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Anesthesia, TIVA, Balanced Anesthesia, NK Cell

ABSTRACT: Anesthetic method was reported to have an impact on postoperative long-term outcome in cancer patients. In this study, we will investigate the effect of different anesthetic methods on NK cell activity, cytokine response and postoperative outcome in colorectal cancer patients undergoing CRS and HIPEC. We will compare propofol-based total intravenous anesthesia (TIVA) with balanced anesthesia to determine the effect of propofol, inhalation agent, and opioid on tumor genesis, recurrence, NK cell activity, cytokine response, and postoperative outcome.

DISEASE(S): Colorectal Cancer,Colorectal Neoplasms

PROVIDER: 66979 | ecrin-mdr-crc |

REPOSITORIES: ECRIN MDR

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Project description:Although sevoflurane is one of the most commonly used inhalational anesthetic agent, the popularity of desflurane is increasing to a similar level. The main beneficial property of desflurane is the relatively fast emergence of the patient from the anesthetic state after halting its supply compared with anesthesia using other anesthetic agents. However, there has been no comprehensive comparison of the effects of these two anesthetic agents on alterations in liver gene expression profiles in animals, including humans, to assess the kinds of biological abnormalities/changes and their levels in the host. Thus, we compared alterations in the global gene expression profiles in the livers of rats subjected to inhalational anesthesia by sevoflurane or desflurane by a next-generation sequencing method.

2024-02-21 | GSE244436 | GEO

Transcription profiling of human atrial tissue from patients undergoing coronary artery bypass graft surgery to determine the effect of anesthesia on gene expression

Project description:Anesthetic gases elicit organ protection in patients undergoing coronary artery bypass graft (CABG) surgery. This study aimed at identifying myocardial transcriptional phenotypes and anesthetic-induced changes in gene expression to predict cardiovascular biomarkers and cardiac function after off-pump CABG. Experiment Overall Design: Patients scheduled for off-pump CABG were randomized into a group with the anesthetic gas sevoflurane (n=10) or the intravenous anesthetic propofol (n=10). Atrial samples were collected at the beginning and end of bypass surgery to determine gene expression profiles.

2008-11-22 | E-GEOD-4386 | biostudies-arrayexpress

Disturbance of key cellular subproteomes upon propofol treatment is associated with increased permeability of the blood-brain barrier

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

RNA-seq of mouse cortical tissue and astrocytes after anesthesia and induction of neuronal activity

Project description:General anesthesia is a common clinical procedure yet can result in long term CNS-adverse effects, particularly in the elderly, or dementia patients. Suppression of cortical activity is a key feature of the anesthetic-induced unconscious state, with activity being a well-described regulator of pathways important for brain health. However the extent to which the effects of anesthesia go beyond simple suppression of neuronal activity is incompletely understood, as are its effects on non-neuronal cell types such as astrocytes, which are important integrators of both neuronal activity and inflammatory signalling. In order to address these questions, we performed a combination of RNA-seq and TRAP-seq (Translating Ribosome Affinity Purification, where astrocyte-specific translating mRNAs are sequenced) on mouse cortical tissue and primary cortical neurons.

2023-08-01 | E-MTAB-13054 | biostudies-arrayexpress

Transcriptome analysis of the hippocampus in late postnatal mice after repeated ketamine anesthesia

Project description:Numerous recent studies showed that early anesthesia during neurodevelopment may induce changes in specific behaviors. We further studied the effects of early anesthetic exposures regarding addiction behavior later in life. Postnatal day (PND) 16 C57BL/6 mice received ketamine anesthesia for 5 consecutive days. Addiction behavior was evaluated 1 week after anesthesia treatment. Neurological changes after repeated anesthesia were evaluated using high-performance liquid chromatography, RNA sequencing, electrophysiology studies. Repeated ketamine anesthesia during the critical neurodevelopment period increased the expression of genes involved with action potential, and induced excitatory/inhibitory (E/I) imbalance in hippocampal CA1 pyramidal neurons of male mice. Such neurological changes were associated with increases in drug-induced contextual addiction memory.

2022-07-14 | GSE175894 | GEO

Transcriptomic Response of Brain Tissue to Focused Ultrasound-Mediated Blood-Brain Barrier Disruption Depends Strongly on Anesthesia - Bulk RNA-seq

Project description:Focused ultrasound (FUS) mediated blood brain barrier disruption (BBBD) is a promising strategy for the targeted delivery of systemically-administered therapeutics to the central nervous system (CNS). Pre-clinical investigations of BBBD have been performed on different anesthetic backgrounds; however, the potential influence of the choice of anesthetic on the molecular response to BBBD is unknown, despite its potential to critically affect interpretation of experimental therapeutic outcomes. Here, using bulk RNA sequencing approaches, we comprehensively examined the transcriptomic response of both normal brain tissue and brain tissue exposed to FUS-induced BBBD in mice anesthetized with either Isoflurane with medical air (Iso) or Ketamine/Dexmedetomidine (KD). In normal murine brain tissue, Iso alone elicited minimal differential gene expression (DGE) and repressed pathways associated with neuronal signaling. KD alone, however, led to massive DGE and enrichment of pathways associated with protein synthesis. In brain tissue exposed to BBBD (1 MHz, 0.5 Hz pulse repetition frequency, 0.4 MPa peak-negative pressure), we systematically evaluated the relative effects of anesthesia, microbubbles, and FUS on the transcriptome. Of particular interest, we observed that gene sets associated with sterile inflammatory responses and cell-cell junctional activity were induced by BBBD, regardless of the choice of anesthesia. Meanwhile, gene sets associated with metabolism, platelet activity, tissue repair, and signaling pathways, were differentially affected by BBBD, with a strong dependence on the anesthetic. We conclude that the underlying transcriptomic response to FUS-mediated BBBD may be powerfully influenced by anesthesia. These findings raise considerations for the translation of FUS-BBBD delivery approaches that impact, in particular, metabolism, tissue repair, and intracellular signaling.

2020-06-11 | GSE152171 | GEO

Propofol and Sevoflurane Anesthesia in Colorectal Cancer Surgery: Incidence of Acute Kidney Injury

Project description:The goal of this observational study is to compare anesthetic modalities (intravenous propofol anesthesia with sevoflurane gas anesthesia) in patients who underwent colorectal cancer resection surgery regarding the outcome of acute kidney injury. The main questions it aims to answer are: * is there a difference in acute kidney injury incidence in the two anesthetic modalities? * is there a difference in plasma creatinine between the two anesthetic modalities? * are there any patient characteristics or intraoperative factors that effect the incidence of acute kidney injury in either anesthetic modality? The study will analyze data from the CAN clinical trial database. (Cancer and Anesthesia: Survival After Radical Surgery - a Comparison Between Propofol or Sevoflurane Anesthesia, NCT01975064)

| 2751857 | ecrin-mdr-crc

Gene expression of brain regions activated by sevoflurane and propofol

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

Astrocytes modulate a specific paraventricular thalamus-prefrontal cortex projection to enhance consciousness recovery from sevoflurane anesthesia in mice

Project description:Previous studies have proved that astrocytes may be a key neural substrate that regulates wakefulness and consciousness recovery from general anesthesia, while the exact molecular target in astrocytes is still unclear. Using virus injection and in vivo fiber photometry in mice, we found both activating astrocytes and knocking down astrocytic Kir4.1 in paraventricular thalamus (PVT) promotes the consciousness recovery from sevoflurane anesthesia. Single-cell RNA sequencing of PVT reveals two distinct cellular subtypes of glutamatergic neurons: PVTGRM and PVTChAT neurons. Patch-clamp recording results proved that Astrocytic Kir4.1-mediated modulation of sevoflurane on PVT mainly works on PVTChAT neurons. Moreover, we found that PVTChAT neurons project mainly to the mPFC. This specific paraventricular thalamus to prefrontal cortex projection is involved in recovery of consciousness from sevoflurane anesthesia indirectly through modulation of astrocytes. In summary, our findings support the novel conception that the volatile anesthetic sevoflurane can inhibit PVT astrocytic Kir 4.1 to maintain and/or increase neuronal firing of PVTChAT neurons, which mainly projects to mPFC and promotes consciousness recovery from anesthesia.

2024-07-20 | GSE240388 | GEO

Effects of Propofol Treatment in Neural Progenitors Derived from Human Induced Pluripotent Stem Cells

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

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