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| 1 | Magnetic anchor guidance for endoscopic submucosal dissection and other endoscopic procedures显示文摘Endoscopic submucosal dissection(ESD) is a wellestablished, minimally invasive treatment for superficial neoplasms of the gastrointestinal tract. The universal adoption of ESD has been limited by its slow learning curve, long procedure times, and high risk of complications. One technical challenge is the lack of a second hand that can provide traction, as in conventional surgery. Reliable tissue retraction that exposes the submucosal plane of dissection would allow for safer and more efficient dissection. Magnetic anchor guided endoscopic submucosal dissection(MAGESD) has potential benefits compared to other current traction methods. MAG-ESD offers dynamic tissue retraction independent of the endoscope mimicking a surgeon's 'second hand'. Two types of magnets can be used: electromagnets and permanent magnets. In this article we review the MAG-ESD technology, published work and studies of magnets in ESD. We also review the use of magnetic anchor guidance systems in natural orifice transluminal endoscopic surgery and the idea of magnetic non-contact retraction using surface ferromagentization. We discuss the current limitations, the future potential of MAG-ESD and the developments needed for adoption of this technology. | Mohamed Mortagy Neal Mehta Mansour A Parsi Seiichiro Abe Tyler Stevens John J Vargo Yutaka Saito Amit Bhatt | 2017 | World Journal of Gastroenterology2017，23，16： | 12 |
| 2 | Diagnostic and therapeutic direct peroral cholangioscopy using an intraductal anchoring balloon显示文摘AIM:To report our experience using a recently introduced anchoring balloon for diagnostic and therapeutic direct peroral cholangioscopy(DPOC).METHODS:Consecutive patients referred for diagnostic or therapeutic peroral cholangioscopy were evaluated in a prospective cohort study.The patients underwent DPOC using an intraductal anchoring balloon,which was recently introduced to allow consistent access to the biliary tree with an ultraslim upper endoscope.The device was later voluntarily withdrawn from the market by the manufacturer.RESULTS:Fourteen patients underwent DPOC using the anchoring balloon.Biliary access with an ultraslim upper endoscope was accomplished in all 14 patients.In 12(86%) patients,ductal access required sphincteroplasty with a 10-mm dilating balloon.Intraductal placement of the ultraslim upper endoscope allowed satisfactory visualization of the biliary mucosa to the level of the confluence of the right and left hepatic ducts in 13 of 14 patients(93%).Therapeutic interventions by DPOC were successfully completed in all five attempted cases(intraductal biopsy in one and DPOC guided laser lithotripsy in four).Adverse events occurred in a patient on immunosuppressive therapy who developed an intrahepatic biloma at the site of the anchoring balloon.This required hospitalization and antibiotics.Repeat endoscopic retrograde cholangiopancreatography 8 wk after the index procedure showed resolution of the biloma.CONCLUSION:Use of this anchoring balloon allowed consistent access to the biliary tree for performance of diagnostic and therapeutic DPOC distal to the biliary bifurcation. | Mansour A Parsi Tyler Stevens John J Vargo | 2012 | World Journal of Gastroenterology2012，18，30： | 8 |
| 3 | Update on endoscopic pancreatic function testing显示文摘Hormone-stimulated pancreatic function tests (PFTs) are considered the gold standard for measuring pancreatic exocrine function. PFTs involve the administration of intravenous secretin or cholecystokinin, followed by collection and analysis of pancreatic secretions. Because exocrine function may decline in the earliest phase of pancreatic fibrosis, PFTs are considered accurate for diagnosing chronic pancreatitis. Unfortunately, these potentially valuable tests are infrequently performed except at specialized centers, because they are time consuming and complicated. To overcome these limitations, endoscopic PFT methods have been developed which include aspiration of pancreatic secretions through the suction channel of the endoscope. The secretin endoscopic pancreatic function test (ePFT) involves collection of duodenal aspirates at 15, 30, 45 and 60 min after secretin stimulation. A bicarbonate concentration greater than 80 mmol/L in any of the samples is considered a normal result. The secretin ePFT has demonstrated good sensitivity and specificity compared with various reference standards, including the 'Dreiling tube' secretin PFT, endoscopic ultrasound, and surgical histology. Furthermore, a standard autoanalyzer can be used for bicarbonate analysis, which allows the secretin ePFT to be performed at any hospital. The secretin ePFT may complement imaging tests like endoscopic ultrasound (EUS) in the diagnosis of early chronic pancreatitis.This paper will review the literature validating the use of ePFT in the diagnosis of exocrine insufficiency and chronic pancreatitis. Newer developments will also be discussed, including the feasibility of combined EUS/ ePFT, the use of cholecystokinin alone or in combination with secretin, and the discovery of new protein and lipid pancreatic juice biomarkers which may complement traditional fluid analysis. | Tyler Stevens Mansour A Parsi | 2011 | World Journal of Gastroenterology2011，17，35： | 5 |
| 4 | Endoscopic ultrasound for the diagnosis of chronic pancreatitis显示文摘Endoscopic ultrasound(EUS) has become a well accepted test for the diagnosis of chronic pancreatitis.Advantages include its ability to detect subtle and severe changes of the pancreatic duct and parenchyma,and its relative safety compared with endoscopic retrograde cholangiopancreatography.Limitations include inter-and intraobserver variability,operator dependence,and an incomplete understanding of its true accuracy.The Rosemont classif ication has recently been proposed as a weighted,standardized method that may improve EUS chronic pancreatitis scoring.This paper reviews the published evidence regarding the accuracy of EUS in chronic pancreatitis diagnosis,and enumerates the emerging technologies that have been recently studied which may ultimately improve endosonographic imaging of the pancreas. | Tyler Stevens Mansour A Parsi | 2010 | World Journal of Gastroenterology2010，16，23： | 5 |
| 5 | Histologic and Imaging Features of Mural Nodules in Mucinous Pancreatic Cysts显示文摘 | Ning Zhong Lizhi Zhang Naoki Takahashi Vladislav Shalmiyev Marcia Irene Canto Jonathan E. Clain John C. Deutsch John DeWitt Mohamad A. Eloubeidi Ferga C. Gleeson Michael J. Levy Shawn Mallery Massimo Raimondo Elizabeth Rajan Tyler Stevens Mark Topazian | 2012 | Clinical Gastroenterology and Hepatology2012，，2： | 2 |
| 6 | Macrophage-specific inhibition of the histone demethylase JMJD3 decreases STING and pathologic inflammation in diabetic wound repair显示文摘Macrophage plasticity is critical for normal tissue repair following injury.In pathologic states such as diabetes,macrophage plasticity is impaired,and macrophages remain in a persistent proinflammatory state;however,the reasons for this are unknown.Here,using single-cell RNA sequencing of human diabetic wounds,we identified increased JMJD3 in diabetic wound macrophages,resulting in increased inflammatory gene expression.Mechanistically,we report that in wound healing,JMJD3 directs early macrophage-mediated inflammation via JAK1,3/STAT3 signaling.However,in the diabetic state,we found that IL-6,a cytokine increased in diabetic wound tissue at later time points post-injury,regulates JMJD3 expression in diabetic wound macrophages via the JAK1,3/STAT3 pathway and that this late increase in JMJD3 induces NFκB-mediated inflammatory gene transcription in wound macrophages via an H3K27me3 mechanism.Interestingly,RNA sequencing of wound macrophages isolated from mice with JMJD3-deficient myeloid cells(Jmjd3f/fLyz2Cre+)identified that the STING gene(Tmem173)is regulated by JMJD3 in wound macrophages.STING limits inflammatory cytokine production by wound macrophages during healing.However,in diabetic mice,its role changes to limit wound repair and enhance inflammation.This finding is important since STING is associated with chronic inflammation,and we found STING to be elevated in human and murine diabetic wound macrophages at late time points.Finally,we demonstrate that macrophage-specific,nanoparticle inhibition of JMJD3 in diabetic wounds significantly improves diabetic wound repair by decreasing inflammatory cytokines and STING.Taken together,this work highlights the central role of JMJD3 in tissue repair and identifies cell-specific targeting as a viable therapeutic strategy for nonhealing diabetic wounds. | Christopher O.Audu William J.Melvin Amrita D.Joshi Sonya J.Wolf Jadie Y.Moon Frank M.Davis Emily C.Barrett Kevin D.Mangum Hongping Deng Xianying Xing Rachel Wasikowski Lam C.Tsoi Sriganesh B.Sharma Tyler M.Bauer James Shadiow Matthew A.Corriere Andrea TObi Steven LKunkel Benjamin Levi Bethany BMoore Johann EGudjonsson Andrew MSmith Katherine A.Gallagher | 2022 | Cellular & Molecular Immunology2022，19，11： | 2 |
| 7 | Clinical outcomes of endoscopic management of pancreatic fluid collections in cirrhotics vs non-cirrhotics: A comparative study显示文摘BACKGROUND Endoscopic management of symptomatic pancreatic fluid collections (PFCs) using self-expandable metal stents (SEMS) placement has emerged as an innovative therapeutic approach with excellent efficacy, safety, and relatively few adverse outcomes. However, their use has not been studied in patients with cirrhosis. Cirrhotics tend to be considered less than optimal candidates due to concern for portal hypertension and coagulopathy related complications. AIM To compare the efficacy and safety of using SEMS for drainage of symptomatic PFCs in cirrhotic vs non-cirrhotic patients. METHODS We conducted a retrospective comparative analysis of patients with symptomatic PFCs [pancreatic pseudocyst (PP) or walled-off necrosis (WON)] who underwent endoscopic ultrasound (EUS)-guided placement of fully covered self-expandable metals stents or lumen-apposing self-expandable metal stents. All patients were followed clinically until resolution of PFCs or death. Definition:(1) Technical success was defined as successful placement of SEMS;and (2) Clinical success was defined as complete resolution of the PFCs without additional interventions including interventional radiology or surgery. Number of procedures performed per patient, number of patients who achieved complete resolution of the PFCs without additional interventions and procedure related adverse events were recorded.RESULTS From January 2012 to December 2017, a total of 88 patients underwent EUSguided drainage of symptomatic PFCs. Of these, 58 non cirrhotic patients underwent plastic stent insertion for management of PFC and 30 patients, 5 with cirrhosis and 25 without cirrhosis, underwent EUS-guided transmural drainage with SEMS, including 18 (60%) PP and 12 (40%) WON. Technical success was achieved in all 30 patients. Clinical success was achieved in 60% cirrhotic patients and 92% non-cirrhotics (P = 0.12). Procedure-related adverse events were 60% in cirrhotic and 28% non-cirrhotic (P = 0.62). Moreover, fatal adverse events were statistically more common in cirrhotics compared with non-cirrhotics (0 vs 40%;P = 0.023). Successful stent removal following resolution of the PFC, was 60% in cirrhotics and 80% in non-cirrhotics (P = 0.57). Post-procedure length of hospitalization was 18.6 ± 20.3 d in cirrhotics and 5.6 ± 13.7 d in non-cirrhotics (P = 0.084). CONCLUSION EUS-guided management of PFC using SEMS placement has a high technical and clinical success rate in non-cirrhotics. However, in cirrhotics caution must be exercised given the high morbidity and mortality as evidenced by our cohort, particularly for the endoscopic debridement of WONs. Larger, multicenter studies are warranted to further characterize the risk profile and outcomes in these patients. | Sobia Laique Matheus C Franco Tyler Stevens Amit Bhatt John J Vargo Prabhleen Chahal | 2019 | World Journal of Gastrointestinal Endoscopy2019，11，6： | 2 |
| 8 | Supraventricular tachycardia causing heart failure显示文摘 | Mahmoud Houmsse Jaret Tyler Steven Kalbfleisch | 2011 | Current Opinion in Cardiology2011，，： | 1 |
| 9 | The group engagement mod- el: Procedural justice, social identity, and cooperative behav- ior 显示文摘 | Tom R Tyler Steven L Blader | 2003 | Personality and Social Psychology Review2003，7，4： | 1 |
| 10 | Diagnostic and therapeutic cholangiopancreatoscopy: performance of a new digital cholangioscope显示文摘 | Mansour A. Parsi Sunguk Jang Madhusudhan Sanaka Tyler Stevens John J. Vargo | 2013 | Gastrointestinal Endoscopy2013，，： | 1 |
| 11 | A prospective crossover study comparing secretin-stimulated endoscopic and Dreiling tube pancreatic function testing in patients evaluated for chronic pancreatitis显示文摘 | Tyler Stevens Darwin L. Conwell Gregory Zuccaro Frederick Van Lente Rocio Lopez Edward Purich Seymour Fein | 2008 | Gastrointestinal Endoscopy2008，，3： | 1 |
| 12 | Laminar boundary-layer instabilities on hypersonic cones: computations for benchmark experiments显示文摘 | TYLER W R STEVEN P S | 2005 | AIAA Paper2005，5024，： | 1 |
| 13 | Elastofibroma: the initial report in the oral mucosa显示文摘 | Tyler J Potter Don-John Summerlin Steven F Rodgers | 2004 | Oral Surgery Oral Medicine Oral Pathology Oral Radiology and Endodontology2004，，1： | 1 |
| 14 | Fixation Versus Replacement of Radial Head in Terrible Triad: Is There a Difference in Elbow Stability and Prognosis?显示文摘 | Tyler Steven Watters Grant E. Garrigues David Ring David S. Ruch | 2014 | Clinical Orthopaedics and Related Research?2014，，7： | 1 |
| 15 | Optimizing interstitial delivery of BCNU from controlled release polymers for the treatment of brain tumors显示文摘 | Eric P. Sipos Betty Tyler Steven Piantadosi Peter C. Burger H. Brem | 1997 | Cancer Chemotherapy and Pharmacology1997，，5： | 1 |
| 16 | Adding Triamcinolone to Endoscopic Ultrasound–Guided Celiac Plexus Blockade Does Not Reduce Pain in Patients With Chronic Pancreatitis显示文摘 | Tyler Stevens Adele Costanzo Rocio Lopez Leonardo Kapural Mansour A. Parsi John J. Vargo | 2012 | Clinical Gastroenterology and Hepatology2012，，2： | 1 |
| 17 | Evaluation of Duct-Cell and Acinar-Cell Function and Endosonographic Abnormalities in Patients With Suspected Chronic Pancreatitis显示文摘 | Tyler Stevens John A. Dumot Gregory Zuccaro John J. Vargo Mansour A. Parsi Rocio Lopez H. Lester Kirchner Edward Purich Darwin L. Conwell | 2009 | Clinical Gastroenterology and Hepatology2009，，1： | 1 |
| 18 | Utility of a prototype peroral video cholangioscopy system with narrow-band imaging for evaluation of biliary disorders (with videos)显示文摘 | Mansour A. Parsi Tyler Stevens James Collins John J. Vargo | 2011 | Gastrointestinal Endoscopy2011，，5： | 1 |
| 19 | Optimizing interstitial delivery of BCNU from controlled release polymers for the treatment of brain tumors显示文摘 | Eric P. Sipos Betty Tyler Steven Piantadosi Peter C. Burger H. Brem | 1997 | Cancer Chemotherapy and Pharmacology1997，，5： | 1 |
| 20 | Skin Extracellular Matrix Stimulation following Injection of a Hyaluronic Acid–Based Dermal Filler in a Rat Model显示文摘 | Sumit Paliwal Steven Fagien Xiaojian Sun Tyler Holt Thomas Kim Christopher K. Hee Dennis Van Epps Darin J. Messina | 2014 | Plastic and Reconstructive Surgery2014，，6： | 1 |
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