John Okombo

1.7k total citations
43 papers, 924 citations indexed

About

John Okombo is a scholar working on Public Health, Environmental and Occupational Health, Computational Theory and Mathematics and Infectious Diseases. According to data from OpenAlex, John Okombo has authored 43 papers receiving a total of 924 indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Public Health, Environmental and Occupational Health, 12 papers in Computational Theory and Mathematics and 11 papers in Infectious Diseases. Recurrent topics in John Okombo's work include Malaria Research and Control (37 papers), Computational Drug Discovery Methods (12 papers) and Mosquito-borne diseases and control (12 papers). John Okombo is often cited by papers focused on Malaria Research and Control (37 papers), Computational Drug Discovery Methods (12 papers) and Mosquito-borne diseases and control (12 papers). John Okombo collaborates with scholars based in South Africa, United Kingdom and United States. John Okombo's co-authors include Kelly Chibale, Alexis Nzila, David A. Fidock, Kelly Chibale, Lynette Isabella Ochola‐Oyier, Godwin Akpeko Dziwornu, Leah Mwai, Eric O. Ohuma, Satish K. Dhingra and Steven M. Kiara and has published in prestigious journals such as Nature, Nature Communications and Accounts of Chemical Research.

In The Last Decade

John Okombo

41 papers receiving 917 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
John Okombo South Africa	19	587	211	205	180	154	43	924
Prakasha Kempaiah United States	18	494 0.8×	185 0.9×	271 1.3×	257 1.4×	135 0.9×	63	1.2k
Kathryn J. Wicht South Africa	18	638 1.1×	247 1.2×	331 1.6×	160 0.9×	305 2.0×	32	1.1k
Sarah Arbe‐Barnes Switzerland	10	571 1.0×	251 1.2×	177 0.9×	105 0.6×	162 1.1×	16	880
Selina Bopp United States	16	822 1.4×	213 1.0×	303 1.5×	104 0.6×	122 0.8×	23	1.2k
Cristina de Cózar Spain	6	495 0.8×	297 1.4×	279 1.4×	139 0.8×	164 1.1×	8	816
Philip J. Rosenthal United States	11	542 0.9×	138 0.7×	162 0.8×	96 0.5×	228 1.5×	18	878
Jennifer Legac United States	21	756 1.3×	307 1.5×	306 1.5×	134 0.7×	244 1.6×	34	1.3k
Nobutaka Kato United States	17	603 1.0×	254 1.2×	462 2.3×	138 0.8×	260 1.7×	25	1.2k
Victoria Barton United Kingdom	14	738 1.3×	330 1.6×	358 1.7×	224 1.2×	316 2.1×	16	1.2k
Laura M. Sanz Spain	13	769 1.3×	415 2.0×	420 2.0×	210 1.2×	254 1.6×	21	1.3k

Countries citing papers authored by John Okombo

Since Specialization

Citations

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

Fields of papers citing papers by John Okombo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of John Okombo

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

Padalino, Gilda, John Okombo, Tomas Yeo, et al.. (2025). Quinoxaline-based anti-schistosomal compounds have potent anti-plasmodial activity. PLoS Pathogens. 21(2). e1012216–e1012216.

Dhingra, Satish K., Jennifer L. Small-Saunders, Gabriel W. Rangel, et al.. (2023). Additional PfCRT mutations driven by selective pressure for improved fitness can result in the loss of piperaquine resistance and altered Plasmodium falciparum physiology. mBio. 15(1). e0183223–e0183223. 6 indexed citations

Okombo, John, Sachel Mok, Tomas Yeo, et al.. (2022). Piperaquine-resistant PfCRT mutations differentially impact drug transport, hemoglobin catabolism and parasite physiology in Plasmodium falciparum asexual blood stages. PLoS Pathogens. 18(10). e1010926–e1010926. 12 indexed citations

Okombo, John, Mariko Kanai, Ioanna Deni, & David A. Fidock. (2021). Genomic and Genetic Approaches to Studying Antimalarial Drug Resistance and Plasmodium Biology. Trends in Parasitology. 37(6). 476–492. 12 indexed citations

Harding, Clare R., Saima Sidik, Boryana Petrova, et al.. (2020). Genetic screens reveal a central role for heme metabolism in artemisinin susceptibility. Nature Communications. 11(1). 4813–4813. 43 indexed citations

Singh, Kawaljit, et al.. (2020). Structure-activity relationship analyses of fusidic acid derivatives highlight crucial role of the C-21 carboxylic acid moiety to its anti-mycobacterial activity. Bioorganic & Medicinal Chemistry. 28(13). 115530–115530. 10 indexed citations

Kim, Jonathan, Yong Zi Tan, Kathryn J. Wicht, et al.. (2019). Structure and drug resistance of the Plasmodium falciparum transporter PfCRT. Nature. 576(7786). 315–320. 117 indexed citations

Joshi, Mukesh C., John Okombo, Dale Taylor, et al.. (2017). 4-Aminoquinoline Antimalarials Containing a Benzylmethylpyridylmethylamine Group Are Active against Drug Resistant Plasmodium falciparum and Exhibit Oral Activity in Mice. Journal of Medicinal Chemistry. 60(24). 10245–10256. 19 indexed citations

Dhingra, Satish K., Jill M. Combrinck, Tomas Yeo, et al.. (2017). A Variant PfCRT Isoform Can Contribute to Plasmodium falciparum Resistance to the First-Line Partner Drug Piperaquine. mBio. 8(3). 96 indexed citations

10.

Espinoza‐Moraga, Marlene, Kawaljit Singh, Mathew Njoroge, et al.. (2016). Synthesis and biological characterisation of ester and amide derivatives of fusidic acid as antiplasmodial agents. Bioorganic & Medicinal Chemistry Letters. 27(3). 658–661. 21 indexed citations

11.

Ochola‐Oyier, Lynette Isabella, John Okombo, Kevin K. A. Tetteh, et al.. (2016). Comparison of allele frequencies of Plasmodium falciparum merozoite antigens in malaria infections sampled in different years in a Kenyan population. Malaria Journal. 15(1). 261–261. 7 indexed citations

12.

Okombo, John, et al.. (2015). Chloroquine-containing compounds: a patent review (2010 – 2014). Expert Opinion on Therapeutic Patents. 25(9). 1003–1024. 27 indexed citations

13.

Okombo, John, Alice Kamau, Kevin Marsh, Colin J. Sutherland, & Lynette Isabella Ochola‐Oyier. (2014). Temporal trends in prevalence of Plasmodium falciparum drug resistance alleles over two decades of changing antimalarial policy in coastal Kenya. International Journal for Parasitology Drugs and Drug Resistance. 4(3). 152–163. 36 indexed citations

14.

Okombo, John, Abdirahman I. Abdi, Steven M. Kiara, et al.. (2013). Repeat Polymorphisms in the Low-Complexity Regions of Plasmodium falciparum ABC Transporters and Associations with In Vitro Antimalarial Responses. Antimicrobial Agents and Chemotherapy. 57(12). 6196–6204. 20 indexed citations

15.

Nzila, Alexis, John Okombo, & Anne M. Molloy. (2013). Impact of folate supplementation on the efficacy of sulfadoxine/pyrimethamine in preventing malaria in pregnancy: the potential of 5-methyl-tetrahydrofolate. Journal of Antimicrobial Chemotherapy. 69(2). 323–330. 19 indexed citations

16.

Okombo, John, Steven M. Kiara, Abdirahman I. Abdi, et al.. (2012). Antimalarial activity of isoquine against Kenyan Plasmodium falciparum clinical isolates and association with polymorphisms in pfcrt and pfmdr1 genes. Journal of Antimicrobial Chemotherapy. 68(4). 786–788. 6 indexed citations

17.

Nzila, Alexis, John Okombo, Eric O. Ohuma, & Assad Al-Thukair. (2012). Update on the in vivo tolerance and in vitro reduced susceptibility to the antimalarial lumefantrine. Journal of Antimicrobial Chemotherapy. 67(10). 2309–2315. 12 indexed citations

18.

Okombo, John, Eric O. Ohuma, Stéphane Picot, & Alexis Nzila. (2011). Update on genetic markers of quinine resistance in Plasmodium falciparum. Molecular and Biochemical Parasitology. 177(2). 77–82. 22 indexed citations

19.

Okombo, John, Steven M. Kiara, Josea Rono, et al.. (2010). In Vitro Activities of Quinine and Other Antimalarials and pfnhe Polymorphisms in Plasmodium Isolates from Kenya. Antimicrobial Agents and Chemotherapy. 54(8). 3302–3307. 33 indexed citations

20.

Nzila, Alexis, et al.. (2010). Anticancer agents against malaria: time to revisit?. Trends in Parasitology. 26(3). 125–129. 33 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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