1,721,129 research outputs found
Do Seizures Promote Mesial Temporal Sclerosis?
No full textSeveral studies have shown a significant relationship between a history of prolonged febrile seizures (FS) in early childhood and mesial temporal sclerosis (MTS). However, population based studies have not shown a significant relationship between FS early in life and subsequent temporal lobe epilepsy (TLE). The interpretation of these observations remains controversial. One possibility is that the early FS damages the hippocampus and is therefore a cause of MTS. Another possibility is that the child had a prolonged FS because the hippocampus was previously damaged due to a prenatal or perinatal insult or to a genetic predisposition. Recent studies have shown that prolonged and focal FS can produce acute hippocampal injury that evolves to hippocampal atrophy and that complex FS can actually originate in the temporal lobes in some children. MRI studies in familial TLE demonstrated evidence of MTS in patients with benign epilepsy and seizure remission, or even individuals who had a single seizure, suggesting that the relationship between MTS and severity of TLE might be more complex than previously suspected. MTS most likely has different causes and results from complex interactions among genetic and environmental factors.93145148Abou-Khalil, B., Andermann, E., Andermann, F., Olivier, A., Quesney, L.F., Temporal lobe epilepsy after prolonged febrile convulsions: Excellent outcome after surgical treatment (1993) Epilepsia, 34 (5), pp. 878-883Cendes, F., Andermann, F., Dubeau, F., Gloor, P., Evans, A., Jones-Gotman, M., Early childhood prolonged febrile convulsions, atrophy and sclerosis of mesial structures and temporal lobe epilepsy: An MRI volumetric study (1993) Neurology, 43, pp. 1083-1087Falconer, M.A., Genetic and related aetiological factors in temporal lobe epilepsy. A review (1971) Epilepsia, 12 (1), pp. 13-31Falconer, M.A., Mesial temporal (Ammon's horn) sclerosis as a common cause of epilepsy. Aetiology, treatment, and prevention (1974) Lancet, 2 (7883), pp. 767-770Falconer, M.A., Serafetinides, E.A., Corselis, J.A.N., Etiology and pathogenesis of temporal lobe epilepsy (1964) Arch Neurol, 10, pp. 233-248Kuks, J.B., Cook, M.J., Fish, D.R., Stevens, J.M., Shorvon, S.D., Hippocampal sclerosis in epilepsy and childhood febrile seizures (1993) Lancet, 342, pp. 1391-1394Maher, J., McLachlan, R.S., Febrile convulsions. Is seizure duration the most important predictor of temporal lobe epilepsy? (1995) Brain, 118 (PART 6), pp. 1521-1528Ounstead, C., Lindsay, J., Norman, R., (1966) Biological factors in temporal lobe epilepsy, , London: Willian Heinemann Medical Books, LtdTrenerry, M.R., Jack Jr., C.R., Sharbrough, F.W., Cascino, G.D., Hirschorn, K.A., Marsh, W.R., Quantitative MRI hippocampal volumes: Association with onset and duration of epilepsy, and febrile convulsions in temporal lobectomy patients (1993) Epilepsy Res, 15, pp. 247-252Zimmerman, H.M., The histopathology of convulsive disorders in children (1940) J Pediatr, 13, pp. 359-390Camfield, P., Camfield, C., Gordon, K., Dooley, J., What types of epilepsy are preceded by febrile seizures? A population-based study of children (1994) Dev Med Child Neurol, 36 (10), pp. 887-892Nelson, K.B., Ellenberg, J.H., Predictors of epilepsy in children who have experienced febrile seizures (1976) N Engl J Med, 295 (19), pp. 1029-1033Shinnar, S., Prolonged febrile seizures and mesial temporal sclerosis [editorialcomment] (1998) Ann Neurol, 43 (4), pp. 411-412Sloviter, R.S., Pedley, T.A., Subtle hippocampal malformation: Importance in febrile seizures and development of epilepsy [editorialcomment] (1998) Neurology, 50 (4), pp. 846-849Hamati-Haddad, A., Abou-Khalil, B., Epilepsy diagnosis and localization in patients with antecedent childhood febrile convulsions (1998) Neurology, 50 (4), pp. 917-922VanLandingham, K.E., Heinz, E.R., Cavazos, J.E., Lewis, D.V., Magnetic resonance imaging evidence of hippocampal injury after prolonged focal febrile convulsions (1998) Ann Neurol, 43 (4), pp. 413-426Cendes, F., Cook, M.J., Watson, C., Andermann, F., Fish, D.R., Shorvon, S.D., Frequency and characteristics of dual pathology in patients with lesional epilepsy (1995) Neurology, 45 (11), pp. 2058-2064Davies, K.G., Hermann, B.P., Dohan, F.C., Foley, K.T., Bush, A.J., Wyler, A.R., Relationship of hippocampal sclerosis to duration and age of onset of epilepsy, and childhood febrile seizures in temporal lobectomy patients (1996) Epilepsy Res, 24 (2), pp. 119-126Fernandez, G., Effenberger, O., Vinz, B., Steinlein, O., Elger, C.E., Dohring, W., Hippocampal malformation as a cause of familial febrile convulsions and subsequent hippocampal sclerosis (1998) Neurology, 50 (4), pp. 909-917Kobayashi, E., Lopes-Cendes, I., Guerreiro, C.A., Sousa, S.C., Guerreiro, M.M., Cendes, F., Seizure outcome and hippocampal atrophy in familial mesial temporal lobe epilepsy (2001) Neurology, 56 (2), pp. 166-172Berkovic, S.F., Mcintosh, A., Howell, R.A., Mitchell, A., Sheffield, L.J., Hopper, J.L., Familial temporal lobe epilepsy - a common disorder identified in twins (1996) Ann Neurol, 40 (2), pp. 227-235Raymond, A.A., Fish, D.R., Stevens, J.M., Cook, M.J., Sisodiya, S.M., Shorvon, S.D., Association of hippocampal sclerosis with cortical dysgenesis in patients with epilepsy (1994) Neurology, 44 (10), pp. 1841-1845Cendes, F., Andermann, F., Gloor, P., Lopes-Cendes, I., Andermann, E., Melanson, D., Atrophy of mesial structures in patients with temporal lobe epilepsy: Cause or consequence of repeated seizures? (1993) Ann Neurol, 34 (6), pp. 795-801Garcia, P.A., Laxer, K.D., van der Grond, J., Hugg, J.W., Matson, G.B., Weiner, M.W., Correlation of seizure frequency with N-acetylaspartate levels determined by 1H magnetic resonance spectroscopic imaging (1997) Magn Reson Imaging, 15 (4), pp. 475-478Kalviainen, R., Salmenpera, T., Partanen, K., Vainio, P., Riekkinen, P., Pitkanen, A., Recurrent seizures may cause hippocampal damage in temporal lobe epilepsy [see comments] (1998) Neurology, 50 (5), pp. 1377-1382Mouritzen Dan, A.M., Hippocampal neuron loss in epilepsy and after experimental seizures (1982) Acta Neurol Scand, 66, pp. 601-642Pitkanen, A., Laakso, M., Kalviainen, R., Partanen, K., Vainio, P., Lehtovirta, M., Severity of hippocampal atrophy correlates with the prolongation of MRI T-2 relaxation in temporal lobe epilepsy but not in Alzheimer's disease (1996) Neurology, 46 (6), pp. 1724-1730Tasch, E., Cendes, F., Li, L.M., Dubeau, F., Andermann, F., Arnold, D.L., Neuroimaging evidence of progressive neuronal loss and dysfunction in temporal lobe epilepsy (1999) Ann Neurol, 45 (5), pp. 568-576Mathern, G.W., Babb, T.L., Vickrey, B.G., Melendez, M., Pretorius, J.K., The clinical-pathogenic mechanisms of hippocampal neuron loss and surgical outcomes in temporal lobe epilepsy (1995) Brain, 118 (PART 1), pp. 105-118Mathern, G.W., Pretorius, J.K., Babb, T.L., Influence of the type of initial precipitating injury and at what age it occurs on course and outcome in patients with temporal lobe seizures (1995) J Neurosurg, 82 (2), pp. 220-227Theodore, W., Wasterlain, C.G., Do early seizures beget epilepsy? [editorialcomment] (1999) Neurology, 53 (5), pp. 898-899Van Paesschen, W., Connelly, A., King, M.D., Jackson, G.D., Duncan, J.S., The spectrum of hippocampal sclerosis: A quantitative magnetic resonance imaging study (1997) Ann Neurol, 41 (1), pp. 41-51Berg, A.T., Shinnar, S., Do seizures beget seizures? An assessment of the clinical evidence in humans (1997) J Clin Neurophysiol, 14 (2), pp. 102-110Ben-Ari, Y., Limbic seizures and brain damage produced by kainic acid: Mechanisms and relevance to human temporal epilepsy (1985) Neuroscience, 14, pp. 375-403Collingridge, G.L., Bliss, T.V.P., NMDA-receptors - their role in longterm potentiation (1987) TINS, 10, pp. 288-293Geddes, J.W., Cotman, C.W., Plasticity in hippocampal excitatory amino acid receptors in Alzheimer disease (1986) Neuroscience Research, 3, pp. 672-678Gloor, P., Mesial temporal sclerosis: Historical background and an overview from a modern perspective (1991) Epilepsy surgery, pp. 689-703. , Luders H, editor, New York: Raven PressKudo, Y., Ogura, A., Glutamate-induced increase in intracellutar Ca++ concentration in isolated hippocampal neurones (1986) Br J Pharmacol, 89, pp. 191-198Miller, R.J., The revenge of the kainate receptor (1991) TINS, 14, pp. 477-479Sloviter, R.S., Sollas, A.L., Barbaro, N.M., Laxer, K.D., Calcium-binding protein (calbindin-D-28K) and parvalbumin immunocytochemistry in the normal and epileptic human hippocampus (1991) J Comp Neurol, 308, pp. 381-396Meencke, H.J., Veith, G., Hippocampal sclerosis in epilepsy (1991) Epilepsy surgery, pp. 705-715. , Luders H, editor, New York: Raven PressVeith, G., Anatomische Studie uber die Ammonshornsklerose im Epileptikergehirn (1970) Dtsch Z Nervenheilk, 197, pp. 293-314Schmidt, D., Tsai, J.J., Janz, D., Febrile seizures in patients with complex partial seizures (1985) Acta Neurol Scand, 72 (1), pp. 68-71Cendes, F., Lopes-Cendes, I., Andermann, E., Andermann, F., Familial temporal lobe epilepsy: A clinically heterogeneous syndrome (1998) Neurology, 50 (2), pp. 554-557Berkovic, S.F., Scheffer, I.E., Febrile seizures: Genetics and relationship to other epilepsy syndromes (1998) Curr Opin Neurol, 11 (2), pp. 129-134Kobayashi, E., Li, L.M., Lopes-Cendes, I., Cendes, F., Magnetic resonance imaging evidence of hippocampal sclerosis in asymptomatic, first-degree relatives of patients with familial mesial temporal lobe epilepsy (2002) Arch Neurol, 59 (12), pp. 1891-1894Kobayashi, E., D'Agostino, M.D., Lopes-Cendes, I., Berkovic, S.F., Li, M.L., Andermann, E., Hippocampal atrophy and T2-weighted signal changes in familial mesial temporal lobe epilepsy (2003) Neurology, 60 (3), pp. 405-409Franceschi, M., Triulzi, F., Ferini-Strambi, L., Giusti, M.C., Minicucci, F., Fazio, F., Focal cerebral lesions found by magnetic resonance imaging in cryptogenic nonrefractory temporal lobe epilepsy patients (1989) Epilepsia, 30, pp. 540-546Kim, W.J., Park, S.C., Lee, S.J., Lee, J.H., Kim, J.Y., Lee, B.I., The prognosis for control of seizures with medications in patients with MRI evidence for mesial temporal sclerosis (1999) Epilepsia, 40 (3), pp. 290-293Briellmann, R.S., Newton, M.R., Wellard, R.M., Jackson, G.D., Hippocampal sclerosis following brief generalized seizures in adulthood (2001) Neurology, 57, pp. 315-317Kobayashi, E., Guerreiro, C.A., Cendes, F., Late onset temporal lobe epilepsy with MRI evidence of mesial temporal sclerosis following acute neurocysticercosis: Case report (2001) Arq Neuropsiquiatr, 59 (2 -A), pp. 255-25
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Autism, macrocrania and epilepsy: How are they linked?
No full textTo evaluate the possible association of autistic disorder (AD), macrocrania and epilepsy, we performed a retrospective study comparing epileptic and non-epileptic AD patients with macrocrania, and AD patients with macrocrania to age- and sex-matched AD controls without macrocrania. We found macrocrania in 17.3% of 121 patients with AD. Epilepsy was not significantly more frequent in AD patients with macrocrania than in those without macrocrania. There were no significant differences in the other clinical characteristics studied except for epileptiform EEG abnormalities which were more often found in AD patients with epilepsy. AD with macrocrania and epilepsy is not a syndrome but may be a marker for a group of subjects with AD. A role for familial macrocrania needs further assessment. © 2002 Elsevier Science B.V. All rights reserved
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Rasmussen's Encephalitis: The Relevance Of Neuropsychological Assessment In Patient's Treatment And Follow Up
No full textRasmussen's encephalitis is characterized by refractory epilepsy, neurological deterioration and progressive atrophy of one cerebral hemisphere. The objective of this study is to describe the importance of neuropsychological evaluation in the treatment decision and follow-up of patients with Rasmussen's encephalitis. Neuropsychological assessment was performed in two steps. Firstly, the clinical history was obtained and the Vineland adaptative behavior scale (VABS) was applied. After this first step, the patients with social maturity level equal or higher than the inferior limit underwent a battery of neuropsychological assessment. We evaluated three patients before any specific treatment was started, and six months after the intervention (surgery or plasmapheresis). Patient 1 underwent left hemispherectomy and had global improvement on second neuropsychological assessment. This suggests that the decision of performing surgery was adequate. Patients 2 and 3 underwent plasmapheresis. They did not present cognitive decline between both evaluations which suggest that our decision of postponing surgery was adequate as well. We conclude that neuropsychological assessment is important when evaluating patients with Rasmussen's encephalitis. That is especially true for patients in whom disease progression is slow, and surgery timing has to be carefully planned.602 B378381Oguni, H., Andermann, F., Rasmussen, T.B., The natural history of encephalitis and epilepsy: A study of the MNI series of forty-eight cases (1991) Chronic Encephalitis and Epilepsy: Rasmussen's Syndrome, pp. 7-35. , Andermann F (ed). Stoneham: Butterworth-HeinemamOguni, H., Andermann, F., Rasmussen, T.B., The syndrome of chronic encephalitis and epilepsy: A study on the MNI series of 48 cases (1992) Adv Neurol, 57, pp. 419-433Rasmussen, T.B., Chronic encephalitis and seizures: Historical introduction (1991) Chronic Encephalitis and Epilepsy: Rasmussen's Syndrome, pp. 1-4. , Andermann F (ed). Stoneham: Butterworth-HeinemamCendes, F., Andermann, F., Silver, K., Arnold, D.L., Imaging of axonal damage in vivo in Rasmussen's syndrome (1995) Brain, 118, pp. 753-758Dulac, O., Robain, O., Chiron, C., High-dose steroid treatment of epilepsy partialis continua due to chronic focal encephalitis (1991) Chronic Encephalitis and Epilepsy: Rasmussen's Syndrome, pp. 193-199. , Andermann F (ed). Stoneham: Butterworth-HeinemamMcLachan, R.S., Levin, S., Blume, W.T., Treatment of Rasmussen's syndrome with ganciclovir (1996) Neurology, 47, pp. 925-928Walsh, P.J., Treatment of Rasmussen's syndrome with intravenous gammaglobulin (1991) Chronic Encephalitis and Epilepsy: Rasmussen's Syndrome, pp. 201-204. , Andermann F (ed). Stoneham: Butterworth-HeinemamTaylor, L.B., Neuropsychologic assessment of patients with chronic encephalitis (1991) Chronic Encephalitis and Epilepsy: Rasmussen's Syndrome, pp. 111-121. , Andermann F, (ed). Stoneham: Butterworth-HeinemamMilner, B., Psychological aspects of focal epilepsy and its neurosurgical management (1975) Advances in Neurology, 8. , Purpura D, Penry J, Walter R, (eds). New York: Raven PressAndrews, P.I., Dichter, M.A., Berkovic, S.F., Newton, M.R., McNamara, J.O., Plasmapheresis in Rasmussen's syndrome encephalitis (1996) Neurology, 46, pp. 242-24
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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