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Acyl ghrelin improv...
Acyl ghrelin improves cardiac function in heart failure and increases fractional shortening in cardiomyocytes without calcium mobilization
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- Lund, Lars H. (författare)
- Karolinska Institutet,Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden;Heart and Vascular Theme, Karolinska University Hospital , Norrbacka, S1:02, 171 76 Stockholm , Sweden
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- Hage, Camilla (författare)
- Karolinska Institutet,Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden;Heart and Vascular Theme, Karolinska University Hospital , Norrbacka, S1:02, 171 76 Stockholm , Sweden
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- Pironti, Gianluigi (författare)
- Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden;Department of Physiology and Pharmacology, Karolinska Institutet , Biomedicum, Solnavägen 9 171 65 Solna , Sweden
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- Thorvaldsen, Tonje (författare)
- Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden;Heart and Vascular Theme, Karolinska University Hospital , Norrbacka, S1:02, 171 76 Stockholm , Sweden
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- Ljung-Faxén, Ulrika (författare)
- Karolinska Institutet,Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden;Perioperative Medicine and Intensive Care, Karolinska University Hospital , 171 76 Stockholm , Sweden
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- Zabarovskaja, Stanislava (författare)
- Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden
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- Shahgaldi, Kambiz (författare)
- Department of Clinical Physiology, Sunderby Hospital , 971 80 Luleå , Sweden
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- Webb, Dominic-Luc (författare)
- Uppsala universitet,Gastroenterologi/hepatologi
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- Hellström, Per M., 1954- (författare)
- Uppsala universitet,Gastroenterologi/hepatologi
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- Andersson, Daniel C. (författare)
- Karolinska Institutet,Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden;Heart and Vascular Theme, Karolinska University Hospital , Norrbacka, S1:02, 171 76 Stockholm , Sweden;Department of Physiology and Pharmacology, Karolinska Institutet , Biomedicum, Solnavägen 9 171 65 Solna , Sweden
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- Ståhlberg, Marcus (författare)
- Karolinska Institutet,Department of Medicine, Unit of Cardiology, Karolinska Institutet , D1:04, 171 76 Stockholm , Sweden;Heart and Vascular Theme, Karolinska University Hospital , Norrbacka, S1:02, 171 76 Stockholm , Sweden
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: European Heart Journal. - : Oxford University Press. - 0195-668X .- 1522-9645.
- Relaterad länk:
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Background and AimsGhrelin is an endogenous appetite-stimulating peptide hormone with potential cardiovascular benefits. Effects of acylated (activated) ghrelin were assessed in patients with heart failure and reduced ejection fraction (HFrEF) and in ex vivo mouse cardiomyocytes.Methods and resultsIn a randomized placebo-controlled double-blind trial, 31 patients with chronic HFrEF were randomized to synthetic human acyl ghrelin (0.1 µg/kg/min) or placebo intravenously over 120 min. The primary outcome was change in cardiac output (CO). Isolated mouse cardiomyocytes were treated with acyl ghrelin and fractional shortening and calcium transients were assessed. Acyl ghrelin but not placebo increased cardiac output (acyl ghrelin: 4.08 ± 1.15 to 5.23 ± 1.98 L/min; placebo: 4.26 ± 1.23 to 4.11 ± 1.99 L/min, P < 0.001). Acyl ghrelin caused a significant increase in stroke volume and nominal increases in left ventricular ejection fraction and segmental longitudinal strain and tricuspid annular plane systolic excursion. There were no effects on blood pressure, arrhythmias, or ischaemia. Heart rate decreased nominally (acyl ghrelin: 71 ± 11 to 67 ± 11 b.p.m.; placebo 69 ± 8 to 68 ± 10 b.p.m.). In cardiomyocytes, acyl ghrelin increased fractional shortening, did not affect cellular Ca2+ transients, and reduced troponin I phosphorylation. The increase in fractional shortening and reduction in troponin I phosphorylation was blocked by the acyl ghrelin antagonist D-Lys 3.ConclusionIn patients with HFrEF, acyl ghrelin increased cardiac output without causing hypotension, tachycardia, arrhythmia, or ischaemia. In isolated cardiomyocytes, acyl ghrelin increased contractility independently of preload and afterload and without Ca2+ mobilization, which may explain the lack of clinical side effects. Ghrelin treatment should be explored in additional randomized trials.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
Nyckelord
- Heart failure
- Contractility
- Fractional shortening
- Cardiac output
- Stroke volume
- Inotrope
- Myotrope
- Ghrelin
- Acyl ghrelin
- Acylated ghrelin
- Calcium
- Medicinsk vetenskap
- Medical Science
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Lund, Lars H.
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Hage, Camilla
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Pironti, Gianlui ...
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Thorvaldsen, Ton ...
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Ljung-Faxén, Ulr ...
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Zabarovskaja, St ...
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Shahgaldi, Kambi ...
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Webb, Dominic-Lu ...
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Hellström, Per M ...
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Andersson, Danie ...
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Ståhlberg, Marcu ...
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- Om ämnet
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Kardiologi
- Artiklar i publikationen
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European Heart J ...
- Av lärosätet
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Uppsala universitet
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Karolinska Institutet