Karen Simpson

1.3k total citations
13 papers, 906 citations indexed

About

Karen Simpson is a scholar working on Immunology, Hematology and Public Health, Environmental and Occupational Health. According to data from OpenAlex, Karen Simpson has authored 13 papers receiving a total of 906 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Immunology, 4 papers in Hematology and 3 papers in Public Health, Environmental and Occupational Health. Recurrent topics in Karen Simpson's work include Mast cells and histamine (3 papers), Iron Metabolism and Disorders (3 papers) and Acute Lymphoblastic Leukemia research (2 papers). Karen Simpson is often cited by papers focused on Mast cells and histamine (3 papers), Iron Metabolism and Disorders (3 papers) and Acute Lymphoblastic Leukemia research (2 papers). Karen Simpson collaborates with scholars based in United States, United Kingdom and Switzerland. Karen Simpson's co-authors include J. D. Cook, Roy D. Baynes, B. Skikne, Bradley J. Ferguson, James Cook, Eugene R. Morris, Kottarappat N. Dileepan, Daniel J. Stechschulte, Ram Kumar Sharma and Robert L. Jilka and has published in prestigious journals such as New England Journal of Medicine, American Journal of Clinical Nutrition and Journal of Nutrition.

In The Last Decade

Karen Simpson

13 papers receiving 848 citations

Peers

Karen Simpson

HEMAT

GENET

IMMUN

RHEUM

Carol H. Flowers United States

Avital Weiss Israel

M. J. Pippard United Kingdom

BS Skikne United States

JD Cook United States

Bharat Bajantri United States

Erwin Kemna Netherlands

Yutaka Niihara United States

T. C. Iancu Israel

Herbert C. Lichtman United States

Carol H. Flowers United States

Karen Simpson

984 ×2.0

HEMAT

565 ×2.4

GENET

41 ×0.2

IMMUN

142 ×0.9

RHEUM

479 ×3.4

Citations per year, relative to Karen Simpson Karen Simpson (= 1×) peers Carol H. Flowers

Countries citing papers authored by Karen Simpson

Since Specialization

Citations

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

Fields of papers citing papers by Karen Simpson

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Karen Simpson

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

All Works

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13 of 13 papers shown

Silverman, Earl D., Richard Mouy, Lynn Spiegel, et al.. (2005). Leflunomide or Methotrexate for Juvenile Rheumatoid Arthritis. New England Journal of Medicine. 352(16). 1655–1666. 141 indexed citations

Khanna, Dinesh, Grace S. Park, Harold E. Paulus, et al.. (2005). Reduction of the efficacy of methotrexate by the use of folic acid: Post hoc analysis from two randomized controlled studies. Arthritis & Rheumatism. 52(10). 3030–3038. 67 indexed citations

Day, Christopher P., Justin O’Grady, D Mayer, et al.. (2004). A randomised controlled trial of calcineurin inhibitor (CNI) replacement with mycophenolate mofetil and steroids in liver transplant patients with renal dysfunction. Research Portal (King's College London). 40(4). 3 indexed citations

Lowe, Nicholas J., JOSHUA M. WIEDER, Alan Rosenbach, et al.. (1996). Long-term low-dose cyclosporine therapy for severe psoriasis: Effects on renal function and structure. Journal of the American Academy of Dermatology. 35(5). 710–719. 84 indexed citations

Chang, Cheng‐Tao, Jerry Nedelman, Albert Cohen, et al.. (1995). Efficacy and Pharmacokinetics of Two Formulations of Cyclosporine A in Patients with Psoriasis. The Journal of Clinical Pharmacology. 35(9). 865–875. 31 indexed citations

Ferguson, Bradley J., B. Skikne, Karen Simpson, Roy D. Baynes, & J. D. Cook. (1992). Serum transferrin receptor distinguishes the anemia of chronic disease from iron deficiency anemia.. PubMed. 119(4). 385–90. 314 indexed citations

Simpson, Karen, Kottarappat N. Dileepan, & Daniel J. Stechschulte. (1991). Potentiation of Antigen-Induced Mast Cell Activation by 1-34 Bovine Parathyroid Hormone. Experimental Biology and Medicine. 197(1). 44–48. 3 indexed citations

Simpson, Karen, et al.. (1990). Malignant mastocytosis with circulating mast cells. American Journal of Hematology. 34(4). 283–286. 18 indexed citations

Dileepan, Kottarappat N., Karen Simpson, & Daniel J. Stechschulte. (1989). Modulation of macrophage superoxide-induced cytochrome c reduction by mast cells.. PubMed. 113(5). 577–85. 14 indexed citations

10.

Stechschulte, Daniel J., Ram Kumar Sharma, Kottarappat N. Dileepan, et al.. (1987). Effect of the mi allele on mast cells, basophils, natural killer cells, and osteoclasts in C57BI/6J mice. Journal of Cellular Physiology. 132(3). 565–570. 98 indexed citations

11.

Simpson, Karen, Eugene R. Morris, & James Cook. (1981). The inhibitory effect of bran on iron absorption in man. American Journal of Clinical Nutrition. 34(8). 1469–1478. 105 indexed citations

12.

Morris, Eugene R., Karen Simpson, & J D Cook. (1980). Dephytinized vs. nondephytinized wheat bran and iron absorption in man.. American Journal of Clinical Nutrition. 33(4). 1 indexed citations

13.

Lipschitz, David A., Karen Simpson, James Cook, & Eugene R. Morris. (1979). Absorption of Monoferric Phytate by Dogs. Journal of Nutrition. 109(7). 1154–1160. 27 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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