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973篇 您的检索式:作者名="Takayanagi"
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1Continuous regional arterial infusion therapy with gabexate mesilate for severe acute pancreatitis显示文摘AIM: To evaluate the effi cacy of continuous regional arterial infusion therapy (CRAI) with gabexate mesilate and antibiotics for severe acute pancreatitis (SAP). METHODS: We conducted a prospective study on patients who developed SAP with or without CRAI. Out of 18 patients fulf illed clinical diagnostic criteria for SAP in Japan, 9 patients underwent CRAI, while 9 patients underwent conventional systemic protease inhibitor and antibiotics therapy (non-CRAI). CRAI was initiated within 72 h of the onset of pancreatitis. Gabexate mesilate (2400 mg/d) was continuously administered for 3 to 5 d. The clinical outcome including serum infl ammation-related parameters were examined. RESULTS: The duration of abdominal pain in the CRAI group was 1.9 ± 0.26 d, whereas that in the non-CRAI group was 4.3 ± 0.50. The duration of SIRS in the CRAI group was 2.2 ± 0.22 d, whereas that in the non- CRAI group was 3.2 ± 0.28. Abdominal pain and SIRS disappeared signifi cantly in a short period of time after the initiation of CRAI using gabexate mesilate. The average length of hospitalization signifi cantly differed between the CRAI and non-CRAI groups, 53.3 ± 7.9 d and 87.4 ± 13.9 d, respectively. During the first two weeks, levels of serum CRP and the IL6/IL10 ratio in the CRAI group tended to have a rapid decrease compared to those in the non-CRAI group. CONCLUSION: The present results suggest that CRAI using gabexate mesilate was effective against SAP.Yoshifumi Ino Yoshiyuki Arita Tetsuro Akashi Toshinari Kimura Hisato Igarashi Takamasa Oono Masayuki Furukawa Ken Kawabe Keiichiro Ogoshi Jiro Ouchi Toshihiko Miyahara Ryoichi Takayanagi Tetsuhide Ito 2008World Journal of Gastroenterology2008,14,41:20
2Retroperitoneal fibrosis associated with immunoglobulin G4-related disease显示文摘Retroperitoneal fibrosis is a rare disease characterized by the development of inflammation and fibrosis in the soft tissues of the retroperitoneum and other abdominal organs.Retroperitoneal fibrosis can be of 2 types:idiopathic and secondary.The recently advocated concept and diagnostic criteria of immunoglobulin G4(IgG4)-related disease,derived from research on autoimmune pancreatitis(AIP),has led to widespread recognition of retroperitoneal fibrosis as a condition caused by IgG4-related disease.We now know that previously diagnosed idiopathic retroperitoneal fibrosis includes IgG4-related disease;however,the actual prevalence is unclear.Conversely,some reports on AIP suggest that retroperitoneal fibrosis is concurrently found in about 10% of IgG4-related disease.Because retroperitoneal fibrosis has no specific symptoms,diagnosis is primarily based on diagnostic imaging(computed tomography and magnetic resonance imaging),which is also useful in evaluating the effect of therapy.Idiopathic retroperitoneal fibrosis can occur at different times with other lesions of IgG4-related disease including AIP.Thus,the IgG4 assay is recommended to diagnose idiopathic retroperitoneal fibrosis.High serum IgG4 levels should be treated and monitored as a symptom of IgG4-related disease.The first line of treatment for retroperitoneal fibrosis is steroid therapy regardless of its cause.For patients with concurrent AIP,i.e.,IgG4-related retroperitoneal fibrosis,the starting dose of steroid is usually 30-40 mg/d.The response to steroid therapy is generally favorable.In most cases,the pancreatic lesion and retroperitoneal fibrosis improve after the initial treatment.However,the epidemiology,treatment for recurring retroperitoneal fibrosis,and long-term prognosis are still largely unknown.Further analysis of such cases and research are necessary.Nao Fujimori Tetsuhide Ito Hisato Igarashi Takamasa Oono Taichi Nakamura Yusuke Niina Masayuki Hijioka Lingaku Lee Masahiko Uchida Ryoichi Takayanagi 2013World Journal of Gastroenterology2013,19,1:14
3Efficacy of an orally active small-molecule inhibitor of RANKL in bone metastasis显示文摘Bone is one of the preferred sites for the metastasis of malignant tumours,such as breast cancer,lung cancer and malignant melanoma.Tumour cells colonizing bone have the capacity to induce the expression of receptor activator of nuclear factor-κB ligand(RANKL),which promotes osteoclast differentiation and activation.Tumour-induced osteoclastic bone resorption leads to a vicious cycle between tumours and bone cells that fuels osteolytic tumour growth,causing bone pain and hypercalcaemia.Furthermore,RANKL contributes to bone metastasis by acting as a chemoattractant to bone for tumour cells that express its receptor,RANK.Thus inhibition of the RANKL–RANK pathway is a promising treatment for bone metastasis,and a human monoclonal anti-RANKL antibody,denosumab,has been used in the clinic.However,orally available drugs targeting RANKL must be developed to increase the therapeutic benefits to patients.Here we report the efficacy of the small-molecule RANKL inhibitor AS2676293 in treating bone metastasis using mouse models.Oral administration of AS2676293 markedly inhibited bone metastasis of human breast cancer cells MDA-MB-231-5a-D-Luc2 as well as tumour-induced osteolysis.AS2676293 suppressed RANKLmediated tumour migration in the transwell assay and inhibited bone metastasis of the murine cell line B16F10,which is known not to trigger osteoclast activation.Based on the results from this study,RANKL inhibition with a small-molecule compound constitutes a promising therapeutic strategy for treating bone metastasis by inhibiting both osteoclastic bone resorption and tumour migration to bone.Yuta Nakai Kazuo Okamoto Asuka Terashima Shogo Ehata Jun Nishida Takeshi Imamura Takashi Ono Hiroshi Takayanagi 2019Bone Research2019,7,1:8
4Exenatide improves hepatic steatosis by enhancing lipid use in adipose tissue in nondiabetic rats显示文摘AIM:To investigate the metabolic changes in skeletal muscle and/or adipose tissue in glucagon-like peptide-1-induced improvement of nonalcoholic fatty liver disease(NAFLD).METHODS:Male Wistar rats were fed either a control diet(control group)or a high-fat diet(HFD).After 4wk,the HFD-fed rats were subdivided into two groups;one group was injected with exenatide[HFD-Ex(+)group]and the other with saline[HFD-Ex(-)group]every day for 12 wk.The control group received saline and were fed a control diet.Changes in weight gain,energy intake,and oxygen consumption were analyzed.Glucose tolerance tests were performed after 8 wk of treatment.Histological assessments were performed in liver and adipose tissue.RNA expression levels of lipid metabolism related genes were evaluated in liver,skeletal muscle,and adipose tissue.RESULTS:Exenatide attenuated weight gain[HFDEx(-)vs HFD-Ex(+)]and reduced energy intake,which was accompanied by an increase in oxygen consumption and a decrease in the respiratory exchange ratio[HFD-Ex(-)vs HFD-Ex(+)].However,exenatide did not affect glucose tolerance.Exenatide reduced lipid content in the liver and adipose tissue.Exenatide did not affect the expression of lipid metabolism-related genes in the liver or skeletal muscle.In adipose tissue,exenatide significantly upregulated lipolytic genes,including hormone-sensitive lipase,carnitine palmitoyltransferase-1,long-chain acyl-CoA dehydrogenase,and acyl-CoA oxidase 1[HFD-Ex(-)vs HFD-Ex(+)].Exenatide also upregulated catalase and superoxide dismutase 2[HFD-Ex(-)vs HFD-Ex(+)].CONCLUSION:In addition to reducing appetite,enhanced lipid use by exenatide in adipose tissue may reduce hepatic lipid content in NAFLD,most likely by decreasing lipid influx into the liver.Kosuke Tanaka Yuko Masaki Masatake Tanaka Masayuki Miyazaki Munechika Enjoji Makoto Nakamuta Masaki Kato Masatoshi Nomura Toyoshi Inoguchi Kazuhiro Kotoh Ryoichi Takayanagi 2014World Journal of Gastroenterology2014,20,10:6
5Endoscopic approach through the minor papilla for the management of pancreatic diseases显示文摘AIM:To clarify the efficacy and safety of an endoscopic approach through the minor papilla for the management of pancreatic diseases.METHODS:This study included 44 endoscopic retrograde cholangiopancreatography(ERCP) procedures performed in 34 patients using a minor papilla approach between April 2007 and March 2012.We retrospectively evaluated the clinical profiles of the patients,the endoscopic interventions,short-term outcomes,and complications.RESULTS:Of 44 ERCPs,26 were diagnostic ERCP,and 18 were therapeutic ERCP.The most common cause of difficult access to the main pancreatic duct through the major papilla was pancreas divisum followed by distortion of Wirsung's duct.The overall success rate of minor papilla cannulation was 80%(35/44),which was significantly improved by wire-guided cannulation(P = 0.04).Endoscopic minor papillotomy(EMP) was performed in 17 of 34 patients(50%) using a needle-knife(13/17) or a pull-type papillotome(4/17).EMP with pancreatic stent placement,which was the main therapeutic option for patients with chronic pancreatitis,recurrent acute pancreatitis,and pancreatic pseudocyst,resulted in short-term clinical improvement in 83% of patients.Mild post-ERCP pancreatitis occurred as an early complication in 2 cases(4.5%).CONCLUSION:The endoscopic minor papilla approach is technically feasible,safe,and effective when the procedure is performed in a high-volume referral center by experienced endoscopists.Nao Fujimori Hisato Igarashi Akira Asou Ken Kawabe Lingaku Lee Takamasa Oono Taichi Nakamura Yusuke Niina Masayuki Hijioka Masahiko Uchida Kazuhiro Kotoh Kazuhiko Nakamura Tetsuhide Ito Ryoichi Takayanagi 2013World Journal of Gastrointestinal Endoscopy2013,5,3:6
6Lysophosphatidic acid induced nuclear translocation of nuclear factor-κB in Panc-1 cells by mobilizing cytosolic free calcium显示文摘AIM: To clarify whether Lysophosphatidic acid (LPA) activates the nuclear translocation of nuclear factor-κB (NF-κB) in pancreatic cancer. METHODS: Panc-1, a human pancreatic cancer cell line, was used throughout the study. The expression of LPA receptors was confirmed by reverse-transcript polymerase chain reaction (RT-PCR). Cytosolic free calcium was measured by fluorescent calcium indicator fura-2, and the localization of NF-κB was visualized by immunofluorescent method with or without various agents, which effect cell signaling. RESULTS: Panc-1 expressed LPA receptors, LPA1, LPA2 and LPA3. LPA caused the elevation of cytosolic free calcium dose-dependently. LPA also caused the nuclear translocation of NF-κB. Cytosolic free calcium was attenuated by pertussis toxin (PTX) and U73122, an inhibitor of phospholipase C. The translocation of NF-κB was similarly attenuated by PTX and U73122, but phorbol ester, an activator of protein kinase C, alone did not translocate NF-κB. Furthermore, the translocation of NF-κB was completely blocked by Ca2+ chelator BAPTA-AM. Thapsigargin, an endoplasmic- reticulum Ca2+-ATPase pump inhibitor, also promoted the translocation of NF-κB. Staurosporine, a proteinkinase C inhibitor, attenuated translocation of NF-κB induced by LPA. CONCLUSION: These findings suggest that protein kinase C is activated endogenously in Panc-1, and protein kinase C is essential for activating NF-κB with cytosolic calcium and that LPA induces the nuclear translocation of NF-κB in Panc-1 by mobilizing cytosolic free calcium.Yoshiyuki Arita Tetsuhide Ito Takamasa Oono Ken Kawabe Terumasa Hisano Ryoichi Takayanagi 2008World Journal of Gastroenterology2008,14,28:5
7Fractalkine and TGF-β1 levels reflect the severity of chronic pancreatitis in humans显示文摘AIM: To clarify whether serum chemokine and cytokine levels can become useful biological and functional markers to assess the severity of chronic pancreatitis (CP). This study aimed at clarifying whether serum chemokine and cytokine levels can become useful biological and functional markers to assess the severity of CP. METHODS: Serum monocyte chemoattractant protein-1 (MCP-1), transforming growth factor beta-1 (TGF-β1), and soluble type fractalkine (s-fractalkine) concentrations were examined in patients with CP (n = 109) and healthy controls (n = 116). Severity of disease was classified in patients with CP by a staging system. Relationships between stage-specifi c various clinical factors and serum MCP-1, TGF-β1, and s-fractalkine levels were investigated. Furthermore, 57 patients with non-alcoholic CP were similarly evaluated in order to exclude in? uence of alcohol intake. RESULTS: Patients with CP showed signifi cant higher levels of serum TGF-β1 and s-fractalkine, but not MCP-1, compared to the controls. Serum TGF-β1 in the severe stage and s-fractalkine in the mild and thesevere stage of CP significantly increased compared to those of controls. However, it was observed that both TGF-β1 and s-fractalkine levels were affected by alcohol intake. In patients with non-alcoholic CP, serum TGF-β1 showed significant increase in the moderate stage of CP, and serum s-fractalkine revealed signifi cant increase in the early stage of CP. CONCLUSION: It is suggested that the measurement of serum F-fractalkine is useful to diagnose early-stage CP. Moreover, the combined determination of both, s-fractalkine and TGF-β1, in human sera may be helpful in evaluating the severity status of CP.Mikihiko Yasuda Tetsuhide Ito Takamasa Oono Ken Kawabe Toyoma Kaku Hisato Igarashi Taichi Nakamura Ryoichi Takayanagi 2008World Journal of Gastroenterology2008,14,42:4
8Chemoradiotherapy with twice-weekly administration of low-dose gemcitabine for locally advanced pancreatic cancer显示文摘AIM:To evaluate the chemoradiotherapy for locally advanced pancreatic cancer utilizing low dose gemcitabine as a radiation sensitizer administered twice weekly. METHODS: We performed a retrospective analysis of chemoradiotherapy utilizing gemcitabine administered twice weekly at a dose of 40 mg/m2. After that, maintenance systemic chemotherapy with gemcitabine, at a dose of 1000 mg/m2, was administered weekly for 3 wk with 1-wk rest until disease progression or unacceptable toxicity developed. RESULTS: Eighteen patients with locally advanced unresectable pancreatic cancer were enrolled. Three of those patients could not continue with the therapy; one patient had interstitial pneumonia during radiation therapy and two other patients showed liver metastasis or peritoneal metastasis during an early stage of the therapy. The median survival was 15.0 mo and the overall 1-year survival rate was 60%, while the median progression-free survival was 8.0 mo. The subgroup which showed the reduction of tumor development, more than 50% showed a tendency for a better prognosis; however, other parameters including age, gender and performance status did not correlate with survival. The median survival of the groups that died of liver metastasis and peritoneal metastasis were 13.0 mo and 27.7 mo, respectively.CONCLUSION: Chemoradiotherapy with low-dose gemcitabine administered twice weekly could be effective to patients with locally advanced pancreatic cancer; however, patients developing liver metastases had a worse prognosis. Another chemoradiotherapy strategy might be needed for those patients, such as administrating one or two cycles of chemotherapy initially, followed by chemoradiotherapy for the cases with no distant metastases.Hisato Igarashi Tetsuhide Ito Ken Kawabe Terumasa Hisano Yoshiyuki Arita Toyoma Kaku Ryoichi Takayanagi 2008World Journal of Gastroenterology2008,14,34:3
9Mucosal-incision assisted biopsy for suspected gastric gastrointestinal stromal tumors显示文摘To evaluate the diagnostic yield of the procedure, mucosal-incision assisted biopsy (MIAB), for the histological diagnosis of gastric gastrointestinal stromal tumor (GIST), we performed a retrospective review of the 27 patients with suspected gastric GIST who underwent MIAB in our hospitals. Tissue samples obtained by MIAB were sufficient to make a histological diagnosis (diagnostic MIAB) in 23 out of the 27 patients, where the lesions had intraluminal growth patterns. Alternatively, the samples were insufficient (non-diagnosticMIAB) in remaining 4 patients, three of whom had gastric submucosal tumor with extraluminal growth patterns. Although endoscopic ultrasound and fine needle aspiration is the gold standard for obtaining tissue specimens for histological and cytological analysis of suspected gastric GISTs, MIAB can be used as an alternative method for obtaining biopsy specimens of lesions with an intraluminal growth pattern.Eikichi Ihara Hiroshi Matsuzaka Kuniomi Honda Yoshitaka Hata Yorinobu Sumida Hirotada Akiho Tadashi Misawa Satoshi Toyoshima Yoshiharu Chijiiwa Kazuhiko Nakamura Ryoichi Takayanagi 2013World Journal of Gastrointestinal Endoscopy2013,5,4:3
10Antithrombin Ⅲ injection via the portal vein suppresses liver damage显示文摘AIM:To investigate the effects of antithrombin Ⅲ(AT Ⅲ) injection via the portal vein in acute liver failure.METHODS:Thirty rats were intraperitoneally challenged with lipopolysaccharide(LPS) and D-galactosamine(GalN) and divided into three groups:a control group;a group injected with AT Ⅲ via the tail vein;and a group injected with AT Ⅲ via the portal vein.AT Ⅲ(50 U/kg body weight) was administrated 1 h after challenge with LPS and GalN.Serum levels of inflammatory cytokines and fibrin degradation products,hepatic fibrin deposition,and hepatic mRNA expression of hypoxiarelated genes were analyzed.RESULTS:Serum levels of alanine aminotransferase,tumor necrosis factor-α and interleukin-6 decreased significantly following portal vein AT Ⅲ injection compared with tail vein injection,and control rats.Portal vein AT Ⅲ injection reduced liver cell destruction and decreased hepatic fibrin deposition.This treatment also significantly reduced hepatic mRNA expression of lactate dehydrogenase and heme oxygenase-1.CONCLUSION:A clinically acceptable dose of AT Ⅲ injection into the portal vein suppressed liver damage,probably through its enhanced anticoagulant and antiinflammatory activities.Masayuki Miyazaki Masaki Kato Masatake Tanaka Kosuke Tanaka Shinichiro Takao Motoyuki Kohjima Tetsuhide Ito Munechika Enjoji Makoto Nakamuta Kazuhiro Kotoh Ryoichi Takayanagi 2012World Journal of Gastroenterology2012,18,16:2
11获得性痣和小的先天性痣显示BRAF V600E高频突变而中等大小先天性痣显示低频突变显示文摘To investigate whether the frequency of the BRAFV600E (Vraf murine sarcoma virus oncogene homolog B1) mutation in melanocytic nevi is associated with sun exposure patterns, we examined 120 acquired melanocytic nevi excised from various anatomic sites, including glabrous skin, aswell as 62 congenital nevi. We used a new mutation detection system based on the shifted termination assay, called Mutector, which was able to detect only 5%of heterozygous mutant cells within the samples. We detected the mutation in 105/120 (87.5%) acquired nevi and 43/62 (69.4%) congenital nevi. Notably, we found themutation in 35/43 (81.4%) acquired nevi excised from glabrous skin and genitalia. These results strongly suggest that UV light is not necessarily required for the acquisition of the BRAFV600E mutation, and suggest that non-mutagenic effects of UV light to melanocytes may be more important in the nevogenesis. Additionally,we showed heterogeneous distribution of BRAF-mutated cells within the lesions of small congenital nevi by a combination of laser microdissection and direct sequencing. Finally, we found low frequency of BRAFV600E mutation (6/20, 30.0%) in medium-sized congenital nevi. Most of these neviwithwild-type BRAF had neroblastomaras viral oncogene homolog mutations (9/14, 64.3%), suggesting different pathogenesis of medium-sized congenital nevi from acquired nevi and small congenital nevi.Ichii-Nakato N. Takata M. Takayanagi S 董平 2006世界核心医学期刊文摘(皮肤病学分册)2006,,12:2
12An increase in the serum amylase level in patients after peroral double-balloon enteroscopy: an association with the development of pancreatitis显示文摘K. Honda S. Itaba T. Mizutani Y. Sumida K. Kanayama N. Higuchi S. Yoshinaga H. Akiho K. Kawabe Y. Arita T. Ito K. Nakamura R. Takayanagi 2006Endoscopy2006,,10:2
13SREBP-1c, regulated by the insulin and AMPK signaling pathways, playsa role in nonalcoholic fatty liver disease显示文摘Motoyuki Kohjima Nobito Higuchi Masaki Kato Kazuhiro Kotoh Tsuyoshi Yoshimoto Tatsuya Fujino Masayoshi Yada Ryoko Yada Naohiko Harada Munechika Enjoji Ryoichi Takayanagi Makoto Nakamuta 2008International Journal of Molecular Medicine2008,,4:2
14A case of small bowel adenocarcinoma in a patient with Crohn’s disease detected by PET/CT and double-balloon enteroscopy显示文摘Small bowel adenocarcinoma (SBA) in patients with Crohn’s disease (CD) is quite rare, difficult to diagnose without surgery, and has a poor prognosis. Here, we report a 48-year-old man with SBA and a 21-year history of CD who was diagnosed by a combination of positron emission tomography/computed tomography (PET/CT) and double-balloon enteroscopy (DBE). Since the age of 27 years, the patient had been treated for ileal CD and was referred to our hospital with persistent melena. Multiple hepatic tumors were found by CT. PET/CT detected an accumulation spot in the small bowel. DBE revealed an ulcerative tumor in the ileum about 100 cm from the ileocecal valve. An endoscopic forceps biopsy specimen showed poorly differentiated adenocarcinoma. There were some longitudinal ulcer scars near the tumor, and the chronic inflammation inthe small bowel appeared to be associated with the cancer development. Previous reports suggest the risk of SBA in patients with CD is higher than in the overall population. Since early diagnosis is extremely difficult in these cases, novel techniques, such as PET/CT and DBE, may be expected to help in making a preoperative diagnosis of the development of SBA in CD.Chise Kodaira Satoshi Osawa Chihiro Mochizuki Yoshihiko Sato Masafumi Nishino Takanori Yamada Yasuhiro Takayanagi Kosuke Takagaki Ken Sugimoto Shigeru Kanaoka Takahisa Furuta Mutsuhiro Ikuma 2009World Journal of Gastroenterology2009,15,14:2
15Increased hepatic expression of dipeptidyl peptidase-4 in non-alcoholicfatty liver disease and its association with insulin resistance and glucose metabolism显示文摘Masayuki Miyazaki Masaki Kato Kosuke Tanaka Masatake Tanaka Motoyuki Kohjima Kazuhiko Nakamura Munechika Enjoji Makoto Nakamuta Kazuhiro Kotoh Ryoichi Takayanagi 2012Molecular Medicine Reports2012,,3:2
16Simultaneous augmentation of muscle and bone by locomomimetism through calcium-PGC-1αsignaling显示文摘Impaired locomotion has been extensively studied worldwide because those afflicted with it have a potential risk of becoming bedridden.Physical exercise at times can be an effective remedy for frailty,but exercise therapy cannot be applied in all clinical cases.Medication is safer than exercise,but there are no drugs that reinforce both muscle and bone when administered alone.Multiple medications increase the risk of adverse events;thus,there is a need for individual drugs targeting both tissues.To this end,we established a novel sequential drug screening system and identified an aminoindazole derivative,locamidazole(LAMZ),which promotes both myogenesis and osteoblastogenesis while suppressing osteoclastogenesis.Administration of this drug enhanced locomotor function,with muscle and bone significantly strengthened.Mechanistically,LAMZ induced Mef2c and PGC-1αin a calcium signaling–dependent manner.As this signaling is activated upon physical exercise,LAMZ mimics physical exercise.Thus,LAMZ is a promising therapeutic drug for locomotor diseases,including sarcopenia and osteoporosis.Takehito Ono Ryosuke Denda Yuta Tsukahara Takashi Nakamura Kazuo Okamoto Hiroshi Takayanagi Tomoki Nakashima 2022Bone Research2022,10,4:2
17Synthesis of a chitosan-based chelating resin and its application to the selective concentration and ultratrace detemination of silver in environmental water samples显示文摘Rosi Ketrin Katarina Toshio Takayanagi Mitsuko O shima 2006Analytical Chimica Acta2006,,558:1
18Effect of coagulation conditions on crystal modification of poly (p-phenylene terephthalamide) 显示文摘HARAGUCHI K KAJIYAMA T TAKAYANAGI M 1979Journal of Applied Polymer Science1979,23,:1
19Suppression of arthritic bone osteoclasts显示文摘 Juji T Tsuyoshi Miyazaki T 1999Clin Invest1999,104,2:1
20Circulating matrix metalloproteinase-1 and -3 in patients with an acute coronary syndrome显示文摘Inoue T Kato T Takayanagi K 2003Am J Cardiol2003,92,12:1
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