Heiner Appel

4.1k total citations
47 papers, 3.1k citations indexed

About

Heiner Appel is a scholar working on Rheumatology, Immunology and Orthopedics and Sports Medicine. According to data from OpenAlex, Heiner Appel has authored 47 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Rheumatology, 19 papers in Immunology and 11 papers in Orthopedics and Sports Medicine. Recurrent topics in Heiner Appel's work include Spondyloarthritis Studies and Treatments (28 papers), Rheumatoid Arthritis Research and Therapies (19 papers) and Bone and Joint Diseases (11 papers). Heiner Appel is often cited by papers focused on Spondyloarthritis Studies and Treatments (28 papers), Rheumatoid Arthritis Research and Therapies (19 papers) and Bone and Joint Diseases (11 papers). Heiner Appel collaborates with scholars based in Germany, United States and United Kingdom. Heiner Appel's co-authors include Joachim Sieper, Martín Rudwaleit, Axel Hempfing, Christoph Loddenkemper, Kai W. Wucherpfennig, R. Maier, Peihua Wu, Laurent Gauthier, Jürgen Braun and Andreas Thiel and has published in prestigious journals such as Journal of Biological Chemistry, Journal of Clinical Investigation and Journal of Clinical Oncology.

In The Last Decade

Heiner Appel

47 papers receiving 3.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Heiner Appel Germany 30 1.9k 1.6k 604 495 453 47 3.1k
U. Eggens Germany 17 2.2k 1.1× 1.0k 0.6× 634 1.0× 221 0.4× 297 0.7× 28 2.7k
Henner Morbach Germany 30 1.4k 0.7× 947 0.6× 256 0.4× 557 1.1× 76 0.2× 82 2.8k
Y Niho Japan 21 351 0.2× 879 0.6× 672 1.1× 426 0.9× 83 0.2× 74 2.1k
Tineke Cantaert Netherlands 32 1.2k 0.6× 1.2k 0.7× 253 0.4× 388 0.8× 32 0.1× 81 2.8k
Koen Vos Netherlands 24 1.7k 0.9× 731 0.5× 469 0.8× 238 0.5× 30 0.1× 37 2.9k
H. H. Peter Germany 26 536 0.3× 1.4k 0.9× 291 0.5× 315 0.6× 48 0.1× 64 2.3k
David A. Fulcher Australia 23 360 0.2× 2.3k 1.4× 112 0.2× 315 0.6× 48 0.1× 57 3.1k
O. J. Mellbye Norway 23 652 0.3× 948 0.6× 266 0.4× 234 0.5× 24 0.1× 96 2.0k
Eileen R. Roux Canada 11 273 0.1× 2.8k 1.8× 368 0.6× 2.2k 4.4× 300 0.7× 15 4.8k
Susanna Lang Austria 26 619 0.3× 215 0.1× 226 0.4× 426 0.9× 69 0.2× 68 2.2k

Countries citing papers authored by Heiner Appel

Since Specialization
Citations

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

Fields of papers citing papers by Heiner Appel

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Heiner Appel

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

All Works

20 of 20 papers shown
1.
Hölzer, Bodo, Heiner Appel, Nina Babel, et al.. (2020). Impact of renal disease and comorbidities on mortality in hemodialysis patients with COVID-19: a multicenter experience from Germany. Journal of Nephrology. 33(5). 871–874. 19 indexed citations
2.
Sieper, Joachim, R. Maier, Uwe Schlichting, et al.. (2015). Cartilage in facet joints of patients with ankylosing spondylitis (AS) shows signs of cartilage degeneration rather than chondrocyte hypertrophy: implications for joint remodeling in AS. Arthritis Research & Therapy. 17(1). 170–170. 29 indexed citations
3.
Poddubnyy, Denis, Kristina Conrad, Hildrun Haibel, et al.. (2013). Elevated serum level of the vascular endothelial growth factor predicts radiographic spinal progression in patients with axial spondyloarthritis. Annals of the Rheumatic Diseases. 73(12). 2137–2143. 56 indexed citations
4.
Morán, E, Chin Teck Ng, T. Saber, et al.. (2011). IL-17A Expression Is Localised to Both Mononuclear and Polymorphonuclear Synovial Cell Infiltrates. PLoS ONE. 6(8). e24048–e24048. 52 indexed citations
5.
Appel, Heiner, Peihua Wu, Claudia Kedor, et al.. (2011). Synovial and Peripheral Blood CD4+FoxP3+ T Cells in Spondyloarthritis. The Journal of Rheumatology. 38(11). 2445–2451. 43 indexed citations
6.
7.
Appel, Heiner, R. Maier, Christoph Loddenkemper, et al.. (2010). Immunohistochemical Analysis of Osteoblasts in Zygapophyseal Joints of Patients with Ankylosing Spondylitis Reveal Repair Mechanisms Similar to Osteoarthritis. The Journal of Rheumatology. 37(4). 823–828. 38 indexed citations
8.
Kuhne, Maren, Ulrike Erben, Gundula Schulze‐Tanzil, et al.. (2009). HLA–B27–restricted antigen presentation by human chondrocytes to CD8+ T cells: Potential contribution to local immunopathologic processes in ankylosing spondylitis. Arthritis & Rheumatism. 60(6). 1635–1646. 18 indexed citations
9.
10.
Sieper, Joachim, Heiner Appel, Jürgen Braun, & Martín Rudwaleit. (2008). Critical appraisal of assessment of structural damage in ankylosing spondylitis: Implications for treatment outcomes. Arthritis & Rheumatism. 58(3). 649–656. 156 indexed citations
11.
Appel, Heiner, Maren Kuhne, J. Zacher, et al.. (2006). Immunohistochemical analysis of hip arthritis in ankylosing spondylitis: Evaluation of the bone–cartilage interface and subchondral bone marrow. Arthritis & Rheumatism. 54(6). 1805–1813. 115 indexed citations
12.
Appel, Heiner, Maren Kuhne, Harald Ebhardt, et al.. (2006). Immunohistologic analysis of zygapophyseal joints in patients with ankylosing spondylitis. Arthritis & Rheumatism. 54(9). 2845–2851. 134 indexed citations
13.
O’Connor, Kevin C., Heiner Appel, Lisa Bregoli, et al.. (2005). Antibodies from Inflamed Central Nervous System Tissue Recognize Myelin Oligodendrocyte Glycoprotein. The Journal of Immunology. 175(3). 1974–1982. 132 indexed citations
14.
Atagündüz, Pamir, Heiner Appel, Wolfgang Kuon, et al.. (2005). HLA–B27–restricted CD8+ T cell response to cartilage‐derived self peptides in ankylosing spondylitis. Arthritis & Rheumatism. 52(3). 892–901. 80 indexed citations
15.
Kuon, Wolfgang, Maren Kuhne, Dirk H. Busch, et al.. (2004). Identification of Novel Human Aggrecan T Cell Epitopes in HLA-B27 Transgenic Mice Associated with Spondyloarthropathy. The Journal of Immunology. 173(8). 4859–4866. 30 indexed citations
16.
Appel, Heiner, Lucia Neure, Maren Kuhne, et al.. (2004). An elevated level of IL-10- and TGF?-secreting T cells, B cells and macrophages in the synovial membrane of patients with reactive arthritis compared to rheumatoid arthritis. Clinical Rheumatology. 23(5). 435–440. 27 indexed citations
17.
Day, Cheryl L., Nilufer P. Seth, Michaela Lucas, et al.. (2003). Ex vivo analysis of human memory CD4 T cells specific for hepatitis C virus using MHC class II tetramers. Journal of Clinical Investigation. 112(6). 831–842. 222 indexed citations
18.
Appel, Heiner, Nilufer P. Seth, Laurent Gauthier, & Kai W. Wucherpfennig. (2001). Anergy Induction by Dimeric TCR Ligands. The Journal of Immunology. 166(8). 5279–5285. 43 indexed citations
19.
Kuon, Wolfgang, Hermann−Georg Holzhütter, Heiner Appel, et al.. (2001). Identification of HLA-B27-Restricted Peptides from the Chlamydia trachomatis Proteome with Possible Relevance to HLA-B27-Associated Diseases. The Journal of Immunology. 167(8). 4738–4746. 97 indexed citations
20.
Rubin, Charles M., Michelle M. Le Beau, Rosemarie Mick, et al.. (1991). Impact of chromosomal translocations on prognosis in childhood acute lymphoblastic leukemia.. Journal of Clinical Oncology. 9(12). 2183–2192. 36 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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