Evidence map›Paper›PMID 34984822›Full record

Trial reportDiabetes, obesity & metabolism2022

Combined sodium glucose co-transporter-2 inhibitor and angiotensin-converting enzyme inhibition upregulates the renin-angiotensin system in chronic kidney disease with type 2 diabetes: Results of a randomized, double-blind, placebo-controlled exploratory trial.

Marlies Antlanger, Oliver Domenig, Christopher C Kaltenecker, Johannes J Kovarik, Vincent Rathkolb, Martin M Müller, Elisabeth Schwaiger, Manfred Hecking, Marko Poglitsch, Marcus D Säemann and 1 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Diabetes, obesity & metabolism, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 4 pooled it
3.2field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 4 syntheses or guidelines pooled it, 25 citations in OpenAlex.

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  9. Angiotensin Dysregulation in Patients with Arterial Aneurysms.International journal of molecular sciences · 2025
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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

11 authors at 4 institutions in 2 countries.

Marlies AntlangerDepartment of Internal Medicine II, Kepler University Hospital, Linz, Austria.
Oliver DomenigAttoquant Diagnostics GmbH, Vienna, Austria.
Christopher C KalteneckerDepartment of Internal Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.
Johannes J KovarikDepartment of Internal Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.
Vincent RathkolbDepartment of Internal Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.
Martin M MüllerDepartment of Internal Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.
Elisabeth SchwaigerDepartment of Internal Medicine II, Kepler University Hospital, Linz, Austria.
Manfred HeckingDepartment of Internal Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.
Marko PoglitschAttoquant Diagnostics GmbH, Vienna, Austria.
Marcus D Säemann6th Medical Department with Nephrology and Dialysis, Wilhelminenhospital Clinic Ottakring, Vienna, Austria.
Chantal KopeckyDepartment of Internal Medicine III, Division of Nephrology and Dialysis, Medical University of Vienna, Vienna, Austria.ORCID 0000-0003-2289-4837
Medical University of Vienna · ATKepler Universitätsklinikum · ATSigmund Freud Privatuniversität Wien · ATThe University of Sydney · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimSodium glucose co-transporter-2 inhibitors (SGLT-2i) improve cardiorenal outcomes in patients with chronic kidney disease (CKD), with and without type 2 diabetes. The molecular mechanisms underlying these pleiotropic effects remain unclear, yet it is speculated that SGLT-2i elicit a neurohormonal modulation resulting in renin-angiotensin system (RAS) activation. We hypothesized that combined SGLT-2 and angiotensin-converting enzyme inhibition (ACEi) favours RAS regulation towards the beneficial angiotensin-(1-7)-driven axis. MATERIALS AND

methodsThis randomized controlled prospective study investigated the effect of 12 weeks treatment with the SGLT-2i empagliflozin on top of ACEi on the molecular RAS dynamics in 24 diabetic and 24 non-diabetic patients with CKD. Systemic RAS peptides were quantified by mass spectrometry.

resultsIn patients with type 2 diabetes, combined SGLT-2i and ACEi significantly upregulated plasma renin activity [pre-treatment median and interquartile range 298.0 (43.0-672.0) pmol/L versus post-treatment 577.0 (95.0-1543.0) pmol/L; p = .037] and angiotensin I levels [pre-treatment 289.0 (42.0-668.0) pmol/L versus post-treatment 573.0 (93.0-1522.0) pmol/L; p = .037], together with a significant increase of angiotensin-(1-7) levels [pre-treatment 14.0 (2.1-19.0) pmol/L versus post-treatment 32.0 (5.7-99.0) pmol/L; p = .012]. Empagliflozin treatment resulted in a 1.5 to 2-fold increase in main RAS peptides in patients with diabetes compared with placebo. No significant effect of empagliflozin on top of ACEi on RAS peptides was found in patients with CKD without diabetes.

conclusionA distinct RAS modulation by SGLT-2i occurs in diabetic kidney disease reflected by enhancement of the beneficial angiotensin-(1-7) providing a molecular background for this renoprotective therapeutic approach.

Indexed as

Diabetes Mellitus, Type 2Renal Insufficiency, ChronicSodium-Glucose Transporter 2 InhibitorsAngiotensinsGlucoseHumansProspective StudiesRenin-Angiotensin SystemSodiumAngiotensinsGlucoseSodiumSodium-Glucose Transporter 2 InhibitorsACE inhibitionangiotensinschronic kidney diseaseempagliflozinrenin-angiotensin system activationSGLT-2 inhibitiontype 2 diabetes mellitus

Identifiers

PMID34984822
PMCPMC9305250
OpenAlexW4206082388

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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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.