Roger J. Hajjar

41.3k total citations · 8 hit papers
500 papers, 28.9k citations indexed

About

Roger J. Hajjar is a scholar working on Cardiology and Cardiovascular Medicine, Molecular Biology and Surgery. According to data from OpenAlex, Roger J. Hajjar has authored 500 papers receiving a total of 28.9k indexed citations (citations by other indexed papers that have themselves been cited), including 323 papers in Cardiology and Cardiovascular Medicine, 286 papers in Molecular Biology and 82 papers in Surgery. Recurrent topics in Roger J. Hajjar's work include Cardiac electrophysiology and arrhythmias (127 papers), Viral Infections and Immunology Research (95 papers) and Cardiomyopathy and Myosin Studies (90 papers). Roger J. Hajjar is often cited by papers focused on Cardiac electrophysiology and arrhythmias (127 papers), Viral Infections and Immunology Research (95 papers) and Cardiomyopathy and Myosin Studies (90 papers). Roger J. Hajjar collaborates with scholars based in United States, France and South Korea. Roger J. Hajjar's co-authors include Judith K. Gwathmey, Federica del Monte, Anthony Rosenzweig, Djamel Lebeche, Ulrich Schmidt, Kiyotake Ishikawa, Evangelia G. Kranias, Takashi Matsui, Dongtak Jeong and Antoine H. Chaanine and has published in prestigious journals such as Nature, New England Journal of Medicine and Proceedings of the National Academy of Sciences.

In The Last Decade

Roger J. Hajjar

493 papers receiving 28.5k citations

Hit Papers

5 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.

Apoptosis in Myocytes in End-Stage Heart Failure

1996 1.1k citations Roger J. Hajjar et al. profile →
Akt Activation Preserves Cardiac Function and Prevents Injury After Transient Cardiac Ischemia In Vivo

2001 594 citations Federica del Monte, Roger J. Hajjar et al. Circulation profile →
Calcium Upregulation by Percutaneous Administration of Gene Therapy in Cardiac Disease (CUPID)

2011 548 citations Mariell Jessup, Barry Greenberg et al. Circulation profile →
Accelerated Atherosclerosis, Aortic Aneurysm Formation, and Ischemic Heart Disease in Apolipoprotein E/Endothelial Nitric Oxide Synthase Double-Knockout Mice

2001 502 citations Roger J. Hajjar et al. Circulation profile →
Periostin induces proliferation of differentiated cardiomyocytes and promotes cardiac repair

2007 501 citations Federica del Monte, Roger J. Hajjar et al. profile →
Empagliflozin Ameliorates Adverse Left Ventricular Remodeling in Nondiabetic Heart Failure by Enhancing Myocardial Energetics

2019 474 citations Roger J. Hajjar, Valentı́n Fuster et al. profile →
FTO-Dependent N ⁶ -Methyladenosine Regulates Cardiac Function During Remodeling and Repair

2018 452 citations Prabhu Mathiyalagan, Yassine Sassi et al. Circulation profile →
Modulation of Cardiac Contractility by the Phopholamban/SERCA2a Regulatome

2012 375 citations Evangelia G. Kranias, Roger J. Hajjar Circulation Research profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Roger J. Hajjar United States	90	17.5k	14.6k	4.3k	3.0k	2.2k	500	28.9k
Masatsugu Hori Japan	91	10.7k 0.6×	11.3k 0.8×	5.4k 1.3×	2.8k 0.9×	2.2k 1.0×	537	33.2k
Kenneth R. Chien United States	110	29.4k 1.7×	15.0k 1.0×	6.9k 1.6×	4.0k 1.3×	2.1k 1.0×	303	41.1k
Joseph A. Hill United States	95	23.3k 1.3×	10.5k 0.7×	5.2k 1.2×	2.0k 0.6×	5.4k 2.5×	352	39.8k
Ryuichi Morishita Japan	81	11.1k 0.6×	4.1k 0.3×	5.7k 1.3×	2.6k 0.8×	2.7k 1.2×	586	25.4k
Jeffery D. Molkentin United States	124	39.3k 2.2×	19.7k 1.4×	7.5k 1.7×	2.9k 1.0×	3.6k 1.6×	430	54.9k
Bradford C. Berk United States	100	16.6k 0.9×	7.2k 0.5×	3.6k 0.8×	835 0.3×	2.3k 1.0×	318	29.8k
Anthony Rosenzweig United States	73	9.9k 0.6×	7.0k 0.5×	2.0k 0.5×	1.1k 0.4×	1.8k 0.8×	186	19.9k
Mark L. Entman United States	88	10.4k 0.6×	10.0k 0.7×	6.0k 1.4×	609 0.2×	1.6k 0.7×	295	23.9k
Piero Anversa United States	94	20.4k 1.2×	15.2k 1.0×	15.9k 3.7×	1.0k 0.3×	1.8k 0.8×	331	40.7k
Keiichi Fukuda Japan	74	8.9k 0.5×	8.9k 0.6×	6.5k 1.5×	742 0.2×	934 0.4×	772	23.3k

Countries citing papers authored by Roger J. Hajjar

Since Specialization

Citations

This map shows the geographic impact of Roger J. Hajjar'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 Roger J. Hajjar with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roger J. Hajjar more than expected).

Fields of papers citing papers by Roger J. Hajjar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roger J. Hajjar. 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 Roger J. Hajjar. The network helps show where Roger J. Hajjar may publish in the future.

Co-authorship network of co-authors of Roger J. Hajjar

This figure shows the co-authorship network connecting the top 25 collaborators of Roger J. Hajjar. A scholar is included among the top collaborators of Roger J. Hajjar 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 Roger J. Hajjar. Roger J. Hajjar 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

Zaleta-Rivera, Kathia, Alexandra Dainis, Alexandre J. S. Ribeiro, et al.. (2019). Allele-Specific Silencing Ameliorates Restrictive Cardiomyopathy Attributable to a Human Myosin Regulatory Light Chain Mutation. Circulation. 140(9). 765–778. 34 indexed citations

Bisserier, Malik, Carlos Bueno‐Betí, Guillaume Bonnet, et al.. (2019). A novel secreted-cAMP pathway inhibits pulmonary hypertension via a feed-forward mechanism. Cardiovascular Research. 116(8). 1500–1513. 18 indexed citations

Bueno‐Betí, Carlos, Yassine Sassi, Roger J. Hajjar, & Lahouaria Hadri. (2018). Pulmonary Artery Hypertension Model in Rats by Monocrotaline Administration. Methods in molecular biology. 1816. 233–241. 29 indexed citations

Liang, Yaxuan, Prabhu Mathiyalagan, Erik Kohlbrenner, et al.. (2017). Abstract 15439: AAV-Containing Exosomes as a Novel Vector to Improve AAV-Mediated Myocardial Gene Delivery in Resistance to Neutralizing Antibody. Circulation. 5 indexed citations

Jang, Seung Pil, Jae Gyun Oh, Dong Hoon Kang, et al.. (2016). A Decoy Peptide Targeted to Protein Phosphatase 1 Attenuates Degradation of SERCA2a in Vascular Smooth Muscle Cells. PLoS ONE. 11(10). e0165569–e0165569. 2 indexed citations

Lee, Ah Young, Dongtak Jeong, Shinichi Mitsuyama, et al.. (2014). The Role of SUMO-1 in Cardiac Oxidative Stress and Hypertrophy. Antioxidants and Redox Signaling. 21(14). 1986–2001. 60 indexed citations

Lipskaia, Larissa, Zela Keuylian, Adeline Jacquet, et al.. (2014). Expression of sarco (endo) plasmic reticulum calcium ATPase (SERCA) system in normal mouse cardiovascular tissues, heart failure and atherosclerosis. Biochimica et Biophysica Acta (BBA) - Molecular Cell Research. 1843(11). 2705–2718. 66 indexed citations

Zsebo, Krisztina M., Alex Yaroshinsky, J Rudy, et al.. (2013). Long-Term Effects of AAV1/SERCA2a Gene Transfer in Patients With Severe Heart Failure. Circulation Research. 114(1). 101–108. 227 indexed citations

Cutler, Michael J., Xiaoping Wan, Haiyan Liu, et al.. (2012). Targeted Sarcoplasmic Reticulum Ca ²⁺ ATPase 2a Gene Delivery to Restore Electrical Stability in the Failing Heart. Circulation. 126(17). 2095–2104. 86 indexed citations

10.

Mahoney, Christopher E., Diane E. Handy, Kevin P. White, et al.. (2012). Bone Morphogenetic Protein‐2 Decreases MicroRNA‐30b and MicroRNA‐30c to Promote Vascular Smooth Muscle Cell Calcification. Journal of the American Heart Association. 1(6). e003905–e003905. 115 indexed citations

11.

Kranias, Evangelia G. & Roger J. Hajjar. (2012). Modulation of Cardiac Contractility by the Phopholamban/SERCA2a Regulatome. Circulation Research. 110(12). 1646–1660. 375 indexed citations breakdown →

12.

Lyon, Alexander R., Viacheslav O. Nikolaev, Michele Miragoli, et al.. (2012). Plasticity of Surface Structures and β ₂ -Adrenergic Receptor Localization in Failing Ventricular Cardiomyocytes During Recovery From Heart Failure. Circulation Heart Failure. 5(3). 357–365. 81 indexed citations

13.

Chaanine, Antoine H., Dongtak Jeong, Liang Li, et al.. (2012). JNK modulates FOXO3a for the expression of the mitochondrial death and mitophagy marker BNIP3 in pathological hypertrophy and in heart failure. Cell Death and Disease. 3(2). e265–e265. 130 indexed citations

14.

Jessup, Mariell, Barry Greenberg, Donna Mancini, et al.. (2011). Calcium Upregulation by Percutaneous Administration of Gene Therapy in Cardiac Disease (CUPID). Circulation. 124(3). 304–313. 548 indexed citations breakdown →

15.

Lyon, Alexander R., Mark L. Bannister, Emma Pearce, et al.. (2011). SERCA2a Gene Transfer Decreases Sarcoplasmic Reticulum Calcium Leak and Reduces Ventricular Arrhythmias in a Model of Chronic Heart Failure. Circulation Arrhythmia and Electrophysiology. 4(3). 362–372. 138 indexed citations

16.

Karakikes, Ioannis, Lisa Edelmann, Robert J. Desnick, et al.. (2010). Amniotic Fluid Cells Are More Efficiently Reprogrammed to Pluripotency Than Adult Cells. Cellular Reprogramming. 12(2). 117–125. 68 indexed citations

17.

Lompré, Anne‐Marie, Roger J. Hajjar, Siân E. Harding, et al.. (2010). Ca ²⁺ Cycling and New Therapeutic Approaches for Heart Failure. Circulation. 121(6). 822–830. 99 indexed citations

18.

Lee, Minah, Hyeseon Cha, Jooyeon Kim, et al.. (2010). The opposing effects of CCN2 and CCN5 on the development of cardiac hypertrophy and fibrosis. Journal of Molecular and Cellular Cardiology. 49(2). 294–303. 118 indexed citations

19.

Cutler, Michael J., Xiaoping Wan, Kenneth R. Laurita, Roger J. Hajjar, & David Rosenbaum. (2009). Targeted SERCA2a Gene Expression Identifies Molecular Mechanism and Therapeutic Target for Arrhythmogenic Cardiac Alternans. Circulation Arrhythmia and Electrophysiology. 2(6). 686–694. 92 indexed citations

20.

Tsuji, Tsuyoshi, Federica del Monte, Yoshiro Yoshikawa, et al.. (2008). Rescue of Ca²⁺ overload-induced left ventriclur dysfunction by targeted ablation of phospholamban. American Journal of Physiology-Heart and Circulatory Physiology. 296(2). H310–H317. 34 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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