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| 1 | Nestin:A novel angiogenesis marker and possible target for tumor angiogenesis显示文摘Abnormal vasculature,termed tumor vessels,is a hallmark of solid tumors.The degree of angiogenesis is associated with tumor aggressiveness and clinical outcome.Therefore,exact quantification of tumor vessels is useful to evaluate prognosis.Furthermore,selective detection of newly formed tumor vessels within cancer tissues using specific markers raises the possibility of molecular targeted therapy via the inhibition of tumor angiogenesis.Nestin,an intermediate filament protein,is reportedly expressed in repair processes,various neoplasms,and proliferating vascular endothelial cells.Nestin expression is detected in endothelial cells of embryonic capillaries,capillaries of the corpus luteum,which replenishes itself by angiogenesis,and proliferating endothelial progenitor cells,but not in mature endothelial cells.Therefore,expression of nestin is relatively limited to proliferating vascular endothelial cells and endothelial progenitor cells.Nestin expression is also reported in blood vessels within glioblastoma,prostate cancer,colorectal cancer,and pancreatic cancer,and its expression is more specific for newly formed blood vessels than other endothelial cell markers.Nestin-positive blood vessels form smaller vessels with high proliferation activity in tumors.Knockdown of nestin in vascular endothelial cells suppresses endothelial cell growth and tumor formation ability of pancreatic cancers in vivo.Using nestin to more accurately evaluate microvessel density in cancer specimens may be a novel prognostic indicator.Furthermore,nestin-targeted therapy may suppress tumor proliferation via inhibition of angiogenesis in numerous malignancies,including pancreatic cancer.In this review article,we focus on nestin as a novel angiogenesis marker and possible therapeutic target via inhibition of tumor angiogenesis. | Yoko Matsuda Masahito Hagio Toshiyuki Ishiwata | 2013 | World Journal of Gastroenterology2013，19，1： | 16 |
| 2 | Decreased phagocytic activity of Kupffer cells in a rat nonalcoholic steatohepatitis model显示文摘AIM: To investigate Kupffer cell dynamics and phagocytic activity,using a rat nonalcoholic steatohepatitis (NASH) model. METHODS: Male F344 rats were fed either a control diet or a choline-deficient L-amino acid-defined (CDAA) diet,followed by contrast enhanced ultrasonography (CEUS) using Levovist. The uptake of latex beads by the Kupffer cells was determined by fluorescent microscopy. The status of the Kupffer cells was compared between the two groups,using the immunohistochemical staining technique. RESULTS: After 4 or more wk of the CDAA diet,CEUS examination revealed a decrease in the signal intensity,20 min after intravenous Levovist. Fluorescent microscopic examination showed that the uptake of latex beads by the Kupffer cells was reduced at week 1 and 2 in the study group,compared with the controls,with no further reduction after 3 wk. Immunohistochemical staining revealed no significant difference in the Kupffer cell counts between the control group and the CDAA group. CONCLUSION: CEUS examination using Levovist demonstrated reduced contrast effect and phagocytic activity in the liver parenchymal phase,although the Kupffer cell numbers were unchanged,indicating reduced phagocytic function of the Kupffer cells in the rat NASH model. We believe that CEUS examination using Levovist is a useful screening modality,which can detect NASH in fatty liver patients. | Tatsuhiro Tsujimoto Hideto Kawaratani Toshiyuki Kitazawa Toshiko Hirai Hajime Ohishi Mitsuteru Kitade Hitoshi Yoshiji Masahito Uemura Hiroshi Fukui | 2008 | World Journal of Gastroenterology2008，14，39： | 12 |
| 3 | Evaluation of magnifying colonoscopy in the diagnosis of serrated polyps显示文摘AIM:To elucidate the colonoscopic features of serrated lesions of the colorectum using magnifying colonoscopy.METHODS:Broad division of serrated lesions of the colorectum into hyperplastic polyps(HPs),traditional serrated adenomas(TSAs),and sessile serrated adenomas/polyps(SSA/Ps) has been proposed on the basis of recent molecular biological studies.However,few reports have examined the colonoscopic features of these divisions,including magnified colonoscopic findings.This study examined 118 lesions excised in our hospital as suspected serrated lesions after magnified observation between January 2008 and September 2011.Patient characteristics(sex,age),conventional colonoscopic findings(location,size,morphology,color,mucin) and magnified colonoscopic findings(pit pattern diagnosis) were interpreted by five colonoscopists with experience in over 1000 colonoscopies,and were compared with histopathological diagnoses.The pit patterns were categorized according to Kudo's classification,but a more detailed investigation was also performed using the subclassification [type Ⅱ-Open(type Ⅱ-O),type Ⅱ-Long(type Ⅱ-L),or type Ⅳ-Serrated(type Ⅳ-S)] proposed by Kimura T and Yamano H.RESULTS:Lesions comprised 23 HPs(23/118:19.5%),39 TSAs(39/118:33.1%:with cancer in one case),50 SSA/Ps(50/118:42.4%:complicated with cancer in three cases),and six others(6/118:5.1%).We excluded six others,including three regular adenomas,one hamartoma,one inflammatory polyp,and one juvenile polyp for further analysis.Conventional colonoscopy showed that SSA/Ps were characterized as larger in diameter than TSAs and HPs(SSA/P vs HP,13.62 ± 8.62 mm vs 7.74 ± 3.24 mm,P < 0.001;SSA/Ps vs TSA,13.62 ± 8.62 mm vs 9.89 ± 5.73 mm,P < 0.01);common in the right side of the colon [HPs,30.4%(7/23):TSAs,20.5%(8/39):SSA/P,84.0%(42/50),P < 0.001];flat-elevated lesion [HPs,30.4%(7/23):TSAs,5.1%(2/39):SSA/Ps,90.0%(45/50),P < 0.001];normal-colored or pale imucosa [HPs,34.8%(8/23):TSAs,10.3%(4/39):SSA/Ps,80%(40/50),P < 0.001];and with large amounts of mucin [HPs,21.7%(5/23):TSAs,17.9%(7/39):SSA/Ps,72.0%(36/50),P < 0.001].In magnified colonoscopic findings,17 lesions showed either type Ⅱ pit pattern alone or partial type Ⅱ pit pattern as the basic architecture,with 14 HPs(14/17,70.0%) and 3 SSA/Ps.Magnified colonoscopy showed the type Ⅱ-O pit pattern as characteristic of SSA/Ps [sensitivity 83.7%(41/49),specificity 85.7%(54/63)].Cancer was also present in three lesions,in all of which a type Ⅵ pit pattern was also present within the same lesion.There were four HPs and four TSAs each.The type Ⅳ-S pit pattern was characteristic of TSAs [sensitivity 96.7%(30/31),specificity 89.9%(72/81)].Cancer was present in one lesion,in which a type Ⅵ pit pattern was also present within the same lesion.In our study,serrated lesions of the colorectum also possessed the features described in previous reports of conventional colonoscopic findings.The pit pattern diagnosis using magnifying colonoscopy,particularly magnified colonoscopic findings using subclassifications of surface architecture,reflected the pathological characteristics of SSA/Ps and TSAs,and will be useful for colonoscopic diagnosis.CONCLUSION:We suggest that this system could be a good diagnostic tool for SSA/Ps using magnifying colonoscopy. | Shinya Ishigooka Masahito Nomoto Nobuyuki Obinata Yoshichika Oishi Yoshinori Sato Satoko Nakatsu Midori Suzuki Yoshiko Ikeda Tadateru Maehata Tomoaki Kimura Yoshiyuki Watanabe Takashi Nakajima Hiro-o Yamano Hiroshi Yasuda Fumio Itoh | 2012 | World Journal of Gastroenterology2012，18，32： | 11 |
| 4 | Crosstalk between angiogenesis, cytokeratin-18, and insulin resistance in the progression of non-alcoholic steatohepatitis显示文摘AIM: To elucidate the possible crosstalk between angiogenesis, cytokeratin-18 (CK-18), and insulin resistance (IR) especially in patients with non-alcoholic steatohepatitis (NASH).METHODS: Twenty-eight patients with NASH and 11 with simple fatty liver disease (FL) were enrolled in this study and underwent clinicopathological examination. The measures of angiogenesis, CK-18, and IR employed were CD34-immunopositive vessels, CK-18immunopositive cells, and homeostasis model assessment of IR (HOMA-IR), respectively. The correlations of these factors with NASH were elucidated.RESULTS: Significant development of hepatic neovascularization was observed only in NASH, whereas almost no neovascularization could be observed in FL and healthy liver. The degree of angiogenesis was almost parallel to liver fibrosis development, and both parameters were positively correlated. Similarly, CK-18expression and HOMA-R were signifi cantly increased in NASH as compared with FL and healthy liver. Furthermore, CK-18 and HOMA-IR were also positively correlated with the degree of neovascularization. CONCLUSION: These results indicate that the crosstalk between angiogenesis, CK-18, and IR may play an important role in the onset and progression of NASH. | Mitsuteru Kitade Hitoshi Yoshiji Ryuichi Noguchi Yasuhide Ikenaka Kosuke Kaji Yusaku Shirai Masaharu Yamazaki Masahito Uemura Junichi Yamao Masao Fujimoto Akira Mitoro Masahisa Toyohara Masayoshi Sawai Motoyuki Yoshida Chie Morioka Tatsuhiro Tsujimoto Hideto Kawaratani Hiroshi Fukui | 2009 | World Journal of Gastroenterology2009，15，41： | 9 |
| 5 | Feasibility of single-incision laparoscopic cholecystectomy for acute cholecystitis显示文摘AIM: To assess the safety of single-incision laparoscopic cholecystectomy(SILC) for acute cholecystitis.METHODS: All patients who underwent SILC at Sano Hospital(Kobe, Japan) between January 2010 and December 2014 were included in this retrospective study. Clinical data related to patient characteristics and surgical outcomes were collected from medical records. The parameters for assessing the safety of the procedure included operative time, volume of blood loss, achievement of the critical view of safety, use of additional trocars, conversion to laparotomy, intraoperative and postoperative complications, and duration of postoperative hospital stay. Patient backgrounds were statistically compared between those with and without conversion to laparotomy.RESULTS: A total of 100 patients underwent SILC for acute cholecystitis during the period. Preoperative endoscopic treatment was performed for suspected choledocholithiasis in 41 patients(41%). The mean time from onset of acute cholecystitis was 7.7 d. According to the Updated Tokyo Guidelines(TG13) for the severity of cholecystitis, 86 and 14 patients had grade Ⅰ and grade Ⅱ acute cholecystitis, respectively. The mean operative time was 87.4 min. The mean estimated blood loss was 80.6 mL. The critical view of safety was obtained in 89 patients(89%). Conversion laparotomy was performed in 12 patients(12%). Postoperative complications of Clavien-Dindo grade Ⅲ or greater were observed in 4 patients(4%). The mean duration of postoperative hospital stay was 5.7 d. Patients converted from SILC to laparotomy tended to have higher days after onset.CONCLUSION: SILC is feasible for acute cholecystitis; in addition, early surgical intervention may reduce the risk of laparotomy conversion. | Taro Ikumoto Hidetsugu Yamagishi Mineo Iwatate Yasushi Sano Masahito Kotaka Yasuo Imai | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，19： | 8 |
| 6 | Safety and efficacy of carbon dioxide insufflation during gastric endoscopic submucosal dissection显示文摘AIM: To compare the safety and efficacy of carbon dioxide(CO2) and air insufflation during gastric endoscopic submucosal dissection(ESD).METHODS: This study involved 116 patients who underwent gastric ESD between January and December 2009.After eliminating 29 patients who fit the exclusion criteria,87 patients,without known pulmonary dysfunction,were randomized into the CO2 insufflation(n = 36) or air insufflation(n = 51) groups.Standard ESD was performed with a CO2 regulation unit(constant rate of 1.4 L/min) used for patients undergoing CO2 insufflation.Patients received diazepam for conscious sedation and pentazocine for analgesia.Transcutaneous CO2 tension(Ptc CO2) was recorded 15 min before,during,and after ESD with insufflation.Ptc CO2,the correlation between Ptc CO2 and procedure time,and ESD-related complications were compared between the two groups.Arterial blood gases were analyzed after ESD in the first 30 patients(12 with CO2 and 18 with air insufflation) to assess the correlation between arterial blood CO2 partial pressure(Pa CO2) and Ptc CO2.RESULTS: There were no differences in respiratoryfunctions,median sedative doses,or median procedure times between the groups.Similarly,there was no significant difference in post-ESD blood gas parameters,including Pa CO2,between the CO2 and air groups(44.6 mm Hg vs 45 mm Hg).Both groups demonstrated median p H values of 7.36,and none of the patients exhibited acidemia.No significant differences were observed between the CO2 and air groups with respect to baseline Ptc CO2(39 mm Hg vs 40 mm Hg),peak Ptc CO2 during ESD(52 mm Hg vs 51 mm Hg),or median Ptc CO2 after ESD(50 mm Hg vs 50 mm Hg).There was a strong correlation between Pa CO2 and Ptc CO2(r = 0.66; P < 0.001).The incidence of Mallory-Weiss tears was significantly lower with CO2 insufflation than with air insufflation(0% vs 15.6%,P = 0.013).CO2 insufflation did not cause any adverse events,such as CO2 narcosis or gas embolisms.CONCLUSION: CO2 insufflation during gastric ESD results in similar blood gas levels as air insufflation,and also reduces the incidence of Mallory-Weiss tears. | Jun Takada Hiroshi Araki Fumito Onogi Takayuki Nakanishi Masaya Kubota Takashi Ibuka Masahito Shimizu Hisataka Moriwaki | 2015 | World Journal of Gastroenterology2015，21，26： | 6 |
| 7 | Innate immune reactivity of the liver in rats fed a choline-deficient L-amino-acid-defined diet显示文摘瞄准:调查肿瘤坏死 factor-alpha (TNF-alpha ) 的天生的有免疫力的反应,像使用费的受体 4 (TLR4 ) ,并且在非酒精的 steatohepatitis (NASH ) 的肝的 CD14 为老鼠建模。方法:男 F344 老鼠被喂一本胆碱缺乏的 L-amino-acid-defined (CDAA ) 食谱。老鼠在食谱的 4 或 8 wk 以后被打死,并且他们的肝为免疫被移开组织化学的调查和 RNA 抽取。肝标本是为 TNF-alpha, TLR4,和 CD14 染色的免疫。TNF-alpha, TLR4,和 CD14 的基因表情被 reverse-transcriptase 聚合酶链反应(RT-PCR ) 决定。Kupffer 房间被 Percoll 坡度远心沉淀从肝孤立,并且当时是有教养的测量 TNF-alpha 生产。结果:在老鼠作为与控制相比显著地增加了的 CDAA-fed 的 TNF-alpha 的浆液和肝层次组织,,与 steatohepatitis 的前进做了免疫组织化学的值和 TNF-alpha, TLR4,和 CD14 的基因表达式。从 CDAA-fed 老鼠的孤立的 Kupffer 房间的 TNF-alpha 生产被脂肪的多糖刺激提高。结论:TNF-alpha, TLR4,和 CD14 的表情在 NASH 模型增加了,建议 TLR4 和调停 CD14 的内毒素肝损坏可以也发生在 NASH。 | Hideto Kawaratani Tatsuhiro Tsujimoto Toshiyuki Kitazawa Mitsuteru Kitade Hitoshi Yoshiji Masahito Uemura Hiroshi Fukui | 2008 | World Journal of Gastroenterology2008，14，43： | 6 |
| 8 | Narrow-band imaging observation of colorectal lesions using NICE classification to avoid discarding significant lesions显示文摘AIM: To assess the risk of failing to detect diminutive and small colorectal cancers with the 'resect and discard' policy.METHODS: Patients who received colonoscopy and polypectomy were recruited in the retrospective study. Probable histology of the polyps was predicted by six colonoscopists by the use of NICE classification. The incidence of diminutive and small colorectal cancersand their endoscopic features were assessed. RESULTS: In total, we found 681 cases of diminutive(1-5 mm) lesions in 402 patients and 197 cases of small(6-9 mm) lesions in 151 patients. Based on pathology of the diminutive and small polyps, 105 and 18 were non-neoplastic polyps, 557 and 154 were low-grade adenomas, 18 and 24 were high-grade adenomas or intramucosal/submucosal(SM) scanty invasive carcinomas, 1 and 1 were SM deeply invasive carcinoma, respectively. The endoscopic features of invasive cancer were classified as NICE type 3 endoscopically.CONCLUSION: The risk of failing to detect diminutive and small colorectal invasive cancer with the 'resect and discard' strategy might be avoided through the use of narrow-band imaging observation with the NICE classification scheme and magnifying endoscopy. | Santa Hattori Mineo Iwatate Wataru Sano Noriaki Hasuike Hidekazu Kosaka Taro Ikumoto Masahito Kotaka Akihiro Ichiyanagi Chikara Ebisutani Yasuko Hisano Takahiro Fujimori Yasushi Sano | 2014 | World Journal of Gastrointestinal Endoscopy2014，6，12： | 5 |
| 9 | Combined treatment of vitamin K_2 and angiotensin-converting enzyme inhibitor ameliorates hepatic dysplastic nodule in a patient with liver cirrhosis显示文摘Although it is well known that the hepatocellular carcinoma (HCC) is an ominous complication in patients with liver cirrhosis, there has been no approved drug to prevent the development of HCC to date. We previously reported that the combined treatment of vitamin K2 (VK) and angiotensin-converting enzyme inhibitor (ACE-I) significantly suppressed the experimental hepatocarcinogenesis. A 66-year-old Japanese woman with hepatitis C virus (HCV)-related liver cirrhosis developed a dysplastic nodule in the liver detected by enhanced computed tomography along with elevation of the tumor markers, namely, alpha-fetoprotein (AFP) and lectin-reactive demarcation (AFP-L3), suggesting the presence of latent HCC. After oral administration of VK and ACE-I, the serum levels of both AFP and AFP-L3 gradually decreased without any marked alteration of the serum aminotransferase activity. After one-year treatment, not only the serum levels of AFP and AFP-L3 returned to the normal ranges, but also the dysplastic nodule disappeared. Since both VK and ACE-I are widely used without serious side effects, this combined regimen may become a new strategy for chemoprevention against HCC. | Hitoshi Yoshiji Ryuichi Noguchi Masaharu Yamazaki Yasuhide Ikenaka Masayoshi Sawai Masatoshi Ishikawa Hideto Kawaratani Tsuyoshi Mashitani Mitsuteru Kitade Kosuke Kaji Masahito Uemura Junichi Yamao Masao Fujimoto Akira Mitoro Masahisa Toyohara Motoyuki Yoshida Hiroshi Fukui | 2007 | World Journal of Gastroenterology2007，13，23： | 5 |
| 10 | Obesity and hepatocellular carcinoma: targeting obesity-related inflammation for chemoprevention of liver carcinogenesis显示文摘 | Masahito Shimizu Takuji Tanaka Hisataka Moriwaki | 2013 | Seminars in Immunopathology2013，，2： | 5 |
| 11 | Factors 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 | 2012 | World Journal of Gastroenterology2012，18，16： | 4 |
| 12 | Diagnosis of the jejunoileal lymphoma by double-balloon endoscopy显示文摘AIM:To investigate the feasibility of double-balloon endoscopy(DBE) to detect jejunoileal lymphoma,compared with fluorodeoxyglucose positron emission tomography(FDG-PET).METHODS:Between March 2004 and January 2011,we histologically confirmed involvement of malignant lymphoma of the jejunoileum in 31 patients by DBE and biopsy.In 20 patients of them,we performed with FDGPET.We retrospectively reviewed the records of these 20 patients.Their median age was 64 years(range 50-81).In the 20 patients,the pathological diagnosis of underlying non-Hodgkin's lymphoma(NHL) comprised follicular lymphoma(FL,n = 12),diffuse large B cell lymphoma(DLBCL,n = 4),mantle cell lymphoma(MCL,n = 2),enteropathy associated T cell lymphoma(ETL,n = 1) and anaplastic large cell lymphoma(ALCL,n = 1).RESULTS:Ten cases showed accumulation by FDGPET(50%).FDG-PET was positive in 3 of 12 FL cases(25%) while in 7 of 8 non-FL cases(88%,P < 0.05).Intestinal FL showed a significantly lower rate of positive FDG-PET,in comparison with other types of lymphoma.Cases with endoscopically elevated lesions(n = 10) showed positive FDG-PET in 2(20%),but those with other type NHL did in 8 of 10(80%,P < 0.05).When the cases having elevated type was compared with those not having elevated type lesion,the number of cases that showed accumulation of FDG was significantly smaller in the former than in the latter.CONCLUSION:In a significant proportion,small intestinal involvement cannot be pointed out by FDG-PET.Especially,FL is difficult to evaluate by FDG-PET but essentially requires DBE. | Takashi Ibuka Hiroshi Araki Tomohiko Sugiyama Takayuki Nakanishi Fumito Onogi Masahito Shimizu Takeshi Hara Tsuyoshi Takami Hisashi Tsurumi Hisataka Moriwaki | 2013 | World Journal of Gastrointestinal Endoscopy2013，5，3： | 4 |
| 13 | Advantages of using the CRISPR/Cas9 system of genome editing to investigate male reproductive mechanisms using mouse models显示文摘基因混乱技术长为男繁殖生物学的学习是有益的。因为包含的时间和费用,除了在专家实验室,然而,这种技术不是一个可行方法。基因混乱的 CRISPR/Cas9 系统的来临迎来了基因调查的一个新时代。现在,在很小的时间并且以很小的成本产生破坏基因的老鼠模型是可能的。这篇热点文章讨论这种技术的应用程序在一些能被用来揭示男繁殖机制的必要、非本质的基因部件的这个系统的未来使用学习男富饶和外表的遗传。 | Samantha AM Young R John Aitken Masahito Ikawa | 2015 | Asian Journal of Andrology2015，17，4： | 4 |
| 14 | 罗哌卡因硬膜外阻滞引起的迟发性超敏反应显示文摘1995年开始使用的罗哌卡因,是一种氨基类局麻药。它由纯光学异构组成,心脏毒性低。现报告罗哌卡因引起的迟发性超敏反应。 | Masanori Ban Masahito Hattori 苏珊 | 2005 | 英国医学杂志中文版2005，8，2： | 4 |
| 15 | Characterization of CD133 + hepatocellular carcinoma cells as cancer stem/progenitor cells显示文摘 | Atsushi Suetsugu Masahito Nagaki Hitomi Aoki Tsutomu Motohashi Takahiro Kunisada Hisataka Moriwaki | 2006 | Biochemical and Biophysical Research Communications2006，，4： | 4 |
| 16 | Immunotherapy for nonalcoholic steatohepatitis using the multiple cytokine production modulator Y-40138显示文摘AIM:To investigate the possible use of the multiple cytokine production modulator,Y-40138,as a novel immunotherapy in the rat nonalcoholic steatohepatitis (NASH) model. METHODS:We allocated 6-wk-old male F344 rats to choline-supplemented,L-amino acid-defined (CSAA) diet (control group),CSAA diet + Y-40138 (control + Y-40138 group),choline-def icient,L-amino acid-def ined (CDAA) diet (NASH group),or CDAA diet + Y-40138 (NASH + Y-40138 group). In each group,we measured the plasma alanine aminotransferase (ALT) levels,and the plasma and liver levels of tumor necrosis factor-α (TNF-α),interferon-γ (IFN-γ),and interleukin-10 (IL-10). Tissue specimens of phosphate buffered saline-perfused liver were subjected to hematoxylin and eosin staining,Azan staining,Sirius red staining,and immunohistochemical staining (for Kupffer cells and TNF-α). We then extracted Kupffer cells from the collagenase-perfused livers using the Percoll gradient centrifugation method,and measured the TNF-α levels in the supernatant (in vitro TNF-α production by Kupffer cells) using an enzyme-linked immunosorbent assay kit.RESULTS:In comparison to the NASH group,serumALT elevation was mild,production of serum and liver TNF-α and IFN-γ was inhibited,and IL-10 production was increased in the NASH + Y-40138 group. Amelioration of liver histology was also noted in the NASH + Y-40138 group. Kupffer cell immunohistochemical staining revealed no differences between groups,whereas TNF-α immunohistochemical staining showed fewer stained cells in the NASH + Y-40138 group than in the NASH group. The TNF-α levels in the in-vitro Kupffer cell culture supernatant were lower in the NASH + Y-40138 group than in the NASH group.CONCLUSION:Administration of Y-40138 to NASH model rats reduced hepatic inflammation and suppressed fibrosis. These results indicate that the multiple cytokine production modulator,Y-40138,is promising as a novel treatment for NASH. | Tatsuhiro Tsujimoto Hideto Kawaratani Toshiyuki Kitazawa Hitoshi Yoshiji Masao Fujimoto Masahito Uemura Hiroshi Fukui | 2009 | World Journal of Gastroenterology2009，15，44： | 4 |
| 17 | Real-world efficacy of daclatasvir and asunaprevir with respect to resistance-associated substitutions显示文摘AIM To investigate daclatasvir(DCV) and asunaprevir(ASV) efficacy in hepatitis C(HCV) patients, with respect to resistance-associated substitutions(RASs).METHODS A total of 392 HCV-infected patients from multiple centers were included in this study. We evaluated their clinical courses and sustained virologic responses(SVR) according to pretreatment factors(gender, age, history of interferon-based regimens, platelet counts, level of viremia, pretreatment NA5A:L31, and Y93 substitutions). We also analyzed the pretreatment and post-treatment major RASs of NS3:D168, NS5A:L31 and Y93 substitutions using a direct-sequencing method in 17 patients who were unable to achieve SVR at 12 wk after treatment completion(SVR12).RESULTS The overall SVR12 rate was 88.3%. Thirty-one patients discontinued treatment before 24 wk because of adverse events, 23 of whom achieved SVR12. There were no significant differences in SVR12 rates with respect to gender, age, history of interferon-based regimens, and platelet counts. The SVR12 rate in patients with viral loads of ≥ 6.0 log IU/m L was significantly lower than those with viral loads of < 6.0 log IU/m L(P < 0.001). The SVR12 rate in patients with Y93 substitution-positive was significantly lower than those with Y93 substitution-negative(P < 0.001). The L31 substitution-positive group showed a lower SVR12 rate than the L31 substitution-negative group, but the difference was not statistically significant. Seventeen patients who did not achieve SVR12 and had available pretreatment and post-treatment sera had additional RASs in NS3:D168, NS5:L31, and Y93 substitution at treatment failure.CONCLUSION Combination of DCV and ASV is associated with a high SVR rate. Baseline RASs should be thoroughly assessed to avoid additional RASs after treatment failure. | Hideki Fujii Atsushi Umemura Taichiro Nishikawa Kanji Yamaguchi Michihisa Moriguchi Hideki Nakamura Kohichiroh Yasui Masahito Minami Saiyu Tanaka Hiroki Ishikawa Hiroyuki Kimura Shiro Takami Yasuyuki Nagao Toshihide Shima Yoshito Itoh | 2017 | World Journal of Hepatology2017，9，25： | 3 |
| 18 | Eosinophilic cholecystitis along with pericarditis caused by Ascaris lumbricoides: A case report显示文摘Although the etiology of eosinophilic cholecystitis is still obscure, the postulated causes include allergies, parasites, hypereosinophilic syndrome, and eosinophilic gastroenteritis. It is sometimes accompanied by several complications, but a simultaneous onset with pericarditis is very rares. A 28-year-old woman complained of acute right hypocondrial pain and dyspnea associated with systemic eruption. Several imaging modalities revealed acute cholecystitis and pericarditis with massive pericardial effusion. A marked peripheral blood eosinophilia was observed, and the eruption was diagnosed as urticaria. Her serum had a high titer of antibody against Ascaris lumbricoides . Treatment with albendazole drastically improved all clinical manifestations along with normalization of the imaging features and eosinophilia. We report herein a rare case of simultaneous onset of acute cholecystitis and pericarditis associated with a marked eosinophilia caused by parasitic infection. | Kosuke Kaji Hitoshi Yoshiji Masahide Yoshikawa Masaharu Yamazaki Yasuhide Ikenaka Ryuichi Noguchi Masayoshi Sawai Masatoshi Ishikawa Tsuyoshi Mashitani Mitsuteru Kitade Hideto Kawaratani Masahito Uemura Junichi Yamao Masao Fujimoto Akira Mitoro Masahisa Toyohara Motoyuki Yoshida Hiroshi Fukui | 2007 | World Journal of Gastroenterology2007，13，27： | 3 |
| 19 | Contrast uptake in primary hepatic angiosarcoma on gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging in the hepatobiliary phase显示文摘Primary hepatic angiosarcoma is the most common malignant mesenchymal tumor of the liver. It has a poor prognosis and various appearances on magnetic resonance(MR) images. We report a case of hepatic angiosarcoma with a characteristic appearance on gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid(Gd-EOB-DTPA)-enhanced MR imaging in the hepatobiliary phase. A 72-year-old man was admitted with a complaint of abdominal pain. Gd-EOBDTPA-enhanced MR imaging revealed a liver tumor that showed slight hyperintensity in the hepatobiliary phase. These findings suggested Gd-EOB-DTPA uptake in the tumor. An autopsy revealed the solid proliferation and sinusoidal spreading of hepatic angiosarcoma cells. Immunohistochemistry indicated that the tumor was negative for OATP1B3. Gd-EOB-DTPA uptake in the liver tumor in the hepatobiliary phase suggested sinusoidal tumor invasion with residual normal hepatocytes. | Manabu Hayashi Satoshi Kawana Hirofumi Sekino Kazumichi Abe Naoki Matsuoka Masahito Kashiwagi Ken Okai Yukiko Kanno Atsushi Takahashi Hiroshi Ito Yuko Hashimoto Hiromasa Ohira | 2018 | World Journal of Hepatology2018，10，1： | 3 |
| 20 | 放射防护体系的演进显示文摘建立在线性无阈假设上的现行辐射防护体系对工作人员和公众成员所受剂量的最小化具有很大的贡献。然而,因为线性无阈意味着不管剂量多么小辐射总是有害的,所以已经引起人们的“辐射恐惧”并因过度审管而造成资源的浪费。作者重温了辐射健康效应的研究结果,包括对辐射工作人员的重大流行病学研究。发现在低于目前最大剂量限值(工作人员:50mSv/y,公众成员:5mSv/y)的辐射照射情形下没有明显的有害健康效应的证据,而二十世纪后半叶这些限值在全世界被广泛采用。既然DNA修复、细胞凋亡、适应性反等生物防预机理的存在得到了公认,那么线性假设就不能说成是“科学的”。越来越多的证据表明存在着辐射危险的阈效应。为了解决低剂量问题。在新的放射防护体系中应当引入“实际的”阈值或“事实上的安全剂量”概念。“实际的”阈值可定义为某一剂量水平,低于此剂量水平就不会诱发可观察到的放射所致的癌症或遗传效应。除了医疗目的有意照射以外,如果工作人员和公众成员从受照中得不到利益,则辐射照射应当保持在“实际的”阈值之下。假设目前的剂量限值低于“实际的”阈值且没有“辐射损害”,那么对于职业照射和公众照射就不需要“正当性”和“最优化(ALARA)”原则。这样一来,允许以对社会的利益抵销对个人的辐射损害的“正当性”伦理学问题也就能够得到解决。而且,用健康和安全换取经济利益的“最优化”的伦理问题也可以得到解决。只有通过引入“实际的”阈值概念的方法才能使辐射防护体系建立在面向个人的理念上,并且满足21世纪伦理学的平等原则。 | Masahito KANEKO 常学奇 | 2005 | 辐射防护通讯2005，25，2： | 3 |
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