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1Therapeutic response assessment of RFA for HCC:Contrast-enhanced US,CT and MRI显示文摘Radiofrequency ablation(RFA)is commonly applied for the treatment of hepatocellular carcinoma(HCC)because of the facile procedure,and the safety and effectiveness for the treatment of this type of tumor.On the other hand,it is believed that HCC cells should spread predominantly through the blood flow of the portal vein,which could lead to the formation of intrahepatic micrometastases.Therefore,monitoring tumor response after the treatment is quite important and accurate assessment of treatment response is critical to obtain the most favorable outcome after the RFA.Indeed,several reports suggested that even small HCCs of≤3 cm in diameter might carry intrahepatic micrometastases and/or microvascular invasion.From this point of view,for preventing local recurrences,RFA should be performed ablating a main tumor as well as its surrounding non-tumorous liver tissue where micrometastases and microvascular invasion might exist.Recent advancement of imaging modalities such as contrast-enhanced ultrasonic,computed tomography,and magnetic resonance imaging are playing an important role on assessing the therapeutic effects of RFA.The local recurrence rate tends to be low in HCC patients who were proven to have adequate ablation margin after RFA;namely,not only disappearance of vascular enhancement of main tumor,but also an adequate ablation margin.Therefore,contrast enhancement gives important findings for the diagnosis of recurrent HCCs on each imaging.However,hyperemia of non-tumorous liver surrounding the ablated lesion,which could be attributed to an inflammation after RFA,may well obscure the findings of local recurrence of HCCs after RFA.Therefore,we need to carefully address to these imaging findings given the fact that diagnostic difficulties of local recurrence of HCC.Here,we give an overview of the current status of the imaging assessment of HCC response to RFA.Yasunori Minami Naoshi Nishida Masatoshi Kudo 2014World Journal of Gastroenterology2014,20,15:26
2Mucosal cytokine network in inflammatory bowel disease显示文摘Inflammatory bowel disease (IBD), ulcerative colitis (UC) and Crohn's disease (CD) are characterized by ongoing mucosal inflammation in which dysfunction of the host immunologic response against dietary factors and commensal bacteria is involved. The chronic in-flammatory process leads to disruption of the epithelial barrier, and the formation of epithelial ulceration. This permits easy access for the luminal microbiota and dietary antigens to cells resident in the lamina pro-pria, and stimulates further pathological immune cell responses. Cytokines are essential mediators of the interactions between activated immune cells and non-immune cells, including epithelial and mesenchymal cells. The clinical efficacy of targeting TNF-α clearly indicates that cytokines are the therapeutic targets in IBD patients. In this manuscript, we focus on the bio-logical activities of recently-reported cytokines [Inter-leukin (IL)-17 cytokine family, IL-31 and IL-32], which might play a role through interaction with TNF-α in the pathophysiology of IBD.Akira Andoh Yuhki Yagi Makoto Shioya Atsushi Nishida Tomoyuki Tsujikawa Yoshihide Fujiyama 2008World Journal of Gastroenterology2008,14,33:21
3Treatment strategy for gastric non-invasive intraepithelial neoplasia diagnosed by endoscopic biopsy显示文摘Treatment strategies,whether as follow-up or'total incisional biopsy'for gastric noninvasive intraepithelial neoplasia diagnosed by examination of an endoscopic forceps biopsy specimen,are controversial due to problems associated with the diagnostic accuracy of endoscopic forceps biopsy and questions about the safety and efficacy of endoscopic treatment.Based on the histological findings of the biopsy specimen,it is difficult to differentiate between reactive or regenerative changes,inflammation and neoplastic changes,intraepithelial and invasive tumors.Therefore,gastric neoplasia diagnosed as noninvasive intraepithelial often develop into invasive carcinoma during follow-up.Recent advances in endoscopic modalities and treatment devices,such as image-enhanced endoscopy and highfrequency generators,may make endoscopic treatment,such as endoscopic submucosal dissection(ESD),a therapeutic option for gastric intraepithelial neoplasia,including low-grade neoplasms.Future studies are required to evaluate whether ESD is a valid strategy for gastric intraepithelial neoplasm with regard to safety and cost effectiveness.Tsutomu Nishida Shusaku Tsutsui Motohiko Kato Takuya Inoue Shunsuke Yamamoto Yoshito Hayashi Tomofumi Akasaka Takuya Yamada Shinichiro Shinzaki Hideki Iijima Masahiko Tsujii Tetsuo Takehara 2011World Journal of Gastrointestinal Pathophysiology2011,2,6:18
4Intraductal neoplasm of the intrahepatic bile duct: Clinicopathological study of 24 cases显示文摘AIM: To investigate the clinicopathological features of intraductal neoplasm of the intrahepatic bile duct (INihB). METHODS: Clinicopathological features of 24 cases of INihB, which were previously diagnosed as biliary papillomatosis or intraductal growth of intrahepatic biliary neoplasm, were reviewed. Mucin immunohistochemistry was performed for mucin (MUC)1, MUC2, MUC5AC and MUC6. Ki-67, P53 and β-catenin immunoreactivity were also examined. We categorized each tumor as adenoma (low grade), borderline (intermediate grade), and malignant (carcinoma in situ , high grade including tumors with microinvasion). RESULTS: Among 24 cases of INihB, we identified 24 tumors. Twenty of 24 tumors (83%) were composed of a papillary structure; the same feature observed in intraductal papillary neoplasm of the bile duct (IPNB). In contrast, the remaining four tumors (17%) showed both tubular and papillary structures. In three of the four tumors (75%), macroscopic mucin secretion was limited but microscopic intracellular mucin was evident. Histologically, 16 tumors (67%) were malignant, three (12%) were borderline, and five (21%) were adenoma. Microinvasion was found in four cases (17%). Immunohistochemical analysis revealed that MUC1 was not expressed in the borderline/adenoma group but was expressed only in malignant lesions (P = 0.0095). Ki-67 labeling index (LI) was significantly higher in the malignant group than in the borderline/adenoma group (22.2 ± 15.5 vs 7.5 ± 6.3, P < 0.01). In the 16 malignant cases, expression of MUC5AC showed borderline significant association with high Ki-67 LI (P = 0.0622). Nuclear expression of β-catenin was observed in two (8%) of the 24 tumors, and these two tumors also showed MUC1 expression. P53 was negative in all tumors. CONCLUSION: Some cases of INihB have a tubular structure, and are subcategorized as IPNB with tubular structure. MUC1 expression in INihB correlates positively with degree of malignancy.Yoshiki Naito Hironori Kusano Osamu Nakashima Eiji Sadashima Satoshi Hattori Tomoki Taira Akihiko Kawahara Yoshinobu Okabe Kazuhide Shimamatsu Jun Taguchi Seiya Momosaki Koji Irie Rin Yamaguchi Hiroshi Yokomizo Michiko Nagamine Seiji Fukuda Shinichi Sugiyama Naoyo Nishida Koichi Higaki Munehiro Yoshitomi Masafumi Yasunaga Koji Okuda Hisafumi Kinoshita Masayoshi Kage Masamichi Nakayama Makiko Yasumoto Jun Akiba Hirohisa Yano 2012World Journal of Gastroenterology2012,18,28:16
5Endoscopic ultrasound-guided gallbladder drainage for acute cholecystitis: Long-term outcomes after removal of a self-expandable metal stent显示文摘AIM To assess the long-term outcomes of this procedure after removal of self-expandable metal stent(SEMS). The efficacy and safety of endoscopic ultrasoundguided gallbladder drainage(EUS-GBD) with SEMS were also assessed.METHODS Between January 2010 and April 2015, 12 patients with acute calculous cholecystitis, who were deemed unsuitable for cholecystectomy, underwent EUSGBD with a SEMS. EUS-GBD was performed under the guidance of EUS and fluoroscopy, by puncturing the gallbladder with a needle, inserting a guidewire, dilating the puncture hole, and placing a SEMS. TheSEMS was removed and/or replaced with a 7-Fr plastic pigtail stent after cholecystitis improved. The technical and clinical success rates, adverse event rate, and recurrence rate were all measured.RESULTS The rates of technical success, clinical success, and adverse events were 100%, 100%, and 0%, respectively. After cholecystitis improved, the SEMS was removed without replacement in eight patients, whereas it was replaced with a 7-Fr pigtail stent in four patients. Recurrence was seen in one patient(8.3%) who did not receive a replacement pigtail stent. The median follow-up period after EUS-GBD was 304 d(78-1492).CONCLUSION EUS-GBD with a SEMS is a possible alternative treatment for acute cholecystitis. Long-term outcomes after removal of the SEMS were excellent. Removal of the SEMS at 4-wk after SEMS placement and improvement of symptoms might avoid migration of the stent and recurrence of cholecystitis due to food impaction.Ken Kamata Mamoru Takenaka Masayuki Kitano Shunsuke Omoto Takeshi Miyata Kosuke Minaga Kentaro Yamao Hajime Imai Toshiharu Sakurai Tomohiro Watanabe Naoshi Nishida Masatoshi Kudo 2017World Journal of Gastroenterology2017,23,4:15
6Comparative study of esomeprazole and lansoprazole in triple therapy for eradication of Helicobacter pylori in Japan显示文摘AIM:To evaluate the efficacy and safety of esomeprazole-based triple therapy compared with lansoprazole therapy as first-line eradication therapy for patients with Helicobacter pylori(H.pylori)in usual post-marketing use in Japan,where the clarithromycin(CAM)resistance rate is 30%.METHODS:For this multicenter,randomized,openlabel,non-inferiority trial,we recruited patients(≥20years of age)with H.pylori infection from 20 hospitals in Japan.We randomly allocated patients to esomeprazole therapy(esomeprazole 20 mg,CAM 400 mg,amoxicillin(AC)750 mg for the first 7 d,with all drugs given twice daily)or lansoprazole therapy(lansoprazole30 mg,CAM 400 mg,AC 750 mg for the first 7 d,with all drugs given twice daily)using a minimization method with age,sex,and institution as adjustment factors.Our primary outcome was the eradication rate by intention-to-treat(ITT)and per-protocol(PP)analyses.H.pylori eradication was confirmed by a urea breath test from 4 to 8 wk after cessation of therapy.RESULTS:ITT analysis revealed the eradication rates of 69.4%(95%CI:61.2%-76.6%)for esomeprazole therapy and 73.9%(95%CI:65.9%-80.6%)for lansoprazole therapy(P=0.4982).PP analysis showed eradication rate of 76.9%(95%CI:68.6%-83.5%)for esomeprazole therapy and 79.8%(95%CI:71.9%-86.0%)for lansoprazole therapy(P=0.6423).There were no differences in adverse effects between the two therapies.CONCLUSION:Esomeprazole showed non-inferiority and safety in a 7 day-triple therapy for eradication of H.pylori compared with lansoprazole.Tsutomu Nishida Masahiko Tsujii Hirohisa Tanimura Shusaku Tsutsui Shingo Tsuji Akira Takeda Atsuo Inoue Hiroyuki Fukui Toshiyuki Yoshio Osamu Kishida Hiroyuki Ogawa Masahide Oshita Ichizo Kobayashi Shinichiro Zushi Makoto Ichiba Naoto Uenoyama Yuichi Yasunaga Ryu Ishihara Mamoru Yura Masato Komori Satoshi Egawa Hideki Iijima Tetsuo Takehara 2014World Journal of Gastroenterology2014,20,15:13
7Antiviral therapy for chronic hepatitis B: Combination of nucleoside analogs and interferon显示文摘The ideal goal of chronic hepatitis B(CHB) treatment should be suppression of emergence of hepatocellular carcinoma through the disappearance of hepatitis B s antigen(HBs Ag) rather than the control of serum hepatitis B virus-DNA level. For this purpose, various types of combination therapies using nucleoside analogs(NAs) and interferon(IFN) have been conducted. The therapeutic effects of combination of two different kinds of agents are better than those of the monotherapy using NAs or IFN alone, probably because different pharmaceutical properties might act in a coordinated manner. Recently, combination therapies with NAs and IFN and sequential therapies with NAs administration followed by IFN therapy have been routinely employed. We previously reported that combination therapy using entecavir(ETV) and pegylated(PEG)-IFN showed antiviral effects in 71% of CHB patients; the effect of this combination was better than that using lamivudine(LAM) and PEG-IFN. This is partially explained by the better antiviral effects of ETV than those of LAM. In our analysis, the cohort of CHB consisted of the patients who showed a flare-up of hepatitis before antiviral therapy, and their baseline HBs Ag levels were relatively low. Therefore, in addition to the combination of the agents, the appropriate selection of patients is critical to achieve a good viral response.Satoru Hagiwara Naoshi Nishida Masatoshi Kudo 2015World Journal of Hepatology2015,7,23:11
8Late Cretaceous biota and the Cretaceous-Paleogene(K--Pg)Boundary in Jiayin of Heilongjiang,China显示文摘An international cooperative study of the Late Cretaceous biota and non-marine strata including the Cretaceous-Paleogene(K--Pg) boundary in Jiayin near the Heilongjiang River,China during 2002-2010,is summarized in this paper. The strata includes the Upper Cretaceous Yong'ancun-,Taipinglinchang-,Yuliang-zi-,and Furao formations,and the Paleocence Wuyun Formation consisting of Baoshantou Member and a Coalbearing Member. Seven palynological assemblages from Santonian to Paleocene are recognized,which is used for definition of the K--Pg boundary. Through the palynological analysis of three drilled boreholes (XHY-2005,2006,2008) in Xiaoheyan of western Jiayin,the K--Pg boundary is defined within 20. 00-20. 05 m in the borehole XHY-2006 (as a standard boundary) which is just between the top of Furao Formation (late Maasterichtian) and the base of Baishantou Member (early Danian) . These new research results are supported by paleo- magnetic,geochemical and other analyses,also. On the other hand,the presence of eight taxa of Maasterichtian dinosaurs (mostly hadrosaurids) have been recognized by the authors; and two mega-plant assemblages from the Yong'ancun Fm (Santonian) to Taipinglinchang Fm (Campanian) are confirmed. These research a-chievements indicate that the Upper Cretaceous-Paleocene in Jiayin can be well correlated to the strata in the neighboring Zeya-Bureja basin,Russia. The K--Pg boundary definited in Jiayin is the first well documented non-marine K--Pg boundary in China. Also the related paleoclimate,paleoenvironment and the mass extinctions in this area during the Cretaceous-Paleocene transition are also discussed.Sun G. Akhmetiev M. Markevich V. Ashraf A. R. Bugdaeva E. Godefroit P. Bolotsky Yu. Dong Z. M. Golovneva L. Yang H. X. Sun C. L. Sun Y. W. Quan C. Kodrul T. Kezina T. Johnson K. Nishida H Dilcher D. L. Harding I. Chen Y. J. 2011Global Geology2011,14,3:9
9Colorectal endoscopic submucosal dissection: Recent technical advances for safe and successful procedures显示文摘Endoscopic submucosal dissection(ESD) is very useful in en bloc resection of large superficial colorectal tumors but is a technically difficult procedure because the colonic wall is thin and endoscopic maneuverability is poor because of colonic flexure and extensibility. A high risk of perforation has been reported in colorectal ESD. To prevent complications such as perforation and unexpected bleeding, it is crucial to ensure good visualization of the submucosal layer by creating a mucosal flap, which is an exfoliated mucosa for inserting the tip of the endoscope under it. The creation of a mucosal flap is often technically difficult; however, various types of equipment, appropriate strategy, and novel procedures including our clip-flap method, appear to facilitate mucosal flap creation, improving the safety and success rate of ESD. Favorable treatment outcomes with colorectal ESD have already been reported in many advanced institutions, and appropriate understanding of techniques and development of training systems are required for world-wide standardization of colorectal ESD. Here, we describe recent technical advances for safe and successful colorectal ESD.Katsumi Yamamoto Tomoki Michida Tsutomu Nishida Shiro Hayashi Masafumi Naito Toshifumi Ito 2015World Journal of Gastrointestinal Endoscopy2015,7,14:9
10Improving corrosion resistance of RE-containing magnesium alloy ZE41A through ECAP显示文摘Significant grain refinement was achieved in rare earth (RE) containing aeronautic magnesium alloy ZE41A through equal-channel angular pressing (ECAP) using rotary die at 603 K. Influence of ECAP pass number on its microstructure change and corrosion behavior was investigated by optical microscope (OM)/scanning electron microscope (SEM) observation and potentiostatic polarization tests in aqueous solution of NaCl, respectively. The results showed that ultrafine equiaxial grains (about 2.5 μm) were obtained over 16 passes due to plastic-induced grain refinement accommodated by dynamic recrystallization. The lower corrosion current density and nobler corrosion potential correlated with large number of pressing passes were attributed to the low tendency toward localized corrosion with broken secondary phase after homogenization on ultrafine-grained Mg matrix. The multi-pass ECAP method made the ZE41A aeronautic magnesium alloy more attractive since severe plastic deformation may significantly improve its corrosion resistance besides superior mechanical properties.江静华 马爱斌 SAITO Naobumi 沈志欣 宋丹 卢富敏 Yoshinori NISHIDA 杨东辉 林萍华 2009Journal of Rare Earths2009,27,5:8
11Expression of Interleukin-26 is upregulated in inflammatory bowel disease显示文摘AIM To investigate interleukin(IL)-26 expression in the inflamed mucosa of patients with inflammatory bowel disease(IBD) and the function of IL-26. METHODS Human colonic subepithelial myofibroblasts(SEMFs) were isolated from colon tissue surgically resected. The expression of IL-26 protein and its receptor complex was analyzed by immunohistochemistry. The gene expression induced by IL-26 was evaluated by realtime polymerase chain reaction. Intracellular signaling pathways were evaluated by immunoblotting and specific small interfering(si) RNA transfection. RESULTS The m RNA and protein expression of IL-26 were significantly enhanced in the inflamed mucosa of patients with IBD. IL-26 receptor complex was expressed in colonic SEMFs in vivo and in vitro. IL-26 stimulated the m RNA expression of IL-6 and IL-8 in colonic SEMFs. The inhibitors of mitogen-activated protein kinases and phosphoinositide 3-kinase, and si RNAs for signal transducers and activator of transcription 1/3, nuclear factor-kappa B and activator protein-1 significantly reduced the m RNA expression of IL-6 and IL-8 induced by IL-26.CONCLUSION These results suggest that IL-26 plays a role in the pathophysiology of IBD through induction of inflammatory mediators.Makoto Fujii Atsushi Nishida Hirotsugu Imaeda Masashi Ohno Kyohei Nishino Shigeki Sakai Osamu Inatomi Shigeki Bamba Masahiro Kawahara Tomoharu Shimizu Akira Andoh 2017World Journal of Gastroenterology2017,23,30:8
12Efficacy of an orally active small-molecule inhibitor of RANKL in bone metastasis显示文摘Bone is one of the preferred sites for the metastasis of malignant tumours,such as breast cancer,lung cancer and malignant melanoma.Tumour cells colonizing bone have the capacity to induce the expression of receptor activator of nuclear factor-κB ligand(RANKL),which promotes osteoclast differentiation and activation.Tumour-induced osteoclastic bone resorption leads to a vicious cycle between tumours and bone cells that fuels osteolytic tumour growth,causing bone pain and hypercalcaemia.Furthermore,RANKL contributes to bone metastasis by acting as a chemoattractant to bone for tumour cells that express its receptor,RANK.Thus inhibition of the RANKL–RANK pathway is a promising treatment for bone metastasis,and a human monoclonal anti-RANKL antibody,denosumab,has been used in the clinic.However,orally available drugs targeting RANKL must be developed to increase the therapeutic benefits to patients.Here we report the efficacy of the small-molecule RANKL inhibitor AS2676293 in treating bone metastasis using mouse models.Oral administration of AS2676293 markedly inhibited bone metastasis of human breast cancer cells MDA-MB-231-5a-D-Luc2 as well as tumour-induced osteolysis.AS2676293 suppressed RANKLmediated tumour migration in the transwell assay and inhibited bone metastasis of the murine cell line B16F10,which is known not to trigger osteoclast activation.Based on the results from this study,RANKL inhibition with a small-molecule compound constitutes a promising therapeutic strategy for treating bone metastasis by inhibiting both osteoclastic bone resorption and tumour migration to bone.Yuta Nakai Kazuo Okamoto Asuka Terashima Shogo Ehata Jun Nishida Takeshi Imamura Takashi Ono Hiroshi Takayanagi 2019Bone Research2019,7,1:8
13Helicobacter pylori eradication to prevent gastric cancer: underlying molecular and cellular mechanisms显示文摘众多的细胞、分子的事件在胃的癌症的开发被描述了。在这篇文章,我们 Helicobacter pylori (H pylori ) 的 overviewed 角色一些在胃的致癌作用的重要事件上的感染并且讨论了这些细胞、分子的事件是否在感染的痊愈以后是可逆的。有几个细菌的部件,影响胃的致癌作用的胃的上皮的动力学和提升。细菌也增加基因不稳定性和变化的风险由于没有并且另外的反应的氧种类。肿瘤的渐成说 silencing 压制或象 RUNX3 那样的基因可以与肠的组织变形改变那些的胃腺的显型变化的频率。象生长因素, cytokines 和 COX-2 的增加的表示那样的主机因素也在 H pylori 积极的题目在非癌的织物被报导了。大多数上述现象在感染的痊愈以后被颠倒,是引人注目的。然而,他们的一些包括在 COX-2 的表示上继续存在并且可以为致癌作用增加风险在甚至在成功的 H pylori 根除以后遇见了无形或发育异常的的粘膜。因此, H pylori 根除不能完全为胃的致癌作用废除风险。胃的癌症取决于预定和目标人口的在压制的感染的痊愈的效率,和保证推进调查。Shingo Tsuji Masahiko Tsujii Hiroaki Murata Tsutomu Nishida Masato Komori Masakazu Yasumaru Shuji Ishii Yoshiaki Sasayama Sunao Kawano Norio Hayashi 2006World Journal of Gastroenterology2006,12,11:7
14Choroidal and cutaneous metastasis from gastric adenocarcinoma显示文摘Choroidal or cutaneous metastasis of gastric cancer is rare. Gastrointestinal cancer was found in only 4% in patients with uveal metastasis. Choroidal metastasis from gastric cancer was reported in two cases in earlier literature. The frequency of gastric cancer as a primary lesion was 6% in cutaneous metastasis of men, and cutaneous metastasis occurs in 0.8% of all gastric cancers. We report a patient with gastric adenocarcinoma who presented with visual disorder in his left eye and skin pain on his head as his initial symptoms. These symptoms were diagnosed to be caused by choroidal and cutaneous metastasis of gastric adenocarcinoma. Two cycles of chemotherapy consisted of oral S-1 and intravenous cisplatin (SPIRITS regimen); this was markedly effective to reduce the primary gastric lesion and almost all the metastatic lesions.Shoichiro Kawai Tsutomu Nishida Yoshito Hayashi Hisao Ezaki Takuya Yamada Shinichiro Shinzaki Masanori Miyazaki Kei Nakai Takayuki Yakushijin Kenji Watabe Hideki Iijima Masahiko Tsujii Kohji Nishida Tetsuo Takehara 2013World Journal of Gastroenterology2013,19,9:6
15Can control of gut microbiota be a future therapeutic option for inflammatory bowel disease?显示文摘Inflammatory bowel disease(IBD)is a chronic inflammatory condition of the gastrointestinal tract encompassing two main clinical entities,Crohn’s disease and ulcerative colitis.Accumulated evidence indicates that an aberrant immune activation caused by the interplay of genetic susceptibility and environmental impact on the gut microbiota may be involved in the pathogenesis of IBD.Rapid advances in next-generation sequencing technology have enabled a number of studies to identify the alteration of the gut microbiota,termed dysbiosis,in IBD.Moreover,the alteration in the metabolites derived from the gut microbiota in IBD has also been described in many studies.Therefore,microbiota-based interventions such as fecal microbiota transplantation(FMT)have attracted attention as a novel therapeutic option in IBD.However,in clinical trials,the efficacy of FMT for IBD remains controversial.Additional basic and clinical studies are required to validate whether FMT can assume a complementary role in the treatment of IBD.The present review provides a synopsis on dysbiosis in IBD and on the association between the gut microbiota and the pathogenesis of IBD.In addition,we summarize the use of probiotics in IBD and the results of current clinical trials of FMT for IBD.Atsushi Nishida Kyohei Nishino Keitaro Sakai Yuji Owaki Yoshika Noda Hirotsugu Imaeda 2021World Journal of Gastroenterology2021,27,23:6
16Trisomy 3 may predict a poor response of gastric MALT lymphoma to Helicobacter pylori eradication therapy显示文摘AIM: To investigate the relation of the response to Helicobacter pylori eradication therapy to the depth of tumor invasion and chromosome abnormalities in patients with mucosaassociated lymphoid tissue (MALT) lymphoma and to determine the clinical value of aneuploidy.METHODS: We studied 13 patients with localized gastric MALT lymphoma of stage E1. Before eradication therapy,the depth of tumor invasion was assessed by endoscopic ultrasonography in 8 patients and by endoscopic examination and gastrointestinal series in the remaining patients. To detect chromosomal abnormalities, paraffin-embedded tissue sections of diagnostic biopsy specimens underwent tissuefluorescence in situ hybridization (FISH), using chromosomespecific α-satellite DNA probes for chromosomes 3,7,12,and 18 and YAC clones for t(11;18)(q21;q21).RESULTS: Seven of the 13 patients had complete regression(CR) in response to H pylori eradication therapy. No patient with CR had submucosal tumor invasion. Trisomy 18 was seen in 1 patient with CR, and both trisomies 12 and 18 were present in another patient with CR. All patients with no response or progressive disease had deep submucosal tumor invasion and showed t(11;18)(q21;q21) or trisomy 3. Trisomy 7 was not detected in this series of patients.CONCLUSION: The depth of tumor invasion is an accurate predictor of the response of stage E1 MALT lymphoma to H pylori eradication therapy and is closely associated with the presence of chromosomal abnormalities. Trisomy 3 may predict the aggressive development of MALT lymphoma.Sawako Taji Kenichi Nomura Yosuke Matsumoto Hideaki Sakabe Naohisa Yoshida Shoji Mitsufuji Kazuhiro Nishida Shigeo Horiike Shigeo Nakamura Masuji Morita Masafumi Taniwaki 2005World Journal of Gastroenterology2005,11,1:6
17Inferring the Tree of Life of the order Cypriniformes, the earth's most diverse clade of freshwater fishes: Implications of varied taxon and character sampling显示文摘The phylogenetic relationships of species are fundamental to any biological investigation, including all evolutionary studies. Accurate inferences of sister group relationships provide the researcher with an historical framework within which the attributes or geographic origin of species (or supraspecific groups) evolved. Taken out of this phylogenetic context, interpretations of evolutionary processes or origins, geographic distributions, or speciation rates and mechanisms, are subject to nothing less than a biological experiment without controls. Cypriniformes is the most diverse clade of freshwater fishes with estimates of diversity of nearly 3,500 species. These fishes display an amazing array of morphological, ecological, behavioral, and geographic diversity and offer a tremendous opportunity to enhance our understanding of the biotic and abiotic factors associated with diversification and adaptation to environments. Given the nearly global distribution of these fishes, they serve as an important model group for a plethora of biological investigations, including indicator species for future cli-matic changes. The occurrence of the zebrafish, Danio rerio, in this order makes this clade a critical component in understanding and predicting the relationship between mutagenesis and phenotypic expressions in vertebrates, including humans. With the tremendous diversity in Cypriniformes, our understanding of their phylogenetic relationships has not proceeded at an acceptable rate, despite a plethora of morphological and more recent mo-lecular studies. Most studies are pre-Hennigian in origin or include relatively small numbers of taxa. Given that analyses of small numbers of taxa for molecular characters can be compromised by peculiarities of long-branch attraction and nodal-density effect, it is critical that significant progress in our understanding of the relationships of these important fishes occurs with increasing sampling of species to mitigate these potential problems. The recent Cypriniformes Tree of Life initiative is an effort to achieve this goal with morphological and molecular (mitochondrial and nuclear) data. In this early synthesis of our understanding of the phylogenetic relationships of these fishes, all types of data have contributed historically to improving our understanding, but not all analyses are complementary in taxon sampling, thus precluding direct understanding of the impact of taxon sampling on achieving accurate phylogenetic inferences. However, recent molecular studies do provide some insight and in some instances taxon sampling can be implicated as a variable that can influence sister group relationships. Other instances may also exist but without inclusion of more taxa for both mitochondrial and nuclear genes, one cannot distinguish between inferences being dictated by taxon sampling or the origins of the molecular data.Richard L. MAYDEN Kevin L. TANG Robert M. WOOD Wei-Jen CHEN Mary K. AGNEW Kevin W. CONWAY Lei YANG Andrew M. SIMONS Henry L. BART Phillip M. HARRIS Junbing LI Xuzhen WANG Kenji SAITOH Shunping HE Huanzhang LIU Yiyu CHEN Mutstmi NISHIDA Masaki MIYA 2008植物分类学报2008,46,3:5
18远端器官缺血性预处理对心血管功能的影响显示文摘目的 :观察远端器官缺血性预处理 (RPC)对非缺血心脏功能的影响 ,初步探讨 RPC的作用机制。方法 :19只成年绵羊麻醉后随机分为对照组 (n=9)及 RPC组 (n=10 )。测定基础状态 (BS1 )各参数后 ,RPC组动物经历 3次左侧股动脉阻断 5 min及再灌注 5 m in,第三次再灌注后 10 min测 RPC后 (BS2 )各参数。对照组动物不阻断股动脉 ,但于相应时间测定 BS1 及 BS2 各参数。结果 :对照组 BS1 及 BS2 各参数无显著变化。 RPC显著降低平均动脉压(MAP)、外周血管阻力 (SVR)及冠脉循环阻力 (CVR) (P<0 .0 5 ) ;轻度增加心排出量及冠脉血流量 (P>0 .0 5 )。但RPC对心率、左房压、每搏输出量、射血分数及每搏作功无显著影响。 BS2 时 RPC组左室收缩末期压 (L VESP)、左室压力上升及下降最大速率 (± dp/ dtmax)、动脉有效弹回性 (Effective arterial elastance,Ea)均显著低于对照组 (P<0 .0 5 ) ,而心脏收缩及舒张期左室容积下降及增加最大速率 (± dv/ dtmax)无显著变化。结论 :远端器官缺血性预处理降低动脉有效弹性及循环阻力、减弱心脏收缩性的同时 ,并不减弱反而轻度增强心脏泵血功能 ,提高了心肌收缩效率。夏正远 Takahiro NISHIDA Willem FLAMENG 2001心脏杂志2001,13,5:5
19Impact of time from diagnosis to chemotherapy in advanced gastric cancer: A Propensity Score Matching Study to Balance Prognostic Factors显示文摘BACKGROUND It is unclear whether treatment delay affects the clinical outcomes of chemotherapy in advanced gastric cancer(A-GC).AIM To assess whether treatment delay affects the clinical outcomes of chemotherapy in A-GC.METHODS This single-center retrospective study examined consecutive patients with A-GC between April 2012 and July 2018. In total, 110 patients with stage Ⅳ A-GC who underwent chemotherapy were enrolled. We defined the wait time(WT) as the interval between diagnosis and chemotherapy initiation. We evaluated the influence of WT on overall survival(OS).RESULTS The mean OS was 303 d. The median WT was 17 d. We divided the patients into early and elective WT groups, with a 2-wk cutoff point. There were 46 and 64 patients in the early and elective WT groups, respectively. Compared with the elective WT group, the early WT group had significantly lower albumin(Alb)levels and higher neutrophil/lymphocyte ratios and C-reactive protein(CRP)levels but not a lower performance status. The elective WT group underwent more combination chemotherapy than did the early WT group. OS was different between the two groups(230 d vs 340 d, respectively). Multivariate analysis revealed that higher CRP levels, lower Alb levels and monotherapy were significantly related to a poor prognosis. To minimize potential selection bias,patients in the elective WT group were 1:1 propensity score matched with patients in the early WT group; no significant difference in OS was found(303 d vs 311 d, respectively, log-rank P = 0.9832).CONCLUSION A longer WT in patients with A-GC does not appear to be associated with a worse prognosis.Tsutomu Nishida Aya Sugimoto Ryo Tomita Yu Higaki Naoto Osugi Kei Takahashi Kaori Mukai Tokuhiro Matsubara Dai Nakamatsu Shiro Hayashi Masashi Yamamoto Sachiko Nakajima Koji Fukui Masami Inada 2019World Journal of Gastrointestinal Oncology2019,11,1:4
20Factors associated with the overall survival of elderly patients with hepatocellular carcinoma显示文摘AIM:To identify the factors associated with overall survival of elderly patients with hepatocellular carcinoma(HCC).METHODS:A total of 286 patients with HCC(male/female:178/108,age:46-100 years),who were diagnosed and treated by appropriate therapeutic procedures between January 2000 and December 2010,were enrolled in this study.Patients were stratified into two groups on the basis of age:Elderly(≥ 75 years old) and non-elderly(< 75 years old).Baseline clinical characteristics as well as cumulative survival rates were then compared between the two groups.Univariate and multivariate analyses were used to identify the factors associated with prolonged overall survival of patients in each group.Cumulative survival rates in the two groups were calculated separately for each modified Japan Integrated Stage score(mJIS score) category by the Kaplan-Meier method.In addition,we compared the cumulative survival rates of elderly and non-elderly patients with good hepatic reserve capacity(≤ 2 points as per mJIS).RESULTS:In the elderly group,the proportion of female patients,patients with absence of hepatitis B or hepatitis C viral infection,and patients with coexisting extrahepatic comorbid illness was higher(56.8% vs 31.1%,P < 0.001;27.0% vs 16.0%,P = 0.038;33.8% vs 22.2%,P = 0.047;respectively) than that in the nonelderly group.In the non-elderly group,the proportion of hepatitis B virus(HBV)-infected patients was higher than that in the elderly group(9.4% vs 0%,P = 0.006).The cumulative survival rates in the elderly group were 53.7% at 3 years and 32.9% at 5 years,which were equivalent to those in the non-elderly group(55.9% and 39.4%,respectively),as shown by a log-rank test(P = 0.601).In multivariate analysis,prolonged survival was significantly associated with the extent of liver damage and stage(P < 0.001 and P < 0.001,respectively),but was not associated with patient age.However,on individual evaluation of factors in both groups,stage was significantly(P < 0.001) associated with prolonged survival.Regarding mJIS scores of ≤ 2,the rate of female patients with this score was higher in the elderly group when compared to that in the non-elderly group(P = 0.012) and patients ≥ 80 years of age tended to demonstrate shortened survival.CONCLUSION:Survival of elderly HCC patients was associated with liver damage and stage,but not age,except for patients ≥ 80 years with mJIS score ≤ 2.Hideki Fujii Yoshito Itoh Naoki Ohnishi Masafumi Sakamoto Tohru Ohkawara Yoshihiko Sawa Koichi Nishida Yasuo Ohkawara Kanji Yamaguchi Masahito Minami Takeshi Okanoue 2012World Journal of Gastroenterology2012,18,16:4
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