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Bates L, Krause-Hauch M, Wang H, Fatmi MK, Li Z, Chen Q, Ren D, Li J, Lesnefsky EJ. Acute, High Dose Metformin Therapy at Reperfusion Decreases Infarct Size in the High-Risk Aging Heart. Aging Dis 2023; 14:1488-1491. [PMID: 37196121 PMCID: PMC10529738 DOI: 10.14336/ad.2023.0205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/05/2023] [Indexed: 05/19/2023] Open
Abstract
Elderly patients (age > 75) sustain larger infarcts with greater mortality from ST elevation myocardial infarcts (STEMI) despite successful reperfusion treatment. Elderly age remains an independent risk despite correction for clinical and angiographic variables. The elderly represent a high-risk population and may benefit from treatment in addition to reperfusion alone. We hypothesized that modulation of cardiac signaling and metabolism with acute, high dose metformin given at reperfusion would exhibit additional cardioprotection. Using a translational aging murine model (22-24-month C57BL/6J mice) of in vivo STEMI (45 min artery occlusion with reperfusion for 24 hours); treatment acutely at reperfusion by high dose metformin decreased infarct size and enhanced contractile recovery, demonstrating cardioprotection in the high-risk aging heart.
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Affiliation(s)
- Lauryn Bates
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Meredith Krause-Hauch
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Hao Wang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Mohammad Kasim Fatmi
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Zehui Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Qun Chen
- Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Edward J Lesnefsky
- Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
- Medical Service, Central Virginia VA Health Care System, Richmond, VA, USA
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2
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Botros M, Alsaghayer A, Tanabe C, Armas K, Mabry M, Goodarzi A, Yau S, Youssef J, Huang H, Ren D, Suarez E. Extending Cold Ischemic Time Using LUNGguard: A Single Center Experience in Time Shifting. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.1442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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Fatmi MK, Ren D, Fedorova J, Zoungrana LI, Wang H, Davitt K, Li Z, Iglesias M, Lesnefsky EJ, Krause‐Hauch M, Li J. Cardiomyocyte Pdk4 response is associated with metabolic maladaptation in aging. Aging Cell 2023; 22:e13800. [PMID: 36797808 PMCID: PMC10086528 DOI: 10.1111/acel.13800] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 01/19/2023] [Accepted: 02/03/2023] [Indexed: 02/18/2023] Open
Abstract
Ischemic heart disease (IHD) is the leading cause of death, with age range being the primary factor for development. The mechanisms by which aging increases vulnerability to ischemic insult are not well understood. We aim to use single-cell RNA sequencing to discover transcriptional differences in various cell types between aged and young mice, which may contribute to aged-related vulnerability to ischemic insult. Utilizing 10× Genomics Single-Cell RNA sequencing, we were able to complete bioinformatic analysis to identity novel differential gene expression. During the analysis of our collected samples, we detected Pyruvate Dehydrogenase Kinase 4 (Pdk4) expression to be remarkably differentially expressed. Particularly in cardiomyocyte cell populations, Pdk4 was found to be significantly upregulated in the young mouse population compared to the aged mice under ischemic/reperfusion conditions. Pdk4 is responsible for inhibiting the enzyme pyruvate dehydrogenase, resulting in the regulation of glucose metabolism. Due to decreased Pdk4 expression in aged cardiomyocytes, there may be an increased reliance on glucose oxidization for energy. Through biochemical metabolomics analysis, it was observed that there is a greater abundance of pyruvate in young hearts in contrast to their aged counterparts, indicating less glycolytic activity. We believe that Pdk4 response provides valuable insight towards mechanisms that allow for the young heart to handle ischemic insult stress more effectively than the aged heart.
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Affiliation(s)
| | - Di Ren
- Department of SurgeryMorsani College of MedicineTampaFloridaUSA
| | - Julia Fedorova
- Department of SurgeryMorsani College of MedicineTampaFloridaUSA
| | | | - Hao Wang
- Department of SurgeryMorsani College of MedicineTampaFloridaUSA
| | - Kayla Davitt
- Department of SurgeryMorsani College of MedicineTampaFloridaUSA
| | - Zehui Li
- Department of Medical Engineering, College of Engineering and Morsani College of MedicineUniversity of South FloridaTampaFloridaUSA
| | | | - Edward J. Lesnefsky
- Pauley Heart Center, Division of Cardiology, Department of Internal MedicineVirginia Commonwealth UniversityRichmondVirginiaUSA
- Cardiology Section, Medical Service, Richmond Department of Veterans Affairs Medical CenterRichmondVirginiaUSA
| | - Meredith Krause‐Hauch
- Department of SurgeryMorsani College of MedicineTampaFloridaUSA
- James A. Haley Veterans' HospitalTampaFloridaUSA
| | - Ji Li
- Department of SurgeryMorsani College of MedicineTampaFloridaUSA
- James A. Haley Veterans' HospitalTampaFloridaUSA
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4
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Iglesias M, Wang H, Krause-Hauch M, Ren D, Zoungrana LI, Li Z, Zhang J, Wei J, Yadav N, Patel K, Fatmi MK, Liu R, Lesnefsky EJ, Li J. Sestrin2 Mediates Metformin Rescued the Age-Related Cardiac Dysfunctions of Cardiorenal Syndrome Type 3. Cells 2023; 12:845. [PMID: 36980186 PMCID: PMC10047033 DOI: 10.3390/cells12060845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 03/01/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Acute kidney injury (AKI) leads to acute cardiac injury and dysfunction in cardiorenal syndrome Type 3 (CRS3) through oxidative stress (OS). The stress-inducible Sestrin2 (Sesn2) protein reduces reactive oxygen species (ROS) accumulation and activates AMP-dependent protein kinase (AMPK) to regulate cellular metabolism and energetics during OS. Sesn2 levels and its protective effects decline in the aged heart. Antidiabetic drug metformin upregulates Sesn2 levels in response to ischemia-reperfusion (IR) stress. However, the role of metformin in CRS3 remains unknown. This study seeks to explore how the age-related decrease in cardiac Sesn2 levels contributes to cardiac intolerance to AKI-induced insults, and how metformin ameliorates CRS3 through Sesn2. Young (3-5 months) and aged (21-23 months) C57BL/6J wild-type mice along with cardiomyocyte-specific knockout (cSesn2-/-) and their wild type of littermate (Sesn2f/f) C57BL/6J mice were subjected to AKI for 15 min followed by 24 h of reperfusion. Cardiac and mitochondrial functions were evaluated through echocardiograms and seahorse mitochondria respirational analysis. Renal and cardiac tissue was collected for histological analysis and immunoblotting. The results indicate that metformin could significantly rescue AKI-induced cardiac dysfunction and injury via Sesn2 through an improvement in systolic and diastolic function, fibrotic and cellular damage, and mitochondrial function in young, Sesn2f/f, and especially aged mice. Metformin significantly increased Sesn2 expression under AKI stress in the aged left-ventricular tissue. Thus, this study suggests that Sesn2 mediates the cardioprotective effects of metformin during post-AKI.
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Affiliation(s)
- Migdalia Iglesias
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Hao Wang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Meredith Krause-Hauch
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
- James A. Haley Veterans’ Hospital, Tampa, FL 33612, USA
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Linda Ines Zoungrana
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Zehui Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Jie Zhang
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Jin Wei
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Nikita Yadav
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Kshama Patel
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Mohammad Kasim Fatmi
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Ruisheng Liu
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
| | - Edward J. Lesnefsky
- Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23284, USA
- Cardiology Section, Medical Service, Richmond Department of Veterans Affairs Medical Center, Richmond, VA 23249, USA
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33620, USA
- James A. Haley Veterans’ Hospital, Tampa, FL 33612, USA
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5
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Quan N, Li X, Zhang J, Han Y, Sun W, Ren D, Tong Q, Li J. Corrigendum to "Substrate metabolism regulated by Sestrin2-mTORC1 alleviates pressure overload-induced cardiac hypertrophy in aged heart" [Redox Biol. 36 (2020) 101637/doi:10.1016/j.redox.2020.101637]. Redox Biol 2023; 59:102602. [PMID: 36628777 PMCID: PMC10461070 DOI: 10.1016/j.redox.2023.102602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Affiliation(s)
- Nanhu Quan
- Department of Cardiovascular Center, The First Hospital of Jilin University, Changchun, 130021, China; Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA.
| | - Xuan Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Jingwen Zhang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Ying Han
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Weiju Sun
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Qian Tong
- Department of Cardiovascular Center, The First Hospital of Jilin University, Changchun, 130021, China.
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
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6
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Jovanovic A, Xu B, Zhu C, Ren D, Wang H, Krause-Hauch M, Abel ED, Li J, Xiang YK. Characterizing Adrenergic Regulation of Glucose Transporter 4-Mediated Glucose Uptake and Metabolism in the Heart. JACC Basic Transl Sci 2023. [DOI: 10.1016/j.jacbts.2022.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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7
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Van Le TN, Zoungrana LI, Wang H, Fatmi MK, Ren D, Krause-Hauch M, Li J. Sirtuin 1 aggravates hypertrophic heart failure caused by pressure overload via shifting energy metabolism. Biochem Biophys Res Commun 2022; 637:170-180. [PMID: 36403480 PMCID: PMC9752708 DOI: 10.1016/j.bbrc.2022.11.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 11/15/2022]
Abstract
Sirtuin1 (SIRT1) is involved in regulating substrate metabolism in the cardiovascular system. Metabolic homeostasis plays a critical role in hypertrophic heart failure. We hypothesize that cardiac SIRT1 can modulate substrate metabolism during pressure overload-induced heart failure. The inducible cardiomyocyte Sirt1 knockout (icSirt1-/-) and its wild type littermates (Sirt1f/f) C57BL/6J mice were subjected to transverse aortic constriction (TAC) surgery to induce pressure overload. The pressure overload induces upregulation of cardiac SIRT1 in Sirt1f/f but not icSirt1-/- mice. The cardiac contractile dysfunctions caused by TAC-induced pressure overload occurred in Sirt1f/f but not in icSirt1-/- mice. Intriguingly, Sirt1f/f heart showed a drastic reduction in systolic contractility and electric signals during post-TAC surgery, whereas icSirt1-/- heart demonstrated significant resistance to pathological stress by TAC-induced pressure overload as evidenced by no significant changes in systolic contractile functions and electric properties. The targeted proteomics showed that the pressure overload triggered downregulation of the SIRT1-associated IDH2 (isocitrate dehydrogenase 2) that resulted in increased oxidative stress in mitochondria. Moreover, metabolic alterations were observed in Sirt1f/f but not in icSirt1-/- heart in response to TAC-induced pressure overload. Thus, SIRT1 interferes with metabolic homeostasis through mitochondrial IDH2 during pressure overload. Inhibition of SIRT1 activity benefits cardiac functions under pressure overload-related pathological conditions.
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Affiliation(s)
- Tran Ngoc Van Le
- Department of Surgery, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Linda Ines Zoungrana
- Department of Surgery, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Hao Wang
- Department of Surgery, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Mohammad Kasim Fatmi
- Department of Surgery, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Di Ren
- Department of Surgery, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Meredith Krause-Hauch
- Department of Surgery, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA; James A. Haley Veterans Hospital, Tampa, FL, 33612, USA
| | - Ji Li
- Department of Surgery, USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA; James A. Haley Veterans Hospital, Tampa, FL, 33612, USA.
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8
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Dai X, Wang K, Fan J, Liu H, Fan X, Lin Q, Chen Y, Chen H, Li Y, Liu H, Chen O, Chen J, Li X, Ren D, Li J, Conklin DJ, Wintergerst KA, Li Y, Cai L, Deng Z, Yan X, Tan Y. Nrf2 transcriptional upregulation of IDH2 to tune mitochondrial dynamics and rescue angiogenic function of diabetic EPCs. Redox Biol 2022; 56:102449. [PMID: 36063728 PMCID: PMC9463384 DOI: 10.1016/j.redox.2022.102449] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 07/30/2022] [Accepted: 08/15/2022] [Indexed: 01/11/2023] Open
Abstract
Endothelial progenitor cells (EPCs) are reduced in number and impaired in function in diabetic patients. Whether and how Nrf2 regulates the function of diabetic EPCs remains unclear. In this study, we found that the expression of Nrf2 and its downstream genes were decreased in EPCs from both diabetic patients and db/db mice. Survival ability and angiogenic function of EPCs from diabetic patients and db/db mice also were impaired. Gain- and loss-of-function studies, respectively, showed that knockdown of Nrf2 increased apoptosis and impaired tube formation in EPCs from healthy donors and wild-type mice, while Nrf2 overexpression decreased apoptosis and rescued tube formation in EPCs from diabetic patients and db/db mice. Additionally, proangiogenic function of Nrf2-manipulated mouse EPCs was validated in db/db mice with hind limb ischemia. Mechanistic studies demonstrated that diabetes induced mitochondrial fragmentation and dysfunction of EPCs by dysregulating the abundance of proteins controlling mitochondrial dynamics; upregulating Nrf2 expression attenuated diabetes-induced mitochondrial fragmentation and dysfunction and rectified the abundance of proteins controlling mitochondrial dynamics. Further RNA-sequencing analysis demonstrated that Nrf2 specifically upregulated the transcription of isocitrate dehydrogenase 2 (IDH2), a key enzyme regulating tricarboxylic acid cycle and mitochondrial function. Overexpression of IDH2 rectified Nrf2 knockdown- or diabetes-induced mitochondrial fragmentation and EPC dysfunction. In a therapeutic approach, supplementation of an Nrf2 activator sulforaphane enhanced angiogenesis and blood perfusion recovery in db/db mice with hind limb ischemia. Collectively, these findings indicate that Nrf2 is a potential therapeutic target for improving diabetic EPC function. Thus, elevating Nrf2 expression enhances EPC resistance to diabetes-induced oxidative damage and improves therapeutic efficacy of EPCs in treating diabetic limb ischemia likely via transcriptional upregulating IDH2 expression and improving mitochondrial function of diabetic EPCs.
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Affiliation(s)
- Xiaozhen Dai
- School of Biosciences and Technology, Chengdu Medical College, Chengdu, Sichuan, China,Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA
| | - Kai Wang
- Department of Pediatrics, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jiawei Fan
- School of Biosciences and Technology, Chengdu Medical College, Chengdu, Sichuan, China
| | - Hanjie Liu
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Xia Fan
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China
| | - Qian Lin
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA
| | - Yuhang Chen
- School of Laboratory Medicine, Chengdu Medical College, Chengdu, China
| | - Hu Chen
- The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Yao Li
- The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Hairong Liu
- The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, China
| | - Oscar Chen
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA
| | - Jing Chen
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA
| | - Xiaohong Li
- Kentucky IDeA Network for Biomedical Research Excellence Bioinformatics Core, University of Louisville, Louisville, KY, USA
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Daniel J. Conklin
- Department of Medicine and Diabetes and Obesity Center, University of Louisville, Louisville, KY, USA
| | - Kupper A. Wintergerst
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA,Division of Endocrinology, Department of Pediatrics, University of Louisville, Norton Children’s Hospital, Louisville, KY, USA,Wendy L. Novak Diabetes Care Center, Norton Children’s Hospital, Louisville, KY, USA
| | - Yu Li
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Shanghai Institute of Nutrition and Health, Shanghai Institutes for Biological Sciences, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai, China
| | - Lu Cai
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA,Wendy L. Novak Diabetes Care Center, Norton Children’s Hospital, Louisville, KY, USA
| | - Zhongbin Deng
- Department of Surgery, Division of Immunotherapy, University of Louisville, Louisville, KY, USA
| | - Xiaoqing Yan
- Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China,Corresponding author. Chinese-American Research Institute for Diabetic Complications, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, China.
| | - Yi Tan
- Pediatric Research Institute, Department of Pediatrics, University of Louisville School of Medicine, Louisville, KY, USA,Wendy L. Novak Diabetes Care Center, Norton Children’s Hospital, Louisville, KY, USA,Corresponding author. Pediatric Research Institute, Department of Pediatrics of the University of Louisville School of Medicine, 570 South Preston Street, Baxter-I Building Suite 304E, Louisville, KY, 40202 USA.
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9
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Kim M, nikouee A, Zou R, Ren D, He Z, Li J, Wang L, Djukovic D, Raftery D, Purcell HJ, Promislow D, Sun Y, Goodarzi M, Zhang QJ, Liu ZP, Zang QS. Abstract P3049: Age-independent Cardiac Protection By Pharmacological Activation Of Beclin-1 During Endotoxemia And Its Association With Energy Metabolic Reprogramming In Myocardium-A Targeted Metabolomics Study. Circ Res 2022. [DOI: 10.1161/res.131.suppl_1.p3049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
We previously showed that Beclin-1-dependent autophagy is cardiac protective in a rodent model of endotoxemia using young adult mice. In this report, we compared the potential therapeutic effects of pharmacological Beclin-1 activating peptide, TB-peptide, on the cardiac outcomes of young adult and aged mice during endotoxemia. We further examined alterations in myocardial metabolism induced by lipopolysaccharide (LPS) challenge with and without the TB-peptide treatment.
Methods:
C57BL/6J mice of 10-week and 24-month-old were challenged by LPS at doses at which cardiac dysfunction occurred. Following the treatment of TB-peptide or control vehicle, heart contractility, circulating cytokines, and myocardial autophagy were evaluated. A targeted metabolomics assay was applied to analyze cardiac metabolism.
Results:
TB-peptide boosted autophagic response, attenuated cytokine production, and improved cardiac performance in both young and aged mice during endotoxemia. A targeted metabolomics assay was designed to detect a pool of 361 known metabolites, of which 156 were detected in at least one of the heart tissue samples. LPS-induced impairments were found in glucose and amino acid (AA) metabolisms in mice of all ages, and TB-peptide provided ameliorative effects to rescue these alterations. However, lipid metabolites were upregulated in the young group but moderately downregulated in the aged by LPS, suggesting an age-dependent response. TB-peptide mitigated LPS-mediated trend of lipids in the young mice but provided little effect on the aged ones.
Conclusion:
Pharmacological activation of Beclin-1 by TB-peptide protects the heart in both young and aged population during endotoxemia, suggest a therapeutic potential for sepsis-induced cardiomyopathy. Metabolomics analysis suggests that this age-independent protection by TB-peptide is associated with reprograming of energy production via glucose and AA metabolisms.
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Affiliation(s)
- Matthew Kim
- Loyola Univ Chicago Stritch Sch of Medicine, Maywood, IL
| | - azadeh nikouee
- Loyola Univ Chicago Stritch Sch of Medicine, Maywood, IL
| | | | - Di Ren
- Univ of South Florida, Tampa, FL
| | | | - Ji Li
- Univ of South Florida, Tampa, FL
| | - Lu Wang
- Univ of Washington, Seattle, WA
| | | | | | | | | | - Yuxiao Sun
- Univ of Texas Southwestern Med Cntr, Dallas, TX
| | | | | | | | - Qun S Zang
- Loyola Univ Chicago Stritch Sch of Medicine, Maywood, IL
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10
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Li Y, Li GY, Feng YW, Liang XM, Ren D, Zhang L, Meng XK, Jia-zeWang, Wen S, Yan-Hong C, Xi-Si H, Zhi-yeZou, Li XH, Lai K, Yang M, Shui-qingGui, Han DX, Yuan LJ, Gao JP, Han P, Tu HB, Rao GH, Ye Y. Study on the clinical indications for plasma as an alternative to the bronchoalveolar lavage fluid metagenomic next-generation sequencing test to detect consistent pathogens for septic patients in intensive care units. J Infect 2022; 85:436-480. [PMID: 35907567 DOI: 10.1016/j.jinf.2022.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 10/16/2022]
Affiliation(s)
- Ying Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Gui-Yun Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Yong-Wen Feng
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Xiao-Min Liang
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Di Ren
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Lin Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Xin-Ke Meng
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Jia-zeWang
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Sha Wen
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Chen Yan-Hong
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - He Xi-Si
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Zhi-yeZou
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Xiao-Hong Li
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Kai Lai
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Mei Yang
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Shui-qingGui
- Department of Critical Care Medicine, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China
| | - Dong-Xu Han
- Genskey Medical Technology Co., Ltd, Beijing, China
| | - Li-Juan Yuan
- Genskey Medical Technology Co., Ltd, Beijing, China
| | | | - Peng Han
- Genskey Medical Technology Co., Ltd, Beijing, China
| | - Hao-Bo Tu
- Genskey Medical Technology Co., Ltd, Beijing, China
| | - Guan-Hua Rao
- Genskey Medical Technology Co., Ltd, Beijing, China.
| | - Yu Ye
- Department of Neurosurgery, Shenzhen Long-gang Central Hospital, Shenzhen, China
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11
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Kim M, Nikouee A, Zou R, Ren D, He Z, Li J, Wang L, Djukovic D, Raftery D, Purcell H, Promislow D, Sun Y, Goodarzi M, Zhang QJ, Liu ZP, Zang QS. Age-Independent Cardiac Protection by Pharmacological Activation of Beclin-1 During Endotoxemia and Its Association With Energy Metabolic Reprograming in Myocardium-A Targeted Metabolomics Study. J Am Heart Assoc 2022; 11:e025310. [PMID: 35861821 PMCID: PMC9707816 DOI: 10.1161/jaha.122.025310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background We showed that Beclin-1-dependent autophagy protects the heart in young and adult mice that underwent endotoxemia. Herein, we compared the potential therapeutic effects of Beclin-1 activating peptide, TB-peptide, on endotoxemia-induced cardiac outcomes in young adult and aged mice. We further evaluated lipopolysaccharide (lipopolysaccharide)-induced and TB-peptide treatment-mediated alterations in myocardial metabolism. Methods and Results C57BL/6J mice that were 10 weeks and 24 months old were challenged by lipopolysaccharide using doses at which cardiac dysfunction occurred. Following the treatment of TB-peptide or control vehicle, heart contractility, circulating cytokines, and myocardial autophagy were evaluated. We detected that TB-peptide boosted autophagy, attenuated cytokines, and improved cardiac performance in both young and aged mice during endotoxemia. A targeted metabolomics assay was designed to detect a pool of 361 known metabolites, of which 156 were detected in at least 1 of the heart tissue samples. Lipopolysaccharide-induced impairments were found in glucose and amino acid metabolisms in mice of all ages, and TB-peptide ameliorated these alterations. However, lipid metabolites were upregulated in the young group but moderately downregulated in the aged by lipopolysaccharide, suggesting an age-dependent response. TB-peptide mitigated lipopolysaccharide-mediated trend of lipids in the young mice but had little effect on the aged. (Study registration: Project DOI: https://doi.org/10.21228/M8K11W). Conclusions Pharmacological activation of Beclin-1 by TB-peptide is cardiac protective in both young and aged population during endotoxemia, suggest a therapeutic potential for sepsis-induced cardiomyopathy. Metabolomics analysis suggests that an age-independent protection by TB-peptide is associated with reprograming of energy production via glucose and amino acid metabolisms.
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Affiliation(s)
- Matthew Kim
- Department of Surgery, Burn & Shock Trauma Research Institute Loyola University Chicago Stritch School of Medicine Maywood IL
| | - Azadeh Nikouee
- Department of Surgery, Burn & Shock Trauma Research Institute Loyola University Chicago Stritch School of Medicine Maywood IL
| | - Raymond Zou
- Department of Biological Sciences Rice University Houston TX
| | - Di Ren
- Department of Surgery University of South Florida Tampa FL
| | - Zhibin He
- Department of Surgery University of South Florida Tampa FL
| | - Ji Li
- Department of Surgery University of South Florida Tampa FL
| | - Lu Wang
- Department of Environmental and Occupational Health Sciences University of Washington Seattle WA
| | - Danijel Djukovic
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center University of Washington Seattle WA
| | - Daniel Raftery
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center University of Washington Seattle WA
| | - Hayley Purcell
- Department of Anesthesiology and Pain Medicine, Northwest Metabolomics Research Center University of Washington Seattle WA
| | - Daniel Promislow
- Department of Lab Medicine & Pathology University of Washington School of Medicine Seattle WA.,Department of Biology University of Washington School of Medicine Seattle WA
| | - Yuxiao Sun
- Department of Surgery University of Texas Southwestern Medical Center Dallas TX
| | - Mohammad Goodarzi
- Department of Immunology University of Texas Southwestern Medical Center Dallas TX
| | - Qing-Jun Zhang
- Cardiology Division, Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX
| | - Zhi-Ping Liu
- Cardiology Division, Department of Internal Medicine University of Texas Southwestern Medical Center Dallas TX
| | - Qun Sophia Zang
- Department of Surgery, Burn & Shock Trauma Research Institute Loyola University Chicago Stritch School of Medicine Maywood IL
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12
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Zoungrana LI, Krause-Hauch M, Wang H, Fatmi MK, Bates L, Li Z, Kulkarni P, Ren D, Li J. The Interaction of mTOR and Nrf2 in Neurogenesis and Its Implication in Neurodegenerative Diseases. Cells 2022; 11:cells11132048. [PMID: 35805130 PMCID: PMC9265429 DOI: 10.3390/cells11132048] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/23/2022] [Accepted: 06/26/2022] [Indexed: 12/24/2022] Open
Abstract
Neurogenesis occurs in the brain during embryonic development and throughout adulthood. Neurogenesis occurs in the hippocampus and under normal conditions and persists in two regions of the brain—the subgranular zone (SGZ) in the dentate gyrus of the hippocampus and the subventricular zone (SVZ) of the lateral ventricles. As the critical role in neurogenesis, the neural stem cells have the capacity to differentiate into various cells and to self-renew. This process is controlled through different methods. The mammalian target of rapamycin (mTOR) controls cellular growth, cell proliferation, apoptosis, and autophagy. The transcription factor Nrf2 (nuclear factor erythroid 2-related factor 2) is a major regulator of metabolism, protein quality control, and antioxidative defense, and is linked to neurogenesis. However, dysregulation in neurogenesis, mTOR, and Nrf2 activity have all been associated with neurodegenerative diseases such as Alzheimer’s, Huntington’s, and Parkinson’s. Understanding the role of these complexes in both neurogenesis and neurodegenerative disease could be necessary to develop future therapies. Here, we review both mTOR and Nrf2 complexes, their crosstalk and role in neurogenesis, and their implication in neurodegenerative diseases.
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Affiliation(s)
- Linda Ines Zoungrana
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.I.Z.); (M.K.-H.); (H.W.); (M.K.F.); (L.B.); (D.R.)
| | - Meredith Krause-Hauch
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.I.Z.); (M.K.-H.); (H.W.); (M.K.F.); (L.B.); (D.R.)
| | - Hao Wang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.I.Z.); (M.K.-H.); (H.W.); (M.K.F.); (L.B.); (D.R.)
| | - Mohammad Kasim Fatmi
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.I.Z.); (M.K.-H.); (H.W.); (M.K.F.); (L.B.); (D.R.)
| | - Lauryn Bates
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.I.Z.); (M.K.-H.); (H.W.); (M.K.F.); (L.B.); (D.R.)
| | - Zehui Li
- Department of Medical Engineering, College of Engineering and Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (Z.L.); (P.K.)
| | - Parth Kulkarni
- Department of Medical Engineering, College of Engineering and Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (Z.L.); (P.K.)
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.I.Z.); (M.K.-H.); (H.W.); (M.K.F.); (L.B.); (D.R.)
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (L.I.Z.); (M.K.-H.); (H.W.); (M.K.F.); (L.B.); (D.R.)
- Correspondence: ; Tel.: +1-813-974-4917
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13
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Murphy J, Le TNV, Fedorova J, Yang Y, Krause-Hauch M, Davitt K, Zoungrana LI, Fatmi MK, Lesnefsky EJ, Li J, Ren D. The Cardiac Dysfunction Caused by Metabolic Alterations in Alzheimer's Disease. Front Cardiovasc Med 2022; 9:850538. [PMID: 35274014 PMCID: PMC8902161 DOI: 10.3389/fcvm.2022.850538] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 01/26/2022] [Indexed: 12/17/2022] Open
Abstract
A progressive defect in the energy generation pathway is implicated in multiple aging-related diseases, including cardiovascular conditions and Alzheimer's Disease (AD). However, evidence of the pathogenesis of cardiac dysfunction in AD and the associations between the two organ diseases need further elucidation. This study aims to characterize cellular defects resulting in decreased cardiac function in AD-model. 5XFAD mice, a strain expressing five mutations in human APP and PS1 that shows robust Aβ production with visible plaques at 2 months and were used in this study as a model of AD. 5XFAD mice and wild-type (WT) counterparts were subjected to echocardiography at 2-, 4-, and 6-month, and 5XFAD had a significant reduction in cardiac fractional shortening and ejection fraction compared to WT. Additionally, 5XFAD mice had decreased observed electrical signals demonstrated as decreased R, P, T wave amplitudes. In isolated cardiomyocytes, 5XFAD mice showed decreased fraction shortening, rate of shortening, as well as the degree of transient calcium influx. To reveal the mechanism by which AD leads to cardiac systolic dysfunction, the immunoblotting analysis showed increased activation of AMP-activated protein kinase (AMPK) in 5XFAD left ventricular and brain tissue, indicating altered energy metabolism. Mito Stress Assays examining mitochondrial function revealed decreased basal and maximal oxygen consumption rate, as well as defective pyruvate dehydrogenase activity in the 5XFAD heart and brain. Cellular inflammation was provoked in the 5XFAD heart and brain marked by the increase of reactive oxygen species accumulation and upregulation of inflammatory mediator activities. Finally, AD pathological phenotype with increased deposition of Aβ and defective cognitive function was observed in 6-month 5XFAD mice. In addition, elevated fibrosis was observed in the 6-month 5XFAD heart. The results implicated that AD led to defective mitochondrial function, and increased inflammation which caused the decrease in contractility of the heart.
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Affiliation(s)
- Jiayuan Murphy
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Tran Ngoc Van Le
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Julia Fedorova
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Yi Yang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Meredith Krause-Hauch
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Kayla Davitt
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Linda Ines Zoungrana
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Mohammad Kasim Fatmi
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Edward J. Lesnefsky
- Pauley Heart Center, Division of Cardiology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, United States
- Cardiology Section, Medical Service, Richmond Department of Veterans Affairs Medical Center, Richmond, VA, United States
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
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14
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Abstract
BACKGROUND APC (activated protein C) is a plasma serine protease with anticoagulant and anti-inflammatory activities. EPCR (Endothelial protein C receptor) is associated with APC's activity and mediates its downstream signaling events. APC exerts cardioprotective effects during ischemia and reperfusion (I/R). This study aims to characterize the role of the APC-EPCR axis in ischemic insults in aging. METHODS Young (3-4 months) and aged (24-26 months) wild-type C57BL/6J mice, as well as EPCR point mutation (EPCRR84A/R84A) knockin C57BL/6J mice incapable of interaction with APC and its wild type of littermate C57BL/6J mice, were subjected to I/R. Wild-type APC, signaling-selective APC-2Cys, or anticoagulant-selective APC-E170A were administrated before reperfusion. RESULTS The results demonstrated that cardiac I/R reduces APC activity, and the APC activity was impaired in the aged versus young hearts possibly attributable to the declined EPCR level with aging. Serum EPCR measurement showed that I/R triggered the shedding of membrane EPCR into circulation, while administration of APC attenuated the I/R-induced EPCR shedding in both young and aged hearts. Subsequent echocardiography showed that APC and APC-2Cys but not APC-E170A ameliorated cardiac dysfunction during I/R in both young and aged mice. Importantly, APC elevated the resistance of the aged heart to ischemic insults through stabilizing EPCR. However, all these cardioprotective effects of APC were blunted in the EPCRR84A/R84A mice versus its wild-type littermates. The ex vivo working heart and metabolomics results demonstrated that AMPK (AMP-activated protein kinase) mediates acute adaptive response while AKT (protein kinase B) is involved in chronic metabolic programming in the hearts with APC treatment. CONCLUSIONS I/R stress causes shedding of the membrane EPCR in the heart, and administration of APC prevents I/R-induced cardiac EPCR shedding that is critical for limiting cardiac damage in aging.
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Affiliation(s)
- Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612
| | - Julia Fedorova
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612
| | - Kayla Davitt
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612
| | - Tran Ngoc Van Le
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612
| | - John H. Griffin
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037
| | - Patricia C. Liaw
- Thrombosis and Atherosclerosis Research Institute, Department of Medicine, McMaster University, Hamilton, ON, Canada
| | - Charles T. Esmon
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104
| | - Alireza R. Rezaie
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612
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15
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Joladarashi D, Zhu Y, Willman M, Nash K, Cimini M, Thandavarayan RA, Youker KA, Song X, Ren D, Li J, Kishore R, Krishnamurthy P, Wang L. STK35 Gene Therapy Attenuates Endothelial Dysfunction and Improves Cardiac Function in Diabetes. Front Cardiovasc Med 2022; 8:798091. [PMID: 35097018 PMCID: PMC8792894 DOI: 10.3389/fcvm.2021.798091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 12/22/2021] [Indexed: 11/25/2022] Open
Abstract
Diabetic cardiomyopathy (DCM) is characterized by microvascular pathology and interstitial fibrosis that leads to progressive heart failure. The mechanisms underlying DCM pathogenesis remain obscure, and no effective treatments for the disease have been available. In the present study, we observed that STK35, a novel kinase, is decreased in the diabetic human heart. High glucose treatment, mimicking hyperglycemia in diabetes, downregulated STK35 expression in mouse cardiac endothelial cells (MCEC). Knockdown of STK35 attenuated MCEC proliferation, migration, and tube formation, whereas STK35 overexpression restored the high glucose-suppressed MCEC migration and tube formation. Angiogenesis gene PCR array analysis revealed that HG downregulated the expression of several angiogenic genes, and this suppression was fully restored by STK35 overexpression. Intravenous injection of AAV9-STK35 viral particles successfully overexpressed STK35 in diabetic mouse hearts, leading to increased vascular density, suppression of fibrosis in the heart, and amelioration of left ventricular function. Altogether, our results suggest that hyperglycemia downregulates endothelial STK35 expression, leading to microvascular dysfunction in diabetic hearts, representing a novel mechanism underlying DCM pathogenesis. Our study also emerges STK35 is a novel gene therapeutic target for preventing and treating DCM.
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Affiliation(s)
- Darukeshwara Joladarashi
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, Bryd Alzheimer's Research Institute, University of South Florida, Tampa, FL, United States
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Yanan Zhu
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, Bryd Alzheimer's Research Institute, University of South Florida, Tampa, FL, United States
| | - Matthew Willman
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, Bryd Alzheimer's Research Institute, University of South Florida, Tampa, FL, United States
| | - Kevin Nash
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, Bryd Alzheimer's Research Institute, University of South Florida, Tampa, FL, United States
| | - Maria Cimini
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | | | - Keith A. Youker
- Houston Methodist DeBakey Heart & Vascular Center, Houston, TX, United States
| | - Xuehong Song
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, Bryd Alzheimer's Research Institute, University of South Florida, Tampa, FL, United States
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Raj Kishore
- Center for Translational Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, United States
| | - Prasanna Krishnamurthy
- Department of Biomedical Engineering, The University of Alabama at Birmingham, Birmingham, AL, United States
- Prasanna Krishnamurthy
| | - Lianchun Wang
- Department of Molecular Pharmacology & Physiology, Morsani College of Medicine, Bryd Alzheimer's Research Institute, University of South Florida, Tampa, FL, United States
- *Correspondence: Lianchun Wang
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16
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Ren D, Ren C, Yao R, Zhang L, Liang X, Li G, Wang J, Meng X, Liu J, Ye Y, Li H, Wen S, Chen Y, Zhou D, He X, Li X, Lai K, Li Y, Gui S. The microbiological diagnostic performance of metagenomic next-generation sequencing in patients with sepsis. BMC Infect Dis 2021; 21:1257. [PMID: 34915851 PMCID: PMC8675530 DOI: 10.1186/s12879-021-06934-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In this study, we aimed to perform a comprehensive analysis on the metagenomic next-generation sequencing for the etiological diagnosis of septic patients, and further to establish optimal read values for detecting common pathogens. METHODS In this single-center retrospective study, septic patients who underwent pathogen detection by both microbial culture and metagenomic next-generation sequencing in the intensive care unit of the Second People's Hospital of Shenzhen from June 24, 2015, to October 20, 2019, were included. RESULTS A total of 193 patients with 305 detected specimens were included in the final analysis. The results of metagenomic next-generation sequencing showed significantly higher positive rates in samples from disparate loci, including blood, bronchoalveolar lavage fluid, and cerebrospinal fluid, as well as in the determination of various pathogens. The optimal diagnostic reads were 2893, 1825.5, and 892.5 for Acinetobacter baumannii, Pseudomonas aeruginosa, and Klebsiella pneumoniae, respectively. CONCLUSIONS The metagenomic next-generation sequencing is capable of identifying multiple pathogens in specimens from septic patients, and shows significantly higher positive rates than culture-based diagnostics. The optimal diagnostic reads for frequently detected microbes might be useful for the clinical application of metagenomic next-generation sequencing in terms of timely and accurately determining etiological pathogens for suspected and confirmed cases of sepsis due to well-performed data interpretation.
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Affiliation(s)
- Di Ren
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Chao Ren
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, 100048, People's Republic of China
| | - Renqi Yao
- Trauma Research Center, Fourth Medical Center of the Chinese PLA General Hospital, Beijing, 100048, People's Republic of China
| | - Lin Zhang
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xiaomin Liang
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Guiyun Li
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Jiaze Wang
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xinke Meng
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Jia Liu
- Research & Development, Dinfectome Inc., Nanjing, 213164, Jiangsu, China
| | - Yu Ye
- Department of Neurosurgery, Shenzhen Longgang Central Hospital (The Second Affiliated Hospital of the Chinese University of Hong Kong (Shenzhen)), Shenzhen, China
| | - Haoli Li
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Sha Wen
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Yanhong Chen
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Dan Zhou
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xisi He
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xiaohong Li
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Kai Lai
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Ying Li
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China.
| | - Shuiqing Gui
- Department of Critical Care Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, China.
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17
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Bates L, Fedorova J, Le V, Yang Y, Murphy J, Davitt K, Logan C, Ren D, Li J. Abstract 12111: Metformin Maintains Mitochondrial Integrity and Preserve Heart From Ischemia Reperfusion Injury Through Sestrin2-AMPK Signaling. Circulation 2021. [DOI: 10.1161/circ.144.suppl_1.12111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Introduction:
Metformin activates AMP-activated protein kinase (AMPK) to improve cardiac function during ischemia and reperfusion (I/R). We reported that Sestrin2 (Sesn2) is associated with AMPK and maintains oxidative phosphorylation (OXPHOS) under I/R stress. The role of age-related Sesn2-AMPK signaling in the beneficial actions of metformin on ischemic insults remains unknown.
Hypothesis:
Metformin maintains mitochondrial integrity and limits cardiac damage caused by ischemic insults through the Sesn2-AMPK signaling pathway.
Methods:
Young (3-6 months) and aged (22-24 months) C57BL/6J wild type mice, and 3 months of Sesn2
f/f
and cardiomyocyte-specific Sesn2 knockout (cSesn2
-/-
) C57BL/6J mice were subjected to 45 minutes of ischemia followed by 2 mM metformin injection 5 minutes before 24-hour of reperfusion. Cardiac function and myocardial infarction were determined with echocardiography and 2,3,5-triphenyl tetrazolium chloride staining. Immunoblotting determines the mechanism of metformin in modulating Sesn2 to preserve mitochondrial OXPHOS components. The Seahorse XF Analyzer examined the mitochondrial respiratory functions.
Results:
Metformin administration can significantly improve cardiac function and reduce myocardial infarction size during I/R conditions in both young and aged wild-type C57BL/6J mice. Intriguingly, the beneficial effects of metformin administration on cardiac function and myocardial infarction were significantly blunted in the cSesn2
-/-
versus Sesn2
f/f
C57BL/6J mice. The immunoblotting showed metformin treatment augmented mitochondrial OXPHOS Complex II levels in young/aged wild type, and Sesn2
f/f
but not cSesn2
-/-
heart during I/R stress. Moreover, the mitochondrial respiration data displayed that metformin treatment improved the respiration rate of mitochondrial states 2 and 3μ in the isolated cardiomyocytes from Sens2
f/f
but not from cSesn2
-/-
mouse hearts under I/R stress conditions.
Conclusions:
Metformin can stabilize age-related Sesn2 levels in cardiomyocytes and improve cardiac function under I/R stress through maintaining mitochondrial integrity. Metformin is a potential therapeutic drug for ischemic heart disease in the elderly.
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Affiliation(s)
| | | | - Van Le
- Surgery, Univ of South Florida, Tampa, FL
| | - Yi Yang
- Surgery, Univ of South Florida, Tampa, FL
| | | | | | - Cole Logan
- Surgery, Univ of South Florida, Tampa, FL
| | - Di Ren
- Univ of South Florida, Tampa, FL
| | - Ji Li
- Surgery, Univ of South Florida, Tampa, FL
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18
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Joladarashi D, Zhu Y, Cimini M, Thandavarayan R, Youker K, Nash K, Willman M, Song X, Ren D, Ji LL, Kishore R, Krishnamurthy P, Wang L. Abstract P313: Over-expression Of Serine Threonine Kinase 35 Improves Cardiac Function In Streptozotocin Induced Diabetic Mice. Circ Res 2021. [DOI: 10.1161/res.129.suppl_1.p313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Diabetic cardiomyopathy is a common complication in patients with diabetes and is associatedwith impaired responsiveness of ischemic myocardium to proangiogenic factors, subsequentlyleading to heart failure. STK35, a novel kinase that binds to nuclear actin, has been shown toregulate important cellular functions such as cell migration, proliferation, survival, andangiogenesis. Currently, the contribution of altered STK35 expression in human diseases remainsunexplored. In initial studies, we observed that human cardiac biopsies from diabetic patientsshowed a significant decrease in STK35 expression as compared to non-diabetic control hearts.Intriguingly, in a STZ-induced mouse model of diabetes,
i.v
. injection of rAAV9-STK35 to expressconstitutive STK35 in heart in FVB/N male mice promoted neovascularization and lowered cardiacfibrosis, leading to improved cardiac function of diabetic heart. Our
in vitro
studies observed highglucose decreased STK35 expression in mouse cardiac endothelial cells (MCEC), whereasSTK35 overexpression increased MCEC migration and vascular tube formation, and upregulatedMCEC to expression of multiple pro-angiogenic proteins. Taken together, our results demonstratethat cardiac-targeted STK35 gene therapy exerts a marked beneficial action by attenuating bothcardiac remodeling and cardiac function in a mouse model of diabetes mellitus. Mechanistically,the beneficial effect may be attributed, at least partially, to enhanced neovascularization in heart.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Di Ren
- Univ of South Florida, Tampa, FL
| | - Li L Ji
- Univ of South Florida, Tampa, FL
| | - Raj Kishore
- TEMPLE UNIVERSITY SCHOOL OF MED, Philadelphia, PA
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19
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Huang S, Ren D, Wu X, Li M, Yu X, Nie X, Wang Y, Wang Y. Glycyrrhetinic Acid and TAT Peptide Modified Dual-functional Liposomes for Treatment of Hepatocellular Cancer. Curr Top Med Chem 2021; 20:2493-2505. [PMID: 32703132 DOI: 10.2174/1568026620666200722110244] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2020] [Revised: 02/15/2020] [Accepted: 03/10/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Surgery remains the front-line therapeutic strategy to treat early hepatocellular carcinoma (HCC). However, the 5-year recurrence rates of HCC patients are high. 10- Hydroxycamptothecin (10-HCPT) is a known anti-HCC agent but its poor solubility and bioavailability have limited its clinical use. OBJECTIVE In this study, we developed a novel nanoliposome encapsulated 10-hydroxycamptothecin modified with glycyrrhetinic acid (GA) and TAT peptide (GA/TAT-HCPT-LP) for the treatment of HCC. Dual modified GA and TAT can enhance tumor targeting and tumor penetration. METHODS The GA/TAT-HCPT-LP NPs were synthesized using the thin-film dispersion method. GA/TAT-HCPT-LP were characterized for particle size, zeta potential and morphology. Drug release from the GA/TAT-HCPT-LP liposomes was measured by dialysis. Cell-uptake was assessed by microscopy and flow cytometry. Cell proliferation, migration and apoptosis were measured to evaluate in vitro antitumor activity of GA/TAT-HCPT-LP via CCK-8 assays, Transwell assays, and flow cytometry, respectively. The in vivo distribution of GA/TAT-HCPT-LP was evaluated in HCC animal models. Tumor- bearing mouse models were used to assess the in vivo therapeutic efficacy of GA/TAT-HCPT-LP. RESULTS The mean particle size and mean zeta potential of GA/TAT-HCPT-LP were 135.55 ± 2.76 nm and -4.57 ± 0.23 mV, respectively. Transmission electron micrographs (TEM) showed that the GA/TAT-HCPT-LP had a near spherical shape and a double-membrane structure. GA/TAT-HCPT-LP led to slow and continuous drug release, and could bind to HepG2 cells more readily than other groups. Compared to control groups, treatment with GA/TAT-HCPT-LP had a significantly large effect on inhibiting cell proliferation, tumor cell migration and cell apoptosis. In vivo assays showed that GA/TATHCPT- LP selectively accumulated in tumor tissue with obvious antitumor efficacy. CONCLUSION In conclusion, the synthesized GA/TAT-HCPT-LP could effectively target tumor cells and enhance cell penetration, highlighting its potential for hepatocellular cancer therapy.
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Affiliation(s)
- Sixi Huang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006 Guangzhou, China
| | - Di Ren
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006 Guangzhou, China
| | - Xinrong Wu
- General Hospital of Southern Theater Command, PLA, 510006 Guangzhou, China
| | - Ming Li
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, 510006 Guangzhou, China
| | - Xuesong Yu
- School of Biosciences and Biopharmaceutics, Guangdong Pharmaceutical University, 510006 Guangzhou, China
| | - Xiaoling Nie
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006 Guangzhou, China
| | - Ying Wang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, 510006 Guangzhou, China
| | - Yan Wang
- School of Traditional Chinese Medicine, Guangdong Pharmaceutical University, 510006 Guangzhou, China
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20
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Zhang J, He Z, Fedorova J, Logan C, Bates L, Davitt K, Le V, Murphy J, Li M, Wang M, Lakatta EG, Ren D, Li J. Alterations in mitochondrial dynamics with age-related Sirtuin1/Sirtuin3 deficiency impair cardiomyocyte contractility. Aging Cell 2021; 20:e13419. [PMID: 34216536 PMCID: PMC8282250 DOI: 10.1111/acel.13419] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 03/08/2021] [Accepted: 05/24/2021] [Indexed: 12/19/2022] Open
Abstract
Sirtuin1 (SIRT1) and Sirtuin3 (SIRT3) protects cardiac function against ischemia/reperfusion (I/R) injury. Mitochondria are critical in response to myocardial I/R injury as disturbance of mitochondrial dynamics contributes to cardiac dysfunction. It is hypothesized that SIRT1 and SIRT3 are critical components to maintaining mitochondria homeostasis especially mitochondrial dynamics to exert cardioprotective actions under I/R stress. The results demonstrated that deficiency of SIRT1 and SIRT3 in aged (24–26 months) mice hearts led to the exacerbated cardiac dysfunction in terms of cardiac systolic dysfunction, cardiomyocytes contractile defection, and abnormal cardiomyocyte calcium flux during I/R stress. Moreover, the deletion of SIRT1 or SIRT3 in young (4–6 months) mice hearts impair cardiomyocyte contractility and shows aging‐like cardiac dysfunction upon I/R stress, indicating the crucial role of SIRT1 and SIRT3 in protecting myocardial contractility from I/R injury. The biochemical and seahorse analysis showed that the deficiency of SIRT1/SIRT3 leads to the inactivation of AMPK and alterations in mitochondrial oxidative phosphorylation (OXPHOS) that causes impaired mitochondrial respiration in response to I/R stress. Furthermore, the remodeling of the mitochondria network goes together with hypoxic stress, and mitochondria undergo the processes of fusion with the increasing elongated branches during hypoxia. The transmission electron microscope data showed that cardiac SIRT1/SIRT3 deficiency in aging alters mitochondrial morphology characterized by the impairment of mitochondria fusion under I/R stress. Thus, the age‐related deficiency of SIRT1/SIRT3 in the heart affects mitochondrial dynamics and respiration function that resulting in the impaired contractile function of cardiomyocytes in response to I/R.
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Affiliation(s)
- Jingwen Zhang
- College of Life Sciences Shandong Normal University Jinan China
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Zhibin He
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Julia Fedorova
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Cole Logan
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Lauryn Bates
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Kayla Davitt
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Van Le
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Jiayuan Murphy
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Melissa Li
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Mingyi Wang
- Laboratory of Cardiovascular Science Intramural Research Program National Institute on Aging National Institutes of Health Baltimore MD USA
| | - Edward G. Lakatta
- Laboratory of Cardiovascular Science Intramural Research Program National Institute on Aging National Institutes of Health Baltimore MD USA
| | - Di Ren
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
| | - Ji Li
- Department of Surgery Morsani College of Medicine University of South Florida Tampa FL USA
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21
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Zhang B, Liu W, Ren D, Li F, Wang Y, Huo D, Zhu S, Chen J, Song Q, Xu S. 62MO Comparison of lobectomy and sublobar resection for stage IA elderly NSCLC patients (≥70 years): A population-based propensity score matching study. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01904-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Zou ZY, Ren D, Chen RL, Yu BJ, Liu Y, Huang JJ, Yang ZJ, Zhou ZP, Feng YW, Wu M. Persistent lymphopenia after diagnosis of COVID-19 predicts acute respiratory distress syndrome: A retrospective cohort study. EUR J INFLAMM 2021; 19:205873922110368. [DOI: 10.1177/20587392211036825] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Background Lymphopenia is a marker of immunosuppression after severe coronavirus disease-2019 (COVID-19) which is characterized by acute respiratory distress syndrome (ARDS). This study aimed to evaluate the relationships between persistent lymphopenia and ARDS. Methods A retrospective cohort study of 125 patients with COVID-19 admitted to government-designated treatment center between 14 January 2020, and 20 March 2020 was conducted. We recorded all complete blood cell counts during the day 0th, 3rd, and 7th following the diagnosis of COVID-19. Patients were grouped based on the depression of the lymphocyte cell count, their return, or their failure to normal. The primary outcome was the occurrence of ARDS, and secondary outcomes included developing vital organ dysfunction and hospital lengths of stay. Results 17.6% (22/125) patients developed ARDS. The lymphocyte counts with ARDS and non-ARDS were 0.94 × 109/L, 1.20 × 109/L at admission, respectively ( p = 0.02). On the 3rd and 7th day, the median of lymphocyte count in ARDS was significantly lower than that of non-ARDS. Multivariable logistic regression, which was adjusting for potentially confounding factors (including age, comorbidities, and APACHE II score), showed that persistent lymphopenia within the 7th day was independently associated with ARDS (OR, 3.94 [95% CI, 1.26–12.33, p = 0.018). Further, patients with persistent lymphopenia had longer hospital lengths of stay ( p < 0.001). Conclusion The results showed persistent lymphopenia predicted ARDS after COVID-19. Further studies are needed to investigate whether immunostimulation of lymphocytes within 1 week can reduce ARDS occurrence in patients with COVID-19.
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Affiliation(s)
- Zhi-ye Zou
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
| | - Di Ren
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
- Expert Panel of Shenzhen 2019-nCoV Pneumonia, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Rong-ling Chen
- Expert Panel of Shenzhen 2019-nCoV Pneumonia, Shenzhen Second People’s Hospital, Shenzhen, China
- Department of Critical Care Medicine, Longgang Central Hospital of Shenzhen, Shenzhen, China
| | - Bao-jun Yu
- Expert Panel of Shenzhen 2019-nCoV Pneumonia, Shenzhen Second People’s Hospital, Shenzhen, China
- Department of Critical Care Medicine, Bao’an People’s Hospital of Shenzhen, Shenzhen, China
| | - Yan Liu
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
| | - Jia-jia Huang
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
- Shantou University Medical College, Shantou, China
| | - Zhen-jia Yang
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
- Shantou University Medical College, Shantou, China
| | - Zhi-peng Zhou
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
| | - Yong-wen Feng
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
- Expert Panel of Shenzhen 2019-nCoV Pneumonia, Shenzhen Second People’s Hospital, Shenzhen, China
| | - Ming Wu
- Department of Critical Care Medicine and Hospital Infection Prevention and Control, The Second People’s Hospital of Shenzhen and First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, China
- Shantou University Medical College, Shantou, China
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23
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Yao RQ, Ren C, Ren D, Li JX, Li Y, Liu XY, Huang L, Liu Y, Peng M, Feng YW, Yao YM. Development of septic shock and prognostic assessment in critically ill patients with coronavirus disease outside Wuhan, China. World J Emerg Med 2021; 12:293-298. [PMID: 34512826 PMCID: PMC8390351 DOI: 10.5847/wjem.j.1920-8642.2021.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 04/16/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The study aims to illustrate the clinical characteristics and development of septic shock in intensive care unit (ICU) patients confirmed with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, and to perform a comprehensive analysis of the association between septic shock and clinical outcomes in critically ill patients with coronavirus disease (COVID-19). METHODS Patients confirmed with SARS-CoV-2 infection, who were admitted to the ICU of the Third People's Hospital of Shenzhen from January 1 to February 7, 2020, were enrolled. Clinical characteristics and outcomes were compared between patients with and without septic shock. RESULTS In this study, 35 critically ill patients with COVID-19 were included. Among them, the median age was 64 years (interquartile range [IQR] 59-67 years), and 10 (28.4%) patients were female. The median ICU length of stay was 16 days (IQR 8-23 days). Three (8.6%) patients died during hospitalization. Nine (25.7%) patients developed septic shock in the ICU, and these patients had a significantly higher incidence of organ dysfunction and a worse prognosis than patients without septic shock. CONCLUSIONS Septic shock is associated with a poor outcome in critically ill COVID-19 patients and is one of the hallmarks of the severity of patients receiving ICU care. A dysregulated immune response, uncontrolled inflammation, and coagulation disorders are strongly associated with the development and progression of COVID-19-related septic shock.
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Affiliation(s)
- Ren-qi Yao
- Department of Critical Care Medicine, the Second People’s Hospital of Shenzhen, Shenzhen 518035, China
- Trauma Research Center, the Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, Beijing 100048, China
| | - Chao Ren
- Department of Critical Care Medicine, the Second People’s Hospital of Shenzhen, Shenzhen 518035, China
- Trauma Research Center, the Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, Beijing 100048, China
| | - Di Ren
- Department of Critical Care Medicine, the Second People’s Hospital of Shenzhen, Shenzhen 518035, China
- Department of Critical Care Medicine, the Third People’s Hospital of Shenzhen, Shenzhen 518020, China
| | - Jin-xiu Li
- Department of Critical Care Medicine, the Third People’s Hospital of Shenzhen, Shenzhen 518020, China
| | - Ying Li
- Department of Critical Care Medicine, the Second People’s Hospital of Shenzhen, Shenzhen 518035, China
| | - Xue-yan Liu
- Department of Critical Care Medicine, the People’s Hospital of Shenzhen, Shenzhen 518020, China
| | - Lei Huang
- Department of Critical Care Medicine, Peking University Shenzhen Hospital, Shenzhen 518035, China
| | - Yong Liu
- Department of Critical Care Medicine, Shenzhen Hospital of Southern Medical University, Shenzhen 518110, China
| | - Mian Peng
- Department of Critical Care Medicine, the Third Affiliated Hospital of Shenzhen University, Shenzhen 518001, China
| | - Yong-wen Feng
- Department of Critical Care Medicine, the Second People’s Hospital of Shenzhen, Shenzhen 518035, China
| | - Yong-ming Yao
- Department of Critical Care Medicine, the Second People’s Hospital of Shenzhen, Shenzhen 518035, China
- Trauma Research Center, the Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, Beijing 100048, China
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24
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Chen PF, Yu XX, Liu YP, Ren D, Shen M, Huang BS, Gao JL, Huang ZY, Wu M, Wang WY, Chen L, Shi X, Wang ZQ, Liu YX, Liu L, Liu Y. Virus load and virus shedding of SARS-CoV-2 and their impact on patient outcomes. World J Clin Cases 2020; 8:6252-6263. [PMID: 33392306 PMCID: PMC7760445 DOI: 10.12998/wjcc.v8.i24.6252] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 10/01/2020] [Accepted: 10/26/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Understanding a virus shedding patterns in body fluids/secretions is important to determine the samples to be used for diagnosis and to formulate infection control measures.
AIM To investigate the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) shedding patterns and its risk factors.
METHODS All laboratory-confirmed coronavirus disease 2019 patients with complete medical records admitted to the Shenzhen Third People’s Hospital from January 28, 2020 to March 8, 2020 were included. Among 145 patients (54.5% males; median age, 46.1 years), three (2.1%) died. The bronco-alveolar lavage fluid (BALF) had the highest virus load compared with the other samples. The viral load peaked at admission (3.3 × 108 copies) and sharply decreased 10 d after admission.
RESULTS The viral load was associated with prolonged intensive care unit (ICU) duration. Patients in the ICU had significantly longer shedding time compared to those in the wards (P < 0.0001). Age > 60 years [hazard ratio (HR) = 0.6; 95% confidence interval (CI): 0.4-0.9] was an independent risk factor for SARS-CoV-2 shedding, while chloroquine (HR = 22.8; 95%CI: 2.3-224.6) was a protective factor.
CONCLUSION BALF had the highest SARS-CoV-2 load. Elderly patients had higher virus loads, which was associated with a prolonged ICU stay. Chloroquine was associated with shorter shedding duration and increased the chance of viral negativity.
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Affiliation(s)
- Pei-Fen Chen
- Department of Respiratory Diseases, Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
- Department of Infectious Diseases, Linzhi People’s Hospital, Linzhi 860000, Tibet Autonomous Region, China
| | - Xia-Xia Yu
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, China
| | - Yi-Peng Liu
- Department of Respiratory Diseases, Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Di Ren
- Expert Panel of Shenzhen 2019-nCoV Pneumonia, The Second People’s Hospital of Shenzhen, Shenzhen 518035, Guangdong Province, China
| | - Min Shen
- Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Bing-Sheng Huang
- Medical AI Laboratory, School of Biomedical Engineering, Health Science Centre, Shenzhen University, Shenzhen 518060, Guangdong Province, China
| | - Jun-Ling Gao
- Buddhism and Science Research Laboratory, Centre of Buddhist Studies, The University of Hong Kong, Pokfulam, Hong Kong 999077, China
| | - Zheng-Yang Huang
- School of Biomedical Engineering, Health Science Center, Shenzhen University, Shenzhen 518060, Guangdong Province, China
| | - Ming Wu
- ICU, The Second People's Hospital of Shenzhen, Shenzhen 518035, Guangdong Province, China
| | - Wei-Yan Wang
- Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Li Chen
- Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Xia Shi
- Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Zhao-Qing Wang
- Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Ying-Xia Liu
- Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Lei Liu
- Shenzhen Key Laboratory of Pathogen and Immunity, National Clinical Research Center for Infectious Disease, State Key Discipline of Infectious Diseases, Shenzhen Third People’s Hospital, The Second Hospital Affiliated to Southern University of Science and Technology, Shenzhen 518114, Guangdong Province, China
| | - Yong Liu
- Expert Panel of Shenzhen 2019-nCoV Pneumonia, Shenzhen Hospital, Southern Medical University, Shenzhen 518000, Guangdong Province, China
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25
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Ren D, He Z, Fedorova J, Zhang J, Wood E, Zhang X, Kang DE, Li J. Sestrin2 maintains OXPHOS integrity to modulate cardiac substrate metabolism during ischemia and reperfusion. Redox Biol 2020; 38:101824. [PMID: 33316744 PMCID: PMC7734306 DOI: 10.1016/j.redox.2020.101824] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/25/2020] [Accepted: 11/27/2020] [Indexed: 11/17/2022] Open
Abstract
Sestrin2 (Sesn2) is a stress-inducible protein that declines with aging in the heart. We reported that rescue Sesn2 levels in aged mouse hearts through gene therapy improves the resistance of aged hearts to ischemia and reperfusion (I/R) insults. We hypothesize that Sesn2 as a scaffold protein maintains mitochondrial integrity to protect heart from ischemic injury during I/R. Young C57BL/6 J (3–6 months), aged C57BL/6 J (24–26 months), and young Sesn2 KO (3–6 months, C57BL/6 J background) mice were subjected to in vivo regional ischemia and reperfusion. The left ventricle was collected for transcriptomics, proteomics and metabolomics analysis. The results demonstrated that Sesn2 deficiency leads to aging-like cardiac diastolic dysfunction and intolerance to ischemia reperfusion stress. Seahorse analysis demonstrated that Sesn2 deficiency in aged and young Sesn2 KO versus young hearts lead to impaired mitochondrial respiration rate with defects in Complex I and Complex II activity. The Sesn2 targeted proteomics analysis revealed that Sesn2 plays a critical role in maintaining mitochondrial functional integrity through modulating mitochondria biosynthesis and assembling of oxidative phosphorylation (OXPHOS) complexes. The RNA-Seq data showed that alterations in the expression of mitochondrial compositional and functional genes and substrate metabolism related genes in young Sesn2 KO and aged versus young hearts. Further immunofluorescence and immunoprecipitation analysis demonstrated that Sesn2 is translocated into mitochondria and interacts with OXPHOS components to maintain mitochondrial integrity in response to I/R stress. Biochemical analysis revealed that Sesn2 is associated with citrate cycle components to modulate pyruvate dehydrogenase and isocitrate dehydrogenase activities during I/R stress. Thus, Sesn2 serves as a scaffold protein interacting with OXPHOS components to maintain mitochondrial integrity under I/R stress. Age-related downregulation of cardiac Sesn2 fragilizes mitochondrial functional integrity in response to ischemic stress. Ischemia reperfusion stress triggers Sesn2 accumulation in mitochondria. Sesn2 interacts with OXPHOS complexes to modulate the adaptive substrate metabolism. Age-related Sesn2 maintains mitochondrial functional integrity under stress conditions.
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Affiliation(s)
- Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Zhibin He
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Julia Fedorova
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Jingwen Zhang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Elizabeth Wood
- Proteomics Core, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Xiang Zhang
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, 40202, USA
| | - David E Kang
- University of South Florida Health Byrd Alzheimer's Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, 33613, USA
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA.
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26
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Ren C, Yao RQ, Ren D, Li JX, Li Y, Liu XY, Huang L, Liu Y, Peng M, Yao Y, Feng YW, Yao YM. The Clinical Features and Prognostic Assessment of SARS-CoV-2 Infection-Induced Sepsis Among COVID-19 Patients in Shenzhen, China. Front Med (Lausanne) 2020; 7:570853. [PMID: 33178716 PMCID: PMC7593782 DOI: 10.3389/fmed.2020.570853] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 09/16/2020] [Indexed: 12/15/2022] Open
Abstract
Background: The outbreak of the novel coronavirus disease (COVID-19) that began in December 2019 has posed a great threat to human health and caused a significant loss of life. In Shenzhen, 465 patients were confirmed to have COVID-19 as of August 31, 2020. In the present study, we aimed to describe the clinical characteristics of COVID-19 patients in Shenzhen and identify risk factors for the development of viral sepsis. Methods: In this retrospective study, patients who were confirmed to have a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and were admitted to the Third People's Hospital of Shenzhen from January 11 to April 27, 2020 were included in the cohort. Clinical data were extracted and followed up to May 10, 2020, by using predesigned data collection forms. Results: A total of 422 hospitalized COVID-19 patients were enrolled in this study, including 97 (23%) patients with viral sepsis at hospital admission and 325 (77%) non-septic patients. Patients with sepsis were much older than those without sepsis (57 vs. 43 years, P < 0.001) and presented with more comorbidities. Septic patients showed multiple organ dysfunction and significant abnormalities in immune- and inflammation-related biomarkers, and had poorer outcomes when compared to those without sepsis. Increased levels of interleukin-6, blood urea nitrogen, and creatine kinase were associated with the development of SARS-CoV-2-induced sepsis, and an elevated production of interleukin-6 was found to be an independent risk factor for the progression to critical illness among septic COVID-19 patients. Conclusions: SARS-CoV-2 infection-induced sepsis is critically involved in the severity and prognosis of COVID-19 patients by characterizing both aberrant immune response and uncontrolled inflammation. The development of sepsis might contribute to multiple organ dysfunction and poor outcomes in COVID-19 patients during hospitalization.
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Affiliation(s)
- Chao Ren
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China.,Department of Critical Care Medicine, The Third People's Hospital of Shenzhen, Shenzhen, China.,Trauma Research Center, Fourth Medical Center and Medical Innovation Research Division of the Chinese PLA General Hospital, Beijing, China
| | - Ren-Qi Yao
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China.,Department of Critical Care Medicine, The Third People's Hospital of Shenzhen, Shenzhen, China.,Trauma Research Center, Fourth Medical Center and Medical Innovation Research Division of the Chinese PLA General Hospital, Beijing, China
| | - Di Ren
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China.,Department of Critical Care Medicine, The Third People's Hospital of Shenzhen, Shenzhen, China
| | - Jin-Xiu Li
- Department of Critical Care Medicine, The Third People's Hospital of Shenzhen, Shenzhen, China
| | - Ying Li
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China
| | - Xue-Yan Liu
- Department of Critical Care Medicine, The People's Hospital of Shenzhen, Shenzhen, China
| | - Lei Huang
- Department of Critical Care Medicine, Peking University Shenzhen Hospital, Shenzhen, China
| | - Yong Liu
- Department of Critical Care Medicine, Shenzhen Hospital of Southern Medical University, Shenzhen, China
| | - Mian Peng
- Department of Critical Care Medicine, The Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Yao Yao
- Center for Healthy Aging and Development Studies, National School of Development, Peking University, Beijing, China
| | - Yong-Wen Feng
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China
| | - Yong-Ming Yao
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, Shenzhen, China.,Trauma Research Center, Fourth Medical Center and Medical Innovation Research Division of the Chinese PLA General Hospital, Beijing, China
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Zhang J, Ren D, Fedorova J, He Z, Li J. SIRT1/SIRT3 Modulates Redox Homeostasis during Ischemia/Reperfusion in the Aging Heart. Antioxidants (Basel) 2020; 9:antiox9090858. [PMID: 32933202 PMCID: PMC7556005 DOI: 10.3390/antiox9090858] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 12/14/2022] Open
Abstract
Ischemia/reperfusion (I/R) injury is the central cause of global death in cardiovascular diseases, which is characterized by disorders such as angina, stroke, and peripheral vascular disease, finally causing severe debilitating diseases and death. The increased rates of morbidity and mortality caused by I/R are parallel with aging. Aging-associated cardiac physiological structural and functional deterioration were found to contribute to abnormal reactive oxygen species (ROS) production during I/R stress. Disturbed redox homeostasis could further trigger the related signaling pathways that lead to cardiac irreversible damages with mitochondria dysfunction and cell death. It is notable that sirtuin proteins are impaired in aged hearts and are critical to maintaining redox homeostasis via regulating substrate metabolism and inflammation and thus preserving cardiac function under stress. This review discussed the cellular and functional alterations upon I/R especially in aging hearts. We propose that mitochondria are the primary source of reactive oxygen species (ROS) that contribute to I/R injury in aged hearts. Then, we highlight the cardiomyocyte protection of the age-related proteins Sirtuin1 (SIRT1) and Sirtuin1 (SIRT3) in response to I/R injury, and we discuss their modulation of cardiac metabolism and the inflammatory reaction that is involved in ROS formation.
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Affiliation(s)
- Jingwen Zhang
- College of Life Sciences, Shandong Normal University, Jinan 250014, China;
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (D.R.); (J.F.); (Z.H.)
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (D.R.); (J.F.); (Z.H.)
| | - Julia Fedorova
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (D.R.); (J.F.); (Z.H.)
| | - Zhibin He
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (D.R.); (J.F.); (Z.H.)
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA; (D.R.); (J.F.); (Z.H.)
- Correspondence: ; Tel.: +1-813-974-4917
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28
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Peng M, Ren D, Liu YF, Meng X, Wu M, Chen RL, Yu BJ, Tao LC, Chen L, Lai ZQ. Two mechanically ventilated cases of COVID-19 successfully managed with a sequential ventilation weaning protocol: Two case reports. World J Clin Cases 2020; 8:3305-3313. [PMID: 32874986 PMCID: PMC7441264 DOI: 10.12998/wjcc.v8.i15.3305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/15/2020] [Accepted: 07/16/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Patients with critical coronavirus disease 2019 (COVID-19), characterized by respiratory failure requiring mechanical ventilation (MV), are at high risk of mortality. An effective and practical MV weaning protocol is needed for these fragile cases.
CASE SUMMARY Here, we present two critical COVID-19 patients who presented with fever, cough and fatigue. COVID-19 diagnosis was confirmed based on blood cell counts, chest computed tomography (CT) imaging, and nuclei acid test results. To address the patients’ respiratory failure, they first received noninvasive ventilation (NIV). When their condition did not improve after 2 h of NIV, each patient was advanced to MV [tidal volume (Vt), 6 mL/kg ideal body weight (IBW); 8-10 cmH2O of positive end-expiratory pressure; respiratory rate, 20 breaths/min; and 40%-80% FiO2] with prone positioning for 12 h/day for the first 5 d of MV. Extensive infection control measures were conducted to minimize morbidity, and pharmacotherapy consisting of an antiviral, immune-enhancer, and thrombosis prophylactic was administered in both cases. Upon resolution of lung changes evidenced by CT, the patients were sequentially weaned using a weaning screening test, spontaneous breathing test, and airbag leak test. After withdrawal of MV, the patients were transitioned through NIV and high-flow nasal cannula oxygen support. Both patients recovered well.
CONCLUSION A MV protocol attentive to intubation/extubation timing, prone positioning early in MV, infection control, and sequential withdrawal of respiratory support, may be an effective regimen for patients with critical COVID-19.
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Affiliation(s)
- Mian Peng
- Department of Intensive Care Unit, The Third Affiliated Hospital of Shenzhen University, Shenzhen 518001, Guangdong Province, China
| | - Di Ren
- Department of Intensive Care Unit, The Second People’s Hospital of Shenzhen, Shenzhen 518035, Guangdong Province, China
| | - Yong-Feng Liu
- Department of Intensive Care Unit, Shenzhen Longgang Central Hospital, Shenzhen 518116, Guangdong Province, China
| | - Xi Meng
- Department of Intensive Care Unit, The Third People’s Hospital of Shenzhen, Shenzhen 518112, Guangdong Province, China
| | - Ming Wu
- Department of Intensive Care Unit, The Second People’s Hospital of Shenzhen, Shenzhen 518035, Guangdong Province, China
| | - Rong-Lin Chen
- Department of Intensive Care Unit, Shenzhen Longgang Central Hospital, Shenzhen 518116, Guangdong Province, China
| | - Bao-Jun Yu
- Department of Intensive Care Unit, Shenzhen Baoan District People’s Hospital, Shenzhen 518101, Guangdong Province, China
| | - Long-Cheng Tao
- Department of Intensive Care Unit, The Third Affiliated Hospital of Shenzhen University, Shenzhen 518001, Guangdong Province, China
| | - Li Chen
- Department of Intensive Care Unit, The Third Affiliated Hospital of Shenzhen University, Shenzhen 518001, Guangdong Province, China
| | - Zeng-Qiao Lai
- Department of Intensive Care Unit, The Third Affiliated Hospital of Shenzhen University, Shenzhen 518001, Guangdong Province, China
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29
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Peng M, Liu X, Li J, Ren D, Liu Y, Meng X, Lyu Y, Chen R, Yu B, Zhong W. Successful management of seven cases of critical COVID-19 with early noninvasive-invasive sequential ventilation algorithm and bundle pharmacotherapy. Front Med 2020; 14:674-680. [PMID: 32761492 PMCID: PMC7406958 DOI: 10.1007/s11684-020-0796-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 04/17/2020] [Indexed: 12/22/2022]
Abstract
We report the clinical and laboratory findings and successful management of seven patients with critical coronavirus disease 2019 (COVID-19) requiring mechanical ventilation (MV). The patients were diagnosed based on epidemiological history, clinical manifestations, and nucleic acid testing. Upon diagnosis with COVID-19 of critical severity, the patients were admitted to the intensive care unit, where they received early noninvasive–invasive sequential ventilation, early prone positioning, and bundle pharmacotherapy regimen, which consists of antiviral, anti-inflammation, immune-enhancing, and complication-prophylaxis medicines. The patients presented fever (n = 7, 100%), dry cough (n = 3, 42.9%), weakness (n = 2, 28.6%), chest tightness (n = 1, 14.3%), and/or muscle pain (n = 1, 14.3%). All patients had normal or lower than normal white blood cell count/lymphocyte count, and chest computed tomography scans showed bilateral patchy shadows or ground glass opacity in the lungs. Nucleic acid testing confirmed COVID-19 in all seven patients. The median MV duration and intensive care unit stay were 9.9 days (interquartile range, 6.5–14.6 days; range, 5–17 days) and 12.9 days (interquartile range, 9.7–17.6 days; range, 7–19 days), respectively. All seven patients were extubated, weaned off MV, transferred to the common ward, and discharged as of the writing of this report. Thus, we concluded that good outcomes for patients with critical COVID-19 can be achieved with early noninvasive–invasive sequential ventilation and bundle pharmacotherapy.
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Affiliation(s)
- Mian Peng
- Department of Intensive Care Unit, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, China
| | - Xueyan Liu
- Department of Intensive Care Unit, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, The Second Affiliated Hospital of Jinan University, Shenzhen, 518020, China.
| | - Jinxiu Li
- Department of Intensive Care Unit, The Third People's Hospital of Shenzhen, Shenzhen, 518112, China
| | - Di Ren
- Department of Intensive Care Unit, The Second People's Hospital of Shenzhen, Shenzhen, 518035, China
| | - Yongfeng Liu
- Department of Intensive Care Unit, Shenzhen Longgang Central Hospital, Shenzhen, 518116, China
| | - Xi Meng
- Department of Intensive Care Unit, The Third People's Hospital of Shenzhen, Shenzhen, 518112, China
| | - Yansi Lyu
- Department of Dermatology, Shenzhen University General Hospital, Shenzhen, 518055, China
| | - Ronglin Chen
- Department of Intensive Care Unit, Shenzhen Longgang Central Hospital, Shenzhen, 518116, China
| | - Baojun Yu
- Department of Intensive Care Unit, Shenzhen Baoan District People's Hospital, Shenzhen, 518101, China
| | - Weixiong Zhong
- Department of Intensive Care Unit, The Third Affiliated Hospital of Shenzhen University, Shenzhen, 518001, China
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30
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Ren C, Yao RQ, Ren D, Li Y, Feng YW, Yao YM. Comparison of clinical laboratory tests between bacterial sepsis and SARS-CoV-2-associated viral sepsis. Mil Med Res 2020; 7:36. [PMID: 32753048 PMCID: PMC7399032 DOI: 10.1186/s40779-020-00267-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 07/29/2020] [Indexed: 11/10/2022] Open
Abstract
Sepsis is a life-threatening condition that is characterized by multiple organ dysfunction due to abnormal host response to various pathogens, like bacteria, fungi and virus. The differences between viral and bacterial sepsis are indeed of great significance to deepen the understanding of the pathogenesis of sepsis, especially under pandemics of SARS-CoV-2 infection.
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Affiliation(s)
- Chao Ren
- Department of Critical Care Medicine, the Second People's Hospital of Shenzhen, Shenzhen, 518035, Guangdong, China.,Department of Critical Care Medicine, the Third People's Hospital of Shenzhen, Shenzhen, 518020, Guangdong, China.,Trauma Research Center, the Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, Beijing, 100048, China
| | - Ren-Qi Yao
- Department of Critical Care Medicine, the Second People's Hospital of Shenzhen, Shenzhen, 518035, Guangdong, China.,Department of Critical Care Medicine, the Third People's Hospital of Shenzhen, Shenzhen, 518020, Guangdong, China.,Trauma Research Center, the Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, Beijing, 100048, China
| | - Di Ren
- Department of Critical Care Medicine, the Second People's Hospital of Shenzhen, Shenzhen, 518035, Guangdong, China.,Department of Critical Care Medicine, the Third People's Hospital of Shenzhen, Shenzhen, 518020, Guangdong, China
| | - Ying Li
- Department of Critical Care Medicine, the Second People's Hospital of Shenzhen, Shenzhen, 518035, Guangdong, China
| | - Yong-Wen Feng
- Department of Critical Care Medicine, the Second People's Hospital of Shenzhen, Shenzhen, 518035, Guangdong, China.
| | - Yong-Ming Yao
- Department of Critical Care Medicine, the Second People's Hospital of Shenzhen, Shenzhen, 518035, Guangdong, China. .,Trauma Research Center, the Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, Beijing, 100048, China.
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31
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Quan N, Li X, Zhang J, Han Y, Sun W, Ren D, Tong Q, Li J. Substrate metabolism regulated by Sestrin2-mTORC1 alleviates pressure overload-induced cardiac hypertrophy in aged heart. Redox Biol 2020; 36:101637. [PMID: 32863202 PMCID: PMC7363709 DOI: 10.1016/j.redox.2020.101637] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 06/29/2020] [Accepted: 07/03/2020] [Indexed: 01/12/2023] Open
Abstract
Sestrin2 (Sesn2) is a stress sensor for the mammalian target of rapamycin complex 1 (mTORC1) pathway. Aging impairs cardiac mTORC1 activation, thereby sensitizing the heart to hypertrophy. C57BL/6 J young wild-type (young WT; 4-6 months), aged WT (24-26 months), and young Sestrin2 knockout mice (Y-Sesn2 KO; 4-6 months) underwent transverse aortic constriction (TAC) for pressure overload. Cardiac expression of Sesn2 decreased with age. At 4 weeks after TAC, aged WT and Y-Sesn2 KO exhibited larger hearts and impaired cardiac function, compared with young WT mice. Augmented phosphorylation of mTOR and downstream effectors; damaged mitochondria and elevated redox markers, as well as and impaired glucose and fatty acid oxidation were observed in aged WT and Y-Sesn2 KO hearts. A pressure overload-induced interaction between Sesn2 and GTPase-activating protein activity toward Rags 2 (GATOR2), which positively regulates mTORC1, was impaired in aged WT hearts. Adeno-associated virus 9-Sesn2 treatment rescued Sesn2 expression, attenuated mTORC1 activation, and increased pressure overload tolerance in aged WT and Y-Sesn2 KO hearts. These results indicated that cardiac Sesn2 acts as a pressure overload sensor for mTORC1. Furthermore, Sesn2 deficiency may cause increased sensitivity to hypertrophy in elderly individuals.
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Affiliation(s)
- Nanhu Quan
- Department of Cardiovascular Center, The First Hospital of Jilin University, Changchun, 130021, China,Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA,Corresponding author. Department of Cardiovascular Center, The First Hospital of Jilin University, Changchun, 130021, China. Tel.: +86 13844803504.
| | - Xuan Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Jingwen Zhang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Ying Han
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Weiju Sun
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Qian Tong
- Department of Cardiovascular Center, The First Hospital of Jilin University, Changchun, 130021, China,Corresponding author. Tel.: +86 15804300981.
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
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32
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Luan YY, Liu Y, Liu XY, Yu BJ, Chen RL, Peng M, Ren D, Li HL, Huang L, Liu Y, Li JX, Feng YW, Wu M. Coronavirus disease 2019 (COVID-19) associated coagulopathy and its impact on outcomes in Shenzhen, China: A retrospective cohort study. Thromb Res 2020; 195:62-68. [PMID: 32659462 PMCID: PMC7347306 DOI: 10.1016/j.thromres.2020.07.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/01/2020] [Accepted: 07/06/2020] [Indexed: 01/08/2023]
Abstract
Background: Early detection of suspected critical patients infected with coronavirus disease 2019 (COVID-19) is very important for the treatment of patients. This study aimed to investigate the role of COVID-19 associated coagulopathy (CAC) to preview and triage. Methods and Results: A cohort study was designed from government designated COVID-19 treatment center. CAC was defined as International Society on Thrombosis and Haemostasis (ISTH) score ≥2. Data from 117 patients COVID-19 were reviewed on admission. The primary and secondary outcomes were admission to Intensive Care Unit (ICU), the use of mechanical ventilation, vital organ dysfunction, discharges of days 14, 21 and 28 from admission and hospital mortality. Among them, admission to ICU was increased progressively from 16.1% in patients with non-CAC to 42.6% in patients with CAC (P < 0.01). Likely, invasive ventilation and noninvasive ventilation were increased from 1.8%, 21.4% in patients with non-CAC to 21.3%, 52.5% in patients with CAC, respectively (P < 0.01). The incidences of acute hepatic injury and acute respiratory distress syndrome in non-CAC and CAC were 28.6% vs. 62.3%, 8.9% vs. 27.9%, respectively (P < 0.01). The discharges of days 14, 21 and 28 from admission were more in non-CAC than those of CAC (P < 0.05). Multiple logistic regression results showed that ISTH score ≥2 was obviously associated with the admission to ICU (OR 4.07, 95% CI 1.47–11.25 P = 0.007) and the use of mechanical ventilation (OR 5.54, 95% CI 2.01–15.28 P = 0.001) in patients with COVID-19. Conclusion: All results show ISTH score ≥2 is an important indicator to preview and triage for COVID-19 patients. COVID-19 patients with ISTH score ≥ 2 on admission need more admission to ICU and mechanical ventilation. The incidence is high in acute hepatic injury and acute respiratory distress syndrome in COVID-19 patients with ISTH score ≥ 2. The discharges of 14 days, 21 days and 28 days from admission were less in COVID-19 patients with ISTH score ≥ 2. ISTH score ≥ 2 is an important indicator to preview and triage for COVID-19 patients on early admission.
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Affiliation(s)
- Ying-Yi Luan
- Department of Critical Care Medicine and Infection Prevention and Control, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, People's Republic of China
| | - Yan Liu
- Department of Critical Care Medicine and Infection Prevention and Control, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, People's Republic of China
| | - Xue-Yan Liu
- Department of Critical Care Medicine, Shenzhen People's Hospital, Shenzhen, People's Republic of China
| | - Bao-Jun Yu
- Department of Critical Care Medicine, Bao'an People's Hospital, Shenzhen, People's Republic of China
| | - Rong-Ling Chen
- Department of Critical Care Medicine, Central People's Hospital of Longgang, Shenzhen, People's Republic of China
| | - Mian Peng
- Department of Critical Care Medicine, the Third Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, People's Republic of China
| | - Di Ren
- Department of Critical Care Medicine and Infection Prevention and Control, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, People's Republic of China
| | - Hao-Li Li
- Department of Critical Care Medicine and Infection Prevention and Control, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, People's Republic of China
| | - Lei Huang
- Department of Critical Care Medicine, Peking University Shenzhen Hospital, Shenzhen, People's Republic of China
| | - Yong Liu
- Department of Critical Care Medicine, Shenzhen Hospital of Southern Medical University, Shenzhen, People's Republic of China
| | - Jin-Xiu Li
- Department of Critical Care Medicine, The Third People's Hospital of Shenzhen, Shenzhen, People's Republic of China
| | - Yong-Wen Feng
- Department of Critical Care Medicine and Infection Prevention and Control, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, People's Republic of China.
| | - Ming Wu
- Department of Critical Care Medicine and Infection Prevention and Control, The Second People's Hospital of Shenzhen & First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, People's Republic of China.
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33
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Han Y, Sun W, Ren D, Zhang J, He Z, Fedorova J, Sun X, Han F, Li J. SIRT1 agonism modulates cardiac NLRP3 inflammasome through pyruvate dehydrogenase during ischemia and reperfusion. Redox Biol 2020; 34:101538. [PMID: 32325423 PMCID: PMC7176991 DOI: 10.1016/j.redox.2020.101538] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/30/2020] [Accepted: 04/07/2020] [Indexed: 02/07/2023] Open
Abstract
Nucleotide-binding oligomerization domain-Like Receptor with a Pyrin domain 3 (NLRP3) inflammasome was emerged as a marker of metabolic dysregulation. We revealed that age-related Sirtuin-1 (SIRT1) modulates cardiac metabolism that medicated inflammatory response during ischemia and reperfusion (I/R) stress. We hypothesize that SIRT1 attenuates NLRP3 inflammasome-dependent inflammation and pyroptosis during myocardial I/R through metabolic modulation. C57BL/6J wild type (WT) mice, inducible cardiomyocyte specific SIRT1 knockout (icSIRT1 KO) and inducible cardiomyocyte specific PDH E1α knockout (icPDH E1α KO) mice were subjected to ligation and release of left anterior descending coronary artery for in vivo regional I/R models. The echocardiography measurement demonstrated that SIRT1 agonist SRT1720 (30 μg/g) improved cardiac systolic function during 45 min of ischemia and 6 h of reperfusion in C57BL/6J WT mice. The biochemical analysis showed that I/R triggered activation of cardiac pyruvate dehydrogenase (PDH), while SIRT1 agonist SRT1720 inhibited I/R-induced PDH activity and reduced production of reactive oxygen species (ROS) during myocardial I/R. Moreover, SRT1720 regulates PDH-related glucose oxidative metabolism to reduce NLRP3 inflammasome activation and pyroptosis in an Akt signaling dependent manner during I/R. Furthermore, an impaired Akt signaling was observed in icSIRT1 KO versus SIRT1fox/flox mice under I/R stress. Intriguingly, we observed lower levels of ROS generation, decreased NLRP3 levels and less pyroptosis occurred in the icPDH E1α KO versus PDH E1αflox/flox hearts during I/R. Taken together, the results indicate that SIRT1 agonism can inhibit activation of NLRP3 inflammasome via Akt-dependent metabolic regulation during ischemic insults by I/R.
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Affiliation(s)
- Ying Han
- Cardiovascular Department, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, 150001, China; Department of Surgery, University of South Florida, Tampa, USA
| | - Weiju Sun
- Department of Surgery, University of South Florida, Tampa, USA; Cardiovascular Department, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Di Ren
- Department of Surgery, University of South Florida, Tampa, USA
| | - Jingwen Zhang
- Department of Surgery, University of South Florida, Tampa, USA
| | - Zhibin He
- Department of Surgery, University of South Florida, Tampa, USA
| | - Julia Fedorova
- Department of Surgery, University of South Florida, Tampa, USA
| | - Xiaodong Sun
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, USA
| | - Fang Han
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, USA
| | - Ji Li
- Department of Surgery, University of South Florida, Tampa, USA.
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Sun X, Han F, Lu Q, Li X, Ren D, Zhang J, Han Y, Xiang YK, Li J. Empagliflozin Ameliorates Obesity-Related Cardiac Dysfunction by Regulating Sestrin2-Mediated AMPK-mTOR Signaling and Redox Homeostasis in High-Fat Diet-Induced Obese Mice. Diabetes 2020; 69:1292-1305. [PMID: 32234722 DOI: 10.2337/db19-0991] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 03/20/2020] [Indexed: 02/07/2023]
Abstract
Sodium-glucose cotransporter 2 inhibitors (SGLT2i) have favorable cardiovascular outcomes in patients with diabetes. However, whether SGLT2i can improve obesity-related cardiac dysfunction is unknown. Sestrin2 is a novel stress-inducible protein that regulates AMPK-mammalian target of rapamycin (mTOR) and suppresses oxidative damage. The aim of this study was to determine whether empagliflozin (EMPA) improves obesity-related cardiac dysfunction via regulating Sestrin2-mediated pathways in diet-induced obesity. C57BL/6J mice and Sestrin2 knockout mice were fed a high-fat diet (HFD) for 12 weeks and then treated with or without EMPA (10 mg/kg) for 8 weeks. Treating HFD-fed C57BL/6J mice with EMPA reduced body weight and whole-body fat and improved metabolic disorders. Furthermore, EMPA improved myocardial hypertrophy/fibrosis and cardiac function and reduced cardiac fat accumulation and mitochondrial injury. Additionally, EMPA significantly augmented Sestrin2 levels and increased AMPK and endothelial nitric oxide synthase phosphorylation, but inhibited Akt and mTOR phosphorylation. These beneficial effects were partially attenuated in HFD-fed Sestrin2 knockout mice. Intriguingly, EMPA treatment enhanced the Nrf2/HO-1-mediated oxidative stress response, suggesting antioxidant and anti-inflammatory activity. Thus, EMPA improved obesity-related cardiac dysfunction via regulating Sestrin2-mediated AMPK-mTOR signaling and maintaining redox homeostasis. These findings provide a novel mechanism for the cardiovascular protection of SGLT2i in obesity.
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Affiliation(s)
- Xiaodong Sun
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Fang Han
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
- Department of Pathology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Qingguo Lu
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
- Department of Endocrinology and Metabolism, West China Hospital of Sichuan University, Chengdu, China
| | - Xuan Li
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
| | - Di Ren
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
- Department of Surgery, University of South Florida, Tampa, FL
| | - Jingwen Zhang
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
- Department of Surgery, University of South Florida, Tampa, FL
| | - Ying Han
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
- Department of Surgery, University of South Florida, Tampa, FL
| | - Yang K Xiang
- Department of Pharmacology, University of California at Davis, Davis, CA
| | - Ji Li
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS
- Department of Surgery, University of South Florida, Tampa, FL
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35
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Ren D, Ren C, Yao RQ, Feng YW, Yao YM. Clinical features and development of sepsis in patients infected with SARS-CoV-2: a retrospective analysis of 150 cases outside Wuhan, China. Intensive Care Med 2020; 46:1630-1633. [PMID: 32415313 PMCID: PMC7225399 DOI: 10.1007/s00134-020-06084-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/02/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Di Ren
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, 3002 Sungang West Road, Futian District, Shenzhen, 518035, People's Republic of China.,Department of Critical Care Medicine, The Third People's Hospital of Shenzhen, Shenzhen, 518020, People's Republic of China
| | - Chao Ren
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, 51 Fucheng Road, Haidian District, Beijing, 100048, People's Republic of China
| | - Ren-Qi Yao
- Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, 51 Fucheng Road, Haidian District, Beijing, 100048, People's Republic of China
| | - Yong-Wen Feng
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, 3002 Sungang West Road, Futian District, Shenzhen, 518035, People's Republic of China.
| | - Yong-Ming Yao
- Department of Critical Care Medicine, The Second People's Hospital of Shenzhen, 3002 Sungang West Road, Futian District, Shenzhen, 518035, People's Republic of China. .,Trauma Research Center, Fourth Medical Center and Medical Innovation Research Department of the Chinese PLA General Hospital, 51 Fucheng Road, Haidian District, Beijing, 100048, People's Republic of China.
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Peng M, Ren D, Liu XY, Li JX, Chen RL, Yu BJ, Liu YF, Meng X, Lyu YS. COVID-19 managed with early non-invasive ventilation and a bundle pharmacotherapy: A case report. World J Clin Cases 2020; 8:1705-1712. [PMID: 32420305 PMCID: PMC7211518 DOI: 10.12998/wjcc.v8.i9.1705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/09/2020] [Accepted: 04/16/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The coronavirus disease 2019 (COVID-19) pandemic has become an immense public health burden, first in China and subsequently worldwide. Developing effective control measures for COVID-19, especially measures that can halt the worsening of severe cases to a critical status is of urgent importance.
CASE SUMMARY A 52-year-old woman presented with a high fever (38.8 °C), chills, dizziness, and weakness. Epidemiologically, she had not been to Wuhan where COVID-19 emerged and did not have a family history of a disease cluster. A blood test yielded a white blood cell count of 4.41 × 109/L (60.6 ± 2.67% neutrophils and 30.4 ± 1.34% lymphocytes). Chest imaging revealed bilateral ground-glass lung changes. Based on a positive nasopharyngeal swab nucleic acid test result and clinical characteristics, the patient was diagnosed with COVID-19. Following treatment with early non-invasive ventilation and a bundle pharmacotherapy, she recovered with a good outcome.
CONCLUSION Early non-invasive ventilation with a bundle pharmacotherapy may be an effective treatment regimen for the broader population of patients with COVID-19.
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Affiliation(s)
- Mian Peng
- Department of Intensive Care Unit, the Third Affiliated Hospital of Shenzhen University, Shenzhen 518001, Guangdong Province, China
| | - Di Ren
- Department of Intensive Care Unit, the Second People’s Hospital of Shenzhen, Shenzhen 518001, Guangdong Province, China
| | - Xue-Yan Liu
- Department of Intensive Care Unit, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, the Second Affiliated Hospital of Jinan University, Shenzhen 518020, Guangdong Province, China
| | - Jin-Xiu Li
- Department of Intensive Care Unit, the Third People’s Hospital of Shenzhen, Shenzhen 518001, Guangdong Province, China
| | - Rong-Lin Chen
- Department of Intensive Care Unit, Shenzhen Longgang Central Hospital, Shenzhen 518001, Guangdong Province, China
| | - Bao-Jun Yu
- Department of Intensive Care Unit, Shenzhen Baoan District People’s Hospital, Shenzhen 518001, Guangdong Province, China
| | - Yong-Feng Liu
- Department of Intensive Care Unit, Shenzhen Longgang Central Hospital, Shenzhen 518001, Guangdong Province, China
| | - Xi Meng
- Department of Intensive Care Unit, the Third People’s Hospital of Shenzhen, Shenzhen 518001, Guangdong Province, China
| | - Yan-Si Lyu
- Department of Dermatology, Shenzhen University General Hospital, Shenzhen 518067, Guangdong Province, China
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Ren D, Quan N, Fedorova J, Zhang J, He Z, Li J. Sestrin2 modulates cardiac inflammatory response through maintaining redox homeostasis during ischemia and reperfusion. Redox Biol 2020; 34:101556. [PMID: 32447260 PMCID: PMC7248240 DOI: 10.1016/j.redox.2020.101556] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/13/2020] [Accepted: 04/23/2020] [Indexed: 12/26/2022] Open
Abstract
Ischemia heart disease is the leading cause of death world-widely and has increased prevalence and exacerbated myocardial infarction with aging. Sestrin2, a stress-inducible protein, declines with aging in the heart and the rescue of Sestrin2 in the aged mouse heart improves the resistance to ischemic insults caused by ischemia and reperfusion. Here, through a combination of transcriptomic, physiological, histological, and biochemical strategies, we found that Sestrin2 deficiency shows an aged-like phenotype in the heart with excessive oxidative stress, provoked immune response, and defected myocardium structure under physiological condition. While challenged with ischemia and reperfusion stress, the transcriptomic alterations in Sestrin2 knockout mouse heart resembled aged wild type mouse heart. It suggests that Sestrin2 is an age-related gene in the heart against ischemia reperfusion stress. Sestrin2 plays a crucial role in modulating inflammatory response through maintaining the intracellular redox homeostasis in the heart under ischemia reperfusion stress condition. Together, the results indicate that Sestrin2 is a potential target for treatment of age-related ischemic heart disease. Sestrin2 regulates cardiac redox homeostasis under ischemic stress. Alterations in substrate metabolism with aging cause impaired inflammatory response. Sestrin2 is a potential target for treatment of ischemic heart disease. Sestrin2 modulates cardiac inflammatory response during ischemia and reperfusion.
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Affiliation(s)
- Di Ren
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Nanhu Quan
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Julia Fedorova
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Jingwen Zhang
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Zhibin He
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA
| | - Ji Li
- Department of Surgery, Morsani College of Medicine, University of South Florida, Tampa, FL, 33612, USA.
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Nie X, Liu Y, Li M, Yu X, Yuan W, Huang S, Ren D, Wang Y, Wang Y. SP94 Peptide-Functionalized PEG-PLGA Nanoparticle Loading with Cryptotanshinone for Targeting Therapy of Hepatocellular Carcinoma. AAPS PharmSciTech 2020; 21:124. [PMID: 32342227 DOI: 10.1208/s12249-020-01655-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 03/07/2020] [Indexed: 12/28/2022] Open
Abstract
To achieve improved drug delivery efficiency to hepatocellular carcinoma (HCC), biodegradable poly (ethylene glycol)-poly (lactic-co-glycolic acid) (PEG-PLGA) nanoparticles (NP), surface-modified with SP94 peptide, were designed for the efficient delivery of cryptotanshinone to the tumor for the treatment of HCC. Cryptotanshinone NP and SP94-NP were prepared by using nanoprecipitation. The physicochemical and pharmaceutical properties of the NP and SP94-NP were characterized, and the release kinetics suggested that both NP and SP94-NP provided continuous, slow release of cryptotanshinone for 48 h. The in vitro cellular experiment demonstrated that SP94-NP significantly enhanced the cellular uptake of cryptotanshinone and induced high cytotoxicity and cellular apoptosis of hepatocellular carcinoma (HepG2) cells. The in vivo detecting results of targeting effect using the Cy5.5 probe evidenced that SP94-NP showed an accumulation in tumor more efficiently than that of unconjugated ones. Meanwhile, SP94-NP exhibited the smallest tumor size than other groups and showed no toxicity to body. The results of this study provide a promising nanoplatform for the targeting of HCC.
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Drizik E, Corbett S, Zheng Y, Vermeulen R, Dai Y, Hu W, Ren D, Duan H, Niu Y, Xu J, Fu W, Meliefste K, Zhou B, Zhang X, Yang J, Bassig B, Liu H, Ye M, Liu G, Jia X, Meng T, Bin P, Zhang J, Silverman D, Spira A, Rothman N, Lenburg ME, Lan Q. Transcriptomic changes in the nasal epithelium associated with diesel engine exhaust exposure. Environ Int 2020; 137:105506. [PMID: 32044442 PMCID: PMC8725607 DOI: 10.1016/j.envint.2020.105506] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 12/19/2019] [Accepted: 01/17/2020] [Indexed: 05/13/2023]
Abstract
BACKGROUND Diesel engine exhaust (DEE) exposure causes lung cancer, but the molecular mechanisms by which this occurs are not well understood. OBJECTIVES To assess transcriptomic alterations in nasal epithelium of DEE-exposed factory workers to better understand the cellular and molecular effects of DEE. METHODS Nasal epithelial brushings were obtained from 41 diesel engine factory workers exposed to relatively high levels of DEE (17.2-105.4 μg/m3), and 38 unexposed workers from factories without DEE exposure. mRNA was profiled for gene expression using Affymetrix microarrays. Linear modeling was used to identify differentially expressed genes associated with DEE exposure and interaction effects with current smoking status. Pathway enrichment among differentially expressed genes was assessed using EnrichR. Gene Set Enrichment Analysis (GSEA) was used to compare gene expression patterns between datasets. RESULTS 225 genes had expression associated with DEE exposure after adjusting for smoking status (FDR q < 0.25) and were enriched for genes in pathways related to oxidative stress response, cell cycle pathways such as MAPK/ERK, protein modification, and transmembrane transport. Genes up-regulated in DEE-exposed individuals were enriched among the genes most up-regulated by cigarette smoking in a previously reported bronchial airway smoking dataset. We also found that the DEE signature was enriched among the genes most altered in two previous studies of the effects of acute DEE on PBMC gene expression. An exposure-response relationship was demonstrated between air levels of elemental carbon and the first principal component of the DEE signature. CONCLUSIONS A gene expression signature was identified for workers occupationally exposed to DEE that was altered in an exposure-dependent manner and had some overlap with the effects of smoking and the effects of acute DEE exposure. This is the first study of gene expression in nasal epithelial cells of workers heavily exposed to DEE and provides new insights into the molecular alterations that occur with DEE exposure.
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Affiliation(s)
- E Drizik
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - S Corbett
- Bioinformatics Program, Boston University, Boston, MA, USA
| | - Y Zheng
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China.
| | - R Vermeulen
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - Y Dai
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - W Hu
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - D Ren
- Chaoyang Center for Disease Control and Prevention, Chaoyang, China
| | - H Duan
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Y Niu
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - J Xu
- Hong Kong University, Hong Kong, China
| | - W Fu
- Chaoyang Center for Disease Control and Prevention, Chaoyang, China
| | - K Meliefste
- Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
| | - B Zhou
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiaohui Zhang
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - J Yang
- Chaoyang Center for Disease Control and Prevention, Chaoyang, China
| | - Bryan Bassig
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - Hanqiao Liu
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - M Ye
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Gang Liu
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - X Jia
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - T Meng
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - P Bin
- Key Laboratory of Chemical Safety and Health, National Institute of Occupational, Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, China
| | - J Zhang
- Nicholas School of the Environment and Duke Global Health Institute, Duke University, Durham, NC, USA; Global Health Research Center, Duke Kunshan University, Kunshan City, Jiangsu Province, China
| | - D Silverman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - A Spira
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA; Bioinformatics Program, Boston University, Boston, MA, USA; The Lung Cancer Initiative at Johnson & Johnson, Cambridge, MA, USA
| | - N Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
| | - M E Lenburg
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA; Bioinformatics Program, Boston University, Boston, MA, USA.
| | - Q Lan
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, MD, USA
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Lu Q, Liu J, Li X, Sun X, Zhang J, Ren D, Tong N, Li J. Empagliflozin attenuates ischemia and reperfusion injury through LKB1/AMPK signaling pathway. Mol Cell Endocrinol 2020; 501:110642. [PMID: 31759100 DOI: 10.1016/j.mce.2019.110642] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 11/06/2019] [Accepted: 11/07/2019] [Indexed: 02/07/2023]
Abstract
The beneficial effects of empagliflozin (EMPA) on cardiac functions during ischemia and reperfusion were characterized. The contractile functions of isolated cardiomyocytes from adult C57BL/6J mice were determined with IonOptix SoftEdgeMyoCam system. The mitochondrial superoxide production was measured by MitoSOX fluorescent probe. The ex vivo isolated heart perfusion system was used to determine the pharmacological effects of EMPA on heart's contractile functions under both physiological and pathological conditions. The in vivo regional myocardial ischemia and reperfusion by ligation of left artery coronary artery descending (LAD) was used to measure the myocardial infarction caused by ischemia and reperfusion with or without EMPA treatment. The results demonstrated that EMPA treatment significantly improves cardiomyocyte contractility under hypoxia conditions and augments the post-ischemic recovery in the ex vivo heart perfusion system. Furthermore, the in vivo myocardial infarction measurement shows that EMPA treatment significantly reduce myocardial infarct size caused by ischemia and reperfusion. The biochemical analysis demonstrated that EMPA can trigger cardiac AMPK signaling pathway and attenuate mitochondrial superoxide production under hypoxia and reoxygenation conditions. In conclusion, EMPA can trigger AMPK signaling pathways and modulate myocardial contractility and reduce myocardial infarct size caused by ischemia and reperfusion independent of hypoglycemic effect. The results for the first time demonstrate that the activation of AMPK by EMPA could one reason about EMPA's beneficial effects on heart disease.
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Affiliation(s)
- Qingguo Lu
- Department of Endocrinology and Metabolism, West China Hospital of Sichuan University, 610041, Chengdu, China; Department of Physiology and Biophysics, University of Mississippi Medical Center, 39216, Jackson, MS, USA
| | - Jia Liu
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 39216, Jackson, MS, USA; Department of Surgery, Morsani College of Medicine, University of South Florida, 33612, Tampa, FL, USA
| | - Xuan Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 39216, Jackson, MS, USA
| | - Xiaodong Sun
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 39216, Jackson, MS, USA
| | - Jingwen Zhang
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 39216, Jackson, MS, USA; Department of Surgery, Morsani College of Medicine, University of South Florida, 33612, Tampa, FL, USA
| | - Di Ren
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 39216, Jackson, MS, USA; Department of Surgery, Morsani College of Medicine, University of South Florida, 33612, Tampa, FL, USA
| | - Nanwei Tong
- Department of Endocrinology and Metabolism, West China Hospital of Sichuan University, 610041, Chengdu, China
| | - Ji Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, 39216, Jackson, MS, USA; Department of Surgery, Morsani College of Medicine, University of South Florida, 33612, Tampa, FL, USA.
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Liu J, Li X, Lu Q, Ren D, Sun X, Rousselle T, Li J, Leng J. AMPK: a balancer of the renin-angiotensin system. Biosci Rep 2019; 39:BSR20181994. [PMID: 31413168 PMCID: PMC6722492 DOI: 10.1042/bsr20181994] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 07/24/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023] Open
Abstract
The renin-angiotensin system (RAS) is undisputedly well-studied as one of the oldest and most critical regulators for arterial blood pressure, fluid volume, as well as renal function. In recent studies, RAS has also been implicated in the development of obesity, diabetes, hyperlipidemia, and other diseases, and also involved in the regulation of several signaling pathways such as proliferation, apoptosis and autophagy, and insulin resistance. AMP-activated protein kinase (AMPK), an essential cellular energy sensor, has also been discovered to be involved in these diseases and cellular pathways. This would imply a connection between the RAS and AMPK. Therefore, this review serves to draw attention to the cross-talk between RAS and AMPK, then summering the most recent literature which highlights AMPK as a point of balance between physiological and pathological functions of the RAS.
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Affiliation(s)
- Jia Liu
- Department of Geriatrics, The First Hospital of Jilin University, Changchun 130021, China
- Department of Surgery, University of South Florida, Tampa, FL 33612, U.S.A
| | - Xuan Li
- Mississippi Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Qingguo Lu
- Mississippi Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Di Ren
- Department of Surgery, University of South Florida, Tampa, FL 33612, U.S.A
| | - Xiaodong Sun
- Mississippi Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Thomas Rousselle
- Mississippi Center for Heart Research, Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Ji Li
- Department of Surgery, University of South Florida, Tampa, FL 33612, U.S.A
| | - Jiyan Leng
- Department of Geriatrics, The First Hospital of Jilin University, Changchun 130021, China
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Hu H, Li X, Ren D, Tan Y, Chen J, Yang L, Chen R, Li J, Zhu P. The cardioprotective effects of carvedilol on ischemia and reperfusion injury by AMPK signaling pathway. Biomed Pharmacother 2019; 117:109106. [PMID: 31200253 DOI: 10.1016/j.biopha.2019.109106] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/06/2019] [Accepted: 06/06/2019] [Indexed: 02/07/2023] Open
Abstract
Carvedilol, a third generation beta blocker, is in clinical use for heart failure patients. However, besides adrenergic receptor blockade, the pharmacological effects of carvedilol on cardiomyocytes remain unknown. AMP-activated protein kinase (AMPK) is an emerging target recognized for heart failure treatment. The mechanical properties and intracellular Ca2+ properties were measured in isolated cardiomyocyte contractile functions in response to ischemic stress. Treatment of cardiomyocytes with carvedilol augmented phosphorylation of AMPK and downstream acetyl CoA carboxylase (ACC), and ameliorated hypoxia-induced impairment in maximal velocity of shortening (+dL/dt) and relengthening (-dL/dt), and the impaired peak height and peak shortening (PS) amplitude caused by hypoxia. Carvedilol treatment improved calcium homeostasis with rescuing the peak Ca2+ signal, the maximum rate of Ca2+ change during contraction (+dF/dt) and the maximum rate of Ca2+ change during relaxation (-dF/dt) under hypoxia conditions. In mouse hearts perfused ex vivo with carvedilol, the function of post-ischemia left ventricle was improved and an augmentation in myocardial glucose uptake and glucose oxidation, and inhibition of fatty acid oxidation during ischemia and reperfusion. The protective effect of carvedilol was further supported in an in vivo regional ischemia model by ligation of left anterior descending coronary artery (LAD), mice treated with carvedilol followed by LAD occlusion and reperfusion showed significant size reduction in infarcted myocardium and improved cardiac functions. Therefore, Carvedilol as a clinical drug can modulate cardiac AMPK signaling pathway to reduce ischemic insults by ischemia and reperfusion.
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Affiliation(s)
- Haiyan Hu
- Department of Cardiac surgery, Affiliated of South China Hospital, Southern Medical University (Guangdong Provincial People's Hospital), Southern Medical University/The Second School of Clinical Medicine, Guangzhou 510515, China; Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS, United States; Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Xuan Li
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS, United States
| | - Di Ren
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS, United States
| | - Yi Tan
- Pediatric Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, United states; Wendy L. Novak Diabetes Care Center, Louisville, KY, United States
| | - Jimei Chen
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Lei Yang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ruiping Chen
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ji Li
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, Jackson, MS, United States
| | - Ping Zhu
- Department of Cardiac surgery, Affiliated of South China Hospital, Southern Medical University (Guangdong Provincial People's Hospital), Southern Medical University/The Second School of Clinical Medicine, Guangzhou 510515, China; Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China.
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Belmadani A, Jayaraj N, Ren D, George D, Paller A, Miller R, Menichella D. 666 Role for epidermal keratinocytes in small fiber degeneration in diabetic peripheral neuropathy. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Zhang C, Wang P, Yang J, Ren D, Lu Z, Zhao H, Lu F. Oxidative crosslinking of water-extractable wheat arabinoxylans by recombinant lipoxygenase and its effect on bread properties. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.12.077] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Lu Q, Li X, Liu J, Sun X, Rousselle T, Ren D, Tong N, Li J. AMPK is associated with the beneficial effects of antidiabetic agents on cardiovascular diseases. Biosci Rep 2019; 39:BSR20181995. [PMID: 30710062 PMCID: PMC6379227 DOI: 10.1042/bsr20181995] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/21/2019] [Accepted: 01/31/2019] [Indexed: 02/06/2023] Open
Abstract
Diabetics have higher morbidity and mortality in cardiovascular disease (CVD). A variety of antidiabetic agents are available for clinical choice. Cardiovascular (CV) safety assessment of these agents is crucial in addition to hypoglycemic effect before clinical prescription. Adenosine 5'-monophosphate-activated protein kinase (AMPK) is an important cell energy sensor, which plays an important role in regulating myocardial energy metabolism, reducing ischemia and ischemia/reperfusion (I/R) injury, improving heart failure (HF) and ventricular remodeling, ameliorating vascular endothelial dysfunction, antichronic inflammation, anti-apoptosis, and regulating autophagy. In this review, we summarized the effects of antidiabetic agents to CVD according to basic and clinical research evidence and put emphasis on whether these agents can play roles in CV system through AMPK-dependent signaling pathways. Metformin has displayed definite CV benefits related to AMPK. Sodium-glucose cotransporter 2 inhibitors also demonstrate sufficient clinical evidence for CV protection, but the mechanisms need further exploration. Glucagon-likepeptide1 analogs, dipeptidyl peptidase-4 inhibitors, α-glucosidase inhibitors and thiazolidinediones also show some AMPK-dependent CV benefits. Sulfonylureas and meglitinides may be unfavorable to CV system. AMPK is becoming a promising target for the treatment of diabetes, metabolic syndrome and CVD. But there are still some questions to be answered.
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Affiliation(s)
- Qingguo Lu
- Department of Endocrinology and Metabolism, West China Hospital of Sichuan University, 610041 Chengdu, China
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 39216 Jackson, MS, U.S.A
| | - Xuan Li
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 39216 Jackson, MS, U.S.A
| | - Jia Liu
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 39216 Jackson, MS, U.S.A
- Department of Geriatrics, The First Hospital of Jilin University, 130021 Changchun, China
| | - Xiaodong Sun
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 39216 Jackson, MS, U.S.A
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, 261000 Weifang, China
| | - Thomas Rousselle
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 39216 Jackson, MS, U.S.A
| | - Di Ren
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 39216 Jackson, MS, U.S.A
| | - Nanwei Tong
- Department of Endocrinology and Metabolism, West China Hospital of Sichuan University, 610041 Chengdu, China
| | - Ji Li
- Department of Physiology and Biophysics, Mississippi Center for Heart Research, University of Mississippi Medical Center, 39216 Jackson, MS, U.S.A.
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Nugent BD, Ren D, Bender C, Rosenzweig M. Abstract P1-17-10: The impact of age and adjuvant chemotherapy modifications on disease-free and overall survival among African American women with breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-17-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: During chemotherapy for breast cancer, African American women receive less relative dose intensity with more dose reductions and early chemotherapy cessation compared to Caucasian women. Other research has found that older breast cancer patients are most at risk for treatment modifications; however, it is unclear if this remains true for African American patients. Furthermore, the clinical implications of treatment modifications and delays on survival is uncertain, particularly in African American patients.
Purpose: The purpose of this study was to investigate whether age (diagnosis <55 vs. diagnosis ≥55) was a moderator for the association between treatment modifications (dose held, dose delayed, and early cessation) and overall survival (OS) and disease-free survival (DFS) in African American women with breast cancer.
Methods: A retrospective cohort study of early stage African American breast cancer patients treated with adjuvant chemotherapy was employed. Dose held, dose delayed and early cessation were examined as dichotomous variables: any adjustment to the initially prescribed treatment plan was considered a modification. Medical record data extraction was utilized to gather this information. The sample was divided into two groups: those diagnosed <55 years of age and those diagnosed ≥55 years of age. A Cox's proportional hazards regression model was used to examine the interaction between age group and treatment modifications for OS and DFS, while controlling for stage and ER and HER2 status.
Results: In the study of 115 participants, 58 (50.4%) were diagnosed before the age of 55, and 57 (49.6%) were diagnosed age 55 or older. Across the entire sample, 43 (37.4%) patients experienced a treatment modification. There were no significant differences in the proportions of treatment modifications between the two age groups. We found no interaction between age group and treatment modifications for OS. However, there was a significant interaction between age group and held dose for DFS (p=0.045). Specifically, those diagnosed at 55 years of age and older, who had doses of chemotherapy held, experienced worse DFS compared to those who did not (hazard ratio (HR)=3.390, 95% CI (1.013,11.34)). In contrast, there was no difference in DFS between those who did and did not have doses held in patients diagnosed below 55 years of age (HR=0.563, 95%CI (0.159, 1.986)).
Conclusions: African American women receiving adjuvant chemotherapy for treatment of early stage breast cancer have high levels of treatment modifications across all age groups. However, held doses of chemotherapy in older African American patients were associated with worse DFS. Further research is needed to elucidate the clinical implications of adjuvant chemotherapy treatment modifications, particularly in African American patients, and the subgroups of patients who are at greatest risk.
Citation Format: Nugent BD, Ren D, Bender C, Rosenzweig M. The impact of age and adjuvant chemotherapy modifications on disease-free and overall survival among African American women with breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-17-10.
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Affiliation(s)
- BD Nugent
- University of Pittsburgh, Pittsburgh, PA
| | - D Ren
- University of Pittsburgh, Pittsburgh, PA
| | - C Bender
- University of Pittsburgh, Pittsburgh, PA
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Li X, Liu J, Lu Q, Ren D, Sun X, Rousselle T, Tan Y, Li J. AMPK: a therapeutic target of heart failure-not only metabolism regulation. Biosci Rep 2019; 39:BSR20181767. [PMID: 30514824 PMCID: PMC6328861 DOI: 10.1042/bsr20181767] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 11/19/2018] [Accepted: 11/29/2018] [Indexed: 02/07/2023] Open
Abstract
Heart failure (HF) is a serious disease with high mortality. The incidence of this disease has continued to increase over the past decade. All cardiovascular diseases causing dysfunction of various physiological processes can result in HF. AMP-activated protein kinase (AMPK), an energy sensor, has pleiotropic cardioprotective effects and plays a critical role in the progression of HF. In this review, we highlight that AMPK can not only improve the energy supply in the failing heart by promoting ATP production, but can also regulate several important physiological processes to restore heart function. In addition, we discuss some aspects of some potential clinical drugs which have effects on AMPK activation and may have value in treating HF. More studies, especially clinical trials, should be done to evaluate manipulation of AMPK activation as a potential means of treating HF.
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Affiliation(s)
- Xuan Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Jia Liu
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
- Department of Geriatrics, The First Hospital of Jilin University, Changchun 130021, China
| | - Qingguo Lu
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
- Department of Endocrinology and Metabolism, West China Hospital of Sichuan University, 37 Guoxue Lane, Chengdu 610041, China
| | - Di Ren
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Xiaodong Sun
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
- Department of Endocrinology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - Thomas Rousselle
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A
| | - Yi Tan
- Pediatic Research Institute, Department of Pediatrics, University of Louisville, Louisville, KY, U.S.A
- Wendy L. Novak Diabetes Care Center, University of Louisville, Louisville, KY, U.S.A
| | - Ji Li
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS 39216, U.S.A.
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Pan Y, Jing J, Qiao L, Liu J, An L, Li B, Ren D, Liu W. MiRNA-seq reveals that miR-124-3p inhibits adipogenic differentiation of the stromal vascular fraction in sheep via targeting C/EBPα. Domest Anim Endocrinol 2018; 65:17-23. [PMID: 29860204 DOI: 10.1016/j.domaniend.2018.05.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 04/24/2018] [Accepted: 05/02/2018] [Indexed: 01/17/2023]
Abstract
MicroRNAs (miRNAs) are small noncoding 20-25 nt RNA molecules that regulate gene expression by posttranscriptional repression of messenger RNA. There have been few investigations on the profiles and functions of miRNAs in ovine subcutaneous fat; their roles in the metabolism and deposition of subcutaneous fat also remain unclear. In this study, small RNA libraries were constructed for 2 important Chinese local sheep breeds, Small-tailed Han Sheep, and Shanxi Meat Sheep Dam Line, and used for high-throughput sequencing. Differentially expressed miRNAs were identified, revealing the effect of miR-124-3p on adipogenic differentiation by targeting C/EBPα. Our results provide both a comprehensive understanding of miRNA expression patterns in sheep subcutaneous fat and an insight into the specific roles of miRNAs in adipogenesis.
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Affiliation(s)
- Y Pan
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - J Jing
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - L Qiao
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - J Liu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - L An
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - B Li
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - D Ren
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China
| | - W Liu
- College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu, Shanxi, China.
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Ayrton ST, Chen X, Bain RM, Pulliam CJ, Achmatowicz M, Flick TG, Ren D, Cooks RG. Gas Phase Ion Chemistry to Determine Isoaspartate in a Peptide Backbone. J Am Soc Mass Spectrom 2018; 29:1339-1344. [PMID: 29546595 DOI: 10.1007/s13361-018-1923-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 06/08/2023]
Abstract
Proof of concept evidence is presented for a new method for the determination of isoaspartate, an important post-translational modification. Chemical derivatization is performed using common reagents for the modification of carboxylic acids and shown to yield suitable diagnostic information with regard to isomerization at the aspartate residue. The diagnostic gas phase chemistry is probed by collision-induced dissociation mass spectrometry, on the timescale of the MS experiment and semi-quantitative calibration of the percentage of isoaspartate in a peptide sample is demonstrated. Graphical Abstract ᅟ.
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Affiliation(s)
- S T Ayrton
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - X Chen
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - R M Bain
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - C J Pulliam
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA
| | - M Achmatowicz
- Department of Analytical Research & Development, Amgen Inc., 1 Amgen Center Drive, Thousand Oaks, CA, 91320, USA
| | - T G Flick
- Department of Analytical Research & Development, Amgen Inc., 1 Amgen Center Drive, Thousand Oaks, CA, 91320, USA
| | - D Ren
- Department of Analytical Research & Development, Amgen Inc., 1 Amgen Center Drive, Thousand Oaks, CA, 91320, USA
| | - R G Cooks
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, 47907, USA.
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Li Y, Feng YW, Yu Y, Ren D, Ye Y, Li MQ. A Bioinformatics Study on the Application of High-Throughput Sequencing Technology to Pathogen Detection in Patients with Sepsis. j med imaging hlth inform 2018. [DOI: 10.1166/jmihi.2018.2281] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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