Cited by 20Neuroendocrine regulation and behaviorRenin-Angiotensin System StudiesElectrolyte and hormonal disorders

Up-regulation of vasopressin and angiotensin II receptors in the thalamus and brainstem of inbred polydipsic mice

Tribollet, Eliane, Ueta, Yoichi, Heitz, Freddy, Marguerat, Anouk, Koizumi, Kiyomi, Yamashita, Hiroshi·2002·Neuroendocrinology

Abstract

Vasopressin (AVP), angiotensin II (Ang II) and oxytocin (OT) receptors were mapped in the brain of inbred polydipsic mice of the STR/N strain by quantitative in vitro autoradiography and receptor binding levels, compared with those found in control non-polydipsic mice of the ICR strain. A remarkable difference was evidenced in the thalamic paraventricular nucleus where AVP receptor binding was 7- to 10-fold higher in polydipsic mice than in control mice. Another disparity was observed in the hypothalamic paraventricular nucleus, which contained AVP binding sites in the control mice, but was unlabelled in the polydipsic animals. Ang II receptor binding was reduced in the hypothalamic paraventricular nucleus of the polydipsic mice, whereas it was abundant in the brainstem region, encompassing area postrema and the nucleus of the solitary tract. The distribution and amount of OT receptor binding were similar in the polydipsic and control mice. Strain-related differences of AVP and Ang II receptor binding were observed both in male and female animals. A sex-related difference was seen only for OT receptor binding in the hypothalamic ventromedial nucleus, where labelling was less intense in males than in females of both strains. Altogether, our results support the view that central AVP and Ang II systems are involved in the mechanisms responsible for polydipsia in STR/N mice.

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Crossref · 10.1159/000048227

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Authors
Tribollet, E., Ueta, Y., Heitz, F., Marguerat, A., Koizumi, K., & Yamashita, H.
Affiliations
  • University of Geneva (CH)
  • University of Occupational and Environmental Health Japan (JP)
  • State University of New York (US)
Venue
Neuroendocrinology
Publisher
S. Karger AG
Published
2002
Volume
75
Issue
2
Pages
113-123
ISSN
  • 0028-3835 (ISSN-L)
  • 1423-0194
OpenAlex
W2047204382
Cited by
20
References
30
Citations by year
2026: 2 · 2024: 2 · 2020: 1 · 2019: 2 · 2018: 1 · 2017: 1 · 2015: 3 · 2014: 1
FWCI
2.71
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroendocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
Topics
  • Social Sciences › Psychology › Social Psychology › Neuroendocrine regulation and behavior
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Electrolyte and hormonal disorders
Keywords
vasopressin receptor, angiotensin II receptor, oxytocin receptor, polydipsia, hypothalamic paraventricular nucleus, area postrema, nucleus tractus solitarius, brainstem, sex differences, receptor binding, strain differences
MeSH terms
Angiotensin II, Animals, Drinking, Female, Iodine Radioisotopes, Male, Mice, Inbred ICR, Mice, Mutant Strains, Oxytocin, Paraventricular Hypothalamic Nucleus, Polyuria, Radioligand Assay, Receptors, Angiotensin, Sex Characteristics, Ventromedial Hypothalamic Nucleus, Up-Regulation, Receptors, Vasopressin, Solitary Nucleus, Receptors, Oxytocin, Midline Thalamic Nuclei, Mice

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