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McGurk KA, Farrell L, Kendall AC, Keavney BD, Nicolaou A. Genetic analyses of circulating PUFA-derived mediators identifies heritable dihydroxyeicosatrienoic acid species. Prostaglandins Other Lipid Mediat 2022; 160:106638. [PMID: 35472599 DOI: 10.1016/j.prostaglandins.2022.106638] [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: 12/13/2021] [Revised: 03/30/2022] [Accepted: 04/20/2022] [Indexed: 10/18/2022]
Abstract
Estimates of heritability are the first step in identifying a trait with substantial variation due to genetic factors. Large-scale genetic analyses can identify the DNA variants that influence the levels of circulating lipid species and the statistical technique Mendelian randomisation can use these DNA variants to address potential causality of these lipids in disease. We estimated the heritability of plasma eicosanoids, octadecanoids and docosanoids to identify those lipid species with substantial heritability. We analysed plasma lipid mediators in 31 White British families (196 participants) ascertained for high blood pressure and deeply clinically and biochemically phenotyped over a 25-year period. We found that the dihydroxyeicosatrienoic acid (DHET) species, 11,12-DHET and 14,15-DHET, products of arachidonic acid metabolism by cytochrome P450 (CYP) monooxygenase and soluble epoxide hydrolase (sEH), exhibited substantial heritability (h2 = 33%-37%; Padj<0.05). Identification of these two heritable bioactive lipid species allows for future large-scale, targeted, lipidomics-genomics analyses to address causality in cardiovascular and other diseases.
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Affiliation(s)
- Kathryn A McGurk
- Division of Cardiovascular Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK; Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Laura Farrell
- Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Alexandra C Kendall
- Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK
| | - Bernard D Keavney
- Manchester Heart Centre, Manchester University NHS Foundation Trust, UK
| | - Anna Nicolaou
- Laboratory for Lipidomics and Lipid Research, Division of Pharmacy and Optometry, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK.
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2
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Chen J, Zou L, Lu G, Grinchuk O, Fang L, Ong DST, Taneja R, Ong CN, Shen HM. PFKP alleviates glucose starvation-induced metabolic stress in lung cancer cells via AMPK-ACC2 dependent fatty acid oxidation. Cell Discov 2022; 8:52. [PMID: 35641476 PMCID: PMC9156709 DOI: 10.1038/s41421-022-00406-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 03/10/2022] [Indexed: 11/08/2022] Open
Abstract
Cancer cells adopt metabolic reprogramming to promote cell survival under metabolic stress. A key regulator of cell metabolism is AMP-activated protein kinase (AMPK) which promotes catabolism while suppresses anabolism. However, the underlying mechanism of AMPK in handling metabolic stress in cancer remains to be fully understood. In this study, by performing a proteomics screening of AMPK-interacting proteins in non-small-cell lung cancer (NSCLC) cells, we discovered the platelet isoform of phosphofructokinase 1 (PFKP), a rate-limiting enzyme in glycolysis. Moreover, PFKP was found to be highly expressed in NSCLC patients associated with poor survival. We demonstrated that the interaction of PFKP and AMPK was greatly enhanced upon glucose starvation, a process regulated by PFKP-associated metabolites. Notably, the PFKP-AMPK interaction promoted mitochondrial recruitment of AMPK which subsequently phosphorylated acetyl-CoA carboxylase 2 (ACC2) to enhance long-chain fatty acid oxidation, a process helping maintenance of the energy and redox homeostasis and eventually promoting cancer cell survival under glucose starvation. Collectively, we revealed a critical non-glycolysis-related function of PFKP in regulating long-chain fatty acid oxidation via AMPK to alleviate glucose starvation-induced metabolic stress in NSCLC cells.
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Affiliation(s)
- Jiaqing Chen
- NUS Graduate School Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Li Zou
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Guang Lu
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Oleg Grinchuk
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Lei Fang
- Jiangsu Key Laboratory of Molecular Medicine, Model Animal Research Center, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Derrick Sek Tong Ong
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Reshma Taneja
- NUS Graduate School Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore, Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Choon-Nam Ong
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore
| | - Han-Ming Shen
- NUS Graduate School Integrative Sciences and Engineering Programme (ISEP), National University of Singapore, Singapore, Singapore.
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
- Faculty of Health Sciences, Ministry of Education Frontiers Science Center for Precision Oncology, University of Macau, Taipa, Macau, China.
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3
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Urine 5-Eicosatetraenoic Acids as Diagnostic Markers for Obstructive Sleep Apnea. Antioxidants (Basel) 2021; 10:antiox10081242. [PMID: 34439490 PMCID: PMC8389315 DOI: 10.3390/antiox10081242] [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: 06/15/2021] [Revised: 07/27/2021] [Accepted: 07/30/2021] [Indexed: 11/17/2022] Open
Abstract
Early detection of obstructive sleep apnea (OSA) is needed to reduce cardiovascular sequelae and mortality. Full-night polysomnography has been used for diagnosing OSA, but it is too expensive and inconvenient for patients to handle. Metabolome-wide analyses were performed to find and validate surrogate markers for OSA. We further investigated the mechanism underlying hypoxic induction of the markers in human cells and mice. Arachidonic acid derivatives 5-HETE and 5-oxoETE were detected in urine samples. The levels (mean ± SD, ng per mg creatinine) of 5-HETE and 5-oxoETE were 56.4 ± 26.2 and 46.9 ± 18.4 in OSA patients, respectively, which were significantly higher than those in controls (22.5 ± 4.6 and 18.7 ± 3.6). Both levels correlated with the apnea-hypopnea index and the lowest oxygen saturation on polysomnography. After the treatment with the continuous positive airway pressure, the metabolite levels were significantly reduced compared with those before the treatment. In human mononuclear cells subjected to intermittent hypoxia, 5-HETE and 5-oxoETE productions were induced by hypoxia-inducible factor 1 and glutathione peroxidase. When mice were exposed to intermittent hypoxia, 5-HETE and 5-oxoETE were excreted more in urine. They were identified and verified as new OSA markers reflecting hypoxic stress. The OSA markers could be used for OSA diagnosis and therapeutic evaluation.
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de Araújo AR, Sampaio GR, da Silva LR, Portal VL, Markoski MM, de Quadros AS, Rogero MM, da Silva Torres EAF, Marcadenti A. Effects of extra virgin olive oil and pecans on plasma fatty acids in patients with stable coronary artery disease. Nutrition 2021; 91-92:111411. [PMID: 34425320 DOI: 10.1016/j.nut.2021.111411] [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: 01/05/2021] [Revised: 05/26/2021] [Accepted: 07/04/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE The aim of this study was to determine the effects of a healthy diet supplemented with extra virgin olive oil or pecans on plasma fatty acids (PFAs) in patients with stable coronary artery disease (CAD). METHODS Patients 40 to 80 y of age were randomized to one of three dietary interventions (allocation ratio 1: 1: 1): healthy diet based on guidelines (control group [CG]), healthy diet supplemented with 30 g/d of pecans (PNG), or a healthy diet supplemented with 30 mL/d of extra virgin olive oil (OOG). PFAs were identified at baseline and at the end of follow-up (12 wk), and correlations between dietary fatty acids intake, PFAs, and clinical biomarkers of the lipid profile were also assessed before and after the interventions. RESULTS Among 149 participants included in the analysis (43 CG; 51 PNG; and 55 OOG), correlations were observed between food intake, PFAs, and lipid profile before and after interventions independent of statins used, but all were considered weak. At the end of the study, the OOG showed increased concentrations of oleic fatty acid independently of the type of statin in use (1.49%; 95% confidence interval, 0.08-2.89; P = 0.029); however, there were no significant differences between the groups regarding the final mean values of oleic fatty acid or in the other PFAs. CONCLUSIONS In patients with stable CAD, there were no significant differences in PFAs after 12 wk according to dietary interventions evaluated.
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Affiliation(s)
- Aline Ramos de Araújo
- Graduate Program in Nutrition Sciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - Geni Rodrigues Sampaio
- Department of Nutrition, School of Public Health, Universidade de São Paulo (USP), São Paulo, Brazil
| | | | - Vera Lúcia Portal
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul (IC/FUC), Porto Alegre, Rio Grande do Sul, Brazil
| | - Melissa Medeiros Markoski
- Graduate Program in Biosciences, Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, Rio Grande do Sul, Brazil
| | - Alexandre Schaan de Quadros
- Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul (IC/FUC), Porto Alegre, Rio Grande do Sul, Brazil
| | - Marcelo Macedo Rogero
- Department of Nutrition, School of Public Health, Universidade de São Paulo (USP), São Paulo, Brazil
| | | | - Aline Marcadenti
- HCor Research Institute, Hospital do Coração (IP-HCor), São Paulo, Brazil; Graduate Program in Health Sciences (Cardiology), Instituto de Cardiologia/Fundação Universitária de Cardiologia do Rio Grande do Sul (IC/FUC), Porto Alegre, Rio Grande do Sul, Brazil.
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Le DE, García-Jaramillo M, Bobe G, Alcazar Magana A, Vaswani A, Minnier J, Jump DB, Rinkevich D, Alkayed NJ, Maier CS, Kaul S. Plasma Oxylipins: A Potential Risk Assessment Tool in Atherosclerotic Coronary Artery Disease. Front Cardiovasc Med 2021; 8:645786. [PMID: 33969011 PMCID: PMC8097092 DOI: 10.3389/fcvm.2021.645786] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 03/15/2021] [Indexed: 02/02/2023] Open
Abstract
Background: While oxylipins have been linked to coronary artery disease (CAD), little is known about their diagnostic and prognostic potential. Objective: We tested whether plasma concentration of specific oxylipins may discriminate among number of diseased coronary arteries and predict median 5-year outcomes in symptomatic adults. Methods: Using a combination of high-performance liquid chromatography (HPLC) and quantitative tandem mass spectrometry, we conducted a targeted analysis of 39 oxylipins in plasma samples of 23 asymptomatic adults with low CAD risk and 74 symptomatic adults (≥70% stenosis), aged 38–87 from the Greater Portland, Oregon area. Concentrations of 22 oxylipins were above the lower limit of quantification in >98% of adults and were compared, individually and in groups based on precursors and biosynthetic pathways, in symptomatic adults to number of diseased coronary arteries [(1) n = 31; (2) n = 23; (3) n = 20], and outcomes during a median 5-year follow-up (no surgery: n = 7; coronary stent placement: n = 24; coronary artery bypass graft surgery: n = 26; death: n = 7). Results: Plasma levels of six quantified oxylipins decreased with the number of diseased arteries; a panel of five oxylipins diagnosed three diseased arteries with 100% sensitivity and 70% specificity. Concentrations of five oxylipins were lower and one oxylipin was higher with survival; a panel of two oxylipins predicted survival during follow-up with 86% sensitivity and 91% specificity. Conclusions: Quantification of plasma oxylipins may assist in CAD diagnosis and prognosis in combination with standard risk assessment tools.
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Affiliation(s)
- D Elizabeth Le
- Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR, United States
| | - Manuel García-Jaramillo
- Nutrition Program, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, United States.,Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Helfgott Research Institute, National University of Natural Medicine, Portland, OR, United States
| | - Gerd Bobe
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Animal and Rangeland Sciences, Oregon State University, Corvallis, OR, United States
| | - Armando Alcazar Magana
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Ashish Vaswani
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Jessica Minnier
- Department of Biostatistics and Knight Cancer Institute, Oregon Health and Science University, Portland, OR, United States
| | - Donald B Jump
- Nutrition Program, School of Biological and Population Health Sciences, Oregon State University, Corvallis, OR, United States.,Linus Pauling Institute, Oregon State University, Corvallis, OR, United States
| | - Diana Rinkevich
- Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR, United States
| | - Nabil J Alkayed
- Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR, United States.,Department of Anesthesiology and Perioperative Medicine, Oregon Health and Science University, Portland, OR, United States
| | - Claudia S Maier
- Linus Pauling Institute, Oregon State University, Corvallis, OR, United States.,Department of Chemistry, Oregon State University, Corvallis, OR, United States
| | - Sanjiv Kaul
- Knight Cardiovascular Institute, Oregon Health and Science University, Portland, OR, United States
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Pauls SD, Du Y, Clair L, Winter T, Aukema HM, Taylor CG, Zahradka P. Impact of Age, Menopause, and Obesity on Oxylipins Linked to Vascular Health. Arterioscler Thromb Vasc Biol 2021; 41:883-897. [DOI: 10.1161/atvbaha.120.315133] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Objective:
Cardiovascular disease, a major cause of mortality and morbidity, exhibits sexual dimorphism since the onset of cardiovascular disease occurs later in women than in men. The loss of cardioprotection in older women may be due to an increase in arterial stiffness after menopause. Free fatty acid metabolites of polyunsaturated fatty acids, called oxylipins, are known to impact vessel function and may be responsible for the vascular benefits of polyunsaturated fatty acids. The objectives of this study were to compare the plasma oxylipin profiles of young females (20–55 years), older females (55
+
), and older males (55
+
) and to identify associations between oxylipins and cardiovascular disease risk factors, such as obesity and arterial stiffness.
Approach and Results:
We quantified plasma oxylipins by high-performance liquid chromatography–tandem mass spectrometry in archived samples taken from completed clinical trials. We identified 3 major 12-lipoxygenase products, 12-hydroxy-eicosatetraenoic acid, 12-hydroxy-eicosapentaenoic acid, and 14-hydroxy-docosahexaenoic acid, that are present at high levels in young females compared with older females and males. These oxylipins also decreased with obesity and displayed robust negative associations with arterial stiffness as assessed by brachial-ankle pulse wave velocity. According to multiple linear regression modeling, these associations were maintained even after correcting for body mass index category combined with either age, menopausal status, or estradiol levels. Using linear discriminant analysis, the combination of these 3 oxylipins effectively distinguished participants according to both brachial-ankle pulse wave velocity risk group and age.
Conclusions:
Higher 12-lipoxygenase oxylipin plasma concentrations associated with lower arterial stiffness in premenopausal females may be an important contributing factor to sex differences in cardiovascular disease.
Registration:
URL:
https://www.clinicaltrials.gov
; Unique identifiers: NCT01661543, NCT01562171, NCT01890330, NCT02571114 and NCT02317588.
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Affiliation(s)
- Samantha D. Pauls
- Department of Food and Human Nutritional Sciences (S.D.P., T.W., H.M.A., C.G.T., P.Z.), University of Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Canada (S.D.P., Y.D., L.C., T.W., H.M.A., C.G.T., P.Z.)
| | - Youjia Du
- Department of Physiology and Pathophysiology (Y.D., C.G.T., P.Z.), University of Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Canada (S.D.P., Y.D., L.C., T.W., H.M.A., C.G.T., P.Z.)
| | - Luc Clair
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Canada (S.D.P., Y.D., L.C., T.W., H.M.A., C.G.T., P.Z.)
- Department of Economics, University of Winnipeg, Canada (L.C.)
| | - Tanja Winter
- Department of Food and Human Nutritional Sciences (S.D.P., T.W., H.M.A., C.G.T., P.Z.), University of Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Canada (S.D.P., Y.D., L.C., T.W., H.M.A., C.G.T., P.Z.)
| | - Harold M. Aukema
- Department of Food and Human Nutritional Sciences (S.D.P., T.W., H.M.A., C.G.T., P.Z.), University of Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Canada (S.D.P., Y.D., L.C., T.W., H.M.A., C.G.T., P.Z.)
| | - Carla G. Taylor
- Department of Food and Human Nutritional Sciences (S.D.P., T.W., H.M.A., C.G.T., P.Z.), University of Manitoba, Canada
- Department of Physiology and Pathophysiology (Y.D., C.G.T., P.Z.), University of Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Canada (S.D.P., Y.D., L.C., T.W., H.M.A., C.G.T., P.Z.)
| | - Peter Zahradka
- Department of Food and Human Nutritional Sciences (S.D.P., T.W., H.M.A., C.G.T., P.Z.), University of Manitoba, Canada
- Department of Physiology and Pathophysiology (Y.D., C.G.T., P.Z.), University of Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, Winnipeg, Canada (S.D.P., Y.D., L.C., T.W., H.M.A., C.G.T., P.Z.)
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7
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Whitton C, Neelakantan N, Ong CN, van Dam RM. Reproducibility of Dietary Biomarkers in a Multiethnic Asian Population. Mol Nutr Food Res 2019; 63:e1801104. [PMID: 30817094 DOI: 10.1002/mnfr.201801104] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2018] [Revised: 12/02/2018] [Indexed: 01/04/2023]
Abstract
SCOPE Dietary biomarkers allow for study of diet and disease risk relationships, but a key requirement is that these biomarkers are reproducible and reflect long-term diet. This study assesses reproducibility of selected dietary biomarkers in a multi-ethnic Asian population, and quantifies diet-disease relationship attenuation arising from use of a single biomarker measurement. METHODS AND RESULTS Intra-class correlation coefficients (ICC) are used to evaluate the reproducibility of urinary isoflavone and enterolignan, total plasma fatty acid (FA), and serum carotenoid concentrations measured 4 months apart in adult Singapore residents (ethnic Chinese, n 59; Malay, n 46; Indian, n 56). Total carotenoid ICC is 0.75 (95% confidence interval (CI) 0.68, 0.81), ranging from 0.63 to 0.84 for individual carotenoids. FA ICC (median) is 0.74 (inter-quartile range 0.70-0.78). Total isoflavone ICC (95% CI) is 0.21 (0.06-0.35). Total enterolignan ICC is 0.42 (0.28, 0.54). Attenuation factors associated with a single time point measure ranged from 0.74 to 0.94 for carotenoids and FAs, and 0.42 to 0.70 for isoflavones and enterolignans. CONCLUSIONS In a multi-ethnic Asian population, single measures of most serum carotenoids and plasma FAs likely represent habitual diet, whereas reproducibility of urinary isoflavones and enterolignans is moderate, possibly due to rapid excretion.
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Affiliation(s)
- Clare Whitton
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 117549
| | - Nithya Neelakantan
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 117549
| | - Choon Nam Ong
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 117549
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore, 117549.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore, 117597.,Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA, 02115, USA
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Abstract
PURPOSE Lipid mediators of inflammation are a group of signaling molecules produced by various cells under physiological conditions and modulate the inflammatory process during various pathologic conditions. Although eicosanoids and F2-isoprostanes are recognized lipid mediators of inflammation, there is no consensus yet on the extraction and mass spectrometry (MS) method for their analysis in individual human tear samples. Thus, the aim of this study was to develop an optimal method for extraction of lipid mediators of inflammation in the tear film and evaluate MS techniques for their analysis. METHODS Basal tears were collected from each eye of 19 subjects using glass microcapillaries. Lipid extraction was performed using either varying concentrations of acidified methanol, a modified Folch method, or solid-phase extraction. Initially, an untargeted analysis of the extracts was performed using SCIEX TripleTOF 5600 mass spectrometer to identify any lipid mediators of inflammation (eicosanoids) and later a targeted analysis was performed using the SCIEX 6500 Qtrap to identify and quantify prostaglandins and isoprostanes. Mass spectra and chromatograms were analyzed using Peakview, XCMS, and Multiquant software. RESULTS Prostaglandins and isoprostanes were observed and quantified using the Qtrap mass spectrometer under multiple reaction monitoring (MRM) mode after solid-phase extraction. Extraction with acidified methanol along with the Folch method produced cleaner spectra during MS with the Triple time of flight (TOF) mass spectrometer. Lipid mediators of inflammation were not observed in any of the tear samples using the Triple TOF mass spectrometer. CONCLUSIONS Solid-phase extraction may be the method of choice for extraction of prostaglandins and isoprostanes in low volumes of tears. The SCIEX Qtrap 6500 in MRM mode may be suitable to identify and quantify similar lipid mediators of inflammation.
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9
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Relative validity and reproducibility of dietary quality scores from a short diet screener in a multi-ethnic Asian population. Public Health Nutr 2018; 21:2735-2743. [DOI: 10.1017/s1368980018001830] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractObjectiveShort screeners for assessing dietary quality are lacking in Asia. We recently developed a short thirty-seven-item diet screener (DS). The present study aimed to evaluate reproducibility and relative validity of the DS in assessing a priori dietary quality indices (DQI; i.e. the Alternative Healthy Eating Index-2010 (AHEI-2010), alternate Mediterranean Diet (aMed) and Dietary Approaches to Stop Hypertension (DASH) diet) and intakes of selected foods.DesignDS administration and biomarker measurement took place twice within a 4-month interval. A 163-item FFQ was administered one month after the second DS administration.SettingSingapore, a multi-ethnic urban Asian country.SubjectsSingapore residents (n 161) aged 18–79 years, of Chinese, Malay and Indian ethnicity.ResultsReproducibility coefficients for the two DS were 0·71 (DQI) and 0·65 (food groups). Correlations (ρ) between mean DS and FFQ DQI scores were 0·51 (AHEI-2010), 0·50 (aMed) and 0·61 (DASH; all P<0·05). Cohen’s weighted kappa indicated moderate agreement between the two measures (κw=0·48–0·58). DS DQI scores were associated with concentrations of β-cryptoxanthin (AHEI-2010, ρ=0·26; P<0·05), odd-chain SFA (aMed, ρ=0·24; DASH, ρ=0·25; both P<0·05), and enterolactone, total carotenoids, PUFA and α-linolenic acid (all scores, ρ=0·17–0·30; all P<0·05). Scores were not associated with isoflavone or long-chain n-3 PUFA concentrations.ConclusionsA short screener can be used to assess DQI with good reproducibility and relative validity compared with a longer FFQ in an Asian population.
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10
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Podolskaya EP, Serebryakova MV, Krasnov KA, Grachev SA, Gzgzyan AM, Sukhodolov NG. Application of Langmuir–Blodgett technology for the analysis of saturated fatty acids using the MALDI-TOF mass spectrometry. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.05.037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Li Y, Lin N, Xu J, Lu Y, Chen S, Pan C, Wang C, Xu M, Zhou B, Xu R, Xu YJ. Measurement of Serum and Hepatic Eicosanoids by Liquid Chromatography Tandem-Mass Spectrometry (LC-MS/MS) in a Mouse Model of Hepatocellular Carcinoma (HCC) with Delivery of c-Met and Activated β-Catenin by Hepatocyte Hydrodynamic Injection. Med Sci Monit 2018; 24:1670-1679. [PMID: 29560932 PMCID: PMC5877205 DOI: 10.12659/msm.908931] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 03/05/2018] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Most forms of cancer, including hepatocellular carcinoma (HCC), are associated with varying degrees of chronic inflammation. The association between the expression of eicosanoids, which are bioactive lipid mediators of inflammation, and HCC remains unknown. The aim of this study was to measure serum and hepatic eicosanoids in a mouse model of HCC with the delivery of c-Met and activated b-catenin by hepatocyte hydrodynamic injection. MATERIAL AND METHODS The HCC mouse model, and normal control mice, were used in this study with co-delivery of human c-Met combined with activated β-catenin into hepatocytes through hydrodynamic injection. Liquid chromatography tandem-mass spectrometry (LC-MS/MS) analysis was used to measure serum and hepatic eicosanoid levels. RESULTS The combined activation of c-Met and β-catenin was induced in the HCC mouse model. LC-MS/MS showed that a total of 13 eicosanoids in serum and 12 eicosanoids in liver tissue were significantly increased in the HCC mice, when compared with control mice. CONCLUSIONS In a mouse model of HCC, co-activation of the c-Met and β-catenin signaling pathway resulted in increased levels of serum and hepatic eicosanoids.
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Affiliation(s)
- Yanjie Li
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Nan Lin
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Jianliang Xu
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Yi Lu
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Shuxian Chen
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Chuzhi Pan
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Chusi Wang
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Mingxing Xu
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Boxuan Zhou
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Ruiyun Xu
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Yong-Jiang Xu
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, P.R. China
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12
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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.
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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
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13
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Whitton C, Ho JCY, Tay Z, Rebello SA, Lu Y, Ong CN, van Dam RM. Relative Validity and Reproducibility of a Food Frequency Questionnaire for Assessing Dietary Intakes in a Multi-Ethnic Asian Population Using 24-h Dietary Recalls and Biomarkers. Nutrients 2017; 9:nu9101059. [PMID: 28946670 PMCID: PMC5691676 DOI: 10.3390/nu9101059] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Revised: 09/15/2017] [Accepted: 09/19/2017] [Indexed: 11/29/2022] Open
Abstract
The assessment of diets in multi-ethnic cosmopolitan settings is challenging. A semi-quantitative 163-item food frequency questionnaire (FFQ) was developed for the adult Singapore population, and this study aimed to assess its reproducibility and relative validity against 24-h dietary recalls (24 h DR) and biomarkers. The FFQ was administered twice within a six-month interval in 161 adults (59 Chinese, 46 Malay, and 56 Indian). Fasting plasma, overnight urine, and 24 h DR were collected after one month and five months. Intra-class correlation coefficients between the two FFQ were above 0.70 for most foods and nutrients. The median correlation coefficient between energy-adjusted deattenuated FFQ and 24 h DR nutrient intakes was 0.40 for FFQ1 and 0.39 for FFQ2, highest for calcium and iron, and lowest for energy and carbohydrates. Significant associations were observed between urinary isoflavones and soy protein intake (r = 0.46), serum carotenoids and fruit and vegetable intake (r = 0.34), plasma eicosapentaenoic acid and docosahexaenoic acid (EPA + DHA) and fish/seafood intake (r = 0.36), and plasma odd chain saturated fatty acids (SFA) and dairy fat intake (r = 0.25). Associations between plasma EPA + DHA and fish/seafood intake were consistent across ethnic groups (r = 0.28–0.49), while differences were observed for other associations. FFQ assessment of dietary intakes in modern cosmopolitan populations remains feasible for the purpose of ranking individuals’ dietary exposures in epidemiological studies.
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Affiliation(s)
- Clare Whitton
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
| | - Jolene Chien Yee Ho
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
| | - Zoey Tay
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
| | - Salome A Rebello
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
| | - Yonghai Lu
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
| | - Choon Nam Ong
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, National University of Singapore and National University Health System, Singapore 117549, Singapore.
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore 119228, Singapore.
- Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA.
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14
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Gong ZG, Liu J, Yin GC, Xu YJ. Serum eicosanoid analysis in Chinese pediatric patients with asthma. Pediatr Allergy Immunol 2017; 28:485-487. [PMID: 28378348 DOI: 10.1111/pai.12722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhi-Gang Gong
- Key Lab of Training, Monitoring and Intervention of Aquatic Sports of General Administration of Sport of China, Faculty of Physical Education, Jiangxi Normal University, Nanchang, China
| | - Jin Liu
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.,Shanghai Pudong Women and Children Hospital, Shanghai, China
| | - Guo-Chang Yin
- Key Lab of Training, Monitoring and Intervention of Aquatic Sports of General Administration of Sport of China, Faculty of Physical Education, Jiangxi Normal University, Nanchang, China
| | - Yong-Jiang Xu
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China.,Department of Medicine, University of California San Diego, La Jolla, California, United States
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15
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Meat and Seafood Consumption in Relation to Plasma Metabolic Profiles in a Chinese Population: A Combined Untargeted and Targeted Metabolomics Study. Nutrients 2017; 9:nu9070683. [PMID: 28665358 PMCID: PMC5537798 DOI: 10.3390/nu9070683] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 06/21/2017] [Accepted: 06/27/2017] [Indexed: 12/23/2022] Open
Abstract
We examined the relationship between different patterns of meat and seafood consumption and plasma metabolic profiles in an Asian population. We selected 270 ethnic Chinese men and women from the Singapore Prospective Study Program based on their dietary habits assessed with a validated food frequency questionnaire. Participants were divided into four subgroups: high meat and high seafood (n = 60), high meat and low seafood (n = 64), low meat and high seafood (n = 60), and low meat and low seafood (n = 86) consumers. Plasma metabolites were measured using both targeted and untargeted mass spectroscopy-based analyses. A total of 42 metabolites differed significantly by dietary group. Higher concentrations of essential amino acids, polyunsaturated fatty acids, and d-glucose were found in high meat and/or seafood consumers as compared with the group with a low consumption of these animal foods. Red meat, poultry, fish, shellfish, soy products, and dairy were each correlated with at least one differential metabolite (r = −0.308 to 0.448). Some observations, such as the correlation between fish and 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF), confirmed previous studies. Other observations, such as the correlation between shellfish and phosphatidylethanolamine (p36:4), were novel. We also observed significant correlations between plasma metabolites and clinical characteristics, such as CMPF with fasting blood glucose (r = 0.401). These findings demonstrate a significant influence of meat and seafood consumption on metabolic profiles in the Asian population.
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16
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Liu Y, Su J, van Dam RM, Prem K, Hoong JYS, Zou L, Lu Y, Ong CN. Dietary predictors and plasma concentrations of perfluorinated alkyl acids in a Singapore population. CHEMOSPHERE 2017; 171:617-624. [PMID: 28056448 DOI: 10.1016/j.chemosphere.2016.12.107] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 12/18/2016] [Accepted: 12/21/2016] [Indexed: 05/14/2023]
Abstract
Perfluorinated alkyl acids (PFAAs), a family of man-made organofluorinated compounds, have drawn much attention due to their ubiquitous existence in the environment and their bioaccumulation potential. Here, we examined the plasma concentrations of thirteen PFAAs in a healthy population (N = 270) in Singapore, and investigated the association between major food groups and plasma PFAA concentrations. We detected eight types of PFAAs in more than 75% of all samples (N = 270), and their median concentrations ranged from 0.05 to 8.34 ng mL-1. Age- and gender-related differences were observed for the three dominant PFAAs, i.e., perfluorooctanesulfonic acid (PFOS), perfluorohexane sulfonate (PFHxS) and perfluorooctanoate acid (PFOA), with concentrations being higher in men and older adults. Multiple linear regression analyses showed that fish, shellfish, red meat and poultry were associated with increased PFAAs concentrations in plasma, whereas grains and soy products showed inverse associations with PFAAs. Further, significant correlations were observed between various long-chain PFAAs and plasma concentrations of omega-3 fatty acids, suggesting seafood was a significant source of these PFAAs, within this population. Future studies on diet exposure to PFAAs are encouraged to focus more on the effects on diet pattern.
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Affiliation(s)
- Yu Liu
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore
| | - Jin Su
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University Health System, 1E Kent Ridge Road, 119228, Singapore
| | - Kiesha Prem
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore
| | - Joey Y S Hoong
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore
| | - Li Zou
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore
| | - Yonghai Lu
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore
| | - Choon Nam Ong
- Saw Swee Hock School of Public Health, National University of Singapore, Tahir Foundation Building, 12 Science Drive, 117549, Singapore; NUS Environmental Research Institute, National University of Singapore, 5A Engineering Drive 1, 117411, Singapore.
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17
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Moon SH, Mancuso DJ, Sims HF, Liu X, Nguyen AL, Yang K, Guan S, Dilthey BG, Jenkins CM, Weinheimer CJ, Kovacs A, Abendschein D, Gross RW. Cardiac Myocyte-specific Knock-out of Calcium-independent Phospholipase A2γ (iPLA2γ) Decreases Oxidized Fatty Acids during Ischemia/Reperfusion and Reduces Infarct Size. J Biol Chem 2016; 291:19687-700. [PMID: 27453526 DOI: 10.1074/jbc.m116.740597] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Indexed: 12/21/2022] Open
Abstract
Calcium-independent phospholipase A2γ (iPLA2γ) is a mitochondrial enzyme that produces lipid second messengers that facilitate opening of the mitochondrial permeability transition pore (mPTP) and contribute to the production of oxidized fatty acids in myocardium. To specifically identify the roles of iPLA2γ in cardiac myocytes, we generated cardiac myocyte-specific iPLA2γ knock-out (CMiPLA2γKO) mice by removing the exon encoding the active site serine (Ser-477). Hearts of CMiPLA2γKO mice exhibited normal hemodynamic function, glycerophospholipid molecular species composition, and normal rates of mitochondrial respiration and ATP production. In contrast, CMiPLA2γKO mice demonstrated attenuated Ca(2+)-induced mPTP opening that could be rapidly restored by the addition of palmitate and substantially reduced production of oxidized polyunsaturated fatty acids (PUFAs). Furthermore, myocardial ischemia/reperfusion (I/R) in CMiPLA2γKO mice (30 min of ischemia followed by 30 min of reperfusion in vivo) dramatically decreased oxidized fatty acid production in the ischemic border zones. Moreover, CMiPLA2γKO mice subjected to 30 min of ischemia followed by 24 h of reperfusion in vivo developed substantially less cardiac necrosis in the area-at-risk in comparison with their WT littermates. Furthermore, we found that membrane depolarization in murine heart mitochondria was sensitized to Ca(2+) by the presence of oxidized PUFAs. Because mitochondrial membrane depolarization and calcium are known to activate iPLA2γ, these results are consistent with salvage of myocardium after I/R by iPLA2γ loss of function through decreasing mPTP opening, diminishing production of proinflammatory oxidized fatty acids, and attenuating the deleterious effects of abrupt increases in calcium ion on membrane potential during reperfusion.
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Affiliation(s)
- Sung Ho Moon
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - David J Mancuso
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - Harold F Sims
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - Xinping Liu
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - Annie L Nguyen
- Center for Cardiovascular Research, Washington University School of Medicine, Saint Louis, Missouri 63110 and
| | - Kui Yang
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - Shaoping Guan
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - Beverly Gibson Dilthey
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - Christopher M Jenkins
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine
| | - Carla J Weinheimer
- Center for Cardiovascular Research, Washington University School of Medicine, Saint Louis, Missouri 63110 and
| | - Attila Kovacs
- Center for Cardiovascular Research, Washington University School of Medicine, Saint Louis, Missouri 63110 and
| | - Dana Abendschein
- Center for Cardiovascular Research, Washington University School of Medicine, Saint Louis, Missouri 63110 and
| | - Richard W Gross
- From the Division of Bioorganic Chemistry and Molecular Pharmacology, Departments of Medicine, Center for Cardiovascular Research, Washington University School of Medicine, Saint Louis, Missouri 63110 and Developmental Biology, and the Department of Chemistry, Washington University, Saint Louis, Missouri 63130
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18
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Sun Y, Koh HWL, Choi H, Koh WP, Yuan JM, Newman JW, Su J, Fang J, Ong CN, van Dam RM. Plasma fatty acids, oxylipins, and risk of myocardial infarction: the Singapore Chinese Health Study. J Lipid Res 2016; 57:1300-7. [PMID: 27371261 DOI: 10.1194/jlr.p066423] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Indexed: 11/20/2022] Open
Abstract
We aimed to examine the prospective association between plasma FAs, oxylipins, and risk of acute myocardial infarction (AMI) in a Singapore Chinese population. A nested case-control study with 744 incident AMI cases and 744 matched controls aged 47-83 years was conducted within the Singapore Chinese Health Study. Nineteen plasma FAs and 12 oxylipins were quantified using MS. These were grouped into 12 FA clusters and 5 oxylipin clusters using hierarchical clustering, and their associations with AMI risk were assessed. Long-chain n-3 FAs [odds ratio (OR) = 0.67 per SD increase, 95% confidence interval (CI): 0.53-0.84, P < 0.001] and stearic acid (OR = 0.65, 95% CI: 0.44-0.97, P = 0.03) were inversely associated with AMI risk, whereas arachidonic acid (AA) was positively associated with AMI risk (OR = 1.25, 95% CI: 1.03-1.52, P = 0.02) in the multivariable model with adjustment for other FAs. Further adjustment for oxylipins did not substantially change these associations. An inverse association was observed between AA-derived oxylipin, thromboxane (TX)B2, and AMI risk (OR = 0.81, 95% CI: 0.71-0.93, P = 0.003). Circulating long-chain n-3 FAs and stearic acid were associated with a lower and AA was associated with a higher AMI risk in this Chinese population. The association between the oxylipin TXB2 and AMI requires further research.
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Affiliation(s)
- Ye Sun
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore Departments of Psychological Medicine National University of Singapore and National University Health System, Singapore
| | - Hiromi W L Koh
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore
| | - Hyungwon Choi
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore Duke-NUS Graduate Medical School Singapore, Singapore
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute and Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh PA
| | - John W Newman
- Department of Nutrition, University of California Davis and US Department of Agriculture, Agricultural Research Sservice, Western Human Nutrition Research Center, Davis CA
| | - Jin Su
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore
| | - Jinling Fang
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore
| | - Choon Nam Ong
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore National University of Singapore Environmental Research Institute, National University of Singapore, Singapore
| | - Rob M van Dam
- Saw Swee Hock School of Public Health National University of Singapore and National University Health System, Singapore Medicine, Yong Loo Lin School of Medicine, National University of Singapore and National University Health System, Singapore Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, MA
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19
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Sun Y, Koh WP, Yuan JM, Choi H, Su J, Ong CN, van Dam RM. Plasma α-Linolenic and Long-Chain ω-3 Fatty Acids Are Associated with a Lower Risk of Acute Myocardial Infarction in Singapore Chinese Adults. J Nutr 2016; 146:275-82. [PMID: 26609174 PMCID: PMC4725432 DOI: 10.3945/jn.115.220418] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/02/2015] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Long-chain marine omega-3 polyunsaturated fatty acids (n-3 PUFAs) are associated with a lower risk of acute myocardial infarction (AMI), but results for plant-derived α-linolenic acid (ALA; 18:3n-3) are inconsistent. OBJECTIVE We aimed to examine the association between plasma n-3 PUFAs and AMI risk and to explore potential mediation by cardiovascular disease risk factors. METHODS A nested case-control study with 744 incident AMI cases and 744 matched controls was conducted within the Singapore Chinese Health Study for participants aged 47-83 y. Conditional logistic regression was used to calculate the multivariable ORs for AMI with and without adjustment for cardiovascular disease risk factors, including blood lipids, blood pressure, C-reactive protein, serum creatinine, and glycated hemoglobin. RESULTS Plasma long-chain n-3 PUFAs were associated with lower AMI risk (multivariable OR: 0.62; 95% CI: 0.41, 0.94; for the highest compared with the lowest quartile; P-trend = 0.03). This association was not substantially changed after adjustment for cardiovascular disease risk factors. Dietary intakes of fish and long-chain n-3 PUFAs were similarly inversely associated with AMI risk. Plasma ALA was marginally associated with a lower risk of AMI (multivariable OR: 0.73; 95% CI: 0.51, 1.05; P-trend = 0.07) even in persons with high plasma concentrations of long-chain n-3 PUFAs. This association became significantly weaker after adjustment for blood pressure and LDL cholesterol. CONCLUSIONS Plasma long-chain n-3 PUFAs are associated with a lower risk of AMI in this Asian population. Plasma ALA may be marginally associated with reduced AMI risk, even in persons with high concentrations of long-chain n-3 PUFAs, and this association may be partially mediated by lower blood pressure and LDL cholesterol.
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Affiliation(s)
- Ye Sun
- Saw Swee Hock School of Public Health, and,NUS Graduate School for Integrative Sciences and Engineering, and
| | - Woon-Puay Koh
- Saw Swee Hock School of Public Health, and,Duke-NUS Graduate Medical School Singapore, Singapore
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, University of Pittsburgh Cancer Institute, Pittsburgh, PA;,Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA; and
| | | | - Jin Su
- Saw Swee Hock School of Public Health, and
| | - Choon Nam Ong
- Saw Swee Hock School of Public Health, and,NUS Environmental Research Institute, National University of Singapore, Singapore
| | - Rob M van Dam
- Saw Swee Hock School of Public Health, and Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore (NUS) and National University Health System, Singapore; NUS Graduate School for Integrative Sciences and Engineering, and Department of Nutrition, Harvard School of Public Health, Boston, MA
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20
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Mohamad N, Ismet RI, Rofiee M, Bannur Z, Hennessy T, Selvaraj M, Ahmad A, Nor F, Abdul Rahman T, Md Isa K, Ismail A, Teh LK, Salleh MZ. Metabolomics and partial least square discriminant analysis to predict history of myocardial infarction of self-claimed healthy subjects: validity and feasibility for clinical practice. J Clin Bioinforma 2015; 5:3. [PMID: 25806102 PMCID: PMC4371619 DOI: 10.1186/s13336-015-0018-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 02/27/2015] [Indexed: 02/07/2023] Open
Abstract
Background The dynamics of metabolomics in establishing a prediction model using partial least square discriminant analysis have enabled better disease diagnosis; with emphasis on early detection of diseases. We attempted to translate the metabolomics model to predict the health status of the Orang Asli community whom we have little information. The metabolite expressions of the healthy vs. diseased patients (cardiovascular) were compared. A metabotype model was developed and validated using partial least square discriminant analysis (PLSDA). Cardiovascular risks of the Orang Asli were predicted and confirmed by biochemistry profiles conducted concurrently. Results Fourteen (14) metabolites were determined as potential biomarkers for cardiovascular risks with receiver operating characteristic of more than 0.7. They include 15S-HETE (AUC = 0.997) and phosphorylcholine (AUC = 0.995). Seven Orang Asli were clustered with the patients’ group and may have ongoing cardiovascular risks and problems. This is supported by biochemistry tests results that showed abnormalities in cholesterol, triglyceride, HDL and LDL levels. Conclusions The disease prediction model based on metabolites is a useful diagnostic alternative as compared to the current single biomarker assays. The former is believed to be more cost effective since a single sample run is able to provide a more comprehensive disease profile, whilst the latter require different types of sampling tubes and blood volumes. Electronic supplementary material The online version of this article (doi:10.1186/s13336-015-0018-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nornazliya Mohamad
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia
| | - Rose Iszati Ismet
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia
| | - MohdSalleh Rofiee
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia
| | - Zakaria Bannur
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia
| | - Thomas Hennessy
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia ; Life Sciences & Diagnostics Group, Translational Research Institute, Brisbane, Australia
| | - Manikandan Selvaraj
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia
| | - Aminuddin Ahmad
- Faculty of Medicine, Universiti Teknologi MARA (UiTM), Sungai Buloh, Selangor Malaysia
| | - FadzilahMohd Nor
- Faculty of Medicine, Universiti Teknologi MARA (UiTM), Sungai Buloh, Selangor Malaysia
| | | | - Kamarudzaman Md Isa
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia
| | - AdzroolIdzwan Ismail
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia
| | - Lay Kek Teh
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia ; Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Selangor 42300 Malaysia
| | - Mohd Zaki Salleh
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Puncak Alam Malaysia, Selangor 42300 Malaysia ; Faculty of Pharmacy, Universiti Teknologi MARA (UiTM), Bandar Puncak Alam, Selangor 42300 Malaysia
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Martin-Venegas R, Jáuregui O, Moreno JJ. Liquid chromatography-tandem mass spectrometry analysis of eicosanoids and related compounds in cell models. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 964:41-9. [PMID: 24932539 DOI: 10.1016/j.jchromb.2014.05.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 05/07/2014] [Accepted: 05/08/2014] [Indexed: 11/28/2022]
Abstract
Enzyme- and free radical-catalyzed oxidation of polyunsaturated fatty acids (PUFAs) produces the eicosanoids, docosanoids and octadecanoids. This large family of potent bioactive lipids is involved in many biochemical and signaling pathways which are implicated in physiological and pathophysiological processes and can be viable therapeutic targets. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) offers selectivity, sensitivity, robustness and high resolution and is able to analyze a large number of eicosanoids in biological samples in a short time. The present article reviews and discusses reported LC-MS/MS methods and the results obtained from their application in cell models. Reliable analytical outcomes are critically important for understanding physiological and pathophysiological cellular processes, such as inflammation, diseases with inflammatory components (e.g., cardiovascular disease, diabetes, metabolic syndrome), as well as cancer. Reported findings obtained by using the LC-MS/MS methodology in cell systems may have important predictive as well as nutritional and pharmacological implications. We conclude that the LC-MS/MS methodology is a versatile and reliable analytical tool for the simultaneous analysis of multiple PUFA-derived metabolites including the eicosanoids in cell culture samples at concentrations on the pM/nM threshold, i.e. at baseline and after stimulation.
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Affiliation(s)
- Raquel Martin-Venegas
- Departament de Fisiologia, Facultat de Farmacia, Universitat de Barcelona, 08028-Barcelona, Spain
| | - Olga Jáuregui
- Centres Cientifics i Tecnologics (CCiTUB), Universitat de Barcelona, 08028-Barcelona, Spain
| | - Juan Jose Moreno
- Departament de Fisiologia, Facultat de Farmacia, Universitat de Barcelona, 08028-Barcelona, Spain.
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