Helen Hammer

607 total citations
30 papers, 469 citations indexed

About

Helen Hammer is a scholar working on Pharmacology, Oncology and Molecular Biology. According to data from OpenAlex, Helen Hammer has authored 30 papers receiving a total of 469 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Pharmacology, 15 papers in Oncology and 8 papers in Molecular Biology. Recurrent topics in Helen Hammer's work include Pharmacogenetics and Drug Metabolism (16 papers), Drug Transport and Resistance Mechanisms (14 papers) and Mass Spectrometry Techniques and Applications (4 papers). Helen Hammer is often cited by papers focused on Pharmacogenetics and Drug Metabolism (16 papers), Drug Transport and Resistance Mechanisms (14 papers) and Mass Spectrometry Techniques and Applications (4 papers). Helen Hammer collaborates with scholars based in Germany, Denmark and Sweden. Helen Hammer's co-authors include Albert Braeuning, Oliver Pötz, Felix F. Schmidt, Philip Marx‐Stoelting, Oliver Poetz, Thomas Joos, Per Artursson, Agneta Norén, Christine Wegler and Tore Bjerregaard Stage and has published in prestigious journals such as SHILAP Revista de lepidopterología, Analytical Chemistry and International Journal of Molecular Sciences.

In The Last Decade

Helen Hammer

28 papers receiving 458 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Helen Hammer Germany	11	162	154	147	60	48	30	469
Tsutomu Yoshimura Japan	13	171 1.1×	205 1.3×	183 1.2×	88 1.5×	23 0.5×	28	594
I. Gardner United Kingdom	10	195 1.2×	133 0.9×	103 0.7×	60 1.0×	55 1.1×	17	510
Daniel R. Mudra United States	11	270 1.7×	217 1.4×	200 1.4×	49 0.8×	23 0.5×	18	647
Arnaud Bruyère France	15	148 0.9×	99 0.6×	267 1.8×	146 2.4×	58 1.2×	35	595
Paweł Baranczewski Sweden	14	228 1.4×	311 2.0×	128 0.9×	30 0.5×	24 0.5×	31	687
Anna-Karin Sohlenius-Sternbeck Sweden	12	282 1.7×	171 1.1×	212 1.4×	46 0.8×	22 0.5×	22	594
Caitlin Lynch United States	14	171 1.1×	154 1.0×	91 0.6×	26 0.4×	49 1.0×	26	464
Brigitte Gerin Belgium	7	215 1.3×	226 1.5×	132 0.9×	127 2.1×	50 1.0×	11	761
Hilde Bohets Belgium	11	311 1.9×	209 1.4×	254 1.7×	72 1.2×	83 1.7×	18	769
Jillian Ross United Kingdom	6	268 1.7×	132 0.9×	137 0.9×	38 0.6×	31 0.6×	7	426

Countries citing papers authored by Helen Hammer

Since Specialization

Citations

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

Fields of papers citing papers by Helen Hammer

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Helen Hammer

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

García, Vicente, Helen Hammer, Catherine M. Verfaillie, et al.. (2025). Nutrient environment improves drug metabolic activity in human iPSC-derived hepatocytes and HepG2. Archives of Toxicology. 99(11). 4493–4511.

Asensio, Maitane, Óscar Briz, Elisa Herráez, et al.. (2024). Sensitizing cholangiocarcinoma to chemotherapy by inhibition of the drug-export pump MRP3. Biomedicine & Pharmacotherapy. 180. 117533–117533.

Ernst, Martin, Patrick C. Souverein, Olaf H. Klungel, et al.. (2024). Dicloxacillin is an inducer of intestinal P‐glycoprotein but neither dicloxacillin nor flucloxacillin increases the risk of stroke/systemic embolism in direct oral anticoagulant users. British Journal of Clinical Pharmacology. 90(12). 3252–3262. 1 indexed citations

Hammer, Helen, Flemming Nielsen, Oliver Pötz, et al.. (2024). Modeling mechanisms of chemotherapy-induced peripheral neuropathy and chemotherapy transport using induced pluripotent stem cell-derived sensory neurons. Neuropharmacology. 258. 110062–110062. 2 indexed citations

Lichtenstein, Dajana, Helen Hammer, Kyoko Momoi, et al.. (2023). Unnatural Endotype B PPAPs as Novel Compounds with Activity against Mycobacterium tuberculosis. Journal of Medicinal Chemistry. 66(22). 15073–15083. 3 indexed citations

Nielsen, Flemming, Kim Brøsen, Per Damkier, et al.. (2023). Flucloxacillin Is a Weak Inducer of CYP3A4 in Healthy Adults and 3D Spheroid of Primary Human Hepatocytes. Clinical Pharmacology & Therapeutics. 114(2). 434–445. 7 indexed citations

Ernst, Martin, et al.. (2023). Dicloxacillin‐warfarin drug–drug interaction—A register‐based study and in vitro investigations in 3D spheroid primary human hepatocytes. British Journal of Clinical Pharmacology. 89(8). 2614–2624. 4 indexed citations

Hammer, Helen, et al.. (2023). 3D Spheroid Primary Human Hepatocytes for Prediction of Cytochrome P450 and Drug Transporter Induction. Clinical Pharmacology & Therapeutics. 113(6). 1284–1294. 24 indexed citations

Lozano, Elisa, Helen Hammer, Silvia Di Giacomo, et al.. (2023). Sensitization of cholangiocarcinoma cells to chemotherapy through BCRP inhibition with β-caryophyllene oxide. Biomedicine & Pharmacotherapy. 170. 116038–116038. 9 indexed citations

10.

Knebel, Constanze, Roderich D. Süßmuth, Helen Hammer, Albert Braeuning, & Philip Marx‐Stoelting. (2022). New Approach Methods for Hazard Identification: A Case Study with Azole Fungicides Affecting Molecular Targets Associated with the Adverse Outcome Pathway for Cholestasis. Cells. 11(20). 3293–3293. 4 indexed citations

11.

Sprenger, Heike, Josef Daniel Rasinger, Helen Hammer, et al.. (2022). Proteomic analysis of hepatic effects of phenobarbital in mice with humanized liver. Archives of Toxicology. 96(10). 2739–2754. 8 indexed citations

12.

Hammer, Helen, Felix F. Schmidt, Philip Marx‐Stoelting, Oliver Pötz, & Albert Braeuning. (2020). Cross-species analysis of hepatic cytochrome P450 and transport protein expression. Archives of Toxicology. 95(1). 117–133. 69 indexed citations

13.

Sprenger, Heike, Ute Hofmann, Felix F. Schmidt, et al.. (2020). Polycyclic Aromatic Hydrocarbons Activate the Aryl Hydrocarbon Receptor and the Constitutive Androstane Receptor to Regulate Xenobiotic Metabolism in Human Liver Cells. International Journal of Molecular Sciences. 22(1). 372–372. 49 indexed citations

14.

Voß, Linn, Janja Vidmar, Valerie Stock, et al.. (2020). Impact of iron oxide nanoparticles on xenobiotic metabolism in HepaRG cells. Archives of Toxicology. 94(12). 4023–4035. 12 indexed citations

15.

Poetz, Oliver, Helen Hammer, Markus F. Templin, et al.. (2018). Peptide-Based Sandwich Immunoassay for the Quantification of the Membrane Transporter Multidrug Resistance Protein 1. Analytical Chemistry. 90(9). 5788–5794. 6 indexed citations

16.

Hammer, Helen, Kathrin Klein, Hannes Planatscher, et al.. (2018). Direct Quantification of Cytochromes P450 and Drug Transporters—A Rapid, Targeted Mass Spectrometry-Based Immunoassay Panel for Tissues and Cell Culture Lysates. Drug Metabolism and Disposition. 46(4). 387–396. 38 indexed citations

17.

Knebel, Constanze, Ivano Eberini, Luca Palazzolo, et al.. (2018). Propiconazole is an activator of AHR and causes concentration additive effects with an established AHR ligand. Archives of Toxicology. 92(12). 3471–3486. 20 indexed citations

18.

Marx‐Stoelting, Philip, Constanze Knebel, Flávia de Holanda Schmidt, et al.. (2017). Hepatotoxic effects of cyproconazole and prochloraz in wild-type and hCAR/hPXR mice. Archives of Toxicology. 91(8). 2895–2907. 43 indexed citations

19.

Wegler, Christine, Fabienne Z. Gaugaz, Tommy B. Andersson, et al.. (2017). Variability in Mass Spectrometry-based Quantification of Clinically Relevant Drug Transporters and Drug Metabolizing Enzymes. Molecular Pharmaceutics. 14(9). 3142–3151. 102 indexed citations

20.

Wegler, Christine, Fabienne Z. Gaugaz, Tommy B. Andersson, et al.. (2016). Protein quantification of human hepatic drug transporters and metabolizing enzymes: an inter-laboratory and methodological comparison. Drug Metabolism Reviews. 48. 98–98. 1 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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