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1Female hepatology:Favorable role of estrogen in chronic liver disease with hepatitis B virus infection显示文摘Chronic hepatitis B virus (HBV) infection is the most common cause of hepatic fibrosis and hepatocellular carcinoma (HCC),mainly as a result of chronic necroinflammatory liver disease. A characteristic feature of chronic hepatitis B infection,alcoholic liver disease and nonalcoholic fatty liver disease (NAFLD) is hepatic steatosis. Hepatic steatosis leads to an increase in lipid peroxidation in hepatocytes,which,in turn,activates hepatic stellate cells (HSCs). HSCs are the primary target cells for inflammatory and oxidative stimuli,and these cells produce extracellular matrix components. Chronic hepatitis B appears to progress more rapidly in males than in females,and NAFLD,cirrhosis and HCC are predominately diseases that tend to occur in men and postmenopausal women. Premenopausal women have lower hepatic iron stores and a decreased production of proinflammatory cytokines. Hepatic steatosis has been observed in aromatase-deficient mice,and has been shown to decrease in animals after estradiol treatment. Estradiol is a potent endogenous antioxidant which suppresses hepatic fibrosis in animal models,and attenuates induction of redox sensitive transcription factors,hepatocyte apoptosis and HSC activation by inhibiting a generation of reactive oxygen species in primary cultures. Variant estrogen receptors are expressed to a greater extent in male patients with chronic liver disease than in females. These lines of evidence suggest that the greater progression of hepatic fibrosis and HCC in men and postmenopausal women may be due,at least in part,to lower production of estradiol and a reduced response to the action of estradiol. A better understanding of the basic mechanisms underlying the sex-associated differences in hepatic fibrogenesis and carciogenesis may open up new avenues for the prevention and treatment of chronic liver disease.Ichiro Shimizu Nao Kohno Katsuyoshi Tamaki Masayuki Shono Hui-Wei Huang Jiang-Hong He Deng-Fu Yao 2007World Journal of Gastroenterology2007,13,32:49
2GL3.3, a Novel QTL Encoding a GSK3/SHAGGY- like Kinase, Epistatically Interacts with GS3 to Produce Extra-long Grains in Rice显示文摘Duo Xia Nao Zhou Rongjia Liu Wenhan Dan Pingbo Li Bian Wu Junxiao Chen Lingqiang Wang Guanjun Gao Qinglu Zhang Yuqing He 2018Molecular Plant2018,11,5:41
3Portal vein thrombosis in liver cirrhosis显示文摘Portal vein thrombosis(PVT) is considered to be a frequent complication of liver cirrhosis. However, unlike PVT in patients without cirrhosis, very few data are available on the natural history and management of PVT in cirrhosis, despite its association with potentially life-threatening conditions, such as gastroesophageal bleeding and acute intestinal ischemia. Moreover, no consensus regarding PVT in cirrhosis exists. Suggested causes of PVT in cirrhosis include reduced portal blood flow velocity, multiple congenital or acquired thrombophilic factors, inherited or acquired conditions, and derangement of liver architecture. However, the understanding of PVT in cirrhosis is incomplete. In addition, information on the management of PVT in cirrhosis is inadequate. The aims of this review are to:(1) assemble data on the physiopathological mechanism, clinical findings, diagnosis and management of PVT in cirrhosis;(2) describe the principal factors most frequently involved in PVT development; and(3) summarize the recent knowledge concerning diagnostic and therapeutic procedures.Nao Kinjo Hirofumi Kawanaka Tomohiko Akahoshi Yoshi-hiro Matsumoto Masahiro Kamori Yoshihiro Nagao Naotaka Hashimoto Hideo Uehara Morimasa Tomikawa Ken Shirabe Yoshihiko Maehara 2014World Journal of Hepatology2014,6,2:38
4Useful detection of CD147 (EMMPRIN) for pathological diagnosis of early hepatocellular carcinoma in needle biopsy samples显示文摘AIM:To make clear whether CD147 (EMMPRIN) expression in pathological tumor samples with a fine-needle aspiration biopsy is useful for pathological diagnosis of early hepatocellular carcinoma (HCC). METHODS:Twenty-two patients (15 men and 7 women; median age 68 years,range 56-81 years) underwent a liver tissue biopsy in order to make a diagnosis of HCC. Paraffin-embedded liver biopsy tissue samples from 22 patients were stained with anti-CD147 antibody,murine monoclonal antibody 12C3 (MAb12C3) for immunohistochemical analysis. An immunohistochemical analysis of CD147 was performed and the degree of staining compared between tumor and non-tumor tissue. In addition,the degree of staining within tumor tissue was compared according to a number of clinicopathological variables. RESULTS:The degree of staining of CD147 was significantly higher in tumor tissues than non-tumor tissues,even in tumors less than 15 mm in diameter.The expression of this protein was significantly elevated in HCC tissue specimens from patients with a low value of serum AST and γ-GTP.Satoshi Mamori Keisuke Nagatsuma Tomokazu Matsuura Kiyoshi Ohkawa Hiroshi Hano Masaharu Fukunaga Masato Matsushima Yoshifumi Masui Nao Fushiya Hiroshi Onoda Yasuyuki Searashi Ichiro Takagi Hisao Tajiri 2007World Journal of Gastroenterology2007,13,21:20
5Retroperitoneal fibrosis associated with immunoglobulin G4-related disease显示文摘Retroperitoneal fibrosis is a rare disease characterized by the development of inflammation and fibrosis in the soft tissues of the retroperitoneum and other abdominal organs.Retroperitoneal fibrosis can be of 2 types:idiopathic and secondary.The recently advocated concept and diagnostic criteria of immunoglobulin G4(IgG4)-related disease,derived from research on autoimmune pancreatitis(AIP),has led to widespread recognition of retroperitoneal fibrosis as a condition caused by IgG4-related disease.We now know that previously diagnosed idiopathic retroperitoneal fibrosis includes IgG4-related disease;however,the actual prevalence is unclear.Conversely,some reports on AIP suggest that retroperitoneal fibrosis is concurrently found in about 10% of IgG4-related disease.Because retroperitoneal fibrosis has no specific symptoms,diagnosis is primarily based on diagnostic imaging(computed tomography and magnetic resonance imaging),which is also useful in evaluating the effect of therapy.Idiopathic retroperitoneal fibrosis can occur at different times with other lesions of IgG4-related disease including AIP.Thus,the IgG4 assay is recommended to diagnose idiopathic retroperitoneal fibrosis.High serum IgG4 levels should be treated and monitored as a symptom of IgG4-related disease.The first line of treatment for retroperitoneal fibrosis is steroid therapy regardless of its cause.For patients with concurrent AIP,i.e.,IgG4-related retroperitoneal fibrosis,the starting dose of steroid is usually 30-40 mg/d.The response to steroid therapy is generally favorable.In most cases,the pancreatic lesion and retroperitoneal fibrosis improve after the initial treatment.However,the epidemiology,treatment for recurring retroperitoneal fibrosis,and long-term prognosis are still largely unknown.Further analysis of such cases and research are necessary.Nao Fujimori Tetsuhide Ito Hisato Igarashi Takamasa Oono Taichi Nakamura Yusuke Niina Masayuki Hijioka Lingaku Lee Masahiko Uchida Ryoichi Takayanagi 2013World Journal of Gastroenterology2013,19,1:14
6Staging systems for hepatocellular carcinoma: Current status and future perspectives显示文摘Hepatocellular carcinoma(HCC) is a major health concern worldwide and the third cause of cancer-related death. Despite advances in treatment as well as careful surveillance programs, the mortality rates in most countries are very high. In contrast to other cancers, the prognosis and treatment of HCC depend on the tumor burden in addition to patient's underlying liver disease and liver functional reserve. Moreover, thereis considerable geographic and institutional variation in both risk factors attributable to the underlying liver diseases and the management of HCC. Therefore, although many staging and/or scoring systems have been proposed, there is currently no globally accepted system for HCC due to the extreme heterogeneity of the disease. The aim of this review is to focus on currently available staging systems as well as those newly reported in the literatures since 2012. Moreover, we describe problems with currently available staging systems and attempts to modify and/or add variables to existing staging systems.Akiyoshi Kinoshita Hiroshi Onoda Nao Fushiya Kazuhiko Koike Hirokazu Nishino Hisao Tajiri 2015World Journal of Hepatology2015,7,3:10
7Visible-light-driven enhanced antibacterial and biofilm elimination activity of graphitic carbon nitride by embedded Ag nanoparticles显示文摘有 photocatalytic 活动的半导体 nanomaterials 为许多应用有潜力。支持 photocatalytic 活动的一个有效方法在一个半导体上正在扔高贵金属 nanoparticles (NP ) ,自从 NP 作为禁止 photoexcited 电子洞对的快再结合并且从而提高反应的氧种类(ROS ) 的产生的优秀电子领受人扮演的高贵金属。此处,一个高度有效的平台, graphitic 碳氮化物( g-C <潜水艇class=“ a-plus-plus ”> 3 N <潜水艇class=“ a-plus-plus ”>有嵌入的 Ag nanoparticles 的 4 ) nanosheets ( Ag/g-C <潜水艇class=“ a-plus-plus ”> 3 N <潜水艇class=“ a-plus-plus ”> 4 ),被综合由一灵巧的线路。在可见轻照耀下面, Ag/g-C 的 ROS 生产<潜水艇class=“ a-plus-plus ”> 3 N <潜水艇class=“ a-plus-plus ”> 4 nanohybrids 极大地与太古的 g-C 相比被改进<潜水艇class=“ a-plus-plus ”> 3 N <潜水艇class=“ a-plus-plus ”> 4 nanosheets ,并且而且, nanohybrids 显示出驱散细菌的 biofilms 的提高的抗菌剂功效和能力。我们第一次证明 Ag/g-C < 潜水艇 class= “ a-plus-plus ” > 3 N < 潜水艇 class= “ a-plus-plus ” > 4 nanohybrids 是在可见的光下面的有效杀菌代理人照耀,和罐头也为 biofilm 提供一个新方法消除。Ag/g-C 的提高的抗菌剂性质和破坏 biofilm 能力 < 潜水艇 class= “ a-plus-plus ” > 3 N < 潜水艇 class= “ a-plus-plus ” > 4 nanohybrids 可以为许多提供生物医学的应用。Wei Bing Zhaowei Chen Hanjun Sun Peng Shi Nao Gao Jinsong Ren Xiaogang Qu 2015Nano Research2015,8,5:7
8Endoscopic approach through the minor papilla for the management of pancreatic diseases显示文摘AIM:To clarify the efficacy and safety of an endoscopic approach through the minor papilla for the management of pancreatic diseases.METHODS:This study included 44 endoscopic retrograde cholangiopancreatography(ERCP) procedures performed in 34 patients using a minor papilla approach between April 2007 and March 2012.We retrospectively evaluated the clinical profiles of the patients,the endoscopic interventions,short-term outcomes,and complications.RESULTS:Of 44 ERCPs,26 were diagnostic ERCP,and 18 were therapeutic ERCP.The most common cause of difficult access to the main pancreatic duct through the major papilla was pancreas divisum followed by distortion of Wirsung's duct.The overall success rate of minor papilla cannulation was 80%(35/44),which was significantly improved by wire-guided cannulation(P = 0.04).Endoscopic minor papillotomy(EMP) was performed in 17 of 34 patients(50%) using a needle-knife(13/17) or a pull-type papillotome(4/17).EMP with pancreatic stent placement,which was the main therapeutic option for patients with chronic pancreatitis,recurrent acute pancreatitis,and pancreatic pseudocyst,resulted in short-term clinical improvement in 83% of patients.Mild post-ERCP pancreatitis occurred as an early complication in 2 cases(4.5%).CONCLUSION:The endoscopic minor papilla approach is technically feasible,safe,and effective when the procedure is performed in a high-volume referral center by experienced endoscopists.Nao Fujimori Hisato Igarashi Akira Asou Ken Kawabe Lingaku Lee Takamasa Oono Taichi Nakamura Yusuke Niina Masayuki Hijioka Masahiko Uchida Kazuhiro Kotoh Kazuhiko Nakamura Tetsuhide Ito Ryoichi Takayanagi 2013World Journal of Gastrointestinal Endoscopy2013,5,3:6
9Effects of estradiol and progesterone on the proinflammatory cytokine production by mononuclear cells from patients with chronic hepatitis C显示文摘AIM:To investigate the effects of estradiol (E2) and progesterone on the unstimulated and oxidative stressstimulated production of tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-8, and macrophage chemotactic protein (MCP)-1 by peripheral blood mononuclear cells (PBMCs) from patients with chronic hepatitis C and healthy controls. METHODS:The PBMCs were separated from agematched 72 males and 71 females with and without chronic hepatitis C, who were divided into two groups based on a mean menopausal age of 50 years. Oxidative stress was induced by hydrogen peroxide in the cells incubated in serum-free media. Cytokines in the culture supernatant were measured by an enzyme-linked immunosorbent assay. RESULTS:The highest levels of the spontaneous production of TNF-α, IL-1β, IL-8, and MCP-1 by the unstimulated PBMCs were in the older male patients with chronic hepatitis C and the lowest levels were in the premenopausal female healthy controls. E2 inhibited the cytokine production by the unstimulated PBMCs from the older male and post-menopausal female patients, which was further stimulated by progesterone. The exposure to hydrogen peroxide in the PBMCs from the younger male and pre-menopausal female healthy subjects induced the production of cytokines. The change rates of the hydrogen peroxide-stimulated cytokine production were suppressed by E2 and enhanced by progesterone. CONCLUSION:These findings suggest that E2 may play a favorable role in the course of persistent liver injury by preventing the accumulation of monocytes-macrophages and by inhibiting proinflammatory cytokine production, whereas progesterone may counteract the favorable E2 effects.Ying Yuan Ichiro Shimizu Mi Shen Eriko Aoyagi Hidetaka Takenaka Tatuzo Itagaki Mari Urata Katsutaka Sannomiya Nao Kohno Katsuyoshi Tamaki Masayuki Shono Tetsuji Takayama 2008World Journal of Gastroenterology2008,14,14:5
10Liver injury after aluminum potassium sulfate and tannic acid treatment of hemorrhoids显示文摘We are reporting a rare case of acute liver injury that developed after an internal hemorrhoid treatment with the aluminum potassium sulfate and tannic acid(ALTA) regimen. A 41-year-old man developed a fever and liver injury after undergoing internal hemorrhoid treatment with a submucosal injection of ALTA with lidocaine. The acute liver injury was classified clinically as hepatocellular and pathologically as cholestastic. We could not classify the mechanism of injury. High eosinophil and immunoglobulin E levels characterized the injury,and a drug lymphocyte stimulation test was negative on postoperative day 25. Fluid replacement for two weeks after hospitalization improved the liver injury. ALTA therapy involves injecting chemicals into the submucosa,from the rectum to the anus,and this is the first description of a case that developed a severe liver disorder after this treatment; hence,an analysis of future cases as they accumulate is desirable.Kenichi Yoshikawa Reimi Kawashima Yuki Hirose Keiko Shibata Takafumi Akasu Noriko Hagiwara Takeharu Yokota Nami Imai Akira Iwaku Go Kobayashi Hirohiko Kobayashi Akiyoshi Kinoshita Nao Fushiya Hiroyuki Kijima Kazuhiko Koike Masayuki Saruta 2017World Journal of Gastroenterology2017,23,27:5
11En bloc pancreaticoduodenectomy and right hemicolectomy for locally advanced right-sided colon cancer显示文摘AIM To assess the usefulness of en bloc right hemicolectomy with pancreaticoduodenectomy(RHCPD) for locally advanced right-sided colon cancer(LARCC).METHODS We retrospectively reviewed the database of Saitama Medical Center, Jichi Medical University, between January 2009 and December 2016. During this time, 299 patients underwent radical right hemicolectomy for right-sided colon cancer. Among them, 5 underwent RHCPD for LARCC with tumor infiltration to adjacent organs. Preoperative computed tomography(CT) was routinely performed to evaluate local tumor infiltration into adjacent organs. During the operation, we evaluated the resectability and the amount of infiltration into the adjacent organs without dissecting the adherent organs from the cancer. When we confirmed that radical resection was feasible and could lead to R0 resection, we performed RHCPD. The clinical data were carefully reviewed, and the demographic variables, intraoperative data, and postoperative parameters were recorded.RESULTS The median age of the 5 patients who underwent RHCPD for LARCC was 70 years. The tumors were located in the ascending colon(three patients) and transverse colon(two patients). Preoperative CT revealed infiltration of the tumor into the duodenum in all patients, the pancreas in four patients, the superior mesenteric vein(SMV) in two patients, and tumor thrombosis in the SMV in one patient. We performed RHCPD plus SMV resection in three patients. Major postoperative complications occurred in 3 patients(60%) as pancreatic fistula(grade B and grade C, according to International Study Group on Pancreatic Fistula Definition) and delayed gastric empty. None of the patients died during their hospital stay. A histological examination confirmed malignant infiltration into the duodenum and/or pancreas in 4 patients(80%), and no patients showed any malignant infiltration into the SMV. Two patients were histologically confirmed to have tumor thrombosis in the SMV. All of the tumors had clear resection margins(R0). The median follow-up time was 77 mo. During this period, two patients with tumor thrombosis died from liver metastasis. The overall survival rates were 80% at 1 year and 60% at 5 years. All patients with node-negative status(n = 2) survived for more than seven years.CONCLUSION This study showed that the long-term survival is possible for patients with LARCC if RHCPD is performed successfully, particularly in those with node-negative status.Yuji Kaneda Hiroshi Noda Yuhei Endo Nao Kakizawa Kosuke Ichida Fumiaki Watanabe Takaharu Kato Yasuyuki Miyakura Koichi Suzuki Toshiki Rikiyama 2017World Journal of Gastrointestinal Oncology2017,9,9:4
12Low-frequency Stimulation at the Subiculum is Anti-convulsant and Anti-drug-resistant in a Mouse Model of Lamotrigine-resistant Temporal Lobe Epilepsy显示文摘Dear Editor,Epilepsy is a common neurological disease.About 30%of epileptic patients develop resistance to antiepileptic drugs(AEDs),and are considered to have refractory or drugresistant epilepsy[1].Based on the time course over which drug-resistance develops,refractory epilepsy can be further divided into an early-onset type(drug-resistance more likely innate and correlated with gene mutations)and a delayed-onset type(drug-resistance emerges after a period of medication)[2].Yeping Ruan Cenglin Xu Jile Lan Jiazhen Nao Shuo Zhang Fei Fan Yi Wang Zhong Chen 2020Neuroscience Bulletin2020,36,6:4
13FEM analysis for hot rolling process of AM60 alloy显示文摘<正>The rolling of AM60 sheets for 50%reduction was analyzed with DEFORM to investigate the hot deformation process. The simulated results show that the sheet velocities at the entrance(21 mm/s) and at the exit(37 mm/s) are less and larger than roll velocity,respectively.From the entrance to the neutral point,the velocity at the sheet surface is greater than that at the middle point of sheet in thickness,while that from the neutral point to the exit shows the opposite pattern.The effective strain of the sheet increases from the entrance to the exit due to the continuous reduction in thickness.In addition,the effective strain at the sheet surface reaches to 1.0 and is larger than that of 0.8 at the middle point of sheet.The difference of effective strain in thickness direction has a much stronger effect on the recrystallized fraction than on the recrystallized grain size.The minimum temperature of 347℃is obtained at the surface contacting directly with roll and the maximum temperature 388℃at the middle point of sheet in thickness.丁汉材 KANAMORI Nao HONMA Tomoyuki KAMADO Shigeharu KOJIMA Yo 2008中国有色金属学会会刊:英文版2008,18,A01:4
14Hepcidin/ferroportin expression levels involve efficacy of pegylated-interferon plus ribavirin in hepatitis C virusinfected liver显示文摘AIM:To investigate the relationship between the ironmetabolism-related gene expression profiles and efficacy of antiviral therapy in chronic hepatitis C patients.METHODS:The hepatic expression profile of ironmetabolism-related genes was analyzed and its association with virological response to pegylated-interferon plus ribavirin combination therapy was evaluated.A hundred patients with chronic hepatitis C(genotype1b,n = 50; genotype 2,n = 50) were enrolled and retrospectively analyzed.Liver biopsy samples were subjected to quantitative polymerase chain reaction for iron-metabolismrelated genes and protein expression(Western blotting analysis) for ferroportin.As a control,normal liver tissue was obtained from 18 living donors of liver transplantation.Serum hepcidin level was measured by sensitive liquid chromatography/electrospray ionization tandem mass spectrometry.RESULTS:Iron overload is associated with liver damage by increasing oxidative stress and hepatitis C virus(HCV)is reported to induce iron accumulation in hepatocytes in vivo.Conversely,iron administration suppresses HCV replication in vitro.Therefore,the association between HCV infection and iron metabolism remains unclear.Compared with controls,patients had significantly higher gene expression for transferrin,iron-regulatoryproteins 1 and 2,divalent metal transporter 1,and ferroportin,but similar for transferrin receptors 1 and2,and hepcidin.When the expression profiles were compared between sustained virological response(SVR)and non-SVR patients,the former showed significantly lower transcription and protein expression of hepcidin and ferroportin.Expression of hepcidin-regulating genes,BMPR1,BMPR2,and hemojuvelin,was significantly increased,whereas BMP2 was decreased in HCV-infected liver.BMPR2 and hemojuvelin expression was significantly lower in the SVR than non-SVR group.HCV infection affects the expression of iron-metabolism-related genes,leading to iron accumulation in hepatocytes.CONCLUSION:Decreased expression of hepcidin and ferroportin in SVR patients indicates the importance of hepatocytic iron retention for viral response during pegylated-interferon plus ribavirin treatment.Motoyuki Kohjima Tsuyoshi Yoshimoto Munechika Enjoji Nobuyoshi Fukushima Kunitaka Fukuizumi Tsukasa Nakamura Miho Kurokawa Nao Fujimori Yusuke Sasaki Yasushi Shimonaka Yusuke Murata Susumu Koyama Ken Kawabe Kazuhiro Haraguchi Yorinobu Sumida Naohiko Harada Masaki Kato Kazuhiro Kotoh Makoto Nakamuta 2015World Journal of Gastroenterology2015,21,11:4
15An unusual enteropathy-associated T-cell lymphoma with MYC translocation arising in a Japanese patient:A case report显示文摘Enteropathy-associated T-cell lymphoma(EATL) is a rare peripheral T-cell lymphoma classified into 2 types,with or without celiac disease,based on histology.Type 2 EATL is less commonly associated with celiac disease,in which cells are characterized by being monomorphic and small-to medium-sized.Cells are characterized by CD8 and CD56 expression and c-MYC oncogene locus gain.We present an atypical case of type 2 EATL in the jejunum,with human T-lymphotropic virus-1 that was CD4-CD8+ CD56-CD30-CD25-TIA-1+ and granzyme B+ on immunohistological staining.It also displayed translocation of chromosome 8p24(c-MYC),as determined by fluorescent in situ hybridization.Mucosal spreading and intraepithelial invasion by lymphoma with villous atrophy were detected adjacent to the mucosal layer.The lymphoma may be derived from intraepithelial CD8+ T cells,similar to celiac disease.Kenji Okumura Masahiko Ikebe Tatsuro Shimokama Morishige Takeshita Nao Kinjo Keishi Sugimachi Hidefumi Higashi 2012World Journal of Gastroenterology2012,18,19:3
16Endoscopic submucosal dissection in a patient with esophageal adenoid cystic carcinoma显示文摘We report the first use of endoscopic submucosal dissection(ESD) for the treatment of a patient with adenoid cystic carcinoma of the esophagus(EACC). An 82-year-old woman visited our hospital for evaluation of an esophageal submucosal tumor. Endoscopic examination showed a submucosal tumor in the middle third of the esophagus. The lesion partially stained with Lugol's solution,and narrow band imaging with magnification showed intrapapillary capillary loops with mild dilatation and a divergence of caliber in the center of the lesion. Endoscopic ultrasound imaging revealed a solid 8 mm × 4.2 mm tumor,primarily involving the second and third layers of the esophagus. A preoperative biopsy was non-diagnostic. ESD was performed to resect the lesion,an 8 mm submucosal tumor. Immunohistologically,tumor cells differentiating into ductal epithelium and myoepithelium were observed,and the tissue type was adenoid cystic carcinoma. There was no evidence of esophageal wall,vertical stump or horizontal margin invasion with p T1 b-SM2 staining(1800 μm from the muscularis mucosa). Further studies are needed to assess the use of ESD for the treatment of patients with EACC.Kenichi Yoshikawa Akiyoshi Kinoshita Yuki Hirose Keiko Shibata Takafumi Akasu Noriko Hagiwara Takeharu Yokota Nami Imai Akira Iwaku Go Kobayashi Hirohiko Kobayashi Nao Fushiya Hiroyuki Kijima Kazuhiko Koike Haruka Kaneyama Keiichi Ikeda Masayuki Saruta 2017World Journal of Gastroenterology2017,23,45:3
17Dynamic properties of a flexible metal-organic framework exhibiting a unique'picture frame'-like crystal morphology显示文摘The precise control of the crystal morphology of metal-organic frameworks(MOFs)enables optimization of its adsorptive properties,as well as enables better integration within functional devices.However,the influence of such modifications on the dynamic properties of flexible MOFs is poorly understood Here,we report the synthesis of a series of Cu_(2)(bdc)_(2)(bpy)(bdc^(2-)=1,4-benzenedicarboxylate;bpy=4,4,-bipyridine)crystals having an unusual picture frame-like morphology that results from a restriction in the quantity of bpy pillars added to the reaction mixture during the intercalation of the Cu_(2)(bdc)_(2)(MeOH)_(2)layers.The width of the frames is found to correlate with the quantity of bpy,and importantly,causes the dynamic properties of the resulting Cu_(2)(bdc)_(2)(bpy)material to vary between rigid,elastic,and shape memory modes.In all,the results demonstrate the potential for the properties of MOFs to be optimized via subtle manipulations in the crystal morphology rather than changes in the overall material composition.Kenji Sumida Nao Horike Shuhei Furukawa 2021Nano Research2021,14,2:3
18Proposed criteria to differentiate heterogeneous eosinophilic gastrointestinal disorders of the esophagus, including eosinophilic esophageal myositis显示文摘AIM To define clinical criteria to differentiate eosinophilic gastrointestinal disorder(Eo GD) in the esophagus. METHODS Our criteria were defined based on the analyses of the clinical presentation of eosinophilic esophagitis(Eo E), subepithelial eosinophilic esophagitis(s Eo E) and eosinophilic esophageal myositis(Eo EM), identified by endoscopy, manometry and serum immunoglobulin E levels(s-Ig E), in combination with histological and polymerase chain reaction analyses on esophageal tissue samples.RESULTS In five patients with Eo E, endoscopy revealed longitudinal furrows and white plaques in all, and fixed rings in two. In one patient with s Eo E and four with Eo EM, endoscopy showed luminal compression only. Using manometry, failed peristalsis was observed in patients with Eo E and s Eo E with some variation, while Eo EM was associated with hypercontractile or hypertensive peristalsis, with elevated s-Ig E. Histology revealed the following eosinophils per high-power field values. Eo E = 41.4 ± 7.9 in the epithelium and 2.3 ± 1.5 in the subepithelium; s Eo E = 3 in the epithelium and 35 in the subepithelium(conventional biopsy); Eo EM = none in the epithelium, 10.7 ± 11.7 in the subepithelium(conventional biopsy or endoscopic mucosal resection) and 46.8 ± 16.5 in the muscularis propria(peroral esophageal muscle biopsy). Presence of dilated epithelial intercellular space and downward papillae elongation were specific to Eo E. Eotaxin-3, IL-5 and IL-13 were overexpressed in Eo E.CONCLUSION Based on clinical and histological data, we identified criteria, which differentiated between Eo E, s Eo E and Eo EM, and reflected a different pathogenesis between these esophageal Eo GDs.Hiroki Sato Nao Nakajima Kazuya Takahashi Go Hasegawa Ken-ichi Mizuno Satoru Hashimoto Satoshi Ikarashi Kazunao Hayashi Yutaka Honda Junji Yokoyama Yuichi Sato Shuji Terai 2017World Journal of Gastroenterology2017,23,13:2
19Impact of Antithrombin III Concentrates on Portal Vein Thrombosis After Splenectomy in Patients With Liver Cirrhosis and Hypersplenism显示文摘Hirofumi Kawanaka Tomohiko Akahoshi Nao Kinjo Kozou Konishi Daisuke Yoshida Go Anegawa Shohei Yamaguchi Hideo Uehara Naotaka Hashimoto Norifumi Tsutsumi Morimasa Tomikawa Yoshihiko Maehara 2010Annals of Surgery2010,,1:2
20A patient with spinal metastasis from hepatocellular carcinoma discovered from neurological findings显示文摘Although spinal tumors are uncommon, they may reduce survival or cause serious functional disorders in the extremities. Metastatic spinal tumors from malignant tumors can induce symptoms of spinal cord compression, such as paraplegia, quadriplegia, and vesicorectal disturbance, which are aggravated with progression of the diseases and time. We report a patient with hepatocellular carcinoma (HCC) who was suspected of having spinal lesions based on neurological findings, and a metastatic spinal tumor was found by imaging examination. Assuming that metastasis had occurred at the time lumbar pain developed, the patient reached the level of gait disturbance within only 4 mo, showing a rapid advancement of symptoms. If early diagnosis had been possible, treatment could be performed before acute myelopathy progressed to complete paralysis. We speculate that the terminal stage of HCC is not only liver failure associated with intrahepatic lesions but also metastasis to other regions, treatment for individual pathologies therefore, will be needed, which constitutes an important issue.Katsuyoshi Tamaki Ichiro Shimizu Mari Urata Nao Kohno Hiroshi Fukuno Susumu Ito Nobuya Sano 2007World Journal of Gastroenterology2007,13,19:2
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