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Zhang J, He Y, Yin Z, Li R, Zhang X, Wang Y, Wang H. Circulating neuropeptide Y as a biomarker in postoperative atrial fibrillation cases administered off-pump coronary bypass Graft surgery. Heliyon 2024; 10:e31251. [PMID: 38803941 PMCID: PMC11129009 DOI: 10.1016/j.heliyon.2024.e31251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 05/13/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
Background and aims Postoperative atrial fibrillation (POAF) is considered the most prevalent irregular heart rhythm after heart surgery. The cardiac autonomic nervous system significantly affects POAF, and neuropeptide Y (NPY), an abundant neuropeptide in the cardiovascular system, is involved in this autonomic regulation. The current work aimed to examine the potential association of NPY with POAF in individuals administered isolated off-pump coronary artery bypass grafting. Methods From January 1 to May 31, 2020, we examined consecutive cases administered successful isolated off-pump coronary artery bypass grafting with no previously diagnosed atrial fibrillation (AF). Clinical characteristics and plasma samples were collected before surgery. NPY was quantified by enzyme-linked immunosorbent assay (ELISA) in peripheral blood, and POAF cases were identified through a 7-day Holter monitoring. Results Among 120 cases with no previously diagnosed AF, 33 (27.5 %) developed POAF during hospitalization. Median NPY levels were markedly elevated in the POAF group in comparison with the sinus rhythm group (31.72 vs. 27.95, P = 0.014). Multivariable logistic regression analysis revealed age (OR = 1.135, 95%CI 1.054-1.223; P = 0.001), left atrial size (OR = 1.136, 95%CI 1.004-1.285; P = 0.043), and NPY levels in peripheral blood (OR = 1.055, 95%CI 1.002-1.111; p = 0.041) independently predicted POAF. Additionally, NPY levels were positively correlated with high-frequency (HF) (r = 0.2774, P = 0.0022) and low-frequency (LF) (r = 0.2095, P = 0.0217) components of heart rate variability. Conclusion In summary, this study demonstrates an association between elevated NPY levels in peripheral blood before surgery and POAF occurrence.
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Affiliation(s)
- Jian Zhang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
| | - Yuanchen He
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
- Postgraduate Training Base of Northern Theater Command General Hospital,Dalian Medical University, No. 9, Lvshun western south Road, LvShunKou District, Dalian, Liaoning 116044, China
| | - Zongtao Yin
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
| | - Rui Li
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
- Postgraduate Training Base of Northern Theater Command General Hospital,China Medical University, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
| | - Xiaohui Zhang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
- Postgraduate Training Base of Northern Theater Command General Hospital,China Medical University, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
| | - Yang Wang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
| | - Huishan Wang
- Department of Cardiovascular Surgery, General Hospital of Northern Theater Command, No.83, Wenhua Road, Shenhe District, Shenyang, Liaoning,110016 China
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Gut Microbiota in Patients with Postoperative Atrial Fibrillation Undergoing Off-Pump Coronary Bypass Graft Surgery. J Clin Med 2023; 12:jcm12041493. [PMID: 36836027 PMCID: PMC9960524 DOI: 10.3390/jcm12041493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/01/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
BACKGROUND Post-operative atrial fibrillation (POAF) is one of the most common complications of cardiac surgery. However, the underlying mechanism is not well understood. Alterations in the gut microbiota are associated with the development of atrial fibrillation (AF). The aim of this study was to explore the relationship between gut microbiota and POAF. METHODS Fecal samples were collected before surgery from 45 patients who underwent coronary artery bypass grafting with POAF and 90 matched patients without POAF (1:2). 16S rRNA sequencing was used to detect the microbiome profiles of 45 POAF patients and 89 matched patients (one sample in the no-POAF group was deleted owing to low quality after sequencing). Plasma 25-hydroxy vitamin D level was measured by ELISA. RESULTS Compared to the patients without POAF, gut microbiota composition was remarkably changed in the patients with POAF, with an increase in Lachnospira, Acinetobacter, Veillonella and Aeromonas, and a decrease in Escherichia-Shigella, Klebsiella, Streptococcus, Brevundimonas and Citrobacter. Furthermore, plasma 25-hydroxy vitamin D levels were decreased in POAF patients and negatively correlated with an abundance of Lachnospira. CONCLUSIONS The gut microbiota composition between patients with and without POAF is significantly different, implying that gut microbiota may play a role in the pathogenesis of POAF. Further studies are needed to fully clarify the role of gut microbiota in the initiation of AF.
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Li YJ, Jin X, Li D, Lu J, Zhang XN, Yang SJ, Zhao YX, Wu M. New insights into vascular aging: Emerging role of mitochondria function. Biomed Pharmacother 2022; 156:113954. [DOI: 10.1016/j.biopha.2022.113954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/29/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022] Open
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Minimized Extracorporeal Circulation Is Associated with Reduced Plasma Levels of Free-Circulating Mitochondrial DNA Compared to Conventional Cardiopulmonary Bypass: A Secondary Analysis of an Exploratory, Prospective, Interventional Study. J Clin Med 2022; 11:jcm11112994. [PMID: 35683383 PMCID: PMC9181034 DOI: 10.3390/jcm11112994] [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: 04/03/2022] [Revised: 05/10/2022] [Accepted: 05/23/2022] [Indexed: 01/25/2023] Open
Abstract
The use of minimized extracorporeal circulation (MiECC) during cardiac surgery is associated with a reduced inflammatory reaction compared to conventional cardiopulmonary bypass (cCPB). Since it is unknown if MiECC also reduces the amount of free-circulating mitochondrial DNA (mtDNA), this study aims to compare MiECC-induced mtDNA release to that of cCPB as well as to identify potential relations between the plasma levels of mtDNA and an adverse outcome. Overall, 45 patients undergoing cardiac surgery with either cCPB or MiECC were included in the study. MtDNA encoding for NADH dehydrogenase 1 was quantified with quantitative polymerase chain reaction. The plasma amount of mtDNA was significantly lower in patients undergoing cardiac surgery with MiECC compared to cCPB (MiECC: 161.8 (65.5−501.9); cCPB 190.8 (82−705.7); p < 0.001). Plasma levels of mtDNA showed comparable kinetics independently of the study group and peaked during CPB (MiECC preoperative: 68.2 (26.5−104.9); MiECC 60 min after start of CPB: 536.5 (215.7−919.6); cCPB preoperative: 152.5 (80.9−207.6); cCPB 60 min after start of CPB: 1818.0 (844.2−3932.2); all p < 0.001). Patients offering an mtDNA blood concentration of >650 copies/µL after the commencement of CPB had a 5-fold higher risk for postoperative atrial fibrillation independently of the type of cardiopulmonary bypass. An amount of mtDNA being higher than 650 copies/µL showed moderate predictive power (AUROC 0.71 (0.53−071)) for the identification of postoperative atrial fibrillation. In conclusion, plasma levels of mtDNA were lower in patients undergoing cardiac surgery with MiECC compared to cCPB. The amount of mtDNA at the beginning of the CPB was associated with postoperative atrial fibrillation independent of the type of cardiopulmonary bypass.
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Waterford SD, Ad M. 7 Pillars of Postoperative Atrial Fibrillation Prevention. INNOVATIONS-TECHNOLOGY AND TECHNIQUES IN CARDIOTHORACIC AND VASCULAR SURGERY 2021; 16:498-503. [PMID: 34823388 DOI: 10.1177/15569845211043485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Stephen D Waterford
- 12302 Division of Cardiac Surgery, Department of Surgery, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Michal Ad
- 23146 Department of Surgery, Inova Fairfax Hospital, Falls Church, VA, USA
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Effect of feeding linseed diet on testis development, antioxidant capacity, and epididymal cauda sperm concentration in Chinese Hu lamb. Theriogenology 2020; 159:69-76. [PMID: 33113446 DOI: 10.1016/j.theriogenology.2020.10.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 09/17/2020] [Accepted: 10/08/2020] [Indexed: 02/06/2023]
Abstract
Polyunsaturated fatty acids (PUFAs) are essential for mammalian testis development and sperm function. However, PUFAs that are contained in linseed oil are easily oxidized in the diet and biohydrogenated in the rumen. In this study, we investigated the effect of linseed as a source of PUFAs on the antioxidant capacity and testis development in Hu lamb. Seventy-five 3-month-old lambs were randomly assigned to three groups. Within each treatment group, 25 lambs were allocated to five pens (five lambs per pen). The lambs in the control group were fed a control diet without linseed for 42 days from D22 to D63. Group I (BS28) was fed a control diet from D22 to D35 and 8% linseed diet from D36 to D63. Group II (BS42) was fed an 8% linseed diet for 42 days from D22 to D63. After 63-day feeding trial, all lambs except the heaviest and lightest in each pen were humanely slaughtered and investigated. Results revealed that feeding linseed did not affect the body weight, scrotal circumference, and testis weight, whereas feeding linseed for 42 days increased the epididymis weight (37.85 ± 1.61 g vs. 32.09 ± 1.06 g, P < 0.05) compared with the control group. Feeding lambs with linseed for 42 days also significantly upregulated the expression of antioxidative (glutathione peroxidase 4 and copper-zinc superoxide dismutase), steroidogenesis (3β-hydroxysteroid dehydrogenase and steroid acute regulatory protein), and PUFA metabolism-related genes (fatty acid desaturase 2 and elongation of very long-chain fatty acid protein 2) and proliferating cell nuclear antigen mRNA (P < 0.05). It also increased the relative expression of mitochondrial DNA (P < 0.05), total antioxidant capacity (0.230 ± 0.019 mmol/mgprot vs. 0.175 ± 0.011 mmol/mgprot, P < 0.05), and superoxide dismutase (1661.467 ± 147.117 U/mgprot vs. 1158.891 ± 98.850 U/mgprot, P < 0.05) in testicular tissue but decreased the cholesterol concentration (0.331 ± 0.073 mmol/mgprot vs. 0.671 ± 0.092 mmol/mgprot, P < 0.05) compared with the control group. Therefore, feeding lambs with linseed for 42 days stimulated seminiferous tubule development and increased the number of Sertoli cells (20.71 ± 0.89 vs. 17.6 ± 0.73, P < 0.05), epididymal cauda lumina diameter (638.26 ± 22.32 μm vs. 444.41 ± 34.80 μm, P < 0.05), and the number of sperm in the epididymal cauda (68.91 ± 7.06 × 108/g vs. 36.61 ± 7.50 × 108/g). All these results suggested that feeding linseed in the early reproductive development stage of lambs upregulated the expression of antioxidative, steroidogenesis, and PUFA metabolism-related genes; increased the antioxidant capacity in lamb's testis; and contributed to testis development and spermatogenesis.
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Manghelli JL, Kelly MO, Carter DI, Gauthier JM, Scozzi D, Lancaster TS, MacGregor RM, Khiabani AJ, Schuessler RB, Gelman AE, Damiano RJ, Melby SJ. Pericardial Mitochondrial DNA Levels Are Associated With Atrial Fibrillation After Cardiac Surgery. Ann Thorac Surg 2020; 111:1593-1600. [PMID: 32946846 DOI: 10.1016/j.athoracsur.2020.07.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 06/30/2020] [Accepted: 07/01/2020] [Indexed: 01/07/2023]
Abstract
BACKGROUND Postoperative atrial fibrillation (POAF) is the most common complication after cardiac surgery, and is associated with increased morbidity and mortality. Inflammation has been implicated as an etiology of POAF. Mitochondrial DNA (mtDNA) has been shown to initiate inflammation. This study analyzed inflammatory mechanisms of POAF by evaluating mtDNA, neutrophils, and cytokines/chemokines in the pericardial fluid and blood after cardiac surgery. METHODS Blood and pericardial fluid from patients who underwent coronary artery bypass or heart valve surgery, or both, were collected intraoperatively and at 4, 12, 24, and 48 hours postoperatively. Real-time polymerase chain reaction was used to quantify mtDNA in the pericardial fluid and blood. A Luminex (Luminex Corp, Austin, TX) assay was used to study cytokine and chemokine levels. Flow cytometry was used to analyze neutrophil infiltration and activation in the pericardial fluid. RESULTS Samples from 100 patients were available for analysis. Postoperatively, mtDNA and multiple cytokine levels were higher in the pericardial fluid versus blood. Patients who had POAF had significantly higher levels of mtDNA in the pericardial fluid compared with patients who did not (P < .001, area under the curve 0.74). There was no difference in the mtDNA concentration in the blood between the POAF group and non-POAF group (P = .897). Neutrophil concentration increased in the pericardial fluid over time from a baseline of 0.8% to 56% at 48 hours (P < .01). CONCLUSIONS The pericardial space has a high concentration of inflammatory mediators postoperatively. Mitochondrial DNA in the pericardial fluid was strongly associated with the development of POAF. This finding provides insight into a possible mechanism of inflammation that may contribute to POAF, and may offer novel therapeutic targets.
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Affiliation(s)
- Joshua L Manghelli
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Meghan O Kelly
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Daniel I Carter
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Jason M Gauthier
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Davide Scozzi
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Timothy S Lancaster
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Robert M MacGregor
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Ali J Khiabani
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Richard B Schuessler
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Andrew E Gelman
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Ralph J Damiano
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri
| | - Spencer J Melby
- Division of Cardiothoracic Surgery, Barnes-Jewish Hospital, Washington University School of Medicine, St Louis, Missouri.
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Khan MS, Yamashita K, Sharma V, Ranjan R, Dosdall DJ. RNAs and Gene Expression Predicting Postoperative Atrial Fibrillation in Cardiac Surgery Patients Undergoing Coronary Artery Bypass Grafting. J Clin Med 2020; 9:jcm9041139. [PMID: 32316120 PMCID: PMC7231013 DOI: 10.3390/jcm9041139] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 02/07/2023] Open
Abstract
Postoperative atrial fibrillation (POAF) is linked with increased morbidity, mortality rate and financial liability. About 20–50% of patients experience POAF after coronary artery bypass graft (CABG) surgery. Numerous review articles and meta-analyses have investigated links between patient clinical risk factors, demographic conditions, and pre-, peri- and post-operative biomarkers to forecast POAF incidence in CABG patients. This narrative review, for the first time, summarize the role of micro-RNAs, circular-RNAs and other gene expressions that have shown experimental evidence to accurately predict the POAF incidence in cardiac surgery patients after CABG. We envisage that identifying specific genomic markers for predicting POAF might be a significant step for the prevention and effective management of this type of post-operative complication and may provide critical perspective into arrhythmogenic substrate responsible for POAF.
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Affiliation(s)
- Muhammad Shuja Khan
- Nora Eccles Harrison Cardiovascular Research and Training Institute, The University of Utah, Salt Lake City, UT 84112, USA; (M.S.K.); (K.Y.); (R.R.)
| | - Kennosuke Yamashita
- Nora Eccles Harrison Cardiovascular Research and Training Institute, The University of Utah, Salt Lake City, UT 84112, USA; (M.S.K.); (K.Y.); (R.R.)
- Division of Cardiovascular Medicine, The University of Utah-Health, Salt Lake City, UT 84132, USA
| | - Vikas Sharma
- Division of Cardiothoracic Surgery, The University of Utah-Health, Salt Lake City, UT 84132, USA;
| | - Ravi Ranjan
- Nora Eccles Harrison Cardiovascular Research and Training Institute, The University of Utah, Salt Lake City, UT 84112, USA; (M.S.K.); (K.Y.); (R.R.)
- Division of Cardiovascular Medicine, The University of Utah-Health, Salt Lake City, UT 84132, USA
- Department of Biomedical Engineering, The University of Utah, Salt Lake City, UT 84112, USA
| | - Derek James Dosdall
- Nora Eccles Harrison Cardiovascular Research and Training Institute, The University of Utah, Salt Lake City, UT 84112, USA; (M.S.K.); (K.Y.); (R.R.)
- Division of Cardiovascular Medicine, The University of Utah-Health, Salt Lake City, UT 84132, USA
- Division of Cardiothoracic Surgery, The University of Utah-Health, Salt Lake City, UT 84132, USA;
- Department of Biomedical Engineering, The University of Utah, Salt Lake City, UT 84112, USA
- Correspondence: ; Tel.: +1-801-587-2036
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Ollitrault P, Allouche S, Chequel M, Milliez P, Alexandre J. Plasma aldosterone and atrial mitochondrial functions of patients undergoing cardiac surgery. Future Cardiol 2020; 16:275-280. [PMID: 32286862 DOI: 10.2217/fca-2019-0028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Mitochondrial dysfunction (MD) has been associated with poor outcomes after coronary artery bypass graft surgery. Methods: 58 consecutive patients from the ALDO-POAF Study (NCT02814903) were prospectively included. Plasma aldosterone was assessed at the time of the preoperative consultation and mitochondrial functional studies were performed using atrial appendage tissue collected during surgery. Results: Patients with the highest preoperative plasma aldosterone level had a lower mitochondrial respiratory chain functioning and a lower calcium retention capacity. Chronic kidney disease, patient's age and preoperative high-aldosterone were independent predictors of MD in multivariate analysis. Conclusion: These exploratory data support the use of preventive strategies targeting aldosterone and/or mineralocorticoid receptor activation, in order to prevent perioperative MD and associated poor outcomes.
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Affiliation(s)
- Pierre Ollitrault
- Department of Cardiology, Normandie Univ, Unicaen, F-14000 Caen, France.,EA 4650 (Signalisation, électrophysiologie et imagerie des lesions d'ischémie-reperfusion myocardique), Normandie Univ, Unicaen, F-14000 Caen, France
| | - Stéphane Allouche
- EA 4650 (Signalisation, électrophysiologie et imagerie des lesions d'ischémie-reperfusion myocardique), Normandie Univ, Unicaen, F-14000 Caen, France.,Department of Biochemistry, Caen University Hospital, Normandie Univ, Unicaen, F-14000 Caen, France
| | - Mathieu Chequel
- Department of Cardiology, Normandie Univ, Unicaen, F-14000 Caen, France.,EA 4650 (Signalisation, électrophysiologie et imagerie des lesions d'ischémie-reperfusion myocardique), Normandie Univ, Unicaen, F-14000 Caen, France
| | - Paul Milliez
- Department of Cardiology, Normandie Univ, Unicaen, F-14000 Caen, France.,EA 4650 (Signalisation, électrophysiologie et imagerie des lesions d'ischémie-reperfusion myocardique), Normandie Univ, Unicaen, F-14000 Caen, France
| | - Joachim Alexandre
- Department of Cardiology, Normandie Univ, Unicaen, F-14000 Caen, France.,EA 4650 (Signalisation, électrophysiologie et imagerie des lesions d'ischémie-reperfusion myocardique), Normandie Univ, Unicaen, F-14000 Caen, France.,Department of Pharmacology, Normandie Univ, Unicaen, F-14000 Caen, France
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Abstract
Mitochondria are key to the cellular response to energetic demand, but are also vital to reactive oxygen species signaling, calcium hemostasis, and regulation of cell death. Cardiac surgical patients with diabetes, heart failure, advanced age, or cardiomyopathies may have underlying mitochondrial dysfunction or be more sensitive to perioperative mitochondrial injury. Mitochondrial dysfunction, due to ischemia/reperfusion injury and an increased systemic inflammatory response due to exposure to cardiopulmonary bypass and surgical tissue trauma, impacts myocardial contractility and predisposes to arrhythmias. Strategies for perioperative mitochondrial protection and recovery include both well-established cardioprotective protocols and targeted therapies that remain under investigation.
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2017 Roadmap for Innovation-ACC Health Policy Statement on Healthcare Transformation in the Era of Digital Health, Big Data, and Precision Health: A Report of the American College of Cardiology Task Force on Health Policy Statements and Systems of Care. J Am Coll Cardiol 2019; 70:2696-2718. [PMID: 29169478 DOI: 10.1016/j.jacc.2017.10.018] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Soltész B, Urbancsek R, Pös O, Hajas O, Forgács IN, Szilágyi E, Nagy-Baló E, Szemes T, Csanádi Z, Nagy B. Quantification of peripheral whole blood, cell-free plasma and exosome encapsulated mitochondrial DNA copy numbers in patients with atrial fibrillation. J Biotechnol 2019; 299:66-71. [PMID: 31063814 DOI: 10.1016/j.jbiotec.2019.04.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/18/2019] [Accepted: 04/20/2019] [Indexed: 12/22/2022]
Abstract
Mitochondrial DNA (mtDNA) copy number changes have been associated with various diseases. Several studies showed that mtDNA content in peripheral blood was associated with oxidative stress and cardiovascular disease. Atrial fibrillation (AF) is one of the severe cardiovascular diseases. We aimed to determine the mtDNA copy numbers in peripheral blood, in cell-free plasma and in exosomes of AF patients and healthy controls. Peripheral blood was drawn from 60 AF patients and 72 healthy controls. DNA was isolated from EDTA blood and plasma. Exosomes were isolated from cell-free plasma and then exosome encapsulated DNA (exoDNA) was extracted. Quantitative-real-time PCR was performed with Human Mitochondrial DNA (mtDNA) Monitoring Primer Set. Statistical analysis of the data was performed. We found statistically significant difference in mtDNA copy numbers in DNA isolated from peripheral whole blood, cell-free plasma and exosome samples of controls' (44.4 ± 18.0, 27.2 ± 30.1, 11.5 ± 8.7), and patients' group (43.4 ± 13.6, 26.2 ± 26.4, 14.5 ± 12.3). However there was no significant difference in mtDNA copy number between the two study groups either in peripheral blood, in cell-free plasma and in exosomes, and even in different sexes and ages. We found the highest copy number of mtDNA in peripheral blood, followed by plasma and exosomes. We did not find differences between patients and controls, neither age nor gender had effect on the mtDNA copy number. According to our results the mtDNA copy numbers did not differ in AF patients.
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Affiliation(s)
- Beáta Soltész
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
| | - Réka Urbancsek
- Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ondrej Pös
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
| | - Orsolya Hajas
- Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Ildikó Noémi Forgács
- Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Edina Szilágyi
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Edina Nagy-Baló
- Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Tomas Szemes
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
| | - Zoltán Csanádi
- Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Bálint Nagy
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
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Busnelli A, Lattuada D, Rossetti R, Paffoni A, Persani L, Fedele L, Somigliana E. Mitochondrial DNA copy number in peripheral blood: a potential non-invasive biomarker for female subfertility. J Assist Reprod Genet 2018; 35:1987-1994. [PMID: 30120634 DOI: 10.1007/s10815-018-1291-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 08/09/2018] [Indexed: 12/12/2022] Open
Abstract
PURPOSE Low mitochondrial DNA (mtDNA) content in oocytes and in cumulus cells is an indicator of poor oocyte quality. Moreover, initial evidence showed a correlation between mtDNA content in cumulus cells and mtDNA copy number in peripheral blood cells. On these bases, we deemed of interest investigating the correlation between mtDNA copy number in peripheral blood and natural fecundity. METHODS This is a nested case-control study drawn from a prospective cohort of pregnant women referred for routine first trimester screening for aneuploidies (from 11 + 0 to 12 + 6 weeks of gestation) between January 2012 and March 2013 at the "Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico" of Milan, Italy. Cases were subfertile women who attempted to become pregnant for 12-24 months. Controls were the two subsequently age-matched women who became pregnant in less than 1 year. MtDNA was quantified using real-time PCR and normalized to nuclear DNA. RESULTS One hundred and four subfertile women and 208 controls were selected. The median (IQR) mtDNA copy number was 95 (73-124) and 145 (106-198), respectively (p < 0.001). The area under the ROC curve was 0.73 (95% CI 0.67-0.79) (p < 0.001). The Youden index was 105 mtDNA copy number. The crude OR for subfertility in women with mtDNA copy number below this threshold was 5.72 (95% CI 3.43-9.55). The accuracy of mtDNA copy number assessment in peripheral blood progressively decreased with increasing female age. CONCLUSIONS Low mtDNA copy number in peripheral blood is associated with an increased risk of subfertility and may represent a biomarker of natural fecundity.
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Affiliation(s)
- Andrea Busnelli
- Infertility Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via M. Fanti, 6, 20122, Milan, Italy. .,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.
| | - Debora Lattuada
- Department of Obstetrics and Gynaecology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Raffaella Rossetti
- Division of Endocrine and Metabolic Diseases, San Luca Hospital, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Alessio Paffoni
- Infertility Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via M. Fanti, 6, 20122, Milan, Italy
| | - Luca Persani
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Division of Endocrine and Metabolic Diseases, San Luca Hospital, IRCCS Istituto Auxologico Italiano, Milan, Italy
| | - Luigi Fedele
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Department of Obstetrics and Gynaecology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Edgardo Somigliana
- Infertility Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via M. Fanti, 6, 20122, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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14
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Pös O, Biró O, Szemes T, Nagy B. Circulating cell-free nucleic acids: characteristics and applications. Eur J Hum Genet 2018; 26:937-945. [PMID: 29681621 PMCID: PMC6018748 DOI: 10.1038/s41431-018-0132-4] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/07/2018] [Accepted: 02/23/2018] [Indexed: 12/11/2022] Open
Abstract
Liquid biopsy is becoming a very popular sample obtaining procedure, replacing the invasive sampling methods for the diagnostic protocols. The advantages of this method include the possibility to isolate cell-free nucleic acids (cfNAs) for diagnostic or screening purposes. A comprehensive review combining all current and perspective applications of cell-free nucleic acids is missing. Published articles are dealing with one type of cfNAs, or discuss them from the perspective of single disorder. We collected here all known types of cfNAs which are known to be present in biological fluids and could be involved in further studies to find out the exact biological role of them in normal physiological and pathological conditions. Beyond doubt, cfNAs will have a tremendous effect in future screening, diagnosis, prognosis, follow-up and treatment of cardiovascular diseases, cancer, diabetes and other diseases.
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Affiliation(s)
- Ondrej Pös
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
| | - Orsolya Biró
- Genetic Laboratory, 1st Department of Obstetrics and Gynecology, Semmelweis University, Budapest, Hungary
| | - Tomas Szemes
- Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
| | - Bálint Nagy
- Department of Human Genetics, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
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15
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Zhang J, Xu Y, Xu S, Liu Y, Yu L, Li Z, Xue X, Wang H. Plasma Circular RNAs, Hsa_circRNA_025016, Predict Postoperative Atrial Fibrillation After Isolated Off‐Pump Coronary Artery Bypass Grafting. J Am Heart Assoc 2018. [PMCID: PMC5850143 DOI: 10.1161/jaha.117.006642] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Circular RNAs (circRNAs) are pervasively expressed in highly divergent eukaryotes and are stable in body fluids. However, the link between circRNAs and onset of atrial fibrillation (AF) has not previously been investigated. We aimed to identify plasma circRNAs that are able predict AF after cardiac surgery. Methods and Results Plasma circRNA expression profiles were investigated in a total of 769 patients with or without AF after isolated off‐pump coronary artery bypass grafting. First, a circRNA microarray was used to screen 13 617 human circRNAs in plasma samples from patients in the discovery cohort (n=30). A quantitative polymerase chain reaction assay was then applied to evaluate the expression of 9 selected circRNAs in the training cohort (n=365). This approach revealed that hsa_circRNA_025016 was upregulated in patients with new‐onset AF with a high diagnostic accuracy as assessed by the area under the receiver operating characteristic curve (=0.802). Additionally, a satisfactory diagnostic performance of hsa_circRNA_025016 was found in the validation cohort (n=284). Furthermore, Kyoto Encyclopedia of Genes and Genomes biological pathway analysis indicated that hsa_circ_025016 participated in melanogenesis, insulin secretion, and the thyroid hormone signaling pathway. A positive correlation between hsa_circ_025016 and fasting blood glucose was also identified in both cohorts. Conclusions Hsa_circ_025016 is a potential biomarker for predicting new‐onset AF after isolated off‐pump coronary artery bypass grafting.
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Affiliation(s)
- Jian Zhang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
| | - Yinli Xu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
| | - Shu Xu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
| | - Yu Liu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
| | - Liming Yu
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
| | - Zhi Li
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
| | - Xiaodong Xue
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
| | - Huishan Wang
- Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, Liaoning, China
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16
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Affiliation(s)
- Yolan J Reckman
- Department of Experimental Cardiology, Academic Medical Center, Amsterdam, The Netherlands
| | - Esther E Creemers
- Department of Experimental Cardiology, Academic Medical Center, Amsterdam, The Netherlands
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