Emmanuel C. Opara

5.5k total citations · 1 hit paper
142 papers, 4.2k citations indexed

About

Emmanuel C. Opara is a scholar working on Surgery, Endocrinology, Diabetes and Metabolism and Molecular Biology. According to data from OpenAlex, Emmanuel C. Opara has authored 142 papers receiving a total of 4.2k indexed citations (citations by other indexed papers that have themselves been cited), including 95 papers in Surgery, 49 papers in Endocrinology, Diabetes and Metabolism and 25 papers in Molecular Biology. Recurrent topics in Emmanuel C. Opara's work include Pancreatic function and diabetes (75 papers), Tissue Engineering and Regenerative Medicine (25 papers) and Diabetes Management and Research (25 papers). Emmanuel C. Opara is often cited by papers focused on Pancreatic function and diabetes (75 papers), Tissue Engineering and Regenerative Medicine (25 papers) and Diabetes Management and Research (25 papers). Emmanuel C. Opara collaborates with scholars based in United States, China and France. Emmanuel C. Opara's co-authors include William F. Kendall, Ann Petro, Marcus D. Darrabie, Eric M. Brey, Mark N. Feinglos, Richard S. Surwit, Alan C. Farney, Marc R. Garfinkel, Cynthia M. Kuhn and Monica L. Moya and has published in prestigious journals such as Journal of Clinical Investigation, Nature Communications and Gastroenterology.

In The Last Decade

Emmanuel C. Opara

136 papers receiving 4.1k 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.

Differential effects of fat and sucrose on the development of obesity and diabetes in C57BL/6J and mice

1995 539 citations Richard S. Surwit, Mark N. Feinglos et al. Metabolism profile →

Peers

Countries citing papers authored by Emmanuel C. Opara

Since Specialization

Citations

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

Fields of papers citing papers by Emmanuel C. Opara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Emmanuel C. Opara. 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 Emmanuel C. Opara. The network helps show where Emmanuel C. Opara may publish in the future.

Co-authorship network of co-authors of Emmanuel C. Opara

This figure shows the co-authorship network connecting the top 25 collaborators of Emmanuel C. Opara. A scholar is included among the top collaborators of Emmanuel C. Opara 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 Emmanuel C. Opara. Emmanuel C. Opara 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

#	Work	Indexed citations
1	Distinct Luteinization Profiles of Cultured Human Granulosa Cells From Small Antral and Preovulatory Follicles 2025 ·The Journal of Clinical Endocrinology & Metabolism ·(unknown), (unknown), Jane Alrø Bøtkjær, Jesús Cadenas, Sivanandane Sittadjody, Emmanuel C. Opara, Peter Sørensen, Kirsten Tryde Macklon, (unknown), Stine Gry Kristensen	0
2	Breakthroughs in 3D printing: functional human islets in an alginate-dECM bioink 2025 ·Cytotherapy ·(unknown), Wonwoo Jeong, Arunkumar Rengaraj, Lauren A. Byers, Gabriel González, (unknown), (unknown), Emmanuel C. Opara, (unknown), Andrey Mikhailov, Christopher A. Fraker, Alice A. Tomei, Stephen Lee, G. Orlando, (unknown)	0
3	Decellularized human pancreatic extracellular matrix-based physiomimetic microenvironment for human islet culture 2023 ·Acta Biomaterialia ·Amish Asthana, (unknown), Riccardo Tamburrini, Carlo Gazia, (unknown), Tamara Lozano‐Fernández, (unknown), (unknown), Alice A. Tomei, Christopher A. Fraker, Stephen J. Walker, Sang Jin Lee, Emmanuel C. Opara, Giuseppe Orlando	8
4	Development of a Novel Oral Delivery Vehicle for Probiotics 2020 ·Current Pharmaceutical Design ·(unknown), (unknown), Hariom Yadav, Mark E. Welker, Emmanuel C. Opara	19
5	Comprehensive characterization of the human pancreatic proteome for bioengineering applications 2020 ·Biomaterials ·Amish Asthana, Riccardo Tamburrini, Deborah Chaimov, Carlo Gazia, Stephen J. Walker, Mark Van Dyke, Alice A. Tomei, Sandrine Lablanche, John L. Robertson, Emmanuel C. Opara, Shay Söker, Giuseppe Orlando	21
6	Detergent-Free Decellularization of the Human Pancreas for Soluble Extracellular Matrix (ECM) Production 2020 ·Journal of Visualized Experiments ·Riccardo Tamburrini, Deborah Chaimov, Amish Asthana, Carlo Gazia, (unknown), (unknown), (unknown), Sandrine Lablanche, Emily Tubbs, Alice A. Tomei, Mark Van Dyke, Shay Söker, Emmanuel C. Opara, Giuseppe Orlando	12
7	Combinations of Activin A or Nicotinamide with the Pancreatic Transcription Factor PDX1 Support Differentiation of Human Amnion Epithelial Cells Toward a Pancreatic Lineage 2017 ·Cellular Reprogramming ·(unknown), Yu Zhou, Emmanuel C. Opara, Shay Söker	6
8	Imaging of Hydrogel Microsphere Structure and Foreign Body Response Based on Endogenous X-Ray Phase Contrast 2016 ·Tissue Engineering Part C Methods ·Alyssa A. Appel, (unknown), Sami I. Somo, Jeffery C. Larson, (unknown), (unknown), John P. McQuilling, Zhong Zhong, Mark A. Anastasio, Emmanuel C. Opara, Eric M. Brey	5
9	Evolution of Islet Transplantation for the Last 30 Years 2015 ·Pancreas ·Alan C. Farney, David E.R. Sutherland, Emmanuel C. Opara	67
10	Scientific principles of regenerative medicine and their application in the female reproductive system 2013 ·Maturitas ·T.M. Yalcinkaya, Sivanandane Sittadjody, Emmanuel C. Opara	19
11	New Alginate Microcapsule System for Angiogenic Protein Delivery and Immunoisolation of Islets for Transplantation in the Rat Omentum Pouch 2011 ·Transplantation Proceedings ·John P. McQuilling, (unknown), (unknown), Rajesh Pareta, Omaditya Khanna, Bin Jiang, Eric M. Brey, Alan C. Farney, Emmanuel C. Opara	49
12	Oxidative Stress in Nonalcoholic Fatty Liver Disease: Pathogenesis and Antioxidant Therapies 2004 ·Journal of Investigative Medicine ·Samer Gawrieh, Emmanuel C. Opara, Timothy R. Koch	36
13	Total antioxidant capacity following extrinsic denervation and small intestinal transplantation in the rat 2003 ·Neuroscience Letters ·Timothy R. Koch, Gordon L. Telford, (unknown), William F. Kendall, Emmanuel C. Opara	2
14	Targeted Deletion of the PRL Receptor: Effects on Islet Development, Insulin Production, and Glucose Tolerance 2002 ·Endocrinology ·Michael Freemark, Isabelle Avril, Don Fleenor, P Driscoll, Ann Petro, Emmanuel C. Opara, (unknown), Jon Oden, (unknown), Nadine Binart, Bernadette Bréant, Paul A. Kelly	197
15	Insulin resistance and fat patterning with aging: Relationship to metabolic risk factors for cardiovascular disease 1998 ·Metabolism ·William T. Cefalu, (unknown), Audrey D. Bell–Farrow, James G. Terry, (unknown), Emmanuel C. Opara, Timothy Morgan, William H. Hinson, John R. Crouse	30
16	Glutathione levels in chronic inflammatory disorders of the human colon 1997 ·Nutrition Research ·(unknown), (unknown), J. Steven Burdick, Steven J. Stryker, Gordon L. Telford, Mary F. Otterson, Emmanuel C. Opara, Timothy R. Koch	25
17	Decreased vasoactive intestinal peptide levels and glutathione depletion in acquired megacolon 1996 ·Digestive Diseases and Sciences ·Timothy R. Koch, (unknown), Mary F. Otterson, Gordon L. Telford, Steven J. Stryker, (unknown), Emmanuel C. Opara	15
18	Dietary regulation of glucose-dependent insulinotropic peptide (GIP) gene expression in rat small intestine 1995 ·Comparative Biochemistry and Physiology Part C Pharmacology Toxicology and Endocrinology ·Yoshifumi Higashimoto, Emmanuel C. Opara, Rodger A. Liddle	19
19	Impaired second phase insulin response of diabetes-prone C57BL/6J mouse islets 1995 ·Physiology & Behavior ·(unknown), (unknown), Emmanuel C. Opara, Cynthia M. Kuhn, Mark N. Feinglos, Richard S. Surwit	24
20	Glycogen synthase: a putative locus for diet-induced hyperglycemia. 1994 ·Journal of Clinical Investigation ·Michael F. Seldin, D. M. Mott, Dattatray Bhat, (unknown), Cynthia M. Kuhn, Stephen F. Kingsmore, Clifton Bogardus, Emmanuel C. Opara, Mark N. Feinglos, Richard S. Surwit	29

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