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Otto JR, Pewan SB, Edmunds RC, Mwangi FW, Kinobe RT, Adegboye OA, Malau-Aduli AEO. Differential expressions of FASN, SCD, and FABP4 genes in the ribeye muscle of omega-3 oil-supplemented Tattykeel Australian White lambs. BMC Genomics 2023; 24:666. [PMID: 37932697 PMCID: PMC10626737 DOI: 10.1186/s12864-023-09771-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Accepted: 10/27/2023] [Indexed: 11/08/2023] Open
Abstract
BACKGROUND The concept of the functional nutritional value of health-beneficial omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFA) is becoming a phenomenon among red meat consumers globally. This study examined the expressions of three lipogenic genes (fatty acid binding protein 4, FABP4, fatty acid synthase, FASN; and stearoyl-CoA desaturase, SCD) in the ribeye (Longissimus thoracis et lumborum) muscle of Tattykeel Australian White (TAW) lambs fed fortified omega-3 diets and correlations with fatty acids. To answer the research question, "are there differences in the expression of lipogenic genes between control, MSM whole grain and omega-3 supplemented lambs?", we tested the hypothesis that fortification of lamb diets with omega-3 will lead to a down-regulation of lipogenic genes. Seventy-five six-month old TAW lambs were randomly allocated to the (1) omega-3 oil-fortified grain pellets, (2) unfortified grain pellets (control) or (3) unfortified MSM whole grain pellets diet supplements to generate three treatments of 25 lambs each. The feeding trial lasted 47 days. RESULTS From the Kruskal-Wallis test, the results showed a striking disparity in lipogenic gene expression between the three dietary treatments in which the FABP4 gene was significantly up-regulated by 3-folds in the muscles of lambs fed MSM Milling (MSM) whole grain diet compared to the omega-3 and control diets. A negative correlation was observed between FASN gene expression and intramuscular fat (IMF), eicosapentaenoic acid (EPA), total polyunsaturated fatty acids (PUFA), omega-6 polyunsaturated fatty acids (n-6 PUFA) and monounsaturated fatty acids (MUFA). The FABP4 gene expression was positively correlated (P < 0.05) with EPA and docosahexaenoic acid (DHA). CONCLUSION Taken together, this study's results suggest that FABP4 and FASN genes perform an important role in the biosynthesis of fatty acids in the ribeye muscle of TAW lambs, and supplementary diet composition is an important factor influencing their expressions.
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Affiliation(s)
- John Roger Otto
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia.
| | - Shedrach Benjamin Pewan
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
- National Veterinary Research Institute, Private Mail Bag 01, Vom, Plateau State, Nigeria
| | | | - Felista Waithira Mwangi
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
- School of Medicine and Public Health, College of Health, Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Robert Tumwesigye Kinobe
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, 4811, Australia
| | | | - Aduli Enoch Othniel Malau-Aduli
- School of Environmental and Life Sciences, College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, 2308, Australia
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Al-Emarah MK, Kazerani HR, Taghizad F, Dehghani H, Elahi M. Anti-obesity effect of the bacterial product nisin in an NIH Swiss mouse model. Lipids Health Dis 2023; 22:23. [PMID: 36765351 PMCID: PMC9912503 DOI: 10.1186/s12944-023-01788-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/02/2023] [Indexed: 02/12/2023] Open
Abstract
Obesity is a life-threatening metabolic disorder that predisposes individuals to other diseases. In this study, the effect of nisin, a bacteriocin produced by some bacteria, on an animal model of obesity based on selected parameters was investigated. Forty Swiss NIH mice were randomly divided into four groups and received either a placebo (saline) or nisin (25, 50, or 100 μg/kg, ip) daily for 8 weeks. The mice in all groups were fed a high-sugar diet throughout the experiment. Bodyweight and food intake were measured weekly, and at the end of the experiment, the levels of FBS, serum triglyceride, cholesterol, high-density lipoprotein, low-density lipoprotein, and hepatic enzymes were tested, and red and white blood cell counts, hemoglobin concentration, mean corpuscular volume, mean corpuscular hemoglobin, and mean corpuscular hemoglobin concentration were determined. Finally, the expression levels of some obesity-related genes, including stearoyl-CoA desaturase-1 (SCD-1), glucose transporter-4 (GLUT4), zinc finger protein 423 (zfp423), 422 (ap2), and tumor necrosis factor-alpha (TNF-α), were assessed using reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR). After the experiment, the body weights, abdominal fat, and body mass index were significantly lower in the nisin-treated groups than in the control group. The highest effect was observed with 50 μg/kg nisin. The expression of SCD-1, GLUT4, 422(ap2), and TNF-α decreased significantly following treatment with nisin. No significant differences were observed in the other studied parameters, and no toxic effects were observed for nisin under these experimental conditions. The results suggested that nisin could have antiobesity effects.
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Affiliation(s)
- M. K. Al-Emarah
- grid.411301.60000 0001 0666 1211Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran ,Faculty of Agriculture and Marshlands, University of Thi-qar, Thi-qar, Iraq
| | - H. R. Kazerani
- grid.411301.60000 0001 0666 1211Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - F. Taghizad
- grid.411301.60000 0001 0666 1211Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
| | - H. Dehghani
- grid.411301.60000 0001 0666 1211Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran ,grid.411301.60000 0001 0666 1211Stem Cell Biology and Regenerative Medicine Research Group, Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - M. Elahi
- grid.411301.60000 0001 0666 1211Department of Basic Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
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Wu Y, Green CL, Wang G, Yang D, Li L, Li B, Wang L, Li M, Li J, Xu Y, Zhang X, Niu C, Hu S, Togo J, Mazidi M, Derous D, Douglas A, Speakman JR. Effects of dietary macronutrients on the hepatic transcriptome and serum metabolome in mice. Aging Cell 2022; 21:e13585. [PMID: 35266264 PMCID: PMC9009132 DOI: 10.1111/acel.13585] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 02/13/2022] [Indexed: 12/18/2022] Open
Abstract
Dietary macronutrient composition influences both hepatic function and aging. Previous work suggested that longevity and hepatic gene expression levels were highly responsive to dietary protein, but almost unaffected by other macronutrients. In contrast, we found expression of 4005, 4232, and 4292 genes in the livers of mice were significantly associated with changes in dietary protein (5%–30%), fat (20%–60%), and carbohydrate (10%–75%), respectively. More genes in aging‐related pathways (notably mTOR, IGF‐1, and NF‐kappaB) had significant correlations with dietary fat intake than protein and carbohydrate intake, and the pattern of gene expression changes in relation to dietary fat intake was in the opposite direction to the effect of graded levels of caloric restriction consistent with dietary fat having a negative impact on aging. We found 732, 808, and 995 serum metabolites were significantly correlated with dietary protein (5%–30%), fat (8.3%–80%), and carbohydrate (10%–80%) contents, respectively. Metabolomics pathway analysis revealed sphingosine‐1‐phosphate signaling was the significantly affected pathway by dietary fat content which has also been identified as significant changed metabolic pathway in the previous caloric restriction study. Our results suggest dietary fat has major impact on aging‐related gene and metabolic pathways compared with other macronutrients.
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Affiliation(s)
- Yingga Wu
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
| | - Cara L. Green
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
| | - Guanlin Wang
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
| | - Dengbao Yang
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
| | - Li Li
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
| | - Baoguo Li
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
| | - Lu Wang
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
| | - Min Li
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
- Shenzhen Key Laboratory of Metabolic Health Center for Energy Metabolism and Reproduction Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen People’s Republic of China
| | - Jianbo Li
- University of Dali Dali Yunnan Province People’s Republic of China
| | - Yanchao Xu
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
| | - Xueying Zhang
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
- Shenzhen Key Laboratory of Metabolic Health Center for Energy Metabolism and Reproduction Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen People’s Republic of China
| | - Chaoqun Niu
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- Shenzhen Key Laboratory of Metabolic Health Center for Energy Metabolism and Reproduction Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen People’s Republic of China
| | - Sumei Hu
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
| | - Jacques Togo
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
| | - Mohsen Mazidi
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- University of Chinese Academy of Sciences Beijing People’s Republic of China
| | - Davina Derous
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
| | - Alex Douglas
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
| | - John R. Speakman
- State Key Laboratory of Molecular Developmental Biology Institute of Genetics and Developmental Biology Chinese Academy of Sciences Beijing People’s Republic of China
- Institute of Biological and Environmental Sciences University of Aberdeen Aberdeen Scotland UK
- Shenzhen Key Laboratory of Metabolic Health Center for Energy Metabolism and Reproduction Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen People’s Republic of China
- CAS Center of Excellence in Animal Evolution and Genetics Kunming People’s Republic of China
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Sun J, Zhang L, Zhou F, Shaw S, Roos A, Berger M, Bäcklin BM, Huang Y, Zheng X, Wang X, Chen D. Hepatic Fatty Acid Profiles Associated with Exposure to Emerging and Legacy Halogenated Contaminants in Two Harbor Seal Populations across the North Atlantic. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:1830-1840. [PMID: 35068154 DOI: 10.1021/acs.est.1c06512] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Fatty acids (FAs) have been extensively used as indicators of foraging ecology in marine mammals, yet their association with exposure to contaminants has rarely been investigated. The present study provided the first characterization of the relationship between hepatic FA profiles and exposure to a suite of contaminants in a sentinel species─the harbor seal (Phoca vitulina)─from the Gulf of Maine and the south coast of Sweden. FA profiles differed in the two seal populations, and the levels of legacy and alternative brominated flame retardants and polyhalogenated carbazoles were significantly elevated in Maine seals. Correlations between individual FAs and multiple flame retardants (FRs) and poly- and perfluoroalkyl substances (PFASs) were found in seals from both populations. Moreover, several FR and PFAS chemicals were significantly associated with the estimated desaturating enzyme activity inferred from the FA profiles. The ratios of poly to monounsaturated FAs (∑PUFAs/∑MUFAs) and those of unsaturated to saturated FAs (∑UFAs/∑SFAs) were significantly associated with HBBZ, PFHxS, or BDE 47 in seals from Maine and Sweden, whereas ∑n - 6/∑n - 3 PUFAs was significantly associated with BDE 154 and 36-CCZ in Swedish and Maine seals, respectively. Our results suggest the lipid metabolism-disrupting potential of these contaminants in marine mammals and warrant continuous biomonitoring and risk assessment, considering the critical role of PUFAs in vital biological processes.
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Affiliation(s)
- Jiachen Sun
- School of Environment, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, CN-510632 Guangzhou, Guangdong, China
| | - Long Zhang
- School of Environment, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, CN-510632 Guangzhou, Guangdong, China
| | - Fengli Zhou
- Research Center of Harmful Algae and Marine Biology, Jinan University, CN-510632 Guangzhou, Guangdong, China
| | - Susan Shaw
- Shaw Institute, Blue Hill Research Center, Blue Hill, Maine 04614, United States
| | - Anna Roos
- Department of Contaminant Research and Monitoring, Swedish Museum of Natural History, Box 5007, Stockholm SE-10405, Sweden
| | - Michelle Berger
- Shaw Institute, Blue Hill Research Center, Blue Hill, Maine 04614, United States
| | - Britt-Marie Bäcklin
- Department of Contaminant Research and Monitoring, Swedish Museum of Natural History, Box 5007, Stockholm SE-10405, Sweden
| | - Yichao Huang
- Department of Toxicology, School of Public Health, Anhui Medical University, CN-230032 Hefei, Anhui, China
| | - Xiaoshi Zheng
- School of Environment, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, CN-510632 Guangzhou, Guangdong, China
| | - Xiaodong Wang
- Research Center of Harmful Algae and Marine Biology, Jinan University, CN-510632 Guangzhou, Guangdong, China
| | - Da Chen
- School of Environment, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, CN-510632 Guangzhou, Guangdong, China
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5
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Mikolajczak A, Sallam NA, Singh RD, Scheidl TB, Walsh EJ, Larion S, Huang C, Thompson JA. Accelerated developmental adipogenesis programs adipose tissue dysfunction and cardiometabolic risk in offspring born to dams with metabolic dysfunction. Am J Physiol Endocrinol Metab 2021; 321:E581-E591. [PMID: 34459218 PMCID: PMC8791794 DOI: 10.1152/ajpendo.00229.2021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
This study determined if a perturbation in in utero adipogenesis leading to later life adipose tissue (AT) dysfunction underlies programming of cardiometabolic risk in offspring born to dams with metabolic dysfunction. Female mice heterozygous for the leptin receptor deficiency (Hetdb) had 2.4-fold higher prepregnancy fat mass and in late gestation had higher plasma insulin and triglycerides compared with wild-type (Wt) females (P < 0.05). To isolate the role of the intrauterine milieu, wild-type (Wt) offspring from each pregnancy were studied. Differentiation potential in isolated progenitors and cell size distribution analysis revealed accelerated adipogenesis in Wt pups born to Hetdb dams, accompanied by a higher accumulation of neonatal fat mass. In adulthood, whole body fat mass by NMR was higher in male (69%) and female (20%) Wt offspring born to Hetdb versus Wt pregnancies, along with adipocyte hypertrophy and hyperlipidemia (all P < 0.05). Lipidomic analyses by gas chromatography revealed an increased lipogenic index (16:0/18:2n6) after high-fat/fructose diet (HFFD). Postprandial insulin, ADIPO-IR, and ex vivo AT lipolytic responses to isoproterenol were all higher in Wt offspring born to Hetdb dams (P < 0.05). Intrauterine metabolic stimuli may direct a greater proportion of progenitors toward terminal differentiation, thereby predisposing to hypertrophy-induced adipocyte dysfunction.NEW & NOTEWORTHY This study reveals that accelerated adipogenesis during the perinatal window of adipose tissue development predisposes to later life hypertrophic adipocyte dysfunction, thereby compromising the buffering function of the subcutaneous depot.
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Affiliation(s)
- Anna Mikolajczak
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Nada A Sallam
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Faculty of Pharmacy, Cairo University, Giza, Egypt
| | - Radha D Singh
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Calgary, Alberta, Canada
| | - Taylor B Scheidl
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Emma J Walsh
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Sebastian Larion
- Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, South Carolina
| | - Carol Huang
- Department of Pediatrics, University of Calgary, Calgary, Alberta, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
| | - Jennifer A Thompson
- Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta, Canada
- Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
- Libin Cardiovascular Institute, Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Calgary, Alberta, Canada
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Drag J, Knapik-Czajka M, Gawedzka A, Gdula-Argasinska J, Jaskiewicz J. Impact of High-Sucrose Diet on the mRNA Levels for Elongases and Desaturases and Estimated Protein Activity in Rat Adipose Tissue. BIOCHEMISTRY. BIOKHIMIIA 2021; 86:525-532. [PMID: 33993857 DOI: 10.1134/s0006297921050011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/09/2021] [Accepted: 02/09/2021] [Indexed: 06/12/2023]
Abstract
Fatty acids (FAs) present in the adipose tissue (AT) can be modified by elongases and desaturases. These enzymes are regulated by different factors including nutrients. The aim of the study was to evaluate the impact of high-sucrose diet (HSD; 68% sucrose) on the levels of mRNAs for elongases (Elovl2, Elovl5, Elovl6) and desaturases (Fads1, Fads2, Scd) and on the activity of the corresponding proteins in the rat AT. Male Wistar rats were randomized into two study groups: fed with an HSD and with a standard diet (ST). The mRNA levels were determined by a semi-quantitative reverse transcription-PCR. FA composition was analyzed by gas chromatography, and FA ratios were used to estimate the activity of the enzymes. In the HSD rats, the levels of Elovl5, Elovl6, Fads1, and Scd mRNAs were higher, while the level of Fads2 mRNA was lower than in the ST group. Higher levels of Elovl5 and Elovl6 mRNAs corresponded to higher relative activities of these enzymes, while downregulation of the Fads2 mRNA was associated with the lower activity of this desaturase. In contrast, an increase in the level of Scd mRNA was accompanied by a decrease in the enzyme activity. Less monounsaturated FAs were detected in the AT of HSD rats than in the ST group. The composition of individual FAs differed between the groups. This study supports the notion that the regulation of mRNA levels and activity of both elongases and desaturases play an important role in managing the AT lipid composition in response to changes in the dietary status.
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Affiliation(s)
- Jagoda Drag
- Department of Biochemical Analytics, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, 30-688, Poland.
| | - Malgorzata Knapik-Czajka
- Department of Biochemical Analytics, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, 30-688, Poland.
| | - Anna Gawedzka
- Department of Biochemical Analytics, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, 30-688, Poland.
| | - Joanna Gdula-Argasinska
- Department of Radioligands, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, 30-688, Poland.
| | - Jerzy Jaskiewicz
- Department of Biochemical Analytics, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, 30-688, Poland.
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Monounsaturated Fatty Acids in Obesity-Related Inflammation. Int J Mol Sci 2020; 22:ijms22010330. [PMID: 33396940 PMCID: PMC7795523 DOI: 10.3390/ijms22010330] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/23/2020] [Accepted: 12/25/2020] [Indexed: 12/14/2022] Open
Abstract
Obesity is an important aspect of the metabolic syndrome and is often associated with chronic inflammation. In this context, inflammation of organs participating in energy homeostasis (such as liver, adipose tissue, muscle and pancreas) leads to the recruitment and activation of macrophages, which secrete pro-inflammatory cytokines. Interleukin-1β secretion, sustained C-reactive protein plasma levels and activation of the NLRP3 inflammasome characterize this inflammation. The Stearoyl-CoA desaturase-1 (SCD1) enzyme is a central regulator of lipid metabolism and fat storage. This enzyme catalyzes the generation of monounsaturated fatty acids (MUFAs)-major components of triglycerides stored in lipid droplets-from saturated fatty acid (SFA) substrates. In this review, we describe the molecular effects of specific classes of fatty acids (saturated and unsaturated) to better understand the impact of different diets (Western versus Mediterranean) on inflammation in a metabolic context. Given the beneficial effects of a MUFA-rich Mediterranean diet, we also present the most recent data on the role of SCD1 activity in the modulation of SFA-induced chronic inflammation.
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8
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MiR-125b-2 knockout increases high-fat diet-induced fat accumulation and insulin resistance. Sci Rep 2020; 10:21969. [PMID: 33319811 PMCID: PMC7738482 DOI: 10.1038/s41598-020-77714-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 11/09/2020] [Indexed: 12/26/2022] Open
Abstract
Obese individuals are more susceptible to comorbidities than individuals of healthy weight, including cardiovascular disease and metabolic disorders. MicroRNAs are a class of small and noncoding RNAs that are implicated in the regulation of chronic human diseases. We previously reported that miR-125b plays a critical role in adipogenesis in vitro. However, the involvement of miR-125b-2 in fat metabolism in vivo remains unknown. In the present study, miR-125b-2 knockout mice were generated using CRISPR/CAS9 technology, resulting in mice with a 7 bp deletion in the seed sequence of miR-125b-2. MiR-125b-2 knockout increased the weight of liver tissue, epididymal white fat and inguinal white fat. MiR-125b-2 knockout also increased adipocyte volume in HFD-induced obese mice, while there were no significant differences in body weight and feed intake versus mice fed a normal diet. Additionally, qRT-PCR and western blot analysis revealed that the expression of the miR-125b-2 target gene SCD-1 and fat synthesis-associated genes, such as PPARγ and C/EBPα, were significantly up-regulated in miR-125b-2KO mice (P < 0.05). Moreover, miR-125b-2KO altered HFD-induced changes in glucose tolerance and insulin resistance. In conclusion, we show that miR-125b-2 is a novel potential target for regulating fat accumulation, and also a candidate target to develop novel treatment strategies for obesity and diabetes.
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Fahmy SR, Zaki NI, Eid SZ, Mohamed AS, Hassanein SS. Effectiveness of Echinochrome on HFD-Induced Hyperlipidemia in Rats. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:337-344. [PMID: 31628663 PMCID: PMC6814671 DOI: 10.1007/s13659-019-00221-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 10/06/2019] [Indexed: 05/08/2023]
Abstract
Obesity has been identified with an expanded danger of a progression of illnesses that include different organ-frameworks of the body. In the present examination, we evaluated the hypolipidemic properties of Echinochrome (Ech) pigment in a high-fat diet (HFD) induced hyperlipidemia in rats. After the hyperlipidemic model was set up, rats were haphazardly separated into five groups as follows: normal control group, HFD group, Atorvastatin (ATOR) group (80 mg/kg), Ech group (1 mg/kg) and combined group ATOR + Ech. The outcomes demonstrated that Ech improves lipid profile, liver functions, kidney functions and antioxidant markers of obese rats. The findings of the present investigation indicated that the Ech possesses hypolipidemic potential in obese rats.
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Affiliation(s)
- Sohair R. Fahmy
- Zoology Department, Faculty of Science, Cairo University, Giza, 12613 Egypt
| | - Nashwah Ismail Zaki
- Physiology Department, National Organization for Drug Control and Research, Cairo, Egypt
| | | | | | - Sarah S. Hassanein
- Zoology Department, Faculty of Science, Cairo University, Giza, 12613 Egypt
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10
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Butruille L, Marousez L, Pourpe C, Oger F, Lecoutre S, Catheline D, Görs S, Metges CC, Guinez C, Laborie C, Deruelle P, Eeckhoute J, Breton C, Legrand P, Lesage J, Eberlé D. Maternal high-fat diet during suckling programs visceral adiposity and epigenetic regulation of adipose tissue stearoyl-CoA desaturase-1 in offspring. Int J Obes (Lond) 2019; 43:2381-2393. [PMID: 30622312 DOI: 10.1038/s41366-018-0310-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 11/15/2018] [Accepted: 12/10/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The lactation-suckling period is critical for white adipose tissue (WAT) development. Early postnatal nutrition influences later obesity risk but underlying mechanisms remain elusive. Here, we tested whether altered postnatal nutrition specifically during suckling impacts epigenetic regulation of key metabolic genes in WAT and alter long-term adiposity set point. METHODS We analyzed the effects of maternal high-fat (HF) feeding in rats exclusively during lactation-suckling on breast milk composition and its impact on male offspring visceral epidydimal (eWAT) and subcutaneous inguinal (iWAT) depots during suckling and in adulthood. RESULTS Maternal HF feeding during lactation had no effect on mothers' body weight (BW) or global breast milk composition, but induced qualitative changes in breast milk fatty acid (FA) composition (high n-6/n-3 polyunsaturated FA ratio and low medium-chain FA content). During suckling, HF neonates showed increased BW and mass of both eWAT and iWAT depot but only eWAT displayed an enhanced adipogenic transcriptional signature. In adulthood, HF offspring were predisposed to weight gain and showed increased hyperplastic growth only in eWAT. This specific eWAT expansion was associated with increased expression and activity of stearoyl-CoA desaturase-1 (SCD1), a key enzyme of FA metabolism. SCD1 converts saturated FAs, e.g. palmitate and stearate, to monounsaturated FAs, palmitoleate and oleate, which are the predominant substrates for triglyceride synthesis. Scd1 upregulation in eWAT was associated with reduced DNA methylation in Scd1 promoter surrounding a PPARγ-binding region. Conversely, changes in SCD1 levels and methylation were not observed in iWAT, coherent with a depot-specific programming. CONCLUSIONS Our data reveal that maternal HF feeding during suckling programs long-term eWAT expansion in part by SCD1 epigenetic reprogramming. This programming events occurred with drastic changes in breast milk FA composition, suggesting that dietary FAs are key metabolic programming factors in the early postnatal period.
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Affiliation(s)
- Laura Butruille
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Lucie Marousez
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Charlène Pourpe
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Frédérik Oger
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Simon Lecoutre
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Daniel Catheline
- Laboratoire de Biochimie et Nutrition Humaine INRA 1378, Agrocampus Ouest, 65 rue de Saint Brieuc, 35042, Rennes cedex, France
| | - Solvig Görs
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology, D-18196, Dummerstorf, Germany
| | - Cornelia C Metges
- Leibniz Institute for Farm Animal Biology (FBN), Institute of Nutritional Physiology, D-18196, Dummerstorf, Germany
| | - Céline Guinez
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Christine Laborie
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Philippe Deruelle
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Jérôme Eeckhoute
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011-EGID, F-59000, Lille, France
| | - Christophe Breton
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Philippe Legrand
- Laboratoire de Biochimie et Nutrition Humaine INRA 1378, Agrocampus Ouest, 65 rue de Saint Brieuc, 35042, Rennes cedex, France
| | - Jean Lesage
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France
| | - Delphine Eberlé
- Univ. Lille, EA4489, Équipe Malnutrition Maternelle et Programmation des Maladies Métaboliques, F-59000, Lille, France.
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Sánchez-Blanco C, Amusquivar E, Bispo K, Herrera E. Dietary fish oil supplementation during early pregnancy in rats on a cafeteria-diet prevents fatty liver in adult male offspring. Food Chem Toxicol 2019; 123:546-552. [DOI: 10.1016/j.fct.2018.12.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 12/03/2018] [Accepted: 12/06/2018] [Indexed: 01/07/2023]
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Dunder L, Halin Lejonklou M, Lind L, Risérus U, Lind PM. Low-dose developmental bisphenol A exposure alters fatty acid metabolism in Fischer 344 rat offspring. ENVIRONMENTAL RESEARCH 2018; 166:117-129. [PMID: 29885613 DOI: 10.1016/j.envres.2018.05.023] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 05/18/2018] [Accepted: 05/22/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Bisphenol A (BPA) is an endocrine disruptor and also a suggested obesogen and metabolism-disrupting chemical. Accumulating data indicates that the fatty acid (FA) profile and their ratios in plasma and other metabolic tissues are associated with metabolic disorders. Stearoyl-CoA desaturase 1 (SCD-1) is a key regulator of lipid metabolism and its activity can be estimated by dividing the FA product by its precursor measured in blood or other tissues. OBJECTIVE The primary aim of this study was to investigate the effect of low-dose developmental BPA exposure on tissue-specific FA composition including estimated SCD-1 activity, studied in 5- and 52-week (wk)-old Fischer 344 (F344) rat offspring. METHODS Pregnant F344 rats were exposed to BPA via their drinking water corresponding to 0: [CTRL], 0.5: [BPA0.5], or 50 µg/kg BW/day: [BPA50], from gestational day 3.5 until postnatal day 22. RESULTS BPA0.5 increased SCD-16 (estimated as the 16:1n-7/16:0 ratio) and SCD-18 (estimated as the 18:1n-9/18:0 ratio) indices in inguinal white adipose tissue triglycerides (iWAT-TG) and in plasma cholesterol esters (PL-CE), respectively, in 5-wk-old male offspring. In addition, BPA0.5 altered the FA composition in male offspring, e.g. by decreasing levels of the essential polyunsaturated FA linoleic acid (18:2n-6) in iWAT-and liver-TG. No differences were observed regarding the studied FAs in 52-wk-old offspring, although a slightly increased BW was observed in 52-wk-old female offspring. CONCLUSIONS Low-dose developmental BPA exposure increased SCD-16 in iWAT-TG and SCD-18 in PL-CE of male offspring, which may reflect higher SCD-1 activity in these tissues. Altered desaturation activity and signs of altered FA composition are novel findings that may indicate insulin resistance in the rat offspring. These aforementioned results, together with the observed increased BW, adds to previously published data demonstrating that BPA can act as a metabolism disrupting chemical.
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Affiliation(s)
- Linda Dunder
- Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Sweden.
| | - Margareta Halin Lejonklou
- Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Sweden.
| | - Lars Lind
- Department of Medical Sciences, Cardiovascular Epidemiology, Uppsala University, Sweden.
| | - Ulf Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Sweden.
| | - P Monica Lind
- Department of Medical Sciences, Occupational and Environmental Medicine, Uppsala University, Sweden.
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Al-Muzafar HM, Amin KA. Thiazolidinedione induces a therapeutic effect on hepatosteatosis by regulating stearoyl-CoA desaturase-1, lipase activity, leptin and resistin. Exp Ther Med 2018; 16:2938-2948. [PMID: 30214514 PMCID: PMC6125847 DOI: 10.3892/etm.2018.6563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 04/06/2018] [Indexed: 02/06/2023] Open
Abstract
Hepatosteatosis is a disease present worldwide, which presents a number of health problems. Recently, thiazolidinedione (TZD) has been used as a therapy for lipid disorders. The present study demonstrates the potential of TZD as a treatment for hepatosteatosis and its mechanism of action, particularly focusing on its role in lipid metabolism. A total of 60 (80-90 g) rats were divided into three groups: A normal group with a standard diet, a high-fat, high-carbohydrate diet (HFCD) group or a HFCD+TZD group (n=20/group). The HFCD induced hepatosteatosis over a period of 12 weeks and the HFCD+TZD group were administered TZD in weeks 13-16. Blood and tissue samples were collected to measure hepatic function, the lipid profile, metabolism and hormone biomarkers, including serum triglyceride (TG), lipoprotein lipase (LPL), stearoyl-CoA desaturase (SCD-1), leptin and resistin. The HFCD-fed rats exhibited a significant increase in serum TG, total cholesterol, low-density lipoproteins, alanine transaminase and bilirubin compared with the normal group as well as a significant decrease in high-density lipoprotein. In addition, serum leptin and resistin were significantly elevated in the HFCD group compared with the normal group. The administration of TZD significantly increased SCD-1 activity and significantly inhibited LPL activity. It also attenuated the changes in the lipid profiles and normalized serum leptin and resistin levels. The results of the present study indicated that HFCD induced lipid abnormalities associated with hypertriglyceridemia, hypercholesterolemia and hepatosteatosis. These changes resulted from disruption to leptin and resistin, which may be due to alterations in LPL and SCD-1 activity. TZD mitigated the effects of HFCD-induced hepatosteatosis, indicating a possible regulatory effect of TZD in the development of hepatosteatosis. The authors suggest that the manipulation of SCD-1 and lipase by TZD may be useful as a treatment for hepatosteatosis.
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Affiliation(s)
- Hessah Mohammed Al-Muzafar
- Department of Chemistry and Biochemistry, College of Science, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Kamal Adel Amin
- Department of Chemistry and Biochemistry, College of Science, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
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Hao T, Zhang H, Li S, Tian H. Glucagon-like peptide 1 receptor agonist ameliorates the insulin resistance function of islet β cells via the activation of PDX-1/JAK signaling transduction in C57/BL6 mice with high-fat diet-induced diabetes. Int J Mol Med 2017; 39:1029-1036. [PMID: 28290604 DOI: 10.3892/ijmm.2017.2910] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 02/21/2017] [Indexed: 11/05/2022] Open
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15
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Drąg J, Goździalska A, Knapik-Czajka M, Gawędzka A, Gawlik K, Jaśkiewicz J. Effect of high carbohydrate diet on elongase and desaturase activity and accompanying gene expression in rat's liver. GENES AND NUTRITION 2017; 12:2. [PMID: 28138346 PMCID: PMC5264288 DOI: 10.1186/s12263-017-0551-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 10/14/2016] [Indexed: 01/15/2023]
Abstract
Background Hepatic fatty acids (FAs) are modified through different metabolic pathways including elongation and desaturation. These processes are catalyzed by elongases and desaturases, respectively. Glucose, by transcription factors, regulates these processes. The aim of the study was to evaluate the influence of high carbohydrate diet (68%) on the expression of elongase (Elovl-2, Elovl-5, and Elovl-6) and desaturase (∆5D, ∆6D, Scd 1, Scd 2) genes and the activity of the enzymes. The changes in serum lipid profile (triglycerides (TG), total cholesterol (TC), HDL cholesterol) and glucose concentration were measured. Male Wistar rats were randomized into two study groups: animals fed with high carbohydrate diet (n = 6; HiCHO) and a control group fed with a standard diet (n = 6; ST). The expression of mRNA was determinate using reverse transcription PCR (RT-PCR). Hepatic FA composition was determined by gas chromatography, and FA ratios were used to estimate the activity of enzymes. Serum lipid profile and glucose concentration were measured using spectrophotometric methods. Results The mean values of transcript expression of all examined elongases and desaturases in liver HiCHO rats were higher as compared to ST. Higher expression did not always correspond to higher activity (as index). More monounsaturated FAs (MUFAs) were detected in the liver of HiCHO rats as compared to ST. Serum TG level was higher in the HiCHO than in ST. Conclusions These studies support the notion that the regulation of both Elovl and desaturase expression may play an important role in managing hepatic lipid composition in response to changes in dietary status.
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Affiliation(s)
- Jagoda Drąg
- Department of Analytical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland.,Andrzej Frycz Modrzewski Krakow University, 1 G. Herlinga-Grudzińskiego St., 30-705 Krakow, Poland
| | - Anna Goździalska
- Faculty of Health and Medical Sciences, Andrzej Frycz Modrzewski Krakow University, Krakow, Poland
| | - Małgorzata Knapik-Czajka
- Department of Analytical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Anna Gawędzka
- Department of Analytical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Katarzyna Gawlik
- Department of Diagnostics, Chair of Clinical Biochemistry, Jagiellonian University Medical College, Krakow, Poland
| | - Jerzy Jaśkiewicz
- Faculty of Health and Medical Sciences, Andrzej Frycz Modrzewski Krakow University, Krakow, Poland
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Masur F, Benesch F, Pfannkuche H, Fuhrmann H, Gäbel G. Conjugated linoleic acids influence fatty acid metabolism in ovine ruminal epithelial cells. J Dairy Sci 2016; 99:3081-3095. [PMID: 26830749 DOI: 10.3168/jds.2015-10042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 12/11/2015] [Indexed: 12/31/2022]
Abstract
Conjugated linoleic acids (CLA), particularly cis-9,trans-11 (c9t11) and trans-10,cis-12 (t10c12), are used as feed additives to adapt to constantly increasing demands on the performance of lactating cows. Under these feeding conditions, the rumen wall, and the rumen epithelial cells (REC) in particular, are directly exposed to high amounts of CLA. This study determined the effect of CLA on the fatty acid (FA) metabolism of REC and expression of genes known to be modulated by FA. Cultured REC were incubated with c9t11, t10c12, and the structurally similar FA linoleic acid (LA), oleic acid (OA), and trans-vaccenic acid (TVA) for 48 h at a concentration of 100 µM. Cellular FA levels were determined by gas chromatography. Messenger RNA expression levels of stearoyl-CoA desaturase (SCD) and monocarboxylate transporter (MCT) 1 and 4 were quantified by reverse transcription-quantitative PCR. Fatty acid evaluation revealed significant effects of CLA, LA, OA, and TVA on the amount of FA metabolites of β-oxidation and elongation and of metabolites related to desaturation by SCD. The observed changes in FA content point (among others) to the ability of REC to synthesize c9t11 from TVA endogenously. The mRNA expression levels of SCD identified a decrease after CLA, LA, OA, or TVA treatment. In line with the changes in mRNA expression, we found reduced amounts of C16:1n-7 cis-9 and C18:1n-9 cis-9, the main products of SCD. The expression of MCT1 mRNA increased after c9t11 and t10c12 treatment, and CLA c9t11 induced an upregulation of MCT4. Application of peroxisome proliferator-activated receptor (PPAR) α antagonist suggested that activation of PPARα is involved in the changes of MCT1, MCT4, and SCD mRNA expression induced by c9t11. Participation of PPARγ in the changes of MCT1 and SCD mRNA expression was shown by the application of the respective antagonist. The study demonstrates that exposure to CLA affects both FA metabolism and regulatory pathways within REC.
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Affiliation(s)
- F Masur
- Institute of Veterinary Physiology, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, 04103, Germany.
| | - F Benesch
- Institute of Veterinary Physiology, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, 04103, Germany
| | - H Pfannkuche
- Institute of Veterinary Physiology, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, 04103, Germany
| | - H Fuhrmann
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, 04103, Germany
| | - G Gäbel
- Institute of Veterinary Physiology, Faculty of Veterinary Medicine, University of Leipzig, Leipzig, 04103, Germany
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Picklo MJ, Murphy EJ. A High-Fat, High-Oleic Diet, But Not a High-Fat, Saturated Diet, Reduces Hepatic α-Linolenic Acid and Eicosapentaenoic Acid Content in Mice. Lipids 2015; 51:537-47. [DOI: 10.1007/s11745-015-4106-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 11/20/2015] [Indexed: 10/22/2022]
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Mika A, Kaska L, Korczynska J, Mirowska A, Stepnowski P, Proczko M, Ratnicki-Sklucki K, Goyke E, Sledzinski T. Visceral and subcutaneous adipose tissue stearoyl-CoA desaturase-1 mRNA levels and fatty acid desaturation index positively correlate with BMI in morbidly obese women. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400372] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Adriana Mika
- Department of Lipid Biochemistry, Institute of Biochemistry and Biophysics; Polish Academy of Sciences; Warsaw Poland
- Department of Environmental Analysis, Faculty of Chemistry; University of Gdansk; Gdansk Poland
| | - Lukasz Kaska
- Department of General, Endocrine and Transplant Surgery; Medical University of Gdansk; Gdansk Poland
| | - Justyna Korczynska
- Department of Pharmaceutical Biochemistry; Medical University of Gdansk; Gdansk Poland
| | - Agnieszka Mirowska
- Department of Pharmaceutical Biochemistry; Medical University of Gdansk; Gdansk Poland
| | - Piotr Stepnowski
- Department of Environmental Analysis, Faculty of Chemistry; University of Gdansk; Gdansk Poland
| | - Monika Proczko
- Department of General, Endocrine and Transplant Surgery; Medical University of Gdansk; Gdansk Poland
| | | | - Elzbieta Goyke
- Department of Biochemistry; Medical University of Gdansk; Gdansk Poland
| | - Tomasz Sledzinski
- Department of Pharmaceutical Biochemistry; Medical University of Gdansk; Gdansk Poland
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Hariri M, Ghiasvand R, Shiranian A, Askari G, Iraj B, Salehi-Abargouei A. Does omega-3 fatty acids supplementation affect circulating leptin levels? A systematic review and meta-analysis on randomized controlled clinical trials. Clin Endocrinol (Oxf) 2015; 82:221-8. [PMID: 24862919 DOI: 10.1111/cen.12508] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 04/05/2014] [Accepted: 05/16/2014] [Indexed: 01/05/2023]
Abstract
BACKGROUND Omega-3 fatty acids have attracted researchers for their effect on circulatory hormone-like peptides affecting weight control. OBJECTIVE Our objective was to conduct a systematic review and meta-analysis on randomized controlled trials (RCTs) assessed the effects of omega-3 supplementation on serum leptin concentration and to find the possible sources of heterogeneity in their results. METHODS We searched PubMed/Medline, Google Scholar, Ovid, SCOPUS and ISI web of science up to April 2014. RCTs conducted among human adults, examined the effect of omega-3 fatty acid supplements on serum leptin concentrations as an outcome variable were included. The mean difference and standard deviation (SD) of changes in serum leptin levels were used as effect size for the meta-analysis. Summary mean estimates with their corresponding SDs were derived using random effects model. RESULTS Totally 14 RCTs were eligible to be included in the systematic review, and the meta-analysis was performed on 13 articles. Our analysis showed that omega-3 supplementation significantly reduces leptin levels (mean difference (MD) = -1·71 ng/ml 95% confidence interval (CI): -3·17 to -0·24, P = 0·022). Subgroup analysis based on BMI status showed that the omega-3 supplementation reduces leptin when used for nonobese subjects (MD = -3·60 ng/ml; 95% CI -6·23 to -0·90; P = 0·011); however, this was not true for obese participants (MD = -0·86 ng/ml; 95% CI: -2·63 to -0·90; P = 0·296). Subgroup analysis based on omega-3 source also showed that omega-3 from marine sources may significantly reduce leptin levels (MD = -1·73 ng/ml; 95% CI -3·25 to -0·2; P = 0·026), but plant sources do not significantly affect serum leptin levels (MD = -1·48 ng/ml; 95% CI -6·78 to 3·23; P = 0·585). Our results were highly sensitive to one study. CONCLUSIONS Omega-3 supplementation might moderately decrease circulatory leptin levels only among nonobese adults. RCTs with longer follow-up period, using higher doses for obese adults and exploring the effect in different genders, are needed to replicate our results.
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Affiliation(s)
- Mitra Hariri
- Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran; Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
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Onopchenko OV, Kosiakova GV, Oz M, Klimashevsky VM, Gula NM. N-Stearoylethanolamine Restores Pancreas Lipid Composition in Obesity-Induced Insulin Resistant Rats. Lipids 2014; 50:13-21. [DOI: 10.1007/s11745-014-3960-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Accepted: 09/29/2014] [Indexed: 12/11/2022]
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Ochiai M, Kuroda T, Matsuo T. Increased muscular triglyceride content and hyperglycemia in Goto-Kakizaki rat are decreased by egg white hydrolysate. Int J Food Sci Nutr 2014; 65:495-501. [DOI: 10.3109/09637486.2013.879288] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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