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| 1 | Comparative epidemiology of gastric cancer between Japan and China显示文摘AIM:To clarify the similarities and differences in gastric cancer epidemiology between Japan and China.METHODS:A comprehensive literature search of the PubMed database was performed.The relevant literature published in China was also been cited.Data on incidence and mortality rates in 2008 were obtained from the Cancer Mondial database,published by International Agency for Research on Cancer at http://gffzzdff0249c86de468fhx6o609x56xp96nuk.ffgz.tsg.suse.edu.cn/.RESULTS:Gastric cancer remains a significant publichealth burden in both Japan and China.The prevalence of Helicobacter pylori(H.pylori)colonization is high in the adult populations of both countries.Accumulating evidence from intervention studies in both countries has shown the effectiveness of H.pylori eradication in reduc-ing gastric cancer incidence.There are differences,however,in many aspects of gastric cancer,including patterns of incidence and mortality,trends in the prevalence of H.pylori infection,H.pylori strains,the magnitude of risk of gastric cancer related to H.pylori infection,and associations with dietary habits.Compared with China,Japan has seen a more rapid decline in H.pylori infection among adolescents.While Japanese cohort studies have dominated the literature concerning the associations between gastric cancer and dietary habits,numerous case-control studies in China suggest a positive association between a high intake of preserved fish and vegetables and gastric cancer risk.There is a need for a multidisciplinary research approach to understand the interactions between various strains of H.pylori,host factors,and other lifestyle and environmental factors in gastric carcinogenesis in both countries.CONCLUSION:The shared high incidence of gastric cancer and high prevalence of H.pylori,as well as differences in many aspects of gastric cancer,provide an excellent opportunity to establish Sino-Japanese collaborations. | Yingsong Lin Junko Ueda Shogo Kikuchi Yukari Totsuka Wen-Qiang wei You-Lin Qiao Manami Inoue | 2011 | World Journal of Gastroenterology2011，17，39： | 64 |
| 2 | Blockade of high mobility group box-1 protein attenuates experimental severe acute pancreatitis显示文摘AIM: To examine the effects of anti-high mobility group box 1 (HMGB1) neutralizing antibody in experimental se-vere acute pancreatitis (SAP).METHODS: SAP was induced by creating closed duode-nal loop in C3H/HeN mice. SAP was induced immediately after intraperitoneal injection of anti-HMGB1 neutralizing antibody (200 μg). Severity of pancreatitis, organ injury (liver, kidney and lung), and bacterial translocation to pancreas was examined 12 h after induction of SAP.RESULTS: Anti-HMGB1 neutralizing antibody significant-ly improved the elevation of the serum amylase level and the histological alterations of pancreas and lung in SAP. Anti-HMGB1 antibody also significantly ameliorated the elevations of serum alanine aminotransferase and cre-atinine in SAP. However, anti-HMGB1 antibody worsened the bacterial translocation to pancreas.CONCLUSION: Blockade of HMGB1 attenuated the development of SAP and associated organ dysfunction, suggesting that HMGB1 may act as a key mediator for inflammatory response and organ injury in SAP. | Hidehiro Sawa Takashi Ueda Yoshifumi Takeyama Takeo Yasuda Makoto Shinzeki Takahiro Nakajima Yoshikazu Kuroda | 2006 | World Journal of Gastroenterology2006，12，47： | 45 |
| 3 | Interventional treatment for unresectable hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC) is the sixth most common cancer and third leading cause of cancer-related death in the world. The Barcelona clinic liver cancer classification is the current standard classification system for the clinical management of patients with HCC and suggests that patients with intermediate-stage HCC benefit from transcatheter arterial chemoembolization(TACE). Interventional treatments such as TACE, balloon-occluded TACE, drug-eluting bead embolization, radioembolization, and combined therapies including TACE and radiofrequency ablation, continue to evolve, resulting in improved patient prognosis. However, patients with advanced-stage HCC typically receive only chemotherapy with sorafenib, a multi-kinase inhibitor, or palliative and conservative therapy. Most patients receive palliative or conservative therapy only, and approximately 50% of patients with HCC are candidatesfor systemic therapy. However, these patients require therapy that is more effective than sorafenib or conservative treatment. Several researchers try to perform more effective therapies, such as combined therapies(TACE with radiotherapy and sorafenib with TACE), modified TACE for HCC with arterioportal or arteriohepatic vein shunts, TACE based on hepatic hemodynamics, and isolated hepatic perfusion. This review summarizes the published data and data on important ongoing studies concerning interventional treatments for unresectable HCC and discusses the technical improvements in these interventions, particularly for advanced-stage HCC. | Satoru Murata Takahiko Mine Fumie Sugihara Daisuke Yasui Hidenori Yamaguchi Tatsuo Ueda Shiro Onozawa Shin-ichiro Kumita | 2014 | World Journal of Gastroenterology2014，20，37： | 38 |
| 4 | Precision surgical approach with lymph-node dissection in early gastric cancer显示文摘The gravest prognostic factor in early gastric cancer is lymph-node metastasis,with an incidence of about 10% overall. About two-thirds of early gastric cancer patients can be diagnosed as node-negative prior to treatment based on clinicpathological data. Thus, the tumor can be resected by endoscopic submucosal dissection. In the remaining third, surgical resection is necessary because of the possibility of nodal metastasis. Nevertheless, almost all patients can be cured by gastrectomy with D1+ lymph-node dissection. Laparoscopic or robotic gastrectomy has become widespread in East Asia because perioperative and oncological safety are similar to open surgery. However, after D1+ gastrectomy,functional symptoms may still result. Physicians must strive to minimize postgastrectomy symptoms and optimize long-term quality of life after this operation.Depending on the location and size of the primary lesion, preservation of the pylorus or cardia should be considered. In addition, the extent of lymph-node dissection can be individualized, and significant gastric-volume preservation can be achieved if sentinel node biopsy is used to distinguish node-negative patients.Though the surgical treatment for early gastric cancer may be less radical than in the past, the operative method itself seems to be still in transition. | Shinichi Kinami Naohiko Nakamura Yasuto Tomita Takashi Miyata Hideto Fujita Nobuhiko Ueda Takeo Kosaka | 2019 | World Journal of Gastroenterology2019，25，14： | 21 |
| 5 | 比较内耳内淋巴显像和耳蜗电图及甘油试验在梅尼埃病诊断中的价值显示文摘目的:研究甘油试验、耳蜗电图、3T MRI在梅尼埃病(MD)患者中的关系。方法:评估20例患者,把稀释的钆造影剂通过鼓室注射入患者双侧的鼓室腔,24h后,通过3T MRI评估膜迷路积水的程度,此外为检测耳蜗积水,进行耳蜗电图和甘油试验。结果:经耳蜗电图检测,11例(55%)患者有阳性结果。经甘油试验检测,12例(60%)患者有阳性结果。同时采用甘油试验和耳蜗电图检测同一组患者时,75%的患者有阳性结果。用钆造影剂的3T MRI检查,19例(95%)患者有阳性结果。结论:与耳蜗电图及甘油试验检测相比,鼓室内注射钆造影剂的3T MRI,对内耳膜迷路积水的诊断更有价值。 | HISAKUNI FUKUOKA YUTAKA TAKUMI KEITA TSUKADA MAIKO MIYAGAWA TOMOHIRO OGUCHI HITOSHI UEDA MASUMI KADOYA SHIN-ICHI USAMI 张甦琳 孔维佳 | 2012 | 临床耳鼻咽喉头颈外科杂志2012，26，19： | 16 |
| 6 | Differential mucin phenotypes and their significance in a variation of colorectal carcinoma显示文摘AIM: To investigate mucin expression profiles in colorectal carcinoma (CRC) histological subtypes with regard to clinicopathologic variables and prognosis. METHODS: Mucin (MUC)2 and MUC5AC expressions were assessed by immunohistochemistry for a total of 250 CRC cases that underwent surgical resection. CRCs included 63 well-to-moderately differentiated adenocar-cinomas (WMDAs), 91 poorly differentiated adenocarcinomas (PDAs), 81 mucinous adenocarcinoma (MUAs), and 15 signet-ring cell carcinomas (SRCCs). MUC2 and MUC5AC were scored as positive when ≥ 25% and ≥ 1% of cancer cells were stained positive, respectively. The human mutL homolog 1 and human mutS homolog 2 expressions were assessed by immunohistochemistry in PDAs to investigate mismatch-repair (MMR) status.Tumors that did not express either of these two were considered MMR-deficient. Results were analyzed for associations with clinicopathologic variables and the prognosis in individual histological CRC subtypes. RESULTS: MUC2-positive and MUC5AC-positive WMDA percentages were 49.2% and 30.2%, respectively. In contrast, MUC2-positive and MUC5AC-positive PDA percentages were 9.5% and 51.6%, respectively. MUC2 levels tended to decrease and MUC5AC levels tended to increase from WMDA to PDA. In 21 tumors comprising both adenoma and adenocarcinoma components in a single tumor (4 WMDAs, 7 PDAs, and 10 MUAs), MUC2 was significantly downregulated in PDA and MUC5AC was downregulated in PDA and MUA in the adenoma-carcinoma sequence. These results suggested that MUC2 levels might be associated with malignant potential and that MUC5AC expression was an early event in tumorigenesis. Despite worse prognoses than WMDA, high MUC2 expression levels were maintained in MUA (95.1%) and SRCC (71.5%), which suggested a pathogenesis for these subtypes distinct from that of WMDA. No significant associations were found between MUC2 expression and any clinicopathologic variables in any histological subtype. MUC5AC expression in PDA was closely associated with right-sided location (P = 0.017), absence of nodal metastasis (P = 0.010), low tumor node metastasis stage (P = 0.010), and MMR deficiency (P = 0.003). MUC2 expression in WMDA was a marginal prognostic factor for recurrence/metastasis-free survival (RFS) by univariate Cox analysis (P = 0.077) but not by multivariate Cox analysis (P = 0.161). MUC5AC expression in PDA was a significant prognostic factor for RFS by univariate Cox analysis (P = 0.007) but not by multivariate Cox analysis (P = 0.104). Kaplan-Meier curves and log-rank tests revealed that MUC2 expression was marginally associated with a better WMDA prognosis [P = 0.064 for RFS and P = 0.172 for overall survival (OS)] but not for PDA. In contrast, MUC5AC expression was significantly and marginally associated with a better PDA prognosis in terms of RFS and OS, respectively(P = 0.004 for RFS and P = 0.100 for OS), but not for WMDA and MUA. CONCLUSION: Mucin core protein expression profiles and clinical significance differ according to histological CRC subtypes. This may reflect different pathogeneses for these tumors. | Yasuo Imai Hidetsugu Yamagishi Kazunori Fukuda Yuko Ono Tohru Inoue Yoshihiko Ueda | 2013 | World Journal of Gastroenterology2013，19，25： | 14 |
| 7 | 肝脏射频消融治疗:根据MRI铁羧葡胺廓清能力受损检测射频消融缘的可行性研究显示文摘本研究经过机构审查委员会批准,病人知情同意。目的是在肝脏射频消融术后,根据铁羧葡胺廓清能力受损情况,通过MRI显示肿瘤周围被烧蚀肝实质(消融缘)的可行性。21例肝癌病人在铁羧葡胺增强MRI后2~7h进行射频消融术。3~5d后的平扫T2*WI上,消融缘表现为低信号环。消融缘的表现与肿瘤残余率或复发率具有相关性。本技术在肝脏射频消融术后是可行的,能够显示消融缘,并可预测肿瘤残余或复发。 | K. Mori K. Fukuda H. Asaoka T. Ueda A. Kunimatsu Y. Okamoto 李瑞利(译) 沈文(校) | 2009 | 国际医学放射学杂志2009，32，4： | 13 |
| 8 | Differentiation of focal liver lesions using three-dimensional ultrasonography: Retrospective and prospective studies显示文摘AIM: To differentiate focal liver lesions based on enhancement patterns using three-dimensional ultrasonography (3D US) with perflubutane-based contrast agent.METHODS: Two hundred and eighty two patients with focal liver lesions,including 168 hepatocellular carcinomas (HCCs),63 metastases,40 hemangiomas and 11 focal nodular hyperplasias (FNHs),were examined by 3D US with perflubutane-based contrast agent.Tomographic ultrasound images and sonographic angiograms were reconstructed.Among 282 lesions,enhancement patterns of 163 lesions between January 2007 and October 2007 were analyzed retrospectively.Then from November 2007 to May 2008,compared with contrast-enhanced (CE) 2D US,CE 3D US was performed on 119 lesions for prospective differential diagnosis.Sensitivity,specificity,area under receiver operating characteristic curve (Az) and inter-reader agreement were assessed.RESULTS: With the tridimensional view,dominant enhancement patterns were revealed as diffuse enhancement or peripheral ring-like enhancement,followed with washout change for HCCs or metastases,respectively,and peripheral nodular enhancement or diffuse enhancement with spoke-wheel arteries,followed by persistent enhancement for hemangiomas or FNHs,respectively.At CE 3D US,the prospective differentiation of lesions showed sensitivity 92% (mean for two readers),specificity 91% and Az value 0.95 for HCCs,84%,97%,and 0.95 for metastases,91%,98%,and 0.98 for hemangiomas and 80%,99%,and 0.99 for FNHs,respectively,while good to excellent inter-reader agreement was achieved.No significant difference exists between prospective diagnosis accuracy at CE 3D US and that at CE 2D US.CONCLUSION: CE 3D US provides a spatial perspective for liver tumor enhancement,and could help in differentiating focal liver lesions. | Kazushi Numata Manabu Morimoto Akito Nozaki Michio Ueda Masaaki Kondo Satoshi Morita Katsuaki Tanaka | 2010 | World Journal of Gastroenterology2010，16，17： | 12 |
| 9 | Hyperglycemia is a significant prognostic factor of hepatocellular carcinoma after curative therapy显示文摘AIM:To evaluate whether metabolic factors are related to distant recurrence of hepatocellular carcinoma(HCC) and survival after curative treatment.METHODS:This retrospective study included 344 patients whose HCC was treated curatively by radiofrequency ablation(RFA) therapy.The mean age was 67.6 years and the mean observation period was 4.04 years.The etiological background of liver disease was hepatitis B virus infection in 30,hepatitis C virus infection in 278,excessive alcohol drinking in 9,and other in 27 patients.The Child-Pugh classification grade was A(n = 307) or B(n = 37).The number of HCC nodules was one in 260,two in 61,and three in 23 patients.For surveillance of HCC recurrence after curative therapy with RFA,patients were radiologically evaluated every 3 mo.Factors associated with distant recurrence of HCC or survival were studied.RESULTS:Inadequate maintenance of blood glucose in diabetic patients was associated with higher incidence of distant recurrence.The 1-,2-,and 3-year recurrence rates were significantly higher in diabetic patients with inadequate maintenance of blood glucose compared with the others:50.6% vs 26.8%,83.5% vs 54.4%,and 93.8% vs 73.0%,respectively(P = 0.0001).Inadequate maintenance of blood glucose was an independent predictor of distant recurrence [adjusted relative risk 1.97(95%CI,1.33-2.91),(P = 0.0007)] after adjustment for other risk factors,such as number of HCC nodules [2.03(95%CI,1.51-2.73),P < 0.0001] and initial level of serum alpha fetoprotein(AFP) [1.43(95%CI,1.04-1.97),P = 0.028].Obesity was not an independent predictor of recurrence.The incidence of distant recurrence did not differ between diabetic patients with adequate maintenance of blood glucose and non-diabetic patients.Among 232 patients who had HCC recurrence,138 had a second recurrence.The 1-,2-,and 3-year rates of second recurrence were significantly higher in diabetic patients with inadequate maintenance of blood glucose than in the others:9.0% vs 5.9%,53.1% vs 24.3%,and 69.6% vs 42.3%,respectively(P = 0.0021).Inadequate maintenance of blood glucose in diabetic patients [1.99(95%CI,1.23-3.22),P = 0.0049] and presence of multiple HCC nodules [1.53(95%CI,1.06-2.22),P = 0.024] were again significantly associated with second HCC recurrence.Inadequate maintenance of blood glucose in diabetic patients was also a significant predictor of poor survival [2.77(95%CI,1.38-5.57),P = 0.0046] independent of excessive alcohol drinking [6.34(95%CI,1.35-29.7),P = 0.019],initial level of serum AFP [3.40(95%CI,1.88-6.18),P < 0.0001] and Child-Pugh classification grade B [2.24(95%CI,1.12-4.46),P = 0.022].Comparing diabetic patients with inadequate maintenance of blood glucose vs the others,the 1-,2-,and 3-year survival rates were significantly lower in diabetic patients with inadequate maintenance of blood glucose:92% vs 99%,85% vs 96%,and 70% vs 92%,respectively(P = 0.0003).CONCLUSION:Inadequate maintenance of blood glucose in diabetic patients is a significant risk factor for recurrence of HCC and for poor survival after curative RFA therapy. | Takanori Hosokawa Masayuki Kurosaki Kaoru Tsuchiya Shuya Matsuda Masaru Muraoka Yuichiro Suzuki Nobuharu Tamaki Yutaka Yasui Toru Nakata Takashi Nishimura Shoko Suzuki Ken Ueda Hiroyuki Nakanishi Jun Itakura Yuka Takahashi Namiki Izumi | 2013 | World Journal of Gastroenterology2013，19，2： | 12 |
| 10 | Promoted differentiation of cynomolgus monkey ES cells into hepatocyte-like cells by co-culture with mouse fetal liver-derived cells显示文摘AIM: To explore whether a co-culture of cynomolgus monkey embryonic stem (cES) cells with embryonic liver cells could promote their differentiation into hepatocytes. METHODS: Mouse fetal liver-derived cells (MFLCs) were prepared as adherent cells from mouse embryos on embryonic d (ED) 14, after which undifferentiated cES cells were co-cultured with MFLCs. The induction of cES cells along a hepatic lineage was examined in MFLC- assisted differentiation, spontaneous differentiation, and growth factors (GF) and chemicals-induced differentiations (GF-induced differentiation) using retinoic acid, leukemia inhibitory factor (LIF), FGF2, FGF4, hepatocyte growth factor (HGF), oncostatin M (OSM), and dexamethasone. RESULTS: The mRNA expression of α-fetoprotein, albumin (ALB), α-1-antitrypsin, and hepatocyte nuclear factor 4α was observed earlier in the differentiating cES cells co-cultured with MFLCs, as compared to cES cells undergoing spontaneous differentiation and those subjected to GF-induced differentiation. The expression of cytochrome P450 7a1, a possible marker for embryonic endoderm-derived mature hepatocytes, was only observed in cES cells that had differentiated in a co-culture with MFLCs. Further, the disappearance of Oct3/4, a representative marker of an undifferentiated state, was noted in cells co-cultured with MFLCs, but not in those undergoing spontaneous or GF-induced differentiation. Immunocytochemical analysis revealed an increased ratio of ALB-immunopositive cells among cES cells co-cultured with MFLCs, while glycogen storageand urea synthesis were also demonstrated. CONCLUSION: MFLCs showed an ability to induce cES cells to differentiate toward hepatocytes. The co-culture system with MFLCs is a useful method for induction of hepatocyte-like cells from undifferentiated cES cells. | Ko Saito Masahide Yoshikawa Yukiteru Ouji Kei Moriya Mariko Nishiofuku Shigehiko Ueda Noriko Hayashi Shigeaki Ishizaka Hiroshi Fukui | 2006 | World Journal of Gastroenterology2006，12，42： | 11 |
| 11 | Mechanisms of Salt Tolerance in Transgenic Arabidopsis thaliana Carrying a Peroxisomal Ascorbate Peroxidase Gene from Barley显示文摘Ascorbate peroxidases (APX), localized in the cytosol, peroxisome, mitochondria, and chloroplasts of plant cells, catalyze the reduction of H2O2 to water by using ascorbic acid as the specific electron donor. To determine the role of peroxisomal type ascorbate peroxidase (pAPX), an antioxidant enzyme, in protection against salt-induced oxidative stress, transgenic Arabidopsis thaliana plant carrying a pAPX gene (HvAPX1) from barley (Hordeum vulgare L.) was analyzed. The transgenic line pAPX3 was found to be more tolerant to salt stress than the wild type. Irrespective of salt stress, there were no significant differences in Na+, K+, Ca2+, and Mg2+ contents and the ratio of K+ to Na+ between pAPX3 and the wild type. Clearly, the salt tolerance in pAPX3 was not due to the maintenance and reestablishment of cellular ion homeostasis. However, the degree of H2O2 and lipid peroxidation (measured as the levels of malondialdehyde) accumulation under salt stress was higher in the wild type than in pAPX3. The mechanism of salt tolerance in transgenic pAPX3 can thus be explained by reduction of oxidative stress injury. Under all conditions tested, activities of superoxide, glutathione reductase, and catalase were not significantly different between pAPX3 and the wild type. In contrast, the activity of APX was significantly higher in the transgenic plant than in wild type under salt stress. These results suggested that in higher plants, HvAPX1 played an important role in salt tolerance and was a candidate gene for developing salt-tolerant crop plants. | XU Wei-Feng SHI Wei-Ming A. UEDA T. TAKABE | 2008 | Pedosphere2008，18，4： | 9 |
| 12 | Differentiation of embryonic stem cells into insulin-producing cells promoted by Nkx2.2 gene transfer显示文摘AIM: To investigate the ability of a genetically altered embryonic stem (ES) cell line to generate insulin-producing cells in vitro following transfer of the Nkx2.2 gene.METHODS: Hamster Nkx2.2 genes were transferred into mouse ES cells. Parental and Nkx2.2-transfected ES cells were initiated toward differentiation in embryoid body (EB)culture for 5 d and the resulting EBs were transferred to an attached culture system. Dithizone (DTZ), a zincchelating agent known to selectively stain pancreatic beta cells, was used to detect insulin-producing cells.The outgrowths were incubated in DTZ solution (final concentration, 100 μg/mL) for 15 min before being examined microscopically. Gene expression of the endocrine pancreatic markers was also analyzed by RT-PCR. In addition, insulin production was determined immunohistochemically and its secretion was examined using an ELISA.RESULTS: DTZ-stained cellular clusters appeared after approximately 14 d in the culture of Nkx2.2-transfected ES cells (Nkx-ES cells), which was as much as 2 wk earlier, than those in the culture of parental ES cells (wt-ES). The frequency of DTZ-positive cells among total cultured cells on day 28 accounted for approximately 1.0% and 0.1% of the Nkx-ES- and wt-ES-derived EB outgrowths, respectively. The DTZ-positive cellular clusters were found to be immunoreactive to insulin, while the gene expressions of pancreatic-duodenal homeobox 1(PDX1), proinsulin 1 and proinsulin 2 were observed in the cultures that contained DTZ-positive cellular clusters.Insulin secretion was also confirmed by ELISA, whereas glucose-dependent secretion was not demonstrated.CONCLUSION: Nkx2.2-transfected ES cells showed an ability to differentiate into insulin-producing cells. | Akira Shiroi Shigehiko Ueda Yukiteru Ouji Ko Saito Kei Moriya Yuko Sugie Hiroshi Fukui Shigeaki Ishizaka Masahide Yoshikawa | 2005 | World Journal of Gastroenterology2005，11，27： | 9 |
| 13 | Evaluation of the relationship between hepatocellular carcinoma location and transarterial chemoembolization efficacy显示文摘AIM To evaluate the relationship between the location of hepatocellular carcinoma(HCC) and the efficacy of transarterial chemoembolization(TACE).METHODS We evaluated 115 patients(127 nodules), excluding recurrent nodules, treated with TACE between January 2011 and June 2014. TACE efficacy was evaluated according to m RECIST. The HCC location coefficient was calculated as the distance from the central portal portion to the HCC center(mm)/liver diameter(mm) on multiplanar reconstruction images rendered(MPR) to visualize bifurcation of the right and left branches of the portal vein and HCC center. The HCC location coefficient was compared between complete response(CR) and non-CR groups in Child-Pugh grade A and B patients.RESULTS The median location coefficient of HCC among all nodules, the right lobe, and the medial segment was significantly higher in the CR group than in the non-CR group in the Child-Pugh grade A patients(0.82 vs 0.62, P < 0.001; 0.71 vs 0.59, P < 0.01; 0.81 vs 0.49, P < 0.05, respectively). However, there was no significant difference in the median location coefficient of the HCC in the lateral segment between in the CR and in the non-CR groups(0.67 vs 0.65, P > 0.05). On the other hand, in the Child-Pugh grade B patients, the HCC median location coefficient in each lobe and segment was not significantly different between in the CR and in the non-CR groups.CONCLUSION Improved TACE efficacy may be obtained for HCC in the peripheral zone of the right lobe and the medial segment in Child-Pugh grade A patients. | Izumi Miki Satoru Murata Fumio Uchiyama Daisuke Yasui Tatsuo Ueda Fumie Sugihara Hidemasa Saito Hidenori Yamaguchi Ryusuke Murakami Chiaki Kawamoto Eiji Uchida Shin-ichiro Kumita | 2017 | World Journal of Gastroenterology2017，23，35： | 8 |
| 14 | Coronary spasm: It's common, but it's still unsolved显示文摘Coronary spasm is caused by a transient coronary nar -rowing due to the constriction of epicardial coronary artery, which leads to myocardial ischemia. More than 50 years have passed since the first recognition of coronary spasm, and many findings on coronary spasm have been reported. Coronary spasm has been considered as having pivotal roles in the cause of not only rest angina but also exertional angina, acute coronary syndrome, and heart failure. In addition, several new findings of the mechanism of coronary spasm have emerged recently. The diagnosis based mainly on coronary angiography and spasm provo-cation test and the mainstream treatment with a focus on a calcium-channel blocker have been established. At a glance, coronary spasm or vasospastic angina(VSA) has become a common disease. On the contrary, there are several uncertain or unsolved problems regarding coronary spasm, including the presence of medically refractory coronary spasm(intractable VSA), or an appropriate use of implantable cardioverter defibrillator in patients with cardiac arrest who have been confirmed as having coronary spasm. This editorial focused on coronary spasm, including recent topics and unsolved problems. | Hiroki Teragawa Chikage Oshita Tomohiro Ueda | 2018 | World Journal of Cardiology2018，10，11： | 7 |
| 15 | Luminescence of Er^(3+) in Oxyfluoride Transparent Glass-Ceramics显示文摘Erbium doped silicate, germanate, and tellurium-germanate oxyfluoride glasses were prepared in a bulk form. Through appropriate heat treatment of the as-prepared glasses, transparent glass-ceramics (TGCs) were obtained with the formation of β-PbF2∶Er 3+ nanocrystals in the glass matrix were confirmed by X-ray diffraction. Well-defined diffraction peaks were observed in the samples after heat-treatment. The average crystal diameter of these precipitated crystals from full-width at half-maximum (FWHM) of the diffraction peak was estimated to be between 8 and 13 nm. Optical absorption, photoluminescence, and upconversion luminescence were measured on as-prepared glass and glass-ceramics. Luminescence spectra in the TGC samples revealed well-resolved, sharp stark-splitting peaks, which indicates that a majority of Er 3+ ions has been incorporated into the crystalline phase of the nanocrystals. The intensity of the visible and near infrared luminescence mostly increases in TSG compared to that in the as-prepared glass. In 1.53 μm absorption and emission bands, the maximum absorption peak is blue-shifted from 1531 to 1507 nm, whereas the maximum emission peak is red-shifted from 1535 to 1543 nm in TGC, as compared with that in glass. The bandwidth at half-maximum (BWHM) of the emission band is significantly broader in TGC than in glass, which is beneficial to the erbium-doped fiber amplifier (EDFA). Upconversion luminescence was measured using 800 nm near-infrared light excitation. Drastically increased upconversion luminescence was observed from the TGC as compared to that from their corresponding as-prepared glasses. In addition to a strong green emission centered at 545 nm because of 4S 3/2 →4I 15/2 transition and a weaker red emission centered at 662 nm because of 4F 9/2 →4I 15/2 transition, generally seen from the Er 3+ doped glasses, two violet emissions centered at 410 nm because of 2H 9/2 →4I 15/2 transition and centered at 379 nm because of 4G 11/2 →4I 15/2 transition were also observed from the TGC. The increased luminescence was attributed to the decreased effective phonon energy and the increased energy transfer between the excited ions when Er 3+ ions were incorporated into the precipitated β-PbF2 nanocrystals. The results indicated two attractive spectroscopic properties of the Er 3+ doped TGC samples, compared to glass samples, namely a reduced multiphonon decay rate and a reduced inhomogeneous broadening. In addition, these oxyfluoride TGC materials were robust, easy and flexibile to process, and possible to be fabricated in the fiber form for device applications. | Akira Ueda Steven H Morgan Richard Mu | 2006 | Journal of Rare Earths2006，24，6： | 7 |
| 16 | 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 |
| 17 | End-to-end and end-to-side neurorrhaphy between thick donor nerves and thin recipient nerves:an axon regeneration study in a rat model显示文摘During nerve reconstruction,nerves of different thicknesses are often sutured together using end-to-side neurorrhaphy and end-to-end neurorrhaphy techniques.In this study,the effect of the type of neurorrhaphy on the number and diameter of regenerated axon fibers was studied in a rat facial nerve repair model.An inflow-type end-to-side and end-to-end neurorrhaphy model with nerve stumps of different thicknesses(2:1 diameter ratio) was created in the facial nerve of 14 adult male Sprague-Dawley rats.After 6 and 12 weeks,nerve regeneration was evaluated in the rats using the following outcomes:total number of myelinated axons,average minor axis diameter of the myelinated axons in the central and peripheral sections,and axon regeneration rate.End-to-end neurorrhaphy resulted in a significantly greater number of regenerated myelinated axons and rate of regeneration after 6 weeks than end-to-side neurorrhaphy;however,no such differences were observed at 12 weeks.While the regenerated axons were thicker at 12 weeks than at 6 weeks,no significant differences in axon fiber thickness were detected between end-to-end and end-toside neurorrhaphy.Thus,end-to-end neurorrhaphy resulted in greater numbers of regenerated axons and increased axon regeneration rate during the early postoperative period.As rapid reinnervation is one of the most important factors influencing the restoration of target muscle function,we conclude that end-to-end neurorrhaphy is desirable when suturing thick nerves to thin nerves. | Tohru Tateshita Kazuki Ueda Akiyoshi Kajikawa | 2018 | Neural Regeneration Research2018，13，4： | 5 |
| 18 | Endovascular treatment of post-laparoscopic pancreatectomy splenic arteriovenous fistula with splenic vein aneurysm显示文摘Splenic arteriovenous fistulas(SAVFs) with splenic vein aneurysms are extremely rare entities. There have been no prior reports of SAVFs developing after laparoscopic pancreatectomy. Here, we report the first case. A 40-year-old man underwent a laparoscopic, spleen-preserving, distal pancreatectomy for an endocrine neoplasm of the pancreatic tail. Three months after surgery, a computed tomography(CT) scan demonstrated an SAVF with a dilated splenic vein. The SAVF, together with the splenic vein aneurysm, was successfully treated using percutaneous transarterial coil embolization of the splenic artery, including the SAVF and drainage vein. After the endovascular treatment, the patient's recovery was uneventful. He was discharged on postoperative day 6 and continues to be well 3 mo after discharge. An abdominal CT scan performed at his 3-mo follow-up demonstrated complete thrombosis of the splenic vein aneurysm, which had decreased to a 40 mm diameter. This is the first reported case of SAVF following a laparoscopic pancreatectomy and demonstrates the usefulness of endovascular treatment for this type of complication. | Tatsuo Ueda Satoru Murata Akira Yamamoto Jin Tamai Yuko Kobayashi Chiaki Hiranuma Hiroshi Yoshida Shin-ichiro Kumita | 2015 | World Journal of Gastroenterology2015，21，25： | 5 |
| 19 | Involvement of the TAGE-RAGE system in non-alcoholic steatohepatitis: Novel treatment strategies显示文摘Non-alcoholic fatty liver disease(NAFLD)is a major cause of liver disease around the world.It includes a spectrum of conditions from simple steatosis to non-alcoholic steatohepatitis(NASH)and can lead to fibrosis,cirrhosis,liver failure,and/or hepatocellular carcinoma.NAFLD is also associated with other medical conditions such as obesity,diabetes mellitus(DM),metabolic syn-drome,hypertension,insulin resistance,hyperlipidemia,and cardiovascular disease(CVD).In diabetes,chronic hyperglycemia contributes to the development of both macro-and microvascular conditions through a variety of metabolic pathways.Thus,it can cause a variety of metabolic and hemodynamic conditions,including upregulated advanced glycation end-products(AGEs)synthesis.In our previous study,the most abundant type of toxic AGEs(TAGE);i.e.,glyceraldehyde-derived AGEs,were found to make a significant contribution to the pathogenesis of DM-induced angiopathy.Furthermore,accumulating evidence suggests that the binding of TAGE with their receptor(RAGE)induces oxidative damage,promotes inflammation,and causes changes in intracellular signaling and the expression levels of certain genes in various cell populations including hepatocytes and hepatic stellate cells.All of these effects could facilitate the pathogenesis of hypertension,cancer,diabetic vascular complications,CVD,dementia,and NASH.Thus,inhibiting TAGE synthesis,preventing TAGE from binding to RAGE,and downregulating RAGE expression and/or the expression of associated effector molecules all have potential as therapeutic strategies against NASH.Here,we examine the contributions of RAGE and TAGE to various conditions and novel treatments that target them in order to prevent the development and/or progression of NASH. | Masayoshi Takeuchi Jun-ichi Takino Akiko Sakasai-Sakai Takanobu Takata Tadashi Ueda Mikihiro Tsutsumi Hideyuki Hyogo Sho-ichi Yamagishi | 2014 | World Journal of Hepatology2014，6，12： | 5 |
| 20 | Pseudomembranous colitis presenting as acute colonic obstruction without diarrhea in a patient with gastric Burkitt lymphoma显示文摘Pseudomembranous colitis (PMC) usually manifests asfever and diarrhea in hospitalized patients treated withsystemic antibiotics. We described a case of PMC withintestinal obstruction but without diarrhea. A 60-yearold man was hospitalized for chemotherapy for the treatment of Burkitt lymphoma of the stomach. The patient became febrile and complained of crampy abdominal pain during the post-chemotherapy nadir. Plain abdominal radiography showed some intestinal gas and niveau. Because stool cytotoxin assay for clostridium difficile was positive and colon fiberscopic examination showed a pseudomembrane at the left side of the colon,and a diagnosis of PMC was made. Treatment with intracolonic vancomycin administration by colonoscopy and nasoileus tube was successful. Physicians should take into account the possibility of bowel obstruction due to PMC occurring in patients undergoing chemotherapy and perform emergency colonoscopy examination of suspected cases. | Kenichi Nomura Kohei Fukumoto Daisuke Shimizu Takashi Okuda Naohisa Yoshida Yuri Kamitsuji Yosuke Matsumoto Hideyuki Konishi Yuji Ueda Shigeo Horiike Takeshi Okanoue Masafumi Taniwaki | 2005 | World Journal of Gastroenterology2005，11，17： | 5 |
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