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Andreas, Stefan
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Andreas, Stefan
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Andreas, Stefan
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Andreas, S.
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2009Journal Article Research Paper [["dc.bibliographiccitation.artnumber","7"],["dc.bibliographiccitation.journal","Respiratory Research"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Luethje, Lars"],["dc.contributor.author","Raupach, Tobias"],["dc.contributor.author","Michels, Hellmuth"],["dc.contributor.author","Unsoeld, Bernhard W."],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Koegler, Harald"],["dc.contributor.author","Andreas, Stefan"],["dc.date.accessioned","2017-09-07T11:47:34Z"],["dc.date.available","2017-09-07T11:47:34Z"],["dc.date.issued","2009"],["dc.description.abstract","Background: Systemic effects of chronic obstructive pulmonary disease (COPD) significantly contribute to severity and mortality of the disease. We aimed to develop a COPD/emphysema model exhibiting systemic manifestations of the disease. Methods: Female NMRI mice were treated 5 times intratracheally with porcine pancreatic elastase (emphysema) or phosphate-buffered saline (control). Emphysema severity was quantified histologically by mean linear intercept, exercise tolerance by treadmill running distance, diaphragm dysfunction using isolated muscle strips, pulmonary hypertension by measuring right ventricular pressure, and neurohumoral activation by determining urinary norepinephrine concentration. Results: Mean linear intercept was higher in emphysema (260.7 +/- 26.8 mu m) than in control lungs (24.7 +/- 1.7 mu m). Emphysema mice lost body weight, controls gained weight. Running distance was shorter in emphysema than in controls. Diaphragm muscle length was shorter in controls compared to emphysema. Fatigue tests of muscle strips revealed impaired relaxation in emphysema diaphragms. Maximum right ventricular pressure and norepinephrine were elevated in emphysema compared to controls. Linear correlations were observed between running distance changes and intercept, right ventricular weight, norepinephrine, and diaphragm length. Conclusion: The elastase mouse model exhibited severe emphysema with consecutive exercise limitation, and neurohumoral activation. The model may deepen our understanding of systemic aspects of COPD."],["dc.identifier.doi","10.1186/1465-9921-10-7"],["dc.identifier.gro","3143160"],["dc.identifier.isi","000263727200001"],["dc.identifier.pmid","19175913"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13854"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/643"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1465-9921"],["dc.rights","CC BY 2.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.0"],["dc.title","Exercise intolerance and systemic manifestations of pulmonary emphysema in a mouse model"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2009Journal Article Research Paper [["dc.bibliographiccitation.firstpage","273"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","European Journal of Heart Failure"],["dc.bibliographiccitation.lastpage","280"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Luethje, Lars"],["dc.contributor.author","Renner, Bernd"],["dc.contributor.author","Kessels, Roger"],["dc.contributor.author","Vollmann, Dirk"],["dc.contributor.author","Raupach, Tobias"],["dc.contributor.author","Gerritse, Bart"],["dc.contributor.author","Tasci, Selcuk"],["dc.contributor.author","Schwab, Joerg O."],["dc.contributor.author","Zabel, Markus"],["dc.contributor.author","Zenker, Dieter"],["dc.contributor.author","Schott, Peter"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Unterberg-Buchwald, Christina"],["dc.contributor.author","Andreas, Stefan"],["dc.date.accessioned","2017-09-07T11:47:31Z"],["dc.date.available","2017-09-07T11:47:31Z"],["dc.date.issued","2009"],["dc.description.abstract","Aims The combined therapeutic impact of atrial overdrive pacing (ACIP) and cardiac resynchronization therapy (CRT) on central steep apnoea (CSA) in chronic heart failure (CHF) so far has not been investigated. We aimed to evaluate the effect of CRT alone and CRT + AOP on CSA in CHF patients and to compare the influence of CRT on CHF between CSA positive and CSA negative patients. Methods and results Thirty patients with CRT indication underwent full night polysomnography, echocardiography, exercise testing, and neurohumoral evaluation before and 3 months after CRT implantation. In CSA positive patients (60%), two additional steep studies were conducted after 3 months of CRT, with CRT alone or CRT + ACIP, in random order. Cardiac resynchronization therapy resulted in significant improvements of NYHA class, left ventricular ejection fraction, N-terminal pro-brain natriuretic peptide, VO(2)max, and quality of life irrespective of the presence of CSA. Cardiac resynchronization therapy also reduced the central apnoea-hypopnoea index (AHI) (33.6 +/- 14.3 vs. 23.8 +/- 16.9 h(-1); P < 0.01) and central apnoea index (17.3 +/- 14.1 vs. 10.9 +/- 13.9 h(-1); P < 0.01) without altering steep stages. Cardiac resynchronization therapy with atrial overdrive pacing resulted in a small but significant additional decrease of the central AHI (23.8 +/- 16.9 vs. 21.5 +/- 16.9 h(-1); P < 0.01). Conclusion In this study, CRT significantly improved CSA without altering sleep stages. Cardiac resynchronization therapy with atrial. overdrive pacing resulted in a significant but minor additional improvement of CSA. Positive effects of CRT were irrespective of the presence of CSA."],["dc.identifier.doi","10.1093/eurjhf/hfn042"],["dc.identifier.gro","3143143"],["dc.identifier.isi","000265845700008"],["dc.identifier.pmid","19147446"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/625"],["dc.notes.intern","WoS Import 2017-03-10 / Funder: Bakken Research Center, Maastricht, Netherlands"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Oxford Univ Press"],["dc.relation.issn","1388-9842"],["dc.title","Cardiac resynchronization therapy and atrial overdrive pacing for the treatment of central sleep apnoea"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2016Journal Article Research Paper [["dc.bibliographiccitation.firstpage","589"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","COPD: Journal of Chronic Obstructive Pulmonary Disease"],["dc.bibliographiccitation.lastpage","594"],["dc.bibliographiccitation.volume","13"],["dc.contributor.author","Haarmann, Helge"],["dc.contributor.author","Folle, Jan"],["dc.contributor.author","Xuan Phuc Nguyen, Xuan Phuc Nguyen"],["dc.contributor.author","Herrmann, Peter"],["dc.contributor.author","Heusser, Karsten"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Andreas, Stefan"],["dc.contributor.author","Raupach, Tobias"],["dc.date.accessioned","2017-09-07T11:54:43Z"],["dc.date.available","2017-09-07T11:54:43Z"],["dc.date.issued","2016"],["dc.description.abstract","Exercise intolerance, skeletal muscle dysfunction, and reduced daily activity are central in COPD patients and closely related to quality of life and prognosis. Studies assessing muscle exercise have revealed an increase in sympathetic outflow as a link to muscle hypoperfusion and exercise limitation. Our primary hypothesis was that muscle sympathetic nerve activity (MSNA) correlates with exercise limitation in COPD. MSNA was evaluated at rest and during dynamic or static handgrip exercise. Additionally, we assessed heart rate, blood pressure, CO2 tension, oxygen saturation (SpO(2)), and breathing frequency. Ergospirometry was performed to evaluate exercise capacity. We assessed MSNA of 14 COPD patients and 8 controls. In patients, MSNA was negatively correlated with peak oxygen uptake (VO2 % pred) (r = -0.597; p = 0.040). During dynamic or static handgrip exercise, patients exhibited a significant increase in MSNA, which was not observed in the control group. The increase in MSNA during dynamic handgrip was highly negatively correlated with peak exercise capacity in Watts (w) and peak oxygen uptake (VO2/kg) (r = -0.853; p = 0.002 and r = -0.881; p = 0.002, respectively). Our study reveals an association between increased MSNA and limited exercise capacity in patients with COPD. Furthermore, we found an increased sympathetic response to moderate physical exercise (handgrip), which may contribute to exercise intolerance in COPD."],["dc.identifier.doi","10.3109/15412555.2015.1136272"],["dc.identifier.gro","3141749"],["dc.identifier.isi","000381997300009"],["dc.identifier.pmid","26829234"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/646"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Taylor & Francis Inc"],["dc.relation.eissn","1541-2563"],["dc.relation.issn","1541-2555"],["dc.title","Sympathetic Activation is Associated with Exercise Limitation in COPD"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2008Conference Paper Research Paper [["dc.bibliographiccitation.firstpage","199"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.lastpage","204"],["dc.bibliographiccitation.volume","70"],["dc.contributor.author","Raupach, Tobias"],["dc.contributor.author","Shahab, Lion"],["dc.contributor.author","Neubert, Karin"],["dc.contributor.author","Felten, Dorothea"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Andreas, Stefan"],["dc.date.accessioned","2017-09-07T11:48:47Z"],["dc.date.available","2017-09-07T11:48:47Z"],["dc.date.issued","2008"],["dc.description.abstract","Objective: This study assessed a newly set-up, hospital-based smoking cessation clinic with regard to continuous abstinence rates and the effectiveness of concomittant nicotine replacement therapy. Methods: Smoking status of 369 participants of this 8-week cognitive-behavioural smoking cessation group programme was obtained using exhaled carbon monoxide at the end of the course as well as self-report 6 months after the course. In addition to demographic data, FTND score, SDS score, and usage of nicotine replacement products were recorded. Results: Overall, 29.8% of all participants reported to have been continuously abstinent for 6 months after the course. Success rates increased significantly during the first year after initiation of the programme (from 15 to 35%, p < 0.001), indicating a learning process of the staff running the course. Nicotine replacement therapy was used by 51.3% of participants, but 58% of these discontinued its use within 5 weeks. Nicotine substitution for more than 5 weeks was associated with a 50% success rate after 6 months. Conclusions: Our data indicate a learning effect of smoking cessation course staff and a possible minimum duration required for nicotine replacement to be effective. Practice implications: The observed learning effect in smoking cessation programmes should be considered when evaluating newly established interventions of this kind. Patients tend to stop nicotine replacement therapy too early, thereby decreasing their chances of middle-term abstinence. (C) 2007 Elsevier Ireland Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.pec.2007.10.005"],["dc.identifier.gro","3143356"],["dc.identifier.isi","000253270900008"],["dc.identifier.pmid","18031972"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/861"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Elsevier Ireland Ltd"],["dc.publisher.place","Clare"],["dc.relation.conference","4th International Conference on Shared Decision Making"],["dc.relation.eventlocation","Freiburg, GERMANY"],["dc.relation.ispartof","Patient Education and Counseling"],["dc.relation.issn","0738-3991"],["dc.title","Implementing a hospital-based smoking cessation programme: Evidence for a learning effect"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2005Journal Article Research Paper [["dc.bibliographiccitation.firstpage","118"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","American Journal of Respiratory and Critical Care Medicine"],["dc.bibliographiccitation.lastpage","122"],["dc.bibliographiccitation.volume","172"],["dc.contributor.author","Lüthje, L."],["dc.contributor.author","Unterberg-Buchwald, Christina"],["dc.contributor.author","Dajani, D."],["dc.contributor.author","Vollmann, D."],["dc.contributor.author","Hasenfuß, G."],["dc.contributor.author","Andreas, S."],["dc.date.accessioned","2017-09-07T11:54:20Z"],["dc.date.available","2017-09-07T11:54:20Z"],["dc.date.issued","2005"],["dc.description.abstract","Rationale: Atrial overdrive pacing markedly improved sleep-disordered breathing in a recent study. Objectives: Using a single-blind, randomized, crossover design, we aimed to reproduce these findings and investigate the possible underlying mechanisms. Methods: Twenty ambulatory patients with an implanted pacemaker or cardioverter defibrillator were studied by polysomnography on 3 consecutive nights in a randomized, single-blind, crossover study in which devices were programmed for nonpacing or for overdrive pacing at 7 or 15 beats/minute faster than the mean nocturnal heart rate. Ventilation and biomarkers (urinary norepinephrine excretion, amino-terminal portion of the precursor of brain natriuretic peptide, or NT-proBNP, were also evaluated. Measurements and Main Results: Neither the primary endpoint apnea-hypopnea index, nor the apnea index, oxygen desaturation, ventilation, or biomarkers were affected by the nocturnal atrial overdrive pacing. A small, clinically insignificant, rate-dependent reduction in the hypopnea index was evoked by pacing (nonpacing, 13.4 +/- 1.4; pacing 7, 12.9 +/- 1.4, pacing 15, 10.9 +/- 1.0; p < 0.01, analysis of variance). Conclusions:The lack of effect on the apnea-hypopnea index means that atrial overdrive pacing is inappropriate for treating sleep-disordered breathing."],["dc.identifier.doi","10.1164/rccm.200409-1258OC"],["dc.identifier.gro","3143824"],["dc.identifier.isi","000230102400019"],["dc.identifier.pmid","15750043"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/1381"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.relation.issn","1073-449X"],["dc.title","Atrial overdrive pacing in patients with sleep apnea with implanted pacemaker"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2011Journal Article Research Paper [["dc.bibliographiccitation.firstpage","215"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Pulmonary Pharmacology & Therapeutics"],["dc.bibliographiccitation.lastpage","220"],["dc.bibliographiccitation.volume","24"],["dc.contributor.author","Raupach, Tobias"],["dc.contributor.author","Luethje, Lars"],["dc.contributor.author","Koegler, Harald"],["dc.contributor.author","Duve, Christian"],["dc.contributor.author","Schweda, Frank"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Andreas, Stefan"],["dc.date.accessioned","2017-09-07T11:44:19Z"],["dc.date.available","2017-09-07T11:44:19Z"],["dc.date.issued","2011"],["dc.description.abstract","Objectives: COPD with emphysema causes marked neurohumoral activation. Angiotensin II receptors are highly expressed within the lung and interfere with mechanisms involved in the progression of emphysema. This study examined the effects of an angiotensin II receptor blocker (ARB) on pulmonary and systemic manifestations of emphysema in a mouse model. Methods: Female NMRI mice received five intratracheal instillations of porcine pancreatic elastase (emphysema; n = 11) or phosphate-buffered saline (PBS; n = 4). Emphysema severity was quantified histologically by mean linear intercept, exercise tolerance by treadmill running distance, and lung biomechanics by compliance. Following emphysema induction, 6 mice were treated with the ARB irbesartan for 8 weeks, while 5 mice receiving standard food served as controls. Results: Following emphysema induction, mean linear intercept was higher in elastase-treated than in PBS-treated lungs (103.0 +/- 6.2 mu m vs. 35.0 +/- 0.6 mu m; p = 0.043) while running distance was shorter in emphysema mice (418.6 +/- 83.5 m vs. 906.6 +/- 244.6 m, p = 0.028). Irbesartan-treated emphysema mice showed a lower mean linear intercept (90.8 +/- 3.8 mu m vs. 121.5 +/- 8.1 mu m; p = 0.005), improved compliance (163.6 +/- 55.9 mu l/cmH(2)O vs. 354.4 +/- 72.5 mu l/cmH(2)O; p = 0.063) and greater running distance (p ANOVA = 0.015) compared to emphysema mice receiving standard food. Conclusions: The ARB irbesartan elicits encouraging beneficial effects on emphysema severity, lung biomechanics and exercise capacity in an emphysema mouse model. These findings might help to understand the corresponding positive effects of angiotensin II receptor blockade noticed in patients with COPD. (C) 2010 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.pupt.2010.12.006"],["dc.identifier.gro","3142753"],["dc.identifier.isi","000289396400006"],["dc.identifier.pmid","21187155"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/192"],["dc.notes.intern","WoS Import 2017-03-10 / Funder: Sanofi-Aventis (formerly Sanofi-Synthelabo), Paris, France"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Academic Press Ltd- Elsevier Science Ltd"],["dc.relation.issn","1094-5539"],["dc.title","Local and systemic effects of angiotensin receptor blockade in an emphysema mouse model"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2015Journal Article Research Paper [["dc.bibliographiccitation.artnumber","46"],["dc.bibliographiccitation.journal","BMC Pulmonary Medicine"],["dc.bibliographiccitation.volume","15"],["dc.contributor.author","Haarmann, Helge"],["dc.contributor.author","Mohrlang, Cordula"],["dc.contributor.author","Tschiesner, Uta"],["dc.contributor.author","Rubin, David B."],["dc.contributor.author","Bornemann, Thore"],["dc.contributor.author","Rueter, Karin"],["dc.contributor.author","Bonev, Slavtcho"],["dc.contributor.author","Raupach, Tobias"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Andreas, Stefan"],["dc.date.accessioned","2017-09-07T11:44:26Z"],["dc.date.available","2017-09-07T11:44:26Z"],["dc.date.issued","2015"],["dc.description.abstract","Background: Neurohumoral activation is present in COPD and might provide a link between pulmonary and systemic effects, especially cardiovascular disease. Because long acting inhaled beta-agonists reduce hyperinflation, they could reduce sympathoexcitation by improving the inflation reflex. We aimed to evaluate if inhaled therapy with salmeterol reduces muscle sympathetic nerve activity (MSNA) evaluated by microneurography. Methods: MSNA, heart rate, blood pressure, and respiration were continually measured. After baseline recording of 20 minutes, placebo was administered; after further 45 minutes salmeterol (50 mu g) was administered which was followed by a further 45 minutes of data recording. Additionally, lung function, plasma catecholamine levels, arterial pulse wave velocity, heart rate variability, and baroreflex sensitivity were evaluated. Following 4 weeks of treatment with salmeterol 50 mu g twice daily, measurements were repeated without placebo administration. Results: A total of 32 COPD patients were included. Valid MSNA signals were obtained from 18 patients. Change in MSNA (bursts/100 heart beats) following acute administration of salmeterol did not differ significantly from the change following placebo (-1.96 +/- 9.81 vs. -0.65 +/- 9.07; p = 0.51) although hyperinflation was significantly reduced. Likewise, no changes in MSNA or catecholamines were observed after 4 weeks. Heart rate increased significantly by 3.8 +/- 4.2 (p < 0.01) acutely and 3.9 +/- 4.3 bpm (p < 0.01) after 4 weeks. Salmeterol treatment was safe and well tolerated. Conclusions: By using microneurography as a gold standard to evaluate sympathetic activity we found no change in MSNA following salmeterol inhalation. Thus, despite an attenuation of hyperinflation, the long acting beta-agonist salmeterol does not appear to reduce nor incite sympathoexcitation."],["dc.identifier.doi","10.1186/s12890-015-0054-7"],["dc.identifier.gro","3141919"],["dc.identifier.isi","000356211900001"],["dc.identifier.pmid","25924990"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12294"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/2533"],["dc.notes.intern","WoS Import 2017-03-10 / Funder: GlaxoSmithKline, Munich, Germany [SCO114520]"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1471-2466"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Inhaled beta-agonist does not modify sympathetic activity in patients with COPD"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2010Journal Article Research Paper [["dc.bibliographiccitation.firstpage","107"],["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Respiratory Medicine"],["dc.bibliographiccitation.lastpage","113"],["dc.bibliographiccitation.volume","104"],["dc.contributor.author","Raupach, Tobias"],["dc.contributor.author","Bähr, Mathias"],["dc.contributor.author","Herrmann, Peter"],["dc.contributor.author","Luethje, Lars"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Andreas, Stefan"],["dc.date.accessioned","2017-09-07T11:46:44Z"],["dc.date.available","2017-09-07T11:46:44Z"],["dc.date.issued","2010"],["dc.description.abstract","Objectives: Neurohumoral. activation has been shown to be present in patients with chronic obstructive pulmonary disease (COPD). The increase in respiratory muscle work might be responsible for the observed elevation of sympathetic tone via a respiratory muscle ergoreflex in these patients. The aim of this study is to investigate whether moderately increasing inspiratory resistive loading will impact on sympathetic activity in healthy subjects and COPD patients. Methods: Efferent muscle sympathetic nerve activity, blood pressure, heart rate and respiratory movements were continuously measured in 15 patients and 15 healthy control subjects. In order to increase work of breathing as evaluated by the tension-time index, inspiratory resistive loading was performed white patients were breathing through a spirometer. Results: At baseline, sympathetic nerve activity was significantly elevated in patients. Resistive loading increased work of breathing (tension-time index) by roughly 110% (COPD) and 130% (controls) but did not significantly alter blood gases or sympathetic activity in either group. Conclusions: Doubting the work of breathing does not affect sympathetic activation in COPD patients or healthy control subjects. Thus in COPD the respiratory muscle ergoreflex does not seem to play a major rote in sympathoexcitation. (C) 2009 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.rmed.2009.06.011"],["dc.identifier.gro","3143004"],["dc.identifier.isi","000274889300015"],["dc.identifier.pmid","19619996"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/471"],["dc.notes.intern","WoS Import 2017-03-10"],["dc.notes.status","final"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","W B Saunders Co Ltd"],["dc.relation.issn","0954-6111"],["dc.title","Inspiratory resistive loading does not increase sympathetic tone in COPD"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS2013Journal Article [["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","American Journal of Respiratory and Critical Care Medicine"],["dc.bibliographiccitation.volume","187"],["dc.contributor.author","Andreas, Stefan"],["dc.contributor.author","Hasenfuß, Gerd"],["dc.date.accessioned","2017-09-07T11:52:37Z"],["dc.date.available","2017-09-07T11:52:37Z"],["dc.date.issued","2013"],["dc.identifier.doi","10.1164/ajrccm.187.3.328"],["dc.identifier.gro","3144971"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/2654"],["dc.notes.intern","Crossref Import"],["dc.notes.status","public"],["dc.publisher","American Thoracic Society"],["dc.relation.issn","1073-449X"],["dc.title","Beneficial Effects of Angiotensin Receptor Blockade in Chronic Obstructive Pulmonary Disease"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]Details DOI2001Journal Article [["dc.bibliographiccitation.firstpage","597"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","American Journal of Respiratory and Critical Care Medicine"],["dc.bibliographiccitation.lastpage","601"],["dc.bibliographiccitation.volume","164"],["dc.contributor.author","Heindl, S."],["dc.contributor.author","Lehnert, Marcus"],["dc.contributor.author","Criee, C. P."],["dc.contributor.author","Hasenfuß, Gerd"],["dc.contributor.author","Andreas, S."],["dc.date.accessioned","2018-11-07T08:45:33Z"],["dc.date.available","2018-11-07T08:45:33Z"],["dc.date.issued","2001"],["dc.description.abstract","The autonomic nervous system may be disturbed in chronic respiratory failure. We tested the hypothesis that there is increased sympathetic activity in patients with chronic hypoxemia. Furthermore, we examined the effect of short-term oxygen on muscle sympathetic nerve activity (MSNA) in these patients. We performed microneurography of the peroneal nerve in 11 patients with hypoxemia due to chronic obstructive pulmonary disease (COPD, n = 6) or lung fibrosis (n = 5) and in 11 healthy subjects matched for age and sex. MSNA was measured during normal breathing in all subjects. In eight patients and in seven control subjects, MSNA was also measured during nasal oxygen (4 L/min). MSNA was higher in the patients with chronic respiratory failure compared with the healthy subjects during normal breathing (61 +/- 5 versus 34 +/- 2 bursts/min, mean +/- SEM; p = 0.0002, paired t test). During oxygen administration, MSNA decreased from 63 +/- 6 to 56 +/- 6 bursts/min in the patients (p = 0.0004, ANOVA); there was no change in sympathetic activity in the control subjects. For the first time, there is direct evidence of marked sympathetic activation in patients with chronic respiratory failure. This is partly explained by arterial chemoreflex activation and may play an important role in the pathogenesis of the disease."],["dc.identifier.doi","10.1164/ajrccm.164.4.2007085"],["dc.identifier.gro","3144977"],["dc.identifier.isi","000170816900017"],["dc.identifier.pmid","11520722"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20473"],["dc.language.iso","en"],["dc.notes.intern","Crossref Import"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Amer Thoracic Soc"],["dc.relation.issn","1073-449X"],["dc.title","Marked sympathetic activation in patients with chronic respiratory failure"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]Details DOI PMID PMC WOS