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Tontini GE, Neumann H. Artificial intelligence: Thinking outside the box. Best Pract Res Clin Gastroenterol 2020; 52-53:101720. [PMID: 34172247 DOI: 10.1016/j.bpg.2020.101720] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/01/2020] [Accepted: 12/03/2020] [Indexed: 01/31/2023]
Abstract
Artificial intelligence (AI) for luminal gastrointestinal endoscopy is rapidly evolving. To date, most applications have focused on colon polyp detection and characterization. However, the potential of AI to revolutionize our current practice in endoscopy is much more broadly positioned. In this review article, the Authors provide new ideas on how AI might help endoscopists in the future to rediscover endoscopy practice.
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Affiliation(s)
- Gian Eugenio Tontini
- Gastroenterology and Endoscopy Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Helmut Neumann
- Department of Interdisciplinary Endoscopy, University Hospital Mainz, Mainz, Germany.
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Takedomi H, Tsuruoka N, Takamori A, Miyahara K, Yamanouchi K, Shimamura T, Fujimoto Y, Noda T, Matsunaga T, Takara Y, Shimada F, Hidaka H, Endo H, Anzai K, Fujimoto K. Correlation of Barrett's esophagus with colorectal polyps in Japanese patients: A retrospective chart review. J Gastroenterol Hepatol 2019; 34:1160-1165. [PMID: 30667560 DOI: 10.1111/jgh.14610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 01/09/2019] [Accepted: 01/17/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Barrett's esophagus and colorectal polyps have several overlapping risk factors. Whereas several reports in Western countries have indicated a close relationship between Barrett's esophagus and colorectal polyps, the relationship between these two diseases remains unclear in Japan. This study was performed to determine whether the prevalence of Barrett's esophagus is related to that of colorectal polyps in Japanese patients. METHODS The present retrospective chart review included 1582 Japanese patients who underwent both total colonoscopy and esophagogastroduodenoscopy from January 2010 to December 2016. The data on colorectal polyps and Barrett's esophagus were obtained from the endoscopic findings. The medical record of each patient was checked for age, sex, body mass index, smoking, alcohol drinking, use of acid suppression agents, and comorbidities including a history of diabetes, ischemic heart disease, gastroesophageal reflux disease, hiatal hernia, and Helicobacter pylori infection. RESULTS Colorectal polyps were detected in 789 of the 1582 patients (49.9%). Barrett's esophagus was detected in 233 patients (14.7%), and most cases of Barrett's esophagus (n = 229) were classified as short-segment Barrett's esophagus. Colorectal polyps were more frequent in patients with than without Barrett's esophagus (odds ratio, 1.79; 95% confidence interval, 1.31-2.46; P < 0.001). In addition to Barrett's esophagus, the data indicated that old age, male sex, obesity, smoking, alcohol drinking, diabetes mellitus, and ischemic heart disease were independent risk factors for colorectal polyps. CONCLUSIONS The present study revealed the correlation between the prevalence of Barrett's esophagus and colorectal polyps in Japanese patients.
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Affiliation(s)
- Hironobu Takedomi
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan.,Department of Internal Medicine, Saiseikai Karatsu Hospital, Saga, Japan.,Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Nanae Tsuruoka
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan.,Department of Internal Medicine, Saiseikai Karatsu Hospital, Saga, Japan.,Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Ayako Takamori
- Clinical Research Center, Saga Medical School, Saga, Japan
| | - Koichi Miyahara
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan
| | - Kohei Yamanouchi
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan.,Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Takuya Shimamura
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan.,Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Yo Fujimoto
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan
| | - Takahiro Noda
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan
| | - Takuya Matsunaga
- Department of Internal Medicine, Saiseikai Karatsu Hospital, Saga, Japan.,Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Yoshimichi Takara
- Department of Internal Medicine, Saiseikai Karatsu Hospital, Saga, Japan.,Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Furitsu Shimada
- Department of Internal Medicine, Saiseikai Karatsu Hospital, Saga, Japan.,Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Hidenori Hidaka
- Department of Internal Medicine, Karatsu Red Cross Hospital, Saga, Japan.,Department of Internal Medicine, Saiseikai Karatsu Hospital, Saga, Japan
| | - Hiroyoshi Endo
- Department of Internal Medicine, Saiseikai Karatsu Hospital, Saga, Japan
| | - Keizo Anzai
- Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
| | - Kazuma Fujimoto
- Departments of Internal Medicine and Clinical Research Center, Saga Medical School, Saga, Japan
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Retinoic Acid Receptor α Knockdown Suppresses the Tumorigenicity of Esophageal Carcinoma via Wnt/β-catenin Pathway. Dig Dis Sci 2018; 63:3348-3358. [PMID: 30155836 DOI: 10.1007/s10620-018-5254-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/16/2018] [Indexed: 12/13/2022]
Abstract
BACKGROUND Aberrant expression of retinoic acid receptor α (RARα) was correlated with diverse carcinomas such as acute promyelocytic leukemia and colorectal carcinoma. Nevertheless, the function and mechanism of RARα in esophageal carcinoma (EC) remain unclear. AIM To investigate the expression of RARα in EC and its effect in the tumorigenesis of EC. METHODS AND RESULTS In immunohistochemistry study, RARα was overexpressed in human EC tissues, and its overexpression was closely related to the pathological differentiation, lymph node metastasis, and clinical stages in EC patients. Functionally, RARα knockdown suppressed the proliferation and metastasis of EC cells through downregulating the expression of PCNA, Ki67, MMP7, and MMP9, as well as enhanced drug susceptibility of EC cells to 5-fluorouracil and cisplatin. Mechanistically, RARα knockdown inhibited the activity of Wnt/β-catenin pathway through reducing the phosphorylation level of GSK3β at Ser-9 and inducing phosphorylation level at Tyr-216, which resulted in downregulation of its downstream targets such as MMP7, MMP9, and P-gP. CONCLUSIONS Our results demonstrated that RARα knockdown suppressed the tumorigenicity of EC via Wnt/β-catenin pathway. RARα might be a potential molecular target for EC clinical therapy.
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