TY - JOUR AU - Györffy, Balázs AU - Kovács, Zsolt AU - Gulyássy, Péter AU - Attila, Simor AU - Völgyi, Katalin AU - Orbán, Gergely AU - Péter, Baracskay AU - Szabó, Zoltán AU - Janáky, Tamás AU - Dobolyi, Árpád AU - Juhász, Gábor Dénes AU - Czurkó, András AU - Kékesi, Adrienna Katalin TI - Brain protein expression changes in WAG/Rij rats, a genetic rat model of absence epilepsy after peripheral lipopolysaccharide treatment JF - BRAIN BEHAVIOR AND IMMUNITY J2 - BRAIN BEHAV IMMUN VL - 35 PY - 2014 SP - 86 EP - 95 PG - 10 SN - 0889-1591 DO - 10.1016/j.bbi.2013.09.001 UR - https://m2.mtmt.hu/api/publication/2390640 ID - 2390640 N1 - Laboratory of Proteomics, Institute of Biology, Eötvös Loránd University, Pázmány P. stny. 1/c, Budapest H-1117, Hungary Department of Zoology, The University of West Hungary, Savaria Campus, Karolyi Gaspar ter 4, Szombathely H-9700, Hungary Institute of Medical Chemistry, University of Szeged, Dóm tér 8, Szeged H-6720, Hungary Semmelweis University and the Hungarian Academy of Sciences, Department of Anatomy, Histology and Embryology, Neuromorphological and Neuroendocrine Research Laboratory, Tuzoltó utca 58, Budapest H-1094, Hungary Department of Physiology and Neurobiology, Eötvös Loránd University, Pázmány P. stny. 1/c, Budapest H-1117, Hungary Cited By :20 Export Date: 16 November 2023 CODEN: BBIME Correspondence Address: Kékesi, K.A.; Laboratory of Proteomics, Pázmány P. stny. 1/c, Budapest H-1117, Hungary; email: kakekesi@dec001.geobio.elte.hu LA - English DB - MTMT ER - TY - JOUR AU - Kovács, Zsolt AU - Kékesi, Adrienna Katalin AU - Szilágyi, Nóra AU - Ábrahám, István AU - Székács, D AU - Király, N AU - Papp, E AU - Császár, I AU - Szegő, Éva Mónika AU - Barabás, Klaudia AU - Péterfy, H AU - Erdei, Anna AU - Bártfai, T AU - Juhász, Gábor Dénes TI - Facilitation of spike-wave discharge activity by lipopolysaccharides in Wistar Albino Glaxo/Rijswijk rats JF - NEUROSCIENCE J2 - NEUROSCIENCE VL - 140 PY - 2006 IS - 2 SP - 731 EP - 742 PG - 12 SN - 0306-4522 DO - 10.1016/j.neuroscience.2006.02.023 UR - https://m2.mtmt.hu/api/publication/1223704 ID - 1223704 N1 - Export Date: 27 January 2024; CODEN: NRSCD AB - In normal rats the proinflammatory cytokines like interleukin-1?, interleukin-6, which are induced by bacterial lipopolysaccharides, are able to control thalamo-cortical excitability by exerting strong effects on physiological synchronization such as sleep and on pathological synchronization like that in epileptic discharges. To investigate whether proinflammatory cytokines or lipopolysaccharides could modulate absence seizures resulting from a very different generator mechanism than the already investigated bicuculline-, kindling- and kainate-induced seizures, we used a genetically epileptic Wistar Albino Glaxo/Rijswijk rat strain, which is spontaneously generating high voltage spike-wave discharges. Wistar Albino Glaxo/Rijswijk rats responded with an increase of the number of spike-wave discharges to lipopolysaccharide injection (from 10 ?g/kg to 350 ?g/kg). Repetitive administration of 350 ?g/kg lipopolysaccharides daily for 5 days increased the number of spike-wave discharges on the first, second and third days but the number of spike-wave discharges returned to the control value on day 5, at the 5th injection of lipopolysaccharides, showing a tolerance to lipopolysaccharides. The lipopolysaccharide-induced increase in spike-wave discharges was not directly correlated with the elevation of the core body temperature, as it is in febrile seizures, although lipopolysaccharide induced prostaglandin and is clearly pyrogenic at the doses used. Indomethacin, the prostaglandin synthesis inhibitor, efficiently blocked lipopolysaccharide-induced enhancement of spike-wave discharge genesis suggesting that the spike-wave discharge facilitating effect of lipopolysaccharides involves induction of cyclooxygenase 2 and subsequent synthesis and actions of prostaglandin E2. Low dose (40 mg/kg, i.p.) of competitive N-methyl-d-aspartate receptor antagonist 2-amino-5-phosphonopentanoic acid, and low dose of lipopolysaccharide (20 ?g/kg) showed a synergistic interaction to increase the number of spike-wave discharges, whereas at supramaximal doses of lipopolysaccharide and the N-methyl-d-aspartate antagonist no synergy was present. The data reveal a functional connection between absence epileptic activity and lipopolysaccharide induction of prostaglandin synthesis and prostaglandin action and suggest some common cellular targets in epilepsy and lipopolysaccharide-induced inflammation. Š 2006 IBRO. LA - English DB - MTMT ER -