J. Usha Raj

8.0k total citations · 1 hit paper
181 papers, 5.3k citations indexed

About

J. Usha Raj is a scholar working on Pulmonary and Respiratory Medicine, Physiology and Molecular Biology. According to data from OpenAlex, J. Usha Raj has authored 181 papers receiving a total of 5.3k indexed citations (citations by other indexed papers that have themselves been cited), including 121 papers in Pulmonary and Respiratory Medicine, 55 papers in Physiology and 51 papers in Molecular Biology. Recurrent topics in J. Usha Raj's work include Pulmonary Hypertension Research and Treatments (82 papers), Neonatal Respiratory Health Research (54 papers) and Nitric Oxide and Endothelin Effects (47 papers). J. Usha Raj is often cited by papers focused on Pulmonary Hypertension Research and Treatments (82 papers), Neonatal Respiratory Health Research (54 papers) and Nitric Oxide and Endothelin Effects (47 papers). J. Usha Raj collaborates with scholars based in United States, China and Canada. J. Usha Raj's co-authors include Yuansheng Gao, Basil O. Ibe, Tianji Chen, Ramaswamy Ramchandran, Guofei Zhou, Deming Gou, Haiyan Zhou, Steven H. Abman, Joseph Anderson and D. Dunbar Ivy and has published in prestigious journals such as Journal of Biological Chemistry, Journal of Clinical Investigation and Physiological Reviews.

In The Last Decade

J. Usha Raj

176 papers receiving 5.2k citations

Hit 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.

Pediatric Pulmonary Hypertension

2013 323 citations D. Dunbar Ivy, Steven H. Abman et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
J. Usha Raj United States	40	3.1k	1.8k	1.0k	981	976	181	5.3k
Timothy D. Le Cras United States	40	3.5k 1.1×	1.2k 0.7×	1.5k 1.5×	406 0.4×	542 0.6×	92	5.8k
Kentaro Tanaka Japan	42	1.6k 0.5×	1.4k 0.8×	614 0.6×	875 0.9×	681 0.7×	307	6.7k
David M. Rodman United States	40	3.3k 1.0×	1.6k 0.9×	2.1k 2.0×	273 0.3×	1.2k 1.2×	100	5.6k
Rory E. Morty Germany	48	3.3k 1.1×	2.0k 1.1×	397 0.4×	346 0.4×	351 0.4×	159	5.8k
Yuichi Takiguchi Japan	38	2.2k 0.7×	1.2k 0.7×	972 1.0×	501 0.5×	359 0.4×	251	5.1k
Takayuki Kuriyama Japan	38	2.2k 0.7×	902 0.5×	1.4k 1.4×	304 0.3×	788 0.8×	176	4.9k
Frank Rose Germany	39	2.9k 0.9×	1.6k 0.9×	862 0.9×	615 0.6×	1.3k 1.4×	68	5.1k
James West United States	49	4.1k 1.3×	2.2k 1.3×	454 0.4×	696 0.7×	1.7k 1.7×	172	6.4k
Yasunori Kasahara Japan	24	3.3k 1.0×	977 0.6×	712 0.7×	404 0.4×	805 0.8×	80	4.3k
Patricia A. Thistlethwaite United States	42	4.2k 1.3×	2.2k 1.3×	693 0.7×	867 0.9×	3.3k 3.4×	101	8.5k

Countries citing papers authored by J. Usha Raj

Since Specialization

Citations

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

Fields of papers citing papers by J. Usha Raj

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of J. Usha Raj

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

All Works

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20 of 20 papers shown

Raj, J. Usha, Richard D. Bland, Jahar Bhattacharya, Marlene Rabinovitch, & Michael A. Matthay. (2024). Life-saving effect of pulmonary surfactant in premature babies. Journal of Clinical Investigation. 134(9). 1 indexed citations

Rosenzweig, Erika B., Mary P. Mullen, Steven H. Abman, et al.. (2022). Cardiac Catheterization and Hemodynamics in a Multicenter Cohort of Children with Pulmonary Hypertension. Annals of the American Thoracic Society. 19(6). 1000–1012. 13 indexed citations

Abman, Steven H., Mary P. Mullen, Lynn A. Sleeper, et al.. (2021). Characterisation of paediatric pulmonary hypertensive vascular disease from the PPHNet Registry. European Respiratory Journal. 59(1). 2003337–2003337. 52 indexed citations

Gao, Yuansheng & J. Usha Raj. (2021). Extracellular Vesicles as Unique Signaling Messengers: Role in Lung Diseases. Comprehensive physiology. 11(1). 1351–1369. 1 indexed citations

Sun, Miranda, Ramaswamy Ramchandran, Jiwang Chen, Qiwei Yang, & J. Usha Raj. (2016). Smooth Muscle Insulin-Like Growth Factor-1 Mediates Hypoxia-Induced Pulmonary Hypertension in Neonatal Mice. American Journal of Respiratory Cell and Molecular Biology. 55(6). 779–791. 40 indexed citations

Gao, Yuansheng, Tianji Chen, & J. Usha Raj. (2016). Endothelial and Smooth Muscle Cell Interactions in the Pathobiology of Pulmonary Hypertension. American Journal of Respiratory Cell and Molecular Biology. 54(4). 451–460. 102 indexed citations

Zeng, Yan, Xiaoying Zhang, Kang Kang, et al.. (2016). MicroRNA-223 Attenuates Hypoxia-induced Vascular Remodeling by Targeting RhoB/MLC2 in Pulmonary Arterial Smooth Muscle Cells. Scientific Reports. 6(1). 24900–24900. 66 indexed citations

Raj, J. Usha & Richard D. Bland. (2015). Lung Luminal Liquid Clearance in Newborn Lambs. American Review of Respiratory Disease.

Chen, Tianji, Guofei Zhou, Qiyuan Zhou, et al.. (2015). Loss of MicroRNA-17∼92 in Smooth Muscle Cells Attenuates Experimental Pulmonary Hypertension via Induction of PDZ and LIM Domain 5. American Journal of Respiratory and Critical Care Medicine. 191(6). 678–692. 58 indexed citations

10.

Zhou, Guofei, Tianji Chen, & J. Usha Raj. (2014). MicroRNAs in Pulmonary Arterial Hypertension. American Journal of Respiratory Cell and Molecular Biology. 52(2). 139–151. 113 indexed citations

11.

Chen, Jiwang, Haiyang Tang, Justin R. Sysol, et al.. (2014). The Sphingosine Kinase 1/Sphingosine-1-Phosphate Pathway in Pulmonary Arterial Hypertension. American Journal of Respiratory and Critical Care Medicine. 190(9). 1032–1043. 115 indexed citations

12.

Zhou, Qiyuan, et al.. (2012). Knockdown of von Hippel–Lindau protein decreases lung cancer cell proliferation and colonization. FEBS Letters. 586(10). 1510–1515. 14 indexed citations

13.

Cerro, María Jesús del, Steven H. Abman, Gabriel Díaz, et al.. (2011). A Consensus Approach to the Classification of Pediatric Pulmonary Hypertensive Vascular Disease: Report from the PVRI Pediatric Taskforce, Panama 2011. Pulmonary Circulation. 1(2). 286–298. 170 indexed citations

14.

Ramchandran, Ramaswamy, et al.. (2011). Hypoxic Regulation of Pulmonary Vascular Smooth Muscle Cyclic Guanosine Monophosphate–Dependent Kinase by the Ubiquitin Conjugating System. American Journal of Respiratory Cell and Molecular Biology. 46(3). 323–330. 16 indexed citations

15.

Raj, J. Usha, et al.. (2010). Prolonged hypoxia modulates platelet activating factor receptor-mediated responses by fetal ovine pulmonary vascular smooth muscle cells. Molecular Genetics and Metabolism. 101(4). 400–408. 4 indexed citations

16.

Zhou, Weilin, et al.. (2008). Role of Epidermal Growth Factor Receptor in Ovine Fetal Pulmonary Vascular Remodeling Following Exposure to High Altitude Long-Term Hypoxia. High Altitude Medicine & Biology. 10(4). 365–372. 13 indexed citations

17.

Wang, Xiaohua, et al.. (2005). Hypoxia-induced reactive oxygen species downregulate ET_Breceptor-mediated contraction of rat pulmonary arteries. American Journal of Physiology-Lung Cellular and Molecular Physiology. 290(3). L570–L578. 32 indexed citations

18.

Ibe, Basil O., et al.. (1991). Endogenous Arachidonic Acid Metabolism by Calcium Ionophore A23187-stimulated Lamb Lungs: Effect of Hypoxia. American Journal of Respiratory Cell and Molecular Biology. 4(4). 379–385. 8 indexed citations

19.

Teague, W. Gerald, J. Usha Raj, David Braun, et al.. (1987). Lung Vascular Effects of Lipid Infusion in Awake Lambs. Pediatric Research. 22(6). 714–719. 10 indexed citations

20.

Raj, J. Usha, et al.. (1984). Micro vascular pressures in nonedematous and edematous rabbit lungs. Federation Proceedings. 43(3). 1338. 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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