Per‐Otto Hagen

1.4k total citations
52 papers, 1.1k citations indexed

About

Per‐Otto Hagen is a scholar working on Cardiology and Cardiovascular Medicine, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Per‐Otto Hagen has authored 52 papers receiving a total of 1.1k indexed citations (citations by other indexed papers that have themselves been cited), including 26 papers in Cardiology and Cardiovascular Medicine, 21 papers in Surgery and 10 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Per‐Otto Hagen's work include Coronary Interventions and Diagnostics (12 papers), Nitric Oxide and Endothelin Effects (9 papers) and Cardiac Valve Diseases and Treatments (9 papers). Per‐Otto Hagen is often cited by papers focused on Coronary Interventions and Diagnostics (12 papers), Nitric Oxide and Endothelin Effects (9 papers) and Cardiac Valve Diseases and Treatments (9 papers). Per‐Otto Hagen collaborates with scholars based in United States, Russia and Norway. Per‐Otto Hagen's co-authors include Eileen M. Mikat, Richard L. McCann, Mark G. Davies, Howard Goldfine, Raymond G. Makhoul, Einar Svendsen, Zhonggao Wang, Donald B. Hackel, Culley C. Carson and Michael L. Klyachkin and has published in prestigious journals such as Journal of the American College of Cardiology, Annals of Surgery and Biochemical and Biophysical Research Communications.

In The Last Decade

Per‐Otto Hagen

52 papers receiving 1.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Per‐Otto Hagen United States 19 535 358 209 199 193 52 1.1k
Paul F. McDonagh United States 22 158 0.3× 221 0.6× 230 1.1× 102 0.5× 151 0.8× 51 1.2k
Noboru Watanabe Japan 21 312 0.6× 353 1.0× 409 2.0× 190 1.0× 62 0.3× 68 1.3k
Yoshiyuki Ozono Japan 19 223 0.4× 195 0.5× 255 1.2× 199 1.0× 165 0.9× 70 1.3k
Patrick Lacolley France 17 194 0.4× 422 1.2× 236 1.1× 119 0.6× 185 1.0× 34 1.1k
K Röhrig Germany 18 272 0.5× 224 0.6× 554 2.7× 79 0.4× 784 4.1× 25 1.7k
Christiane Trimpert Germany 20 147 0.3× 420 1.2× 609 2.9× 245 1.2× 68 0.4× 33 1.2k
Chen-Fuh Lam Taiwan 17 204 0.4× 151 0.4× 238 1.1× 202 1.0× 138 0.7× 30 829
Boris Aleil France 11 505 0.9× 565 1.6× 161 0.8× 103 0.5× 55 0.3× 22 1.3k
Yoshio Oh-hashi Japan 15 249 0.5× 215 0.6× 422 2.0× 114 0.6× 320 1.7× 17 1.5k
Hanna Leskinen Finland 27 350 0.7× 999 2.8× 748 3.6× 174 0.9× 207 1.1× 53 1.9k

Countries citing papers authored by Per‐Otto Hagen

Since Specialization
Citations

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

Fields of papers citing papers by Per‐Otto Hagen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per‐Otto Hagen. 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 Per‐Otto Hagen. The network helps show where Per‐Otto Hagen may publish in the future.

Co-authorship network of co-authors of Per‐Otto Hagen

This figure shows the co-authorship network connecting the top 25 collaborators of Per‐Otto Hagen. A scholar is included among the top collaborators of Per‐Otto Hagen 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 Per‐Otto Hagen. Per‐Otto Hagen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Zhang, Lisheng, Per‐Otto Hagen, Joseph Kisslo, Karsten Peppel, & Neil J. Freedman. (2002). Neointimal hyperplasia rapidly reaches steady state in a novel murine vein graft model. Journal of Vascular Surgery. 36(4). 824–832. 39 indexed citations
2.
Davies, Mark G., Vickram Ramkumar, & Per‐Otto Hagen. (1998). Adenosine responses in experimental vein bypass grafts. Journal of Vascular Surgery. 28(5). 929–938. 3 indexed citations
3.
Huynh, Tam T., Guido Iaccarino, Mark G. Davies, et al.. (1998). Adenoviral-mediated inhibition of G[beta ][gamma ] signaling limits the hyperplastic response in experimental vein grafts. Surgery. 124(2). 177–186. 1 indexed citations
4.
Fulton, Gregory J., Mark G. Davies, Walter J. Koch, et al.. (1997). Antisense oligonucleotide to proto-oncogene c-myb inhibits the formation of intimal hyperplasia in experimental vein grafts. Journal of Vascular Surgery. 25(3). 453–463. 30 indexed citations
5.
Davies, Mark G., et al.. (1996). The Temporal Sequence of G-Protein Expression in Intimal Hyperplasia. Journal of Surgical Research. 63(1). 115–122. 13 indexed citations
6.
Anstadt, Mark P., Ruy Pérez-Tamayo, Mark G. Davies, et al.. (1996). Experimental Aortocoronary Saphenous Vein Graft Function After Mechanical Cardiac Massage With the Anstadt Cup. ASAIO Journal. 42(4). 295–300. 3 indexed citations
7.
Annex, Brian H., Mark G. Davies, Keith M. Channon, et al.. (1995). 1012-102 Alteration of Rabbit Carotid Artery Vasomotor Function by Gene Transfer with a Replication Deficient Adenovirus. Journal of the American College of Cardiology. 25(2). 366A–366A. 1 indexed citations
8.
Berkowitz, Dan E., et al.. (1995). Constitutive Nitric Oxide Synthase Is Expressed and Nitric Oxide-Mediated Relaxation Is Preserved in Retrieved Human Aortocoronary Vein Grafts. Journal of Surgical Research. 58(6). 732–738. 18 indexed citations
9.
Dalen, Helge, et al.. (1994). Control of the structural and functional consequences of vein graft intimal hyperplasia with a 21-aminosteroid—U74389G. European Journal of Vascular Surgery. 8(4). 448–456. 18 indexed citations
10.
Svendsen, Einar, et al.. (1994). The Functional and Morphological Consequences of Balloon Catheter Injury in Veins. Journal of Surgical Research. 57(1). 122–132. 10 indexed citations
11.
Kim, Jay H., et al.. (1994). Diabetes mellitus and experimental vein graft structure and function. Journal of Vascular Surgery. 19(6). 1031–1043. 14 indexed citations
12.
Hagen, Per‐Otto & Mark G. Davies. (1993). Endothelial Regulation of Vascular Tone. Annals of Surgery. 217(2). 203–2175. 6 indexed citations
13.
Park, Hae Young, et al.. (1993). Characterization of Calcium Channel Blocker Induced Smooth Muscle Relaxation Using a Model of Isolated Corpus Cavernosum. The Journal of Urology. 150(1). 249–252. 21 indexed citations
14.
Chen, Long‐En, et al.. (1993). Effect of denervation on endothelium‐derived relaxing factor‐dependent relaxation in the rat cremaster muscle. Microsurgery. 14(8). 494–500. 8 indexed citations
15.
Hagen, Per‐Otto. (1992). Cardiovascular significance of endothelium-derived vasoactivefactors. Journal of Vascular Surgery. 16(1). A4–A4. 29 indexed citations
16.
Sanfilippo, Fred, et al.. (1987). Morphologic and Ultrastructural Changes. Annals of Surgery. 206(6). 757–764. 33 indexed citations
17.
Molony, Leslie, Per‐Otto Hagen, & Frederick H. Schachat. (1986). Intermediate filament heterogeneity in normal and hypercholesterolemic rabbit vascular smooth muscle cells. Experimental Cell Research. 163(1). 78–86. 10 indexed citations
18.
Murray, John, Irwin Fridovich, Raymond G. Makhoul, & Per‐Otto Hagen. (1986). Stabilization and partial characterization of endothelium-derived relaxing factor from cultured bovine aortic endothelial cells. Biochemical and Biophysical Research Communications. 141(2). 689–696. 29 indexed citations
19.
Makhoul, Raymond G., Michael K. O’Malley, Eileen M. Mikat, et al.. (1985). Selective Supersensitivity to Norepinephrine in Intimal Thickened Rabbit Aorta. Journal of Vascular Research. 22(5). 252–256. 9 indexed citations
20.
Hagen, Per‐Otto. (1971). Glyceryl ether containing lipids of whole brains from germ‐free and conventional rats. Lipids. 6(3). 170–171. 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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