John Pichardo

1.4k total citations
30 papers, 458 citations indexed

About

John Pichardo is a scholar working on Hepatology, Infectious Diseases and Epidemiology. According to data from OpenAlex, John Pichardo has authored 30 papers receiving a total of 458 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Hepatology, 20 papers in Infectious Diseases and 12 papers in Epidemiology. Recurrent topics in John Pichardo's work include Hepatitis C virus research (27 papers), HIV/AIDS drug development and treatment (20 papers) and Hepatitis B Virus Studies (11 papers). John Pichardo is often cited by papers focused on Hepatitis C virus research (27 papers), HIV/AIDS drug development and treatment (20 papers) and Hepatitis B Virus Studies (11 papers). John Pichardo collaborates with scholars based in United States, United Kingdom and Switzerland. John Pichardo's co-authors include F. George Njoroge, Andrew Prongay, Viyyoor Girijavallabhan, Nancy Butkiewicz, Vincent Madison, Kevin X. Chen, Srikanth Venkatraman, Ashok Arasappan, Stéphane Bogen and Nanhua Yao and has published in prestigious journals such as Angewandte Chemie International Edition, Analytical Biochemistry and Journal of Medicinal Chemistry.

In The Last Decade

John Pichardo

29 papers receiving 414 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John Pichardo United States	15	205	163	153	146	120	30	458
Kevin X. Chen United States	14	210 1.0×	211 1.3×	233 1.5×	163 1.1×	112 0.9×	23	562
Nancy Butkiewicz United States	14	221 1.1×	131 0.8×	99 0.6×	118 0.8×	148 1.2×	24	409
Élise Ghiro Canada	11	251 1.2×	210 1.3×	258 1.7×	166 1.1×	120 1.0×	15	582
Stefania Colarusso Italy	12	295 1.4×	184 1.1×	218 1.4×	174 1.2×	144 1.2×	16	619
Ashok Arasappan United States	17	147 0.7×	203 1.2×	346 2.3×	122 0.8×	83 0.7×	31	559
Savina Malancona Italy	13	107 0.5×	122 0.7×	215 1.4×	101 0.7×	75 0.6×	21	413
Timothy A. Stammers Canada	13	116 0.6×	117 0.7×	220 1.4×	82 0.6×	81 0.7×	21	462
Gulrez Fazal Canada	13	371 1.8×	207 1.3×	256 1.7×	267 1.8×	275 2.3×	16	810
Sandrine Vendeville France	11	135 0.7×	184 1.1×	174 1.1×	144 1.0×	195 1.6×	15	519
Christopher T. Lemke Canada	15	90 0.4×	291 1.8×	112 0.7×	287 2.0×	58 0.5×	27	647

Countries citing papers authored by John Pichardo

Since Specialization

Citations

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

Fields of papers citing papers by John Pichardo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Pichardo

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

Zhang, Nanjing, Anthony Turpoff, Xiaoyan Zhang, et al.. (2015). Discovery of 2-(4-sulfonamidophenyl)-indole 3-carboxamides as potent and selective inhibitors with broad hepatitis C virus genotype activity targeting HCV NS4B. Bioorganic & Medicinal Chemistry Letters. 26(2). 594–601. 10 indexed citations

Bennett, Frank, Yuhua Huang, Siska Hendrata, et al.. (2010). The introduction of P4 substituted 1-methylcyclohexyl groups into Boceprevir®: A change in direction in the search for a second generation HCV NS3 protease inhibitor. Bioorganic & Medicinal Chemistry Letters. 20(8). 2617–2621. 23 indexed citations

Tong, Xiao, Ashok Arasappan, Frank Bennett, et al.. (2010). Preclinical Characterization of the Antiviral Activity of SCH 900518 (Narlaprevir), a Novel Mechanism-Based Inhibitor of Hepatitis C Virus NS3 Protease. Antimicrobial Agents and Chemotherapy. 54(6). 2365–2370. 30 indexed citations

Velázquez, Francisco, Srikanth Venkatraman, Melissa L. Blackman, et al.. (2009). Design, Synthesis, and Evaluation of Oxygen-Containing Macrocyclic Peptidomimetics as Inhibitors of HCV NS3 Protease. Journal of Medicinal Chemistry. 52(3). 700–708. 10 indexed citations

Venkatraman, Srikanth, Wanli Wu, Latha G. Nair, et al.. (2009). Discovery of novel P3 sulfonamide-capped inhibitors of HCV NS3 protease. Inhibitors with improved cellular potencies. Bioorganic & Medicinal Chemistry. 17(13). 4486–4495. 7 indexed citations

Li, Cheng, Latha G. Nair, Fangbiao Li, et al.. (2007). Correlation between PAMPA permeability and cellular activities of hepatitis C virus protease inhibitors. Biochemical Pharmacology. 75(5). 1186–1197. 24 indexed citations

Miesel, Lynn, et al.. (2007). A high-throughput assay for the adenylation reaction of bacterial DNA ligase. Analytical Biochemistry. 366(1). 9–17. 12 indexed citations

Chen, Kevin X., Bancha Vibulbhan, Weiying Yang, et al.. (2007). Potent and selective small molecule NS3 serine protease inhibitors of Hepatitis C virus with dichlorocyclopropylproline as P2 residue. Bioorganic & Medicinal Chemistry. 16(4). 1874–1883. 5 indexed citations

Arasappan, Ashok, F. George Njoroge, Kevin X. Chen, et al.. (2006). P2–P4 Macrocyclic inhibitors of hepatitis C virus NS3-4A serine protease. Bioorganic & Medicinal Chemistry Letters. 16(15). 3960–3965. 16 indexed citations

10.

Venkatraman, Srikanth, F. George Njoroge, Wanli Wu, et al.. (2006). Novel inhibitors of hepatitis C NS3–NS4A serine protease derived from 2-aza-bicyclo[2.2.1]heptane-3-carboxylic acid. Bioorganic & Medicinal Chemistry Letters. 16(6). 1628–1632. 23 indexed citations

11.

Bogen, Stéphane, Sumei Ruan, Rong Liu, et al.. (2006). Depeptidization efforts on P3–P2′ α-ketoamide inhibitors of HCV NS3-4A serine protease: Effect on HCV replicon activity. Bioorganic & Medicinal Chemistry Letters. 16(6). 1621–1627. 12 indexed citations

12.

Liu, Rong, Karim Abid, John Pichardo, et al.. (2006). In vitro antiviral activity of SCH446211 (SCH6), a novel inhibitor of the hepatitis C virus NS3 serine protease. Journal of Antimicrobial Chemotherapy. 59(1). 51–58. 13 indexed citations

13.

Chen, Kevin X., F. George Njoroge, Bancha Vibulbhan, et al.. (2005). Proline‐Based Macrocyclic Inhibitors of the Hepatitis C Virus: Stereoselective Synthesis and Biological Activity. Angewandte Chemie International Edition. 44(43). 7024–7028. 10 indexed citations

14.

Bogen, Stéphane, Aparna Saksena, Ashok Arasappan, et al.. (2005). Hepatitis C virus NS3-4A serine protease inhibitors: Use of a P2–P1 cyclopropyl alanine combination for improved potency. Bioorganic & Medicinal Chemistry Letters. 15(20). 4515–4519. 16 indexed citations

15.

Chen, Kevin X., F. George Njoroge, Andrew Prongay, et al.. (2005). Synthesis and biological activity of macrocyclic inhibitors of hepatitis C virus (HCV) NS3 protease. Bioorganic & Medicinal Chemistry Letters. 15(20). 4475–4478. 15 indexed citations

16.

Bennett, Frank, Yi‐Tsung Liu, Anil K. Saksena, et al.. (2005). Novel inhibitors of the hepatitis C virus NS3 proteinase. Bioorganic & Medicinal Chemistry Letters. 15(19). 4275–4278. 2 indexed citations

17.

Chen, Kevin X., F. George Njoroge, Andrew Prongay, et al.. (2005). Synthesis and Biological Activity of Macrocyclic Inhibitors of Hepatitis C Virus (HCV) NS3 Protease.. ChemInform. 37(2). 1 indexed citations

18.

Arasappan, Ashok, F. George Njoroge, John Pichardo, et al.. (2004). Novel 2-oxoimidazolidine-4-carboxylic acid derivatives as Hepatitis C virus NS3-4A serine protease inhibitors: synthesis, activity, and X-ray crystal structure of an enzyme inhibitor complex. Bioorganic & Medicinal Chemistry Letters. 14(23). 5751–5755. 11 indexed citations

19.

Chu, Min, Ronald Mierzwa, Ling He, et al.. (1999). Isolation and structure of SCH 351633: a novel hepatitis C virus (HCV) NS3 protease inhibitor from the fungus Penicillium griseofulvum. Bioorganic & Medicinal Chemistry Letters. 9(14). 1949–1952. 14 indexed citations

20.

Butkiewicz, Nancy, Rumin Zhang, Ronald Jubin, et al.. (1996). Enhancement of Hepatitis C Virus NS3 Proteinase Activity by Association with NS4A-Specific Synthetic Peptides: Identification of Sequence and Critical Residues of NS4A for the Cofactor Activity. Virology. 225(2). 328–338. 53 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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