Marcel Grapp

1.2k total citations
17 papers, 841 citations indexed

About

Marcel Grapp is a scholar working on Molecular Biology, Toxicology and Clinical Psychology. According to data from OpenAlex, Marcel Grapp has authored 17 papers receiving a total of 841 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Molecular Biology, 8 papers in Toxicology and 5 papers in Clinical Psychology. Recurrent topics in Marcel Grapp's work include Forensic Toxicology and Drug Analysis (8 papers), Psychedelics and Drug Studies (5 papers) and Alcohol Consumption and Health Effects (4 papers). Marcel Grapp is often cited by papers focused on Forensic Toxicology and Drug Analysis (8 papers), Psychedelics and Drug Studies (5 papers) and Alcohol Consumption and Health Effects (4 papers). Marcel Grapp collaborates with scholars based in Germany, United States and Netherlands. Marcel Grapp's co-authors include Jutta Gärtner, Robert Steinfeld, Henning Urlaub, R. Kraetzner, Johanna Bückers, Hans-Joachim Galla, Philip S. Low, Arne Wrede, Sabine Hüwel and Nicolas Snaidero and has published in prestigious journals such as Nucleic Acids Research, Journal of Biological Chemistry and Nature Communications.

In The Last Decade

Marcel Grapp

17 papers receiving 828 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Marcel Grapp Germany 14 409 225 132 111 84 17 841
Weihuan Wang China 17 425 1.0× 152 0.7× 18 0.1× 12 0.1× 53 0.6× 27 830
Qing Yan China 18 379 0.9× 39 0.2× 9 0.1× 12 0.1× 40 0.5× 68 865
Anna Morelli Italy 16 599 1.5× 24 0.1× 18 0.1× 8 0.1× 107 1.3× 18 2.0k
Susan A. Ridge United Kingdom 12 434 1.1× 36 0.2× 41 0.3× 4 0.0× 82 1.0× 14 1.2k
Tong Qiao China 17 292 0.7× 25 0.1× 12 0.1× 15 0.1× 86 1.0× 30 640
Richard J. Focht United States 10 472 1.2× 144 0.6× 3 0.0× 22 0.2× 73 0.9× 10 1.4k
Alex E. Felice Malta 16 270 0.7× 53 0.2× 4 0.0× 73 0.7× 153 1.8× 59 1.0k
Robert George United States 14 530 1.3× 22 0.1× 14 0.1× 22 0.2× 109 1.3× 28 1.1k
Marcelo Reis Brazil 15 573 1.4× 23 0.1× 7 0.1× 33 0.3× 67 0.8× 34 941

Countries citing papers authored by Marcel Grapp

Since Specialization
Citations

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

Fields of papers citing papers by Marcel Grapp

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Marcel Grapp

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

All Works

17 of 17 papers shown
1.
2.
3.
Müller, Dieter, Hartmud Neurath, Merja A. Neukamm, et al.. (2019). New synthetic opioid cyclopropylfentanyl together with other novel synthetic opioids in respiratory insufficient comatose patients detected by toxicological analysis. Clinical Toxicology. 57(9). 806–812. 17 indexed citations
4.
5.
6.
Grapp, Marcel, Christoph Sauer, C Vidal, & Dieter Müller. (2015). GC–MS analysis of the designer drug α-pyrrolidinovalerophenone and its metabolites in urine and blood in an acute poisoning case. Forensic Science International. 259. e14–e19. 31 indexed citations
7.
Grapp, Marcel, Hans H. Maurer, & Herbert Desel. (2015). Systematic forensic toxicological analysis by GC‐MS in serum using automated mass spectral deconvolution and identification system. Drug Testing and Analysis. 8(8). 816–825. 16 indexed citations
8.
Grapp, Marcel, Arne Wrede, Michaela Schweizer, et al.. (2013). Choroid plexus transcytosis and exosome shuttling deliver folate into brain parenchyma. Nature Communications. 4(1). 2123–2123. 254 indexed citations
9.
Grapp, Marcel, Herbert Desel, & Wolfgang Grellner. (2013). Validation of an alcohol dehydrogenase method for forensic blood alcohol determination on Thermo Scientific Indiko analyzer and comparison with Technikon autoanalyzer. 1 indexed citations
10.
Grapp, Marcel, Tarja Linnankivi, Philip A. Wolf, et al.. (2012). Molecular characterization of folate receptor 1 mutations delineates cerebral folate transport deficiency. Brain. 135(7). 2022–2031. 90 indexed citations
11.
Thorn, Andrea, Robert Steinfeld, Marc Ziegenbein, et al.. (2012). Structure and activity of the only human RNase T2. Nucleic Acids Research. 40(17). 8733–8742. 39 indexed citations
12.
Grapp, Marcel, et al.. (2009). Novel CLN8 mutations confirm the clinical and ethnic diversity of late infantile neuronal ceroid lipofuscinosis. Clinical Genetics. 77(1). 79–85. 27 indexed citations
13.
Grapp, Marcel, Julia Kitz, Payam Dibaj, et al.. (2009). The homeodomain of PAX6 is essential for PAX6-dependent activation of the rat glucagon gene promoter: Evidence for a PH0-like binding that induces an active conformation. Biochimica et Biophysica Acta (BBA) - Gene Regulatory Mechanisms. 1789(5). 403–412. 7 indexed citations
14.
Welte, Cornelia U., et al.. (2009). Function of Ech Hydrogenase in Ferredoxin-Dependent, Membrane-Bound Electron Transport in Methanosarcina mazei. Journal of Bacteriology. 192(3). 674–678. 40 indexed citations
15.
Steinfeld, Robert, Marcel Grapp, R. Kraetzner, et al.. (2009). Folate Receptor Alpha Defect Causes Cerebral Folate Transport Deficiency: A Treatable Neurodegenerative Disorder Associated with Disturbed Myelin Metabolism. The American Journal of Human Genetics. 85(3). 354–363. 182 indexed citations
16.
Pal, Aritra, R. Kraetzner, Tim Gruene, et al.. (2008). Structure of Tripeptidyl-peptidase I Provides Insight into the Molecular Basis of Late Infantile Neuronal Ceroid Lipofuscinosis. Journal of Biological Chemistry. 284(6). 3976–3984. 36 indexed citations
17.
Grapp, Marcel, et al.. (2008). Synthesis of Formacetal‐Linked Dinucleotides to Facilitate dsDNA Bending and Binding to the Homeodomain of Pax6. European Journal of Organic Chemistry. 2008(12). 2100–2106. 2 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Weihuan Wang Breakdown of academic impact, for papers by Qing Yan Breakdown of academic impact, for papers by Anna Morelli Breakdown of academic impact, for papers by Susan A. Ridge Breakdown of academic impact, for papers by Tong Qiao Breakdown of academic impact, for papers by Richard J. Focht Breakdown of academic impact, for papers by Alex E. Felice Breakdown of academic impact, for papers by Robert George Breakdown of academic impact, for papers by Marcelo Reis
Rankless by CCL
2026