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| 1 | Classifying genotype F of hepatitis B virus into F1 and F2 subtypes显示文摘AIM: To explore the propriety of providing hepatitis B virus(HBV) genotypes F and H with two distinct genotypes.METHODS: Eleven HBV isolates of genotype F (HBV/F)were recovered from patients living in San Francisco,Japan, Panama, and Venezuela, and their full-length sequences were determined. Phylogenetic analysis was carried out among them along with HBV isolates previously reported.RESULTS: Seven of them clustered with reported HBV/F isolates in the phylogenetic tree constructed on the entire genomic sequence. The remaining four flocked on another branch along with three HBV isolates formerly reported as genotype H. These seven HBV isolates, including the four in this study and the three reported, had a sequence divergence of 7.3-9.5% from the other HBV/F isolates,and differed by > 13.7% from HBV isolates of the other six genotypes (A-E and G). Based on a marked genomic divergence, falling just short of >8% separating the seven genotypes, these seven HBV/F isolates were classified into F2 subtype and the former seven into F1 subtype provisionally. In a pairwise comparison of the S-gene sequences among the 7 HBV/F2 isolates and against 47HBV/F1 isolates as well as 136 representing the other six genotypes (A-E and G), two clusters separated by distinct genetic distances emerged.CONCLUSION: Based on these analyses, classifying HBV/F isolates into two subtypes (F1 and F2) would be more appropriate than providing them with two distinct genotypes (F and H). | Hideaki Kato Kei Fujiwara Robert G. Gish Hiroshi Sakugawa Hiroshi Yoshizawa Fuminaka Sugauchi Etsuro Orito Ryuzo Ueda Yasuhito Tanaka Takanobu Kato Yuzo Miyakawa Masashi Mizokami | 2005 | World Journal of Gastroenterology2005，11，40： | 6 |
| 2 | Distribution of HBV genotypes among HBV carriers in Benin:phylogenetic analysis and virological characteristics of HBV genotype E显示文摘AIM: To determine the distribution of Hepatitis B virus (HBV) genotypes in Benin, and to clarify the virological characteristics of the dominant genotype.METHODS: Among 500 blood donors in Benin, 21 HBsAg-positive donors were enrolled in the study. HBV genotypes were determined by enzyme immunoassay and restriction fragment length polymorphism. Complete genome sequences were determined by PCR and direct sequencing.RESULTS: HBV genotype E (HBV/E) was detected in 20/21 (95.2%), and HBV/A in 1/21 (4.8%). From the age-specific prevalence of HBeAg to anti-HBe seroconversion (SC) in 19 HBV/E subjects, SC was estimated to occur frequently in late teens in HBV/E.The comparison of four complete HBV/E genomes from HBeAg-positive subjects in this study and five HBV/E sequences recruited from the database revealed that HBV/E was distributed throughout West Africa with very low genetic divers ity (nucleotide homology 96.7-99.2%).Based on the sequences in the basic core promoter (BCP)to precore region of the nine HBV/E isolates compared to those of the other genotypes, a nucleotide substitution in the BCP, G1757A, was observed in HBV/E.CONCLUSION: HBV/E is predominant in the Republic of Benin, and SC is estimated to occur in late teens in HBV/E. The specific nucleotide substitution G1757A in BCP, which might influence the virological characteristics,is observed in HBV/E. | Kei Fujiwara Yasuhito Tanaka Etsuro Orito Tomoyoshi Ohno Takanobu Kato Kanji Sugihara Izumi Hasegawa Mayumi Sakurai Kiyoaki Ito Atsushi Ozasa Yuko Sakamoto Isao Arita Ahmed El-Gohary Agossou Benoit Sophie I Ogoundele-Akplogan Namiko Yoshihara Ryuzo Ueda Masashi Mizokami | 2005 | World Journal of Gastroenterology2005，11，41： | 3 |
| 3 | Genotype and phylogenetic characterization of hepatitis B virus among multi-ethnic cohort in Hawaii显示文摘AIM: Hepatitis B virus (HBV) genomes in carriers from Hawaii have not been evaluated previously. The aim of thepresent study was to evaluate the distribution of HBV genotypes and their clinical relevance in Hawaii.METHODS: Genotyping of HBV among 61 multi-ethnicc arriers in Hawaii was performed by genetic methods.Three complete genomes and 61 core promoter/precore regions of HBV were sequenced directly.RESULTS: HBV genotype distribution among the 61 carderswas 23.0% for genotype A, 14.7% for genotype B and 62.3% for genotype C. Genotypes A, B and C were obtained from the carriers whose ethnicities were Filipino and Caucasian,Southeast Asian, and various Asian and Micronesian,respectively. All cases of genotype B were composed of recombinant strains with genotype C in the precore plus core region named genotype Ba. HBeAg was detected more frequently in genotype C than in genotype B (68.4% vs 33.3%, P<0.05) and basal core promoter (BCP) mutation (T1762/A1764) was more frequently found in genotype C than in genotype B. Twelve of the 38 genotype C strains possessed C at nucleotide (nt) position 1858 (C-1858).However there was no significant difference in clinical characteristics between C-1858 and T-1858 variants. Based on complete genome sequences, phylogenetic analysis revealed one patient of Micronesian ethnicity as having C1858 clustered with two isolates from Polynesia with T-1858.In addition, two strains from Asian ethnidties were clustered with known isolates in carriers from Southeast Asia.CONCLUSION: Genotypes A, B and C are predominant types among multi-ethnic HBV carriers in Hawaii, and distribution of HBV genotypes is dependent on the ethnic background of the carriers in Hawaii. | Mayumi Sakurai Fuminaka Sugauchi Naoky Tsai Seiji Suzuki Izumi Hasegawa Kei Fujiwara Etsuro Orito Ryuzo Ueda Masashi Mizokami | 2004 | World Journal of Gastroenterology2004，10，15： | 2 |
| 4 | Reactivation of hepatitis B virus following systemic chemotherapy for malignant lymphoma显示文摘 | Shigeru Kusumoto Yasuhito Tanaka Masashi Mizokami Ryuzo Ueda | 2009 | International Journal of Hematology2009，，1： | 2 |
| 5 | Color and gloss evaluation of titanium dioxide coating for acrylic resin denture base显示文摘 | KAZUNARI MORI DDS MASASHI TSUJI DDS TAKAYUKI UEDA DDS | 2015 | Journal of prosthodontic research2015，59，： | 1 |
| 6 | Epidemiologic and virologic characteristics of hepatitis B virus genotype B having the recombination with genotype C显示文摘 | Fuminaka Sugauchi Etsuro Orito Takafumi Ichida Hideaki Kato Hiroshi Sakugawa Shinichi Kakumu Takafumi Ishida Anuchit Chutaputti Ching-Ling Lai Robert G. Gish Ryuzo Ueda Yuzo Miyakawa Masashi Mizokami | 2003 | Gastroenterology2003，，4： | 1 |
| 7 | Purification and some properties of glutaminase from Pseudomonas nitroreducens IFO 12694 显示文摘 | Takashi Tachiki Takeshi Yamada Masashi Ueda | 1996 | Bioscience Biotechnology and Biochemistry1996，60，7： | 1 |
| 8 | Expression of LYVE-1 in sinusoidal endothelium is reduced in chronically inflamed human livers显示文摘 | Junko Arimoto Yoshihiro Ikura Takehisa Suekane Masashi Nakagawa Chizuko Kitabayashi Yoko Iwasa Kenichi Sugioka Takahiko Naruko Tetsuo Arakawa Makiko Ueda | 2010 | Journal of Gastroenterology2010，，3： | 1 |
| 9 | Optimization of Physical Parameters of Discrete Element Method for Blast Furnace and Its Application to the Analysis on Solid Motion Around Raceway 显示文摘 | Natsui Shungo Ueda Shigeru Oikawa Masashi | 2009 | ISIJ International2009，49，9： | 1 |
| 10 | The first report of successful nasogastric Coca-Cola lavage treatment for bitter persimmon phytobezoars in Japan显示文摘 | Hideaki Kato Makoto Nakamura Etsuro Orito Ryuzo Ueda Masashi Mizokami | 2003 | The American Journal of Gastroenterology2003，，7： | 1 |
| 11 | Frequent inactivation of RASSF1A , BLU , and SEMA3B on 3p21.3 by promoter hypermethylation and allele loss in non-small cell lung cancer显示文摘 | Masao Ito Genshi Ito Masashi Kondo Mika Uchiyama Takayuki Fukui Shoichi Mori Hiromu Yoshioka Yuichi Ueda Kaoru Shimokata Yoshitaka Sekido | 2004 | Cancer Letters2004，，： | 1 |
| 12 | Absence of asymptomatic unruptured renal artery pseudoaneurysm on contrast-enhanced computed tomography after robot-assisted partial nephrectomy without parenchymal renorrhaphy显示文摘Objective:To assess the incidence of asymptomatic unruptured renal artery pseudoaneurysm(RAP)on contrast-enhanced computed tomography(CE-CT)after robot-assisted partial nephrectomy(RAPN)without parenchymal renorrhaphy.Methods:From May 2016 to December 2017,78 patients underwent RAPN for renal tumors.Inner suture was performed in the opened collecting system or renal sinus,whereas parenchymal renorrhaphy was not.For hemostasis,the soft coagulation system was used,and absorbable hemostats were placed on the resection bed.CE-CT was carried out within 7 days after surgery.Data on these patients were prospectively collected.A single radiologist determined the diagnosis of RAP.Results:Median(range)data were as follows:Patient age,65(19-82)years;radiographic tumor size,30(12-95)mm;operating time,166(102-294)min;warm ischemic time,16(7-67)min;and blood loss,15(0-4450)mL.One patient(1.6%)required a perioperative blood transfusion.No patient required conversion to open surgery or nephrectomy.CE-CT was carried out at median 6(3-7)days after surgery.CE-CT showed no RAP development in all 61 patients.Urinary leakage was not observed.One patient had acute cholecystitis,a postoperative complication classified as Clavien-Dindo grade higher than 3,which was treated with cholecystectomy.Positive surgical margin was identified in four patients(6.6%).Conclusion:RAPN using soft coagulation and absorbable hemostats without renorrhaphy appears to be feasible and safe.Our technique could eliminate the risk of RAP. | Yoichiro Tohi Shiori Murata Noriyuki Makita Issei Suzuki Masashi Kubota Yoshio Sugino Koji Inoue Hiroyuki Ueda Mutsushi Kawakita | 2020 | Asian Journal of Urology2020，7，1： | 1 |
| 13 | A high- throughput pipelined architecture for blind adaptive equalizer with minimum latency显示文摘 | Masashi Mizuno Kenji Ueda James Okello | 2002 | IEICE2002，2，： | 1 |
| 14 | Successful removal of solitary intramedullary spinal cord metastasis from colon cancer显示文摘 | Masahiro Ogino Ryo Ueda Masashi Nakatsukasa Ikuro Murase | 2002 | Clinical Neurology and Neurosurgery2002，，2： | 1 |
| 15 | Specific mutations in enhancer II/core promoter of hepatitis B virus subgenotypes C1/C2 increase the risk of hepatocellular carcinoma显示文摘 | Yasuhito Tanaka Motokazu Mukaide Etsuro Orito Man-Fung Yuen Kiyoaki Ito Fuat Kurbanov Fuminaka Sugauchi Yasuhiro Asahina Namiki Izumi Michio Kato Ching-Lung Lai Ryuzo Ueda Masashi Mizokami | 2006 | Journal of Hepatology2006，，5： | 1 |
| 16 | Reactivation of hepatitis B virus in a patient with adult T ‐cell leukemia–lymphoma receiving the anti‐ CC chemokine receptor 4 antibody mogamulizumab显示文摘 | Nobuaki Nakano Shigeru Kusumoto Yasuhito Tanaka Takashi Ishida Shogo Takeuchi Yoshifusa Takatsuka Shiro Akinaga Masashi Mizokami Ryuzo Ueda Atae Utsunomiya | 2014 | Hepatol Res2014，，3： | 1 |
| 17 | Reactivation of hepatitis B virus in HBsAg-negative patients with multiple myeloma: two case reports显示文摘 | Tatsuya Yoshida Shigeru Kusumoto Atsushi Inagaki Fumiko Mori Asahi Ito Masaki Ri Takashi Ishida Hirokazu Komatsu Shinsuke Iida Fuminaka Sugauchi Yasuhito Tanaka Masashi Mizokami Ryuzo Ueda | 2010 | International Journal of Hematology2010，，5： | 1 |
| 18 | The Lowest Surface Free Energy Based on-CF3 Alignment显示文摘 | Nishino T Masashi Meguro Yasukiyo Ueda | | 0，，： | 1 |
| 19 | Water‐soluble argatroban for antithrombogenic surface coating of tissue‐engineered cardiovascular tissues显示文摘 | Yasuhide Nakayama Saori Yamaoka Masashi Yamanami Megumi Fujiwara Masami Uechi Keiichi Takamizawa Hatsue Ishibashi‐Ueda Marie Nakamichi Kingo Uchida Taiji Watanabe Keiichi Kanda Hitoshi Yaku | 2011 | J Biomed Mater Res2011，，2： | 1 |
| 20 | Reactivation of hepatitis B virus following systemic chemotherapy for malignant lymphoma显示文摘 | Shigeru Kusumoto Yasuhito Tanaka Masashi Mizokami Ryuzo Ueda | 2009 | International Journal of Hematology2009，，1： | 1 |
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