Roni Nielsen

4.0k total citations · 2 hit papers
109 papers, 2.9k citations indexed

About

Roni Nielsen is a scholar working on Cardiology and Cardiovascular Medicine, Physiology and Microbiology. According to data from OpenAlex, Roni Nielsen has authored 109 papers receiving a total of 2.9k indexed citations (citations by other indexed papers that have themselves been cited), including 45 papers in Cardiology and Cardiovascular Medicine, 26 papers in Physiology and 25 papers in Microbiology. Recurrent topics in Roni Nielsen's work include Cardiovascular Function and Risk Factors (36 papers), Microbial infections and disease research (25 papers) and Diet and metabolism studies (19 papers). Roni Nielsen is often cited by papers focused on Cardiovascular Function and Risk Factors (36 papers), Microbial infections and disease research (25 papers) and Diet and metabolism studies (19 papers). Roni Nielsen collaborates with scholars based in Denmark, United States and Sweden. Roni Nielsen's co-authors include Henrik Wiggers, Niels Møller, Hans Erik Bøtker, Lars Poulsen Tolbod, Hendrik J. Harms, Lars Christian Gormsen, Hans Eiskjær, Jens Nørkær Sørensen, Nils Henrik Hansson and Allan Flyvbjerg and has published in prestigious journals such as Circulation, Journal of the American College of Cardiology and PLoS ONE.

In The Last Decade

Roni Nielsen

100 papers receiving 2.8k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Effect of Liraglutide, a Glucagon-Like Peptide-1 Analogue, on Left Ventricular Function in Stable Chronic Heart Failure Patients with and Without Diabetes (LIVE)—a Multicentre, Double-Blind, Randomised, Placebo-Controlled Trial

2016 381 citations Anders Jorsal, Caroline Kistorp et al. profile →
Cardiovascular Effects of Treatment With the Ketone Body 3-Hydroxybutyrate in Chronic Heart Failure Patients

2019 367 citations Roni Nielsen, Niels Møller et al. Circulation profile →

Peers

Roni Nielsen

CCM

EDM

PHYSI

MICRO

Tetsuro Sugiura Japan

David Neumann United States

Amrisha Verma United States

Hongyu Qiu United States

Walter Hoffmann United States

Senad Divanovic United States

David Hesse United States

Christopher Lupfer United States

Sudip Ghosh India

James D. Albert United States

Tetsuro Sugiura Japan

Roni Nielsen

1.2k ×1.1

CCM

127 ×0.1

EDM

169 ×0.2

PHYSI

140 ×0.2

MICRO

353 ×0.6

Citations per year, relative to Roni Nielsen Roni Nielsen (= 1×) peers Tetsuro Sugiura

Countries citing papers authored by Roni Nielsen

Since Specialization

Citations

This map shows the geographic impact of Roni Nielsen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Roni Nielsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roni Nielsen more than expected).

Fields of papers citing papers by Roni Nielsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roni Nielsen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Roni Nielsen. The network helps show where Roni Nielsen may publish in the future.

Co-authorship network of co-authors of Roni Nielsen

This figure shows the co-authorship network connecting the top 25 collaborators of Roni Nielsen. A scholar is included among the top collaborators of Roni Nielsen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Roni Nielsen. Roni Nielsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Christensen, Louisa, Alf Inge Larsen, Nigopan Gopalasingam, et al.. (2025). Butyrate increases cardiac output and causes vasorelaxation in a healthy porcine model. Life Sciences. 363. 123407–123407. 3 indexed citations

Olesen, Kevin Kris Warnakula, et al.. (2025). Mortality and use of implantable cardioverter defibrillators in patients with low ejection fraction following non-ST-segment elevation myocardial infarction. EP Europace. 27(2). 1 indexed citations

Olesen, Kevin Kris Warnakula, Pernille Gro Thrane, Christine Gyldenkerne, et al.. (2025). Coronary Artery Disease Doubles Excess Mortality in Patients With Heart Failure With Reduced Ejection Fraction. Journal of the American Heart Association. 14(9). e037915–e037915.

Nielsen, Roni, Esben Søndergaard, Kim Frisch, et al.. (2025). Gut lactate increases circulating l-Lac-Phe and key metabolites linked to GLP-1 and human health. American Journal of Physiology-Endocrinology and Metabolism. 329(1). E143–E150. 1 indexed citations

Helgestad, Ole Kristian Lerche, Jacob Eifer Møller, Hanne Berg Ravn, et al.. (2025). The ketone body 3-hydroxybutyrate increases cardiac output and cardiac contractility in a porcine model of cardiogenic shock: a randomized, blinded, crossover trial. Basic Research in Cardiology. 120(3). 579–596.

Hansen, Jakob, et al.. (2025). Lactate orchestrates metabolic hemodynamic adaptations through a unique combination of venocontraction, artery relaxation, and positive inotropy. Acta Physiologica. 241(5). e70037–e70037. 3 indexed citations

Gopalasingam, Nigopan, Kristoffer Berg‐Hansen, Erik Nguyen Nielsen, et al.. (2024). Enantiomer‐Specific Cardiovascular Effects of the Ketone Body 3‐Hydroxybutyrate. Journal of the American Heart Association. 13(8). e033628–e033628. 16 indexed citations

Ladefoged, Bertil, Roni Nielsen, Hans Eiskjær, et al.. (2024). Exercise Hemodynamics and Mitochondrial Oxidative Capacity in Disease Stages of Wild‐Type Transthyretin Amyloid Cardiomyopathy. Journal of the American Heart Association. 13(13). e034213–e034213.

Berg‐Hansen, Kristoffer, Nigopan Gopalasingam, Bertil Ladefoged, et al.. (2024). Cardiovascular Effects of Oral Ketone Ester Treatment in Patients With Heart Failure With Reduced Ejection Fraction: A Randomized, Controlled, Double-Blind Trial. Circulation. 149(19). 1474–1489. 33 indexed citations

10.

Berg, Katrine, Nichlas Riise Jespersen, Thomas Ravn Lassen, et al.. (2024). Effects of ketone body 3-hydroxybutyrate on cardiac and mitochondrial function during donation after circulatory death heart transplantation. Scientific Reports. 14(1). 757–757. 7 indexed citations

11.

Berg‐Hansen, Kristoffer, Nigopan Gopalasingam, Tor Skibsted Clemmensen, et al.. (2024). Myocardial work across different etiologies of right ventricular dysfunction and healthy controls. The International Journal of Cardiovascular Imaging. 40(3). 675–684. 8 indexed citations

12.

Gopalasingam, Nigopan, Kristoffer Berg‐Hansen, Roni Nielsen, et al.. (2023). Stimulation of the Hydroxycarboxylic Acid Receptor 2 With the Ketone Body 3‐Hydroxybutyrate and Niacin in Patients With Chronic Heart Failure: Hemodynamic and Metabolic Effects. Journal of the American Heart Association. 12(12). e029849–e029849. 18 indexed citations

13.

Dybro, Anne M., Torsten B. Rasmussen, Roni Nielsen, et al.. (2021). Randomized Trial of Metoprolol in Patients With Obstructive Hypertrophic Cardiomyopathy. Journal of the American College of Cardiology. 78(25). 2505–2517. 94 indexed citations

14.

Nielsen, Roni, Anders Jorsal, Peter Iversen, et al.. (2017). Effect of liraglutide on myocardial glucose uptake and blood flow in stable chronic heart failure patients: A double-blind, randomized, placebo-controlled LIVE sub-study. Journal of Nuclear Cardiology. 26(2). 585–597. 34 indexed citations

15.

Grejs, Anders Morten, Roni Nielsen, Peter Juhl‐Olsen, et al.. (2017). Effect of prolonged targeted temperature management on left ventricular myocardial function after out-of-hospital cardiac arrest − A randomised, controlled trial. Resuscitation. 115. 23–31. 5 indexed citations

16.

Jorsal, Anders, Henrik Wiggers, Pernille Holmager, et al.. (2014). A protocol for a randomised, double-blind, placebo-controlled study of the effect of LIraglutide on left VEntricular function in chronic heart failure patients with and without type 2 diabetes (The LIVE Study). BMJ Open. 4(5). e004885–e004885. 23 indexed citations

17.

Nielsen, Roni, Mette Loftager, & L. Eriksen. (1990). Mucosal vaccination against Actinobacillus pleuropneumoniae infection.. 1 indexed citations

18.

Melgaard, B & Roni Nielsen. (1977). Electromyographic findings in amyloid polyneuropathy.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 17(1). 31–4. 2 indexed citations

19.

Ullman, Susanne, et al.. (1975). Deposits of immunoglobulins and complement in the dermoepidermal junction of patients with anaphylactoid purpura. Acta Dermato Venereologica. 55(5). 359–362. 10 indexed citations

20.

Nielsen, Roni. (1970). Haemophilus parahaemolyticus as the cause of pleuropneumonia in pigs. II. Studies on the identity and pathogenicity of the organism located.. 22. 246–255. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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