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Spahia N, Rroji M, Barbullushi M, Spasovski G. Subclinical Hypothyroidism, Kidney, and Heart from Normal to Uremic Milieu. Metab Syndr Relat Disord 2023; 21:415-425. [PMID: 37433213 DOI: 10.1089/met.2023.0057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/13/2023] Open
Abstract
Thyroid hormone (TH) imbalances, particularly subclinical hypothyroidism (SCHT), are associated with chronic kidney disease (CKD) and end-stage kidney disease (ESKD). SCHT is more prevalent in CKD and ESKD patients than in the general population, and this condition increases the risk of cardiovascular disease (CVD) morbidity and mortality. The risk of CVD is higher in CKD and ESKD patients compared with the general population. Traditional and nontraditional risk factors, including TH abnormalities, contribute to the high CVD burden in CKD and ESKD patients. The review discusses the link between CKD and hypothyroidism, with a focus on SCHT, and the mechanisms that lead to CVD burden.
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Affiliation(s)
- Nereida Spahia
- Department of Nephrology, University Hospital Center "Mother Teresa," Tirana, Albania
| | - Merita Rroji
- Department of Nephrology, University Hospital Center "Mother Teresa," Tirana, Albania
| | - Myftar Barbullushi
- Department of Nephrology, University Hospital Center "Mother Teresa," Tirana, Albania
| | - Goce Spasovski
- Department of Nephrology, Medical Faculty, University Sts. Cyril and Methodius, Skopje, North Macedonia
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Hwang SY, Liu H, Lee SS. Dysregulated Calcium Handling in Cirrhotic Cardiomyopathy. Biomedicines 2023; 11:1895. [PMID: 37509534 PMCID: PMC10377313 DOI: 10.3390/biomedicines11071895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/18/2023] [Accepted: 06/27/2023] [Indexed: 07/30/2023] Open
Abstract
Cirrhotic cardiomyopathy is a syndrome of blunted cardiac systolic and diastolic function in patients with cirrhosis. However, the mechanisms remain incompletely known. Since contractility and relaxation depend on cardiomyocyte calcium transients, any factors that impact cardiac contractile and relaxation functions act eventually through calcium transients. In addition, calcium transients play an important role in cardiac arrhythmias. The present review summarizes the calcium handling system and its role in cardiac function in cirrhotic cardiomyopathy and its mechanisms. The calcium handling system includes calcium channels on the sarcolemmal plasma membrane of cardiomyocytes, the intracellular calcium-regulatory apparatus, and pertinent proteins in the cytosol. L-type calcium channels, the main calcium channel in the plasma membrane of cardiomyocytes, are decreased in the cirrhotic heart, and the calcium current is decreased during the action potential both at baseline and under stimulation of beta-adrenergic receptors, which reduces the signal to calcium-induced calcium release. The study of sarcomere length fluctuations and calcium transients demonstrated that calcium leakage exists in cirrhotic cardiomyocytes, which decreases the amount of calcium storage in the sarcoplasmic reticulum (SR). The decreased storage of calcium in the SR underlies the reduced calcium released from the SR, which results in decreased cardiac contractility. Based on studies of heart failure with non-cirrhotic cardiomyopathy, it is believed that the calcium leakage is due to the destabilization of interdomain interactions (dispersion) of ryanodine receptors (RyRs). A similar dispersion of RyRs may also play an important role in reduced contractility. Multiple defects in calcium handling thus contribute to the pathogenesis of cirrhotic cardiomyopathy.
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Affiliation(s)
- Sang Youn Hwang
- Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB T2N 4N1, Canada
- Department of Internal Medicine, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Republic of Korea
| | - Hongqun Liu
- Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB T2N 4N1, Canada
| | - Samuel S Lee
- Liver Unit, University of Calgary Cumming School of Medicine, Calgary, AB T2N 4N1, Canada
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Sun X, Cao J, Chen Z, Liu Y, VonCannon JL, Cheng HJ, Ferrario CM, Cheng CP. Increased CaMKII activation and contrast changes of cardiac β1-and β3-Adrenergic signaling pathways in a humanized angiotensinogen model of hypertension. Heliyon 2023; 9:e17851. [PMID: 37456012 PMCID: PMC10344767 DOI: 10.1016/j.heliyon.2023.e17851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 07/18/2023] Open
Abstract
Aims Upregulation of Ca2+/calmodulin-dependent protein kinase II (CaMKII) contributes to the pathogenesis of cardiovascular disease, including hypertension. Transgenic rats expressing the human angiotensinogen gene [TGR (hAGT)L1623] are a new novel humanized model of hypertension that associates with declines in cardiac contractile function and β-adrenergic receptor (AR) reserve. The molecular mechanisms are unclear. We tested the hypothesis that in TGR (hAGT)L1623 rats, left ventricular (LV) myocyte CaMKIIδ and β3-AR are upregulated, but β1-AR is down-regulated, which are important causes of cardiac dysfunction and β-AR desensitization. Main methods We compared LV myocyte CaMKIIδ, CaMKIIδ phosphorylation (at Thr287) (pCaMKIIδ), and β1-and β3-AR expressions and determined myocyte functional and [Ca2+]I transient ([Ca2+]iT) responses to β-AR stimulation with and without pretreatment of myocytes using an inhibitor of CaMKII, KN-93 (10-6 M, 30 min) in male Sprague Dawley (SD; N = 10) control and TGR (hAGT)L1623 (N = 10) adult rats. Key findings Hypertension in TGR (hAGT)L1623 rats was accompanied by significantly increased LV myocyte β3-AR protein levels and reduced β1-AR protein levels. CaMKIIδ phosphorylation (at Thr287), pCaMKIIδ was significantly increased by 35%. These changes were followed by significantly reduced basal cell contraction (dL/dtmax), relaxation (dR/dtmax), and [Ca2+]iT. Isoproterenol (10-8 M) produced significantly smaller increases in dL/dtmax, dR/dtmax, and [Ca2+]iT. Moreover, only in TGR (hAGT)L1623 rats, pretreatment of LV myocytes with KN-93 (10-6 M, 30 min) fully restored normal basal and isoproterenol-stimulated myocyte contraction, relaxation, and [Ca2+]iT. Significance LV myocyte CaMKIIδ overactivation with associated contrast changes in β3-AR and β1-AR may be the key molecular mechanism for the abnormal contractile phenotype and β-AR desensitization in this humanized model of hypertension.
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Affiliation(s)
- Xiaoqiang Sun
- Department of Cardiology, Tianjin First Central Hospital, Tianjin, China
- School of Medicine, Nankai University, Tianjin, China
- Department of Internal Medicine, Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Jing Cao
- Department of Critical Care Medicine, First Hospital of Shanxi Medical University, Taiyuan, China
- Department of Internal Medicine, Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Zhe Chen
- Department of Internal Medicine, Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
- Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yixi Liu
- Department of Internal Medicine, Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
- Department of Cardiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jessica L. VonCannon
- Department of Surgery, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Heng Jie Cheng
- Department of Internal Medicine, Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Carlos M. Ferrario
- Department of Surgery, Wake Forest University School of Medicine, Winston Salem, NC, USA
| | - Che Ping Cheng
- Department of Internal Medicine, Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA
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Calmodulin-dependent protein kinase II activation promotes kidney mesangial expansion in streptozotocin-induced diabetic mice. Heliyon 2022; 8:e11653. [DOI: 10.1016/j.heliyon.2022.e11653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/30/2022] [Accepted: 11/08/2022] [Indexed: 11/16/2022] Open
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Zhang X, Li T, Cheng HJ, Wang H, Ferrario CM, Groban L, Cheng CP. Chronic GPR30 agonist therapy causes restoration of normal cardiac functional performance in a male mouse model of progressive heart failure: Insights into cellular mechanisms. Life Sci 2021; 285:119955. [PMID: 34520767 DOI: 10.1016/j.lfs.2021.119955] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 08/21/2021] [Accepted: 09/08/2021] [Indexed: 01/22/2023]
Abstract
AIMS G protein-coupled estrogen receptor 30 (GPR30) activation by its agonist, G1, exhibits beneficial actions in female with heart failure (HF). Recent evidence indicates its cardiovascular benefits may also include male as well. However, whether and how GPR30 activation may limit HF progression and have a salutary role in males is unknown. We hypothesized that chronic G1 treatment improves LV and cardiomyocyte function, [Ca2+]i regulation and β-adrenergic reserve, thus limiting HF progression in male. MAIN METHODS We compared left ventricle (LV) and myocyte function, [Ca2+]i transient ([Ca2+]iT) and β-AR modulation in control male mice (12/group) and isoproterenol-induced HF (150 mg/kg s.c. for 2 days). Two weeks after isoproterenol injection, HF mice received placebo, or G1 (150 μg/kg/day s.c. mini-pump) for 2 weeks. KEY FINDINGS Isoproterenol-treated mice exhibited HF with preserved ejection fraction (HFpEF) at 2-weeks and progressed to HF with reduced EF (HFrEF) at 4-weeks, manifested by significantly increased LV time constant of relaxation (τ), decreased EF and mitral flow (dV/dtmax), which were accompanied by reduced myocyte contraction (dL/dtmax), relaxation (dR/dtmax) and [Ca2+]iT. Acute isoproterenol-superfusion caused significantly smaller increases in dL/dtmax, dR/dtmax and [Ca2+]iT. G1 treatment in HF increased basal and isoproterenol-stimulated increases in EF and LV contractility of EES. Importantly, G1 improved basal and isoproterenol-stimulated dL/dtmax, dR/dtmax and [Ca2+]iT to control levels and restored normal cardiac β-AR subtypes modulation. SIGNIFICANCE Chronic G1 treatment restores normal myocyte basal and β-AR-stimulated contraction, relaxation, and [Ca2+]iT, thereby reversing LV dysfunction and playing a rescue role in a male mouse model of HF.
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Affiliation(s)
- Xiaowei Zhang
- Department of Cardiology, The Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China; Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Tiankai Li
- Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America; Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Heng-Jie Cheng
- Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America.
| | - Hao Wang
- Department of Anesthesiology, Wake Forest School of Medicine, Winston-Salem, NC, United States of America.
| | - Carlos M Ferrario
- Department of Surgery, Wake Forest School of Medicine, Winston-Salem, NC, United States of America.
| | - Leanne Groban
- Department of Anesthesiology, Wake Forest School of Medicine, Winston-Salem, NC, United States of America.
| | - Che Ping Cheng
- Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, NC, United States of America.
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Liu Y, Shao Q, Cheng HJ, Li T, Zhang X, Callahan MF, Herrington D, Kitzman D, Zhao D, Cheng CP. Chronic Ca 2+/Calmodulin-Dependent Protein Kinase II Inhibition Rescues Advanced Heart Failure. J Pharmacol Exp Ther 2021; 377:316-325. [PMID: 33722881 PMCID: PMC8140392 DOI: 10.1124/jpet.120.000361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 03/11/2021] [Indexed: 11/22/2022] Open
Abstract
Ca2+/calmodulin-dependent protein kinase II (CaMKII) is upregulated in congestive heart failure (CHF), contributing to electrical, structural, and functional remodeling. CaMKII inhibition is known to improve CHF, but its direct cardiac effects in CHF remain unclear. We hypothesized that CaMKII inhibition improves cardiomyocyte function, [Ca2+]i regulation, and β-adrenergic reserve, thus improving advanced CHF. In a 16-week study, we compared plasma neurohormonal levels and left ventricular (LV)- and myocyte-functional and calcium transient ([Ca2+]iT) responses in male Sprague-Dawley rats (10/group) with CHF induced by isoproterenol (170 mg/kg sq for 2 days). In rats with CHF, we studied the effects of the CaMKII inhibitor KN-93 or its inactive analog KN-92 (n = 4) (70 µg/kg per day, mini-pump) for 4 weeks. Compared with controls, isoproterenol-treated rats had severe CHF with 5-fold-increased plasma norepinephrine and about 50% decreases in ejection fraction (EF) and LV contractility [slope of LV end-systolic pressure-LV end-systolic volume relation (EES)] but increased time constant of LV relaxation (τ). They also showed significantly reduced myocyte contraction [maximum rate of myocyte shortening (dL/dtmax)], relaxation (dL/dtmax), and [Ca2+]iT Isoproterenol superfusion caused significantly fewer increases in dL/dtmax and [Ca2+]iT KN-93 treatment prevented plasma norepinephrine elevation, with increased basal and acute isoproterenol-stimulated increases in EF and EES and decreased τ in CHF. KN-93 treatment preserved normal myocyte contraction, relaxation, [Ca2+]iT, and β-adrenergic reserve, whereas KN-92 treatment failed to improve LV and myocyte function, and plasma norepinephrine remained high in CHF. Thus, chronic CaMKII inhibition prevented CHF-induced activation of the sympathetic nervous system, restoring normal LV and cardiomyocyte basal and β-adrenergic-stimulated contraction, relaxation, and [Ca2+]iT, thereby playing a rescue role in advanced CHF. SIGNIFICANCE STATEMENT: We investigated the therapeutic efficacy of late initiation of chronic Ca2+/calmodulin-dependent protein kinase II (CaMKII) inhibition on progression of advanced congestive heart failure (CHF). Chronic CaMKII inhibition prevented CHF-induced activation of the sympathetic nervous system and restored normal intrinsic cardiomyocyte basal and β-adrenergic receptor-stimulated relaxation, contraction, and [Ca2+]i regulation, leading to reversal of CHF progression. These data provide new evidence that CaMKII inhibition is able and sufficient to rescue a failing heart, and thus cardiac CaMKII inhibition is a promising target for improving CHF treatment.
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Affiliation(s)
- Yixi Liu
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - Qun Shao
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - Heng-Jie Cheng
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - Tiankai Li
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - Xiaowei Zhang
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - Michael F Callahan
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - David Herrington
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - Dalane Kitzman
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - David Zhao
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
| | - Che-Ping Cheng
- Department of Cardiology, the First Affiliated Hospital of Kunming Medical University, Kunming, China (Y.L.); Department of Cardiology, Harbin Medical University Cancer Hospital, Harbin, China (Q.S.); Department of Internal Medicine, Cardiovascular Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina (Y.L., Q.S., H.-J.C., T.L., X.Z., M.F.C., D.H., D.K., D.Z., C.-P.C.); Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China (T.L.); and Department of Cardiology, the Second Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China (X.Z.)
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Mosqueira M, Konietzny R, Andresen C, Wang C, H A Fink R. Cardiomyocyte depolarization triggers NOS-dependent NO transient after calcium release, reducing the subsequent calcium transient. Basic Res Cardiol 2021; 116:18. [PMID: 33728868 PMCID: PMC7966140 DOI: 10.1007/s00395-021-00860-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 03/09/2021] [Indexed: 12/18/2022]
Abstract
Cardiac excitation-contraction coupling and metabolic and signaling activities are centrally modulated by nitric oxide (NO), which is produced by one of three NO synthases (NOSs). Despite the significant role of NO in cardiac Ca2+ homeostasis regulation under different pathophysiological conditions, such as Duchenne muscular dystrophy (DMD), no precise method describes the production, source or effect of NO through two NO signaling pathways: soluble guanylate cyclase-protein kinase G (NO-sGC-PKG) and S-nitrosylation (SNO). Using a novel strategy involving isolated murine cardiomyocytes loaded with a copper-based dye highly specific for NO, we observed a single transient NO production signal after each electrical stimulation event. The NO transient signal started 67.5 ms after the beginning of Rhod-2 Ca2+ transient signal and lasted for approximately 430 ms. Specific NOS isoform blockers or NO scavengers significantly inhibited the NO transient, suggesting that wild-type (WT) cardiomyocytes produce nNOS-dependent NO transients. Conversely, NO transient in mdx cardiomyocyte, a mouse model of DMD, was dependent on inducible NOS (iNOS) and endothelial (eNOS). In a consecutive stimulation protocol, the nNOS-dependent NO transient in WT cardiomyocytes significantly reduced the next Ca2+ transient via NO-sGC-PKG. In mdx cardiomyocytes, this inhibitory effect was iNOS- and eNOS-dependent and occurred through the SNO pathway. Basal NO production was nNOS- and iNOS-dependent in WT cardiomyocytes and eNOS- and iNOS-dependent in mdx cardiomyocytes. These results showed cardiomyocyte produces NO isoform-dependent transients upon membrane depolarization at the millisecond time scale activating a specific signaling pathway to negatively modulate the subsequent Ca2+ transient.
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Affiliation(s)
- Matias Mosqueira
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany.
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany.
| | - Roland Konietzny
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
| | - Carolin Andresen
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
- Division of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Chao Wang
- Cardio-Ventilatory Muscle Physiology Laboratory, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, Im Neuenheimer Feld 326, R. 305, 69120, Heidelberg, Germany
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
- Cardiovascular Department, Wuhan No. 1 Hospital, Hubei, China
| | - Rainer H A Fink
- Medical Biophysics Unit, Institute of Physiology and Pathophysiology, University Hospital Heidelberg, 69120, Heidelberg, Germany
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Yousefzadeh N, Jeddi S, Ghasemi A. Impaired Cardiovascular Function in Male Rats with Hypo- and Hyperthyroidism: Involvement of Imbalanced Nitric Oxide Synthase Levels. Endocr Metab Immune Disord Drug Targets 2021; 21:526-533. [PMID: 32384042 DOI: 10.2174/1871530320666200508115543] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 04/04/2020] [Accepted: 04/06/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE All three isoforms of nitric oxide (NO) synthase (NOS) are targets for thyroid hormones in the cardiovascular system. The aim of this study was to assess the effects of hypo- and hyperthyroidism on inducible (iNOS), endothelial (eNOS), and neural (nNOS) NOS levels in aorta and heart tissues of male rats. METHODS Rats were divided into control, hypothyroid, and hyperthyroid groups; hypo- and hyperthyroidism were induced by adding propylthiouracil (500 mg/L) and L-thyroxine (12 mg/L) to drinking water for a period of 21 days. On day 21, systolic blood pressure, heart rate, left ventricular developed pressure (LVDP), peak rate of positive and negative (±dp/dt) changes in left ventricular pressure as well as NO metabolites (NOx) and iNOS, eNOS, and nNOS protein levels in aorta and heart, were all measured. RESULTS Compared to controls, LVDP and ±dp/dt were lower in both hypo- and hyperthyroid rats. Compared to controls, heart rate and systolic blood pressure were lower in hypothyroid and higher in hyperthyroid rats. NOx levels in the heart of hypothyroid rats were lower (53%), whereas that in hyperthyroid rats were higher (56% and 40%) than controls. Compared to controls, hypothyroid rats had lower levels of eNOS, iNOS, and nNOS in the aorta (16%, 34%, and 15%, respectively) and lower iNOS and higher nNOS in heart tissue (27% and 46%). In hyperthyroid rats, eNOS levels were lower (54% and 30%) and iNOS were higher (63%, and 35%) in the aorta and heart while nNOS was lower in the aorta (18%). CONCLUSION Hypothyroidism increased while hyperthyroidism decreased the ratio of eNOS/iNOS in aorta and heart; these changes of NOS levels were associated with impaired cardiovascular function.
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Affiliation(s)
- Nasibeh Yousefzadeh
- Endocrine Physiology Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Jeddi
- Endocrine Physiology Research Center, Research institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Asghar Ghasemi
- Endocrine Physiology Research Center, Research institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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The therapeutic potential of second and third generation CB1R antagonists. Pharmacol Ther 2020; 208:107477. [DOI: 10.1016/j.pharmthera.2020.107477] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/02/2020] [Indexed: 12/25/2022]
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Liu Y, Gao B, Zeng X, Yang J, Zhang L, Xu G, Jia R, Xu Z. Association between thyroid-stimulating hormone and maternal hemodynamics in hypertensive disorders of pregnancy: an observational study. BMC Pregnancy Childbirth 2019; 19:396. [PMID: 31675921 PMCID: PMC6824088 DOI: 10.1186/s12884-019-2556-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 10/14/2019] [Indexed: 11/10/2022] Open
Abstract
Background Hypertensive disorders of pregnancy (HDP) are characterized by hemodynamic disturbances. Altered thyroid function is a risk factor for poor outcomes of pregnancy. However, the associations between thyroid function biomarkers and maternal hemodynamics during pregnancy in HDP remain unclear. Methods From January 2016 to January 2018, pregnant women diagnosed with HDP admitted to the Nanjing Maternity and Child Health Care Hospital were prospectively enrolled in the third trimester. Normally distributed variables were expressed as mean ± standard deviation and skewed variables were expressed as median (25th percentile, 75th percentile). Correlations between thyroid-stimulating hormone (TSH) or free thyroxine (FT4) and maternal hemodynamic parameters were assessed by Pearson’s correlation coefficient and 95% confidence interval (95%CI). Bonferroni’s correction for multiple correlations was performed. Logistic regression models with odd ratio (OR) and 95%CI were applied to confirm the associations. Results A total of 163 third-trimester pregnant women with HDP with a mean gestational age of 35.62 ± 2.83 weeks were recruited. The infant birth weight of patients with elevated TSH levels was lower than that of patients with normal TSH levels (2635 ± 867 g vs. 3037 ± 673 g, p = 0.002). Reduced cardiac output (CO) was defined as CO < 3.5 L/min. The infant birth weight of patients with reduced CO was lower than that of patients with normal CO (2250 ± 510 g vs. 2890 ± 774 g, p = 0.002). TSH levels were significantly and negatively correlated with CO (r = − 0.260, 95%CI: − 0.392- -0.103, p < 0.001). FT4 levels were not significantly correlated with any of the maternal hemodynamic parameters (all p > 0.05). TSH level (OR = 1.371, 95%CI: 1.086–1.733, p = 0.008) was confirmed associated with reduced CO in the logistic regression analysis. Conclusions Elevated TSH levels are associated with reduced CO in HDP during the third trimester.
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Affiliation(s)
- Yu Liu
- Department of Obstetrics and Gynecology, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University; Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, 210004, China
| | - Bo Gao
- Department of Clinical Nutrition, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, 321 Zhongshan Road, Gulou District, Nanjing, China
| | - Xin Zeng
- Department of Obstetrics and Gynecology, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University; Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, 210004, China.,Nanjing Maternal and Child Health Institute, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, China
| | - Jing Yang
- Department of Science and Education, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University; Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, China
| | - Lei Zhang
- Department of Obstetrics and Gynecology, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University; Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, 210004, China
| | - Ganwei Xu
- Department of Medical Records, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University; Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, China
| | - Ruizhe Jia
- Department of Obstetrics and Gynecology, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University; Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, 210004, China.
| | - Zhengfeng Xu
- Department of Obstetrics and Gynecology, The affiliated Obstetrics and Gynecology Hospital with Nanjing Medical University; Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, 210004, China. .,Department of Prenatal Diagnosis, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, 123 Tianfeixiang, Mochou Road, Qinhuai District, Nanjing, China.
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Li T, Zhang Z, Zhang X, Chen Z, Cheng HJ, Ahmad S, Ferrario CM, Cheng CP. Reversal of angiotensin-(1-12)-caused positive modulation on left ventricular contractile performance in heart failure: Assessment by pressure-volume analysis. Int J Cardiol 2019; 301:135-141. [PMID: 31521437 DOI: 10.1016/j.ijcard.2019.09.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/19/2019] [Accepted: 09/04/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Angiotensin-(1-12) [Ang-(1-12)] is a renin-independent precursor for direct angiotensin-II production by chymase. Substantial evidence suggests that heart failure (HF) may alter cardiac Ang-(1-12) expression and activity; this novel Ang-(1-12)/chymase axis may be the main source for angiotensin-II deleterious actions in HF. We hypothesized that HF alters cardiac response to Ang-(1-12). Its stimulation may produce cardiac negative modulation and exacerbate left ventricle (LV) systolic and diastolic dysfunction. METHODS AND RESULTS We assessed the effects of Ang-(1-12) (2 nmol/kg/min, iv, 10 min) on LV contractility, LV diastolic filling, and LV-arterial coupling (AVC) in 16 SD male rats with HF-induced by isoproterenol (3 mo after 170 mg/kg sq. for 2 consecutive days) and 10 age-matched male controls. In normal controls, versus baseline, Ang-(1-12) increased LV end-systolic pressure, without altering heart rate, arterial elastance (EA), LV end-diastolic pressure (PED), the time constant of LV relaxation (τ) and ejection fraction (EF). Ang-(1-12) significantly increased the slopes (EES) of LV end-systolic pressure (P)-volume (V) relations and the slopes (MSW) of LV stroke wok-end-diastolic V relations, indicating increased LV contractility. AVC (quantified as EES/EA) improved. In contrast, in HF, versus HF baseline, Ang-(1-12) produced a similar increase in PES, but significantly increased τ, EA, and PED. The early diastolic portion of LV PV loop was shifted upward with reduced in EF. Moreover, Ang-(1-12) significantly decreased EES and MSW, demonstrating decreased LV contractility. AVC was decreased by 43%. CONCLUSIONS In both normal and HF rats, Ang-(1-12) causes similar vasoconstriction. In normal, Ang-(1-12) increases LV contractile function. In HF, Ang-(1-12) has adverse effects and depresses LV systolic and diastolic functional performance.
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Affiliation(s)
- Tiankai Li
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States of America
| | - Zhi Zhang
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States of America; Department of cardiology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine (originally named "Shanghai First People's Hospital"), Shanghai, China
| | - Xiaowei Zhang
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States of America; Department of Cardiology, The Second Hospital of Shandong University, Jinan, Shandong, China
| | - Zhe Chen
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States of America; Department of Endocrinology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Heng-Jie Cheng
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States of America
| | - Sarfaraz Ahmad
- Department of Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America; Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Carlos M Ferrario
- Department of Surgery, Wake Forest School of Medicine, Winston-Salem, North Carolina, United States of America; Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States of America
| | - Che Ping Cheng
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States of America.
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Mastorci F, Sabatino L, Vassalle C, Pingitore A. Cardioprotection and Thyroid Hormones in the Clinical Setting of Heart Failure. Front Endocrinol (Lausanne) 2019; 10:927. [PMID: 32047475 PMCID: PMC6997485 DOI: 10.3389/fendo.2019.00927] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Accepted: 12/19/2019] [Indexed: 01/14/2023] Open
Abstract
Ischemic heart disease is the main cause of morbidity and mortality worldwide and is becoming more widespread with population aging. Cardioprotection is a dynamic process characterized by mechanisms related to myocardial damage and activation of protective factors. Targeting these processes could be attractive as a new therapeutic strategy in the evolution of post-ischemic heart failure (HF). In this context, the role of thyroid hormone (TH)-mediated cardioprotection is supported by a number of findings regarding the modulation of neuroendocrine systems, inflammatory and oxidative stress status, pro-survival intracellular pathways, and epigenetic factors, its effects on cardiac angiogenesis, structure, and function and on the preservation of mitochondrial function and morphology, and its beneficial effects on cell growth and redifferentiation. Moreover, the numerous effects of TH on the heart involve genomic mechanisms, which include cardiac differentiation during the perinatal period and non-genomic action, directed toward the maintenance of cardiovascular homeostasis. This evidence suggests that there is an opportunity to treat HF patients with TH. This review is mainly focused on the clinical evidence of the role of the thyroid system in the complex setting of HF.
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Affiliation(s)
| | | | | | - Alessandro Pingitore
- Clinical Physiology Institute, CNR, Pisa, Italy
- *Correspondence: Alessandro Pingitore
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Llévenes P, Balfagón G, Blanco-Rivero J. Thyroid hormones affect nitrergic innervation function in rat mesenteric artery: Role of the PI3K/AKT pathway. Vascul Pharmacol 2018; 108:36-45. [PMID: 29751093 DOI: 10.1016/j.vph.2018.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 03/20/2018] [Accepted: 05/06/2018] [Indexed: 01/30/2023]
Abstract
We aimed to determine the influence of nitrergic innervation function on the decreased mesenteric arterial tone induced by high levels of triiodothyronine (T3), as a model of acute thyroiditis, as well as the mechanism/s implicated. We analysed in mesenteric segments from male Wistar rats the effect of 10 nmol/L T3 (2 h) on the vasomotor response to electrical field stimulation (EFS) in the presence/absence of specific neuronal NOS (nNOS) inhibitor L-NPA, or superoxide anion scavenger tempol. Nitric oxide (NO) release was measured in the presence/absence of tempol or PI3K inhibitor LY294002. Superoxide anion and peroxynitrite releases, nNOS, PI3K, AKT and superoxide dismutase (SOD) 1 and 2 expressions, nNOS and AKT phosphorylation, and SOD activity were analysed. T3 decreased EFS-induced vasoconstriction. L-NPA increased EFS-induced vasoconstriction more markedly in T3-incubated segments. T3 increased NO release. Tempol decreased EFS-induced vasoconstriction and augmented NO release only in segments without T3. LY294002 decreased NO release in T3-incubated segments. T3 diminished superoxide anion and peroxynitrite formation, enhanced SOD-2 expression, nNOS and AKT phosphorylations and SOD activity, and did not modify nNOS, PI3K, AKT and SOD-1 expressions. In conclusion, these results show a compensatory mechanism aimed at reducing the enhanced blood pressure that appears during acute thyroiditis.
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Affiliation(s)
- Pablo Llévenes
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Spain
| | - Gloria Balfagón
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Spain; Instituto de Investigación Hospital Universitario La Paz (IdIPaz), Spain
| | - Javier Blanco-Rivero
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid, Spain; Instituto de Investigación Hospital Universitario La Paz (IdIPaz), Spain.
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Li T, Zhang X, Cheng HJ, Zhang Z, Ahmad S, Varagic J, Li W, Cheng CP, Ferrario CM. Critical role of the chymase/angiotensin-(1-12) axis in modulating cardiomyocyte contractility. Int J Cardiol 2018; 264:137-144. [PMID: 29685688 DOI: 10.1016/j.ijcard.2018.03.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 02/23/2018] [Accepted: 03/13/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Angiotensin-(1-12) [Ang-(1-12)] is a chymase-dependent source for angiotensin II (Ang II) cardiac activity. The direct contractile effects of Ang-(1-12) in normal and heart failure (HF) remain to be demonstrated. We assessed the hypothesis that Ang-(1-12) may modulate [Ca2+]i regulation and alter cardiomyocyte contractility in normal and HF rats. METHODS AND RESULTS We compared left ventricle (LV) myocyte contractile and calcium transient ([Ca2+]iT) responses to angiotensin peptides in 16 SD rats with isoproterenol-induced HF and 16 age-matched controls. In normal myocytes, versus baseline, Ang II (10-6 M) superfusion significantly increased myocyte contractility (dL/dtmax: 40%) and [Ca2+]iT (29%). Ang-(1-12) (4 × 10-6 M) caused similar increases in dL/dtmax (34%) and [Ca2+]iT (25%). Compared with normal myocytes, superfusion of Ang II and Ang-(1-12) in myocytes obtained from rats with isoproterenol-induced HF caused similar but significantly attenuated positive inotropic actions with about 42% to 50% less increases in dL/dtmax and [Ca2+]iT. Chymostatin abolished Ang-(1-12)-mediated effects in normal and HF myocytes. The presence of an inhibitory cAMP analog, Rp-cAMPS prevented Ang-(1-12)-induced inotropic effects in both normal and HF myocytes. Incubation of HF myocytes with pertussis toxin (PTX) further augmented Ang II-mediated contractility. CONCLUSIONS Ang-(1-12) stimulates cardiomyocyte contractile function and [Ca2+]iT in both normal and HF rats through a chymase mediated action. Altered inotropic responses to Ang-(1-12) and Ang II in HF myocytes are mediated through a cAMP-dependent mechanism that is coupled to both stimulatory G and inhibitory PTX-sensitive G proteins.
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Affiliation(s)
- Tiankai Li
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Xiaowei Zhang
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States; Department of Cardiology, the Second Affiliated Hospital of Nantong University, Nantong, China
| | - Heng-Jie Cheng
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States
| | - Zhi Zhang
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States; Cardiovascular Department, Shanghai First People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Sarfaraz Ahmad
- Departments of Surgery, Internal Medicine-Nephrology, and Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Jasmina Varagic
- Departments of Surgery, Internal Medicine-Nephrology, and Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Weimin Li
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Che Ping Cheng
- Department of Cardiology, the First Affiliated Hospital of Harbin Medical University, Harbin, China; Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest School of Medicine, Winston Salem, NC, United States.
| | - Carlos M Ferrario
- Departments of Surgery, Internal Medicine-Nephrology, and Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States
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Kim JI, Yerasi C, Azzouqa A, Koiffman E, Weissman G, Wang Z, Moran J, Torguson R, Satler LF, Pichard AD, Waksman R, Lindsay J, Ben-Dor I. Patient characteristics in variable left ventricular recovery from Takotsubo syndrome. CARDIOVASCULAR REVASCULARIZATION MEDICINE 2018; 19:247-250. [DOI: 10.1016/j.carrev.2017.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Revised: 10/02/2017] [Accepted: 10/02/2017] [Indexed: 01/30/2023]
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16
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Wang JZ, Liu GJ, Li ZY, Wang XH. Pin1 in cardiovascular dysfunction: A potential double-edge role. Int J Cardiol 2016; 212:280-3. [DOI: 10.1016/j.ijcard.2016.03.181] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Accepted: 03/20/2016] [Indexed: 12/14/2022]
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Lee J, Bae EH, Ma SK, Kim SW. Altered Nitric Oxide System in Cardiovascular and Renal Diseases. Chonnam Med J 2016; 52:81-90. [PMID: 27231671 PMCID: PMC4880583 DOI: 10.4068/cmj.2016.52.2.81] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 03/14/2016] [Accepted: 03/22/2016] [Indexed: 01/02/2023] Open
Abstract
Nitric oxide (NO) is synthesized by a family of NO synthases (NOS), including neuronal, inducible, and endothelial NOS (n/i/eNOS). NO-mediated effects can be beneficial or harmful depending on the specific risk factors affecting the disease. In hypertension, the vascular relaxation response to acetylcholine is blunted, and that to direct NO donors is maintained. A reduction in the activity of eNOS is mainly responsible for the elevation of blood pressure, and an abnormal expression of iNOS is likely to be related to the progression of vascular dysfunction. While eNOS/nNOS-derived NO is protective against the development of atherosclerosis, iNOS-derived NO may be proatherogenic. eNOS-derived NO may prevent the progression of myocardial infarction. Myocardial ischemia/reperfusion injury is significantly enhanced in eNOS-deficient animals. An important component of heart failure is the loss of coronary vascular eNOS activity. A pressure-overload may cause severer left ventricular hypertrophy and dysfunction in eNOS null mice than in wild-type mice. iNOS-derived NO has detrimental effects on the myocardium. NO plays an important role in regulating the angiogenesis and slowing the interstitial fibrosis of the obstructed kidney. In unilateral ureteral obstruction, the expression of eNOS was decreased in the affected kidney. In triply n/i/eNOS null mice, nephrogenic diabetes insipidus developed along with reduced aquaporin-2 abundance. In chronic kidney disease model of subtotal-nephrectomized rats, treatment with NOS inhibitors decreased systemic NO production and induced left ventricular systolic dysfunction (renocardiac syndrome).
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Affiliation(s)
- JongUn Lee
- Department of Physiology, Chonnam National University Medical School, Gwangju, Korea
| | - Eun Hui Bae
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Seong Kwon Ma
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Soo Wan Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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