Christopher Volk

3.1k total citations · 1 hit paper
22 papers, 2.5k citations indexed

About

Christopher Volk is a scholar working on Oncology, Molecular Biology and Cellular and Molecular Neuroscience. According to data from OpenAlex, Christopher Volk has authored 22 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Oncology, 9 papers in Molecular Biology and 6 papers in Cellular and Molecular Neuroscience. Recurrent topics in Christopher Volk's work include Drug Transport and Resistance Mechanisms (17 papers), Amino Acid Enzymes and Metabolism (6 papers) and Neuroscience and Neuropharmacology Research (6 papers). Christopher Volk is often cited by papers focused on Drug Transport and Resistance Mechanisms (17 papers), Amino Acid Enzymes and Metabolism (6 papers) and Neuroscience and Neuropharmacology Research (6 papers). Christopher Volk collaborates with scholars based in Germany, United States and Switzerland. Christopher Volk's co-authors include Hermann Koepsell, Katrin Susanne Lips, Valentin Gorboulev, Petra Arndt, Oliver Kempski, U. Karbach, Jochen C. Ulzheimer, Georg Nagel, Bruce A. Hirayama and Ana Dı́ez-Sampedro and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and Clinical Cancer Research.

In The Last Decade

Christopher Volk

22 papers receiving 2.5k 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.

Polyspecific Organic Cation Transporters: Structure, Function, Physiological Roles, and Biopharmaceutical Implications

2007 788 citations Hermann Koepsell, Katrin Susanne Lips et al. Pharmaceutical Research profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Christopher Volk Germany	19	1.4k	765	671	439	366	22	2.5k
G. Rumrich Germany	37	1.0k 0.8×	1.8k 2.3×	587 0.9×	471 1.1×	205 0.6×	80	3.3k
Masato Otsuka Japan	24	596 0.4×	821 1.1×	262 0.4×	252 0.6×	329 0.9×	70	3.1k
Valentin Gorboulev Germany	35	2.9k 2.1×	1.3k 1.7×	1.5k 2.2×	1.0k 2.3×	534 1.5×	55	4.5k
Gian Luigi Sottocasa Italy	16	431 0.3×	1.6k 2.1×	287 0.4×	345 0.8×	227 0.6×	24	2.6k
Alain Minn France	28	422 0.3×	530 0.7×	223 0.3×	254 0.6×	359 1.0×	53	1.9k
Keiko Maekawa Japan	31	665 0.5×	1.3k 1.7×	189 0.3×	198 0.5×	542 1.5×	98	2.8k
Ai Tsuji Japan	21	511 0.4×	608 0.8×	245 0.4×	163 0.4×	150 0.4×	74	1.6k
Toyoko Hiroi Japan	32	565 0.4×	825 1.1×	147 0.2×	361 0.8×	292 0.8×	65	2.7k
Shannon Dallas United States	22	636 0.5×	580 0.8×	354 0.5×	108 0.2×	289 0.8×	32	2.0k
Thomas P. Douša United States	41	372 0.3×	2.8k 3.7×	303 0.5×	287 0.7×	489 1.3×	181	5.2k

Countries citing papers authored by Christopher Volk

Since Specialization

Citations

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

Fields of papers citing papers by Christopher Volk

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Christopher Volk

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

1.

Bellerose, Julie, Brian Rush, D. Velez, et al.. (2024). Double Asteroid Redirection Test (DART): Navigating to obliteration. Acta Astronautica. 219. 417–427. 2 indexed citations

2.

Nies, Anne T., Elke Schaeffeler, Heiko van der Kuip, et al.. (2013). Cellular Uptake of Imatinib into Leukemic Cells Is Independent of Human Organic Cation Transporter 1 (OCT1). Clinical Cancer Research. 20(4). 985–994. 52 indexed citations

3.

Minuesa, Gerard, Christopher Volk, Míriam Molina‐Arcas, et al.. (2009). Transport of Lamivudine [(-)-β-l-2′,3′-Dideoxy-3′-thiacytidine] and High-Affinity Interaction of Nucleoside Reverse Transcriptase Inhibitors with Human Organic Cation Transporters 1, 2, and 3. Journal of Pharmacology and Experimental Therapeutics. 329(1). 252–261. 109 indexed citations

4.

Volk, Christopher, Valentin Gorboulev, Alexander Kotzsch, T. Müller, & Hermann Koepsell. (2009). Five Amino Acids in the Innermost Cavity of the Substrate Binding Cleft of Organic Cation Transporter 1 Interact with Extracellular and Intracellular Corticosterone. Molecular Pharmacology. 76(2). 275–289. 42 indexed citations

5.

Sturm, Alexander, Valentin Gorboulev, Dmitry Gorbunov, et al.. (2007). Identification of cysteines in rat organic cation transporters rOCT1 (C322, C451) and rOCT2 (C451) critical for transport activity and substrate affinity. American Journal of Physiology-Renal Physiology. 293(3). F767–F779. 18 indexed citations

6.

Koepsell, Hermann, Katrin Susanne Lips, & Christopher Volk. (2007). Polyspecific Organic Cation Transporters: Structure, Function, Physiological Roles, and Biopharmaceutical Implications. Pharmaceutical Research. 24(7). 1227–1251. 788 indexed citations breakdown →

7.

Lips, Katrin Susanne, Christopher Volk, Bernhard M. Schmitt, et al.. (2005). Polyspecific Cation Transporters Mediate Luminal Release of Acetylcholine from Bronchial Epithelium. American Journal of Respiratory Cell and Molecular Biology. 33(1). 79–88. 179 indexed citations

8.

Gorboulev, Valentin, Natalia V. Shatskaya, Christopher Volk, & Hermann Koepsell. (2005). Subtype-Specific Affinity for Corticosterone of Rat Organic Cation Transporters rOCT1 and rOCT2 Depends on Three Amino Acids within the Substrate Binding Region. Molecular Pharmacology. 67(5). 1612–1619. 75 indexed citations

9.

Dı́ez-Sampedro, Ana, Bruce A. Hirayama, Valentin Gorboulev, et al.. (2003). A glucose sensor hiding in a family of transporters. Proceedings of the National Academy of Sciences. 100(20). 11753–11758. 246 indexed citations

10.

Volk, Christopher, et al.. (2003). Different Affinities of Inhibitors to the Outwardly and Inwardly Directed Substrate Binding Site of Organic Cation Transporter 2. Molecular Pharmacology. 64(5). 1037–1047. 53 indexed citations

11.

Goralski, Kerry B., et al.. (2002). The Cation Transporters rOCT1 and rOCT2 Interact with Bicarbonate but Play Only a Minor Role for Amantadine Uptake into Rat Renal Proximal Tubules. Journal of Pharmacology and Experimental Therapeutics. 303(3). 959–968. 37 indexed citations

12.

Arndt, Petra, Christopher Volk, Valentin Gorboulev, et al.. (2001). Interaction of cations, anions, and weak base quinine with rat renal cation transporter rOCT2 compared with rOCT1. American Journal of Physiology-Renal Physiology. 281(3). F454–F468. 105 indexed citations

13.

Gorboulev, Valentin, et al.. (1999). Selectivity of the Polyspecific Cation Transporter rOCT1 Is Changed by Mutation of Aspartate 475 to Glutamate. Molecular Pharmacology. 56(6). 1254–1261. 93 indexed citations

14.

Gorboulev, Valentin, et al.. (1999). Selectivity of the Polyspecific Cation Transporter rOCT1 Is Changed by Mutation of Aspartate 475 to Glutamate. Molecular Pharmacology. 56(6). 1254–1261. 16 indexed citations

15.

Volk, Christopher, et al.. (1998). A proton-translocating H+-ATPase is involved in C6 Glial pH regulation. Biochimica et Biophysica Acta (BBA) - Biomembranes. 1372(1). 28–36. 21 indexed citations

16.

Veyhl, Maike, Katharina Wagner, Christopher Volk, et al.. (1998). Transport of the new chemotherapeutic agent β- d -glucosylisophosphoramide mustard (D-19575) into tumor cells is mediated by the Na ⁺ - d -glucose cotransporter SAAT1. Proceedings of the National Academy of Sciences. 95(6). 2914–2919. 66 indexed citations

17.

Büsch, Andreas, U. Karbach, Valentin Gorboulev, et al.. (1998). Human Neurons Express the Polyspecific Cation Transporter hOCT2, Which Translocates Monoamine Neurotransmitters, Amantadine, and Memantine. Molecular Pharmacology. 54(2). 342–352. 270 indexed citations

18.

Nagel, Georg, Christopher Volk, Thomas Friedrich, et al.. (1997). A Reevaluation of Substrate Specificity of the Rat Cation Transporter rOCT1. Journal of Biological Chemistry. 272(51). 31953–31956. 72 indexed citations

19.

Volk, Christopher, et al.. (1997). Inhibition of lactate export by quercetin acidifies rat glial cells in vitro. Neuroscience Letters. 223(2). 121–124. 41 indexed citations

20.

Kempski, Oliver & Christopher Volk. (1994). Neuron-Glial Interaction During Injury and Edema of the CNS. PubMed. 60. 7–11. 35 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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