- 著者
- Gaowa Wulantuya Xuhong Yin Minzhi Cao Shengchun Guo Chunlian Ding Lu Yuhua Luo Jianchang Hiroki Kawabata Shuji Ando Hongru Su Masahiko Shimada Naoya Takamoto Yuko Shimamura Shuichi Masuda Norio Ohashi
- 出版者
- National Institute of Infectious Diseases, Japanese Journal of Infectious Diseases Editorial Committee
- 雑誌
- Japanese Journal of Infectious Diseases (ISSN:13446304)
- 巻号頁・発行日
- pp.JJID.2017.450, (Released:2018-02-28)
- 参考文献数
- 15
- 被引用文献数
- 7
Anaplasma phagocytophilum is an obligate intracellular bacterium and causes febrile illness in humans and livestock. A 49-year-old woman was suffering from feverish symptom, fatigue, arthralgia, general body pain, and anorexia for 2 weeks. Later, she visited Bayan Nur Centers for Disease Control and Prevention Hospital in Inner Mongolia, China. Molecular-based diagnostic analysis of the patient’s blood revealed that A. phagocytophilum p44 DNA was positive, but Brucella omp31, spotted fever group Rickettsia gltA, Orientia tsutsugamushi 16S rDNA, and Ehrlichia p28 were negative. The amino acid sequences of 9 A. phagocytophilum p44 clones obtained from the patient shared 44-100% similarity among them and closely related to those of previously-identified p44 clones from canis familiaris (accession no. KJV64194) and from Ixodes persulcatus tick (no. BAN28309). Serological tests using the patient’s serum showed that IgM and IgG titers to A. phagocytophilum antigens were 160 and 20, respectively, determined by indirect immunofluorescence assay and the reaction to recombinant P44 proteins (rP44-1, rP44-18ES, and/or rP44-47) were confirmed by Western blot analysis. Thus, the results obtained in this study strongly suggests that the patient was infected with A. phagocytophilum. To our knowledge, this is a first case of human anaplasomosis infection in Inner Mongolia autonomous region.
- 著者
- Shuichi Masuda Shoko Uchida Yumeko Terashima Hiroko Kuramoto Mika Serizawa Yuya Deguchi Kazuhiro Yanai Chitose Sugiyama Itaro Oguni Naohide Kinae
- 出版者
- 公益社団法人 日本薬学会
- 雑誌
- Journal of Health Science (ISSN:13449702)
- 巻号頁・発行日
- vol.52, no.3, pp.211-220, 2006 (Released:2006-06-01)
- 参考文献数
- 32
- 被引用文献数
- 7 16
The effects of repeatedly brewed green tea infusion on the formation of nitrosamine in vitro and in vivo, and on cancer mortality were examined. The first and second brews of green tea infusion inhibited the formation of nitrosomorpholine in the presence of morpholine and nitrite (nitrosation of morpholine), but the third to eighth brews accelerated it. The green tea infusion brewed from 5 g of leaves in 200 ml hot water (strong tea infusion) inhibited the nitrosation of morpholine, but that brewed from 2.5 g or less (weak tea infusion) promoted the nitrosation. The brewed green tea infusion that inhibited nitrosation of morpholine contained catechins at a high concentration, and that that promoted nitrosation contained catechins at a low concentration. The effects of green tea administered to Wistar male rats and that consumed by humans on the formation of nitrosamines were also examined. In both rats and humans, nitrosamine formation was inhibited by strong green tea extract but was increased by weak green tea extract. The concentration of catechins in the green tea infusion brewed by the general households in tea-producing areas was significantly higher than that brewed in non-producing areas. We examined the relationship between the concentration of catechins in green tea infusion brewed in different areas and the standardized mortality ratio (SMR) of cancer in respective areas, and found that the catechin concentration in green tea infusion correlated inversely and significantly with the SMR of cancer in that area. We concluded that strong green tea might inhibit the formation of nitrosamines and decrease the risk of carcinogenesis.