R. Lehmann

821 total citations
27 papers, 619 citations indexed

About

R. Lehmann is a scholar working on Complementary and alternative medicine, Immunology and Epidemiology. According to data from OpenAlex, R. Lehmann has authored 27 papers receiving a total of 619 indexed citations (citations by other indexed papers that have themselves been cited), including 13 papers in Complementary and alternative medicine, 11 papers in Immunology and 4 papers in Epidemiology. Recurrent topics in R. Lehmann's work include Herbal Medicine Research Studies (11 papers), Toxin Mechanisms and Immunotoxins (9 papers) and Complementary and Alternative Medicine Studies (7 papers). R. Lehmann is often cited by papers focused on Herbal Medicine Research Studies (11 papers), Toxin Mechanisms and Immunotoxins (9 papers) and Complementary and Alternative Medicine Studies (7 papers). R. Lehmann collaborates with scholars based in Australia, Switzerland and Germany. R. Lehmann's co-authors include A. Matthias, Kerry Bone, Kerry G. Penman, H. Lutz, C Wolfensberger, James J. De Voss, R. S. Addison, Linda K Banbury, Lesley Stevenson and David N. Leach and has published in prestigious journals such as British Journal of Pharmacology, Molecules and Life Sciences.

In The Last Decade

R. Lehmann

26 papers receiving 586 citations

Peers

Countries citing papers authored by R. Lehmann

Since Specialization

Citations

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

Fields of papers citing papers by R. Lehmann

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Lehmann

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Metabolism of the major Echinacea alkylamideN‐isobutyldodeca‐2E,4E,8Z,10Z‐tetraenamide by human recombinant cytochrome P450 enzymes and human liver microsomes 2010 ·Phytotherapy Research ·(unknown), A. Matthias, Kerry Bone, Elizabeth M. J. Gillam, R. Lehmann	10
2	Enhanced antioxidant effect of a herbal-nutrient complex including ascorbic acid and Polygonum cuspidatum extract(containing resveratrol) 2007 ·ResearchOnline at James Cook University (James Cook University) ·Christopher N. Andrews, A. Matthias, Linda L. Agnew, (unknown), Kerry Bone, R. Lehmann, Kenneth Watson	1
3	Permeability studies of Kavalactones using a Caco-2 cell monolayer model 2007 ·Journal of Clinical Pharmacy and Therapeutics ·A. Matthias, Joanne T. Blanchfield, Kerry G. Penman, Kerry Bone, István Tóth, R. Lehmann	8
4	Comparison of Echinacea alkylamide pharmacokinetics between liquid and tablet preparations 2007 ·Phytomedicine ·A. Matthias, R. S. Addison, Linda L. Agnew, Kerry Bone, Kenneth Watson, R. Lehmann	17
5	Alkylamides from Echinacea Modulate Induced Immune Responses in Macrophages 2007 ·Immunological Investigations ·A. Matthias, Linda K Banbury, Lesley Stevenson, Kerry Bone, David N. Leach, R. Lehmann	45
6	Stereoselective synthesis, natural occurrence and CB₂receptor binding affinities of alkylamides from herbal medicines such as Echinacea sp. 2006 ·Organic & Biomolecular Chemistry ·(unknown), A. Matthias, Jürg Gertsch, Stefan Raduner, Kerry Bone, R. Lehmann, (unknown)	29
7	Echinacea intake induces an immune response through altered expression of leucocyte hsp70, increased white cell counts and improved erythrocyte antioxidant defences 2005 ·Journal of Clinical Pharmacy and Therapeutics ·Linda L. Agnew, (unknown), A. Matthias, R. Lehmann, Kerry Bone, Kenneth Watson	19
8	Cytochrome P450 enzyme-mediated degradation of Echinacea alkylamides in human liver microsomes 2005 ·Chemico-Biological Interactions ·A. Matthias, Elizabeth M. J. Gillam, Kerry G. Penman, (unknown), Kerry Bone, James J. De Voss, R. Lehmann	30
9	Echinacea alkamide disposition and pharmacokinetics in humans after tablet ingestion 2005 ·Life Sciences ·A. Matthias, R. S. Addison, Kerry G. Penman, R. G. Dickinson, Kerry Bone, R. Lehmann	58
10	Bioavailability of Echinacea Constituents: Caco-2 Monolayers and Pharmacokinetics of the Alkylamides and Caffeic Acid Conjugates 2005 ·Molecules ·A. Matthias, Kerry G. Penman, (unknown), Kerry Bone, James J. De Voss, R. Lehmann	21
11	Permeability studies of alkylamides and caffeic acid conjugates from echinacea using a Caco-2 cell monolayer model 2004 ·Journal of Clinical Pharmacy and Therapeutics ·A. Matthias, Joanne T. Blanchfield, Kerry G. Penman, István Tóth, (unknown), James J. De Voss, R. Lehmann	71
12	Two approaches for determining the urinary excretion patterns of nucleosides--HPLC and CE. 1999 ·PubMed ·Xu Guo, (unknown), (unknown), Peng Lu, (unknown), R. Lehmann, H.M. Liebich	5
13	Retrovirus infections in non-domestic felids: serological studies and attempts to isolate a lentivirus 1992 ·Veterinary Immunology and Immunopathology ·H. Lutz, (unknown), R. Lehmann, (unknown), C Wolfensberger	38
14	Immunization-induced decrease of the CD4+:CD8+ ratio in cats experimentally infected with feline immunodeficiency virus 1992 ·Veterinary Immunology and Immunopathology ·R. Lehmann, (unknown), Eva Niederer, (unknown), Walter Fierz, André Aubert, Christopher D. Ackley, Max D. Cooper, Mary B. Tompkins, H. Lutz	38
15	Tumor necrosis factor α levels in cats experimentally infected with feline immunodeficiency virus: effects of immunization and feline leukemia virus infection 1992 ·Veterinary Immunology and Immunopathology ·R. Lehmann, Helen Joller, Bart L. Haagmans, H. Lutz	22
16	Vaccination of cats experimentally infected with feline immunodeficiency virus, using a recombinant feline leukemia virus vaccine 1991 ·Journal of the American Veterinary Medical Association ·R. Lehmann, Marco Franchini, André Aubert, C Wolfensberger, (unknown), H. Lutz	44
17	Planare Komplexe von unsymmetrisch substituierten Alkyl- und Aryl-α.β-diondioximen mit den Ionen Nickel(II), Palladium(II) und Platin(II) / Planar Complexes of Unsymmetrically Substituted Alkyl and Aryl-1,2-dionedioximes with the Ions Nickel(II), Palladium(II) and Platinum(II) 1979 ·Zeitschrift für Naturforschung B ·H. J. Keller, R. Lehmann	1
18	The oxidation product of bis(glyoximato)palladium(II) with iodine 1976 ·Acta Crystallographica Section B ·(unknown), H. J. Keller, R. Lehmann, Jean Weiss	12
19	Experimental paratuberculosis in sheep after oral, intratracheal, or intravenous inoculation: serologic and intradermal tests. 1968 ·PubMed ·R. S. Merkal, A. B. Larsen, Kamil Kopecký, J. P. Kluge, (unknown), R. Lehmann, (unknown)	15
20	Influence of coumaphos contaminants, vitamin A, and phenothiazine-lead arsenate on certain enzymes and vitamins of cattle treated with coumaphos. 1967 ·American Journal of Veterinary Research ·(unknown), Fred C. Wright, R. D. Radeleff, (unknown), R. Lehmann	3

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