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Mora AG, Furquim SR, Tartarotti SP, Andrade DR, Janussi SC, Krikorian K, Rocha T, Franco-Penteado CF, Priolli DG, Priviero FBM, Claudino MA. Progression of micturition dysfunction associated with the development of heart failure in rats: Model of overactive bladder. Life Sci 2019; 226:107-116. [PMID: 30965053 DOI: 10.1016/j.lfs.2019.04.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/03/2019] [Accepted: 04/05/2019] [Indexed: 10/27/2022]
Abstract
Heart failure (HF) has a strong association with the development of lower urinary tract symptoms, especially overactive bladder (OAB); although this condition remains poorly investigated. In this study, we assess the aortocaval fistula (ACF) model as a novel experimental model of micturition dysfunction, associated with HF, focused on the molecular and functional studies to evaluate the autonomic nervous system and urinary bladder remodeling. Male rats were submitted to ACF for HF induction. Echocardiography, cystometric, histomorphometry and molecular analysis, as well as concentration-response curves to carbachol and ATP and frequency-response curves to electrical field stimulation (EFS) were evaluated in Sham and HF (4- and 12-weeksendpoint) groups. Compared to SHAM, HF groups exhibited progressive increases in the left ventricle (LV) mass and fractional shortening which indicates cardiac dysfunction, although HF was characterized only after 12 weeks by the reduced ejection fraction. For micturition function, HF groups presented increased non-voiding contractions (NVC) and decreased bladder capacity; however, when comparing HF groups, these urinary parameters were significantly impaired over the weeks (12-weeks). The contractile responses induced by CCh, ATP and EFS were greater in detrusor muscle (DSM) from HF rats. mRNA expression for muscarinic receptors (M2 and M3) was higher in DSM only after 12 weeks of ACF, in addition to MMP9 and TGF-beta. Histomorphometric revealed increased urothelium thickness in both HF groups, whereas DSM thickness occurred only after 12 weeks. Thus, the ACF model induced cardiac dyfunction with progressive micturition dysfunction over the weeks, characterized by increased DSM contractile mechanisms as well as extracellular matrix remodeling in the urinary bladder, representing a useful tool to evaluate the OAB associated with HF.
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Affiliation(s)
- A G Mora
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - S R Furquim
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - S P Tartarotti
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - D R Andrade
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - S C Janussi
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - K Krikorian
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - T Rocha
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - C F Franco-Penteado
- Hematology and Hemotherapy Center, University of Campinas, Campinas, SP, Brazil; Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - D G Priolli
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - F B M Priviero
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA, USA
| | - M A Claudino
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil.
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Ninh VK, El Hajj EC, Mouton AJ, El Hajj MC, Gilpin NW, Gardner JD. Chronic Ethanol Administration Prevents Compensatory Cardiac Hypertrophy in Pressure Overload. Alcohol Clin Exp Res 2018; 42:10.1111/acer.13799. [PMID: 29846943 PMCID: PMC6269226 DOI: 10.1111/acer.13799] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/21/2018] [Indexed: 12/16/2022]
Abstract
BACKGROUND Alcohol is among the most commonly abused drugs worldwide and affects many organ systems, including the heart. Alcoholic cardiomyopathy is characterized by a dilated cardiac phenotype with extensive hypertrophy and extracellular matrix (ECM) remodeling. We have previously shown that chronic ethanol (EtOH) administration accelerates the progression to heart failure in a rat model of volume overload. However, the mechanism by which this decompensation occurs is unknown. For this study, we hypothesized that chronic EtOH administration would prevent compensatory hypertrophy and cardiac remodeling in a rodent model of pressure overload (PO). METHODS Abdominal aortic constriction was used to create PO in 8-week-old male Wistar rats. Alcohol administration was performed via chronic intermittent EtOH vapor inhalation for 2 weeks prior to surgery and for the duration of the 8-week study. Echocardiography measurements were taken to assess ventricular functional and structural changes. RESULTS PO increased posterior wall thickness and the hypertrophic markers, atrial and B-type natriuretic peptides (ANP and BNP). With the added stressor of EtOH, wall thickness, ANP, and BNP decreased in PO animals. The combination of PO and EtOH resulted in increased wall stress compared to PO alone. PO also caused increased expression of collagen I and III, whereas EtOH alone only increased collagen III. The combined stresses of PO and EtOH led to an increase in collagen I expression, but collagen III did not change, resulting in an increased collagen I/III ratio in the PO rats treated with EtOH. Lastly, Notch1 expression was significantly increased only in the PO rats treated with EtOH. CONCLUSIONS Our data indicate that chronic EtOH may limit the cardiac hypertrophy induced by PO which may be associated with a Notch1 mechanism, resulting in increased wall stress and altered ECM profile.
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Affiliation(s)
- Van K Ninh
- Department of Physiology, LSU Health Sciences Center, New Orleans, Louisiana
| | - Elia C El Hajj
- Department of Physiology, LSU Health Sciences Center, New Orleans, Louisiana
| | - Alan J Mouton
- Department of Physiology, LSU Health Sciences Center, New Orleans, Louisiana
| | - Milad C El Hajj
- Department of Physiology, LSU Health Sciences Center, New Orleans, Louisiana
| | - Nicholas W Gilpin
- Department of Physiology, LSU Health Sciences Center, New Orleans, Louisiana
| | - Jason D Gardner
- Department of Physiology, LSU Health Sciences Center, New Orleans, Louisiana
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Silva FH, Veiga FJR, Mora AG, Heck RS, De Oliveira CC, Gambero A, Franco-Penteado CF, Antunes E, Gardner JD, Priviero FBM, Claudino MA. A novel experimental model of erectile dysfunction in rats with heart failure using volume overload. PLoS One 2017; 12:e0187083. [PMID: 29095897 PMCID: PMC5667775 DOI: 10.1371/journal.pone.0187083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 10/15/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Patients with heart failure (HF) display erectile dysfunction (ED). However, the pathophysiology of ED during HF remains poorly investigated. OBJECTIVE This study aimed to characterize the aortocaval fistula (ACF) rat model associated with HF as a novel experimental model of ED. We have undertaken molecular and functional studies to evaluate the alterations of the nitric oxide (NO) pathway, autonomic nervous system and oxidative stress in the penis. METHODS Male rats were submitted to ACF for HF induction. Intracavernosal pressure in anesthetized rats was evaluated. Concentration-response curves to contractile (phenylephrine) and relaxant agents (sodium nitroprusside; SNP), as well as to electrical field stimulation (EFS), were obtained in the cavernosal smooth muscle (CSM) strips from sham and HF rats. Protein expression of endothelial NO synthase (eNOS) and neuronal NO synthase (nNOS) and phosphodiestarese-5 in CSM were evaluated, as well as NOX2 (gp91phox) and superoxide dismutase (SOD) mRNA expression. SOD activity and thiobarbituric acid reactive substances (TBARs) were also performed in plasma. RESULTS HF rats display erectile dysfunction represented by decreased ICP responses compared to sham rats. The neurogenic contractile responses elicited by EFS were greater in CSM from the HF group. Likewise, phenylephrine-induced contractions were greater in CSM from HF rats. Nitrergic response induced by EFS were decreased in the cavernosal tissue, along with lower eNOS, nNOS and phosphodiestarese-5 protein expressions. An increase of NOX2 and SOD mRNA expression in CSM and plasma TBARs of HF group were detected. Plasma SOD activity was decreased in HF rats. CONCLUSION ED in HF rats is associated with decreased NO bioavailability in erectile tissue due to eNOS/nNOS dowregulation and NOX2 upregulation, as well as hypercontractility of the penis. This rat model of ACF could be a useful tool to evaluate the molecular alterations of ED associated with HF.
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Affiliation(s)
- Fábio Henrique Silva
- Hematology and Hemotherapy Center, University of Campinas, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Frederico José Reis Veiga
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - Aline Gonçalves Mora
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - Rodrigo Sader Heck
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - Caroline Candida De Oliveira
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - Alessandra Gambero
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
| | - Carla Fernanda Franco-Penteado
- Hematology and Hemotherapy Center, University of Campinas, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas, Campinas, SP, Brazil
| | - Jason D. Gardner
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA, United States of America
| | | | - Mário Angelo Claudino
- Laboratory of Multidisciplinary Research, São Francisco University Medical School, Bragança Paulista, SP, Brazil
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Yariswamy M, Yoshida T, Valente AJ, Kandikattu HK, Sakamuri SSVP, Siddesha JM, Sukhanov S, Saifudeen Z, Ma L, Siebenlist U, Gardner JD, Chandrasekar B. Cardiac-restricted Overexpression of TRAF3 Interacting Protein 2 (TRAF3IP2) Results in Spontaneous Development of Myocardial Hypertrophy, Fibrosis, and Dysfunction. J Biol Chem 2016; 291:19425-36. [PMID: 27466370 PMCID: PMC5016681 DOI: 10.1074/jbc.m116.724138] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 07/25/2016] [Indexed: 01/19/2023] Open
Abstract
TRAF3IP2 (TRAF3 interacting protein 2; previously known as CIKS or Act1) is a key intermediate in the normal inflammatory response and the pathogenesis of various autoimmune and inflammatory diseases. Induction of TRAF3IP2 activates IκB kinase (IKK)/NF-κB, JNK/AP-1, and c/EBPβ and stimulates the expression of various inflammatory mediators with negative myocardial inotropic effects. To investigate the role of TRAF3IP2 in heart disease, we generated a transgenic mouse model with cardiomyocyte-specific TRAF3IP2 overexpression (TRAF3IP2-Tg). Echocardiography, magnetic resonance imaging, and pressure-volume conductance catheterization revealed impaired cardiac function in 2-month-old male transgenic (Tg) mice as evidenced by decreased ejection fraction, stroke volume, cardiac output, and peak ejection rate. Moreover, the male Tg mice spontaneously developed myocardial hypertrophy (increased heart/body weight ratio, cardiomyocyte cross-sectional area, GATA4 induction, and fetal gene re-expression). Furthermore, TRAF3IP2 overexpression resulted in the activation of IKK/NF-κB, JNK/AP-1, c/EBPβ, and p38 MAPK and induction of proinflammatory cytokines, chemokines, and extracellular matrix proteins in the heart. Although myocardial hypertrophy decreased with age, cardiac fibrosis (increased number of myofibroblasts and enhanced expression and deposition of fibrillar collagens) increased progressively. Despite these adverse changes, TRAF3IP2 overexpression did not result in cell death at any time period. Interestingly, despite increased mRNA expression, TRAF3IP2 protein levels and activation of its downstream signaling intermediates remained unchanged in the hearts of female Tg mice. The female Tg mice also failed to develop myocardial hypertrophy. In summary, these results demonstrate that overexpression of TRAF3IP2 in male mice is sufficient to induce myocardial hypertrophy, cardiac fibrosis, and contractile dysfunction.
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Affiliation(s)
- Manjunath Yariswamy
- From the Department of Medicine and Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri 65201
| | | | - Anthony J Valente
- University of Texas Health Science Center at San Antonio, San Antonio, Texas 78229
| | | | | | | | | | - Zubaida Saifudeen
- Department of Pediatric Nephrology Tulane University School of Medicine, New Orleans, Louisiana 70112
| | - Lixin Ma
- Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri 65201, Department of Radiology, University of Missouri, Columbia, Missouri 65211
| | - Ulrich Siebenlist
- Laboratory of Molecular Immunology, NIAID, National Institutes of Health, Bethesda, Maryland 20892, and
| | - Jason D Gardner
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, Louisiana 70112
| | - Bysani Chandrasekar
- From the Department of Medicine and Harry S. Truman Memorial Veterans' Hospital, Columbia, Missouri 65201,
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