• Home
  1. Home
  2. Quantitative histological studies on the hypothalamic paraventricular nucleus in rats: I. Number of cells and synaptic boutons
Scientific article
English

Quantitative histological studies on the hypothalamic paraventricular nucleus in rats: I. Number of cells and synaptic boutons

Contributors

Kiss, Jozsef Zoltan; Palkovits, M.; Zaborszky, L.; Tribollet, Eliane; Szabo, D.; Makara, G. B.

Published in

Brain research, vol. 262, no. 2, p. 217-224

Publication date

1983

Abstract

Quantitative histological analysis of serial sections of the adult male rat brain gives mean total estimates of the numbers of cells in the magnocellular and parvicellular divisions of the paraventricular hypothalamic nuclei (PVN) of 6600 and 11,500, respectively. The numbers and densities (number/mm3) of presynaptic bouton profiles have been measured and calculated on electron micrographs of the magnocellular paraventricular nucleus (mPVN). There are approximately 18 x 10(6) presynaptic boutons in the magnocellular subdivision: 76% of the synaptic boutons are axodendritic, 17% axosomatic and 7% are unidentified but include a few axo-axonic contacts. One third of the boutons contain dense-core vesicles although their postsynaptic contacts do not differ from other boutons. The estimated ratio of the number of boutons per neuron in the magnocellular paraventricular nucleus is 2820:1.

Keywords

  • Animals
  • Axons/ultrastructure
  • Cell Count
  • Dendrites/ultrastructure
  • Male
  • Microscopy, Electron
  • Neurons/cytology
  • Neurosecretion
  • Paraventricular Hypothalamic Nucleus/ cytology
  • Rats
  • Rats, Inbred Strains
  • Synapses/ ultrastructure
  • Synaptic Membranes/ultrastructure
  • Synaptic Vesicles/ultrastructure

UNIGE affiliation entities

UNIGE research groups

Citation (ISO format)

KISS, Jozsef Zoltan et al. Quantitative histological studies on the hypothalamic paraventricular nucleus in rats: I. Number of cells and synaptic boutons. In: Brain research, 1983, vol. 262, n° 2, p. 217–224. doi: 10.1016/0006-8993(83)91011-9

Identifiers

Journal ISSN

0006-8993
644views
0downloads

Technical informations

Creation

06/08/2010 10:47:14

First validation

06/08/2010 10:47:14

Update

14/03/2023 16:50:44

Status update

14/03/2023 16:50:44

Last indexation

29/10/2024 16:24:26
All rights reserved by Archive ouverte UNIGE and the University of Geneva
OpenAIRE Indexed & Validated