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Hypoxic-ischemic encephalopathy

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https://www.readbyqxmd.com/read/28101531/osteopontin-is-a-blood-biomarker-for-microglial-activation-and-brain-injury-in-experimental-hypoxic-ischemic-encephalopathy
#1
Yikun Li, Eric B Dammer, Xiaohui Zhang-Brotzge, Scott Chen, Duc M Duong, Nicholas T Seyfried, Chia-Yi Kuan, Yu-Yo Sun
Clinical management of neonatal hypoxic-ischemic encephalopathy (HIE) suffers from the lack of reliable surrogate marker tests. Proteomic analysis may identify such biomarkers in blood, but there has been no proof-of-principle evidence to support this approach. Here we performed in-gel trypsin digestion of plasma proteins from four groups of 10-d-old mice [untouched and 24 h after low-dose lipopolysaccharide (LPS) exposure, hypoxia-ischemia (HI), or LPS/HI injury; n = 3 in each group) followed by liquid chromatography-tandem mass spectrometry and bioinformatics analysis to search for HI- and LPS/HI-associated brain injury biomarkers...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28099429/vitamin-d-insufficiency-in-neonatal-hypoxic-ischemic-encephalopathy
#2
Danielle W Lowe, Bruce W Hollis, Carol L Wagner, Thomas Bass, David A Kaufman, Michael J Horgan, Laurence M Givelichian, Koravangatta Sankaran, Jerome Y Yager, Lakshmi D Katikaneni, Don Wiest, Dorothea Jenkins
BACKGROUND: Vitamin D has neuroprotective and immunomodulatory properties, and deficiency is associated with worse stroke outcomes. Little is known about effects of hypoxia-ischemia or hypothermia treatment on vitamin D status in neonates with hypoxic-ischemic encephalopathy (HIE). We hypothesized vitamin D metabolism would be dysregulated in neonatal HIE altering specific cytokines involved in Th17 activation, which might be mitigated by hypothermia. METHODS: We analyzed short term relationships between 25(OH) and 1,25(OH)2 vitamin D, vitamin D binding protein, and cytokines related to Th17 function in serum samples from a multicenter randomized controlled trial of hypothermia 33(0)C for 48h after HIE birth versus normothermia in 50 infants with moderate to severe HIE...
January 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28099423/high-dose-erythropoietin-population-pharmacokinetics-in-neonates-with-hypoxic-ischemic-encephalopathy-receiving-hypothermia
#3
Adam Frymoyer, Sandra E Juul, An N Massaro, Theo K Bammler, Yvonne W Wu
BACKGROUND: High-dose erythropoietin (Epo) is a promising neuroprotective treatment in neonates with hypoxic ischemic encephalopathy (HIE) receiving hypothermia. We evaluated the pharmacokinetics and dose-exposure relationships of high-dose Epo in this population to inform future dosing strategies. METHODS: We performed a population pharmacokinetic analysis of 47 neonates with HIE treated with hypothermia who received up to 6 doses of Epo in two previous clinical trials...
January 18, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28095379/diffusion-tensor-imaging-detects-occult-cerebellar-injury-in-severe-neonatal-hypoxic-ischemic-encephalopathy
#4
Monica E Lemmon, Matthias W Wagner, Thangamadhan Bosemani, Kathryn A Carson, Frances J Northington, Thierry A G M Huisman, Andrea Poretti
BACKGROUND: Despite the benefits of whole-body hypothermia therapy, many infants with hypoxic-ischemic encephalopathy (HIE) die or have significant long-term neurodevelopmental impairment. Prospectively identifying neonates at risk of poor outcome is essential but not straightforward. The cerebellum is not classically considered to be a brain region vulnerable to hypoxic-ischemic insults; recent literature suggests, however, that the cerebellum may be involved in neonatal HIE. In this study, we aimed to assess the microstructural integrity of cerebellar and linked supratentorial structures in neonates with HIE compared to neurologically healthy neonatal controls...
January 18, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28089767/the-correlation-between-a-short-term-conventional-electroencephalography-in-the-first-day-of-life-and-brain-magnetic-resonance-imaging-in-newborns-undergoing-hypothermia-for-hypoxic-ischemic-encephalopathy
#5
Rawad Obeid, Yoshimi Sogawa, Satyanarayana Gedela, Monica Naik, Vince Lee, Richard Telesco, Jessica Wisnowski, Christine Magill, Michael J Painter, Ashok Panigrahy
OBJECTIVE: Electroencephalograph recorded in the first day of life in newborns treated with hypothermia for hypoxic-ischemic encephalopathy could be utilized as a predictive tool for the severity of brain injury on magnetic resonance imaging and mortality. STUDY DESIGN: This work was a retrospective study of newborns who were admitted for therapeutic hypothermia due to hypoxic-ischemic encephalopathy. All enrolled infants underwent encephalography within the first 24 hours of life and underwent brain magnetic resonance imaging after rewarming...
November 3, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/28079874/cerebral-modulation-of-the-autonomic-nervous-system-in-term-infants
#6
N Schneebaum Sender, R B Govindan, M T Whitehead, A N Massaro, M Metzler, J Wang, Y I Cheng, A J du Plessis
OBJECTIVE: Central topography of autonomic nervous system (ANS) function has yet to be fully deciphered. In adults it has been shown to lateralize sympathetic and parasympathetic influence predominantly to the right and left cerebral hemispheres, respectively. We examined functional topography of central ANS in newborn subjects utilizing spectral analysis of heart rate variability (HRV), an established measure of ANS function. STUDY DESIGN: We studied newborns with hypoxic-ischemic encephalopathy participating in a prospective study undergoing a therapeutic hypothermia protocol...
January 12, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28079317/human-umbilical-cord-blood-cd34-positive-cells-as-predictors-of-the-incidence-and-short-term-outcome-of-neonatal-hypoxic-ischemic-encephalopathy-a-pilot-study
#7
Sahar M A Hassanein, Mohamed Hassan Nasr Eldin, Hanaa A Amer, Adel E Abdelhamid, Moustafa El Houssinie, Abir Ibrahim
BACKGROUND AND PURPOSE: Neonatal hypoxic-ischemic encephalopathy (HIE) is one of the leading causes of neurological handicap in developing countries. Human umbilical cord blood (hUCB) CD34-positive (CD34⁺) stem cells exhibit the potential for neural repair. We tested the hypothesis that hUCB CD34⁺ stem cells and other cell types [leukocytes and nucleated red blood cells (NRBCs)] that are up-regulated during the acute stage of perinatal asphyxia (PA) could play a role in the early prediction of the occurrence, severity, and mortality of HIE...
January 2017: Journal of Clinical Neurology
https://www.readbyqxmd.com/read/28071965/standing-activity-intervention-and-motor-function-in-a-young-child-with-cerebral-palsy-a-case-report
#8
Olukemi Audu, Carol Daly
PURPOSE: There is limited evidence to fully justify the use of standing interventions for children with cerebral palsy (CP). This case report describes the impact of an 8-week standing program on motor function in a child with severe CP living in western Africa. METHODS: The subject was diagnosed with ischemic - hypoxic encephalopathy shortly after birth and with CP at 12 months of age. Gross Motor Function Classification of CP was level IV. Early attempts at physical therapy were interrupted by limited access to medical services...
January 10, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28071721/assessment-of-phospholipid-synthesis-related-biomarkers-for-perinatal-asphyxia-a-piglet-study
#9
Ángel Sánchez-Illana, Rønnaug Solberg, Isabel Lliso, Leonid Pankratov, Guillermo Quintás, Ola Didrik Saugstad, Máximo Vento, Julia Kuligowski
The prompt and reliable identification of infants at risk of hypoxic-ischemic encephalopathy secondary to perinatal asphyxia in the first critical hours is important for clinical decision-making and yet still remains a challenge. This work strives for the evaluation of a panel of metabolic biomarkers that have been associated with the hypoxic-ischemic insult in the perinatal period. Plasma and urine samples from a consolidated newborn piglet model of hypoxia and withdrawn before and at different time points after a hypoxic insult were analyzed and compared to a control group...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065791/the-neuroprotective-strategic-analysis-for-patients-with-acute-myocardial-infarction-combined-with-hypoxic-ischemic-encephalopathy-in-icu
#10
Yali Chao, Weiwei Hu, Xiaojuan Geng
BACKGROUND: We conducted this study to investigate the neuroprotective treatment strategies for patients with acute myocardial infarction (AMI) complicated with hypoxic ischemic encephalopathy (HIE) in the ICU. METHODS: A total of 83 cases that were diagnosed with secondary AMI for the first time were selected and divided into observation group (n=43) and the control group (n=40). All of patients underwent emergency or elective PCI. Patients in the control group were treated with mannitol to reduce intracranial pressure, cinepazide maleate to improve microcirculation in the brain and also given comprehensive treatments of oxygen inhalation, fluid infusion, acid-base imbalance correction, electrolyte disturbance, etc...
January 5, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28062175/intranasal-c3a-treatment-ameliorates-cognitive-impairment-in-a-mouse-model-of-neonatal-hypoxic-ischemic-brain-injury
#11
Javier Morán, Anna Stokowska, Frederik R Walker, Carina Mallard, Henrik Hagberg, Marcela Pekna
Perinatal asphyxia-induced brain injury is often associated with irreversible neurological complications such as intellectual disability and cerebral palsy but available therapies are limited. Novel neuroprotective therapies as well as approaches stimulating neural plasticity mechanism that can compensate for cell death after hypoxia-ischemia (HI) are urgently needed. We previously reported that single i.c.v. injection of complement-derived peptide C3a 1h after HI induction prevented HI-induced cognitive impairment when mice were tested as adults...
January 3, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/28062149/prediction-of-neonatal-seizures-in-hypoxic-ischemic-encephalopathy-using-electroencephalograph-power-analyses
#12
Siddharth V Jain, Amit Mathur, Preethi Srinivasakumar, Michael Wallendorf, Joseph P Culver, John M Zempel
BACKGROUND: The severity of the initial encephalopathy in neonatal hypoxic-ischemic encephalopathy correlates with seizure burden. Early electroencephalograph (EEG) background activity reflects the severity of encephalopathy. Thus, we hypothesized that early EEG background would be predictive of subsequent seizures in neonatal hypoxic-ischemic encephalopathy. METHODS: This study included infants undergoing therapeutic hypothermia at St. Louis Children's Hospital between January 2009 and April 2013...
November 11, 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/28025500/glucocorticoids-protect-neonatal-rat-brain-in-model-of-hypoxic-ischemic-encephalopathy-hie
#13
Benjamin Harding, Katherine Conception, Yong Li, Lubo Zhang
Hypoxic-ischemic encephalopathy (HIE) resulting from asphyxia in the peripartum period is the most common cause of neonatal brain damage and can result in significant neurologic sequelae, including cerebral palsy. Currently therapeutic hypothermia is the only accepted treatment in addition to supportive care for infants with HIE, however, many additional neuroprotective therapies have been investigated. Of these, glucocorticoids have previously been shown to have neuroprotective effects. HIE is also frequently compounded by infectious inflammatory processes (sepsis) and as such, the infants may be more amenable to treatment with an anti-inflammatory agent...
December 22, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28024912/early-diagnosis-and-outcome-prediction-of-neonatal-hypoxic-ischemic-encephalopathy-with-color-doppler-ultrasound
#14
B Guan, C Dai, Y Zhang, L Zhu, X He, N Wang, H Liu
PURPOSE: To describe the ultrasound presentation of the brain and cerebral hemodynamics in neonates with hypoxic-ischemic encephalopathy (HIE) by comparison with control subjects. MATERIAL AND METHODS: During June 2012 to April 2013, full term neonates who had clinical evidence of HIE were enrolled. Healthy newborns without HIE were used as a control group. Cerebral parenchyma, size of lateral ventricles and hemodynamic parameters of cerebral arteries were studied using two-dimensional duplex and color Doppler ultrasound...
December 23, 2016: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28018896/factors-influencing-neurodevelopment-after-cardiac-surgery-during-infancy
#15
REVIEW
Hedwig Hubertine Hövels-Gürich
Short- and long-term neurodevelopmental (ND) disabilities with negative impact on psychosocial and academic performance, quality of life, and independence in adulthood are known to be the most common sequelae for surviving children after surgery for congenital heart disease (CHD). This article reviews influences and risk factors for ND impairment. For a long time, the search for independent risk factors was focused on the perioperative period and modalities of cardiopulmonary bypass (CPB). CPB operations to ensure intraoperative vital organ perfusion and oxygen supply with or without circulatory arrest or regional cerebral perfusion bear specific risks...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28018155/neonatal-toxicity-from-escitalopram-use-in-utero-a-case-report
#16
Jessica Degiacomo, Sherry Luedtke
Selective serotonin reuptake inhibitor (SSRI) exposure during pregnancy can result in symptoms of serotonin syndrome or serotonin withdrawal. In contrast to other SSRIs, reports of serotonin behavioral syndrome following in utero exposure to escitalopram and citalopram are limited. We describe a case of suspected toxicity following in utero exposure to 20 mg escitalopram throughout pregnancy. The infant was transferred to our neonatal intensive unit at 9 hours of life for further evaluation of lethargy, weak cry, bradycardia, and non-reactive pupils...
November 2016: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28011948/molecular-hydrogen-affords-neuroprotection-in-a-translational-piglet-model-of-hypoxic-ischemic-encephalopathy
#17
J Nemeth, V Toth-Szuki, V Varga, V Kovacs, G Remzso, F Domoki
Hypoxic-ischemic encephalopathy (HIE) is the major consequence of perinatal asphyxia (PA) in term neonates. Although the newborn piglet is an accepted large animal PA/HIE model, there is no consensus on PA-induction methodology to produce clinically relevant HIE. We aimed to create and to characterize a novel PA model faithfully reproducing all features of asphyxiation including severe hypercapnia resulting in HIE, and to test whether H2 is neuroprotective in this model. Piglets were anaesthetised, artificially ventilated, and intensively monitored (electroencephalography, core temperature, O2 saturation, arterial blood pressure and blood gases)...
October 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28006936/pathophysiology-of-perinatal-hypoxic-ischemic-encephalopathy-biomarkers-animal-models-and-treatment-perspectives
#18
V Riljak, J Kraf, A Daryanani, P Jiruška, J Otáhal
Hypoxic-ischemic encephalopathy (HIE) is one of the leading pediatric neurological conditions causing long-term disabilities and socio-economical burdens. Nearly 20-50 % of asphyxiated newborns with HIE die within the newborn period and another third will develop severe health consequences and permanent handicaps. HIE is the result of severe systemic oxygen deprivation and reduced cerebral blood flow, commonly occurring in full-term infants. Hypoxic-ischemic changes trigger several molecular and cellular processes leading to cell death and inflammation...
December 22, 2016: Physiological Research
https://www.readbyqxmd.com/read/28002390/therapeutic-hypothermia-modulates-complement-factor-c3a-and-c5a-levels-in-a-rat-model-of-hypoxic-ischemic-encephalopathy
#19
Tushar A Shah, Jasmine E Nejad, Haree K Pallera, Frank A Lattanzio, Rawad Farhat, Parvathi S Kumar, Pamela S Hair, W Thomas Bass, Neel K Krishna
BACKGROUND: Therapeutic hypothermia (HT) is the only intervention that improves outcomes in neonatal hypoxic-ischemic encephalopathy (HIE). However, the multifactorial mechanisms by which HT impacts HIE are incompletely understood. The complement system plays a major role in the pathogenesis of ischemia-reperfusion injuries such as HIE. We have previously demonstrated that HT modulates complement activity in vitro. METHODS: Term equivalent rat pups were subjected to unilateral carotid ligation followed by hypoxia (8% O2) for 45 minutes to simulate HIE...
December 21, 2016: Pediatric Research
https://www.readbyqxmd.com/read/27993431/the-potentials-and-limitations-of-neuro-biomarkers-as-predictors-of-outcome-in-neonates-with-birth-asphyxia
#20
Angela Satriano, Francesca Pluchinotta, Francesca Gazzolo, Laura Serpero, Diego Gazzolo
Perinatal asphyxia and its complication, hypoxic-ischemic encephalopathy, are still among the major causes of perinatal mortality and morbidity. Despite accurate standard postnatal monitoring procedures, the post-insult period is crucial because at a time when radiologic pictures are still silent, brain damage may already be at a subclinical stage. Against this background, the measurement of quantitative parameters, such as constituents of nervous tissue, that are able to detect subclinical lesions at a stage when routine brain monitoring procedures are still silent, could be particularly useful...
December 16, 2016: Early Human Development
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