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Chiorescu RM, Lazar RD, Buksa SB, Mocan M, Blendea D. Biomarkers of Volume Overload and Edema in Heart Failure With Reduced Ejection Fraction. Front Cardiovasc Med 2022; 9:910100. [PMID: 35783848 PMCID: PMC9247259 DOI: 10.3389/fcvm.2022.910100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/23/2022] [Indexed: 12/19/2022] Open
Abstract
From a pathogenetic point of view, heart failure (HF) is characterized by the activation of several neurohumoral pathways with a role in maintaining the cardiac output and the adequate perfusion pressure in target organs and tissues. Decreased cardiac output in HF with reduced ejection fraction causes activation of the sympathetic nervous system, the renin angiotensin aldosterone system, arginine-vasopressin system, natriuretic peptides, and endothelin, all of which cause water and salt retention in the body. As a result, patients will present clinically as the main symptoms: dyspnea and peripheral edema caused by fluid redistribution to the lungs and/or by fluid overload. By studying these pathophysiological mechanisms, biomarkers with a prognostic and therapeutic role in the management of edema were identified in patients with HF with low ejection fraction. This review aims to summarize the current data from the specialty literature of such biomarkers with a role in the pathogenesis of edema in HF with low ejection fraction. These biomarkers may be the basis for risk stratification and the development of new therapeutic means in the treatment of edema in these patients.
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Affiliation(s)
- Roxana Mihaela Chiorescu
- Department of Internal Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Internal Medicine, Emergency Clinical County Hospital, Cluj-Napoca, Romania
| | - Roxana-Daiana Lazar
- Nicolae Stancioiu Heart Institute, Cluj-Napoca, Romania
- *Correspondence: Roxana-Daiana Lazar
| | - Sándor-Botond Buksa
- Department of Internal Medicine, Emergency Clinical County Hospital, Cluj-Napoca, Romania
| | - Mihaela Mocan
- Department of Internal Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Internal Medicine, Emergency Clinical County Hospital, Cluj-Napoca, Romania
| | - Dan Blendea
- Department of Internal Medicine, “Iuliu Haţieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Nicolae Stancioiu Heart Institute, Cluj-Napoca, Romania
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2
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Moon JS, da Cunha FF, Huh JY, Andreyev AY, Lee J, Mahata SK, Reis FC, Nasamran CA, Lee YS. ANT2 drives proinflammatory macrophage activation in obesity. JCI Insight 2021; 6:147033. [PMID: 34676827 PMCID: PMC8564915 DOI: 10.1172/jci.insight.147033] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 09/15/2021] [Indexed: 12/13/2022] Open
Abstract
Macrophage proinflammatory activation is an important etiologic component of the development of insulin resistance and metabolic dysfunction in obesity. However, the underlying mechanisms are not clearly understood. Here, we demonstrate that a mitochondrial inner membrane protein, adenine nucleotide translocase 2 (ANT2), mediates proinflammatory activation of adipose tissue macrophages (ATMs) in obesity. Ant2 expression was increased in ATMs of obese mice compared with lean mice. Myeloid-specific ANT2-knockout (ANT2-MKO) mice showed decreased adipose tissue inflammation and improved insulin sensitivity and glucose tolerance in HFD/obesity. At the molecular level, we found that ANT2 mediates free fatty acid–induced mitochondrial permeability transition, leading to increased mitochondrial reactive oxygen species production and damage. In turn, this increased HIF-1α expression and NF-κB activation, leading to proinflammatory macrophage activation. Our results provide a previously unknown mechanism for how obesity induces proinflammatory activation of macrophages with propagation of low-grade chronic inflammation (metaflammation).
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Affiliation(s)
- Jae-Su Moon
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA
| | - Flavia Franco da Cunha
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA
| | - Jin Young Huh
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA
| | - Alexander Yu Andreyev
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA
| | - Jihyung Lee
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA
| | - Sushil K Mahata
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA.,VA San Diego Healthcare System, San Diego, California, USA
| | - Felipe Cg Reis
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA
| | - Chanond A Nasamran
- Center for Computational Biology & Bioinformatics, Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Yun Sok Lee
- Department of Medicine, Division of Endocrinology and Metabolism, University of California San Diego, La Jolla, California, USA
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3
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Hwang HS, Lee MH, Go DJ, Kim HA. Norepinephrine modulates IL-1β-induced catabolic response of human chondrocytes. BMC Musculoskelet Disord 2021; 22:724. [PMID: 34425806 PMCID: PMC8383445 DOI: 10.1186/s12891-021-04598-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 08/03/2021] [Indexed: 01/13/2023] Open
Abstract
Background The influence of the sympathetic nervous system (SNS) on metabolism of bone and cartilage expressing β-adrenergic receptors (AR) was suggested. Here, we investigated whether the SNS functions as a modulator of cartilage metabolism induced by interleukin-1beta (IL-1β). Methods Human articular chondrocytes and articular cartilage were collected from patients with osteoarthritis (OA). Chondrocyte monolayer and cartilage explant culture were stimulated with IL-1β. The activity of β-ARs was modulated by an agonist, norepinephrine (NE), and antagonists, including propranolol, atenolol, nebivolol, and nadolol. Results The levels of β1-, β2-, and β3-AR in OA cartilage and IL-1β-treated chondrocytes were lower than normal cartilage and untreated cells. Treatment of chondrocytes with IL-1β and β-blockers, including propranolol, atenolol, nebivolol, and nadolol, for 6 h significantly upregulated IL-1β-induced expression of MMP-1, -3, and − 13, compared to chondrocytes treated with IL-1β alone, indicating that antagonism of β-AR confers catabolic signals. On the other hand, NE antagonized IL-1β-induced catabolic response. In addition, NE significantly inhibited IL-1β-induced release of glycosaminoglycan (GAG) from cartilage explant culture. In addition, β-AR activity significantly affected IL-1β-stimulated phosphorylation of JNK and ERK. These results indicate that β-AR signal is associated with cartilage metabolism. Conclusions Our findings showed that β-ARs is a regulator of cartilage catabolism induced with IL-1β. Supplementary Information The online version contains supplementary material available at 10.1186/s12891-021-04598-7.
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Affiliation(s)
- Hyun Sook Hwang
- Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, 896, Pyungchon, Anyang, Kyunggi, 14068, Korea.,Institute for Skeletal Aging, Hallym University, Chunchon, Gangwon, 24251, Korea
| | - Mi Hyun Lee
- Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, 896, Pyungchon, Anyang, Kyunggi, 14068, Korea.,Institute for Skeletal Aging, Hallym University, Chunchon, Gangwon, 24251, Korea
| | - Dong Jin Go
- Division of Rheumatology, Department of Internal Medicine, Hallym University Kangnam Sacred Heart Hospital, Seoul, 07442, Korea.
| | - Hyun Ah Kim
- Division of Rheumatology, Department of Internal Medicine, Hallym University Sacred Heart Hospital, 896, Pyungchon, Anyang, Kyunggi, 14068, Korea. .,Institute for Skeletal Aging, Hallym University, Chunchon, Gangwon, 24251, Korea.
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4
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Nandi SS, Katsurada K, Sharma NM, Anderson DR, Mahata SK, Patel KP. MMP9 inhibition increases autophagic flux in chronic heart failure. Am J Physiol Heart Circ Physiol 2020; 319:H1414-H1437. [PMID: 33064567 DOI: 10.1152/ajpheart.00032.2020] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Increased matrix metalloprotease 9 (MMP9) after myocardial infarction (MI) exacerbates ischemia-induced chronic heart failure (CHF). Autophagy is cardioprotective during CHF; however, whether increased MMP9 suppresses autophagic activity in CHF is unknown. This study aimed to determine whether increased MMP9 suppressed autophagic flux and MMP9 inhibition increased autophagic flux in the heart of rats with post-MI CHF. Sprague-Dawley rats underwent either sham surgery or coronary artery ligation 6-8 wk before being treated with MMP9 inhibitor for 7 days, followed by cardiac autophagic flux measurement with lysosomal inhibitor bafilomycin A1. Furthermore, autophagic flux was measured in vitro by treating H9c2 cardiomyocytes with two independent pharmacological MMP9 inhibitors, salvianolic acid B (SalB) and MMP9 inhibitor-I, and CRISPR/cas9-mediated MMP9 genetic ablation. CHF rats showed cardiac infarct, significantly increased left ventricular end-diastolic pressure (LVEDP), and increased MMP9 activity and fibrosis in the peri-infarct areas of left ventricular myocardium. Measurement of the autophagic markers LC3B-II and p62 with lysosomal inhibition showed decreased autophagic flux in the peri-infarct myocardium. Treatment with SalB for 7 days in CHF rats decreased MMP9 activity and cardiac fibrosis but increased autophagic flux in the peri-infarct myocardium. As an in vitro corollary study, measurement of autophagic flux in H9c2 cardiomyocytes and fibroblasts showed that pharmacological inhibition or genetic ablation of MMP9 upregulates autophagic flux. These data are consistent with our observations that MMP9 inhibition upregulates autophagic flux in the heart of rats with CHF. In conclusion, the results in this study suggest that the beneficial outcome of MMP9 inhibition in pathological cardiac remodeling is in part mediated by improved autophagic flux.NEW & NOTEWORTHY This study elucidates that the improved cardiac extracellular matrix (ECM) remodeling and cardioprotective effect of matrix metalloprotease 9 (MMP9) inhibition in chronic heart failure (CHF) are via increased autophagic flux. Autophagy is cardioprotective; however, the mechanism of autophagy suppression in CHF is unknown. We for the first time demonstrated here that increased MMP9 suppressed cardiac autophagy and ablation of MMP9 increased cardiac autophagic flux in CHF rats. Restoring the physiological level of autophagy in the failing heart is a challenge, and our study addressed this challenge. The novelty and highlights of this report are as follows: 1) MMP9 regulates cardiomyocyte and fibroblast autophagy, 2) MMP9 inhibition protects CHF after myocardial infarction (MI) via increased cardiac autophagic flux, 3) MMP9 inhibition increased cardiac autophagy via activation of AMP-activated protein kinase (AMPK)α, Beclin-1, Atg7 pathway and suppressed mechanistic target of rapamycin (mTOR) pathway.
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Affiliation(s)
- Shyam S Nandi
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Kenichi Katsurada
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Neeru M Sharma
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Daniel R Anderson
- Department of Cardiology, University of Nebraska Medical Center, Omaha, Nebraska
| | - Sushil K Mahata
- Department of Medicine, Metabolic Physiology and Ultrastructural Biology Laboratory, University of California, San Diego, California.,Department of Veterans Affairs San Diego Healthcare System, San Diego, California
| | - Kaushik P Patel
- Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, Nebraska
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Ji Q, Zhang Y, Zhang H, Liu J, Cao C, Yuan Z, Ma Q, Zhang W. Effects of β-adrenoceptor activation on haemodynamics during hypoxic stress in rats. Exp Physiol 2020; 105:1660-1668. [PMID: 32706493 DOI: 10.1113/ep088669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 07/23/2020] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? The acute hypoxic compensatory reaction is based on haemodynamic changes, and β-adrenoceptors are involved in haemodynamic regulation. What is the role of β-adrenoceptors in haemodynamics during hypoxic exposure? What is the main finding and its importance? Activation of β2 -adrenoceptors attenuates the increase in pulmonary artery pressure during hypoxic exposure. This compensatory reaction activated by β2 -adrenoceptors during hypoxic stress is very important to maintain the activities of normal life. ABSTRACT The acute hypoxic compensatory reaction is accompanied by haemodynamic changes. We monitored the haemodynamic changes in rats undergoing acute hypoxic stress and applied antagonists of β-adrenoceptor (β-ARs) subtypes to reveal the regulatory role of β-ARs on haemodynamics. Sprague-Dawley rats were randomly divided into control, atenolol (β1 -AR antagonist), ICI 118,551 (β2 -AR antagonist) and propranolol (non-selective β-AR antagonist) groups. Rats were continuously recorded for changes in haemodynamic indexes for 10 min after administration. Then, a hypoxic ventilation experiment [15% O2 , 2200 m a.sl., 582 mmHg (0.765 Pa), P O 2 87.3 mmHg; Xining, China] was conducted, and the indexes were monitored for 5 min after induction of hypoxia. Plasma catecholamine concentrations were also measured. We found that, during normoxia, the mean arterial pressure, heart rate, ascending aortic blood flow and pulmonary artery pressure were reduced in the propranolol and atenolol groups. Catecholamine concentrations were increased significantly in the atenolol group compared with the control group. During hypoxia, mean arterial pressure and total peripheral resistance were decreased in the control, propranolol and ICI 118,551 groups. Pulmonary arterial pressure and pulmonary vascular resistance were increased in the propranolol and ICI 118,551 groups. During hypoxia, catecholamine concentrations were increased significantly in the control group, but decreased in β-AR antagonist groups. In conclusion, the β2 -AR is involved in regulation of pulmonary haemodynamics in the acute hypoxic compensatory reaction, and the activation of β2 -ARs attenuates the increase in pulmonary arterial pressure during hypoxic stress. This compensatory reaction activated by β2 -ARs during hypoxic stress is very important to maintain activities of normal life.
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Affiliation(s)
- Qiaorong Ji
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Yu Zhang
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Huan Zhang
- Department of Pathology, Weinan Central Hospital, Shengli street, Weinan, Shaanxi, 714000, China
| | - Jie Liu
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Chengzhu Cao
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Zhouyang Yuan
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Qianqian Ma
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Wei Zhang
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
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Matsushita M, Shirakabe A, Kobayashi N, Okazaki H, Shibata Y, Goda H, Shigihara S, Asano K, Tani K, Kiuchi K, Okajima F, Hata N, Asai K, Shimizu W. Mechanisms of Urgently Presenting Acute Heart Failure. Int Heart J 2020; 61:316-324. [PMID: 32173711 DOI: 10.1536/ihj.19-523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The mechanisms of urgently presenting acute heart failure (AHF) are not clear. We evaluated the serum catecholamine values of AHF patients immediately after admission. A total of 1,475 AHF patients were screened, and 484 who were admitted from their homes and in whom serum catecholamine could be evaluated immediately after admission were analyzed. The patients were divided into three groups according to the time interval from the onset of symptoms to admission (OA): < 3 hours (early-OA group; n = 283), 3-24 hours (middle-OA group; n = 142), and ≥24 hours (late-OA group; n = 59). In the early-OA group, the systolic blood pressure (SBP) was significantly higher, orthopnea was more frequent, the pH value was significantly decreased, and the use of noninvasive positive-pressure ventilation was required significantly more often than in the other groups. The serum noradrenaline level was significantly increased in the early-OA group (1.96 [1.02-3.60] ng/mL) than in the middle-OA (1.49 [0.73-3.41] ng/mL) and late-OA (1.40 [0.91-2.42] ng/mL) groups, and the adrenaline level was significantly increased in the early-OA group (0.36 [0.13-1.17] ng/mL) than in the late-OA (0.22 [0.09-0.52] ng/mL) group. A multivariate logistic regression model indicated the early-OA group was independently associated with the SBP > 140 mmHg (odds ratio [OR]: 2.219, 95% CI: 1.375-3.581), midnight/early morning admission (OR: 3.158, 95% CI: 2.048-4.868), and high serum catecholamine value (adrenaline > 0.96 ng/mL, noradrenaline > 3.39 ng/mL, and dopamine > 0.21 ng/mL) (OR 2.091, 95% CI: 1.161-3.767). In conclusion, urgently presented AHF might be induced by an endogenous catecholamine surge, which causes an excessive rise in blood pressure leading to increased after-overload and volume-shift lung congestion.
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Affiliation(s)
- Masato Matsushita
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Akihiro Shirakabe
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Nobuaki Kobayashi
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Hirotake Okazaki
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Yusaku Shibata
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Hiroki Goda
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Shota Shigihara
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Kazuhiro Asano
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Kenichi Tani
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Kazutaka Kiuchi
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Fumitaka Okajima
- Department of Endocrinology, Nippon Medical School Chiba-Hokusoh Hospital
| | - Noritake Hata
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Kuniya Asai
- Division of Intensive Care Unit, Nippon Medical School Chiba Hokusoh Hospital
| | - Wataru Shimizu
- Department of Cardiovascular Medicine, Nippon Medical School
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Asaikumar L, Vennila L, Akila P, Sivasangari S, Kanimozhi K, Premalatha V, Sindhu G. Preventive effect of nerolidol on isoproterenol induced myocardial damage in Wistar rats: Evidences from biochemical and histopathological studies. Drug Dev Res 2019; 80:814-823. [PMID: 31313346 DOI: 10.1002/ddr.21564] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/03/2019] [Accepted: 06/24/2019] [Indexed: 12/18/2022]
Abstract
The present study aimed at investigating the protective effects of nerolidol (NRD) against myocardial infarction (MI) induced by isoproterenol (ISO) in Wistar rats. The rats were randomly divided into five groups, each group consisting of six rats. Group I were treated as control rats, group II received NRD (200 mg/kg b.w.) by intragastric intubation for 21 days, group III received ISO (60 mg/kg b.w) subcutaneously (s.c) for two consecutive days on 22nd and 23rd day, group IV and V received NRD (100 and 200 mg/kg b.w) as in group II and additionally ISO was given for two consecutive days (22nd and 23rd). On 24th day all the rats were sacrificed by cervical dislocation and the blood and heart samples were collected. In the present study, ISO-induced myocardial damage was indicated by the changes in body weight, heart weight and the cardiac and hepatic marker enzymes such as creatine kinase (CK), creatine kinase-MB (CK-MB), alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), and troponin T and I (cTnT, cTnI) in the serum. In addition, the levels of lipid peroxidation products such as thiobarbituric acid reactive substances (TBARS), conjugated dines (CD), and lipid hydroperoxides (LHPs) increased significantly in the plasma and heart tissue. Activities of enzymatic antioxidants such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST) in erythrocytes and heart tissue and the levels of nonenzymatic antioxidants like vitamin C, vitamin E, and reduced glutathione (GSH) in plasma and heart tissue were decreased in ISO-induced rats. Histopathological observations were also supported with the biochemical parameters. Pretreatment with NRD at different doses (100 and 200 mg/kg b.w) for 21 days prevented the above changes induced by ISO. The 200 mg/kg b.w of NRD was more pronounced than the other dose and brought back all the above parameters near to normalcy.
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Affiliation(s)
- Loordhurani Asaikumar
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Lakshmanan Vennila
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Palaniyandi Akila
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Subramanian Sivasangari
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Kaliyamoorthi Kanimozhi
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Vengatesan Premalatha
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
| | - Ganapathi Sindhu
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Tamil Nadu, India
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Scott AL, Pranckevicius NA, Nurse CA, Scott GR. Regulation of catecholamine release from the adrenal medulla is altered in deer mice ( Peromyscus maniculatus) native to high altitudes. Am J Physiol Regul Integr Comp Physiol 2019; 317:R407-R417. [PMID: 31242021 DOI: 10.1152/ajpregu.00005.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
High-altitude natives have evolved to overcome environmental hypoxia and provide a compelling system to understand physiological function during reductions in oxygen availability. The sympathoadrenal system plays a key role in responses to acute hypoxia, but prolonged activation of this system in chronic hypoxia may be maladaptive. Here, we examined how chronic hypoxia exposure alters adrenal catecholamine secretion and how adrenal function is altered further in high-altitude natives. Populations of deer mice (Peromyscus maniculatus) native to low and high altitudes were each born and raised in captivity at sea level, and adults from each population were exposed to normoxia or hypobaric hypoxia for 5 mo. Using carbon fiber amperometry on adrenal slices, catecholamine secretion evoked by low doses of nicotine (10 µM) or acute hypoxia (Po2 ∼15-20 mmHg) was reduced in lowlanders exposed to hypobaric hypoxia, which was attributable mainly to a decrease in quantal charge rather than event frequency. However, secretion evoked by high doses of nicotine (50 µM) was unaffected. Hypobaric hypoxia also reduced plasma epinephrine and protein expression of 3,4-dihydroxyphenylalanine (DOPA) decarboxylase in the adrenal medulla of lowlanders. In contrast, highlanders were unresponsive to hypobaric hypoxia, exhibiting typically low adrenal catecholamine secretion, plasma epinephrine, and DOPA decarboxylase. Highlanders also had consistently lower catecholamine secretion evoked by high nicotine, smaller adrenal medullae with fewer chromaffin cells, and a larger adrenal cortex compared with lowlanders across both acclimation environments. Our results suggest that plastic responses to chronic hypoxia along with evolved changes in adrenal function attenuate catecholamine release in deer mice at high altitude.
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Affiliation(s)
- Angela L Scott
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | | | - Colin A Nurse
- Department of Biology, McMaster University, Hamilton, Ontario, Canada
| | - Graham R Scott
- Department of Biology, McMaster University, Hamilton, Ontario, Canada
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9
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Sahu BS, Mahata S, Bandyopadhyay K, Mahata M, Avolio E, Pasqua T, Sahu C, Bandyopadhyay GK, Bartolomucci A, Webster NJG, Van Den Bogaart G, Fischer-Colbrie R, Corti A, Eiden LE, Mahata SK. Catestatin regulates vesicular quanta through modulation of cholinergic and peptidergic (PACAPergic) stimulation in PC12 cells. Cell Tissue Res 2018; 376:51-70. [PMID: 30467710 DOI: 10.1007/s00441-018-2956-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/30/2018] [Indexed: 12/23/2022]
Abstract
We have previously shown that the chromogranin A (CgA)-derived peptide catestatin (CST: hCgA352-372) inhibits nicotine-induced secretion of catecholamines from the adrenal medulla and chromaffin cells. In the present study, we seek to determine whether CST regulates dense core (DC) vesicle (DCV) quanta (catecholamine and chromogranin/secretogranin proteins) during acute (0.5-h treatment) or chronic (24-h treatment) cholinergic (nicotine) or peptidergic (PACAP, pituitary adenylyl cyclase activating polypeptide) stimulation of PC12 cells. In acute experiments, we found that both nicotine (60 μM) and PACAP (0.1 μM) decreased intracellular norepinephrine (NE) content and increased 3H-NE secretion, with both effects markedly inhibited by co-treatment with CST (2 μM). In chronic experiments, we found that nicotine and PACAP both reduced DCV and DC diameters and that this effect was likewise prevented by CST. Nicotine or CST alone increased expression of CgA protein and together elicited an additional increase in CgA protein, implying that nicotine and CST utilize separate signaling pathways to activate CgA expression. In contrast, PACAP increased expression of CgB and SgII proteins, with a further potentiation by CST. CST augmented the expression of tyrosine hydroxylase (TH) but did not increase intracellular NE levels, presumably due to its inability to cause post-translational activation of TH through serine phosphorylation. Co-treatment of CST with nicotine or PACAP increased quantal size, plausibly due to increased synthesis of CgA, CgB and SgII by CST. We conclude that CST regulates DCV quanta by acutely inhibiting catecholamine secretion and chronically increasing expression of CgA after nicotinic stimulation and CgB and SgII after PACAPergic stimulation.
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Affiliation(s)
- Bhavani Shankar Sahu
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA. .,Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0732, USA.
| | - Sumana Mahata
- California Institute of Technology, Pasadena, CA, USA
| | - Keya Bandyopadhyay
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0732, USA
| | - Manjula Mahata
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0732, USA
| | | | | | - Chinmayi Sahu
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA
| | - Gautam K Bandyopadhyay
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0732, USA
| | - Alessandro Bartolomucci
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, USA
| | - Nicholas J G Webster
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0732, USA.,VA San Diego Healthcare System, San Diego, CA, USA
| | | | | | - Angelo Corti
- IRCCS San Raffaele Scientific Institute, San Raffaele Vita-Salute University, Milan, Italy
| | - Lee E Eiden
- Section on Molecular Neuroscience, NIMH-IRP, Bethesda, MD, USA
| | - Sushil K Mahata
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0732, USA. .,VA San Diego Healthcare System, San Diego, CA, USA.
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10
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Highly Sensitive Determination for Catecholamines Using Boronate Affinity Polymer Monolith Microextraction with In-Situ Derivatization and HPLC Fluorescence Detection. Chromatographia 2018. [DOI: 10.1007/s10337-018-3592-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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Mastrianni KR, Kemnitzer WE, Miller KWP. A Novel, Automated Dispersive Pipette Extraction Technology Greatly Simplifies Catecholamine Sample Preparation for Downstream LC-MS/MS Analysis. SLAS Technol 2018; 24:117-123. [PMID: 30111228 DOI: 10.1177/2472630318792659] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Catecholamines are integral neurotransmitters in the central and peripheral nervous system. Clinically, catecholamine levels are determined to help diagnose disease and measure corresponding therapeutic effectiveness. However, manual extraction of catecholamines and their metabolites may be labor-intensive and user-variable and require a variety of peripheral laboratory devices, especially at low sample concentrations. Here, we propose a novel solid-phase extraction (SPE) method using patented dispersive pipette extraction (DPX) tip technology. The tips are readily integrated into an automated workflow to extract these compounds from urine, which increases analytical throughput while removing human variability and error. Diphenylboronic acid (DPBA) forms a stable, negatively charged complex with catecholamines in the samples, and when aspirated into the DPX tip, the complexed analytes are retained on a styrene divinyl benzene sorbent. Wash buffers remove interfering compounds, after which the complex is eluted from the tip using an acidic aqueous solution and subsequently measured via liquid chromatography with tandem mass spectrometry (LC-MS/MS). The automated DPX method for catecholamine sample preparation from urine has excellent linearity over more than three orders of magnitude with concentrations ranging from 0.5 to 1000 ng/mL, with replicate analyses resulting in coefficients of variation of less than 8%. This high-throughput workflow is appropriate for use in regulated laboratories.
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12
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Musial DC, Bomfim GH, Arranz-Tagarro JA, Méndez-López I, Miranda-Ferreira R, Jurkiewicz A, Jurkiewicz NH, García AG, Padín JF. Altered mitochondrial function, calcium signaling, and catecholamine release in chromaffin cells of diabetic and SHR rats. Eur J Pharmacol 2017; 815:416-426. [DOI: 10.1016/j.ejphar.2017.09.045] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 09/12/2017] [Accepted: 09/28/2017] [Indexed: 11/25/2022]
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13
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Wollam J, Mahata S, Riopel M, Hernandez-Carretero A, Biswas A, Bandyopadhyay GK, Chi NW, Eiden LE, Mahapatra NR, Corti A, Webster NJG, Mahata SK. Chromogranin A regulates vesicle storage and mitochondrial dynamics to influence insulin secretion. Cell Tissue Res 2017; 368:487-501. [PMID: 28220294 PMCID: PMC10843982 DOI: 10.1007/s00441-017-2580-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 01/16/2017] [Indexed: 01/01/2023]
Abstract
Chromogranin A (CgA) is a prohormone and a granulogenic factor that regulates secretory pathways in neuroendocrine tissues. In β-cells of the endocrine pancreas, CgA is a major cargo in insulin secretory vesicles. The impact of CgA deficiency on the formation and exocytosis of insulin vesicles is yet to be investigated. In addition, no literature exists on the impact of CgA on mitochondrial function in β-cells. Using three different antibodies, we demonstrate that CgA is processed to vasostatin- and catestatin-containing fragments in pancreatic islet cells. CgA deficiency in Chga-KO islets leads to compensatory overexpression of chromogranin B, secretogranin II, SNARE proteins and insulin genes, as well as increased insulin protein content. Ultrastructural studies of pancreatic islets revealed that Chga-KO β-cells contain fewer immature secretory granules than wild-type (WT) control but increased numbers of mature secretory granules and plasma membrane-docked vesicles. Compared to WT control, CgA-deficient β-cells exhibited increases in mitochondrial volume, numerical densities and fusion, as well as increased expression of nuclear encoded genes (Ndufa9, Ndufs8, Cyc1 and Atp5o). These changes in secretory vesicles and the mitochondria likely contribute to the increased glucose-stimulated insulin secretion observed in Chga-KO mice. We conclude that CgA is an important regulator for coordination of mitochondrial dynamics, secretory vesicular quanta and GSIS for optimal secretory functioning of β-cells, suggesting a strong, CgA-dependent positive link between mitochondrial fusion and GSIS.
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Affiliation(s)
- Joshua Wollam
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Sumana Mahata
- Division of Biology & Biological Engineering, California Institute of Technology, Pasadena, CA, USA
| | - Matthew Riopel
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | | | - Angshuman Biswas
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
| | | | - Nai-Wen Chi
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
| | - Lee E Eiden
- Section on Molecular Neuroscience, NIMH-IRP, Bethesda, MD, USA
| | - Nitish R Mahapatra
- Department of Biotechnology, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Angelo Corti
- IRCCS San Raffaele Scientific Institute, San Raffaele Vita-Salute University, Milan, Italy
| | - Nicholas J G Webster
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
| | - Sushil K Mahata
- Department of Medicine, University of California, San Diego, La Jolla, CA, USA.
- VA San Diego Healthcare System, San Diego, CA, USA.
- Metabolic Physiology & Ultrastructural Biology Laboratory, Department of Medicine, University of California, San Diego (0732), 9500 Gilman Drive, La Jolla, CA, 92093-0732, USA.
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14
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Quintana-Cabrera R, Mehrotra A, Rigoni G, Soriano ME. Who and how in the regulation of mitochondrial cristae shape and function. Biochem Biophys Res Commun 2017; 500:94-101. [PMID: 28438601 DOI: 10.1016/j.bbrc.2017.04.088] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 04/17/2017] [Indexed: 12/19/2022]
Abstract
Mitochondrial adaptation to different physiological conditions highly relies on the regulation of mitochondrial ultrastructure, particularly at the level of cristae compartment. Cristae represent the membrane hub where most of the respiratory complexes embed to account for OXPHOS and energy production in the form of adenosine triphosphate (ATP). Changes in cristae number and shape define the respiratory capacity as well as cell viability. The identification of key regulators of cristae morphology and the understanding of their contribution to the mitochondrial ultrastructure and function have become an strategic goal to understand mitochondrial disorders and to exploit as therapeutic targets. This review summarizes the known regulators of cristae ultrastructure and discusses their contribution and implications for mitochondrial dysfunction.
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Affiliation(s)
- R Quintana-Cabrera
- Department of Biology, University of Padova, Padova, 35121, Italy; Venetian Institute of Molecular Medicine, Padova 35129, Italy
| | - A Mehrotra
- Department of Biology, University of Padova, Padova, 35121, Italy
| | - G Rigoni
- Department of Biology, University of Padova, Padova, 35121, Italy
| | - M E Soriano
- Department of Biology, University of Padova, Padova, 35121, Italy.
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15
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Abstract
While crucial for the acute physiologic response to stress, the adrenergic system may become maladaptive upon prolonged stimulation in the course of development of heart failure. This has been the basis for the development of beta-blocking therapies, targeting mainly beta1-2 adrenoreceptors (B1-2AR). The third isotype, B3AR, was more recently identified in cardiac myocytes and endothelial cells from human (and many other animal species), where its distinctive coupling to nitric oxide and antioxidant pathways suggested potential protective properties that were unexploited so far. The observation of beneficial effects of B3AR expression/activation on myocardial remodeling and the availability of specific agonists for clinical use now open the way for directly testing the hypothesis in heart failure patients. We will briefly review the specificities of B3AR signaling in the context of the cardiovascular adrenergic system, the evidence supporting its beneficial effects and outline an ongoing clinical trial using the B3AR agonist, mirabegron in patients with/at risk of developing heart failure with preserved ejection fraction (HFpEF).
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Affiliation(s)
- Lauriane Y M Michel
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, B1.53.09, 52 Ave. Mounier, 1200, Brussels, Belgium
| | - Jean-Luc Balligand
- Pole of Pharmacology and Therapeutics (FATH), Institut de Recherche Experimentale et Clinique (IREC), Université Catholique de Louvain, B1.53.09, 52 Ave. Mounier, 1200, Brussels, Belgium.
- Department of Medicine, Cliniques Universitaires Saint-Luc, Université Catholique de Louvain, 10 Ave. Hippocrate, 1200, Brussels, Belgium.
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