Leif P. Andersen

1.8k total citations
40 papers, 1.5k citations indexed

About

Leif P. Andersen is a scholar working on Surgery, Immunology and Small Animals. According to data from OpenAlex, Leif P. Andersen has authored 40 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 36 papers in Surgery, 20 papers in Immunology and 11 papers in Small Animals. Recurrent topics in Leif P. Andersen's work include Helicobacter pylori-related gastroenterology studies (35 papers), Galectins and Cancer Biology (15 papers) and Eosinophilic Esophagitis (12 papers). Leif P. Andersen is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (35 papers), Galectins and Cancer Biology (15 papers) and Eosinophilic Esophagitis (12 papers). Leif P. Andersen collaborates with scholars based in Denmark, Sweden and Australia. Leif P. Andersen's co-authors include Henrik Nielsen, Torben Jørgensen, O Bonnevie, Steffen Jais Rosenstock, Nils Milman, Mario Milco D’Elios, Torkel Wadström, Jens Blom, Åsa Ljungh and Hans‐Olof Nilsson and has published in prestigious journals such as Gastroenterology, Applied and Environmental Microbiology and Gut.

In The Last Decade

Leif P. Andersen

40 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Leif P. Andersen Denmark 22 1.1k 458 275 242 225 40 1.5k
Q N Karim United Kingdom 18 795 0.7× 190 0.4× 303 1.1× 162 0.7× 282 1.3× 32 1.0k
Robert Logan United Kingdom 19 1.2k 1.0× 209 0.5× 601 2.2× 234 1.0× 346 1.5× 46 1.6k
R Karttunen Finland 20 878 0.8× 642 1.4× 173 0.6× 141 0.6× 122 0.5× 33 1.4k
David B. McGechie Australia 6 1.3k 1.1× 304 0.7× 379 1.4× 303 1.3× 269 1.2× 9 1.5k
D Boixeda Spain 24 1.1k 1.0× 239 0.5× 398 1.4× 139 0.6× 470 2.1× 124 1.7k
D. G. Newell United Kingdom 15 1.7k 1.5× 563 1.2× 384 1.4× 333 1.4× 630 2.8× 21 2.0k
Shinʼichi Takahashi Japan 22 1.2k 1.0× 173 0.4× 544 2.0× 272 1.1× 580 2.6× 83 1.6k
W. Langenberg Netherlands 11 1.7k 1.4× 350 0.8× 593 2.2× 408 1.7× 433 1.9× 15 1.8k
Helena Enroth Sweden 18 1.1k 0.9× 376 0.8× 155 0.6× 244 1.0× 247 1.1× 35 1.4k
Seiji Shiota Japan 29 2.0k 1.7× 725 1.6× 454 1.7× 411 1.7× 667 3.0× 78 2.3k

Countries citing papers authored by Leif P. Andersen

Since Specialization
Citations

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

Fields of papers citing papers by Leif P. Andersen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Leif P. Andersen. 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 Leif P. Andersen. The network helps show where Leif P. Andersen may publish in the future.

Co-authorship network of co-authors of Leif P. Andersen

This figure shows the co-authorship network connecting the top 25 collaborators of Leif P. Andersen. A scholar is included among the top collaborators of Leif P. Andersen 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 Leif P. Andersen. Leif P. Andersen 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.
Bediako‐Bowan, Antoinette, Stephanie Bjerrum, Leif P. Andersen, et al.. (2019). Genetic relationship between bacteria isolated from intraoperative air samples and surgical site infections at a major teaching hospital in Ghana. Journal of Hospital Infection. 104(3). 309–320. 15 indexed citations
2.
Aebischer, Toni, Thomas F. Meyer, & Leif P. Andersen. (2010). Inflammation, Immunity, and Vaccines for Helicobacter. Helicobacter. 15(s1). 21–28. 25 indexed citations
3.
Graff, Lykke Bjerglund, Leif P. Andersen, Annie Bremmelgaard, et al.. (2007). Helicobacter pylori and rheumatoid arthritis. Research at the University of Copenhagen (University of Copenhagen). 1(1). 68–73. 4 indexed citations
4.
Rosenstock, Steffen Jais, Torben Jørgensen, O Bonnevie, & Leif P. Andersen. (2004). Does Helicobacter pylori infection explain all socio‐economic differences in peptic ulcer incidence? Genetic and psychosocial markers for incident peptic ulcer disease in a large cohort of Danish adults. Scandinavian Journal of Gastroenterology. 39(9). 823–829. 24 indexed citations
5.
Hynes, Seán O., Bogumiła Szponar, Torkel Wadström, et al.. (2004). Comparative Chemical and Biological Characterization of the Lipopolysaccharides of Gastric and Enterohepatic Helicobacters. Helicobacter. 9(4). 313–323. 49 indexed citations
6.
Milman, Nils, Keld‐Erik Byg, Leif P. Andersen, et al.. (2003). Indigenous Greenlanders have a higher sero-prevalence of IgG antibodies to Helicobacter pylori than Danes. International Journal of Circumpolar Health. 62(1). 54–60. 10 indexed citations
7.
Liuba, Petru, Erkki Pesonen, Ilari Paakkari, et al.. (2003). Co-Infection with <i>Chlamydia pneumoniae</i> and <i>Helicobacter pylori</i> Results in Vascular Endothelial Dysfunction and Enhanced VCAM-1 Expression in ApoE-Knockout Mice. Journal of Vascular Research. 40(2). 115–122. 27 indexed citations
8.
Chen, Ming, Bente Jensen, Lin Zhai, et al.. (2002). Nizatidine and omeprazole enhance the effect of metronidazole on Helicobacter pylori in vitro. International Journal of Antimicrobial Agents. 19(3). 195–200. 5 indexed citations
9.
Petersen, Andreas Munk, Jens Blom, Leif P. Andersen, & Karen A. Krogfelt. (2000). Role of strain type, AGS cells and fetal calf serum inHelicobacter pyloriadhesion and invasion assays. FEMS Immunology & Medical Microbiology. 29(1). 59–67. 21 indexed citations
10.
Rosenstock, Steffen Jais, et al.. (2000). Serum ferritin increases after loss of igg antibodies to H. pylori; A prospective population-based cohort study comprising 1,947 danish adults. Gastroenterology. 118(4). A726–A726. 1 indexed citations
11.
Rosenstock, Steffen Jais, et al.. (2000). Heucobacter pylori infection does not affect overall mortality in denmark. A populationbased prospective cohort study comprising 3,590 danish adults. Gastroenterology. 118(4). A726–A727. 1 indexed citations
12.
Borre, Martin B., et al.. (1999). Helicobacter pyloridetection in human biopsies: a competitive PCR assay with internal control reveals false results. FEMS Immunology & Medical Microbiology. 24(2). 201–208. 21 indexed citations
13.
Milman, Nils, Steffen Jais Rosenstock, Leif P. Andersen, Torben Jørgensen, & O Bonnevie. (1998). Serum ferritin, hemoglobin, and Helicobacter pylori infection: A seroepidemiologic survey comprising 2794 Danish adults. Gastroenterology. 115(2). 268–274. 147 indexed citations
14.
Rosenstock, Steffen Jais, Leif P. Andersen, C. Rosenstock, O Bonnevie, & Torben Jørgensen. (1996). Socioeconomic factors in Helicobacter pylori infection among Danish adults.. American Journal of Public Health. 86(11). 1539–1544. 37 indexed citations
15.
Andersen, Leif P., Steffen Jais Rosenstock, O Bonnevie, & Torben J rgensen. (1996). Seroprevalence of Immunoglobulin G, M, and A Antibodies to Helicobacter pylori in an Unselected Danish Population. American Journal of Epidemiology. 143(11). 1157–1164. 45 indexed citations
16.
Borre, Martin B., Leif P. Andersen, L Elsborg, et al.. (1995). Development of a PCR-based technique for detection ofHelicobacter pylori. FEMS Immunology & Medical Microbiology. 10(3-4). 325–334. 38 indexed citations
17.
Nielsen, Henrik & Leif P. Andersen. (1992). Chemotactic activity of Helicobacter pylori sonicate for human polymorphonuclear leucocytes and monocytes.. Gut. 33(6). 738–742. 112 indexed citations
18.
Nielsen, Henrik & Leif P. Andersen. (1992). Activation of human phagocyte oxidative metabolism by Helicobacter pylori. Gastroenterology. 103(6). 1747–1753. 85 indexed citations
19.
Kristiansen, Jette E., T. Justesen, Eigill F. Hvidberg, & Leif P. Andersen. (1989). Trimipramine and Other Antipsychotics Inhibit Campylobacter Pylori in Vitro. Pharmacology & Toxicology. 64(4). 386–388. 8 indexed citations
20.
Andersen, Leif P., et al.. (1988). Nasopharyngeal Bacteriology and Secretory Otitis Media in Young Children. Acta Oto-Laryngologica. 105(1-2). 126–131. 28 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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