Afferent connections of the thalamic paraventricular and parataenial nuclei in the rat--a retrograde tracing study with iontophoretic application of Fluoro-Gold

Brain Res. 1990 Jul 2;522(1):1-6. doi: 10.1016/0006-8993(90)91570-7.


The origin of the afferents of the thalamic anterior paraventricular and parataenial nuclei (PVA-PT) in the rat was studied with fluorescent retrograde tracing method. After iontophoretic application of Fluoro-Gold into PVA-PT, many labeled cells were found in the medial frontal cortex, ventral subiculum, claustrum, septum, ventral pallidum, thalamic reticular nuc., zona incerta, hypothalamus, central gray, dorsal raphe nuc., parabrachial nuc., and the laterodorsal tegmental nuc. A few cells were labeled in the medial amygdaloid nuc., amygdalohippocampal area, median raphe nuc., and the locus coeruleus. Occasional neurons were labeled in the ventral lateral geniculate nuc., pretectal area, and in the solitary nuc. and the lateral reticular nuc. in the medulla.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Biogenic Monoamines / physiology*
  • Brain / anatomy & histology
  • Brain Chemistry / drug effects
  • Endorphins / physiology*
  • Fluorescence
  • Fluorescent Dyes
  • Injections, Spinal
  • Iontophoresis
  • Methysergide / pharmacology
  • Naloxone / pharmacology
  • Neural Pathways / physiology
  • Neurons, Afferent / cytology*
  • Paraventricular Hypothalamic Nucleus / ultrastructure*
  • Phentolamine / pharmacology
  • Rats
  • Stilbamidines*


  • 2-hydroxy-4,4'-diamidinostilbene, methanesulfonate salt
  • Biogenic Monoamines
  • Endorphins
  • Fluorescent Dyes
  • Stilbamidines
  • Naloxone
  • Methysergide
  • Phentolamine