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https://www.readbyqxmd.com/read/29054611/maternal-undernutrition-during-lactation-alters-nicotine-reward-and-dopac-dopamine-ratio-in-cerebral-cortex-in-adolescent-mice-but-does-not-affect-nicotine-induced-nachrs-upregulation
#1
Ana C Dutra-Tavares, Juliana O Silva, André L Nunes-Freitas, Vinícius M S Guimarães, Ulisses C Araújo, Ellen P S Conceição, Egberto G Moura, Patrícia C Lisboa, Cláudio C Filgueiras, Alex C Manhães, Yael Abreu-Villaça, Anderson Ribeiro-Carvalho
Early undernutrition causes long lasting alterations that affect the response to psychoactive drugs. Particularly, undernutrition during lactation affects the acute locomotor response to nicotine during adolescence, but the reward effect of continued exposure to nicotine remains unknown. The goal of this study was to investigate the effects of undernutrition during lactation on the nicotine susceptibility indexed via conditioned place preference (CPP), on dopamine content and turnover and on nicotine-induced nicotinic cholinergic receptor (nAChR) upregulation in the cerebral cortex, midbrain and hippocampus of adolescent mice...
October 17, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29039534/apurinic-apyrimidinic-endonuclease-1-ape1-contributes-to-resveratrol%C3%A2-induced-neuroprotection-against-oxygen%C3%A2-glucose-deprivation-and-re%C3%A2-oxygenation-injury-in-ht22-cells-involvement-in-reducing-oxidative-dna-damage
#2
Jiao-Ying Jia, Zhi-Gang Tan, Min Liu, Yu-Gang Jiang
Resveratrol, a naturally occurring polyphenolic compound, exhibits a neuroprotective role in models of central nervous system diseases, including cerebral ischemia/reperfusion injury. Apurinic/apyrimidinic endonuclease 1 (APE1) is a multifunctional enzyme that contributes to base excision repair of oxidative DNA damage and redox activation of transcription factors, associated with neuronal survival against hypoxic‑ischemic injury. It was hypothesized that resveratrol protects HT22 cells against oxygen‑glucose deprivation and re‑oxygenation (OGD/R)‑induced injuries through upregulation of APE1...
October 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29020604/predictors-of-favourable-outcome-after-in-hospital-cardiac-arrest-treated-with-extracorporeal-cardiopulmonary-resuscitation-a-systematic-review-and-meta-analysis
#3
REVIEW
Sonia D'Arrigo, Sofia Cacciola, Mark Dennis, Christian Jung, Eisuke Kagawa, Massimo Antonelli, Claudio Sandroni
AIMS: To identify the predictors of survival to discharge in adults resuscitated with extracorporeal cardiopulmonary resuscitation (ECPR) following in-hospital cardiac arrest (IHCA). METHODS: MEDLINE and ISI Web of Science were searched for eligible studies. Pooled Odds Ratio (OR) and Pooled Mean Difference (PMD) for each predictor were calculated. The quality of evidence (QOE) was evaluated according to the GRADE guidelines. RESULTS: Eleven studies were included totalling 856 patients...
October 8, 2017: Resuscitation
https://www.readbyqxmd.com/read/29018327/maternal-cigarette-smoke-exposure-worsens-neurological-outcomes-in-adolescent-offspring-with-hypoxic-ischemic-injury
#4
Yik L Chan, Sonia Saad, Rita Machaalani, Brian G Oliver, Bryce Vissel, Carol Pollock, Nicole M Jones, Hui Chen
Hypoxic-ischemic (HI) encephalopathy occurs in approximately 6 per 1000 term newborns leading to devastating neurological consequences, such as cerebral palsy and seizures. Maternal smoking is one of the prominent risk factors contributing to HI injury. Mitochondrial integrity plays a critical role in neural injury and repair during HI. We previously showed that maternal cigarette smoke exposure (SE) can reduce brain mitochondrial fission and autophagosome markers in male offspring. This was accompanied by increased brain cell apoptosis (active caspase-3) and DNA fragmentation (TUNEL staining)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28993802/glycemia-is-related-to-impaired-cerebrovascular-autoregulation-after-severe-pediatric-traumatic-brain-injury-a-retrospective-observational-study
#5
Adam M H Young, Hadie Adams, Joseph Donnelly, Mathew R Guilfoyle, Helen Fernandes, Mathew R Garnett, Marek Czosnyka, Peter Smielewski, Mark Plummer, Shruti Agrawal, Peter J Hutchinson
INTRODUCTION: A strong association exists between hyperglycemia and outcome in pediatric traumatic brain injury (TBI). Herein, we describe observations of serum markers of glucose metabolism in a cohort of pediatric TBI patients and how these variables are related to parameters of intracranial pathophysiology. METHODS: A retrospective analysis was performed on pediatric severe TBI patients admitted to Addenbrookes Hospital Paediatric Intensive Care Unit (PICU) between January 2001 and December 2013...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28990067/thevetiaflavone-from-wikstroemia%C3%A2-indica-ameliorates-pc12-cells-injury-induced-by-ogd-r-via-improving-ros%C3%A2-mediated-mitochondrial-dysfunction
#6
Huankai Yao, Zhenhai Yuan, Guangming Wei, Chun Chen, Jingyu Duan, Yan Li, Yunru Wang, Chunping Zhang, Yuanhua Liu
Cerebral ischemia and following reperfusion affects many people worldwide. To discover efficient therapeutic approaches, numerous natural products have been investigated. The current study investigated the protective effects of thevetiaflavone, a natural flavonoid obtained from Wikstroemia indica, and the associated mechanisms using PC12 cells induced by oxygen and glucose deprivation. As a result, thevetiaflavone improves cell viability and suppresses the leakage of lactate dehydrogenase from the cytoplasm...
October 4, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28988334/a-systematic-review-of-cerebral-microdialysis-and-outcomes-in-tbi-relationships-to-patient-functional-outcome-neurophysiologic-measures-and-tissue-outcome
#7
REVIEW
Frederick A Zeiler, Eric Peter Thelin, Adel Helmy, Marek Czosnyka, Peter J A Hutchinson, David K Menon
OBJECTIVE: To perform a systematic review on commonly measured cerebral microdialysis (CMD) analytes and their association to: (A) patient functional outcome, (B) neurophysiologic measures, and (C) tissue outcome; after moderate/severe TBI. The aim was to provide a foundation for next-generation CMD studies and build on existing pragmatic expert guidelines for CMD. METHODS: We searched MEDLINE, BIOSIS, EMBASE, Global Health, Scopus, Cochrane Library (inception to October 2016)...
October 7, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28986863/prognostic-implications-of-blood-lactate-concentrations-after-cardiac-arrest-a-retrospective-study
#8
Antonio Maria Dell'Anna, Claudio Sandroni, Irene Lamanna, Ilaria Belloni, Katia Donadello, Jacques Creteur, Jean-Louis Vincent, Fabio Silvio Taccone
BACKGROUND: Elevated lactate concentration has been associated with increased mortality after out-of-hospital cardiac arrest (CA). We investigated the variables associated with high blood lactate concentrations and explored the relationship between blood lactate and neurological outcome in this setting. METHODS: This was a retrospective analysis of an institutional database that included all adult (> 18 years) patients admitted to a multidisciplinary Department of Intensive Care between January 2009 and January 2013 after resuscitation from CA...
October 6, 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28965180/effects-of-aspirin-and-clopidogrel-on-neural-stem-cells
#9
Mina Hwang, Hyun-Hee Park, Hojin Choi, Kyu-Yong Lee, Young Joo Lee, Seong-Ho Koh
Cerebral infarction causes severe morbidity and mortality. Most patients with cerebral infarction should take antiplatelet drugs daily, so the effects of those drugs on the regeneration of the brain need to be investigated. Aspirin and clopidogrel are the most widely used antiplatelet drugs for the prevention of ischemic stroke. We investigated the effects of aspirin and clopidogrel on neural stem cells (NSCs). NSCs were dissociated from fetal rat cortex and cultured with basic fibroblast growth factor and N2 medium...
September 30, 2017: Cell Biology and Toxicology
https://www.readbyqxmd.com/read/28960438/evaluating-a-targeted-bedside-measure-of-cerebral-perfusion-in-a-nonhuman-primate-model-of-neonatal-hypoxic-ischemic-encephalopathy
#10
Eric S Peeples, Chikodinaka K Ezeokeke, Sandra E Juul, Pierre D Mourad
OBJECTIVES: To compare ultrasound-derived resistive indices (RIs) obtained at the level of the thalamus via fast Doppler ultrasound with traditional anterior cerebral artery measures in a model of neonatal hypoxic-ischemic encephalopathy and to correlate each with clinical outcomes. METHODS: Nine nonhuman primate neonates underwent no umbilical cord occlusion (n = 3), umbilical cord occlusion without hypothermia (n = 3), or umbilical cord occlusion with hypothermia (n = 3)...
September 29, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28949271/pressure-passivity-of-cerebral-mitochondrial-metabolism-is-associated-with-poor-outcome-following-perinatal-hypoxic-ischemic-brain-injury
#11
Subhabrata Mitra, Gemma Bale, David Highton, Roxanna Gunny, Cristina Uria-Avellanal, Alan Bainbridge, Magdalena Sokolska, David Price, Angela Huertas-Ceballos, Giles S Kendall, Judith Meek, Ilias Tachtsidis, Nicola J Robertson
Hypoxic ischemic encephalopathy (HIE) leads to significant morbidity and mortality. Impaired autoregulation after hypoxia-ischaemia has been suggested to contribute further to injury. Thalamic lactate/N-Acetylasperate (Lac/NAA) peak area ratio of > 0.3 on proton ((1)H) magnetic resonance spectroscopy (MRS) is associated with poor neurodevelopment outcome following HIE. Cytochrome-c-oxidase (CCO) plays a central role in mitochondrial oxidative metabolism and ATP synthesis. Using a novel broadband NIRS system, we investigated the impact of pressure passivity of cerebral metabolism (CCO), oxygenation (haemoglobin difference (HbD)) and cerebral blood volume (total haemoglobin (HbT)) in 23 term infants following HIE during therapeutic hypothermia (HT)...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28931792/effects-of-prenatal-methylmercury-exposure-from-minamata-disease-to-environmental-health-studies
#12
REVIEW
Mineshi Sakamoto, Takaaki Itai, Katsuyuki Murata
Methylmercury, the causative agent of Minamata disease, can easily penetrate the brain, and adult-type Minamata disease patients showed neurological symptoms according to the brain regions where the neurons, mainly in the cerebrum and cerebellum, were damaged. In addition, fetuses are exposed to methylmercury via the placenta from maternal fish consumption, and high-level exposure to methylmercury causes damage to the brains of infants. Typical patients with fetal-type Minamata disease (i.e., serious poisoning caused by in utero exposure to methylmercury) were born during the period of severe methylmercury pollution in 1955-1959, although they showed no abnormality during gestation nor at delivery...
2017: Nihon Eiseigaku Zasshi. Japanese Journal of Hygiene
https://www.readbyqxmd.com/read/28925731/detection-of-metabolic-pattern-following-decompressive-craniectomy-in-severe-traumatic-brain-injury-a-microdialysis-study
#13
Deepak Gupta, Raghav Singla, Anna T Mazzeo, Eric B Schnieder, Vivek Tandon, S S Kale, A K Mahapatra
OBJECTIVE: The aim of the study was to detect mitochondrial dysfunction and ischaemia in severe traumatic brain injury and their relationship with outcome. METHODS: Forty-one patients with severe traumatic brain injury (TBI) who underwent decompressive craniectomy were prospectively monitored with intracerebral microdialysis catheters (MD). Variables related to energy metabolism were studied using microdialysis. RESULTS: Twentysix patients (63...
September 19, 2017: Brain Injury: [BI]
https://www.readbyqxmd.com/read/28916775/measuring-glucose-cerebral-metabolism-in-the-healthy-mouse-using-hyperpolarized-13-c-magnetic-resonance
#14
Mor Mishkovsky, Brian Anderson, Magnus Karlsson, Mathilde H Lerche, A Dean Sherry, Rolf Gruetter, Zoltan Kovacs, Arnaud Comment
The mammalian brain relies primarily on glucose as a fuel to meet its high metabolic demand. Among the various techniques used to study cerebral metabolism, (13)C magnetic resonance spectroscopy (MRS) allows following the fate of (13)C-enriched substrates through metabolic pathways. We herein demonstrate that it is possible to measure cerebral glucose metabolism in vivo with sub-second time resolution using hyperpolarized (13)C MRS. In particular, the dynamic (13)C-labeling of pyruvate and lactate formed from (13)C-glucose was observed in real time...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28914129/maternal-high-fat-diet-programs-cerebrovascular-remodeling-in-adult-rat-offspring
#15
ChengCheng Lin, XiaoYun Wu, YuLei Zhou, Bei Shao, XiaoTing Niu, WanLi Zhang, YuanShao Lin
Maternal environmental factors such as diet have consequences on later health of the offspring. We found that maternal high-fat diet (HFD) exposure renders adult offspring brain more susceptible to ischemic injury. The present study was further to investigate whether HFD consumption during rat pregnancy and lactation influences the cerebral vasculature in adult male offspring. Besides the endothelial damage observed in the transmission electron microscopy, the MCAs of offspring from fat-fed dams fed with control diet (HFD/C) also displayed increased wall thickness and media/lumen ratio, suggesting that cerebrovascular hypertrophy or hyperplasia occurs...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28904232/effects-of-high-versus-moderate-intensity-training-on-neuroplasticity-and-functional-recovery-after-focal-ischemia
#16
COMPARATIVE STUDY
Caroline Pin-Barre, Annabelle Constans, Jeanick Brisswalter, Christophe Pellegrino, Jérôme Laurin
BACKGROUND AND PURPOSE: This study was designed to compare the effects of high-intensity interval training (HIT) and moderate-intensity aerobic training (MOD) on functional recovery and cerebral plasticity during the first 2 weeks after cerebral ischemia. METHODS: Rats were randomized as follows: control (n=15), SHAM (n=9), middle cerebral artery occlusion (n=13), middle cerebral artery occlusion at day 1 (n=7), MOD (n=13), and HIT (n=13). Incremental tests were performed at day 1 (D1) and 14 (D14) to identify the running speed associated with the lactate threshold (SLT) and the maximal speed (Smax)...
October 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28899812/the-starving-brain-overfed-meets-undernourished-in-the-pathology-of-mild-cognitive-impairment-mci-and-alzheimer-s-disease-ad
#17
REVIEW
Kelly J Gibas
Type II Diabetes affects 400 million people worldwide (IDF, 2013). The pathology is paradoxical: internal starvation activated by overfeeding. Hyperinsulinemic impairments of glucose homeostasis are treated with anti-hyperglycemics exacerbating cell starvation, inducing hypoglycemia and raising respiratory quotient. Reductions in hyperglycemia are achieved at the expense of glucose dependency and metabolic inflexibility (Gibas & Gibas, 2017). The brain is not immune from these cycles of starvation. The bioenergetic model characterizes propagation of late-onset, sporadic Alzheimer's disease as loss of molecular fidelity and compromised energy originating in brain networks with highest metabolic demand...
November 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28877346/comparable-outcome-of-out-of-hospital-cardiac-arrest-and-in-hospital-cardiac-arrest-treated-with-extracorporeal-life-support
#18
Omar Ellouze, Melitine Vuillet, Justine Perrot, Sandrine Grosjean, Anis Missaoui, Serge Aho, Ghislain Malapert, Belaid Bouhemad, Oliver Bouchot, Claude Girard
Extracorporeal life support (ECLS) has shown benefits in the management of refractory in-hospital cardiac arrest (IHCA) by improving survival. Nonetheless, the results concerning out-of-hospital refractory cardiac arrests (OHCA) remain uncertain. The aim of our investigation was to compare survival between the two groups. We realized a single-center retrospective, observational study of all patients who presented IHCA or OHCA treated with ECLS between 2011 and 2015. Multivariate analysis was realized to determine independent factors associated with mortality...
September 6, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28873019/the-effects-of-in-hospital-intravenous-cold-saline-in-postcardiac-arrest-patients-treated-with-targeted-temperature-management
#19
Nissi Suppogu, Gregory A Panza, Sena Kilic, Shreyas Gowdar, Kamala R Kallur, Ramya Jayaraman, Justin Lundbye, Antonio B Fernandez
BACKGROUND: Recent data suggest that rapid infusion of intravenous (IV) cold saline for Targeted Temperature Management (TTM) after cardiac arrest is associated with higher rates of rearrest, pulmonary edema, and hypoxia, with no difference in neurologic outcomes or survival when administered by Emergency Medical Services. We sought to determine the effects of IV cold saline administration in the hospital setting in postcardiac arrest patients to achieve TTM and its effect on clinical parameters and neurologic outcomes...
September 5, 2017: Therapeutic Hypothermia and Temperature Management
https://www.readbyqxmd.com/read/28871473/role-of-peroxiredoxin-2-in-the-protection-against-ferrous-sulfate-induced-oxidative-and-inflammatory-injury-in-pc12-cells
#20
Wenzhe Xu, Feng Li, Zhenkuan Xu, Bin Sun, Jingwei Cao, Yuguang Liu
Peroxiredoxin 2 (Prdx2) is a ubiquitous antioxidant enzyme in mammalian brain. Although a protective role of Prdx2 has been established in cerebral ischemia and several neurodegenerative diseases, its contribution against iron-induced neurocytotoxicity still remains to be determined. Accordingly, in this study, we aimed to investigate the effects of Prdx2 on iron-induced cytotoxicity using an in vitro model in which PC12 cells are exposed to ferrous sulfate (FS). The FS treatment increased Prdx2 expression, and promoted lactate dehydrogenase (LDH) release and cell apoptosis in PC12 cells, accompanied by the increase in the Bax/Bcl2 ratio, cytochrome c release, and caspase-3 cleavage...
September 4, 2017: Cellular and Molecular Neurobiology
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