Abstract:
BACKGROUND:We have previously shown that intralipid (lipid emulsion) protects the heart against ischemia/reperfusion injury and bupivacaine-induced cardiotoxicity. However, the precise underlying mechanisms are not fully understood. Here we explored the hypothesis that free fatty acid receptor-1 or G-protein-coupled receptor 40 is expressed in the heart and that cardioprotective effects of lipid emulsion are mediated through G-protein-coupled receptor 40 in two animal models of ischemia/reperfusion injury and bupivacaine-induced cardiotoxicity. METHODS:Langendorff-perfused male mouse hearts were subjected to ischemia/reperfusion with lipid emulsion alone (1%) or with G-protein-coupled receptor 40 antagonist (GW1100, 10 µM). Additionally, cardiotoxicity was achieved in male rats with bupivacaine bolus (10 mg/kg, IV) followed by lipid emulsion alone (20%, 5 ml/kg bolus, and 0.5 ml · kg · min maintenance, IV) or with GW1100 pretreatment (2.5 mg/kg, IV). RESULTS:G-protein-coupled receptor 40 is expressed in rodent hearts. GW1100 abolished lipid emulsion-induced cardioprotection against ischemia/reperfusion in mice because rate pressure product and left ventricular developed pressure were lower than lipid emulsion alone (rate pressure product: 2,186 ± 1,783 [n = 7] vs. 11,607 ± 4,347 [n = 8]; left ventricular developed pressure: 22.6 ± 10.4 vs. 63.8 ± 20; P < 0.0001). Lipid emulsion + GW1100 also demonstrated reduced LV dP/dtmax and LV dP/dtmin (dP/dtmax = 749 ± 386 vs. 2,098 ± 792, P < 0.001; dP/dtmin = -443 ± 262 vs. -1,447 ± 546, P < 0.001). In bupivacaine-induced cardiotoxicity rat model, GW1100 pretreatment had no significant effect on heart rate (HR) and ejection fraction after 30 min (HR: 302 ± 17 vs. 312 ± 38; ejection fraction: 69 ± 3% vs. 73 ± 4%). GW1100 pretreatment, however, prevented lipid-rescue, with no recovery after 10 min. In the control group, lipid emulsion improved HR (215 ± 16 at 10 min) and fully rescued left ventricle function at 10 min (ejection fraction = 67 ± 8%, fractional shortening = 38 ± 6%). CONCLUSIONS:G-protein-coupled receptor 40 is expressed in the rodent heart and is involved in cardioprotection mediated by lipid emulsion against ischemia/reperfusion injury and bupivacaine-induced cardiotoxicity.
journal_name
Anesthesiologyjournal_title
Anesthesiologyauthors
Umar S,Li J,Hannabass K,Vaillancourt M,Cunningham CM,Moazeni S,Mahajan A,Eghbali Mdoi
10.1097/ALN.0000000000002195subject
Has Abstractpub_date
2018-07-01 00:00:00pages
154-162issue
1eissn
0003-3022issn
1528-1175journal_volume
129pub_type
杂志文章相关文献
ANESTHESIOLOGY文献大全abstract:BACKGROUND:In animals, systemic and intrathecal administration of the alpha2 -adrenergic receptor agonist dexmedetomidine results in robust antinociceptive effects in models of heat pain. In humans, systemically administered dexmedetomidine is approved for sedating patients in the intensive care unit. However, whether ...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-200409000-00024
更新日期:2004-09-01 00:00:00
abstract::The authors performed a randomized, prospective trial comparing enflurane, halothane, and isoflurane (each administered with nitrous oxide) to establish which inhaled anesthetic produced the fewest complications and the most rapid induction of anesthesia for children undergoing general anesthesia for diagnostic proced...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-198512000-00015
更新日期:1985-12-01 00:00:00
abstract:BACKGROUND:Renal ischemia-reperfusion injury (IRI) is a major cause of acute kidney injury and often leads to multiorgan dysfunction and systemic inflammation. Volatile anesthetics have potent antiinflammatory effects. We aimed to determine whether the representative volatile anesthetic isoflurane protects against acut...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/ALN.0b013e3182070c3a
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Epidural morphine has proven analgesic efficacy in the postoperative period and is widely used. This study evaluated the efficacy of extended-release epidural morphine (EREM; DepoDur; Endo Pharmaceuticals Inc., Chadds Ford, PA; SkyePharma, Inc., San Diego, CA) in providing pain relief for 48 h after surgery....
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1097/00000542-200505000-00022
更新日期:2005-05-01 00:00:00
abstract:BACKGROUND:The mechanisms of amino-amide local anesthetic agent-induced vasoconstriction remain unclear. The current study was designed to examine the roles of the protein kinase C (PKC), Rho kinase, and p44/42 mitogen-activated protein kinase (p44/42 MAPK) signaling pathways in calcium (Ca2+)-sensitization mechanisms ...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-200509000-00018
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:Acid instillation leads to direct lung and to secondary systemic organ injury, probably via activated macrophages and neutrophils. This study investigated the effects of neutrophil elastase on organ injury after unilateral lung acid instillation by administrating a specific neutrophil elastase inhibitor, ONO...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-199709000-00025
更新日期:1997-09-01 00:00:00
abstract:BACKGROUND:Dysrhythmias and death occur in patients with acquired long QT syndrome (LQTS). Little information exists regarding interactions between anesthetics and drugs that prolong ventricular repolarization. Therefore the effects of three commonly used intravenous anesthetics on ventricular repolarization were inves...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-199711000-00022
更新日期:1997-11-01 00:00:00
abstract:BACKGROUND:The authors conducted a randomized controlled trial to determine whether parental presence during induction of anesthesia (PPIA) is associated with parental physiologic and behavioral manifestations of stress. METHODS:Children and their parents (N = 80) were randomly assigned to one of three groups: (1) PPI...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-200301000-00013
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Xenon is a general anesthetic with neuroprotective properties. Xenon inhibition at the glycine-binding site of the N-Methyl-D-aspartate (NMDA) receptor mediates xenon neuroprotection against ischemic injury in vitro. Here we identify specific amino acids important for xenon binding to the NMDA receptor, with...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/ALN.0b013e31825ada2e
更新日期:2012-07-01 00:00:00
abstract::The effect of enflurane (2% and 4% inspired) on left ventricular (LV) function were examined in chronically instrumented dogs, both intact and after isolation of their hearts and lungs from the systemic circulation. Enflurane in the intact dogs increased heart rate (32 +/- 5% with 2% and 41 +/- 4% with 4%) and elicite...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-198302000-00010
更新日期:1983-02-01 00:00:00
abstract:BACKGROUND:Given the current practice environment, it is important to determine the anesthetic technique with the highest patient acceptance and lowest associated costs. The authors compared three commonly used anesthetic techniques for anorectal procedures in the ambulatory setting. METHODS:Ninety-three consenting ad...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-200011000-00015
更新日期:2000-11-01 00:00:00
abstract:BACKGROUND:Breastfeeding is an important public health concern. High cumulative doses of epidural fentanyl administered for labor analgesia have been reported to be associated with early termination of breastfeeding. We tested the hypothesis that breastfeeding success is adversely influenced by the cumulative epidural ...
journal_title:Anesthesiology
pub_type: 杂志文章,随机对照试验
doi:10.1097/ALN.0000000000001793
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:Although intravenous patient-controlled analgesia opioids and epidural analgesia offer improved analgesia for postoperative patients treated on an acute pain service, these modalities also expose patients to some risk of serious morbidity and even mortality. Root cause analysis, a process for identifying the...
journal_title:Anesthesiology
pub_type: 杂志文章,多中心研究
doi:10.1097/ALN.0b013e3182a76f59
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Isoflurane and sevoflurane have been shown to elicit myocardial postconditioning, but the effect of desflurane remain unknown. The authors studied the mechanisms involved in desflurane-induced myocardial postconditioning. METHODS:Contracting isolated human right atrial trabeculae (34 degrees C, stimulation ...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/ALN.0b013e31818d6b09
更新日期:2008-12-01 00:00:00
abstract:BACKGROUND:Although the anesthetic effects of the intravenous anesthetic agent propofol have been studied in the living human brain using brain imaging technology, the nature of the anesthetic state evident in the human brain during inhalational anesthesia remains unknown. To examine this issue, the authors studied the...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-199703000-00006
更新日期:1997-03-01 00:00:00
abstract:BACKGROUND:Sugammadex (Org 25969) forms a complex with steroidal neuromuscular blocking agents, thereby reversing neuromuscular block. This study investigated the dose-response relation, safety, and pharmacokinetics of sugammadex to reverse rocuronium-induced block. METHODS:Twenty-seven male surgical patients aged 18-...
journal_title:Anesthesiology
pub_type: 杂志文章,随机对照试验
doi:10.1097/00000542-200604000-00009
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:Midazolam and alfentanil are desirable anesthetic adjuncts for cardiac anesthesia. They are metabolized by cytochrome P450 3A (CYP3A) enzymes. These isozymes are inhibited by concurrent medications, including the calcium channel antagonist diltiazem, which may have an effect on recovery from anesthesia. MET...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-199612000-00004
更新日期:1996-12-01 00:00:00
abstract:BACKGROUND:The surface membrane Ca(2+)-adenosine triphosphatase and Na(+)-Ca(2+) exchanger transport Ca(2+) out of the ventricular myocyte, competing for cytosolic Ca(2+) with the Ca(2+)-adenosine triphosphatase located in the sarcoplasmic reticulum. In this study the authors examined the effects of halothane, isoflura...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-200206000-00027
更新日期:2002-06-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to determine whether either regional anesthesia (RA) or general anesthesia (GA) provided the best analgesia with the fewest adverse effects up to 2 weeks after ambulatory hand surgery. METHODS:Patients undergoing ambulatory hand surgery were randomly assigned to RA (axillary br...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-200408000-00028
更新日期:2004-08-01 00:00:00
abstract:BACKGROUND:The authors developed a measure to determine whether maternal motivation to be present during induction (Motivation for Parental Presence during Induction of Anesthesia [MPPIA]) is related to children's anxiety during the induction process. METHODS:Mothers and children (aged 2-12 yr) undergoing outpatient, ...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-200509000-00008
更新日期:2005-09-01 00:00:00
abstract:BACKGROUND:The observation that peripheral trauma causes enhanced spinal neuronal excitability has provided the scientific rationale for the concept of "pre-emptive analgesia." The premise has been that only noxious stimuli cause sensitization in sensory pathways, but this premise has not been tested in the conscious s...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-199501000-00032
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:The diagnosis of acute life-threatening allergic reactions during anesthesia relies on clinical signs, histamine and/or tryptase measurements, and allergic testing. In patients who die after the reaction, skin tests cannot be performed, and the effect of resuscitation manoeuvres on mediator concentrations is...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/ALN.0000000000000276
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:The purpose of this study was to evaluate a new, physiologically inspired method for the analysis of the electroencephalogram during propofol-remifentanil anesthesia. Based on fixed-order autoregressive moving-average modeling, this method was hypothesized to be capable of dissociating the effects that hypno...
journal_title:Anesthesiology
pub_type: 杂志文章,随机对照试验
doi:10.1097/ALN.0b013e3181e3d8a6
更新日期:2010-08-01 00:00:00
abstract:BACKGROUND:Patients who receive a combination of a benzodiazepine and an opioid for conscious sedation are at risk for developing respiratory depression. While flumazenil effectively antagonizes the respiratory depression associated with a benzodiazepine alone, its efficacy in the presence of both a benzodiazepine and ...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-199610000-00005
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:The authors used the American Society of Anesthesiologists Closed Claims Project database to determine changes in the proportion of claims for death or permanent brain damage over a 26-yr period and to identify factors associated with the observed changes. METHODS:The Closed Claims Project is a structured e...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-200612000-00007
更新日期:2006-12-01 00:00:00
abstract:BACKGROUND:The Pediatric Perioperative Cardiac Arrest (POCA) Registry was formed in 1994 in an attempt to determine the clinical factors and outcomes associated with cardiac arrest in anesthetized children. METHODS:Institutions that provide anesthesia for children are voluntarily enrolled in the POCA Registry. A repre...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-200007000-00007
更新日期:2000-07-01 00:00:00
abstract:BACKGROUND:Because tactile evaluation is the most common form of clinical neuromuscular monitoring, this study examines the relative efficacy of antagonizing residual block at different levels of recovery of the tactile train-of-four (TOF) response. METHODS:Anesthesia was induced in 64 adults with 2-5 microg/kg fentan...
journal_title:Anesthesiology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00000542-200201000-00013
更新日期:2002-01-01 00:00:00
abstract::Previous investigators have identified an aortic-to-radial artery pressure gradient thought to develop during rewarming and discontinuation of cardiopulmonary bypass. The authors measured mean aortic and radial artery pressures before, during, and after cardiopulmonary bypass in 30 patients, to determine when the pres...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-199207000-00009
更新日期:1992-07-01 00:00:00
abstract:BACKGROUND:A relatively small number of inhibitory interneurons can control the excitability and synchronization of large numbers of pyramidal cells in hippocampus and other cortical regions. Thus, anesthetic modulation of interneurons could play an important role for the maintenance of anesthesia. The aim of this stud...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/00000542-200102000-00025
更新日期:2001-02-01 00:00:00
abstract:BACKGROUND:Previous studies integrated opioid benefit and harm into one single function-the utility function-to determine the drug toxicity (respiratory depression) in light of its wanted effect (analgesia). This study further refined the concept of the utility function using the respiratory and analgesic effects of th...
journal_title:Anesthesiology
pub_type: 杂志文章
doi:10.1097/ALN.0000000000002138
更新日期:2018-05-01 00:00:00