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Effects of alginate and laminaran on the microbiota and antioxidant properties of human faecal cultures

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Food Bioscience 2022年第3期47卷 1244-1251页

作者： Gayang Lee mika Harada Yuko Midorikawa Mahiro Yamamoto Ayaka nakamura Hajime Takahashi Takashi Kuda Department of Food Science and Technology Tokyo University of Marine Science and Technology4-5-7 KonanMinato-kuTokyo108-8477Japan

Alginate and laminaran are water soluble dietary fibres in brown *** a previous study,pure cultures of Bacteroides xylanisolvens,Bacteroides uniformis,and Erysipelaclostridium ramosum increased antioxidant capacities in the broth with alginate and/or laminaran *** study was conducted to evaluate the presence of the alginate-and laminaran-responsive human gut indigenous bacteria(RIB)and their ***,human stool samples were cultured in media without(control),or with 1%(w/v)alginate or laminaran at 37℃ for 24 h under anaerobic *** showed that during incubation,the pH of the culture reduced with the *** production was clearly suppressed via laminaran supplementation in the faecal sample *** 16S rRNA(V4)gene amplicon sequencing confirmed that ***-,*** and ***-like bacteria were alginate-and/or laminaran-RIB in human gut,although their read numbers differed among ***,some butyrate-producers,such as Faecalibacterium and Roseburia,were also detected as the RIB in alginate and laminaran cultures,*** increased 1,1-diphenyl-2-picrylhydrazyl and superoxide anion radical-scavenging capacities and the Fe-reducing power of the culture ***,the fermented cultures increased the nitric oxide secretion in macrophage like RAW 264.7 cells *** results suggest that the interaction of alginate and laminaran with their RIB may have desirable effects on the host as next generation prebiotics when brown algae are ingested.

关键词： Alginate Laminaran Human gut microbiota Antioxidant capacity Faecal culture

Influence of night duty on endoscopic therapy for bile duct stones

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World Journal of Gastroenterology 2016年第42期22卷 9387-9393页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki Konno Hiroyuki Asama Ko Watanabe Jun nakamura Hitomi Kikuchi Yuichi Waragai mika Takasumi Takuto Hikichi Hiromasa Ohira Department of Gastroenterology and Rheumatology Fukushima Medical University School of Medicine Department of Endoscopy Fukushima Medical University Hospital

AIM To examine the influence of night duty(ND) on endoscopic therapy for biliary duct *** The subjects consisted of 133 patients who received initial endoscopic therapy for biliary duct stones performed by eight endoscopists after they had been on(ND group, n = 34 patients) or not [day duty(DD) group, n = 99 patients]. Patient characteristics(age, gender, history of abdominal surgery, transverse diameter of the largest stone, number of stones), years of experience of the endoscopists, endoscopic procedures [sphincterotomy, papillary balloon dilation(EPBD), papillary large balloon dilation(EPLBD)], and outcomes of initial endoscopy(procedure time; rate of stone removal by the first endoscopist; proceduresuccess rate by the first endoscopist: removal of stones or endoscopic retrograde biliary drainage; rate of final stone removal; final procedure success rate; complications; hospitalization after the procedure) were compared retrospectively between the two groups. History of abdominal surgery and treatment outcomes were also compared between the groups for each of the four endoscopists who performed most of the procedures in the ND *** There were no significant differences regarding the number of treatments performed by each endoscopist or the years of experience between the ND and DD groups. The frequency of endoscopic retrograde cholangiopancreatography procedures did not differ significantly between the groups. There were also no significant differences regarding patient characteristics: age, gender, history of abdominal surgery(ND 7: Billroth II 4, R-Y 3; DD 18: double tract reconstruction 1, Billroth I 3, Billroth II 6, R-Y 7, duodenoduodenostomy for annular pancreas 1), transverse diameter of largest stone, and number of stones between the two groups. Among the treatment procedures, the endoscopic s p h i n c t e r o t o m y a n d E P B D r a t e s d i d n o t d i f f e r significantly between the groups. However, EPLBD was performed more fr

关键词： Night duty Endoscopic therap Bile duct stone Removal of stones Procedure time

Current status and future perspectives for the treatment of resectable locally advanced esophagogastric junction cancer:A narrative review

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World Journal of Gastroenterology 2023年第24期29卷 3758-3769页

作者： Yoshiaki Shoji Kazuo Koyanagi Kohei Kanamori Kohei Tajima mika Ogimi Kentaro Yatabe Miho Yamamoto Akihito Kazuno Kazuhito Nabeshima Kenji nakamura Takayuki Nishi Masaki Mori Department of Gastroenterological Surgery Tokai University School of MedicineIsehara 259-1193Japan

Incidence rates for esophagogastric junction cancer are rising rapidly worldwide possibly due to the economic development and demographic ***,increased attention has been paid to the prevention,diagnosis,and the treatment of esophagogastric junction *** there are discrepancies in the treatment strategy between Asian and Western countries,surgery remains the mainstay of treatment for esophagogastric junction *** developments of perioperative multidisciplinary treatment may lead to better therapeutic effect,higher complete resection rate,and better control of the residual diseases,thus result in prolonged *** this review,we will focus on the treatment of locally advanced resectable esophagogastric junction cancer,and discuss the current status and future perspectives of the perioperative treatment including chemotherapy,radiation therapy,and immunotherapy,as well as the surgical *** understanding of the latest treatment strategy and future overlook may enable to standardize and individualize the treatment for esophagogastric junction cancer,thus leading to better prognosis for those patients.

关键词： Esophagogastric junction cancer Perioperative therapy Neoadjuvant therapy Surgery Multidisciplinary treatment

Predictive factors for the failure of endoscopic stent-instent self-expandable metallic stent placement to treat malignant hilar biliary obstruction

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World Journal of Gastroenterology 2017年第34期23卷 6273-6280页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki Konno Hiroyuki Asama Ko Watanabe Jun nakamura Hitomi Kikuchi Yuichi Waragai mika Takasumi Yuki Sato Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of Medicine Department of Endoscopy Fukushima Medical University Hospital

AIM To investigate the factors predictive of failure when placing a second biliary self-expandable metallic stents(SEMSs). METHODS This study evaluated 65 patients with an unresectable malignant hilar biliary obstruction who were examined in our hospital. Sixty-two of these patients were recruited to the study and divided into two groups: the success group, which consisted of patients in whom a stent-in-stent SEMS had been placed successfully, and the failure group, which consisted of patients in whom the stent-in-stent SEMS had not been placed successfully. We compared the characteristics of the patients, the stricture state of their biliary ducts, and the implemented endoscopic retrograde cholangiopancreatography(ERCP) procedures between the two *** The angle between the target biliary duct stricture and the first implanted SEMS was significantly larger in the failure group than in the success group. There were significantly fewer wire or dilation devices(ERCP catheter, dilator, or balloon catheter) passing the first SEMS cell in the failure group than in the success group. The cut-off value of the angle predicting stent-in-stent SEMS placement failure was 49.7 degrees according to the ROC curve(sensitivity 91.7%, specificity 61.2%). Furthermore, the angle was significantly smaller in patients with wire or dilation devices passing the first SEMS cell than in patients without wire or dilation devices passing the first SEMS cell. CONCLUSION A large angle was identified as a predictive factor for failure of stent-in-stent SEMS placement.

关键词： Endoscopic stent-in-stent self-expandable metallic stent placement Predictive factor Endoscopic retrograde cholangiopancreatography Malignant hilar biliary obstruction Self-expandable metallic stent

Pancreatic stents for the prevention of post-endoscopic retrograde cholangiopancreatography pancreatitis should be inserted up to the pancreatic body or tail

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World Journal of Gastroenterology 2018年第22期24卷 2392-2399页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki Konno Hiroyuki Asama Yuki Sato Hiroki Irie Ko Watanabe Jun nakamura Hitomi Kikuchi Yuichi Waragai mika Takasumi Takuto Hikichi Hiromasa Ohira Department of Gastroenterology School of Medicine Fukushima Medical University Department of Endoscopy Fukushima Medical University Hospital

AIM To investigate the location to which a pancreatic stent should be inserted to prevent post-endoscopic retrograde cholangiopancreatography(ERCP) pancreatitis(PEP).METHODS Over a ten-year period at our hospital, 296 patients underwent their first ERCP procedure and had a pancreatic stent inserted; this study included 147 patients who had ERCP performed primarily for biliary investigation and had a pancreatic stent inserted to prevent PEP. We dividedthese patients into two groups: 131 patients with a stent inserted into the pancreatic head(head group) and 16 patients with a stent inserted up to the pancreatic body or tail(body/tail group). Patient characteristics and ERCP factors were compared between the *** Pancreatic amylase isoenzyme(p-AMY) levels in the head group were significantly higher than those in the body/tail group [138.5(7.0-2086) vs 78.5(5.0-1266.5), P = 0.03] [median(range)]. No cases of PEP were detected in the body/tail group [head group, 12(9.2%)]. Of the risk factors for post-ERCP hyperamylasemia(≥ p-AMY median, 131 IU/L), procedure time ≥ 60 min [odds ratio(OR) 2.65, 95%CI: 1.17-6.02, P = 0.02) and stent insertion into the pancreatic head(OR 3.80, 95%CI: 1.12-12.9, P = 0.03) were identified as independent risk factors by multivariate *** Stent insertion up to the pancreatic body or tail reduces the risk of post-ERCP hyperamylasemia and may reduce the risk of PEP.

关键词： Pancreatic stent Endoscopic retrograde cholangiopancreatography Post-endoscopic retrograde cholangiopancreatography pancreatitis Post-endoscopic retrograde cholangiopancreatography hyperamylasemia Pancreatic body or tail

Biliary metal stents should be placed near the hilar duct in distal malignant biliary stricture patients

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World Journal of Gastroenterology 2022年第17期28卷 1860-1870页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki Konno Hiroyuki Asama Yuki Sato Hiroki Irie Yoshinori Okubo Jun nakamura mika Takasumi Minami Hashimoto Tsunetaka Kato Ryoichiro Kobashi Takumi Yanagita Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversityFukushima 9601295Japan Department of Endoscopy Fukushima Medical University HospitalFukushima 9601295Japan

BACKGROUND Endoscopic biliary drainage using a self-expandable metallic stent(SEMS)has been widely performed to treat distal malignant biliary obstruction(DMBO).However,the optimal position of the stent remains *** To determine the ideal position for SEMS *** In total,135 DMBO patients underwent SEMS(uncovered or covered)placement over a ten-year period.A total of 127 patients with biliary obstruction between the junction of the cystic duct and Vater’s papilla were *** SEMS was placed through the upper common bile duct 2 cm from the biliary hilar duct in 83 patients(Hilar group)or near the top of the biliary obstruction in 44 patients(Lower group).Technical and functional success,adverse events,and risk factors for SEMS dysfunction were *** The stent patency period was significantly longer in the Hilar group than in the Lower group(P value<0.01).In multivariate analysis,the only statistically significant risk factor for SEMS dysfunction was being in the Lower group(hazard ratio:9.94,95%confidence interval:2.25–44.0,P<0.01).CONCLUSION A longer patency period was achieved by positioning the SEMS near the biliary hilar duct.

关键词： Endoscopic biliary drainage Malignant biliary obstruction Uncovered self-expandable metallic stent Covered self-expandable metallic stent Biliary hilar duct Patency period

Can the wet suction technique change the efficacy of endoscopic ultrasound-guided fine-needle aspiration for diagnosing autoimmune pancreatitis type 1? A prospective single-arm study

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World Journal of Clinical Cases 2020年第1期8卷 88-96页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki Konno Hiroyuki Asama Yuki Sato Hiroki Irie Ko Watanabe Jun nakamura Hitomi Kikuchi mika Takasumi Minami Hashimoto Tsunetaka Kato Takuto Hikichi Kenji Notohara Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of MedicineFukushima 960-1295Japan Department of Endoscopy Fukushima Medical University HospitalFukushima 960-1295Japan Department of Anatomic Pathology Kurashiki Central HospitalKurashiki 710-8602Japan

BACKGROUND Other than surgery,endoscopic ultrasound-guided fine-needle aspiration(EUSFNA)is the only procedure for histologically diagnosing autoimmune pancreatitis(AIP).However,adequate specimens are difficult to ***,more adequate specimens were reported to be obtained with EUS-FNA with a wet suction technique(WEST)than with conventional *** To histologically diagnose AIP by EUS-FNA with a *** Eleven patients with possible type 1 AIP between February 2016 and August 2018 underwent EUS-FNA with a WEST(WEST group),with four punctures by 19 or 22 G *** a historical control,23 type 1 AIP patients who underwent no fewer than four punctures with 19 or 22 G needles were enrolled(DRY group).Patient characteristics and histological findings were compared between the two *** Three histopathological factors according to the International Consensus Diagnostic Criteria were significantly greater in the WEST group than the DRY group[lymphoplasmacytic infiltrate without granulocytic infiltration:9(81.8%)vs 6(26.1%),P=0.003,storiform fibrosis:5(45.5%)vs 1(4.3%),P=0.008,abundant(>10 cells/HPF)IgG4-positive cells:7(63.6%)vs 5(21.7%),P=0.026].Level 1 or level 2 histopathological findings were observed more often in the WEST group than in the DRY group[8(72.7%)vs 3(13.0%),P=0.001].CONCLUSION EUS-FNA with a WEST was more successful than standard EUS-FNA in histologically diagnosing AIP.

关键词： Autoimmune pancreatitis Endoscopic ultrasound-guided fine needle aspiration Wet suction technique

Push vs pull method for endoscopic ultrasound-guided fine needle aspiration of pancreatic head lesions: Propensity score matching analysis

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World Journal of Gastroenterology 2018年第27期24卷 3006-3012页

作者： Mitsuru Sugimoto Tadayuki Takagi Rei Suzuki Naoki Konno Hiroyuki Asama Yuki Sato Hiroki Irie Ko Watanabe Jun nakamura Hitomi Kikuchi Yuichi Waragai mika Takasumi Minami Hashimoto Yuko Hashimoto Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical UniversitySchool of Medicine Department of Endoscopy Fukushima Medical University Hospital Department of Diagnostic Pathology Fukushima Medical University

AIM To evaluate the efficacy of endoscopic ultrasoundguided fine needle aspiration(EUS-FNA) of pancreatic head cancer when pushing(push method) or pulling the echoendoscope(pull method).METHODS Overall, 566 pancreatic cancer patients had their first EUS-FNA between February 2001 and December 2017. Among them, 201 who underwent EUS-FNA for pancreatic head lesions were included in this study. EUS-FNA was performed by the push method in 85 patients, the pull method in 101 patients and both the push and pull methods in 15 patients. After propensity score matching(age, sex, tumor diameter, and FNA needle), 85 patients each were stratified into the push and pull groups. Patient characteristics and EUSFNA-related factors were compared between the two *** Patient characteristics were not significantly different between the two groups. The distance to lesion was significantly longer in the push group than in the pull group(13.9 ± 4.9 mm vs 7.0 ± 4.9 mm, P < 0.01). The push method was a significant factor influencing the distance to lesion(≥ median 10 mm)(P < 0.01). Additionally, tumor diameter ≥ 25 mm(OR = 1.91, 95%CI: 1.02-3.58, P = 0.043) and the push method(OR = 1.91, 95%CI: 1.03-3.55, P = 0.04) were significant factors contributing to the histological diagnosis of *** The pull method shortened the distance between the endoscope and the lesion and facilitated EUS-FNA of pancreatic head cancer. The push method contributed to the histological diagnosis of pancreatic head cancer using EUS-FNA specimens.

关键词： Endoscopic ultrasound-guided fine needle aspiration Pancreatic head Pancreatic cancer Push method Pull method

Dysbiosis of the duodenal microbiota as a diagnostic marker for pancreaticobiliary cancer

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World Journal of Gastrointestinal Oncology 2021年第12期13卷 2088-2100页

作者： Mitsuru Sugimoto Kazumichi Abe Tadayuki Takagi Rei Suzuki Naoki Konno Hiroyuki Asama Yuki Sato Hiroki Irie Ko Watanabe Jun nakamura Hitomi Kikuchi mika Takasumi Minami Hashimoto Tsunetaka Kato Ryoichiro Kobashi Takuto Hikichi Hiromasa Ohira Department of Gastroenterology Fukushima Medical University School of MedicineFukushima 960-1295Japan Department of Endoscopy Fukushima Medical University HospitalFukushima 960-1295Japan

BACKGROUND Pancreaticobiliary cancer(PB Ca)is a lethal disease,and a useful diagnostic marker is urgently needed.A correlation between the human microbiota and malignant gastrointestinal diseases was recently *** To investigate the efficacy of the duodenal microbiota for diagnosing PB *** We recruited 22 patients with benign pancreaticobiliary diseases(benign group)and 12 patients with PB Ca(malignant group).The duodenal microbiota of each patient was analyzed by the 16S rDNA terminal restriction fragment length polymorphism *** characteristics,tumor markers,and relative abundances of the duodenal microbiota were compared between the benign and malignant *** Cancer antigen 19-9(CA19-9),Bifidobacterium,Clostridium cluster XVIII,and Prevotella levels differed significantly between the benign and malignant *** cluster XVIII had the greatest area under the receiver operating characteristic curve(AUC)among the four factors with respect to diagnosing PB Ca(cutoff value:3.038%;sensitivity:58.3%;specificity:95.2%;AUC:0.81).The combination of Clostridium cluster XVIII(cutoff value:3.038%)and CA19-9 Levels(cutoff value:18.8 U/mL)showed 91.7%sensitivity and 71.4%specificity for diagnosing PB *** The duodenal microbiota may be useful for PB Ca screening.

关键词： Pancreaticobiliary cancer Diagnostic marker Duodenal microbiota Clostridium cluster XVIII Cancer antigen 19-9