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https://www.readbyqxmd.com/read/28433802/role-of-environmental-stressors-in-determining-the-developmental-outcome-of-neonatal-anesthesia
#1
Ling-Sha Ju, Jiao-Jiao Yang, Nikolaus Gravenstein, Christoph N Seubert, Timothy E Morey, Colin Sumners, Terrie Vasilopoulos, Jian-Jun Yang, Anatoly E Martynyuk
BACKGROUND: The majority of studies evaluating neurocognition in humans who had procedures under anesthesia early in life found long-term deficits even though the typical anesthesia duration normalized to the human life span is much shorter than that shown to induce developmental abnormalities in rodents. Therefore, we studied whether subsequent environmental stressors contribute to deficiencies programmed by a brief neonatal etomidate exposure. METHODS: Postnatal days (P) 4, 5, or 6, Sprague-Dawley rats, pretreated with vehicle or the Na(+)-K(+)-2Cl(-) (NKCC1) inhibitor, bumetanide, received two injections of etomidate resulting in anesthesia for 2h...
April 7, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28433446/functional-magnetic-resonance-imaging-to-assess-the-neurobehavioral-impact-of-dysphotopsia-with-multifocal-intraocular-lenses
#2
Andreia M Rosa, Ângela C Miranda, Miguel Patrício, Colm McAlinden, Fátima L Silva, Joaquim N Murta, Miguel Castelo-Branco
PURPOSE: To investigate the association between dysphotopsia and neural responses in visual and higher-level cortical regions in patients who recently received multifocal intraocular lens (IOL) implants. DESIGN: Cross-sectional study. PARTICIPANTS: Thirty patients 3 to 4 weeks after bilateral cataract surgery with diffractive IOL implantation and 15 age- and gender-matched control subjects. METHODS: Functional magnetic resonance imaging (fMRI) was performed when participants viewed low-contrast grating stimuli...
April 19, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28430291/status-of-the-brain-antioxidant-system-at-different-growing-periods-after-prenatal-stress-and-n-acetyl-cysteine-administration
#3
Liegelin Kavitha Bernhardt, Sampath Madhyastha, Lakshminarayana Bairy, Anoop Kishore
<i>Prenatal stress-induced neurobehavioral deficits observed in offspring are multifactorial, including oxidative stress in the developing brain. The time by which the developing brain acquires self-defense against oxidative stress is not clear. Hence in the present study we aimed to evaluate the brain antioxidant status during different developing periods. Further the study also evaluates the role of the glutathione precursor, N-acetyl cysteine (NAC) on the brain antioxidant status. Pregnant rats were subjected to restraint stress during an early or late gestational period...
2017: Folia Neuropathologica
https://www.readbyqxmd.com/read/28424584/hif-1%C3%AE-overexpression-improves-transplanted-bone-mesenchymal-stem-cells-survival-in-rat-mcao-stroke-model
#4
Bingke Lv, Feng Li, Jianbang Han, Jie Fang, Limin Xu, Chengmei Sun, Tian Hua, Zhongfei Zhang, Zhiming Feng, Xiaodan Jiang
Bone mesenchymal stem cells (BMSCs) death after transplantation is a serious obstacle impacting on the outcome of cell therapy for cerebral infarction. This study was aimed to investigate whether modification of BMSCs with hypoxia-inducible factor 1α (Hif-1α) could enhance the survival of the implanted BMSCs. BMSCs were isolated from Wistar rats, and were infected with Hif-1α-GFP lentiviral vector or Hif-1α siRNA. The modified BMSCs were exposed to oxygen-glucose deprivation (OGD) condition, cellular viability and apoptosis were then assessed...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28424420/vitexin-protects-against-hypoxic-ischemic-injury-via-inhibiting-ca2-calmodulin-dependent-protein-kinase-ii-and-apoptosis-signaling-in-the-neonatal-mouse-brain
#5
Jia-Wei Min, Wei-Lin Kong, Song Han, Nageeb Bsoul, Wan-Hong Liu, Xiao-Hua He, Russell M Sanchez, Bi-Wen Peng
Neonatal hypoxic-ischemic is a major cause of death and disability in neonates. In this study, we suggest for the first time that pretreatment with vitexin may suppress a pro-apoptotic signaling pathway in hypoxic-ischemic neuronal injury in neonates by inhibition of the phosphorylation of Ca2+/Calmodulin-dependent protein kinase II. Here we found that vitexin pretreatment reduced brain infarct volume in a dose-dependent manner. In addition, vitexin decreased the number of TUNEL-positive cells and brain atrophy...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422948/beyond-the-uterine-environment-nonhuman-primate-model-to-investigate-maternal-fetal-and-neonatal-outcomes-following-chronic-intrauterine-infection
#6
Meredith A Kelleher, Zheng Liu, Xiaojie Wang, Christopher D Kroenke, Lisa A Houser, Brandy L Dozier, Lauren D Martin, Ken B Waites, Cindy McEvoy, Robert L Schelonka, Peta L Grigsby
BACKGROUND: Intrauterine infection is a significant cause of early preterm birth. We have developed a fetal-neonatal model in the rhesus macaque to determine the impact of chronic intrauterine infection with Ureaplasma parvum on early neonatal reflexes and brain development. METHODS: Time-mated, pregnant rhesus macaques were randomized to be inoculated with U. parvum (serovar 1; 10(5)cfu) or control media at ~120 dGA. Neonates were delivered by elective hysterotomy at 135-147 dGA (term=167d) stabilized and cared for in our nonhuman primate neonatal intensive care unit...
April 19, 2017: Pediatric Research
https://www.readbyqxmd.com/read/28421540/maternal-folic-acid-supplementation-during-pregnancy-improves-neurobehavioral-development-in-rat-offspring
#7
Xinyan Wang, Wen Li, Shou Li, Jing Yan, John X Wilson, Guowei Huang
Maternal folate status during pregnancy may influence central nervous system (CNS) development in offspring. However, the recommended intakes of folic acid for women of childbearing age differ among countries and there is still no consensus about whether folic acid should be supplemented continuously throughout pregnancy. We hypothesized that folic acid supplementation may be more beneficial for offspring's neurobehavioral development if prolonged throughout pregnancy instead of being limited to the periconceptional period...
April 18, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28420294/smart-recognising-the-value-of-existing-practice-and-introducing-recent-developments-leaving-no-stone-unturned-in-the-assessment-and-treatment-of-the-pdoc-patient
#8
H Gill-Thwaites, K E Elliott, R Munday
Over the last 25 years there have been a number of papers highlighting the issues of high rates of misdiagnosis in prolonged disorders of consciousness (PDOC) (Andrews, K., Murphy, L., Munday, R., & Littlewood, C. (1996). Misdiagnosis of the vegetative state: Retrospective study in a rehabilitation unit. BMJ, 313(7048), 13-16; Childs, N. L., Mercer, W. N., & Childs, H. W. (1993). Accuracy of diagnosis of persistent vegetative state. Neurology, 43(8), 1465-1467). Surprisingly, these rates still remain at the same level despite defined criteria for diagnosis (Schnakers, C...
April 18, 2017: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/28419872/stimulation-of-the-brain-serotonin-receptor-7-rescues-mitochondrial-dysfunction-in-female-mice-from-two-models-of-rett-syndrome
#9
Daniela Valenti, Lidia de Bari, Daniele Vigli, Enza Lacivita, Marcello Leopoldo, Giovanni Laviola, Rosa Anna Vacca, Bianca De Filippis
Rett syndrome (RTT) is a rare neurodevelopmental disorder, characterized by severe behavioral and physiological symptoms. Mutations in the methyl CpG binding protein 2 gene (MECP2) cause more than 95% of classic cases, and currently there is no cure for this devastating disorder. Recently we have demonstrated that neurobehavioral and brain molecular alterations can be rescued in a RTT mouse model, by pharmacological stimulation of the brain serotonin receptor 7 (5-HT7R). This member of the serotonin receptor family, crucially involved in the regulation of brain structural plasticity and cognitive processes, can be stimulated by systemic repeated treatment with LP-211, a brain-penetrant selective agonist...
April 15, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28414775/xp11-22-deletions-encompassing-cenpvl1-cenpvl2-maged1-and-gspt2-as-a-cause-of-syndromic-x-linked-intellectual-disability
#10
Christina Grau, Molly Starkovich, Mahshid S Azamian, Fan Xia, Sau Wai Cheung, Patricia Evans, Alex Henderson, Seema R Lalani, Daryl A Scott
By searching a clinical database of over 60,000 individuals referred for array-based CNV analyses and online resources, we identified four males from three families with intellectual disability, developmental delay, hypotonia, joint hypermobility and relative macrocephaly who carried small, overlapping deletions of Xp11.22. The maximum region of overlap between their deletions spanned ~430 kb and included two pseudogenes, CENPVL1 and CENPVL2, whose functions are not known, and two protein coding genes-the G1 to S phase transition 2 gene (GSPT2) and the MAGE family member D1 gene (MAGED1)...
2017: PloS One
https://www.readbyqxmd.com/read/28413924/erythropoietin-attenuates-axonal-injury-after-middle-cerebral-artery-occlusion-in-mice
#11
Rongliang Wang, Haiping Zhao, Jincheng Li, Yunxia Duan, Zhibin Fan, Zhen Tao, Fei Ju, Feng Yan, Yumin Luo
OBJECTIVE: Erythropoietin (EPO) confers potent neuroprotection against ischemic injury through a variety of mechanisms. However, the protective effect of EPO on axons after cerebral ischemia in adult mice is rarely covered. The purpose of this study was to investigate the potential neuroprotective effects of EPO on axons in mice after cerebral ischemia. METHODS: A total of 30 adult male C57 BL/6 mice were treated with EPO (5000 IU/kg) or vehicle after transient middle cerebral artery occlusion (MCAO)...
April 16, 2017: Neurological Research
https://www.readbyqxmd.com/read/28413697/acute-ethanol-exposure-during-late-mouse-neurodevelopment-results-in-long-term-deficits-in-memory-retrieval-but-not-in-social-responsiveness
#12
Katherine Houlé, Myshake Abdi, Erin B D Clabough
OBJECTIVE: Prenatal alcohol exposure can result in neurological changes in affected individuals and may result in the emergence of a broad spectrum of neurobehavioral abnormalities termed fetal alcohol spectrum disorders (FASD). The effects of ethanol exposure during development are both time and dose dependent. Although many animal models of FASD use more chronic ethanol exposure, acute developmental alcohol exposure may also cause long-lasting neuronal changes. Our research employed behavioral measures to assess the effects of a single early postnatal ethanol intoxication event in mice...
April 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28413319/black-ginseng-enriched-chong-myung-tang-extracts-improve-spatial-learning-behavior-in-rats-and-elicit-anti-inflammatory-effects-in%C3%A2-vitro
#13
Evelyn Saba, Da-Hye Jeong, Seong-Soo Roh, Seung-Hyung Kim, Sung-Dae Kim, Hyun-Kyoung Kim, Man-Hee Rhee
BACKGROUND: Chong-Myung-Tang (CMT) extract is widely used in Korea as a traditional herbal tonic for increasing memory capacity in high-school students and also for numerous body ailments since centuries. The use of CMT to improve the learning capacity has been attributed to various plant constituents, especially black ginseng, in it. Therefore, in this study, we have first investigated whether black ginseng-enriched CMT extracts affected spatial learning using the Morris water maze (MWM) test...
April 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/28413083/a-novel-nuclear-xenobiotic-receptors-ahr-pxr-car-mediated-mechanism-of-dehp-induced-cerebellar-toxicity-in-quails-coturnix-japonica-via-disrupting-cyp-enzyme-system-homeostasis
#14
Zheng-Hai Du, Jun Xia, Xiao-Chen Sun, Xue-Nan Li, Cong Zhang, Hua-Shan Zhao, Shi-Yong Zhu, Jin-Long Li
Di-(2-ethylhexyl)-phthalate (DEHP) is causing serious health hazard in wildlife animal and human through environment and food chain, including the effect of brain development and impacted neurobehavioral outcomes. However, DEHP exposure caused cerebellar toxicity in bird remains unclear. To evaluate DEHP-exerted potential neurotoxicity in cerebellum, male quails were exposed with 0, 250, 500 and 750 mg/kg BW/day DEHP by gavage treatment for 45 days. Neurobehavioral abnormality and cerebellar histopathological alternation were observed in DEHP-induced quails...
April 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28412917/is-there-a-teratogenicity-risk-associated-with-cannabis-and-synthetic-cannabimimetics-spice-intake
#15
Laura Orsolini, Duccio Papanti, John Corkery, Maria Antonietta De Luca, Cristina Cadoni, Gaetano Di Chiara, Fabrizio Schifano
BACKGROUND: Substance use, including cannabis, has been documented amongst women both in the pre-conception period and during pregnancy, particularly during the 1st trimester, which is clearly the most critical period in the organogenesis. The recent emergence on the drug market of synthetic cannabimimetics/SC ('spice') may represent a new challenge for clinicians. OBJECTIVE: A literature overview on the teratogenicity profile of both cannabis and synthetic cannabimimetics was here carried out...
April 13, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28412607/effect-of-early-postnatal-exposure-to-valproate-on-neurobehavioral-development-and-regional-bdnf-expression-in-two-strains-of-mice
#16
Kevin G Bath, Tiare Pimentel
Valproate has been used for over 30years as a first-line treatment for epilepsy. In recent years, prenatal exposure to valproate has been associated with teratogenic effects, limiting its use in women that are pregnant or of childbearing age. However, despite its potential detrimental effects on development, valproate continues to be prescribed at high rates in pediatric populations in some countries. Animal models allow us to test hypotheses regarding the potential effects of postnatal valproate exposure on neurobehavioral development, as well as identify potential mechanisms mediating observed effects...
April 12, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28410485/impact-of-posttraumatic-stress-symptom-dimensions-on-psychophysiological-reactivity-to-threat-and-reward
#17
Lynne Lieberman, Stephanie M Gorka, Carter J Funkhouser, Stewart A Shankman, K Luan Phan
Posttraumatic stress symptoms (PTSS) are associated with significant distress and impairment. Research has therefore focused on identifying neurobehavioral deficits that contribute to the pathophysiology of PTSS. One issue that has contributed to difficulty in identifying these deficits is the highly heterogeneous nature of PTSS. PTSS is comprised of four, factor analytically distinct dimensions of symptoms - re-experiencing, avoidance, hyperarousal, and negative cognitions and mood. It is therefore unlikely that there is one single mechanism that accounts for all of PTSS and elucidating neurobehavioral deficits associated with specific PTSS symptom dimensions may better inform clinical prevention and intervention efforts...
April 7, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28407444/familial-18q12-2-deletion-supports-the-role-of-rna-binding-protein-celf4-in-autism-spectrum-disorders
#18
Rita Barone, Marco Fichera, Mariaclara De Grandi, Marta Battaglia, Valeria Lo Faro, Teresa Mattina, Renata Rizzo
Deletion of 18q12.2 is an increasingly recognized condition with a distinct neuropsychiatric phenotype. Twenty-two patients have been described with overlapping neurobehavioral disturbances including developmental delay, intellectual disability of variable degree, seizures, motor coordination disorder, behavioral/emotional disturbances, and autism spectrum disorders. The CUGBP Elav-like family member 4 (CELF4) gene at 18q12.2 encodes a RNA-binding protein that links to RNA subsets involved in pre- and postsynaptic neurotransmission including almost 30% of potential autism-related genes...
April 13, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28407443/the-effect-of-training-on-noise-reduction-in-neonatal-intensive-care-units
#19
Mujde Calikusu Incekar, Serap Balci
PURPOSE: Noise, an environmental stimulus, is especially important in the neurobehavioral development of newborns and brain development of infants at high risk. Conditions in the neonatal intensive care units (NICUs) may cause certain sensory stimuli that are not appropriate for the development of newborns, especially preterm infants. This study was conducted in order to determine noise levels in the NICU and to evaluate the effect of training provided for noise control. DESIGN AND METHODS: This study was conducted as a pretest-posttest quasiexperimental design between September and November 2014 in a 30-bed NICU of a tertiary hospital in Istanbul...
April 13, 2017: Journal for Specialists in Pediatric Nursing: JSPN
https://www.readbyqxmd.com/read/28406931/a-model-of-periventricular-leukomalacia-pvl-in-neonate-mice-with-histopathological-and-neurodevelopmental-outcomes-mimicking-human-pvl-in-neonates
#20
Nahla Zaghloul, Hardik Patel, Mohamed Nagy Ahmed
Periventricular leukomalacia (PVL), a brain injury affecting premature infants is commonly associated with cerebral palsy. PVL results from hypoxia-ischemia (HI) with or without infection and is characterized by white matter necrotic lesions, hypomyelination, microglial activation, astrogliosis, and neuronal death. It is important to study a PVL mouse model that mimics human PVL in symptomatology, anatomic and molecular basis. In our neonate mice model, bilateral carotid arteries were temporary ligated at P5 followed by hypoxic exposure (FiO2 of 8% for 20 min...
2017: PloS One
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