Experimental early-life febrile seizures induce changes in GABAAR-mediated neurotransmission in the dentate gyrus
نویسندگان
چکیده
منابع مشابه
Stress and Corticosteroids Aggravate Morphological Changes in the Dentate Gyrus after Early-Life Experimental Febrile Seizures in Mice
Stress is the most frequently self-reported seizure precipitant in patients with epilepsy. Moreover, a relation between ear stress and epilepsy has been suggested. Although ear stress and stress hormones are known to influence seizure threshold in rodents, effects on the development of epilepsy (epileptogenesis) are still unclear. Therefore, we studied the consequences of ear corticosteroid exp...
متن کاملThioperamide-induced Antinociception is Mediated through Endogenous Opioid System in the Dentate Gyrus of Adult Rats
The present study investigated the effects of intra-dentate gyrus microinjection of naloxone (an opioid antagonist) and thioperamide (an antagonist of histamine H3 receptors) in the formalin test in rats. Subcutaneous injection of formalin (50 μl, 2.5 %) in the ventral surface of right hind paw produced a biphasic pattern (first phase: 0-5 min and second phase: 15 - 60 min) of licking/biting an...
متن کاملSeizures induce simultaneous GABAergic and glutamatergic transmission in the dentate gyrus-CA3 system.
Monosynaptic and polysynaptic responses of CA3 pyramidal cells (PC) to stimulation of the dentate gyrus (DG) are normally blocked by glutamate receptor antagonists (GluRAs). However, after kindled seizures, GluRAs block the monosynaptic excitatory postsynaptic potential (EPSP) and isolate a monosynaptic inhibitory postsynaptic potential (IPSP), suggesting that mossy fibers release GABA. However...
متن کاملProliferation changes in dentate gyrus of hippocampus during the first week following kainic acid-induced seizures.
Long-term neuroplastic changes in dentate gyrus (DG) have been reported after seizure induction and were shown to contribute to epitogenesis of epilepsy. These changes include increased number of newborn granule cells, sprouted mossy fibers, granule cell layer dispersion, etc. The aim of current study is to determine the acute progression of neuroplastic changes involved newly generated granule...
متن کاملFunctional and morphological changes in the dentate gyrus after experimental status epilepticus
Status epilepticus may cause long-term functional and structural consequences possibly resulting in brain dysfunctions such as chronic epilepsy. In epileptogenesis, the dentate gyrus plays a key role in regulating the excitability of highly vulnerable and potentially epileptogenic downstream structures in the hippocampus proper. One, four and eight weeks after electrically induced status epilep...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Epilepsia
سال: 2012
ISSN: 0013-9580
DOI: 10.1111/j.1528-1167.2012.03694.x