Effect of EEG Dual Frequency Index on Postoperative Resuscitation, Pulmonary Blood Perfusion and Short-Term Prognosis during General Anesthesia for Rectal Cancer
Ontology highlight
ABSTRACT:
DISEASE(S): Colorectal Cancer
PROVIDER: 2705330 | ecrin-mdr-crc |
REPOSITORIES: ECRIN MDR
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Project description:Background: Propofol is a short-acting anesthetic, which is often used for induction and maintenance of general anesthesia, sedation for mechanically ventilated adults and procedural sedation. Several side effects of propofol are known and a substantial number of patients suffer from post-operative delirium after propofol application. In this study, we analyzed the effect of propofol on the function and protein expression profile on a proteome-wide scale. Methods: We cultured human brain microvascular endothelial cells in the absence and presence of propofol and analyzed the permeability of the blood-brain barrier (BBB) by fluorescein passage and protein expression on a proteome-wide scale by mass spectrometry. Results: Propofol interfered with the function of the blood-brain barrier. This was not due to de-creased adhesion of propofol-treated human brain microvascular endothelial cells. The proteomic analysis revealed that some key pathways in these cells were disturbed, such as oxygen metabolism, DNA damage recognition and response to stress. Conclusions: Propofol has strong effects on protein expression which could explain several side effects of propofol.
2022-10-13 | PXD033856 | Pride
Project description:Surgical resection is the first choice of the standardized treatment scheme for glioblastoma and is performed under general anesthesia. Previous researches have shown that propofol and sevoflurane have different effects on the biological process of glioma cells from the molecular level. Some of them, for instance, control the glioma cell proliferation, invasion and migration In vitro or In vivo. We used mRNA microarray to discuss the effects of propofol and sevoflurane on gene expression in patients with glioblastoma. The correlation between DEGs and patients’ prognosis was further analyzed.
2021-06-28 | GSE179004 | GEO
Project description:Interventions: total intravenous anesthesia:Propofol anesthesia;Sevoflurane posttreatment:Sevoflurane anesthesia;Propofol combined with sevoflurane anesthesia:Propofol combined with sevoflurane anesthesia;RIPC and propofol anesthesia:Remote ischemic preconditioning and propofol anesthesia;RIPC and sevoflurane posttreatment:Remote ischemic preconditioning and sevoflurane anesthesia;RIPC and propofol combined with sevoflurane anesthesia:Remote ischemic preconditioning and propofol combined with sevoflurane anesthesia
Primary outcome(s): blood pressure;heart rate;SPO2%;Blood gas analysis;Central venous pressure;H-FABP;cTnI;TNF-a;IL-8
Study Design: Parallel
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Project description:The basic mechanisms of action for general anesthesia are not fully understood. We thought differences in the neural activation sites of different types of anesthetics and differences in gene expression changes in those brain regions may lead to differences in the incidence of side effects. We performed gene expression analysis using microarrays in the identified regions that have been related to the mechanisms of anesthetic action and side effects. Gene expression changes in these brain regions were determined for sevoflurane and propofol to understand the mechanisms that cause differences among anesthetics.
2021-12-22 | GSE192399 | GEO
Project description:Objectives: To compare free-opioid anesthesia (the combination of epidural anesthesia, intravenous lidocaine, ketamine, propofol, and sevoflurane) and opioid anesthesia (fentanyl, propofol and sevoflurane) regarding intraoperative analgesic efficacy in colectomies and rectal resections at Viet Tiep Friendship Hospital.
Methods: A prospective, randomized controlled clinical trial was performed on 98 patients who were anesthetized for colorectal surgery from December 2019 to November 2021. Patients were randomized into 2 groups: Group OA - Opioid anesthesia (n = 49): Intraoperative pain control by fentanyl; FOA group - Free-opioid anesthesia (n = 49): Intraoperative pain control by continuous infusion of lidocaine, bolus doses of ketamine combined with epidural levobupivacaine.
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Project description:1H Nuclear Magnetic Resonance (NMR) spectroscopy was used to investigate the metabolic consequences of general anesthesia in the plasma of two groups of patients with diagnosis for non-metastatic colorectal cancer and metastatic colorectal cancer with liver-metastasis, respectively. Patients were treated with Etomidate or Propofol, two frequently used sedation agents. Plasma samples were obtained via Ficoll separation. Here, we demonstrated that this procedure introduces a number of limitations for NMR-based metabolomics studies, due to the appearance of spurious signals. Nevertheless, the comparison of the 1H NMR metabolomic profiles of patients treated with Etomidate or Propofol at equipotent dose ranges was still feasible and proved that both agents significantly decrease the plasma levels of several NMR-detectable metabolites. Consequently, samples collected during anesthesia are not suitable for metabolic profiling studies aimed at patient stratification, because interpersonal variability are reduced by the overall depression of metabolites levels. On the other hand, this study showed that plasma metabolomics could represent a valuable tool to monitor the effect of different sedation agents and/or the individual metabolic response to anesthesia, providing hints for an appropriate tuning of personalized sedation procedures. In our reference groups, the metabolomic signatures were slightly different in patients anesthetized with Etomidate versus Propofol. The importance of standardized collection procedures and availability of exhaustive metadata of the experimental design for the accurate evaluation of the significance of the observed changes in metabolites levels are critically discussed.
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Project description:Propofol is an intravenous anesthetic that has been widely used in the clinical setting. Besides its anesthetic effects, propofol has been reported to influence the regulation of autonomic system. Controversies exist with regards to whether propofol exposure is safe for pregnant women and young children. The recent emergence of human induced pluripotent stem cells (hiPSCs) has provided a promising and theoretically inexhaustible source of neural progenitor cells (NPCs) for drug testing, which could be extended to in vitro experiments for anesthetics such as propofol. NPCs derived from three hiPSC lines, NES-GFP (a NESTIN-GFP reporter), USCK7 (iPSCs derived from urine derived cells), and ND2-0 (NIH), were treated with propofol at different concentrations (20, 50, 100 and 300 µM) for 6 h or 24 h. Early and late cell injury, cell proliferation and apoptosis were evaluated. Comparison of genome-wide gene expression profiles was performed for propofol-treated and untreated control iPSC-NPCs. Propofol treatment of NPCs for 6 h at the clinically relevant concentration (20 or 50 µM) did not affect cell viability, apoptosis, or proliferation, while propofol at higher concentration (100 or 300 µM) decreased NPC viability and induced apoptosis. Prolonged treatment of propofol for 24 h significantly decreased cell viability. In addition, 20 µM propofol treatment for 6 h did not alter global gene expression. Higher concentration of propofol exerted potential cytotoxicity via multiple cellular mechanisms. In summary, propofol treatment at commonly practiced clinical doses for 6 h did not have adverse effects on hiPSC-derived NPCs. In contrast, longer exposure and/or higher concentration of propofol treatment could decrease NPC viability and induce apoptosis.
2017-07-21 | GSE101724 | GEO
Project description:Interventions: Sevo:Sevoflurane inhalation anesthesia was performed during the operation;Pro:propofol intravenous anesthesia was performed during the operation;Sevo+Pro:sevoflurane—propofol combined anesthesia during the operation
Primary outcome(s): Postoperative mortality
Study Design: Parallel
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Project description:The goal of this study is to determine the host and pathogen transcriptomic response during pneumonic plague infection. Mice were infected intranasally with high dose of 800,000 cfu/mouse (1500 LD50). Mice were sacrificed at 1, 24 and 48 hours post infection and dual RNA was extracted. In order to isolate high quantities of superior quality mRNA from bacteria and mice we used a novel technique, that employed infusion of an RNA preserving reagent (RNAlater) into the lungs of the animals through the trachea under deep anesthesia prior to the collection of the organs. Unprecedently, this method enables isolation of stable dual mRNA from lungs of mice infected with Y. pestis, as early as 24 hours post infection. RNA-seq libraries were generated and sequencing of 100bp paired-end was performed on the Illumina NovaSeq 6000 system. The RNA was used for transcriptomic analyses which provided a comprehensive gene-expression profile of both the host and pathogen at 24 and 48 hours post infection.
2021-08-11 | GSE181680 | GEO