Abstract：
:Using indirect immunofluorescence technique combined with retrograde tracing as well as surgical lesions, a system of spinothalamic neurons containing both galanin- and cholecystokinin-like immunoreactivity has been defined. The cell bodies are located in the lumbar segments L1-L5 with a preferential localization dorsal to the central canal at rostral levels and lateral to the canal at caudal levels. The cells project via the ventral part of the lateral funiculus to the most ventral and posterior parts of thalamus. Here a distinct, varicose terminal network was seen extending caudally from an area lateral to the medial lemniscus, running medially over the medial lemniscus, traversing the parafascicular nucleus and running dorsal to the fasciculus retroflexus into the periventricular gray matter. Transection of various parts of the spinal cord as well as retrograde tracing experiments indicate that the spinothalamic galanin cholecystokinin system represents a crossed pathway. The present results demonstrate that a spinothalamic system can be characterized by its content of galanin- and cholecystokinin-like peptides, two putative messenger molecules. It is only a minor component of the total spinothalamic projection.
journal_name
Neurosciencejournal_title
Neuroscienceauthors
Ju G,Melander T,Ceccatelli S,Hökfelt T,Frey Pdoi
10.1016/0306-4522(87)90103-5subject
Has Abstractpub_date
1987-02-01 00:00:00pages
439-56issue
2eissn
0306-4522issn
1873-7544pii
0306-4522(87)90103-5journal_volume
20pub_type
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