Robert Ritzel

8.2k total citations · 2 hit papers
57 papers, 6.5k citations indexed

About

Robert Ritzel is a scholar working on Endocrinology, Diabetes and Metabolism, Surgery and Genetics. According to data from OpenAlex, Robert Ritzel has authored 57 papers receiving a total of 6.5k indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Endocrinology, Diabetes and Metabolism, 28 papers in Surgery and 16 papers in Genetics. Recurrent topics in Robert Ritzel's work include Diabetes Management and Research (34 papers), Diabetes Treatment and Management (28 papers) and Pancreatic function and diabetes (25 papers). Robert Ritzel is often cited by papers focused on Diabetes Management and Research (34 papers), Diabetes Treatment and Management (28 papers) and Pancreatic function and diabetes (25 papers). Robert Ritzel collaborates with scholars based in Germany, United States and France. Robert Ritzel's co-authors include Peter C. Butler, Alexandra E. Butler, Robert A. Rizza, Susan Bonner‐Weir, Juliette Janson, Michael A. Nauck, Jens J. Holst, Wolff Schmiegel, Johannes D. Veldhuis and Cathrine Ørskov and has published in prestigious journals such as Proceedings of the National Academy of Sciences, The Journal of Clinical Endocrinology & Metabolism and Diabetes Care.

In The Last Decade

Robert Ritzel

53 papers receiving 6.3k 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.

β-Cell Deficit and Increased β-Cell Apoptosis in Humans With Type 2 Diabetes

2003 3.2k citations Robert Ritzel, Peter C. Butler et al. Diabetes profile →
Glucagon-like peptide 1 inhibition of gastric emptying outweighs its insulinotropic effects in healthy humans

1997 678 citations Michael A. Nauck, Jens J. Holst et al. American Journal of Physiology-Endocrinology and Metabolism profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Robert Ritzel Germany	25	4.2k	3.9k	2.2k	1.8k	915	57	6.5k
R Lupi Italy	37	3.9k 0.9×	2.3k 0.6×	2.6k 1.2×	1.8k 1.0×	965 1.1×	85	6.3k
Takeshi Miyatsuka Japan	36	2.4k 0.6×	1.4k 0.4×	1.7k 0.8×	1.3k 0.7×	660 0.7×	100	4.6k
Nathalie Vionnet France	32	2.4k 0.6×	1.4k 0.4×	2.4k 1.1×	1.9k 1.0×	922 1.0×	73	4.8k
Dan Kawamori Japan	32	1.9k 0.5×	1.3k 0.3×	1.9k 0.8×	825 0.4×	1.0k 1.1×	75	4.5k
Riccardo Perfetti United States	32	2.7k 0.6×	3.0k 0.8×	1.5k 0.7×	845 0.5×	320 0.3×	96	4.3k
Catherine Fiévet France	46	2.7k 0.6×	2.3k 0.6×	3.3k 1.5×	521 0.3×	1.3k 1.4×	117	7.4k
Baptist Gallwitz Germany	39	2.2k 0.5×	4.2k 1.1×	1.9k 0.9×	429 0.2×	677 0.7×	129	5.7k
Murielle M. Véniant United States	44	1.4k 0.3×	1.5k 0.4×	3.7k 1.7×	423 0.2×	1.2k 1.3×	95	6.5k
Anath Shalev United States	36	1.6k 0.4×	817 0.2×	2.7k 1.2×	752 0.4×	826 0.9×	76	4.7k
Peter Bergsten Sweden	34	2.0k 0.5×	1.2k 0.3×	1.5k 0.7×	671 0.4×	611 0.7×	141	3.5k

Countries citing papers authored by Robert Ritzel

Since Specialization

Citations

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

Fields of papers citing papers by Robert Ritzel

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Robert Ritzel

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

Ritzel, Robert, Sujoy Ghosh, Rıfat Emral, et al.. (2023). Comparative efficacy and safety of Gla‐300 versus IDegAsp in insulin‐naïve people with type 2 diabetes mellitus uncontrolled on oral anti‐diabetics. Diabetes Obesity and Metabolism. 25(9). 2495–2504. 3 indexed citations

Munshi, Medha, et al.. (2023). Advancing type 2 diabetes therapy with iGlarLixi in older people: Pooled analysis of four randomized controlled trials. Diabetes Obesity and Metabolism. 26(3). 851–859. 1 indexed citations

Munshi, Medha, Robert Ritzel, Irene Hramiak, et al.. (2023). Advancing Type 2 Diabetes Therapy with iGlarLixi in Older People: Pooled Analysis of Four Randomized Controlled Trials. Metabolism. 142. 155429–155429. 1 indexed citations

Cheng, Alice, Stewart B. Harris, Francesco Giorgino, et al.. (2019). Similar glycaemic control and less hypoglycaemia during active titration after insulin initiation with glargine 300 units/mL and degludec 100 units/mL: A subanalysis of the BRIGHT study. Diabetes Obesity and Metabolism. 22(3). 346–354. 5 indexed citations

Yale, J.‐F., Vanita R. Aroda, B Charbonnel, et al.. (2018). Glycaemic control and hypoglycaemia risk with insulin glargine 300 U/mL versus glargine 100 U/mL: A patient-level meta-analysis examining older and younger adults with type 2 diabetes. Diabetes & Metabolism. 46(2). 110–118. 19 indexed citations

Roussel, Ronan, et al.. (2018). Clinical perspectives from the BEGIN and EDITION programmes: Trial-level meta-analyses outcomes with either degludec or glargine 300 U/mL vs glargine 100 U/mL in T2DM. Diabetes & Metabolism. 44(5). 402–409. 30 indexed citations

Ritzel, Robert, et al.. (2015). Patient‐level meta‐analysis of the EDITION 1, 2 and 3 studies: glycaemic control and hypoglycaemia with new insulin glargine 300 U/ml versus glargine 100 U/ml in people with type 2 diabetes. Diabetes Obesity and Metabolism. 17(9). 859–867. 173 indexed citations

Nöldge, G, Marc‐An dré Weber, Robert Ritzel, et al.. (2009). Invasive Diagnostik bei Insulinomen des Pankreas. Der Radiologe. 49(3). 224–232. 4 indexed citations

Nawroth, PP, et al.. (2009). Prolonged Culture of Human Islets Induces ER Stress. Experimental and Clinical Endocrinology & Diabetes. 118(2). 81–86. 5 indexed citations

10.

Ritzel, Robert, Johannes D. Veldhuis, & Peter C. Butler. (2005). The mass, but not the frequency, of insulin secretory bursts in isolated human islets is entrained by oscillatory glucose exposure. American Journal of Physiology-Endocrinology and Metabolism. 290(4). E750–E756. 18 indexed citations

11.

Hücking, Katrin, Christian Pox, Robert Ritzel, et al.. (2005). α‐Glucosidase inhibition (acarbose) fails to enhance secretion of glucagon‐like peptide 1 (7–36 amide) and to delay gastric emptying in Type 2 diabetic patients. Diabetic Medicine. 22(4). 470–476. 48 indexed citations

12.

Isermann, Berend, Angelika Bierhaus, Gottfried Rudofsky, et al.. (2004). AGE-RAGE: eine Hypothese oder ein Mechanismus?. Herz. 29(5). 504–9. 10 indexed citations

13.

Ritzel, Robert, Berend Isermann, Tobias Schilling, et al.. (2004). Diagnosis and Localization of Insulinoma after Negative Laparotomy by Hyperinsulinemic, Hypoglycemic Clamp and Intra-Aterial Calcium Stimulation. The Review of Diabetic Studies. 1(1). 42–42. 5 indexed citations

14.

Pox, Christian, Robert Ritzel, M Büsing, et al.. (2003). Combined Pancreas and Kidney Transplantation in a Lean Type 2 Diabetic Patient. Effects on Insulin Secretion and Sensitivity. Experimental and Clinical Endocrinology & Diabetes. 110(8). 420–424. 21 indexed citations

15.

Ritzel, Robert, Johannes D. Veldhuis, & Peter C. Butler. (2003). Glucose Stimulates Pulsatile Insulin Secretion from Human Pancreatic Islets by Increasing Secretory Burst Mass: Dose-Response Relationships. The Journal of Clinical Endocrinology & Metabolism. 88(2). 742–747. 46 indexed citations

16.

Ritzel, Robert & Peter C. Butler. (2003). Replication Increases β-Cell Vulnerability to Human Islet Amyloid Polypeptide-Induced Apoptosis. Diabetes. 52(7). 1701–1708. 90 indexed citations

17.

Song, Soon H, Lise Kjems, Robert Ritzel, et al.. (2002). Pulsatile Insulin Secretion by Human Pancreatic Islets. The Journal of Clinical Endocrinology & Metabolism. 87(1). 213–221. 44 indexed citations

18.

Nauck, Michael A., Markus M. Heimesaat, Jens J. Holst, et al.. (2002). Effects of Glucagon-Like Peptide 1 on Counterregulatory Hormone Responses, Cognitive Functions, and Insulin Secretion during Hyperinsulinemic, Stepped Hypoglycemic Clamp Experiments in Healthy Volunteers. The Journal of Clinical Endocrinology & Metabolism. 87(3). 1239–1246. 471 indexed citations

19.

Ritzel, Robert, C. �rskov, Jens J. Holst, & Michael A. Nauck. (1995). Pharmacokinetic, insulinotropic, and glucagonostatic properties of GLP-1 [7?36 amide] after subcutaneous injection in healthy volunteers. Dose-response-relationships. Diabetologia. 38(6). 720–725. 177 indexed citations

20.

Ritzel, Robert, et al.. (1994). Sindrome da arteria mesenterica superior. Revista do Colégio Brasileiro de Cirurgiões. 21(4). 225–226. 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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