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| 1 | Pancreatic carcinoma coexisting with chronic pancreatitis versus tumor-forming pancreatitis:Diagnostic utility of the time-signal intensity curve from dynamic contrast-enhanced MR imaging显示文摘AIM: To evaluate the ability of the time-signal intensity curve (TIC) of the pancreas obtained from dynamic contrast-enhanced magnetic resonance imaging (MRI) for differentiation of focal pancreatic masses, especially pancreatic carcinoma coexisting with chronic pancreatitis and tumor-forming pancreatitis. METHODS: Forty-eight consecutive patients who underwent surgery for a focal pancreatic mass, including pancreatic ductal carcinoma (n = 33), tumor-forming pancreatitis (n = 8), and islet cell tumor (n = 7), were reviewed. Five pancreatic carcinomas coexisted with longstanding chronic pancreatitis. The pancreatic TICs were obtained from the pancreatic mass and the pancreatic parenchyma both proximal and distal to the mass lesion in each patient, prior to surgery, and were classified into 4 types according to the time to a peak: 25 s and 1, 2, and 3 min after the bolus injection of contrast material, namely, type-Ⅰ, Ⅱ, Ⅲ, and Ⅳ, respectively, and were then compared to the corresponding histological pancreatic conditions. RESULTS: Pancreatic carcinomas demonstrated type-Ⅲ (n = 13) or Ⅳ (n = 20) TIC. Tumor-forming pancreatitis showed type-Ⅱ (n = 5) or Ⅲ (n = 3) TIC. All islet cell tumors revealed type-Ⅰ. The type-Ⅳ TIC was only recognized in pancreatic carcinoma, and the TIC of carcinoma always depicted the slowest rise to a peak among the 3 pancreatic TICs measured in each patient, even in patients with chronic pancreatitis.CONCLUSION: Pancreatic TIC from dynamic MRI provides reliable information for distinguishing pancreatic carcinoma from other pancreatic masses, and may enable us to avoid unnecessary pancreatic surgery and delays in making a correct diagnosis of pancreatic carcinoma, especially, in patients with longstanding chronic pancreatitis. | Yoshitsugu Tajima Tamotsu Kuroki Ryuji Tsutsumi Ichiro Isomoto Masataka Uetani Takashi Kanematsu | 2007 | World Journal of Gastroenterology2007，13，6： | 28 |
| 2 | NAT2*6A, a haplotype of the N-acetyltransferase 2 gene, is an important biomarker for risk of anti-tuberculosis drug-induced hepatotoxicity in Japanese patients with tuberculosis显示文摘AIM: To investigate an association between N -acetyltransferase 2 (NAT2 )-haplotypes/diplotypes and adverse effects in Japanese pulmonary tuberculosis patients. METHODS: We studied 100 patients with pulmonary TB treated with anti-TB drugs including INH. The frequencies and distributions of single nucleotide polymorphisms, haplotypes, and diplotypes of NAT2 were determined by the PCR-restriction fragment length polymorphism method, and the results were compared between TB patients with and without adverse effect, using multivariate logistic regression analysis.RESULTS: Statistical analysis revealed that the frequency of a variant haplotype, NAT2*6A , was signifi cantly increased in TB patients with hepatotoxicity, compared with those without hepatotoxicity [P = 0.001, odds ratio (OR) = 3.535]. By contrast, the frequency of a wild-type (major) haplotype, 'NAT2*4', was signif icantly lower in TB patients with hepatotoxicity than those without hepatotoxicity (P < 0.001, OR = 0.265). There was no association between NAT2-haplotypes and skin rash or eosinophilia. CONCLUSION: The present study shows that NAT2 is one of the determinants of anti-TB drug-induced hepatotoxicity. Moreover, the haplotypes, NAT2*4 and NAT2*6A, are useful new biomarkers for predicting anti- TB drug-induced hepatotoxicity. | Norihide Higuchi Naoko Tahara Katsunori Yanagihara Kiyoyasu Fukushima Naofumi Suyama Yuichi Inoue Yoshitsugu Miyazaki Tsutomu Kobayashi Koh-ichiro Yoshiura Norio Niikawa, Chun-Yang Wen, Hajime Isomoto,Saburou Shikuwa, Katsuhisa Omagari, Yohei Mizuta, Shigeru Kohno, Kazuhiro Tsukamoto Norio Niikawa Chun-Yang Wen Hajime Isomoto Saburou Shikuwa Katsuhisa Omagari Yohei Mizuta Shigeru Kohno Kazuhiro Tsukamoto | 2007 | World Journal of Gastroenterology2007，13，45： | 21 |
| 3 | Effect of biliary obstruction and internal biliary drainage on hepatic cytochrome P450 isozymes in rats显示文摘AIM: To investigate the total cytochrome P450 (CYP) content, microsomal mixed-function oxidase (MFO) activity, and expression of mRNAs for various CYP isozymes in a simple rat model of reversible obstructive jaundice. METHODS: Obstructive jaundice was created in male rats by causing bile duct obstruction with polyester tape. In another group of rats, bile duct obstruction was followed by internal biliary drainage after releasing the tape. The expression of various CYP isozyme mRNAs was semi-quantitatively assessed by competitive RT- PCR. RESULTS: The total CYP content and microsomal MFO activity showed a significant decrease after biliary obstruction, but returned to respective control levels after biliary drainage. A marked reduction in the expression of CYP1A2, 2B1/2, 2C11, 2E1, 3A1, and 3A2 mRNA was detected during biliary obstruction, while expression increased significantly toward the control level after biliary drainage. Although expression of CYP4A1 mRNA showed no reduction during biliary obstruction, it still increased significantly after biliary drainage. CONCLUSION: These results suggest that not only obstructive jaundice, but also the subsequent internal biliary drainage may affect regulatory medications of the synthesis of individual CYP isozymes differently. | Shintaro Fukushima Hiroyasu Okuno Nobuyuki Shibatani Yoshitsugu Nakahashi Toshihito Seki Kazuichi Okazaki | 2008 | World Journal of Gastroenterology2008，14，16： | 7 |
| 4 | Extrahepatic collaterals and liver damage in embolotherapy for ruptured hepatic artery pseudoaneurysm following hepatobiliary pancreatic surgery显示文摘AIM: To evaluate the effects of extrahepatic collaterals to the liver on liver damage and patient outcome after embolotherapy for the ruptured hepatic artery pseudoa- neurysm following hepatobiliary pancreatic surgery. METHODS: We reviewed 9 patients who underwent transcatheter arterial embolization (TAE) for the ruptured hepatic artery pseudoaneurysm following major hepato- biliary pancreatic surgery between June 1992 and April 2006. We paid special attention to the extrahepatic arte- rial collaterals to the liver which may affect post-TAE liver damage and patient outcome. RESULTS: The underlying diseases were all malignan- cies, and the surgical procedures included hepatopancre- atoduodenectomy in 2 patients, hepatic resection with removal of the bile duct in 5, and pancreaticoduodenec- tomy in 2. A total of 11 pseudoaneurysm developed: 4 in the common hepatic artery, 4 in the proper hepatic artery, and 3 in the right hepatic artery. Successful he- mostasis was accomplished with the initial TAE in all patients, except for 1. Extrahepatic arterial pathways to the liver, including the right inferior phrenic artery, the jejunal branches, and the aberrant left hepatic artery, were identified in 8 of the 9 patients after the completion of TAE. The development of collaterals depended on the extent of liver mobilization during the hepatic resection, the postoperative period, the presence or absence of an aberrant left hepatic artery, and the concomitant arte- rial stenosis adjacent to the pseudoaneurysm. The liver tolerated TAE without significant consequences when at least one of the collaterals from the inferior phrenic ar-tery or the aberrant left hepatic artery was present. One patient, however, with no extrahepatic collaterals died of liver failure due to total liver necrosis 9 d after TAE. CONCLUSION: When TAE is performed on ruptured hepatic artery pseudoaneurysm, reduced collateral path- ways to the liver created by the primary surgical proce- dure and a short postoperative interval may lead to an unfavorable outcome. | Yoshitsugu Tajima Tamotsu Kuroki Ryuji Tsutsumi Ichiro Sakamoto Masataka Uetani Takashi Kanematsu | 2007 | World Journal of Gastroenterology2007，13，3： | 7 |
| 5 | Immunological milieu in the peritoneal cavity at laparotomy for gastric cancer显示文摘AIM:To investigate the immunological repertoire in the peritoneal cavity of gastric cancer patients.METHODS:The peritoneal cavity is a compartment in which immunological host-tumor interactions can occur.However,the role of lymphocytes in the peritoneal cavity of gastric cancer patients is unclear.We observed 64 patients who underwent gastrectomy for gastric cancer and 11 patients who underwent laparoscopic cholecystectomy for gallstones and acted as controls.Lymphocytes isolated from both peripheral blood and peritoneal lavage were analyzed for surface markers of lymphocytes and their cytokine production by flow cytometry.CD4+CD25high T cells isolated from the patient's peripheral blood were co-cultivated for 4 d with the intra-peritoneal lymphocytes,and a cytokine assay was performed.RESULTS:At gastrectomy,CCR7 -CD45RA-CD8+ef-fector memory T cells were observed in the peritoneal cavity.The frequency of CD4+CD25 high T cells in both the peripheral blood and peritoneal cavity was elevated in patients at advanced stage[control vs stage Ⅳin the peripheral blood:6.89(3.39-10.4)vs 15.34(11.37-19.31),P<0.05,control vs stageⅣin the peritoneal cavity:8.65(5.28-12.0)vs 19.56(14.81-24.32),P<0.05].On the other hand,the suppression was restored with CD4+CD25high T cells from their own peripheral blood.This study is the first to analyze lymphocyte and cytokine production in the peritoneal cavity in patients with gastric cancer.Immune regulation at advanced stage is reversible at the point of gastrectomy.CONCLUSION:The immunological milieu in the peritoneal cavity of patients with advanced gastric cancer elicited a Th2 response even at gastrectomy,but this response was reversible. | Akira Yoneda Shinichiro Ito Seiya Susumu Mitsutoshi Matsuo Ken Taniguchi Yoshitsugu Tajima Susumu Eguchi Takashi Kanematsu Yasuhiro Nagata | 2012 | World Journal of Gastroenterology2012，18，13： | 5 |
| 6 | Comparison between sitagliptin and nateglinide on postprandial lipid levels: The STANDARD study显示文摘AIM: To assess the effects of sitagliptin and nateglinide on lipid metabolism. METHODS: In a parallel group comparative open trial, patients with type 2 diabetes mellitus under treatment at the Japanese Red Cross Medical Center were randomly assigned to receive either sitagliptin (50 mg once daily) or nateglinide (90 mg three times daily before meals). Eligible patients met the following criteria: age ≥ 20 years; hemoglobin A 1c (HbA 1c ) > 6.5% despite diet and exercise; HbA 1c between 6.5% and 8.0%; fasting glucose < 7.77 mmol/L; diet and exercise therapy for more than 3 mo; and ability to read and understand the information for written informed consent. Exclusion criteria were contraindications to sitagliptin, contraindications to nateglinide, pregnancy or possible pregnancy, and severe liver/renal failure. Patients who were considered to be unsuitable by the attending physician for other reasons were also excluded. Blood samples were collected at one and three hours after intake of a test meal. The primary outcome measure was the area under the curve (AUC) of apolipoprotein (Apo) B48 at three hours postprandially. RESULTS: Twenty patients were randomly assigned to the sitagliptin group and sixteen patients were randomized to the nateglinide group. All 36 patients took the medication as directed by the physician in both groups, and they all were analyzed. Apart from antidiabetic drugs, there was no difference between the two groups with respect to the frequency of combined use of lipid-lowering, antihypertensive, and/or antiplatelet drugs. The doses of these medications were maintained during 12 wk of treatment. Detailed dietary advice, together with adequate exercise therapy, was given to the patients so that other factors apart from the two test drugs were similar in the two groups. There were no significant differences of the baseline characteristics between the two groups, except for body mass index (the sitagliptin group: 25.14 ± 3.05 kg/m 2 ; the nateglinide group: 21.39 ± 2.24 kg/m 2 ). Fasting levels of HbA 1c , glycated albumin, 1.5-anhydroglucitol, and blood glucose, as well as the blood glucose levels at one and three hours postprandially, improved in both groups after 12 wk of treatment, and there were no significant differences between the two groups. However, the glucagon level at one hour postprandially (P = 0.040) and the diastolic blood pressure (P<0.01) only showed a significant decrease in the sitagliptin group. In the nateglinide group, there was no significant change in the AUC of Apo B48, the glucagon level at one hour postprandially, the fasting triglyceride level, or the diastolic blood pressure. Body weight was unchanged in both groups. However, the AUC of Apo B48 at three hours postprandially showed a significant decrease in the sitagliptin group from 2.48 ± 0.11 at baseline to 1.94 ± 0.78 g/L per hour after 12 wk (P=0.019). The fasting triglyceride level also decreased significantly in the sitagliptin group (P = 0.035). With regard to lipid-related markers other than Apo B48 and fasting triglycerides, no significant changes were observed with respect to Apo A1, Apo B, or Apo C3 in either group. No adverse events occurred in either group. CONCLUSION: Sitagliptin significantly improves some lipid parameters while having a comparable effect on blood glucose to nateglinide. A large-scale prospective study of sitagliptin therapy is warranted. | Yuichi Kojima Hideyoshi Kaga Shinu Hayashi Toru Kitazawa Yuko Iimura Makoto Ohno Michiyasu Yoshitsugu Mutsunori Fujiwara Toru Hiyoshi | 2013 | World Journal of Diabetes2013，4，1： | 5 |
| 7 | Description and Phylogenetic Position of Dinosaur Eggshells from the Luanchuan Area of Western Henan Province,China显示文摘这里,我们在西方的河南省省在 Luanchuan 区域的 Qiupa 形成(上面的白垩纪) 从一个新石块地区检验 145 恐龙蛋壳,中国。蛋壳显示 elongatoolithid 宏 -- 并且外部表面,二 ultrastructural 层和连续的层上的微观结构,包括的山脉和节点。系统发生的分析证明 Luanchuan 蛋壳属于 ooclade Elongatoolithidae。在 Elongatoolithidae,到全部蛋壳的 mammillary 层的厚度比率,和 Luanchuan 的孔以内,蛋壳比得上 oogenera Macroolithus 和 Elongatoolithus。为 Luanchuan 蛋壳的分类身份没有直接证据;然而,他们被 oviraptorids 多半与已知的 oviraptorid 鸡蛋基于他们的种系发生的位置和他们的类似生。 | Kohei TANAKA LU Junchang Yoshitsugu KOBAYASHI Darla K. ZELENITSKY XU Li JIA Songhai QIN Shuang TANG Min' an | 2011 | Acta Geologica Sinica(English Edition)2011，85，1： | 3 |
| 8 | Validation study of postoperative liver failure and mortality risk scores after liver resection for perihilar cholangiocarcinoma显示文摘Background:Surgery for perihilar cholangiocarcinoma(PHCC)remains a challenging procedure with high morbidity and mortality.The Academic Medical Center(Amsterdam UMC)and Memorial Sloan Kettering Cancer Center proposed a postoperative mortality risk score(POMRS)and post-hepatectomy liver failure score(PHLFS)to predict patient outcomes.This study aimed to validate the POMRS and PHLFS for PHCC patients at Hokkaido University.Methods:Medical records of 260 consecutive PHCC patients who had undergone major hepatectomy with extrahepatic bile duct resection without pancreaticoduodenectomy at Hokkaido University between March 2001 and November 2018 were evaluated to validate the PHLFS and POMRS.Results:The observed risks for PHLF were 13.7%,24.5%,and 39.8%for the low-risk,intermediate-risk,and high-risk groups,respectively,in the study cohort.A receiver-operator characteristic(ROC)analysis revealed that the PHLFS had moderate predictive value,with an analysis under the curve(AUC)value of 0.62.Mortality rates based on the POMRS were 1.7%,5%,and 5.1%for the low-risk,intermediate-risk,and high-risk groups,respectively.The ROC analysis demonstrated an AUC value of 0.58.Conclusions:This external validation study showed that for PHLFS the threshold for discrimination in an Eastern cohort was reached(AUC>0.6),but it would require optimization of the model before use in clinical practice is acceptable.The POMRS were not applicable in the eastern cohort.Further external validation is recommended. | Takehiro Noji Satoko Uemura Jimme KWiggers Kimitaka Tanaka Yoshitsugu Nakanishi Toshimichi Asano Toru Nakamura Takahiro Tsuchikawa Keisuke Okamura Pim BOlthof William RJarnagin Thomas Mvan Gulik Satoshi Hirano | 2022 | Hepatobiliary Surgery and Nutrition2022，11，3： | 2 |
| 9 | SEM Observation of the Wing Membrane of Beipiaopterus chenianus (Pterosauria)显示文摘The cross-section and surface structures of wing membranes from the ctenochasmatid pterosaur Beipiaopterus chenianus were observed through a scanning electron microscope (SEM). The results show that the wing membrane contains a high density of blood vessels, implying strong thermoregulatory function, similar to that of a bat wing membrane. This is the first comparison of the microstructures of pterosaur wing membranes with those of the modern bat. It is inferred that a bat-like physiology exists, at least in relatively small pterosaurs suggesting that these pterosaurs were warm-blooded, active fliers. | LU Junchang KOBAYASHI Yoshitsugu YUAN Chongxi JI Shu'an JI Qiang | 2005 | Acta Geologica Sinica(English Edition)2005，79，6： | 2 |
| 10 | J Alloy Compd显示文摘 | Yoshitsugu Kojima | 2008 | 462:2752008，462，： | 1 |
| 11 | Intact fibroblast growth factor 23 levels predict incident cardiovascular event before but not after the start of dialysis显示文摘 | Chikako Nakano Takayuki Hamano Naohiko Fujii Yoshitsugu Obi Isao Matsui Kodo Tomida Satoshi Mikami Kazunori Inoue Akihiro Shimomura Yasuyuki Nagasawa Noriyuki Okada Yoshiharu Tsubakihara Hiromi Rakugi Yoshitaka Isaka | 2012 | Bone2012，，6： | 1 |
| 12 | Attenuating effect of arecoline and physostigmine on an impairment of mealtime- associated activity rhythm in old rats显示文摘 | MICHIKO O YOSHITSUGU M SHIGENOBU S | 1995 | Physiology and Behavior1995，57，1： | 1 |
| 13 | Backcast analysis for realizing sustainable urban form in Nagoya显示文摘 | Yasuo Tomita Daisuke Terashima Amin Hammad and Yoshitsugu Hayashi | 2003 | Built Environment2003，29，1： | 1 |
| 14 | Second harmonic generation from thermally poled CdS microcrystal-containing glasses 显示文摘 | Yoshitsugu Yamanoto Hiroyuki Nasu Tadanori Hashimoto | 2001 | J NonCryst Solids2001，281，： | 1 |
| 15 | Interaction of Nylon 6 - Clay Surface and Mechanical Properties of Nylon 6- Clay Hybrid显示文摘 | Arimistu U Akihiko K Yoshitsugu K | 1995 | J Appl Polym Sci1995，，55： | 1 |
| 16 | Fine mapping of an isodieentric Y chromosomal breakpoint from a schizophrenic patient显示文摘 | Yoshitsugu K Meerabux JM Asai K | 2001 | Am J Med Genet B Neuropsychiatr Genet2001，116，1： | 1 |
| 17 | Fast etching of silicon with a smooth surface in high temperature ranges near the boiling point of KOH solution显示文摘 | Tanaka Hiroshi Yamashita Shuichi Abe Yoshitsugu | 2004 | Sensors and Actuators A: Physical2004，114，23： | 1 |
| 18 | Phylogenetic analysis of the genes Chlamydia based on 16s RNA gene sequence 显示文摘 | Pudjiatmoko Hideto F Yoshitsugu O | 1997 | International Journal of Systematic Bacteriology1997，47，： | 1 |
| 19 | Hybrid Cryogenic Refrigerator: Combination of Brayton Magnet Cooling and Gifford-McMahon Gas Cooling System 显示文摘 | Yayama H Yoshiro H Yoshitsugu M | 2000 | Japanese Journal of Applied Physics2000，39，： | 1 |
| 20 | Risk analysis of a pay to delay capacity reservation contract显示文摘 | Jun Wu Wuyi Yue Yoshitsugu Yamamoto Shouyang Wang | 2006 | Optimization Methods and Software2006，，： | 1 |
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