His main research concerns Virology, Hepatitis C virus, Hepatitis B virus, Nucleic acid sequence and Molecular biology. His Virology research incorporates themes from Antibody, Gene and Point mutation. His Hepatitis C virus study deals with the bigger picture of Virus.
His studies link Hepatitis C with Virus. His biological study focuses on Hepadnaviridae. He interconnects RNA, Hepatitis B and Transcription in the investigation of issues within HBeAg.
His primary areas of investigation include Virology, Virus, Hepatitis B virus, Hepatitis C virus and Molecular biology. His Virology research incorporates elements of Genotype, Antibody and Polymerase chain reaction. His Virus study is associated with Immunology.
His work on Hepadnaviridae and HBeAg as part of his general Hepatitis B virus study is frequently connected to Affinity chromatography, thereby bridging the divide between different branches of science. The various areas that Takeshi Tanaka examines in his Hepatitis C virus study include Viral hepatitis, Liver disease, Hepatitis C and Chronic liver disease. The study incorporates disciplines such as Gene, Mutant and Recombinant DNA in addition to Molecular biology.
Takeshi Tanaka spends much of his time researching Virology, Molecular biology, Virus, Genotype and Untranslated region. He integrates Virology with National standard in his study. His Molecular biology research is multidisciplinary, relying on both RNA, Mutant, DNA, Open reading frame and Hepatitis B virus.
His work deals with themes such as Epitope and Hepatitis B, which intersect with Hepatitis B virus. He specializes in Virus, namely Hepatitis C virus. In his study, which falls under the umbrella issue of Genotype, Blood serum is strongly linked to Antibody.
His scientific interests lie mostly in Molecular biology, Virology, Virus, DNA and Restriction enzyme. Takeshi Tanaka has researched Molecular biology in several fields, including Polymerase chain reaction and Hepatitis B virus. His Polymerase chain reaction research includes elements of Agarose gel electrophoresis, Bone marrow and Agarose.
His Hepatitis B virus research integrates issues from Epitope, Antibody and Genotype. His Antibody study combines topics in areas such as Hepatitis B and Hepadnaviridae. His work carried out in the field of Gel electrophoresis brings together such families of science as DNA virus, Double stranded, Primer extension and EcoRI.
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Typing hepatitis C virus by polymerase chain reaction with type-specific primers: application to clinical surveys and tracing infectious sources.
Hiroaki Okamoto;Yasushi Sugiyama;Shunichi Okada;Kiyohiko Kurai.
Journal of General Virology (1992)
Full-length sequence of a hepatitis C virus genome having poor homology to reported isolates: comparative study of four distinct genotypes.
Hiroaki Okamoto;Kiyohiko Kurai;Shun-Ichi Okada;Kayoko Yamamoto.
Virology (1992)
Detection of hepatitis C virus RNA by a two-stage polymerase chain reaction with two pairs of primers deduced from the 5'-noncoding region.
H Okamoto;S Okada;Y Sugiyama;T Tanaka.
The Japanese journal of experimental medicine (1990)
Hepatitis B virus with mutations in the core promoter for an e antigen-negative phenotype in carriers with antibody to e antigen.
H Okamoto;F Tsuda;Y Akahane;Y Sugai.
Journal of Virology (1994)
The 5'-terminal sequence of the hepatitis C virus genome.
Okamoto H;Okada S;Sugiyama Y;Yotsumoto S.
The Japanese journal of experimental medicine (1990)
Hepatitis B viruses with precore region defects prevail in persistently infected hosts along with seroconversion to the antibody against e antigen.
H Okamoto;S Yotsumoto;Y Akahane;T Yamanaka.
Journal of Virology (1990)
Hepatitis C virus infection in medical personnel after needlestick accident
Takehiro Mitsui;Keiko Iwano;Kazuo Masuko;Chikao Yamazaki.
Hepatology (1992)
Genetic drift of hepatitis C virus during an 8.2-year infection in a chimpanzee: Variability and stability
Hiroaki Okamoto;Maki Kojima;Shun-Ichi Okada;Hiroshi Yoshizawa.
Virology (1992)
Hepatitis B virus strains with mutations in the core promoter in patients with fulminant hepatitis.
Shunichi Sato;Kazuyuki Suzuki;Yoshihiro Akahane;Koichi Akamatsu.
Annals of Internal Medicine (1995)
Point mutation in the S gene of hepatitis B virus for a d/y or w/r subtypic change in two blood donors carrying a surface antigen of compound subtype adyr or adwr.
H Okamoto;M Imai;F Tsuda;T Tanaka.
Journal of Virology (1987)
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