A. Hamann

9.2k citations

94 papers · 6.1k indexed · 3 hit papers · h-index 33

Impact in

Endocrine and Autonomic Systems top 0.2%
- Regulation of Appetite and Obesity
Physiology top 0.5%
- Adipose Tissue and Metabolism
- Diet and metabolism studies

Papers in

Endocrinology, Diabetes and Metabolism 31
- Diabetes Treatment and Management 18
Physiology 46
- Adipose Tissue and Metabolism 30
- Diet and metabolism studies 15

Co-authors: Jeffrey S. Flier Bradford B. Lowell Robert Frederich Stephen Anderson Leslie P. Kozak Joel Lawitts Bert B. Boyer Jean Himms‐Hagen
Journals: Experimental and Clinical Endocrinology & Diabetes (10 papers)Hormone and Metabolic Research (6 papers)Diabetes (5 papers)Diabetes Care (5 papers)Diabetes Obesity and Metabolism (4 papers)
Partner nations: Germany United States France

In The Last Decade

A. Hamann

89 papers receiving 5.9k citations

Hit Papers

align trajectories log scale

Regulation of PPAR gamma gene expression by nutrition and obesity in rodents. 1996 · 558 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

1996 Journal of Clinical Investigation
1995 Nature Medicine
1993 Nature

Peers

Countries citing papers authored by A. Hamann

Since Specialization

Citations

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

Fields of papers citing papers by A. Hamann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside A. Hamann, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with A. Hamann Line = papers co-authored together A. Hamann links everyone, so they are left out of the graph.

All Works

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

20 of 20 papers shown

#	Work
1	Praxisempfehlungen DDG/DGIM : Therapie des Typ-2-Diabetes Diabetologie und Stoffwechsel ·R. Landgraf, Monika Kellerer, Željka Štefša, Baptist Gallwitz, A. Hamann, Hans‐Georg Joost, H. H. Klein, Zhiqiang Jing, Michael A. Nauck, Tsholofelo J. Modise, Stefanie Schreiber, Erhard Siegel, S. Matthäei	2013	6
2	Regulation of energy balance by leptin Experimental and Clinical Endocrinology & Diabetes ·A. Hamann, S. Matthäei	2009	77
3	External Electric Muscle Stimulation Improves Burning Sensations and Sleeping Disturbances in Patients with Type 2 Diabetes and Symptomatic Neuropathy Pain Medicine ·Per M. Humpert, Michael Morcos, Dimitrios Oikonomou, ジェ-ムズマクラッチ-, A. Hamann, Angelika Bierhaus, Tobias Schilling, Peter P. Nawroth	2009	19
4	Functional Polymorphisms of UCP2 and UCP3 Are Associated With a Reduced Prevalence of Diabetic Neuropathy in Patients With Type 1 Diabetes Diabetes Care ·Gottfried Rudofsky, Д.Н. Платонов, Andreas Schlotterer, 恭子狗飼, Fowzan S Alkuraya, Yaiza Trueba, Berend Isermann, Per M. Humpert, Michael Morcos, Angelika Bierhaus, Peter P. Nawroth, A. Hamann	2006	53
5	Efficacy and safety of topiramate in combination with metformin in the treatment of obese subjects with type 2 diabetes: a randomized, double-blind, placebo-controlled study International Journal of Obesity ·(unknown), Hermann Toplak, A. Hamann, Rema Moore, E. A. Masson, M Górska, Frank Vercruysse, Xiang Sun, M. Fitchet	2006	60
6	Effect of metformin plus roziglitazone compared with metformin alone on glycaemic control in well‐controlled Type 2 diabetes Diabetic Medicine ·Murray Stewart, Deborah T. Cirkel, Kristian Furuseth, Jill Donaldson, N. Biswas, Türkü Özlüm Çelik, C. Phenekos, A. Hamann	2006	29
7	[Oral diabetes treatment. Which substance is indicated at which time?]. Der Internist ·A. Hamann, Michael Morcos, Peter P. Nawroth	2004	2
8	No association of the 94T/G polymorphism in the adiponectin gene with diabetic complications Diabetes Obesity and Metabolism ·Gottfried Rudofsky, Fowzan S Alkuraya, Andrea Schlotterer, Maximilian von Eynatten, Péter Reismann, Yves Citton, Ingo Grafe, Michael Morcos, Peter P. Nawroth, Angelika Bierhaus, A. Hamann	2004	14
9	Tissue and serum levofloxacin concentrations in diabetic foot infection patients Journal of Antimicrobial Chemotherapy ·K. Oberdorfer, Stefanie Swoboda, A. Hamann, Pelin Sıkı, Klaus Kusterer, Bert‐Jan H. van den Born, Torsten Hoppe‐Tichy, Chunyu Yan, Heike von Baum	2004	21
10	Orale Diabetestherapie Der Internist ·A. Hamann, Michael Morcos, Peter P. Nawroth	2004	1
11	Reduction of Postprandial Hyperglycemia in Patients with Type 2 Diabetes Reduces NF-κB Activation in PBMCs Hormone and Metabolic Research ·Gottfried Rudofsky, Péter Reismann, Stephan Schiekofer, Aidha Salsa Billa, Dagfinn Aarvaag, Per M. Humpert, Berend Isermann, Manuel Llanos Zevallos, Thanh-Phuong Thai, Samuel V. Lichtenstein, В.Ю. Кордабовский, A. Hamann, PP Nawroth, Angelika Bierhaus	2004	48
12	Genetics of obesity and obesity-related hypertension Seminars in Nephrology ·A. Hamann, Arya M. Sharma	2002	5
13	Identification of a deletion variant in the gene encoding the human alpha(2A)-adrenergic receptor European Journal of Endocrinology ·A. Hamann, Assimina V. Dremetsika, Yves Citton, Sreya Moitro, Douglas C. Buffone, Heike Münzberg, Anke Hinney, Hermann Mayer, Wolfgang Siegfried, Johannes Hebebrand, H. Greten, Petra Algenstaedt, SK	2001	10
14	Missense variants in the human peroxisome proliferator-activated receptor-gamma2 gene in lean and obese subjects European Journal of Endocrinology ·A. Hamann, Heike Münzberg, Sreya Moitro, Kristijana Barić, Anke Hinney, Hermann Mayer, Wolfgang Siegfried, Johannes Hebebrand, H. Greten	1999	46
15	Analysis of the uncoupling protein-1 (UCP1) gene in obese and lean subjects: Identification of four amino acid variants International Journal of Obesity ·A. Hamann, Yves Citton, Kristijana Barić, Heike Münzberg, Anke Hinney, Hermann Mayer, Wolfgang Siegfried, Daniel Ricquier, H. Greten, Johannes Hebebrand, S. Matthäei	1998	31
16	Decreased brown fat markedly enhances susceptibility to diet-induced obesity, diabetes, and hyperlipidemia Endocrinology ·A. Hamann	1996	38
17	Leptin levels reflect body lipid content in mice: Evidence for diet-induced resistance to leptin action Nature Medicine ·Robert Frederich, A. Hamann, Stephen Anderson, Injun Ohk, Bradford B. Lowell, Jeffrey S. Flier Hit paper breakdown →	1995	1368
18	Genetic Variability in the TNF-α Promoter Is Not Associated with Type II Diabetes Mellitus (NIDDM) Biochemical and Biophysical Research Communications ·A. Hamann, C. S. Mantzoros, Antonio Vidal‐Puig, Jeffrey S. Flier	1995	123
19	Expression of ob mRNA and its encoded protein in rodents. Impact of nutrition and obesity. Journal of Clinical Investigation ·Robert Frederich, Injun Ohk, A. Hamann, P. Nebot, Barbara B. Kahn, Bradford B. Lowell, Jeffrey S. Flier	1995	483
20	Development of morbid obesity in transgenic mice following the genetic ablation of brown adipose tissue Clinical research ·Bradford B. Lowell, Vedrana S. Susulic, A. Hamann, Joel Lawitts, Bert B. Boyer, Leslie P. Kozak, J S Flier	1993	8

About A. Hamann

A. Hamann is a scholar working on Endocrinology, Diabetes and Metabolism, Physiology, Endocrine and Autonomic Systems, Clinical Biochemistry and Pharmacology, having authored 94 papers that have together received 6.1k indexed citations. Recurring topics across this work include Adipose Tissue and Metabolism (30 papers), Metabolism, Diabetes, and Cancer (19 papers), Diabetes Treatment and Management (18 papers), Diet and metabolism studies (15 papers), Adipokines, Inflammation, and Metabolic Diseases (11 papers), Pharmacology and Obesity Treatment (8 papers), Peroxisome Proliferator-Activated Receptors (8 papers) and Regulation of Appetite and Obesity (8 papers). The work is most often cited by research in Endocrine and Autonomic Systems (2.0k citations), Physiology (3.0k citations), Nutrition and Dietetics (1.1k citations), Epidemiology (2.1k citations) and Endocrinology, Diabetes and Metabolism (945 citations). A. Hamann has collaborated with scholars based in Germany, United States and France. Frequent co-authors include Jeffrey S. Flier, Bradford B. Lowell, Robert Frederich, Stephen Anderson, Leslie P. Kozak, Joel Lawitts, Bert B. Boyer, Jean Himms‐Hagen, Antonio Vidal‐Puig and Peter P. Nawroth. Their work appears in journals such as Experimental and Clinical Endocrinology & Diabetes, Hormone and Metabolic Research, Diabetes, Diabetes Care and Diabetes Obesity and Metabolism.

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