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Rachedi NS, Tang Y, Tai YY, Zhao J, Chauvet C, Grynblat J, Akoumia KKF, Estephan L, Torrino S, Sbai C, Ait-Mouffok A, Latoche JD, Al Aaraj Y, Brau F, Abélanet S, Clavel S, Zhang Y, Guillermier C, Kumar NVG, Tavakoli S, Mercier O, Risbano MG, Yao ZK, Yang G, Ouerfelli O, Lewis JS, Montani D, Humbert M, Steinhauser ML, Anderson CJ, Oldham WM, Perros F, Bertero T, Chan SY. Dietary intake and glutamine-serine metabolism control pathologic vascular stiffness. Cell Metab 2024; 36:1335-1350.e8. [PMID: 38701775 PMCID: PMC11152997 DOI: 10.1016/j.cmet.2024.04.010] [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: 09/28/2023] [Revised: 02/15/2024] [Accepted: 04/12/2024] [Indexed: 05/05/2024]
Abstract
Perivascular collagen deposition by activated fibroblasts promotes vascular stiffening and drives cardiovascular diseases such as pulmonary hypertension (PH). Whether and how vascular fibroblasts rewire their metabolism to sustain collagen biosynthesis remains unknown. Here, we found that inflammation, hypoxia, and mechanical stress converge on activating the transcriptional coactivators YAP and TAZ (WWTR1) in pulmonary arterial adventitial fibroblasts (PAAFs). Consequently, YAP and TAZ drive glutamine and serine catabolism to sustain proline and glycine anabolism and promote collagen biosynthesis. Pharmacologic or dietary intervention on proline and glycine anabolic demand decreases vascular stiffening and improves cardiovascular function in PH rodent models. By identifying the limiting metabolic pathways for vascular collagen biosynthesis, our findings provide guidance for incorporating metabolic and dietary interventions for treating cardiopulmonary vascular disease.
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Affiliation(s)
- Nesrine S Rachedi
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Ying Tang
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Yi-Yin Tai
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Jingsi Zhao
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Caroline Chauvet
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Julien Grynblat
- Université Paris-Saclay, AP-HP, INSERM UMR_S 999, Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital de Bicêtre, Le Kremlin Bicêtre, France; Pôle Thoracique, Vasculaire et Transplantations, Hôpital Marie Lannelongue, Le Plessis-Robinson, France
| | - Kouamé Kan Firmin Akoumia
- Université Paris-Saclay, AP-HP, INSERM UMR_S 999, Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital de Bicêtre, Le Kremlin Bicêtre, France
| | - Leonard Estephan
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Stéphanie Torrino
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Chaima Sbai
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Amel Ait-Mouffok
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Joseph D Latoche
- Hillman Cancer Center, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Yassmin Al Aaraj
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Frederic Brau
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Sophie Abélanet
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Stephan Clavel
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France
| | - Yingze Zhang
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Christelle Guillermier
- Center for NanoImaging, Division of Genetics, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Naveen V G Kumar
- Aging Institute, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Sina Tavakoli
- Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA; Department of Radiology, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Olaf Mercier
- Université Paris-Saclay, AP-HP, INSERM UMR_S 999, Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital de Bicêtre, Le Kremlin Bicêtre, France; Assistance PubliqueHôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France
| | - Michael G Risbano
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Pulmonary and Critical Care Medicine, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | - Zhong-Ke Yao
- Molecular Pharmacology and Chemistry Program and Organic Synthesis Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Guangli Yang
- Molecular Pharmacology and Chemistry Program and Organic Synthesis Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Ouathek Ouerfelli
- Molecular Pharmacology and Chemistry Program and Organic Synthesis Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jason S Lewis
- Molecular Pharmacology and Chemistry Program and Organic Synthesis Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - David Montani
- Pôle Thoracique, Vasculaire et Transplantations, Hôpital Marie Lannelongue, Le Plessis-Robinson, France; Assistance PubliqueHôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France
| | - Marc Humbert
- Université Paris-Saclay, AP-HP, INSERM UMR_S 999, Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital de Bicêtre, Le Kremlin Bicêtre, France; Assistance PubliqueHôpitaux de Paris (AP-HP), Service de Pneumologie et Soins Intensifs Respiratoires, Centre de Référence de l'Hypertension Pulmonaire, Hôpital Bicêtre, 94270 Le Kremlin-Bicêtre, France
| | - Matthew L Steinhauser
- Center for NanoImaging, Division of Genetics, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA; Aging Institute, Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA
| | | | - William M Oldham
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Frédéric Perros
- Université Paris-Saclay, AP-HP, INSERM UMR_S 999, Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital de Bicêtre, Le Kremlin Bicêtre, France; Laboratoire CarMeN, UMR INSERM U1060/INRA U1397, Université Claude Bernard Lyon1, 69310 Pierre-Bénite, France
| | - Thomas Bertero
- Université Côte d'Azur, CNRS, INSERM, IPMC, IHU-RespirERA, Valbonne, France.
| | - Stephen Y Chan
- Center for Pulmonary Vascular Biology and Medicine, Pittsburgh Heart, Lung, and Blood Vascular Medicine Institute, Pittsburgh, PA, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh School of Medicine and UPMC, Pittsburgh, PA, USA.
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2
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Cain MT, Schäfer M, Park S, Barker AJ, Vargas D, Stenmark KR, Yu YRA, Bull TM, Ivy DD, Hoffman JRH. Characterization of pulmonary arterial stiffness using cardiac MRI. THE INTERNATIONAL JOURNAL OF CARDIOVASCULAR IMAGING 2024; 40:425-439. [PMID: 37902921 DOI: 10.1007/s10554-023-02989-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/17/2023] [Indexed: 11/01/2023]
Abstract
Pulmonary arterial stiffness (PAS) is a pathologic hallmark of all types of pulmonary hypertension (PH). Cardiac MRI (CMR), a gold-standard imaging modality for the evaluation of pulmonary flow, biventricular morphology and function has been historically reserved for the longitudinal clinical follow-up, PH phenotyping purposes, right ventricular evaluation, and research purposes. Over the last two decades, numerous indices combining invasive catheterization and non-invasive CMR have been utilized to phenotype the character and severity of PAS in different types of PH and to assess its clinically prognostic potential with encouraging results. Many recent studies have demonstrated a strong role of CMR derived PAS markers in predicting long-term clinical outcomes and improving currently gold standard risk assessment provided by the REVEAL calculator. With the utilization of a machine learning strategies, strong diagnostic and prognostic performance of CMR reported in multicenter studies, and ability to detect PH at early stages, the non-invasive assessment of PAS is on verge of routine clinical utilization. In this review, we focus on appraising important CMR studies interrogating PAS over the last 20 years, describing the benefits and limitations of different PAS indices, and their pathophysiologic relevance to pulmonary vascular remodeling. We also discuss the role of CMR and PAS in clinical surveillance and phenotyping of PH, and the long-term future goal to utilize PAS as a biomarker to aid with more targeted therapeutic management.
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Affiliation(s)
- Michael T Cain
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado - Denver | Anschutz Medical Campus, Aurora, CO, USA
| | - Michal Schäfer
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado - Denver | Anschutz Medical Campus, Aurora, CO, USA.
- Heart Institute, Children's Hospital Colorado, University of Colorado, Denver, USA.
| | - Sarah Park
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado - Denver | Anschutz Medical Campus, Aurora, CO, USA
| | - Alex J Barker
- Department of Radiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Daniel Vargas
- Department of Radiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Kurt R Stenmark
- Division of Pediatric Critical Care and Pulmonary Medicine, Department of Pediatrics, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Yen-Rei A Yu
- Division of Pediatric Critical Care and Pulmonary Medicine, Department of Pediatrics, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Todd M Bull
- Department of Critical Care and Pulmonary Medicine, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - D Dunbar Ivy
- Heart Institute, Children's Hospital Colorado, University of Colorado, Denver, USA
| | - Jordan R H Hoffman
- Division of Cardiothoracic Surgery, Department of Surgery, University of Colorado - Denver | Anschutz Medical Campus, Aurora, CO, USA
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3
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Nashat H, Favoccia C, Constantine A, Dimopoulos K. The investigation and diagnosis of pulmonary hypertension in adults with congenital heart disease. JOURNAL OF CONGENITAL CARDIOLOGY 2020. [DOI: 10.1186/s40949-020-00050-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractPulmonary hypertension is not uncommon in adult patients with congenital heart disease and can significantly affect their exercise capacity, quality of life and prognosis. Timely identification and management of pulmonary hypertension in these patients is important. Patients must be allocated to the correct diagnostic group and treatment decided upon, including offering pulmonary arterial hypertension therapies to those who are most likely to benefit.In this paper, we provide an overview of the diagnostic modalities that are used to investigate and diagnose pulmonary hypertension in modern adult congenital heart disease practice. Emphasis is placed on echocardiography, which is the modality of choice for raising the suspicion of PH, and cardiac catheterisation, which is fundamental in establishing the diagnosis. Other modalities, such as cardiac magnetic resonance imaging and computed tomography can provide complementary information on anatomy and physiology.Combining all this information into a clinical diagnosis and management plan requires clinical expertise and a multidisciplinary approach, especially when managing this rare and complex group of patients.
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Broncano J, Bhalla S, Gutierrez FR, Vargas D, Williamson EE, Makan M, Luna A. Cardiac MRI in Pulmonary Hypertension: From Magnet to Bedside. Radiographics 2020; 40:982-1002. [PMID: 32609599 DOI: 10.1148/rg.2020190179] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Pulmonary hypertension (PH) is a disease characterized by progressive rise of pulmonary artery (PA) pressure, which can lead to right ventricular (RV) failure. It is usually diagnosed late because of the nonspecificity of its symptoms. RV performance and adaptation to an increased afterload, reflecting the interaction of the PA and RV as a morphofunctional unit, constitute a critical determinant of morbidity and mortality in these patients. Therefore, early detection of dysfunction may prevent treatment failure. Cardiac MRI constitutes one of the most complete diagnostic modalities for diagnosing PH. It allows evaluation of the morphology and hemodynamics of the PA and RV. Several cine steady-state free-precession (SSFP)-derived parameters (indexed RV end-diastolic volume or RV systolic volume) and phase-contrast regional area change have been suggested as powerful biomarkers for prognosis and treatment. Recently, new cardiac MRI sequences have been added to clinical protocols for PH evaluation, providing brand-new information. Strain analysis with myocardial feature tracking can help detect early RV dysfunction, even with preserved ejection fraction. Four-dimensional flow cardiac MRI can enhance assessment of advanced RV and PA hemodynamics. Late gadolinium enhancement (LGE) imaging may allow detection of replacement fibrosis in PH patients, which is associated with poor outcome. T1 mapping may help detect interstitial fibrosis, even with normal LGE imaging results. The authors analyze the imaging workup of PH with a focus on the role of morphologic and functional cardiac MRI in diagnosis and management of PH, including some of the newer techniques. Online supplemental material is available for this article. ©RSNA, 2020.
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Affiliation(s)
- Jordi Broncano
- From the Department of Radiology, Hospital San Juan de Dios, Hospital de la Cruz Roja, RESSALTA HT Médica, Avenida el Brillante 36, 14012 Córdoba, Spain (J.B.); Cardiothoracic Imaging Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (S.B., F.R.G.); Department of Radiology, University of Colorado-Anschutz Medical Campus, Aurora, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (E.E.W.); Cardiovascular Division, Barnes Jewish Heart and Vascular Center, St Louis, Mo (M.M.); and MRI Section, Department of Radiology, Clínica Las Nieves, SERCOSA HT Médica, Jaén, Spain (A.L.)
| | - Sanjeev Bhalla
- From the Department of Radiology, Hospital San Juan de Dios, Hospital de la Cruz Roja, RESSALTA HT Médica, Avenida el Brillante 36, 14012 Córdoba, Spain (J.B.); Cardiothoracic Imaging Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (S.B., F.R.G.); Department of Radiology, University of Colorado-Anschutz Medical Campus, Aurora, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (E.E.W.); Cardiovascular Division, Barnes Jewish Heart and Vascular Center, St Louis, Mo (M.M.); and MRI Section, Department of Radiology, Clínica Las Nieves, SERCOSA HT Médica, Jaén, Spain (A.L.)
| | - Fernando R Gutierrez
- From the Department of Radiology, Hospital San Juan de Dios, Hospital de la Cruz Roja, RESSALTA HT Médica, Avenida el Brillante 36, 14012 Córdoba, Spain (J.B.); Cardiothoracic Imaging Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (S.B., F.R.G.); Department of Radiology, University of Colorado-Anschutz Medical Campus, Aurora, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (E.E.W.); Cardiovascular Division, Barnes Jewish Heart and Vascular Center, St Louis, Mo (M.M.); and MRI Section, Department of Radiology, Clínica Las Nieves, SERCOSA HT Médica, Jaén, Spain (A.L.)
| | - Daniel Vargas
- From the Department of Radiology, Hospital San Juan de Dios, Hospital de la Cruz Roja, RESSALTA HT Médica, Avenida el Brillante 36, 14012 Córdoba, Spain (J.B.); Cardiothoracic Imaging Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (S.B., F.R.G.); Department of Radiology, University of Colorado-Anschutz Medical Campus, Aurora, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (E.E.W.); Cardiovascular Division, Barnes Jewish Heart and Vascular Center, St Louis, Mo (M.M.); and MRI Section, Department of Radiology, Clínica Las Nieves, SERCOSA HT Médica, Jaén, Spain (A.L.)
| | - Eric E Williamson
- From the Department of Radiology, Hospital San Juan de Dios, Hospital de la Cruz Roja, RESSALTA HT Médica, Avenida el Brillante 36, 14012 Córdoba, Spain (J.B.); Cardiothoracic Imaging Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (S.B., F.R.G.); Department of Radiology, University of Colorado-Anschutz Medical Campus, Aurora, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (E.E.W.); Cardiovascular Division, Barnes Jewish Heart and Vascular Center, St Louis, Mo (M.M.); and MRI Section, Department of Radiology, Clínica Las Nieves, SERCOSA HT Médica, Jaén, Spain (A.L.)
| | - Majesh Makan
- From the Department of Radiology, Hospital San Juan de Dios, Hospital de la Cruz Roja, RESSALTA HT Médica, Avenida el Brillante 36, 14012 Córdoba, Spain (J.B.); Cardiothoracic Imaging Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (S.B., F.R.G.); Department of Radiology, University of Colorado-Anschutz Medical Campus, Aurora, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (E.E.W.); Cardiovascular Division, Barnes Jewish Heart and Vascular Center, St Louis, Mo (M.M.); and MRI Section, Department of Radiology, Clínica Las Nieves, SERCOSA HT Médica, Jaén, Spain (A.L.)
| | - Antonio Luna
- From the Department of Radiology, Hospital San Juan de Dios, Hospital de la Cruz Roja, RESSALTA HT Médica, Avenida el Brillante 36, 14012 Córdoba, Spain (J.B.); Cardiothoracic Imaging Section, Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, Mo (S.B., F.R.G.); Department of Radiology, University of Colorado-Anschutz Medical Campus, Aurora, Colo (D.V.); Department of Radiology, Mayo Clinic, Rochester, Minn (E.E.W.); Cardiovascular Division, Barnes Jewish Heart and Vascular Center, St Louis, Mo (M.M.); and MRI Section, Department of Radiology, Clínica Las Nieves, SERCOSA HT Médica, Jaén, Spain (A.L.)
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Patel AR, Patel H. Cardiac Sarcoidosis: Remembering the Forgotten Right Ventricle. JACC Cardiovasc Imaging 2020; 13:1406-1408. [PMID: 32307252 PMCID: PMC7907838 DOI: 10.1016/j.jcmg.2020.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 02/28/2020] [Indexed: 12/31/2022]
Affiliation(s)
- Amit R Patel
- University of Chicago Medicine, Chicago, Illinois.
| | - Hena Patel
- University of Chicago Medicine, Chicago, Illinois
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6
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Dasgupta A, Wu D, Tian L, Xiong PY, Dunham-Snary KJ, Chen KH, Alizadeh E, Motamed M, Potus F, Hindmarch CCT, Archer SL. Mitochondria in the Pulmonary Vasculature in Health and Disease: Oxygen-Sensing, Metabolism, and Dynamics. Compr Physiol 2020; 10:713-765. [PMID: 32163206 DOI: 10.1002/cphy.c190027] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In lung vascular cells, mitochondria serve a canonical metabolic role, governing energy homeostasis. In addition, mitochondria exist in dynamic networks, which serve noncanonical functions, including regulation of redox signaling, cell cycle, apoptosis, and mitochondrial quality control. Mitochondria in pulmonary artery smooth muscle cells (PASMC) are oxygen sensors and initiate hypoxic pulmonary vasoconstriction. Acquired dysfunction of mitochondrial metabolism and dynamics contribute to a cancer-like phenotype in pulmonary arterial hypertension (PAH). Acquired mitochondrial abnormalities, such as increased pyruvate dehydrogenase kinase (PDK) and pyruvate kinase muscle isoform 2 (PKM2) expression, which increase uncoupled glycolysis (the Warburg phenomenon), are implicated in PAH. Warburg metabolism sustains energy homeostasis by the inhibition of oxidative metabolism that reduces mitochondrial apoptosis, allowing unchecked cell accumulation. Warburg metabolism is initiated by the induction of a pseudohypoxic state, in which DNA methyltransferase (DNMT)-mediated changes in redox signaling cause normoxic activation of HIF-1α and increase PDK expression. Furthermore, mitochondrial division is coordinated with nuclear division through a process called mitotic fission. Increased mitotic fission in PAH, driven by increased fission and reduced fusion favors rapid cell cycle progression and apoptosis resistance. Downregulation of the mitochondrial calcium uniporter complex (MCUC) occurs in PAH and is one potential unifying mechanism linking Warburg metabolism and mitochondrial fission. Mitochondrial metabolic and dynamic disorders combine to promote the hyperproliferative, apoptosis-resistant, phenotype in PAH PASMC, endothelial cells, and fibroblasts. Understanding the molecular mechanism regulating mitochondrial metabolism and dynamics has permitted identification of new biomarkers, nuclear and CT imaging modalities, and new therapeutic targets for PAH. © 2020 American Physiological Society. Compr Physiol 10:713-765, 2020.
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Affiliation(s)
- Asish Dasgupta
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Danchen Wu
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Lian Tian
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Ping Yu Xiong
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | | | - Kuang-Hueih Chen
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Elahe Alizadeh
- Department of Medicine, Queen's Cardiopulmonary Unit (QCPU), Translational Institute of Medicine (TIME), Queen's University, Kingston, Ontario, Canada
| | - Mehras Motamed
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - François Potus
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Charles C T Hindmarch
- Department of Medicine, Queen's Cardiopulmonary Unit (QCPU), Translational Institute of Medicine (TIME), Queen's University, Kingston, Ontario, Canada
| | - Stephen L Archer
- Department of Medicine, Queen's University, Kingston, Ontario, Canada.,Kingston Health Sciences Centre, Kingston, Ontario, Canada.,Providence Care Hospital, Kingston, Ontario, Canada
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7
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Jones N, Burns AT, Prior DL. Echocardiographic Assessment of the Right Ventricle–State of the Art. Heart Lung Circ 2019; 28:1339-1350. [DOI: 10.1016/j.hlc.2019.04.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 04/11/2019] [Accepted: 04/11/2019] [Indexed: 12/19/2022]
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8
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Kiely DG, Levin DL, Hassoun PM, Ivy D, Jone PN, Bwika J, Kawut SM, Lordan J, Lungu A, Mazurek JA, Moledina S, Olschewski H, Peacock AJ, Puri G, Rahaghi FN, Schafer M, Schiebler M, Screaton N, Tawhai M, van Beek EJ, Vonk-Noordegraaf A, Vandepool R, Wort SJ, Zhao L, Wild JM, Vogel-Claussen J, Swift AJ. EXPRESS: Statement on imaging and pulmonary hypertension from the Pulmonary Vascular Research Institute (PVRI). Pulm Circ 2019; 9:2045894019841990. [PMID: 30880632 PMCID: PMC6732869 DOI: 10.1177/2045894019841990] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Accepted: 03/01/2019] [Indexed: 01/08/2023] Open
Abstract
Pulmonary hypertension (PH) is highly heterogeneous and despite treatment advances it remains a life-shortening condition. There have been significant advances in imaging technologies, but despite evidence of their potential clinical utility, practice remains variable, dependent in part on imaging availability and expertise. This statement summarizes current and emerging imaging modalities and their potential role in the diagnosis and assessment of suspected PH. It also includes a review of commonly encountered clinical and radiological scenarios, and imaging and modeling-based biomarkers. An expert panel was formed including clinicians, radiologists, imaging scientists, and computational modelers. Section editors generated a series of summary statements based on a review of the literature and professional experience and, following consensus review, a diagnostic algorithm and 55 statements were agreed. The diagnostic algorithm and summary statements emphasize the key role and added value of imaging in the diagnosis and assessment of PH and highlight areas requiring further research.
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Affiliation(s)
- David G. Kiely
- Sheffield Pulmonary Vascular Disease
Unit, Royal Hallamshire Hospital, Sheffield, UK
- Department of Infection, Immunity and
Cardiovascular Disease and Insigneo Institute, University of Sheffield, Sheffield,
UK
| | - David L. Levin
- Department of Radiology, Mayo Clinic,
Rochester, MN, USA
| | - Paul M. Hassoun
- Department of Medicine John Hopkins
University, Baltimore, MD, USA
| | - Dunbar Ivy
- Paediatric Cardiology, Children’s
Hospital, University of Colorado School of Medicine, Denver, CO, USA
| | - Pei-Ni Jone
- Paediatric Cardiology, Children’s
Hospital, University of Colorado School of Medicine, Denver, CO, USA
| | | | - Steven M. Kawut
- Department of Medicine, Perelman School
of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Jim Lordan
- Freeman Hospital, Newcastle Upon Tyne,
Newcastle, UK
| | - Angela Lungu
- Technical University of Cluj-Napoca,
Cluj-Napoca, Romania
| | - Jeremy A. Mazurek
- Division of Cardiovascular Medicine,
Hospital
of the University of Pennsylvania,
Philadelphia, PA, USA
| | | | - Horst Olschewski
- Division of Pulmonology, Ludwig
Boltzmann Institute Lung Vascular Research, Graz, Austria
| | - Andrew J. Peacock
- Scottish Pulmonary Vascular Disease,
Unit, University of Glasgow, Glasgow, UK
| | - G.D. Puri
- Department of Anaesthesiology and
Intensive Care, Post Graduate Institute of Medical Education and Research,
Chandigarh, India
| | - Farbod N. Rahaghi
- Brigham and Women’s Hospital, Harvard
Medical School, Boston, MA, USA
| | - Michal Schafer
- Paediatric Cardiology, Children’s
Hospital, University of Colorado School of Medicine, Denver, CO, USA
| | - Mark Schiebler
- Department of Radiology, University of
Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | | | - Merryn Tawhai
- Auckland Bioengineering Institute,
Auckland, New Zealand
| | - Edwin J.R. van Beek
- Edinburgh Imaging, Queens Medical
Research Institute, University of Edinburgh, Edinburgh, UK
| | | | - Rebecca Vandepool
- University of Arizona, Division of
Translational and Regenerative Medicine, Tucson, AZ, USA
| | - Stephen J. Wort
- Royal Brompton Hospital, London,
UK
- Imperial College, London, UK
| | | | - Jim M. Wild
- Department of Infection, Immunity and
Cardiovascular Disease and Insigneo Institute, University of Sheffield, Sheffield,
UK
- Academic Department of Radiology,
University of Sheffield, Sheffield, UK
| | - Jens Vogel-Claussen
- Institute of diagnostic and
Interventional Radiology, Medical Hospital Hannover, Hannover, Germany
| | - Andrew J. Swift
- Department of Infection, Immunity and
Cardiovascular Disease and Insigneo Institute, University of Sheffield, Sheffield,
UK
- Academic Department of Radiology,
University of Sheffield, Sheffield, UK
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9
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Hur DJ, Sugeng L. Non-invasive Multimodality Cardiovascular Imaging of the Right Heart and Pulmonary Circulation in Pulmonary Hypertension. Front Cardiovasc Med 2019; 6:24. [PMID: 30931315 PMCID: PMC6427926 DOI: 10.3389/fcvm.2019.00024] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Accepted: 02/20/2019] [Indexed: 12/13/2022] Open
Abstract
Pulmonary hypertension (PH) is defined as resting mean pulmonary arterial pressure (mPAP) ≥25 millimeters of mercury (mmHg) via right heart (RH) catheterization (RHC), where increased afterload in the pulmonary arterial vasculature leads to alterations in RH structure and function. Mortality rates have remained high despite therapy, however non-invasive imaging holds the potential to expedite diagnosis and lead to earlier initiation of treatment, with the hope of improving prognosis. While historically the right ventricle (RV) had been considered a passive chamber with minimal role in the overall function of the heart, in recent years in the evaluation of PH and RH failure the anatomical and functional assessment of the RV has received increased attention regarding its performance and its relationship to other structures in the RH-pulmonary circulation. Today, the RV is the key determinant of patient survival. This review provides an overview and summary of non-invasive imaging methods to assess RV structure, function, flow, and tissue characterization in the setting of imaging's contribution to the diagnostic, severity stratification, prognostic risk, response of treatment management, and disease surveillance implications of PH's impact on RH dysfunction and clinical RH failure.
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Affiliation(s)
- David J Hur
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, United States.,Division of Cardiology, Department of Medicine, Veterans Affairs Connecticut Healthcare System, West Haven, CT, United States
| | - Lissa Sugeng
- Section of Cardiovascular Medicine, Department of Internal Medicine, Yale School of Medicine, New Haven, CT, United States.,Echocardiography Laboratory, Yale New Haven Hospital, New Haven, CT, United States
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10
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Nowroozpoor A, Malekmohammad M, Seyyedi SR, Hashemian SM. Pulmonary Hypertension in Intensive Care Units: An Updated Review. TANAFFOS 2019; 18:180-207. [PMID: 32411259 PMCID: PMC7210574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pulmonary hypertension (PH) is a condition associated with high morbidity and mortality. Patients with PH who require critical care usually have severe right ventricular (RV) dysfunction. Although different groups of PH have different etiologies, pulmonary vascular dysfunction is common in these groups. PH can lead to increased pulmonary artery pressure, which can ultimately cause RV failure. Clinicians should be familiar with the presentations of this disease and diagnostic tools. The contributing factors, if present (e.g., sepsis), and coexisting conditions (e.g., arrhythmias) should be identified and addressed accordingly. The preload should be optimized by fluid administration, diuretics, and dialysis, if necessary. On the other hand, the RV afterload should be reduced to improve the RV function with pulmonary vasodilators, such as prostacyclins, inhaled nitric oxide, and phosphodiesterase type 5 inhibitors, especially in group 1 PH. Inotropes are also used to improve RV contractility, and if inadequate, use of ventricular assist devices and extracorporeal life support should be considered in suitable candidates. Moreover, vasopressors should be used to maintain systemic blood pressure, albeit cautiously, as they increase the RV afterload. Measures should be also taken to ensure adequate oxygenation. However, mechanical ventilation is avoided in RV failure. In this study, we reviewed the pathophysiology, manifestations, diagnosis, monitoring, and management strategies of PH, especially in intensive care units.
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Affiliation(s)
- Armin Nowroozpoor
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Majid Malekmohammad
- Tracheal Diseases Research Center, National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyyed Reza Seyyedi
- Lung Transplantation Research Center, Department of Cardiology, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammadreza Hashemian
- Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran,,Correspondence to: Hashemian SMR, Address: Clinical Tuberculosis and Epidemiology Research Center, NRITLD, Shahid Beheshti University of Medical Sciences, Tehran, Iran Email address:
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11
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Smedema J, van Geuns R, Ainslie G, Ector J, Heidbuchel H, Crijns HJ. Right ventricular involvement in cardiac sarcoidosis demonstrated with cardiac magnetic resonance. ESC Heart Fail 2017; 4:535-544. [PMID: 29154434 PMCID: PMC5695200 DOI: 10.1002/ehf2.12166] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 03/24/2017] [Indexed: 12/31/2022] Open
Abstract
AIMS Cardiac involvement in sarcoidosis is reported in up to 30% of patients. Left ventricular involvement demonstrated by contrast-enhanced cardiac magnetic resonance has been well validated. We sought to determine the prevalence and distribution of right ventricular late gadolinium enhancement in patients diagnosed with pulmonary sarcoidosis. METHODS AND RESULTS We prospectively evaluated 87 patients diagnosed with pulmonary sarcoidosis with contrast-enhanced cardiac magnetic resonance for right ventricular involvement. Pulmonary artery pressures were non-invasively evaluated with Doppler echocardiography. Patient characteristics were compared between the groups with and without right ventricular involvement, and right ventricular enhancement was correlated with pulmonary hypertension, ventricular mass, volume, and systolic function. Left ventricular late gadolinium enhancement was demonstrated in 30 patients (34%). Fourteen patients (16%) had right ventricular late gadolinium enhancement, with sole right ventricular enhancement in only two patients. The pattern of right ventricular enhancement consisted of right ventricular outflow tract enhancement in 1 patient, free wall enhancement in 8 patients, ventricular insertion point enhancement in 10 patients, and enhancement of the right side of the interventricular septum in 11 patients. Pulmonary arterial hypertension correlated with the presence of right ventricular enhancement (P < 0.001). Right ventricular enhancement correlated with systolic ventricular dysfunction (P < 0.001), hypertrophy (P = 0.001), and dilation (P < 0.001). CONCLUSIONS Right ventricular enhancement was present in 16% of patients diagnosed with pulmonary sarcoidosis and in 48% of patients with left ventricular enhancement. The presence of right ventricular enhancement correlated with pulmonary arterial hypertension, right ventricular systolic dysfunction, hypertrophy, and dilation.
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Affiliation(s)
- Jan‐Peter Smedema
- Department of CardiologyMaastricht University Medical CentreMaastrichtThe Netherlands
| | | | - Gillian Ainslie
- Respiratory Clinic, Department of MedicineGroote Schuur HospitalCape TownSouth Africa
| | - Joris Ector
- Department of CardiologyUniversity Hospitals GasthuisbergLeuvenBelgium
| | - Hein Heidbuchel
- University of Hasselt Heart CentreVirga Jessa HospitalHasseltBelgium
| | - Harry J.G.M. Crijns
- Department of CardiologyMaastricht University Medical CentreMaastrichtThe Netherlands
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12
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Scrutinio D, Catanzaro R, Santoro D, Ammirati E, Passantino A, Oliva F, La Rovere MT, De Salvo M, Guzzetti D, Vaninetti R, Venezia M, Frigerio M. Tricuspid Annular Plane Systolic Excursion in Acute Decompensated Heart Failure: Relevance for Risk Stratification. Can J Cardiol 2016; 32:963-9. [DOI: 10.1016/j.cjca.2015.09.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Revised: 09/15/2015] [Accepted: 09/15/2015] [Indexed: 12/26/2022] Open
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13
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Surkova E, Muraru D, Iliceto S, Badano LP. The use of multimodality cardiovascular imaging to assess right ventricular size and function. Int J Cardiol 2016; 214:54-69. [DOI: 10.1016/j.ijcard.2016.03.074] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 03/07/2016] [Accepted: 03/19/2016] [Indexed: 12/13/2022]
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14
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Mehmood M, Ambach SA, Taylor MD, Jefferies JL, Raman SV, Taylor RJ, Sawani H, Mathew J, Mazur W, Hor KN, Al-Khalidi HR. Relationship of Right Ventricular Size and Function with Respiratory Status in Duchenne Muscular Dystrophy. Pediatr Cardiol 2016; 37:878-83. [PMID: 26936620 DOI: 10.1007/s00246-016-1362-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 02/13/2016] [Indexed: 11/26/2022]
Abstract
The relationship between pulmonary function and right ventricle (RV) in Duchenne muscular dystrophy (DMD) has not been evaluated. Using cardiac magnetic resonance (CMR), we describe the relationship of RV size and function with spirometry in a DMD cohort. Fifty-seven boys undergoing CMR and pulmonary function testing within 1 month at a single center (2013-2015) were enrolled. Comparisons of RV ejection fraction (RVEF) and end-diastolic volume index (RVEDVI) were made across categories of percent forced vital capacity (FVC%), and relationships were assessed. Mean age was 15.5 ± 3.5 years. Spirometry and CMR were performed within 3.9 ± 4.1 days. Median FVC% was 92.0 % (67.5-116.5 %). Twenty-three (40 %) patients had abnormal FVC% (<80 %) of which 13 (57 %) had mild (FVC% 60-79 %), 6 (26 %) had moderate (FVC% 40-59 %), and 4 (17 %) had severe (FVC <40 %) reductions. Mean RVEF was 58.3 ± 3.7 %. Patients with abnormal FVC% were older and had lower RVEF and RVEDVI. Both RVEF and RVEDVI were significantly associated with FVC% (r = 0.31, p = 0.02 and r = 0.39, p = 0.003, respectively). In a large DMD cohort, RVEF and RVEDVI were related to FVC%. Worsening respiratory status may guide monitoring of cardiac function in these patients.
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Affiliation(s)
| | | | | | | | | | - Robin J Taylor
- The Queen Elizabeth Hospital Birmingham, Edgbaston, Birmingham, UK
| | | | - Jacob Mathew
- Cincinnati Children's Hospital, Cincinnati, OH, USA
| | - Wojciech Mazur
- Heart and Vascular Center, The Christ Hospital Health Network, Cincinnati, OH, USA.
| | - Kan N Hor
- Nationwide Children's Hospital, Columbus, OH, USA
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15
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Abstract
Noninvasive imaging of the heart plays an important role in the diagnosis and management of pulmonary hypertension (PH), and several well-established techniques are available for assessing performance of the right ventricle, the key determinant of patient survival. While right heart catheterisation is mandatory for establishing a diagnosis of PH, echocardiography is the most important screening tool for early detection of PH. Cardiac magnetic resonance imaging (CMRI) is also a reliable and practical tool that can be used as part of the diagnostic work-up. Echocardiography can measure a range of haemodynamic and anatomical variables (e.g. pericardial effusion and pulmonary artery pressure), whereas CMRI provides complementary information to echocardiography via high-resolution, three-dimensional imaging. Together with echocardiography and CMRI, techniques such as high-resolution computed tomography and positron emission tomography may also be valuable for screening, monitoring and follow-up assessments of patients with PH, but their clinical relevance has yet to be established. Technological advances have produced new variants of echocardiography, CMRI and positron emission tomography, and these permit closer examination of myocardial architecture, motion and deformation. Integrating these new tools into clinical practice in the future may lead to more precise noninvasive determination of diagnosis, risk and prognosis for PH.
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16
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Mandras SA, Oleck S, Ventura HO. Pulmonary Arterial Hypertension and the Failing Ventricle: Getting It Right. CARDIOVASCULAR INNOVATIONS AND APPLICATIONS 2015. [DOI: 10.15212/cvia.2015.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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18
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Tenorio J, Navas P, Barrios E, Fernández L, Nevado J, Quezada C, López-Meseguer M, Arias P, Mena R, Lobo J, Alvarez C, Heath K, Escribano-Subías P, Lapunzina P. A founderEIF2AK4mutation causes an aggressive form of pulmonary arterial hypertension in Iberian Gypsies. Clin Genet 2015; 88:579-83. [DOI: 10.1111/cge.12549] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 11/24/2014] [Accepted: 12/03/2014] [Indexed: 11/30/2022]
Affiliation(s)
- J. Tenorio
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras; ISCIII; 28029 Madrid Spain
- INGEMM, Instituto de Genética Médica y Molecular, IdiPAZ; Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid (UAM); 28046 Madrid Spain
| | - P. Navas
- RIC (Red de Investigación Cardiovascular); ISCIII; 28029 Madrid Spain
- Unidad Multidisciplinar de Hipertensión Pulmonar; Servicio de Cardiología. Hospital Doce de Octubre; Madrid Spain
| | - E. Barrios
- Unidad de Cardiología pediátrica; Hospital Universitario Ramón y Cajal; Madrid Spain
| | - L. Fernández
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras; ISCIII; 28029 Madrid Spain
- INGEMM, Instituto de Genética Médica y Molecular, IdiPAZ; Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid (UAM); 28046 Madrid Spain
| | - J. Nevado
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras; ISCIII; 28029 Madrid Spain
- INGEMM, Instituto de Genética Médica y Molecular, IdiPAZ; Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid (UAM); 28046 Madrid Spain
| | - C.A. Quezada
- Unidad Multidisciplinar de Hipertensión Pulmonar; Servicio de Cardiología. Hospital Doce de Octubre; Madrid Spain
| | - M. López-Meseguer
- Servicio de Neumología; Hospital Universitario Vall d' Hebron; Barcelona Spain
- Universitat Autònoma de Barcelona; Barcelonal Spain
- CIBERES, Centro de Investigación Biomédica en Red de Enfermedades Respiratorias; ISCIII; 28029 Madrid Spain
| | - P. Arias
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras; ISCIII; 28029 Madrid Spain
- INGEMM, Instituto de Genética Médica y Molecular, IdiPAZ; Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid (UAM); 28046 Madrid Spain
| | - R. Mena
- INGEMM, Instituto de Genética Médica y Molecular, IdiPAZ; Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid (UAM); 28046 Madrid Spain
| | - J.L. Lobo
- Servicio de Neumología; Hospital Txagorritxu; Vitoria Spain
| | - C. Alvarez
- Servicio de Neumología; Hospital Central de Asturias; Spain
| | - K. Heath
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras; ISCIII; 28029 Madrid Spain
- INGEMM, Instituto de Genética Médica y Molecular, IdiPAZ; Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid (UAM); 28046 Madrid Spain
| | - P. Escribano-Subías
- RIC (Red de Investigación Cardiovascular); ISCIII; 28029 Madrid Spain
- Unidad Multidisciplinar de Hipertensión Pulmonar; Servicio de Cardiología. Hospital Doce de Octubre; Madrid Spain
| | - P. Lapunzina
- CIBERER, Centro de Investigación Biomédica en Red de Enfermedades Raras; ISCIII; 28029 Madrid Spain
- INGEMM, Instituto de Genética Médica y Molecular, IdiPAZ; Hospital Universitario La Paz, Madrid, Spain; Universidad Autónoma de Madrid (UAM); 28046 Madrid Spain
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