A. Ludwig

24.4k total citations · 1 hit paper
97 papers, 6.3k citations indexed

About

A. Ludwig is a scholar working on Molecular Biology, Cardiology and Cardiovascular Medicine and Cellular and Molecular Neuroscience. According to data from OpenAlex, A. Ludwig has authored 97 papers receiving a total of 6.3k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Molecular Biology, 38 papers in Cardiology and Cardiovascular Medicine and 36 papers in Cellular and Molecular Neuroscience. Recurrent topics in A. Ludwig's work include Ion channel regulation and function (46 papers), Cardiac electrophysiology and arrhythmias (35 papers) and Neuroscience and Neuropharmacology Research (29 papers). A. Ludwig is often cited by papers focused on Ion channel regulation and function (46 papers), Cardiac electrophysiology and arrhythmias (35 papers) and Neuroscience and Neuropharmacology Research (29 papers). A. Ludwig collaborates with scholars based in Germany, United States and United Kingdom. A. Ludwig's co-authors include Franz Hofmann, Martin Biel, Xiangang Zong, Juliane Stieber, Stefan Herrmann, Sven Moosmang, Veit Flockerzi, Roger Hullin, Susanne Feil and Georg Stöckl and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Journal of Biological Chemistry.

In The Last Decade

A. Ludwig

93 papers receiving 6.2k 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.

A family of hyperpolarization-activated mammalian cation channels

1998 769 citations A. Ludwig, Xiangang Zong et al. Nature profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
A. Ludwig Germany	41	4.5k	2.9k	2.5k	515	375	97	6.3k
Toni Schneider Germany	38	3.4k 0.8×	2.5k 0.9×	1.1k 0.4×	375 0.7×	260 0.7×	139	4.6k
Xiangang Zong Germany	25	2.8k 0.6×	2.1k 0.7×	1.3k 0.5×	504 1.0×	291 0.8×	40	4.1k
Edwin S. Levitan United States	46	4.2k 0.9×	3.3k 1.1×	1.1k 0.4×	506 1.0×	322 0.9×	126	6.4k
Lori L. Isom United States	60	8.1k 1.8×	5.9k 2.1×	3.2k 1.3×	1.1k 2.1×	411 1.1×	138	10.6k
Diane Lipscombe United States	33	4.6k 1.0×	3.7k 1.3×	733 0.3×	738 1.4×	397 1.1×	62	5.8k
Christian Kubisch Germany	37	4.6k 1.0×	2.2k 0.8×	1.5k 0.6×	739 1.4×	336 0.9×	144	7.3k
Takahiro Ishii Japan	36	4.9k 1.1×	4.6k 1.6×	956 0.4×	474 0.9×	716 1.9×	121	8.5k
John H. Caldwell United States	34	3.0k 0.7×	2.7k 0.9×	558 0.2×	593 1.2×	430 1.1×	81	4.8k
Laurent Bernheim Switzerland	35	2.6k 0.6×	1.7k 0.6×	562 0.2×	264 0.5×	200 0.5×	63	3.4k
Patrick Delmas France	42	3.8k 0.9×	2.5k 0.9×	759 0.3×	1.6k 3.1×	451 1.2×	97	5.9k

Countries citing papers authored by A. Ludwig

Since Specialization

Citations

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

Fields of papers citing papers by A. Ludwig

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Ludwig

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

Wang, Qinchuan, Jonathan Granger, Oscar E. Reyes Gaido, et al.. (2025). HCN4 channels sense temperature and determine heart rate responses to heat. Nature Communications. 16(1). 2102–2102. 1 indexed citations

Wank, Isabel, Liubov S. Kalinichenko, Christian P. Müller, et al.. (2025). Pharmacological and resting state fMRI reveal Osteocalcin’s effects on mouse brain regions with high Gpr37 and Gpr158 expression. Scientific Reports. 15(1). 10116–10116.

Landstrom, Andrew P., Zhushan Zhang, Katherina M. Alsina, et al.. (2023). Reduction in Junctophilin 2 Expression in Cardiac Nodal Tissue Results in Intracellular Calcium-Driven Increase in Nodal Cell Automaticity. Circulation Arrhythmia and Electrophysiology. 16(2). e010858–e010858. 6 indexed citations

Ludwig, A., et al.. (2023). Junctional Ectopic Tachycardia Caused by Junctophilin-2 Expression Silencing Is Selectively Sensitive to Ryanodine Receptor Blockade. JACC Basic to Translational Science. 8(12). 1577–1588. 3 indexed citations

Sebastian, Sonia, Lee S. Weinstein, A. Ludwig, Patricia B. Munroe, & Andrew Tinker. (2022). Slowing Heart Rate Protects Against Pathological Cardiac Hypertrophy. Function. 4(1). zqac055–zqac055. 2 indexed citations

Ludwig, A., et al.. (2020). Strategies for Neuroprotection in Multiple Sclerosis and the Role of Calcium. International Journal of Molecular Sciences. 21(5). 1663–1663. 32 indexed citations

Später, Daniela, Kristina Buac, Lior Zangi, et al.. (2013). A HCN4+ cardiomyogenic progenitor derived from the first heart field and human pluripotent stem cells. Nature Cell Biology. 15(9). 1098–1106. 147 indexed citations

Ludwig, A., et al.. (2008). Mouse models for studying pacemaker channel function and sinus node arrhythmia. Progress in Biophysics and Molecular Biology. 98(2-3). 179–185. 21 indexed citations

Biel, Martin, A. Ludwig, Xuemei Zong, & Franz Hofmann. (2005). Hyperpolarization-activated cation channels: A multi-gene family. Reviews of physiology, biochemistry and pharmacology. 136. 165–181. 33 indexed citations

10.

Bánkfalvi, Ágnes, et al.. (2004). Different proliferative activity of the glandular and myoepithelial lineages in benign proliferative and early malignant breast diseases. Modern Pathology. 17(9). 1051–1061. 39 indexed citations

11.

Sauer, Norbert, et al.. (2004). AtSUC8 and AtSUC9 encode functional sucrose transporters, but the closely related AtSUC6 and AtSUC7 genes encode aberrant proteins in different Arabidopsis ecotypes. The Plant Journal. 40(1). 120–130. 82 indexed citations

12.

Stieber, Juliane, Franz Hofmann, & A. Ludwig. (2004). Pacemaker Channels and Sinus Node Arrhythmia. Trends in Cardiovascular Medicine. 14(1). 23–28. 79 indexed citations

13.

Ludwig, A., Beate Schlierf, Anke Schardt, Klaus‐Armin Nave, & Michael Wegner. (2004). Sox10‐rtTA mouse line for tetracycline‐inducible expression of transgenes in neural crest cells and oligodendrocytes. genesis. 40(3). 171–175. 40 indexed citations

14.

Zong, Xiangang, Juliane Stieber, A. Ludwig, Franz Hofmann, & Martin Biel. (2001). A Single Histidine Residue Determines the pH Sensitivity of the Pacemaker Channel HCN2. Journal of Biological Chemistry. 276(9). 6313–6319. 54 indexed citations

15.

Bohn, Georg, Sven Moosmang, Heinke Conrad, et al.. (2000). Molecular basis of pacemaker current. 20.

16.

Ludwig, A., et al.. (1998). A family of hyperpolarization-activated mammalian cation channels. Nature. 393(6685). 587–591. 769 indexed citations breakdown →

17.

Welling, Andrea, Ľubica Lacinová, A. Ludwig, et al.. (1995). Expression of the L-type calcium channel with two different ? subunits and its modulation by Ro 40-5967. Pflügers Archiv - European Journal of Physiology. 429(3). 400–411. 32 indexed citations

18.

Ludwig, A., et al.. (1994). Low temperature cultivation ? A step towards process optimisation. Cytotechnology. 15(1-3). 111–116. 51 indexed citations

19.

Welling, Annikki, Eva Bosse, Adolfo Cavalié, et al.. (1993). Stable co‐expression of calcium channel alpha 1, beta and alpha 2/delta subunits in a somatic cell line.. The Journal of Physiology. 471(1). 749–765. 58 indexed citations

20.

Ludwig, A., G. Kretzmer, & Karl Schügerl. (1992). Determination of a “critical shear stress level” applied to adherent mammalian cells. Enzyme and Microbial Technology. 14(3). 209–213. 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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