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Anesthetic neurotoxicity

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https://www.readbyqxmd.com/read/28424007/anesthetic-related-neurotoxicity-and-neuroimaging-in-children-a-call-for-conversation
#1
Kara A Bjur, Eric T Payne, Michael E Nemergut, Danqing Hu, Randall P Flick
Each year millions of young children undergo procedures requiring sedation or general anesthesia. An increasing proportion of the anesthetics used are provided to optimize diagnostic imaging studies such as magnetic resonance imaging. Concern regarding the neurotoxicity of sedatives and anesthetics has prompted the US Food and Drug Administration to change labeling of anesthetics and sedative agents warning against repeated or prolonged exposure in young children. This review aims to summarize the risk of anesthesia in children with an emphasis on anesthetic-related neurotoxicity, acknowledge the value of pediatric neuroimaging, and address this call for conversation...
May 2017: Journal of Child Neurology
https://www.readbyqxmd.com/read/28393934/sevoflurane-decreases-self-renewal-capacity-and-causes-c-jun-n-terminal-kinase-mediated-damage-of-rat-fetal-neural-stem-cells
#2
Zeyong Yang, Jingjing Lv, Xingxing Li, Qiong Meng, Qiling Yang, Wei Ma, Yuanhai Li, Zun Ji Ke
Increasing studies have demonstrated that sevoflurane can induce neurotoxicity in the developing brains. JNK normally promotes apoptosis. It was hypothesized that sevoflurane affected the proliferation and differentiation of FNSCs and induced cell apoptosis, which caused the learning and memory deficits via JNK pathway. Sevoflurane at a concentration of 1.2% did not induce damage on the FNSCS. However, concentrations of 2.4% and 4.8% decreased the cell viability, as shown by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, and increased apoptosis, as shown by flow cytometry...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28386342/hydrogen-rich-saline-attenuates-isoflurane-induced-caspase-3-activation-and-cognitive-impairment-via-inhibition-of-isoflurane-induced-oxidative-stress-mitochondrial-dysfunction-and-reduction-in-atp-levels
#3
Cheng Li, Lengchen Hou, Dan Chen, Fuqing Lin, Tao Chang, Mengzhu Li, Lingling Zhang, Xiaoyin Niu, Huiying Wang, Shukun Fu, Junhua Zheng
OBJECTIVES: The inhaled general anesthetic isoflurane has been shown to induce caspase-3 activation in vitro and in vivo. The underlying mechanisms and functional consequences of this activity remain unclear. Isoflurane can induce caspase-3 activation by causing accumulation of reactive oxygen species (ROS), mitochondrial dysfunction, and reduction in adenosine triphosphate (ATP) levels. This study aimed to investigate the protective effect of hydrogen, a novel antioxidant, against isoflurane-induced caspase-3 activation and cognitive impairment...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28373844/effects-of-ketamine-on-levels-of-inflammatory-cytokines-il-6-il-1%C3%AE-and-tnf-%C3%AE-in-the-hippocampus-of-mice-following-acute-or-chronic-administration
#4
Yanning Li, Ruipeng Shen, Gehua Wen, Runtao Ding, Ao Du, Jichuan Zhou, Zhibin Dong, Xinghua Ren, Hui Yao, Rui Zhao, Guohua Zhang, Yan Lu, Xu Wu
Ketamine is an injectable anesthetic and recreational drug of abuse commonly used worldwide. Many experimental studies have shown that ketamine can impair cognitive function and induce psychotic states. Neuroinflammation has been suggested to play an important role in neurodegeneration. Meanwhile, ketamine has been shown to modulate the levels of inflammatory cytokines. We hypothesized that the effects of ketamine on the central nervous system are associated with inflammatory cytokines. Therefore, we set out to establish acute and chronic ketamine administration models in C57BL/6 mice, to evaluate spatial recognition memory and emotional response, to analyze the changes in the levels of the inflammatory cytokines interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor-α (TNF-α) in the mouse hippocampus, employing behavioral tests, Western blot, quantitative reverse transcriptase-polymerase chain reaction (qRT-PCR) and immunohistochemistry...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28372649/can-we-reduce-anesthesia-exposure-neonatal-brain-mri-swaddling-vs-sedation-a-national-survey
#5
Benjamin J Heller, Francine S Yudkowitz, Scott Lipson
STUDY OBJECTIVE: Neonatal magnetic resonance imaging (MRI) is a diagnostic modality that requires minimal motion to acquire quality images. Sedation or even general anesthesia may be necessary to achieve acceptable scans. There is a growing body of literature, especially in animal studies, that links neurotoxicity with anesthetic exposure to the developing brain. There is no study outlining strategies used by neonatal intensive care units (NICU) to achieve quality MRI images with limited exposure to medications identified as possibly harmful to the developing brain...
May 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28319548/tanshinone-iia-attenuates-sevoflurane-neurotoxicity-in-neonatal-mice
#6
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/28291734/safety-assessment-of-the-aqueous-extract-of-the-flowers-of-nymphaea-lotus-linn-nymphaeaceae-acute-neuro-and-subchronic-oral-toxicity-studies-in-albinos-wistar-rats
#7
Mireille Kameni Poumeni, Danielle Claude Bilanda, Paul Désiré Dzeufiet Djomeni, Yolande Sandrine Mengue Ngadena, Marguerite Francine Mballa, Madeleine Chantal Ngoungoure, Agnès Carolle Ouafo, Théophile Dimo, Pierre Kamtchouing
BACKGROUND: Nymphaea lotus Linn (N. lotus) is a medicinal plant widely used in Cameroon popular medicine, to treat neuropsychiatric conditions, male sexual disorders or as food supplement. However, scientific data on the pharmacotoxic profile of this plant are not available. The safety of N. lotus was assessed in acute, neuro- and subchronic toxicity studies by following the OECD guidelines. Effectively, no data have been published until now in regard to its safety on the nervous system...
March 14, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/28277380/update-on-developmental-anesthesia-neurotoxicity
#8
Laszlo Vutskits, Andrew Davidson
PURPOSE OF REVIEW: Adverse long-term impact of general anesthesia on the developing brain is a widely discussed and controversial issue with potential public health relevance. The goal of this article is to give insights into the most recent experimental and clinical observations aimed to advance our understanding in this field. RECENT FINDINGS: Recent investigations demonstrate long-term behavioral consequences of early-life anesthesia exposure in nonhuman primates under experimental conditions that are translationally relevant to human clinical practice...
March 8, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28256096/dexmedetomidine-sedation-combined-with-caudal-anesthesia-for-lower-abdominal-and-extremity-surgery-in-ex-preterm-and-full-term-infants
#9
Katrin Waurick, Cristina Sauerland, Christiane Goeters
BACKGROUND: Awake caudal anesthesia is a potentially attractive option, because the administration of general anesthesia is associated with a high rate of respiratory complications and hemodynamic disturbances and potential neurotoxic effects. To facilitate the caudal puncture and subsequent surgical intervention, additional sedatives are commonly administered. AIM: We aimed to establish a new, safe, and effective anesthetic procedure for very young children with comorbidities...
March 2, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28254502/maternal-exposure-to-titanium-dioxide-nanoparticles-during-pregnancy-and-lactation-alters-offspring-hippocampal-mrna-bax-and-bcl-2-levels-induces-apoptosis-and-decreases-neurogenesis
#10
Alireza Ebrahimzadeh Bideskan, Abbas Mohammadipour, Alireza Fazel, Hossein Haghir, Houshang Rafatpanah, Mahmoud Hosseini, Aliakbar Rajabzadeh
INTRODUCTION: The usage of Titanium dioxide nanoparticles (TiO2-NPs) covers a vast area in different fields ranging from cosmetics and food to the production of drugs. Maternal exposure to TiO2-NPs during developmental period has been associated with hippocampal injury and with a decrease in learning and memory status of the offspring. However, little is known about its injury mechanism. This paper describes the in vivo neurotoxic effects of TiO2-NPs on rat offspring hippocampus during developmental period...
February 26, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28246725/anesthetic-neurotoxicity-an-emerging-role-for-glia-in-neuroprotection
#11
EDITORIAL
Josh D Bell, Creed M Stary
No abstract text is available yet for this article.
March 1, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28236766/oxidative-stress-metabolomics-profiling-and-mechanism-of-local-anesthetic-induced-cell-death-in-yeast
#12
Cory H T Boone, Ryan A Grove, Dana Adamcova, Javier Seravalli, Jiri Adamec
The World Health Organization designates lidocaine as an essential medicine in healthcare, greatly increasing the probability of human exposure. Its use has been associated with ROS generation and neurotoxicity. Physiological and metabolomic alterations, and genetics leading to the clinically observed adverse effects have not been temporally characterized. To study alterations that may lead to these undesirable effects, Saccharomyces cerevisiae grown on aerobic carbon sources to stationary phase was assessed over 6h...
February 3, 2017: Redox Biology
https://www.readbyqxmd.com/read/28235576/lidocaine-multivalent-ion-complex-as-a-potential-strategy-for-prolonged-local-anesthesia
#13
You Jin Jang, Jin Ho Lee, Tae Beom Seo, Se Heang Oh
Local anesthetics are adopted in clinical practice to manage the perioperative and/or postoperative pain. However, their relatively short duration of action limit their ability to meet clinical needs. Herein, we prepared a lidocaine/multivalent ion complex (icLD) using aqueous solutions containing positively charged LD and a multivalent counter-ion as a system for producing prolonged anesthesia. The results of the in vitro and in vivo experiments indicated that the icLD facilitates prolonged LD release even without adjuvants and thus provides nerve blockade for a long duration of action (∼14hrs) without further increase in neurotoxicity than the LD itself...
February 21, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28235527/a-patient-with-postpolio-syndrome-developed-cauda-equina-syndrome-after-neuraxial-anesthesia-a-case-report
#14
Wei-Cheng Tseng, Zhi-Fu Wu, Wen-Jinn Liaw, Su-Yang Hwa, Nan-Kai Hung
Combined spinal anesthesia and postoperative epidural analgesia is widely used in orthopedic surgery. Uncommon but serious neurologic complications of neuraxial anesthesia (NA) include direct trauma during needle or catheter insertion, central nervous system infections, and neurotoxicity of local anesthetics. Cauda equina syndrome (CES) is a rare complication after NA but can result in severe neurologic deterioration that may require surgical intervention. We present a case of a 69-year-old woman with postpolio syndrome who developed CES after combined spinal anesthesia and postoperative epidural analgesia...
February 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28228717/mild-hypothermia-attenuates-the-anesthetic-isoflurane-induced-cytotoxicity
#15
Cheng Li, Yuanlin Dong, Dan Chen, Zhongcong Xie, Yiying Zhang
The commonly used inhalation anesthetic isoflurane has been reported to induce DNA damage and cytotoxicity. However, the methods to attenuate these effects remain largely to be determined. Mild hypothermia has neuroprotective effects. We therefore set out to assess whether mild hypothermia could protect the isoflurane-induced DNA damage and cytotoxicity. Moreover, we investigated the underlying mechanisms by assessing the effects of mild hypothermia on the isoflurane-induced changes in ATP levels. H4 human neuroglioma cells were treated with 2% isoflurane for 3 or 6 h with and without mild hypothermia (35°C)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28225471/neuroanesthesiology-update
#16
Jeffrey J Pasternak, William L Lanier
We reviewed manuscripts published in 2016 that are related to the care of neurosurgical patients or the perioperative care of patients with neurological diseases. We address the broad categories of general neurosurgery and neuroanesthesiology, anesthetic neurotoxicity and neuroprotection, stroke, traumatic brain injury, and nervous system monitoring.
April 2017: Journal of Neurosurgical Anesthesiology
https://www.readbyqxmd.com/read/28224632/scoping-review-awareness-of-neurotoxicity-from-anesthesia-in-children-in-otolaryngology-literature
#17
REVIEW
Marisa A Earley, Liem T Pham, Max M April
OBJECTIVE: Review otolaryngology literature for awareness of neurotoxicity from general anesthesia in children. Recently, there has been increasing focus in anesthesia literature on the long-term effects of general anesthesia on neurodevelopment. Multiple animal models have demonstrated evidence of neurotoxicity from both inhalational and intravenous anesthetics. Cohort studies also have revealed modestly increased risk of adverse neurodevelopmental outcomes in children exposed to a single episode of general anesthesia prior to 3 to 4 years of age, with stronger evidence for multiple exposures in this age range...
February 22, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28212213/neurotoxicity-of-anesthetic-drugs-on-developing-brain
#18
Abhishek Karnwal, Maurice Lippmann
No abstract text is available yet for this article.
April 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28210917/adjuvant-agents-in-regional-anesthesia-in-the-ambulatory-setting
#19
REVIEW
Veerandra Koyyalamudi, Sudipta Sen, Shilpadevi Patil, Justin B Creel, Elyse M Cornett, Charles J Fox, Alan D Kaye
PURPOSE OF REVIEW: A majority of surgical practice has involved ambulatory centers with the number of outpatient operations in the USA doubling to 26.8 million per year. Local anesthesia delivery provides numerous benefits, including increased satisfaction, earlier discharge, and reduction in unplanned hospital admission. Further, with the epidemic of opioid mediated overdoses, local anesthesia can be a key tool in providing an opportunity to reduce the need for other analgesics postoperatively...
January 2017: Current Pain and Headache Reports
https://www.readbyqxmd.com/read/28161653/low-level-laser-therapy-lllt-accelerates-the-sternomastoid-muscle-regeneration-process-after-myonecrosis-due-to-bupivacaine
#20
Cristiane Neves Alessi Pissulin, Ana Angélica Henrique Fernandes, Alejandro Manuel Sanchez Orellana, Renata Calciolari Rossi E Silva, Selma Maria Michelin Matheus
BACKGROUND: Because of its long-lasting analgesic action, bupivacaine is an anesthetic used for peripheral nerve block and relief of postoperative pain. Muscle degeneration and neurotoxicity are its main limitations. There is strong evidence that low-level laser therapy (LLLT) assists in muscle and nerve repair. The authors evaluated the effects of a Gallium Arsenide laser (GaAs), on the regeneration of muscle fibers of the sternomastoid muscle and accessory nerve after injection of bupivacaine...
March 2017: Journal of Photochemistry and Photobiology. B, Biology
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