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The role of interleukin-6 genetic variant on inflammation and endothelial function in patients with unstable angina. Hellenic J Cardiol 2021; 63:79-81. [PMID: 33839283 DOI: 10.1016/j.hjc.2021.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 02/28/2021] [Accepted: 03/05/2021] [Indexed: 11/22/2022] Open
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Araújo DM, Rodrigues CEM, Gonçalves NGG, Rabelo-Júnior CN, Lobo MDP, Moreira RDA, Monteiro-Moreira ACDO. Proteins Involved in the Induction of Procoagulant Activity and Autoimmune Response in Patients With Primary Antiphospholipid Syndrome. Clin Appl Thromb Hemost 2020; 26:1076029620905338. [PMID: 32299226 PMCID: PMC7289064 DOI: 10.1177/1076029620905338] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 01/02/2020] [Accepted: 01/15/2020] [Indexed: 12/19/2022] Open
Abstract
The aim of this study was to determine the plasma protein profile of patients with primary antiphospholipid syndrome (PAPS) compared to healthy controls and identify proteins that might be used in the evaluation, diagnosis, and prognosis of this condition. The sample consisted of 14 patients with PAPS and 17 sex- and age-matched controls. Plasma samples were submitted to proteomic analysis (albumin and immunoglobulin G depletion, concentration, digestion, and label-free data-independent mass spectrometry). The software ExpressionE was used to quantify intergroup differences in protein expression. The analysis yielded 65 plasma proteins of which 11 were differentially expressed (9 upregulated and 2 downregulated) in relation to controls. Four of these are known to play a role in pathophysiological mechanisms of thrombosis: fibrinogen α chain, fibrinogen α chain, apolipoprotein C-III, and α-1-glycoprotein-1. Our analysis revealed autoimmune response and the presence of proteins believed to be functionally involved in the induction of procoagulant activity in patients with PAPS. Further studies are necessary to confirm our findings and may eventually lead to the development of significantly more accurate diagnostic tools.
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Papageorgiou N, Tousoulis D. Single-nucleotide polymorphisms and their role in coronary artery disease: Where do we stand now? Hellenic J Cardiol 2018; 59:14-15. [PMID: 29627598 DOI: 10.1016/j.hjc.2018.02.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Accepted: 02/19/2018] [Indexed: 10/17/2022] Open
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Genetics of Atherosclerosis. Coron Artery Dis 2018. [DOI: 10.1016/b978-0-12-811908-2.00007-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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The β fibrinogen gene G-455A polymorphism in Asian subjects with coronary heart disease: A meta analysis. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2017. [DOI: 10.1016/j.ejmhg.2016.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
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Papageorgiou N, Briasoulis A, Hatzis G, Androulakis E, Kozanitou M, Miliou A, Charakida M, Zacharia E, Papaioannou S, Paroutoglou I, Siasos G, Pallantza Z, Tousoulis D. Ateroesclerosis coronaria en pacientes hipertensos: el papel de la variabilidad genética del fibrinógeno. Rev Esp Cardiol 2017. [DOI: 10.1016/j.recesp.2016.05.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Papageorgiou N, Briasoulis A, Hatzis G, Androulakis E, Kozanitou M, Miliou A, Charakida M, Zacharia E, Papaioannou S, Paroutoglou I, Siasos G, Pallantza Z, Tousoulis D. Coronary Artery Atherosclerosis in Hypertensive Patients: The Role of Fibrinogen Genetic Variability. ACTA ACUST UNITED AC 2016; 70:34-41. [PMID: 27553289 DOI: 10.1016/j.rec.2016.05.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 05/17/2016] [Indexed: 12/12/2022]
Abstract
INTRODUCTION AND OBJECTIVES We examined whether the rs180070 and rs2070011 polymorphisms of the fibrinogen gene could affect the risk of coronary artery disease in hypertensive patients by modifying the inflammatory process and coagulation. METHODS A total of 744 participants underwent coronary angiography due to symptoms of stable angina, while hypertension was present in 332 patients. RESULTS The presence of the A allele (rs180070) was associated with significantly high levels of fibrinogen in hypertensive patients (P=.05). On multivariate analysis, A homozygosity (rs180070) (β = 0.257 ± 18.6; P<.001), but not hypertension status (β = 0.05 ± 11.9; P=.29) was an independent predictor of fibrinogen levels. In hypertensive patients, higher fibrinogen levels>443mg/dL (odds ratio = 3.50; 95% confidence interval, 1.14-10.90; P=.029), but not A homozygosity (odds ratio = 3.00; 95% confidence interval, 0.78-11.90; P = .110) were independent predictors of the presence of coronary artery disease. Moreover, interleukin-6 levels were higher in A homozygotes for the rs180070 polymorphism compared with all other genotypes (P=.046). Indeed, this genotype was the only adjusted independent predictor of interleukin-6 levels (β = 0.151 ± 0.642; P=.032). It was also associated with higher D-dimer levels in hypertension compared with G allele carriers (P=.048). CONCLUSIONS The presence of A homozygosity (rs180070) is associated with increased levels of inflammatory mediators and a higher incidence of angiographic coronary artery disease. Importantly, fibrinogen is an independent predictor of the angiographic presence of coronary artery disease in hypertensive patients.
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Affiliation(s)
- Nikolaos Papageorgiou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece; Barts Heart Centre, St. Bartholomew's Hospital, London, United Kingdom
| | - Alexandros Briasoulis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece; Cardiovascular Institute, Wayne State University, Detroit, United States
| | - Georgios Hatzis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Emmanuel Androulakis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece; Department of Cardiology, John Radcliffe, Oxford University Hospital, Oxford, United Kingdom
| | - Maria Kozanitou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Antigoni Miliou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Marietta Charakida
- Department of Cardiovascular Imaging, King's College, London, United Kingdom
| | - Effimia Zacharia
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Spyridon Papaioannou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Ioannis Paroutoglou
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Gerasimos Siasos
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Zoi Pallantza
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece
| | - Dimitris Tousoulis
- 1st Cardiology Department, Athens University Medical School, Hippokration Hospital, Athens, Greece.
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Nguyen TT, Bea SO, Kim DM, Yoon WJ, Park JW, An SSA, Ju H. A regenerative label-free fiber optic sensor using surface plasmon resonance for clinical diagnosis of fibrinogen. Int J Nanomedicine 2015; 10 Spec Iss:155-63. [PMID: 26347331 PMCID: PMC4556302 DOI: 10.2147/ijn.s88963] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Purpose We present the regenerative label-free fiber optical biosensor that exploits surface plasmon resonance for quantitative detection of fibrinogen (Fbg) extracted from human blood plasma. Materials and methods The sensor head was made up of a multimode optical fiber with its polymer cladding replaced by metal composite of nanometer thickness made of silver, aluminum, and nickel. The Ni layer coated allowed a direct immobilization of histidine-tagged peptide (HP) on its metal surface without an additional cross-linker in between. On the coated HP layer, immunoglobulin G was then immobilized for specific capturing of Fbg. Results We demonstrated a real-time quantitative detection of Fbg concentrations with limit of detection of ~10 ng/mL. The fact that the HP layer could be removed by imidazole with acid also permitted us to demonstrate the regeneration of the outermost metal surface of the sensor head for the sensor reusability. Conclusion The sensor detection limit was estimated to be ~10 pM, which was believed to be sensitive enough for detecting Fbg during the clinical diagnosis of cardiovascular diseases, myocardial infarction, strokes, and Alzheimer’s diseases.
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Affiliation(s)
- Tan Tai Nguyen
- Department of Bionano Technology, College of Bionano Technology, Gachon University, Seongnam, South Korea
| | - Sun Oh Bea
- Department of Bionano Technology, College of Bionano Technology, Gachon University, Seongnam, South Korea
| | - Dong Min Kim
- Department of Materials Science and Engineering, Hongik University, Sejong City, South Korea
| | - Won Jung Yoon
- Department of Chemical and Bio Engineering, Gachon University, Seongnam, South Korea
| | - Jin-Won Park
- Department of Chemical and Biomolecular Engineering, College of Energy and Biotechnology, Seoul National University of Science and Technology, Seoul, South Korea
| | - Seong Soo A An
- Department of Bionano Technology, College of Bionano Technology, Gachon University, Seongnam, South Korea
| | - Heongkyu Ju
- Department of Bionano Technology, College of Bionano Technology, Gachon University, Seongnam, South Korea ; Department of Nanophysics, College of Bionano Technology, Gachon University, Seongnam, South Korea ; Neuroscience Institute, Gil Hospital, Incheon, South Korea
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Pretorius E, Kell DB. Diagnostic morphology: biophysical indicators for iron-driven inflammatory diseases. Integr Biol (Camb) 2014; 6:486-510. [PMID: 24714688 DOI: 10.1039/c4ib00025k] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Most non-communicable diseases involve inflammatory changes in one or more vascular systems, and there is considerable evidence that unliganded iron plays major roles in this. Most studies concentrate on biochemical changes, but there are important biophysical correlates. Here we summarize recent microscopy-based observations to the effect that iron can have major effects on erythrocyte morphology, on erythrocyte deformability and on both fibrinogen polymerization and the consequent structure of the fibrin clots formed, each of which contributes significantly and negatively to such diseases. We highlight in particular type 2 diabetes mellitus, ischemic thrombotic stroke, systemic lupus erythematosus, hereditary hemochromatosis and Alzheimer's disease, while recognizing that many other diseases have co-morbidities (and similar causes). Inflammatory biomarkers such as ferritin and fibrinogen are themselves inflammatory, creating a positive feedback that exacerbates disease progression. The biophysical correlates we describe may provide novel, inexpensive and useful biomarkers of the therapeutic benefits of successful treatments.
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Affiliation(s)
- Etheresia Pretorius
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Private Bag x323, Arcadia 0007, South Africa.
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Hatzis G, Tousoulis D, Papageorgiou N, Bouras G, Oikonomou E, Miliou A, Siasos G, Toutouzas K, Papaioannou S, Tsiamis E, Antoniades C, Stefanadis C. Combined effects of smoking and interleukin-6 and C-reactive protein genetic variants on endothelial function, inflammation, thrombosis and incidence of coronary artery disease. Int J Cardiol 2014; 176:254-7. [DOI: 10.1016/j.ijcard.2014.06.058] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/30/2014] [Accepted: 06/28/2014] [Indexed: 11/30/2022]
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