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1Radioprotective Effect of Lyophyllum Decastes and the Effect on Immunological Functions in Irradiated Mice显示文摘In this study, to explore the radiation protection effects of Lyophyllum Decastes Sing (LDS), a hot distilled-water extract of LDS was orally administered at a dosage of 250mg/kg every other day for a period of 2 weeks in irradiated mice. An automatic blood cell counter was used to measure white blood cells (lymphocytes, monocyte, and granulocytes) one day before X-ray irradiation, and 3 hours, 12 hours, 24 hours, 3 days, 7 days, 15 days and 30 days after irradiation. The Dunnett test was used to examine statistical significance of differences. The peripheral blood cell counts in the Lyophyllum-administered non-irradiation group revealed an increase in the numbers of leukocytes, lymphocytes and monocytes. For 2 Gy whole body radiation, a significant statistical difference was found between the X-ray group and the Lyophyllum plus X-ray group in the numbers of leukocytes, lymphocytes and monocytes. The results suggest that Lyophyllum restrains blood cell-count falling after irradiation, which is probably mediated at least in part by hemopoietic function, and NK and LAK activities seems to play a role in preventing secondary infections associated with irradiation.Takashi Nakamura Yuka Itokawa Masayuki Tajima Yuuichi Ukawa Kwang-Ho Cho Jung-Sook Choi Torao Ishida Yeunhwa Gu 2007Journal of Traditional Chinese Medicine2007,27,1:13
2^(18)F-fluorodeoxyglucose positron emission tomography in the diagnosis of small pancreatic cancer显示文摘AIM:To investigate the role of 18 F-fluorodeoxyglucose positron emission tomography(FDG-PET) in the diagnosis of small pancreatic cancer. METHODS:This study involved 31 patients with proven invasive ductal cancer of the pancreas.The patients were divided into 3 groups according to the maximum diameter of the tumor:TS1(maximum tumor size≤2.0 cm) ,TS2(>2.0 cm and≤4.0 cm) or TS3-4(>4.0 cm) .The relationships between the TS and various diagnostic tools,including FDG-PET with dual time point evaluation,were analyzed. RESULTS:The tumors ranged from 1.3 to 11.0 cm in diameter.Thirty of the 31 patients(97%) had a positive FDG-PET study.There were 5 patients classified as TS1,15 as TS2 and 11 as TS3-4.The sensitivity of FDG-PET,computed tomography(CT) and magnetic resonanceimaging(MRI) were 100%,40%,0%in TS1,93%,93%,89%in TS2 and 100%,100%,100%in TS3-4. The sensitivity of FDG-PET was significantly higher in comparison to CT and MRI in patients with TS1(P< 0.032) .The mean standardized uptake values(SUVs) did not show a significant difference in relation to the TS(TS1:5.8±4.5,TS2:5.7±2.2,TS3-4:8.2±3.9) ,respectively.All the TS1 tumors(from 13 to 20 mm) showed higher SUVs in FDG-PET with dual time point evaluation in the delayed phase compared with the early phase,which suggested the lesions were malignant. CONCLUSION:These results indicate that FDG-PET with dual time point evaluation is a useful modality for the detection of small pancreatic cancers with a diameter of less than 20 mm.Keiichi Okano Keitaro Kakinoki Shintaro Akamoto Masanobu Hagiike Hisashi Usuki Yuka Yamamoto Yoshihiro Nishiyama Yasuyuki Suzuki 2011World Journal of Gastroenterology2011,17,2:12
3Hyperglycemia is a significant prognostic factor of hepatocellular carcinoma after curative therapy显示文摘AIM:To evaluate whether metabolic factors are related to distant recurrence of hepatocellular carcinoma(HCC) and survival after curative treatment.METHODS:This retrospective study included 344 patients whose HCC was treated curatively by radiofrequency ablation(RFA) therapy.The mean age was 67.6 years and the mean observation period was 4.04 years.The etiological background of liver disease was hepatitis B virus infection in 30,hepatitis C virus infection in 278,excessive alcohol drinking in 9,and other in 27 patients.The Child-Pugh classification grade was A(n = 307) or B(n = 37).The number of HCC nodules was one in 260,two in 61,and three in 23 patients.For surveillance of HCC recurrence after curative therapy with RFA,patients were radiologically evaluated every 3 mo.Factors associated with distant recurrence of HCC or survival were studied.RESULTS:Inadequate maintenance of blood glucose in diabetic patients was associated with higher incidence of distant recurrence.The 1-,2-,and 3-year recurrence rates were significantly higher in diabetic patients with inadequate maintenance of blood glucose compared with the others:50.6% vs 26.8%,83.5% vs 54.4%,and 93.8% vs 73.0%,respectively(P = 0.0001).Inadequate maintenance of blood glucose was an independent predictor of distant recurrence [adjusted relative risk 1.97(95%CI,1.33-2.91),(P = 0.0007)] after adjustment for other risk factors,such as number of HCC nodules [2.03(95%CI,1.51-2.73),P < 0.0001] and initial level of serum alpha fetoprotein(AFP) [1.43(95%CI,1.04-1.97),P = 0.028].Obesity was not an independent predictor of recurrence.The incidence of distant recurrence did not differ between diabetic patients with adequate maintenance of blood glucose and non-diabetic patients.Among 232 patients who had HCC recurrence,138 had a second recurrence.The 1-,2-,and 3-year rates of second recurrence were significantly higher in diabetic patients with inadequate maintenance of blood glucose than in the others:9.0% vs 5.9%,53.1% vs 24.3%,and 69.6% vs 42.3%,respectively(P = 0.0021).Inadequate maintenance of blood glucose in diabetic patients [1.99(95%CI,1.23-3.22),P = 0.0049] and presence of multiple HCC nodules [1.53(95%CI,1.06-2.22),P = 0.024] were again significantly associated with second HCC recurrence.Inadequate maintenance of blood glucose in diabetic patients was also a significant predictor of poor survival [2.77(95%CI,1.38-5.57),P = 0.0046] independent of excessive alcohol drinking [6.34(95%CI,1.35-29.7),P = 0.019],initial level of serum AFP [3.40(95%CI,1.88-6.18),P < 0.0001] and Child-Pugh classification grade B [2.24(95%CI,1.12-4.46),P = 0.022].Comparing diabetic patients with inadequate maintenance of blood glucose vs the others,the 1-,2-,and 3-year survival rates were significantly lower in diabetic patients with inadequate maintenance of blood glucose:92% vs 99%,85% vs 96%,and 70% vs 92%,respectively(P = 0.0003).CONCLUSION:Inadequate maintenance of blood glucose in diabetic patients is a significant risk factor for recurrence of HCC and for poor survival after curative RFA therapy.Takanori Hosokawa Masayuki Kurosaki Kaoru Tsuchiya Shuya Matsuda Masaru Muraoka Yuichiro Suzuki Nobuharu Tamaki Yutaka Yasui Toru Nakata Takashi Nishimura Shoko Suzuki Ken Ueda Hiroyuki Nakanishi Jun Itakura Yuka Takahashi Namiki Izumi 2013World Journal of Gastroenterology2013,19,2:12
4Immunoglobulin G4-related gastrointestinal diseases, are they immunoglobulin G4-related diseases?显示文摘In immunoglobulin G4(IgG4)-related disease(RD),organ enlargement or nodular lesions consisting of abundant infiltration of lymphocytes and IgG4-positive plasma cells and fibrosis are seen in various organs.Although infiltration of many IgG4-positive plasma cells is detected in the gastric and colonic mucosa and major duodenal papilla of patients with autoimmune pancreatitis,it cannot be diagnosed as a gastrointestinal lesion involved in IgG4-RD,because none of the following is observed in these lesions:a mass-like formation;dense fibrosis;or obliterative phlebitis.Based on our review of the literature,there appear to be two types of IgG4-related gastrointestinal disease.One is a gastrointestinal lesion showing marked thickening of the wall of the esophagus and stomach,consisting of dense fibrosis with abundant infiltration of IgG4-positive plasma cells,which usually show submucosal spreading.The other is an IgG4-related pseudotumor occurring in gastrointestinal regions such as the stomach,colon,and major duodenal papilla,showing polypoid or mass-like lesions.Most solitary IgG4-related gastrointestinal lesions that are not associated with other IgG4-RD appear to be difficult to diagnose.It is of utmost importance to rule out malignancy.However,these lesions may respond to steroid therapy.To avoid unnecessary resection,IgG4-related gastrointestinal diseases should be considered in the differential diagnosis.Satomi Koizumi Terumi Kamisawa Sawako Kuruma Taku Tabata Kazuro Chiba Susumu Iwasaki Yuka Endo Go Kuwata Koichi Koizumi Tooru Shimosegawa Kazuichi Okazaki Tsutomu Chiba 2013World Journal of Gastroenterology2013,19,35:12
5Expression of vascular endothelial growth factor and its receptors VEGFR-1 and 2 in gastrointestinal stromal tumors,leiomyomas and schwannomas显示文摘AIM: To investigate the role of vascular endothelial growth factor (VEGF) and its receptors VEGFR-1 and 2 in the growth and differentiation of gastrointestinal stromal tumors (GISTs). METHODS: Thirty-three GISTs, 15 leiomyomas and 6 schwannomas were examined by immunohistochemistry in this study. RESULTS: VEGF protein was expressed in the cytoplasm of tumor cells, and VEGFR-1 and 2 were expressed both in the cytoplasm and on the membrane of all tumors. Immunohistochemical staining revealed that 26 GISTs (78.8%), 9 leiomyomas (60.0%) and 3 schwannomas (50.0%) were positive for VEGF; 24 GISTs (72.7%), 12 leiomyomas (80.0%) and 4 schwannomas (66.7%) were positive for VEGFR-1; 30 GISTs (90.9%), 5 leiomyomas (33.3%) and 4 schwannomas (66.7%) were positive for VEGFR-2. VEGFR-2 expression was statistically different between GISTs and leiomyomas (p < 0.0001). However, there was no correlation between the expression of VEGF pathway componenets and the clinical risk categories. CONCLUSION: Our results suggest that the VEGF pathway may play an important role in the differentiation of GISTs, leiomyomas and schwannomas.Toshiyuki Nakayama Yang Cheul Cho Yuka Mine Ayumi Yoshizaki Shinji Naito Chun Yang Wen Ichiro Sekine 2006World Journal of Gastroenterology2006,12,38:9
6Factors correlating with acoustic radiation force impulse elastography in chronic hepatitis C显示文摘AIM: To investigate the factors other than fibrosis stage correlating with acoustic radiation force impulse(ARFI) elastograpy in chronic hepatitis C. METHODS: ARFI elastograpy was performed in 108 consecutive patients with chronic hepatitis C who underwent a liver biopsy. The proportion of fibrosis area in the biopsy specimens was measured by computerassisted morphometric image analysis. RESULTS: ARFI correlated significantly with fibrosis stage(β = 0.1865, P < 0.0001) and hyaluronic acid levels(β = 0.0008, P = 0.0039) in all patients by multiple regression analysis. Fibrosis area correlated significantly with ARFI by Spearman's rank correlation test but not by multiple regression analysis. ARFI correlated significantly with body mass index(BMI)(β =-0.0334, P = 0.0001) in F 0 or F 1, with γ-glutamyltranspeptidase levels(β = 0.0048, P = 0.0012) in F 2, and with fibrosis stage(β = 0.2921, P = 0.0044) and hyaluronic acid levels(β = 0.0012, P = 0.0025) in F 3 or F 4. The ARFI cutoff value was 1.28 m/s for F ≥ 2, 1.44 m/s for F ≥ 3, and 1.73 m/s for F 4. CONCLUSION: ARFI correlated with fibrosis stage and hyaluronic acid but not with inflammation. ARFI was affected by BMI, γ-glutamyltranspeptidase, and hyaluronic acid in each fibrosis stage.Toru Nishikawa Senju Hashimoto Naoto Kawabe Masao Harata Yoshifumi Nitta Michihito Murao Takuji Nakano Yuko Mizuno Hiroaki Shimazaki Toshiki Kan Kazunori Nakaoka Yuka Takagawa Masashi Ohki Naohiro Ichino Keisuke Osakabe Kentaro Yoshioka 2014World Journal of Gastroenterology2014,20,5:7
7Smad3-STAT3 crosstalk-in pathophysiological contexts显示文摘Smad3 和 STAT3 是从血浆膜受体把信号传给原子核的细胞内部的分子。Smad3 利用 activin 的生长 / 区别因素下游地操作像受体的 kinase (ALK )-4, 5,或 7,例如转变生长因素 --(TGF-) , activin,和 myostatin。STAT3 主要 cytokines 下游地工作经由 gp130 和 Janus 家庭 kinases 施加他们的效果包括 interleukin-6 (IL-6 ) ,白血病禁止的因素(LIF ) ,和 oncostatin M。积累的证据显示那 Smad3 和 STAT3 从事串音在一高度上下文依赖者时尚,当在其它互相反对地行动时,处于一些条件合作。这里,我们在各种各样的生物上下文考察在 Smad3 和 STAT3 之间的串音,包括早 tumorigenesis,上皮间充质的转变,纤维变性,和 T 房间区别。Yuka Itoh Masao Saitoh Keiji Miyazawa 2018Acta Biochimica et Biophysica Sinica2018,50,1:6
8Effects of Fuscoporia obliqua on Postprandial Glucose Excursion and Endothelial Dysfunction in Type 2 Diabetic Patients显示文摘Postprandial hyperglycemia has been reported to elicit endothelial dysfunction and provoke future cardiovascular complications. A reduction of postprandial blood glucose levels by the glucosidase inhibitor Fuscoporia obliqua was associated with a risk reduction of cardiovascular complications, but the effects of Fuscoporia obliqua on endothelial function have never been elucidated. This study is aimed to assess the efficacy of Fuscoporia obliqua on postprandial metabolic parameters and endothelial function in type 2 diabetic patients. Postprandial peak glucose (14.47±1.27 vs. 8.50±0.53 mmol/liter), plasma glucose excursion (PPGE), and change in the area under the curve (AUC) glucose after a single loading of test meal (total 450 kcal; protein 15.3%; fat 32.3%; carbohydrate 51.4%) were significantly higher in the diet-treated type 2 diabetic patients (n=14) than the age-and sex-matched controls (n=12). The peak forearm blood flow response and total reactive hyperemic flow (flow debt repayment) during reactive hyperemia, indices of resistance artery endothelial function on strain-gauge plethysmography, were unchanged before and after meal loading in the controls. But those of the diabetics were significantly decreased 120 and 240 min after the test meal. A prior administration of Fuscoporia obliqua decreased postprandial peak glucose, PPGE, and AUC glucose. The peak forearm blood flow and flow debt repayment were inversely well correlated with peak glucose, PPGE, and AUC glucose, but not with AUC insulin or the other lipid parameters. Even a single loading of the test meal was shown to impair the endothelial function in type 2 diabetic patients, and the postprandial endothelial dysfunction was improved by a prior use of Fuscoporia obliqua. Fuscoporia obliqua might reduce macrovascular complication by avoiding endothelial injury in postprandial hyperglycemic status.Toshihiro Maenaka Masami Oshima Yuka Itokawa Takashi Masubuchi Yasuyuki Takagi Jung-Sook Choi Torao Ishida Yeunhwa Gu 2008Journal of Traditional Chinese Medicine2008,28,1:4
9Fatal liver failure caused by reactivation of lamivudine-resistant hepatitis B virus:A case report显示文摘We present a case of fetal liver failure caused by the activation of lamivudine-resistant hepatitis B virus (HBV) nine months after lamivudine treatment. A 57-year old man visited our hospital for the treatment of decompensated chronic hepatitis B. Lamivudine was started in December 2001. Subsequently, serum HBV was negative for HBV DNA with seroconversion from HBeAg to anti-HBe and improvement of liver function. However, HBV DNA and HBeAg were again detected in September 2002. He was complicated by breakthrough hepatitis and admitted to our hospital in November for severely impaired liver function. Vidarabine treatment was started and serum HBV DNA and alanine aminotransferase (ALT) decreased transiently. However, after the start of α-interferon treatment, HBV DNA level increased and liver function deteriorated. He died 1 mo after admission. An analysis of amino acid sequences in the polymerase region revealed that rtM204I/V with rtL80I/V occurred at the time of viral breakthrough. After the start of antiviral treatment, rtL180M was detected in addition to rtM204I/V and rtL80I/V, and became predominant in the terminal stage of the disease. HBV clone with a high replication capacity may be produced by antiviral treatment leading to the worsening of liver function. Antiviral therapy for patients with breakthrough hepatitis in advanced liver disease should be carefully performed.Yuka Suzuki Hiroshi Yotsuyanagi Chiaki Okuse Yoshihiko Nagase Hideaki Takahashi Kyoji Moriya Michihiro Suzuki Kazuhiko Koike Shiro Iino Fumio Itoh 2007World Journal of Gastroenterology2007,13,6:4
10Identification of sources of lead in the atmosphere by chemical speciation using X-ray absorption near-edge structure(XANES) spectroscopy显示文摘Sources of Pb pollution in the local atmosphere together with Pb species, major ions, and heavy metal concentrations in a size-fractionated aerosol sample from Higashi-Hiroshima(Japan) have been determined by X-ray absorption near-edge structure(XANES) spectroscopy, ion chromatography, and ICP-MS/AES, respectively. About 80% of total Pb was concentrated in fine aerosol particles. Lead species in the coarse aerosol particles were PbC2O4, 2PbCO3·Pb(OH)2, and Pb(NO3)2, whereas Pb species in the fine aerosol particles were PbC2O4, PbSO4, and Pb(NO3)2. Chemical speciation and abundance data suggested that the source of Pb in the fine aerosol particles was different from that of the coarse ones. The dominant sources of Pb in the fine aerosol particles were judged to be fly ash from a municipal solid waste incinerator and heavy oil combustion. For the coarse aerosol particles, road dust was considered to be the main Pb source. In addition to Pb species, elemental concentrations in the aerosols were also determined. The results suggested that Pb species in size-fractionated aerosols can be used to identify the origin of aerosol particles in the atmosphere as an alternative to Pb isotope ratio measurement.Kohei Sakata Aya Sakaguchi Masaharu Tanimizu Yuichi Takaku Yuka Yokoyama Yoshio Takahashi 2014Journal of Environmental Sciences2014,26,2:4
11Risk factors for small bowel angioectasia:The impact of visceral fat accumulation显示文摘AIM: To investigate visceral fat accumulation in association with the risk of small bowel angioectasia.METHODS: We retrospectively investigated 198 consecutive patients who underwent both capsule endoscopy and CT for investigation of obscure gastrointestinal bleeding(OGIB) from January 2009 to September 2013. The visceral fat area(VFA) and subcutaneous fat area were measured by CT, and information on comorbidities, body mass index, and medications was obtained from their medical records.Logistic regression analysis was used to evaluate associations.RESULTS: Capsule endoscopy revealed small bowel angioectasia in 18/198(9.1%) patients with OGIB.Compared to patients without small bowel angioectasia,those with small bowel angioectasia had a significantly higher VFA(96 ± 76.0 cm2 vs 63.4 ±51.5 cm2, P = 0.016) and a higher prevalence of liver cirrhosis(61% vs 22%, P < 0.001). The proportion of patients with chronic renal failure was higher in patients with small bowel angioectasia(22% vs 9%,P = 0.11). There were no significant differences in subcutaneous fat area or waist circumference. The prevalence of small bowel angioectasia progressively increased according to the VFA. Multivariate analysis showed that the VFA [odd ratio(OR) for each 10-cm2 increment = 1.1; [95% confidence interval(CI):1.02-1.19; P = 0.021] and liver cirrhosis(OR = 6.1,95%CI: 2.2-18.5; P < 0.001) were significant risk factors for small bowel angioectasia.CONCLUSION: VFA is positively associated with theprevalence of small bowel angioectasia, for which VFA and liver cirrhosis are independent risk factors in patients with OGIB.Atsuo Yamada Ryota Niikura Yuka Kobayashi Hirobumi Suzuki Shuntaro Yoshida Hirotsugu Watabe Yutaka Yamaji Yoshihiro Hirata Kazuhiko Koike 2015World Journal of Gastroenterology2015,21,23:4
12An experimental investigation of transient cavitation control on a hydrofoil using hemispherical vortex generators显示文摘Unsteady cavitation causes noise,damage,and performance decline in the marine engineering and fluid machinery systems.Therefore,finding a method to control the cavitation and its destructive effects is important for the industrial applications.In this work,we proposed a passive method to control the unsteady behavior of transient cavitation at the medium Reynolds number.For this aim,we performed an experimental study using a high-speed camera to analyze the effects of hemispherical vortex generators(VGs)on the cavitation dynamics around a hydrofoil surface.In addition,the pressure pulsations induced by the collapse of the cavity structures in the wake region of the hydrofoil were captured with a pressure transducer mounted on the wall downstream of the hydrofoil.The results showed that the instability behaviors of the cavity structures on the hydrofoil were mitigated using the proposed cavitation passive control method.In addition,the pressure pulsations in the wake region of the hydrofoil were reduced significantly.It can be concluded that the suppression of cavitation instabilities can improve the operating life and reliability of the marine and hydraulic systems.Ebrahim Kadivar Takaho Ochiai Yuka Iga Ould el Moctar 2021Journal of Hydrodynamics2021,33,6:3
13Effect of the anti-diabetic drug metformin in hepatocellular carcinomain vitro and in vivo显示文摘Hisaaki Miyoshi Kiyohito Kato Hisakazu Iwama Emiko Maeda Teppei Sakamoto Koji Fujita Yuka Toyota Joji Tani Takako Nomura Shima Mimura Mitsuyoshi Kobayashi Asahiro Morishita Hideki Kobara Hirohito Mori Hirohito Yoneyama Akihiro Deguchi Takashi Himoto Kazut 2014International Journal of Oncology2014,,1:3
14Prophylactic managements of hepatitis B viral infection inliver transplantation显示文摘Liver transplantation(LT)is a considerably effective treatment for patients with end-stage hepatitis B virus(HBV)-related liver disease.However,HBV infection often recurs after LT without prophylaxis.Since the1990s,the treatment for preventing HBV reinfection after LT has greatly progressed with the introduction of hepatitis B immunoglobulin(HBIG)and nucleos(t)ide analogues(NAs),resulting in improved patient survival.The combination therapy consisting of high-dose HBIG and lamivudine is highly efficacious for preventing the recurrence of HBV infection after LT and became the standard prophylaxis for HBV recurrence.However,mainly due to the high cost of HBIG treatment,an alternative protocol for reducing the dose and duration of HBIG has been evaluated.Currently,combination therapy using low-dose HBIG and NAs is considered as the most efficacious and cost-effective prophylaxis for post-LT HBV reinfection.Recently,NA monotherapy and withdrawal of HBIG from combination therapy,along with the development of new,potent high genetic barrier NAs,have provided promising efficacy,especially for low-risk recipients.This review summarizes the prophylactic protocol and their efficacy including prophylaxis of de novo HBV infection from anti-HBc antibody-positive donors.In addition,challenging approaches such as discontinuation of all prophylaxis and active immunity through hepatitis B vaccination are discussed.Takashi Onoe Hiroyuki Tahara Yuka Tanaka Hideki Ohdan 2016World Journal of Gastroenterology2016,22,1:3
15Hypothyroidism in patients with autoimmune pancreatitis显示文摘AIM To examine thyroid function and clinical features of hypothyroidism in autoimmune pancreatitis(AIP) patients.METHODS We examined thyroid function in 77 patients with type 1 AIP(50 males, 27 females; median age 68 years, range 33-85) diagnosed according to the Japanese diagnostic criteria for AIP 2011. We compared clinical and serological findings between patients with and without various categories of hypothyroidism. The change in hypothyroidism after steroid therapy was also examined. RESULTS Eight patients(10%) had hypothyroidism of 6 patients had subclinical hypothyroidism with a normal serum free thyroxine(FT4) and high thyroid stimulating hormone(TSH) level, and 2 patients had central hypothyroidism with low serum free triiodothyronine(FT3), FT4 and TSH levels. A significant goiter of the thyroid was not observed in any patient. There were no significant differences in age; male to female ratio; serum concentrations of IgG and IgG 4-related disease(IgG4-RD); presence of antithyroglobulin antibody, antinuclear antigen or rheumatoid factor; or presence of extrapancreatic lesions between the 6 patients with subclinical hypothyroidism and patients with euthyroidism. After steroid therapy, both subclinical and central hypothyroidism improved with improvement of the AIP.CONCLUSION Hypothyroidism was observed in 8(10%) of 77 AIP patients and was subclinical in 6 patients and central in 2 patients. Further studies are necessary to clarify whether this subclinical hypothyroidism is another manifestation of IgG4-RD.Ryoko Shimizuguchi Terumi Kamisawa Yuka Endo Masataka Kikuyama Sawako Kuruma Kazuro Chiba Taku Tabata Satomi Koizumi 2018World Journal of Gastrointestinal Pharmacology and Therapeutics2018,9,2:3
16臂形草内生菌特异DNA片段的克隆及其分子鉴定显示文摘进行了臂形草内生菌特异DNA片段的克隆及分子鉴定方法的研究。从5个臂形草品种分离的5个内生菌纯培养物中,提取基因组DNA,通过140条随机引物的RAPD分析,引物OPAK10扩增出1条约500bp的共有PCR谱带。此DNA片段命名为BE1。对BE1进行分离、纯化,经点杂交证实BE1为臂形草内生菌特异DNA片段。进一步将BE1片段进行回收、克隆和DNA序列分析。BE1在基因库中进行序列分析,未发现相关同源片段。臂形草内生菌特异DNA片段的获得,为建立一种准确、快速检测臂形草内生菌及特异内生菌方法奠定了分子生物学基础。黄贵修 Yuka Takayama Segenet Kelemu 2002热带作物学报2002,23,4:3
17Enhanced plasma ghrelin levels in Helicobacter py/ori-colonized, interleukin-1-receptortype 1-homozygous knockout (IL-1R1-/-) mice显示文摘AIM: Ghrelin is an endogenous ligand for the growth hormone secretagogue receptor, and it plays a role in stimulating the growth hormone secretion, food intake, body weight gain and gastric motility. Eradication of Helicobacterpylori (H pylori) was shown to be associated with increase of the body weight. On the other hand, H pylori infection evokes the release of gastric IL-lp. The present study was designed to investigate the involvement of the gastric IL-1 signal in the ghrelin dynamics in Hpylori-colonized mice. METHODS: Twelve-week-old female IL-1-receptor type 1-homozygous-knockout mice (IL-1R1-/-') and their wild-type littermates (WT) were orally inoculated with H pylori (Hp group), while other cohorts received oral inoculation of culture medium (Cont group). Thirteen weeks after the inoculation, the mice were examined. The plasma and stomach ghrelin levels and the gastric preproghrelin mRNA were measured. RESULTS: Although the WT mice with H pylori infection showed a significantly decreased body weight as compared with that of the animals without H pylori infection, H pylori infection did not influence the body weight of the IL-1R1-knockout (IL-1R1-/-) mice. In the H pylori-infected IL-1R1-/-mice, the total and active ghrelin levels in the plasma were significantly increased, and the gastric ghrelin level was decreased. No significant differences were noted in the gastric preproghrelin mRNA expression. CONCLUSION: Ghrelin secretion triggered by H pylori infection might be suppressed by IL-1β, the release of which is also induced by the infection, resulting in the body weight loss of mice with H pylori infection.Yuka Abiko Hidekazu Suzuki Tatsuhiro Masaoka Sachiko Nomura Kumiko Kurabayashi Hiroshi Hosoda Kenji Kangawa Toshifumi Hibi 2005World Journal of Gastroenterology2005,11,27:3
18Applicability of second‐generation colon capsule endoscope to ulcerative colitis: A clinical feasibility study显示文摘Naoki Hosoe Katsuyoshi Matsuoka Makoto Naganuma Yosuke Ida Yuka Ishibashi Kayoko Kimura Kazuaki Yoneno Shingo Usui Kazuhiro Kashiwagi Tadakazu Hisamatsu Nagamu Inoue Takanori Kanai Hiroyuki Imaeda Haruhiko Ogata Toshifumi Hibi 2013J Gastroenterol Hepatol2013,,7:3
19Impact of fecal occult blood on obscure gastrointestinal bleeding:Observational study显示文摘AIM: To elucidate the association between small bowel diseases(SBDs) and positive fecal occult blood test(FOBT) in patients with obscure gastrointestinal bleeding(OGIB).METHODS: Between February 2008 and August 2013, 202 patients with OGIB who performed both capsule endoscopy(CE) and FOBT were enrolled(mean age; 63.6 ± 14.0 years, 118 males, 96 previous overt bleeding, 106 with occult bleeding). All patients underwent immunochemical FOBTs twice prior to CE. Three experienced endoscopists independently reviewed CE videos. All reviews and consensus meeting were conducted without any information on FOBT results. The prevalence of SBDs was compared between patients with positive and negative FOBT.RESULTS: CE revealed SBDs in 72 patients(36%). FOBT was positive in 100 patients(50%) and negative in 102(50%). The prevalence of SBDs was significantly higher in patients with positive FOBT than those with negative FOBT(46% vs 25%, P = 0.002). In particular, among patients with occult OGIB, the prevalence of SBDs was higher in positive FOBT group than negative FOBT group(45% vs 18%, P = 0.002). On the other hand, among patients with previous overt OGIB, there was no significant difference in the prevalence of SBDs between positive and negative FOBT group(47% vs 33%, P = 0.18). In disease specific analysis among patients with occult OGIB, the prevalence of ulcer and tumor were higher in positive FOBT group than negative FOBT group. In multivariate analysis, only positive FOBT was a predictive factors of SBDs in patients with OGIB(OR = 2.5, 95%CI: 1.4-4.6, P = 0.003). Furthermore, the trend was evidentam on g patients with occult OGIB who underwent FOBT on the same day or a day before CE. The prevalence of SBDs in positive vs negative FOBT group were 54% vs 13% in patients with occult OGIB who underwent FOBT on the same day or the day before CE(P = 0.001), while there was no significant difference between positive and negative FOBT group in those who underwent FOBT two or more days before CE(43% vs 25%, P = 0.20).CONCLUSION: The present study suggests that positive FOBT may be useful for predicting SBDs in patients with occult OGIB. Positive FOBT indicates higher likelihood of ulcers or tumors in patients with occult OGIB. Undergoing CE within a day after FOBT achieved a higher diagnostic yield for patients with occult OGIB.Yuka Kobayashi Hirotsugu Watabe Atsuo Yamada Hirobumi Suzuki Yoshihiro Hirata Yutaka Yamaji Haruhiko Yoshida Kazuhiko Koike 2015World Journal of Gastroenterology2015,21,1:2
20Analysis software for upper atmospheric data developed by the IUGONET project and its application to polar science显示文摘To comprehensively understand the Arctic and Antarctic upper atmosphere,it is often crucial to analyze various data that are obtained from many regions.Infrastructure that promotes such interdisciplinary studies on the upper atmosphere has been developed by a Japanese inter-university project called the Inter-university Upper atmosphere Global Observation Network(IUGONET).The objective of this paper is to describe the infrastructure and tools developed by IUGONET.We focus on the data analysis software.It is written in Interactive Data Language(IDL)and is a plug-in for the THEMIS Data Analysis Software suite(TDAS),which is a set of IDL libraries used to visualize and analyze satellite-and ground-based data.We present plots of upper atmospheric data provided by IUGONET as examples of applications,and verify the usefulness of the software in the study of polar science.We discuss IUGONET’s new and unique developments,i.e.,an executable file of TDAS that can run on the IDL Virtual Machine,IDL routines to retrieve metadata from the IUGONET database,and an archive of 3-D simulation data that uses the Common Data Format so that it can easily be used with TDAS.Yoshimasa Tanaka Atsuki Shinbori Tomoaki Hori Yukinobu Koyama Shuji Abe No-rio Umemura Yuka Sato Manabu Yagi Satoru UeNo Akiyo Yatagai Yasunobu Ogawa Yoshizumi Miyoshi 2013Advances in Polar Science2013,24,4:2
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