Cited by 32Renin-Angiotensin System StudiesParathyroid Disorders and TreatmentsHormonal Regulation and Hypertension

Stimulatory action of parathyroid hormone on renin secretion in vitro: a study using isolated rat kidney, isolated rabbit glomeruli and superfused dispersed rat juxtaglomerular cells

Saussine, Christian, Judes, C., Massfelder, T., Musso, M.-J., Simeoni, U., Hannedouche, T., Helwig, J.-J.·1993·Clinical Science

Abstract

1. We have previously reported that pharmacological concentrations (125 nmol/l) of parathyroid hormone may stimulate renin release in the stable recirculating and non-filtering isolated rat kidney. 2. In the present study we have attempted to extend these initial observations by examining the concentration-related response of renin release to parathyroid hormone, using the same model of isolated kidney, and determining whether the effect of parathyroid hormone on renin release can be demonstrated by more direct approaches. Thus, the effects of parathyroid hormone on renin secretion were investigated in two other renal preparations: isolated rabbit glomeruli and isolated rat juxtaglomerular cells. 3. In the isolated kidney, rat parathyroid hormone significantly stimulated renin accumulation in the perfusate in a concentration-related manner with a threshold of 1 nmol/l. 4. In both glomeruli and juxtaglomerular cells bovine [Nle8,18,Tyr34]parathyroid hormone-(1–34)amide effectively and repeatedly stimulated renin release. These results imply that there is a direct stimulatory effect of parathyroid hormone on renin release. 5. We also examined the effect of [Nle8,18, Tyr34]parathyroid hormone-(l-34)amide during extracellular calcium buffering in the glomeruli. [Nle8,18,Tyr34]parathyroid hormone-(1–34)amide was uneffective in calcium-free medium. Increasing the extracellular ionized calcium concentration to 2.5 mmol/l increased the extent of stimulation in accordance with the reported ability of parathyroid hormone to block calcium channels and relax vascular smooth muscle cells. 6. These results provide further support for the role of parathyroid hormone as a direct mediator of renin secretion; moreover, the renin-stimulating action of parathyroid hormone may be mediated through the inhibition of calcium influx.s

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Crossref · 10.1042/cs0840011

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Authors
Saussine, C., Judes, C., Massfelder, T., Musso, M.-J., Simeoni, U., Hannedouche, T., & Helwig, J.-J.
Affiliations
  • Université de Strasbourg (FR)
  • Laboratoire de Physiologie Cellulaire Rénale, Université Louis Pasteur, Strasbourg, France
Venue
Clinical Science
Published
1993-01-01
Volume
84
Issue
1
Pages
11-19
ISSN
  • 0143-5221 (ISSN-L)
  • 1470-8736
OpenAlex
W2407165539
Cited by
32
References
0
Citations by year
2020: 6 · 2019: 2 · 2018: 1 · 2015: 3 · 2014: 3 · 2013: 1 · 2012: 3
FWCI
1.59
Type
journal article
Language
en
Open access
closed
Locations
  • Clinical Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Medicine › Nephrology › Parathyroid Disorders and Treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal Regulation and Hypertension
Keywords
parathyroid hormone, renin secretion, juxtaglomerular cells, glomeruli, isolated kidney, parathyroid hormone fragments, ionized calcium, calcium influx inhibition, concentration-dependent effects
MeSH terms
Animals, Calcium, Cells, Cultured, Dose-Response Relationship, Drug, Juxtaglomerular Apparatus, Kidney, Kidney Glomerulus, Male, Organ Culture Techniques, Parathyroid Hormone, Peptide Fragments, Rabbits, Renin, Stimulation, Chemical, Rats, Wistar, Teriparatide, Rats

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