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Garland J, Tse R, Ondruschka B, Bardsley EN, Wong CX, Stables S, Paton JF. Stellate ganglionitis and sudden cardiac death. Pathology 2022. [DOI: 10.1016/j.pathol.2021.12.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Samora M, Vianna LC, Carmo JC, Macedo V, Dawes M, Phillips AA, Paton JF, Fisher JP. Neurovascular Coupling is Not Attenuated During Reflex‐Mediated Sympathetic Activation via Lower Body Negative Pressure in Humans. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.04869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
Background and Purpose—
Over 80% of ischemic stroke patients show an abrupt increase in arterial blood pressure in the hours and days following ischemic stroke. Whether this poststroke hypertension is beneficial or harmful remains controversial and the underlying physiological basis is unclear.
Methods—
To investigate the dynamic cardiovascular response to stroke, adult Wistar rats (n=5–8 per group, 393±34 g) were instrumented with telemeters to blood pressure, intracranial pressure, renal sympathetic nerve activity, and brain tissue oxygen in the predicted penumbra (P
o
2
). After 2 weeks of recovery, cardiovascular signals were recorded for a 3-day baseline period, then ischemic stroke was induced via transient middle cerebral artery occlusion, or sham surgery. Cardiovascular signals were then recorded for a further 10 days, and the functional sensorimotor recovery assessed using the cylinder and sticky dot tests.
Results—
Baseline values of all variables were similar between groups. Compared to sham, in the 2 days following stroke middle cerebral artery occlusion produced an immediate, transient rise above baseline in mean blood pressure (21±3 versus 2±4 mm Hg;
P
<0.001), renal sympathetic nerve activity (54±11% versus 7±4%;
P
=0.006), and cerebral perfusion pressure (12±5 versus 1±4;
P
≤0.001). Intracranial pressure increased more slowly, peaking 3 days after middle cerebral artery occlusion (14±6 versus −1±1 mm Hg;
P
<0.001). Treating with the antihypertensive agent nifedipine after stroke (1.5–0.75 mg/kg per hour SC) ameliorated poststroke hypertension (12±3 mm Hg on day 1;
P
=0.041), abolished the intracranial pressure increase (3±1;
P
<0.001) and reduced cerebral perfusion pressure (10±3 mm Hg;
P
=0.017). Preventing poststroke hypertension affected neither the recovery of sensorimotor function nor infarct size.
Conclusions—
These findings suggest that poststroke hypertension is immediate, temporally matched to an increase in sympathetic outflow, and elevates cerebral perfusion pressure for several days after stroke, which may enhance cerebral perfusion. Preventing poststroke hypertension does not appear to worsen prognosis after stroke in young, normotensive, and otherwise healthy rats.
Visual Overview—
An online
visual overview
is available for this article.
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Affiliation(s)
- Pratik Thakkar
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
| | - Ailsa McGregor
- School of Pharmacy, University of Otago, Dunedin, New Zealand (A.M.)
| | - Paul Alan Barber
- Centre for Brain Research (P.A.B.), School of Medical Sciences, University of Auckland, New Zealand
| | - Julian F.R. Paton
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
| | - Carolyn Barrett
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
| | - Fiona McBryde
- From the Department of Physiology (P.T., J.F.R.P., C.B., F.M.), School of Medical Sciences, University of Auckland, New Zealand
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Kiuchi MG, Esler MD, Fink GD, Osborn JW, Banek CT, Böhm M, Denton KM, DiBona GF, Everett TH, Grassi G, Katholi RE, Knuepfer MM, Kopp UC, Lefer DJ, Lohmeier TE, May CN, Mahfoud F, Paton JF, Schmieder RE, Pellegrino PR, Sharabi Y, Schlaich MP. Renal Denervation Update From the International Sympathetic Nervous System Summit. J Am Coll Cardiol 2019; 73:3006-3017. [DOI: 10.1016/j.jacc.2019.04.015] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/10/2019] [Accepted: 04/15/2019] [Indexed: 12/14/2022]
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Chant B, Bakali M, Hinton T, Burchell AE, Nightingale AK, Paton JF, Hart EC. Antihypertensive Treatment Fails to Control Blood Pressure During Exercise. Hypertension 2018; 72:102-109. [DOI: 10.1161/hypertensionaha.118.11076] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 03/03/2018] [Accepted: 04/06/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Benjamin Chant
- From the Bristol Heart Institute (BHI) CardioNomics Research Group, Clinical Research and Imaging Centre, School of Physiology, Pharmacology, Neuroscience (B.C., M.B., T.H., J.F.R.P., E.C.H.)
| | - Majda Bakali
- From the Bristol Heart Institute (BHI) CardioNomics Research Group, Clinical Research and Imaging Centre, School of Physiology, Pharmacology, Neuroscience (B.C., M.B., T.H., J.F.R.P., E.C.H.)
| | - Thomas Hinton
- From the Bristol Heart Institute (BHI) CardioNomics Research Group, Clinical Research and Imaging Centre, School of Physiology, Pharmacology, Neuroscience (B.C., M.B., T.H., J.F.R.P., E.C.H.)
| | - Amy E. Burchell
- Department of Cardiology, Bristol Heart Institute, University Hospitals Bristol National Health Service (NHS) Foundation Trust, United Kingdom (A.E.B., A.K.N.)
| | - Angus K. Nightingale
- Bristol Medical School, Translational Health Sciences (A.K.N.), University of Bristol, United Kingdom
- Department of Cardiology, Bristol Heart Institute, University Hospitals Bristol National Health Service (NHS) Foundation Trust, United Kingdom (A.E.B., A.K.N.)
| | - Julian F.R. Paton
- From the Bristol Heart Institute (BHI) CardioNomics Research Group, Clinical Research and Imaging Centre, School of Physiology, Pharmacology, Neuroscience (B.C., M.B., T.H., J.F.R.P., E.C.H.)
- Department of Physiology, University of Auckland, Grafton, New Zealand (J.F.R.P.)
| | - Emma C. Hart
- From the Bristol Heart Institute (BHI) CardioNomics Research Group, Clinical Research and Imaging Centre, School of Physiology, Pharmacology, Neuroscience (B.C., M.B., T.H., J.F.R.P., E.C.H.)
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McBryde FD, Hart EC, Ramchandra R, Paton JF. Evaluating the carotid bodies and renal nerves as therapeutic targets for hypertension. Auton Neurosci 2017; 204:126-130. [DOI: 10.1016/j.autneu.2016.08.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 07/28/2016] [Accepted: 08/01/2016] [Indexed: 11/30/2022]
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Farmer DG, Dutschmann M, Paton JF, Pickering AE, McAllen RM. Brainstem sources of cardiac vagal tone and respiratory sinus arrhythmia. J Physiol 2016; 594:7249-7265. [PMID: 27654879 PMCID: PMC5157093 DOI: 10.1113/jp273164] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 09/16/2016] [Indexed: 11/08/2022] Open
Abstract
KEY POINTS Cardiac vagal tone is a strong predictor of health, although its central origins are unknown. Respiratory-linked fluctuations in cardiac vagal tone give rise to respiratory sinus arryhthmia (RSA), with maximum tone in the post-inspiratory phase of respiration. In the present study, we investigated whether respiratory modulation of cardiac vagal tone is intrinsically linked to post-inspiratory respiratory control using the unanaesthetized working heart-brainstem preparation of the rat. Abolition of post-inspiration, achieved by inhibition of the pontine Kolliker-Fuse nucleus, removed post-inspiratory peaks in efferent cardiac vagal activity and suppressed RSA, whereas substantial cardiac vagal tone persisted. After transection of the caudal pons, part of the remaining tone was removed by inhibition of nucleus of the solitary tract. We conclude that cardiac vagal tone depends upon at least 3 sites of the pontomedullary brainstem and that a significant proportion arises independently of RSA. ABSTRACT Cardiac vagal tone is a strong predictor of health, although its central origins are unknown. The rat working heart-brainstem preparation shows strong cardiac vagal tone and pronounced respiratory sinus arrhythmia. In this preparation, recordings from the cut left cardiac vagal branch showed efferent activity that peaked in post-inspiration, ∼0.5 s before the cyclic minimum in heart rate (HR). We hypothesized that respiratory modulation of cardiac vagal tone and HR is intrinsically linked to the generation of post-inspiration. Neurons in the pontine Kölliker-Fuse nucleus (KF) were inhibited with bilateral microinjections of isoguvacine (50-70 nl, 10 mm) to remove the post-inspiratory phase of respiration. This also abolished the post-inspiratory peak of cardiac vagal discharge (and cyclical HR modulation), although a substantial level of activity remained. In separate preparations with intact cardiac vagal branches but sympathetically denervated by thoracic spinal pithing, cardiac chronotropic vagal tone was quantified by HR compared to its final level after systemic atropine (0.5 μm). Bilateral KF inhibition removed 88% of the cyclical fluctuation in HR but, on average, only 52% of the chronotropic vagal tone. Substantial chronotropic vagal tone also remained after transection of the brainstem through the caudal pons. Subsequent bilateral isoguvacine injections into the nucleus of the solitary tract further reduced vagal tone: remaining sources were untraced. We conclude that cardiac vagal tone depends on neurons in at least three sites of the pontomedullary brainstem, and much of it arises independently of respiratory sinus arrhythmia.
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Affiliation(s)
- David G.S. Farmer
- Florey Institute of Neuroscience and Mental HealthUniversity of MelbourneVictoriaAustralia
| | - Mathias Dutschmann
- Florey Institute of Neuroscience and Mental HealthUniversity of MelbourneVictoriaAustralia
| | - Julian F.R. Paton
- School of PhysiologyPharmacology & NeuroscienceBiomedical SciencesUniversity of BristolBristolUK
| | - Anthony E. Pickering
- School of PhysiologyPharmacology & NeuroscienceBiomedical SciencesUniversity of BristolBristolUK
| | - Robin M. McAllen
- Florey Institute of Neuroscience and Mental HealthUniversity of MelbourneVictoriaAustralia
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Warnert EA, Rodrigues JC, Burchell AE, Neumann S, Ratcliffe LE, Manghat NE, Harris AD, Adams Z, Nightingale AK, Wise RG, Paton JF, Hart EC. Is High Blood Pressure Self-Protection for the Brain? Circ Res 2016; 119:e140-e151. [DOI: 10.1161/circresaha.116.309493] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Revised: 09/22/2016] [Accepted: 09/26/2016] [Indexed: 12/19/2022]
Abstract
Rationale:
Data from animal models of hypertension indicate that high blood pressure may develop as a vital mechanism to maintain adequate blood flow to the brain. We propose that congenital vascular variants of the posterior cerebral circulation and cerebral hypoperfusion could partially explain the pathogenesis of essential hypertension, which remains enigmatic in 95% of patients.
Objective:
To evaluate the role of the cerebral circulation in the pathophysiology of hypertension.
Methods and Results:
We completed a series of retrospective and mechanistic case-control magnetic resonance imaging and physiological studies in normotensive and hypertensive humans (n=259). Interestingly, in humans with hypertension, we report a higher prevalence of congenital cerebrovascular variants; vertebral artery hypoplasia, and an incomplete posterior circle of Willis, which were coupled with increased cerebral vascular resistance, reduced cerebral blood flow, and a higher incidence of lacunar type infarcts. Causally, cerebral vascular resistance was elevated before the onset of hypertension and elevated sympathetic nerve activity (n=126). Interestingly, untreated hypertensive patients (n=20) had a cerebral blood flow similar to age-matched controls (n=28). However, participants receiving antihypertensive therapy (with blood pressure controlled below target levels) had reduced cerebral perfusion (n=19). Finally, elevated cerebral vascular resistance was a predictor of hypertension, suggesting that it may be a novel prognostic or diagnostic marker (n=126).
Conclusions:
Our data indicate that congenital cerebrovascular variants in the posterior circulation and the associated cerebral hypoperfusion may be a factor in triggering hypertension. Therefore, lowering blood pressure may worsen cerebral perfusion in susceptible individuals.
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Affiliation(s)
- Esther A.H. Warnert
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Jonathan C.L. Rodrigues
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Amy E. Burchell
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Sandra Neumann
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Laura E.K. Ratcliffe
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Nathan E. Manghat
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Ashley D. Harris
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Zoe Adams
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Angus K. Nightingale
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Richard G. Wise
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Julian F.R. Paton
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
| | - Emma C. Hart
- From the Cardiff University Brain Research Imaging Centre, School of Psychology, Cardiff University, United Kingdom (E.A.H.W., R.G.W.); CardioNomics Research Group, Clinical Research and Imaging Centre (J.C.L.R., A.E.B., S.N., L.E.K.R., N.E.M., A.K.N., J.F.R.P., E.C.H.) and School of Physiology, Pharmacology, and Neuroscience, Biomedical Sciences (J.C.L.R., S.N., L.E.K.R., Z.A., J.F.R.P., E.C.H.), University of Bristol, United Kingdom; University Hospitals Bristol NHS Foundation Trust, United
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Niewinski P, Janczak D, Rucinski A, Tubek S, Engelman ZJ, Piesiak P, Jazwiec P, Banasiak W, Fudim M, Sobotka PA, Javaheri S, Hart EC, Paton JF, Ponikowski P. Carotid body resection for sympathetic modulation in systolic heart failure: results from first-in-man study. Eur J Heart Fail 2016; 19:391-400. [DOI: 10.1002/ejhf.641] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 07/10/2016] [Accepted: 07/25/2016] [Indexed: 12/30/2022] Open
Affiliation(s)
- Piotr Niewinski
- Department of Cardiology, Centre for Heart Disease; 4th Military Hospital; Wroclaw Poland
| | - Dariusz Janczak
- Department of Vascular Surgery; 4th Military Hospital; Wroclaw Poland
| | - Artur Rucinski
- Department of Vascular Surgery; 4th Military Hospital; Wroclaw Poland
| | - Stanislaw Tubek
- Department of Cardiology, Centre for Heart Disease; 4th Military Hospital; Wroclaw Poland
- Department of Heart Diseases, Faculty of Health Sciences; Wroclaw Medical University; Wroclaw Poland
| | | | - Pawel Piesiak
- Department of Pulmonology and Lung Cancer; Medical University; Wroclaw Poland
| | - Przemyslaw Jazwiec
- Department of Radiology and Diagnostics Imaging; 4th Military Hospital; Wroclaw Poland
| | - Waldemar Banasiak
- Department of Cardiology, Centre for Heart Disease; 4th Military Hospital; Wroclaw Poland
| | - Marat Fudim
- Department of Cardiology; Duke University School of Medicine; Durham NC USA
| | - Paul A. Sobotka
- Cibiem Inc.; Los Altos CA USA
- The Ohio State University; Columbus OH USA
| | - Shahrokh Javaheri
- Bethesda North Hospital; Cincinnati OH USA
- University of Cincinnati; Cincinnati OH USA
| | - Emma C.J. Hart
- School of Physiology and Pharmacology, Clinical Research & Imaging Centre; University of Bristol; Bristol UK
| | - Julian F.R. Paton
- School of Physiology and Pharmacology, Clinical Research & Imaging Centre; University of Bristol; Bristol UK
| | - Piotr Ponikowski
- Department of Cardiology, Centre for Heart Disease; 4th Military Hospital; Wroclaw Poland
- Department of Heart Diseases, Faculty of Health Sciences; Wroclaw Medical University; Wroclaw Poland
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Erdei T, Rodrigues JC, McIntyre B, Dastidar AG, Burchell AE, Ratcliffe L, Hart EC, Paton JF, Hamilton M, Nightingale AK, Manghat NE. 8 Diagnostic performance of ECG detection of left atrial enlargement in patients with arterial hypertension relative to the cardiac magnetic resonance gold-standard: Impact of obesity: Abstract 8 Table 1. Heart 2016. [DOI: 10.1136/heartjnl-2016-309668.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Biglino G, Burchell A, Rodrigues J, Gray RD, Hart EC, Paton JF, Manghat NE, Baumbach A, Nightingale AK. 13.8 VENTRICULO-VASCULAR INTERACTIONS AND THE ARTERIAL WINDKESSEL: NEW INSIGHTS FROM CARDIOVASCULAR MAGNETIC RESONANCE IMAGING BEFORE AND AFTER RENAL DENERVATION. Artery Res 2016. [DOI: 10.1016/j.artres.2016.10.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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13
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Geraldes V, Goncalves-Rosa N, Liu B, Paton JF, Rocha I. Essential role of RVL medullary neuronal activity in the long term maintenance of hypertension in conscious SHR. Auton Neurosci 2014; 186:22-31. [DOI: 10.1016/j.autneu.2014.09.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 08/14/2014] [Accepted: 09/05/2014] [Indexed: 02/07/2023]
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Affiliation(s)
- Amy E. Burchell
- From the CardioNomics Research Group, Clinical Research & Imaging Centre-Bristol, Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust (A.E.B., J.F.R.P.) and School of Clinical Sciences (A.E.B.), University of Bristol, UK; William Harvey Heart Centre, NIHR Cardiovascular Biomedical Research Unit, Centre for Clinical Pharmacology, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK (M.D.L.); Barts Hypertension Clinic, Department of
| | - Melvin D. Lobo
- From the CardioNomics Research Group, Clinical Research & Imaging Centre-Bristol, Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust (A.E.B., J.F.R.P.) and School of Clinical Sciences (A.E.B.), University of Bristol, UK; William Harvey Heart Centre, NIHR Cardiovascular Biomedical Research Unit, Centre for Clinical Pharmacology, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK (M.D.L.); Barts Hypertension Clinic, Department of
| | - Neil Sulke
- From the CardioNomics Research Group, Clinical Research & Imaging Centre-Bristol, Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust (A.E.B., J.F.R.P.) and School of Clinical Sciences (A.E.B.), University of Bristol, UK; William Harvey Heart Centre, NIHR Cardiovascular Biomedical Research Unit, Centre for Clinical Pharmacology, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK (M.D.L.); Barts Hypertension Clinic, Department of
| | - Paul A. Sobotka
- From the CardioNomics Research Group, Clinical Research & Imaging Centre-Bristol, Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust (A.E.B., J.F.R.P.) and School of Clinical Sciences (A.E.B.), University of Bristol, UK; William Harvey Heart Centre, NIHR Cardiovascular Biomedical Research Unit, Centre for Clinical Pharmacology, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK (M.D.L.); Barts Hypertension Clinic, Department of
| | - Julian F.R. Paton
- From the CardioNomics Research Group, Clinical Research & Imaging Centre-Bristol, Bristol Heart Institute, University Hospitals Bristol NHS Foundation Trust (A.E.B., J.F.R.P.) and School of Clinical Sciences (A.E.B.), University of Bristol, UK; William Harvey Heart Centre, NIHR Cardiovascular Biomedical Research Unit, Centre for Clinical Pharmacology, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, UK (M.D.L.); Barts Hypertension Clinic, Department of
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Affiliation(s)
- Piotr Niewinski
- Department of Cardiology; Centre for Heart Diseases; 4 Military Hospital 50-981 Wroclaw Poland
| | - Stanislaw Tubek
- Department of Cardiology; Centre for Heart Diseases; 4 Military Hospital 50-981 Wroclaw Poland
| | - Waldemar Banasiak
- Department of Cardiology; Centre for Heart Diseases; 4 Military Hospital 50-981 Wroclaw Poland
| | - Julian F.R. Paton
- School of Physiology and Pharmacology; Bristol Heart Institute; University of Bristol; Bristol BS8 1TD UK
| | - Piotr Ponikowski
- Department of Cardiology; Centre for Heart Diseases; 4 Military Hospital 50-981 Wroclaw Poland
- Department of Cardiology; Faculty of Health Sciences; Medical University; 50-981 Wroclaw Poland
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16
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Baumbach A, Burchell AE, Hart EC, Nightingale AK, Paton JF. Normal range sympathetic tone in resistant hypertension associated with blood pressure increase following renal denervation in a pre-menopausal woman. Int J Cardiol 2013; 167:e190-1. [DOI: 10.1016/j.ijcard.2013.04.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 04/06/2013] [Indexed: 11/29/2022]
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17
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18
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Shantsila A, McIntyre DB, Lip GY, Paton JF, Fadel PJ, Pickering AE, Fisher JP. Influence of age on respiratory modulation of muscle sympathetic nerve activity and blood pressure in humans. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1118.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alena Shantsila
- Sport & Exercise SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - David B McIntyre
- Sport & Exercise SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - Gregory Y.H. Lip
- University of Birmingham Centre for Cardiovascular SciencesCity HospitalBirminghamUnited Kingdom
| | - Julian F.R. Paton
- School of Physiology & PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Paul J Fadel
- Medical Pharmacology & PhysiologyUniversity of MissouriColombiaMO
| | - Anthony E Pickering
- School of Physiology & PharmacologyUniversity of BristolBristolUnited Kingdom
| | - James P Fisher
- Sport & Exercise SciencesUniversity of BirminghamBirminghamUnited Kingdom
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19
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Adlan AM, Kitas G, Paton JF, Lip GY, Fisher JP. Rheumatoid Arthritis and Arterial Baroreflex Function. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.1118.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ahmed M Adlan
- Sport & Exercise SciencesUniversity of BirminghamBirminghamUnited Kingdom
| | - George Kitas
- Clinical Research UnitRussells Hall HospitalDudleyUnited Kingdom
| | | | - Gregory Y.H. Lip
- Centre for Cardiovascular SciencesCity HospitalBirminghamUnited Kingdom
| | - James P Fisher
- Sport & Exercise SciencesUniversity of BirminghamBirminghamUnited Kingdom
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20
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Marvar PJ, McBryde FD, Paton JF. Effects of anti‐hypertensive interventions on the inflammatory response in the spontaneously hypertensive rat. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.905.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Paul J Marvar
- Department of Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Fiona D McBryde
- Department of Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Julian F.R. Paton
- Department of Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
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21
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Ben-Tal A, Shamailov SS, Paton JF. A theoretical study of the physiological significance of respiratory sinus arrhythmia. FASEB J 2012. [DOI: 10.1096/fasebj.26.1_supplement.702.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alona Ben-Tal
- Institute of Information and Mathematical SciencesMassey UniversityAucklandNew Zealand
| | | | - Julian F.R. Paton
- School of Physiology & PharmacologyUniversity of BristolBristolUnited Kingdom
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22
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Kenny D, Polson JW, Martin RP, Caputo M, Wilson DG, Cockcroft JR, Paton JF, Wolf AR. Relationship of aortic pulse wave velocity and baroreceptor reflex sensitivity to blood pressure control in patients with repaired coarctation of the aorta. Am Heart J 2011; 162:398-404. [PMID: 21835303 DOI: 10.1016/j.ahj.2011.03.029] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Accepted: 03/21/2011] [Indexed: 10/18/2022]
Abstract
BACKGROUND Increased aortic stiffness and reduced baroreceptor reflex sensitivity have been described independently after coarctation of the aorta (CoA) repair. This study sought to determine the relationship between these variables and blood pressure control in adolescents after early CoA repair. METHODS Spontaneous baroreceptor reflex sensitivity (sBRS) and aortic pulse wave velocity (PWV) were measured in 29 adolescents after CoA repair and compared with 20 age-matched controls. Patients treated for hypertension or having residual aortic narrowing were excluded. Ambulatory blood pressure (ABP), heart rate variability, and cardiac output were also recorded. After ABP measurement, CoA subjects were classified as normotensive or hypertensive. RESULTS Nine patients (31%) were hypertensive according to standard definitions, and this subgroup had higher aortic PWV than the normotensive subgroup (P = .004). There was a significant positive correlation between ABP and PWV seen in the whole CoA group (r(2) = 0.5, P < .01). The normotensive subgroup had increased sBRS compared with controls (P = .02). This difference was not seen between the hypertensive subgroup and controls. There was a significant inverse relationship between sBRS and aortic PWV in the whole CoA group (r(2) = 0.25, P = .01). The normotensive subgroup had a significant reduction in stroke index compared with controls (P = .02), which was not seen in the hypertensive subgroup (P = .96). CONCLUSIONS Adolescents with hypertension after CoA repair have increased aortic PWV and a relative reduction in sBRS compared with normotensive CoA patients. Thus, failure of the baroreceptor reflex to compensate for increasing arterial stiffness may herald the onset of hypertension in these patients.
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23
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Borgmann A, Abdala AP, Zhang R, Rybak IA, Paton JF, Smith JC. Spiking behavior and membrane potential trajectories of pre‐BötC and hypoglossal neurons recorded from the rat in situ. FASEB J 2011. [DOI: 10.1096/fasebj.25.1_supplement.1074.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ana P.L. Abdala
- Department of Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | | | - Ilya A. Rybak
- Department of Neurobiology and AnatomyDrexel University College of MedicinePhiladelphiaPA
| | - Julian F.R. Paton
- Department of Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
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24
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Zoccal DB, Molkov YI, Moraes DJ, Machado BH, Paton JF, Rybak IA. Modeling the effect of changes in central respiratory‐sympathetic coupling on the sympathetic nerve activity after chronic intermittent hypoxia. FASEB J 2011. [DOI: 10.1096/fasebj.25.1_supplement.1076.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Daniel B. Zoccal
- Department of Physiological SciencesCenter of Biological SciencesUniversity of Santa CatarinaFlorianopolisBrazil
| | - Yaroslav I. Molkov
- Department of Neurobiology and AnatomyDrexel University College of MedicinePhiladelphiaPA
| | - Davi J.A. Moraes
- Department of PhysiologySchool of Medicine of Ribeirao PretoUniversity of Sao PauloRibeirao PretoBrazil
| | - Benedito H. Machado
- Department of PhysiologySchool of Medicine of Ribeirao PretoUniversity of Sao PauloRibeirao PretoBrazil
| | - Julian F.R. Paton
- Department of Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Ilya A. Rybak
- Department of Neurobiology and AnatomyDrexel University College of MedicinePhiladelphiaPA
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25
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Kenny D, Polson JW, Martin RP, Wilson DG, Caputo M, Cockcroft JR, Paton JF, Wolf AR. Surgical Approach for Aortic Coarctation Influences Arterial Compliance and Blood Pressure Control. Ann Thorac Surg 2010; 90:600-4. [DOI: 10.1016/j.athoracsur.2010.04.098] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 04/27/2010] [Accepted: 04/27/2010] [Indexed: 01/22/2023]
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26
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Baquero AMA, Kränkel N, Whitaker J, Dewhurst M, Maddedu P, Paton JF. Structural integration and cardiovascular effects following transplantation of endothelial progenitor cells (EPCs) into the brainstem of rats. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.624.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Nicolle Kränkel
- Bristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | - John Whitaker
- Bristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | | | - Paolo Maddedu
- Bristol Heart InstituteUniversity of BristolBristolUnited Kingdom
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27
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Abdala APL, Dutschmann M, Bissonnette JM, Paton JF. Suppression of expiratory activity in a mouse model of Rett Syndrome follows blockade of GABA reuptake and activation of serotonin type 1a receptors. FASEB J 2010. [DOI: 10.1096/fasebj.24.1_supplement.613.9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ana Paula Lima Abdala
- Physiology & PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | - Mathias Dutschmann
- Institute of Membrane and Systems BiologyUniversity of LeedsLeedsUnited Kingdom
| | | | - Julian F.R. Paton
- Physiology & PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
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28
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Kenny D, Polson JW, Martin RP, Paton JF, Wolf AR. Normalization of Autonomic Function in Children With Coarctation of the Aorta After Surgical Correction in Infancy. Hypertension 2009; 54:e21-2. [DOI: 10.1161/hypertensionaha.109.136481] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Damien Kenny
- Bristol Congenital Heart Center, Bristol Royal Hospital for Children, Bristol, United Kingdom
| | - Jaimie W. Polson
- Department of Physiology and Pharmacology, University of Bristol, Bristol, United Kingdom
| | - Robin P. Martin
- Bristol Congenital Heart Center, Bristol Royal Hospital for Children, Bristol, United Kingdom
| | - Julian F.R. Paton
- Department of Physiology and Pharmacology, University of Bristol, Bristol, United Kingdom
| | - Andrew R. Wolf
- Department of Anesthesia, Bristol Royal Hospital for Children, Bristol, United Kingdom
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29
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Dick TE, Baekey DM, Paton JF, Lindsey BG, Morris KF. Cardio-respiratory coupling depends on the pons. Respir Physiol Neurobiol 2009; 168:76-85. [DOI: 10.1016/j.resp.2009.07.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2009] [Revised: 07/09/2009] [Accepted: 07/10/2009] [Indexed: 10/20/2022]
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30
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Guo F, Souslova E, Chudakov D, Paton JF, Kasparov S. Cellular substrates for angiotensin1‐7 (Ang1‐7) action in the rostral ventro‐lateral medulla (RVLM) of the normotentsive and spontaneously hypertensive rat (SHR). FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.958.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fang Guo
- PharmacologyHebei Medical UniversityHebeiPeople's Republic of China
| | - Ekaterina Souslova
- Shemiakin‐Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Dmitry Chudakov
- Shemiakin‐Ovchinnikov Institute of Bioorganic ChemistryMoscowRussian Federation
| | - Julian F.R. Paton
- Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Sergey Kasparov
- Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
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31
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Colombari DSA, Milosavljevic S, Colombari E, Japundzic‐Zigon N, Paton JF, Murphy D. Hypotensive action of adrenomedullin (ADM) receptor blockade in the rostral ventrolateral medulla of spontaneously hypertensive rats. FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.1008.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Eduardo Colombari
- Department of Physiology & PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | | | - Julian F.R. Paton
- Department of Physiology & PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | - David Murphy
- Henry Wellcome Laboratories for Integrative Neuroscience and Endocrinology
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32
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Abdala APL, Rybak IA, Smith JC, Paton JF. Hypercapnia engages parafacial respiratory group (pFRG) neuronal activity coincident with late expiratory motor outflow. FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.621.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ana Paula Lima Abdala
- Physiology & PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | - Ilya A Rybak
- Neurobiology and AnatomyDrexel University College of MedicinePhiladelphiaPA
| | - Jeffrey C Smith
- Cellular and Systems Neurobiology SectionLaboratory of Neural Control, NINDSBethesdaMD
| | - Julian F.R. Paton
- Physiology & PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
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33
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Toward MA, Kasparov S, Paton JF. Autonomic cardiovascular responses to chronic infusions of angiotensin II (ANGII) in wistar kyoto rats (WKY). FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.1017.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marie Ann Toward
- Department of Physiology and PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | - Sergey Kasparov
- Department of Physiology and PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | - Julian F.R. Paton
- Department of Physiology and PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
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34
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Pickering AE, Simms AE, Paton JF. Dominant role of aortic baroreceptors in the cardiac baroreflex of the rat in situ. Auton Neurosci 2008; 142:32-9. [DOI: 10.1016/j.autneu.2008.03.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Revised: 03/25/2008] [Accepted: 03/26/2008] [Indexed: 10/22/2022]
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35
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Toward MA, Heesom KJ, Kasparov S, Paton JF. Proteomic analysis of brainstem micro vessels in angiotensin II induced hypertension. FASEB J 2008. [DOI: 10.1096/fasebj.22.1_supplement.968.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Kate J. Heesom
- Department of BiochemistryProteomics FacilityUniversity of BristolBristolUnited Kingdom
| | - Sergey Kasparov
- Department of Physiology and PhamacologyBristol Heart Institute
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36
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Abdala APL, Rybak IA, Smith JC, Paton JF. Thinking outside the BötC (Bötzinger complex): possible brainstem origins of abdominal (AB) expiratory activity in the rat
in situ. FASEB J 2008. [DOI: 10.1096/fasebj.22.1_supplement.755.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ana Paula Lima Abdala
- Department of Physiology and PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
| | - Ilya A Rybak
- Department of Neurobiology & AnatomyDrexel University College of MedicinePhiladelphiaPA
| | - Jeffrey C Smith
- Cellular and Systems Neurobiology SectionLaboratory of Neural ControlNINDSNIHBethesdaMD
| | - Julian F.R. Paton
- Department of Physiology and PharmacologyBristol Heart InstituteUniversity of BristolBristolUnited Kingdom
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37
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Zubcevic J, Polson JW, Kasparov S, Diez‐Freire CC, Raizada MK, Paton JF. Role of phosphoinositide‐3‐kinase (PI3K) in the nucleus of the solitary tract (NTS) in the modulation of baroreceptor reflex function in the hypertensive rat. FASEB J 2008. [DOI: 10.1096/fasebj.22.1_supplement.737.34] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jasenka Zubcevic
- Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Jaimie W Polson
- Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Sergey Kasparov
- Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
| | - Carlos C Diez‐Freire
- Department of Physiology and Functional GenomicsUniversity of FloridaGainesvilleFL
| | - Mohan K Raizada
- Department of Physiology and Functional GenomicsUniversity of FloridaGainesvilleFL
| | - Julian F.R. Paton
- Physiology and PharmacologyUniversity of BristolBristolUnited Kingdom
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38
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Polson JW, Paton JF, Wolf AR. Altered autonomic function in programmed hypertension following gestational administration of glucocorticoid. Auton Neurosci 2007. [DOI: 10.1016/j.autneu.2007.06.258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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39
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Pickering AE, Stalbovskiy AO, Paton JF. Respiratory modulation of sympathetic preganglionic neuronal activity in neonatal rats. Auton Neurosci 2007. [DOI: 10.1016/j.autneu.2007.06.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Teschemacher AG, Wang S, Paton JF, Kasparov S. Catecholaminergic neurones in the brainstem of normo- and hypertensive rats: Sensitivity to angiotensin II in vitro. Auton Neurosci 2007. [DOI: 10.1016/j.autneu.2007.06.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Waki H, Gouraud S, Maeda M, Paton JF. Altered arachidonic acid–leukotriene B4 metabolic system in the NTS of SHR may be pro-hypertensive. Auton Neurosci 2007. [DOI: 10.1016/j.autneu.2007.06.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Waki H, Paton JF. Response to Junctional Adhesion Molecule-1 May Have a Wider Role in Cardiovascular Disease. Hypertension 2007. [DOI: 10.1161/hypertensionaha.107.093195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Hidefumi Waki
- Department of Physiology, Bristol Heart Institute, School of Medical Sciences, University of Bristol, Bristol, United Kingdom
| | - Julian F.R. Paton
- Department of Physiology, Bristol Heart Institute, School of Medical Sciences, University of Bristol, Bristol, United Kingdom
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43
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Abdala APL, Koizumi H, Rybak IA, Smith JC, Paton JF. The 3‐2‐1 state respiratory rhythm generator hypothesis revealed by microsectioning, reduced extracellular chloride and alterations in arterial gas tensions in the in situ rat. FASEB J 2007. [DOI: 10.1096/fasebj.21.5.a557-e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Jeffrey C. Smith
- Laboratory of Neural Control, NINDS, NIHCellular and Systems Neurobiology SectionBethesdaMD20892‐3700
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44
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Zubcevic J, Kasparov S, Raizada MK, Paton JF. Chronic inhibition of phosphoinositide‐3‐kinase (PI3K) in the nucleus of the solitary tract (NTS) of hypertensive rats increases blood pressure. FASEB J 2007. [DOI: 10.1096/fasebj.21.6.a899-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jasenka Zubcevic
- PhysiologyUniversity of BristolBristol Heart InstituteUniversity Walk, Bristol, BS81TDUnited Kingdom
| | - Sergey Kasparov
- PhysiologyUniversity of BristolBristol Heart InstituteUniversity Walk, Bristol, BS81TDUnited Kingdom
| | - Mohan K Raizada
- Department of Physiology and Functional GenomicsUniversity of FloridaMcKnight Brain Institute100 S. Newell DriveGainsvilleFLFL 32611
| | - Julian F.R. Paton
- PhysiologyUniversity of BristolBristol Heart InstituteUniversity Walk, Bristol, BS81TDUnited Kingdom
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45
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Toward MA, Hindmarch C, Murphy D, Kasparov S, Paton JF. Microarray analysis of brainstem micro vessels in an animal model genetically predisposed to hypertension. FASEB J 2007. [DOI: 10.1096/fasebj.21.6.a1411-b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Marie Ann Toward
- Department of PhysiologyBristol Heart InstituteUniversity of BristolMedical Sciences Building, University WalkBristolBS8 1TDUnited Kingdom
| | - Charles Hindmarch
- The Henry Wellcome Laboratories for Integrative Neuroscience and EndocrinologyUniversity of BristolDorothy Hodgkin Building, Whitson StreetBristolBS1 3NYUnited Kingdom
| | - David Murphy
- The Henry Wellcome Laboratories for Integrative Neuroscience and EndocrinologyUniversity of BristolDorothy Hodgkin Building, Whitson StreetBristolBS1 3NYUnited Kingdom
| | - Sergey Kasparov
- Department of PhysiologyBristol Heart InstituteUniversity of BristolMedical Sciences Building, University WalkBristolBS8 1TDUnited Kingdom
| | - Julian F.R. Paton
- Department of PhysiologyBristol Heart InstituteUniversity of BristolMedical Sciences Building, University WalkBristolBS8 1TDUnited Kingdom
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46
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Waki H, Gouraud S, Maeda M, Paton JF. Gene expression profile of inflammatory molecules in the nucleus tractus solitarii of the spontaneously hypertensive rat (SHR). Neurosci Res 2007. [DOI: 10.1016/j.neures.2007.06.1174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Qiu J, Gouraud SS, Yao S, Paton JF, Murphy D. Protein‐DNA Array‐based identification of transcription factor activities following dehydration in the hypothalomo‐neurohypophyseal system. FASEB J 2006. [DOI: 10.1096/fasebj.20.4.a354-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jing Qiu
- University of BristolDorothy Hodgkin Building, Whitson StreetBristolBS1 3NYUnited Kingdom
| | - Sabine Sandra Gouraud
- University of BristolDorothy Hodgkin Building, Whitson StreetBristolBS1 3NYUnited Kingdom
| | - Song Yao
- University of BristolDorothy Hodgkin Building, Whitson StreetBristolBS1 3NYUnited Kingdom
| | - Julian F.R. Paton
- University of BristolDorothy Hodgkin Building, Whitson StreetBristolBS1 3NYUnited Kingdom
| | - David Murphy
- University of BristolDorothy Hodgkin Building, Whitson StreetBristolBS1 3NYUnited Kingdom
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Braga VA, Soriano RN, de Oliveira M, Antunes VR, Paton JF, Machado BH. Significant contribution from the thoracic spinal cord in mediating ischaemia induced sympatho‐excitation. FASEB J 2006. [DOI: 10.1096/fasebj.20.4.a775-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Valdir A. Braga
- Dept. PhysiologySchool of Medicine of Ribeirγo PretoUniversity of Sγo PauloRibeirγo Preto14049‐900Brazil
| | - Renato N. Soriano
- Dept. PhysiologySchool of Medicine of Ribeirγo PretoUniversity of Sγo PauloRibeirγo Preto14049‐900Brazil
| | - Mauro de Oliveira
- Dept. PhysiologySchool of Medicine of Ribeirγo PretoUniversity of Sγo PauloRibeirγo Preto14049‐900Brazil
| | - Vagner R. Antunes
- Dept. PhysiologySchool of Medical SciencesUniversity of BristolBristolBS8 1TDUnited Kingdom
| | - Julian F.R. Paton
- Dept. PhysiologySchool of Medical SciencesUniversity of BristolBristolBS8 1TDUnited Kingdom
| | - Benedito H. Machado
- Dept. PhysiologySchool of Medicine of Ribeirγo PretoUniversity of Sγo PauloRibeirγo Preto14049‐900Brazil
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Paton JF, St.‐John WM. Are pacemaker neurons active in eupnea when generated by an intact ponto‐medullary network? FASEB J 2006. [DOI: 10.1096/fasebj.20.4.a369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Julian F.R. Paton
- PhysiologyUniversity of BristolSchool of Medical SciencesUniversity WalkBristolBS8 1TDUnited Kingdom
| | - Walter M St.‐John
- PhysiologyDartmouth Medical SchoolBorwell BuildingLebanonNew Hampshire03756
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Affiliation(s)
- I A Rybak
- School of Biomedical Engineering, Science and Health Systems, Drexel University, Philadelphia, PA 19104, USA
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