13 research outputs found
Rätt använd kompetsens i omvårnadsarbetet- En empirisk studie
Atti del Congresso internazionale del 'Cajal Club' dedicato a Camillo Golg
The Effects of Intraventricular Carbachol Injections on the Free-Running Activity Rhythm of the Hamster
A Model of Status Epilepticus Induced by Intermittent Electrical Stimulation of the Deep Prepyriform Cortex in Rats
The spatial and temporal pattern of fatty acid amide hydrolase expression in rat hippocampus during postnatal development
Analysis of ERK1/2 kinases in the inferior colliculus of rats genetically prone to audiogenic seizures during postnatal development
Neuropathology of the chronic epileptic syndrome induced by intrahippocampal tetanus toxin in rat: preservation of pyramidal cells and incidence of dark cells
Synaptology of the proximal segment of pyramidal cell basal dendrites
Pyramidal neurons are covered with dendritic spines, the main postsynaptic targets of excitatory (asymmetrical) synapses. However, the proximal portion of both the apical and basal dendrites is devoid of spines, suggesting a lack of excitatory inputs to this region. In the present study we used electron microscopy to analyse the proximal region of the basal dendrites of supra- and infragranular pyramidal cells to determine if this is the case. The proximal region of 80 basal dendrites sampled from the rat hindlimb representation in the primary somatosensory cortex was studied by electron microscopy A total of 317 synapses were found within this region of the dendrites, all of which were of the symmetrical type. These results suggest that glutamate receptors, although present in the cytoplasm, are not involved in synaptic junctions in the proximal portion of the dendrites. These data further support the idea that inhibitory terminals exclusively innervate the proximal region of basal dendrites