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Ji Q, Zhang Y, Zhang H, Liu J, Cao C, Yuan Z, Ma Q, Zhang W. Effects of β-adrenoceptor activation on haemodynamics during hypoxic stress in rats. Exp Physiol 2020; 105:1660-1668. [PMID: 32706493 DOI: 10.1113/ep088669] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 07/23/2020] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? The acute hypoxic compensatory reaction is based on haemodynamic changes, and β-adrenoceptors are involved in haemodynamic regulation. What is the role of β-adrenoceptors in haemodynamics during hypoxic exposure? What is the main finding and its importance? Activation of β2 -adrenoceptors attenuates the increase in pulmonary artery pressure during hypoxic exposure. This compensatory reaction activated by β2 -adrenoceptors during hypoxic stress is very important to maintain the activities of normal life. ABSTRACT The acute hypoxic compensatory reaction is accompanied by haemodynamic changes. We monitored the haemodynamic changes in rats undergoing acute hypoxic stress and applied antagonists of β-adrenoceptor (β-ARs) subtypes to reveal the regulatory role of β-ARs on haemodynamics. Sprague-Dawley rats were randomly divided into control, atenolol (β1 -AR antagonist), ICI 118,551 (β2 -AR antagonist) and propranolol (non-selective β-AR antagonist) groups. Rats were continuously recorded for changes in haemodynamic indexes for 10 min after administration. Then, a hypoxic ventilation experiment [15% O2 , 2200 m a.sl., 582 mmHg (0.765 Pa), P O 2 87.3 mmHg; Xining, China] was conducted, and the indexes were monitored for 5 min after induction of hypoxia. Plasma catecholamine concentrations were also measured. We found that, during normoxia, the mean arterial pressure, heart rate, ascending aortic blood flow and pulmonary artery pressure were reduced in the propranolol and atenolol groups. Catecholamine concentrations were increased significantly in the atenolol group compared with the control group. During hypoxia, mean arterial pressure and total peripheral resistance were decreased in the control, propranolol and ICI 118,551 groups. Pulmonary arterial pressure and pulmonary vascular resistance were increased in the propranolol and ICI 118,551 groups. During hypoxia, catecholamine concentrations were increased significantly in the control group, but decreased in β-AR antagonist groups. In conclusion, the β2 -AR is involved in regulation of pulmonary haemodynamics in the acute hypoxic compensatory reaction, and the activation of β2 -ARs attenuates the increase in pulmonary arterial pressure during hypoxic stress. This compensatory reaction activated by β2 -ARs during hypoxic stress is very important to maintain activities of normal life.
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Affiliation(s)
- Qiaorong Ji
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Yu Zhang
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Huan Zhang
- Department of Pathology, Weinan Central Hospital, Shengli street, Weinan, Shaanxi, 714000, China
| | - Jie Liu
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Chengzhu Cao
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Zhouyang Yuan
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Qianqian Ma
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
| | - Wei Zhang
- Department of Basic Medicine, Medical College of Qinghai University, No.16 kunlun road, Xining, Qinghai, 810001, China.,Pathophysiology Laboratory, The Key Laboratory of Science and Technology for High Altitude Medicine, No.16 kunlun road, Xining, Qinghai, 810001, China
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Parati G, Agostoni P, Basnyat B, Bilo G, Brugger H, Coca A, Festi L, Giardini G, Lironcurti A, Luks AM, Maggiorini M, Modesti PA, Swenson ER, Williams B, Bärtsch P, Torlasco C. Clinical recommendations for high altitude exposure of individuals with pre-existing cardiovascular conditions: A joint statement by the European Society of Cardiology, the Council on Hypertension of the European Society of Cardiology, the European Society of Hypertension, the International Society of Mountain Medicine, the Italian Society of Hypertension and the Italian Society of Mountain Medicine. Eur Heart J 2019; 39:1546-1554. [PMID: 29340578 PMCID: PMC5930248 DOI: 10.1093/eurheartj/ehx720] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Accepted: 12/15/2017] [Indexed: 01/22/2023] Open
Abstract
Adapted from Bärtsch and Gibbs2 Physiological response to hypoxia. Life-sustaining oxygen delivery, in spite of a reduction in the partial pressure of inhaled oxygen between 25% and 60% (respectively at 2500 m and 8000 m), is ensured by an increase in pulmonary ventilation, an increase in cardiac output by increasing heart rate, changes in vascular tone, as well as an increase in haemoglobin concentration. BP, blood pressure; HR, heart rate; PaCO2, partial pressure of arterial carbon dioxide. ![]()
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Affiliation(s)
- Gianfranco Parati
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, S. Luca Hospital, Piazzale Brescia, 20, 20149 Milan, Italy.,Department of Medicine and Surgery, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1, 20126 Milan, Italy
| | - Piergiuseppe Agostoni
- Department of Cardiology, Heart Failure Unit, Centro Cardiologico Monzino, via Parea 4, 20138 Milan, Italy.,Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milano, via Festa del Perdono 7, 20122 Milan, Italy
| | - Buddha Basnyat
- Nuffield Department of Clinical Medicine, Oxford University Clinical Research Unit-Nepal and Centre for Tropical Medicine and Global Health, University of Oxford, Old Road campus, Roosevelt Drive, Headington, Oxford OX3 7FZ, UK
| | - Grzegorz Bilo
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, S. Luca Hospital, Piazzale Brescia, 20, 20149 Milan, Italy.,Department of Medicine and Surgery, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo, 1, 20126 Milan, Italy
| | - Hermann Brugger
- Institute of Mountain Emergency Medicine at the EURAC Research, viale Druso 1, 39100 Bolzano, Italy.,Medical University, Christoph-Probst-Platz 1, Innrain 52 A - 6020 Innsbruck, Austria
| | - Antonio Coca
- Hypertension and Vascular Risk Unit, Department of Internal Medicine, Hospital Clínic (IDIBAPS), University of Barcelona, Villarroel 170, 08036 Barcelona, Spain
| | - Luigi Festi
- Surgery Department, Ospedale di Circolo Fondazione Macchi, viale Luigi Borri, 57, 21100 Varese, Italy.,University of Insubria, via Ravasi 2, 21100 Varese, Italy
| | - Guido Giardini
- Department of Neurology, Neurophysiopathology Unit, Valle d'Aosta Regional Hospital, via Ginevra, 3, 11100 Aosta, Italy
| | - Alessandra Lironcurti
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, S. Luca Hospital, Piazzale Brescia, 20, 20149 Milan, Italy
| | - Andrew M Luks
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, 98195 WA, USA
| | - Marco Maggiorini
- Medical Intensive Care Unit, University Hospital, Rämistrasse 100, 8091 Zürich, Switzerland
| | - Pietro A Modesti
- Department of Experimental and Clinical Medicine, University of Florence, Largo Brambilla, 3, 50134 Florence, Florence, Italy
| | - Erik R Swenson
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, University of Washington, Seattle, 98195 WA, USA.,Pulmonary, Critical Care and Sleep Medicine, VA Puget Sound Health Care System, 1660 S Columbian Way, Seattle, 98108 WA, USA
| | - Bryan Williams
- University College London (UCL) and NIHR UCL Hospitals Biomedical Research Centre, NHS Foundation Trust, University College, Gower St, Bloomsbury, London WC1E 6BT, UK
| | - Peter Bärtsch
- Department of Internal Medicine, University Hospital, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Camilla Torlasco
- Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, S. Luca Hospital, Piazzale Brescia, 20, 20149 Milan, Italy
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12
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Bilo G, Villafuerte FC, Faini A, Anza-Ramírez C, Revera M, Giuliano A, Caravita S, Gregorini F, Lombardi C, Salvioni E, Macarlupu JL, Ossoli D, Landaveri L, Lang M, Agostoni P, Sosa JM, Mancia G, Parati G. Ambulatory Blood Pressure in Untreated and Treated Hypertensive Patients at High Altitude. Hypertension 2015; 65:1266-72. [DOI: 10.1161/hypertensionaha.114.05003] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 03/27/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Grzegorz Bilo
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Francisco C. Villafuerte
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Andrea Faini
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Cecilia Anza-Ramírez
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Miriam Revera
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Andrea Giuliano
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Sergio Caravita
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Francesca Gregorini
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Carolina Lombardi
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Elisabetta Salvioni
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Jose Luis Macarlupu
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Deborah Ossoli
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Leah Landaveri
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Morin Lang
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Piergiuseppe Agostoni
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - José Manuel Sosa
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Giuseppe Mancia
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
| | - Gianfranco Parati
- From the Department of Cardiovascular, Neural and Metabolic Sciences, Istituto Auxologico Italiano, Milan, Italy (G.B., A.F., M.R., A.G., S.C., F.G., C.L., D.O., G.M., G.P.); Laboratorio de Fisiologia Comparada, Departamento de Ciencias Biológicas y Fisiológicas, Universidad Peruana Cayetano Heredia, Lima, Peru (F.C.V., C.A.-R., J.L.M., L.L., J.M.S.); Department of Health Sciences, Università di Milano-Bicocca, Milan, Italy (S.C., G.M., G.P.); Heart Failure Unit, Centro Cardiologico Monzino, IRCCS,
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