Microbiology and Immunology

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Detection and Genetical Characterization of Shiga Toxin‐Producing Escherichia coli from Wild Deer
Microbiology and Immunology - Tập 42 Số 12 - Trang 815-822 - 1998
Hiroshi Asakura, Sou‐ichi Makino, Toshikazu Shirahata, Teizo Tsukamoto, Hisao Kurazono, Tetsuya Ikeda, Kouichi Takeshi
AbstractShiga toxin (Stx)‐producing Escherichia coli (STEC) strains isolated from wild deer in Japan were examined. A total of 43 fecal samples were collected 4 times from 4 different sites around Obihiro City, Hokkaido, Japan, in June and July 1997. Seven STEC strains were isolated by PCR screening, all of them were confirmed by ELISA an...... hiện toàn bộ
Rapid detection and quantification of Ebola Zaire virus by one‐step real‐time quantitative reverse transcription‐polymerase chain reaction
Microbiology and Immunology - Tập 61 Số 3-4 - Trang 130-137 - 2017
Young‐Tae Ro, Anysha Ticer, Ricardo Carrion, Jean L. Patterson
ABSTRACTGiven that Ebola virus causes severe hemorrhagic fever in humans with mortality rates as high as 90%, rapid and accurate detection of this virus is essential both for controlling infection and preventing further transmission. Here, a one‐step qRT‐PCR assay for rapid and quantitative detection of an Ebola Zaire strain using ... hiện toàn bộ
Immunogenicity of the Shigella flexneri Serotype Y (SFL124) Vaccine Strain Expressing Cloned Glucosyl Transferase Gene of Converting Bacteriophage SfX
Microbiology and Immunology - Tập 39 Số 7 - Trang 467-472 - 1995
Pham thi Huan, Rona Taylor, Alf A. Lindberg, Naresh K. Verma
AbstractThe glucosyl transferase gene (gtr) from bacteriophage phage X (SfX) caused partial conversion of serotype Y (group antigen 3, 4) to X (group antigen 7, 8) when introduced into a candidate vaccine strain of Shigella flexneri serotype Y (SFL124). The gtr gene caused conversion o...... hiện toàn bộ
Genotypic Analysis of the 5′‐Untranslated Region of a Pestivirus Strain Isolated from Human Leucocytes
Microbiology and Immunology - Tập 41 Số 10 - Trang 829-834 - 1997
Massimo Giangaspero, Ryô Harasawa, A. Verhulst
AbstractThe 5′‐untranslated genomic region of the pestivirus strain Europa, originated in human leucocytes and previously identified as bovine diarrhea virus (BVDV), was amplified by reverse transcription‐PCR and sequenced. Analyses based on primary nucleotide sequence homology and on secondary palindromic sequence structures characteristic to genotypes revealed th...... hiện toàn bộ
Characterization of Bacterium Isolated from the Sediment at Coastal Area of Omura Bay in Japan and Several Biological Activities of Pigment Produced by This Isolate
Microbiology and Immunology - Tập 49 Số 5 - Trang 407-415 - 2005
Takuji Nakashima, Maki Kurachi, Munehiro Nakata, Kenichi Yamaguchi, Tatsuya Oda
AbstractRecently we discovered a bacterial strain (MS‐02–063) that produces large amounts of red pigment from coastal area of Nagasaki Prefecture, Japan. Comparative 16S rDNA gene sequencing analysis revealed that strain MS‐02–063 was phylogenetically closely related to γ‐proteobacterium Hahella sp. MBIC 3957 that produces prodigiosin. Ho...... hiện toàn bộ
Anti‐quorum sensing activity of Psidium guajava L. flavonoids against Chromobacterium violaceum and Pseudomonas aeruginosa PAO1
Microbiology and Immunology - Tập 58 Số 5 - Trang 286-293 - 2014
H.S. Vasavi, A. B. Arun, P. D. Rekha
ABSTRACTPsidium guajava L., which has been used traditionally as a medicinal plant, was explored for anti‐quorum sensing (QS) activity. The anti‐QS activity of the flavonoid (FL) fraction of P. guajava leaves was determined using a biosensor bioassay with Chromobacterium viol...... hiện toàn bộ
Mechanism of Selective Inhibition of Respiratory Syncytial Virus by a Benzodithiin Compound (RD3–0028)
Microbiology and Immunology - Tập 45 Số 7 - Trang 531-537 - 2001
Kenji Sudo, Kenji Konno, Wataru Watanabe, Shirô Shigeta, Tomoyuki Yokota
AbstractRD3–0028, a compound with a benzodithiin structure, was found to be a potent inhibitor of respiratory syncytial virus (RSV) replication. Its action is specific; no activity is seen against influenza A virus, measles virus, herpes simplex virus type 1 or 2, or human cytomegalovirus. A time‐dependent drug addition experiment indicated that the antiviral activ...... hiện toàn bộ
Association of Rabies Virus Nominal Phosphoprotein (P) with Viral Nucleocapsid (NC) Is Enhanced by Phosphorylation of the Viral Nucleoprotein (N)
Microbiology and Immunology - Tập 48 Số 5 - Trang 399-409 - 2004
Harufusa Toriumi, Akihiko Kawai
AbstractWe investigated possible role(s) of N protein phosphorylation in the rabies virus replication process. A large amount of P proteins are associated with the viral nucleocapsid (NC) in the infected cell, the amount which was greatly decreased by phosphatase‐treatment of the isolated NC, indicating that the phosphate group of N and/or P proteins is essential f...... hiện toàn bộ
DNA from Bacteria, but Not from Vertebrates, Induces Interferons, Activates Natural Killer Cells and Inhibits Tumor Growth
Microbiology and Immunology - Tập 36 Số 9 - Trang 983-997 - 1992
Saburo Yamamoto, Toshiko Yamamoto, Shizuo Shimada, Etsuro Kuramoto, Osamu Yano, Tetsuro Kataoka, Tohru Tokunaga
AbstractThe nucleic acid fraction from cells of 6 species of bacterium and 2 kinds of vertebrate, calf and salmon, was extracted and purified by the same procedures as described previously. When the spleen cells from BALB/c mice were incubated with the nucleic acid fraction from either of the bacteria, natural killer (NK) activity of the cells was remarkably elevat...... hiện toàn bộ
Antibacterial Activity of Hydrolyzable Tannins Derived from Medicinal Plants against Helicobacter pylori
Microbiology and Immunology - Tập 48 Số 4 - Trang 251-261 - 2004
Keiji Funatogawa, Shunji Hayashi, Hirofumi Shimomura, Takashi Yoshida, Tsutomu Hatano, Hideyuki Ito, Yoshikazu Hirai
AbstractHelicobacter pylori is a major etiological agent in gastroduodenal disorders. In this study, we isolated 36 polyphenols and 4 terpenoids from medicinal plants, and investigated their antibacterial activity against H. pylori in vitro. All hydrolyzable tannins tested demonstrated promising antibacterial ac...... hiện toàn bộ
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