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sevoflurane

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https://www.readbyqxmd.com/read/28346918/5-ht1a-receptors-mediate-analgesia-induced-by-emulsified-sevoflurane-in-thermal-nociception-but-have-little-effect-on-chemical-nociception
#1
Chen Yan, Dai Ti-Jun, Li Xin, Cao Gao, Jiang Shen, Tao Hong, Meng Zhi-Xiu
OBJECTIVE: The study aimed to investigate the relationship between the analgesic effect of sevoflurane and 5-serotonin receptor 1A (5-HT1A R) in the spinal cords of mice. METHODS: Analgesic mouse models were established by intraperitoneal injection of emulsified sevoflurane, and the influence of p-MPPF (a specific antagonist of 5-HT1A Rs) intrathecal injection on the changes in tail-flick latency in tail-withdrawal test, pain threshold in hot-plate test (HPPT), and writhing times in acetic acid-induced writhing test were recorded...
March 28, 2017: Pharmacology
https://www.readbyqxmd.com/read/28340810/comparison-of-two-different-inhalation-anesthetics-on-grafted-kidney-function-in-patients-undergoing-renal-transplantation-surgery-desflurane-or-sevoflurane
#2
M S Karadeniz, H S Ciftci, T Tefik, O Mammadov, H Yazıcı, I Nane, A Turkmen, F Oguz, K M Tugrul
BACKGROUND: Anesthetic management of patients during renal transplantation is vitally important for ensuring proper functioning of kidneys that have undergone ischemia-reperfusion damage. The goal of this prospective study was to compare the effects of 2 different inhalation agents (sevoflurane and desflurane) on grafted kidney function in renal transplantation surgery. METHODS: Sixty-five patients who were scheduled for living donor renal transplantation were enrolled in the study...
April 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28340572/does-sevoflurane-add-to-outpatient-procedural-sedation-in-children-a-randomised-clinical-trial
#3
Hugo Sérgio de Oliveira Gomes, Heloisa de Sousa Gomes, Joji Sado-Filho, Luciane Rezende Costa, Paulo Sucasas Costa
BACKGROUND: There is little evidence concerning the effect of sevoflurane in outpatient procedural sedation, especially in children. We hypothesised that the addition of sevoflurane to a sedation regimen improves children's behaviour with minimal adverse events. METHODS: This is a randomised, triple-blind clinical trial conducted on an outpatient basis. Participants were 27 healthy children aged 4 to 6 years, who previously refused dental treatment with non-pharmacologic methods...
March 24, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28338578/spinal-cord-is-the-primary-site-of-action-for-skeletal-muscle-relaxation-by-sevoflurane
#4
Peng Zhang, Pingliang Yang, Ling Ye, Tao Zhu
STUDY DESIGN: A randomized, in vivo study was performed to explore the skeletal muscle relaxation action site of sevoflurane. OBJECTIVE: The aim of this study was to investigate the skeletal muscle relaxation action of sevoflurane by a modified selective anesthetics delivery rabbit model. SUMMARY OF BACKGROUND DATA: The action site and mechanisms of skeletal muscle relaxation caused by sevoflurane was unclear. So a modified selective anesthetics delivery model was used...
March 23, 2017: Spine
https://www.readbyqxmd.com/read/28338180/influence-of-dexmedetomidine-to-cognitive-function-during-recovery-period-for-children-with-general-anesthesia
#5
Z-M Jia, H-N Hao, M-L Huang, D-F Ma, X-L Jia, B Ma
OBJECTIVE: We studied the influence of Dexmedetomidine on cognitive function in children during the recovery period of general anesthesia. PATIENTS AND METHODS: Ninety-three children who underwent general anesthesia were selected and randomly divided into (1) the control group, (2) the dexmedetomidine group, and (3) the dezocine group. Fentanyl, propofol, and rocuronium were used in all patients to induce anesthesia, while sevoflurane inhalation and propofol were used to maintain anesthesia...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28333442/photoaffinity-ligand-for-the-inhalational-anesthetic-sevoflurane-allows-mechanistic-insight-into-potassium-channel-modulation
#6
Kellie A Woll, Wesley Peng, Qiansheng Liang, Lianteng Zhi, Jack A Jacobs, Lina Maciunas, Natarajan Bhanu, Benjamin A Garcia, Manuel Covarrubias, Patrick J Loll, William P Dailey, Roderic G Eckenhoff
Sevoflurane is a commonly used inhaled general anesthetic. Despite this, its mechanism of action remains largely elusive. Compared to other anesthetics, sevoflurane exhibits distinct functional activity. In particular, sevoflurane is a positive modulator of voltage-gated Shaker-related potassium channels (Kv1.x), which are key regulators of action potentials. Here, we report the synthesis and validation of azisevoflurane, a photoaffinity ligand for the direct identification of sevoflurane binding sites in the Kv1...
March 23, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28328748/cyclophilin-d-modulates-the-cardiac-mitochondrial-target-of-isoflurane-sevoflurane-and-desflurane
#7
Rania Harisseh, Pascal Chiari, Camille Villedieu, Pauline Sueur, Maryline Abrial, Jean-Luc Fellahi, Michel Ovize, Abdallah Gharib
BACKGROUND: Volatile anesthetics are known to limit myocardial ischemia-reperfusion injuries. Mitochondria were shown to be major contributors to cardioprotection. Cyclophilin D (CypD) is one of the main regulators of mitochondria-induced cell death. We compared the effect of isoflurane, sevoflurane and desflurane in the presence or absence of CypD, to clarify its role in the mechanism of cardioprotection induced by these anesthetics. METHODS: Oxidative phosphorylation, mitochondrial membrane potential and H2O2 production were measured in isolated mitochondria from wild-type or CypD knockout mice in basal conditions and after hypoxia-reoxygenation in presence or absence of volatiles anesthetics...
March 17, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28325748/halogenated-ether-alcohol-and-alkane-anesthetics-activate-task-3-tandem-pore-potassium-channels-likely-through-a-common-mechanism
#8
Anita Luethy, James D Boghosian, Rithu Srikantha, Joseph Cotten
TASK-3 (KCNK9) tandem pore potassium channel function is activated by halogenated anesthetics through binding at a putative anesthetic binding cavity. To understand pharmacological requirements for TASK-3 activation, we studied the concentration-response of TASK-3 to several anesthetics (isoflurane, desflurane, sevoflurane, halothane, α-chloralose, 2,2,2-trichloroethanol(TCE), and chloral hydrate), to ethanol, and to a panel of halogenated methanes and alcohols. We used mutagenesis to probe the anesthetic binding cavity as observed in a TASK-3 homology model...
March 21, 2017: Molecular Pharmacology
https://www.readbyqxmd.com/read/28323158/monitoring-the-end-tidal-concentration-of-sevoflurane-for-preventing-awareness-during-anesthesia-meets-panda-a-prospective-clinical-trial
#9
Jiebo Wang, Liangcheng Zhang, Qijian Huang, Guohua Wu XianfengWeng, Zhongmeng Lai, Pengtao Lin
OBJECTIVE: It was hypothesized that monitoring end-tidal sevoflurane (ETS) during endoscopic surgery could reduce the incidence of intraoperative awareness in patients undergoing general anesthesia. Herein, the incidence of intraoperative awareness and other correlative factors was recorded and compared. METHODS: Two thousand five hundred ASA I-III patients aged 18-80 years who underwent general anesthesia were randomly divided into 2 groups (n = 1250): routine care group (R) and ETS concentration group (E)...
March 16, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28319548/tanshinone-iia-attenuates-sevoflurane-neurotoxicity-in-neonatal-mice
#10
Yimeng Xia, Heng Xu, Chenfei Jia, Xiaodong Hu, Yu Kang, Xiaoxuan Yang, Qingsheng Xue, Guorong Tao, Buwei Yu
BACKGROUND: Sevoflurane is the most widely used inhalational anesthetic in pediatric medicine. Despite this, sevoflurane has been reported to exert potentially neurotoxic effects on the developing brain. Clinical interventions and treatments for these effects are limited. Tanshinone IIA (Tan IIA), extracted from Salvia miltiorrhiza (Danshen), has been documented to alleviate cognitive decline in traditional applications. Therefore, we hypothesized that preadministration of Tan IIA may attenuate sevoflurane-induced neurotoxicity, suggesting that Tan IIA is a new and promising drug capable of counteracting the effects of cognitive dysfunction produced by general anesthetics...
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28319126/effects-of-sevoflurane-and-clonidine-on-acid-base-status-and-long-term-emotional-and-cognitive-outcomes-in-spontaneously-breathing-rat-pups
#11
Nicole Almenrader, Paola Colucci, Valentina De Castro, Daniela Valeri, Maura Palmery, Viviana Trezza, Patrizia Campolongo
BACKGROUND: Numerous experiments in rodents suggest a causative link between exposure to general anaesthetics during brain growth spurt and poor long-lasting neurological outcomes. Many of these studies have been questioned with regard of their translational value, mainly because of extremely long anaesthesia exposure. Therefore, the aim of the present study was to assess the impact of a short sevoflurane anaesthesia, alone or combined with clonidine treatment, on respiratory function in spontaneously breathing rat pups and overall effects on long-lasting emotional and cognitive functions...
2017: PloS One
https://www.readbyqxmd.com/read/28316125/deferoxamine-activated-hypoxia-inducible-factor-1-restores-cardioprotective-effects-of-sevoflurane-postconditioning-in-diabetic-rats
#12
Peng Xie, Long Yang, Ailaiti Talaiti, Jianjiang Wu, Jin Yu, Tian Yu, Haiying Wang, Bo Huang, Qin Wu, Yiliyaer Maimaitili, Jiang Wang, Haiping Ma, Yining Yang, Hong Zheng
AIM: The cardioprotective effects of sevoflurane postconditioning (SpostC) are eliminated under diabetic conditions, and the underlying mechanism for this phenomenon remains unclear. Many studies have demonstrated that the hypoxia-inducible factor-1(HIF-1) signaling pathway in the myocardium is impaired under diabetic conditions. This study was to investigate whether deferoxamine (DFO)-induced activation of HIF-1 signaling pathway can restore the cardioprotective effects of SpostC in diabetic rats...
March 17, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/28306680/anaesthesia-in-patients-with-liver-disease
#13
Malgorzata H Starczewska, Wint Mon, Peter Shirley
PURPOSE OF REVIEW: The purpose of this review is to summarize the most recent up to date research data and recommendations regarding anaesthetic management of patients with liver disease undergoing surgery. The incidence of chronic liver disease (CLD) continues to rise and perioperative mortality and morbidity remains unacceptably high in this group. Meticulous preoperative assessment and carefully planned anaesthetic management are vital in improving outcomes in patients with liver disease undergoing surgery...
March 16, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28301419/effects-of-sevoflurane-on-hemodynamics-and-inducible-nitric-oxide-synthase-soluble-guanylate-cyclase-signaling-pathway-in-a-rat-model-of-pulmonary-arterial-hypertension
#14
Gang Qin, Hui Luo, Xiaoqing Yin, Lu Wang, Junjie Zhang, Yanan Cao, Zhong Zhang, Zhi Ye, E Wang
BACKGROUND: The effects of sevoflurane on right ventricular (RV) function are incompletely understood. In a rat model of experimentally induced pulmonary arterial hypertension (PAH), we studied effects of sevoflurane on RV function and the expression of inducible nitric oxide synthase/soluble guanylate cyclase (iNOS/sGC) signaling pathway. We hypothesized that sevoflurane would improve RV function in rats with PAH via a iNOS/sGC pathway. METHODS: To induce PAH, Sprague-Dawley rats were randomly assigned to treatment with monocrotaline or normal saline...
March 15, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28283250/feasibility-of-anesthesia-maintenance-with-sevoflurane-during-cardiopulmonary-bypass-a-pilot-pharmacokinetics-study
#15
Roberta Meroni, Stefano Gianni, Marcello Guarnieri, Francesco Saglietti, Marco Gemma, Alberto Zangrillo, Elena Bignami
OBJECTIVE: Adequate maintenance of hypnosis during anesthesia throughout surgery using sevoflurane alone was investigated. In addition, sevoflurane pharmacokinetics during cardiopulmonary bypass were analyzed. DESIGN: This was a pilot pharmacokinetic study. SETTING: Tertiary care university hospital. PARTICIPANTS: The study comprised 10 patients aged between 18 and 75 years who underwent elective mitral valve surgery...
December 18, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28283018/tramadol-vs-dexmedetomidine-for-emergence-agitation-control-in-pediatric-patients-undergoing-adenotonsillectomy-with-sevoflurane-anesthesia-prospective-randomized-controlled-clinical-study
#16
Nurdan Bedirli, Mehmet Akçabay, Ulku Emik
BACKGROUND: This study was designed to compare the efficacy of an intraoperative single dose administration of tramadol and dexmedetomidine on hemodynamics and postoperative recovery profile including pain, sedation, emerge reactions in pediatric patients undergoing adenotonsillectomy with sevoflurane anesthesia. METHODS: Seventy-seven patient, aged 2-12, undergoing adenotonsillectomy with sevoflurane anesthesia was enrolled in this study. Patients were randomly assigned to receive either intravenous 2 mg/kg tramadol (Group T; n = 39) or 1 μg/kg dexmedetomidine (Group D; n = 38) after intubation...
March 11, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28279665/multiple-sevoflurane-anesthesia-in-pregnant-mice-inhibits-neurogenesis-of-fetal-hippocampus-via-repressing-transcription-factor-pax6
#17
Fang Fang, Ruixue Song, Xiaomim Ling, Mengyuan Peng, Zhanggang Xue, Jing Cang
Sevoflurane is widely used in non-obstetric surgeries of pregnant women, but its influences on fetal brain are still not fully known. We set out to assess the effects of multiple maternal sevoflurane exposure on neurogenesis and cognitive dysfunction in fetus and offspring. Pregnant mice (gestational day 15.5) and cultured mouse neural stem cells (NSCs) received daily sevoflurane exposure (2.5%×2h and 4.1%×2h respectively) for three consecutive days. Cognitive function of the offspring was determined with the Morris water maze...
March 6, 2017: Life Sciences
https://www.readbyqxmd.com/read/28277329/sevoflurane-compared-with-isoflurane-minimizes-lung-damage-in-pulmonary-but-not-in-extrapulmonary-acute-respiratory-distress-syndrome-in-rats
#18
Mariana N Araújo, Cíntia L Santos, Cynthia S Samary, Luciana B B Heil, Vinicius C M Cavalcanti, Fernanda F Cruz, Nathane S Felix, Johnatas D Silva, Marcelo M Morales, Paolo Pelosi, Fatima C Fernandes, Nivaldo R Villela, Pedro L Silva, Patricia R M Rocco
BACKGROUND: Volatile anesthetics modulate inflammation in acute respiratory distress syndrome (ARDS). However, it is unclear whether they act differently depending on ARDS etiology. We hypothesized that the in vivo and in vitro effects of sevoflurane and isoflurane on lung damage would not differ in pulmonary (p) and extrapulmonary (exp) ARDS. METHODS: Twenty-four Wistar rats were randomized to undergo general anesthesia (1-2 minutes) with sevoflurane and isoflurane...
March 8, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28276488/task-channels-contribute-to-neuroprotective-action-of-inhalational-anesthetics
#19
Chengye Yao, Yu Li, Shaofang Shu, Shanglong Yao, Carl Lynch, Douglas A Bayliss, Xiangdong Chen
Postconditioning with inhalational anesthetics can reduce ischemia-reperfusion brain injury, although the cellular mechanisms for this effect have not been determined. The current study was designed to test if TASK channels contribute to their neuroprotective actions. Whole cell recordings were used to examine effects of volatile anesthetic on TASK currents in cortical neurons and to verify loss of anesthetic-activated TASK currents from TASK(-/-) mice. A transient middle cerebral artery occlusion (tMCAO) model was used to establish brain ischemia-reperfusion injury...
March 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28272748/sevoflurane-induced-isoelectric-eeg-and-burst-suppression-differential-and-antagonistic-effect-of-added-nitrous-oxide
#20
B Niu, J Y Xiao, Y Fang, B Y Zhou, J Li, F Cao, Y K Tian, W Mei
The objective of this study was to investigate whether nitrous oxide influenced the ED50 of sevoflurane for induction of isoelectric electroencephalogram (ED50isoelectric ) differently from its influence on the ED50 of sevoflurane for electroencephalogram burst suppression (ED50burst ). In a prospective, randomised, double-blind, parallel group, up-down sequential allocation study, 77 ASA physical status 1 and 2 patients received sevoflurane induction and, after tracheal intubation, were randomly allocated to receive sevoflurane with either 40% oxygen in air (control group) or 60% nitrous oxide in oxygen mixture (nitrous group)...
March 8, 2017: Anaesthesia
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