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7850篇 您的检索式:作者名="Kojima"
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1Nonalcoholic fatty liver disease is a novel predictor of cardiovascular disease显示文摘AIM:To clarify whether nonalcoholic fatty liver disease(NAFLD)increases the risk of cardiovascular disease.METHODS:We carried out a prospective observational study with a total of 1637 apparently healthy Japanese men and women who were recruited from a health check-up program.NAFLD was diagnosed by abdominal ultrasonography.The metabolic syndrome(MS)was defined according to the modified National Cholesterol Education Program(NCEP)ATP Ⅲ criteria.Five years after the baseline evaluations,the incidence of cardiovascular disease was assessed by a self-administered questionnaire.RESULTS:Among 1221 participants available for outcome analyses,the incidence of cardiovascular disease was higher in 231 subjects with NAFLD at baseline(5 coronary heart disease,6 ischemic stroke,and 1 cerebral hemorrhage)than 990 subjects without NAFLD(3 coronary heart disease,6 ischemic stroke,and 1 cerebral hemorrhage).Multivariate analyses indicated that NAFLD was a predictor of cardiovascular disease independent of conventional risk factors(odds ratio 4.12,95% CI,1.58 to 10.75,P = 0.004).MS was alsoindependently associated with cardiovascular events.But simultaneous inclusion of NAFLD and MS in a multivariate model revealed that NAFLD but not MS retained a statistically significant correlation with cardiovascular disease.CONCLUSION:Although both of them were predictors of cardiovascular disease,NAFLD but not MS retained a statistically significant correlation with cardiovascular disease in a multivariate model.NAFLD is a strong predictor of cardiovascular disease and may play a central role in the cardiovascular risk of MS.Masahide Hamaguchi Takao Kojima Noriyuki Takeda Chisato Nagata Jun Takeda Hiroshi Sarui Yutaka Kawahito Naohisa Yoshida Atsushi Suetsugu Takahiro Kato Junichi Okuda Kazunori Ida Toshikazu Yoshikawa 2007World Journal of Gastroenterology2007,13,10:55
2Systematic review of anastomotic complications of esophagojejunostomy after laparoscopic total gastrectomy显示文摘AIM: To investigate the anastomotic complications ofesophagojejunostomy(EJS) after laparoscopic total gastrectomy(LTG), we reviewed retrospective studies.METHODS: A literature search was conducted in Pub Med for studies published from January 1, 1994 through January 31, 2015. The search terms included 'laparoscopic,' 'total gastrectomy,' and 'gastric cancer.' First, we selected 16 non-randomized controlled trials(RCTs) comparing LTG with open total gastrectomy(OTG) and conducted an updated meta-analysis of anastomotic complications after total gastrectomy. The Newcastle-Ottawa scoring system(NOS) was used to assess the quality of the non-RCTs included in this study. Next, we reviewed anastomotic complications in 46 case studies of LTG to compare the various procedures for EJS. RESULTS: The overall incidence of anastomotic leakage associated with EJS was 3.0%(30 of 984 patients) among LTG procedures and 2.1%(31 of 1500 patients) among OTG procedures in the 16 non-RCTs. The incidence of anastomotic leakage did not differ significantly between LTG and OTG(odds OR = 1.42, 95%CI: 0.86-2.33, P = 0.17, I2 = 0%). Anastomotic stenosis related to EJS was reported in 72(2.9%) of 2484 patients, and the incidence was 3.2% among LTG procedures and 2.7% among OTG procedures. The incidence of anastomotic stenosis related to EJS was slightly, but not significantly, higher in LTG than in OTG(OR = 1.55, 95%CI: 0.94-2.54, P = 0.08, I2 = 0%). The various procedures for LTG were classified into six categories in the review of case studies of LTG. The incidence of EJS leakage was similar(1.1% to 3.2%), although the incidence of EJS stenosis was relatively high when the Or VilTM device was used(8.8%) compared with other procedures(1.0% to 3.6%).CONCLUSION:The incidence of anastomotic complications associated with EJS was not different between LTG and OTG. Anastomotic stenosis was relatively common when the Or VilTM device was used.Mikito Inokuchi Sho Otsuki Yoshitaka Fujimori Yuya Sato Masatoshi Nakagawa Kazuyuki Kojima 2015World Journal of Gastroenterology2015,21,32:23
3Importance of adequate immunosuppressive therapy for the recovery of patients with 'life-threatening' severe exacerbation of chronic hepatitis B显示文摘AIM: Hepatitis B virus (HBV) re-activation often occurs spontaneously or after withdrawal of immunosuppressive therapy in patients with chronic hepatitis B. Severe exacerbation, sometimes developing into fulminant hepatic failure, is at high risk of mortality. The efficacy of corticosteroid therapy in 'clinically severe' exacerbation of chronic hepatitis B has not been well demonstrated. In this study we evaluated the efficacy of early introduction of high-dose corticosteroid therapy in patients with lifethreatening severe exacerbation of chronic hepatitis B.METHODS: Twenty-two patients, 14 men and 8 women,were defined as 'severe' exacerbation of chronic hepatitis B using uniform criteria and enrolled in this study. Eleven patients were treated with corticosteroids at 60 mg or more daily with or without anti-viral drugs within 10 d after the diagnosis of severe disease ('early high-dose'group) and 11 patients were either treated more than 10 d or untreated with corticosteroids ('non-early high-dose'group).RESULTS: Mean age, male-to-female ratio, mean prothrombin time (PT) activity, alanine transaminase (ALT)level, total bilirubin level, positivity of HBeAg, mean IgMHBc titer, and mean HBV DNA polymerase activity did not differ between the two groups. Ten of 11 patients of the 'early high-dose' group survived, while only 2 of 11 patients of the 'non-early high-dose' group survived (P<0.001). During the first 2 wk after the introduction of corticosteroids, improvements in PT activities and total bilirubin levels were observed in the 'early high-dose'group. Both ALT levels and HBV DNA polymerase levels fell in both groups.CONCLUSION: The introduction of high-dose corticosteroid can reverse deterioration in patients with 'clinically lifethreatening' severe exacerbation of chronic hepatitis B,when used in the early stage of illness.Keiichi Fujiwara Osamu Yokosuka Hiroshige Kojima Tatsuo Kanda Hiromitsu Saisho Hiroyuki Hirasawa Hiroshi Suzuki 2005World Journal of Gastroenterology2005,11,8:20
4Aging is a risk factor of nonalcoholic fatty liver disease in premenopausal women显示文摘AIM: To clarify the relationship between age, menopause, and nonalcoholic fatty liver disease (NAFLD) in women. METHODS: We conducted a follow-up study on non-alcoholic fatty liver disease by using abdominal ultrasonography, and investigated the relationship of age and menopause with the development of NAFLD in women. We followed 1829 women and 2572 men (response rate, 86%) selected in 2001 to represent the non-institutionalized adult population of Gifu, Japan. Data collected included self-reported medical history, lifestyle factors, and menopausal status. The postmenopausal state was defined as beginning 1 year after the cessation of menses. We diagnosed NAFLD with the aid of abdominal ultrasonography by using diagnostic criteria describedRESULTS: The prevalence of NAFLD in women increases with age, but does not alter with age in men. Furthermore, the prevalence of NAFLD in premenopausal women (6%) was lower than that in men (24%) and in postmenopausal women (15%). The associations of the postmenopausal state and hormone replacement therapy with NAFLD were statistically significant in a univariate logistic regression model. At the follow-up examination, 67 women (5%) were newly diagnosed with NAFLD. The incidence of NAFLD was 3.5% (28/802) in premenopausal women, 7.5% (4/53) in menopausal women, 6.1% (24/392) in postmenopausal women, and 5.3% (11/206) in women receiving hormone replacement therapy. The weight gain in premenopausal women was equal to that in postmenopausal women. Metabolic syndrome and weight gain were independent risk factors for NAFLD in pre-and postmenopausal women, but age was an independent risk factor in premenopausal women only. CONCLUSION: Aging is a risk factor for NAFLD in premenopausal women, independent of weight gain or influence of metabolic syndrome.Masahide Hamaguchi Takao Kojima Akihiro Ohbora Noriyuki Takeda Michiaki Fukui Takahiro Kato 2012World Journal of Gastroenterology2012,18,3:19
5Identification of individuals with non-alcoholic fatty liver disease by the diagnostic criteria for the metabolic syndrome显示文摘AIM:To clarify the efficiency of the criterion of metabolic syndrome to detecting non-alcoholic fatty liver disease(NAFLD).METHODS:Authors performed a cross-sectional study involving participants of a medical health checkup program including abdominal ultrasonography.This study involved 11 714 apparently healthy Japanese men and women,18 to 83 years of age.NAFLD was defined by abdominal ultrasonography without an alcohol intake of more than 20 g/d,known liver disease,or current use of medication.The revised criteria of the National Cholesterol Education Program Adult Treatment PanelⅢ were used to characterize the metabolic syndrome.RESULTS:NAFLD was detected in 32.2%(95%CI:31.0%-33.5%)of men(n=1874 of 5811)and in 8.7%(95%CI:8.0%-9.5%)of women(n=514 of 5903).Among obese people,the prevalence of NAFLD was as high as 67.3%(95%CI:64.8%-69.7%)in men and 45.8%(95%CI:41.7%-50.0%)in women.Although NAFLD was thought of as being the liver phenotype of metabolic syndrome,the prevalence of the metabolic syndrome among subjects with NAFLD was low both in men and women.66.8%of men and 70.4%of women with NAFLD were not diagnosed with the metabolic syndrome.48.2%of men with NAFLD and 49.8%of women with NAFLD weren't overweight[body mass index(BMI)≥25 kg/m2].In the same way,68.6%of men with NAFLD and 37.9%of women with NAFLD weren't satisfied with abdominal classification(≥90 cm for men and≥80 cm for women).Next,authors defined it as positive at screening for NAFLD when participants satisfied at least one criterion of metabolic syndrome.The sensitivity of the definition'at least 1 criterion'was as good as 84.8%in men and 86.6%in women.Separating subjects by BMI,the sensitivity was higher in obese men and women than in non-obese men and women(92.3%vs 76.8%in men,96.1%vs 77.0%in women,respectively).CONCLUSION:Authors could determine NAFLD effectively in epidemiological study by modifying the usage of the criteria for metabolic syndrome.Masahide Hamaguchi Noriyuki Takeda Takao Kojima Akihiro Ohbora Takahiro Kato Hiroshi Sarui Michiaki Fukui Chisato Nagata Jun Takeda 2012World Journal of Gastroenterology2012,18,13:13
6Protective effect of alcohol consumption for fatty liver but not metabolic syndrome显示文摘AIM:To investigate the effect of alcohol on the metabolic syndrome (MS) and fatty liver in Japanese men and women.METHODS:A cross-sectional study was conducted in a medical health checkup program at a general hospital.This study involved 18 571 Japanese men and women,18-88 years of age,with a mean body mass index of 22.6 kg/m 2.A standardized questionnaire was administered.The total amount of alcohol consumed per week was calculated,and categorized into four grades.Fatty liver was examined by ultrasound modified criteria of the revised National Cholesterol Educa-tion Program Adult Treatment Panel Ⅲ and the new International Diabetes Federation.RESULTS:The prevalence of fatty liver decreased in men and women with light to moderate alcohol consumption,whereas the prevalence of MS was not so changed.The prevalence of fatty liver of any grade in men was lower than that in those with no or minimal alcohol consumption.In women with light to moderate alcohol consumption,prevalence of fatty liver was lower than that in women with no or minimal alcohol consumption.By logistic regression analysis,the odds ratio (OR) for MS in women with light alcohol consumption was decreased to < 1.0,but this change was not clear in men.The OR for fatty liver was clearly < 1.0 in men with any level of alcohol consumption and in women with light to moderate consumption.CONCLUSION:Light to moderate alcohol consumption has a favorable effect for fatty liver,but not for MS in Japanese men and women.Masahide Hamaguchi Takao Kojima Akihiro Ohbora Noriyuki Takeda Michiaki Fukui Takahiro Kato 2012World Journal of Gastroenterology2012,18,2:12
7Effect of in vitro interferon-beta administration on hepatitis C virus in peripheral blood mononuclear cells as a predictive marker of clinical response to interferon treatment for chronic hepatitis C显示文摘AIM:To test whether in vitro incubation of peripheral blood mononuclear cells (PBMC) with interferon (IFN) could efficiently decrease hepatitis C virus-RNA (HCV-RNA) amount and to analyze whether this effect was associated with clinical response to IFN.METHODS:Twenty-seven patients with histologically proven chronic hepatitis C were given intravenous administration of 6 million units (MU) IFN-β daily for 6 weeks followed by three times weekly for 20 weeks. PBMC collected before IFN therapy were incubated with IFN-β and HCV-RNA in PMBC was semi-quantitatively determined.RESULTS: Twenty-five patients completed IFN therapy.Eight patients (32%) had sustained loss of serum HCV-RNA with normal serum ALT levels after IFN therapy (complete responders).HCV-RNA in PBMC was detected in all patients,whereas it was not detected in PBMC from healthy subjects.In vitro administration of IFN-β decreased the amount of HCV-RNA in PMBC in 18 patients (72%). Eight of these patients obtained complete response. On the other hand,none of the patients whose HCV-RNA in PBMC did not decrease by IFN-β was complete responders. Multiple logistic regression analysis revealed that the decrease of HCV-RNA amount in PBMC by IFN-β was the only independent predictor for complete response (P<0.05).CONCLUSION:The effect of in vitro IFN-β on HCV in PBMC reflects clinical response and would be taken into account as a predictive marker of IFN therapy for chronic hepatitis C.Kaori Mochizuki Tatehiro Kagawa Shinji Takashimizu Kazuya Kawazoe Sei-Ichiro Kojima Naruhiko Nagata Atsushi Nakano Yasuhiro Nishizaki Koichi Shiraishi Masaru Itakura Norihito Watanabe Tetsuya Mine Shohei Matsuzaki 2004World Journal of Gastroenterology2004,10,5:12
8Cyclooxygenase-2 expression after preoperative chemoradiotherapy correlates with more frequent esophageal cancer recurrence显示文摘AIM: To investigate the relationship between cycloo- xygenase-2 (COX-2), and vascular endothelial growth factor (VEGF), and to determine the clinical significance of this relationship in esophageal cancer patients undergoing chemoradiotherapy (CRT). METHODS: Immunohistochemical staining was used to evaluate COX-2 and VEGF expression in 40 patients with histologically-confirmed esophageal squamous carcinoma (ESCC) who were undergoing preoperative CRT. RESULTS: Fourteen out of 40 ESCC patients showed a pathological complete response (CR) after CRT. COX-2 and VEGF protein expressions were observed in the cytoplasm of 17 and 13 tumors, respectively, with null expression in 9 and 13 tumors, respectively. COX-2 expression was strongly correlated with VEGF expression (P < 0.05). There were also significant associations between COX-2 expression, tumor recurrence, and lymph-node involvement (P = 0.0277 and P = 0.0095, respectively). COX-2 expression and VEGF expression had significant prognostic value for disease-free survival (log-rank test; P = 0.0073 and P = 0.0341, respectively), but not for overall survival, as assessed by univariate analysis. CONCLUSION: Our results suggest that COX-2 expression correlates with VEGF expression and might be a useful prognostic factor for more frequent tumor recurrence in ESCC patients undergoing neoadjuvant CRT. These findings support the use of anti-angiogenic COX-2 inhibitors in the treatment of ESCC.Reigetsu Yoshikawa Yoshinori Fujiwara Kenji Koishi Syoudou Kojima Tomohiro Matsumoto Hidenori Yanagi Takehira Yamamura Tomoko Hashimoto-Tamaoki Takashi Nishigami Tohru Tsujimura 2007World Journal of Gastroenterology2007,13,16:9
9病理性近视患者视乳头周围脱离的特征显示文摘目的:在一组高度近视患者中,评估新近认识的视乳头周围病变。即病理性近视视乳头周围脱离(PD-PM)的患病率和临床特征。 方法:共纳入324位高度近视患者(632只眼)。在这些患者中观察PDPMD的发病率、病变范围、荧光素和吲哚青绿造影检查结果及OCT结果。并对有PDPM的患者进行视野检查(Goldmann动态视野检查法和Humphrey 30-2程序)。结果:632只高度近视眼中有31只眼(4.9%)存在视乳头周围脱离。PDPM病变部位的OCT扫描显示视神经邻近部位视网膜色素上皮层的局限性脱离。PDPM常位于视盘下方。但一些患者的病变几乎环绕整个视盘。邻近PDPM的下方近视弧形斑有陡峭的凹陷。且颞下视网膜静脉在跨过PDPM和凹陷的近视弧形斑时明显弯曲。PDPM眼常被检出存在青光眼性视野缺损(71.0%)。 结论:本研究表明PDPM在高度近视眼中并非罕见。虽然其发病机制和病理学意义尚需进一步分类。高度近视PDPM的出现提示可能存在视野缺损。Noriaki Shimada Kyoko Ohno-Matsui Takeshi Yoshida Kenjiro Yasuzumi Ariko Kojima Kanako Kobayashi Soh Futagami Takashi Tokoro Manabu Mochizuki 刘亮(译) 2006美国医学会眼科杂志(中文版)2006,18,4:9
10Persistent CXCR4 expression after preoperative chemoradiotherapy predicts early recurrence and poor prognosis in esophageal cancer显示文摘AIM: To study the effect of CXC chemokine receptor-4 (CXCR4) expression on disease progression and prognosis in esophageal cancer. METHODS: CXCR4 expression was evaluated in 37 patients with histologically confirmed esophageal squamous carcinomas (ESCC) undergoing preoperative chemoradiotherapy (CRT) by immunohistochemical staining. RESULTS: Eleven out of 37 ESCC patients showed a pathological complete response (CR) after CRT. CXCR4 protein expression was observed in cell cytoplasms of 13 tumors, and null expression was seen in 13 tumors. Distant recurrence was significantly more common in patients with positive CXCR4 expression (P = 0.0318). After a median follow-up time of 31.6 mo, 19 patients progressed (12 of 19 expressed positive CXCR4) and 11 died (10 of 11 expressed positive CXCR4). Overall survival was significantly correlated with lymph node metastasis (952.1 ± 53.8 d in negative group vs 475.1 ± 56.2 d in positive group, P = 0.023), distant metastasis (874.0 ± 60.4 d in negative group vs 434.9 ± 75.2 d in positive group, P = 0.014) and CRT (811.5 ± 51.2 d in responder group vs 459.6 ± 94.0 d in non-responder group, P = 0.00038) and further with an absence ofCXCR4 expression or no residual tumor (959.8 ± 51.0 d in null expression or no tumor group vs 412.0 ± 57.1 d in positive expression group, P = 0.0001). CONCLUSION: Persistent positive CXCR4 expression is implicated in tumor aggressiveness and poor prognosis in ESCC after CRT, and preoperative CRT may improve the prognosis of ESCC via CXCL12-CXCR4 signaling pathway.Kenji Koishi Reigetsu Yoshikawa Tohru Tsujimura Tomoko Hashimoto-Tamaoki Syoudou Kojima Hidenori Yanagi Takehira Yamamura Yoshinori Fujiwara 2006World Journal of Gastroenterology2006,12,47:9
11Growth hormone releasing peptide 2 reverses anorexia associated with chemotherapy with 5-fluoruracil in colon cancer cell-bearing mice显示文摘The cancer-associated anorexia-cachexia syndrome is observed in 80% of patients with advanced-stage cancer, and is one of the major obstacles in chemo- therapy. Ghrelin is a orexigenic hormone that has been proposed to prevent anorexia. Aim of the study was to determine whether the addition of the ghrelin agonist growth hormone releasing peptide 2 (GHRP-2) to cytotoxic therapy with 5-fluoruracil (5-FU) prevents the anorexia associated with chemotherapy in cancer cachectic mice. Thirty-three BALB/c female tumourbearing mice were randomized to receive a solution containing: (a) placebo; (b) GHRP-2; (c) 5-FU; or (d) 5-FU + GHRP-2. Ten BALB/c no tumour-bearing mice received placebo solution. Food intake and survival were checked. Six hours after the drug injection the cumulative food intake was signifi cantly increased in mice treated with the combination of 5-FU + GHRP-2 versus the 5-FU alone (P = 0.0096). On day 3, the cumulative food intake of mice treated with GHRP-2,5-FU and 5-FU + GHRP-2 signifi cantly increased com- pared with naive and vehicle groups (P = 0.0007, P = 0.0038 and P = 0.0166, respectively). The median survival time was longer in 5-FU + GHRP-2 treated mice than in those with 5-FU, although it was not signifi cant (18 d versus 15.5 d, P = 0.7). For the fi rst time, we demonstrated that the addition of GHRP-2 to cytotoxic therapy with 5-FU improved appetite in tumour-bearing mice with anorexia/cachexia syndrome in early stage. These data suggest that GHRP-2 may improve the effi cacy of therapy and the quality of life of cancer patients thank to the amelioration of their nutritional state.Simona Perboni Cyril Bowers Shinya Kojima Akihiro Asakawa Akio Inui 2008World Journal of Gastroenterology2008,14,41:8
12Hepatocellular carcinoma in extremely elderly patients:An analysis of clinical characteristics,prognosis and patient survival显示文摘瞄准:80 年或更多与肝细胞癌(HCC ) 识别病人的临床、预示的特征。方法:有 HCC 的 1310 个病人的一个总数在这研究被包括。80 年或更多的 91 个病人在 HCC 的诊断的时候被定义为极其老的组。> 或 = 的 234 个病人 50 年但是不到 60 年被认为是非老的组。结果:两性比率(到女性的男性) 比在非老的组在极其老的组(0.90:1 ) 是显著地更低的(3.9:1, P < 0.001 ) 。为 HBsAg 的积极的率在极其老的组和为显然在极其老的组增加的 HBsAg 和 HCVAb 否定的病人的比例是显著地更低的(P < 0.001 ) 。在下列参数没有有效差量:肿瘤,分级的孩子呸,肿瘤阶段,门静脉血栓形成或腹水的存在,和为 HCVAb 的积极的率的直径和数字。极其老的病人经常没收到外科疗法(P < 0.001 ) 并且他们是更可能的收到保守疗法(P < 0.01 ) 。基于与在二个组之间的全面病人比较的 Kaplan-Meier 方法在幸存曲线没有有效差量。然而,幸存曲线在有阶段 I/II 的极其老的病人是显著地更坏的,上演 I/II,孩子呸分级与非老的组比较的肝硬化。死亡的原因没在病人之中不同,并且大多数盒子甚至在极其老的病人死于肝相关的疾病。结论:在有好肝功能和好表演地位的病人,为 HCC 的好攻击的治疗可能改进幸存率,甚至在极其老的病人。Gengo Tsukioka Satoru Kakizaki Naondo Sohara Ken Sato Hitoshi Takagi Hirotaka Arai Takehiko Abe Mitsuo Toyoda Kenji Katakai Akira Kojima Yuichi Yamazaki Toshiyuki Otsuka Yutaka Matsuzaki Fujio Makita Daisuke Kanda Katsuhiko Horiuchi Tetsuya Hamada Mieko Kaneko Hideyuki Suzuki Masatomo Mori 2006World Journal of Gastroenterology2006,12,1:7
13Clinical significance of MET in gastric cancer显示文摘Chemotherapy has become the global standard treatment for patients with metastatic or unresectable gastric cancer(GC),although outcomes remain unfavorable.Many molecular-targeted therapies inhibiting signaling pathways of various tyrosine kinase receptors have been developed,and monoclonal antibodies targeting human epidermal growth factor receptor 2 or vascular endothelial growth factor receptor 2 have become standard therapy for GC.Hepatocyte growth factor and its receptor,c-MET(MET),play key roles in tumor growth through activated signaling pathways from receptor in GC cells.Genomic amplification of MET leads to the aberrant activation found in GC tumors and is related to survival in patients with GC.This review discusses the clinical significance of MET in GC and examines MET as a potential therapeutic target in patients with GC.Preclinical studies in animal models have shown that MET antibodies or smallmolecule MET inhibitors suppress tumor-cell proliferation and tumor progression in MET-amplified GC cells.These drugs are now being evaluated in clinical trials as treatments for metastatic or unresectable GC.Mikito Inokuchi Sho Otsuki Yoshitaka Fujimori Yuya Sato Masatoshi Nakagawa Kazuyuki Kojima 2015World Journal of Gastrointestinal Oncology2015,7,11:5
14自体血清滴眼液治疗严重干眼症的疗效:前瞻性随机病例对照研究Kojima T. Ishida R. Dogru M. 陈立军 2005世界核心医学期刊文摘(眼科学分册)2005,0,7:5
15Non-Epstein-Barr virus associated lymphoepithelioma-like carcinoma of the inferior common bile duct显示文摘A carcinoma displaying undifferentiated features with dense lymphoplasmacytic infiltration is defined as a lymphoepithelioma-like carcinoma(LEC),and some of LEC is associated with Epstein-Barr virus(EBV).All of the 13 previously reported cases of LEC of the biliary system were intrahepatic in location.Herein,we describe the first case of LEC of the inferior common bile duct.A 68-year-old Japanese man,who had been previously treated for hepatocellular carcinoma using microwave coagulation therapy,was found to have tumors of the common bile duct and pancreas head.Histopathological study of the resected tumor showed solid or cohesive nests of large undifferentiated cells with irregular large vesicular nuclei and nucleoli.Around the tumor cell nests,dense lymphoplasmacytic infiltration was observed.Focal glandular differentiation(approximately 5%) was also present.These histopathological features corresponded morphologically to LEC.Immunohistochemically,the tumor cells were positive for cytokeratin(CK) 7,CK 19 and CA19-9,but negative for CK 20 and Hep Par 1.In situ hybridization for Epstein Barr virus early small RNAs disclosed no nuclear signal in tumor cells.Therefore,a diagnosis of non-EBV-associated LEC of the inferior common bile duct was made.Although the prognosis of the biliary LEC is thought to be better than that of conventional cholangiocarcinoma,the differences in prognosis between EBV-positive and-negative cases have not yet been established.Therefore,additional case studies will be needed to clarify the clinicopathological features of LEC of the biliary tract.Mitsuaki Ishida Tsuyoshi Mori Hisanori Shiomi Shigeyuki Naka Tomoyuki Tsujikawa Akira Andoh Yasuharu Saito Yoshimasa Kurumi Fumiyoshi Kojima Machiko Hotta Tohru Tani Yoshihide Fujiyama Hidetoshi Okabe 2011World Journal of Gastrointestinal Oncology2011,3,7:5
16Efects of amine, amine salt and amide on the behaviour of carbon dioxide absorption into calcium hydroxide suspension to precipitate calcium carbonate显示文摘The amount of carbon dioxide(CO2) absorption and calcium ion(Ca2+) concentration besides the pH of aqueous solution were observed during the CO2 absorption to precipitate calcium carbonate(CaCO3) from calcium hydroxide(Ca(OH)2). A reaction rate-limiting efect of an amount of CO2 absorption without any organic additives in the early stage of the precipitation was observed, which was attributed to an interruption efect of bicarbonate ion(HCO 3) on the precipitation of CaCO3. The improvement for the reaction rate was achieved not only by amine additives but also by neutral additives such as ε-caprolactam or amine salt. When the hexamethylene diamine was dissolved in the solution, successive change of crystal forms of CaCO3 aragonite to calcite in aqueous suspensions, confirmed by Ca2+ concentration change and X-ray difraction, was concluded that a local environment around the amine group in aqueous solution and an interaction of the diamine with precipitated CaCO3 particles were important factors for these reactions.Wittaya Chuajiw Mitsuru Nakano Kazumasa Takatori Toshiya Kojima Yoshiki Wakimoto Yoshiaki Fukushima 2013Journal of Environmental Sciences2013,25,12:5
17Comparison between sitagliptin and nateglinide on postprandial lipid levels: The STANDARD study显示文摘AIM: To assess the effects of sitagliptin and nateglinide on lipid metabolism. METHODS: In a parallel group comparative open trial, patients with type 2 diabetes mellitus under treatment at the Japanese Red Cross Medical Center were randomly assigned to receive either sitagliptin (50 mg once daily) or nateglinide (90 mg three times daily before meals). Eligible patients met the following criteria: age ≥ 20 years; hemoglobin A 1c (HbA 1c ) > 6.5% despite diet and exercise; HbA 1c between 6.5% and 8.0%; fasting glucose < 7.77 mmol/L; diet and exercise therapy for more than 3 mo; and ability to read and understand the information for written informed consent. Exclusion criteria were contraindications to sitagliptin, contraindications to nateglinide, pregnancy or possible pregnancy, and severe liver/renal failure. Patients who were considered to be unsuitable by the attending physician for other reasons were also excluded. Blood samples were collected at one and three hours after intake of a test meal. The primary outcome measure was the area under the curve (AUC) of apolipoprotein (Apo) B48 at three hours postprandially. RESULTS: Twenty patients were randomly assigned to the sitagliptin group and sixteen patients were randomized to the nateglinide group. All 36 patients took the medication as directed by the physician in both groups, and they all were analyzed. Apart from antidiabetic drugs, there was no difference between the two groups with respect to the frequency of combined use of lipid-lowering, antihypertensive, and/or antiplatelet drugs. The doses of these medications were maintained during 12 wk of treatment. Detailed dietary advice, together with adequate exercise therapy, was given to the patients so that other factors apart from the two test drugs were similar in the two groups. There were no significant differences of the baseline characteristics between the two groups, except for body mass index (the sitagliptin group: 25.14 ± 3.05 kg/m 2 ; the nateglinide group: 21.39 ± 2.24 kg/m 2 ). Fasting levels of HbA 1c , glycated albumin, 1.5-anhydroglucitol, and blood glucose, as well as the blood glucose levels at one and three hours postprandially, improved in both groups after 12 wk of treatment, and there were no significant differences between the two groups. However, the glucagon level at one hour postprandially (P = 0.040) and the diastolic blood pressure (P<0.01) only showed a significant decrease in the sitagliptin group. In the nateglinide group, there was no significant change in the AUC of Apo B48, the glucagon level at one hour postprandially, the fasting triglyceride level, or the diastolic blood pressure. Body weight was unchanged in both groups. However, the AUC of Apo B48 at three hours postprandially showed a significant decrease in the sitagliptin group from 2.48 ± 0.11 at baseline to 1.94 ± 0.78 g/L per hour after 12 wk (P=0.019). The fasting triglyceride level also decreased significantly in the sitagliptin group (P = 0.035). With regard to lipid-related markers other than Apo B48 and fasting triglycerides, no significant changes were observed with respect to Apo A1, Apo B, or Apo C3 in either group. No adverse events occurred in either group. CONCLUSION: Sitagliptin significantly improves some lipid parameters while having a comparable effect on blood glucose to nateglinide. A large-scale prospective study of sitagliptin therapy is warranted.Yuichi Kojima Hideyoshi Kaga Shinu Hayashi Toru Kitazawa Yuko Iimura Makoto Ohno Michiyasu Yoshitsugu Mutsunori Fujiwara Toru Hiyoshi 2013World Journal of Diabetes2013,4,1:5
18CONSTRUCTION OF A GENOMIC DNA LIBRARY WITH ATA VECTOR AND ITS APPLICATION IN CLONING OF THE PHYTOENE SYNTHASE GENE FROM THE CYANOBACTERIUM SPIRULINA PLATENSIS M-135显示文摘An efficient and simple method for constructing a genomic DNA library using a TAcloning vector is presented. It is based on the sonicative cleavage of genomic DNA and modification offragment ends with Taq DNA polymerase, followed by ligation using a TA vector. This method was ap-plied for cloning of the phytoene synthase gene crtB from Spirulina platensis. This method is useful whengenomic DNA cannot be efficiently digested with restriction enzymes, a problem often encountered duringthe construction of a genomic DNA library of cyanobacteria.Yoshikazu Kawata Shin-ichi Yano Hiroyuki Kojima(Osaka Mational Research Institute. Agency of Industrial Science and Technology, Ikeda, Osaka 563, Japan) 1998Chinese Journal of Oceanology and Limnology1998,16,S1:5
19Can harvest outsourcing services reduce field harvest losses of rice in China?显示文摘The purpose of this study is to quantify the rice harvest losses in China and to evaluate the impacts of machinery and harvest outsourcing services on these losses,given the background of high-speed mechanization and outsourcing services.Data were collected from a national survey conducted in 2016 by the research team in conjunction with the Research Center for the Rural Economy of the Ministry of Agriculture and Rural Affairs of China.A non-parametric method was used to test whether combine harvesting and outsourcing services could significantly reduce harvest losses.Next,quantile regression was used to estimate the real effects of machinery and outsourcing services on harvest losses.The analysis yielded four main study outcomes.First,the harvest loss rate of rice in China was 3.65%.Second,mechanical reaping and winnowing caused greater losses than manual methods,while the opposite was true of field transportation.Third,combine harvesting increased the losses.Fourth,the effects of an outsourcing service on losses differed among the different harvesting methods.Outsourcing services increased losses in segmented harvesting but they reduced losses in combine harvesting.QU Xue Daizo KOJIMA Yukinaga NISHIHARA WU La-ping Mitsuyoshi ANDO 2021Journal of Integrative Agriculture2021,20,5:4
20Rescue of white egg 1 mutant by introduction of the wildtype Bombyx kynurenine 3-monooxygenase gene显示文摘在蚕,白鸡蛋 1 (w-1 ) 异种,被白眼睛和白鸡蛋描绘,在 Bombyx kynurenine 3-monooxygenase (KMO ) 是缺乏的活动。Toinvestigate w-1 异种显型是否被介绍野类型的 KMO 基因救,我们在细胞质的肌动朊基因倡导者(A3KMO ) 或本国的 KMO 基因倡导者(KKMO ) 的控制下面与野类型的 Bombyx KMO 基因构造了转基因的蚕。我们与 KKMO 构造与 A3KMO 和一根线创造了二根转基因的线。在这些线的成年人的眼睛是棕色的,并且转基因的女性生的鸡蛋也是棕色的。Reversetranscription 聚合酶链反应(RT-PCR ) 分析证明 A3KMO 蚕线在中间勇气的、胖身体表示了抄本,并且肾小体小管。KKMO 线仅仅在胖身体表示了抄本并且肾小体小管。在转基因的线的眼睛和卵色的紧张与 KMO 表示水平成正比。有趣地,有 A3KMO 构造的转基因的幼虫有轻褐幼虫的表皮,而是 KKMO 线不。这些结果显示野类型的 KMO 基因能作为标记基因被使用视觉上屏蔽转基因的蚕。GUO-XING QUAN ISAO KOBAYASHI KATSURA KOJIMA KEIRO UCHINO TOSHIO KANDA HIDEKI SEZUTSU TORU SHIMADA TOSHIKI TAMURA 2007Insect Science2007,14,2:4
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