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Anesthetic neurotoxicity

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https://www.readbyqxmd.com/read/28820429/propofol-s-effects-on-the-fetal-brain-for-non-obstetric-surgery
#1
REVIEW
Ajay Malhotra, Emily Yosh, Ming Xiong
While the use of Propofol has been increasing in usage for general surgical procedures since its release to market, there has been little work done on its potential link to neurotoxicity in humans. Only recently, following the release of a warning label from the United States Food and Drug Administration (USFDA) regarding a potential link to "neurotoxicity" in the neonate, did the surgical and anesthesiology communities become more aware of its potential for harm. Given the widespread use of this drug in clinical practice, the warning label naturally raised controversy regarding intrapartum Propofol usage...
August 18, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28820078/effects-of-excitotoxic-lesion-with-inhaled-anesthetics-on-nervous-system-cells-of-rodents
#2
Maria Fernanda Quiroz Padilla, Gemma Guillazo-Blanch, Magdy Sanchez, Maria Andrea Dominguez, Rosa Margaria Gomez
Different anesthesia methods can variably influence excitotoxic lesion effects on the brain. The main purpose of this review is to identify potential differences in the toxicity to nervous system cells of two common inhalation anesthesia methods, isoflurane and sevoflurane, used in combination with an excitotoxic lesion procedure in rodents. The use of bioassays in animal models has provided the opportunity to examine the role of specific molecules and cellular interactions that underlie important aspects of neurotoxic effects relating to calcium homeostasis and apoptosis activation...
August 17, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28818338/spinal-anesthesia-for-pediatric-urological-surgery-reducing-the-theoretic-neurotoxic-effects-of-general-anesthesia
#3
Emmett E Whitaker, Brianne Z Wiemann, Daniel G DaJusta, Seth A Alpert, Christina B Ching, Daryl J McLeod, Joseph D Tobias, Venkata R Jayanthi
BACKGROUND: Spinal anesthesia (SA) is an effective technique that has been used in children for years. With growing concern with regard to the risks of general anesthesia (GA), we developed a SA program to provide an alternative option. We present our initial experience with this program. OBJECTIVE: To implement a SA program at a large tertiary care pediatric center and assess the safety and efficacy of the technique as an alternative to GA for urologic surgery...
July 14, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28817401/challenges-in-the-anesthetic-management-of-ambulatory-patients-in-the-mri-suites
#4
Jasper Deen, Yzabel Vandevivere, Peter Van de Putte
PURPOSE OF REVIEW: MRI is becoming an indispensable diagnostic tool. The need for prolonged motion-free periods has substantially increased the need for deep sedation or anesthesia in a challenging environment. This review summarises recent literature with respect to pharmacological sedative strategies, nonpharmacological alternative approaches, airway management and safety issues in the ambulatory setting. RECENT FINDINGS: Most literature researches the pediatric patient population...
August 16, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28808114/anesthetic-neurotoxicity-and-the-developing-brain
#5
Anthony M-H Ho, Melinda L Fleming, Glenio B Mizubuti
No abstract text is available yet for this article.
August 14, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28740766/early-cleft-lip-repair-revisited-a-safe-and-effective-approach-utilizing-a-multidisciplinary-protocol
#6
Jeff A Hammoudeh, Thomas A Imahiyerobo, Fan Liang, Artur Fahradyan, Leo Urbinelli, Jennifer Lau, Marla Matar, William Magee, Mark Urata
BACKGROUND: The optimal timing for cleft lip repair has yet to be established. Advances in neonatal anesthesia, along with a growing body of literature, suggesting benefits of earlier cleft lip and nasal repair, have set the stage for a reexamination of current practices. METHODS: In this prospective study, cleft lip and nasal repair occurred on average at 34.8 days (13-69 days). Nasal correction was achieved primarily through molding the nasal cartilage without the placement of nasal sutures at the time of repair...
June 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28701796/camk-ii-%C3%AE-down-regulation-protects-dorsal-root-ganglion-neurons-from-ropivacaine-hydrochloride-neurotoxicity
#7
Xian-Jie Wen, Xiao-Hong Li, Heng Li, Hua Liang, Chen-Xiang Yang, Han-Bing Wang
T-type calcium channels are intimately involved in the local anesthetics neurotoxicity. Does CaMKIIγ regulate T-type calcium currents in local anesthetics neurotoxicity? This study generated pAd-CaMKIIγ and pAd-shRNA adenovirus vectors to up- and down-regulate CaMKIIγ mRNA expression in dorsal root ganglion neurons (DRG). Normal DRG (Normal group), empty vector DRG (Empty vector group), pAd-CaMKIIγ DRG (pAd-CaMKIIγ group) and pAd-shRNA DRG (pAd-shRNA group) were treated or untreated with 3 mM ropivacaine hydrochloride for 4 h...
July 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28697315/an-update-on-anesthetics-and-impact-on-the-brain
#8
Vincenzo Fodale, Vincenzo F Tripodi, Olivia Penna, Fausto Famà, Francesco Squadrito, Epifanio Mondello, Antonio David
While anesthetics are indispensable clinical tools and generally considered safe and effective, a growing concern over the potential neurotoxicity of anesthesia or specific anesthetic agents has called into question the safety of general anesthetics, especially when administered at extremes of age. Areas covered: This article reviews and updates research findings on the safety of anesthesia and anesthetics in terms of long-term neurotoxicity, with particular focus on postoperative cognitive dysfunctions, Alzheimer's disease and dementias, developing brain, post-operative depression and autism spectrum disorder...
July 11, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28654034/use-of-a-piglet-model-for-the-study-of-anesthetic-induced-developmental-neurotoxicity-aidn-a-translational-neuroscience-approach
#9
Emmett E Whitaker, Christopher Z Zheng, Bruno Bissonnette, Andrew D Miller, Tanner L Koppert, Joseph D Tobias, Christopher R Pierson, Fedias L Christofi
Anesthesia cannot be avoided in many cases when surgery is required, particularly in children. Recent investigations in animals have raised concerns that anesthesia exposure may lead to neuronal apoptosis, known as anesthesia-induced developmental neurotoxicity (AIDN). Furthermore, some clinical studies in children have suggested that anesthesia exposure may lead to neurodevelopmental deficits later in life. Nonetheless, an ideal animal model for preclinical study has yet to be developed. The neonatal piglet represents a valuable model for preclinical study, as they share a striking number of developmental similarities with humans...
June 11, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28642137/overexpression-cdc42-attenuates-isoflurane-induced-neurotoxicity-in-developmental-brain-of-rats
#10
Xi Fang, Shiyong Li, Qiang Han, Yilin Zhao, Jie Gao, Jing Yan, Ailin Luo
Nowadays many children receive operations with general anesthesia. Isoflurane is a commonly-used general anesthetic. Numbers of studies demonstrated that isoflurane induced neurotoxicity and neurobehavioral deficiency in young rats, however, the underlying mechanism remained unknown. Cell division cycle 42 (cdc42) played an important role in regulating synaptic vesicle trafficking and actin dynamics in neuron, which closely linked to synaptic plasticity and dendritic spine formation. Meanwhile, cdc42 also involved in many neurodegenerative diseases...
August 26, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28597457/safeguarding-infant-brains-a-multidisciplinary-challenge-results-of-a-survey-update-on-current-scientific-evidence-and-recommendations-on-how-to-deal-with-possible-anesthetic-drug-neurotoxicity
#11
Frank Weber, John Vlot, Rene Wijnen
No abstract text is available yet for this article.
June 8, 2017: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28586779/effect-of-anesthesia-on-the-developing-brain-infant-and-fetus
#12
Dean B Andropoulos
The potential for commonly used anesthetics and sedatives to cause neuroapoptosis and other neurodegenerative changes in the developing mammalian brain has become evident in animal studies over the past 15 years. This concern has led to a number of retrospective studies in human infants and young children, and some of these studies observed an association between exposure to general anesthesia as an infant, and later neurobehavioral problems in childhood. This association is particularly evident for prolonged or repeated exposures...
June 7, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28580085/apocynin-preserves-glutamatergic-neurons-in-the-basolateral-amygdala-in-mice-with-neonatal-sevoflurane-exposure
#13
Zhongliang Sun, Maiko Satomoto, Yushi U Adachi, Koshi Makita
BACKGROUND: Neonatal exposure to anesthetics induces neuronal apoptosis and long-term cognitive dysfunction in rodents. We showed that the nicotinamide adenine dinucleotide phosphate-oxidase inhibitor apocynin not only reduces neurotoxicity by decreasing superoxide levels and preventing mitochondrial dysfunction but also improves long-term memory impairment in neonatal mice exposed to sevoflurane. We also found that after the contextual fear conditioning test, glutamatergic neurons expressed c-Fos (neural activation) regardless of previous exposure to sevoflurane...
June 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28580073/anesthetic-induced-neurotoxicity-in-children
#14
EDITORIAL
Bon-Nyeo Koo
No abstract text is available yet for this article.
June 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/28562386/neurotoxicity-of-anesthetic-drugs-an-update
#15
Federico Bilotta, Lis A Evered, Shaun E Gruenbaum
PURPOSE OF REVIEW: This article reviews the most recently published evidence that investigated anesthesia-induced neurotoxicity in both animals and humans, especially as it pertains to the perinatal period. RECENT FINDINGS: Several recent studies have focused on better understanding the complex mechanisms that underlie intravenous and volatile anesthesia-induced neurotoxicity in animals. Adjuvant agents that target these pathways have been investigated for their effectiveness in attenuating the neuroapoptosis and neurocognitive deficits that result from anesthesia exposure, including dexmedetomidine, rutin, vitamin C, tumor necrosis factor α, lithium, apocynin, carreic acid phenethyl ester...
August 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28553642/an-update-on-drugs-used-for-lumbosacral-epidural-anesthesia-and-analgesia-in-dogs
#16
REVIEW
Paulo V M Steagall, Bradley T Simon, Francisco J Teixeira Neto, Stelio P L Luna
This review aims to report an update on drugs administered into the epidural space for anesthesia and analgesia in dogs, describing their potential advantages and disadvantages in the clinical setting. Databases searched include Pubmed, Google scholar, and CAB abstracts. Benefits of administering local anesthetics, opioids, and alpha2 agonists into the epidural space include the use of lower doses of general anesthetics (anesthetic "sparing" effect), perioperative analgesia, and reduced side effects associated with systemic administration of drugs...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28549893/anesthetic-neurotoxicity-in-congenital-hand-surgery-an-overview-of-the-evidence-and-advice-for-counseling-parents
#17
REVIEW
Michael S Gart, Santhanam Suresh, Joshua M Adkinson
Millions of children undergo general anesthesia for surgical procedures each year, the implications of which are not fully understood. Animal models demonstrate neurotoxicity and long-term cognitive impairment following exposure to common general anesthetic agents. However, it is unclear if human brains are affected in a similar fashion and what-if any-the implications on cognitive development may be. Furthermore, it is not known if these effects are additive and if they can be avoided by delaying reconstruction...
May 24, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28495520/brain-uptake-of-deltamethrin-in-rats-as-a-function-of-plasma-protein-binding-and-blood-brain-barrier-maturation
#18
Manoj Amaraneni, Jing Pang, Tanzir B Mortuza, Srinivasa Muralidhara, Brian S Cummings, Catherine A White, Charles V Vorhees, Jason Zastre, James V Bruckner
Pyrethroids, including permethrin and deltamethrin (DLM), are very widely used of insecticides. It was hypothesized that lower plasma binding and increased blood-brain barrier (BBB) penetration of DLM in immature rats contribute to the higher brain concentrations of DLM and more pronounced neurotoxicity reported in this age group. The left brain of anesthetized adult rats was perfused for 2min via a carotid artery with 1μM (14)C-DLM in: 2-5% human serum albumin (HSA); plasma from adult and 15- and 21-d-old rats; and plasma from human donors of: birth-1 week, 1-4 weeks, 4 weeks-1 year, 1-3 years and adults...
May 8, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28484490/intraluminal-administration-of-resiniferatoxin-protects-against-clostridium-difficile-toxin-a-induced-colitis
#19
Steven R Vigna
Clostridium difficile toxin A is a colonic inflammatory agent that acts partially by activation of TRPV1 (transient receptor potential vanilloid type 1). Resiniferatoxin (RTX) is an excitotoxin that activates TRPV1 at low concentrations and defunctionalizes TRPV1 at high concentrations. RTX at various doses was injected intraluminally into isolated ileal segments in anesthetized rats. After 3 hours, the treated segments were removed and inflammation was assessed. This acute treatment with RTX resulted in biphasic responses: (1) an increase in inflammation similar to that caused by toxin A and capsaicin at low doses of up to 100 ng RTX and (2) no inflammatory effect of RTX at higher doses (1-100 μg), consistent with a defunctionalizing or neurotoxic effect of RTX at high doses...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28466422/neurotoxicity-versus-neuroprotection-of-anesthetics-young-children-on-the-ropes
#20
REVIEW
Ramón Eizaga Rebollar, María V García Palacios, Javier Morales Guerrero, Luis M Torres Morera
Normal brain development in young children depends on a balance between excitation and inhibition of neurons, and alterations to this balance may cause apoptosis. During the perioperative period, both surgical stimuli and anesthetics can induce neurotoxicity. This article attempts to expand the perspective of a topical issue-anesthetic-induced neurotoxicity-by also considering the protective effect of general anesthetics against surgery-induced neurotoxicity, all of which may generate some controversy in the current literature...
August 2017: Paediatric Drugs
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