Ujendra Kumar

5.5k total citations · 2 hit papers
66 papers, 4.3k citations indexed

About

Ujendra Kumar is a scholar working on Molecular Biology, Cellular and Molecular Neuroscience and Epidemiology. According to data from OpenAlex, Ujendra Kumar has authored 66 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Molecular Biology, 27 papers in Cellular and Molecular Neuroscience and 22 papers in Epidemiology. Recurrent topics in Ujendra Kumar's work include Receptor Mechanisms and Signaling (23 papers), Neuroendocrine Tumor Research Advances (22 papers) and Monoclonal and Polyclonal Antibodies Research (14 papers). Ujendra Kumar is often cited by papers focused on Receptor Mechanisms and Signaling (23 papers), Neuroendocrine Tumor Research Advances (22 papers) and Monoclonal and Polyclonal Antibodies Research (14 papers). Ujendra Kumar collaborates with scholars based in Canada, United States and France. Ujendra Kumar's co-authors include Shenglong Zou, Yogesh Patel, Magalie Rocheville, Ramesh C. Patel, Shutish C. Patel, Michael P. Grant, Ramakrishnan Sasi, Heather L. Watt, Rosemarie Panetta and Nedim Hukovic and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Journal of Biological Chemistry.

In The Last Decade

Ujendra Kumar

64 papers receiving 4.3k citations

Hit Papers

align trajectories sort by overperformance

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.

Cannabinoid Receptors and the Endocannabinoid System: Signaling and Function in the Central Nervous System

2018 915 citations Shenglong Zou, Ujendra Kumar International Journal of Molecular Sciences profile →
Receptors for Dopamine and Somatostatin: Formation of Hetero-Oligomers with Enhanced Functional Activity

2000 699 citations Magalie Rocheville, Ujendra Kumar et al. profile →

Author Peers

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

Author						Papers	Cites
Ujendra Kumar	1.8k	1.4k	1.3k	896	847	66	4.3k
Kazuhide Hayakawa	2.3k 1.3×	1.1k 0.8×	837 0.7×	179 0.2×	827 1.0×	111	6.5k
W. Feniuk	2.4k 1.4×	2.3k 1.7×	660 0.5×	388 0.4×	266 0.3×	100	6.0k
Mikko Hiltunen	2.5k 1.4×	975 0.7×	579 0.5×	279 0.3×	496 0.6×	157	5.9k
Philippe Sarret	2.1k 1.2×	2.5k 1.8×	310 0.2×	339 0.4×	759 0.9×	162	4.9k
Hagit Eldar-Finkelman	3.5k 2.0×	699 0.5×	482 0.4×	278 0.3×	382 0.5×	83	5.3k
Christoph Ullmer	1.8k 1.0×	1.0k 0.7×	340 0.3×	188 0.2×	450 0.5×	69	3.8k
Eugen Brailoiu	2.1k 1.2×	994 0.7×	405 0.3×	851 0.9×	620 0.7×	140	6.4k
Riitta Keinänen	1.6k 0.9×	1.0k 0.7×	232 0.2×	346 0.4×	324 0.4×	25	4.7k
Annakaisa Haapasalo	2.1k 1.2×	1.4k 1.0×	511 0.4×	182 0.2×	479 0.6×	109	5.3k
Pierre Carayon	1.3k 0.7×	1.2k 0.8×	189 0.1×	1.6k 1.8×	1.9k 2.2×	98	5.0k

Countries citing papers authored by Ujendra Kumar

Since Specialization

Citations

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

Fields of papers citing papers by Ujendra Kumar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ujendra Kumar

This figure shows the co-authorship network connecting the top 25 collaborators of Ujendra Kumar. A scholar is included among the top collaborators of Ujendra Kumar 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 Ujendra Kumar. Ujendra Kumar 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

Kumar, Ujendra, et al.. (2025). G-Protein-Coupled Receptor–Microtubule Interactions Regulate Neurite Development and Protect Against β-Amyloid Neurotoxicity. Molecular Neurobiology. 62(11). 13878–13898.

Kumar, Ujendra. (2023). Somatostatin and Somatostatin Receptors in Tumour Biology. International Journal of Molecular Sciences. 25(1). 436–436. 19 indexed citations

Zou, Shenglong & Ujendra Kumar. (2018). Cannabinoid Receptors and the Endocannabinoid System: Signaling and Function in the Central Nervous System. International Journal of Molecular Sciences. 19(3). 833–833. 915 indexed citations breakdown →

Kumar, Ujendra, et al.. (2013). G-Protein Coupled Receptors Dimerization: Diversity in Somatostatin Receptors Subtypes. 4(2). 3 indexed citations

Kharmate, Geetanjali, Padmesh S. Rajput, Yuchen Lin, & Ujendra Kumar. (2013). Inhibition of tumor promoting signals by activation of SSTR2 and opioid receptors in human breast cancer cells. Cancer Cell International. 13(1). 93–93. 32 indexed citations

Kumar, Ujendra, et al.. (2012). Coexpression of human somatostatin receptor-2 (SSTR2) and SSTR3 modulates antiproliferative signaling and apoptosis. PubMed. 7(1). 5–5. 24 indexed citations

Rajput, Padmesh S., Geetanjali Kharmate, & Ujendra Kumar. (2011). Colocalization of Somatostatin Receptors with DARPP-32 in Cortex and Striatum of Rat Brain. Journal of Molecular Neuroscience. 48(3). 696–705. 4 indexed citations

Kuan, Chien‐Tsun, Carol J. Wikstrand, Roger E. McLendon, et al.. (2009). Detection of Amino-terminal Extracellular Domain of Somatostatin Receptor 2 by Specific Monoclonal Antibodies and Quantification of Receptor Density in Medulloblastoma. Hybridoma. 28(6). 389–403. 5 indexed citations

Kumar, Ujendra & Michael P. Grant. (2009). Somatostatin and Somatostatin Receptors. Results and problems in cell differentiation. 50. 97–120. 80 indexed citations

10.

Watt, Heather L., Geetanjali Kharmate, & Ujendra Kumar. (2008). Somatostatin receptors 1 and 5 heterodimerize with epidermal growth factor receptor: Agonist-dependent modulation of the downstream MAPK signalling pathway in breast cancer cells. Cellular Signalling. 21(3). 428–439. 46 indexed citations

11.

Reynaert, Hendrik, Naoki Uyama, Nirjhar Chatterjee, et al.. (2007). Expression of somatostatin receptors in splanchnic blood vessels of normal and cirrhotic rats. Liver International. 27(6). 825–831. 10 indexed citations

12.

Pidasheva, Svetlana, Michael P. Grant, Lucie Canaff, et al.. (2006). Calcium-sensing receptor dimerizes in the endoplasmic reticulum: biochemical and biophysical characterization of CASR mutants retained intracellularly. Human Molecular Genetics. 15(14). 2200–2209. 94 indexed citations

13.

Watt, Heather L. & Ujendra Kumar. (2006). Colocalization of somatostatin receptors and epidermal growth factor receptors in breast cancer cells. Cancer Cell International. 6(1). 5–5. 25 indexed citations

14.

Ramírez, José, Heather L. Watt, Magalie Rocheville, & Ujendra Kumar. (2005). Agonist-induced up-regulation of human somatostatin receptor type 1 is regulated by β-arrestin-1 and requires an essential serine residue in the receptor C-tail. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1669(2). 182–192. 12 indexed citations

15.

Rivera, Juan, Haydar Alturaihi, & Ujendra Kumar. (2005). Differential regulation of somatostatin receptors 1 and 2 mRNA and protein expression by tamoxifen and estradiol in breast cancer cells.. Journal of Carcinogenesis. 4(1). 10–10. 18 indexed citations

16.

Grant, Michael P., B. Collier, & Ujendra Kumar. (2004). Agonist-dependent Dissociation of Human Somatostatin Receptor 2 Dimers. Journal of Biological Chemistry. 279(35). 36179–36183. 83 indexed citations

17.

Grant, Michael P., Ramesh C. Patel, & Ujendra Kumar. (2004). The Role of Subtype-specific Ligand Binding and the C-tail Domain in Dimer Formation of Human Somatostatin Receptors. Journal of Biological Chemistry. 279(37). 38636–38643. 65 indexed citations

18.

Papotti, Mauro, Ujendra Kumar, Marco Volante, Carla Pecchioni, & Yogesh Patel. (2001). Immunohistochemical detection of somatostatin receptor types 1–5 in medullary carcinoma of the thyroid. Clinical Endocrinology. 54(5). 641–649. 98 indexed citations

19.

Sidhu, Anita, et al.. (1998). Diminished expression of renal dopamine D1A receptors in the kidney inner medulla of the spontaneously hypertensive rat. Journal of Hypertension. 16(5). 601–608. 18 indexed citations

20.

Hukovic, Nedim, Rosemarie Panetta, Ujendra Kumar, & Yogesh Patel. (1996). Agonist-dependent regulation of cloned human somatostatin receptor types 1-5 (hSSTR1-5): subtype selective internalization or upregulation.. Endocrinology. 137(9). 4046–4049. 154 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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