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Collins HE, Alexander BT, Care AS, Davenport MH, Davidge ST, Eghbali M, Giussani DA, Hoes MF, Julian CG, LaVoie HA, Olfert IM, Ozanne SE, Bytautiene Prewit E, Warrington JP, Zhang L, Goulopoulou S. Guidelines for assessing maternal cardiovascular physiology during pregnancy and postpartum. Am J Physiol Heart Circ Physiol 2024; 327:H191-H220. [PMID: 38758127 DOI: 10.1152/ajpheart.00055.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/22/2024] [Accepted: 05/08/2024] [Indexed: 05/18/2024]
Abstract
Maternal mortality rates are at an all-time high across the world and are set to increase in subsequent years. Cardiovascular disease is the leading cause of death during pregnancy and postpartum, especially in the United States. Therefore, understanding the physiological changes in the cardiovascular system during normal pregnancy is necessary to understand disease-related pathology. Significant systemic and cardiovascular physiological changes occur during pregnancy that are essential for supporting the maternal-fetal dyad. The physiological impact of pregnancy on the cardiovascular system has been examined in both experimental animal models and in humans. However, there is a continued need in this field of study to provide increased rigor and reproducibility. Therefore, these guidelines aim to provide information regarding best practices and recommendations to accurately and rigorously measure cardiovascular physiology during normal and cardiovascular disease-complicated pregnancies in human and animal models.
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Grants
- HL169157 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- HD083132 HHS | NIH | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- Jewish Heritage Fund for Excellence
- The Biotechnology and Biological Sciences Research Council
- P20GM103499 HHS | NIH | National Institute of General Medical Sciences (NIGMS)
- Distinguished University Professor
- HL146562 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- The Lister Insititute
- ES032920 HHS | NIH | National Institute of Environmental Health Sciences (NIEHS)
- Canadian Insitute's of Health Research Foundation Grant
- HL149608 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- Christenson professor In Active Healthy Living
- Royal Society (The Royal Society)
- U.S. Department of Defense (DOD)
- HL138181 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- MC_00014/4 UKRI | Medical Research Council (MRC)
- HD111908 HHS | NIH | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- HL163003 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- APP2002129 NHMRC Ideas Grant
- HL159865 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- British Heart Foundation (BHF)
- HL131182 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- HL163818 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- NS103017 HHS | NIH | National Institute of Neurological Disorders and Stroke (NINDS)
- HL143459 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 20CSA35320107 American Heart Association (AHA)
- RG/17/12/33167 British Heart Foundation (BHF)
- National Heart Foundation Future Leader Fellowship
- P20GM121334 HHS | NIH | National Institute of General Medical Sciences (NIGMS)
- HL146562-04S1 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- HL155295 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- HD088590-06 HHS | NIH | Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
- HL147844 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- WVU SOM Synergy Grant
- R01 HL146562 NHLBI NIH HHS
- HL159447 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- ES034646-01 HHS | NIH | National Institute of Environmental Health Sciences (NIEHS)
- HL150472 HHS | NIH | National Heart, Lung, and Blood Institute (NHLBI)
- 2021T017 Dutch Heart Foundation Dekker Grant
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Affiliation(s)
- Helen E Collins
- University of Louisville, Louisville, Kentucky, United States
| | - Barbara T Alexander
- University of Mississippi Medical Center, Jackson, Mississippi, United States
| | - Alison S Care
- University of Adelaide, Adelaide, South Australia, Australia
| | | | | | - Mansoureh Eghbali
- University of California Los Angeles, Los Angeles, California, United States
| | | | | | - Colleen G Julian
- University of Colorado School of Medicine, Aurora, Colorado, United States
| | - Holly A LaVoie
- University of South Carolina School of Medicine, Columbia, South Carolina, United States
| | - I Mark Olfert
- West Virginia University School of Medicine, Morgantown, West Virginia, United States
| | | | | | - Junie P Warrington
- University of Mississippi Medical Center, Jackson, Mississippi, United States
| | - Lubo Zhang
- Loma Linda University School of Medicine, Loma Linda, California, United States
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2
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O'Driscoll JM, McCarthy FP, Giorgione V, Jalaludeen N, Seed PT, Gill C, Sparkes J, Poston L, Marber M, Shennan AH, Chappell LC, Thilaganathan B, Leeson P. Left Atrial Mechanics Following Preeclamptic Pregnancy. Hypertension 2024; 81:1644-1654. [PMID: 38757271 DOI: 10.1161/hypertensionaha.123.22577] [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] [Received: 12/12/2023] [Accepted: 05/05/2024] [Indexed: 05/18/2024]
Abstract
BACKGROUND Preterm preeclampsia is a pregnancy complication associated with myocardial dysfunction and premature cardiovascular disease morbidity and mortality. Left atrial (LA) strain is a noninvasive index of left ventricular end diastolic pressure and an early marker of heart failure risk. This study aimed to evaluate LA strain during the postpartum period in participants with and without preterm preeclampsia and to assess whether this varied in the presence of hypertension, cardiac dysfunction or both. METHODS In this longitudinal cohort study, 321 women from 28 hospitals with preterm preeclampsia (cases) underwent cardiovascular assessment 6 months postpartum. This is a secondary analysis of the PHOEBE study (ISRCTN01879376). An uncomplicated pregnancy control group (n=30) was recruited from a single center for comparison. A full cross-sectional transthoracic echocardiogram was performed, and from these images, the myocardial strain of the left atrium, including reservoir, conduit, and contractile strain, as well as LA stiffness, were calculated. RESULTS At 6 months postpartum, compared with controls, prior preeclampsia was associated with a significantly attenuated LA reservoir, conduit, and contractile strain, as well as increased LA stiffness (all P<0.001). LA strain was further reduced in preeclamptic women who had and had not developed hypertension, systolic, or diastolic dysfunction at 6 months postpartum (all P<0.05). CONCLUSIONS LA mechanics were significantly attenuated at 6 months postpartum in participants with preterm preeclampsia, whether or not they remained hypertensive or had evidence of ventricular dysfunction. Further studies are needed to determine whether postnatal LA strain may identify women at greater risk for future cardiovascular disease.
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Affiliation(s)
- Jamie M O'Driscoll
- School of Psychology and Life Science, Canterbury Christ Church University, Kent, United Kingdom (J.M.O.D.)
- Department of Cardiology, St George's University Hospitals NHS Foundation Trust, London, United Kingdom (J.M.O.D.)
| | - Fergus P McCarthy
- Department of Women and Children's Health, King's College London, United Kingdom (F.P.M.C., P.T.S., C.G., J.S., L.P., A.H.S., L.C.C.)
- Department of Obstetrics and Gynaecology, The INFANT Research Centre, University College Cork, Cork University Maternity Hospital, Ireland (F.P.M.C.)
| | - Veronica Giorgione
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust and Molecular & Clinical Sciences Research Institute, St George's University of London, United Kingdom (V.G., B.T.)
| | - Navazh Jalaludeen
- Cambridge Clinical Trials Unit, Cambridge University Hospitals NHS Foundation Trust, United Kingdom (N.J.)
| | - Paul T Seed
- Department of Women and Children's Health, King's College London, United Kingdom (F.P.M.C., P.T.S., C.G., J.S., L.P., A.H.S., L.C.C.)
| | - Carolyn Gill
- Department of Women and Children's Health, King's College London, United Kingdom (F.P.M.C., P.T.S., C.G., J.S., L.P., A.H.S., L.C.C.)
| | - Jenie Sparkes
- Department of Women and Children's Health, King's College London, United Kingdom (F.P.M.C., P.T.S., C.G., J.S., L.P., A.H.S., L.C.C.)
| | - Lucilla Poston
- Department of Women and Children's Health, King's College London, United Kingdom (F.P.M.C., P.T.S., C.G., J.S., L.P., A.H.S., L.C.C.)
| | - Mike Marber
- Cardiovascular Division, King's College London British Heart Foundation Centre of Excellence, The Rayne Institute, St. Thomas' Hospital Campus, United Kingdom (M.M.)
| | - Andrew H Shennan
- Department of Women and Children's Health, King's College London, United Kingdom (F.P.M.C., P.T.S., C.G., J.S., L.P., A.H.S., L.C.C.)
| | - Lucy C Chappell
- Department of Women and Children's Health, King's College London, United Kingdom (F.P.M.C., P.T.S., C.G., J.S., L.P., A.H.S., L.C.C.)
| | - Basky Thilaganathan
- Fetal Medicine Unit, St George's University Hospitals NHS Foundation Trust and Molecular & Clinical Sciences Research Institute, St George's University of London, United Kingdom (V.G., B.T.)
| | - Paul Leeson
- Oxford Cardiovascular Clinical Research Facility, Radcliffe Department of Medicine, University of Oxford, United Kingdom (P.L.)
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3
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Giovou AE, Gladka MM, Christoffels VM. The Impact of Natriuretic Peptides on Heart Development, Homeostasis, and Disease. Cells 2024; 13:931. [PMID: 38891063 PMCID: PMC11172276 DOI: 10.3390/cells13110931] [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] [Received: 04/24/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024] Open
Abstract
During mammalian heart development, the clustered genes encoding peptide hormones, Natriuretic Peptide A (NPPA; ANP) and B (NPPB; BNP), are transcriptionally co-regulated and co-expressed predominately in the atrial and ventricular trabecular cardiomyocytes. After birth, expression of NPPA and a natural antisense transcript NPPA-AS1 becomes restricted to the atrial cardiomyocytes. Both NPPA and NPPB are induced by cardiac stress and serve as markers for cardiovascular dysfunction or injury. NPPB gene products are extensively used as diagnostic and prognostic biomarkers for various cardiovascular disorders. Membrane-localized guanylyl cyclase receptors on many cell types throughout the body mediate the signaling of the natriuretic peptide ligands through the generation of intracellular cGMP, which interacts with and modulates the activity of cGMP-activated kinase and other enzymes and ion channels. The natriuretic peptide system plays a fundamental role in cardio-renal homeostasis, and its potent diuretic and vasodilatory effects provide compensatory mechanisms in cardiac pathophysiological conditions and heart failure. In addition, both peptides, but also CNP, have important intracardiac actions during heart development and homeostasis independent of the systemic functions. Exploration of the intracardiac functions may provide new leads for the therapeutic utility of natriuretic peptide-mediated signaling in heart diseases and rhythm disorders. Here, we review recent insights into the regulation of expression and intracardiac functions of NPPA and NPPB during heart development, homeostasis, and disease.
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Affiliation(s)
- Alexandra E Giovou
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, 1105AZ Amsterdam, The Netherlands
| | - Monika M Gladka
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, 1105AZ Amsterdam, The Netherlands
| | - Vincent M Christoffels
- Department of Medical Biology, Amsterdam Cardiovascular Sciences, Amsterdam University Medical Centers, 1105AZ Amsterdam, The Netherlands
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4
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Thurstin AA, Egeli AN, Goldsmith EC, Spinale FG, LaVoie HA. Tissue inhibitor of metalloproteinase-4 deletion in mice impacts maternal cardiac function during pregnancy and postpartum. Am J Physiol Heart Circ Physiol 2023; 324:H85-H99. [PMID: 36459450 PMCID: PMC9799138 DOI: 10.1152/ajpheart.00408.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 11/22/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
Reversible physiological cardiac hypertrophy of the maternal heart occurs during pregnancy and involves extracellular matrix (ECM) remodeling. Previous mouse studies revealed that changes in ECM molecules accompany functional changes in the left ventricle (LV) during late pregnancy and postpartum. We evaluated the effect of global Timp4 deletion in female mice on LV functional parameters and ECM molecules during pregnancy and the postpartum period. Heart weights normalized to tibia lengths were increased in Timp4 knockout (Timp4 KO) virgin, pregnant, and postpartum day 2 mice compared with wild types. Serial echocardiography performed on pregnancy days 10, 12, and 18 and postpartum days (ppds) 2, 7, 14, 21, and 28 revealed that both wild-type and Timp4 KO mice increased end systolic and end diastolic volumes (ESV, EDV) by mid to late pregnancy compared with virgins, with EDV changes persisting through the postpartum period. When compared with wild types, Timp4 KO mice exhibited higher ejection fractions in virgins, at pregnancy days 10 and 18 and ppd2 and ppd14. High-molecular weight forms of COL1A1 and COL3A1 proteins in LV were greater in Timp4 KO virgins, and COL1A1 was higher in late pregnancy and on ppd2 compared with wild types. With exceptions, Timp4 KO mice during late pregnancy and the early postpartum period were able to maintain stroke volume similar to wild-type mice through increased ejection fraction. Although TIMP4 deletion in females exhibited altered ECM molecules, it did not adversely affect cardiac function during first pregnancies and lactation.NEW & NOTEWORTHY Pregnancy and lactation increase volume load on the heart. Defects in cardiac remodeling during pregnancy and postpartum can result in peripartum cardiomyopathy. TIMPs participate in cardiac remodeling. The present study reports the cardiac function in Timp4 knockout adult female mice during pregnancy and lactation. Timp4 knockout females at many time points have higher ejection fraction to maintain stroke volume. Global deletion of Timp4 was not detrimental to maternal heart function during first pregnancies and lactation.
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Affiliation(s)
- Ashley A Thurstin
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Allison N Egeli
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Edie C Goldsmith
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Francis G Spinale
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
| | - Holly A LaVoie
- Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, South Carolina
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5
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Sarzani R, Allevi M, Di Pentima C, Schiavi P, Spannella F, Giulietti F. Role of Cardiac Natriuretic Peptides in Heart Structure and Function. Int J Mol Sci 2022; 23:ijms232214415. [PMID: 36430893 PMCID: PMC9697447 DOI: 10.3390/ijms232214415] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 11/16/2022] [Accepted: 11/18/2022] [Indexed: 11/22/2022] Open
Abstract
Cardiac natriuretic peptides (NPs), atrial NP (ANP) and B-type NP (BNP) are true hormones produced and released by cardiomyocytes, exerting several systemic effects. Together with C-type NP (CNP), mainly expressed by endothelial cells, they also exert several paracrine and autocrine activities on the heart itself, contributing to cardiovascular (CV) health. In addition to their natriuretic, vasorelaxant, metabolic and antiproliferative systemic properties, NPs prevent cardiac hypertrophy, fibrosis, arrhythmias and cardiomyopathies, counteracting the development and progression of heart failure (HF). Moreover, recent studies revealed that a protein structurally similar to NPs mainly produced by skeletal muscles and osteoblasts called musclin/osteocrin is able to interact with the NPs clearance receptor, attenuating cardiac dysfunction and myocardial fibrosis and promoting heart protection during pathological overload. This narrative review is focused on the direct activities of this molecule family on the heart, reporting both experimental and human studies that are clinically relevant for physicians.
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Affiliation(s)
- Riccardo Sarzani
- Internal Medicine and Geriatrics, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Nazionale di Ricovero e Cura per Anziani (IRCCS INRCA), 60127 Ancona, Italy
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy
- Correspondence: (R.S.); Tel.: +39-071-5964696
| | - Massimiliano Allevi
- Internal Medicine and Geriatrics, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Nazionale di Ricovero e Cura per Anziani (IRCCS INRCA), 60127 Ancona, Italy
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy
| | - Chiara Di Pentima
- Internal Medicine and Geriatrics, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Nazionale di Ricovero e Cura per Anziani (IRCCS INRCA), 60127 Ancona, Italy
| | - Paola Schiavi
- Internal Medicine and Geriatrics, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Nazionale di Ricovero e Cura per Anziani (IRCCS INRCA), 60127 Ancona, Italy
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy
| | - Francesco Spannella
- Internal Medicine and Geriatrics, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Nazionale di Ricovero e Cura per Anziani (IRCCS INRCA), 60127 Ancona, Italy
- Department of Clinical and Molecular Sciences, Università Politecnica delle Marche, 60126 Ancona, Italy
| | - Federico Giulietti
- Internal Medicine and Geriatrics, Istituto di Ricovero e Cura a Carattere Scientifico-Istituto Nazionale di Ricovero e Cura per Anziani (IRCCS INRCA), 60127 Ancona, Italy
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6
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Tokudome T, Otani K, Mao Y, Jensen LJ, Arai Y, Miyazaki T, Sonobe T, Pearson JT, Osaki T, Minamino N, Ishida J, Fukamizu A, Kawakami H, Onozuka D, Nishimura K, Miyazato M, Nishimura H. Endothelial Natriuretic Peptide Receptor 1 Play Crucial Role for Acute and Chronic Blood Pressure Regulation by Atrial Natriuretic Peptide. Hypertension 2022; 79:1409-1422. [PMID: 35534926 DOI: 10.1161/hypertensionaha.121.18114] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND ANP (atrial natriuretic peptide), acting through NPR1 (natriuretic peptide receptor 1), provokes hypotension. Such hypotension is thought to be due to ANP inducing vasodilation via NPR1 in the vasculature; however, the underlying mechanism remains unclear. Here, we investigated the mechanisms of acute and chronic blood pressure regulation by ANP. METHODS AND RESULTS Immunohistochemical analysis of rat tissues revealed that NPR1 was abundantly expressed in endothelial cells and smooth muscle cells of small arteries and arterioles. Intravenous infusion of ANP significantly lowered systolic blood pressure in wild-type mice. ANP also significantly lowered systolic blood pressure in smooth muscle cell-specific Npr1-knockout mice but not in endothelial cell-specific Npr1-knockout mice. Moreover, ANP significantly lowered systolic blood pressure in Nos3-knockout mice. In human umbilical vein endothelial cells, treatment with ANP did not influence nitric oxide production or intracellular Ca2+ concentration, but it did hyperpolarize the cells. ANP-induced hyperpolarization of human umbilical vein endothelial cells was inhibited by several potassium channel blockers and was also abolished under knockdown of RGS2 (regulator of G-protein signaling 2), an GTPase activating protein in G-protein α-subunit. ANP increased Rgs2 mRNA expression in human umbilical vein endothelial cells but failed to lower systolic blood pressure in Rgs2-knockout mice. Endothelial cell-specific Npr1-overexpressing mice exhibited lower blood pressure than did wild-type mice independent of RGS2, and showed dilation of arterial vessels on synchrotron radiation microangiography. CONCLUSIONS Together, these results indicate that vascular endothelial NPR1 plays a crucial role in ANP-mediated blood pressure regulation, presumably by a mechanism that is RGS2-dependent in the acute phase and RGS2-independent in the chronic phase.
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Affiliation(s)
- Takeshi Tokudome
- Department of Biochemistry (T.T., Y.M., N.M., M.M., H.N.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Kentaro Otani
- Department of Regenerative Medicine and Tissue Engineering (K.O.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Yuanjie Mao
- Department of Biochemistry (T.T., Y.M., N.M., M.M., H.N.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Diabetes Institute, Ohio University, Athens (Y.M.)
| | - Lars Jørn Jensen
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark (L.J.J.)
| | - Yuji Arai
- Department of Research Promotion and Management (Y.A.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Takahiro Miyazaki
- Department of Cell Biology (T.M.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Takashi Sonobe
- Department of Cardiac Physiology (T.S., J.T.P.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - James T Pearson
- Department of Cardiac Physiology (T.S., J.T.P.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan.,Monash Biomedicine Discovery Institute and Department of Physiology, Monash University, Clayton, Australia (J.T.P.)
| | - Tsukasa Osaki
- Department of Biochemistry and Molecular Biology, Yamagata University School of Medicine, Japan (T.O.)
| | - Naoto Minamino
- Department of Biochemistry (T.T., Y.M., N.M., M.M., H.N.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Junji Ishida
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Ibaraki, Japan (J.I., A.F.)
| | - Akiyoshi Fukamizu
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, Ibaraki, Japan (J.I., A.F.)
| | - Hayato Kawakami
- Department of Anatomy, Kyorin University School of Medicine, Mitaka, Tokyo, Japan (H.K.)
| | - Daisuke Onozuka
- Department of Medical Informatics and Clinical Epidemiology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Japan (D.O.)
| | - Kunihiro Nishimura
- Department of Preventive Medicine and Epidemiology (K.N.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Mikiya Miyazato
- Department of Biochemistry (T.T., Y.M., N.M., M.M., H.N.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
| | - Hirohito Nishimura
- Department of Biochemistry (T.T., Y.M., N.M., M.M., H.N.), National Cerebral and Cardiovascular Center Research Institute, Osaka, Japan
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Abstract
Cardiovascular complications of pregnancy have risen substantially over the past decades, and now account for the majority of pregnancy-induced maternal deaths, as well as having substantial long-term consequences on maternal cardiovascular health. The causes and pathophysiology of these complications remain poorly understood, and therapeutic options are limited. Preclinical models represent a crucial tool for understanding human disease. We review here advances made in preclinical models of cardiovascular complications of pregnancy, including preeclampsia and peripartum cardiomyopathy, with a focus on pathological mechanisms elicited by the models and on relevance to human disease.
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Affiliation(s)
- Zolt Arany
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, Philadelphia (Z.A.)
| | - Denise Hilfiker-Kleiner
- Institute of Cardiovascular Complications in Pregnancy and in Oncologic Therapies, Philipps University Marburg, Germany (D.H.-K.)
| | - S Ananth Karumanchi
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA (S.A.K.)
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8
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Wagner BM, Robinson JW, Healy CL, Gauthier M, Dickey DM, Yee SP, Osborn JW, O’Connell TD, Potter LR. Guanylyl cyclase-A phosphorylation decreases cardiac hypertrophy and improves systolic function in male, but not female, mice. FASEB J 2022; 36:e22069. [PMID: 34859913 PMCID: PMC8826535 DOI: 10.1096/fj.202100600rrr] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 11/05/2021] [Accepted: 11/12/2021] [Indexed: 01/03/2023]
Abstract
Atrial natriuretic peptide (NP) and BNP increase cGMP, which reduces blood pressure and cardiac hypertrophy by activating guanylyl cyclase (GC)-A, also known as NPR-A or Npr1. Although GC-A is highly phosphorylated, and dephosphorylation inactivates the enzyme, the significance of GC-A phosphorylation to heart structure and function remains unknown. To identify in vivo processes that are regulated by GC-A phosphorylation, we substituted glutamates for known phosphorylation sites to make GC-A8E/8E mice that express an enzyme that cannot be inactivated by dephosphorylation. GC-A activity, but not protein, was increased in heart and kidney membranes from GC-A8E/8E mice. Activities were threefold higher in female compared to male cardiac ventricles. Plasma cGMP and testosterone were elevated in male and female GC-A8E/8E mice, but aldosterone was only increased in mutant male mice. Plasma and urinary creatinine concentrations were decreased and increased, respectively, but blood pressure and heart rate were unchanged in male GC-A8E/8E mice. Heart weight to body weight ratios for GC-A8E/8E male, but not female, mice were 12% lower with a 14% reduction in cardiomyocyte cross-sectional area. Subcutaneous injection of fsANP, a long-lived ANP analog, increased plasma cGMP and decreased aldosterone in male GC-AWT/WT and GC-A8E/8E mice at 15 min, but only GC-A8E/8E mice had elevated levels of plasma cGMP and aldosterone at 60 min. fsANP reduced ventricular ERK1/2 phosphorylation to a greater extent and for a longer time in the male mutant compared to WT mice. Finally, ejection fractions were increased in male but not female hearts from GC-A8E/8E mice. We conclude that increased phosphorylation-dependent GC-A activity decreases cardiac ERK activity, which results in smaller male hearts with improved systolic function.
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Affiliation(s)
- Brandon M. Wagner
- Department of Integrative Biology and Physiology, University of Minnesota, Medical School, Minneapolis, MN 55455 USA
| | - Jerid W. Robinson
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Medical School, Minneapolis, MN 55455 USA
| | - Chastity L. Healy
- Department of Integrative Biology and Physiology, University of Minnesota, Medical School, Minneapolis, MN 55455 USA
| | - Madeline Gauthier
- Department of Integrative Biology and Physiology, University of Minnesota, Medical School, Minneapolis, MN 55455 USA
| | - Deborah M. Dickey
- Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Medical School, Minneapolis, MN 55455 USA
| | - Siu-Pok Yee
- Department of Cell Biology at the University of Connecticut Health Center, Farmington, CT 06030 USA
| | - John W. Osborn
- Department of Surgery at the University of Minnesota, Medical School, Minneapolis, MN 55455 USA
| | - Timothy D. O’Connell
- Department of Integrative Biology and Physiology, University of Minnesota, Medical School, Minneapolis, MN 55455 USA,,Corresponding authors: Timothy D O’Connell , Lincoln R Potter
| | - Lincoln R. Potter
- Department of Integrative Biology and Physiology, University of Minnesota, Medical School, Minneapolis, MN 55455 USA,,Department of Biochemistry, Molecular Biology, and Biophysics, University of Minnesota, Medical School, Minneapolis, MN 55455 USA,,Corresponding authors: Timothy D O’Connell , Lincoln R Potter
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9
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Inhibition of cardiac PERK signaling promotes peripartum cardiac dysfunction. Sci Rep 2021; 11:18687. [PMID: 34548576 PMCID: PMC8455649 DOI: 10.1038/s41598-021-98344-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 08/31/2021] [Indexed: 11/08/2022] Open
Abstract
Peripartum cardiomyopathy (PPCM) is a life-threatening heart failure occurring in the peripartum period. Although mal-angiogenesis, induced by the 16-kDa N-terminal prolactin fragment (16 K PRL), is involved in the pathogenesis, the effect of full-length prolactin (23 K PRL) is poorly understood. We transfected neonate rat cardiomyocytes with plasmids containing 23 K PRL or 16 K PRL in vitro and found that 23 K PRL, but not 16 K PRL, upregulated protein kinase RNA-like endoplasmic reticulum kinase (PERK) signaling, and hypoxia promoted this effect. During the perinatal period, cardiomyocyte-specific PERK homogenous knockout (CM-KO) mice showed PPCM phenotypes after consecutive deliveries. Downregulation of PERK or JAK/STAT signaling and upregulation of apoptosis were observed in CM-KO mouse hearts. Moreover, in bromocriptine-treated CM-KO mice, cardiac function did not improve and cardiomyocyte apoptosis was not suppressed during the peripartum period. These results demonstrate that interaction between 23 K PRL and PERK signaling is cardioprotective during the peripartum term.
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Goda Y, Yamanaka D, Nishi H, Masuda M, Kamei H, Kumano M, Ito K, Katsumata M, Yamanouchi K, Kataoka N, Hakuno F, Takahashi SI. Dietary lysine restriction induces lipid accumulation in skeletal muscle through an increase in serum threonine levels in rats. J Biol Chem 2021; 297:101179. [PMID: 34508782 PMCID: PMC8488598 DOI: 10.1016/j.jbc.2021.101179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 08/23/2021] [Accepted: 09/07/2021] [Indexed: 11/02/2022] Open
Abstract
We previously reported that dietary amino acid restriction induces the accumulation of triglycerides (TAG) in the liver of growing rats. However, differences in TAG accumulation in individual cell types or other tissues were not examined. In this study, we show that TAG also accumulates in the muscle and adipose tissues of rats fed a low amino acid (low-AA) diet. In addition, dietary lysine restriction (low-Lys) induces lipid accumulation in muscle and adipose tissues. In adjusting the nitrogen content to that of the control diet, we found that glutamic acid supplementation to the low-AA diet blocked lipid accumulation, but supplementation with the low-Lys diet did not, suggesting that a shortage of nitrogen caused lipids to accumulate in the skeletal muscle in the rats fed a low-AA diet. Serum amino acid measurement revealed that, in rats fed a low-Lys diet, serum lysine levels were decreased, while serum threonine levels were significantly increased compared with the control rats. When the threonine content was restricted in the low-Lys diet, TAG accumulation induced by the low-Lys diet was completely abolished in skeletal muscle. Moreover, in L6 myotubes cultured in medium containing high threonine and low lysine, fatty acid uptake was enhanced compared with that in cells cultured in control medium. These findings suggest that the increased serum threonine in rats fed a low-Lys diet resulted in lipid incorporation into skeletal muscle, leading to the formation of fatty muscle tissue. Collectively, we propose conceptual hypothesis that "amino-acid signal" based on lysine and threonine regulates lipid metabolism.
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Affiliation(s)
- Yuki Goda
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Daisuke Yamanaka
- Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroki Nishi
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masato Masuda
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Hiroyasu Kamei
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Mikako Kumano
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Koichi Ito
- Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Masaya Katsumata
- School of Veterinary Science, Azabu University, Sagamihara, Kanagawa, Japan
| | - Keitaro Yamanouchi
- Department of Veterinary Medical Sciences, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Naoyuki Kataoka
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Fumihiko Hakuno
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.
| | - Shin-Ichiro Takahashi
- Departments of Animal Sciences and Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan.
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