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Takashi Takahashi,Kazuaki Arai,이동현,고은하,Haruno Yoshida,Hisakazu Yano,Mitsuo Kaku,김선주 대한진단검사의학회 2016 Annals of Laboratory Medicine Vol.36 No.1
Background: We determined the epidemiological characteristics of erythromycin (EM)-resistant Streptococcus pyogenes (group A streptococci, GAS) strains isolated from Korea and Japan, using emm genotyping and multilocus sequence typing (MLST). Methods: Clinical isolates of GAS had been collected from 1992 to 2012 in Korea and from 2004 to 2009 in Japan. EM resistance was determined by the microdilution method, and resistance genotypes were assessed by PCR. The emm genotyping and MLST were performed by DNA sequencing. Results: The emm genotypes and sequence types (STs) were concordant in 143 (85.1%) of 168 EM-resistant GAS strains from Korea. ST36/emm12 (35.1%), ST52/emm28 (22.6%), and ST49/emm75 (16.1%) were the most common types. Most of the ST36 (93.9%) and ST52 (95.8%) strains harbored erm(B), whereas strains ST49, ST42, and ST15 contained mef(A). The concordance between emm genotypes and STs was 41 (93.2%) among 44 EM-resistant GAS strains from Japan. ST36/emm12 (34.1%), ST49/emm75 (18.2%), and ST28/emm1 (15.9%) were the major types. ST36 isolates harbored either erm(B) (56.3%) or mef(A) (37.5%), whereas isolates ST28, ST49, and ST38 carried only mef(A). The proportion of erm(B) and mef(A) was 66.1% and 33.3% in Korea and 22.7% and 68.2% in Japan, respectively. Conclusions: The common STs in Korea and Japan were ST36 and ST49, whereas ST52 was present only in Korea and ST28 only in Japan. Genotype erm(B) was predominant in Korea, whereas mef(A) was frequent in Japan. There were differences between Korea and Japan regarding the frequencies of emm genotypes, STs, and EM resistance genes among the EM-resistant GAS.
Carcinoma ex Pleomorphic Adenoma Including Two Carcinoma Components Arising in the Palate
Hiroyuki Kaneko,Takashi Muramatsu,Kitaro Onozawa,Hisashi Yano,Mami Owada,Hiroyuki Abe 대한구강악안면병리학회 2012 대한구강악안면병리학회지 Vol.36 No.2
Carcinoma ex pleomorphic adenoma is a rare malignant salivary gland tumor. The carcinomatous component of the carcinoma ex pleomorphic adenoma is mostly one type such as adenocarcinoma NOS, salivary duct carcinoma and undifferentiated carcinoma. We present a case of carcinoma ex pleomorphic adenoma including two carcinomatous components. The tumor occurred in the palate of a 70-year-old man. Histopathologically, the tumor was composed of both benign pleomorphic adenoma and the carcinoma area that showed adenocarcinoma NOS and squamous cell carcinoma. Finally this case was diagnosed as carcinoma ex pleomorphic adenoma including two carcinomatous components.
경구개에서 발생한 두 암종 요소를 포함한 다형성 선종으로부터 유래된 암종
Hiroyuki Kaneko,Takashi Muramatsu,Kitaro Onozawa,Hisashi Yano,Mami Owada,Hiroyuki Abe 대한구강악안면병리학회 2012 대한구강악안면병리학회지 Vol.36 No.2
Carcinoma ex pleomorphic adenoma is a rare malignant salivary gland tumor. The carcinomatous component of the carcinoma ex pleomorphic adenoma is mostly one type such as adenocarcinoma NOS, salivary duct carcinoma and undifferentiated carcinoma. We present a case of carcinoma ex pleomorphic adenoma including two carcinomatous components. The tumor occurred in the palate of a 70-year-old man. Histopathologically, the tumor was composed of both benign pleomorphic adenoma and the carcinoma area that showed adenocarcinoma NOS and squamous cell carcinoma. Finally this case was diagnosed as carcinoma ex pleomorphic adenoma including two carcinomatous components
Hot Carrier Effect in Low-Temperature Poly-Si TFTs with Sputtered Gate SiO2 Films
Yukiharu Uraoka,Hiroshi Yano,Makoto Miyashita,Tadashi Serikawa,Takashi Fuyuki,Tomoaki Hatayama,Yuta Sugawara 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.4
We investigated the reliability of low-temperature poly-Si thin film transistor (TFT) by using Si films and gate oxides fabricated by using RF sputtering method. To evaluate the immunity against the hot carrier effect, we imposed DC and dynamic stress on the sputtered TFT. We found that reliability was higher than it was a conventional TFT. The sputtered TFT showed very little degradation. Observation by emission microscope was performed to analyze their strong immunity. In a conventional TFT, emission was observed only at the drain edge. However, in sputtered TFT, emission was observed not only at the drain edge but also at the source edge. We proposed a model explaining the emission in a sputtered TFT. To prove this model, we examined the emission in a SOI TFT. A similar emission mode supports our model. Sputtered TFTs are very promising for next generation.?
Yusuke Asakura,Hiroki Tsuchiya,Hisatake Mori,Takashi Yano,Yasuhide Kanayama,Hideki Takagi 대한마취통증의학회 2011 Korean Journal of Anesthesiology Vol.61 No.5
Background: Venous thromboembolism (VTE) and the subsequent development of pulmonary embolism (PE) is a major cause of post-operative mortality in total knee arthroplasty (TKA). We evaluated whether the addition of an ultrasound-guided femoral nerve block with general anesthesia affected the incidence in the development of VTE following TKA. Methods: This was a retrospective non-randomized comparative study with patients assigned to groups based on the surgery date (pre-femoral nerve block versus post-femoral nerve block periods). All anesthesia and medical records of the patients who had undergone computer-navigated TKA in our facility between January 2009 and March 2010were retrospectively reviewed. Results: Forty patients were identified; 15 patients underwent computer-navigated TKA under general anesthesia alone (Group G) and 25 patients underwent surgery under general anesthesia combined with ultrasoundguided femoral nerve block (Group F). The incidence of development of VTE post-operatively was significantly lower in Group F (P = 0.037). Logistic regression analysis identified the use of a femoral nerve block as the most significant variable correlating with the incidence of post-operative development of VTE, and the odds ratio for VTE development in Group G was 3.12 (95% CI, 0.57-20.56). Conclusions: We suggest the possibility that the addition of a femoral nerve block on general anesthesia may reduce the incidence of the development of VTE following TKA.