Katherine A. Hajjar

15.2k total citations · 5 hit papers
116 papers, 12.0k citations indexed

About

Katherine A. Hajjar is a scholar working on Molecular Biology, Hematology and Cancer Research. According to data from OpenAlex, Katherine A. Hajjar has authored 116 papers receiving a total of 12.0k indexed citations (citations by other indexed papers that have themselves been cited), including 84 papers in Molecular Biology, 55 papers in Hematology and 55 papers in Cancer Research. Recurrent topics in Katherine A. Hajjar's work include S100 Proteins and Annexins (63 papers), Blood Coagulation and Thrombosis Mechanisms (51 papers) and Protease and Inhibitor Mechanisms (49 papers). Katherine A. Hajjar is often cited by papers focused on S100 Proteins and Annexins (63 papers), Blood Coagulation and Thrombosis Mechanisms (51 papers) and Protease and Inhibitor Mechanisms (49 papers). Katherine A. Hajjar collaborates with scholars based in United States, Mexico and Japan. Katherine A. Hajjar's co-authors include Ralph L. Nachman, Andrew T. Jacovina, Gabriela Cesarman‐Maus, John Chapin, Roy L. Silverstein, P C Harpel, Arunkumar B. Deora, Jan L. Breslow, Gabriela Cesarman and David Lyden and has published in prestigious journals such as Nature, New England Journal of Medicine and Proceedings of the National Academy of Sciences.

In The Last Decade

Katherine A. Hajjar

115 papers receiving 11.7k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Impaired recruitment of bone-marrow–derived endothelial and hematopoietic precursor cells blocks tumor angiogenesis and growth

2001 1.5k citations David Lyden, Katherine A. Hajjar et al. profile →
The perivascular niche regulates breast tumour dormancy

2013 843 citations Cyrus M. Ghajar, Héctor Peinado et al. Nature Cell Biology profile →
Lipoprotein(a) modulation of endothelial cell surface fibrinolysis and its potential role in atherosclerosis

1989 586 citations Katherine A. Hajjar, Ralph L. Nachman et al. profile →
Fibrinolysis and the control of blood coagulation

2014 557 citations Katherine A. Hajjar et al. profile →
Molecular mechanisms of fibrinolysis

2005 528 citations Gabriela Cesarman‐Maus, Katherine A. Hajjar profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Katherine A. Hajjar United States	55	5.7k	3.8k	3.2k	1.9k	1.7k	116	12.0k
Florea Lupu United States	60	4.3k 0.7×	2.7k 0.7×	2.8k 0.9×	3.4k 1.8×	1.2k 0.7×	182	12.3k
Désiré Collen Belgium	56	4.1k 0.7×	3.1k 0.8×	2.5k 0.8×	880 0.5×	1.1k 0.6×	133	10.2k
Daniel A. Lawrence United States	65	4.6k 0.8×	6.5k 1.7×	4.3k 1.3×	1.2k 0.6×	1.0k 0.6×	215	13.1k
Wun-Jing Kuang United States	12	5.8k 1.0×	1.9k 0.5×	1.7k 0.5×	2.0k 1.1×	2.5k 1.4×	12	11.7k
Wolfram Ruf United States	70	4.0k 0.7×	2.2k 0.6×	9.1k 2.8×	2.4k 1.3×	1.3k 0.7×	280	15.7k
Mark B. Taubman United States	56	3.1k 0.5×	1.5k 0.4×	1.8k 0.6×	1.9k 1.0×	1.4k 0.8×	115	9.1k
Paul H.A. Quax Netherlands	59	5.2k 0.9×	3.0k 0.8×	894 0.3×	2.6k 1.4×	1.6k 0.9×	295	11.7k
Anton Jan van Zonneveld Netherlands	57	5.0k 0.9×	3.1k 0.8×	1.9k 0.6×	1.1k 0.6×	874 0.5×	211	10.6k
Evelyn Flynn United States	36	6.8k 1.2×	3.1k 0.8×	1.3k 0.4×	864 0.5×	2.5k 1.4×	66	11.4k
Renate E. Gay Switzerland	65	5.5k 1.0×	2.6k 0.7×	1.2k 0.4×	3.5k 1.9×	2.1k 1.2×	174	13.4k

Countries citing papers authored by Katherine A. Hajjar

Since Specialization

Citations

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

Fields of papers citing papers by Katherine A. Hajjar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Katherine A. Hajjar. 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 Katherine A. Hajjar. The network helps show where Katherine A. Hajjar may publish in the future.

Co-authorship network of co-authors of Katherine A. Hajjar

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

1.

Luo, Min, Dena Almeida, Nadia Hedhli, et al.. (2024). Annexin A2 promotes proliferative vitreoretinopathy in response to a macrophage inflammatory signal in mice. Nature Communications. 15(1). 8757–8757. 4 indexed citations

2.

Liu, Wei, et al.. (2023). Blockade of Annexin A2 Prevents Early Microvasculopathy in Murine Models of Diabetic Retinopathy. Investigative Ophthalmology & Visual Science. 64(4). 33–33. 2 indexed citations

3.

Banerjee, Kalpita, Guillermo L. Lehmann, Dena Almeida, et al.. (2021). Lipofuscin causes atypical necroptosis through lysosomal membrane permeabilization. Proceedings of the National Academy of Sciences. 118(47). 62 indexed citations

4.

Ghajar, Cyrus M., Héctor Peinado, Hidetoshi Mori, et al.. (2013). The perivascular niche regulates breast tumour dormancy. Nature Cell Biology. 15(7). 807–817. 843 indexed citations breakdown →

5.

Harris, Kelly L., et al.. (2013). Decreased Expression of Surface Annexin A2 in Human Sepsis Syndrome. CHEST Journal. 144(4). 408A–408A. 1 indexed citations

6.

Cesarman‐Maus, Gabriela, et al.. (2010). Autoantibodies Against the Fibrinolytic Receptor, Annexin A2, in Cerebral Venous Thrombosis. Stroke. 42(2). 501–503. 26 indexed citations

7.

Law, Ah-Lai, Ling Qi, Katherine A. Hajjar, et al.. (2009). Annexin A2 Regulates Phagocytosis of Photoreceptor Outer Segments in the Mouse Retina. Molecular Biology of the Cell. 20(17). 3896–3904. 60 indexed citations

8.

Ballard, Victoria L. T., Arti Sharma, Inga Duignan, et al.. (2006). Vascular tenascin‐C regulates cardiac endothelial phenotype and neovascularization. The FASEB Journal. 20(6). 717–719. 69 indexed citations

9.

Qi, Ling, Andrew T. Jacovina, Arunkumar B. Deora, et al.. (2004). Annexin II regulates fibrin homeostasis and neoangiogenesis in vivo. Journal of Clinical Investigation. 113(1). 38–48. 318 indexed citations

10.

Qi, Ling, Andrew T. Jacovina, Arunkumar B. Deora, et al.. (2004). Annexin II regulates fibrin homeostasis and neoangiogenesis in vivo. Journal of Clinical Investigation. 113(1). 38–48. 17 indexed citations

11.

Hajjar, Katherine A., Laura Mauri, Andrew T. Jacovina, et al.. (1998). Tissue Plasminogen Activator Binding to the Annexin II Tail Domain. Journal of Biological Chemistry. 273(16). 9987–9993. 198 indexed citations

12.

Hajjar, Katherine A. & Andrew T. Jacovina. (1998). Modulation of Annexin II by Homocysteine: Implications for Atherothrombosis. Journal of Investigative Medicine. 46(8). 364–369. 34 indexed citations

13.

Chacko, George, Ling Qi, & Katherine A. Hajjar. (1998). Induction of Acute Translational Response Genes by Homocysteine. Journal of Biological Chemistry. 273(31). 19840–19846. 23 indexed citations

14.

Mitra, Debashis, Eric Jaffe, Babette B. Weksler, et al.. (1997). Thrombotic Thrombocytopenic Purpura and Sporadic Hemolytic-Uremic Syndrome Plasmas Induce Apoptosis in Restricted Lineages of Human Microvascular Endothelial Cells. Blood. 89(4). 1224–1234. 137 indexed citations

15.

Marcus, Aaron J., M. Johan Broekman, Joan H.F. Drosopoulos, et al.. (1997). The endothelial cell ecto-ADPase responsible for inhibition of platelet function is CD39.. Journal of Clinical Investigation. 99(6). 1351–1360. 324 indexed citations

16.

Hajjar, Katherine A.. (1995). Changing concepts in fibrinolysis. Current Opinion in Hematology. 2(5). 345–350. 10 indexed citations

17.

Hajjar, Katherine A.. (1993). Homocysteine-induced modulation of tissue plasminogen activator binding to its endothelial cell membrane receptor.. Journal of Clinical Investigation. 91(6). 2873–2879. 265 indexed citations

18.

Hajjar, Katherine A., et al.. (1993). Plasminogen and Plasminogen Activator Assembly on the Human Endothelial Cell. Experimental Biology and Medicine. 202(3). 258–264. 25 indexed citations

19.

Hajjar, D P, Aaron J. Marcus, & Katherine A. Hajjar. (1987). Interactions of arterial cells. Studies on the mechanisms of endothelial cell modulation of cholesterol metabolism in co-cultured smooth muscle cells.. Journal of Biological Chemistry. 262(15). 6976–6981. 37 indexed citations

20.

Nachman, Ralph L., Katherine A. Hajjar, Roy L. Silverstein, & C A Dinarello. (1986). Interleukin 1 induces endothelial cell synthesis of plasminogen activator inhibitor.. The Journal of Experimental Medicine. 163(6). 1595–1600. 273 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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