J P Leddy

1.2k total citations
35 papers, 961 citations indexed

About

J P Leddy is a scholar working on Hematology, Immunology and Physiology. According to data from OpenAlex, J P Leddy has authored 35 papers receiving a total of 961 indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Hematology, 18 papers in Immunology and 13 papers in Physiology. Recurrent topics in J P Leddy's work include Complement system in diseases (16 papers), Blood groups and transfusion (14 papers) and Erythrocyte Function and Pathophysiology (12 papers). J P Leddy is often cited by papers focused on Complement system in diseases (16 papers), Blood groups and transfusion (14 papers) and Erythrocyte Function and Pathophysiology (12 papers). J P Leddy collaborates with scholars based in United States, United Kingdom and Canada. J P Leddy's co-authors include S I Rosenfeld, R. John Looney, G N Abraham, Clark L. Anderson, Michael E. Kelly, D C Phipps, John Baum, Martin R. Klemperer, T A Gaither and Martin Frank and has published in prestigious journals such as Journal of Clinical Investigation, The Journal of Experimental Medicine and Blood.

In The Last Decade

J P Leddy

35 papers receiving 843 citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
J P Leddy 470 459 199 197 144 35 961
P Bird 218 0.5× 293 0.6× 145 0.7× 262 1.3× 52 0.4× 27 867
Anne Temple 433 0.9× 428 0.9× 64 0.3× 79 0.4× 84 0.6× 33 1.3k
S. F. Goldmann 278 0.6× 469 1.0× 77 0.4× 104 0.5× 59 0.4× 54 863
H Kodo 773 1.6× 600 1.3× 238 1.2× 76 0.4× 78 0.5× 50 1.4k
L Souza 551 1.2× 526 1.1× 112 0.6× 104 0.5× 112 0.8× 16 1.5k
Astrid Samuelsson 336 0.7× 687 1.5× 66 0.3× 478 2.4× 53 0.4× 10 1.2k
Richard Batchelor 358 0.8× 694 1.5× 128 0.6× 55 0.3× 39 0.3× 21 1.2k
Henrica R. E. Schuit 189 0.4× 359 0.8× 131 0.7× 167 0.8× 37 0.3× 16 743
BR Blazar 971 2.1× 1.1k 2.4× 196 1.0× 70 0.4× 52 0.4× 38 2.2k
Pedro Cano 806 1.7× 740 1.6× 102 0.5× 82 0.4× 54 0.4× 56 1.4k

Countries citing papers authored by J P Leddy

Since Specialization
Citations

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

Fields of papers citing papers by J P Leddy

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J P Leddy

This figure shows the co-authorship network connecting the top 25 collaborators of J P Leddy. A scholar is included among the top collaborators of J P Leddy 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 J P Leddy. J P Leddy 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
3.
Leddy, J P, et al.. (1993). Erythrocyte membrane proteins reactive with human (warm-reacting) anti-red cell autoantibodies.. Journal of Clinical Investigation. 91(4). 1672–1680. 67 indexed citations
4.
Leddy, J P, et al.. (1989). Secretion of the terminal complement proteins, C5–C9, by human platelets. Clinical Immunology and Immunopathology. 50(3). 385–393. 20 indexed citations
5.
Maddison, Peter J., David Isenberg, N. J. GOULDING, J P Leddy, & R P Skinner. (1988). ANTI La(SSB) IDENTIFIES A DISTINCTIVE SUBGROUP OF SYSTEMIC LUPUS ERYTHEMATOSUS. Lara D. Veeken. 27(1). 27–31. 32 indexed citations
6.
Rosenfeld, S I, Daniel H. Ryan, R. John Looney, et al.. (1987). Human Fc gamma receptors: stable inter-donor variation in quantitative expression on platelets correlates with functional responses.. The Journal of Immunology. 138(9). 2869–2873. 52 indexed citations
7.
Rosenfeld, S I, David Jenkins, & J P Leddy. (1986). Enhanced reactive lysis of paroxysmal nocturnal hemoglobinuria erythrocytes. Studies on C9 binding and incorporation into high molecular weight complexes.. The Journal of Experimental Medicine. 164(4). 981–997. 8 indexed citations
8.
Rosenfeld, S I, David Jenkins, & J P Leddy. (1985). Enhanced reactive lysis of paroxysmal nocturnal hemoglobinuria erythrocytes by C5b-9 does not involve increased C7 binding or cell-bound C3b.. The Journal of Immunology. 134(1). 506–511. 24 indexed citations
9.
Packman, Charles H., S I Rosenfeld, David Jenkins, & J P Leddy. (1980). Complement lysis of human erythrocytes. II. A unique interaction of human C8 and C9 with paroxysmal nocturnal hemoglobinuria erythrocytes.. The Journal of Immunology. 124(6). 2818–2823. 7 indexed citations
10.
Packman, Charles H., S I Rosenfeld, David Jenkins, & J P Leddy. (1978). Studies on the Lytic Sensitivity of Paroxysmal Nocturnal Hemoglobinuria (PNH) Erythrocytes (E). The Journal of Immunology. 120(5). 1790–1791. 1 indexed citations
11.
Breckenridge, Robert T., et al.. (1977). Hereditary C5 deficiency in man. III. Studies of hemostasis and platelet responses to zymosan.. PubMed. 118(1). 12–6. 15 indexed citations
12.
Leddy, J P, et al.. (1976). Platelet Function in Man: A Requirement for C5. The Journal of Immunology. 116(6). 1735–1735. 2 indexed citations
13.
Rosenfeld, S I, John Baum, Roy T. Steigbigel, & J P Leddy. (1976). Hereditary deficiency of the fifth component of complement in man. II. Biological properties of C5-deficient human serum.. Journal of Clinical Investigation. 57(6). 1635–1643. 51 indexed citations
15.
Leddy, J P, Martin Frank, T A Gaither, John Baum, & Martin R. Klemperer. (1974). Hereditary deficiency of the sixth component of complement in man. I. Immunochemical, biologic, and family studies.. Journal of Clinical Investigation. 53(2). 544–553. 83 indexed citations
16.
Heusinkveld, Robert S., J P Leddy, Martin R. Klemperer, & Robert T. Breckenridge. (1974). Hereditary deficiency of the sixth component of complement in man. II. Studies of hemostasis.. Journal of Clinical Investigation. 53(2). 554–558. 28 indexed citations
17.
Leddy, J P, et al.. (1970). Human Erythrocyte Membranes: Effect of Lipid Extraction on Binding of IgG (‘Warm’) Autoantibodies and Rh Isoantibodies1. Vox Sanguinis. 19(5-6). 444–450. 3 indexed citations
18.
Chadwick, Jessica, et al.. (1968). Thymic alymphoplasia associated with the hemolytic-uremic syndrome. The Journal of Pediatrics. 73(5). 714–724. 8 indexed citations
19.
Leddy, J P. (1966). Immunological aspects of red cell injury in man.. PubMed. 3(1). 48–73. 18 indexed citations
20.
Leddy, J P, et al.. (1962). Inactivation of the Skin-Sensitizing Antibodies of Human Allergy by Thiols. Experimental Biology and Medicine. 111(1). 7–12. 22 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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026