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Neonatal hypoxic ischemic encephalopathy

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https://www.readbyqxmd.com/read/29220856/prevalence-and-characteristics-of-intracranial-hemorrhages-in-neonates-with-hypoxic-ischemic-encephalopathy
#1
Rani A Bashir, Sakeer Vayalthrikkovil, Liza Espinoza, Leigh Irvine, James Scott, Khorshid Mohammad
No abstract text is available yet for this article.
December 8, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/29213143/lactate-as-an-early-predictor-of-psychomotor-development-in-neonates-with-asphyxia-receiving-therapeutic-hypothermia
#2
Renata Polackova, Dana Salounova, Lumir Kantor
AIMS: This prospective study aimed to evaluate the relationship between persistently elevated lactate values in the arterial blood of newborns with grade II and III hypoxic ischemic encephalopathy (treated with therapeutic hypothermia) and psychomotor development at 24 months. METHODS: 51 neonates of gestational age from 36 to 41 weeks receiving therapeutic hypothermia for moderate to severe hypoxic ischaemic encephalopathy had arterial blood lactate levels regularly analysed...
December 4, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/29172116/bilateral-loss-of-cortical-seps-predict-severe-mri-lesions-in-neonatal-hypoxic-ischemic-encephalopathy-treated-with-hypothermia
#3
Agnese Suppiej, Ambra Cappellari, Giacomo Talenti, Elisa Cainelli, Matteo Di Capua, Augusta Janes, Daniela Longo, Rodica Mardari, Cristina Marinaccio, Stefano Pro, Paola Sciortino, Daniele Trevisanuto, Roberta Vittorini, Renzo Manara
OBJECTIVE: The introduction of therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy calls for reevaluation of the prognostic role of somatosensory evoked potentials (SEPs). METHODS: Among 80 consecutive neonates undergoing hypothermia for hypoxic-ischemic encephalopathy, 58 performed SEPs and MRI at 4-14 days of life and were recruited in this multicenter study. SEPs were scored as: 0 (bilaterally/unilaterally recorded N20) or 1 (bilaterally absent N20)...
November 6, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29171431/effect-of-erythropoietin-combined-with-hypothermia-on-serum-tau-protein-levels-and-neurodevelopmental-outcome-in-neonates-with-hypoxic-ischemic-encephalopathy
#4
Hong-Yan Lv, Su-Jing Wu, Qiu-Li Wang, Li-Hong Yang, Peng-Shun Ren, Bao-Jun Qiao, Zhi-Ying Wang, Jia-Hong Li, Xiu-Ling Gu, Lian-Xiang Li
Although hypothermia therapy is effective to treat neonatal hypoxic-ischemic encephalopathy, many neonatal patients die or suffer from severe neurological dysfunction. Erythropoietin is considered one of the most promising neuroprotective agents. We hypothesized that erythropoietin combined with hypothermia will improve efficacy of neonatal hypoxic-ischemic encephalopathy treatment. In this study, 41 neonates with moderate/severe hypoxic-ischemic encephalopathy were randomly divided into a control group (hypothermia alone for 72 hours, n = 20) and erythropoietin group (hypothermia + erythropoietin 200 IU/kg for 10 days, n = 21)...
October 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29171427/baicalin-protects-neonatal-rat-brains-against-hypoxic-ischemic-injury-by-upregulating-glutamate-transporter-1-via-the-phosphoinositide-3-kinase-protein-kinase-b-signaling-pathway
#5
Zhi-Qing Zhou, Yong-Liang Li, Zhen-Bo Ao, Zhi-Li Wen, Qi-Wen Chen, Zheng-Gang Huang, Bing Xiao, Xiao-Hua Yan
Baicalin is a flavonoid compound extracted from Scutellaria baicalensis root. Recent evidence indicates that baicalin is neuroprotective in models of ischemic stroke. Here, we investigate the neuroprotective effect of baicalin in a neonatal rat model of hypoxic-ischemic encephalopathy. Seven-day-old pups underwent left common carotid artery ligation followed by hypoxia (8% oxygen at 37°C) for 2 hours, before being injected with baicalin (120 mg/kg intraperitoneally) and examined 24 hours later. Baicalin effectively reduced cerebral infarct volume and neuronal loss, inhibited apoptosis, and upregulated the expression of p-Akt and glutamate transporter 1...
October 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/29165765/hypothermia-in-neonatal-hypoxic-ischemic-encephalopathy-hie
#6
G Liu, Z-G Li, J-S Gao
Neonatal hypoxic-ischemic encephalopathy (HIE) significantly affects neurodevelopment in infants and is also considered as an important cause of neonatal deaths worldwide. Medical research is being focused worldwide for the development of therapeutic avenues but it is still managed by supportive care. The latest studies in the above field have shown the efficacy of prolonged cooling of neonate's head or whole body at the age of 18 months (approx.) in providing relief from the pathological state of HIE. Moreover, hypothermia is the first reported therapeutic modality that proved beneficial for HIE young patients...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29138115/active-forms-of-akt-and-erk-are-dominant-in-the-cerebral-cortex-of-newborn-pigs-that-are-unaffected-by-asphyxia
#7
Viktória Kovács, Valéria Tóth-Szűki, János Németh, Viktória Varga, Gábor Remzső, Ferenc Domoki
AIMS: Perinatal asphyxia (PA) often results in hypoxic-ischemic encephalopathy (HIE) in term neonates. Introduction of therapeutic hypothermia improved HIE outcome, but further neuroprotective therapies are still warranted. The present study sought to determine the feasibility of the activation of the cytoprotective PI-3-K/Akt and the MAPK/ERK signaling pathways in the subacute phase of HIE development in a translational newborn pig PA/HIE model. MAIN METHODS: Phosphorylated and total levels of Akt and ERK were determined by Western blotting in brain samples obtained from untreated naive, time control, and PA/HIE animals at 24-48h survival (n=3-3-6,respectively)...
November 11, 2017: Life Sciences
https://www.readbyqxmd.com/read/29125039/astrocyte-autophagy-flux-protects-neurons-against-oxygen-glucose-deprivation-and-ischemic-reperfusion-injury
#8
Xue Liu, Fengfeng Tian, Shiquan Wang, Feng Wang, Lize Xiong
The role of autophagy varies with the type of acute brain injury. In general, autophagy mediates a clear neuroprotective effect in intoxication caused by various psychoactive agents, subarachnoid hemorrhage and spinal cord injury. In contrast, autophagic cell death has also been reported to actively contribute to neuronal loss in neonatal hypoxic ischemic encephalopathy. However, it still remains to be determined whether autophagy pays a cytoprotective or a cytotoxic role in stroke. Previous studies focused primarily on the role of neurons rather than the role of astrocytes in brain injury...
November 10, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/29108501/occult-massive-visceral-fat-necrosis-following-therapeutic-hypothermia-for-neonatal-encephalopathy
#9
Salwa Khedr, Anna Piskorski, Adrienne R Bingham, Justin Goldstein, Abbot R Laptook, Monique E De Paepe
Therapeutic hypothermia (head or whole-body cooling) improves survival and neurodevelopmental outcome in term newborns with moderate-to-severe encephalopathy. Hypothermia treatment is well tolerated; the most common side effect is thrombocytopenia. In about 1% of infants, focal subcutaneous fat necrosis has been reported. We describe a case of clinically unsuspected massive visceral fat necrosis in a term infant with Apgar score 0 at 1 min ("resuscitated apparently stillborn" infant) who was treated with therapeutic hypothermia for 72 h and expired on the 25th day of life following a neonatal course complicated by severe encephalopathy, pulmonary artery hypertension, persistent thrombocytopenia, hypoglycemia, and severe basal ganglia-thalamic abnormalities on magnetic resonance imaging...
January 1, 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/29105819/neuroprotective-effect-of-licochalcone-a-against-oxygen-glucose-deprivation-reperfusion-in-rat-primary-cortical-neurons-by-attenuating-oxidative-stress-injury-and-inflammatory-response-via-the-sirt1-nrf2-pathway
#10
Xiaohong Liu, Ying Ma, Xiaodi Wei, Ting Fan
Perinatal hypoxic-ischemic encephalopathy (HIE) is a leading cause of neonatal death and neurological disability. Oxidative stress and neuroinflammation are typical pathogenic factors of HIE. Licochalcone A (LCA) exerts various biological properties, including anti-inflammatory and antioxidant activities. However, no data have been reported to elucidate the role of LCA in the development of HIE. In the present study, primary cultured rat cortical neurons were exposed to oxygen-glucose deprivation/reoxygenation (OGD/R) in vitro to simulate the in vivo situation of neonatal HIE...
November 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29099699/epidemiological-features-of-the-perinatal-risk-factors-and-neonatal-outcomes-in-georgia-pilot-study
#11
N Tskimanauri, N Khachapuridze, T Chanadiri, S Bakhtadze
The purpose of this work was to identify and evaluate the epidemiological features, like the point prevalence of the perinatal risk factors and related to them pathological conditions revealing at the neonatal period. The descriptive population based prospective pilot study of children population of age 0-2 years was con-ducted in the City Tbilisi (in clinical centers "Medcapital", "family center N3" and "Valeo"), also in medical centers of districts of Mtsketa and Dusheti in period January 2015- January 2017...
October 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29095291/relevance-of-urinary-s100b-protein-levels-as-a-short-term-prognostic-biomarker-in-asphyxiated-infants-treated-with-hypothermia
#12
Ayham Alshweki, Alejandro Pérez-Muñuzuri, Olalla López-Suárez, Ana Baña, Maria L Couce
The initial diagnosis of neonatal hypoxic-ischemic encephalopathy is based on nervous system clinical manifestations. The use of biomarkers to monitor brain injury and evaluate neuroprotective effects allows early intervention and treatment. This study was designed to determine the short-term prognostic significance of urinary S100B calcium-binding protein (S100B) in asphyxiated newborns treated with hypothermia.An observational prospective study was conducted over a period of 5 years in 31 newborns with hypoxic-ischemic encephalopathy who received therapeutic hypothermia...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29067428/effect-of-therapeutic-hypothermia-initiated-after-6-hours-of-age-on-death-or-disability-among-newborns-with-hypoxic-ischemic-encephalopathy-a-randomized-clinical-trial
#13
RANDOMIZED CONTROLLED TRIAL
Abbot R Laptook, Seetha Shankaran, Jon E Tyson, Breda Munoz, Edward F Bell, Ronald N Goldberg, Nehal A Parikh, Namasivayam Ambalavanan, Claudia Pedroza, Athina Pappas, Abhik Das, Aasma S Chaudhary, Richard A Ehrenkranz, Angelita M Hensman, Krisa P Van Meurs, Lina F Chalak, Shannon E G Hamrick, Gregory M Sokol, Michele C Walsh, Brenda B Poindexter, Roger G Faix, Kristi L Watterberg, Ivan D Frantz, Ronnie Guillet, Uday Devaskar, William E Truog, Valerie Y Chock, Myra H Wyckoff, Elisabeth C McGowan, David P Carlton, Heidi M Harmon, Jane E Brumbaugh, C Michael Cotten, Pablo J Sánchez, Anna Maria Hibbs, Rosemary D Higgins
Importance: Hypothermia initiated at less than 6 hours after birth reduces death or disability for infants with hypoxic-ischemic encephalopathy at 36 weeks' or later gestation. To our knowledge, hypothermia trials have not been performed in infants presenting after 6 hours. Objective: To estimate the probability that hypothermia initiated at 6 to 24 hours after birth reduces the risk of death or disability at 18 months among infants with hypoxic-ischemic encephalopathy...
October 24, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29053702/the-effects-of-adding-prophylactic-phenobarbital-to-therapeutic-hypothermia-in-the-term-equivalent-hypoxic-ischemic-rat
#14
Sushma Krishna, Alexandra Hutton, Eric Aronowitz, Holly Moore, Susan J Vannucci
BackgroundHypoxic-ischemic encephalopathy (HIE) is a major cause of neonatal morbidity and mortality. Therapeutic hypothermia (TH) is the only available intervention, but neuroprotection is incomplete and variable. Seizures are common in infants with HIE undergoing TH and may worsen outcome. Phenobarbital (PB) is sometimes added, although use of prophylactic PB is controversial in the neonate. We hypothesize that prophylactic PB will not reduce, and may enhance, the neuroprotective effects of TH on brain injury and motor outcomes in the postnatal day 10 (P10) hypoxic-ischemic (HI) rat...
November 22, 2017: Pediatric Research
https://www.readbyqxmd.com/read/29048405/cooling-in-neonatal-hypoxic-ischemic-encephalopathy-practices-and-opinions-on-minimum-standards-in-the-state-of-california
#15
C J Wusthoff, C L Clark, H C Glass, T K Shimotake, J Schulman, S L Bonifacio
OBJECTIVE: Although hospitals increasingly offer therapeutic hypothermia (TH), there is variable implementation of related services. We assessed current practices and opinions regarding what services should be required of centers providing TH in California. STUDY DESIGN: We surveyed neonatal intensive care unit physicians statewide regarding practices and opinions about services related to TH. RESULTS: Of the 50 participating centers (47% response rate), 66% offer TH...
October 19, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/29046881/nmnat3-is-protective-against-the-effects-of-neonatal-cerebral-hypoxia-ischemia
#16
Rafael Galindo, Marianne Banks Greenberg, Toshiyuki Araki, Yo Sasaki, Nehali Mehta, Jeffrey Milbrandt, David M Holtzman
OBJECTIVE: To determine whether the NAD+ biosynthetic protein, nicotinamide mononucleotide adenylyltransferase-3 (NMNAT3), is a neuroprotective inducible enzyme capable of decreasing cerebral injury after neonatal hypoxia-ischemia (H-I) and reducing glutamate receptor-mediated excitotoxic neurodegeneration of immature neurons. METHODS: Using NMNAT3-overexpressing mice we investigated whether increases in brain NMNAT3 reduced cerebral tissue loss following H-I. We then employed biochemical methods from injured neonatal brains to examine the inducibility of NMNAT3 and the mechanism of NMNAT3-dependent neuroprotection...
October 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/29038971/the-implementation-of-targeted-temperature-management-an-evidence-based-guideline-from-the-neurocritical-care-society
#17
Lori Kennedy Madden, Michelle Hill, Teresa L May, Theresa Human, Mary McKenna Guanci, Judith Jacobi, Melissa V Moreda, Neeraj Badjatia
BACKGROUND: Targeted temperature management (TTM) is often used in neurocritical care to minimize secondary neurologic injury and improve outcomes. TTM encompasses therapeutic hypothermia, controlled normothermia, and treatment of fever. TTM is best supported by evidence from neonatal hypoxic-ischemic encephalopathy and out-of-hospital cardiac arrest, although it has also been explored in ischemic stroke, traumatic brain injury, and intracranial hemorrhage patients. Critical care clinicians using TTM must select appropriate cooling techniques, provide a reasonable rate of cooling, manage shivering, and ensure adequate patient monitoring among other challenges...
October 16, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/29016557/future-perspectives-of-cell-therapy-for-neonatal-hypoxic-ischemic-encephalopathy
#18
REVIEW
Makoto Nabetani, Haruo Shintaku, Takashi Hamazaki
Neonatal ischemic brain injury causes permanent motor-deficit cerebral palsy. Hypoxic-ischemic encephalopathy (HIE) is a very serious condition that can result in death and disability. In 1997, we reported that irreversible neuronal cell damage is induced by the elevation of intracellular Ca ion concentration that has occurred in sequence after excess accumulation of the excitatory neurotransmitter glutamate during ischemia. We also reported that hypothermia was effective in treating ischemic brain damage in rats by suppressing energy loss and raising intracellular Ca ion concentration...
November 8, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28993251/hypoxia-ischemia-modifies-postsynaptic-glun2b-containing-nmda-receptor-complexes-in-the-neonatal-mouse-brain
#19
Fuxin Lu, Guo Shao, Yongqiang Wang, Shenheng Guan, Alma L Burlingame, Xuemei Liu, Xiao Liang, Renatta Knox, Donna M Ferriero, Xiangning Jiang
The N-methyl-d-aspartate-type glutamate receptor (NMDAR)-associated multiprotein complexes are indispensable for synaptic plasticity and cognitive functions. While purification and proteomic analyses of these signaling complexes have been performed in adult rodent and human brain, much less is known about the protein composition of NMDAR complexes in the developing brain and their modifications by neonatal hypoxic-ischemic (HI) brain injury. In this study, the postsynaptic density proteins were prepared from postnatal day 9 naïve, sham-operated and HI-injured mouse cortex...
October 6, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28991764/hypoglycaemia-in-the-newborn
#20
Orhideja Stomnaroska, Elizabeta Petkovska, Sanja Ivanovska, Snezana Jancevska, Dragan Danilovski
AIM: Severe neonatal hypoglycaemia (HG) leads to neurologic damage, mental retardation, epilepsy, impaired cardiac performance and muscle weakness. The aim was to assess the frequency and severity of HG in a population of newborns. PATIENTS AND METHODS: We investigated 739 patients with neonatal hypoglycaemia (HG) (M:F=370:369) born at the University Clinic for Gynaecology and Obstetritics in Skopje in the period 2014-2016 and treated at the neonatal intensive care unit (NICU)...
September 1, 2017: Prilozi (Makedonska Akademija Na Naukite i Umetnostite. Oddelenie za Medicinski Nauki)
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