1
|
Shi DD, Fang YJ, Jiang YL, Dong T, Zhang ZL, Ma T, Zhou RL, Ou QJ, Zhang CX. Serum levels of n-3 PUFA and colorectal cancer risk in Chinese population. Br J Nutr 2023; 130:1239-1249. [PMID: 36746393 DOI: 10.1017/s0007114523000351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Circulating n-3 PUFA, which integrate endogenous and exogenous n-3 PUFA, can be better used to investigate the relationship between n-3 PUFA and disease. However, studies examining the associations between circulating n-3 PUFA and colorectal cancer (CRC) risk were limited, and the results remained inconclusive. This case–control study aimed to examine the association between serum n-3 PUFA and CRC risk in Chinese population. A total of 680 CRC cases and 680 sex- and age-matched (5-year interval) controls were included. Fatty acids were assayed by GC. OR and 95 % CI were calculated using multivariable logistic regression after adjustment for potential confounders. Higher level of serum α-linolenic acid (ALA), docosapentaenoic acid (DPA), DHA, long-chain n-3 PUFA and total n-3 PUFA were associated with lower odds of CRC. The adjusted OR and 95 % CI were 0·34 (0·24, 0·49, Pfor trend < 0·001) for ALA, 0·57 (0·40, 0·80, Pfor trend < 0·001) for DPA, 0·48 (0·34, 0·68, Pfor trend < 0·001) for DHA, 0·39 (0·27, 0·56, Pfor trend < 0·001) for long-chain n-3 PUFA and 0·31 (0·22, 0·45, Pfor trend < 0·001) for total n-3 PUFA comparing the highest with the lowest quartile. However, there was no statistically significant association between EPA and odds of CRC. Analysis stratified by sex showed that ALA, DHA, long-chain n-3 PUFA and total n-3 PUFA were inversely associated with odds of CRC in both sexes. This study indicated that serum ALA, DPA, DHA, long-chain n-3 PUFA and total n-3 PUFA were inversely associated with odds of having CRC in Chinese population.
Collapse
Affiliation(s)
- Dan-Dan Shi
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China
| | - Yu-Jing Fang
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou510060, People's Republic of China
| | - Yi-Ling Jiang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China
| | - Ting Dong
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China
| | - Zhuo-Lin Zhang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China
| | - Ting Ma
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China
| | - Ruo-Lin Zhou
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China
| | - Qing-Jian Ou
- Department of Experimental Research, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 651 Dongfeng Road East, Guangzhou510060, People's Republic of China
| | - Cai-Xia Zhang
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou510080, People's Republic of China
| |
Collapse
|
2
|
Shnayder NA, Ashkhotov AV, Trefilova VV, Nurgaliev ZA, Novitsky MA, Petrova MM, Narodova EA, Al-Zamil M, Chumakova GA, Garganeeva NP, Nasyrova RF. Molecular Basic of Pharmacotherapy of Cytokine Imbalance as a Component of Intervertebral Disc Degeneration Treatment. Int J Mol Sci 2023; 24:ijms24097692. [PMID: 37175399 PMCID: PMC10178334 DOI: 10.3390/ijms24097692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 04/17/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Intervertebral disc degeneration (IDD) and associated conditions are an important problem in modern medicine. The onset of IDD may be in childhood and adolescence in patients with a genetic predisposition. With age, IDD progresses, leading to spondylosis, spondylarthrosis, herniated disc, spinal canal stenosis. One of the leading mechanisms in the development of IDD and chronic back pain is an imbalance between pro-inflammatory and anti-inflammatory cytokines. However, classical therapeutic strategies for correcting cytokine imbalance in IDD do not give the expected response in more than half of the cases. The purpose of this review is to update knowledge about new and promising therapeutic strategies based on the correction of the molecular mechanisms of cytokine imbalance in patients with IDD. This review demonstrates that knowledge of the molecular mechanisms of the imbalance between pro-inflammatory and anti-inflammatory cytokines may be a new key to finding more effective drugs for the treatment of IDD in the setting of acute and chronic inflammation.
Collapse
Affiliation(s)
- Natalia A Shnayder
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- Shared Core Facilities "Molecular and Cell Technologies", V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia
| | - Azamat V Ashkhotov
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
| | - Vera V Trefilova
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia
| | - Zaitun A Nurgaliev
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia
| | - Maxim A Novitsky
- Department of Neurology, Hospital for War Veterans, 193079 Saint Petersburg, Russia
| | - Marina M Petrova
- Shared Core Facilities "Molecular and Cell Technologies", V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia
| | - Ekaterina A Narodova
- Shared Core Facilities "Molecular and Cell Technologies", V.F. Voino-Yasenetsky Krasnoyarsk State Medical University, 660022 Krasnoyarsk, Russia
| | - Mustafa Al-Zamil
- Department of Physiotherapy, Faculty of Continuing Medical Education, Peoples' Friendship University of Russia, 117198 Moscow, Russia
| | - Galina A Chumakova
- Department of Therapy and General Medical Practice with a Course of Postgraduate Professional Education, Altai State Medical University, 656038 Barnaul, Russia
| | - Natalia P Garganeeva
- Department of General Medical Practice and Outpatient Therapy, Siberian State Medical University, 634050 Tomsk, Russia
| | - Regina F Nasyrova
- Institute of Personalized Psychiatry and Neurology, Shared Core Facilities, V.M. Bekhterev National Medical Research Centre for Psychiatry and Neurology, 192019 Saint Petersburg, Russia
- International Centre for Education and Research in Neuropsychiatry, Samara State Medical University, 443016 Samara, Russia
| |
Collapse
|
3
|
Dietary trans fatty acids and risk of colorectal cancer: a systematic review and meta-analysis of observational studies. Eur J Nutr 2023; 62:563-572. [PMID: 36322289 DOI: 10.1007/s00394-022-03034-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 10/11/2022] [Indexed: 11/07/2022]
Abstract
PURPOSE Although trans fatty acid has been associated with diabetes and cardiovascular disorders, studies gave conflicting results when examined their impact on colorectal cancer (CRC). The present systematic review and meta-analysis aimed to summarize the current evidence regarding the association between dietary and tissue trans fatty acids and the risk of CRC. METHODS We searched PubMed/MEDLINE, EMBASE, Scopus, Web of Science (ISI), and Google Scholar without date and language limitation up to May 2022 and included the eligible studies. The quality of included studies was assessed using the Newcastle-Ottawa scale. The overall odds ratios (ORs) were derived using a random-effects model. RESULTS In assessment of dietary trans fatty acids 18 studies, including eight cohort, 10 case-control, and observational data from one randomized control trial were included. Although Dietary trans fats were associated with higher risk of CRC (OR = 1.093, 95% CI 1.017, 1.176, P = 0.016; I2 = 61.3%), Subgroup analysis by study design yielded an insignificant effect for case-control (OR = 1.152, 95% CI 1.000, 1.328, P = 0.050; I2 = 77.2%) and cohort (OR = 1.027, 95% CI 0.976, 1.081, P = 0.299; I2 = 0%) studies. Although there was no significant association of trans fatty acids with rectal cancer (OR = 1.093, 95% CI 0.984 to 1.215, P = 0.098; I2 = 0%), there was for colon cancer (OR = 1.91, 95% CI 1.062 to 1.335, P = 0.003; I2 = 37.6%).The analysis of four studies that evaluated the relation between tissue trans fat and CRC revealed meaningful result (OR = 0.745, 95% CI 0.619, 0.896, P = 0.002; I2 = 42.6%). While subgroup assessments for colon cancer (OR = 0.804, 95% CI 0.583, 1.109, P = 0.183; I2 = 0%) and plasma trans fatty acids OR = 0.853, 95% CI 0.633, 1.150, P = 0.298; I2 = 0%) were insignificant. CONCLUSION Dietary trans fatty acids increased the risk of CRC, whereas tissue trans fatty acids had a protective effect on CRC. Nonetheless, neither type of trans fatty acid increased the risk of colon or rectal cancer; thus, more prospective studies are needed to determine the validity of these associations.
Collapse
|
4
|
Rizzo G, Baroni L, Lombardo M. Promising Sources of Plant-Derived Polyunsaturated Fatty Acids: A Narrative Review. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:ijerph20031683. [PMID: 36767052 PMCID: PMC9914036 DOI: 10.3390/ijerph20031683] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/11/2023] [Accepted: 01/15/2023] [Indexed: 06/01/2023]
Abstract
(1) Background: Polyunsaturated fatty acids (PUFAs) are known for their ability to protect against numerous metabolic disorders. The consumption of oily fish is the main source of PUFAs in human nutrition and is commonly used for supplement production. However, seafood is an overexploited source that cannot be guaranteed to cover the global demands. Furthermore, it is not consumed by everyone for ecological, economic, ethical, geographical and taste reasons. The growing demand for natural dietary sources of PUFAs suggests that current nutritional sources are insufficient to meet global needs, and less and less will be. Therefore, it is crucial to find sustainable sources that are acceptable to all, meeting the world population's needs. (2) Scope: This review aims to evaluate the recent evidence about alternative plant sources of essential fatty acids, focusing on long-chain omega-3 (n-3) PUFAs. (3) Method: A structured search was performed on the PubMed search engine to select available human data from interventional studies using omega-3 fatty acids of non-animal origin. (4) Results: Several promising sources have emerged from the literature, such as algae, microorganisms, plants rich in stearidonic acid and GM plants. However, the costs, acceptance and adequate formulation deserve further investigation.
Collapse
Affiliation(s)
- Gianluca Rizzo
- Independent Researcher, Via Venezuela 66, 98121 Messina, Italy
| | - Luciana Baroni
- Scientific Society for Vegetarian Nutrition, 30171 Venice, Italy
| | - Mauro Lombardo
- Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Open University, 00166 Rome, Italy
| |
Collapse
|
5
|
Jiang H, Wang L, Wang D, Yan N, Li C, Wu M, Wang F, Mi B, Chen F, Jia W, Liu X, Lv J, Liu Y, Lin J, Ma L. Omega-3 polyunsaturated fatty acid biomarkers and risk of type 2 diabetes, cardiovascular disease, cancer, and mortality. Clin Nutr 2022; 41:1798-1807. [PMID: 35830775 DOI: 10.1016/j.clnu.2022.06.034] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 06/08/2022] [Accepted: 06/24/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND & AIMS Considerable attention has focused on the role of omega-3 polyunsaturated fatty acids (PUFA) in the prevention of cardiometabolic diseases, which has led to dietary recommendations to increase omega-3 fatty acid intake. A meta-analysis was conducted to summarize evidence from prospective studies regarding associations between omega-3 PUFA biomarkers and risk of developing major chronic diseases. METHODS Four electronic databases were searched for articles from inception to March 1, 2022. Random-effects model was used to estimate the pooled relative risk (RR) and 95% confidence intervals (CIs) for the association of omega-3 PUFAs, including α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA), and docosahexaenoic acid (DHA), with risk of developing type 2 diabetes (T2D), cardiovascular disease (CVD), including coronary heart disease (CHD) and stroke, cancer, and mortality. The Grades of Recommendation, Assessment, Development and Evaluation assessment tool was used to rates the confidence in estimates. RESULTS A total of 67 prospective studies comprised of 310,955 participants were identified. Individual omega-3 PUFAs showed divergent associations with the study outcomes of interest. A significant inverse association with T2D risk was observed across categories of ALA (relative risk [RR]: 0.89, 95% confidence interval [CI]: 0.82-0.96), EPA (RR: 0.85, 95% CI: 0.72-0.99) and DPA (RR: 0.84, 95% CI: 0.73-0.96) biomarkers. The marine-origin omega-3 fatty acids biomarkers but not ALA was significantly associated with lower risks of total CVD, CHD, and overall mortality, with RRs ranging from 0.70 for DHA-CHD association to 0.85 for EPA-CHD association. A lower risk of colorectal cancer was observed at higher levels of DPA (RR: 0.76, 95% CI: 0.59-0.98) and DHA (RR: 0.80; 95% CI: 0.65-0.99), whereas no association was noted for other outcomes. In addition, a dose-response relationship was observed between an increasing level of EPA, DPA, or DHA biomarker and lower risk of CVD. CONCLUSIONS Higher concentrations of marine-derived omega-3 PUFA biomarkers were associated with a significantly reduced risk of total CVD, CHD, and total mortality. Levels of ALA were inversely associated with a lower risk of T2D but not CVD-related outcomes. These data support the dietary recommendations advocating the role of omega-3 PUFAs in maintaining an overall lower risk of developing cardiovascular disease and premature deaths.
Collapse
Affiliation(s)
- Hong Jiang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Lina Wang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Duolao Wang
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Ni Yan
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Chao Li
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Min Wu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Fan Wang
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Baibing Mi
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Fangyao Chen
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Wanru Jia
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Xi Liu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jiaxin Lv
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Yan Liu
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jing Lin
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China.
| | - Le Ma
- School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an, China; Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China.
| |
Collapse
|
6
|
A Protective Role for Arachidonic Acid Metabolites against Advanced Colorectal Adenoma in a Phase III Trial of Selenium. Nutrients 2021; 13:nu13113877. [PMID: 34836131 PMCID: PMC8621008 DOI: 10.3390/nu13113877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 12/11/2022] Open
Abstract
Oxylipins derived from arachidonic acid (ARA) have been implicated in the development of colorectal adenomas and colorectal cancer. The primary purpose of this work was to determine the relationship between plasma levels of oxylipins and colorectal adenoma characteristics at study entry, as well as with the development of a new adenoma during follow-up within a Phase III adenoma prevention clinical trial with selenium (Sel). Secondarily, we sought to determine whether the selenium intervention influenced plasma oxylipin levels. Four oxylipins were quantified in stored plasma samples from a subset of Sel study subjects (n = 256) at baseline and at 12-months. There were significantly lower odds of an advanced adenoma at baseline with higher prostaglandin E2 (PGE2), with an OR (95% CI) of 0.55 (0.33–0.92), and with 5-hydroxyeicosatetraenoic acid (5-HETE) ((0.53 (0.33–0.94)); and of a large adenoma with higher PGE2 ((0.52 (0.31–0.87)). In contrast, no associations were observed between any oxylipin and the development of a new adenoma during follow-up. Selenium supplementation was associated with a significantly smaller increase in 5-HETE after 12 months compared to the placebo, though no other results were statistically significant. The ARA-derived oxylipins may have a role in the progression of non-advanced adenoma to advanced, but not with the development of a new adenoma.
Collapse
|
7
|
Shock T, Badang L, Ferguson B, Martinez-Guryn K. The interplay between diet, gut microbes, and host epigenetics in health and disease. J Nutr Biochem 2021; 95:108631. [PMID: 33789148 PMCID: PMC8355029 DOI: 10.1016/j.jnutbio.2021.108631] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 01/31/2021] [Accepted: 03/05/2021] [Indexed: 12/11/2022]
Abstract
The mechanisms linking the function of microbes to host health are becoming better defined but are not yet fully understood. One recently explored mechanism involves microbe-mediated alterations in the host epigenome. Consumption of specific dietary components such as fiber, glucosinolates, polyphenols, and dietary fat has a significant impact on gut microbiota composition and function. Microbial metabolism of these dietary components regulates important epigenetic functions that ultimately influences host health. Diet-mediated alterations in the gut microbiome regulate the substrates available for epigenetic modifications like DNA methylation or histone methylation and/or acetylation. In addition, generation of microbial metabolites such as butyrate inhibits the activity of core epigenetic enzymes like histone deacetylases (HDACs). Reciprocally, the host epigenome also influences gut microbial composition. Thus, complex interactions exist between these three factors. This review comprehensively examines the interplay between diet, gut microbes, and host epigenetics in modulating host health. Specifically, the dietary impact on gut microbiota structure and function that in-turn regulates host epigenetics is evaluated in terms of promoting protection from disease development.
Collapse
Affiliation(s)
- Tori Shock
- Biomedical Sciences Program, Midwestern University, Downers Grove, IL, USA
| | - Luis Badang
- Biomedical Sciences Program, Midwestern University, Downers Grove, IL, USA
| | - Bradley Ferguson
- Department of Nutrition, University of Nevada Reno, Reno, NV, USA; Center of Biomedical Research Excellence for Molecular and Cellular Signal Transduction in the Cardiovascular System, University of Nevada Reno, Reno, NV, USA
| | | |
Collapse
|
8
|
Linseisen J, Grundmann N, Zoller D, Kühn T, Jansen EHJM, Chajès V, Fedirko V, Weiderpass E, Dahm CC, Overvad K, Tjønneland A, Boutron-Ruault MC, Rothwell JA, Severi G, Kaaks R, Schulze MB, Aleksandrova K, Sieri S, Panico S, Tumino R, Masala G, De Marco L, Bueno-de-Mesquita B, Vermeulen R, Gram IT, Skeie G, Chirlaque MD, Ardanaz E, Agudo A, Sánchez MJ, Amiano P, Wennberg M, Bodén S, Perez-Cornago A, Aglago EK, Gunter MJ, Jenab M, Heath AK, Nieters A. Red Blood Cell Fatty Acids and Risk of Colorectal Cancer in The European Prospective Investigation into Cancer and Nutrition (EPIC). Cancer Epidemiol Biomarkers Prev 2021; 30:874-885. [PMID: 33619024 DOI: 10.1158/1055-9965.epi-20-1426] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/03/2020] [Accepted: 02/05/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND A growing body of evidence suggests that alterations of dietary fatty acid (FA) profiles are associated with colorectal cancer risk. However, data from large-scale epidemiologic studies using circulating FA measurements to objectively assess individual FA and FA categories are scarce. METHODS We investigate the association between red blood cell (RBC) membrane FAs and risk of colorectal cancer in a case-control study nested within a large prospective cohort. After a median follow-up of 6.4 years, 1,069 incident colorectal cancer cases were identified and matched to 1,069 controls among participants of the European Prospective Investigation into Cancer and Nutrition (EPIC). The FA composition of RBC phospholipids (in mol%) was analyzed by gas chromatography, and their association with risk of colorectal cancer was estimated by multivariable adjusted conditional logistic regression models. RESULTS After correction for multiple testing, subjects with higher concentrations of RBC stearic acid were at higher risk for colorectal cancer (OR = 1.23; 95% CI = 1.07-1.42, per 1 mol%). Conversely, colorectal cancer incidence decreased with increasing proportions of RBC n-3 PUFA, particularly eicosapentaenoic acid (0.75; 0.62-0.92, per 1 mol%). The findings for the n-6 PUFA arachidonic acid were inconsistent. CONCLUSIONS The positive association between prediagnostic RBC stearic acid and colorectal cancer reflects putative differences in FA intake and metabolism between cancer cases and matched controls, which deserve further investigation. The inverse relationship between EPA and colorectal cancer is in line with the repeatedly reported protective effect of fish consumption on colorectal cancer risk. IMPACT These findings add to the evidence on colorectal cancer prevention.
Collapse
Affiliation(s)
- Jakob Linseisen
- Chair of Epidemiology, Ludwig-Maximilians-Universität München, at UNIKA-T, Augsburg, Germany.
- Clinical Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Nina Grundmann
- Chair of Epidemiology, Ludwig-Maximilians-Universität München, at UNIKA-T, Augsburg, Germany
- Clinical Epidemiology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Dorothee Zoller
- Chair of Epidemiology, Ludwig-Maximilians-Universität München, at UNIKA-T, Augsburg, Germany
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Tilman Kühn
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Eugène H J M Jansen
- Centre for Health Protection, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Veronique Chajès
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Veronika Fedirko
- Department of Epidemiology, Rollins School of Public Health, Winship Cancer Institute, Emory University, Atlanta, Georgia
| | | | | | - Kim Overvad
- Department of Public Health, Aarhus University, Aarhus, Denmark
- Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Anne Tjønneland
- Danish Cancer Society Research Center, Diet, Genes and Environment, Copenhagen, Denmark
| | - Marie-Christine Boutron-Ruault
- Centre de recherche en Epidémiologie et Santé des Populations (CESP), Institut National de la Santé et de la Recherche Médicale (Inserm) U1018, Faculté de Médecine, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
- Institut de Cancérologie Gustave Roussy, Villejuif, France
| | - Joseph A Rothwell
- Centre de recherche en Epidémiologie et Santé des Populations (CESP), Institut National de la Santé et de la Recherche Médicale (Inserm) U1018, Faculté de Médecine, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
- Institut de Cancérologie Gustave Roussy, Villejuif, France
| | - Gianluca Severi
- Centre de recherche en Epidémiologie et Santé des Populations (CESP), Institut National de la Santé et de la Recherche Médicale (Inserm) U1018, Faculté de Médecine, Université Paris-Sud, Université Paris-Saclay, Villejuif, France
- Institut de Cancérologie Gustave Roussy, Villejuif, France
- Department of Statistics, Computer Science and Applications (DISIA), University of Florence, Florence, Italy
| | - Rudolf Kaaks
- German Cancer Research Center (DKFZ), Division of Cancer Epidemiology, Heidelberg, Germany
| | - Matthias B Schulze
- German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, Potsdam, Germany
| | - Krasimira Aleksandrova
- German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany
- Institute of Nutritional Science, University of Potsdam, Potsdam, Germany
| | - Sabina Sieri
- Epidemiology and Prevention Unit, Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Salvatore Panico
- Dipartimento di Medicina Clinica e Chirurgia, Federico II University, Naples, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, Provincial Health Authority, Ragusa, Italy
| | - Giovanna Masala
- Cancer Risk Factors and Life-Style Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network - ISPRO, Florence, Italy
| | - Laura De Marco
- Cancer Epidemiology Unit, A.O.U. Città della Salute e della Scienza Hospital and CPO Piemonte, Turin, Italy
| | - Bas Bueno-de-Mesquita
- Department for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - Roel Vermeulen
- Division of Environmental Epidemiology, Institute for Risk Assessment Sciences (IRAS), Utrecht University, Utrecht, the Netherlands
| | - Inger T Gram
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - Guri Skeie
- Department of Community Medicine, Faculty of Health Sciences, University of Tromsø, The Arctic University of Norway, Tromsø, Norway
| | - María-Dolores Chirlaque
- Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Department of Health and Social Sciences, Universidad de Murcia, Murcia, Spain
| | - Eva Ardanaz
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Navarra Public Health Institute, Pamplona, Spain
- IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Antonio Agudo
- Unit of Nutrition and Cancer, Catalan Institute of Oncology - ICO, Nutrition and Cancer Group, Bellvitge Biomedical Research Institute - IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Maria-José Sánchez
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Escuela Andaluza de Salud Pública (EASP), Granada, Spain
- Instituto de Investigación Biosanitaria ibs.GRANADA, Granada, Spain
- Department of Preventive Medicine and Public Health, University of Granada, Granada, Spain
| | - Pilar Amiano
- Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Public Health Division of Gipuzkoa, BioDonostia Research Institute, San Sebastian, Spain
| | - Maria Wennberg
- Section of Sustainable Health, Nutritional Research, Umeå University, Umeå, Sweden
| | - Stina Bodén
- Department of Radiation Sciences, Oncology unit, Umeå University, Umeå, Sweden
| | - Aurora Perez-Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population Health, Oxford, United Kingdom
| | - Elom K Aglago
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Marc J Gunter
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Mazda Jenab
- International Agency for Research on Cancer (IARC-WHO), Lyon, France
| | - Alicia K Heath
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom
| | - Alexandra Nieters
- Institute of Immunodeficiency, Medical Faculty, University Hospital Freiburg, Freiburg, Germany
| |
Collapse
|
9
|
N-6 Polyunsaturated Fatty Acids and Risk of Cancer: Accumulating Evidence from Prospective Studies. Nutrients 2020; 12:nu12092523. [PMID: 32825393 PMCID: PMC7551408 DOI: 10.3390/nu12092523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/14/2020] [Accepted: 08/17/2020] [Indexed: 02/07/2023] Open
Abstract
Previous studies on the association between polyunsaturated fatty acids (PUFAs) and cancer have focused on n-3 PUFAs. To investigate the association between intake or blood levels of n-6 PUFAs and cancer, we searched the PubMed and Embase databases up to March 2020 and conducted a meta-analysis. A total of 70 articles were identified. High blood levels of n-6 PUFAs were associated with an 8% lower risk of all cancers (relative risk (RR) = 0.92; 95% confidence interval (CI): 0.86-0.98) compared to low blood levels of n-6 PUFAs. In the subgroup analyses by cancer site, type of n-6 PUFAs, and sex, the inverse associations were strong for breast cancer (RR = 0.87; 95% CI: 0.77-0.98), linoleic acid (LA) (RR = 0.91; 95% CI: 0.82-1.00), and women (RR = 0.88; 95% CI: 0.79-0.97). In the dose-response analysis, a 2% and 3% decrease in the risk of cancer was observed with a 5% increase in blood levels of n-6 PUFAs and LA, respectively. Thus, there was no significant association between n-6 PUFA intake and the risk of cancer. The pooled RR of cancer for the highest versus lowest category of n-6 PUFA intake was 1.02 (95% CI: 0.99-1.05). Evidence from prospective studies indicated that intake of n-6 PUFAs was not significantly associated with risk of cancer, but blood levels of n-6 PUFAs were inversely associated with risk of cancer.
Collapse
|
10
|
Prasad P, Anjali P, Sreedhar RV. Plant-based stearidonic acid as sustainable source of omega-3 fatty acid with functional outcomes on human health. Crit Rev Food Sci Nutr 2020; 61:1725-1737. [PMID: 32431176 DOI: 10.1080/10408398.2020.1765137] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Dietary omega-3 long chain polyunsaturated fatty acids (n-3 LC-PUFA) like eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3) are known to be potent biological regulators with therapeutic and preventive effects on human health. Many global health organizations have recommended consuming marine based omega-3 sources for neonatal brain development and reducing the risk of various chronic diseases. However, due to concerns regarding the origin, sustainable supply and safety of the marine sources, alternative n-3 PUFA sources are being explored. Recently, plant-based omega-3 sources are gaining much importance because of their sustainable supply and dietary acceptance. α-linolenic acid (ALA, 18:3n-3) rich seed oils are the major omega-3 fatty acid source available for human consumption. But, efficiency of conversion of ALA to n-3 LC-PUFAs in humans is limited due to a rate-limiting step in the n-3 pathway catalyzed by Δ6-desaturase. Botanical stearidonic acid (SDA, 18:4n-3) rich oils are emerging as a sustainable omega-3 source with efficient conversion rate to n-3 LC-PUFA especially to EPA, as it bypasses the Δ6-desaturase rate limiting step. Several recent studies have identified the major plant sources of SDA and explored its potential health benefits and preventive roles in inflammation, cardiovascular disease (CVD) and cancer. This systematic review summarizes the current state of knowledge on the sources, nutraceutical roles, food-based applications and the future perspectives of botanical SDA.
Collapse
Affiliation(s)
- P Prasad
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute (CSIR-CFTRI), Mysuru, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - P Anjali
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute (CSIR-CFTRI), Mysuru, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - R V Sreedhar
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute (CSIR-CFTRI), Mysuru, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| |
Collapse
|
11
|
Khankari NK, Banbury BL, Borges MC, Haycock P, Albanes D, Arndt V, Berndt SI, Bézieau S, Brenner H, Campbell PT, Casey G, Chan AT, Chang-Claude J, Conti DV, Cotterchio M, English DR, Figueiredo JC, Giles GG, Giovannucci EL, Gunter MJ, Hampe J, Hoffmeister M, Hopper JL, Jenkins MA, Joshi AD, Marchand LL, Lemire M, Li CI, Li L, Lindblom A, Martín V, Moreno V, Newcomb PA, Offit K, Pharoah PDP, Rennert G, Sakoda LC, Schafmayer C, Schmit SL, Slattery ML, Song M, Thibodeau SN, Ulrich CM, Weinstein SJ, White E, Win AK, Wolk A, Woods MO, Wu AH, Cai Q, Denny JC, Edwards TL, Murff HJ, Gruber SB, Peters U, Zheng W. Mendelian Randomization of Circulating Polyunsaturated Fatty Acids and Colorectal Cancer Risk. Cancer Epidemiol Biomarkers Prev 2020; 29:860-870. [PMID: 32051193 PMCID: PMC7125012 DOI: 10.1158/1055-9965.epi-19-0891] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/03/2019] [Accepted: 01/23/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Results from epidemiologic studies examining polyunsaturated fatty acids (PUFA) and colorectal cancer risk are inconsistent. Mendelian randomization may strengthen causal inference from observational studies. Given their shared metabolic pathway, examining the combined effects of aspirin/NSAID use with PUFAs could help elucidate an association between PUFAs and colorectal cancer risk. METHODS Information was leveraged from genome-wide association studies (GWAS) regarding PUFA-associated SNPs to create weighted genetic scores (wGS) representing genetically predicted circulating blood PUFAs for 11,016 non-Hispanic white colorectal cancer cases and 13,732 controls in the Genetics and Epidemiology of Colorectal Cancer Consortium (GECCO). Associations per SD increase in the wGS were estimated using unconditional logistic regression. Interactions between PUFA wGSs and aspirin/NSAID use on colorectal cancer risk were also examined. RESULTS Modest colorectal cancer risk reductions were observed per SD increase in circulating linoleic acid [ORLA = 0.96; 95% confidence interval (CI) = 0.93-0.98; P = 5.2 × 10-4] and α-linolenic acid (ORALA = 0.95; 95% CI = 0.92-0.97; P = 5.4 × 10-5), whereas modest increased risks were observed for arachidonic (ORAA = 1.06; 95% CI = 1.03-1.08; P = 3.3 × 10-5), eicosapentaenoic (OREPA = 1.04; 95% CI = 1.01-1.07; P = 2.5 × 10-3), and docosapentaenoic acids (ORDPA = 1.03; 95% CI = 1.01-1.06; P = 1.2 × 10-2). Each of these effects was stronger among aspirin/NSAID nonusers in the stratified analyses. CONCLUSIONS Our study suggests that higher circulating shorter-chain PUFAs (i.e., LA and ALA) were associated with reduced colorectal cancer risk, whereas longer-chain PUFAs (i.e., AA, EPA, and DPA) were associated with an increased colorectal cancer risk. IMPACT The interaction of PUFAs with aspirin/NSAID use indicates a shared colorectal cancer inflammatory pathway. Future research should continue to improve PUFA genetic instruments to elucidate the independent effects of PUFAs on colorectal cancer.
Collapse
Affiliation(s)
- Nikhil K Khankari
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - Barbara L Banbury
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Maria C Borges
- Medical Research Council (MRC) Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Philip Haycock
- Medical Research Council (MRC) Integrative Epidemiology Unit, University of Bristol, Bristol, United Kingdom
- Population Health Sciences, Bristol Medical School, University of Bristol, Bristol, United Kingdom
| | - Demetrius Albanes
- Division of Cancer Epidemiology and Genetics, NCI, NIH, Bethesda, Maryland
| | - Volker Arndt
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sonja I Berndt
- Division of Cancer Epidemiology and Genetics, NCI, NIH, Bethesda, Maryland
| | - Stéphane Bézieau
- Service de Génétique Médicale, Centre Hospitalier Universitaire (CHU) Nantes, Nantes, France
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Division of Preventive Oncology, German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT), Heidelberg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Peter T Campbell
- Behavioral and Epidemiology Research Group, American Cancer Society, Atlanta, Georgia
| | - Graham Casey
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia
| | - Andrew T Chan
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Broad Institute of Harvard and MIT, Cambridge, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Jenny Chang-Claude
- University Medical Centre Hamburg-Eppendorf, University Cancer Centre Hamburg (UCCH), Hamburg, Germany
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - David V Conti
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Michelle Cotterchio
- Prevention and Cancer Control, Cancer Care Ontario, Toronto, Ontario, Canada
| | - Dallas R English
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Jane C Figueiredo
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
- Department of Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California
| | - Graham G Giles
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
- Cancer Epidemiology and Intelligence Division, Cancer Council Victoria, Melbourne, Victoria, Australia
| | - Edward L Giovannucci
- Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Marc J Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer, World Health Organization, Lyon, France
| | - Jochen Hampe
- Department of Medicine, University Hospital Dresden, Technische Universität Dresden (TU Dresden), Dresden, Germany
| | - Michael Hoffmeister
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - John L Hopper
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Mark A Jenkins
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Amit D Joshi
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | | | - Mathieu Lemire
- PanCuRx Translational Research Initiative, Ontario, Institute for Cancer Research, Toronto, Ontario, Canada
| | - Christopher I Li
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Li Li
- Department of Family Medicine, University of Virginia, Charlottesville, Virginia
| | - Annika Lindblom
- Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Vicente Martín
- Área de Medicina Preventiva y Salud Publica, Universidad de León, León, Spain
| | - Victor Moreno
- Cancer Prevention and Control Program, Catalan Institute of Oncology-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Department of Clinical Sciences, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Polly A Newcomb
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Epidemiology, University of Washington School of Public Health and Community Medicine, Seattle, Washington
| | - Kenneth Offit
- Clinical Genetics Service, Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, New York
- Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Paul D P Pharoah
- Department of Public Health and Primary Care, University of Cambridge, Cambridge, United Kingdom
| | - Gad Rennert
- Department of Community Medicine and Epidemiology, Lady Davis Carmel Medical Center, Haifa, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel
- Clalit National Cancer Control Center, Haifa, Israel
| | - Lori C Sakoda
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Division of Research, Kaiser Permanente Northern California, Oakland, California
| | - Clemens Schafmayer
- Department of General and Thoracic Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Stephanie L Schmit
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Martha L Slattery
- Division of Epidemiology, Department of Internal Medicine, University of Utah, Salt Lake City, Utah
| | - Mingyang Song
- Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts
| | - Stephen N Thibodeau
- Division of Laboratory Genetics, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota
| | - Cornelia M Ulrich
- Huntsman Cancer Institute and Department of Population Health Sciences, University of Utah, Salt Lake City, Utah
| | | | - Emily White
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Epidemiology, University of Washington School of Public Health and Community Medicine, Seattle, Washington
| | - Aung Ko Win
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Alicja Wolk
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Michael O Woods
- Discipline of Genetics, Memorial University of Newfoundland, St. John's, Newfoundland, Canada
| | - Anna H Wu
- Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Qiuyin Cai
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Joshua C Denny
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee
- Department of Biomedical Informatics, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Todd L Edwards
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Harvey J Murff
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Stephen B Gruber
- Department of Medical Oncology, City of Hope National Medical Center, Duarte, California
| | - Ulrike Peters
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
- Department of Epidemiology, University of Washington School of Public Health and Community Medicine, Seattle, Washington
| | - Wei Zheng
- Division of Epidemiology, Department of Medicine, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee
| |
Collapse
|
12
|
Aglago EK, Huybrechts I, Murphy N, Casagrande C, Nicolas G, Pischon T, Fedirko V, Severi G, Boutron-Ruault MC, Fournier A, Katzke V, Kühn T, Olsen A, Tjønneland A, Dahm CC, Overvad K, Lasheras C, Agudo A, Sánchez MJ, Amiano P, Huerta JM, Ardanaz E, Perez-Cornago A, Trichopoulou A, Karakatsani A, Martimianaki G, Palli D, Pala V, Tumino R, Naccarati A, Panico S, Bueno-de-Mesquita B, May A, Derksen JWG, Hellstrand S, Ohlsson B, Wennberg M, Van Guelpen B, Skeie G, Brustad M, Weiderpass E, Cross AJ, Ward H, Riboli E, Norat T, Chajes V, Gunter MJ. Consumption of Fish and Long-chain n-3 Polyunsaturated Fatty Acids Is Associated With Reduced Risk of Colorectal Cancer in a Large European Cohort. Clin Gastroenterol Hepatol 2020; 18:654-666.e6. [PMID: 31252190 DOI: 10.1016/j.cgh.2019.06.031] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/23/2019] [Accepted: 06/16/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS There is an unclear association between intake of fish and long-chain n-3 polyunsaturated fatty acids (n-3 LC-PUFAs) and colorectal cancer (CRC). We examined the association between fish consumption, dietary and circulating levels of n-3 LC-PUFAs, and ratio of n-6:n-3 LC-PUFA with CRC using data from the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. METHODS Dietary intake of fish (total, fatty/oily, lean/white) and n-3 LC-PUFA were estimated by food frequency questionnaires given to 521,324 participants in the EPIC study; among these, 6291 individuals developed CRC (median follow up, 14.9 years). Levels of phospholipid LC-PUFA were measured by gas chromatography in plasma samples from a sub-group of 461 CRC cases and 461 matched individuals without CRC (controls). Multivariable Cox proportional hazards and conditional logistic regression models were used to calculate hazard ratios (HRs) and odds ratios (ORs), respectively, with 95% CIs. RESULTS Total intake of fish (HR for quintile 5 vs 1, 0.88; 95% CI, 0.80-0.96; Ptrend = .005), fatty fish (HR for quintile 5 vs 1, 0.90; 95% CI, 0.82-0.98; Ptrend = .009), and lean fish (HR for quintile 5 vs 1, 0.91; 95% CI, 0.83-1.00; Ptrend = .016) were inversely associated with CRC incidence. Intake of total n-3 LC-PUFA (HR for quintile 5 vs 1, 0.86; 95% CI, 0.78-0.95; Ptrend = .010) was also associated with reduced risk of CRC, whereas dietary ratio of n-6:n-3 LC-PUFA was associated with increased risk of CRC (HR for quintile 5 vs 1, 1.31; 95% CI, 1.18-1.45; Ptrend < .001). Plasma levels of phospholipid n-3 LC-PUFA was not associated with overall CRC risk, but an inverse trend was observed for proximal compared with distal colon cancer (Pheterogeneity = .026). CONCLUSIONS In an analysis of dietary patterns of participants in the EPIC study, we found regular consumption of fish, at recommended levels, to be associated with a lower risk of CRC, possibly through exposure to n-3 LC-PUFA. Levels of n-3 LC-PUFA in plasma were not associated with CRC risk, but there may be differences in risk at different regions of the colon.
Collapse
Affiliation(s)
- Elom K Aglago
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France.
| | - Inge Huybrechts
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Neil Murphy
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Corinne Casagrande
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Genevieve Nicolas
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Tobias Pischon
- Molecular Epidemiology Research Group, Max Delbrueck Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Veronika Fedirko
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia
| | - Gianluca Severi
- Centre de Recherche en Epidémiologie et Santé des Populations, Université Paris-Sud, UVSQ, INSERM, Université Paris-Saclay, Villejuif, France; Institut Gustave Roussy, Villejuif, France
| | - Marie-Christine Boutron-Ruault
- Centre de Recherche en Epidémiologie et Santé des Populations, Université Paris-Sud, UVSQ, INSERM, Université Paris-Saclay, Villejuif, France; Institut Gustave Roussy, Villejuif, France
| | - Agnès Fournier
- Centre de Recherche en Epidémiologie et Santé des Populations, Université Paris-Sud, UVSQ, INSERM, Université Paris-Saclay, Villejuif, France; Institut Gustave Roussy, Villejuif, France
| | - Verena Katzke
- German Cancer Research Center (DKFZ), Foundation under Public Law, Heidelberg, Germany
| | - Tilman Kühn
- German Cancer Research Center (DKFZ), Foundation under Public Law, Heidelberg, Germany
| | - Anja Olsen
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Anne Tjønneland
- Diet, Genes and Environment, Danish Cancer Society Research Center, Copenhagen, Denmark; Department of Public Health, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | | | - Kim Overvad
- Department of Public Health, Aarhus University, Aarhus, Denmark; Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark
| | - Cristina Lasheras
- Functional Biology Department, School of Medicine, University of Oviedo, Asturias, Spain
| | - Antonio Agudo
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Program, Catalan Institute of Oncology-IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain
| | - Maria-Jose Sánchez
- Escuela Andaluza de Salud Pública, Instituto de Investigación Biosanitaria ibs, Universidad de Granada, Granada, Spain; CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - Pilar Amiano
- Public Health Division of Gipuzkoa, BioDonostia Research Institute, San Sebastian, Spain
| | - José Maria Huerta
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Department of Epidemiology, Murcia Regional Health Council, IMIB-Arrixaca, Murcia, Spain
| | - Eva Ardanaz
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain; Navarra Public Health Institute, Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain
| | - Aurora Perez-Cornago
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Antonia Trichopoulou
- Hellenic Health Foundation, Athens, Greece; School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Anna Karakatsani
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France; Department of Cardiology, Aalborg University Hospital, Aalborg, Denmark; 2nd Pulmonary Medicine Department, School of Medicine, National and Kapodistrian University of Athens, "ATTIKON" University Hospital, Haidari, Greece
| | | | - Domenico Palli
- Cancer Risk Factors and Life-Style Epidemiology Unit, Institute for Cancer Research, Prevention and Clinical Network - ISPRO, Florence, Italy
| | - Valeria Pala
- Epidemiology and Prevention Unit Fondazione IRCCS Istituto Nazionale dei Tumori di Milano, Milan, Italy
| | - Rosario Tumino
- Cancer Registry and Histopathology Department, "M.P.Arezzo" Hospital, Ragusa, Italy
| | - Alessio Naccarati
- Molecular Epidemiology and Exposomics Unit, Italian Institute for Genomic Medicine (IIGM), Torino, Italy
| | - Salvatore Panico
- Dipartimento di Medicina Clinica e Chirurgia Federico II University, Naples, Italy
| | - Bas Bueno-de-Mesquita
- Department for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands; Department of Gastroenterology and Hepatology, University Medical Centre, Utrecht, The Netherlands; Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, St Mary's Campus, London, United Kingdom; Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Anne May
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Jeroen W G Derksen
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Sophie Hellstrand
- Department of Clinical Sciences, Malmö, Diabetes and Cardiovascular Disease - Genetic Epidemiology, Lund University, Malmö, Sweden
| | - Bodil Ohlsson
- Department of Internal Medicine, Skåne University Hospital, Lund University, Malmö, Sweden
| | - Maria Wennberg
- Department of Public Health and Clinical Medicine, Section of Sustainable Health, Umeå University, Umeå, Sweden
| | | | - Guri Skeie
- Department of Community Medicine, University of Tromsø, Arctic University of Norway, Tromsø, Norway
| | - Magritt Brustad
- Department of Community Medicine, University of Tromsø, Arctic University of Norway, Tromsø, Norway
| | - Elisabete Weiderpass
- Office of the Director, International Agency For Research on Cancer (IARC), Lyon, France
| | - Amanda J Cross
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London, United Kingdom
| | - Heather Ward
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London, United Kingdom
| | - Elio Riboli
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London, United Kingdom
| | - Teresa Norat
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London, United Kingdom
| | - Veronique Chajes
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| | - Marc J Gunter
- Nutrition and Metabolism Section, International Agency for Research on Cancer (IARC), Lyon, France
| |
Collapse
|
13
|
Kim Y, Kim J. Intake or Blood Levels of n-3 Polyunsaturated Fatty Acids and Risk of Colorectal Cancer: A Systematic Review and Meta-analysis of Prospective Studies. Cancer Epidemiol Biomarkers Prev 2019; 29:288-299. [PMID: 31767566 DOI: 10.1158/1055-9965.epi-19-0931] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 10/01/2019] [Accepted: 11/20/2019] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Previous results of the association between n-3 polyunsaturated fatty acids (PUFA) and colorectal cancer were inconsistent. We conducted a systematic review and meta-analysis of prospective studies. METHODS The PubMed and Embase databases were searched through July 10, 2019, followed by a manual search. A random-effects model was used. RESULTS Twenty prospective studies, including 18,102 cases and 1,360,046 participants, were included. The pooled RR of colorectal cancer for the highest versus lowest category of n-3 PUFA intake was 0.97 [95% confidence interval (CI), 0.90-1.04]. Regarding the type of n-3 PUFA, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) intakes were inversely associated with 11% (RR = 0.89; 95% CI, 0.80-0.99) and 12% (RR = 0.88; 95% CI, 0.81-0.96) lower colorectal cancer risks, respectively, in the comparison of the highest versus lowest category. Increments of 0.1 g/day of EPA (RR = 0.95; 95% CI, 0.92-0.98) and DHA (RR = 0.97; 95% CI, 0.95-0.99) intakes were associated with a lower colorectal cancer risk. Regarding the blood levels of n-3 PUFAs, the pooled RR of colorectal cancer for the highest versus lowest category of blood levels of n-3 PUFAs was 0.79 (95% CI, 0.64-0.98). The risk of colorectal cancer decreased by 4% for every 1% increase in blood n-3 PUFA levels (RR = 0.96; 95% CI, 0.92-1.00). CONCLUSIONS High blood n-3 PUFA levels are inversely associated with colorectal cancer risk, and high n-3 PUFA intake is suggestively associated with lower colorectal cancer risk. IMPACT Our findings suggest that high blood n-3 PUFA levels may be associated with reduced colorectal cancer risk, but further studies are needed.
Collapse
Affiliation(s)
- Youngyo Kim
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, South Korea
| | - Jeongseon Kim
- Department of Cancer Biomedical Science, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, South Korea.
| |
Collapse
|
14
|
Wang H, Zhang S, Shen Q, Zhu MJ. A metabolomic explanation on beneficial effects of dietary Goji on intestine inflammation. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.12.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
|
15
|
Jolanta B, Joanna B, Diana HZ, Krystyna S. Composition and Concentration of Serum Fatty Acids of Phospholipids Depend on Tumour Location and Disease Progression in Colorectal Patients. J Med Biochem 2018; 37:39-45. [PMID: 30581340 PMCID: PMC6294105 DOI: 10.1515/jomb-2017-0031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Accepted: 05/22/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Polyunsaturated fatty acids (PUFAs) play a role in the development/progression of colon cancer. The aim of the study was to assess the relation between serum phospholipids PUFAs, colorectal tumour localization and disease progression. METHODS A total of 67 patients (18 with proximal colon, 17 with distal colon and 32 with rectal tumour localization) as well as 16 controls were studied. One year after surgery, 33 patients had disease progression. Serum levels of C16:1(n-7), C18:1(n-9), C18:3(n-3), C20:5(n-3), C22:6(n- 3), C18:2(n-6), C20:2(n-6), C20:4(n-6) fatty acids of se - rum phospholipids were quantitatively measured before surgery by gas-chromatography. RESULTS Significantly higher mean value of C18:2, as compared to control, has been noted only for patients with proximal (p<0.05) and distal tumour (p<0.03) localization. The lower mean level of C20:5 and unsaturation index (UI) were observed in colorectal cancer patients regardless the tumour localization, but the statistical difference was noted only for patients with proximal tumours (p<0.05, p<0.03). In patients with proximal tumours, significantly lower mean level of C20:4 and UI were noted in patients with disease progression, as compared to patients with proximal tumours without disease progression (p<0.05). CONCLUSION The evaluation of PUFAs as a risk/prognostic factor in colorectal cancer patients should take into account tumour localization as a dependent variable.
Collapse
Affiliation(s)
- Bugajska Jolanta
- Clinical Biochemistry Department, IP, Jagiellonian University College of Medicine, Krakow, Poland
| | - Berska Joanna
- Clinical Biochemistry Department, IP, Jagiellonian University College of Medicine, Krakow, Poland
| | | | - Sztefko Krystyna
- Clinical Biochemistry Department, IP, Jagiellonian University College of Medicine, Krakow, Poland
| |
Collapse
|
16
|
Butler LM, Yuan JM, Huang JY, Su J, Wang R, Koh WP, Ong CN. Plasma fatty acids and risk of colon and rectal cancers in the Singapore Chinese Health Study. NPJ Precis Oncol 2017; 1:38. [PMID: 29872717 PMCID: PMC5871823 DOI: 10.1038/s41698-017-0040-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 09/22/2017] [Accepted: 10/17/2017] [Indexed: 01/12/2023] Open
Abstract
Fatty acid composition in plasma captures both dietary intake and endogenous synthesis. Prospective analyses of plasma fatty acid composition are needed to establish the role of monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs) on risk of developing colorectal cancer. To evaluate associations between plasma fatty acid composition and colon or rectal cancer risk separately, a nested case-control study of 350 colorectal (211 colon and 139 rectal) cancer cases and an equal number of individually matched control subjects was conducted within the Singapore Chinese Health Study, a cohort of 63,257 men and women recruited between 1993 and 1998. Fatty acids in pre-diagnostic plasma were quantified using gas chromatography–tandem mass spectrometry. Conditional odds ratios (ORs) and 95% confidence intervals (CIs) comparing highest to lowest quartiles are presented. For colon cancer, inverse associations were reported with higher essential PUFAs, α-linolenic acid (OR = 0.41; 95% CI: 0.23, 0.73; Ptrend = 0.005) and linoleic acid (OR = 0.43; 95% CI: 0.23, 0.82; Ptrend = 0.008). Higher desaturase activity in the n-6 PUFA synthesis pathway estimated by the arachidonic:linoleic acid ratio was associated with increased colon cancer risk (OR = 3.53; 95% CI: 1.82, 6.85; Ptrend = 0.006), whereas higher desaturase activity in the MUFA synthesis pathway estimated by the oleic:stearic acid ratio was associated with decreased colon cancer risk (OR = 0.42; 95% CI: 0.19, 0.92; Ptrend = 0.024). There was no significant association between the essential fatty acids or the desaturase indices and rectal cancer risk. Endogenous synthesis of arachidonic and oleic acids has an impact on colon cancer development. Higher consumption of “good fats,” or their natural creation by the body, may help protect people from colon cancer. Jian-Min Yuan from the University of Pittsburgh, USA, and colleagues used samples from the Singapore Chinese Health Study to examine fatty acids contained in blood plasma from 350 people who later developed colorectal cancer and an equal number of matched control individuals. They found that higher blood levels—which reflect dietary intake—of the essential polyunsaturated fatty acids linolenic acid and α-linolenic acid were associated with a lower risk of colon cancer. So was oleic acid, a monounsaturated fat created by the body, whereas conversion of linolenic acid to another fatty acid called arachidonic acid boosted colon cancer risk. No effect was seen on rectal cancer risk. Diets rich in linolenic acid may help prevent colon cancer.
Collapse
Affiliation(s)
- Lesley M Butler
- 1Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA USA.,2Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA USA
| | - Jian-Min Yuan
- 1Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA USA.,2Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA USA
| | - Joyce Yongxu Huang
- 1Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA USA.,2Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA USA
| | - Jin Su
- 3NUS Environmental Research Institute (NERI), National University of Singapore, Singapore, Singapore
| | - Renwei Wang
- 1Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA USA
| | - Woon-Puay Koh
- 4Duke-NUS Graduate Medical School Singapore, Singapore, Singapore.,5Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Choon-Nam Ong
- 3NUS Environmental Research Institute (NERI), National University of Singapore, Singapore, Singapore
| |
Collapse
|
17
|
Song M, Zhang X, Meyerhardt JA, Giovannucci EL, Ogino S, Fuchs CS, Chan AT. Marine ω-3 polyunsaturated fatty acid intake and survival after colorectal cancer diagnosis. Gut 2017; 66:1790-1796. [PMID: 27436272 PMCID: PMC5247396 DOI: 10.1136/gutjnl-2016-311990] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 05/31/2016] [Accepted: 06/12/2016] [Indexed: 12/08/2022]
Abstract
OBJECTIVE Experimental evidence supports an antineoplastic activity of marine ω-3 polyunsaturated fatty acids (ω-3 PUFAs; including eicosapentaenoic acid, docosahexaenoic acid and docosapentaenoic acid). However, the influence of ω-3 PUFAs on colorectal cancer (CRC) survival is unknown. DESIGN Within the Nurses' Health Study and Health Professionals Follow-up Study, we prospectively studied CRC-specific and overall mortality in a cohort of 1659 patients with CRC according to intake of marine ω-3 PUFAs and its change after diagnosis. RESULTS Higher intake of marine ω-3 PUFAs after CRC diagnosis was associated with lower risk of CRC-specific mortality (p for trend=0.03). Compared with patients who consumed <0.10 g/day of marine ω-3 PUFAs, those consuming at least 0.30 g/day had an adjusted HR for CRC-specific mortality of 0.59 (95% CI 0.35 to 1.01). Patients who increased their marine ω-3 PUFA intake by at least 0.15 g/day after diagnosis had an HR of 0.30 (95% CI 0.14 to 0.64, p for trend <0.001) for CRC deaths, compared with those who did not change or changed their intake by <0.02 g/day. No association was found between postdiagnostic marine ω-3 PUFA intake and all-cause mortality (p for trend=0.47). CONCLUSIONS High marine ω-3 PUFA intake after CRC diagnosis is associated with lower risk of CRC-specific mortality. Increasing consumption of marine ω-3 PUFAs after diagnosis may confer additional benefits to patients with CRC.
Collapse
Affiliation(s)
- Mingyang Song
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA,Division of Gastroenterology, Massachusetts General Hospital, Boston, MA,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Xuehong Zhang
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA
| | - Jeffrey A. Meyerhardt
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - Edward L. Giovannucci
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA,Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA
| | - Shuji Ogino
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA,Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA,Division of MPE Molecular Pathological Epidemiology, Department of Pathology, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA
| | - Charles S. Fuchs
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA,Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - Andrew T. Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital and Harvard Medical School, Boston, MA,Division of Gastroenterology, Massachusetts General Hospital, Boston, MA,Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital, and Harvard Medical School, Boston, MA,Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA
| |
Collapse
|
18
|
Morin C, Rodríguez E, Blier PU, Fortin S. Potential Application of Eicosapentaenoic Acid Monoacylglyceride in the Management of Colorectal Cancer. Mar Drugs 2017; 15:md15090283. [PMID: 28869531 PMCID: PMC5618422 DOI: 10.3390/md15090283] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 08/23/2017] [Accepted: 08/30/2017] [Indexed: 01/01/2023] Open
Abstract
Background: There is increasing evidence that marine omega-3 oils are involved in the reduction of cancer risk and progression. However, the anticancer effect of omega-3 monoglyceride on colorectal cancer has yet to be assessed. The goal of this study was to evaluate the anti-cancer effects of eicosapentaenoic acid monoglyceride (MAG-EPA) in HCT116 colorectal carcinoma cells. Methods: The effect of MAG-EPA was evaluated in vitro on HCT116 cells and in vivo on mouse model of HCT116 xenograft. Results: Our data reveal that MAG-EPA decreased cell proliferation and induced apoptosis in HCT116 cells. In a xenograft mouse model, daily per os administration of MAG-EPA reduced tumor growth. Furthermore, MAG-EPA treatments decreased EGFR, VEGFR, and AKT activation pathways and reduced VEGF and HIF1α expression levels in tumors. Conclusion: MAG-EPA may promote apoptosis and inhibit growth of tumors by suppressing EGFR and VEGFR activation pathways. Altogether, these data provide new evidence regarding the mode of action of MAG-EPA in colorectal cancer cells.
Collapse
Affiliation(s)
| | - Enrique Rodríguez
- Department of Biology, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada.
| | - Pierre U Blier
- Department of Biology, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada.
| | - Samuel Fortin
- SCF Pharma, Ste-Luce, QC G0K 1P0, Canada.
- Department of Biology, Université du Québec à Rimouski, Rimouski, QC G5L 3A1, Canada.
| |
Collapse
|
19
|
Hou TY, Davidson LA, Kim E, Fan YY, Fuentes NR, Triff K, Chapkin RS. Nutrient-Gene Interaction in Colon Cancer, from the Membrane to Cellular Physiology. Annu Rev Nutr 2017; 36:543-70. [PMID: 27431370 DOI: 10.1146/annurev-nutr-071715-051039] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The International Agency for Research on Cancer recently released an assessment classifying red and processed meat as "carcinogenic to humans" on the basis of the positive association between increased consumption and risk for colorectal cancer. Diet, however, can also decrease the risk for colorectal cancer and be used as a chemopreventive strategy. Bioactive dietary molecules, such as n-3 polyunsaturated fatty acids, curcumin, and fermentable fiber, have been proposed to exert chemoprotective effects, and their molecular mechanisms have been the focus of research in the dietary/chemoprevention field. Using these bioactives as examples, this review surveys the proposed mechanisms by which they exert their effects, from the nucleus to the cellular membrane. In addition, we discuss emerging technologies involving the culturing of colonic organoids to study the physiological effects of dietary bioactives. Finally, we address future challenges to the field regarding the identification of additional molecular mechanisms and other bioactive dietary molecules that can be utilized in our fight to reduce the incidence of colorectal cancer.
Collapse
Affiliation(s)
- Tim Y Hou
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843
| | - Laurie A Davidson
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843.,Center for Translational Environmental Health Research, Texas A&M University, College Station, Texas 77843
| | - Eunjoo Kim
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Molecular and Cellular Medicine, Texas A&M University, College Station, Texas 77843
| | - Yang-Yi Fan
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843
| | - Natividad R Fuentes
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Faculty of Toxicology, Texas A&M University, College Station, Texas 77843
| | - Karen Triff
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843;
| | - Robert S Chapkin
- Program in Integrative Nutrition and Complex Diseases, Texas A&M University, College Station, Texas 77843; .,Department of Biochemistry and Biophysics, Texas A&M University, College Station, Texas 77843.,Department of Nutrition and Food Science, Texas A&M University, College Station, Texas 77843.,Faculty of Toxicology, Texas A&M University, College Station, Texas 77843.,Center for Translational Environmental Health Research, Texas A&M University, College Station, Texas 77843
| |
Collapse
|
20
|
Rifkin SB, Shrubsole MJ, Cai Q, Smalley WE, Ness RM, Swift LL, Zheng W, Murff HJ. PUFA levels in erythrocyte membrane phospholipids are differentially associated with colorectal adenoma risk. Br J Nutr 2017; 117:1615-1622. [PMID: 28660850 PMCID: PMC5891121 DOI: 10.1017/s0007114517001490] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Dietary intake of PUFA has been associated with colorectal neoplasm risk; however, results from observational studies have been inconsistent. Most prior studies have utilised self-reported dietary measures to assess fatty acid exposure which might be more susceptible to measurement error and biases compared with biomarkers. The purpose of this study was to determine whether erythrocyte phospholipid membrane PUFA percentages are associated with colorectal adenoma risk. We included data from 904 adenoma cases and 835 polyp-free controls who participated in the Tennessee Colorectal Polyp Study, a large colonoscopy-based case-control study. Erythrocyte membrane PUFA percentages were measured using GC. Conditional logistic regression was used to calculate adjusted OR for risk of colorectal adenomas with erythrocyte membrane PUFA. Higher erythrocyte membrane percentages of arachidonic acid was associated with an increased risk of colorectal adenomas (adjusted OR 1·66; 95 % CI 1·05, 2·62, P trend=0·02) comparing the highest tertile to the lowest tertile. The effect size for arachidonic acid was more pronounced when restricting the analysis to advanced adenomas only. Higher erythrocyte membrane EPA percentages were associated with a trend towards a reduced risk of advanced colorectal adenomas (P trend=0·05). Erythrocyte membrane arachidonic acid percentages are associated with an increased risk of colorectal adenomas.
Collapse
Affiliation(s)
- Samara B Rifkin
- 1Division of Gastroenterology and Hepatology,Johns Hopkins University School of Medicine,1800 Orleans Street,Baltimore, MD 21287,USA
| | - Martha J Shrubsole
- 2Division of Epidemiology,Vanderbilt University Medical Center,2525 West End Avenue,Suite 800,Nashville, TN 37203,USA
| | - Qiuyin Cai
- 2Division of Epidemiology,Vanderbilt University Medical Center,2525 West End Avenue,Suite 800,Nashville, TN 37203,USA
| | - Walter E Smalley
- 4Department of Health Policy,Vanderbilt University Medical Center,2525 West End Avenue,Suite 1200, Nashville, TN 37203,USA
| | - Reid M Ness
- 5Division of Gastroenterology,Vanderbilt University Medical Center,1211 Medical Center Drive,Nashville, TN 37232,USA
| | - Larry L Swift
- 6Department of Pathology, Microbiology and Immunology,Vanderbilt University Medical Center,1211 Medical Center Drive,Nashville, TN 37232,USA
| | - Wei Zheng
- 2Division of Epidemiology,Vanderbilt University Medical Center,2525 West End Avenue,Suite 800,Nashville, TN 37203,USA
| | - Harvey J Murff
- 3Geriatric Research Education and Clinical Center (GRECC),Department of Veterans Affairs,Tennessee Valley Healthcare System,1310 24th Avenue S,Nashville, TN 37212,USA
| |
Collapse
|
21
|
Murff HJ, Tindle HA, Shrubsole MJ, Cai Q, Smalley W, Milne GL, Swift LL, Ness RM, Zheng W. Smoking and red blood cell phospholipid membrane fatty acids. Prostaglandins Leukot Essent Fatty Acids 2016; 112:24-31. [PMID: 27637337 PMCID: PMC5028119 DOI: 10.1016/j.plefa.2016.08.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 08/15/2016] [Indexed: 01/16/2023]
Abstract
Smoking is associated with lower n-3 long chain polyunsaturated fatty acids (LCPUFA) concentrations; however, limited studies have accounted for dietary PUFA intake or whether tobacco dose or smoking duration influences this association. We measured red blood cell phospholipid (RBC) membrane concentrations of fatty acids in 126 current smokers, 311 former smokers, and 461 never smokers using gas liquid chromatography and tandem mass spectrometry. Smokers had lower RBC membrane percentages of total n-3 LCPUFAs compared to former smokers or never smokers (median percent: 5.46, [interquartile range (IQR) 4.52, 6.28] versus 6.39; [IQR: 5.18, 7.85] versus 6.59; [IQR 5.34, 8.01]) (p<0.001) and this association remained after adjusting for dietary PUFA intake. Duration of smoking and cigarettes per day were not associated with RBC membrane n-3 LCPUFA differences. Smoking is associated with lower n-3 LCPUFA RBC membrane percentages and this association was not influenced by diet or smoking dose or duration.
Collapse
Affiliation(s)
- H J Murff
- Division of General Medicine and Public Health, Vanderbilt University Medicine Center, Nashville, TN, United States; GRECC, Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, United States; Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, United States.
| | - H A Tindle
- Division of General Medicine and Public Health, Vanderbilt University Medicine Center, Nashville, TN, United States; Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, United States
| | - M J Shrubsole
- GRECC, Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, United States; Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, United States; Division of Epidemiology, Vanderbilt University Medical Center, United States
| | - Q Cai
- Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, United States; Division of Epidemiology, Vanderbilt University Medical Center, United States
| | - W Smalley
- Division of Gastroenterology, Hepatology and Nutrition, Vanderbilt University Medical Center, United States; Department of Health Policy, Vanderbilt University Medical Center, United States
| | - G L Milne
- Division of Clinical Pharmacology, Vanderbilt University Medical Center, United States
| | - L L Swift
- Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, United States
| | - R M Ness
- Division of Gastroenterology, Hepatology and Nutrition, Vanderbilt University Medical Center, United States
| | - W Zheng
- GRECC, Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, TN, United States; Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, United States; Division of Epidemiology, Vanderbilt University Medical Center, United States
| |
Collapse
|
22
|
Stark KD, Van Elswyk ME, Higgins MR, Weatherford CA, Salem N. Global survey of the omega-3 fatty acids, docosahexaenoic acid and eicosapentaenoic acid in the blood stream of healthy adults. Prog Lipid Res 2016; 63:132-52. [PMID: 27216485 DOI: 10.1016/j.plipres.2016.05.001] [Citation(s) in RCA: 333] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 05/14/2016] [Accepted: 05/18/2016] [Indexed: 02/05/2023]
Abstract
Studies reporting blood levels of the omega-3 polyunsaturated fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), were systematically identified in order to create a global map identifying countries and regions with different blood levels. Included studies were those of healthy adults, published in 1980 or later. A total of 298 studies met all inclusion criteria. Studies reported fatty acids in various blood fractions including plasma total lipids (33%), plasma phospholipid (32%), erythrocytes (32%) and whole blood (3.0%). Fatty acid data from each blood fraction were converted to relative weight percentages (wt.%) and then assigned to one of four discrete ranges (high, moderate, low, very low) corresponding to wt.% EPA+DHA in erythrocyte equivalents. Regions with high EPA+DHA blood levels (>8%) included the Sea of Japan, Scandinavia, and areas with indigenous populations or populations not fully adapted to Westernized food habits. Very low blood levels (≤4%) were observed in North America, Central and South America, Europe, the Middle East, Southeast Asia, and Africa. The present review reveals considerable variability in blood levels of EPA+DHA and the very low to low range of blood EPA+DHA for most of the world may increase global risk for chronic disease.
Collapse
Affiliation(s)
- Ken D Stark
- University of Waterloo, Department of Kinesiology, 200 University Avenue, Waterloo, ON, N2L 3G1, Canada.
| | - Mary E Van Elswyk
- Scientific Affairs, Van Elswyk Consulting, Inc., 10350 Macedonia St., Longmont, CO 80503, USA.
| | - M Roberta Higgins
- MEDetect Clinical Information Associates, Inc., PO Box 152, Skippack, PA 19474, USA.
| | | | - Norman Salem
- DSM Nutritional Products Ltd., 6480 Dobbin Road, Columbia, MD 21045, USA.
| |
Collapse
|
23
|
Gu Z, Shan K, Chen H, Chen YQ. n-3 Polyunsaturated Fatty Acids and their Role in Cancer Chemoprevention. ACTA ACUST UNITED AC 2015; 1:283-294. [PMID: 26457243 DOI: 10.1007/s40495-015-0043-9] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Polyunsaturated fatty acids (PUFAs), including omega-3 (n-3) and omega-6 (n-6) PUFAs, are essential for human health. Recent research shows n-3 PUFAs and their mediators can inhibit inflammation, angiogenesis and cancer via multiple mechanisms, including reduced release of n-6 fatty acid arachidonic acid from cell membranes, inhibition of enzymatic activities, and direct competition with arachidonic acid for enzymatic conversions. In this review, we discuss inflammation-related cancer, anti-inflammatory effects of n-3 PUFA lipid mediators, antineoplastic activities of n-3 PUFA in vitro and in vivo, and present an update on recent human trials.
Collapse
Affiliation(s)
- Zhennan Gu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, P.R. China ; The Synergistic Innovation Center for Food Safety and Nutrition, Wuxi 214122, P.R. China ; Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| | - Kai Shan
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, P.R. China ; The Synergistic Innovation Center for Food Safety and Nutrition, Wuxi 214122, P.R. China
| | - Haiqin Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, P.R. China ; The Synergistic Innovation Center for Food Safety and Nutrition, Wuxi 214122, P.R. China
| | - Yong Q Chen
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, Jiangnan University, Wuxi 214122, P.R. China ; The Synergistic Innovation Center for Food Safety and Nutrition, Wuxi 214122, P.R. China ; Department of Cancer Biology, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA
| |
Collapse
|
24
|
Song M, Garrett WS, Chan AT. Nutrients, foods, and colorectal cancer prevention. Gastroenterology 2015; 148:1244-60.e16. [PMID: 25575572 PMCID: PMC4409470 DOI: 10.1053/j.gastro.2014.12.035] [Citation(s) in RCA: 406] [Impact Index Per Article: 45.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 11/26/2014] [Accepted: 12/01/2014] [Indexed: 02/07/2023]
Abstract
Diet has an important role in the development of colorectal cancer. In the past few decades, findings from extensive epidemiologic and experimental investigations have linked consumption of several foods and nutrients to the risk of colorectal neoplasia. Calcium, fiber, milk, and whole grains have been associated with a lower risk of colorectal cancer, and red meat and processed meat have been associated with an increased risk. There is substantial evidence for the potential chemopreventive effects of vitamin D, folate, fruits, and vegetables. Nutrients and foods also may interact, as a dietary pattern, to influence colorectal cancer risk. Diet likely influences colorectal carcinogenesis through several interacting mechanisms. These include the direct effects on immune responsiveness and inflammation, and the indirect effects of overnutrition and obesity-risk factors for colorectal cancer. Emerging evidence also implicates the gut microbiota as an important effector in the relationship between diet and cancer. Dietary modification therefore has the promise of reducing colorectal cancer incidence.
Collapse
Affiliation(s)
- Mingyang Song
- Department of Nutrition, Harvard School of Public Health, Boston, MA,Department of Epidemiology, Harvard School of Public Health, Boston, MA
| | - Wendy S. Garrett
- Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA,Department of Genetics and Complex Diseases, Harvard School of Public Health, Boston, MA,Department of Medicine, Harvard Medical School, Boston, MA,Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA
| | - Andrew T. Chan
- Department of Medicine, Harvard Medical School, Boston, MA,Channing Division of Network Medicine, Department of Medicine, Harvard Medical School, Brigham and Women's Hospital, Boston, MA,Division of Gastroenterology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
| |
Collapse
|
25
|
Abstract
Increasingly, the gut microbiome is implicated in the etiology of cancer, not only as an infectious agent but also by altering exposure to dietary compounds that influence disease risk. Whereas the composition and metabolism of the gut microbiome is influenced by diet, the gut microbiome can also modify dietary exposures in ways that are beneficial or detrimental to the human host. The colonic bacteria metabolize macronutrients, either as specialists or in consortia of bacteria, in a variety of diverse metabolic pathways. Microbial metabolites of diet can also be epigenetic activators of gene expression that may influence cancer risk in humans. Epigenetics involves heritable changes in gene expression via post-translational and post-transcriptional modifications. Microbial metabolites can influence epigenetics by altering the pool of compounds used for modification or by directly inhibiting enzymes involved in epigenetic pathways. Colonic epithelium is immediately exposed to these metabolites, although some metabolites are also found in systemic circulation. In this review, we discuss the role of the gut microbiome in dietary metabolism and how microbial metabolites may influence gene expression linked to colon cancer risk.
Collapse
|
26
|
Yang K, Li H, Dong J, Dong Y, Wang CZ. Expression profile of polyunsaturated fatty acids in colorectal cancer. World J Gastroenterol 2015; 21:2405-2412. [PMID: 25741148 PMCID: PMC4342917 DOI: 10.3748/wjg.v21.i8.2405] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2014] [Revised: 09/18/2014] [Accepted: 10/15/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the relationship between the metabolism of polyunsaturated fatty acids (PUFAs) and tumor-associated factors for predicting the outcome of colorectal carcinoma (CRC) in Chinese patients.
METHODS: Fresh-frozen malignant and normal tissues from 82 Chinese patients with CRC were analyzed for PUFA composition using gas-liquid chromatography. The levels of vascular endothelial growth factor (VEGF), cyclooxygenase-2 (COX-2), prostaglandin E2 and platelet-derived growth factor (PDGF) were measured by enzyme-linked immunosorbent assay, and the levels of VEGF, p53 and Ki-67 were measured by immunohistochemistry.
RESULTS: In malignant tissue, compared with normal tissue, the levels of total ω-6 PUFAs (24.64% ± 3.41% vs 26.77% ± 3.37%, P = 0.00) and linoleic acid (LA) (15.46% ± 3.51% vs 18.30% ± 2.83%, P < 0.01) were lower, whereas the levels of total ω-3 PUFAs (1.58% ± 0.74% vs 1.35% ± 0.60%, P < 0.01) and dihomo-gamma-linolenic acid (DGLA) (1.32% ± 0.69% vs 0.85% ± 0.29%, P < 0.01) were significantly higher. The ratios of arachidonic acid (AA)/LA (0.53 ± 0.22 vs 0.42 ± 0.19, P < 0.01) and AA/total ω-6 PUFAs (0.31 ± 0.09 vs 0.27 ± 0.10, P < 0.01) were also significantly higher in malignant tissue. The levels of PDGF (353.10 ± 148.85 pg/mL vs 286.09 ± 104.91 pg/mL, P < 0.01), COX-2 (125.21 ± 70.29 ng/mL vs 67.06 ± 42.22 ng/mL, P < 0.01) and VEGF (357.11 ± 128.76 pg/mL vs 211.38 ± 99.47 pg/mL, P < 0.01) were also higher in malignant tissue compared to normal tissue. COX-2 was inversely correlated with LA (R = -0.3244, P < 0.05) and positively correlated with AA/total ω-6 PUFAs (R = 0.3083, P < 0.05) and AA/LA (R = 0.3001, P < 0.05). The tissue level of LA was highest in poorly differentiated tumors (19.9% ± 6.3%, P < 0.05), while the ratio of AA/ω-3 PUFAs was lowest in these tumors (10.8 ± 2.6, P < 0.05). In VEGF-positive tumors, the level of LA was higher (16.2% ± 3.7% vs 13.9% ± 2.7%, P < 0.01), while the AA/ω-3PUFA, AA/ω-6 PUFA, and AA/LA ratios were lower than in VEGF-negative tumors (5.0 ± 1.8 vs 6.7 ± 3.3, 0.30 ± 0.09 vs 0.34 ± 0.09, 0.50 ± 0.21 vs 0.61 ± 0.21, P < 0.01).
CONCLUSION: The metabolism of PUFAs may play an important role in the evolution of inflammation-driven tumorigenesis in CRC and may be considered a potential marker for prognosis.
Collapse
|
27
|
Hodge AM, Williamson EJ, Bassett JK, MacInnis RJ, Giles GG, English DR. Dietary and biomarker estimates of fatty acids and risk of colorectal cancer. Int J Cancer 2015; 137:1224-34. [PMID: 25683336 DOI: 10.1002/ijc.29479] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 02/04/2015] [Indexed: 12/16/2022]
Abstract
The associations between intake of or circulating fatty acids and risk of colorectal cancer (CRC) are unclear. We examined prospectively the associations between dietary or biomarker fatty acids and CRC. For 41,514 men and women, aged 40-69 years, baseline (1990-94) dietary intakes of fatty acids were estimated using a food frequency questionnaire and plasma phospholipid (PPL) fatty acids were measured for 4,205 participants including 395 CRC cases, according to a case-cohort design. Hazard ratios were computed using Cox regression adjusting for education, alcohol intake, smoking status, physical activity and total energy intake; and stratified for gender, ethnicity and family history of cancer, with age as the time scale. We assessed the heterogeneity of associations with colon and rectal cancers. PPL saturated fatty acids (SFAs) were positively associated with CRC risk, while total n-3 polyunsaturated fatty acids (PUFA) and long chain marine n-3 PUFAs showed inverse associations, significant only for 22:5 n-3. No significant associations were observed for dietary fatty acid intakes but positive associations with CRC of borderline significance were seen for both dietary and PPL linoleic acid. Positive associations with dietary palmitic acid (16:0), MUFAs and n-6 PUFAs were seen for rectal but not colon cancers. PPL 22:6 n-3 was inversely associated with rectal cancer. Limiting intakes of SFAs and MUFAs could be assisted by following existing guidelines to limit red and processed meats which are important sources in the Australian diet. Our observations regarding linoleic acid should be examined further.
Collapse
Affiliation(s)
- Allison M Hodge
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, 3004, Victoria, Australia
| | - Elizabeth J Williamson
- Farr Institute of Health Informatics Research, London, NW1 2DA, United Kingdom
- Department of Medical Statistics, London School of Hygiene & Tropical Medicine, London, WC1E 7HT, United Kingdom
| | - Julie K Bassett
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, 3004, Victoria, Australia
| | - Robert J MacInnis
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, 3004, Victoria, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Victoria, Australia
| | - Graham G Giles
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, 3004, Victoria, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Victoria, Australia
| | - Dallas R English
- Cancer Epidemiology Centre, Cancer Council Victoria, Melbourne, 3004, Victoria, Australia
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Victoria, Australia
| |
Collapse
|
28
|
Cottet V, Vaysse C, Scherrer ML, Ortega-Deballon P, Lakkis Z, Delhorme JB, Deguelte-Lardière S, Combe N, Bonithon-Kopp C. Fatty acid composition of adipose tissue and colorectal cancer: a case-control study. Am J Clin Nutr 2015; 101:192-201. [PMID: 25527763 DOI: 10.3945/ajcn.114.088948] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Unlike experimental results, epidemiologic studies that used dietary questionnaires were not convincing as regards the relations between dietary fatty acids (FAs) and risk of colorectal cancer (CRC). The FA composition of adipose tissue, which is considered to be an indicator of dietary intake over 2-3 y because of the slow turnover rate, appears promising but has so far been rarely used to explore the relation between CRC and exogenous or endogenously produced FAs. OBJECTIVE In this case-control study, we aimed to investigate associations between risk of CRC and the FA composition of subcutaneous adipose tissue and product-to-precursor ratios as indexes of enzymatic activities. DESIGN From 2008 to 2011, we recruited 203 cases with newly diagnosed CRC and elective surgery with a curative intent and 223 control subjects with planned abdominal surgery for benign disease and no history of CRC or polyp resection. During surgery, abdominal subcutaneous adipose tissue samples were optimally collected, stored, and analyzed by using high-performance gas chromatography. Multivariate logistic regression was used to estimate ORs for CRC in relation to individual FAs divided into tertiles according to the FA distribution in controls. RESULTS After adjustment, significant positive associations with CRC risk were observed in highest compared with lowest tertiles of 16:1n-9 (OR: 1.75; 95% CI: 1.00, 3.06; P-trend = 0.045), 20:3n-6 (OR: 1.79; 95% CI: 1.01, 3.17; P-trend = 0.038), 22:5n-3 (OR: 1.82; 95% CI: 1.06, 3.12; P-trend = 0.023), and the ratio of 18:2n-6 to 18:3n-3 (OR: 2.34; 95% CI: 1.37, 3.98; P-trend = 0.001). Significant inverse associations were observed for 18:3n-3 (OR: 0.48; 95% CI: 0.29, 0.81; P-trend = 0.007). Several product-to-precursor ratios showed significant differences between cases and controls in particular ratios that reflected elongase 2/5 activity. CONCLUSIONS CRC patients presented higher concentrations of some FAs but lower concentrations of α-linolenic acid in their subcutaneous adipose tissue than did controls. These results may reflect both dietary patterns and altered FA metabolism but require mechanistic explorations.
Collapse
Affiliation(s)
- Vanessa Cottet
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Carole Vaysse
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Marie-Lorraine Scherrer
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Pablo Ortega-Deballon
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Zaher Lakkis
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Jean-Baptiste Delhorme
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Sophie Deguelte-Lardière
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Nicole Combe
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| | - Claire Bonithon-Kopp
- From the Institut national de la santé et de la recherche médicale (INSERM) Unité mixte de recherche 866 (VC and CB-K) and INSERM CIC 1432, Clinical Epidemiology Team (CB-K), Faculté de Médecine de Dijon, Dijon, France; the Institut des Corps Gras-Equipe Nutrition Métabolisme & Santé, Talence, France (CV and NC); the Department of General and Digestive Surgery, University Hospital of Nancy, Hôpital Brabois, Vandoeuvre-les-Nancy, France (M-LS); the Department of Digestive Surgical Oncology (PO-D), University Hospital of Dijon (VC and CB-K), Dijon, France; the Department of General, Digestive and Oncologic Surgery, University Hospital of Besançon, Besançon, France (ZL); the Department Of General and Digestive Surgery, University Hospital Of Strasbourg, Hôpital de Hautepierre, Strasbourg, France (J-BD); and the Department of General, Digestive and Endocrine Surgery, University Hospital of Reims, Reims, France (SD-L)
| |
Collapse
|
29
|
Lipids and Health. Lipids 2014. [DOI: 10.1201/b17656-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
30
|
Yang B, Wang FL, Ren XL, Li D. Biospecimen long-chain N-3 PUFA and risk of colorectal cancer: a meta-analysis of data from 60,627 individuals. PLoS One 2014; 9:e110574. [PMID: 25375637 PMCID: PMC4222788 DOI: 10.1371/journal.pone.0110574] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Accepted: 09/15/2014] [Indexed: 11/27/2022] Open
Abstract
Background Several prospective cohort and case-control studies reported the inconsistent association between biospecimen composition of C20 and C22 long-chain (LC) n-3 polyunsaturated fatty acid (PUFA) and colorectal cancer (CRC) risk. The aim of the present study was to investigate the association of biospecimen LC n-3 PUFA with CRC risk based on prospective cohort and case-control studies. Methods and Results Cochrane Library, PubMed, and EMBASE database were searched up to February 2014 for eligible studies. Risk ratios (RRs) or odds ratios (ORs) from prospective and case-control studies were combined using a random-effects model in the highest vs. lowest categorical analysis. Nonlinear dose-response relationships were assessed using restricted cubic spline regression models. Difference in tissue composition of LC n-3 PUFA between cases and noncases was analyzed as standardized mean difference (SMD). Three prospective cohort studies and 8 case-control studies were included in the present study, comprising 60,627 participants (1,499 CRC cases and 59,128 noncases). Higher biospecimen LC n-3 PUFA was significantly associated with a lower risk of CRC in case-control (pooled OR: 0.76; 95% CI: 0.59, 0.97; I2 = 10.00%) and prospective cohort studies (pooled RR: 0.70; 95% CI: 0.55, 0.88; I2 = 0.00%), respectively. A significant dose-response association was found of biospecimen C20:5n-3 (P for nonlinearity = 0.02) and C22:6n-3 (P for trend = 0.01) with CRC risk, respectively. Subjects without CRC have significantly higher biospecimen compositions of C20:5n-3 (SMD: 0.27; 95%: 0.13, 0.41), C22:6n-3 (SMD: 0.23; 95%: 0.11, 0.34) and total LC n-3 PUFA (SMD: 0.22; 95% CI: 0.07, 0.37) compared with those with CRC. Conclusions The present evidence suggests human tissue compositions of LC n-3 PUFA may be an independent predictive factor for CRC risk, especially C20:5n-3 and C22:6n-3. This needs to be confirmed with more large-scale prospective cohort studies.
Collapse
Affiliation(s)
- Bo Yang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China; Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, China
| | - Feng-Lei Wang
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| | - Xiao-Li Ren
- Medical Laboratory Animal Center, Wenzhou Medical University, Wenzhou, China
| | - Duo Li
- Department of Food Science and Nutrition, Zhejiang University, Hangzhou, China
| |
Collapse
|
31
|
Song M, Chan AT, Fuchs CS, Ogino S, Hu FB, Mozaffarian D, Ma J, Willett WC, Giovannucci EL, Wu K. Dietary intake of fish, ω-3 and ω-6 fatty acids and risk of colorectal cancer: A prospective study in U.S. men and women. Int J Cancer 2014; 135:2413-23. [PMID: 24706410 DOI: 10.1002/ijc.28878] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Accepted: 03/12/2014] [Indexed: 01/25/2023]
Abstract
The association between fish, ω-3 and ω-6 polyunsaturated fatty acid (PUFA) intake and risk of colorectal cancer (CRC) remains inconclusive. Recent prospective studies suggest that the relationship may vary by gender, subsite and duration of follow-up. We followed 123,529 US adults (76,386 women and 47,143 men) without a history of cancer at baseline for 24 to 26 years. Fish and PUFA intake was assessed at baseline and updated every 4 years by using a validated food-frequency questionnaire. We found no overall association between fish, ω-3 and ω-6 PUFA intake and CRC risk with hazard ratio (HR) of 1.03 [95% confidence interval (CI): 0.89-1.20] comparing marine ω-3 intake of ≥ 0.30 g/d versus <0.15 g/d among women and 1.05 (95% CI: 0.85-1.30) comparing intake of ≥ 0.41 g/d versus <0.16 g/d among men. However, fish and marine ω-3 PUFA intake appeared to be positively associated with risk of distal colon cancer in both men and women and inversely with risk of rectal cancer in men. In an analysis based on a limited number of cases, marine ω-3 PUFA intake assessed 12-16 years before diagnosis tended to be inversely associated with CRC risk in men (HR: 0.76; 95% CI: 0.52-1.10). In conclusion, although no overall association between fish, ω-3 or ω-6 PUFA intake was observed with CRC risk, marine ω-3 PUFA may be differentially associated with risk of distal colon and rectal cancers and a long latency may be needed for its protection against CRC in men.
Collapse
Affiliation(s)
- Mingyang Song
- Department of Nutrition, Harvard School of Public Health, Boston, MA; Department of Epidemiology, Harvard School of Public Health, Boston, MA
| | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Pericleous M, Mandair D, Caplin ME. Diet and supplements and their impact on colorectal cancer. J Gastrointest Oncol 2013; 4:409-23. [PMID: 24294513 DOI: 10.3978/j.issn.2078-6891.2013.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2012] [Accepted: 01/17/2013] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Colorectal cancer is the third commonest cancer and the third leading cause of cancer death among men and women. It has been proposed that dietary factors are responsible for 70-90% of colorectal cancer and diet optimization may prevent most cases. AIM To evaluate the role of dietary components and supplements in colorectal cancer. METHODS Bibliographical searches were performed in Pubmed for the terms "diet and colorectal cancer", "diet and colon cancer", "diet and rectal cancer", "nutrition and colorectal cancer", "probiotics and colorectal cancer", "prebiotics and colorectal cancer", "alcohol and cancer" and "colorectal cancer epidemiology". RESULTS Consumption of processed or red meat, especially when cooked at high temperatures may be associated with increased risk of colorectal cancer. The evidence for dietary fibre is unclear but foods that contain high amounts of fibre are usually rich in polyphenols which have been shown to alter molecular processes that can encourage colorectal carcinogenesis. Meta-analyses provide evidence on the benefits of circulating, diet-derived and supplemented, vitamin D and Calcium. We also found that diets rich in Folate may prevent colorectal carcinoma. The evidence on dietary micronutrients such as Zinc and Selenium in association with colorectal cancer is not conclusive. It has been suggested that there may be a direct association between alcohol intake and colorectal cancer. In vitro and in vivo studies have highlighted a possible protective role of prebiotics and probiotics. CONCLUSIONS The lack of randomized trials and the presence of confounding factors including smoking, physical activity, obesity and diabetes may often yield inconclusive results. Carefully designed randomized trials are recommended.
Collapse
|
33
|
Li H, Zhu F, Sun Y, Li B, Oi N, Chen H, Lubet RA, Bode AM, Dong Z. Select dietary phytochemicals function as inhibitors of COX-1 but not COX-2. PLoS One 2013; 8:e76452. [PMID: 24098505 PMCID: PMC3789677 DOI: 10.1371/journal.pone.0076452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 08/28/2013] [Indexed: 12/02/2022] Open
Abstract
Recent clinical trials raised concerns regarding the cardiovascular toxicity of selective cyclooxygenase-2 (COX-2) inhibitors. Many active dietary factors are reported to suppress carcinogenesis by targeting COX-2. A major question was accordingly raised: why has the lifelong use of phytochemicals that likely inhibit COX-2 presumably not been associated with adverse cardiovascular side effects. To answer this question, we selected a library of dietary-derived phytochemicals and evaluated their potential cardiovascular toxicity in human umbilical vein endothelial cells. Our data indicated that the possibility of cardiovascular toxicity of these dietary phytochemicals was low. Further mechanistic studies revealed that the actions of these phytochemicals were similar to aspirin in that they mainly inhibited COX-1 rather than COX-2, especially at low doses.
Collapse
Affiliation(s)
- Haitao Li
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
| | - Feng Zhu
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
| | - Yanwen Sun
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
| | - Bing Li
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
| | - Naomi Oi
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
| | - Hanyong Chen
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
| | - Ronald A. Lubet
- The National Institutes of Health, National Cancer Institute, Bethesda, Maryland, United States of America
| | - Ann M. Bode
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, Minnesota, United States of America
- * E-mail:
| |
Collapse
|
34
|
Kantor ED, Lampe JW, Peters U, Vaughan TL, White E. Long-chain omega-3 polyunsaturated fatty acid intake and risk of colorectal cancer. Nutr Cancer 2013; 66:716-27. [PMID: 24053119 PMCID: PMC3961554 DOI: 10.1080/01635581.2013.804101] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Research suggests that long-chain omega-3 polyunsaturated fatty acids (LC-PUFAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) have antineoplastic properties, yet evidence for association between LC-PUFAs and colorectal cancer (CRC) remains inconsistent. Using the VITamins And Lifestyle (VITAL) cohort, we evaluated how EPA/DHA intake, and its primary sources, fish oil supplement use and dark fish consumption, relate to CRC risk. A total of 68,109 Washington residents aged 50-76 completed a questionnaire between 2000-2002 and were followed for CRC through 2008 (n = 488). Persons using fish oil supplements on 4+ days/wk for 3+ yr experienced 49% lower CRC risk than nonusers (hazard ratio = 0.51, 95% CI = 0.26-1.00; P trend = 0.06). The association between fish oil use and decreased CRC risk was primarily observed for men (P interaction = 0.02; P trend men = 0.02; P trend women = 0.88) and for colon cancer (P difference = 0.05; P trend colon = 0.03; P trend rectum = 0.87). Although dark fish and total EPA + DHA intake were not associated with CRC risk overall, these associations varied by genetic risk (P interaction = 0.009 and 0.02, respectively), with inverse associations observed among low-moderate genetic risk groups and positive associations observed among high risk groups. Results suggest that associations between LC-PUFA intake and CRC may vary by gender, subsite, and genetic risk, providing additional insight into the potential role of LC-PUFAs in cancer prevention.
Collapse
Affiliation(s)
- Elizabeth D Kantor
- a Public Health Sciences Division, Fred Hutchinson Cancer Research Center , Seattle , USA , Washington
| | | | | | | | | |
Collapse
|
35
|
Morin C, Rousseau É, Fortin S. Anti-proliferative effects of a new docosapentaenoic acid monoacylglyceride in colorectal carcinoma cells. Prostaglandins Leukot Essent Fatty Acids 2013; 89:203-13. [PMID: 23932824 DOI: 10.1016/j.plefa.2013.07.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 07/11/2013] [Accepted: 07/16/2013] [Indexed: 11/16/2022]
Abstract
N-3 polyunsaturated fatty acids (n-3 PUFAs) have been shown to inhibit the induction and progression of many tumor types. However, the anticancer effect of n-3 PUFA monoglyceride on colorectal cancer has yet to be assessed. The aim of the present study was to determine the anti-tumorigenic effects of docosahexaenoic acid monoglyceride (MAG-DHA), eicosapentaenoic acid monoglyceride (MAG-EPA) and docosapentaenoic acid (22:5n-3) monoglyceride (MAG-DPA) in colorectal carcinoma cells. Our results demonstrate that MAG-DHA, MAG-EPA and MAG-DPA all decreased cell proliferation and induced apoptosis in HCT116 cells, with MAG-DPA having the higher anti-proliferative and pro-apoptotic effects in vitro. In a HCT116 xenograft mouse model, oral administration of MAG-DPA significantly inhibited tumor growth. Furthermore, MAG-DPA treatments decreased NFκB activation leading to a reduction in Bcl-2, CyclinD1, c-myc, COX-2, MMP9 and VEGF expression levels in tumor tissue sections. Altogether, these data provide new evidence regarding the mode of action of MAG-DPA in colorectal cancer cells.
Collapse
Affiliation(s)
- Caroline Morin
- SCF Pharma, Ste-Luce, QC, Canada G0K 1P0; Department of Physiology and Biophysics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada J1H 5N4.
| | | | | |
Collapse
|
36
|
Sakai M, Kakutani S, Horikawa C, Tokuda H, Kawashima H, Shibata H, Okubo H, Sasaki S. Arachidonic acid and cancer risk: a systematic review of observational studies. BMC Cancer 2012; 12:606. [PMID: 23249186 PMCID: PMC3574856 DOI: 10.1186/1471-2407-12-606] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Accepted: 11/27/2012] [Indexed: 12/23/2022] Open
Abstract
Background An n-6 essential fatty acid, arachidonic acid (ARA) is converted into prostaglandin E2, which is involved in tumour extension. However, it is unclear whether dietary ARA intake leads to cancer in humans. We thus systematically evaluated available observational studies on the relationship between ARA exposure and the risk of colorectal, skin, breast, prostate, lung, and stomach cancers. Methods We searched the PubMed database for articles published up to May 17, 2010. 126 potentially relevant articles from the initial search and 49,670 bibliographies were scrutinised to identify eligible publications by using predefined inclusion criteria. A comprehensive literature search yielded 52 eligible articles, and their reporting quality and methodological quality was assessed. Information on the strength of the association between ARA exposure and cancer risk, the dose-response relationship, and methodological limitations was collected and evaluated with respect to consistency and study design. Results For colorectal, skin, breast, and prostate cancer, 17, 3, 18, and 16 studies, respectively, were identified. We could not obtain eligible reports for lung and stomach cancer. Studies used cohort (n = 4), nested case-control (n = 12), case-control (n = 26), and cross-sectional (n = 12) designs. The number of subjects (n = 15 - 88,795), ARA exposure assessment method (dietary intake or biomarker), cancer diagnosis and patient recruitment procedure (histological diagnosis, cancer registries, or self-reported information) varied among studies. The relationship between ARA exposure and colorectal cancer was inconsistent based on ARA exposure assessment methodology (dietary intake or biomarker). Conversely, there was no strong positive association or dose-response relationship for breast or prostate cancer. There were limited numbers of studies on skin cancer to draw any conclusions from the results. Conclusions The available epidemiologic evidence is weak because of the limited number of studies and their methodological limitations, but nonetheless, the results suggest that ARA exposure is not associated with increased breast and prostate cancer risk. Further evidence from well-designed observational studies is required to confirm or refute the association between ARA exposure and risk of cancer.
Collapse
Affiliation(s)
- Mai Sakai
- Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, Tokyo, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Dietary intake of n-3 fatty acids and colorectal cancer risk: a meta-analysis of data from 489 000 individuals. Br J Nutr 2012; 108:1550-6. [PMID: 22906228 DOI: 10.1017/s0007114512003546] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Preclinical studies have suggested an anti-colorectal cancer effect of n-3 fatty acids, yet epidemiological studies have reported mixed results. The goal of the present meta-analysis was to examine the association between the dietary intake of n-3 fatty acids and colorectal cancer risk by conducting a meta-analysis of prospective cohort studies. We searched the PubMed database up to February 2012 to identify eligible studies. Either a fixed- or random-effects model was used to obtain a pooled relative risk (RR) comparing the highest intake of n-3 fatty acids with the lowest. We conducted subgroup analyses according to sex, geographic region, length of follow-up, cancer site and type of n-3 fatty acids. We included seven prospective studies in the meta-analysis, comprising 489 465 participants and 4656 incident cases. The pooled RR of colorectal cancer in relation to n-3 fatty acids was 0·98 (95 % CI 0·88, 1·09). The results from subgroup analysis indicated a significant reduced risk of colorectal cancer in relation to n-3 fatty acids among men (RR 0·87, 95 % CI 0·75, 1·00; n 4). No significant association was observed in other subgroups. There was no evidence of publication bias as suggested by Begg's test (P = 0·76) and Egger's test (P = 0·66). The present meta-analysis showed insufficient evidence of a protective effect of n-3 fatty acids on colorectal cancer risk. However, a reduced risk observed in men warrants further investigation.
Collapse
|
38
|
Omega-3 fatty acids and cancers: a systematic update review of epidemiological studies. Br J Nutr 2012; 107 Suppl 2:S228-39. [PMID: 22591896 DOI: 10.1017/s0007114512001614] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Experimental models showed consistently a modulation of carcinogenesis by omega 3 polyunsaturated fatty acids (ω3 PUFA). Fish intake is often described as part of a beneficial dietary pattern. However, observational epidemiological studies on the relationship between ω3 PUFA reported conflicting results. The objective of this systematic review is to determine whether there exists any progress in the evaluation of the causal relationship between dietary ω3 PUFA and cancers since the previous FAO/OMS expert consultation and whether it is possible to propose preventive and/or adjuvant therapeutic recommendations. Prospective and case-control observational studies published since 2007 and meeting validity criteria were considered together with RCT. Experimental studies are mentioned to provide for biological plausibility. When evaluating the level of evidence, a portfolio approach was used, weighted by a hierarchy giving higher importance to prospective studies followed by RCT if any. There is a probable level of evidence that ALA per se is neither a risk factor nor a beneficial factor with regards to cancers. Observational studies on colorectal, prostate and breast cancers only provided limited evidence suggesting a possible role of LC-ω3PUFA in cancer prevention because insufficient homogeneity of the observations. Explanation for heterogeneity might be the inherent difficulties associated with epidemiology (confounding and dietary pattern context, measurement error, level of intake, genetic polymorphism). The role of LC-ω3PUFA as adjuvant, might be considered of possible use, in view of the latest RCT on lung cancers even if RCT on other cancers still need to be undertaken.
Collapse
|
39
|
Turk HF, Barhoumi R, Chapkin RS. Alteration of EGFR spatiotemporal dynamics suppresses signal transduction. PLoS One 2012; 7:e39682. [PMID: 22761867 PMCID: PMC3384615 DOI: 10.1371/journal.pone.0039682] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Accepted: 05/29/2012] [Indexed: 01/18/2023] Open
Abstract
The epidermal growth factor receptor (EGFR), which regulates cell growth and survival, is integral to colon tumorigenesis. Lipid rafts play a role in regulating EGFR signaling, and docosahexaenoic acid (DHA) is known to perturb membrane domain organization through changes in lipid rafts. Therefore, we investigated the mechanistic link between EGFR function and DHA. Membrane incorporation of DHA into immortalized colonocytes altered the lateral organization of EGFR. DHA additionally increased EGFR phosphorylation but paradoxically suppressed downstream signaling. Assessment of the EGFR-Ras-ERK1/2 signaling cascade identified Ras GTP binding as the locus of the DHA-induced disruption of signal transduction. DHA also antagonized EGFR signaling capacity by increasing receptor internalization and degradation. DHA suppressed cell proliferation in an EGFR-dependent manner, but cell proliferation could be partially rescued by expression of constitutively active Ras. Feeding chronically-inflamed, carcinogen-injected C57BL/6 mice a fish oil containing diet enriched in DHA recapitulated the effects on the EGFR signaling axis observed in cell culture and additionally suppressed tumor formation. We conclude that DHA-induced alteration in both the lateral and subcellular localization of EGFR culminates in the suppression of EGFR downstream signal transduction, which has implications for the molecular basis of colon cancer prevention by DHA.
Collapse
Affiliation(s)
- Harmony F. Turk
- Program in Integrative Nutrition and Complex Diseases, Texas A & M University, College Station, Texas, United States of America
| | - Rola Barhoumi
- Image Analysis Laboratory, Texas A & M University, College Station, Texas, United States of America
| | - Robert S. Chapkin
- Program in Integrative Nutrition and Complex Diseases, Texas A & M University, College Station, Texas, United States of America
- Center for Environmental and Rural Health, Texas A & M University, College Station, Texas, United States of America
- * E-mail:
| |
Collapse
|
40
|
de Roos B, Romagnolo DF. Proteomic approaches to predict bioavailability of fatty acids and their influence on cancer and chronic disease prevention. J Nutr 2012; 142:1370S-6S. [PMID: 22649259 DOI: 10.3945/jn.111.157206] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A low intake of fish and PUFA and high dietary trans- and SFA are considered to be among the main preventable causes of death. Unfortunately, epidemiological and preclinical studies have yet to identify biomarkers that accurately predict the influence of fatty acid intake on risk of chronic diseases, including cancer. Changes in protein profile and post-translational modifications in tissue and biofluids may offer important clues about the impact of fatty acids on the etiology of chronic diseases. However, conventional protein methodologies are not adequate for assessing the impact of fatty acids on protein expression patterns and modifications and the discovery of protein biomarkers that predict changes in disease risk and progression in response to fatty acid intake. Although fluctuations in protein structure and abundance and inter-individual variability often mask subtle effects caused by dietary intervention, modern proteomic platforms offer tremendous opportunities to increase the sensitivity of protein analysis in tissues and biofluids (plasma, urine) and elucidate the effects of fatty acids on regulation of protein networks. Unfortunately, the number of studies that adopted proteomic tools to investigate the impact of fatty acids on disease risk and progression is quite small. The future success of proteomics in the discovery of biomarkers of fatty acid nutrition requires improved accessibility and standardization of proteomic methodologies, validation of quantitative and qualitative protein changes (e.g., expression levels, post-translational modifications) induced by fatty acids, and application of bioinformatic tools that can inform about the cause-effect relationships between fatty acid intake and health response.
Collapse
Affiliation(s)
- Baukje de Roos
- University of Aberdeen, Rowett Institute of Nutrition and Health, Aberdeen, UK.
| | | |
Collapse
|
41
|
Whelan J, Gouffon J, Zhao Y. Effects of dietary stearidonic acid on biomarkers of lipid metabolism. J Nutr 2012; 142:630S-634S. [PMID: 22279143 DOI: 10.3945/jn.111.149138] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Stearidonic acid (SDA), a highly unsaturated (n-3) PUFA, is effectively metabolized to EPA with a bioequivalence of ~5:1 as determined by the omega-3 index, a biomarker for risk of cardiovascular disease. The AHA has recommended that individuals increase their consumption of highly unsaturated (n-3) PUFA, particularly EPA and DHA, but there are concerns about achieving the recommendations through fish consumption. SDA is considered a biological surrogate for EPA. SDA-enriched soybean oil whose SDA content is ~30% could be a novel mechanism to seamlessly incorporate highly unsaturated (n-3) PUFA into the food supply; however, the effects of SDA are poorly understood, particularly at the transcriptional level. This paper reviews the human literature of the effects of dietary SDA on circulating lipids as directly compared with EPA at bioequivalent doses. These results were then compared to the effects of SDA on expression patterns of hepatic lipolytic and lipogenic genes in swine fed diets containing SDA at levels similar with those doses used in human trials. Supplementing SDA at doses of 3.7-4.2 g/d, of which the bioequivalence to EPA is ≤1 g/d, had little impact on modifying circulating TG and total, LDL, and HDL cholesterol, recapitulating the results with EPA at doses of 1.0-1.5 g/d. These results were generally supported by the gene expression patterns in swine. Although many lipolytic and lipogenic genes remained unchanged, several lipogenic genes were downregulated and a number of other biomarkers considered atheroprotective, such as C-reactive protein and paraoxonase, were favorably modified.
Collapse
Affiliation(s)
- Jay Whelan
- Department of Nutrition, University of Tennessee, Knoxville, TN, USA.
| | | | | |
Collapse
|
42
|
Fowke JH, Motley SS, Barocas DA, Cookson MS, Concepcion R, Byerly S, Smith JA. The associations between statin use and prostate cancer screening, prostate size, high-grade prostatic intraepithelial neoplasia (PIN), and prostate cancer. Cancer Causes Control 2011; 22:417-26. [PMID: 21170754 PMCID: PMC3042514 DOI: 10.1007/s10552-010-9713-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Accepted: 12/04/2010] [Indexed: 10/18/2022]
Abstract
OBJECTIVE Prior studies report statins may reduce the risk of advanced prostate cancer. This study investigates the association between statin use and the likelihood of having a PSA or DRE test, blood PSA levels, prostate volume, and the severity of lower urinary tract symptoms. We also describe the association between statin use and prostate cancer and high-grade prostatic intraepithelial neoplasia (PIN) before and after controlling for prostate cancer screening indices associated with statin use. METHODS The Nashville Men's Health Study used a multicenter, rapid recruitment protocol to collect clinical, biologic, behavioral, and body measurement data from 2,148 men 40 years or older scheduled for diagnostic prostate biopsy. Medication use and other data were ascertained by research survey, clinical interview, and chart review. RESULTS Approximately 37% of participants were taking a statin. Statin use was significantly associated with a 12% lower PSA levels and 8% smaller prostate volume after controlling for age, race, BMI, WHR, aspirin use, and other comorbidity. Simvastatin was more strongly associated with prostate volume, while atorvastatin was associated with PSA. Statin use was marginally associated with increasing PSA test frequency among men with undiagnosed cancer. Statin use was not associated with the frequency or results of digital rectal exams, lower urinary tract symptom severity, high-grade (Gleason > 6) prostate cancer (OR = 0.95 (0.73, 1.24)), low-grade (Gleason = 6) prostate cancer (OR = 1.11 (0.86, 1.42)) or PIN (OR = 0.82, (0.57, 1.17)). Additional control for the number of prior PSA tests, PSA levels, and prostate volume did not alter these results. CONCLUSION These results suggest selective referral for biopsy associated with statin use is an essential element to address in further understanding the potential for statins to prevent prostate cancer.
Collapse
Affiliation(s)
- Jay H Fowke
- Vanderbilt Epidemiology Center, Vanderbilt University Medical Center, 2525 West End Ave. 6th Floor, Suite 600, Nashville, TN 37203-1738, USA.
| | | | | | | | | | | | | |
Collapse
|
43
|
Wu S, Liang J, Zhang L, Zhu X, Liu X, Miao D. Fish consumption and the risk of gastric cancer: systematic review and meta-analysis. BMC Cancer 2011; 11:26. [PMID: 21247502 PMCID: PMC3037921 DOI: 10.1186/1471-2407-11-26] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2010] [Accepted: 01/20/2011] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Gastric cancer is the fourth most frequently occurring malignancy after lung, breast, and colorectal cancer, and the second most common cause of death from cancer worldwide. Epidemiologic studies have examined the possible association between fish consumption and gastric cancer, but the results were inconclusive. We conducted a systematic review and meta-analysis to examine the association between fish intake and the risk of gastric cancer. METHODS PubMed was searched for studies published in English-language journals from 1991 through 2009. We identified 17 epidemiologic studies (15 case-control and 2 cohort studies) that included relative risks (RRs) or odds ratios (ORs) estimates with 95% confidence intervals (CIs) of the relationship between gastric cancer and fish consumption. Data were extracted using standardized data forms. Summary RRs or ORs for the highest versus non/lowest fish consumption levels were calculated using random-effects model. Heterogeneity among studies was examined using Q and I2 statistics. RESULTS In this study, 5,323 cases of gastric cancer and over 130,000 non-cases were included. The combined results from all studies indicated that the association between high fish consumption and reduced gastric cancer risk was not statistically insignificant (RR = 0.87, 95% CI = 0.71-1.07). CONCLUSIONS Current evidence indicated that the association between fish consumption and risk of gastric cancer remains unclear.
Collapse
Affiliation(s)
- Shengjun Wu
- Department of Psychology, School of Aerospace Medicine, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Jie Liang
- State Key Laboratory of Cancer Biology & Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Lei Zhang
- Department of Epidemiolody, School of Military Preventive Medicine, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Xia Zhu
- Department of Psychology, School of Aerospace Medicine, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Xufeng Liu
- Department of Psychology, School of Aerospace Medicine, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| | - Danmin Miao
- Department of Psychology, School of Aerospace Medicine, Fourth Military Medical University, Xi'an, Shaanxi, PR China
| |
Collapse
|
44
|
Kato I, Majumdar AP, Land SJ, Barnholtz-Sloan JS, Severson RK. Dietary fatty acids, luminal modifiers, and risk of colorectal cancer. Int J Cancer 2010; 127:942-51. [PMID: 19998336 DOI: 10.1002/ijc.25103] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Inconsistent observations in epidemiologic studies on the association between total fat intake and colorectal cancer may be ascribed to opposing effects of individual fatty acids and the presence of other dietary constituents that modify luminal or systemic lipid exposure. We analyzed the data from a population-based case-control study that included 1,163 cases and 1,501 controls to examine the effects of individual fatty acid groups on colorectal cancer risk as well as their interactions with calcium and fiber intake. Odds ratios (OR) and 95% confidence intervals (CI) were estimated by unconditional logistic regression model according to quartile levels of energy-adjusted fatty acid intake. In the bivariable analyses, the risk of colorectal cancer increased with trans fatty acid (TFA) intake (OR for top vs. bottom quartile =1.46, 95% CI 1.17-1.59, p-value for a trend <0.001), but the associations was substantially attenuated in multivariable analyses (p value for a trend = 0.176). However, a significant linear trend in the multivariable OR (p = 0.029) for TFA was present for subjects with lower calcium intake. Furthermore, multivariable ORs progressively decreased with increasing both omega-3 and omega-6 poly- unsaturated fatty acid intake (p-values for linear trend: 0.033 and 0.011, respectively) for subjects with lower dietary fiber intake. These interactions were also significant or marginally significant (p = 0.085 for TFA, 0.029 for omega-3 and 0.068 for omega-6). Our results suggest that populations with lower intake of luminal modifiers, i.e., calcium and fiber, may have differential risks of colorectal cancer associated with dietary fatty acid intake.
Collapse
Affiliation(s)
- Ikuko Kato
- Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan 48201, USA
| | | | | | | | | |
Collapse
|
45
|
Chan AT, Giovannucci EL. Primary prevention of colorectal cancer. Gastroenterology 2010; 138:2029-2043.e10. [PMID: 20420944 PMCID: PMC2947820 DOI: 10.1053/j.gastro.2010.01.057] [Citation(s) in RCA: 410] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2009] [Revised: 01/10/2010] [Accepted: 01/14/2010] [Indexed: 02/07/2023]
Abstract
Colorectal cancer has been strongly associated with a Western lifestyle. In the past several decades, much has been learned about the dietary, lifestyle, and medication risk factors for this malignancy. Although there is controversy about the role of specific nutritional factors, consideration of dietary pattern as a whole appears useful for formulating recommendations. For example, several studies have shown that high intake of red and processed meats, highly refined grains and starches, and sugars is related to increased risk of colorectal cancer. Replacing these factors with poultry, fish, and plant sources as the primary source of protein; unsaturated fats as the primary source of fat; and unrefined grains, legumes and fruits as the primary source of carbohydrates is likely to lower risk of colorectal cancer. Although a role for supplements, including vitamin D, folate, and vitamin B6, remains uncertain, calcium supplementation is likely to be at least modestly beneficial. With respect to lifestyle, compelling evidence indicates that avoidance of smoking and heavy alcohol use, prevention of weight gain, and maintenance of a reasonable level of physical activity are associated with markedly lower risks of colorectal cancer. Medications such as aspirin and nonsteroidal anti-inflammatory drugs and postmenopausal hormones for women are associated with substantial reductions in colorectal cancer risk, though their utility is affected by associated risks. Taken together, modifications in diet and lifestyle should substantially reduce the risk of colorectal cancer and could complement screening in reducing colorectal cancer incidence.
Collapse
|
46
|
Kim S, Sandler DP, Galanko J, Martin C, Sandler RS. Intake of polyunsaturated fatty acids and distal large bowel cancer risk in whites and African Americans. Am J Epidemiol 2010; 171:969-79. [PMID: 20392864 DOI: 10.1093/aje/kwq032] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Long-chain omega-3 polyunsaturated fatty acids (PUFAs) may have antineoplastic properties in the colon. The authors examined the association between intakes of different PUFAs and distal large bowel cancer in a population-based case-control study of 1,503 whites (716 cases; 787 controls) and 369 African Americans (213 cases; 156 controls) in North Carolina (2001-2006). Unconditional logistic regression was used to estimate odds ratios and 95% confidence intervals for distal large bowel cancer risk in relation to quartiles of PUFA intake. Increased consumption of long-chain omega-3 PUFAs was associated with reduced risk of distal large bowel cancer in whites (multivariable odds ratios = 0.88 (95% confidence interval (CI): 0.63, 1.22), 0.69 (95% CI: 0.49, 0.98), and 0.49 (95% CI: 0.34, 0.71) for second, third, and highest vs. lowest quartile) (P(trend) < 0.01). Intake of individual eicosapentaenoic acids and docosahexaenoic acids was inversely related to distal large bowel cancer risk, whereas the ratio of omega-6 to long-chain omega-3 PUFAs was associated with increased risk of distal large bowel cancer in whites, but not among African Americans (P(interaction) < 0.05). Study results support the hypothesis that long-chain omega-3 PUFAs have beneficial effects in colorectal carcinogenesis. Whether or not the possible benefit of long-chain omega-3 PUFAs varies by race warrants further evaluation.
Collapse
Affiliation(s)
- Sangmi Kim
- Epidemiology Branch, National Institute of Environmental Health Sciences, P.O. Box 12233, MD A3-05, 111 T. W. Alexander Drive, Research Triangle Park, NC 27709, USA.
| | | | | | | | | |
Collapse
|
47
|
Davidson LA, Wang N, Shah MS, Lupton JR, Ivanov I, Chapkin RS. n-3 Polyunsaturated fatty acids modulate carcinogen-directed non-coding microRNA signatures in rat colon. Carcinogenesis 2009; 30:2077-84. [PMID: 19825969 PMCID: PMC2792315 DOI: 10.1093/carcin/bgp245] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2009] [Revised: 09/04/2009] [Accepted: 09/30/2009] [Indexed: 12/13/2022] Open
Abstract
We have hypothesized that dietary modulation of intestinal non-coding RNA [microRNA (miRNA)] expression may contribute to the chemoprotective effects of nutritional bioactives (fish oil and pectin). To fully understand the effects of these agents on the expression of miRNAs, Sprague-Dawley rats were fed diets containing corn oil or fish oil with pectin or cellulose and injected with azoxymethane (AOM, a colon-specific carcinogen) or saline (control). Real-time polymerase chain reaction using miRNA-specific primers and Taq Man probes was carried out to quantify effects on miRNA expression in colonic mucosa. From 368 mature miRNAs assayed, at an early stage of cancer progression (10 week post AOM injection), let-7d, miR-15b, miR-107, miR-191 and miR-324-5p were significantly (P < 0.05) affected by diet x carcinogen interactions. Overall, fish oil fed animals exhibited the smallest number of differentially expressed miRNAs (AOM versus saline treatment). With respect to the tumor stage (34 week post AOM injection), 46 miRNAs were dysregulated in adenocarcinomas compared with normal mucosa from saline-injected animals. Of the 27 miRNAs expressed at higher (P < 0.05) levels in tumors, miR-34a, 132, 223 and 224 were overexpressed at >10-fold. In contrast, the expression levels of miR-192, 194, 215 and 375 were dramatically reduced (< or = 0.32-fold) in adenocarcinomas. These results demonstrate for the first time the utility of the rat AOM model and the novel role of fish oil in protecting the colon from carcinogen-induced miRNA dysregulation.
Collapse
Affiliation(s)
- Laurie A. Davidson
- Program in Integrative Nutrition & Complex Diseases
- Center for Environmental and Rural Health
| | | | - Manasvi S. Shah
- Program in Integrative Nutrition & Complex Diseases
- Intercollegiate Faculty of Genetics
| | - Joanne R. Lupton
- Program in Integrative Nutrition & Complex Diseases
- Center for Environmental and Rural Health
| | - Ivan Ivanov
- Center for Environmental and Rural Health
- Department of Veterinary Physiology & Pharmacology
| | - Robert S. Chapkin
- Program in Integrative Nutrition & Complex Diseases
- Center for Environmental and Rural Health
- Intercollegiate Faculty of Genetics
- Vegetable and Fruit Improvement Center, Texas A&M University, College Station, TX 77843, USA
| |
Collapse
|
48
|
Murff HJ, Shu XO, Li H, Dai Q, Kallianpur A, Yang G, Cai H, Wen W, Gao YT, Zheng W. A prospective study of dietary polyunsaturated fatty acids and colorectal cancer risk in Chinese women. Cancer Epidemiol Biomarkers Prev 2009; 18:2283-91. [PMID: 19661088 DOI: 10.1158/1055-9965.epi-08-1196] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
In animal models of colon cancer, n-3 polyunsaturated fatty acids (PUFA) have antineoplastic properties, whereas n-6 PUFAs may promote carcinogenesis. Prior epidemiologic studies have been inconsistent regarding the association of PUFAs and colorectal cancer. We prospectively evaluated the association between PUFA intake and colorectal cancer in a cohort of 73,242 Chinese women who were interviewed in person at the baseline survey for the Shanghai Women's Health Study. Dietary fatty acid consumption was derived using data collected from two food frequency questionnaires administered at baseline and 2 to 3 years later. The dietary total n-6 to n-3 PUFA ratio was strongly associated with colorectal cancer risk. Compared with women in the lowest quintile group, elevated relative risks (RR) were observed for the second [RR, 1.52; 95% confidence intervals (CI), 1.00-2.32], third (RR, 2.20; 95% CI, 1.41-3.45), fourth (RR, 1.65; 95% CI, 0.99-2.75), and fifth (RR, 1.95; 95% CI, 1.07-3.54) quintile groups. Arachidonic acid was associated with colorectal cancer risk with elevated RRs of 1.20(Q2-Q1) (95% CI, 0.87-1.64), 1.44(Q3-Q1) (95% CI, 1.05-1.98), 1.61(Q4-Q1) (95% CI, 1.17-2.23), and 1.39(Q5-Q1) (95% CI, 0.97-1.99; P(trend) = 0.03) with increasing dietary quintile. In a subset of 150 cancer cases and 150 controls, we found a statistically significant trend between an increasing n-6 to n-3 PUFA ratio and increasing production of prostaglandin E(2) (PGE(2)) as measured by urinary PGE(2) metabolites (P = 0.03). These results suggest that dietary PUFA and the ratio of n-6 to n-3 PUFA intake may be positively associated with colorectal cancer risk, and this association may be mediated in part through PGE(2) production.
Collapse
Affiliation(s)
- Harvey J Murff
- Department of Medicine, Vanderbilt Epidemiology Center, Vanderbilt University School of Medicine, Nashville, TN 37203-1738, USA.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Giros A, Grzybowski M, Sohn VR, Pons E, Fernandez-Morales J, Xicola RM, Sethi P, Grzybowski J, Goel A, Boland CR, Gassull MA, Llor X. Regulation of colorectal cancer cell apoptosis by the n-3 polyunsaturated fatty acids Docosahexaenoic and Eicosapentaenoic. Cancer Prev Res (Phila) 2009; 2:732-42. [PMID: 19638488 DOI: 10.1158/1940-6207.capr-08-0197] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Several studies have suggested that the n-3 fatty acids Docosahexaenoic (DHA) and Eicosapentaenoic (EPA) have an important protective effect on colorectal cancer, and this could be at least partly due to their proapoptotic activity. It is unclear, however, how this phenomenon is triggered and what mechanisms are implicated. Here, we show that both DHA and EPA have an important proapoptotic effect on colorectal cancer cells with different molecular phenotypes but not in noncancerous cells. Apoptosis is caspase dependent, and both intrinsic and extrinsic pathways are implicated. The dimerization of Bax and Bak, the depolarization of the mitochondrial membrane, and the subsequent release of cytochrome c and Smac/Diablo to the cytosol evidence the activation of the intrinsic pathway. The implication of the extrinsic pathway is shown by the activation of caspase-8, along with the down-regulation of FLIP. The timing of caspase-8 activation, and the oligomerization of Bid with Bax, suggest a cross-talk with the intrinsic pathway. None of the death receptors that commonly initiate the extrinsic pathway: FAS, TNF-R1, and TRAIL-R2 are found to be responsible for triggering the apoptosis cascade induced by DHA and EPA. Neither PPARgamma nor cyclooxygenase-2, two likely candidates to regulate this process, play a significant role. Our findings suggest that the down-regulation of two key regulatory elements of the extrinsic and intrinsic pathways, FLIP and XIAP, respectively, is determinant in the induction of apoptosis by DHA and EPA. These fatty acids could potentially be useful adjuvant anticancer agents in combination with other chemotherapeutic elements.
Collapse
Affiliation(s)
- Anna Giros
- Department of Medicine, University of Illinois at Chicago, 840 South Wood Street (M/C 716), Chicago, IL 60612, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Rinaldi S, Rohrmann S, Jenab M, Biessy C, Sieri S, Palli D, Tumino R, Mattiello A, Vineis P, Nieters A, Linseisen J, Pischon T, Boeing H, Hallmans G, Palmqvist R, Manjer J, Wirfält E, Crowe FL, Khaw KTT, Bingham S, Tjønneland A, Olsen A, Overvad K, Lund E, Skeie G, Clavel-Chapelon F, Boutron-Ruault MC, de Lauzon-Guillain B, Ardanaz E, Jakszyn P, Ramon Quiros J, Chirlaque MD, Sanchez MJ, Dorronsoro M, Trichopoulou A, Lagiou P, Trichopoulos D, Bueno-de-Mesquita HB, van Duijnhoven FJB, Peeters PHM, Slimani N, Ferrari P, Byrnes GB, Riboli E, Kaaks R. Glycosylated hemoglobin and risk of colorectal cancer in men and women, the European prospective investigation into cancer and nutrition. Cancer Epidemiol Biomarkers Prev 2009; 17:3108-15. [PMID: 18990751 DOI: 10.1158/1055-9965.epi-08-0495] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Although large-scale prospective cohort studies have related hyperglycemia to increased risk of cancer overall, studies specifically on colorectal cancer have been generally small. We investigated the association between prediagnostic levels of glycosylated hemoglobin (HbA1c), a marker for average glucose level in blood, and colorectal cancer risk in a case-control study nested within the European Prospective Investigation into Cancer and Nutrition cohort. One thousand and twenty-six incident colorectal cancer cases (561 men and 465 women) and 1,026 matched controls were eligible for the study. Multivariate conditional logistic regression was used to estimate odds ratios (ORS) adjusted for possible confounders. Increasing HbA1c percentages were statistically significantly associated with a mild increase in colorectal cancer risk in the whole population [OR, 1.10; 95% confidence interval (CI), 1.01,1.19 for a 10% increase in HbA1c]. In women, increasing HbA1c percentages were associated with a statistically significant increase in colorectal cancer risk (OR, 1.16; 95% CI, 1.01, 1.32 for a 10% increase in HbA1c) and with a borderline statistically significant increase in rectum cancer (OR, 1.22; 95% CI, 0.99,1.50 for a 10% increase in HbA1c). No significant association with cancer risk was observed in men. The results of the current study suggest a mild implication of hyperglycemia in colorectal cancer, which seems more important in women than in men, and more for cancer of the rectum than of the colon.
Collapse
Affiliation(s)
- Sabina Rinaldi
- IARC, 150, cours Albert Thomas, Lyon, 69372 Lyon Cedex 08, France.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|