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Prabhakar AP, Lopez-Candales A. Uric acid and cardiovascular diseases: a reappraisal. Postgrad Med 2024:1-9. [PMID: 38973128 DOI: 10.1080/00325481.2024.2377952] [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: 02/20/2024] [Accepted: 07/05/2024] [Indexed: 07/09/2024]
Abstract
Serum uric acid (SUA) has garnered an increased interest in recent years as an important determinant of cardiovascular disease. Uric acid, a degradation product of purine metabolism, is affected by several inheritable and acquired factors, such as genetic mutation, metabolic syndrome, chronic kidney disease, and medication interactions. Even though elevated SUA have been commonly associated with the development of gout, it has significant impact in the development of hypertension, metabolic syndrome, and cardiovascular disease. Uric acid, in both crystalline and soluble forms, plays a key role in the induction of inflammatory cascade and development of atherosclerotic diseases. This concise reappraisal emphasizes key features about the complex and challenging role of uric acid in the development and progression of atherosclerosis and cardiovascular disease. It explores the pathogenesis and historical significance of uric acid, highlights the complex interplay between uric acid and components of metabolic syndrome, focuses on the pro-inflammatory and pro-atherogenic effects of uric acid, as well as discusses the role of urate lowering therapies in mitigating the risk of cardiovascular disease while providing the latest evidence to the healthcare professionals focusing on the clinical importance of SUA levels with regards to cardiovascular disease.
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Affiliation(s)
- Akruti Patel Prabhakar
- Department of Medicine, Wright State University Boonshoft School of Medicine, Dayton, OH, USA
| | - Angel Lopez-Candales
- Cardiology Service and Department of Medicine, Dayton Veteran Affairs Medical Center, Dayton, OH, USA
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2
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Zhang H, Zhang S, Chen L, Xu R, Zhu J. LC-HRMS-based metabolomics and lipidomics analyses of a novel probiotic Akkermansia Muciniphila in response to different nutritional stimulations. J Microbiol Methods 2024; 223:106975. [PMID: 38889842 DOI: 10.1016/j.mimet.2024.106975] [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: 05/11/2024] [Revised: 06/14/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
The mucin-degrading gut commensal Akkermansia muciniphila (A. muciniphila) negatively correlates with various diseases, including metabolic disorders, neurodegenerative disorders, and cancers, through interacting with host receptors by diverse molecules. Still, their exact metabolic capability within the nutrient-rich environment (such as in the human gut) is not fully characterized. Therefore, in the present study, we investigated the comprehensive metabolome and lipidome of A. muciniphila after supplementation of four major gut microbial nutrients: mucin, inorganic salts, bile salts, and short-chain fatty acids (SCFAs). Our results showed that mucin is the predominant driver of the different lipidomic and metabolomic profiles of A. muciniphila, and it promotes the overall growth of this bacteria. While the addition of inorganic salts, bile salts, and SCFAs was found to inhibit the growth of A. muciniphila. Interestingly, inorganic salts affected the purine metabolism in A. muciniphila cultures, while adding bile salts significantly increased the production of other bile acids and N-acyl amides. Lastly, SCFAs were identified to alter the A. muciniphila energy utilization of triglycerides, fatty acyls, and phosphatidylethanolamines. To our knowledge, this is the first study to examine the comprehensive lipidome and metabolome of A. muciniphila, which highlights the importance of nutritional impacts on the lipidome and metabolome of A. muciniphila and hence providing foundational knowledge to unveil the potential effects of A. muciniphila on host health.
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Affiliation(s)
- Huan Zhang
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Shiqi Zhang
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Li Chen
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Rui Xu
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America
| | - Jiangjiang Zhu
- Department of Human Sciences & James Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, United States of America.
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Biomarkers Predictive of Metabolic Syndrome and Cardiovascular Disease in Childhood Cancer Survivors. J Pers Med 2022; 12:jpm12060880. [PMID: 35743665 PMCID: PMC9225298 DOI: 10.3390/jpm12060880] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
The improvement in childhood cancer treatments resulted in a marked improvement in the survival of pediatric cancer patients. However, as survival increased, it was also possible to observe the long-term side effects of cancer therapies. Among these, metabolic syndrome is one of the most frequent long-term side effects, and causes high mortality and morbidity. Consequently, it is necessary to identify strategies that allow for early diagnosis. In this review, the pathogenetic mechanisms of metabolic syndrome and the potential new biomarkers that can facilitate its diagnosis in survivors of pediatric tumors are analyzed.
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Sulukan E, Baran A, Şenol O, Yildirim S, Mavi A, Ceyhun HA, Toraman E, Ceyhun SB. The synergic toxicity of temperature increases and nanopolystrene on zebrafish brain implies that global warming may worsen the current risk based on plastic debris. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 808:152092. [PMID: 34863762 DOI: 10.1016/j.scitotenv.2021.152092] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 06/13/2023]
Abstract
Global warming and plastic pollution are among the most important environmental problems today. Unfortunately, our world is warming more than expected and biological life, especially in the oceans, has come to the limit of the struggle for survival with the nano-scale plastic pollution that is constantly released from the main material. In this study, the synergic effect of one-degree temperature increase (28, 29, 30 °C) and 100 nm size polystyrene plastic nanoparticles on circadian rhythm, brain damage and metabolomics in zebrafish were investigated in an environment where temperature control with 0.05-degree precision is provided. A temperature increase of 1°, together with nanoplastic exposure, affected the circadian rhythm in zebrafish, caused damage to the brain and caused significant changes in the intensity of a total of 18 metabolites in different pathways. It was also detected Raman signals of polystyrene in the brain homogenate. As a consequence, it is suggested that one degree of temperature increase pave the way for degeneration in the brain by disrupting some metabolic pathways, thereby significantly increasing the negative effects of nano-plastic on behavior.
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Affiliation(s)
- Ekrem Sulukan
- Aquatic Biotechnology Laboratory, Fisheries Faculty, Atatürk University, Erzurum, Turkey; Aquaculture Department, Fisheries Faculty, Atatürk University, Erzurum, Turkey
| | - Alper Baran
- Aquatic Biotechnology Laboratory, Fisheries Faculty, Atatürk University, Erzurum, Turkey; Department of Food Quality Control and Analysis, Technical Vocational School, Atatürk University, Erzurum, Turkey
| | - Onur Şenol
- Department of Analytical Chemistry, Faculty of Pharmacy, Atatürk University, Erzurum, Turkey
| | - Serkan Yildirim
- Department of Pathology, Faculty of Veterinary, Atatürk University, Erzurum, Turkey
| | - Ahmet Mavi
- Department of Nanoscience and Nanoengineering, Institute of Science, Atatürk University, Erzurum, Turkey; Department of Mathematics and Science Education, Education Faculty of Kazım Karabekir, Atatürk University, Erzurum, Turkey
| | - Hacer Akgül Ceyhun
- Department of Psychiatry, Faculty of Medicine, Atatürk University, Erzurum, Turkey
| | - Emine Toraman
- Department of Molecular Biology and Genetics, Faculty of Science, Atatürk University, Erzurum, Turkey
| | - Saltuk Buğrahan Ceyhun
- Aquatic Biotechnology Laboratory, Fisheries Faculty, Atatürk University, Erzurum, Turkey; Aquaculture Department, Fisheries Faculty, Atatürk University, Erzurum, Turkey.
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Kimura Y, Tsukui D, Kono H. Uric Acid in Inflammation and the Pathogenesis of Atherosclerosis. Int J Mol Sci 2021; 22:ijms222212394. [PMID: 34830282 PMCID: PMC8624633 DOI: 10.3390/ijms222212394] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/06/2021] [Accepted: 11/15/2021] [Indexed: 02/06/2023] Open
Abstract
Hyperuricemia is a common metabolic syndrome. Elevated uric acid levels are risk factors for gout, hypertension, and chronic kidney diseases. Furthermore, various epidemiological studies have also demonstrated an association between cardiovascular risks and hyperuricemia. In hyperuricemia, reactive oxygen species (ROS) are produced simultaneously with the formation of uric acid by xanthine oxidases. Intracellular uric acid has also been reported to promote the production of ROS. The ROS and the intracellular uric acid itself regulate several intracellular signaling pathways, and alterations in these pathways may result in the development of atherosclerotic lesions. In this review, we describe the effect of uric acid on various molecular signals and the potential mechanisms of atherosclerosis development in hyperuricemia. Furthermore, we discuss the efficacy of treatments for hyperuricemia to protect against the development of atherosclerosis.
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Affiliation(s)
- Yoshitaka Kimura
- Department of Internal Medicine, Faculty of Medicine, Teikyo University of Medicine, Tokyo 173-8605, Japan; (Y.K.); (D.T.)
- Department of Microbiology and Immunology, Faculty of Medicine, Teikyo University of Medicine, Tokyo 173-8605, Japan
| | - Daisuke Tsukui
- Department of Internal Medicine, Faculty of Medicine, Teikyo University of Medicine, Tokyo 173-8605, Japan; (Y.K.); (D.T.)
| | - Hajime Kono
- Department of Internal Medicine, Faculty of Medicine, Teikyo University of Medicine, Tokyo 173-8605, Japan; (Y.K.); (D.T.)
- Correspondence: ; Tel.: +81-3-3964-1211
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Tian R, Geng Y, Guo H, Yang C, Seim I, Yang G. Comparative analysis of the superoxide dismutase gene family in Cetartiodactyla. J Evol Biol 2021; 34:1046-1060. [PMID: 33896059 DOI: 10.1111/jeb.13792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/29/2021] [Accepted: 04/16/2021] [Indexed: 12/18/2022]
Abstract
Cetacea, whales, dolphins and porpoises form an order of mammals adapted to aquatic life. Their transition to an aquatic habitat resulted in exceptional protection against cellular insults, including oxidative and osmotic stress. Here, we considered the structure and molecular evolution of the superoxide dismutase (SOD) gene family, which encodes essential enzymes in the mammalian antioxidant system, in the superorder Cetartiodactyla. To this end, we juxtaposed cetaceans and their closest extant relatives (order Artiodactyla). We identified 94 genes in 23 species, of which 70 are bona fide intact genes. Although the SOD gene family is conserved in Cetartiodactyla, lineage-specific gene duplications and deletions were observed. Phylogenetic analyses show that the SOD2 subfamily diverged from a clade containing SOD1 and SOD3, suggesting that cytoplasmic, extracellular and mitochondrial SODs have started down independent evolutionary paths. Specific-amino acid changes (e.g. K130N in SOD2) that may enhance ROS elimination were identified in cetaceans. In silico analysis suggests that the core transcription factor repertoire of cetartiodactyl SOD genes may include Sp1, NF-κB, Nrf2 and AHR. Putative transcription factors binding sites responding to hypoxia were (e.g. Suppressor of Hairless; Su(H)) found in the cetacean SOD1 gene. We found significant evidence for positive selection in cetaceans using codon models. Cetaceans with different diving abilities also show divergent evolution of SOD1 and SOD2. Our genome-wide analysis of SOD genes helps clarify their relationship and evolutionary trajectory and identify putative functional changes in cetaceans.
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Affiliation(s)
- Ran Tian
- Integrative Biology Laboratory, College of Life Sciences, Nanjing Normal University, Nanjing, China.,Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yuepan Geng
- Integrative Biology Laboratory, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Han Guo
- Integrative Biology Laboratory, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Chen Yang
- Integrative Biology Laboratory, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Inge Seim
- Integrative Biology Laboratory, College of Life Sciences, Nanjing Normal University, Nanjing, China.,School of Biology and Environmental Science, Queensland University of Technology, Brisbane, QLD, Australia
| | - Guang Yang
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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Dudzinska W, Lubkowska A. Changes in the Concentration of Purine and Pyridine as a Response to Single Whole-Body Cryostimulation. Front Physiol 2021; 12:634816. [PMID: 33584352 PMCID: PMC7873528 DOI: 10.3389/fphys.2021.634816] [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: 11/28/2020] [Accepted: 01/08/2021] [Indexed: 11/29/2022] Open
Abstract
To our knowledge, this is the first study in which we provide evidence that a single whole-body cryostimulation treatment leads to changes associated with erythrocyte energy metabolism. These changes are beneficial from the point of view of cellular bioenergetics, because they are associated with an increase in ATP concentration and erythrocyte energy potential expressed by an increase in the ATP/ADP and ATP/AMP ratios and the value of adenylate energy charge (AEC). In addition, as affected by cryogenic temperatures, there is a decrease in the concentration of purine catabolism products, i.e., inosine and hypoxanthine in the blood.
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Affiliation(s)
- Wioleta Dudzinska
- Institute of Biology, University of Szczecin, Szczecin, Poland.,Department of Functional Diagnostics and Physical Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
| | - Anna Lubkowska
- Department of Functional Diagnostics and Physical Medicine, Pomeranian Medical University in Szczecin, Szczecin, Poland
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Allen KN, Vázquez-Medina JP. Natural Tolerance to Ischemia and Hypoxemia in Diving Mammals: A Review. Front Physiol 2019; 10:1199. [PMID: 31620019 PMCID: PMC6763568 DOI: 10.3389/fphys.2019.01199] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2019] [Accepted: 09/03/2019] [Indexed: 12/15/2022] Open
Abstract
Reperfusion injury follows ischemia/reperfusion events occurring during myocardial infarction, stroke, embolism, and other peripheral vascular diseases. Decreased blood flow and reduced oxygen tension during ischemic episodes activate cellular pathways that upregulate pro-inflammatory signaling and promote oxidant generation. Reperfusion after ischemia recruits inflammatory cells to the vascular wall, further exacerbating oxidant production and ultimately resulting in cell death, tissue injury, and organ dysfunction. Diving mammals tolerate repetitive episodes of peripheral ischemia/reperfusion as part of the cardiovascular adjustments supporting long duration dives. These adjustments allow marine mammals to optimize the use of their body oxygen stores while diving but can result in selectively reduced perfusion to peripheral tissues. Remarkably, diving mammals show no apparent detrimental effects associated with these ischemia/reperfusion events. Here, we review the current knowledge regarding the strategies marine mammals use to suppress inflammation and cope with oxidant generation potentially derived from diving-induced ischemia/reperfusion.
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The impact of xanthine oxidase (XO) on hemolytic diseases. Redox Biol 2018; 21:101072. [PMID: 30580157 PMCID: PMC6305892 DOI: 10.1016/j.redox.2018.101072] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 01/13/2023] Open
Abstract
Hemolytic diseases are associated with elevated levels of circulating free heme that can mediate endothelial dysfunction directly via redox reactions with biomolecules or indirectly by upregulating enzymatic sources of reactive species. A key enzymatic source of these reactive species is the purine catabolizing enzyme, xanthine oxidase (XO) as the oxidation of hypoxanthine to xanthine and subsequent oxidation of xanthine to uric acid generates superoxide (O2•-) and hydrogen peroxide (H2O2). While XO has been studied for over 120 years, much remains unknown regarding specific mechanistic roles for this enzyme in pathologic processes. This gap in knowledge stems from several interrelated issues including: 1) lethality of global XO deletion and the absence of tissue-specific XO knockout models have coalesced to relegate proof-of-principle experimentation to pharmacology; 2) XO is mobile and thus when upregulated locally can be secreted into the circulation and impact distal vascular beds by high-affinity association to the glycocalyx on the endothelium; and 3) endothelial-bound XO is significantly resistant (> 50%) to inhibition by allopurinol, the principle compound used for XO inhibition in the clinic as well as the laboratory. While it is known that circulating XO is elevated in hemolytic diseases including sickle cell, malaria and sepsis, little is understood regarding its role in these pathologies. As such, the aim of this review is to define our current understanding regarding the effect of hemolysis (free heme) on circulating XO levels as well as the subsequent impact of XO-derived oxidants in hemolytic disease processes.
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Nemkov T, Sun K, Reisz JA, Song A, Yoshida T, Dunham A, Wither MJ, Francis RO, Roach RC, Dzieciatkowska M, Rogers SC, Doctor A, Kriebardis A, Antonelou M, Papassideri I, Young CT, Thomas TA, Hansen KC, Spitalnik SL, Xia Y, Zimring JC, Hod EA, D'Alessandro A. Hypoxia modulates the purine salvage pathway and decreases red blood cell and supernatant levels of hypoxanthine during refrigerated storage. Haematologica 2017; 103:361-372. [PMID: 29079593 PMCID: PMC5792281 DOI: 10.3324/haematol.2017.178608] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 10/24/2017] [Indexed: 12/18/2022] Open
Abstract
Hypoxanthine catabolism in vivo is potentially dangerous as it fuels production of urate and, most importantly, hydrogen peroxide. However, it is unclear whether accumulation of intracellular and supernatant hypoxanthine in stored red blood cell units is clinically relevant for transfused recipients. Leukoreduced red blood cells from glucose-6-phosphate dehydrogenase-normal or -deficient human volunteers were stored in AS-3 under normoxic, hyperoxic, or hypoxic conditions (with oxygen saturation ranging from <3% to >95%). Red blood cells from healthy human volunteers were also collected at sea level or after 1–7 days at high altitude (>5000 m). Finally, C57BL/6J mouse red blood cells were incubated in vitro with 13C1-aspartate or 13C5-adenosine under normoxic or hypoxic conditions, with or without deoxycoformycin, a purine deaminase inhibitor. Metabolomics analyses were performed on human and mouse red blood cells stored for up to 42 or 14 days, respectively, and correlated with 24 h post-transfusion red blood cell recovery. Hypoxanthine increased in stored red blood cell units as a function of oxygen levels. Stored red blood cells from human glucose-6-phosphate dehydrogenase-deficient donors had higher levels of deaminated purines. Hypoxia in vitro and in vivo decreased purine oxidation and enhanced purine salvage reactions in human and mouse red blood cells, which was partly explained by decreased adenosine monophosphate deaminase activity. In addition, hypoxanthine levels negatively correlated with post-transfusion red blood cell recovery in mice and – preliminarily albeit significantly - in humans. In conclusion, hypoxanthine is an in vitro metabolic marker of the red blood cell storage lesion that negatively correlates with post-transfusion recovery in vivo. Storage-dependent hypoxanthine accumulation is ameliorated by hypoxia-induced decreases in purine deamination reaction rates.
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Affiliation(s)
- Travis Nemkov
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA
| | - Kaiqi Sun
- Department of Biochemistry, University of Texas Houston - School of Medicine, Houston, TX, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA
| | - Anren Song
- Department of Biochemistry, University of Texas Houston - School of Medicine, Houston, TX, USA
| | | | | | - Matthew J Wither
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA
| | - Richard O Francis
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY, USA
| | - Robert C Roach
- Altitude Research Center, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA
| | - Monika Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA
| | - Stephen C Rogers
- Division of Critical Care Medicine, Department of Pediatrics, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Allan Doctor
- Division of Critical Care Medicine, Department of Pediatrics, School of Medicine, Washington University in St Louis, St Louis, MO, USA
| | - Anastasios Kriebardis
- Department of Medical Laboratories, Technological and Educational Institute of Athens, Greece
| | - Marianna Antonelou
- Department of Biology, National and Kapodistrian University of Athens, Greece
| | | | | | - Tiffany A Thomas
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY, USA
| | - Kirk C Hansen
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA
| | - Steven L Spitalnik
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY, USA
| | - Yang Xia
- Department of Biochemistry, University of Texas Houston - School of Medicine, Houston, TX, USA
| | | | - Eldad A Hod
- Department of Pathology & Cell Biology, Columbia University Medical Center, New York, NY, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA .,Boettcher Investigator
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