Ludger Leifeld

2.8k total citations
73 papers, 2.1k citations indexed

About

Ludger Leifeld is a scholar working on Hepatology, Epidemiology and Surgery. According to data from OpenAlex, Ludger Leifeld has authored 73 papers receiving a total of 2.1k indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Hepatology, 26 papers in Epidemiology and 22 papers in Surgery. Recurrent topics in Ludger Leifeld's work include Diverticular Disease and Complications (15 papers), Hepatitis C virus research (14 papers) and Liver Disease Diagnosis and Treatment (11 papers). Ludger Leifeld is often cited by papers focused on Diverticular Disease and Complications (15 papers), Hepatitis C virus research (14 papers) and Liver Disease Diagnosis and Treatment (11 papers). Ludger Leifeld collaborates with scholars based in Germany, United States and Switzerland. Ludger Leifeld's co-authors include Ulrich Spengler, Tilman Sauerbruch, Franz Ludwig Dumoulin, Christian Trautwein, Wolfgang Kruis, Michael P. Manns, Hans Dieter Nischalke, Christoph‐Thomas Germer, Jan Ramakers and Jacob Nattermann and has published in prestigious journals such as Gastroenterology, PLoS ONE and Hepatology.

In The Last Decade

Ludger Leifeld

68 papers receiving 2.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ludger Leifeld Germany 26 824 810 528 477 227 73 2.1k
Phillip Harrison United Kingdom 28 2.1k 2.5× 1.7k 2.1× 345 0.7× 749 1.6× 254 1.1× 76 3.1k
Éric Nguyen-Khac France 21 979 1.2× 1.3k 1.6× 330 0.6× 498 1.0× 177 0.8× 101 2.3k
Munther J. Hussain United Kingdom 25 1.3k 1.6× 1.2k 1.4× 642 1.2× 528 1.1× 144 0.6× 57 2.4k
Eli Brazowski Israel 26 500 0.6× 875 1.1× 630 1.2× 590 1.2× 400 1.8× 73 2.4k
Jörg Emmrich Germany 23 488 0.6× 491 0.6× 301 0.6× 825 1.7× 303 1.3× 43 1.6k
Montserrat Elena Spain 18 521 0.6× 598 0.7× 137 0.3× 517 1.1× 278 1.2× 27 1.6k
Isabel Ojanguren Spain 24 398 0.5× 756 0.9× 144 0.3× 291 0.6× 301 1.3× 53 1.6k
Stuart M. Curbishley United Kingdom 21 979 1.2× 799 1.0× 847 1.6× 482 1.0× 320 1.4× 38 2.2k
M.P. Manns Germany 24 970 1.2× 937 1.2× 256 0.5× 214 0.4× 297 1.3× 131 2.0k
Elie‐Serge Zafrani France 26 1.4k 1.7× 1.0k 1.3× 386 0.7× 586 1.2× 342 1.5× 55 2.8k

Countries citing papers authored by Ludger Leifeld

Since Specialization
Citations

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

Fields of papers citing papers by Ludger Leifeld

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ludger Leifeld. 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 Ludger Leifeld. The network helps show where Ludger Leifeld may publish in the future.

Co-authorship network of co-authors of Ludger Leifeld

This figure shows the co-authorship network connecting the top 25 collaborators of Ludger Leifeld. A scholar is included among the top collaborators of Ludger Leifeld 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 Ludger Leifeld. Ludger Leifeld 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.
Leifeld, Ludger, U Denzer, Thomas Frieling, et al.. (2023). Strukturelle, prozedurale und personelle Voraussetzungen für eine sektorenübergreifende Erbringung endoskopischer gastroenterologischer Leistungen. Zeitschrift für Gastroenterologie. 61(7). 799–809. 2 indexed citations
2.
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Frieling, Thomas, Angelika Behrens, Ludger Leifeld, et al.. (2019). Struktur der gastroenterologischen Abteilungen/Kliniken in Deutschland – eine Bestandsaufnahme durch eine Umfrage der Arbeitsgemeinschaft Leitender Gastroenterologischer Krankenhausärzte (ALGK). Zeitschrift für Gastroenterologie. 57(12). 1467–1475. 3 indexed citations
5.
Leifeld, Ludger, et al.. (2015). Prevention and Conservative Therapy of Diverticular Disease. Visceral Medicine. 31(2). 103–106. 2 indexed citations
6.
Kruis, Wolfgang, Christoph‐Thomas Germer, & Ludger Leifeld. (2014). Diverticular Disease: Guidelines of the German Society for Gastroenterology, Digestive and Metabolic Diseases and the German Society for General and Visceral Surgery. Digestion. 90(3). 190–207. 94 indexed citations
7.
Nischalke, Hans Dieter, Cordula Berger, Philipp Lutz, et al.. (2013). Influence of the CXCL1 rs4074 A Allele on Alcohol Induced Cirrhosis and HCC in Patients of European Descent. PLoS ONE. 8(11). e80848–e80848. 18 indexed citations
8.
Kruis, Wolfgang, et al.. (2012). The effect of third-party reporting on adoption of evidence-based mesalazine regimens in ulcerative colitis: An observational study. Journal of Crohn s and Colitis. 7(4). e125–e132. 2 indexed citations
9.
Leifeld, Ludger & Wolfgang Kruis. (2012). Management des toxischen Megakolons. Zeitschrift für Gastroenterologie. 50(3). 316–322. 2 indexed citations
10.
Kruis, Wolfgang, Alexander Katalinic, Tobias Klugmann, et al.. (2012). Predictive factors for an uncomplicated long-term course of Crohn's disease: A retrospective analysis. Journal of Crohn s and Colitis. 7(7). e263–e270. 23 indexed citations
11.
Leifeld, Ludger, Goran Söhl, Michael Hesse, et al.. (2009). Keratin 18 provides resistance to Fas‐mediated liver failure in mice. European Journal of Clinical Investigation. 39(6). 481–488. 7 indexed citations
12.
Leifeld, Ludger, et al.. (2006). Intrahepatic activation of caspases in human fulminant hepatic failure. Liver International. 26(7). 872–879. 17 indexed citations
13.
Schmitz, Volker, Frank Dombrowski, Jesús Prìeto, et al.. (2006). Induction of murine liver damage by overexpression of CD40 ligand provides an experimental model to study fulminant hepatic failure. Hepatology. 44(2). 430–439. 16 indexed citations
14.
Raskopf, E, Tobias Hilbert, Christian Rabe, et al.. (2005). Effective angiostatic treatment in a murine metastatic and orthotopic hepatoma model†. Hepatology. 41(6). 1233–1240. 31 indexed citations
15.
Leifeld, Ludger, Franz Ludwig Dumoulin, Ingvill Purr, et al.. (2003). Early up‐regulation of chemokine expression in fulminant hepatic failure. The Journal of Pathology. 199(3). 335–344. 89 indexed citations
16.
Leifeld, Ludger, et al.. (2002). Inducible nitric oxide synthase (iNOS) and endothelial nitric oxide synthase (eNOS) expression in fulminant hepatic failure. Journal of Hepatology. 37(5). 613–619. 48 indexed citations
17.
Streetz, Konrad L., Torsten Wüestefeld, Ludger Leifeld, et al.. (2002). The role of the IL6/gp130 system for liver disease progression. Journal of Hepatology. 36. 57–57. 1 indexed citations
18.
Altfeld, Marcus, Marylyn M. Addo, Karl Anton Kreuzer, et al.. (2000). TH1 to TH2 Shift of Cytokines in Peripheral Blood of HIV-Infected Patients Is Detectable by Reverse Transcriptase Polymerase Chain Reaction but Not by Enzyme-Linked Immunosorbent Assay Under Nonstimulated Conditions. JAIDS Journal of Acquired Immune Deficiency Syndromes. 23(4). 287–294. 42 indexed citations
19.
Altfeld, Marcus, Marylyn M. Addo, Karl Anton Kreuzer, et al.. (2000). TH1 to TH2 Shift of Cytokines in Peripheral Blood of HIV-Infected Patients Is Detectable by Reverse Transcriptase Polymerase Chain Reaction but Not by Enzyme-Linked Immunosorbent Assay Under Nonstimulated Conditions. JAIDS Journal of Acquired Immune Deficiency Syndromes. 23(4). 287–294. 26 indexed citations
20.
Dumoulin, Franz Ludwig, et al.. (1995). Intrahepatic expression of interleukin-10 mRNA in chronic liver disease. Gastroenterology. 108(4). A1059–A1059. 1 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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