Evidence map›Paper›PMID 23240643›Full record

Trial reportBritish journal of clinical pharmacology2013

Effects of manidipine vs. amlodipine on intrarenal haemodynamics in patients with arterial hypertension.

Christian Ott, Markus P Schneider, Ulrike Raff, Martin Ritt, Kristina Striepe, Marco Alberici, Roland E Schmieder

Open access · bronzeAbstract readComparative StudyRandomized Controlled Trial
In one paragraph

Trial report in British journal of clinical pharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

14 citing papers in PubMed, 29 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Oxidative Stress in Kidney Injury and Hypertension.Antioxidants (Basel, Switzerland) · 2024
    Review
  4. Article
  5. Article
  6. PAIT-Survey Follow-Up: Changes in Albuminuria in Hypertensive Diabetic Patients with Mild-Moderate Chronic Kidney Disease.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2020
    Observational
  7. Article
  8. Treatment of Hypertension in Chronic Kidney Disease.Current hypertension reports · 2018
    Review
  9. Review
  10. Influence of sex on hyperfiltration in patients with uncomplicated type 1 diabetes.American journal of physiology. Renal physiology · 2017
    Article
  11. The Gomez' equations and renal hemodynamic function in kidney disease research.American journal of physiology. Renal physiology · 2016
    Article
  12. Article
  13. Review
  14. 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

7 authors at 2 institutions in 3 countries.

Christian OttDepartment of Nephrology and Hypertension, University of Erlangen-Nuremberg, Germany.
Markus P Schneider
Ulrike Raff
Martin Ritt
Kristina Striepe
Marco Alberici
Roland E Schmieder
Friedrich-Alexander-Universität Erlangen-Nürnberg · DEChiesi (France) · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsIntraglomerular pressure is one of the main drivers of progression of renal failure. Experimental data suggest that there are important differences between calcium channel blockers (CCBs) in their renal haemodynamic effects: manidipine reduces, whereas amlodipine increases intraglomerular pressure. The aim of this study was to investigate the effects of manidipine and amlodipine treatment on intragomerular pressure (P(glom)) in patients with mild to moderate essential hypertension.

methodsIn this randomized, double-blind, parallel group study, hypertensive patients were randomly assigned to receive manidipine 20 mg (n = 54) or amlodipine 10 mg (n = 50) for 4 weeks. Renal plasma flow (RPF) and glomerular filtration rate (GFR) were determined by constant-infusion input-clearance technique with p-aminohippurate (PAH) and inulin. P(glom) and resistances of the afferent (R(A)) and efferent (R(E)) arterioles were calculated according to the model established by Gomez.

resultsP(glom) did not change in the manidipine group (P = 0.951), whereas a significant increase occurred in the amlodipine group (P = 0.009). There was a significant difference in the change of P(glom) by 1.2 mmHg between the manidipine and amlodipine group (P = 0.042). In both treatment arms, R(A) was reduced (manidipine P = 0.018; amlodipine P < 0.001). The reduction of R(A) was significantly more pronounced with amlodipine compared with manidipine treatment (P < 0.001). R(E) increased in both treatment arms (manidipine P = 0.012; amlodipine P = 0.002), with no difference between the treatment arms. Both CCBs significantly reduced systolic and diastolic blood pressure (BP) (both P < 0.001). However, amlodipine treatment resulted in a significantly greater decrease of BP compared with manidipine (P < 0.001).

conclusionsIn accordance with experimental data after antihypertensive treatment of 4 weeks, intraglomerular pressure was significantly lower with the CCB manidipine than with amlodipine, resulting and explaining their disparate effects on albuminuria.

Indexed as

AdultAgedAlbuminuriaAmlodipineCreatinineDihydropyridinesDouble-Blind MethodFemaleHemodynamicsHumansHypertensionKidneyMaleMiddle AgedNitrobenzenesPiperazinesAmlodipineCreatinineDihydropyridinesmanidipineNitrobenzenesPiperazines

Identifiers

PMID23240643
PMCPMC3555052
OpenAlexW1587661466

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.