Clinical Neuroscience

[József Kelemen 1934-2014]

KOPA János

SEPTEMBER 30, 2014

Clinical Neuroscience - 2014;67(09-10)

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Clinical Neuroscience

[Complex approaches to study complex trait genetics in multiple sclerosis]

BERNADETTE Kalman

[Multiple sclerosis (MS) is a complex trait disorder defined by several genes and their interactions with environmental factors. A comprehensive exploration of the susceptibility variants had not been feasible until recently when new developments in biotechnology and bioinformatics made possible sequencing of the whole human genome, cataloguing of nucleotide variants and alignments of these variants in haplotypes. Earlier observations from epidemiological, candidate gene and linkage studies provided ample evidence to support a complex genetic determination of MS. New biotechnology and bioinformatics resources have been recently applied to further successful explorations of the disease. These efforts were paralleled by more careful and reliable ascertainments of disease phenotypes, collaborations among specialized centers to generate sufficient sample size and involvement of clinician-scientists capable of working both on the clinical and scientific study sides. Data obtained from the whole genome association studies (GWAS) elevated our understanding of MS genetics to a new level by identifying an extensive list of genetic determinants. Pathway analyses of MS-associated variants provided evidence to support the immune etiology of the disease. Future research will likely explore how environmental factors interact with the genome, and contribute to the abnormal immune activation and inflammation. This review summarizes the outcomes of MS genetic explorations including those of recent GWAS, and highlights practical consequences of genetic and genomic studies by pointing out as to how the derived data facilitate further elucidation of MS pathogenesis. A better understanding of disease processes is necessary for future advancements in therapeutics and the development of disease prevention strategies.]

Clinical Neuroscience

[P-wave dispersion doesn’t increase in patients with epilepsy]

SENOL Güney Mehmet, ÖZMEN Namik, YASAR Halit, TEKELI Hakan, ÖZDAG Fatih, SARACOGLU Mehmet

[Aim - Epileptic seizures have occasionally been associated with cardiac conditions as atrioventricular blocks, long QT syndrome etc. P-wave dispersion (PWD), which is the difference between the longest (P max) and shortest P-wave duration (P min), is considered as a forerunner of atrial fibrillation. In this study, we investigated P-wave dispersion (PWD) in epileptic patients; based on the hypothesis that microthromboembolism may occur in atrial fibrillation. Methods - Seventy five patients with mixed types of epilepsy and 50 age and sex matched healthy individuals were included into the study. P max, P min and PWD values were calculated for each subject from an ECG. Results - The mean age of subjects in the epilepsy group and control group were similar (p>0.05). P max in patients with epilepsy was 125.1±0.7 ms, P min was 67.3±10.3 ms, and PWD was 57.6±8.3 ms while these values in the control group were 116.8±11.0 ms, 66.5±5.5 ms and 46.8±7.1 ms, respectively. There were no statistically significant difference between two groups (p>0.05). Conclusions - PWD does not increase in patients with mixed types of epilepsy. Therefore we believe that microthromboembolism duo to atrial fibrillation can’t cause epileptic seizures in patients with no structural heart disease.]

Clinical Neuroscience

[Prosthodontic treatment of an edentulous epileptic patient with an implant-retained overdenture. A case report]

KÁROLYHÁZY Katalin, SCHMIDT Péter, BOGDÁN Sándor, HERMANN Péter, ARÁNYI Zsuzsanna

[This report describes the treatment of a completely edentulous, mentally retarded patient with epilepsy with an implantretained overdenture, anchored by a locator system. The intractable epileptic condition of the patient with frequent grand mal seizures and complex partial seizures required a stable, well retained prosthesis, however the maxilla and the mandible were severely atrophied. The bone volume of the maxilla allowed the placement of only two implants at the region of the canines, compared with the generally required four. On long time recall, after one year, patient’s chewing ability was satisfactory.]

Clinical Neuroscience

[Great insight created by tiny holes; celebrating 40 years of brain micropunch technique]

AGOSTON V. Denes

Clinical Neuroscience

[The relevance of traumatic life events in schizophrenia spectrum disorders]

KOCSIS-BOGÁR Krisztina, PERCZEL FORINTOS Dóra

[The central goal of this manuscript was to review literature about the interconnections of traumatic life events and symptoms of schizophrenia spectrum of the last 15 years. First of all, the stress-diathesis model and the traumagenic neurodevelopmental model are shortly presented. Psychological effects of traumas and specific psychotic symptoms in connection with traumatic events are discussed. The course of the disease in patients affected by previous traumas and possible mediating factors are also addressed. Studies of both clinical and community samples are cited. It was also our aim to review literature about the neurobiological and neurocognitive processes in people affected by schizophrenia and/or traumatic life events. The role of prefrontal and medial temporal regions are explored with a special emphasis on contextual memory and hippocampal functioning. Finally, the possible effects of exploring traumatic life events on the treatment of schizophrenia are discussed.]

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