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Ma SZ, Chen HX, Liang ZD, Qi XS. Risk factors for Barrett's esophagus: Recent advances. Shijie Huaren Xiaohua Zazhi 2022; 30:605-613. [DOI: 10.11569/wcjd.v30.i14.605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Esophageal adenocarcinoma (EAC) is the most common malignant tumor of the esophagus in the West. During the past few decades, its morbidity has been increasing in China. Barrett's esophagus (BE) is defined as the replacement of normal squamous epithelium in the lower esophagus by metaplasia of columnar epithelium. BE is closely related to the occurrence of EAC. Knowledge regarding the risk factors for the occurrence and development of BE is of great significance for early screening and diagnosis of BE and prevention of EAC. In this paper, we review the clinical, demographics-related, lifestyle-related, and medications-related risk factors for BE to provide more valuable scientific evidence for the prevention and treatment of BE.
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Affiliation(s)
- Shao-Ze Ma
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China,Graduate School of Dalian Medical University, Dalian 116044, Liaoning Province, China
| | - Hong-Xin Chen
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China,Graduate School of Liaoning University of Traditional Chinese Medicine, Shenyang 110031, Liaoning Province, China
| | - Zhen-Dong Liang
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
| | - Xing-Shun Qi
- Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang 110840, Liaoning Province, China
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2
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Jia C, Lv X, Liu T, Yang L, Chen H. The Association between Dietary Vitamin C Intake and the Risk of Esophageal Cancer: An Updated Dose-Response Meta-Analysis. Nutr Cancer 2022; 74:3479-3491. [PMID: 35703897 DOI: 10.1080/01635581.2022.2088813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Although some epidemiological studies have reported the associations between vitamin C and risk of esophageal cancer, these results are inconsistent. Therefore, we performed an updated meta-analysis to explore the associations between dietary vitamin C intake and risk of esophageal cancer. We used PubMed, Embase, and the Web of Science to screen all published articles, which yielded 18 papers eligible for data extraction (involving 4,126 cases and 36,902 controls), and then pooled the odds ratios (ORs) and corresponding 95% confidence intervals (CIs) using random-effects model. As we detected the associations in highest category and the lowest type of dietary vitamin C intake, we discovered that dietary vitamin C intake was negatively correlated to the risk of esophageal cancer. The analysis of subgroup showed a significant counter proportion between vitamin C and the risk of ESCC and EAC. Moreover, the dose-analysis indicated that if increasing dietary intake of vitamin C of 50 mg/day, esophageal cancer risk dropped down 10% (OR = 0.81, 95%CI: 0.75-0.87). In summary, our study provides a comprehensive and updated epidemiological evidence to elucidate the relationships between dietary vitamin C and reduction of esophageal cancer risk. Nevertheless, we still need larger case-control and cohort studies to confirm these connections.
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Affiliation(s)
- Chenhao Jia
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaolong Lv
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tianyu Liu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Yang
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Huanwen Chen
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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3
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Nucci D, Marino A, Realdon S, Nardi M, Fatigoni C, Gianfredi V. Lifestyle, WCRF/AICR Recommendations, and Esophageal Adenocarcinoma Risk: A Systematic Review of the Literature. Nutrients 2021; 13:3525. [PMID: 34684526 PMCID: PMC8538904 DOI: 10.3390/nu13103525] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/30/2021] [Accepted: 10/05/2021] [Indexed: 12/12/2022] Open
Abstract
One of the most notable changes in the epidemiology of esophageal cancer (EC) is the rising incidence and prevalence of esophageal adenocarcinoma (EAC) in developed countries. The aim of this systematic review was to collect and summarize all the available evidence regarding lifestyle, diet, and EAC risk. We searched the PubMed and Scopus databases in January 2021 for studies providing information about lifestyle, diet, WCRF/AICR recommendations, and EAC risk; published in English; without a time filter. The Newcastle-Ottawa Scale was used to assess risk of bias. The results are stratified by risk factor. A total of 106 publications were included. Half of the case-control studies were judged as high quality, whilst practically all cohort studies were judged as high quality. Body mass index and waist circumference were associated with increased EAC risk. Physical activity did not appear to have a significant direct role in EAC risk. A diet rich in fruit, vegetables, and whole grains appeared to be more protective than a Western diet. Alcohol does not seem to be related to EAC, whereas smokers, particularly heavy smokers, have an increased risk of EAC. Prevention remains the best option to avert EAC. Comprehensible and easy to follow recommendations should be provided to all subjects. Protocol ID number: CRD-42021228762, no funds received.
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Affiliation(s)
- Daniele Nucci
- Nutritional Support Unit, Veneto Institute of Oncology IOV-IRCCS, Via Gattamelata 64, 35128 Padua, Italy
| | - Alessio Marino
- School of Medicine, Vita-Salute San Raffaele University, Via Olgettina, 60, 20132 Milan, Italy
| | - Stefano Realdon
- Digestive Endoscopy Unit, Veneto Institute of Oncology IOV-IRCCS, Via Gattamelata 64, 35128 Padua, Italy
| | - Mariateresa Nardi
- Nutritional Support Unit, Veneto Institute of Oncology IOV-IRCCS, Via Gattamelata 64, 35128 Padua, Italy
| | - Cristina Fatigoni
- Department of Pharmaceutical Science, University of Perugia, Via del Giochetto 2, 06123 Perugia, Italy
| | - Vincenza Gianfredi
- School of Medicine, Vita-Salute San Raffaele University, Via Olgettina, 60, 20132 Milan, Italy
- CAPHRI Care and Public Health Research Institute, Maastricht University, 6211 Maastricht, The Netherlands
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Filiberti RA, Fontana V, De Ceglie A, Blanchi S, Lacchin T, De Matthaeis M, Ignomirelli O, Cappiello R, Rosa A, D'Onofrio V, Iaquinto G, Conio M. Dietary Habits and Risk of Esophagitis and Barrett's Esophagus: A Multicenter Italian Case-Control Study. Dig Dis Sci 2021; 66:3448-3460. [PMID: 33073332 DOI: 10.1007/s10620-020-06658-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 10/05/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Barrett's esophagus (BE) and esophagitis share potentially modifiable risk factors such as obesity, smoking, and alcohol. The role of diet on BE and esophagitis is still debated. AIMS The objective of this study was to examine the association between some dietary habits and the risk of BE and esophagitis in Italy. METHODS A multicenter case-control study involving 1285 individuals was carried out in 12 areas. Patients with a new diagnosis of BE (320) or esophagitis (359) and a group of endoscopic controls (606) were included. Information on personal history and dietary habits was collected using a structured questionnaire. RESULTS No clear monotonic significant dose-response relationship was found for most of the considered food items. Nevertheless, the most extreme consumption category of red meat, cold cuts, dairy products, and fried foods showed esophagitis risk excesses varying from 19 to 49%. A higher fat rich diet seemed to increase risk by 49% for BE and 94% for esophagitis. A downward tendency in esophagitis (- 27%) and BE risk (- 20%) was found associated with higher frequency of fresh fruit intake. In addition, a statistically significant twofold increased risk for both BE and esophagitis was found for subjects eating late evening snacks more than once every three days in comparison with the lowest intake category (no consumption). CONCLUSIONS BE and esophagitis patients appeared to be more likely than controls to follow a diet rich in fats and poor in fruit and vegetables. Late evening snacks were found to be associated with both disorders.
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Affiliation(s)
- Rosa Angela Filiberti
- Clinical Epidemiology, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 16132, Genoa, Italy.
| | - Vincenzo Fontana
- Clinical Epidemiology, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 16132, Genoa, Italy
| | - Antonella De Ceglie
- Gastroenterology, General Hospital, Via Giovanni Borea 56, 18038, Sanremo, IM, Italy
| | - Sabrina Blanchi
- Gastroenterology, General Hospital, Via Giovanni Borea 56, 18038, Sanremo, IM, Italy
| | - Teresa Lacchin
- Policlinico San Giorgio, Gastroenterology, Pordenone, Italy
| | - Marina De Matthaeis
- Gastroenterology, General Hospital, Via Giovanni Borea 56, 18038, Sanremo, IM, Italy
| | - Orazio Ignomirelli
- IRCCS CROB, Digestive Endoscopy, Strada Provinciale di Piano del Conte, 85028, Rionero in Vulture, PZ, Italy
| | - Roberta Cappiello
- Gastroenterology, S. Maria degli Angeli Hospital, Via Montereale 24, 33170, Pordenone, Italy
| | - Alessandra Rosa
- Clinical Epidemiology, IRCCS Ospedale Policlinico San Martino, Largo R. Benzi, 16132, Genoa, Italy
| | - Vittorio D'Onofrio
- Gastroenterology and Digestive Endoscopy, S. G. Moscati Hospital, Contrada Amoretta, 83100, Avellino, Italy
| | - Gaetano Iaquinto
- Divisione di Gastroenterologia, Clinica Santa Rita, Via Appia, 83042, Atripalda, AV, Italy
| | - Massimo Conio
- Gastroenterology, General Hospital, Via Giovanni Borea 56, 18038, Sanremo, IM, Italy
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Li K, Zhang B. The association of dietary β-carotene and vitamin A intake on the risk of esophageal cancer: a meta-analysis. REVISTA ESPANOLA DE ENFERMEDADES DIGESTIVAS 2021; 112:620-626. [PMID: 32543872 DOI: 10.17235/reed.2020.6699/2019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
BACKGROUND AND PURPOSE dietary β-carotene and vitamin A intake have shown some potential effect in the development of esophageal cancer. This meta-analysis was performed to investigate the association of β-carotene and vitamin A intake on the risk of esophageal cancer. METHODS the PubMed, Embase, Web of Science and Wanfang Med online databases were systematically searched to collect the relevant articles regarding the impact of β-carotene and vitamin A intake on esophageal cancer risk. Pooled odds ratios (OR) with 95 % confidence intervals (CI) were combined using the Review Manager Version 5.3 software. RESULTS this meta-analysis included 14 articles. The highest category of β-carotene intake may significantly reduce the risk of esophageal cancer compared with the lowest category (OR = 0.62, 95 % CI = 0.50-0.77). Similar significant results were found in American and European populations but not in other populations with β-carotene intake. An inverse association was found between vitamin A intake and esophageal cancer risk (OR = 0.79, 95 % CI = 0.63-0.99). No potential publication bias was detected. CONCLUSIONS our study suggested that dietary β-carotene and vitamin A intake may reduce the risk of esophageal cancer. More relevant studies are needed to further explore this association, as there were some limitations in our analysis.
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Affiliation(s)
- Kang Li
- Gastroenterology, Hexian Memorial Affiliated Hospital of Southern Medical University, China
| | - Bo Zhang
- Oncology, Hexian Memorial Affiliated Hospital of Southern Medical University, China
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6
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Zhang M, Hou ZK, Huang ZB, Chen XL, Liu FB. Dietary and Lifestyle Factors Related to Gastroesophageal Reflux Disease: A Systematic Review. Ther Clin Risk Manag 2021; 17:305-323. [PMID: 33883899 PMCID: PMC8055252 DOI: 10.2147/tcrm.s296680] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/17/2021] [Indexed: 01/30/2023] Open
Abstract
We performed this review to clarify which dietary and lifestyle factors are related to gastroesophageal reflux disease. Through a systematic search of the PubMed, EMBASE, China National Knowledge Infrastructure (CNKI), and Chinese BioMedical Literature (CBM) databases, we identified articles with clear definitions of GERD, including nonerosive gastroesophageal reflux disease (NERD), reflux esophagitis (RE) and Barrett’s esophagus (BE), that included dietary and lifestyle factors as independent factors affecting the onset of GERD (expressed as odds ratios (ORs) or relative risks (RRs) and 95% confidence intervals (CIs)). Due to heterogeneity among the studies, we used descriptive statistical analyses to analyze and synthesize each outcome based on the disease type. In total, 72 articles were included, conducted in ten Western countries (26 articles in total) and nine Eastern countries (46 articles in total). We categorized dietary factors into 20 items and lifestyle factors into 11 items. GERD is related to many irregular dietary and lifestyle habits (such as a habit of midnight snacking: OR=5.08, 95% CI 4.03–6.4; skipping breakfast: OR=2.7, 95% CI 2.17–3.35; eating quickly: OR=4.06, 95% CI 3.11–5.29; eating very hot foods: OR=1.81, 95% CI 1.37–2.4; and eating beyond fullness: OR=2.85, 95% CI 2.18–3.73). Vegetarian diets (consumption of nonvegetarian food (no/yes); OR=0.34, 95% CI 0.211–0.545) and no intake of meat (OR=0.841, 95% CI 0.715–0.990) were negatively related to GERD, while meat (daily meat, fish, and egg intake: OR=1.088, 95% CI 1.042-1.135) and fat (high–fat diet: OR=7.568, 95% CI 4.557–8.908) consumption were positively related to GERD. An interval of less than three hours between dinner and bedtime (OR=7.45, 95% CI 3.38–16.4) was positively related to GERD, and proper physical exercise (physical exercise >30 minutes (>3 times/week): OR=0.7, 95% CI 0.6–0.9) was negatively correlated with GERD. Smoking (OR=1.19, 95% CI 1.12–1.264), alcohol consumption (OR=1.278, 95% CI 1.207–1.353) and mental state (poor mental state: OR=1.278, 95% CI 1.207–1.353) were positively correlated with GERD. RE (vitamin C: OR=0.46, 95% CI=0.24–0.90) and BE (vitamin C: OR=0.44,95% CI 0.2-0.98; vitamin E: OR=0.46, 95% CI 0.26–0.83) were generally negatively correlated with antioxidant intake. In conclusion, many dietary and lifestyle factors affect the onset of GERD, and these factors differ among regions and disease types. These findings need to be further confirmed in subsequent studies.
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Affiliation(s)
- Mei Zhang
- Graduate College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Zheng-Kun Hou
- Gastroenterology Department, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Zhi-Bang Huang
- Graduate College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Xin-Lin Chen
- Department of Preventive Medicine and Health Statistics, College of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Feng-Bin Liu
- Gastroenterology Department, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.,Baiyun Hospital of the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
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7
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Ooi GJ, Browning A, Hii MW, Read M. Perioperative screening, management, and surveillance of Barrett's esophagus in bariatric surgical patients. Ann N Y Acad Sci 2020; 1481:224-235. [PMID: 32794237 DOI: 10.1111/nyas.14441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 06/06/2020] [Accepted: 06/24/2020] [Indexed: 12/28/2022]
Abstract
Obesity is a strong risk factor for Barrett's esophagus (BE), the only proven precursor lesion to esophageal adenocarcinoma (EAC). Bariatric surgery is currently the only reliable treatment that achieves long-term sustained weight loss; however, it can markedly affect the development of de novo BE, and the progression or regression of existing BE. Bariatric procedures may also have implications on future surgical management of any consequent EAC. In this review, we examine the current evidence and published guidelines for BE in bariatric surgery. Current screening practices before bariatric surgery vary substantially, with conflicting recommendations from bariatric societies. If diagnosed, the presence of BE may alter the type of bariatric procedure. A selective screening approach prevents unnecessary endoscopy; however, there is poor symptom correlation with disease. Studies suggest that sleeve gastrectomy predisposes patients to gastroesophageal reflux and de novo BE. Conversely, Roux-en-Y gastric bypass is associated with decreased reflux and potential improvement or resolution of BE. There are currently no guidelines addressing the surveillance for BE following bariatric surgery. BE is an important consideration in the management of bariatric surgical patients. Evidence-based recommendations are required to guide procedure selection and postoperative surveillance.
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Affiliation(s)
- Geraldine J Ooi
- Department of Surgery, Central Clinical School, Monash University, Prahran, Victoria, Australia
| | - Alison Browning
- Department of Upper Gastrointestinal and Hepatobiliary Surgery, St. Vincent's Hospital, Fitzroy, Victoria, Australia
| | - Michael W Hii
- Department of Upper Gastrointestinal and Hepatobiliary Surgery, St. Vincent's Hospital, Fitzroy, Victoria, Australia.,Department of Surgery, the University of Melbourne, St. Vincent's Hospital, Fitzroy, Victoria, Australia
| | - Matthew Read
- Department of Upper Gastrointestinal and Hepatobiliary Surgery, St. Vincent's Hospital, Fitzroy, Victoria, Australia.,Department of Surgery, the University of Melbourne, St. Vincent's Hospital, Fitzroy, Victoria, Australia
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Schlottmann F, Dreifuss NH, Patti MG. Obesity and esophageal cancer: GERD, Barrett´s esophagus, and molecular carcinogenic pathways. Expert Rev Gastroenterol Hepatol 2020; 14:425-433. [PMID: 32441160 DOI: 10.1080/17474124.2020.1764348] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
INTRODUCTION Increases in the rates of esophageal adenocarcinoma (EAC) have paralleled rises in the prevalence of overweight and obesity. Despite not being fully understood, obesity-related EAC seems to have different carcinogenic pathways. AREAS COVERED This comprehensive review will thoroughly evaluate the current literature, describing the underlying mechanisms that help understanding the strong association between obesity and esophageal cancer. EXPERT COMMENTARY The risk of esophageal cancer among obese individuals could be partially explained by several factors: high prevalence of GERD; linear association between central adiposity and Barrett´s esophagus development; low levels of adiponectin and high levels of leptin that alter cell proliferation processes; insulin-resistant state that creates a tumorigenesis environment; and changes in the esophageal microbiota due to unhealthy dietary habits that promote carcinogenesis. In addition, a large proportion of obese patients are undergoing sleeve gastrectomy which can worsen GERD or cause de novo reflux, esophagitis, and Barrett´s metaplasia.
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Affiliation(s)
| | - Nicolás H Dreifuss
- Department of Surgery, Hospital Alemán of Buenos Aires , Buenos Aires, Argentina
| | - Marco G Patti
- Department of Medicine and Surgery, University of North Carolina , Chapel Hill, NC, USA
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9
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Increased total iron and zinc intake and lower heme iron intake reduce the risk of esophageal cancer: A dose-response meta-analysis. Nutr Res 2018; 59:16-28. [DOI: 10.1016/j.nutres.2018.07.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 05/03/2018] [Accepted: 07/10/2018] [Indexed: 01/09/2023]
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10
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Kresty LA, Fromkes JJ, Frankel WL, Hammond CD, Seeram NP, Baird M, Stoner GD. A phase I pilot study evaluating the beneficial effects of black raspberries in patients with Barrett's esophagus. Oncotarget 2018; 9:35356-35372. [PMID: 30450163 PMCID: PMC6219678 DOI: 10.18632/oncotarget.10457] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 05/23/2016] [Indexed: 12/11/2022] Open
Abstract
Black raspberries inhibit a broad range of cancers in preclinical models which has led to clinical evaluations targeting premalignant lesions of the colon, oral cavity and esophagus. A phase I pilot study was conducted in twenty Barrett's esophagus (BE) patients to investigate the effect of lyophilized black raspberries (LBR) on urinary metabolites and markers of lipid peroxidation, DNA damage and tissue markers of cellular proliferation, detoxification, and inflammation. Surveys, biopsies, blood and urine samples were collected before and after 6 months of LBR treatment (32 or 45 g). LBR significantly reduced urinary excretion of 8-epi-prostaglandin F2α, a marker of lipid peroxidation linked to oxidative stress and free radical damage. Urinary levels of the ellagitannin metabolites, urolithin A-glucuronide, urolithin A-sulfate and dimethylellagic acid glucuronide were significantly increased following 12 and 26 weeks of LBR consumption and may prove useful as indicators of compliance in future clinical studies. Immunohistochemical staining of BE biopsies following LBR treatment showed significant increases in mean GST-pi levels, with 55.6% of subjects responding favorably. In summary, LBR significantly decreased urinary lipid peroxidation levels and significantly increased GST-pi, a marker of detoxification, in BE epithelium. Still, LBR may need to be formulated differently, administered at higher concentrations or multiple times a day to increase efficacy.
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Affiliation(s)
- Laura A Kresty
- Division of Hematology & Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - John J Fromkes
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Wendy L Frankel
- Department of Pathology, The Ohio State University, Columbus, Ohio, USA
| | - Cynthia D Hammond
- Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Navindra P Seeram
- Department of Biomedical and Pharmaceutical Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island, USA
| | - Maureen Baird
- Department of Pathology, The Ohio State University, Columbus, Ohio, USA
| | - Gary D Stoner
- Division of Hematology & Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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11
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Association between Dietary Vitamin E Intake and Esophageal Cancer Risk: An Updated Meta-Analysis. Nutrients 2018; 10:nu10070801. [PMID: 29933640 PMCID: PMC6073499 DOI: 10.3390/nu10070801] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 06/17/2018] [Accepted: 06/18/2018] [Indexed: 12/13/2022] Open
Abstract
Epidemiological studies have provided ambiguous evidence on the association between vitamin E and esophageal cancer risk. To resolve this controversy, we performed this meta-analysis. The literature was searched by using Excerpta Medica Database (EMBASE), PubMed, the Web of Science, and the Cochrane Library from the inception to April 2018. A random effect model was utilized to calculate the odds ratio (OR) with the 95% confidence interval (95% CI). Twelve articles reporting 14 studies involving 3013 cases and 11,384 non-cases were included. By comparing the highest category with the lowest category of dietary vitamin E intake, we found that dietary vitamin E intake was inversely related to esophageal cancer risk (OR = 0.47, 95% CI: 0.36–0.60). Subgroup analysis revealed that dietary vitamin E intake had a significantly negative association with both the esophageal squamous cell carcinoma risk (OR = 0.29, 95% CI: 0.18–0.44) and the esophageal adenocarcinoma risk (OR = 0.66, 95% CI: 0.49–0.88). No study significantly affected the findings in the sensitivity analysis. Publication bias was discovered, however, the OR (95% CI) remained unchanged after the trim-and-fill analysis. This meta-analysis showed that the higher dietary vitamin E intake is associated with a lower esophageal cancer risk. However, the association still needs to be upheld by more large-scaled randomized controlled trials and prospective studies.
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12
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Kang JHE, Luben R, Alexandre L, Hart AR. Dietary antioxidant intake and the risk of developing Barrett's oesophagus and oesophageal adenocarcinoma. Br J Cancer 2018; 118:1658-1661. [PMID: 29780162 PMCID: PMC6008398 DOI: 10.1038/s41416-018-0113-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 03/22/2018] [Accepted: 04/17/2018] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND We investigated in a cohort study, for the first time using 7-day food diaries (7-DFDs), for age-dependent inverse associations with antioxidants, which have anti-carcinogenic properties, and development of Barrett's oesophagus (BO) and oesophageal adenocarcinoma (OAC). METHODS A total of 24,068 well individuals completed 7-DFDs and donated blood. Vitamins C and E, carotenes, zinc and selenium intakes, and plasma vitamin C were measured. Participants were monitored for 15 years for BO and OAC. Hazard ratios (HRs) were estimated for: quintiles of intake and in participants younger and >=65 years at recruitment, the midpoint of BO peak prevalence. RESULTS A total of 197 participants developed BO and 74 OAC. There were no significant associations between antioxidants and BO or OAC in the whole cohort or if >65 years at recruitment. In participants <65 years, for BO, there was an inverse trend across plasma vitamin C quintiles (trend HR = 0.82; 95% CI = 0.71-0.96, P = 0.01), OAC for plasma vitamin C (trend HR = 0.58; 95% CI = 0.37-0.92, P = 0.02) and for dietary vitamins C and E (trend HR = 0.71 95% CI = 0.51-0.99, P = 0.04 and trend HR = 0.70; 95% CI = 0.51-0.96; P = 0.03). CONCLUSIONS Data supports a role for dietary antioxidants prevent BO and OAC, perhaps at the earlier stages of carcinogenesis.
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Affiliation(s)
- James H-E Kang
- Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, NR4 7UY, UK. .,Norwich Medical School, University of East Anglia, Norwich, NR4 7UQ, UK.
| | - Robert Luben
- Strangeways Research Laboratories, Wort's Causeway, Cambridge, CB1 8RN, UK
| | - Leo Alexandre
- Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, NR4 7UY, UK.,Norwich Medical School, University of East Anglia, Norwich, NR4 7UQ, UK
| | - Andrew R Hart
- Norfolk and Norwich University Hospital NHS Foundation Trust, Norwich, NR4 7UY, UK.,Norwich Medical School, University of East Anglia, Norwich, NR4 7UQ, UK
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13
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Kaakoush NO. Microbiome and Esophageal Adenocarcinoma-Letter. Cancer Res 2018; 78:1574. [PMID: 29490951 DOI: 10.1158/0008-5472.can-17-3791] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 01/03/2018] [Accepted: 01/10/2018] [Indexed: 11/16/2022]
Affiliation(s)
- Nadeem O Kaakoush
- School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia.
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14
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Ullah H, Liu G, Yousaf B, Ali MU, Abbas Q, Munir MAM, Mian MM. Developmental selenium exposure and health risk in daily foodstuffs: A systematic review and meta-analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 149:291-306. [PMID: 29268101 DOI: 10.1016/j.ecoenv.2017.11.056] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 11/19/2017] [Accepted: 11/22/2017] [Indexed: 06/07/2023]
Abstract
Selenium (Se) is a trace mineral and an essential nutrient of vital importance to human health in trace amounts. It acts as an antioxidant in both humans and animals, immunomodulator and also involved in the control of specific endocrine pathways. The aim of this work is to provide a brief knowledge on selenium content in daily used various foodstuffs, nutritional requirement and its various health consequences. In general, fruits and vegetables contain low content of selenium, with some exceptions. Selenium level in meat, eggs, poultry and seafood is usually high. For most countries, cereals, legumes, and derivatives are the major donors to the dietary selenium intake. Low level of selenium has been related with higher mortality risk, dysfunction of an immune system, and mental failure. Selenium supplementation or higher selenium content has antiviral outcomes and is necessary for effective reproduction of male and female, also decreases the threat of chronic disease (autoimmune thyroid). Generally, some advantages of higher content of selenium have been shown in various potential studies regarding lung, colorectal, prostate and bladder cancers risk, nevertheless results depicted from different trials have been diverse, which perhaps indicates the evidence that supplementation will merely grant advantage if the intakes of a nutrient is deficient. In conclusion, the over-all people should be advised against the usage of Se supplements for prevention of cardiovascular, hepatopathies, or cancer diseases, as advantages of Se supplements are still ambiguous, and their haphazard usage could result in an increased Se toxicity risk. The associations among Se intake/status and health, or disease risk, are complicated and need exposition to notify medical practice, to improve dietary recommendations, and to develop adequate communal health guidelines.
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Affiliation(s)
- Habib Ullah
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi 710075, China.
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Muhammad Ubaid Ali
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Qumber Abbas
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Mehr Ahmed Mujtaba Munir
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
| | - Md Manik Mian
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, PR China.
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Can We Use Diet to Effectively Treat Esophageal Disease? A Review of the Current Literature. Curr Gastroenterol Rep 2017; 19:38. [PMID: 28730507 DOI: 10.1007/s11894-017-0578-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
PURPOSE OF REVIEW Esophageal diseases represent a wide variety of conditions affecting esophageal anatomy, physiology, and motility. Therapy focuses on pharmacotherapy and endoscopic or surgical management. Dietary therapy can be considered in management algorithms for specific esophageal diseases. This review focuses on outlining the literature related to dietary therapy in gastroesophageal reflux disease, eosinophilic esophagitis, Barrett's esophagus, and esophageal adenocarcinoma. RECENT FINDINGS Currently, data are strongest for dietary manipulation in eosinophilic esophagitis, specifically the six-food elimination diet. Dietary effects on gastroesophageal reflux disease are less clear, though newer research indicates that increased fiber with reduction in simple sugar intake may improve symptoms. In terms of Barrett's esophagus and esophageal adenocarcinoma, antioxidant intake may affect carcinogenesis, though to an unknown degree. Outcomes data regarding dietary manipulation for the management of esophageal diseases is heterogeneous. Given the rising interest in non-pharmacological treatment options for these patients, continued research is warranted.
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Effects of alcohol consumption, cigarette smoking, and betel quid chewing on upper digestive diseases: a large cross-sectional study and meta-analysis. Oncotarget 2017; 8:78011-78022. [PMID: 29100443 PMCID: PMC5652832 DOI: 10.18632/oncotarget.20831] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 08/26/2017] [Indexed: 02/06/2023] Open
Abstract
Cigarette smoking is a well-known risk factor of upper digestive diseases. Findings on alcohol's effect on these diseases are inconsistent and with the exception of its association with esophageal cancer, little is known about betel quid chewing. This study investigated the association between use of these three substances and upper digestive diseases. We collected data from 9,275 patients receiving upper endoscopies between April 2008 and December 2013. Polynomial regressions were used to analyze the association between risk factors and diseases of the esophagus, stomach and duodenum. Meta-analysis for use of these substances and esophageal diseases was also performed. Participants who simultaneously consumed cigarettes, alcohol and betel quid had a 17.28-fold risk of esophageal cancer (95% CI = 7.59-39.33), 2.99-fold risk of Barrette's esophagus (95% CI = 2.40-4.39), 1.60-fold risk of grade A-B erosive esophagitis (95% CI = 1.29-2.00), 2.00-fold risk of gastric ulcer (95% CI = 1.52-2.63), 2.12-fold risk of duodenitis (95% CI = 1.55-2.89) and 1.29-fold risk of duodenal ulcer (95% CI = 1.01-1.65). Concurrent consumption of more substances was associated with significantly higher risk of developing these diseases. Meta-analysis also revealed use of the three substances came with a high risk of esophageal diseases. In conclusions, cigarette smoking, alcohol drinking and betel quid chewing were associated with upper digestive tract diseases.
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17
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Protective Effect of Dietary Calcium Intake on Esophageal Cancer Risk: A Meta-Analysis of Observational Studies. Nutrients 2017; 9:nu9050510. [PMID: 28524093 PMCID: PMC5452240 DOI: 10.3390/nu9050510] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 04/27/2017] [Accepted: 05/10/2017] [Indexed: 12/12/2022] Open
Abstract
Although several epidemiological studies have investigated the association between dietary calcium intake and the risk of esophageal cancer, the results are inconsistent. This study aimed to make a comprehensive evaluation regarding the association between calcium intake and risk of esophageal cancer through a meta-analysis approach. We searched for all relevant articles from the inception to April 2017, using PUBMED, EMBASE, and Web of Knowledge. The pooled odds ratio (ORs) with the 95% confidence interval (95% CI) for the highest versus the lowest categories of calcium intake was calculated using a Mantel–Haenszel fixed-effect model. In total, 15 articles reporting 17 studies including 3396 esophageal cancer cases and 346,815 controls were selected for the meta-analysis. By comparing the highest vs. the lowest levels of dietary calcium intake, we found that dietary calcium intake was inversely associated with the risk of esophageal cancer (OR = 0.80, 95% CI: 0.71–0.91, I2 = 33.6%). The subgroup analysis indicated that the protective function of dietary calcium intake were observed in esophageal squamous cell cancer, but not in esophageal adenocarcinoma in the studies conducted in Asia, but not those in Europe and America. In conclusion, our results suggest that higher dietary calcium intake is associated with a lower risk of esophageal cancer—especially esophageal squamous cell cancer—in Asian populations, though more data from prospective cohort studies are needed.
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18
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Kaakoush NO, Lecomte V, Maloney CA, Morris MJ. Cross-talk among metabolic parameters, esophageal microbiota, and host gene expression following chronic exposure to an obesogenic diet. Sci Rep 2017; 7:45753. [PMID: 28362001 PMCID: PMC5374643 DOI: 10.1038/srep45753] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 03/06/2017] [Indexed: 12/29/2022] Open
Abstract
Unhealthy diets, and ensuing weight gain, predispose individuals to the development of esophageal adenocarcinoma. We examined the effect of chronic high fat diet (HFD) on the esophageal microbiota of Sprague Dawley rats using Illumina MiSeq amplicon sequencing (V4, 515 F/806 R) and on esophageal expression of IL18, PTGS2, PPARA, FFAR3, and CRAT. The relationships among metabolic parameters, esophageal microbiota, and host gene expression were determined. We observed a significant difference between the upper and lower esophageal microbiota in control fed rats, emphasized by enrichment of Lactobacillus species in the lower esophagus. Rats on HFD gained significantly more fat and had reduced insulin sensitivity. Diet type significantly affected the esophageal microbiota, with Clostridium sensu stricto being enriched in both upper and lower segments of HFD fed rats. Of interest, bacterial pathways related to carotenoid biosynthesis were significantly decreased in the lower esophagus of HFD fed rats. We observed strong correlations between metabolic parameters, the esophageal microbial profiles, and host esophageal gene expression. In particular, Fusobacterium, Rothia, and Granulicatella showed consistent correlations across a range of metabolic and gene markers. Our data indicates that unhealthy diets can significantly alter the esophageal microbiota, and enrich for bacterial species previously associated with chronic gastrointestinal diseases.
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Affiliation(s)
- Nadeem O Kaakoush
- School of Medical Sciences, UNSW Australia, Sydney 2052, NSW, Australia
| | - Virginie Lecomte
- School of Medical Sciences, UNSW Australia, Sydney 2052, NSW, Australia
| | | | - Margaret J Morris
- School of Medical Sciences, UNSW Australia, Sydney 2052, NSW, Australia
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19
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Gatenby P, Bhattacharjee S, Wall C, Caygill C, Watson A. Risk stratification for malignant progression in Barrett’s esophagus: Gender, age, duration and year of surveillance. World J Gastroenterol 2016; 22:10592-10600. [PMID: 28082811 PMCID: PMC5192270 DOI: 10.3748/wjg.v22.i48.10592] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/17/2016] [Accepted: 11/28/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To clarify risk based upon segment length, diagnostic histological findings, patient age and year of surveillance, duration of surveillance and gender.
METHODS Patients registered with the United Kingdom Barrett’s Oesophagus Registry from 9 United Kingdom centers were included. The outcome measures were (1) development of all grades of dysplasia; (2) development of high-grade of dysplasia or adenocarcinoma; and (3) development of adenocarcinoma. Prevalent cases and subjects with < 1 year of follow-up were excluded. The covariates examined were segment length, previous biopsy findings, age at surveillance, duration of surveillance, year of surveillance and gender.
RESULTS One thousand and one hundred thirty six patients were included (total 6474 patient-years). Fifty-four patients developed adenocarcinoma (0.83% per annum), 70 developed high-grade dysplasia/adenocarcinoma (1.1% per annum) and 190 developed any grade of dysplasia (3.5% per annum). High grade dysplasia and adenocarcinoma increased with age and duration of surveillance. The risk of low-grade dysplasia development was not dependent on age at surveillance. Segment length and previous biopsy findings were also significant factors for development of dysplasia and adenocarcinoma.
CONCLUSION The risk of development of low-grade dysplasia is independent of age at surveillance, but high-grade dysplasia and adenocarcinoma were more commonly found at older age. Segment length and previous biopsy findings are also markers of risk. This study did not demonstrate stabilisation of the metaplastic segment with prolonged surveillance.
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20
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Kaakoush NO, Morris MJ. The oesophageal microbiome: an unexplored link in obesity-associated oesophageal adenocarcinoma. FEMS Microbiol Ecol 2016; 92:fiw161. [PMID: 27465078 DOI: 10.1093/femsec/fiw161] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2016] [Indexed: 12/12/2022] Open
Abstract
The influence of diets rich in saturated fats and simple sugars on the intestinal microbiota plays a central role in obesity. Being overweight or obese predisposes individuals to several diseases including oesophageal adenocarcinoma (OAC), which develops through a cascade of events starting with gastro-oesophageal reflux disease, progressing to Barrett's oesophagus (BO), and then OAC. A range of mechanisms for the increased risk of OAC in obese individuals have been proposed; however, a role for the oesophageal microbiota has been largely ignored. This is despite the fact that it is clear that the composition of the oesophageal microbiota shifts with the development of OAC. Given the well-established impact that unhealthy diets have on the intestinal microbiota, it is plausible that exposure to unhealthy foods, and the ensuing obesity, would result in an imbalance in the oesophageal microbiota. It is also likely that these changes may mimic the changes observed in the intestinal microbiota (i.e. increase in short-chain fatty acid (SCFA) producers and bile acid biosynthesis). The modulation of SCFAs and bile acids in the oesophagus by diet could promote the transdifferentiation from squamous to intestinal-like columnar cells observed in BO, given that intestinal cells proliferate in the presence of SCFAs.
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Affiliation(s)
- Nadeem O Kaakoush
- School of Medical Sciences, UNSW Australia, Sydney, NSW 2052, Australia
| | - Margaret J Morris
- School of Medical Sciences, UNSW Australia, Sydney, NSW 2052, Australia
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21
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Kalatskaya I. Overview of major molecular alterations during progression from Barrett's esophagus to esophageal adenocarcinoma. Ann N Y Acad Sci 2016; 1381:74-91. [PMID: 27415609 DOI: 10.1111/nyas.13134] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 05/13/2016] [Accepted: 05/19/2016] [Indexed: 12/14/2022]
Abstract
Esophageal adenocarcinoma (EAC) develops in the sequential transformation of normal epithelium into metaplastic epithelium, called Barrett's esophagus (BE), then to dysplasia, and finally cancer. BE is a common condition in which normal stratified squamous epithelium of the esophagus is replaced with an intestine-like columnar epithelium, and it is the most prominent risk factor for EAC. This review aims to impartially systemize the knowledge from a large number of publications that describe the molecular and biochemical alterations occurring over this progression sequence. In order to provide an unbiased extraction of the knowledge from the literature, a text-mining methodology was used to select genes that are involved in the BE progression, with the top candidate genes found to be TP53, CDKN2A, CTNNB1, CDH1, GPX3, and NOX5. In addition, sample frequencies across analyzed patient cohorts at each stage of disease progression are summarized. All six genes are altered in the majority of EAC patients, and accumulation of alterations correlates well with the sequential progression of BE to cancer, indicating that the text-mining method is a valid approach for gene prioritization. This review discusses how, besides being cancer drivers, these genes are functionally interconnected and might collectively be considered a central hub of BE progression.
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Affiliation(s)
- Irina Kalatskaya
- Ontario Institute for Cancer Research, MaRS Centre, Toronto, Ontario, Canada.
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22
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Flavonoids, Flavonoid Subclasses, and Esophageal Cancer Risk: A Meta-Analysis of Epidemiologic Studies. Nutrients 2016; 8:nu8060350. [PMID: 27338463 PMCID: PMC4924191 DOI: 10.3390/nu8060350] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/01/2016] [Accepted: 06/02/2016] [Indexed: 01/26/2023] Open
Abstract
Flavonoids have been suggested to play a chemopreventive role in carcinogenesis. However, the epidemiologic studies assessing dietary intake of flavonoids and esophageal cancer risk have yielded inconsistent results. This study was designed to examine the association between flavonoids, each flavonoid subclass, and the risk of esophageal cancer with a meta-analysis approach. We searched for all relevant studies with a prospective cohort or case-control study design published from January 1990 to April 2016, using PUBMED, EMBASE, and Web of Science. Pooled odds ratios (ORs) were calculated using fixed or random-effect models. In total, seven articles including 2629 cases and 481,193 non-cases were selected for the meta-analysis. Comparing the highest-intake patients with the lowest-intake patients for total flavonoids and for each flavonoid subclass, we found that anthocyanidins (OR = 0.60, 95% CI: 0.49-0.74), flavanones (OR = 0.65, 95% CI: 0.49-0.86), and flavones (OR = 0.78, 95% CI 0.64-0.95) were inversely associated with the risk of esophageal cancer. However, total flavonoids showed marginal association with esophageal cancer risk (OR = 0.78, 95% CI: 0.59-1.04). In conclusion, our study suggested that dietary intake of total flavonoids, anthocyanidins, flavanones, and flavones might reduce the risk of esophageal cancer.
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Association between selenium levels and oesophageal adenocarcinoma risk: evidence from a meta-analysis. Biosci Rep 2016; 36:BSR20160131. [PMID: 27190131 PMCID: PMC4937171 DOI: 10.1042/bsr20160131] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 05/17/2016] [Indexed: 11/17/2022] Open
Abstract
Quantification of the association between selenium and risk of oesophageal adenocarcinoma (OAC) is still conflicting. The purpose of this meta-analysis is to explore the relationship between selenium levels and OAC risk. PubMed and Web of Knowledge were searched for the related articles. Pooled relative risks (RRs) with 95% confidence intervals (CIs) from random effects models were calculated. Sensitivity analysis and publication bias were conducted. Dose-response relationship was assessed by restricted cubic spline and variance-weighted least squares regression analysis. Five articles involving 748 OAC cases were included in this meta-analysis. Pooled results suggest that higher selenium level was not significantly associated with the risk of OAC (summary RRs=1.08, 95% CIs=0.84-1.39, I(2)=0%). Besides, no significant association was found in case-control studies (summary RRs=1.13, 95% CIs=0.84-1.52, I(2)=0%) or cohort studies (summary RRs=0.99, 95% CIs=0.55-1.78, I(2)=32.6%). A linear dose-response relationship was attested that an increase in dietary selenium intake of 10 μg/day is marginally associated with 1% increase in the risk of developing OAC (summary RRs=1.01, 95% CIs=0.99-1.03), but not statistically significant. No publication bias was found. In conclusion, our analysis indicated that a higher selenium level was not significantly associated with the risk of OAC. The relevant further studies are warranted.
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24
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Ireland CJ, Thompson SK, Laws TA, Esterman A. Risk factors for Barrett’s esophagus: a scoping review. Cancer Causes Control 2016; 27:301-23. [DOI: 10.1007/s10552-015-0710-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 12/22/2015] [Indexed: 02/08/2023]
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25
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Feed supplemented with polyphenolic byproduct from olive mill wastewater processing improves the redox status in blood and tissues of piglets. Food Chem Toxicol 2015; 86:319-27. [DOI: 10.1016/j.fct.2015.11.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 10/05/2015] [Accepted: 11/05/2015] [Indexed: 12/25/2022]
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26
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Bo Y, Lu Y, Zhao Y, Zhao E, Yuan L, Lu W, Cui L, Lu Q. Association between dietary vitamin C intake and risk of esophageal cancer: A dose-response meta-analysis. Int J Cancer 2015; 138:1843-50. [PMID: 26355388 DOI: 10.1002/ijc.29838] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 09/01/2015] [Indexed: 12/12/2022]
Affiliation(s)
- Yacong Bo
- Department of Nutrition and Food Hygiene; College of Public Health, Zhengzhou University; Zhengzhou Henan 450001 China
| | - Yan Lu
- The North Hospital of the Ninth People's Hospital of Shanghai City; Shanghai 201999 China
| | - Yan Zhao
- Henan Tumor Hospital; Affiliated Tumor Hospital of Zhengzhou University; Zhengzhou Henan 450003 China
| | - Erjiang Zhao
- Henan Tumor Hospital; Affiliated Tumor Hospital of Zhengzhou University; Zhengzhou Henan 450003 China
| | - Ling Yuan
- Henan Tumor Hospital; Affiliated Tumor Hospital of Zhengzhou University; Zhengzhou Henan 450003 China
| | - Weiquan Lu
- Henan Tumor Hospital; Affiliated Tumor Hospital of Zhengzhou University; Zhengzhou Henan 450003 China
| | - Lingling Cui
- Department of Nutrition and Food Hygiene; College of Public Health, Zhengzhou University; Zhengzhou Henan 450001 China
| | - Quanjun Lu
- Department of Nutrition and Food Hygiene; College of Public Health, Zhengzhou University; Zhengzhou Henan 450001 China
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27
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Wang A, Zhu C, Fu L, Wan X, Yang X, Zhang H, Miao R, He L, Sang X, Zhao H. Citrus Fruit Intake Substantially Reduces the Risk of Esophageal Cancer: A Meta-Analysis of Epidemiologic Studies. Medicine (Baltimore) 2015; 94:e1390. [PMID: 26426606 PMCID: PMC4616874 DOI: 10.1097/md.0000000000001390] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Many epidemiologic studies indicate a potential association between fruit and vegetable intake and various cancers. The purpose of this meta-analysis is to investigate the association between citrus fruit intake and esophageal cancer risk. The authors conducted a comprehensive search on PubMed, EMBASE, and the Cochrane Library from inception until July 2014. Studies presenting information about citrus intake and esophageal cancer were analyzed. The authors extracted the categories of citrus intake, study-specific odds ratio or relative risk, and the P value and associated 95% confidence intervals for the highest versus lowest dietary intake of citrus fruit level. The association was quantified using meta-analysis of standard errors with a random-effects model. Thirteen case-control studies and 6 cohort studies were eligible for inclusion. Citrus intake may significantly reduce risk of esophageal cancer (summary odds ratio = 0.63; 95% confidence interval = 0.52-0.75; P = 0), without notable publication bias (intercept = -0.79, P = 0.288) and with significant heterogeneity across studies (I = 52%). The results from epidemiologic studies suggest an inverse association between citrus fruit intake and esophageal cancer risk. The significant effect is consistent between case-control and cohort studies. Larger prospective studies with rigorous methodology should be considered to validate the association between citrus fruits and esophageal cancer.
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Affiliation(s)
- Anqiang Wang
- From the Department of Liver Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (AW, CZ, LF, XW, XY, HZ, LH, XS, HZ); and Liver Center and The Transplant Institute, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA (RM)
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28
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Realdon S, Antonello A, Arcidiacono D, Dassie E, Cavallin F, Fassan M, Nardi MT, Alberti A, Rugge M, Battaglia G. Adherence to WCRF/AICR lifestyle recommendations for cancer prevention and the risk of Barrett's esophagus onset and evolution to esophageal adenocarcinoma: results from a pilot study in a high-risk population. Eur J Nutr 2015; 55:1563-71. [PMID: 26155779 DOI: 10.1007/s00394-015-0975-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2015] [Accepted: 06/29/2015] [Indexed: 02/07/2023]
Abstract
PURPOSE While adherence to the World Cancer Research Fund (WCRF) guidelines on lifestyle and cancer was recently proven to be associated with an increased risk of esophageal cancer, no investigation has yet been carried out on its role on Barrett's esophagus (BE) development and its progression to esophageal adenocarcinoma (EAC). The primary aim of this study was to evaluate the role of adherence to WCRF lifestyle recommendations in BE onset and progression. The secondary aim was to investigate the association between disease progression and specific aspects of diet and lifestyle. METHODS Established risk factors for BE and EAC development and adherence to WCRF guidelines were assessed in 107 consecutive patients undergoing an upper gastrointestinal endoscopy for symptoms suggesting gastroesophageal reflux (GERD) and a suspected diagnosis of BE/dysplasia on BE. Patients were divided according to histology: those with GERD without metaplasia, with non-dysplastic BE, with low-grade dysplasia, with high-grade dysplasia or with early EAC. The four groups were expressed as an ordered categorical variable of disease progression. An ordered logit model was estimated to identify the independent predictors of disease progression. RESULTS Adherence to WCRF guidelines was identified as independent protective factor (OR 0.51, 95 % CI 0.37-0.67) of disease progression. Disease progression was associated with reduced adherence to guidelines on physical activity (from 48.2 to 5.3 %, p = 0.001), sedentary habits (from 33.3 to 0 %, p = 0.03), fruit consumption (from 37.0 to 5.6 %, p = 0.02) and processed meat consumption (from 51.9 to 10.5 %, p = 0.002). CONCLUSION Adherence to WCRF guidelines has a protective factor in BE onset and its evolution to EAC.
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Affiliation(s)
- Stefano Realdon
- Digestive Endoscopy Unit, Veneto Institute of Oncology IOV - I.R.C.S.S., Via Gattamelata 64, 35128, Padua, Italy.
| | - Alessandro Antonello
- Digestive Endoscopy Unit, Veneto Institute of Oncology IOV - I.R.C.S.S., Via Gattamelata 64, 35128, Padua, Italy
| | - Diletta Arcidiacono
- Venetian Institute for Molecular Medicine, Via Orus 2, 35128, Padua, Italy.,Department of Surgery, Oncology and Gastroenterology, University of Padua, Via Giustiniani 2, 35128, Padua, Italy
| | - Elisa Dassie
- Venetian Institute for Molecular Medicine, Via Orus 2, 35128, Padua, Italy
| | - Francesco Cavallin
- Oncological Surgery Unit, Veneto Institute of Oncology IOV - I.R.C.S.S., Via Gattamelata 64, 35128, Padua, Italy
| | - Matteo Fassan
- Department of Medicine, Surgical Pathology and Cytopathology, University of Padua, Via Giustiniani 2, 35128, Padua, Italy
| | - Maria Teresa Nardi
- Clinical Nutrition Unit, Veneto Institute of Oncology IOV - I.R.C.S.S., Via Gattamelata 64, 35128, Padua, Italy
| | - Alfredo Alberti
- Venetian Institute for Molecular Medicine, Via Orus 2, 35128, Padua, Italy.,Department of Molecular Medicine, University of Padua, Via Giustiniani 2, 35128, Padua, Italy
| | - Massimo Rugge
- Department of Medicine, Surgical Pathology and Cytopathology, University of Padua, Via Giustiniani 2, 35128, Padua, Italy
| | - Giorgio Battaglia
- Digestive Endoscopy Unit, Veneto Institute of Oncology IOV - I.R.C.S.S., Via Gattamelata 64, 35128, Padua, Italy
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Brown CS, Ujiki MB. Risk factors affecting the Barrett's metaplasia-dysplasia-neoplasia sequence. World J Gastrointest Endosc 2015; 7:438-445. [PMID: 25992184 PMCID: PMC4436913 DOI: 10.4253/wjge.v7.i5.438] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 10/27/2014] [Accepted: 01/20/2015] [Indexed: 02/05/2023] Open
Abstract
Esophageal adenocarcinoma has the fastest growing incidence rate of any cancer in the United States, and currently carries a very poor prognosis with 5 years relative survival rates of less than 15%. Current curative treatment options are limited to esophagectomy, a procedure that suffers from high complication rates and high mortality rates. Metaplasia of the esophageal epithelium, a condition known as Barrett’s esophagus (BE), is widely accepted as the precursor lesion for adenocarcinoma of the esophagus. Recently, radio-frequency ablation has been shown to be an effective method to treat BE, although there is disagreement as to whether radio-frequency ablation should be used to treat all patients with BE or whether treatment should be reserved for those at high risk for progressing to esophageal adenocarcinoma while continuing to endoscopically survey those with low risk. Recent research has been targeted towards identifying those at greater risk for progression to esophageal adenocarcinoma so that radio-frequency ablation therapy can be used in a more targeted manner, decreasing the total health care cost as well as improving patient outcomes. This review discusses the current state of the literature regarding risk factors for progression from BE through dysplasia to esophageal adenocarcinoma, as well as the current need for an integrated scoring tool or risk stratification system capable of differentiating those patients at highest risk of progression in order to target these endoluminal therapies.
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Rameez MH, Mayberry JF. Epidemiology and risk factors for Barrett's oesophagus. Br J Hosp Med (Lond) 2015; 76:138-41. [DOI: 10.12968/hmed.2015.76.3.138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - John F Mayberry
- Consultant Gastroenterologist in the Department of Digestive Diseases, University Hospitals of Leicester NHS Trust, Leicester LE5 4PW
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Petrick JL, Li N, McClain KM, Steck SE, Gammon MD. Dietary Risk Reduction Factors for the Barrett's Esophagus-Esophageal Adenocarcinoma Continuum: A Review of the Recent Literature. Curr Nutr Rep 2015; 4:47-65. [PMID: 25750765 PMCID: PMC4349493 DOI: 10.1007/s13668-014-0108-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Esophageal adenocarcinoma (EA) incidence is among the most rapidly increasing of any cancer type in the U.S., and prognosis is poor. Prevalence of the potential precursor lesion, Barrett's esophagus (BE), is also increasing. Candidates for safe and effective risk reduction strategies are needed, potentially including dietary components. In this qualitative review, we summarize recently published epidemiologic studies, in context of earlier work, on dietary intake and BE-EA outcomes. Potential cohort study/intervention trial candidates which could be increased to reduce BE-EA development include intake of: (1) fruits and vegetables; vegetables; fruit (EA only); (2) β-carotene and vitamins C and E; (3) folate (EA only); and (4) total fiber (EA only). Also, (5) red and processed meat intake could be targeted for dietary reduction/omission to reduce EA development. Few dietary constituents have been evaluated among EA patients to examine associations with mortality, thus interventions conducted among EA patients are premature.
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Affiliation(s)
- Jessica L. Petrick
- Department of Epidemiology, 135 Dauer Drive, University of North Carolina, Chapel Hill, NC, 27599, phone: 919-966-7430, fax: 919-966-2089
| | - Nan Li
- Department of Epidemiology, 135 Dauer Drive, University of North Carolina, Chapel Hill, NC, 27599, phone: 919-966-7430, fax: 919-966-2089
| | - Kathleen M. McClain
- Department of Epidemiology, 135 Dauer Drive, University of North Carolina, Chapel Hill, NC, 27599, phone: 919-966-7430, fax: 919-966-2089
| | - Susan E. Steck
- Department of Epidemiology and Biostatistics, 915 Greene Street, University of South Carolina, Columbia, SC 29208; phone: 803-576-5638, fax: 803-576-5624
| | - Marilie D. Gammon
- Department of Epidemiology, 135 Dauer Drive, CB# 7435, University of North Carolina, Chapel Hill, NC, 27599-7435, phone: 919-966-7421, 919-966-2089
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Brown CS, Lapin B, Wang C, Goldstein JL, Linn JG, Denham W, Haggerty SP, Talamonti MS, Howington JA, Carbray J, Ujiki MB. Reflux control is important in the management of Barrett's Esophagus: results from a retrospective 1,830 patient cohort. Surg Endosc 2015; 29:3528-34. [PMID: 25676204 DOI: 10.1007/s00464-015-4103-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 01/27/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND It is unknown whether acid/reflux control prevents progression in Barrett's esophagus. In this study, we investigate whether medical or surgical control of reflux is associated with a decreased risk of progression to dysplasia/esophageal adenocarcinoma. METHODS We retrospectively collected and analyzed data from a cohort of Barrett's esophagus patients participating in this single-center study comprised of all patients diagnosed with Barrett's esophagus at NorthShore University Health System hospitals and clinics over a 10-year period. Patients were followed in order to identify those progressing from Barrett's esophagus to low-grade dysplasia, high-grade dysplasia, and esophageal adenocarcinoma. We collected information from the patient's electronic medical records regarding demographic, endoscopic findings, histological findings, smoking/alcohol history, medication use including proton-pump inhibitors, and history of bariatric and antireflux surgery. Risk-adjusted modeling was performed using multivariable logistic regression. RESULTS This study included 1,830 total Barrett's esophagus patients, 102 of which had their Barrett's esophagus progress to low-grade dysplasia, high-grade dysplasia, or esophageal adenocarcinoma (confirmed by biopsy) with an annual incidence rate of 1.1%. Mean follow-up period was 5.51 years (10,083 patient-years). Compared to the group that did not progress, the group that progressed was older (69.3 ± 13.7 vs. 63.9 ± 13.4 years. p < 0.001) and likely to be male (75 vs. 61%, p < 0.01). In the multivariable analysis, patients who had a history of antireflux surgery (n = 44) or proton-pump inhibitor use without surgery (n = 1,641) were found to progress at significantly lower rates than patients who did not have antireflux surgery or were not taking PPI's (OR 0.18, 95% CI 0.09-0.36). CONCLUSIONS Reflux control was associated with decreased risk of progression to low-grade dysplasia, high-grade dysplasia, or esophageal adenocarcinoma. These results support the use of reflux control strategies such as proton-pump inhibitor therapy or surgery in patients with non-dysplastic Barrett's esophagus for the prevention of progression to dysplasia/adenocarcinoma.
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Affiliation(s)
- Craig S Brown
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA.
- Pritzker School of Medicine, University of Chicago, Chicago, IL, 60637, USA.
| | - Brittany Lapin
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - Chi Wang
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - Jay L Goldstein
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - John G Linn
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - Woody Denham
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - Stephen P Haggerty
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - Mark S Talamonti
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - John A Howington
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - Joann Carbray
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA
| | - Michael B Ujiki
- Department of Surgery, NorthShore University HealthSystem, 2650 Ridge Ave., Suite B665, Evanston, IL, 60201, USA.
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Falk GW. Barrett's oesophagus: frequency and prediction of dysplasia and cancer. Best Pract Res Clin Gastroenterol 2015; 29:125-38. [PMID: 25743461 PMCID: PMC4352690 DOI: 10.1016/j.bpg.2015.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 01/08/2015] [Accepted: 01/12/2015] [Indexed: 02/07/2023]
Abstract
The incidence of oesophageal adenocarcinoma is continuing to increase at an alarming rate in the Western world today. Barrett's oesophagus is a clearly recognized risk factor for the development of oesophageal adenocarcinoma, but the overwhelming majority of patients with Barrett's oesophagus will never develop oesophageal cancer. A number of endoscopic, histologic and epidemiologic risk factors identify Barrett's oesophagus patients at increased risk for progression to high-grade dysplasia and oesophageal adenocarcinoma. Endoscopic factors include segment length, mucosal abnormalities as seemingly trivial as oesophagitis and the 12 to 6 o'clock hemisphere of the oesophagus. Both intestinal metaplasia and low grade dysplasia, the latter only if confirmed by a pathologist with expertise in Barrett's oesophagus pathologic interpretation are the histologic risk factors for progression. Epidemiologic risk factors include ageing, male gender, obesity, and smoking. Factors that may protect against the development of adenocarcinoma include a diet rich in fruits and vegetables, and the use of proton pump inhibitors, aspirin/NSAIDs and statins.
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Affiliation(s)
- Gary W. Falk
- Division of Gastroenterology, Hospital of the University of Pennsylvania, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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O'Sullivan KE, Phelan JJ, O'Hanlon C, Lysaght J, O'Sullivan JN, Reynolds JV. The role of inflammation in cancer of the esophagus. Expert Rev Gastroenterol Hepatol 2014; 8:749-60. [PMID: 24857183 DOI: 10.1586/17474124.2014.913478] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Esophageal adenocarcinoma is the eighth most common malignancy worldwide. The overall prognosis is poor, with 5-year survival ranges of approximately 15-25%, and 30-50% for patients who can be treated with curative intent. There has been a marked increase in incidence of esophageal adenocarcinoma over the last 30 years, with chronic and severe reflux, diet and obesity identified as principal factors fuelling this rise in the West. Esophageal adenocarcinoma is an exemplar model of an inflammation-associated cancer. The key molecular pathways driving tumor development and influencing tumor biology are the subject of considerable research efforts, and is the principal focus of this review. In addition, the diverse range of changes occurring in the local immune response, tissue microenvironment, metabolic profile, intracellular signaling mechanisms and microRNA signatures are discussed, as well as novel targeted therapies.
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Affiliation(s)
- Katie E O'Sullivan
- Department of Surgery, Institute of Molecular Medicine, St. James Hospital, Dublin 8, Ireland
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Intake of vegetables and fruit and risk of esophageal adenocarcinoma: a meta-analysis of observational studies. Eur J Nutr 2014; 53:1511-21. [PMID: 24448974 DOI: 10.1007/s00394-014-0656-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 01/13/2014] [Indexed: 01/13/2023]
Abstract
OBJECTIVES To study the association between the intake of fruit and vegetables and risk of esophageal adenocarcinoma (EAC), we summarized the evidence from observational studies in categorical and linear dose-response meta-analyses. METHODS Eligible studies published up to June 2013 were retrieved via computerized searches of MEDLINE and EMBASE. Random-effects models were used to calculate summary relative risks (SRRs) and the corresponding 95% confidence intervals (CIs). Between-study heterogeneity was assessed using the Cochran's Q and I (2) statistics. RESULTS A total of 12 studies involving 1,572 cases of EAC were included in this meta-analysis. Based on the highest versus lowest analysis, inverse associations were observed between intakes of vegetable (SRRs = 0.76, 95% CIs 0.59-0.96; P heterogeneity = 0.098, I (2) 40.4%; n = 9 studies), intakes of fruit (SRRs = 0.73, 95% CIs, 0.55-0.98; P heterogeneity = 0.03, I (2) = 52.9%; n = 9 studies), and intakes of total vegetables and fruit combined (SRRs = 0.68, 95% CI 0.49-0.93; P heterogeneity = 0.162, I (2) = 38.9%; n = 5 studies). Similar results were also observed in a linear dose-response analysis. CONCLUSION These data support the hypothesis that intakes of vegetables and fruit may significantly reduce the risk of EAC. Further investigation with prospective designs, validated questionnaires, and good control of important confounders is warranted.
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The esophagitis to adenocarcinoma sequence; the role of inflammation. Cancer Lett 2013; 345:182-9. [PMID: 23994342 DOI: 10.1016/j.canlet.2013.08.017] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/08/2013] [Accepted: 08/13/2013] [Indexed: 12/19/2022]
Abstract
Esophageal adenocarcinoma (EAC) is the eighth most common cancer worldwide, and approximately 15% of patients survive 5years. Reflux disease (GERD) and Barrett's esophagus (BE) are major risk factors for the development of EAC, and epidemiologic studies highlight a strong association with obesity. The immune, inflammatory and intracellular signaling changes resulting from chronic inflammation of the esophageal squamous epithelium are increasingly well characterized. In GERD and Barrett's, an essential role for T-cells in the initiation of inflammation in the esophagus has been identified, and a balance between T-cell responses and phenotype may play an important role in disease progression. Obesity is a chronic low-grade inflammatory state, fueled by adipose tissue derived- inflammatory mediators such as IL-6, TNF-α and leptin, representing a novel area for targeted research. Additionally, reactive oxygen species (ROS) and receptor tyrosine kinase (RTK) activation may drive progression from esophagitis to EAC, and downstream signaling pathways employed by these molecules may be important. This review will explain the diverse range of mechanisms potentially driving and maintaining inflammation within the esophagus and explore both existing and future therapeutic strategies targeting the process.
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Improving asthma during pregnancy with dietary antioxidants: the current evidence. Nutrients 2013; 5:3212-34. [PMID: 23948757 PMCID: PMC3775250 DOI: 10.3390/nu5083212] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/06/2013] [Accepted: 08/07/2013] [Indexed: 12/16/2022] Open
Abstract
The complication of asthma during pregnancy is associated with a number of poor outcomes for the mother and fetus. This may be partially driven by increased oxidative stress induced by the combination of asthma and pregnancy. Asthma is a chronic inflammatory disease of the airways associated with systemic inflammation and oxidative stress, which contributes to worsening asthma symptoms. Pregnancy alone also intensifies oxidative stress through the systemic generation of excess reactive oxidative species (ROS). Antioxidants combat the damaging effects of ROS; yet antioxidant defenses are reduced in asthma. Diet and nutrition have been postulated as potential factors to combat the damaging effects of asthma. In particular, dietary antioxidants may play a role in alleviating the heightened oxidative stress in asthma. Although there are some observational and interventional studies that have shown protective effects of antioxidants in asthma, assessment of antioxidants in pregnancy are limited and there are no antioxidant intervention studies in asthmatic pregnancies on asthma outcomes. The aims of this paper are to (i) review the relationships between oxidative stress and dietary antioxidants in adults with asthma and asthma during pregnancy, and (ii) provide the rationale for which dietary management strategies, specifically increased dietary antioxidants, might positively impact maternal asthma outcomes. Improving asthma control through a holistic antioxidant dietary approach might be valuable in reducing asthma exacerbations and improving asthma management during pregnancy, subsequently impacting perinatal health.
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