Biomaterial Database

Direct projections from the entorhinal area to the anteroventral and laterodorsal thalamic nuclei in the rat. 1996

H Shibata

Department of Veterinary Anatomy, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Japan. shibata@cc.tuat.ac.jp

The present study provides the evidence for the existence of direct projections from the entorhinal area to the anteroventral (AV) and laterodorsal thalamic nuclei (LD) in the rat. The retrograde tract-tracing method with cholera toxin B subunit and the anterograde tract-tracing method with Phaseolus vulgaris leucoagglutinin were used. The projection fibers originate from layers V and VI of the medial entorhinal area and terminate in the rostral and dorsolateral parts of the AV and the dorsal part of the LD. The projections are organized in a coarse topographic fashion. The rostral part of the medial entorhinal area projects preferentially to the AV whereas the caudal part projects preferentially to the LD. The results show that the medial entorhinal area is connected reciprocally with the AV and LD. Thus, the AV and LD are intimately connected with the limbic cortex implicated in memory and learning.

UI	MeSH Term	Description	Entries
D007478	Iontophoresis	Therapeutic introduction of ions of soluble salts into tissues by means of electric current. In medical literature it is commonly used to indicate the process of increasing the penetration of drugs into surface tissues by the application of electric current. It has nothing to do with ION EXCHANGE; AIR IONIZATION nor PHONOPHORESIS, none of which requires current.	Iontophoreses
D008297	Male		Males
D009434	Neural Pathways	Neural tracts connecting one part of the nervous system with another.	Neural Interconnections,Interconnection, Neural,Interconnections, Neural,Neural Interconnection,Neural Pathway,Pathway, Neural,Pathways, Neural
D010835	Phytohemagglutinins	Mucoproteins isolated from the kidney bean (Phaseolus vulgaris); some of them are mitogenic to lymphocytes, others agglutinate all or certain types of erythrocytes or lymphocytes. They are used mainly in the study of immune mechanisms and in cell culture.	Kidney Bean Lectin,Kidney Bean Lectins,Lectins, Kidney Bean,Phaseolus vulgaris Lectin,Phaseolus vulgaris Lectins,Phytohemagglutinin,Hemagglutinins, Plant,Lectin, Kidney Bean,Lectin, Phaseolus vulgaris,Lectins, Phaseolus vulgaris,Plant Hemagglutinins
D001931	Brain Mapping	Imaging techniques used to colocalize sites of brain functions or physiological activity with brain structures.	Brain Electrical Activity Mapping,Functional Cerebral Localization,Topographic Brain Mapping,Brain Mapping, Topographic,Functional Cerebral Localizations,Mapping, Brain,Mapping, Topographic Brain
D005260	Female		Females
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013787	Thalamic Nuclei	Several groups of nuclei in the thalamus that serve as the major relay centers for sensory impulses in the brain.	Nuclei, Thalamic
D017208	Rats, Wistar	A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain.	Wistar Rat,Rat, Wistar,Wistar Rats
D051381	Rats	The common name for the genus Rattus.	Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus