I. Byrjalsen

7.2k total citations · 2 hit papers
143 papers, 5.6k citations indexed

About

I. Byrjalsen is a scholar working on Rheumatology, Molecular Biology and Pharmacology. According to data from OpenAlex, I. Byrjalsen has authored 143 papers receiving a total of 5.6k indexed citations (citations by other indexed papers that have themselves been cited), including 57 papers in Rheumatology, 30 papers in Molecular Biology and 28 papers in Pharmacology. Recurrent topics in I. Byrjalsen's work include Osteoarthritis Treatment and Mechanisms (43 papers), Inflammatory mediators and NSAID effects (23 papers) and Rheumatoid Arthritis Research and Therapies (20 papers). I. Byrjalsen is often cited by papers focused on Osteoarthritis Treatment and Mechanisms (43 papers), Inflammatory mediators and NSAID effects (23 papers) and Rheumatoid Arthritis Research and Therapies (20 papers). I. Byrjalsen collaborates with scholars based in Denmark, United States and Germany. I. Byrjalsen's co-authors include Claus Christiansen, M.A. Karsdal, Peter Alexandersen, Anne‐Christine Bay‐Jensen, Diana Julie Leeming, Per Qvist, Kim Henriksen, Asger Reinstrup Bihlet, Jens Haarbo and Pierre D. Delmas and has published in prestigious journals such as JAMA, Journal of Biological Chemistry and Circulation.

In The Last Decade

I. Byrjalsen

141 papers receiving 5.4k 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.

The Collagenolytic Activity of Cathepsin K Is Unique among Mammalian Proteinases

1998 518 citations I. Byrjalsen, Mercedes Ferreras et al. profile →
Effect of Intra-Articular Sprifermin vs Placebo on Femorotibial Joint Cartilage Thickness in Patients With Osteoarthritis

2019 242 citations Marc C. Hochberg, Hans Guehring et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
I. Byrjalsen Denmark	42	1.7k	1.7k	1.2k	928	870	143	5.6k
Yosuke Okada Japan	38	2.0k 1.2×	557 0.3×	1.1k 0.9×	440 0.5×	1.1k 1.3×	235	5.0k
Marina Stolina United States	41	3.3k 1.9×	1.3k 0.7×	2.2k 1.8×	1.6k 1.7×	281 0.3×	74	6.2k
Farhad Parhami United States	37	2.4k 1.4×	470 0.3×	987 0.8×	898 1.0×	415 0.5×	60	6.1k
Atsushi Shioi Japan	36	1.5k 0.8×	754 0.4×	728 0.6×	578 0.6×	552 0.6×	97	5.3k
Luigi Gennari Italy	46	1.8k 1.0×	649 0.4×	1.9k 1.6×	2.6k 2.8×	1.1k 1.3×	182	5.8k
Paula H. Stern United States	37	1.9k 1.1×	313 0.2×	1.4k 1.2×	772 0.8×	664 0.8×	163	4.4k
Hou‐De Zhou China	35	3.2k 1.8×	303 0.2×	714 0.6×	586 0.6×	429 0.5×	153	5.4k
Hollis A. Simmons United States	33	2.0k 1.1×	412 0.2×	1.6k 1.4×	1.0k 1.1×	555 0.6×	52	4.0k
Toshimi Michigami Japan	41	1.8k 1.0×	950 0.6×	1.4k 1.1×	511 0.6×	783 0.9×	152	4.6k
Sean Morony United States	27	6.4k 3.7×	1.2k 0.7×	5.0k 4.2×	2.3k 2.5×	263 0.3×	40	9.0k

Countries citing papers authored by I. Byrjalsen

Since Specialization

Citations

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

Fields of papers citing papers by I. Byrjalsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of I. Byrjalsen

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

Bihlet, Asger Reinstrup, I. Byrjalsen, J.R. Andersen, et al.. (2024). The efficacy and safety of a fixed-dose combination of apocynin and paeonol, APPA, in symptomatic knee OA: A double-blind, randomized, placebo-controlled, clinical trial. Osteoarthritis and Cartilage. 32(7). 952–962. 7 indexed citations

Andersen, J.R., et al.. (2022). Impact of monitoring approaches on data quality in clinical trials. British Journal of Clinical Pharmacology. 89(6). 1756–1766. 3 indexed citations

Luo, Yunyun, Jonathan Samuels, Svetlana Krasnokutsky, et al.. (2021). A low cartilage formation and repair endotype predicts radiographic progression of symptomatic knee osteoarthritis. Journal of Orthopaedics and Traumatology. 22(1). 10–10. 31 indexed citations

Eckstein, F., Marc C. Hochberg, Hans Guehring, et al.. (2020). Long-term efficacy and safety of intra-articular sprifermin in patients with knee osteoarthritis: results from the 5-year forward study. Osteoarthritis and Cartilage. 28. S77–S78. 3 indexed citations

Byrjalsen, I., et al.. (2019). SAT0634 CO-MORBIDITIES ASSOCIATED WITH DISCORDANCE BETWEEN STRUCTURAL SEVERITY AND PAIN IN OSTEOARTHRITIS: IMPLICATIONS FOR CLINICAL TRIAL DESIGN IN OA – A POST-HOC ANALYSIS OF DATA FROM TWO RANDOMIZED CONTROLLED TRIALS. Annals of the Rheumatic Diseases. 78. 1414–1415. 1 indexed citations

Bay‐Jensen, Anne‐Christine, M.A. Karsdal, I. Byrjalsen, et al.. (2019). Biomarkers of bone and cartilage turnover CTX-I and CTX-II predict total joint replacements in osteoarthritis. Osteoarthritis and Cartilage. 27. S31–S32. 6 indexed citations

Bihlet, Asger Reinstrup, I. Byrjalsen, J.R. Andersen, et al.. (2019). Elevated serum biomarkers of inflammatory turnover of collagen types III and VI predict rapid cartilage loss. Osteoarthritis and Cartilage. 27. S104–S105. 3 indexed citations

Sand, Jannie Marie Bülow, Diana Julie Leeming, I. Byrjalsen, et al.. (2016). High levels of biomarkers of collagen remodeling are associated with increased mortality in COPD – results from the ECLIPSE study. Respiratory Research. 17(1). 125–125. 48 indexed citations

Karsdal, M.A., Erik B. Dam, I. Byrjalsen, et al.. (2015). MRI analysis from two phase 3 randomized clinical trials; treatment of symptomatic knee osteoarthritis with oral salmon calcitonin. Osteoarthritis and Cartilage. 23. A394–A395. 1 indexed citations

10.

Alexandersen, Peter, I. Byrjalsen, Anne‐Christine Bay‐Jensen, et al.. (2014). Association between joint space width, Kellgren-Lawrence score, pain and progression in osteoarthritis subjects from two phase III studies – a clinical study reference database. Osteoarthritis and Cartilage. 22. S197–S197.

11.

Bay‐Jensen, Anne‐Christine, Stephanie Wichuk, I. Byrjalsen, M.A. Karsdal, & Walter P. Maksymowych. (2012). Two novel diagnostic biomarkers of cartilage degradation and connective tissue inflammation are predictive of radiographic disease progression. Osteoarthritis and Cartilage. 20. S90–S90. 1 indexed citations

12.

Cauchi, Stéphane, I. Byrjalsen, Emmanuelle Durand, M.A. Karsdal, & Philippe Froguel. (2009). PLCL1 rs7595412 variation is not associated with hip bone size variation in postmenopausal Danish women. BMC Medical Genetics. 10(1). 145–145. 2 indexed citations

13.

Li, Bo, I. Byrjalsen, Paul Glendenning, et al.. (2009). Selective monitoring of vitamin D2 and D3 supplementation with a highly specific 25-hydroxyvitamin D3 immunoassay with negligible cross-reactivity to 25-hydroxyvitamin D2. Clinica Chimica Acta. 404(2). 144–148. 9 indexed citations

14.

Olsen, Ann‐Karin, B.C. Søndergaard, I. Byrjalsen, et al.. (2006). Anabolic and catabolic function of chondrocyte ex vivo is reflected by the metabolic processing of type II collagen. Osteoarthritis and Cartilage. 15(3). 335–342. 39 indexed citations

15.

Peng, Hou, Tove Kirkegaard, Thomas Levin Andersen, et al.. (2003). Matrix metalloproteinase-12 (MMP-12) in osteoclasts: new lesson on the involvement of MMPs in bone resorption. Bone. 34(1). 37–47. 84 indexed citations

16.

Bjarnason, Nina Hannover, Jens Haarbo, I. Byrjalsen, et al.. (2001). Raloxifene and estrogen reduces progression of advanced atherosclerosis — a study in ovariectomized, cholesterol-fed rabbits. Atherosclerosis. 154(1). 97–102. 28 indexed citations

17.

Alexandersen, Peter, I. Byrjalsen, & Claus Christiansen. (2000). Piperazine oestrone sulphate and interrupted norethisterone in postmenopausal women: effects on bone mass, lipoprotein metabolism, climacteric symptoms, and adverse effects. BJOG An International Journal of Obstetrics & Gynaecology. 107(3). 356–364. 22 indexed citations

18.

Byrjalsen, I., et al.. (2000). Piperazine oestrone sulphate and interrupted norethisterone: effects on the postmenopausal endometrium. BJOG An International Journal of Obstetrics & Gynaecology. 107(3). 347–355. 7 indexed citations

19.

Byrjalsen, I., et al.. (1995). Human endometrial proteins with cyclic changes in the expression during the normal menstrual cycle: characterization by protein sequence analysis. Human Reproduction. 10(10). 2760–2766. 23 indexed citations

20.

Franck, Carsten & I. Byrjalsen. (1988). A Simple and Sensitive Chromogen Assay for the Measurement of Elastase-Type Enzyme Activity in Human Plasma. Biological Chemistry Hoppe-Seyler. 369(2). 677–682. 6 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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