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N. Koizumi · SciRah

Researcher profile · Semantic Scholar

N. Koizumi

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N. Koizumi — researcher profile on SciRah

h-index: 31
Works: 131
Citations: 3,386

Most-cited papers

A Single Multilocus Sequence Typing (MLST) Scheme for Seven Pathogenic Leptospira Species
Siriphan Boonsilp, J. Thaipadungpanit, P. Amornchai, V. Wuthiekanun +17 more
2013PLoS Neglected Tropical Diseases194 citations Open access
Semantic Scholar
Outbreak of Leptospirosis after Flood, the Philippines, 2009
Al-shere T. Amilasan, M. Ujiie, Motoi Suzuki, Eumelia P. Salva +8 more
2012Emerging Infectious Diseases181 citations Open access
Semantic Scholar
Seroprevalence of leptospirosis and risk factor analysis in flood-prone rural areas in Lao PDR.
Leo Kawaguchi, B. Sengkeopraseuth, R. Tsuyuoka, N. Koizumi +4 more
2008American Journal of Tropical Medicine and Hygiene127 citations
Semantic Scholar
Diagnosis of acute leptospirosis
Takao Toyokawa, M. Ohnishi, N. Koizumi
2011Expert Review of Anti-Infective Therapy115 citations
Semantic Scholar
Serologic and molecular studies of Leptospira and leptospirosis among rats in the Philippines.
S. Y. A. Villanueva, H. Ezoe, R. A. Baterna, Y. Yanagihara +8 more
2010American Journal of Tropical Medicine and Hygiene101 citations Open access
Semantic Scholar
Human leptospirosis cases and the prevalence of rats harbouring Leptospira interrogans in urban areas of Tokyo, Japan.
N. Koizumi, M. Muto, T. Tanikawa, H. Mizutani +6 more
2009Journal of Medical Microbiology90 citations Open access
Semantic Scholar
Molecular and serological investigation of Leptospira and leptospirosis in dogs in Japan.
N. Koizumi, M. Muto, S. Akachi, S. Okano +5 more
2013Journal of Medical Microbiology83 citations Open access
Semantic Scholar
Carrier status of leptospirosis among cattle in Sri Lanka: a zoonotic threat to public health.
C. Gamage, N. Koizumi, A. Perera, M. Muto +9 more
2014Transboundary and Emerging Diseases64 citations
Semantic Scholar
Investigation of reservoir animals of Leptospira in the northern part of Miyazaki Prefecture.
N. Koizumi, M. Muto, Seigo Yamamoto, Y. Baba +8 more
2008Japanese journal of infectious diseases (Print)64 citations Open access
Semantic Scholar
Prevalence and Carrier Status of Leptospirosis in Smallholder Dairy Cattle and Peridomestic Rodents in Kandy, Sri Lanka
C. Gamage, N. Koizumi, M. Muto, C. Nwafor-Okoli +8 more
2011Vector Borne and Zoonotic Diseases61 citations Open access
Semantic Scholar
The hemolytic and cytolytic activities of Serratia marcescens phospholipase A (PhlA) depend on lysophospholipid production by PhlA
K. Shimuta, M. Ohnishi, S. Iyoda, N. Gotoh +2 more
2009BMC Microbiology61 citations Open access
Semantic Scholar
Detection of Streptobacillus spp. in feral rats by specific polymerase chain reaction
Masanobu Kimura, T. Tanikawa, Michio Suzuki, N. Koizumi +3 more
2008Microbiology and immunology46 citations Open access
Semantic Scholar
Detection of Anaplasma phagocytophilum from Wild Boars and Deer in Japan.
T. Masuzawa, Yoshiyuki Uchishima, T. Fukui, Y. Okamoto +3 more
2011Japanese journal of infectious diseases (Print)42 citations Open access
Semantic Scholar
Phylogenetic relationships of rat lungworm, Angiostrongylus cantonensis, isolated from different geographical regions revealed widespread multiple lineages.
Toshihiro Tokiwa, T. Harunari, T. Tanikawa, N. Komatsú +8 more
2012Parasitology international40 citations
Semantic Scholar
The mechanism of two-phase motility in the spirochete Leptospira: Swimming and crawling
Hajime Tahara, Kyosuke Takabe, Yuya Sasaki, K. Kasuga +3 more
2018Science Advances38 citations Open access
Semantic Scholar
Leptospiral outer membrane protein LMB216 is involved in enhancement of phagocytic uptake by macrophages
C. Toma, Gerald L. Murray, Toshitsugu Nohara, M. Mizuyama +3 more
2014Cellular Microbiology37 citations Open access
Semantic Scholar
Serological and genetic analysis of leptospirosis in patients with acute febrile illness in kandy, sri lanka.
N. Koizumi, C. Gamage, M. Muto, S. Kularatne +4 more
2009Japanese journal of infectious diseases (Print)35 citations
Semantic Scholar
Case report: Borrelia valaisiana infection in a Japanese man associated with traveling to foreign countries.
Kan Saito, Takafumi Ito, N. Asashima, M. Ohno +6 more
2007American Journal of Tropical Medicine and Hygiene34 citations
Semantic Scholar
Complete Genome Sequences of Low-Passage Virulent and High-Passage Avirulent Variants of Pathogenic Leptospira interrogans Serovar Manilae Strain UP-MMC-NIID, Originally Isolated from a Patient with Severe Leptospirosis, Determined Using PacBio Single-Molecule Real-Time Technology
K. Satou, Makiko Shimoji, Hinako Tamotsu, Ayaka Juan +13 more
2015Genome Announcements32 citations Open access
Semantic Scholar
Antibiotic-resistant Escherichia coli isolated from urban rodents in Hanoi, Vietnam
H. Hoang, N. Koizumi, T. T. H. Ung, T. Lê +9 more
2020Journal of Veterinary Medical Science30 citations Open access
Semantic Scholar
Diagnostic Accuracy of Recombinant Immunoglobulin-like Protein A-Based IgM ELISA for the Early Diagnosis of Leptospirosis in the Philippines
Emi Kitashoji, N. Koizumi, T. L. Lacuesta, D. Usuda +10 more
2015PLoS Neglected Tropical Diseases29 citations Open access
Semantic Scholar
Combined antibody and DNA detection for early diagnosis of leptospirosis after a disaster.
H. Iwasaki, Haorile Chagan-Yasutan, P. S. Leano, N. Koizumi +9 more
2016Diagnostic microbiology and infectious disease27 citations
Semantic Scholar
Multiple-locus variable-number tandem repeat analysis of Leptospira interrogans and Leptospira borgpetersenii isolated from small feral and wild mammals in East Asia.
N. Koizumi, H. Izumiya, Jung-Jung Mu, Z. Arent +10 more
2015Infection, Genetics and Evolution26 citations Open access
Semantic Scholar
Prevalence of Leptospira spp. in the kidneys of wild boars and deer in Japan.
N. Koizumi, M. Muto, A. Yamada, H. Watanabe
2009Journal of Veterinary Medical Science26 citations Open access
Semantic Scholar
Development of Immunochromatography-Based Methods for Detection of Leptospiral Lipopolysaccharide Antigen in Urine
Dian Widiyanti, N. Koizumi, T. Fukui, L. T. Muslich +6 more
2013Clinical and Vaccine Immunology25 citations Open access
Semantic Scholar
Molecular and serological epidemiology of Leptospira infection in cats in Okinawa Island, Japan
Tetsuya Kakita, Yumani Kuba, H. Kyan, S. Okano +2 more
2021Scientific Reports24 citations Open access
Semantic Scholar
Imported Leptospira licerasiae Infection in Traveler Returning to Japan from Brazil
M. Tsuboi, N. Koizumi, K. Hayakawa, S. Kanagawa +2 more
2017Emerging Infectious Diseases23 citations Open access
Semantic Scholar
Crawling Motility on the Host Tissue Surfaces Is Associated With the Pathogenicity of the Zoonotic Spirochete Leptospira
Jun Xu, N. Koizumi, Shuichi Nakamura
2020Frontiers in Microbiology22 citations Open access
Semantic Scholar
Comparison of Bacterial Burden and Cytokine Gene Expression in Golden Hamsters in Early Phase of Infection with Two Different Strains of Leptospira interrogans
Rie Fujita, N. Koizumi, H. Sugiyama, R. Tomizawa +2 more
2015PLoS ONE22 citations Open access
Semantic Scholar
Multipeptide precursor structure of acaloleptin A isoforms, antibacterial peptides from the Udo longicorn beetle, Acalolepta luxuriosa.
M. Imamura, Sugino Wada, Kenjiro Ueda, Ayaka Saito +3 more
2009Developmental and Comparative Immunology21 citations
Semantic Scholar
Multiple-locus variable-number tandem repeat analysis and clinical characterization of Leptospira interrogans canine isolates.
N. Koizumi, M. Muto, H. Izumiya, Motoi Suzuki +1 more
2015Journal of Medical Microbiology20 citations Open access
Semantic Scholar
Isolation and characterization of Leptospira spp. from raccoons in Japan.
N. Koizumi, Masaki Uchida, T. Makino, Toshitsugu Taguri +4 more
2009Journal of Veterinary Medical Science20 citations Open access
Semantic Scholar
Molecular epidemiology of Leptospira interrogans in Rattus norvegicus in Hanoi, Vietnam.
N. Koizumi, Kozue Miura, Sa-Nai Yu, Taichiro Takemura +11 more
2019Acta Tropica18 citations
Semantic Scholar
Laboratory diagnostic, epidemiological, and clinical characteristics of human leptospirosis in Okinawa Prefecture, Japan, 2003–2020
Tetsuya Kakita, S. Okano, H. Kyan, Masato Miyahira +3 more
2021PLoS Neglected Tropical Diseases17 citations Open access
Semantic Scholar
Serological investigation of Leptospira infection and its circulation in one intensive-type water buffalo farm in the Philippines.
M. Villanueva, C. Mingala, N. Gloriani, Y. Yanagihara +4 more
2016Japanese Journal of Veterinary Research16 citations
Semantic Scholar
Molecular and phenotypic characterization of Leptospira johnsonii sp. nov., Leptospira ellinghausenii sp. nov. and Leptospira ryugenii sp. nov. isolated from soil and water in Japan
T. Masuzawa, M. Saito, Ryo Nakao, Yasuhiko Nikaido +13 more
2019Microbiology and immunology15 citations Open access
Semantic Scholar
Leptospiral flagellar sheath protein FcpA interacts with FlaA2 and FlaB1 in Leptospira biflexa
Yuya Sasaki, A. Kawamoto, Hajime Tahara, K. Kasuga +4 more
2018PLoS ONE15 citations Open access
Semantic Scholar
Male-specific pulmonary hemorrhage and cytokine gene expression in golden hamster in early-phase Leptospira interrogans serovar Hebdomadis infection.
R. Tomizawa, H. Sugiyama, R. Sato, M. Ohnishi +1 more
2017Microbial Pathogenesis15 citations
Semantic Scholar
Molecular epidemiology of Leptospira spp. among wild mammals and a dog in Amami Oshima Island, Japan
So Shinya, Yukinori Muraoka, Daigo Negishi, N. Koizumi
2021PLoS ONE14 citations Open access
Semantic Scholar
An attenuated Shigella mutant lacking the RNA-binding protein Hfq provides cross-protection against Shigella strains of broad serotype
Jiro Mitobe, R. Sinha, Soma Mitra, D. Nag +4 more
2017PLoS Neglected Tropical Diseases14 citations Open access
Semantic Scholar
Distinct genetic characteristics of Sri Lankan Rattus and Bandicota (Murinae, Rodentia) inferred from mitochondrial and nuclear markers.
Shumpei P. Yasuda, C. Gamage, N. Koizumi, Sanae Nishio +7 more
2014Genes & Genetic Systems14 citations Open access
Semantic Scholar
Carrier Status of Leptospira spp. in Healthy Companion Dogs in Sri Lanka
T. Athapattu, R. Fernando, Roshan Abayawansha, P. Fernando +4 more
2022Vector Borne and Zoonotic Diseases13 citations
Semantic Scholar
Laboratory Diagnosis of Leptospirosis.
N. Koizumi
2020Methods in molecular biology13 citations
Semantic Scholar
Detection of pathogenic leptospires in the urine of domesticated elephants in Sri Lanka.
T. Athapattu, B. R. Fernando, N. Koizumi, C. Gamage
2019Acta Tropica13 citations
Semantic Scholar
Building prognostic models for adverse outcomes in a prospective cohort of hospitalised patients with acute leptospirosis infection in the Philippines
N. Lee, Emi Kitashoji, N. Koizumi, Talitha Lea V. Lacuesta +6 more
2017Transactions of the Royal Society of Tropical Medicine and Hygiene13 citations Open access
Semantic Scholar
Prevalence of leptospirosis in farm animals.
N. Koizumi, I. Yasutomi
2012Japanese Journal of Veterinary Research13 citations
Semantic Scholar
Antimicrobial resistance in Escherichia coli isolated from brown rats and house shrews in markets, Bogor, Indonesia
H. Hoang, N. Koizumi, H. Nuradji, Susanti +5 more
2021Journal of Veterinary Medical Science12 citations Open access
Semantic Scholar
Rat trade and leptospirosis: Molecular epidemiology of Leptospira species in rats exported from Cambodia to Vietnam.
N. Koizumi, M. Morita, V. Pheng, Chinda Wann +6 more
2021Transboundary and Emerging Diseases12 citations
Semantic Scholar
Leptospira spp.: Methods and Protocols
N. Koizumi, M. Picardeau
2020Methods in Molecular Biology12 citations
Semantic Scholar
Imported Flood-Related Leptospirosis From Palau: Awareness of Risk Factors Leads to Early Treatment.
T. Matono, S. Kutsuna, N. Koizumi, Y. Fujiya +5 more
2015Journal of Travel Medicine12 citations
Semantic Scholar

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M. Muto×11
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H. Watanabe×9
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