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Parikh M, Pierce GN. Considerations for choosing an optimal animal model of cardiovascular disease. Can J Physiol Pharmacol 2024; 102:75-85. [PMID: 37748198 DOI: 10.1139/cjpp-2023-0206] [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: 09/27/2023]
Abstract
The decision to use the optimal animal model to mimic the various types of cardiovascular disease is a critical one for a basic scientist. Clinical cardiovascular disease can be complex and presents itself as atherosclerosis, hypertension, ischemia/reperfusion injury, myocardial infarcts, and cardiomyopathies, amongst others. This may be further complicated by the simultaneous presence of two or more cardiovascular lesions (for example, atherosclerosis and hypertension) and co-morbidities (i.e., diabetes, infectious disease, obesity, etc). This variety and merging of disease states creates an unusually difficult situation for the researcher who needs to identify the optimal animal model that is available to best represent all of the characteristics of the clinical cardiovascular disease. The present manuscript reviews the characteristics of the various animal models of cardiovascular disease available today, their advantages and disadvantages, with the goal to allow the reader access to the most recent data available for optimal choices prior to the initiation of the study. The animal species that can be chosen, the methods of generating these models of cardiovascular disease, as well as the specific cardiovascular lesions involved in each of these models are reviewed. A particular focus on the JCR:LA-cp rat as a model of cardiovascular disease is discussed.
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Affiliation(s)
- Mihir Parikh
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- Institute of Cardiovascular Sciences, Albrechtsen Research Centre, St. Boniface Hospital, Winnipeg, MB, Canada
| | - Grant N Pierce
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB, Canada
- Institute of Cardiovascular Sciences, Albrechtsen Research Centre, St. Boniface Hospital, Winnipeg, MB, Canada
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2
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Hirata Y, Kojima R, Ashida R, Nada Y, Kimura S, Sato E, Noguchi T, Matsuzawa A. Industrially produced trans-fatty acids are potent promoters of DNA damage-induced apoptosis. J Toxicol Sci 2024; 49:27-36. [PMID: 38191191 DOI: 10.2131/jts.49.27] [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: 01/10/2024]
Abstract
trans-Fatty acids (TFAs) are unsaturated fatty acids harboring at least one carbon-carbon double bond in trans configuration, which are categorized into two groups according to their origin: industrial and ruminant TFAs, hereafter called iTFAs and rTFAs, respectively. Numerous epidemiological studies have shown a specific link of iTFAs to various diseases, such as cardiovascular and neurodegenerative diseases. However, there is little evidence for underlying mechanisms that can explain the specific toxicity of iTFAs, and how to mitigate their toxicity. Herein, we show that iTFAs, including elaidic acid (EA) and linoelaidic acid, but not rTFAs, facilitate apoptosis induced by doxorubicin (Dox), triggering DNA double-strand breaks. We previously established that EA promotes Dox-induced apoptosis by accelerating c-Jun N-terminal kinase (JNK) activation through mitochondrial reactive oxygen species (ROS) overproduction. Consistently, iTFAs specifically enhanced Dox-induced JNK activation. Furthermore, Dox-induced pro-apoptotic signaling by iTFAs was blocked in the presence of oleic acid (OA), the geometrical cis isomer of EA. These results demonstrate that iTFAs specifically exert their toxicity during DNA damage-induced apoptosis, which could be effectively suppressed by OA. Our study provides evidence for understanding the difference in toxic actions between TFA species, and for new strategies to prevent and combat TFA-related diseases.
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Affiliation(s)
- Yusuke Hirata
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Ryota Kojima
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Ryo Ashida
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Yuki Nada
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Shinnosuke Kimura
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Emiko Sato
- Division of Clinical Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Takuya Noguchi
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
| | - Atsushi Matsuzawa
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University
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3
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Wang M, Qi Y, Zhou Y, Zhang Z, Guo C, Shu C, Pan F, Guo Z, Di HJ, Hu Z. Impeding DNA Polymerase β Activity by Oleic Acid to Inhibit Base Excision Repair and Induce Mitochondrial Dysfunction in Hepatic Cells. Cell Biochem Biophys 2023; 81:765-776. [PMID: 37695502 DOI: 10.1007/s12013-023-01172-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 08/24/2023] [Indexed: 09/12/2023]
Abstract
Free fatty acids (FFAs) hepatic accumulation and the resulting oxidative stress contribute to several chronic liver diseases including nonalcoholic steatohepatitis. However, the underlying pathological mechanisms remain unclear. In this study, we propose a novel mechanism whereby the toxicity of FFAs detrimentally affects DNA repair activity. Specifically, we have discovered that oleic acid (OA), a prominent dietary free fatty acid, inhibits the activity of DNA polymerase β (Pol β), a crucial enzyme involved in base excision repair (BER), by actively competing with 2'-deoxycytidine-5'-triphosphate. Consequently, OA hinders the efficiency of BER, leading to the accumulation of DNA damage in hepatocytes overloaded with FFAs. Additionally, the excessive presence of both OA and palmitic acid (PA) lead to mitochondrial dysfunction in hepatocytes. These findings suggest that the accumulation of FFAs hampers Pol β activity and contributes to mitochondrial dysfunction, shedding light on potential pathogenic mechanisms underlying FFAs-related diseases.
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Affiliation(s)
- Meina Wang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
- Institute of Biomedical Informatics, Henan Provincial Engineering Center for Tumor Molecular Medicine, School of Basic Medical Sciences, Henan University, Kaifeng, China
| | - Yannan Qi
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Yu Zhou
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Ziyu Zhang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Chenxi Guo
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210017, China
| | - Chuanjun Shu
- Department of Bioinformatics, School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, 211166, China
| | - Feiyan Pan
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Zhigang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China
| | - Hong-Jie Di
- Department of Endocrinology, the Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210017, China.
| | - Zhigang Hu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, 1 WenYuan Road, Nanjing, 210023, China.
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Hirata Y, Kashiwabara N, Nada Y, Inoue A, Sato E, Noguchi T, Matsuzawa A. A comprehensive toxicological analysis of trans-fatty acids (TFAs) reveals a pro-apoptotic action specific to industrial TFAs counteracted by polyunsaturated FAs. Sci Rep 2023; 13:5883. [PMID: 37041254 PMCID: PMC10090069 DOI: 10.1038/s41598-023-32083-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 03/22/2023] [Indexed: 04/13/2023] Open
Abstract
trans-Fatty acids (TFAs) are unsaturated fatty acids containing at least one carbon-carbon double bond in trans configuration, which are classified into two groups according to their food source: industrial TFAs (iTFAs) and ruminant TFAs (rTFAs). Previous epidemiological evidence has demonstrated a preferential association of iTFAs, rather than rTFAs, with various diseases including cardiovascular diseases. However, it is still unknown how iTFAs exert their specific toxicity and what effective treatments are available to mitigate their toxicity. Here, we performed a comprehensive toxicological assessment of TFAs based on the toxicity mechanism that we established previously. We found that iTFAs including elaidic acid (EA), but not other types of fatty acids including rTFAs, had a strong pro-apoptotic effect upon treatment of extracellular ATP, a damage-associated molecular pattern that induces apoptosis through the apoptosis signal-regulating kinase 1 (ASK1)-p38 MAP kinase pathway. We also found that polyunsaturated fatty acids (PUFAs), such as docosahexaenoic acid (DHA), potently suppressed EA-dependent increase in ASK1 activation and apoptosis. These results demonstrate that iTFAs specifically exert toxicity by targeting ASK1, and that PUFAs serve as their effective suppressor. Our study provides a molecular basis for risk assessment of foods, and for new prevention and treatment strategies for TFA-related diseases.
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Affiliation(s)
- Yusuke Hirata
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8578, Japan
| | - Naoki Kashiwabara
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8578, Japan
| | - Yuki Nada
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8578, Japan
| | - Aya Inoue
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8578, Japan
| | - Emiko Sato
- Division of Clinical Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Japan
| | - Takuya Noguchi
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8578, Japan
| | - Atsushi Matsuzawa
- Laboratory of Health Chemistry, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-Ku, Sendai, 980-8578, Japan.
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Oteng AB, Kersten S. Mechanisms of Action of trans Fatty Acids. Adv Nutr 2020; 11:697-708. [PMID: 31782488 PMCID: PMC7231579 DOI: 10.1093/advances/nmz125] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Revised: 09/03/2019] [Accepted: 10/31/2019] [Indexed: 12/11/2022] Open
Abstract
Human studies have established a positive association between the intake of industrial trans fatty acids and the development of cardiovascular diseases, leading several countries to enact laws that restrict the presence of industrial trans fatty acids in food products. However, trans fatty acids cannot be completely eliminated from the human diet since they are also naturally present in meat and dairy products of ruminant animals. Moreover, bans on industrial trans fatty acids have not yet been instituted in all countries. The epidemiological evidence against trans fatty acids by far overshadows mechanistic insights that may explain how trans fatty acids achieve their damaging effects. This review focuses on the mechanisms that underlie the deleterious effects of trans fatty acids by juxtaposing effects of trans fatty acids against those of cis-unsaturated fatty acids and saturated fatty acids (SFAs). This review also carefully explores the argument that ruminant trans fatty acids have differential effects from industrial trans fatty acids. Overall, in vivo and in vitro studies demonstrate that industrial trans fatty acids promote inflammation and endoplasmic reticulum (ER) stress, although to a lesser degree than SFAs, whereas cis-unsaturated fatty acids are protective against ER stress and inflammation. Additionally, industrial trans fatty acids promote fat storage in the liver at the expense of adipose tissue compared with cis-unsaturated fatty acids and SFAs. In cultured hepatocytes and adipocytes, industrial trans fatty acids, but not cis-unsaturated fatty acids or SFAs, stimulate the cholesterol synthesis pathway by activating sterol regulatory element binding protein (SREBP) 2-mediated gene regulation. Interestingly, although industrial and ruminant trans fatty acids show similar effects on human plasma lipoproteins, in preclinical models, only industrial trans fatty acids promote inflammation, ER stress, and cholesterol synthesis. Overall, clearer insight into the molecular mechanisms of action of trans fatty acids may create new therapeutic windows for the treatment of diseases characterized by disrupted lipid metabolism.
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Affiliation(s)
- Antwi-Boasiako Oteng
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
| | - Sander Kersten
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition and Health, Wageningen University, Wageningen, The Netherlands
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trans-Fatty acids facilitate DNA damage-induced apoptosis through the mitochondrial JNK-Sab-ROS positive feedback loop. Sci Rep 2020; 10:2743. [PMID: 32066809 PMCID: PMC7026443 DOI: 10.1038/s41598-020-59636-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 01/29/2020] [Indexed: 12/15/2022] Open
Abstract
trans-Fatty acids (TFAs) are unsaturated fatty acids that contain one or more carbon-carbon double bonds in trans configuration. Epidemiological evidence has linked TFA consumption with various disorders, including cardiovascular diseases. However, the underlying pathological mechanisms are largely unknown. Here, we show a novel toxic mechanism of TFAs triggered by DNA damage. We found that elaidic acid (EA) and linoelaidic acid, major TFAs produced during industrial food manufacturing (so-called as industrial TFAs), but not their corresponding cis isomers, facilitated apoptosis induced by doxorubicin. Consistently, EA enhanced UV-induced embryonic lethality in C. elegans worms. The pro-apoptotic action of EA was blocked by knocking down Sab, a c-Jun N-terminal kinase (JNK)-interacting protein localizing at mitochondrial outer membrane, which mediates mutual amplification of mitochondrial reactive oxygen species (ROS) generation and JNK activation. EA enhanced doxorubicin-induced mitochondrial ROS generation and JNK activation, both of which were suppressed by Sab knockdown and pharmacological inhibition of either mitochondrial ROS generation, JNK, or Src-homology 2 domain-containing protein tyrosine phosphatase 1 (SHP1) as a Sab-associated protein. These results demonstrate that in response to DNA damage, TFAs drive the mitochondrial JNK-Sab-ROS positive feedback loop and ultimately apoptosis, which may provide insight into the common pathogenetic mechanisms of diverse TFA-related disorders.
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Stamenkovic A, Ganguly R, Aliani M, Ravandi A, Pierce GN. Overcoming the Bitter Taste of Oils Enriched in Fatty Acids to Obtain Their Effects on the Heart in Health and Disease. Nutrients 2019; 11:E1179. [PMID: 31137794 PMCID: PMC6566568 DOI: 10.3390/nu11051179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 05/13/2019] [Accepted: 05/22/2019] [Indexed: 01/18/2023] Open
Abstract
Fatty acids come in a variety of structures and, because of this, create a variety of functions for these lipids. Some fatty acids have a role to play in energy metabolism, some help in lipid storage, cell structure, the physical state of the lipid, and even in food stability. Fatty acid metabolism plays a particularly important role in meeting the energy demands of the heart. It is the primary source of myocardial energy in control conditions. Its role changes dramatically in disease states in the heart, but the pathologic role these fatty acids play depends upon the type of cardiovascular disease and the type of fatty acid. However, no matter how good a food is for one's health, its taste will ultimately become a deciding factor in its influence on human health. No food will provide health benefits if it is not ingested. This review discusses the taste characteristics of culinary oils that contain fatty acids and how these fatty acids affect the performance of the heart during healthy and diseased conditions. The contrasting contributions that different fatty acid molecules have in either promoting cardiac pathologies or protecting the heart from cardiovascular disease is also highlighted in this article.
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Affiliation(s)
- Aleksandra Stamenkovic
- Institute of Cardiovascular Sciences, St Boniface Hospital, Winnipeg, MB R2H2A6, Canada.
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E0W3, Canada.
| | - Riya Ganguly
- Institute of Cardiovascular Sciences, St Boniface Hospital, Winnipeg, MB R2H2A6, Canada.
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E0W3, Canada.
| | - Michel Aliani
- Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Albrechtsen Research Centre, St Boniface Hospital, University of Manitoba, Winnipeg, MB R2H2A6, Canada.
- Department of Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, University of Manitoba, Winnipeg, MB R2H2A6, Canada.
| | - Amir Ravandi
- Institute of Cardiovascular Sciences, St Boniface Hospital, Winnipeg, MB R2H2A6, Canada.
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E0W3, Canada.
- Internal Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E0W3, Canada.
| | - Grant N Pierce
- Institute of Cardiovascular Sciences, St Boniface Hospital, Winnipeg, MB R2H2A6, Canada.
- Department of Physiology and Pathophysiology, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E0W3, Canada.
- Canadian Centre for Agri-Food Research in Health and Medicine (CCARM), Albrechtsen Research Centre, St Boniface Hospital, University of Manitoba, Winnipeg, MB R2H2A6, Canada.
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Islam MA, Amin MN, Siddiqui SA, Hossain MP, Sultana F, Kabir MR. Trans fatty acids and lipid profile: A serious risk factor to cardiovascular disease, cancer and diabetes. Diabetes Metab Syndr 2019; 13:1643-1647. [PMID: 31336535 DOI: 10.1016/j.dsx.2019.03.033] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 03/14/2019] [Indexed: 10/27/2022]
Abstract
Trans Fatty acids (TFAs) have long been used in food manufacturing due in part to their melting point at room temperature between saturated and unsaturated fats. However, increasing epidemiologic and biochemical evidence suggests that excessive trans fats in the diet are a significant risk factor for cardiovascular events as well as a risk factor for cancer and diabetes. A 2% absolute increase in energy intake from trans-fat has been associated with a 23% increase in cardiovascular risk. They increase the levels of low-density lipoprotein which is bad for health. Moreover, several epidemiological studies have been demonstrated that a high intake of TFAs increases the incidence of cancer and diabetes. On the other hand, total elimination of TFAs is not possible in a balanced diet due to their natural presence in dairy and meat products. Many products with almost 0.5 g trans-fat, if consumed over the course of a day, may approximate or exceed the 2 g maximum as recommended by the American Heart Association. The objective of the review to demonstrate the causal association between trans fatty acid intake and increase the risk of coronary heart disease through their influence on lipoprotein, association with atherosclerosis, stroke, diabetes and cancer.
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Affiliation(s)
- Md Ashraful Islam
- Department of Food Technology and Nutrition Science, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Mohammad Nurul Amin
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230, Bangladesh.
| | - Shafayet Ahmed Siddiqui
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230, Bangladesh
| | - Md Parvez Hossain
- Department of Food Technology and Nutrition Science, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Farhana Sultana
- Department of Pharmacy, Atish Dipankar University of Science and Technology, Dhaka, 1230, Bangladesh
| | - Md Ruhul Kabir
- Department of Food Technology and Nutrition Science, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh.
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Discrimination between conventional and omega-3 fatty acids enriched eggs by FT-Raman spectroscopy and chemometric tools. Food Chem 2019; 273:144-150. [DOI: 10.1016/j.foodchem.2017.12.084] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/14/2017] [Accepted: 12/27/2017] [Indexed: 12/16/2022]
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Hadj Ahmed S, Kaoubaa N, Kharroubi W, Zarrouk A, Najjar MF, Batbout F, Gamra H, Lizard G, Hammami M. Association of plasma fatty acid alteration with the severity of coronary artery disease lesions in Tunisian patients. Lipids Health Dis 2017; 16:154. [PMID: 28806974 PMCID: PMC5557073 DOI: 10.1186/s12944-017-0538-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 08/02/2017] [Indexed: 11/12/2022] Open
Abstract
Background Some factors related to diet are known to be involved in the progression of atherosclerosis in humans. Methods The relationship between plasma fatty acid (FA) levels and the severity of coronary artery disease (CAD), evaluated by Gensini score (GS), was investigated in CAD Tunisian patients compared to controls. Lipid profiles were analyzed, GS was calculated in CAD and non-CAD patients and compared to controls. Results CAD patients showed an alteration of conventional lipid parameters. In fact, a significant increase of plasmatic triglycerides (TG) level, atherogenic lipid ratios (TC/HDL-C,TG/HDL-C, LDL-C/HDL-C); and ApoB/ApoA1 was observed in the CAD group comparatively to controls (p < 0.001). Gensini score was showed to be a good indicator to evaluate cholesterol metabolism disorders associated with HDL-C since a negative association was found between HDL-C levels and GS for the two groups of patients. In addition, in the relation with FA and classes of FA, a negative association was found as expected, between Gensini score and total MUFA, PUFA n-3, total PUFA, GLA, DGLA and DHA. Furthermore, a positive association with stearic and erucic acid was found. Suggests that, GS is also a good indicator to evaluate FA metabolic disorders. Higher elongation index and modifications of desaturation index (D5D, D6D and D9D) were observed in patients compared to controls, supporting FA metabolism modifications. Conclusions In conclusion, although that Tunisian population appears to follow the Mediterranean diet, variations of plasmatic FA levels and desaturase activities in CAD patients highlights an alteration of FA metabolism and suggests an important implication of certain FA in the development of atherosclerosis.
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Affiliation(s)
- Samia Hadj Ahmed
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia.
| | - Nadia Kaoubaa
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
| | - Wafa Kharroubi
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
| | - Amira Zarrouk
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
| | | | - Fathi Batbout
- Cardiology Department CHU Fattouma Bourguiba Monastir- Tunisia, Monastir, Tunisia
| | - Habib Gamra
- Cardiology Department CHU Fattouma Bourguiba Monastir- Tunisia, Monastir, Tunisia
| | - Gerard Lizard
- Team 'Biochemistry of Peroxisome, Inflammation and Lipid Metabolism' EA 7270 /University of Bourgogne-Franche Comté / INSERM, Dijon, France
| | - Mohamed Hammami
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
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11
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Ganguly R, Hasanally D, Stamenkovic A, Maddaford TG, Chaudhary R, Pierce GN, Ravandi A. Alpha linolenic acid decreases apoptosis and oxidized phospholipids in cardiomyocytes during ischemia/reperfusion. Mol Cell Biochem 2017. [DOI: 10.1007/s11010-017-3104-z] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Hirata Y, Takahashi M, Kudoh Y, Kano K, Kawana H, Makide K, Shinoda Y, Yabuki Y, Fukunaga K, Aoki J, Noguchi T, Matsuzawa A. trans-Fatty acids promote proinflammatory signaling and cell death by stimulating the apoptosis signal-regulating kinase 1 (ASK1)-p38 pathway. J Biol Chem 2017; 292:8174-8185. [PMID: 28360100 DOI: 10.1074/jbc.m116.771519] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/29/2017] [Indexed: 12/14/2022] Open
Abstract
Food-borne trans-fatty acids (TFAs) are mainly produced as byproducts during food manufacture. Recent epidemiological studies have revealed that TFA consumption is a major risk factor for various disorders, including atherosclerosis. However, the underlying mechanisms in this disease etiology are largely unknown. Here we have shown that TFAs potentiate activation of apoptosis signal-regulating kinase 1 (ASK1) induced by extracellular ATP, a damage-associated molecular pattern leaked from injured cells. Major food-associated TFAs such as elaidic acid (EA), linoelaidic acid, and trans-vaccenic acid, but not their corresponding cis isomers, dramatically enhanced extracellular ATP-induced apoptosis, accompanied by elevated activation of the ASK1-p38 pathway in a macrophage-like cell line, RAW264.7. Moreover, knocking out the ASK1-encoding gene abolished EA-mediated enhancement of apoptosis. We have reported previously that extracellular ATP induces apoptosis through the ASK1-p38 pathway activated by reactive oxygen species generated downstream of the P2X purinoceptor 7 (P2X7). However, here we show that EA did not increase ATP-induced reactive oxygen species generation but, rather, augmented the effects of calcium/calmodulin-dependent kinase II-dependent ASK1 activation. These results demonstrate that TFAs promote extracellular ATP-induced apoptosis by targeting ASK1 and indicate novel TFA-associated pathways leading to inflammatory signal transduction and cell death that underlie the pathogenesis and progression of TFA-induced atherosclerosis. Our study thus provides insight into the pathogenic mechanisms of and proposes potential therapeutic targets for these TFA-related disorders.
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Affiliation(s)
| | | | | | - Kuniyuki Kano
- Laboratory of Molecular and Cellular Biochemistry; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology, Chiyoda-ku, 100-0004 Tokyo, Japan
| | | | | | - Yasuharu Shinoda
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, 980-8578 Sendai, Japan
| | - Yasushi Yabuki
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, 980-8578 Sendai, Japan
| | - Kohji Fukunaga
- Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aoba, Aramaki, Aoba-ku, 980-8578 Sendai, Japan
| | - Junken Aoki
- Laboratory of Molecular and Cellular Biochemistry; Japan Agency for Medical Research and Development, Core Research for Evolutional Science and Technology, Chiyoda-ku, 100-0004 Tokyo, Japan
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13
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Fetal and neonatal exposure to trans-fatty acids impacts on susceptibility to atherosclerosis in apo E*3 Leiden mice. Br J Nutr 2017; 117:377-385. [DOI: 10.1017/s0007114517000137] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractNutrition during pregnancy can impact on the susceptibility of the offspring to CVD. Postnatal consumption of trans-fatty acids (TFA), associated with partially hydrogenated vegetable oil (PHVO), increases the risk of atherosclerosis, whereas evidence for those TFA associated with ruminant-derived dairy products and meat remain equivocal. In this study, we investigate the impact of maternal consumption of dietary PHVO (P) and ruminant milk fat (R) on the development of atherosclerosis in their offspring, using the transgenic apoE*3 Leiden mouse. Dams were fed either chow (C) or one of three high-fat diets: a diet reflecting the SFA content of a ‘Western’ diet (W) or one enriched with either P or R. Diets were fed during either pregnancy alone or pregnancy and lactation. Weaned offspring were then transferred to an atherogenic diet for 12 weeks. Atherosclerosis was assessed as lipid staining in cross-sections of the aorta. There was a significant effect of maternal diet during pregnancy on development of atherosclerosis (P=0·013) in the offspring with those born of mothers fed R or P during pregnancy displaying smaller lesions that those fed C or W. This was not associated with changes in total or lipoprotein cholesterol. Continuing to feed P during lactation increased atherosclerosis compared with that seen in offspring of dams fed P only during pregnancy (P<0·001). No such effect was seen in those from mothers fed R (P=0·596) or W (P=901). We conclude that dietary TFA have differing effects on cardiovascular risk at different stages of the lifecycle.
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Herreras Z, Cofán M, Catalan M, Calvo C, Pinyol M, Amor AJ, Gilabert R, Ros E, Sala-Vila A, Ortega E. The proportion of total C18:1 trans-fatty acids in red blood cell membranes relates to carotid plaque prevalence. J Nutr Biochem 2016; 38:81-85. [PMID: 27732912 DOI: 10.1016/j.jnutbio.2016.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 08/10/2016] [Accepted: 08/10/2016] [Indexed: 01/01/2023]
Abstract
Consistent evidence supports the pro-atherogenic properties of dietary trans-fatty acids (TFAs). However, there are no clinical data on TFA intake and atheroma plaque. We cross sectionally investigated whether the proportion of total C18:1 TFA in red blood cells (RBCs), which mirrors dietary TFA intake, independently relates to carotid plaque prevalence in subjects with new-onset type 2 diabetes mellitus without prior cardiovascular disease (n=101, 56% men, mean age 61 years) and age- and sex-matched controls (n=96). RBC fatty acid composition was determined by gas chromatography. Plaque (defined as carotid intima-media thickness ≥1.5 mm) was sonographically assessed at three bilateral carotid segments. In multivariate models adjusting for group (diabetes or control) and classical cardiovascular risk factors, for each 0.1% increase in RBC total C18:1 TFA isomers, plaque prevalence increased by 53% (P=.002). In contrast, for each 0.1% increase in RBC alpha-linolenic acid, the vegetable omega-3 fatty acid, plaque prevalence decreased by 43% (P<.001). We conclude that the RBC membrane proportion of total C18:1 TFA, considered a proxy of intake, directly relates to the ultrasound feature that best predicts future cardiovascular events. Our findings support current recommendations to limit TFA intake for cardiovascular health promotion.
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Affiliation(s)
- Zoe Herreras
- Consorci d'Atenció Primària de Salut Eixample (CAPSE), Grup Transversal de Recerca en Atenció Primària, Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - Montserrat Cofán
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Lipid Clinic, Department of Endocrinology and Nutrition, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - Marta Catalan
- Consorci d'Atenció Primària de Salut Eixample (CAPSE), Grup Transversal de Recerca en Atenció Primària, Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - Carlos Calvo
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Lipid Clinic, Department of Endocrinology and Nutrition, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - Montserrat Pinyol
- Consorci d'Atenció Primària de Salut Eixample (CAPSE), Grup Transversal de Recerca en Atenció Primària, Institut d'Investigacions Biomèdiques August Pi Sunyer (IDIBAPS), Barcelona, Spain
| | - Antonio J Amor
- Lipid Clinic, Department of Endocrinology and Nutrition, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - Rosa Gilabert
- Diagnostic Imaging Centre, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - Emilio Ros
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Lipid Clinic, Department of Endocrinology and Nutrition, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
| | - Aleix Sala-Vila
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Lipid Clinic, Department of Endocrinology and Nutrition, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain.
| | - Emilio Ortega
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Lipid Clinic, Department of Endocrinology and Nutrition, Hospital Clínic de Barcelona, IDIBAPS, Barcelona, Spain
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Ganguly R, LaVallee R, Maddaford TG, Devaney B, Bassett CM, Edel AL, Pierce GN. Ruminant and industrial trans-fatty acid uptake in the heart. J Nutr Biochem 2016; 31:60-6. [DOI: 10.1016/j.jnutbio.2015.12.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 11/26/2015] [Accepted: 12/22/2015] [Indexed: 01/23/2023]
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Liu X, Lian H, Ruan Y, Liang R, Zhao X, Routledge M, Fan Z. Association of Exposure to particular matter and Carotid Intima-Media Thickness: A Systematic Review and Meta-Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2015; 12:12924-40. [PMID: 26501300 PMCID: PMC4627008 DOI: 10.3390/ijerph121012924] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 09/29/2015] [Accepted: 10/09/2015] [Indexed: 01/06/2023]
Abstract
Background: Long time exposure to particular matter has been linked to myocardial infarction, stroke and blood pressure, but its association with atherosclerosis is not clear. This meta-analysis was aimed at assessing whether PM2.5 and PM10 have an effect on subclinical atherosclerosis measured by carotid intima-media thickness (CIMT). Methods: Pubmed, Ovid Medline, Embase and NICK between 1948 and 31 March 2015 were searched by combining the keywords about exposure to the outcome related words. The random-effects model was applied in computing the change of CIMT and their corresponding 95% confidence interval (95% CI). The effect of potential confounding factors was assessed by stratified analysis and the impact of traffic proximity was also estimated. Results: Among 56 identified studies, 11 articles satisfied the inclusion criteria. In overall analysis increments of 10 μg/m3 in PM2.5 and PM10 were associated with an increase of CIMT (16.79 μm; 95% CI, 4.95–28.63 μm and 4.13 μm; 95% CI, −5.79–14.04 μm, respectively). Results shown in subgroup analysis had reference value for comparing with those of the overall analysis. The impact of traffic proximity on CIMT was uncertain. Conclusions: Exposure to PM2.5 had a significant association with CIMT and for women the effect may be more obvious.
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Affiliation(s)
- Xiaole Liu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Hui Lian
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Yanping Ruan
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Ruijuan Liang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Xiaoyi Zhao
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
| | - Michael Routledge
- Leeds Institute of Cardiovascular & Metabolic Medicine, University of Leeds, Leeds LS2 9JT, UK.
| | - Zhongjie Fan
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China.
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Ganguly R, Pierce GN. The toxicity of dietary trans fats. Food Chem Toxicol 2015; 78:170-6. [DOI: 10.1016/j.fct.2015.02.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2014] [Revised: 01/27/2015] [Accepted: 02/01/2015] [Indexed: 02/02/2023]
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Dhibi M, Mnari A, Brahmi F, Houas Z, Chargui I, Kharroubi W, Hammami M. Consumption of Oxidized and Partially Hydrogenated Oils Differentially Induces Trans-Fatty Acids Incorporation in Rats' Heart and Dyslipidemia. J Am Coll Nutr 2015; 35:125-35. [PMID: 25794039 DOI: 10.1080/07315724.2014.938183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVES A direct effect of process-induced trans-fatty acids (TFAs) on nonalcoholic fatty liver disease (NAFLD) as a cardiovascular disease (CVD) risk factor has previously been shown. We hypothesized that TFAs directly induced CVD. This article describes an investigation of the association between TFAs, provided by the consumption of oxidized soybean oil and margarine, and plasma lipid profiles, coronary artery lesions, and coronary fatty acids distribution in rats. Male rats were fed a standard chow or high-fat diet containing different TFA levels ranging from <1%, <2%, and >2% of total fat in fresh soybean oil, oxidized soybean oil, and margarine, respectively, for 4 weeks. RESULTS The results indicated that the high-fat diets differently changed the plasma lipid profiles by significantlt increasing triglycerides, total cholesterol, low-density lipoprotein cholesterol, and the ratio of low-density to high-density lipoprotein cholesterol compared to control rats. Compared to fresh soybean oil, oxidized oil further increased plasma lipid markers. The strongest inflammatory effect was induced by margarine, which contains the highest level of TFAs, or 2% of total fat. Total TFAs in the heart of the margarine-fed group were increased by 4.7 regarding to control and by 2.17 and 2.6 relative to groups receiving oxidized and fresh oil, respectively. Increased TFAs consumption was associated with increased histological aspects of atherosclerotic lesions in a dose-dependent manner. CONCLUSION In conclusion, process-induced TFAs cause changes including proatherogenic plasma lipid markers, heart fatty acid profiles, and coronary artery histology depending on the TFA level in the supplemented fat and therefore on the type of technological process used.
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Affiliation(s)
- Madiha Dhibi
- a Laboratory of Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir , Monastir , TUNISIA
| | - Amira Mnari
- a Laboratory of Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir , Monastir , TUNISIA
| | - Faten Brahmi
- a Laboratory of Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir , Monastir , TUNISIA
| | - Zohra Houas
- b Laboratory of Histology Cytology and Genetics, Faculty of Medicine, University of Monastir , Monastir , TUNISIA
| | - Issam Chargui
- b Laboratory of Histology Cytology and Genetics, Faculty of Medicine, University of Monastir , Monastir , TUNISIA
| | - Wafa Kharroubi
- a Laboratory of Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir , Monastir , TUNISIA
| | - Mohamed Hammami
- a Laboratory of Nutrition-Functional Foods and Vascular Health, Faculty of Medicine, University of Monastir , Monastir , TUNISIA
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Kondo K, Ishida T, Yasuda T, Nakajima H, Mori K, Tanaka N, Mori T, Monguchi T, Shinohara M, Irino Y, Toh R, Rikitake Y, Kiyomizu K, Tomiyama Y, Yamamoto J, Hirata KI. Trans-fatty acid promotes thrombus formation in mice by aggravating antithrombogenic endothelial functions via Toll-like receptors. Mol Nutr Food Res 2015; 59:729-40. [PMID: 25546502 DOI: 10.1002/mnfr.201400537] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2014] [Revised: 11/14/2014] [Accepted: 12/17/2014] [Indexed: 11/06/2022]
Abstract
SCOPE Since excessive intake of trans-fatty acid (TFA) increases the risk of myocardial infarction, we investigated the effects of TFA on thrombus formation using animal and cell culture experiments. METHODS AND RESULTS C57BL/6 mice were fed a diet containing TFA or cis-fatty acid (5% each of total calories) or a chow diet for 4 weeks, and thrombus formation was induced in the carotid artery by He-Ne laser irradiation. The high-TFA diet significantly promoted thrombus formation in the carotid artery compared to the chow or cis-fatty acid diet. TFA activated the inflammatory signaling pathway in cultured endothelial cells and in mice; aortic gene expression levels of antithrombogenic molecules, including thrombomodulin and tissue factor pathway inhibitor, were decreased, and the expression levels of prothrombogenic molecules were increased in TFA-treated mice. TFA markedly upregulated the prothrombogenic molecules and downregulated the antithrombogenic molecules in endothelial cells. In addition, TFA induced phosphorylation of c-Jun N-terminal kinase, extracellular signal-regulated kinase, and nuclear factor-κB. The TFA-activated signal pathways and prothrombogenic phenotypic changes of endothelial cells were inhibited by genetic or pharmacological inactivation of Toll-like receptors 2 and 4. CONCLUSION TFA aggravates the antithrombogenic phenotypes of vascular endothelial cells via Toll-like receptors and promotes thrombus formation in mice.
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Affiliation(s)
- Kensuke Kondo
- Division of Cardiovascular Medicine, Graduate School of Medicine, Kobe University, Kobe, Japan
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Mells JE, Fu PP, Kumar P, Smith T, Karpen SJ, Anania FA. Saturated fat and cholesterol are critical to inducing murine metabolic syndrome with robust nonalcoholic steatohepatitis. J Nutr Biochem 2014; 26:285-92. [PMID: 25577467 DOI: 10.1016/j.jnutbio.2014.11.002] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 10/27/2014] [Accepted: 11/03/2014] [Indexed: 12/16/2022]
Abstract
UNLABELLED Nonalcoholic fatty liver disease (NAFLD) is the hepatic manifestation of the metabolic syndrome (MetS). Up to a third of NAFLD subjects are at risk for developing nonalcoholic steatohepatitis (NASH). Many rodent models fail to replicate both MetS and NASH. The purpose of this study was to develop a reliable mouse model of NASH and MetS using a diet containing cholesterol, saturated fat and carbohydrate that is reflective of Western diets of North Americans. EXPERIMENTAL DESIGN We used adult male C57BL/6 J 4- to 5-week-old mice and administered a solid diet containing 0.2% cholesterol, 45% of its calories from fat, with 30% of the fat in the form of partially hydrogenated vegetable oil. We also provided carbohydrate largely as high-fructose corn syrup equivalent in water. In a separate cohort, we gave the identical diet in the absence of cholesterol. Glucose and insulin tolerance testing was conducted throughout the feeding period. The feeding was conducted for 16 weeks, and the mice were sacrificed for histological analysis, markers of MetS, liver inflammation, circulating lipids, as well as liver staining for fibrosis and alpha smooth muscle actin (α-SMA). RESULTS We found that cholesterol significantly increased serum leptin, interleukin-6, liver weight and liver weight/body weight ratio, fibrosis and liver α-SMA. CONCLUSIONS Mice administered a diet accurately reflecting patterns associated with humans afflicted with MetS can reliably replicate features of MetS, NASH and significant liver fibrosis. The model we describe significantly reduces the time by several months for development of stage 3 hepatic fibrosis.
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Affiliation(s)
- Jamie E Mells
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Ping P Fu
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Pradeep Kumar
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Tekla Smith
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Saul J Karpen
- Division of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Frank A Anania
- Division of Digestive Diseases, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA.
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21
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Ryan JG. No longer "GRAS": The trans fatty acids debate. Clin Ther 2014; 36:312-4. [PMID: 24636815 DOI: 10.1016/j.clinthera.2014.02.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2014] [Revised: 02/12/2014] [Accepted: 02/12/2014] [Indexed: 11/25/2022]
Affiliation(s)
- John G Ryan
- Topic Editor for Endocrinology, Diabetes, and Other Endocrine Disorders
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22
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Erythrocyte membranetrans-fatty acid index is positively associated with a 10-year CHD risk probability. Br J Nutr 2013; 109:1695-703. [DOI: 10.1017/s0007114513000196] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Industry-generatedtrans-fatty acids (TFA) are detrimental to risk of CHD, but ruminant-originated TFA have been reported as neutral or equivocal. Therefore, the total TFA amount should not be the only factor considered when measuring the effects of TFA. In the present study, we addressed whether a version of the TFA index that unifies the effects of different TFA isomers into one equation could be used to reflect CHD risk probability (RP). The present cross-sectional study involved 2713 individuals divided into four groups that represented different pathological severities and potential risks of CHD: acute coronary syndrome (ACS,n581); chronic coronary artery disease (CCAD,n631); high-risk population (HRP,n659); healthy volunteers (HV,n842). A 10-year CHD RP was calculated. Meanwhile, the equation of the TFA index was derived using five TFA isomers (trans-16 : 1n-7,trans-16 : 1n-9,trans-18 : 1n-7,trans-18 : 1n-9 andtrans-18 : 2n-6n-9), which were detected in the whole blood, serum and erythrocyte membranes of each subject. The TFA index and the 10-year CHD RP were compared by linear models. It was shown that only in the erythrocyte membrane, the TFA isomers were significantly different between the groups. In the ACS group, industry-generated TFA (trans-16 : 1n-9,trans-18 : 1n-9 andtrans-18 : 2n-6n-9) were the highest, whereas ruminant-originated TFA (trans-16 : 1n-7 andtrans-18 : 1n-7), which manifested an inverse relationship with CHD, were the lowest, and vice versa in the HV group. The TFA index decreased progressively from 7·12 to 5·06, 3·11 and 1·92 in the ACS, CCAD, HRP and HV groups, respectively. The erythrocyte membrane TFA index was positively associated with the 10-year CHD RP (R20·9981) and manifested a strong linear correlation, which might reflect the true pathological severity of CHD.
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Menaa F, Menaa A, Menaa B, Tréton J. Trans-fatty acids, dangerous bonds for health? A background review paper of their use, consumption, health implications and regulation in France. Eur J Nutr 2012; 52:1289-302. [PMID: 23269652 DOI: 10.1007/s00394-012-0484-4] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Accepted: 12/09/2012] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Trans-fatty acids (TFAs) can be produced either from bio-hydrogenation in the rumen of ruminants or by industrial hydrogenation. While most of TFAs' effects from ruminants are poorly established, there is increasing evidence that high content of industrial TFAs may cause deleterious effects on human health and life span. MATERIAL AND METHODS Indeed, several epidemiological and experimental studies strongly suggest that high content of most TFA isomers could represent a higher risk of developing cardiovascular diseases by a mechanism that lowers the "good HDL cholesterol" and raises the "bad LDL cholesterol." RESULTS With respect to the general precautionary principle and considering the existence of an international policy consensus regarding the need for public health action, some industrialized countries, such as France, are still not sufficiently involved in preventive strategies that aim to efficiently reduce TFAs content and TFAs consumption and produce alternative healthier fat sources. CONCLUSION In this manuscript, we provide an overview about TFAs origins, their use and consumption among French population. We also discuss their potential human health implications as well as the preventive and regulatory measures undertaken in France.
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Affiliation(s)
- Farid Menaa
- Department of Food Sciences and Technology, Fluorotronics Inc., 2453 Cades Way, San Diego, CA 92081, USA.
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Abstract
Coronary heart disease is becoming a worldwide epidemic and diet and lifestyle are well known contributing factors. Identifying the kinds of foods that may have a cardioprotective or cardiotoxic effect and understanding their molecular mechanisms of action has become of increasing importance. Through largely epidemiological evidence, trans fatty acid (TFA) intake has been associated with a variety of cardiovascular complications including atherosclerosis. Traditionally, industrial TFAs (iTFAs) have been associated with these deleterious cardiovascular effects. However, there is a current body of research that suggests that ruminant trans fats (rTFAs) may have a cardioprotective role within the heart. The molecular mechanisms whereby TFAs are delivering their effects are largely unknown. In the following review, we discuss recent in vitro, animal and epidemiological research to better understand the effect of TFAs in the diet on cardiovascular disease, particularly atherosclerosis.
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Affiliation(s)
- Riya Ganguly
- Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, Winnipeg, Manitoba, Canada
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Machado RM, Nakandakare ER, Quintao ECR, Cazita PM, Koike MK, Nunes VS, Ferreira FD, Afonso MS, Bombo RPA, Machado-Lima A, Soriano FG, Catanozi S, Lottenberg AM. Omega-6 polyunsaturated fatty acids prevent atherosclerosis development in LDLr-KO mice, in spite of displaying a pro-inflammatory profile similar to trans fatty acids. Atherosclerosis 2012; 224:66-74. [PMID: 22809447 DOI: 10.1016/j.atherosclerosis.2012.06.059] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 06/13/2012] [Accepted: 06/21/2012] [Indexed: 11/28/2022]
Abstract
The development of atherosclerosis and the inflammatory response were investigated in LDLr-KO mice on three high-fat diets (40% energy as fat) for 16 weeks: trans (TRANS), saturated (SAFA) or ω-6 polyunsaturated (PUFA) fats. The following parameters were measured: plasma lipids, aortic root total cholesterol (TC), lesion area (Oil Red-O), ABCA1 content and macrophage infiltration (immunohistochemistry), collagen content (Picrosirius-red) and co-localization of ABCA1 and macrophage (confocal microscopy) besides the plasma inflammatory markers (IL-6, TNF-α) and the macrophage inflammatory response to lipopolysaccharide from Escherichia coli (LPS). As expected, plasma TC and TG concentrations were lower on the PUFA diet than on TRANS or SAFA diets. Aortic intima macrophage infiltration, ABCA1 content, and lesion area on PUFA group were lower compared to TRANS and SAFA groups. Macrophages and ABCA1 markers did not co-localize in the atherosclerotic plaque, suggesting that different cell types were responsible for the ABCA1 expression in plaques. Compared to PUFA, TRANS and SAFA presented higher collagen content and necrotic cores in atherosclerotic plaques. In the artery wall, TC was lower on PUFA compared to TRANS group; free cholesterol was lower on PUFA compared to TRANS and SAFA; cholesteryl ester concentration did not vary amongst the groups. Plasma TNF-α concentration on PUFA and TRANS-fed mice was higher compared to SAFA. No difference was observed in IL-6 concentration amongst groups. Regarding the macrophage inflammatory response to LPS, TRANS and PUFA presented higher culture medium concentrations of IL-6 and TNF-α as compared to SAFA. The PUFA group showed the lowest amount of the anti-inflammatory marker IL-10 compared to TRANS and SAFA groups. In conclusion, PUFA intake prevented atherogenesis, even in a pro-inflammatory condition.
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Affiliation(s)
- Roberta M Machado
- Endocrinology and Metabolism Division, Faculty of Medical Sciences of the University of Sao Paulo, Lipids Laboratory, LIM 10, SP, Brazil
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Zhi T, Yanhong L, Rui L, Jian S, Jinping L, Junzhu W. Trans fatty acids influence the oxidation of LDL in ECV304 cells. EUR J LIPID SCI TECH 2012. [DOI: 10.1002/ejlt.201100292] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Bassett CMC, McCullough RS, Edel AL, Patenaude A, LaVallee RK, Pierce GN. The α-linolenic acid content of flaxseed can prevent the atherogenic effects of dietary trans fat. Am J Physiol Heart Circ Physiol 2011; 301:H2220-6. [DOI: 10.1152/ajpheart.00958.2010] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Dietary intake of industrially hydrogenated trans fatty acids (TFA) has been associated with coronary heart disease. Dietary flaxseed can inhibit atherosclerosis induced by dietary cholesterol. The aim of this study was to determine whether supplementing the diet with flaxseed could protect against atherosclerosis induced by a diet enriched in TFA. Low-density lipoprotein receptor-deficient (LDLr−/−) mice were fed 1 of 14 experimental diets for 14 wk containing one of two fat sources [regular (pork/soy) or trans fat] at two concentrations (4 or 8%) and supplemented with or without dietary cholesterol (2%), whole ground flaxseed, or one of the components of flaxseed [α-linolenic acid (ALA), defatted fiber, or lignan]. Adding flaxseed to the diet partially mitigated the rise in circulating cholesterol levels induced by the cholesterol-enriched diet. Atherosclerosis was stimulated by TFA and/or cholesterol. Including milled flaxseed to an atherogenic diet significantly reduced atherosclerosis compared with the groups that consumed cholesterol and/or TFA. ALA was the only component within flaxseed that could inhibit the atherogenic action of cholesterol and/or TFA on its own. Dietary flaxseed protects against atherosclerotic development induced by TFA and cholesterol feeding through its content of ALA.
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Affiliation(s)
- Chantal M. C. Bassett
- Canadian Centre for Agri-Food Research in Health and Medicine and the Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, Department of Physiology, Faculties of Medicine and Pharmacy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Richelle S. McCullough
- Canadian Centre for Agri-Food Research in Health and Medicine and the Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, Department of Physiology, Faculties of Medicine and Pharmacy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Andrea L. Edel
- Canadian Centre for Agri-Food Research in Health and Medicine and the Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, Department of Physiology, Faculties of Medicine and Pharmacy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Amanda Patenaude
- Canadian Centre for Agri-Food Research in Health and Medicine and the Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, Department of Physiology, Faculties of Medicine and Pharmacy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Renee K. LaVallee
- Canadian Centre for Agri-Food Research in Health and Medicine and the Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, Department of Physiology, Faculties of Medicine and Pharmacy, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Grant N. Pierce
- Canadian Centre for Agri-Food Research in Health and Medicine and the Institute of Cardiovascular Sciences, St. Boniface Hospital Research Centre, Department of Physiology, Faculties of Medicine and Pharmacy, University of Manitoba, Winnipeg, Manitoba, Canada
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Minville-Walz M, Gresti J, Pichon L, Bellenger S, Bellenger J, Narce M, Rialland M. Distinct regulation of stearoyl-CoA desaturase 1 gene expression by cis and trans C18:1 fatty acids in human aortic smooth muscle cells. GENES AND NUTRITION 2011; 7:209-16. [PMID: 22057664 DOI: 10.1007/s12263-011-0258-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Accepted: 10/25/2011] [Indexed: 12/25/2022]
Abstract
Consumption of trans fatty acids is positively correlated with cardiovascular diseases and with atherogenic risk factors. Trans fatty acids might play their atherogenic effects through lipid metabolism alteration of vascular cells. Accumulation of lipids in vascular smooth muscle cells is a feature of atherosclerosis and a consequence of lipid metabolism alteration. Stearoyl-CoA desaturase 1 (scd1) catalyses the production of monounsaturated fatty acids (e.g. oleic acid) and its expression is associated with lipogenesis induction and with atherosclerosis development. We were interested in analysing the regulation of delta-9 desaturation rate and scd1 expression in human aortic smooth muscle cells (HASMC) exposed to cis and trans C18:1 fatty acid isomers (cis-9 oleic acid, trans-11 vaccenic acid or trans-9 elaidic acid) for 48 h at 100 μM. Treatment of HASMC with these C18:1 fatty acid isomers led to differential effects on delta-9 desaturation; oleic acid repressed the desaturation rate more potently than trans-11 vaccenic acid, whereas trans-9 elaidic acid increased the delta-9 desaturation rate. We then correlated the delta-9 desaturation rate with the expression of scd1 protein and mRNA. We showed that C18:1 fatty acids controlled the expression of scd1 at the transcriptional level in HASMC, leading to an increase in scd1 mRNA content by trans-9 elaidic acid treatment, whereas a decrease in scd1 mRNA content was observed with cis-9 oleic acid and trans-11 vaccenic acid treatments. Altogether, this work highlights a differential capability of C18:1 fatty acid isomers to control scd1 gene expression, which presumes of different consequent effects on cell functions.
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Affiliation(s)
- M Minville-Walz
- Université de Bourgogne, Centre de recherche INSERM, UMR866, 6 Boulevard Gabriel, 21000, Dijon, France
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Aliani M, Ryland D, Pierce GN. Effect of flax addition on the flavor profile of muffins and snack bars. Food Res Int 2011. [DOI: 10.1016/j.foodres.2011.01.044] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Aronis KN, Joseph RJ, Blackburn GL, Mantzoros C. trans-Fatty acids, insulin resistance/diabetes, and cardiovascular disease risk: should policy decisions be based on observational cohort studies, or should we be waiting for results from randomized placebo-controlled trials? Metabolism 2011; 60:901-5. [PMID: 21684360 DOI: 10.1016/j.metabol.2011.04.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Accepted: 04/08/2011] [Indexed: 12/20/2022]
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