[Afferent and efferent connections between the hypothalamus and raphe. Study using the technic of retrograde transport of peroxidases].
Projections between rat lateral hypothalamus and dorsal and medial raphe nuclei were studied. Horse radish peroxidase (HRP) was injected into each of these structures and retrogradely labeled neurons were identified. Following HRP injections into lateral hypothalamus (LH) labeled neurons were found into medial and cortical amygdaloid nuclei (AME, ACO), into dorsal thalamic nucleus (MD), in the hippocampal gyrus (HPC) and into medial raphe nucleus (MR). Following HRP injections into medial (MR) and dorsal (DR) raphe nuclei, labeled neurons were found in medial, lateral and posterior hypothalamus. A functional circuit was supposed between midbrain raphe and hypothalamus.
D000818:Animals; D001933:Brain Stem / Q000033:anatomy & histology*; D006735:Horseradish Peroxidase; D007031:Hypothalamus / Q000033:anatomy & histology*; D009475:Neurons, Afferent / Q000648:ultrastructure*; D009476:Neurons, Efferent / Q000648:ultrastructure*; D011903:Raphe Nuclei / Q000033:anatomy & histology*; D051381:Rats; D011919:Rats, Inbred Strains
D006735:Horseradish Peroxidase
Connessioni afferenti ed efferenti tra ipotalamo e rafe. Studio effettuato mediante la tecnica del trasporto retrogrado dell'enzima perossidasi.