrations are the focus of future research on ADMA and SDMA as predictors of mortality or potential therapeutical targets in ICU patients.
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Affiliation(s)
- Karoline Myglegård Mortensen
- Department of Anesthesiology and Intensive Care, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark.
| | - Theis Skovsgaard Itenov
- Department of Anesthesiology and Intensive Care, Bispebjerg and Frederiksberg Hospitals, Copenhagen, Denmark
| | - Jakob Stensballe
- Section for Transfusion Medicine, Capital Region Blood Bank, Rigshospitalet, Copenhagen, Denmark
- Department of Anesthesiology, Surgery and Trauma Center, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | - Thore Hillig
- Department of Clinical Biochemistry, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
| | - Claus Antonio Juel Jensen
- Department of Clinical Biochemistry, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
| | - Martin Schønemann-Lund
- Department of Anesthesiology and Intensive Care, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
| | - Morten Heiberg Bestle
- Department of Anesthesiology and Intensive Care, Copenhagen University Hospital - North Zealand, Hilleroed, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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Zhou P, Guo QQ, Wang FX, Zhou L, Hu HF, Deng Z. Nonlinear relationship between platelet count and 30-day in-hospital mortality in ICU acute respiratory failure patients: a multicenter retrospective cohort study. Eur J Med Res 2024; 29:312. [PMID: 38849948 PMCID: PMC11161993 DOI: 10.1186/s40001-024-01909-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 05/29/2024] [Indexed: 06/09/2024] Open
Abstract
BACKGROUND Limited evidence exists regarding the link between platelet count and 30-day in-hospital mortality in acute respiratory failure (ARF) patients. Thus, this study aims to investigate this association among ICU patients experiencing acute respiratory failure. METHODS We conducted a retrospective cohort study across multiple centers, utilizing data from the US eICU-CRD v2.0 database covering 22,262 patients with ARF in the ICU from 2014 to 2015. Our aim was to investigate the correlation between platelet count and 30-day in-hospital mortality using binary logistic regression, subgroup analyses, and smooth curve fitting. RESULTS The 30-day in-hospital mortality rate was 19.73% (4393 out of 22,262), with a median platelet count of 213 × 109/L. After adjusting for covariates, our analysis revealed an inverse association between platelet count and 30-day in-hospital mortality (OR = 0.99, 95% CI 0.99, 0.99). Subgroup analyses supported the robustness of these findings. Furthermore, a nonlinear relationship was identified between platelet count and 30-day in-hospital mortality, with the inflection point at 120 × 109/L. Below the inflection point, the effect size (OR) was 0.89 (0.87, 0.91), indicating a significant association. However, beyond this point, the relationship was not statistically significant. CONCLUSION This study establishes a clear negative association between platelet count and 30-day in-hospital mortality among ICU patients with ARF. Furthermore, we have identified a nonlinear relationship with saturation effects, indicating that among ICU patients with acute respiratory failure, the lowest 30-day in-hospital mortality rate occurs when the baseline platelet count is approximately 120 × 109/L.
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Affiliation(s)
- Pan Zhou
- Department of Emergency Medicine, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China
| | - Qin-Qin Guo
- Department of Emergency Medicine, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China
| | - Fang-Xi Wang
- Department of Emergency Medicine, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China
| | - Li Zhou
- Department of Emergency Medicine, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China
| | - Hao-Fei Hu
- Department of Nephrology, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China.
| | - Zhe Deng
- Department of Emergency Medicine, Shenzhen Second People's Hospital/The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, 518035, China.
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Johansson PI, Henriksen HH, Karvelsson ST, Rolfsson Ó, Schønemann-Lund M, Bestle MH, McGarrity S. LASSO regression shows histidine and sphingosine 1 phosphate are linked to both sepsis mortality and endothelial damage. Eur J Med Res 2024; 29:71. [PMID: 38245777 PMCID: PMC10799523 DOI: 10.1186/s40001-023-01612-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 12/21/2023] [Indexed: 01/22/2024] Open
Abstract
Sepsis is a major cause of death worldwide, with a mortality rate that has remained stubbornly high. The current gold standard of risk stratifying sepsis patients provides limited mechanistic insight for therapeutic targeting. An improved ability to predict sepsis mortality and to understand the risk factors would allow better treatment targeting. Sepsis causes metabolic dysregulation in patients; therefore, metabolomics offers a promising tool to study sepsis. It is also known that that in sepsis endothelial cells affecting their function regarding blood clotting and vascular permeability. We integrated metabolomics data from patients admitted to an intensive care unit for sepsis, with commonly collected clinical features of their cases and two measures of endothelial function relevant to blood vessel function, platelet endothelial cell adhesion molecule and soluble thrombomodulin concentrations in plasma. We used least absolute shrinkage and selection operator penalized regression, and pathway enrichment analysis to identify features most able to predict 30-day survival. The features important to sepsis survival include carnitines, and amino acids. Endothelial proteins in plasma also predict 30-day mortality and the levels of these proteins also correlate with a somewhat overlapping set of metabolites. Overall metabolic dysregulation, particularly in endothelial cells, may be a contributory factor to sepsis response. By exploring sepsis metabolomics data in conjunction with clinical features and endothelial proteins we have gained a better understanding of sepsis risk factors.
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Affiliation(s)
- Pär I Johansson
- CAG Center for Endotheliomics, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Hanne H Henriksen
- CAG Center for Endotheliomics, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark
| | | | - Óttar Rolfsson
- Biomedical Center, University of Iceland, Reykjavik, Iceland
| | - Martin Schønemann-Lund
- Department of Anaesthesiology and Intensive Care, Copenhagen University Hospital - North Zealand, Hillerod, Denmark
| | - Morten H Bestle
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
- Department of Anaesthesiology and Intensive Care, Copenhagen University Hospital - North Zealand, Hillerod, Denmark
| | - Sarah McGarrity
- Biomedical Center, University of Iceland, Reykjavik, Iceland.
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Gruen DS, Brown JB, Guyette FX, Johansson PI, Stensballe J, Li SR, Leeper CM, Eastridge BJ, Nirula R, Vercruysse GA, O’Keeffe T, Joseph B, Neal MD, Sperry JL. Prehospital tranexamic acid is associated with a dose-dependent decrease in syndecan-1 after trauma: A secondary analysis of a prospective randomized trial. J Trauma Acute Care Surg 2023; 95:642-648. [PMID: 37125811 PMCID: PMC10615664 DOI: 10.1097/ta.0000000000003955] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/25/2023] [Accepted: 03/02/2023] [Indexed: 05/02/2023]
Abstract
BACKGROUND In the Study of Tranexamic Acid During Air and Ground Prehospital Transport (STAAMP) Trial, prehospital tranexamic acid (TXA) was associated with lower mortality in specific patient subgroups. The underlying mechanisms responsible for a TXA benefit remain incompletely characterized. We hypothesized that TXA may mitigate endothelial injury and sought to assess whether TXA was associated with decreased endothelial or tissue damage markers among all patients enrolled in the STAAMP Trial. METHODS We collected blood samples from STAAMP Trial patients and measured markers of endothelial function and tissue damage including syndecan-1, soluble thrombomodulin (sTM), and platelet endothelial cell adhesion molecule-1 at hospital admission (0 hours) and 12 hours, 24 hours, and 72 hours after admission. We compared these marker values for patients in each treatment group during the first 72 hours, and modeled the relationship between TXA and marker concentration using regression analysis to control for potential confounding factors. RESULTS We analyzed samples from 766 patients: 383 placebo, 130 abbreviated dosing, 119 standard dosing, and 130 repeat dosing. Lower levels of syndecan-1, TM, and platelet endothelial cell adhesion molecule measured within the first 72 hours of hospital admission were associated with survival at 30 days ( p < 0.001). At hospital admission, syndecan-1 was lower in the TXA group (28.30 [20.05, 42.75] vs. 33.50 [23.00, 54.00] p = 0.001) even after controlling for patient, injury, and prehospital factors ( p = 0.001). For every 1 g increase in TXA administered over the first 8 hours of prehospital transport and hospital admission, there was a 4-ng/mL decrease in syndecan-1 at 12 hours controlling for patient, injury, and treatment factors ( p = 0.03). CONCLUSION Prehospital TXA was associated with decreased syndecan-1 at hospital admission. Syndecan-1 measured 12 hours after admission was inversely related to the dose of TXA received. Early prehospital and in-hospital TXA may decrease endothelial glycocalyx damage or upregulate vascular repair mechanisms in a dose-dependent fashion. LEVEL OF EVIDENCE Therapeutic/Care Management; Level III.
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Wang M, Feng J, Zhou D, Wang J. Bacterial lipopolysaccharide-induced endothelial activation and dysfunction: a new predictive and therapeutic paradigm for sepsis. Eur J Med Res 2023; 28:339. [PMID: 37700349 PMCID: PMC10498524 DOI: 10.1186/s40001-023-01301-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/18/2023] [Indexed: 09/14/2023] Open
Abstract
BACKGROUND Lipopolysaccharide, a highly potent endotoxin responsible for severe sepsis, is the major constituent of the outer membrane of gram-negative bacteria. Endothelial cells participate in both innate and adaptive immune responses as the first cell types to detect lipopolysaccharide or other foreign debris in the bloodstream. Endothelial cells are able to recognize the presence of LPS and recruit specific adaptor proteins to the membrane domains of TLR4, thereby initiating an intracellular signaling cascade. However, lipopolysaccharide binding to endothelial cells induces endothelial activation and even damage, manifested by the expression of proinflammatory cytokines and adhesion molecules that lead to sepsis. MAIN FINDINGS LPS is involved in both local and systemic inflammation, activating both innate and adaptive immunity. Translocation of lipopolysaccharide into the circulation causes endotoxemia. Endothelial dysfunction, including exaggerated inflammation, coagulopathy and vascular leakage, may play a central role in the dysregulated host response and pathogenesis of sepsis. By discussing the many strategies used to treat sepsis, this review attempts to provide an overview of how lipopolysaccharide induces the ever more complex syndrome of sepsis and the potential for the development of novel sepsis therapeutics. CONCLUSIONS To reduce patient morbidity and mortality, preservation of endothelial function would be central to the management of sepsis.
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Affiliation(s)
- Min Wang
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China
| | - Jun Feng
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China
| | - Daixing Zhou
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
| | - Junshuai Wang
- Department of Emergency Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
- Department of Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1095 JieFang Avenue, Wuhan, 430030, Hubei, People's Republic of China.
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张 雪, 陈 思, 郭 军, 张 中, 胡 海, 杨 家, 康 焰. [Application Value of Novel Coagulation Markers in Predicting Postoperarative Complications in the Early Stage After Liver Transplantation]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2023; 54:1024-1029. [PMID: 37866963 PMCID: PMC10579085 DOI: 10.12182/20230960105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Indexed: 10/24/2023]
Abstract
Objective To investigate the relationship between thrombin-antithrombin complex (TAT), plasmin-α 2-plasmininhibitor complex (PIC), soluble thrombomodulin (sTM), and tissue plasminogen activator-inhibitor complex (tPAIC) and postoperative complications in the early stage after liver transplantation (LT). Methods We analyzed the perioperative clinical data, including plasma TAT, PIC, sTM, and tPAIC, of 130 post-LT patients admitted to the intensive care unit (ICU), West China Hospital, Sichuan University between December 2021 and November 2022. Patients were divided into two groups, a complication group and a non-complication group, according to whether they experienced complications of Clavien-Dindo (CD) grade Ⅲb and above within 30 days after the surgery. Univariate analysis and binary multivariate logistic regression models were used to determine the risk factors for complications within 30 days post-LT. Results The incidence of complications of CD grade Ⅲb and above within 30 days post-LT was 33.1% (43/130). Patients in the complication group had significantly higher scores for the Model for End-Stage Liver Disease (MELD), operative time, intraoperative red blood cell transfusion volume, intraoperative plasma transfusion volume, and plasma TAT, PIC, sTM and tPAIC measured at the time of admission to ICU after the operation than those in the non-complication group did (all P<0.05). Logistic regression showed that for every single U of red blood cells transfused during the transplant surgery, the probabilities of complications within 30 days post-LT increased by 15.1% (95% confidence interval [ C I]: 1.070-1.239, P<0.001) and for the increase of every single TU/mL of plasma sTM measured upon post-LT admission to ICU, the probabilities of complications increased by 13.7% (95% CI: 1.060-1.220, P<0.001). Conclusion Plasma sTM measured upon admission to ICU after LT is an independent risk factor for complications within 30 days post-LT, and additional assessment of sTM may help predict complications in the early stage post-LT.
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Affiliation(s)
- 雪 张
- 四川大学华西医院 重症医学科 (成都 610041)Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - 思敏 陈
- 四川大学华西医院 重症医学科 (成都 610041)Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - 军 郭
- 四川大学华西医院 重症医学科 (成都 610041)Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - 中伟 张
- 四川大学华西医院 重症医学科 (成都 610041)Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - 海 胡
- 四川大学华西医院 重症医学科 (成都 610041)Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - 家印 杨
- 四川大学华西医院 重症医学科 (成都 610041)Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - 焰 康
- 四川大学华西医院 重症医学科 (成都 610041)Department of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
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Xie Z, Børset M, Svéen K, Bøe OW, Chan EC, Lack JB, Hornick KM, Verlicchi F, Eisch AR, Melchio R, Dudek AZ, Druey KM. Markers of endothelial glycocalyx dysfunction in Clarkson disease. Lab Invest 2022; 20:380. [PMID: 36038904 PMCID: PMC9421105 DOI: 10.1186/s12967-022-03587-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 08/12/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Clarkson disease (monoclonal gammopathy-associated idiopathic systemic capillary leak syndrome, ISCLS) is a rare idiopathic condition marked by transient, relapsing-remitting episodes of systemic microvascular hyper-permeability, which liberates plasma fluid and macromolecules into the peripheral tissues. This pathology manifests clinically as the abrupt onset of hypotensive shock, hemoconcentration, and hypoalbuminemia. METHODS We analysed endothelial glycocalyx (eGCX)-related markers in plasma from patients with ISCLS during acute disease flares and convalescence by ELISA and comprehensive proteomic profiling. We evaluated eGCX-related components and gene expression in cultured endothelial cells using RNA-sequencing, real-time PCR, and fluorescence staining. RESULTS Serum levels of eGCX-related core components including hyaluronic acid (HA) and the core proteoglycan soluble syndecan-1 (sCD138) were elevated at baseline and during acute ISCLS flares. Serial measurements demonstrated that sCD138 levels peaked during the recovery (post-leak) phase of the illness. Proteomic analysis of matched acute and convalescent ISCLS plasma revealed increased abundance of eGCX-related proteins, including glypicans, thrombospondin-1 (TSP-1), and eGCX-degrading enzymes in acute compared to remission plasma. Abundance of endothelial cell damage markers did not differ in acute and baseline plasma. Expression of several eGCX-related genes and surface carbohydrate content in endothelial cells from patients with ISCLS did not differ significantly from that observed in healthy control cells. CONCLUSIONS eGCX dysfunction, but not endothelial injury, may contribute to clinical symptoms of acute ISCLS. Serum levels of of eGCX components including sCD138 may be measured during acute episodes of ISCLS to monitor clinical status and therapeutic responses.
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Affiliation(s)
- Zhihui Xie
- Lung and Vascular Inflammation Section, Laboratory of Allergic Diseases, National, Institute of Allergy and Infectious Diseases/National Institutes of Health, (NIAID/NIH), 10 Center Drive, Room 11N238A, Bethesda, MD, 20892, USA
| | - Magne Børset
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.,Department of Immunology and Transfusion Medicine, St. Olav's University, Hospital, Trondheim, Norway
| | - Kjell Svéen
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Ole Wilhelm Bøe
- Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Eunice C Chan
- Lung and Vascular Inflammation Section, Laboratory of Allergic Diseases, National, Institute of Allergy and Infectious Diseases/National Institutes of Health, (NIAID/NIH), 10 Center Drive, Room 11N238A, Bethesda, MD, 20892, USA
| | - Justin B Lack
- NIAID Collaborative Bioinformatics Resource, NIAID/NIH, Health, Bethesda, MD, 20892, USA
| | - Katherine M Hornick
- NIAID Collaborative Bioinformatics Resource, NIAID/NIH, Health, Bethesda, MD, 20892, USA
| | - Franco Verlicchi
- Transfusion Medicine Faenza-Lugo, Transfusion Service Ravenna, Romagna Health Unit, Ravenna, Italy
| | - A Robin Eisch
- Lung and Vascular Inflammation Section, Laboratory of Allergic Diseases, National, Institute of Allergy and Infectious Diseases/National Institutes of Health, (NIAID/NIH), 10 Center Drive, Room 11N238A, Bethesda, MD, 20892, USA
| | - Remo Melchio
- Department of Internal Medicine, Santa Croce E Carle' Hospital, Via Michele Coppino 26, Cuneo, Italy
| | | | - Kirk M Druey
- Lung and Vascular Inflammation Section, Laboratory of Allergic Diseases, National, Institute of Allergy and Infectious Diseases/National Institutes of Health, (NIAID/NIH), 10 Center Drive, Room 11N238A, Bethesda, MD, 20892, USA.
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