Evidence map›Paper›PMID 1382264›Full record

ArticlePflugers Archiv : European journal of physiology1992

Disparate effects of calcium channel blockers on pressure dependence of renin secretion and flow in the isolated perfused rat kidney.

H Scholz, A Kurtz

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In one paragraph

Article in Pflugers Archiv : European journal of physiology, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
0.9field-weighted citation impact, top 28% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Renal autoregulation in health and disease.Physiological reviews · 2015
    Review
  3. Article
  4. Regulation of renin secretion by renal juxtaglomerular cells.Pflugers Archiv : European journal of physiology · 2013
    Review
  5. Stimulation of renin secretion by nitric oxide is mediated by phosphodiesterase 3.Proceedings of the National Academy of Sciences of the United States of America · 1998
    Article
  6. Role of calcium ions in the pressure control of renin secretion from the kidneys.Pflugers Archiv : European journal of physiology · 1994
    Article
  7. Article
  8. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 2 institutions in 2 countries.

H ScholzPhysiologisches Institut der Universität, Zürich, Switzerland.
A Kurtz
University of Regensburg · DEUniversity of Zurich · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Using the model of isolated perfused rat kidneys this study was performed to investigate whether or not voltage-operated calcium channels are essentially involved in the pressure control of renin secretion from the kidneys. At a perfusion pressure of 100 mm Hg (13.3 kPa) renin secretory rates were 4.2 +/- 0.7 (ng angiotensin I h-1) min-1 g-1. Stepwise reduction of renal perfusion pressure to 80, 60, and 40 mm Hg (10.6, 8.0, 5.3 kPa) resulted in an increase of renin release yielding a 30-fold stimulation at 40 mm Hg vs 100 mm Hg. Increasing the perfusion pressure above 100 mm Hg did not further significantly decrease renin secretion. The perfusate flow rate was also pressure-dependent. Flow rates increased linearly with pressure and reached a plateau at 100 mm Hg, which was maintained up to 160 mm Hg (21.3 kPa). The averaged flow rate at the plateau was 15.5 ml min-1 g-1. In the presence of the three different calcium antagonists nifedipine (5 microM), nitrendipine (3 microM) and verapamil (5 microM), myogenic autoregulation of flow was abolished as indicated by the rise of the pressure/flow curve between 40 and 160 mm Hg. At the same time, however, these calcium channel blockers did not alter the relationship between perfusion pressure and renin secretion. Moreover, the calcium channel agonist Bay K 8644 (5 microM) caused a strong and long-lasting vasoconstriction, without changing renin secretion.(ABSTRACT TRUNCATED AT 250 WORDS)

Indexed as

3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl esterAnimalsBumetanideCalcium Channel BlockersGlomerular Filtration RateIn Vitro TechniquesIsoproterenolKidneyNifedipinePotassiumRatsRats, Inbred StrainsReninSodiumVerapamil3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl esterBumetanideCalcium Channel BlockersIsoproterenolNifedipinePotassiumReninSodiumVerapamil

Identifiers

PMID1382264
OpenAlexW2056237514

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.