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1Pancreatic 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 2007World Journal of Gastroenterology2007,13,6:28
2Helicobacter pylori-associated immune thrombocytopenia:Clinical features and pathogenic mechanisms显示文摘Immune thrombocytopenia(ITP)is an autoimmune disease mediated by anti-platelet autoantibodies.There is growing evidence that the eradication of Helicobacter pylori(H.pylori)effectively increases platelet count in a considerable proportion of ITP patients infected with this bacterium.In the majority of ITP patients responding to H.pylori eradication therapy,the anti-platelet autoantibody response is completely resolved with no relapse for more than 7 years,indicating that the disease is cured.Therefore,adult patients with suspected ITP should be examined for H.pylori infection,and eradication therapy is recommended if the infection is present.Notably,however,the efficacy of H.pylori eradication therapy in ITP patients varies widely among countries,with a higher response rate in Japan compared with the United States and European countries other than Italy.The pathogenesis of H.pylori-associated ITP is still uncertain,although the mechanisms are known to involve multiple factors.H.pylori may modulate the Fcγ-receptor balance of monocytes/macrophages in favor of activating Fcγreceptors,and H.pylori components may mimic the molecular makeup of platelet antigens.Further studies of the pathogenic process of H.pyloriassociated ITP may be useful for the development of new therapeutic strategies for ITP.Masataka Kuwana 2014World Journal of Gastroenterology2014,20,3:19
3Blood glucose control in patients with severe sepsis and septic shock显示文摘The main pathophysiological feature of sepsis is the uncontrollable activation of both pro-and anti-inflammatory responses arising from the overwhelming pro-duction of mediators such as pro-and anti-inflammatory cytokines. Such an uncontrollable inflammatory response would cause many kinds of metabolic derangements. One such metabolic derangement is hyperglycemia. Accordingly, control of hyperglycemia in sepsis is considered to be a very effective therapeutic approach. However, despite the initial enthusiasm, recent studies reported that tight glycemic control with intensive insulin therapy failed to show a beneficial effect on mortality of patients with severe sepsis and septic shock. One of the main reasons for this disappointing result is the incidence of harmful hypoglycemia during intensive insulin therapy. Therefore, avoidance of hypoglycemia during intensive insulin therapy may be a key issue in effective tight glycemic control. It is generally accepted that glycemic control aimed at a blood glucose level of 80-100 mg/dL, as initially proposed by van den Berghe, seems to be too tight and that such a level of tight glycemic control puts septic patients at increased risk of hypoglycemia. Therefore, now many researchers suggest less strict glycemic control with a target blood glucose level of 140-180 mg/dL. Also specific targeting of glycemic control in diabetic patients should be considered. Since there is a significantcorrelation between success rate of glycemic control and the degree of hypercytokinemia in septic patients, some countermeasures to hypercytokinemia may be an important aspect of successful glycemic control. Thus, in future, use of an artificial pancreas to avoid hypoglycemia during insulin therapy, special consideration of septic diabetic patients, and control of hypercytokinemia should be considered for more effective glycemic control in patients with severe sepsis and septic shock.Hiroyuki Hirasawa Shigeto Oda Masataka Nakamura 2009World Journal of Gastroenterology2009,15,33:13
4皮肌炎/临床无肌病性皮肌炎患者血清中CADM-140抗体的检测和临床意义显示文摘目的对皮肌炎(DM)/临床无肌病性皮肌炎(CADM)患者进行CADM-140抗体检测,探讨CADM-140抗体与临床特征间的联系。方法采集38例DM(22例)/CADM(16例)患者血清,另外采集46例伴有肺间质病变的其他结缔组织病患者血清,包括8例多发性肌炎、15例系统性红斑狼疮、5例系统性硬化病、6例干燥综合征、6例混合性结缔组织病、6例特发性肺纤维化和5例正常对照者。以重组黑素瘤分化相关基因5(rMDA-5)为底物,通过ELISA检测患者血清中CADM-140抗体,比较CADM-140抗体阳性与阴性患者的临床特征。结果①16例CADM和22例DM患者血清CADM-140抗体阳性例数分别为7例和2例,CADM患者阳性率(43.8%)显著高于DM(9.1%)(P〈0.05),46例伴有肺问质病变的其他结缔组织病患者及5例正常人均阴性;②CADM-140抗体阳性患者皮肤溃疡和坏死的发生率为8/9,红细胞沉降率为(40.8±23.1)mm/1h,CADM-140抗体阴性组分别为6.9%和(22.5±16.8)mm/1h,两组比较,P〈0.01和〈0.05;CADM-140抗体阳性患者乳酸脱氢酶水平显著高于阴性组(分别为328.3±104.2和241.1±100.3IU/L,P〈0.05),而肌酸激酶显著低于阴性组(分别为156.3±260.8和1806.2±3737.1IU/L,P〈0.05);两组问抗核抗体阳性率和恶性肿瘤发生率的差异无统计学意义;③CADM-140抗体阳性患者不仅肺间质病变发生率显著高于阴性组(分别为9/9和48.3%,P〈0.01),而且急进型肺间质病变发生率也显著高于阴性组(分别为5/9和0,P〈0.05)。阳性组肺高分辨率CT评分(122.9±54.8)显著高于阴性组(70.0-4-59.8)(P〈0.05)。结论通过检测CADM-140抗体不仅可以判断DM/CADM是否合并肺间质病变,还可能是伴发急进型肺问质病变的血清学标记,动态观察血清CADM-140抗体水平也许有助于预测肺间质病变病程。曹华 李霞 亢延卿 施若非 周敏 Masataka Kuwana 丁晓毅 郑捷 2011中华皮肤科杂志2011,44,7:10
5Prognostic value of postoperative complication for early recurrence after curative resection of hepatocellular carcinoma显示文摘Background: Postoperative complications may adversely affect oncological outcomes. The aim of this study was to evaluate the impact of postoperative complications on early-phase recurrence after curative resection for hepatocellular carcinoma(HCC).Methods: We included 145 HCC patients who underwent initial and curative resection between January2004 and December 2013. Postoperative complications of grade III or higher based on Clavien–Dindo classification were defined as clinically relevant postoperative complications. Recurrence within two years after hepatectomy was defined as early-phase recurrence.Results: Thirty-eight patients(26%) developed postoperative complications. The only predictive factor for postoperative complication was longer operative duration(P = 0.037). The disease-specific survival rate of patients with complication was lower than that of patients without complications(P = 0.015). Earlyphase recurrence was observed in 20/38(53%) patients who suffered postoperative complications and36/107(34%) patients with no complications, which was statistically significant(P = 0.039). Multivariate analysis identified four factors contributing to early-phase recurrence: high serum AFP level(P = 0.042),multiple tumors(P < 0.001), poor differentiation(P = 0.036) and presence of postoperative complication(P = 0.039).Conclusions: Postoperative complication is an independent prognostic factor for early-phase recurrence after curative resection of HCC. Close observation of patients with postoperative complications may be a necessary treatment strategy for HCC.Masataka Amisaki Hiroaki Saito Naruo Tokuyasu Teruhisa Sakamoto Soichiro Honjo Yoshiyuki Fujiwara 2018Hepatobiliary & Pancreatic Diseases International2018,17,4:10
6Effects of Chinese herbs on salivary fluid secretion by isolated and perfused rat submandibular glands显示文摘AIM:To determine whether Chinese herbs (CHs) relieve xerostomia (dry mouth) by increasing salivary secretion.METHODS: The submandibular glands of Wistar rats were surgically isolated and perfused arterially with buffered salt solution. After control perfusion, recording started 5 min prior to the start of stimulation. After fluid secretion was induced by 0.2 μmol/L carbamylcholine (CCh) in the perfusate for 10 min, Chinese herb (CH) was added in the perfusion for 5 min. CCh was then overloaded at 0.2 μmol/L in the perfusion for 20 min. The volume of salivary fluid secretion was recorded by a computer-controlled balance system.RESULTS: Saliva secretion formed an initial ephemeral peak at 30 s followed by a gradual increase to a sustained level. CH alone induced no or little saliva in all types of CH selected. During perfusion with CH,overloading of CCh promoted fluid secretion in 15 of 20 CHs. This promotion was classified into four patterns, which were eventually related to the categories of CH: Overall sustained phase was continuously raised (Yin-nourishing, fluid production-promoting and heat-clearing agents); The sustained secretion rose to reach a maximum then decreased (Qi-enhancing agent); Sustained secretion rose to reach the highest maximum and was then sustained with a slight decline (swelling-reducing, phlegm-resolving and pus-expelling agents); Stimulation of salivary secretion without any added stimulants. Addition of CCh raised the fluid secretion to reach the highest maximum then sharply decreased to a lower sustained level (blood activating agent).CONCLUSION: The present findings lead to the conclusion that various CHs have different promotional effects directly on the salivary gland.Masataka Murakami Mu-Xin Wei Wei Ding Qian-De Zhang 2009World Journal of Gastroenterology2009,15,31:9
7Benefits of nucleos(t)ide analog treatments for hepatitis B virus-related cirrhosis显示文摘Chronic hepatitis B infection induces progressive liver disease. Before nucleos(t)ide analogs(NUCs) became established as a safe and effective treatment for hepatitis B,it was difficult to suppress the activity of the hepatitis B virus(HBV). Currently,many patients withhepatitis or cirrhosis associated with HBV are treated with NUCs for an extended period of time,and the effects,benefits,and limitations of these treatments have been apparent. This article reviews HBV-related cirrhosis,its natural course and survival,histological improvement after NUC treatments,treatment effects for decompensated cirrhosis,the incidence of hepatocellular carcinoma(HCC) after NUC treatments,and the efficacy of NUC treatments before and after the treatment of patients for HBV-related HCC. Of particular interest are the histological improvements,including regression of fibrosis,that have been achieved with NUC treatments. Liver function of patients with decompensated cirrhosis has significantly improved regardless of the type of NUC applied,and treatment with NUCs has reduced the incidence of HCC in cirrhotic patients. However,cirrhosis remains the strongest risk factor for HCC occurrence following NUC treatments,and the long-term cumulative incidence of HCC after NUC treatments remains high. When recurrence does occur,it is important to reconsider the treatment modality according to the degree of improved liver function that was achieved.Koichi Honda Masataka Seike Kazunari Murakami 2015World Journal of Hepatology2015,7,22:9
8Cerebral lipiodol embolism related to a vascular lake during chemoembolization in hepatocellular carcinoma:A case report and review of the literature显示文摘A male patient underwent conventional transcatheter chemoembolization for advanced recurrent hepatocellular carcinoma(HCC). Even after the injection of 7 m L of lipiodol followed by gelatin sponge particles, the flow of feeding arteries did not slow down. A repeat angiography revealed a newly developed vascular lake draining into systemic veins; however, embolization was continued without taking noticing of the vascular lake. The patient's level of consciousness deteriorated immediately after the procedure, and non-contrast computed tomography revealed pulmonary and cerebral lipiodol embolisms. The patient's level of consciousness gradually improved after 8 wk in intensive care. In this case, a vascular lake emerged during chemoembolization and drained into systemic veins, offering a pathway carrying lipiodol to pulmonary vessels, the most likely cause of this serious complication. We should be aware that vascular lakes in HCC may drain into systemic veins and can cause intratumoral arteriovenous shunts.Hideki Ishimaru Minoru Morikawa Takayuki Sakugawa Ichiro Sakamoto Yasuhide Motoyoshi Yohei Ikebe Masataka Uetani 2018World Journal of Gastroenterology2018,24,37:9
9Post-operative albumin-bilirubin grade predicts long-term outcomes among Child–Pugh grade A patients with hepatocellular carcinoma after curative resection显示文摘Background: Although Child–Pugh grade A patients with hepatocellular carcinoma(HCC) are candidates for curative resection, some may have a poor prognosis. The albumin-bilirubin(ALBI) grade, a measure of liver function based on albumin and bilirubin, has the potential to detect Child–Pugh grade A HCC patients with poor prognosis. Because components of the ALBI grade can be measured easily even after surgery, we explored the predictive values of ALBI in patient prognosis after HCC resection. Methods: In this retrospective case-control study, we included 136 HCC patients who underwent curative resection between January 2004 and December 2013 at our hospital. ALBI grade was calculated from laboratory data recorded the day before surgery and at post-operative day 5. Results: Pre-and post-operative ALBI grade predicted patients' long-term outcomes( P = 0.020 and P < 0.001, respectively, for overall survival, and P = 0.012 and P = 0.015, respectively, for recurrence-free survival). Post-operative ALBI grade was associated with patients' surgical factors of repeated hepatic resection( P = 0.012), intra-operative bleeding( P = 0.006), and surgery duration( P = 0.033). Furthermore, post-operative ALBI grade, rather than pre-operative ALBI grade, was an independent predictive factor of long-term outcome of Child–Pugh grade A patients with HCC. Conclusions: Post-operative ALBI grade is useful to predict the prognosis in patients after HCC resection.Masataka Amisaki Ei Uchinaka Masaki Morimoto Naruo Tokuyasu Teruhisa Sakamoto Soichiro Honjo Hiroaki Saito Yoshiyuki Fujiwara 2018Hepatobiliary & Pancreatic Diseases International2018,17,6:9
10Mechanism involved in Danshen-induced fluid secretion in salivary glands显示文摘AIM:Danshen's capability to induce salivary fluid secretion and its mechanisms were studied to determine if it could improve xerostomia.METHODS:Submandibular glands were isolated from male Wistar rats under systemic anesthesia with pentobarbital sodium.The artery was cannulated and vascularly perfused at a constant rate.The excretory duct was also cannulated and the secreted saliva was weighed in a cup on an electronic balance.The weight of the accumulated saliva was measured every 3 s and the salivary flow rate was calculated.In addition,the arterio-venous difference in the partial oxygen pressure was measured as an indicator of oxygen consumption.In order to assess the mechanism involved in Dansheninduced fluid secretion,either ouabain(an inhibitor of Na+/K+ ATPase) or bumetanide(an inhibitor of NKCC1) was additionally applied during the Danshen stimulation.In order to examine the involvement of the main membrane receptors,atropine was added to block the M3 muscarinic receptors,or phentolamine was added to block the α1 adrenergic receptors.In order to examine the requirement for extracellular Ca2+,Danshen was applied during the perfusion with nominal Ca2+ free solution.RESULTS:Although Danshen induced salivary fluid secretion,88.7 ± 12.8 μL/g-min,n = 9,(the highest value around 20 min from start of DS perfusion was significantly high vs 32.5 ± 5.3 μL/g-min by carbamylcholine,P = 0.00093 by t-test) in the submandibular glands,the time course of that secretion differed from that induced by carbamylcholine.There was a latency associated with the fluid secretion induced by Danshen,followed by a gradual increasein the secretion to its highest value,which was in turn followed by a slow decline to a near zero level.The application of either ouabain or bumetanide inhibited the fluid secretion by 85% or 93%,and suppressed the oxygen consumption by 49% or 66%,respectively.These results indicated that Danshen activates Na+/K+ ATPase and NKCC1 to maintain Cl- release and K+ release for fluid secretion.Neither atropine or phentolamine inhibited the fluid secretion induced by Danshen(263% ± 63% vs 309% ± 45%,227% ± 63% vs 309% ± 45%,P = 0.899,0.626 > 0.05 respectively,by ANOVA).Accordingly,Danshen does not bind with M3 or α1 receptors.These characteristics suggested that the mechanism involved in DS-induced salivary fluid secretion could be different from that induced by carbamylcholine.Carbamylcholine activates the M3 receptor to release inositol trisphosphate(IP3) and quickly releases Ca2+ from the calcium stores.The elevation of [Ca2+]i induces chloride release and quick osmosis,resulting in an onset of fluid secretion.An increase in [Ca2+]i is essential for the activation of the luminal Cl- and basolateral K+ channels.The nominal removal of extracellular Ca2+ totally abolished the fluid secretion induced by Danshen(1.8 ± 0.8 μL/g-min vs 101.9 ± 17.2 μL/g-min,P = 0.00023 < 0.01,by t-test),suggesting the involvement of Ca2+ in the activation of these channels.Therefore,IP3-store Ca2+ release signalling may not be involved in the secretion induced by Danshen,but rather,there may be a distinct signalling process.CONCLUSION:The present findings suggest that Danshen can be used in the treatment of xerostomia,to avoid the systemic side effects associated with muscarinic drugs.Fei Wei Mu-Xin Wei Masataka Murakami 2015World Journal of Gastroenterology2015,21,5:9
11Effects of adacolumn selective leukocytapheresis on plasma cytokines during active disease in patients with active ulcerative colitis显示文摘瞄准:调查在临床的活动索引的 ulcerative (UC )( 蔡) 和 IL-1ra, IL-10, IL-6 和 IL-18 的传播层次之间的关系。方法:IL-1ra, IL-10, IL-6 和 IL-18 的血层次与活跃 UC 在 31 个病人被测量,吝啬的蔡是 11.1,从 5-25 ;并且是的 12 个健康个人控制。病人们与 Adacolumn 被给粒细胞和单核白血球 adsorptive 词首字母的脱落(GMA ) 。忍受 FcgammaR 并且补充受体的白细胞被吸附到列 leucocytapheresis 搬运人。每个病人能在 8 wk 上收到多达 11 个 GMA 会议。结果:我们发现了在蔡和 IL-10 之间的强壮的关联(r = 0.827, P < 0.001 ) , IL-6 (r = 0.785, P < 0.001 ) 并且 IL-18 (r = 0.791, P < 0.001 ) 。IL-1ra 没与蔡一起被相关。后面的 GMA 治疗, 31 个病人中的 24 个完成了宽恕,所有 4 cytokines 的层次掉在健康控制里到层次。进一步, IL-1ra 和 IL-10 的血层次在从遵守了搬运人的白细胞建议版本的 60 min 在列流出和流入增加了。Hiroyuki Hanai Takayuki Iida Masami Yamada Yoshihiko Sato Ken Takeuchi Tatsuo Tanaka Kenji Kondo Masataka Kikuyama Yasuhiko Maruyama Yasushi Iwaoka Akiko Nakamura Kazuhisa Hirayama Abby R Saniabadi Fumitoshi Watanabe 2006World Journal of Gastroenterology2006,12,21:8
12Phase Ⅱ study of protracted irinotecan infusion and a low-dose cisplatin for metastatic gastric cancer显示文摘AIM: To test protracted irinotecan infusion plus a low-dose cisplatin in this Phase Ⅱ trial to decrease its toxic-ity. METHODS: The eligibility criteria were: (1) histologi-cally proven measurable gastric cancer; (2) performance status of 0 or 1; (3) no prior chemotherapy or comple-tion of prior therapy at least 4 wk before enrollment; (4) adequate function of major organs; (5) no other active malignancy; and (6) written informed consent. The regi-men consisted of irinotecan (60 mg/m2) on d 1 and 15 by 24-h infusion and cisplatin (10 mg/m2) on d 1, 2, 3, 15, 16, and 17. Treatment was repeated every 4 wk. RESULTS: Thirty-one patients were registered between April 2000 and January 2001. The response rate for all 31 patients, 20 patients without prior chemotherapy, and 11 patients with prior chemotherapy was 52% (16/31), 60% (12/20), and 36% (4/11), respectively. The median survival time was 378 d. The median number of courses given to all patients was 2. Grade 4 neutropenia oc-curred in 11 (35%) patients, while grade 3 to 4 diarrhea or nausea occurred in 1 (3%) and 3 (10%) patients, respectively. Fatigue was minimal as grade 1 fatigue was found only in 3 (10%) patients. Other adverse events were mild and no treatment-related deaths occurred.CONCLUSION: This regimen showed a high level of ac-tivity and acceptable toxicity in patients with metastatic gastric cancer.Hiroshi Imamura Masataka Ikeda Hiroshi Furukawa Toshimasa Tsujinaka Kazumasa Fujitani Kenji Kobayashi Hiroyuki Narahara Michio Kato Haruhiko Imamoto Arimichi Takabayashi Hideaki Tsukuma 2006World Journal of Gastroenterology2006,12,40:7
13Decrease of reactive-oxygen-producing granulocytes and release of IL-10 into the peripheral blood following leukocytapheresis in patients with active ulcerative colitis显示文摘AIM: To investigate the clinical efficacy of leukocytapheresis (LCAP) in patients with active ulcerative colitis (UC), and to elucidate the mechanisms by determining the changes in the cytokine levels in the peripheral blood and of the functions of the peripheral blood leukocytes in these patients.METHODS: The subjects were 19 patients with active UC, with a mean clinical activity index (CAI) of 9.2. The LCAP was conducted using Cellsorba E. In each session of LCAP, 2-3 L of blood at the flow rate of 30-50 mL/min was processed. The treatment was carried out in approximately 1-h sessions, once a week, for 5-10 wk. Blood samples for determination of the cytokine levels were collected from the inflow side of the column (site of dehematization; at the start of LCAP) and outflow side of the column (at the end of LCAP). Blood samples for the determination of reactive-oxygen-producing cells were collected from the peripheral blood before and after LCAP.RESULTS: LCAP resulted in clinical improvement in all the 19 patients of UC recruited for this study. Remission (CAI: ≤4) was noted in 15 (79%) of the 19 patients. The blood level of the pro-inflammatory cytoline IL-6 was found to be decreased following treatment by LCAP, and the level of the anti-inflammatory cytokine IL-10 at the outflow side of the LCAP column was found to be significantly elevated as compared to that at the inflow side of the column. The reactive-oxygen-producing granulocytes in the peripheral blood of UC patients was increased as compared to that in healthy persons and the increase was found to be decreased following treatment by LCAP.CONCLUSION: LCAP exerted a high therapeutic efficacy in patients with active UC. Our findings suggest that LCAP is associated with enhanced production of the inhibitory cytokine IL-10 to indirectly inhibit the functions of the inflammatory leukocytes, and that inflammation is also considerably attenuated by the direct removal of reactiveoxygen-producing neutrophils from the peripheral blood.Hiroyuki Hanai Takayuki Iida Ken Takeuchi Fumitoshi Watanabe Yasuhiko Maruyama Masataka Kikuyama Tatsuo Tanaka Kenji Kondo Kou Tanaka Kenji Takai 2005World Journal of Gastroenterology2005,11,20:7
14Lamivudine treatment enabling right hepatectomy for hepatocellular carcinoma in decompensated cirrhosis显示文摘A 69-year-old man was admitted to our hospital in October 2003,for further examination of two liver tumors.He was diagnosed with hepatocellular carcinoma(HCC) arising from decompensated hepatitis B virus(HBV)-related cirrhosis.Long-term lamivudine administration improved liver function dramatically despite repeated treatment for HCC.His Child-Pugh score was 9 points at start of lamivudine treatment,improving to 5 points after 1 year.His indocyanine green at 15 min after injection test score was 48%before lamivudine treat-ment,improving to 22%after 2 years and to 5%after 4 years.Radiofrequency ablation controlled the HCC foci and maintained his liver function.In April 2009,abdominal computed tomography revealed a tumor thrombus in the right portal vein.Since his indocyanine green test results had improved to less than 10%,we performed a right hepatectomy,which was successful.To our knowledge,there have been no documented reports of patients undergoing successful right hepatectomy for HCC arising from decompensated cirrhosis.The findings observed in our patient indicate the importance of nucleoside analogs for treating HBV-related HCC.Koichi Honda Masataka Seike Shin-ichiro Maehara Koichiro Tahara Hideaki Anai Akira Moriuchi Toyokichi Muro 2012World Journal of Gastroenterology2012,18,20:7
15Extrahepatic 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 2007World Journal of Gastroenterology2007,13,3:7
16金龙胶囊对胃癌细胞MGC-803和BGC-823侵袭转移能力的影响显示文摘目的:探讨金龙胶囊对人胃癌MGC-803,BGC-823细胞侵袭和迁移能力的影响并对其具体机制进行探讨。方法:体外培养胃癌MGC-803,BGC-823细胞,分为金龙胶囊组(0.1,0.2,0.4,0.8 g·L-1),空白组和5-氟尿嘧啶(5-FU)组,采用噻唑蓝(MTT)比色法分别检测金龙胶囊对MGC-803,BGC-823细胞增殖的抑制作用,计算半数抑制率(IC50);采用细胞侵袭(transwell)小室法和划痕实验检测金龙胶囊处理MGC-803和BGC-823细胞24 h后,细胞侵袭和迁移能力发生改变;蛋白免疫印迹法(Western blot)检测金龙胶囊处理MGC-803,BGC-823细胞24 h后E-钙黏素(E-cadherin),基质金属蛋白酶-2(MMP-2)和基质金属蛋白酶-9(MMP-9)蛋白表达情况。结果:金龙胶囊能明显抑制MGC-803,BGC-823细胞的增殖,呈一定的浓度及时间依赖性;与空白组比较,金龙胶囊能明细减少MGC-803,BGC-823细胞的穿膜细胞数目,可明显影响2种胃癌细胞的侵袭与迁移能力,并呈明显浓度依赖性(P〈0.05);金龙胶囊组的划痕距离较空白组明显降低,影响MGC-803,BGC-823细胞迁移,并呈浓度依赖性(P〈0.05);与空白组比较,金龙胶囊组能够提高MGC-803和BGC-823细胞中E-cadherin蛋白表达,降低MMP-2,MMP-9蛋白表达水平,且呈一定的量效关系(P〈0.05)。结论:金龙胶囊能够抑制人胃癌MGC-803,BGC-823细胞的侵袭和迁移能力,其作用机制可能与上调E-cadherin表达,抑制MMP-2,MMP-9表达水平有关。本研究证实了金龙胶囊对胃癌MGC-803,BGC-823细胞抗侵袭转移的部分机制。李丹 金凤 陶丽 倪腾洋 王海波 冯俊 朱光 钱亚云 丁岩冰 Masataka Sunagawa 刘延庆 2018中国实验方剂学杂志2018,24,19:7
17Carcinosarcoma of the liver with mesenchymal differentiation显示文摘We report an extremely rare case where a mesenchymal differentiation, especially embryonal sarcoma, was demonstrated in cholangiocarcinoma. At autopsy, a yellowish-white tumor (15 cm x 12 cm) was found in the right hepatic lobe, and there were several daughter nodules in both hepatic lobes. Histologically, most of the main tumor and all of the daughter nodules examined showed sarcomatous changes (spindle cells, pleomorphic cells and hyalization). Histologic examination of a part of the main tumor disclosed a focus of adenocarcinoma within the tumor. The frequent transitions between the adenocarcinomatous areas and the sarcomatous areas suggested that sarcomatous transformation occurred in the cholangiocarcinoma and then spread rapidly. Immunohistochemically, the adenocarcinomatous elements were positive for cytokeratin, carcinoembryonic antigen (CEA) and epithelial membrane antigen, and negative in the sarcomatous cells. Vimentin was positive only in the sarcomatous elements. The findings of the present case support the view that carcinosarcomas represent carcinomas that develop sarcomatous elements via metaplasia of the epithelial element.Shinichi Sumiyoshi Masataka Kikuyama Yuji Matsubayashi Fujito Kageyama Yoshihiro Ide Yoshimasa Kobayashi Hirotoshi Nakamura 2007World Journal of Gastroenterology2007,13,5:6
18Transnasal endoscopic retrograde chalangiopancreatography using an ultrathin endoscope: A prospective comparison with a routine oral procedure显示文摘AIM: To investigate if transnasal endoscopic retrograde cholangiopancreatography (n-ERCP) using an ultrathin forward-viewing scope may overcome the disadvantages of conventional oral ERCP (o-ERCP) related to the large- caliber side-viewing duodenoscope. METHODS: The study involved 50 patients in whom 25 cases each were assigned to the o-ERCP and n-ERCP groups. We compared the requirements of esophagogastroduodenoscopy (EGD) prior to ERCP, rates and times required for successful cannulation into the pancreatobiliary ducts, incidence of post-procedure hyperamylasemia, cardiovascular parameters during the procedure, the dose of a sedative drug, and successful rates of endoscopic naso-biliary drainage (ENBD). RESULTS: Screening gastrointestinal observations were easily performed by the forward-viewing scope and thus no prior EGD was required in the n-ERCP group. There was no significant difference in the rates or times for cannulation, or incidence of hyperamylasemia between the groups. However, the cannulation was relatively difficult in n-ERCP when the scope appeared U-shape under fluoroscopy. Increments of blood pressure and the amount of a sedative drug were significantly lower in the n-ERCP group. ENBD was successfully performed succeeding to the n-ERCP in which mouth-to-nose transfer of the drainage tube was not required. CONCLUSION: n-ERCP is likely a well-tolerable methodwith less cardiovascular stress and no need of prior EGD or mouth-to-nose transfer of the ENBD tube. However, a deliberate application is needed since its performance is difficult in some cases and is not feasible for some endoscopic treatments such as stenting.Akihiro Mori Noritsugu Ohashi Takako Maruyama Hideharu Tatebe Katsuhisa Sakai Takashi Shibuya Hiroshi Inoue Shoudou Takegoshi Masataka Okuno 2008World Journal of Gastroenterology2008,14,10:6
19New 14-mm diameter Niti-S biliary uncovered metal stent for unresectable distal biliary malignant obstruction显示文摘AIM To investigate whether an uncovered self-expandable metal stent(UCSEMS) with a large diameter could prevent recurrent biliary obstruction(RBO).METHODS Thirty-eight patients with malignant biliary obstruction underwent treatment with an UCSEMS with a 14-mm diameter(Niti-S 14). Retrospectively, we evaluated technical and functional success rate, RBO rate, time to RBO, survival time, and adverse events in these patients.RESULTS Stent placement success and functional success were achieved in all patients. Two patients(5.3%) had RBO due to tumor ingrowth or overgrowth. The median time to RBO was 190(range, 164-215) d. The median survival time was 120(range, 18-502) d. The 6-mo non-RBO rate was 91%. Other adverse events other than RBO occurred as follows: Acute cholecystitis, post-ERCP pancreatitis, hemobilia, and fever without exacerbation of liver injury, and liver abscess in 4(10.3%), 3(7.9%), 2(5.3%), 1(2.6%), and 1(2.6%), respectively. Migration of the stents was not observed.CONCLUSION Niti-S 14 is considered to be a preferable metal stent because of a low rate of RBO with no migration.Masataka Kikuyama Naofumi Shirane Shinya Kawaguchi Shuzou Terada Tsuyoshi Mukai Ken Sugimoto 2018World Journal of Gastrointestinal Endoscopy2018,10,1:5
20采用Dytran软件进行轮胎水滑特性研究显示文摘Toshihiko Okano Masataka Koishi 高明 梁洪军 丁海峰(摘译) 冯希金(校) 2007轮胎工业2007,27,5:5
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