JNS-0000116543; No. of Pages 162 ARTICLE IN PRESS Journal of the Neurological Sciences (2019) xxx–xxx Contents lists available at ScienceDirect Journal of the Neurological Sciences journal homepage: www.elsevier.com/locate/jns WCN19 Journal Posters Part 3_V1 WCN19-0792 Results The final model has included 12 SNPs (sensitivity-82%, specificity- 59%). The prognostic rule has been developed Poster shift 04 - Ataxia and cerebellar disorders/autoimmune Z=−2.99+0.65*FGB:-455GNA+0.5*F2:20210GNA+0.77*F7: disorders - Part II/CNS infections - Part II/dementia - Part II/ 10976GNA+0.60*F5:1691GNA+0.60*F13:103GNT+0.63*ITGA2:807C epilepsy - Part II/functional disorders and behavioural neurology/ NT+0.35*ITGB3:1565TNC+0.21*PAI-1:-6755GN4G+0.88*MTHFR: headache/metabolic and mitochondrial diseases/neuro-critical 677СNТ+0.61*MTHFR:1298АNС+0.82*МТRR:66АNG+1.00*MTR: care/neurogenetics/neuroophthalmology/neurophysiology/neu- 2756АNG rorehabilitation/pain - Part II/sleep disorders - Part II/stem cells If the summation (Z) obtained the result greater than zero PedAIS was predicted, less than zero – absence of PedAIS. and gene therapy - Part II/training in neurology - Part II/child neurology and neuroimaging Conclusion Using logistic regression to assess the risk of carrying ’ The relationships between carrying thrombophilic genes poly- thrombophilic and folic acid enzymes genes’ SNPs is considered to morphisms and forecast of pediatric arterial ischemic strokes: the show the promising results for predicting AIS in childhood. result of investigation using logistic regression A. Rakhmatovaab, O. Lvovacd, A. Sergeevab, A. Buevicha aUral Federal University named after the first President of Russia B.N. doi:10.1016/j.jns.2019.10.1544 Yeltsin, Institute of Radio-electronics and IT, Department of Information Technology and Automation, Ekaterinburg, Russia bInstitute of Industrial Ecology UB RAS, Laboratory of Physics and Ecology, Yekaterinburg, Russia WCN19-0795 cUral Federal University, Laboratory of Neurotechnology, Yekaterinburg, Russia dUral State Medical University, Psychiatry Department, Yekaterinburg, Poster shift 04 - Ataxia AND cerebellar disorders / Autoimmune Russia disorders - Part II /CNS infections - Part II / dementia - Part II / epilepsy - Part II / functional DISORDERS and behavioral Background neurology /headache / metabolic and mitochondrial diseases / ’ The prognostic role of genes polymorphisms as a risk factor for neuro-critical care / neurogenetics /Neuroophthalmology / neu- pediatric arterial ischemic stroke (PedAIS) is not investigated rophysiology / neurorehabilitation / pain - Part II / sleep thoroughly. disorders - Part II / stem cells and gene therapy - Part II / training Objective in neurology - Part II / child neurology andneuroimaging To perform the prognostic rule for PedAIS based on the models of logistic regression using single nucleotide polymorphisms (SNPs) of The influence of combinations of genetic polymorphisms on the thrombophilic genes. probability of disability after arterial ischemic stroke in childhood Material and Methods Case-control study. 246 patients with PedAIS confirmed by brain A. Sergeevab, O. Lvovacd, A. Moskalevac, A. Kosachenkoc CT/MRI scan, vs 117 control group. 12 SNPs of thrombophilic and aUral Federal University named after the first President of Russia B.N. folic acid enzymes genes FGB:-455GNA, F2:20210GNA, F5:1691GNA, Yeltsin, Institute of Radio-electronics and IT, Department of Information F7:10976GNA, F13:103 GNT, ITGA2:807CNT, ITGB3:1565 TNC, PAI-1:- Technology and Automation, Ekaterinburg, Russia 675 5GN4G, MTHFR:677СNТ, MTHFR:1298АNС, МТRR:66АNG, bInstitute of Industrial Ecology UB RAS, Laboratory of Physics and MTR:2756 АNG were determined in blood samples in both groups Ecology, Yekaterinburg, Russia with the help of polymerase chain reaction. cUral Federal University, Laboratory of Neurotechnology, Yekaterinburg, If gene didn’t have SNPs alleles the logistic regression variable Russia was coded as zero (0), one or two SNPs alleles - as unit (1) and the dUral State Medical University, Psychiatry Department, Yekaterinburg, pair (2), respectively. Russia 0022-510X/$ – see front matter ARTICLE IN PRESS 2 Abstracts / Journal of the Neurological Sciences (2019) xxx–xxx Background bUral Federal University named after the first President of Russia B.N. Statistical models which can relate combinations of genes- Yeltsin, Laboratory of Neurotechnology, Yekaterinburg, Russia candidate polymorphisms with probability of disability in outcome cCity Clinical Hospital 23, Stroke Unit, Yekaterinburg, Russia allow to create reasonable rehabilitation program. dUral State Medical University, Psychiatry Depatment, Yekaterinburg, Russia Objective To reveal combinations of thrombophilic genes’ polymorphisms Background that can significantly determine the severe outcome of pediatric The dominant frequency band of the electroencephalogram (EEG) arterial ischemic stroke (PedAIS). background in children aged 4 to 12 months is theta band. Generators of theta oscillations are poorly understood, but medial Material and Methods septum, hippocampus and thalamus are contributors to generating Case series. The outcomes (disability/non-disability) of 173 theta band activity. Given the fact that hippocampal-prefrontal children with PedAIS have been estimated after two or more years. pathway and thalamic-prefrontal loop are significantly interlinked, Disability was defined as requirement of constant external support prefrontal cortex can be considered as area, indirectly reflecting an and replacement of the irreversibly lost functions. 84 children were activity of subcortical structures mentioned. assessed as “disabled”,89-“nondisabled”. All patients had the data of FGB:-455GNA, F2:20210GNA, Objective F5:1691GNA, F7:10976GNA, F13:103 GNT, ITGA2:807CNT, ITGB3:1565 To highlight the EEG spectral characteristics of theta activity over TNC, PAI-1:-675 5GN4G genes, each gene had three polymorphic the prefrontal regions in infants. states: 0 – no polymorphic alleles, 1 – one polymorphic allele, 2 – both alleles were polymorphic. Patients and methods/Material and methods We used the algorithm which implied the enumeration of various We examined frontal theta (4–7.9 Hz) power of high-density combinations of genes’ states and draw tables of contingency for (128-channel HCGSN) resting EEG in normal infants with typical each. For selected combinations Fisher's exact one-tailed test, odds development at two age points: at 5 months (number: 23; mean age ratio were calculated. = 5.74 months, SD = 0.255), and at 10 months (number: 18; mean A combination with odds ratio greater than 1 was defined as a age = 10.71 months, SD = 0.58). All computations have been risk factor, less than 1 - a protective one. performed in Matlab R2016b. The channels 12,19,20,23,24, 26,27,28,33,34 are selected as left channels, and symmetrically the Results right channels are considered as 5,4,118,3,124,2,123,117,122,116. The combination {0,0,1} for F5, F13, PAI-1 genes against all other The average power in the specified frequency range (e.i. a subband of combinations in those genes had odds ratio 2.62, Fisher 0.008. length 0.1Hz) is determined for each left and right channel The combination {0,1,1} for F5, F13, ITGA genes had odds ratio individually. Then the mean value of subband power is separately 0.365, Fisher 0.013. computed over the left and right channels. Finally, we compare the obtained left and right power mean values for each subband. Conclusion The proposed algorithm allows to assess how combinations of Results polymorphisms affect the probability of disability. It was found that We have revealed distinct and stable spectral peak at 4.4 Hz at combinations of genetic polymorphisms with nonzero values can both ages. have damaging effect as well as protective. Conclusion doi:10.1016/j.jns.2019.10.1545 Given the constancy of revealed spectral peak, we suppose that it may be supported by activity of pacemaker neurons of medial septum and/or thalamus. WCN19-0796 doi:10.1016/j.jns.2019.10.1546 Poster shift 04 - Ataxia and cerebellar disorders/autoimmune disorders - Part II/CNS infections - Part II/dementia - Part II/ WCN19-0797 epilepsy - Part II/functional disorders and behavioural neurology/ headache/metabolic and mitochondrial diseases/neuro-critical Poster shift 04 - Ataxia and cerebellar disorders/autoimmune care/neurogenetics/neuroophthalmology/neurophysiology/neu- disorders - Part II/CNS infections - Part II/dementia - Part II/ rorehabilitation/pain - Part II/sleep disorders - Part II/stem cells epilepsy - Part II/functional disorders and behavioural neurology/ and gene therapy - Part II/training in neurology - Part II/child headache/metabolic and mitochondrial diseases/neuro-critical neurology and neuroimaging care/neurogenetics/neuroophthalmology/neurophysiology/neu- rorehabilitation/pain - Part II/sleep disorders - Part II/stem cells Are there any constants in electroencephalography? Spectral peak in the range of theta band in infants and gene therapy - Part II/training in neurology - Part II/child neurology and neuroimaging D. Chegodaeva, P. Pavlovaa, M. Forghania, V. Gusevbc, O. Lvovabd aUral Federal University named after the first President of Russia B.N. Impaired GABA transmission is a crucial factor in the genesis of Yeltsin, Laboratory of Brain and Neurocognitive Development, Yekate- burst suppression electroencephalogram pattern: A hypothesis rinburg, Russia from neuroanatomical evidences ARTICLE IN PRESS Abstracts / Journal of the Neurological