1
|
Shi J, Wang W, Sang G, Xi H, Sun Y, Lu C, Ye H, Huang L. Short Term Usage of Omega-3 Polyunsaturated Fatty Acids Ameliorate Lipopolysaccharide-Induced Inflammatory Response and Oxidative Stress in the Neonatal Rat Hippocampal Tissue. Front Nutr 2020; 7:572363. [PMID: 33282898 PMCID: PMC7705230 DOI: 10.3389/fnut.2020.572363] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 10/12/2020] [Indexed: 12/17/2022] Open
Abstract
Objective: To investigate the effect of omega-3 polyunsaturated fatty acids (ω-3 PUFAs) on lipopolysaccharide (LPS)-induced inflammatory response and oxidative stress in neonatal rat brain. Methods: Ninety-six 3-day-old Sprague Dawley rats were divided into four groups: control (saline/saline), LPS/ω-3, LPS/ω-6, and LPS/saline (n = 24/group). All rats, except those in the control group, were intraperitoneally challenged once with LPS (0.6 mg/kg) and were treated with ω-3 PUFAs, ω-6 PUFAs, or saline at 15 mL/kg for 1 or 5 consecutive days beginning on the day of LPS-challenge. Rats in the control group underwent the same procedures and received saline (vehicle). After 1 or 5 days of treatment, 12 rats from each group were sacrificed and their hippocampuses were collected. The expression of inflammation-related genes as well as the levels of oxidative stress markers in hippocampal tissues were determined. Results: After 1 or 5 days of treatment, the expression of toll-like receptor 4 and multiple proinflammatory cytokines were significantly decreased in the LPS/ω-3 group compared with those in the LPS/saline group. The activities of superoxide dismutase and glutathione (GSH) were significantly elevated, whereas amounts of malondialdehyde and oxidized glutathione (GSSG) and the ratio of GSSG/GSH were remarkably lowered in the LPS/ω-3 group compared with those in the LPS/saline group after 1 day of treatment. Opposite effects were observed in the LPS/ω-6 group. Conclusion: ω-3 PUFAs may protect rat brain tissue against LPS-induced inflammatory response and oxidative stress.
Collapse
Affiliation(s)
- Jipeng Shi
- Henan Key Laboratory of Neurorestoratology, Department of Neonatology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - Weiwei Wang
- Henan Key Laboratory of Neurorestoratology, Department of Neonatology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - Guimei Sang
- Henan Key Laboratory of Neurorestoratology, Department of Neonatology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - Huifang Xi
- Henan Key Laboratory of Neurorestoratology, Department of Neonatology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - Yazhou Sun
- Henan Key Laboratory of Neurorestoratology, Department of Neonatology, The First Affiliated Hospital of Xinxiang Medical University, Weihui, China
| | - Chaosheng Lu
- The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, Wenzhou, China
| | - Hezhen Ye
- The Second Affiliated Hospital of Wenzhou Medical University, Zhejiang, Wenzhou, China
| | - Limi Huang
- The First Affiliated Hospital of Wenzhou Medical University, Zhejiang, Wenzhou, China
| |
Collapse
|
2
|
Riccardi DMDR, das Neves RX, de Matos-Neto EM, Camargo RG, Lima JDCC, Radloff K, Alves MJ, Costa RGF, Tokeshi F, Otoch JP, Maximiano LF, de Alcantara PSM, Colquhoun A, Laviano A, Seelaender M. Plasma Lipid Profile and Systemic Inflammation in Patients With Cancer Cachexia. Front Nutr 2020; 7:4. [PMID: 32083092 PMCID: PMC7005065 DOI: 10.3389/fnut.2020.00004] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Accepted: 01/10/2020] [Indexed: 12/11/2022] Open
Abstract
Cancer cachexia affects about 80% of advanced cancer patients, it is linked to poor prognosis and to date, there is no efficient treatment or cure. The syndrome leads to progressive involuntary loss of muscle and fat mass induced by systemic inflammatory processes. The role of the white adipose tissue (WAT) in the onset and manifestation of cancer cachexia gained importance during the last decade. WAT wasting is not only characterized by increased lipolysis and release of free fatty acids (FFA), but in addition, owing to its high capacity to produce a variety of inflammatory factors. The aim of this study was to characterize plasma lipid profile of cachectic patients and to correlate the FA composition with circulating inflammatory markers; finally, we sought to establish whether the fatty acids released by adipocytes trigger and/or contribute to local and systemic inflammation in cachexia. The study selected 65 patients further divided into 3 groups: control (N); weight stable cancer (WSC); and cachectic cancer (CC). The plasma FA profile was significantly different among the groups and was positively correlated with pro-inflammatory cytokines expression in the CC patients. Therefore, we propose that saturated to unsaturated FFA ratio may serve as a means of detecting cachexia.
Collapse
Affiliation(s)
| | - Rodrigo Xavier das Neves
- Laboratory of Integrative Cancer Immunology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD, United States
| | - Emidio Marques de Matos-Neto
- Cancer Metabolism Research Group, Institute of Biomedical Sciences University of São Paulo, São Paulo, Brazil.,Department of Physical Education, Federal University of Piaui, Teresina, Brazil
| | - Rodolfo Gonzalez Camargo
- Cancer Metabolism Research Group, Institute of Biomedical Sciences University of São Paulo, São Paulo, Brazil
| | | | - Katrin Radloff
- Cancer Metabolism Research Group, Institute of Biomedical Sciences University of São Paulo, São Paulo, Brazil
| | - Michele Joana Alves
- Cancer Metabolism Research Group, Institute of Biomedical Sciences University of São Paulo, São Paulo, Brazil
| | | | - Flávio Tokeshi
- University Hospital of the University of São Paulo, São Paulo, Brazil
| | - José Pinhata Otoch
- University Hospital of the University of São Paulo, São Paulo, Brazil.,University of São Paulo Medical School (FMUSP), São Paulo, Brazil
| | - Linda Ferreira Maximiano
- University Hospital of the University of São Paulo, São Paulo, Brazil.,University of São Paulo Medical School (FMUSP), São Paulo, Brazil
| | | | - Alison Colquhoun
- Department of Cell and Developmental Biology, Institute of Biomedical Sciences University of São Paulo, São Paulo, Brazil
| | - Alessandro Laviano
- Department of Clinical Medicine, Sapienza University of Rome, Rome, Italy
| | - Marilia Seelaender
- Cancer Metabolism Research Group, Institute of Biomedical Sciences University of São Paulo, São Paulo, Brazil.,University of São Paulo Medical School (FMUSP), São Paulo, Brazil
| |
Collapse
|
3
|
Phitak T, Boonmaleerat K, Pothacharoen P, Pruksakorn D, Kongtawelert P. Leptin alone and in combination with interleukin-1-beta induced cartilage degradation potentially inhibited by EPA and DHA. Connect Tissue Res 2018; 59:316-331. [PMID: 28956662 DOI: 10.1080/03008207.2017.1385605] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Osteoarthritis (OA) is the most common form of arthritis. Obesity has been believed to be an important risk factor for OA development and the progression of not only load-bearing joints, but low-load-bearing joints as well. Increased leptin has been the focus of a link between obesity and OA. In this study, the effects of pathological (100ng/ml) or supra-pathological (10μg/ml) concentrations of leptin alone or in combination with IL1β on cartilage metabolisms were studied in porcine cartilage explant. The involved mechanisms were examined in human articular chondrocytes (HACs). Moreover, the protective effect of omega-3 polyunsaturated acids, eicosapentaenoic acid (EPA) or docosahexaenoic acid (DHA) was also investigated. Leptin (10μg/ml) alone or in combination with IL1β could induce cartilage destruction, although lower concentrations had no effect. Leptin activated NFκB, ERK, JNK and p38 in HACs, which led to the induction of MMP3, MMP13 and ADAMTS4 secretions. The combined effect could further induce those enzymes through the additive effect on activation of NFκB and JNK. Interestingly, both EPA and DHA could inhibit cartilage damage induced by leptin plus IL1β by reducing the activation of NFκB and JNK, which led to the decrease of ADAMTS4 secretion. Altogether, only a supra-pathological concentration of leptin alone or in combination with IL1β could induce cartilage destruction, whereas a pathological one could not. This effect could be inhibited by EPA and DHA. To gain greater understanding of the link between leptin and OA, the effect of different levels of leptin on several states of OA cartilage requires further investigation.
Collapse
Affiliation(s)
- Thanyaluck Phitak
- a Thailand Excellence Center for Tissue Engineering and Stem Cells, Faculty of Medicine , Chiang Mai University , Chiang Mai , Thailand
| | - Kanchanit Boonmaleerat
- a Thailand Excellence Center for Tissue Engineering and Stem Cells, Faculty of Medicine , Chiang Mai University , Chiang Mai , Thailand
| | - Peraphan Pothacharoen
- a Thailand Excellence Center for Tissue Engineering and Stem Cells, Faculty of Medicine , Chiang Mai University , Chiang Mai , Thailand
| | - Dumnoensun Pruksakorn
- b Musculoskeletal Research Laboratory, Department of Orthopedics, Faculty of Medicine , Chiang Mai University , Chiang Mai , Thailand
| | - Prachya Kongtawelert
- a Thailand Excellence Center for Tissue Engineering and Stem Cells, Faculty of Medicine , Chiang Mai University , Chiang Mai , Thailand
| |
Collapse
|
4
|
Wang T, Yang B, Ji R, Xu W, Mai K, Ai Q. Omega-3 polyunsaturated fatty acids alleviate hepatic steatosis-induced inflammation through Sirt1-mediated nuclear translocation of NF-κB p65 subunit in hepatocytes of large yellow croaker (Larmichthys crocea). FISH & SHELLFISH IMMUNOLOGY 2017; 71:76-82. [PMID: 28964862 DOI: 10.1016/j.fsi.2017.09.064] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/17/2017] [Accepted: 09/26/2017] [Indexed: 06/07/2023]
Abstract
Hepatic steatosis induced inflammation is becoming increasingly prevalent in farmed fish. This study was conducted to investigate the protective effects of omega-3 polyunsaturated fatty acids (ω-3 PUFAs) against hepatic steatosis-induced inflammation and its potential molecular mechanisms in hepatocyte of large yellow croaker (Larmichthys crocea). We found that the hepatic steatosis-induced inflammation was relieved by ω-3 PUFAs, meanwhile, the Sirt1 activity and transcript expression was increased by ω-3 PUFAs. The increased Sirt1 activity can decrease the hepatic steatosis-induced inflammation. The protective effects of ω-3 PUFAs against hepatic steatosis-induced inflammation was reversed by the treatment with Sirt1 inhibitor EX-527. The nuclear translocation of nuclear transcription factor kappa-B (NF-κB) p65 was significantly decreased after ω-3 PUFAs treatments compared to the palmitic acid stimulation group. The ω-3 PUFAs induced cytoplasm translocation of NF-κB p65 was reversed by EX-527. Together, ω-3 PUFAs alleviate hepatic steatosis-induced inflammation through Sirt1-mediated nuclear translocation of NF-κB p65 subunit in hepatocytes of large yellow croaker. The present study provides important insight into the mechanisms of the protective effects of ω-3 PUFAs, providing theory bases for alleviating the hepatic steatosis induced inflammation of farmed fish, thereby offering great benefits to the aquaculture industry and fish consumers.
Collapse
Affiliation(s)
- Tianjiao Wang
- The Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) and Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, People's Republic of China
| | - Bo Yang
- The Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) and Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, People's Republic of China
| | - Renlei Ji
- The Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) and Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, People's Republic of China
| | - Wei Xu
- The Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) and Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, People's Republic of China
| | - Kangsen Mai
- The Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) and Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, People's Republic of China
| | - Qinghui Ai
- The Key Laboratory of Aquaculture Nutrition and Feed (Ministry of Agriculture) and Key Laboratory of Mariculture (Ministry of Education), Ocean University of China, 5 Yushan Road, Qingdao, Shandong 266003, People's Republic of China.
| |
Collapse
|
5
|
Mastrangelo A, Martos-Moreno GÁ, García A, Barrios V, Rupérez FJ, Chowen JA, Barbas C, Argente J. Insulin resistance in prepubertal obese children correlates with sex-dependent early onset metabolomic alterations. Int J Obes (Lond) 2016; 40:1494-1502. [PMID: 27163744 PMCID: PMC5056960 DOI: 10.1038/ijo.2016.92] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Revised: 03/21/2016] [Accepted: 05/02/2016] [Indexed: 12/16/2022]
Abstract
Background: Insulin resistance (IR) is usually the first metabolic alteration diagnosed in obese children and the key risk factor for development of comorbidities. The factors determining whether or not IR develops as a result of excess body mass index (BMI) are still not completely understood. Objectives: This study aimed to elucidate the mechanisms underpinning the predisposition toward hyperinsulinemia-related complications in obese children by using a metabolomic strategy that allows a profound interpretation of metabolic profiles potentially affected by IR. Methods: Serum from 60 prepubertal obese children (30 girls/30 boys, 50% IR and 50% non-IR in each group, but with similar BMIs) were analyzed by using liquid chromatography–mass spectrometry, gas chromatography–mass spectrometry and capillary electrophoresis–mass spectrometry following an untargeted metabolomics approach. Validation was then performed on a group of 100 additional children with the same characteristics. Results: When obese children with and without IR were compared, 47 metabolites out of 818 compounds (P<0.05) obtained after data pre-processing were found to be significantly different. Bile acids exhibit the greatest changes (that is, approximately a 90% increase in IR). The majority of metabolites differing between groups were lysophospholipids (15) and amino acids (17), indicating inflammation and central carbon metabolism as the most altered processes in impaired insulin signaling. Multivariate analysis (OPLS-DA models) showed subtle differences between groups that were magnified when females were analyzed alone. Conclusions: Inflammation and central carbon metabolism, together with the contribution of the gut microbiota, are the most altered processes in obese children with impaired insulin signaling in a sex-specific fashion despite their prepubertal status.
Collapse
Affiliation(s)
- A Mastrangelo
- Centre for Metabolomics and Bioanalysis (CEMBIO), Faculty of Pharmacy, San Pablo CEU University, Madrid, Spain
| | - G Á Martos-Moreno
- Department of Pediatrics & Pediatric Endocrinology, Instituto de Investigación La Princesa, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain.,CIBEROBN, Instituto de Salud Carlos III, Madrid, Spain
| | - A García
- Centre for Metabolomics and Bioanalysis (CEMBIO), Faculty of Pharmacy, San Pablo CEU University, Madrid, Spain
| | - V Barrios
- Department of Pediatrics & Pediatric Endocrinology, Instituto de Investigación La Princesa, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain.,CIBEROBN, Instituto de Salud Carlos III, Madrid, Spain
| | - F J Rupérez
- Centre for Metabolomics and Bioanalysis (CEMBIO), Faculty of Pharmacy, San Pablo CEU University, Madrid, Spain
| | - J A Chowen
- Department of Pediatrics & Pediatric Endocrinology, Instituto de Investigación La Princesa, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain.,CIBEROBN, Instituto de Salud Carlos III, Madrid, Spain
| | - C Barbas
- Centre for Metabolomics and Bioanalysis (CEMBIO), Faculty of Pharmacy, San Pablo CEU University, Madrid, Spain
| | - J Argente
- Department of Pediatrics & Pediatric Endocrinology, Instituto de Investigación La Princesa, Hospital Infantil Universitario Niño Jesús, Universidad Autónoma de Madrid, Madrid, Spain.,CIBEROBN, Instituto de Salud Carlos III, Madrid, Spain
| |
Collapse
|
6
|
Haghiac M, Yang XH, Presley L, Smith S, Dettelback S, Minium J, Belury MA, Catalano PM, Hauguel-de Mouzon S. Dietary Omega-3 Fatty Acid Supplementation Reduces Inflammation in Obese Pregnant Women: A Randomized Double-Blind Controlled Clinical Trial. PLoS One 2015; 10:e0137309. [PMID: 26340264 PMCID: PMC4560373 DOI: 10.1371/journal.pone.0137309] [Citation(s) in RCA: 99] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Accepted: 08/13/2015] [Indexed: 01/04/2023] Open
Abstract
Objective Long-chain omega 3 fatty acids, eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3) exert potent anti-inflammatory properties in humans. This study characterized the effects of omega-3 ω-3 fatty acids supplements (ω-3 FA) on the inflammatory status in the placenta and adipose tissue of overweight/obese pregnant women. Study Design A randomized, double-masked controlled trial was conducted in overweight/obese pregnant women that were randomly assigned to receive DHA plus EPA (2g/day) or the equivalent of a placebo twice a day from week 10–16 to term. Inflammatory pathways were characterized in: 1) adipose tissue and placenta of treated vs. untreated women; and 2) adipose and trophoblast cells cultured with long chain FAs. Results The sum of plasma DHA and EPA increased by 5.8 fold and ω-3 FA/ ω-6 FA ratio was 1.5 in treated vs. untreated women (p< 0.005). Plasma CRP concentrations were reduced (p<0.001). The adipose tissue and placenta of treated women exhibited a significant decrease in TLR4 adipose and placental expression as well as IL6, IL8, and TNFα In vitro, EPA and DHA suppressed the activation of TLR4, IL6, IL8 induced by palmitate in culture of adipose and trophoblast cells. Conclusion Supplementation of overweight/obese pregnant women with dietary ω-3 FAs for >25 weeks reduced inflammation in maternal adipose and the placental tissue. TLR4 appears as a central target of the anti-inflammatory effects at the cellular level. Trial Registration ClinicalTrials.gov NCT00957476
Collapse
Affiliation(s)
- Maricela Haghiac
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
| | - Xiao-hua Yang
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
| | - Larraine Presley
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
| | - Shoi Smith
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
| | - Shirley Dettelback
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
| | - Judi Minium
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
| | - Martha A. Belury
- Department of Human Nutrition, College of Education and Human Ecology, Ohio State University, Columbus, Ohio, United States of America
| | - Patrick M. Catalano
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
| | - Sylvie Hauguel-de Mouzon
- Department of Reproductive Biology, Center for Reproductive Health, MetroHealth Medical Center, Cleveland, Ohio, United States of America
- * E-mail:
| |
Collapse
|
7
|
White PJ, Mitchell PL, Schwab M, Trottier J, Kang JX, Barbier O, Marette A. Transgenic ω-3 PUFA enrichment alters morphology and gene expression profile in adipose tissue of obese mice: Potential role for protectins. Metabolism 2015; 64:666-76. [PMID: 25726444 DOI: 10.1016/j.metabol.2015.01.017] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 01/12/2015] [Accepted: 01/28/2015] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Dietary administration of ω-3 polyunsaturated fatty acids (PUFA) is often associated with altered adipose tissue (AT) morphology and/or function in obese mice. Yet, it is unclear whether this is an indirect consequence of reduced weight gain or results from direct actions of ω-3 PUFA. Here we studied the AT of high fat (HF)-fed fat-1 transgenic mice that convert endogenous ω-6 to ω-3 PUFA while maintaining equivalent fat accretion as their wild-type (WT) counterparts. MATERIALS AND METHODS Adipocyte size profiling, Affymetrix microarray pathway analysis, qPCR and protectin identification and analysis were performed in epididymal AT from hemizygous fat-1(+/-) mice and their wild type littermates that had been fed a HF diet for 8weeks from 6weeks of age. RESULTS Despite equivalent fat pad mass, we found that epididymal AT from HF-fed transgenic animals possesses fewer large and very large but more mid-size adipocytes compared to WT mice. In order to better understand the underlying mechanisms contributing to the observed alteration in adipocyte size we performed an Affymetrix microarray. Pathway analysis of these data highlighted adipogenesis, cholesterol biosynthesis, insulin signaling, prostaglandin synthesis/regulation and small ligand GPCRs as points where differentially expressed genes were significantly overrepresented. Observed changes were confirmed for four candidate genes: Cnr1, Cnr2, Faah and Pparg by qPCR. Finally we demonstrated that protectin DX is present in AT and that protectin DX and protectin D1 promote comparable PPARγ transcriptional activity. CONCLUSIONS These data provide unprecedented evidence that ω-3 PUFA coordinately regulate AT gene expression programs in a manner that is independent of restriction of weight gain or fat accrual and highlight an important influence of ω-3 PUFA on adipogenesis. Furthermore we provide primary evidence suggesting that protectins likely contribute to these effects via their influence on PPARγ.
Collapse
Affiliation(s)
- Phillip J White
- Department of Medicine, Québec Heart and Lung Institute, Université Laval, Ste-Foy, Québec, Canada and Laval University Hospital Research Center, Metabolism, Vascular and Renal Health Axis, Ste-Foy, Québec, Canada
| | - Patricia L Mitchell
- Department of Medicine, Québec Heart and Lung Institute, Université Laval, Ste-Foy, Québec, Canada and Laval University Hospital Research Center, Metabolism, Vascular and Renal Health Axis, Ste-Foy, Québec, Canada
| | - Michael Schwab
- Department of Medicine, Québec Heart and Lung Institute, Université Laval, Ste-Foy, Québec, Canada and Laval University Hospital Research Center, Metabolism, Vascular and Renal Health Axis, Ste-Foy, Québec, Canada
| | - Jocelyn Trottier
- Laboratory of Molecular Pharmacology, CHU-Québec Research Centre and the Faculty of Pharmacy, Laval University, Québec, Canada
| | - Jing X Kang
- Laboratory for Lipid Medicine and Technology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Olivier Barbier
- Laboratory of Molecular Pharmacology, CHU-Québec Research Centre and the Faculty of Pharmacy, Laval University, Québec, Canada
| | - André Marette
- Department of Medicine, Québec Heart and Lung Institute, Université Laval, Ste-Foy, Québec, Canada and Laval University Hospital Research Center, Metabolism, Vascular and Renal Health Axis, Ste-Foy, Québec, Canada.
| |
Collapse
|
8
|
Prostek A, Gajewska M, Kamola D, Bałasińska B. The influence of EPA and DHA on markers of inflammation in 3T3-L1 cells at different stages of cellular maturation. Lipids Health Dis 2014; 13:3. [PMID: 24387137 PMCID: PMC3903018 DOI: 10.1186/1476-511x-13-3] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Accepted: 12/27/2013] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND EPA and DHA have been reported to have anti-obesity and anti-inflammatory properties. Recent studies revealed that these positive actions of n-3 PUFA at least partially are connected with their influence on metabolism and secretory functions of the adipose tissue. However, their impact on old adipocytes is still poorly understood. Therefore the aim of the present study was to evaluate the influence of EPA and DHA on markers of inflammation in 3T3-L1 cells at different stages of cellular maturation. METHODS Young, mature and old differentiated 3T3-L1 adipocytes were cultured for 48 h in the presence of 100 μM EPA, or 50 μM DHA complexed to albumin, whereas in control conditions only albumin was added to the medium. The Oil Red O staining was used to confirm adipocytes differentiation, and measure triglycerides content in cells. The concentration of adipokines (interleukin 6, adiponectin and leptin) in conditioned media was measured using mouse-specific ELISA kits. RESULTS The fat accumulation in 3T3-L1 adipocytes was positively correlated with their age; however, EPA and DHA did not affect lipid accumulation on any stage of maturation. EPA and DHA increased the concentration of secreted adiponectin when compared with control, but only in the case of young adipocytes (58% and 35%, respectively). Moreover, EPA supplementation increased interleukin 6 concentration in conditioned medium, while DHA exerted an opposite effect on all stages of cellular maturation. Furthermore, EPA treatment increased leptin release from young cells, while DHA did not affect the secretion of this adipokine. In mature 3T3-L1 adipocytes both experimental factors decreased synthesis of leptin; however, in old cells no impact of these PUFA was noted. CONCLUSIONS In summary, age is an important determinant of fat accumulation in adipocytes and affects adipokines secretion by these cells. Moreover, the impact of investigated fatty acids: EPA and DHA on fat cells varies depending on the stage of maturation, and seems to be stronger in young cells than in mature and old ones. Docosahexaenoic acid exerts an anti-inflammatory action; however, on the basis of the obtained data it was not possible to determine whether eicosapentaenoic acid shows anti- or pro-inflammatory properties.
Collapse
Affiliation(s)
- Adam Prostek
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences (WULS-SGGW), Warsaw, Poland.
| | | | | | | |
Collapse
|
9
|
Juárez-López C, Klünder-Klünder M, Madrigal-Azcárate A, Flores-Huerta S. Omega-3 polyunsaturated fatty acids reduce insulin resistance and triglycerides in obese children and adolescents. Pediatr Diabetes 2013; 14:377-83. [PMID: 23438101 DOI: 10.1111/pedi.12024] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 01/04/2013] [Accepted: 01/04/2013] [Indexed: 11/28/2022] Open
Abstract
BACKGROUND Approximately 50% of obese children are insulin resistant. It has been suggested that pharmacological and nutritional options should be considered to improve the management of insulin resistance (IR). OBJECTIVE To assess the effect of metformin (Met) or omega-3 (ω-3) polyunsaturated fatty acids (PUFA) on the homeostasis model assessment-estimated insulin resistance (HOMA-IR) index, lipid profile, and body mass index (BMI) of obese children. METHODS We included 201 obese and insulin-resistant children and adolescents. Ninety-eight of them received 500 mg of Met, and 103 received 1.8 g of ω-3 PUFA for 12 wk. This was an open-label study with assignment of treatment based on which school the child attended. At the baseline and at the end of study, the following parameters were measured: weight, height, waist circumference, blood pressure, insulin, glucose, lipid profile, and HOMA-IR index. There were no lifestyle interventions. RESULTS At baseline, the age, BMI, and IR in children of both groups were comparable. The treatment assigned for each group was well tolerated. Metabolic changes were adjusted for age, sex, and change in BMI. Concerning the IR profile at the end of intervention, ω-3 significantly decreased the concentrations of glucose and insulin while reducing HOMA-IR values; meanwhile, Met negligibly affected insulin levels. Regarding lipids, Met increased high density lipoprotein cholesterol (HDL-C) and decreased low density lipoprotein cholesterol (LDL-C), but triglycerides were not affected; in contrast, triglycerides were decreased significantly by ω-3. The effects on BMI were marginal under Met but were significant with ω-3. CONCLUSION The results of this work suggest that ω-3 may be useful as an adjuvant therapy in obese children and adolescents with IR.
Collapse
Affiliation(s)
- Carlos Juárez-López
- Department for Innovation and Quality, Institute for Decentralized Public Health Services, INDESALUD, Campeche, Campeche 24040, Mexico
| | | | | | | |
Collapse
|
10
|
Singh AS, Atam V, Patel ML, Chaudhary SC, Sawlani KK, Das L. Carotid Intima Media Thickness as a Reflection of Generalized Atherosclerosis is Related to Body Mass Index in Ischemic Stroke Patients. NORTH AMERICAN JOURNAL OF MEDICAL SCIENCES 2013; 5:228-34. [PMID: 23626961 PMCID: PMC3632029 DOI: 10.4103/1947-2714.109200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Background: Carotid artery intima media thickness reflects the ongoing process of atherosclerosis in the body. The pathologic process occurring in the obese patients in the vascular system is atherosclerosis which is an important cause of ischemic stroke. Body mass index is an indirect measure of obesity in general population. Aim: The study was to assess the role of carotid artery intima media thickness as a marker of atherosclerosis and its relation with body mass index in ischemic stroke patients. Materials and Methods: Body mass index of the all stroke patients was calculated by using formula body mass in kilograms divided by the square of height in meters. The patients were classified in four groups of body mass index according to Indian standards. Carotid sonography was done to assess the common carotid artery intima media thickness in millimeters by using high resolution 7.5 MHz sonography technique. Results: The average Carotid intima media thickness in this study was 9.23mm. There was a significant association found between increasing carotid artery intima media thickness and groups of body mass index (P- <0.05) in ischemic stroke patients. Conclusions: Body mass index as an indicator of obesity and carotid intima media thickness both are very important risk factors for ischemic stroke and are associated with each other.
Collapse
Affiliation(s)
- Amit Shankar Singh
- Department of Medicine, King George Medical University, Lucknow, Uttar Pradesh, India
| | | | | | | | | | | |
Collapse
|
11
|
Schiel R, Kaps A, Bieber G. Electronic health technology for the assessment of physical activity and eating habits in children and adolescents with overweight and obesity IDA. Appetite 2011; 58:432-7. [PMID: 22155072 DOI: 10.1016/j.appet.2011.11.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2011] [Revised: 11/18/2011] [Accepted: 11/19/2011] [Indexed: 01/22/2023]
Abstract
OBJECTIVE It was the goal of the trial to study the impact of electronic healthcare technology into treatment. METHODS One hundred and twenty-four children/adolescents (females 56%, age 13.5±2.8 years, height 1.64±0.13 m, weight 85.4±23.0 kg, body-mass index (BMI) 31.3±5.2 kg/m(2), BMI-standard deviation score (SDS) 2.50±0.5) were included. To assess physical activity and eating habits, a mobile motion sensor integrated into a mobile phone with digital camera was used. RESULTS The children/adolescents had a significant weight reduction of 7.1±3.0 kg. BMI/BMI-SDS decreased (p<0.01). Intensity (14.1±6.4 activity units) and duration of physical activity (290.4±92.6 min/day) were assessed with sensors. Time walking: median 45.5 (range, 2.5-206.5), running 8.0 (range, 0-39.5), cycling 27.7 (range, 0-72.5), car driving 23.7 (range, 0-83.0) min/day. Comparing self-reported physical activity (walking 292.9 (range, 9.6-496.1), running 84.8 (range, 8.4-130.2) min/day) with assessment with sensors there were significant differences (p<0.01). Duration of physical activity documented by children/adolescents was higher than the assessment with motion sensors (walking 292.9 vs 45.5 min, p<0.01, running 84.8 vs 8.0 min, p<0.01). Sensor derived energy intake was higher than recommended (469.14±88.75 kcal vs 489.03±108.25 kcal, p=0.09). Performing multivariate analysis the following parameters showed associations with weight reduction (R-square=0.75): body weight (β=-0.95, p<0.01), C-reactive protein (CRP, β=0.15, p=0.07), physical activity, time spent in activities measured with sensors (β=-0.18, p=0.04), stress management (β=0.16, p=0.06), body fat mass at onset of the trial (β=0.45, p<0.01) and body shape (β=-0.25, p=0.01). CONCLUSION The innovative mobile movement detection system is highly accepted by children and adolescents. The system is able to augment existing weight reduction and stabilization strategies.
Collapse
Affiliation(s)
- Ralf Schiel
- MEDIGREIF-Inselklinik Heringsdorf GmbH, Department of Diabetes and Metabolic Diseases, Setheweg 11, D-17424 Ostseebad Heringsdorf, Germany.
| | | | | |
Collapse
|
12
|
Acute pancreatitis in obesity: adipokines and dietary fish oil. Dig Dis Sci 2011; 56:2318-25. [PMID: 21347559 DOI: 10.1007/s10620-011-1626-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 02/07/2011] [Indexed: 12/12/2022]
Abstract
BACKGROUND Acute pancreatitis is a substantial clinical problem accounting for 240,000 hospital admissions yearly in the United States. Obesity is epidemic and is clearly an independent risk factor for increased severity of acute pancreatitis (AP). Adipose tissue is an endocrine organ that secretes a variety of metabolically active substances termed adipokines. However, the role of adipokines in modulating acute pancreatitis severity remains incompletely understood. Dietary fish oil is rich in omega-3 free fatty acids and attenuates adipose tissue-induced inflammation. Therefore, we hypothesized that feeding obese mice diets rich in fish oil would alter the adipokine milieu and attenuate the severity of pancreatitis. METHODS Lean (C57BL/6 J) and obese (LepDb) mice were fed either a soybean oil- or fish oil-rich diet for 4 weeks. AP was induced by six hourly intraperitoneal injections of cerulein (50 μg/kg). Serum adipokine levels were measured, and pancreatitis severity was assessed histologically and by measuring pancreatic concentrations of interleukin-1 beta (IL-1β), interleukin-6 (IL-6), myleoperoxidase (MPO), and monocyte chemoattractant protein-1 (MCP-1). RESULTS Obese mice developed more severe pancreatitis than lean mice. Fish oil significantly decreased serum leptin (lean and obese) and increased serum adiponectin (lean only). Fish oil did not alter the baseline pancreatic inflammatory milieu, nor did it change histologic or biochemical pancreatitis severity. CONCLUSION These data demonstrate that a diet rich in fish oil altered the adipokine milieu in lean and congenitally obese mice; however, fish oil did not improve pancreatitis severity induced with cerulein hyperstimulation.
Collapse
|
13
|
Pilon G, Ruzzin J, Rioux LE, Lavigne C, White PJ, Frøyland L, Jacques H, Bryl P, Beaulieu L, Marette A. Differential effects of various fish proteins in altering body weight, adiposity, inflammatory status, and insulin sensitivity in high-fat-fed rats. Metabolism 2011; 60:1122-30. [PMID: 21306751 DOI: 10.1016/j.metabol.2010.12.005] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 12/09/2010] [Accepted: 12/09/2010] [Indexed: 02/07/2023]
Abstract
Mounting evidence suggests that the benefits of fish consumption are not limited to the well-appreciated effects of omega-3 fatty acids. We previously demonstrated that cod protein protects against the development of diet-induced insulin resistance. The goal of this study was to determine whether other fish protein sources present similar beneficial effects. Rats were fed a high-fat, high-sucrose diet containing protein from casein or fish proteins from bonito, herring, mackerel, or salmon. After 28 days, oral glucose tolerance tests or hyperinsulinemic-euglycemic clamps were performed; and tissues and plasma were harvested for biochemical analyses. Despite equal energy intake among all groups, the salmon-protein-fed group presented significantly lower weight gain that was associated with reduced fat accrual in epididymal white adipose tissue. Although this reduction in visceral adiposity was not associated with improved glucose tolerance, we found that whole-body insulin sensitivity for glucose metabolism was improved using the very sensitive hyperinsulinemic-euglycemic clamp technique. Importantly, expression of both tumor necrosis factor-α and interleukin-6 was reduced in visceral adipose tissue of all fish-protein-fed groups when compared with the casein-fed control group, suggesting that fish proteins carry anti-inflammatory properties that may protect against obesity-linked metabolic complications. Interestingly, consumption of the salmon protein diet was also found to raise circulating salmon calcitonin levels, which may underlie the reduction of weight gain in these rats. These data suggest that not all fish protein sources exert the same beneficial properties on the metabolic syndrome, although anti-inflammatory actions appear to be common.
Collapse
Affiliation(s)
- Geneviève Pilon
- Department of Medicine, Faculty of Medicine, Cardiology Axis of the Institut Universitaire de Cardiologie et de Pneumologie de Québec (Hôpital Laval) and Metabolism, Vascular and Renal Health Axis, Laval University Hospital Research Center, Quebec, Canada G1V 4G2
| | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
The ethanolamide metabolite of DHA, docosahexaenoylethanolamine, shows immunomodulating effects in mouse peritoneal and RAW264.7 macrophages: evidence for a new link between fish oil and inflammation. Br J Nutr 2011; 105:1798-807. [DOI: 10.1017/s0007114510005635] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Several mechanisms have been proposed for the positive health effects associated with dietary consumption of long-chain n-3 PUFA (n-3 LC-PUFA) including DHA (22 : 6n-3) and EPA (20 : 5n-3). After dietary intake, LC-PUFA are incorporated into membranes and can be converted to their corresponding N-acylethanolamines (NAE). However, little is known on the biological role of these metabolites. In the present study, we tested a series of unsaturated NAE on the lipopolysaccharide (LPS)-induced NO production in RAW264.7 macrophages. Among the compounds tested, docosahexaenoylethanolamine (DHEA), the ethanolamide of DHA, was found to be the most potent inhibitor, inducing a dose-dependent inhibition of NO release. Immune-modulating properties of DHEA were further studied in the same cell line, demonstrating that DHEA significantly suppressed the production of monocyte chemotactic protein-1 (MCP-1), a cytokine playing a pivotal role in chronic inflammation. In LPS-stimulated mouse peritoneal macrophages, DHEA also reduced MCP-1 and NO production. Furthermore, inhibition was also found to take place at a transcriptional level, as gene expression of MCP-1 and inducible NO synthase was inhibited by DHEA. To summarise, in the present study, we showed that DHEA, a DHA-derived NAE metabolite, modulates inflammation by reducing MCP-1 and NO production and expression. These results provide new leads in molecular mechanisms by which DHA can modulate inflammatory processes.
Collapse
|
15
|
Hajri T, Tao H, Wattacheril J, Marks-Shulman P, Abumrad NN. Regulation of adiponectin production by insulin: interactions with tumor necrosis factor-α and interleukin-6. Am J Physiol Endocrinol Metab 2011; 300:E350-60. [PMID: 21062957 PMCID: PMC3280698 DOI: 10.1152/ajpendo.00307.2010] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Obesity is often associated with insulin resistance, low-grade systemic inflammation, and reduced plasma adiponectin. Inflammation is also increased in adipose tissue, but it is not clear whether the reductions of adiponectin levels are related to dysregulation of insulin activity and/or increased proinflammatory mediators. In this study, we investigated the interactions of insulin, tumor necrosis factor-α (TNF-α) and interleukin 6 (IL-6) in the regulation of adiponectin production using in vivo and in vitro approaches. Plasma adiponectin and parameters of insulin resistance and inflammation were assessed in a cohort of lean and obese insulin-resistant subjects. In addition, the effect of insulin was examined in vivo using the hyperinsulinemic-euglycemic clamp, and in adipose tissue (AT) cultures. Compared with lean subjects, the levels of total adiponectin, and especially the high-molecular-weight (HMW) isomer, were abnormally low in obese insulin-resistant subjects. The hyperinsulinemic clamp data confirmed the insulin-resistant state in the obese patients and showed that insulin infusion significantly increased the plasma adiponectin in lean but not obese subjects (P < 0.01). Similarly, insulin increased total adiponectin release from AT explants of lean and not obese subjects. Moreover, expression and secretion of TNF-α and IL-6 increased significantly in AT of obese subjects and were negatively associated with expression and secretion of adiponectin. In 3T3-L1 and human adipocyte cultures, insulin strongly enhanced adiponectin expression (2-fold) and secretion (3-fold). TNF-α, and not IL-6, strongly opposed the stimulatory effects of insulin. Intriguingly, the inhibitory effect of TNF-α was especially directed toward the HMW isomer of adiponectin. In conclusion, these studies show that insulin upregulates adiponectin expression and release, and that TNF-α opposes the stimulatory effects of insulin. A combination of insulin resistance and increased TNF-α production could explain the decline of adiponectin levels and alterations of isomer composition in plasma of obese insulin-resistant subjects.
Collapse
Affiliation(s)
- Tahar Hajri
- Department of Surgery, Vanderbilt University School of Medicine, Nashville, Tennessee 37212, USA.
| | | | | | | | | |
Collapse
|
16
|
Abstract
Obesity leads to several chronic morbidities including type 2 diabetes, dyslipidaemia, atherosclerosis and hypertension, which are major components of the metabolic syndrome. White adipose tissue (WAT) metabolism and WAT-derived factors (fatty acids and adipokines) play an important role in the development of these metabolic disturbances. In fact, dysregulated adipokine secretion from the expanded WAT of obese individuals contributes to the development of systemic low-grade inflammation, insulin resistance and metabolic syndrome. The n-3 PUFA EPA and DHA have been widely reported to have protective effects in a range of chronic inflammatory conditions including obesity. In fact, n-3 PUFA have been shown to ameliorate low-grade inflammation in adipose tissue associated with obesity and up-regulate mitochondrial biogenesis and induce beta-oxidation in WAT in mice. Moreover, the ability of n-3 PUFA to regulate adipokine gene expression and secretion has been observed both in vitro and in vivo in rodents and human subjects. The present article reviews: (1) the physiological role of adiponectin, leptin and pre-B cell colony-enhancer factor/visfatin, three adipokines with immune-modulatory properties involved in the regulation of metabolism and insulin sensitivity and (2) the actions of n-3 PUFA on these adipokines focusing on the underlying mechanisms and the potential relationship with the beneficial effects of these fatty acids on obesity-associated metabolic disorders. It can be concluded that the ability of n-3 PUFA to improve obesity and insulin resistance conditions partially results from the modulation of WAT metabolism and the secretion of bioactive adipokines including leptin, adiponectin and visfatin.
Collapse
|
17
|
Samane S, Christon R, Dombrowski L, Turcotte S, Charrouf Z, Lavigne C, Levy E, Bachelard H, Amarouch H, Marette A, Haddad PS. Fish oil and argan oil intake differently modulate insulin resistance and glucose intolerance in a rat model of dietary-induced obesity. Metabolism 2009; 58:909-19. [PMID: 19394055 DOI: 10.1016/j.metabol.2009.02.013] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2008] [Accepted: 02/23/2009] [Indexed: 01/28/2023]
Abstract
We investigated the potential metabolic benefits of fish oil (FO) or vegetable argan oil (AO) intake in a dietary model of obesity-linked insulin resistance. Rats were fed a standard chow diet (controls), a high-fat/high-sucrose (HFHS) diet, or an HFHS diet in which 6% of the fat was replaced by either FO or AO feeding, respectively. The HFHS diet increased adipose tissue weight and insulin resistance as revealed by increased fasting glucose and exaggerated glycemic and insulin responses to a glucose tolerance test (intraperitoneal glucose tolerance test). Fish oil feeding prevented fat accretion, reduced fasting glycemia, and normalized glycemic or insulin responses to intraperitoneal glucose tolerance test as compared with HFHS diet. Unlike FO consumption, AO intake failed to prevent obesity, yet restored fasting glycemia back to chow-fed control values. Insulin-induced phosphorylation of Akt and Erk in adipose tissues, skeletal muscles, and liver was greatly attenuated in HFHS rats as compared with chow-fed controls. High-fat/high-sucrose diet-induced insulin resistance was also confirmed in isolated hepatocytes. Fish oil intake prevented insulin resistance by improving or fully restoring insulin signaling responses in all tissues and isolated hepatocytes. Argan oil intake also improved insulin-dependent phosphorylations of Akt and Erk; and in adipose tissue, these responses were increased even beyond values observed in chow-fed controls. Taken together, these results strongly support the beneficial action of FO on diet-induced insulin resistance and glucose intolerance, an effect likely explained by the ability of FO to prevent HFHS-induced adiposity. Our data also show for the first time that AO can improve some of the metabolic and insulin signaling abnormalities associated with HFHS feeding.
Collapse
Affiliation(s)
- Samira Samane
- Department of Pharmacology, Université de Montréal, Montréal, Québec, Canada
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Cereda E, Malavazos AE. Comment on: White PJ, Marette A (2006) is omega-3 key to unlocking inflammation in obesity? Diabetologia 49:1999-2001. Diabetologia 2006; 49:2813-4. [PMID: 17047915 DOI: 10.1007/s00125-006-0453-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2006] [Accepted: 08/14/2006] [Indexed: 10/24/2022]
|