Helmut Hirt

1.7k citations

34 papers · 1.3k indexed · h-index 23

Impact in

Microbiology top 1%
- Antimicrobial Peptides and Activities
Infectious Diseases top 2%
- Antimicrobial Resistance in Staphylococcus

Papers in ⓘ

Microbiology 12
- Antimicrobial Peptides and Activities 10
Infectious Diseases 18
- Antimicrobial Resistance in Staphylococcus 18

Co-authors: Gary M. Dunny (19 shared papers)Sven‐Ulrik Gorr (4 shared papers)Patrick M. Schlievert (6 shared papers)Mastura Akhtar (2 shared papers)Luděk Žůrek (2 shared papers)Stanley L. Erlandsen (2 shared papers)John K. McCormick (3 shared papers)Xi Chen (1 shared paper)
Journals: Infection and Immunity (5 papers)Antimicrobial Agents and Chemotherapy (3 papers)Journal of Bacteriology (3 papers)Molecular Microbiology (2 papers)Peptides (2 papers)
Partner nations: United States Germany Sweden

In The Last Decade

Helmut Hirt

34 papers receiving 1.3k citations

Peers

Countries citing papers authored by Helmut Hirt

Since Specialization

Citations

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

Fields of papers citing papers by Helmut Hirt

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Helmut Hirt, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Helmut Hirt Line = papers co-authored together Helmut Hirt links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 34 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Aggregation and Binding Substances Enhance Pathogenicity in Rabbit Models ofEnterococcus faecalisEndocarditis Infection and Immunity ·Patrick M. Schlievert, Pamala J. Gahr, Aris Assimacopoulos, Martin M. Dinges, J. A. Stoehr, John Harmala, Helmut Hirt, Gary M. Dunny	1998	139
2	Antimicrobial GL13K Peptide Coatings Killed and Ruptured the Wall of Streptococcus gordonii and Prevented Formation and Growth of Biofilms PLoS ONE ·Xi Chen, Helmut Hirt, Yuping Li, Sven-Ulrik Gorr, Conrado Aparicio	2014	98
3	Antimicrobial Peptide GL13K Is Effective in Reducing Biofilms of Pseudomonas aeruginosa Antimicrobial Agents and Chemotherapy ·Helmut Hirt, Sven‐Ulrik Gorr	2013	95
4	Characterization of the Pheromone Response of theEnterococcus faecalisConjugative Plasmid pCF10: Complete Sequence and Comparative Analysis of the Transcriptional and Phenotypic Responses of pCF10-Containing Cells to Pheromone Induction Journal of Bacteriology ·Helmut Hirt, Dawn A. Manias, Edward M. Bryan, Joanna R. Klein, Jesper K. Marklund, Jack H. Staddon, Michael L. Paustian, Vivek Kapur, Gary M. Dunny	2005	87
5	In Vivo Induction of Virulence and Antibiotic Resistance Transfer in Enterococcus faecalis Mediated by the Sex Pheromone-Sensing System of pCF10 Infection and Immunity ·Helmut Hirt, Patrick M. Schlievert, Gary M. Dunny	2002	76
6	Horizontal Transfer of the Tetracycline Resistance Gene tetM Mediated by pCF10 Among Enterococcus faecalis in the House Fly (Musca domestica L.) Alimentary Canal Microbial Ecology ·Mastura Akhtar, Helmut Hirt, Luděk Žůrek	2009	70
7	Transcriptional Response of Enterococcus faecalis V583 to Erythromycin Antimicrobial Agents and Chemotherapy ·Ågot Aakra, Heidi Vebø, Lars Snipen, Helmut Hirt, Are H. Aastveit, Vivek Kapur, Gary M. Dunny, Barbara E. Murray, Ingolf F. Nes	2005	69
8	Lysine substitutions convert a bacterial-agglutinating peptide into a bactericidal peptide that retains anti-lipopolysaccharide activity and low hemolytic activity Peptides ·Mahsa Abdolhosseini, Seshagiri Rao Nandula, Jonathan Song, Helmut Hirt, Sven‐Ulrik Gorr	2012	56
9	Inducible Expression of Enterococcus faecalis Aggregation Substance Surface Protein Facilitates Bacterial Internalization by Cultured Enterocytes Infection and Immunity ·Carol L. Wells, Elizabeth A. Moore, Julie A. Hoag, Helmut Hirt, Gary M. Dunny, Stanley L. Erlandsen	2000	56
10	An amino‐terminal domain of Enterococcus faecalis aggregation substance is required for aggregation, bacterial internalization by epithelial cells and binding to lipoteichoic acid Molecular Microbiology ·Christopher M. Waters, Helmut Hirt, John K. McCormick, Patrick M. Schlievert, Carol L. Wells, Gary M. Dunny	2004	55
11	Circulating Interferon in Man After Administration of Exogenous Human Leukocyte Interferon<xref ref-type="fn" rid="fn2"><sup>2</sup></xref><xref ref-type="fn" rid="fn3"><sup>3</sup></xref> JNCI Journal of the National Cancer Institute ·G Emödi, M Just, R. Hernandez, Helmut Hirt	1975	55
12	Heterologous Inducible Expression of Enterococcus faecalis pCF10 Aggregation Substance Asc10 in Lactococcus lactis and Streptococcus gordonii Contributes to Cell Hydrophobicity and Adhesion to Fibrin Journal of Bacteriology ·Helmut Hirt, Stanley L. Erlandsen, Gary M. Dunny	2000	51
13	A paracrine peptide sex pheromone also acts as an autocrine signal to induce plasmid transfer and virulence factor expressionin vivo Proceedings of the National Academy of Sciences ·Josephine R. Chandler, Helmut Hirt, Gary M. Dunny	2005	47
14	Enterococcus faecalis Sex Pheromone cCF10 Enhances Conjugative Plasmid Transfer In Vivo mBio ·Helmut Hirt, Kerryl E. Greenwood‐Quaintance, Melissa J. Karau, Lisa Till, Purna Kashyap, Robin Patel, Gary M. Dunny	2018	42
15	A D-enantiomer of the antimicrobial peptide GL13K evades antimicrobial resistance in the Gram positive bacteria Enterococcus faecalis and Streptococcus gordonii PLoS ONE ·Helmut Hirt, Jeffrey W. Hall, E L Larson, Sven‐Ulrik Gorr	2018	40
16	Antibodies to a Surface-Exposed, N-terminal Domain of Aggregation Substance Are Not Protective in the Rabbit Model of Enterococcus faecalis Infective Endocarditis Infection and Immunity ·John K. McCormick, Helmut Hirt, Christopher M. Waters, Timothy J. Tripp, Gary M. Dunny, Patrick M. Schlievert	2001	33
17	Peptide pheromone-induced transfer of plasmid pCF10 in Enterococcus faecalis: probing the genetic and molecular basis for specificity of the pheromone response Peptides ·Gary M. Dunny, Michelle H. Antiporta, Helmut Hirt	2001	31
18	Biochemical, immunological and ultrastructural characterization of aggregation substances encoded by Enterococcus faeclis sex‐pheromone plasmids European Journal of Biochemistry ·Helmut Hirt, Gerhard Wanner, Dominique Galli, Reinhard Wirth	1993	30
19	Pathogenic mechanisms of enterococcal endocarditis Current Infectious Disease Reports ·John K. McCormick, Helmut Hirt, Gary M. Dunny, Patrick M. Schlievert	2000	30
20	Comparative analysis of 18 sex pheromone plasmids fromEnterococcus faecalis: detection of a new insertion element on pPD1 and implications for the evolution of this plasmid family Molecular and General Genetics MGG ·Helmut Hirt, Reinhard Wirth, Albrecht Muscholl	1996	29

About Helmut Hirt

Helmut Hirt is a scholar working on Microbiology, Infectious Diseases, Periodontics, Molecular Medicine and Endocrinology, having authored 34 papers that have together received 1.3k indexed citations. Recurring topics across this work include Antimicrobial Resistance in Staphylococcus (18 papers), Antimicrobial Peptides and Activities (10 papers), Bacterial biofilms and quorum sensing (6 papers), Infective Endocarditis Diagnosis and Management (5 papers), Streptococcal Infections and Treatments (5 papers), Bacterial Genetics and Biotechnology (4 papers), Biochemical and Structural Characterization (4 papers) and Probiotics and Fermented Foods (4 papers). The work is most often cited by research in Microbiology (336 citations), Infectious Diseases (560 citations), Periodontics (108 citations), Molecular Medicine (114 citations) and Endocrinology (97 citations). Helmut Hirt has collaborated with scholars based in United States, Germany and Sweden. Frequent co-authors include Gary M. Dunny, Sven‐Ulrik Gorr, Patrick M. Schlievert, Mastura Akhtar, Luděk Žůrek, Stanley L. Erlandsen, John K. McCormick, Xi Chen, Sven-Ulrik Gorr and Conrado Aparicio. Their work appears in journals such as Infection and Immunity, Antimicrobial Agents and Chemotherapy, Journal of Bacteriology, Molecular Microbiology and Peptides.

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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