Leonard Amaral

10.1k total citations
207 papers, 8.0k citations indexed

About

Leonard Amaral is a scholar working on Molecular Biology, Molecular Medicine and Infectious Diseases. According to data from OpenAlex, Leonard Amaral has authored 207 papers receiving a total of 8.0k indexed citations (citations by other indexed papers that have themselves been cited), including 109 papers in Molecular Biology, 66 papers in Molecular Medicine and 54 papers in Infectious Diseases. Recurrent topics in Leonard Amaral's work include Phenothiazines and Benzothiazines Synthesis and Activities (78 papers), Antibiotic Resistance in Bacteria (66 papers) and Tuberculosis Research and Epidemiology (34 papers). Leonard Amaral is often cited by papers focused on Phenothiazines and Benzothiazines Synthesis and Activities (78 papers), Antibiotic Resistance in Bacteria (66 papers) and Tuberculosis Research and Epidemiology (34 papers). Leonard Amaral collaborates with scholars based in Portugal, Hungary and United States. Leonard Amaral's co-authors include Miguel Viveiros, Marta Martins, Isabel Couto, Joséph Molnár, Jette E. Kristiansen, Jean‐Marie Pagès, Gabriella Spengler, Liliana Rodrigues, Ana Martins and Sofia Santos Costa and has published in prestigious journals such as Nature, Journal of Biological Chemistry and Journal of Clinical Investigation.

In The Last Decade

Leonard Amaral

205 papers receiving 7.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Leonard Amaral Portugal 52 4.3k 2.6k 2.4k 1.4k 1.3k 207 8.0k
Glenn W. Kaatz United States 55 3.3k 0.8× 3.1k 1.2× 3.5k 1.5× 993 0.7× 1.2k 1.0× 133 7.8k
Miguel Viveiros Portugal 52 4.1k 1.0× 2.4k 0.9× 4.5k 1.9× 1.3k 0.9× 3.2k 2.5× 210 8.9k
Françoise Van Bambeke Belgium 54 3.6k 0.8× 3.0k 1.2× 2.6k 1.1× 742 0.5× 1.7k 1.3× 253 9.4k
Jean‐Marie Pagès France 60 4.8k 1.1× 6.2k 2.4× 1.5k 0.6× 1.1k 0.8× 947 0.7× 261 12.5k
Sylvie Garneau‐Tsodikova United States 45 4.5k 1.1× 852 0.3× 1.2k 0.5× 2.3k 1.6× 622 0.5× 174 8.0k
Marie‐Paule Mingeot‐Leclercq Belgium 41 2.7k 0.6× 1.2k 0.5× 941 0.4× 485 0.3× 730 0.6× 114 6.0k
Xilin Zhao United States 45 3.3k 0.8× 3.4k 1.3× 1.4k 0.6× 560 0.4× 1.5k 1.2× 116 8.2k
Rajendra Prasad India 46 3.3k 0.8× 1000 0.4× 3.4k 1.4× 789 0.5× 2.5k 1.9× 242 7.5k
Mark S. Butler Australia 40 3.8k 0.9× 1.1k 0.4× 564 0.2× 2.1k 1.5× 554 0.4× 147 8.7k
Marta Martins Portugal 35 1.8k 0.4× 1.5k 0.6× 1.1k 0.4× 567 0.4× 510 0.4× 79 4.1k

Countries citing papers authored by Leonard Amaral

Since Specialization
Citations

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

Fields of papers citing papers by Leonard Amaral

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Leonard Amaral

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

All Works

20 of 20 papers shown
1.
Nové, Márta, Annamária Kincses, József Molnár, Leonard Amaral, & Gabriella Spengler. (2019). The Role of Efflux Pumps and Environmental pH in Bacterial Multidrug Resistance. In Vivo. 34(1). 65–71. 16 indexed citations
2.
Martins, Célia, Gabriella Spengler, Joséph Molnár, et al.. (2016). Fluorimetric Methods for Analysis of Permeability, Drug Transport Kinetics, and Inhibition of the ABCB1 Membrane Transporter. Methods in molecular biology. 1395. 87–103. 9 indexed citations
3.
Amaral, Leonard, Ana Martins, Gabriella Spengler, & Joséph Molnár. (2014). Efflux pumps of Gram-negative bacteria: what they do, how they do it, with what and how to deal with them. Frontiers in Pharmacology. 4. 168–168. 121 indexed citations
4.
Martins, Ana, Attila Hunyadi, & Leonard Amaral. (2013). Mechanisms of Resistance in Bacteria: An Evolutionary Approach. The Open Microbiology Journal. 7(1). 53–58. 24 indexed citations
5.
Martins, Marta, Matthew P. McCusker, Miguel Viveiros, et al.. (2013). A Simple Method for Assessment of MDR Bacteria for Over-Expressed Efflux Pumps. The Open Microbiology Journal. 7(1). 72–82. 108 indexed citations
6.
Dutta, Noton K., Kaushiki Mazumdar, Sujata G. Dastidar, Petros C. Karakousis, & Leonard Amaral. (2011). New Patentable Use of an Old Neuroleptic Compound Thioridazine to Combat Tuberculosis: A Gene Regulation Perspective. Recent Patents on Anti-Infective Drug Discovery. 6(2). 128–138. 23 indexed citations
7.
Rodrigues, Liliana, Jorge Ramos, Isabel Couto, Leonard Amaral, & Miguel Viveiros. (2011). Ethidium bromide transport across Mycobacterium smegmatiscell-wall: correlation with antibiotic resistance. BMC Microbiology. 11(1). 35–35. 106 indexed citations
8.
Martins, Ana, et al.. (2011). Role of calcium in the efflux system of Escherichia coli. International Journal of Antimicrobial Agents. 37(5). 410–414. 40 indexed citations
9.
Martins, Ana, Andrea Vasas, Zsuzsanna Schelz, et al.. (2010). Constituents of Carpobrotus edulis inhibit P-glycoprotein of MDR1-transfected mouse lymphoma cells.. PubMed. 30(3). 829–35. 44 indexed citations
10.
Amaral, Leonard & Joséph Molnár. (2010). Therapy of XDR TB with Thioridazine a Drug Beyond Patent Protection but Eligible for Patent “As New Use”. Recent Patents on Anti-Infective Drug Discovery. 5(2). 109–114. 9 indexed citations
11.
Viveiros, Miguel, Marta Martins, Isabel Couto, et al.. (2010). Molecular tools for rapid identification and novel effective therapy against MDRTB/XDRTB infections. Expert Review of Anti-infective Therapy. 8(4). 465–480. 12 indexed citations
12.
Spengler, Gabriella, Miguel Viveiros, Marta Martins, et al.. (2009). Demonstration of the activity of P-glycoprotein by a semi-automated fluorometric method.. PubMed. 29(6). 2173–7. 20 indexed citations
13.
Amaral, Leonard, Gabriella Spengler, Miguel Viveiros, et al.. (2008). Assessment and comparison of efflux pumps of cancer cells and MDR bacteria under physiological conditions by a real-time semi-automated system. Anticancer Research. 28. 3193–3194. 1 indexed citations
14.
Viveiros, Miguel, Ana Martins, Laura Paixão, et al.. (2008). Demonstration of intrinsic efflux activity of Escherichia coli K-12 AG100 by an automated ethidium bromide method. International Journal of Antimicrobial Agents. 31(5). 458–462. 136 indexed citations
15.
Dutta, Noton K., Kaushiki Mazumdar, Sujata G. Dastidar, et al.. (2007). Potential management of resistant microbial infections with a novel non-antibiotic: the anti-inflammatory drug diclofenac sodium. International Journal of Antimicrobial Agents. 30(3). 242–249. 100 indexed citations
16.
Duarte, Noélia, Maria‐José U. Ferreira, Marta Martins, Miguel Viveiros, & Leonard Amaral. (2007). Antibacterial activity of ergosterol peroxide against Mycobacterium tuberculosis: dependence upon system and medium employed. Phytotherapy Research. 21(7). 601–604. 34 indexed citations
17.
Spengler, Gabriella, Annamária Molnár, Zsuzsanna Schelz, et al.. (2006). The Mechanism of Plasmid Curing in Bacteria. Current Drug Targets. 7(7). 823–841. 69 indexed citations
18.
Ordway, Diane, Marta Martins, Clara Leandro, et al.. (2004). Gamma delta T cell responses associated with the development of tuberculosis in health care workers. FEMS Immunology & Medical Microbiology. 43(3). 339–350. 13 indexed citations
19.
Amaral, Leonard, Marta Martins, Miguel Viveiros, et al.. (2004). Verapamil and Reserpin promote the killing of intracellular bacteria. Anticancer Research. 24. 1 indexed citations
20.
Stratton, Charles W., Víctor Lorian, & Leonard Amaral. (1992). Predictive Value of Blood Cultures. Infection Control and Hospital Epidemiology. 13(5). 293–294. 6 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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