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Burchat N, Vidola J, Pfreundschuh S, Sharma P, Rizzolo D, Guo GL, Sampath H. Intestinal stearoyl-CoA desaturase-1 regulates energy balance via alterations in bile acid homeostasis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.12.575400. [PMID: 38260602 PMCID: PMC10802577 DOI: 10.1101/2024.01.12.575400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Background and Aims Stearoyl-CoA desaturase-1 (SCD1) converts saturated fatty acids into monounsaturated fatty acids and plays an important regulatory role in lipid metabolism. Previous studies have demonstrated that mice deficient in SCD1 are protected from diet-induced obesity and hepatic steatosis due to altered lipid esterification and increased energy expenditure. Previous studies in our lab have shown that intestinal SCD1 modulates intestinal and plasma lipids and alters cholesterol metabolism. Here we investigated a novel role for intestinal SCD1 in the regulation of systemic energy balance. Methods To interrogate the role of intestinal SCD1 in modulating whole body metabolism, intestine-specific Scd1 knockout (iKO) mice were maintained on standard chow diet or challenged with a high-fat diet (HFD). Studies included analyses of bile acid content and composition, metabolic phenotyping including body composition, indirect calorimetry, glucose tolerance analyses, and assessment of bile acid signaling pathways. Results iKO mice displayed elevated plasma and hepatic bile acid content and decreased fecal bile acid excretion, associated with increased expression of the ileal bile acid uptake transporter, Asbt . These increases were associated with increased expression of TGR5 targets, including Dio2 in brown adipose tissue and elevated plasma glucagon-like peptide-1 levels. Upon HFD challenge, iKO mice had reduced metabolic efficiency apparent through decreased weight gain despite higher food intake. Concomitantly, energy expenditure was increased, and glucose tolerance was improved in HFD-fed iKO mice. Conclusion Our results indicate that deletion of intestinal SCD1 has significant impacts on bile acid metabolism and whole-body energy balance, likely via activation of TGR5.
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Hou X, Zhang R, Yang M, Niu N, Zong W, Yang L, Li H, Hou R, Wang X, Wang L, Liu X, Shi L, Zhao F, Wang L, Zhang L. Characteristics of Transcriptome and Metabolome Concerning Intramuscular Fat Content in Beijing Black Pigs. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:15874-15883. [PMID: 37847170 DOI: 10.1021/acs.jafc.3c02669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
To study the characteristics of genes and metabolites related to intramuscular fat (IMF) content with less influence by breed background and individual differences, the skeletal muscle samples from 40 Beijing black pigs with either high or low IMF content were used to perform transcriptome and metabolome analyses. About 99 genes (twofold-change) were differentially expressed. Up-regulated genes in the high IMF pigs were mainly related to fat metabolism. The key genes in charge of IMF deposition are ADIPOQ, CIDEC, CYP4B1, DGAT2, LEP, OPRL1, PLIN1, SCD, and THRSP. KLHL40, TRAFD1, and HSPA6 were novel candidate genes for the IMF trait due to their high abundances. In the low IMF pigs, the differentially expressed genes involved in virus resistance were up-regulated. About 16 and 18 differential metabolites (1.5 fold-change) were obtained in the positive and negative modes, respectively. Pigs with low IMF had weaker fatty acid oxidation due to the down-regulation of various carnitines. Differentially expressed genes were more important in determining IMF deposition than differential metabolites because relatively few differential metabolites were obtained, and they were merely the products under the physiological status of diverged IMF content. This study provided valuable information for further studies on IMF deposition.
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Affiliation(s)
- Xinhua Hou
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Run Zhang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Man Yang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Naiqi Niu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Wencheng Zong
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Liyu Yang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Huihui Li
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Renda Hou
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xiaoqing Wang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Ligang Wang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Xin Liu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Lijun Shi
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Fuping Zhao
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Lixian Wang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Longchao Zhang
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
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Ntambi JM, Stover PJ. A Conversation with James Ntambi. Annu Rev Nutr 2023; 43:1-23. [PMID: 37253680 DOI: 10.1146/annurev-nutr-061021-020321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
An interview with James M. Ntambi, professor of biochemistry and the Katherine Berns Van Donk Steenbock Professor in Nutrition, College of Agricultural and Life Sciences, at the University of Wisconsin-Madison, took place via Zoom in April 2022. He was interviewed by Patrick J. Stover, director of the Institute for Advancing Health through Agriculture and professor of nutrition and biochemistry and biophysics at Texas A&M University. Dr. James Ntambi is a true pioneer in the field of nutritional biochemistry. He was among the very first to discover and elucidate the role that diet and nutrients play in regulating metabolism through changes in the expression of metabolic genes, focusing on the de novo lipogenesis pathways. As an African immigrant from Uganda, his love of science and his life experiences in African communities suffering from severe malnutrition molded his scientific interests at the interface of biochemistry and nutrition. Throughout his career, he has been an academic role model, a groundbreaking nutrition scientist, and an educator. His commitment to experiential learning through the many study-abroad classes he has hosted in Uganda has provided invaluable context for American students in nutrition. Dr. Ntambi's passion for education and scientific discovery is his legacy, and the field of nutrition has benefited enormously from his unique perspectives and contributions to science that are defined by his scientific curiosity, his generosity to his students and colleagues, and his life experiences. The following is an edited transcript.
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Affiliation(s)
- James M Ntambi
- Departments of Biochemistry and Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA;
| | - Patrick J Stover
- College of Agriculture and Life Sciences, Texas A&M University, College Station, Texas, USA
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Shi N, Sun K, Tang H, Mao J. The impact and role of identified long noncoding RNAs in nonalcoholic fatty liver disease: A narrative review. J Clin Lab Anal 2023; 37:e24943. [PMID: 37435630 PMCID: PMC10431402 DOI: 10.1002/jcla.24943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/07/2023] [Accepted: 07/02/2023] [Indexed: 07/13/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease worldwide, but its mechanism and pathophysiology remain unclear. Long noncoding RNAs (lncRNAs) may exert a vital influence on regulating various biological functions in NAFLD. METHODS The databases such as Google Scholar, PubMed, and Medline were searched using the following keywords: nonalcoholic fatty liver disease, nonalcoholic fatty liver disease, NAFLD, nonalcoholic steatohepatitis, nonalcoholic steatohepatitis, NASH, long noncoding RNAs, and lncRNAs. Considering the titles and abstracts, unrelated studies were excluded. The authors evaluated the full texts of the remaining studies. RESULTS We summarized the current knowledge of lncRNAs and the main signaling pathways of lncRNAs involved in NAFLD explored in recent years. As a heterogeneous group of noncoding RNAs (ncRNAs), lncRNAs play crucial roles in biological processes underlying the pathophysiology of NAFLD. The mechanisms, particularly those associated with the regulation of the expression and activities of lncRNAs, play important roles in NAFLD. CONCLUSION A better comprehension of the mechanism controlled by lncRNAs in NAFLD is necessary for the identification of novel therapeutic targets for drug development and improved, noninvasive methods for diagnosis.
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Affiliation(s)
- Na Shi
- Department of GastroenterologyFirst Affiliated Hospital of Dalian Medical UniversityDalianChina
- Department of Internal MedicineThe Third People's Hospital of ChengduChengduChina
| | - Kang Sun
- Department of GastroenterologyFirst Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Haiying Tang
- Department of Respiratory and Critical Care MedicineFirst Affiliated Hospital of Dalian Medical UniversityDalianChina
| | - Jingwei Mao
- Department of GastroenterologyFirst Affiliated Hospital of Dalian Medical UniversityDalianChina
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Chu DT, Bui NL, Le NH. Adrenoceptors and SCD1 in adipocytes/adipose tissues: The expression and variation in health and obesity. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 194:311-332. [PMID: 36631196 DOI: 10.1016/bs.pmbts.2022.06.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Obesity, considered a metabolic disorder, is one of the most significant health issues that the community has to cope with today. A rising number of studies have been conducted to find out promising genetic targets for obese treatment. The sympathetic nervous system was proven to possess remarkable roles in energy metabolism, including the stimulation of lipolysis as well as thermogenesis, via distinct adrenoceptors appearing on the membrane of adipocyte. A decrease of β-adrenoceptor expression has been observed in obese individuals, which is related to reducing energy expenditure and developing obesity. While that the deficiency of stearoyl-CoA desaturase-1 (SCD1), which is a promising target for treatments of metabolic diseases, decreases oxidation and promotes the synthesis of fatty acids. Here, we emphasized several differences between distinct adrenoceptor subtypes, including their mRNA expression level and function in white adipose tissue and brown adipose tissue. We also highlighted SCD1's roles related to the progression of adipocytes and its changing expression under the obese condition in both rodents and humans, and furthermore, tried to figure out the interaction between adrenoceptors and SCD1 in adipose tissue.
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Affiliation(s)
- Dinh-Toi Chu
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Vietnam; Faculty of Applied Sciences, International School, Vietnam National University, Hanoi, Vietnam.
| | - Nhat-Le Bui
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Vietnam; Faculty of Applied Sciences, International School, Vietnam National University, Hanoi, Vietnam
| | - Ngoc Hoan Le
- Faculty of Biology, Hanoi National University of Education, Hanoi, Vietnam
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Ntambi JM. The role of Stearoyl-CoA desaturase in hepatic de novo lipogenesis. Biochem Biophys Res Commun 2022; 633:81-83. [DOI: 10.1016/j.bbrc.2022.08.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 08/30/2022] [Indexed: 11/06/2022]
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SCD1 is nutritionally and spatially regulated in the intestine and influences systemic postprandial lipid homeostasis and gut-liver crosstalk. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159195. [PMID: 35718096 DOI: 10.1016/j.bbalip.2022.159195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 04/21/2022] [Accepted: 06/01/2022] [Indexed: 01/27/2023]
Abstract
Stearoyl-CoA desaturase-1 is an endoplasmic reticulum (ER)-membrane resident protein that inserts a double bond into saturated fatty acids, converting them into their monounsaturated counterparts. Previous studies have demonstrated an important role for SCD1 in modulating tissue and systemic health. Specifically, lack of hepatic or cutaneous SCD1 results in significant reductions in tissue esterified lipids. While the intestine is an important site of lipid esterification and assimilation into the body, the regulation of intestinal SCD1 or its impact on lipid composition in the intestine and other tissues has not been investigated. Here we report that unlike other lipogenic enzymes, SCD1 is enriched in the distal small intestine and in the colon of chow-fed mice and is robustly upregulated by acute refeeding of a high-sucrose diet. We generated a mouse model lacking SCD1 specifically in the intestine (iKO mice). These mice have significant reductions not only in intestinal lipids, but also in plasma triacylglycerols, diacylglycerols, cholesterol esters, and free cholesterol. Additionally, hepatic accumulation of diacylglycerols is significantly reduced in iKO mice. Comprehensive targeted lipidomic profiling revealed a consistent reduction in the myristoleic (14:1) to myristic (14:0) acid ratios in intestine, liver, and plasma of iKO mice. Consistent with the reduction of the monounsaturated fatty acid myristoleic acid in hepatic lipids of chow fed iKO mice, hepatic expression of Pgc-1α, Sirt1, and related fatty acid oxidation genes were reduced in chow-fed iKO mice. Further, lack of intestinal SCD1 reduced expression of de novo lipogenic genes in distal intestine of chow-fed mice and in the livers of mice fed a lipogenic high-sucrose diet. Taken together, these studies reveal a novel pattern of expression of SCD1 in the intestine. They also demonstrate that intestinal SCD1 modulates lipid content and composition of not only intestinal tissues, but also that of plasma and liver. Further, these data point to intestinal SCD1 as a modulator of gut-liver crosstalk, potentially through the production of novel signaling lipids such as myristoleic acid. These data have important implications to understanding how intestinal SCD1 may modulate risk for post-prandial lipemia, hepatic steatosis, and related pathologies.
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Xie K, Liu Y, Li X, Zhang H, Zhang S, Mak HY, Liu P. Dietary S. maltophilia induces supersized lipid droplets by enhancing lipogenesis and ER-LD contacts in C. elegans. Gut Microbes 2022; 14:2013762. [PMID: 35112996 PMCID: PMC8816401 DOI: 10.1080/19490976.2021.2013762] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Dietary and symbiotic bacteria can exert powerful influence on metazoan lipid metabolism. Recent studies have emerged that microbiota have a role in animal obesity and related health disorders, but the mechanisms by which bacteria influence lipid storage in their host are unknown. To reduce the complexity of the relationship between gut microbiota and the host, Caenorhabditis elegans (C. elegans) has been chosen as a model organism to study interspecies interaction. Here, we demonstrate that feeding C. elegans with an opportunistic pathogenic bacterium Stenotrophomonas maltophilia (S. maltophilia) retards growth and promotes excessive neutral lipid storage. Gene expression analysis reveals that dietary S. maltophilia induces a lipogenic transcriptional response that includes the SREBP ortholog SBP-1, and fatty acid desaturases FAT-6 and FAT-7. Live imaging and ultrastructural analysis suggest that excess neutral lipid is stored in greatly expanded lipid droplets (LDs), as a result of enhanced endoplasmic reticulum (ER)-LD interaction. We also report that loss of function mutations in dpy-9 in C. elegans confers resistance to S. maltophilia. Dietary S. maltophilia induces supersized LDs by enhancing lipogenesis and ER-LD contacts in C. elegans. This work delineates a new model for understanding microbial regulation of metazoan physiology.
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Affiliation(s)
- Kang Xie
- National Laboratory of Biomacromolecules, Cas Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences, Beijing, China
| | - Yangli Liu
- National Laboratory of Biomacromolecules, Cas Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences, Beijing, China
| | - Xixia Li
- National Laboratory of Biomacromolecules, Cas Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Hong Zhang
- National Laboratory of Biomacromolecules, Cas Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences, Beijing, China
| | - Shuyan Zhang
- National Laboratory of Biomacromolecules, Cas Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Ho Yi Mak
- Division of Life Science, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Pingsheng Liu
- National Laboratory of Biomacromolecules, Cas Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences, Beijing, China,CONTACT Pingsheng Liu National Laboratory of Biomacromolecules, Cas Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing100101, China
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Emerging Roles of Non-Coding RNAs in the Feed Efficiency of Livestock Species. Genes (Basel) 2022; 13:genes13020297. [PMID: 35205343 PMCID: PMC8872339 DOI: 10.3390/genes13020297] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/27/2022] [Accepted: 01/31/2022] [Indexed: 01/27/2023] Open
Abstract
A global population of already more than seven billion people has led to an increased demand for food and water, and especially the demand for meat. Moreover, the cost of feed used in animal production has also increased dramatically, which requires animal breeders to find alternatives to reduce feed consumption. Understanding the biology underlying feed efficiency (FE) allows for a better selection of feed-efficient animals. Non-coding RNAs (ncRNAs), especially micro RNAs (miRNAs) and long non-coding RNAs (lncRNAs), play important roles in the regulation of bio-logical processes and disease development. The functions of ncRNAs in the biology of FE have emerged as they participate in the regulation of many genes and pathways related to the major FE indicators, such as residual feed intake and feed conversion ratio. This review provides the state of the art studies related to the ncRNAs associated with FE in livestock species. The contribution of ncRNAs to FE in the liver, muscle, and adipose tissues were summarized. The research gap of the function of ncRNAs in key processes for improved FE, such as the nutrition, heat stress, and gut–brain axis, was examined. Finally, the potential uses of ncRNAs for the improvement of FE were discussed.
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Identification of Scd5 as a functional regulator of visceral fat deposition and distribution. iScience 2022; 25:103916. [PMID: 35252813 PMCID: PMC8889148 DOI: 10.1016/j.isci.2022.103916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 12/24/2021] [Accepted: 02/09/2022] [Indexed: 11/20/2022] Open
Abstract
Ectopic deposition of visceral adipose tissue (VAT) in abdomen is usually accompanied with systematic chaos of energy metabolism, a higher risk of cardiovascular diseases and type II diabetes. Here, we identified a previously unexplored gene Scd5 as a master regulator of fat distribution, which alone plays a significant role in determining the VAT accumulation. Firstly, zebrafish scd5 had the highest homology with human SCD5 compared to other SCDs in mouse and rat. We then observed that scd5-homozygous mutant zebrafish displayed a puffy, short and rounded apple-shaped figure. Whole-mount micro-CT scan showed that excessive VAT deposition and short spine are responsible for the abnormal body ratio. And the supplementation of ω3-polyunsaturated fatty acid (ω3-PUFA) in dietary significantly decreased VAT accumulation in scd5−/− zebrafish. Lastly, transcriptional analyses revealed that the Wnt, PPAR, C/EBP, and fat synthesis signaling pathways are significantly affected in the VAT of scd5−/− mutant and restored by ω3-PUFA. Zebrafish scd5 is a better match of homolog to human SCD5 scd5 deficiency induced significant VAT depositions in zebrafish Supplementation of ω3-PUFA significantly reduced the VAT deposition in scd5 mutants
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Tuthill II BF, Quaglia CJ, O'Hara E, Musselman LP. Loss of Stearoyl-CoA desaturase 1 leads to cardiac dysfunction and lipotoxicity. J Exp Biol 2021; 224:jeb240432. [PMID: 34423827 PMCID: PMC8502255 DOI: 10.1242/jeb.240432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 08/16/2021] [Indexed: 12/28/2022]
Abstract
Diets high in carbohydrates are associated with type 2 diabetes and its co-morbidities, including hyperglycemia, hyperlipidemia, obesity, hepatic steatosis and cardiovascular disease. We used a high-sugar diet to study the pathophysiology of diet-induced metabolic disease in Drosophila melanogaster. High-sugar diets produce hyperglycemia, obesity, insulin resistance and cardiomyopathy in flies, along with ectopic accumulation of toxic lipids, or lipotoxicity. Stearoyl-CoA desaturase 1 is an enzyme that contributes to long-chain fatty acid metabolism by introducing a double bond into the acyl chain. Knockdown of stearoyl-CoA desaturase 1 in the fat body reduced lipogenesis and exacerbated pathophysiology in flies reared on high-sucrose diets. These flies exhibited dyslipidemia and growth deficiency in addition to defects in cardiac and gut function. We assessed the lipidome of these flies using tandem mass spectrometry to provide insight into the relationship between potentially lipotoxic species and type 2 diabetes-like pathophysiology. Oleic acid supplementation is able to rescue a variety of phenotypes produced by stearoyl-CoA desaturase 1 RNAi, including fly mass, triglyceride storage, gut development and cardiac failure. Taken together, these data suggest a protective role for monounsaturated fatty acids in diet-induced metabolic disease phenotypes.
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Di Mauro S, Salomone F, Scamporrino A, Filippello A, Morisco F, Guido M, Lembo V, Cossiga V, Pipitone RM, Grimaudo S, Malaguarnera R, Purrello F, Piro S. Coffee Restores Expression of lncRNAs Involved in Steatosis and Fibrosis in a Mouse Model of NAFLD. Nutrients 2021; 13:nu13092952. [PMID: 34578828 PMCID: PMC8467439 DOI: 10.3390/nu13092952] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/20/2021] [Accepted: 08/22/2021] [Indexed: 12/31/2022] Open
Abstract
Background and aim: Coffee intake exerts protective effects against non-alcoholic fatty liver disease (NAFLD), although without fully cleared mechanisms. In this study we aimed to assess whether coffee consumption may influence the expression of long non-coding RNAs (lncRNAs) in the liver. Methods: C57BL/6J mice were fed a 12-week standard diet (SD), high-fat diet (HFD) or HFD plus decaffeinated coffee solution (HFD + coffee). Expression of specific lncRNAs involved in NAFLD was analyzed by real-time PCR. For the most differentially expressed lncRNAs, the analysis was also extended to their mRNA targets. Results: Decaffeinated coffee intake reduced body weight gain, prevented NAFLD, lowered hyperglycemia and hypercholesterolemia. NAFLD was associated with lower hepatic expression of Gm16551, a lncRNA inhibiting de novo lipogenesis, and higher expression of H19, a lncRNA promoting fibrogenesis. Coffee intake restored Gm16551 to levels observed in lean mice and downregulated gene expression of its targets acetyl coenzyme A carboxylase 1 and stearoyl coenzyme A desaturase 1. Furthermore, coffee consumption markedly decreased hepatic expression of H19 and of its target gene collagen alpha-1(I) chain; consistently, in mice fed HFD + coffee liver expression of αSMA protein returned to levels of mice fed SD. Expression of lncRNA involved in circadian clock such as fatty liver-related lncRNA 1 (FLRL1) and fatty liver-related lncRNA 2 (FLRL2) were upregulated by HFD and were also modulated by coffee intake. Conclusion. Hepatoprotective effects of coffee may be depending on the modulation of lncRNAs involved in key pathways of NAFLD onset and progression.
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Affiliation(s)
- Stefania Di Mauro
- Department of Clinical and Experimental Medicine, University of Catania, 95122 Catania, Italy; (S.D.M.); (A.S.); (A.F.); (S.P.)
| | - Federico Salomone
- Division of Gastroenterology, Ospedale di Acireale, Azienda Sanitaria Provinciale di Catania, 95024 Catania, Italy;
| | - Alessandra Scamporrino
- Department of Clinical and Experimental Medicine, University of Catania, 95122 Catania, Italy; (S.D.M.); (A.S.); (A.F.); (S.P.)
| | - Agnese Filippello
- Department of Clinical and Experimental Medicine, University of Catania, 95122 Catania, Italy; (S.D.M.); (A.S.); (A.F.); (S.P.)
| | - Filomena Morisco
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80125 Naples, Italy; (F.M.); (V.L.); (V.C.)
| | - Maria Guido
- Department of Medicine, University of Padua, 35121 Padua, Italy;
| | - Vincenzo Lembo
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80125 Naples, Italy; (F.M.); (V.L.); (V.C.)
| | - Valentina Cossiga
- Department of Clinical Medicine and Surgery, University of Naples “Federico II”, 80125 Naples, Italy; (F.M.); (V.L.); (V.C.)
| | | | - Stefania Grimaudo
- Department PROMISE, University of Palermo, 90128 Palermo, Italy; (R.M.P.); (S.G.)
| | | | - Francesco Purrello
- Department of Clinical and Experimental Medicine, University of Catania, 95122 Catania, Italy; (S.D.M.); (A.S.); (A.F.); (S.P.)
- Correspondence: ; Tel.: +39-095-759-8401
| | - Salvatore Piro
- Department of Clinical and Experimental Medicine, University of Catania, 95122 Catania, Italy; (S.D.M.); (A.S.); (A.F.); (S.P.)
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Wang NC, Bagheri M, Olszewski T, Friese KA, Smith HM, Robles ME, Wang C, Brooks A, Bordenstein SR, Ferguson JF, Silver HJ. New-onset vegetarian diet shows differences in fatty acid metabolites in European American and African American women. Nutr Metab Cardiovasc Dis 2021; 31:2436-2448. [PMID: 34176710 PMCID: PMC10317312 DOI: 10.1016/j.numecd.2021.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 05/12/2021] [Accepted: 05/13/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND AIMS The type of fat consumed in animal-based western diets, typically rich in the saturated fat palmitate, has been implicated in cardiometabolic disease risk. In contrast, the most abundant mono- and polyunsaturated fats, more typical in a vegetarian or plant-based diet, potentiate less deleterious effects. This study determined differences in plasma and urine metabolites when switching from omnivorous to vegetarian diet, including metabolites involved in fatty acid utilization. METHODS AND RESULTS A prospective cohort of 38 European (EA) and African American (AA) omnivorous females were matched by age (25.7 ± 5.3y) and BMI (22.4 ± 1.9 kg/m2). Pre-intervention samples were collected while subjects consumed habitual animal-based diet. Changes in metabolites were assessed by ultra-high-performance liquid chromatography-tandem mass spectroscopy (Metabolon, Inc.) upon completing four days of novel vegetarian diet provided by the Vanderbilt Metabolic Kitchen. Changes in several diet-derived metabolites were observed, including increases in compounds derived from soy food metabolism along with decreases in metabolites of xanthine and histidine. Significant changes occurred in metabolites of saturated, monounsaturated and polyunsaturated fatty acids along with significant differences between EA and AA women in changes in plasma concentrations of acylcarnitines, which reflect the completeness of fatty acid oxidation (versus storage). CONCLUSION These data suggest improvements in fatty acid metabolism (oxidation vs storage), a key factor in energy homeostasis, may be promoted rapidly by adoption of a vegetarian (plant-based) diet. Mechanistic differences in response to diet interventions must be understood to effectively provide protection against the widespread development of obesity and cardiometabolic disease in population subgroups, such as AA women.
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Affiliation(s)
- Naomi C Wang
- Vanderbilt University Medical Center, Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, USA
| | - Minoo Bagheri
- Vanderbilt University Medical Center, Department of Medicine, Division of Cardiology Medicine, USA
| | - Timothy Olszewski
- Vanderbilt University Medical Center, Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, USA
| | | | - Holly M Smith
- Vanderbilt University Medical Center, Department of Medicine, Division of Cardiology Medicine, USA
| | - Michelle E Robles
- Vanderbilt University Medical Center, Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, USA
| | - Chuan Wang
- Vanderbilt University Medical Center, Department of Medicine, Division of Cardiology Medicine, USA
| | - Andrew Brooks
- Stanford University, School of Medicine, Department of Genetics, USA
| | - Seth R Bordenstein
- Vanderbilt University, College of Arts and Sciences, Department of Biological Sciences, USA
| | - Jane F Ferguson
- Vanderbilt University Medical Center, Department of Medicine, Division of Cardiology Medicine, USA
| | - Heidi J Silver
- Vanderbilt University Medical Center, Department of Medicine, Division of Gastroenterology, Hepatology and Nutrition, USA; Department of Veterans Affairs, Tennessee Valley Healthcare System, Nashville, USA.
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14
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Walker RE, Parkhomenko V, Ying Y, Urrutia N, Harvatine KJ. Dietary SFAs and ω-6 Fatty Acids Alter Incorporation of ω-3 Fatty Acids into Milk Fat of Lactating CD-1 Mice and Tissues of Offspring. J Nutr 2021; 151:1834-1843. [PMID: 33982073 DOI: 10.1093/jn/nxab094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/13/2021] [Accepted: 03/15/2021] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Methods to increase the amount of omega-3 (n-3) PUFAs in milk are desirable for neonatal health. The n-3 PUFA, α-linolenic acid (18:3n-3), can be elongated to EPA (20:5n-3) and DHA (22:6n-3). n-6 PUFAs suppress tissue n-3 PUFA incorporation, but the effect of SFAs is not clear. OBJECTIVES In this study, we compared the effects of SFAs and n-6 PUFAs on n-3 PUFA incorporation into milk and tissues of lactating mice and tissues of their offspring. METHODS Female CD-1 mice were bred at 8 wk of age. All experimental diets included 3% flaxseed oil and were begun on day 8 of lactation: low-fat diet (LFD); high-SFA diet (SAT), with an additional 12% saturated oil; or high-linoleic-acid diet (HLA), with 12% high-linoleic-acid oil (% kcal, carbohydrates:fat:protein: LFD, 49:24:27; both SAT and HLA, 35:46:19; n = 5/treatment). After 5 d, pup stomach milk clot FA profiles, tissue FA profiles in dams and pups, and mammary and hepatic expression of lipid metabolism genes in dams were analyzed. Data were analyzed by ANOVA with treatment diet as a fixed effect. RESULTS Dams in all groups had similar total milk fat concentrations, but both SAT and HLA decreased the concentration of n-3 PUFAs (SAT: -23%; HLA: -31%) compared with LFD, and HLA increased milk n-6 FAs by 347% compared with SAT. SAT pups had n-3 PUFA tissue concentrations similar to LFD, but HLA pups had lower n-3 PUFAs than SAT pups in multiple tissues (liver, -32%; kidney, -29%; heart, -28%; muscle, -18%). Mammary expression of lipid metabolism genes was mostly unchanged, but hepatic expression of elongases and desaturases was decreased with SAT compared with LFD [elongation of very-long-chain fatty acid (Elov)5, -42%; Elov6, -64%; fatty acid desaturase (Fads)1, -33%; Fads2, -44%]. CONCLUSIONS HLA decreased n-3 PUFA concentrations across multiple pup tissues compared with SAT. This suggests that high dietary n-6 PUFAs suppress n-3 PUFA incorporation in neonates.
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Affiliation(s)
- Rachel E Walker
- Department of Animal Sciences, The Pennsylvania State University, University Park, PA, USA.,Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Valentina Parkhomenko
- Department of Animal Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Yun Ying
- Department of Animal Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Natalie Urrutia
- Department of Animal Sciences, The Pennsylvania State University, University Park, PA, USA
| | - Kevin J Harvatine
- Department of Animal Sciences, The Pennsylvania State University, University Park, PA, USA
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15
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Polymorphisms in the stearoyl-CoA desaturase gene modify blood glucose response to dietary oils varying in MUFA content in adults with obesity. Br J Nutr 2021; 127:503-512. [PMID: 33829984 DOI: 10.1017/s0007114521001264] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Diets varying in SFA and MUFA content can impact glycaemic control; however, whether underlying differences in genetic make-up can influence blood glucose responses to these dietary fatty acids is unknown. We examined the impact of dietary oils varying in SFA/MUFA content on changes in blood glucose levels (primary outcome) and whether these changes were modified by variants in the stearoyl-CoA desaturase (SCD) gene (secondary outcome). Obese men and women participating in the randomised, crossover, isoenergetic, controlled-feeding Canola Oil Multicenter Intervention Trial II consumed three dietary oils for 6 weeks, with washout periods of ˜6 weeks between each treatment. Diets studied included a high SFA/low MUFA Control oil (36·6 % SFA/28·2 % MUFA), a conventional canola oil (6·2 % SFA/63·1 % MUFA) and a high-oleic acid canola oil (5·8 % SFA/74·7 % MUFA). No differences in fasting blood glucose were observed following the consumption of the dietary oils. However, when stratified by SCD genotypes, significant SNP-by-treatment interactions on blood glucose response were found with additive models for rs1502593 (P = 0·01), rs3071 (P = 0·02) and rs522951 (P = 0·03). The interaction for rs3071 remained significant (P = 0·005) when analysed with a recessive model, where individuals carrying the CC genotype showed an increase (0·14 (sem 0·09) mmol/l) in blood glucose levels with the Control oil diet, but reductions in blood glucose with both MUFA oil diets. Individuals carrying the AA and AC genotypes experienced reductions in blood glucose in response to all three oils. These findings identify a potential new target for personalised nutrition approaches aimed at improving glycaemic control.
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16
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Berg J, Seyedsadjadi N, Grant R. Saturated Fatty Acid Intake Is Associated With Increased Inflammation, Conversion of Kynurenine to Tryptophan, and Delta-9 Desaturase Activity in Healthy Humans. Int J Tryptophan Res 2021; 13:1178646920981946. [PMID: 33414641 PMCID: PMC7750901 DOI: 10.1177/1178646920981946] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/25/2020] [Indexed: 01/12/2023] Open
Abstract
Saturated fat ingestion has previously been linked to increases in inflammation. However the relationship between saturated fatty acid (SFA) intake and the kynureine:tryptophan ratio ([Kyn]:[Trp]), a marker of inflammation, has not been previously investigated. This study evaluated in healthy, middle aged, individuals (men = 48, women = 52), potential relationships between SFA intake, red blood cell (RBC) membrane SFAs and monounsaturated fatty acids (MUFA), the [Kyn]:[Trp] ratio, C-reactive protein (CRP), TNF-α and Δ9 desaturase activity. [Kyn]:[Trp] was positively associated with increases in Total fat (P = .034) intake, including Total SFA (P = .029) and Total MUFA (P = .042) intakes. Unexpectedly the [Kyn]:[Trp] ratio was inversely associated with the percentage of Total SFA (P = .004) and positively associated with percentage of Total MUFA (P = .012) present in the RBC membrane. We found a positive association between Δ9 desaturase activity, responsible for the desaturation of a various SFAs to MUFAs, and [Kyn]:[Trp] (P = .008). [Kyn]:[Trp] was also positively associated with CRP (P = .044), however no significant relationship between [Kyn]:[Trp] and TNF-α was found. This study shows for the first time that SFA consumption increases inflammatory pathways linked to increased tryptophan to kynurenine conversion, even in healthy humans. Our data also suggests that SFA linked increases in inflammation occur concomitantly with an upregulation of Δ9 desaturase activity resulting in increased desaturation of SFA substrates to their MUFA derivatives.
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Affiliation(s)
- Jade Berg
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia
| | - Neda Seyedsadjadi
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, Australia
| | - Ross Grant
- Australasian Research Institute, Sydney Adventist Hospital, Sydney, Australia.,School of Medical Sciences, Faculty of Medicine, University of New South Wales, Sydney, Australia.,Sydney Adventist Hospital Clinical School, University of Sydney, Sydney, Australia
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17
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Ye S, Matthan NR, Lamon-Fava S, Aguilar GS, Turner JR, Walker ME, Chai Z, Lakshman S, Urban JF, Lichtenstein AH. Western and heart healthy dietary patterns differentially affect the expression of genes associated with lipid metabolism, interferon signaling and inflammation in the jejunum of Ossabaw pigs. J Nutr Biochem 2020; 90:108577. [PMID: 33388349 PMCID: PMC8982565 DOI: 10.1016/j.jnutbio.2020.108577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 12/13/2022]
Abstract
Diet quality and statin therapy are established modulators of coronary artery disease (CAD) progression, but their effect on the gastrointestinal tract and subsequent sequelae that could affect CAD progression are relatively unexplored. To address this gap, Ossabaw pigs (N = 32) were randomly assigned to receive isocaloric amounts of a Western-type diet (WD; high in saturated fat, refined carbohydrate, and cholesterol, and low in fiber) or a heart healthy-type diet (HHD; high in unsaturated fat, whole grains, fruits and vegetables, supplemented with fish oil, and low in cholesterol), with or without atorvastatin, for 6 months. At the end of the study, RNA sequencing with 100 base pair single end reads on NextSeq 500 platform was conducted in isolated pig jejunal mucosa. A two-factor edgeR analysis revealed that the dietary patterns resulted in three differentially expressed genes related to lipid metabolism (SCD, FADS1, and SQLE). The expression of these genes was associated with cardiometabolic risk factors and atherosclerotic lesion severity. Subsequent gene enrichment analysis indicated the WD, compared to the HHD, resulted in higher interferon signaling and inflammation, with some of these genes being significantly associated with serum TNF-α and/or hsCRP concentrations, but not atherosclerotic lesion severity. No significant effect of atorvastatin therapy on gene expression, nor its interaction with dietary patterns, was identified. In conclusion, Western and heart healthy-type dietary patterns differentially affect the expression of genes associated with lipid metabolism, interferon signaling, and inflammation in the jejunum of Ossabaw pigs.
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Affiliation(s)
- Shumao Ye
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Nirupa R Matthan
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Stefania Lamon-Fava
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA
| | - Gloria Solano Aguilar
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Jerrold R Turner
- Laboratory of Mucosal Barrier Pathobiology, Department of Pathology, Brigham and Woman's Hospital and Harvard Medical School, Boston, MA, USA
| | - Maura E Walker
- Section of Preventive Medicine and Epidemiology, Boston University School of Medicine, Boston, MA, USA
| | - Zhi Chai
- Intercollege Graduate Degree Program in Physiology, Department of Nutritional Science, Pennsylvania State University, University Park, PA, USA
| | - Sukla Lakshman
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Joseph F Urban
- USDA, ARS, Beltsville Human Nutrition Research Center, Diet Genomics and Immunology Laboratory, Beltsville, MD, USA
| | - Alice H Lichtenstein
- Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging; Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA, USA.
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18
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Hinds TD, Creeden JF, Gordon DM, Stec DF, Donald MC, Stec DE. Bilirubin Nanoparticles Reduce Diet-Induced Hepatic Steatosis, Improve Fat Utilization, and Increase Plasma β-Hydroxybutyrate. Front Pharmacol 2020; 11:594574. [PMID: 33390979 PMCID: PMC7775678 DOI: 10.3389/fphar.2020.594574] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 11/13/2020] [Indexed: 12/18/2022] Open
Abstract
The inverse relationship of plasma bilirubin levels with liver fat accumulation has prompted the possibility of bilirubin as a therapeutic for non-alcoholic fatty liver disease. Here, we used diet-induced obese mice with non-alcoholic fatty liver disease treated with pegylated bilirubin (bilirubin nanoparticles) or vehicle control to determine the impact on hepatic lipid accumulation. The bilirubin nanoparticles significantly reduced hepatic fat, triglyceride accumulation, de novo lipogenesis, and serum levels of liver dysfunction marker aspartate transaminase and ApoB100 containing very-low-density lipoprotein. The bilirubin nanoparticles improved liver function and activated the hepatic β-oxidation pathway by increasing PPARα and acyl-coenzyme A oxidase 1. The bilirubin nanoparticles also significantly elevated plasma levels of the ketone β-hydroxybutyrate and lowered liver fat accumulation. This study demonstrates that bilirubin nanoparticles induce hepatic fat utilization, raise plasma ketones, and reduce hepatic steatosis, opening new therapeutic avenues for NAFLD.
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Affiliation(s)
- Terry D Hinds
- Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, KY, United States
| | - Justin F Creeden
- Department of Neurosciences, University of Toledo College of Medicine, Toledo, OH, United States
| | - Darren M Gordon
- Department of Neurosciences, University of Toledo College of Medicine, Toledo, OH, United States
| | - Donald F Stec
- Small Molecule NMR Facility Core, Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, TN, United States
| | - Matthew C Donald
- Department of Physiology and Biophysics, Cardiorenal and Metabolic Diseases Research Center, University of Mississippi Medical Center, Jackson, MS, United States
| | - David E Stec
- Department of Physiology and Biophysics, Cardiorenal and Metabolic Diseases Research Center, University of Mississippi Medical Center, Jackson, MS, United States
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19
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McCauley C, Anang V, Cole B, Simmons GE. Potential Links between YB-1 and Fatty Acid Synthesis in Clear Cell Renal Carcinoma. ACTA ACUST UNITED AC 2020; 8. [PMID: 33778158 DOI: 10.18103/mra.v8i10.2273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
According to the National Institutes of Health, clear cell renal cell carcinoma (ccRCC) is the most common type of Renal Cell Carcinoma (RCC), making up approximately 75% of total renal carcinoma cases. Clear cell Renal Cell Carcinoma is characterized by a significant accumulation of lipids in the cytoplasm, which allows light from microscopes to pass through giving them a "clear" phenotype. Many of these lipids are in the form of fatty acids, both free and incorporated into lipid droplets. RCC is typically associated with a poor prognosis due to the lack of specific symptoms. Some symptoms include blood in urine, fever, lump on the side, weight loss, fatigue, to name a few; all of which can be associated with non-specific, non-cancerous, health conditions that contribute to difficult diagnosis. Treatment of RCC has typically been centered around radical nephrectomy as the standard of care, but due to the potentially small size of lesions and the possibility of causing surgically induced chronic kidney disease, treatments have shifted to more cautious, less invasive approaches. These approaches include active surveillance, nephron-sparing surgery, and other minimally invasive techniques like cryotherapy and renal ablation. Although these techniques have had the desired effect of reducing the number of surgeries, there is still considerable potential for renal impairment and the chance that tumors can grow out of control without surgery. With the difficulty that surrounds the treatment of ccRCC and its considerably high mortality rate amongst urological cancers, it is important to look for novel approaches to improve patient outcomes. This review looks at available literature and our data that suggests the lipogenic enzyme stearoyl-CoA desaturase may be more beneficial to patient survival than once thought. As our understanding of the importance of lipids in cell metabolism and longevity matures, it is important to present new perspectives that present a new understanding of ccRCC and the role of lipids in survival mechanisms engaged by transformed cells during cancer progression. In this review, we provide evidence that pharmacological inhibition of lipid desaturation in renal cancer patients is not without risk, and that the presence of unsaturated fatty acids may be a beneficial factor in patient outcomes. Although more direct experimental evidence is needed to make definitive conclusions, it is clear that the work reviewed herein should challenge our current understanding of cancer biology and may inform novel approaches to the diagnosis and treatment of ccRCC.
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Affiliation(s)
- Carter McCauley
- University of Minnesota Medical School, Duluth, MN, MN 55812, USA
| | - Vasthy Anang
- Clinical and Translational Science Institute PREP Program, University of Minnesota Medical School, Minneapolis, MN, MN 55812, USA
| | - Breanna Cole
- Department of Biology, The College of St. Scholastica, Duluth, MN, 55811, USA
| | - Glenn E Simmons
- University of Minnesota Medical School, Duluth, MN, MN 55812, USA.,Clinical and Translational Science Institute PREP Program, University of Minnesota Medical School, Minneapolis, MN, MN 55812, USA.,Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, MN 55812, USA.,Carcinogenesis and Chemoprevention program, Masonic Cancer Center, Minneapolis, MN 55455, USA
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20
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Vadlakonda L, Indracanti M, Kalangi SK, Gayatri BM, Naidu NG, Reddy ABM. The Role of Pi, Glutamine and the Essential Amino Acids in Modulating the Metabolism in Diabetes and Cancer. J Diabetes Metab Disord 2020; 19:1731-1775. [PMID: 33520860 DOI: 10.1007/s40200-020-00566-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 06/04/2020] [Indexed: 02/07/2023]
Abstract
Purpose Re-examine the current metabolic models. Methods Review of literature and gene networks. Results Insulin activates Pi uptake, glutamine metabolism to stabilise lipid membranes. Tissue turnover maintains the metabolic health. Current model of intermediary metabolism (IM) suggests glucose is the source of energy, and anaplerotic entry of fatty acids and amino acids into mitochondria increases the oxidative capacity of the TCA cycle to produce the energy (ATP). The reduced cofactors, NADH and FADH2, have different roles in regulating the oxidation of nutrients, membrane potentials and biosynthesis. Trans-hydrogenation of NADH to NADPH activates the biosynthesis. FADH2 sustains the membrane potential during the cell transformations. Glycolytic enzymes assume the non-canonical moonlighting functions, enter the nucleus to remodel the genetic programmes to affect the tissue turnover for efficient use of nutrients. Glycosylation of the CD98 (4F2HC) stabilises the nutrient transporters and regulates the entry of cysteine, glutamine and BCAA into the cells. A reciprocal relationship between the leucine and glutamine entry into cells regulates the cholesterol and fatty acid synthesis and homeostasis in cells. Insulin promotes the Pi transport from the blood to tissues, activates the mitochondrial respiratory activity, and glutamine metabolism, which activates the synthesis of cholesterol and the de novo fatty acids for reorganising and stabilising the lipid membranes for nutrient transport and signal transduction in response to fluctuations in the microenvironmental cues. Fatty acids provide the lipid metabolites, activate the second messengers and protein kinases. Insulin resistance suppresses the lipid raft formation and the mitotic slippage activates the fibrosis and slow death pathways.
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Affiliation(s)
| | - Meera Indracanti
- Institute of Biotechnology, University of Gondar, Gondar, Ethiopia
| | - Suresh K Kalangi
- Amity Stem Cell Institute, Amity University Haryana, Amity Education Valley Pachgaon, Manesar, Gurugram, HR 122413 India
| | - B Meher Gayatri
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046 India
| | - Navya G Naidu
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046 India
| | - Aramati B M Reddy
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046 India
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21
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A phytoestrogen secoisolariciresinol diglucoside induces browning of white adipose tissue and activates non-shivering thermogenesis through AMPK pathway. Pharmacol Res 2020; 158:104852. [PMID: 32438038 DOI: 10.1016/j.phrs.2020.104852] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 03/30/2020] [Accepted: 04/20/2020] [Indexed: 01/07/2023]
Abstract
Secoisolariciresinol diglucoside (SDG) is the main phytoestrogen component of flaxseed known as an antioxidant. Current study focused on the effect of SDG in white adipose tissue (WAT) browning. Browning of WAT is considered as a promising treatment strategy for metabolic diseases. To demonstrate the effect of SDG as an inducer of browning, brown adipocyte markers were investigated in inguinal WAT (iWAT) of high fat diet-fed obese mice and genetically obese db/db mice after SDG administration. SDG increased thermogenic factors such as uncoupling protein 1, peroxisome proliferator-activated receptor gamma coactivator 1 alpha and PR domain containing 16 in iWAT and brown adipose tissue (BAT) of mice. Similar results were shown in beige-induced 3T3-L1 adipocytes and primary cultured brown adipocytes. Furthermore, SDG increased factors of mitochondrial biogenesis and activation. We also observed SDG-induced alteration of AMP-activated protein kinase α (AMPKα). As AMPKα is closely related in the regulation of adipogenesis and thermogenesis, we then evaluated the effect of SDG in AMPKα-inhibited conditions. Genetic or chemical inhibition of AMPKα demonstrated that the role of SDG on browning and thermogenesis was dependent on AMPKα signaling. In conclusion, our data suggest SDG as a potential candidate for improvement of obesity and other metabolic disorders.
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22
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Wang X, Sun S, Cao X, Gao J. Quantitative Phosphoproteomic Analysis Reveals the Regulatory Networks of Elovl6 on Lipid and Glucose Metabolism in Zebrafish. Int J Mol Sci 2020; 21:ijms21082860. [PMID: 32325903 PMCID: PMC7215441 DOI: 10.3390/ijms21082860] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/09/2020] [Accepted: 04/14/2020] [Indexed: 11/18/2022] Open
Abstract
Elongation of very long-chain fatty acids protein 6 (Elovl6) has been reported to be associated with clinical treatments of a variety of metabolic diseases. However, there is no systematic and comprehensive study to reveal the regulatory role of Elovl6 in mRNA, protein and phosphorylation levels. We established the first knock-out (KO), elovl6−/−, in zebrafish. Compared with wild type (WT) zebrafish, KO presented significant higher whole-body lipid content and lower content of fasting blood glucose. We utilized RNA-Seq, tandem mass tag (TMT) labeling-based quantitative technology and liquid chromatography-tandem mass spectrometry (LC-MS/MS) to perform the transcriptomic, proteomic and phosphoproteomic analyses of livers from WT and elovl6−/− zebrafish. There were 734 differentially expressed genes (DEG) and 559 differentially expressed proteins (DEP) between elovl6−/− and WT zebrafish, identified out of quantifiable 47251 transcripts and 5525 proteins. Meanwhile, 680 differentially expressed phosphoproteins (DEPP) with 1054 sites were found out of quantifiable 1230 proteins with 3604 sites. Gene ontology (GO) and kyoto encyclopedia of genes and genomes (KEGG) analysis of the transcriptomic and proteomic data further suggested that the abnormal lipid metabolism and glucose metabolism in KO were mainly related to fatty acid degradation and biosynthesis, glycolysis/gluconeogenesis and PPAR signaling pathway. Based on phosphoproteomic analyses, some kinases critical for lipid metabolism and glucose metabolism, including ribosomal protein S6 kinase (Rps6kb), mitogen-activated protein kinase14 (Mapk14) and V-akt murine thymoma viral oncogene homolog 2-like (Akt2l), were identified. These results allowed us to catch on the regulatory networks of elovl6 on lipid and glucose metabolism in zebrafish. To our knowledge, this is the first multi-omic study of zebrafish lacking elovl6, which provides strong datasets to better understand many lipid/glucose metabolic risks posed to human health.
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Affiliation(s)
- Xueting Wang
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education/National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan 430070, China; (X.W.); (S.S.); (X.C.)
| | - Shouxiang Sun
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education/National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan 430070, China; (X.W.); (S.S.); (X.C.)
| | - Xiaojuan Cao
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education/National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan 430070, China; (X.W.); (S.S.); (X.C.)
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan 430070, China
| | - Jian Gao
- College of Fisheries, Engineering Research Center of Green development for Conventional Aquatic Biological Industry in the Yangtze River Economic Belt, Ministry of Education/National Demonstration Center for Experimental Aquaculture Education, Huazhong Agricultural University, Wuhan 430070, China; (X.W.); (S.S.); (X.C.)
- College of Fisheries, Hubei Provincial Engineering Laboratory for Pond Aquaculture, Huazhong Agricultural University, Wuhan 430070, China
- Correspondence: ; Tel.: +86-(027)-8728-2113
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23
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Antrodia cinnamomea Confers Obesity Resistance and Restores Intestinal Barrier Integrity in Leptin-deficient Obese Mice. Nutrients 2020; 12:nu12030726. [PMID: 32164196 PMCID: PMC7146579 DOI: 10.3390/nu12030726] [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: 02/11/2020] [Revised: 03/05/2020] [Accepted: 03/06/2020] [Indexed: 12/13/2022] Open
Abstract
Obesity is associated with metabolic disorders. Thus, obesity prevention and treatment are essential for health. Antrodia cinnamomea (AC) is a multifunctional medicinal fungus used for the treatment of various diseases and for preventing diet-induced obesity. Leptin deficiency causes over-eating and spontaneous obesity. The concomitant metabolic symptoms are more severe than diet-induced obesity. Here, we used leptin-deficient (ob/ob) mice as an animal model for over-feeding to study the effect of AC on obesity. We fed C57BL/6 mice (WT, ob+/+) and ob/ob mice with AC for four weeks before performing qRT-PCR and immunoblot analysis to elaborate AC-modulated mechanisms. Further, we used Caco-2 cells as a human intestinal epithelial barrier model to examine the effect of AC on intestinal permeability. Our results suggested that AC reduces lipid deposits of the liver and epididymal white adipose tissue (EWAT) by promoting lipid metabolism and inhibiting lipogenesis-associated genes and proteins in ob/ob mice. Moreover, AC effectively repaired intestinal-barrier injury caused by leptin deficiency and enhanced intestinal barrier integrity in Caco-2 cells. Interestingly, AC significantly reduced body weight and EWAT with no compromise on food intake in ob/ob mice. Thus, AC effectively reduced obesity caused by leptin-deficiency and can potentially be used as a nutraceutical for treating obesity.
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24
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Liu G, Ding Y, Chen Y, Yang Y. Effect of energy intake and L-carnitine on fattening performance, carcass traits, meat quality, blood metabolites, and gene expression of lamb. Small Rumin Res 2020. [DOI: 10.1016/j.smallrumres.2019.106025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Balachandiran M, Bobby Z, Dorairajan G, Jacob SE, Gladwin V, Vinayagam V, Packirisamy RM. Placental Accumulation of Triacylglycerols in Gestational Diabetes Mellitus and Its Association with Altered Fetal Growth are Related to the Differential Expressions of Proteins of Lipid Metabolism. Exp Clin Endocrinol Diabetes 2020; 129:803-812. [PMID: 31968385 DOI: 10.1055/a-1017-3182] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Gestational diabetes mellitus (GDM) exhibit altered placental lipid metabolism. The molecular basis of this altered metabolism is not clear. Altered placental expression of proteins of lipogenesis and fatty acid oxidation may be involved in the placental accumulation of triacylglycerols (TG). The present study was aimed at investigating the differential expressions of placental proteins related to lipid metabolism among GDM women in comparison with control pregnant women (CPW) and to correlate them with maternal and fetal lipid parameters as well as altered fetal growth. MATERIALS AND METHODS Maternal blood, cord blood, and placental samples were collected from GDM and CPW. The biochemical parameters, glucose, lipid profile and free fatty acids (FFA) were measured. The placental TG content was measured. Differential placental expressions of proteins; phosphatidylinositol-3-kinase (PI3K) p85α, PI3K p110α,liver X receptor alpha (LXRα), sterol regulatory element binding protein1(SREBP1), fatty acid synthase (FAS), stearyl CoA desaturase1 (SCD1), lipoprotein lipase (LPL),Peroxisome proliferator-activated receptor (PPAR)α and PPARγ were analysed by western blotting and immunohistochemistry. RESULTS Placental protein expressions of PI3K p110α, LXRα, FAS, SCD1, and LPL were found to be significantly higher, whereas PPARα and PPARγ were lower in GDM women compared with CPW. The placental TG content and cord plasma FFA were increased in GDM women compared with CPW. The placental TG content positively correlated with Ponderal index of GDM new-borns. CONCLUSION Differential expressions of placental proteins related to lipid metabolism in GDM might have led to placental TG accumulation. This might have contributed to the fetal overgrowth in GDM.
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Affiliation(s)
- Manoharan Balachandiran
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Zachariah Bobby
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Gowri Dorairajan
- Department of Obstetrics & Gynaecology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Sajini Elizabeth Jacob
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Victorraj Gladwin
- Department of Anatomy, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Vickneshwaran Vinayagam
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Rajaa Muthu Packirisamy
- Department of Biochemistry, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
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Choi WJ, Dong HJ, Jeong HU, Ryu DW, Song SM, Kim YR, Jung HH, Kim TH, Kim YH. Lactobacillus plantarum LMT1-48 exerts anti-obesity effect in high-fat diet-induced obese mice by regulating expression of lipogenic genes. Sci Rep 2020; 10:869. [PMID: 31964951 PMCID: PMC6972779 DOI: 10.1038/s41598-020-57615-5] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 01/03/2020] [Indexed: 12/16/2022] Open
Abstract
Obesity is a major health problem and is known to be closely associated with metabolic diseases. Abnormal hepatic accumulation of fat causes fatty liver or hepatic steatosis, and long-term consumption of a high-fat diet is known to be a key obesity-causing factor. Recent studies have demonstrated that probiotics such as Lactobacillus strains, exert an anti-obesity effect by regulating adipogenesis. However, it is still unknown how the consumption of probiotics can reduce abdominal fat volume by regulating the hepatic expression of lipogenic genes. Therefore, we evaluated the effect of long-term ingestion of L. plantarum LMT1-48 on the expression of lipogenic genes in high-fat diet (HFD)-fed mice. We observed that treatment of 3T3-L1 adipocytes with L. plantarum LMT1-48 extract inhibited their differentiation and lipid accumulation by downregulating lipogenic genes, namely, PPARγ, C/EBPα, FAS, and FABP4. Interestingly, administration of L. plantarum LMT1-48 reduced liver weight and liver triglycerides concurrently with the downregulation of the lipogenic genes PPARγ, HSL, SCD-1, and FAT/CD36 in the liver, resulting in the reduction of body weight and fat volume in HFD-fed obese mice. Notably, we also observed that the administration of at least 106 CFU of L. plantarum LMT1-48 significantly lowered body weight and abdominal fat volume in modified diet-fed mouse models. Collectively, these data suggest that L. plantarum LMT1-48 is a potential healthy food for obese people.
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Affiliation(s)
- Woo Jin Choi
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea
| | - Hye Jin Dong
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea
| | - Hyun Uk Jeong
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea
| | - Dong Wook Ryu
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea
| | - Soo Min Song
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea
| | - Yu Ri Kim
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea
| | | | - Tai Hoon Kim
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea
| | - Yeung-Hyen Kim
- Medytox Gwangkyo R&D center, Medytox Inc., Suwon, Republic of Korea.
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Rosqvist F, Kullberg J, Ståhlman M, Cedernaes J, Heurling K, Johansson HE, Iggman D, Wilking H, Larsson A, Eriksson O, Johansson L, Straniero S, Rudling M, Antoni G, Lubberink M, Orho-Melander M, Borén J, Ahlström H, Risérus U. Overeating Saturated Fat Promotes Fatty Liver and Ceramides Compared With Polyunsaturated Fat: A Randomized Trial. J Clin Endocrinol Metab 2019; 104:6207-6219. [PMID: 31369090 PMCID: PMC6839433 DOI: 10.1210/jc.2019-00160] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Accepted: 07/26/2019] [Indexed: 12/11/2022]
Abstract
CONTEXT Saturated fatty acid (SFA) vs polyunsaturated fatty acid (PUFA) may promote nonalcoholic fatty liver disease by yet unclear mechanisms. OBJECTIVE To investigate if overeating SFA- and PUFA-enriched diets lead to differential liver fat accumulation in overweight and obese humans. DESIGN Double-blind randomized trial (LIPOGAIN-2). Overfeeding SFA vs PUFA for 8 weeks, followed by 4 weeks of caloric restriction. SETTING General community. PARTICIPANTS Men and women who are overweight or have obesity (n = 61). INTERVENTION Muffins, high in either palm (SFA) or sunflower oil (PUFA), were added to the habitual diet. MAIN OUTCOME MEASURES Lean tissue mass (not reported here). Secondary and exploratory outcomes included liver and ectopic fat depots. RESULTS By design, body weight gain was similar in SFA (2.31 ± 1.38 kg) and PUFA (2.01 ± 1.90 kg) groups, P = 0.50. SFA markedly induced liver fat content (50% relative increase) along with liver enzymes and atherogenic serum lipids. In contrast, despite similar weight gain, PUFA did not increase liver fat or liver enzymes or cause any adverse effects on blood lipids. SFA had no differential effect on the accumulation of visceral fat, pancreas fat, or total body fat compared with PUFA. SFA consistently increased, whereas PUFA reduced circulating ceramides, changes that were moderately associated with liver fat changes and proposed markers of hepatic lipogenesis. The adverse metabolic effects of SFA were reversed by calorie restriction. CONCLUSIONS SFA markedly induces liver fat and serum ceramides, whereas dietary PUFA prevents liver fat accumulation and reduces ceramides and hyperlipidemia during excess energy intake and weight gain in overweight individuals.
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Affiliation(s)
- Fredrik Rosqvist
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Joel Kullberg
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Antaros Medical AB, BioVenture Hub, Mölndal, Sweden
| | - Marcus Ståhlman
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Jonathan Cedernaes
- Division of Endocrinology, Metabolism and Molecular Medicine, Northwestern University, Chicago, Illinois
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Kerstin Heurling
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Antaros Medical AB, BioVenture Hub, Mölndal, Sweden
- Wallenberg Centre for Molecular and Translational Medicine and Department of Psychiatry and Neurochemistry, University of Gothenburg, Gothenburg, Sweden
| | - Hans-Erik Johansson
- Department of Public Health and Caring Sciences, Geriatrics, Uppsala University, Uppsala, Sweden
| | - David Iggman
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
- Center for Clinical Research Dalarna, Falun, Sweden
| | - Helena Wilking
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
| | - Anders Larsson
- Department of Medical Sciences, Uppsala University, Uppsala, Sweden
| | - Olof Eriksson
- Antaros Medical AB, BioVenture Hub, Mölndal, Sweden
- Science for Life Laboratory, Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Lars Johansson
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Antaros Medical AB, BioVenture Hub, Mölndal, Sweden
| | - Sara Straniero
- Metabolism Unit, Endocrinology, Metabolism and Diabetes, and Integrated CardioMetabolic Center, Department of Medicine, Karolinska Institutet at Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Mats Rudling
- Metabolism Unit, Endocrinology, Metabolism and Diabetes, and Integrated CardioMetabolic Center, Department of Medicine, Karolinska Institutet at Karolinska University Hospital, Huddinge, Stockholm, Sweden
| | - Gunnar Antoni
- Department of Medicinal Chemistry, Uppsala University, Uppsala, Sweden
| | - Mark Lubberink
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
| | - Marju Orho-Melander
- Department of Clinical Sciences in Malmö, Lund University Diabetes Centre, Lund University, Malmö, Sweden
| | - Jan Borén
- Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Håkan Ahlström
- Department of Surgical Sciences, Radiology, Uppsala University, Uppsala, Sweden
- Antaros Medical AB, BioVenture Hub, Mölndal, Sweden
| | - Ulf Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
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Associations of maternal and fetal SCD-1 markers with infant anthropometry and maternal diet: Findings from the ROLO study. Clin Nutr 2019; 39:2129-2136. [PMID: 31708235 DOI: 10.1016/j.clnu.2019.08.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 08/22/2019] [Accepted: 08/23/2019] [Indexed: 11/23/2022]
Abstract
BACKGROUND Elevated stearoyl-CoA desaturase 1 (SCD-1) activity showed associations with obesity in cross-sectional studies. In non-pregnant populations, nutrition regulates SCD-1 transcription and activity. OBJECTIVE To investigate the longitudinal associations of maternal and fetal SCD-1 activity markers with infant anthropometry up to 2 years of age, and to explore how selected dietary intakes modulate SCD-1 activity in pregnancy. METHODS As a secondary analysis from the ROLO intervention study, which was conducted in a population at risk for macrosomia, non-esterified fatty acids (NEFA) from maternal plasma at 13 and 28 weeks' gestation and in cord blood were measured via liquid-chromatography-mass-spectrometry. Fatty acid ratios 18:1/18:0 and 16:1/16:0 were used as markers for SCD-1 activity ('desaturation indices', DIs). Relationships of DIs with infant anthropometry up to 2 years of age and maternal dietary parameters during pregnancy were investigated using adjusted linear regression models and p-values correction for multiple testing. RESULTS 18:1/18:0, but not 16:1/16:0, was associated with measures of infant anthropometry at birth (maternal and fetal markers) and up to 2 years of age (maternal markers only). Dietary intakes did not show strong associations with 18:1/18:0, but 16:1/16:0 was associated with absolute and relative dietary intakes. CONCLUSIONS In a population at risk for macrosomia, maternal SCD-1 activity measured via 18:1/18:0 was involved in the fetal programming of infant obesity, but could not be substantially modulated by short-term diet in pregnancy. CLINICAL TRIAL REGISTRATION ISRCTN Registration number: ISRCTN54392969 (http://www.isrctn.com/ISRCTN54392969).
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29
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Montserrat-de la Paz S, Naranjo MC, Millan-Linares MC, Lopez S, Abia R, Biessen EAL, Muriana FJG, Bermudez B. Monounsaturated Fatty Acids in a High-Fat Diet and Niacin Protect from White Fat Dysfunction in the Metabolic Syndrome. Mol Nutr Food Res 2019; 63:e1900425. [PMID: 31343843 DOI: 10.1002/mnfr.201900425] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/26/2019] [Indexed: 12/14/2022]
Abstract
SCOPE Obesity is a principal causative factor of metabolic syndrome. Niacin potently regulates lipid metabolism. Replacement of saturated fatty acids by MUFAs or inclusion of omega-3 long-chain PUFAs in the diet improves plasma lipid levels. However, the potential benefits of niacin in combination with MUFAs or omega-3 long-chain PUFAs against white adipose tissue (WAT) dysfunction in the high fat diet (HFD)-induced metabolic syndrome are unknown. METHODS AND RESULTS Male Lepob/ob LDLR-/- mice are fed a chow diet or HFDs based on milk cream (21% kcal), olive oil (21% kcal), or olive oil (20% kcal) plus 1% kcal from eicosapentaenoic and docosahexaenoic acids, including immediate-release niacin (1% w/v) in drinking water, for 8 weeks. Mice are then phenotyped. Dietary MUFAs are identified as positive regulators of adipose NAD+ signaling pathways by triggering NAD+ biosynthesis via the salvage pathway. This coexists with overexpression of genes involved in recognition of NAD+ and fatty acids, a surrounding lipid environment dominated by exogenous oleic acid and an alternatively activated macrophage profile, which culminate in a healthy expansion of WAT and improvement of several hallmarks that typify the metabolic syndrome. CONCLUSION Niacin in combination with dietary MUFAs can favor WAT homeostasis in the development of HFD-induced obesity and metabolic syndrome.
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Affiliation(s)
- Sergio Montserrat-de la Paz
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013, Seville, Spain.,Department of Medical Biochemistry, Molecular Biology and Immunology, School of Medicine, University of Seville, 41009, Seville, Spain
| | - Maria C Naranjo
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013, Seville, Spain
| | | | - Sergio Lopez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013, Seville, Spain.,Department of Cell Biology, School of Biology, University of Seville, 41012, Seville, Spain
| | - Rocio Abia
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013, Seville, Spain
| | - Erik A L Biessen
- Experimental Vascular Pathology Group, Cardiovascular Research Institute of Maastricht (CARIM), University of Maastricht, 6200, Maastricht, The Netherlands
| | - Francisco J G Muriana
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013, Seville, Spain
| | - Beatriz Bermudez
- Laboratory of Cellular and Molecular Nutrition, Instituto de la Grasa, CSIC, 41013, Seville, Spain.,Department of Cell Biology, School of Biology, University of Seville, 41012, Seville, Spain
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30
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Szafraniec E, Kus E, Wislocka A, Kukla B, Sierka E, Untereiner V, Sockalingum GD, Chlopicki S, Baranska M. Raman spectroscopy-based insight into lipid droplets presence and contents in liver sinusoidal endothelial cells and hepatocytes. JOURNAL OF BIOPHOTONICS 2019; 12:e201800290. [PMID: 30578586 DOI: 10.1002/jbio.201800290] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 06/09/2023]
Abstract
Liver sinusoidal endothelial cells (LSECs), a type of endothelial cells with unique morphology and function, play an important role in the liver hemostasis, and LSECs dysfunction is involved in the development of nonalcoholic fatty liver disease (NAFLD). Here, we employed Raman imaging and chemometric data analysis in order to characterize the presence of lipid droplets (LDs) and their lipid content in primary murine LSECs, in comparison with hepatocytes, isolated from mice on high-fat diet. On NAFLD development, LDs content in LSECs changed toward more unsaturated lipids, and this response was associated with an increased expression of stearylo-CoA desaturase-1. To the best of our knowledge, this is a first report characterizing LDs in LSECs, where their chemical composition is analyzed along the progression of NAFLD at the level of single LD using Raman imaging.
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Affiliation(s)
- Ewelina Szafraniec
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Edyta Kus
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Adrianna Wislocka
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Bozena Kukla
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
| | - Ewa Sierka
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
| | - Valérie Untereiner
- Plateforme d'Imagerie Cellulaire et Tissulaire (PICT), Université de Reims Champagne-Ardenne, Reims, France
| | - Ganesh D Sockalingum
- BioSpecT-BioSpectroscopie Translationnelle, Université de Reims Champagne-Ardenne, Reims, France
| | - Stefan Chlopicki
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
- Chair of Pharmacology, Jagiellonian University Medical College, Krakow, Poland
| | - Malgorzata Baranska
- Faculty of Chemistry, Jagiellonian University, Krakow, Poland
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Krakow, Poland
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31
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Macronutrients and the Adipose-Liver Axis in Obesity and Fatty Liver. Cell Mol Gastroenterol Hepatol 2019; 7:749-761. [PMID: 30763771 PMCID: PMC6463203 DOI: 10.1016/j.jcmgh.2019.02.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 01/30/2019] [Accepted: 02/01/2019] [Indexed: 02/06/2023]
Abstract
Macronutrient metabolism is a highly orchestrated process, with adipose tissue and liver each playing central roles in nutrient uptake, processing, transport, and storage. These 2 tissues form an important metabolic circuit, particularly as it relates to lipids as the primary storage form of excess energy. The function of the circuit is influenced by many factors, including the quantity and type of nutrients consumed and their impact on the overall health of the tissues. In this review we begin with a brief summary of the homeostatic disposition of lipids between adipose tissue and liver and how these processes can become dysregulated in obesity. We then explore how specific dietary nutrients and nutrient combinations can exert unique influences on the liver-adipose tissue axis.
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32
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Skinner RC, Warren DC, Lateef SN, Benedito VA, Tou JC. Apple Pomace Consumption Favorably Alters Hepatic Lipid Metabolism in Young Female Sprague-Dawley Rats Fed a Western Diet. Nutrients 2018; 10:E1882. [PMID: 30513881 PMCID: PMC6316627 DOI: 10.3390/nu10121882] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/05/2018] [Accepted: 11/20/2018] [Indexed: 02/06/2023] Open
Abstract
Apple pomace, which is a waste byproduct of processing, is rich in several nutrients, particularly dietary fiber, indicating potential benefits for diseases that are attributed to poor diets, such as non-alcoholic fatty liver disease (NAFLD). NAFLD affects over 25% of United States population and is increasing in children. Increasing fruit consumption can influence NAFLD. The study objective was to replace calories in standard or Western diets with apple pomace to determine the effects on genes regulating hepatic lipid metabolism and on risk of NAFLD. Female Sprague-Dawley rats were randomly assigned (n = 8 rats/group) to isocaloric diets of AIN-93G and AIN-93G/10% w/w apple pomace (AIN/AP) or isocaloric diets of Western (45% fat, 33% sucrose) and Western/10% w/w apple pomace (Western/AP) diets for eight weeks. There were no significant effects on hepatic lipid metabolism in rats fed AIN/AP. Western/AP diet containing fiber-rich apple pomace attenuated fat vacuole infiltration, elevated monounsaturated fatty acid content, and triglyceride storage in the liver due to higher circulating bile and upregulated hepatic DGAT2 gene expression induced by feeding a Western diet. The study results showed the replacement of calories in Western diet with apple pomace attenuated NAFLD risk. Therefore, apple pomace has the potential to be developed into a sustainable functional food for human consumption.
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Affiliation(s)
- Roy Chris Skinner
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV 26506, USA.
| | - Derek C Warren
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV 26506, USA.
| | - Soofia N Lateef
- Department of Chemical Engineering, West Virginia University, Morgantown, WV 26506, USA.
| | - Vagner A Benedito
- Division of Plant and Soil Sciences, West Virginia University, Morgantown, WV 26506, USA.
| | - Janet C Tou
- Division of Animal and Nutritional Sciences, West Virginia University, Morgantown, WV 26506, USA.
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Abstract
The present review will present the recent published results and discuss the main effects of nutrients, mainly fatty acids, on the expression of genes involved in lipid metabolism. In this sense, the review focuses in two phases: prenatal life and finishing phase, showing how nutrients can modulate gene expression affecting marbling and fatty acid profile in meat from ruminants. Adiposity in ruminants starts to be affected by nutrients during prenatal life when maternal nutrition affects the differentiation and proliferation of adipose cells enhancing the marbling potential. Therefore, several fetal programming studies were carried out in the last two decades in order to better understand how nutrients affect long-term expression of genes involved in adipogenesis and lipogenesis. In addition, during the finishing phase, marbling becomes largely dependent on starch digestion and glucose metabolism, being important to create alternatives to increase these metabolic processes, and modulates gene expression. Different lipid sources and their fatty acids may also influence the expression of genes responsible to encode enzymes involved in fat tissue deposition, influencing meat quality. In conclusion, the knowledge shows that gene expression is a metabolic factor affecting marbling and fatty acid profile in ruminant meat and diets and their nutrients have direct effect on how these genes are expressed.
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34
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Park JE, Lee EJ, Kim JK, Song Y, Choi JH, Kang MJ. Flightless-I Controls Fat Storage in Drosophila. Mol Cells 2018; 41:603-611. [PMID: 29890821 PMCID: PMC6030243 DOI: 10.14348/molcells.2018.0120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/04/2018] [Accepted: 05/21/2018] [Indexed: 01/24/2023] Open
Abstract
Triglyceride homeostasis is a key process of normal development and is essential for the maintenance of energy metabolism. Dysregulation of this process leads to metabolic disorders such as obesity and hyperlipidemia. Here, we report a novel function of the Drosophila flightless-I (fliI) gene in lipid metabolism. Drosophila fliI mutants were resistant to starvation and showed increased levels of triglycerides in the fat body and intestine, whereas fliI overexpression decreased triglyceride levels. These flies suffered from metabolic stress indicated by increased levels of trehalose in hemolymph and enhanced phosphorylation of eukaryotic initiation factor 2 alpha (eIF2α). Moreover, upregulation of triglycerides via a knockdown of fliI was reversed by a knockdown of desat1 in the fat body of flies. These results indicate that fliI suppresses the expression of desat1, thereby inhibiting the development of obesity; fliI may, thus, serve as a novel therapeutic target in obesity and metabolic diseases.
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Affiliation(s)
- Jung-Eun Park
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul 05505,
Korea
| | - Eun Ji Lee
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul 05505,
Korea
| | - Jung Kwan Kim
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919,
Korea
| | - Youngsup Song
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul 05505,
Korea
| | - Jang Hyun Choi
- Department of Biological Sciences, Ulsan National Institute of Science and Technology, Ulsan 44919,
Korea
| | - Min-Ji Kang
- Department of Biomedical Sciences, University of Ulsan College of Medicine, Seoul 05505,
Korea
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35
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Santos JDB, Mendonça AAS, Sousa RC, Silva TGS, Bigonha SM, Santos EC, Gonçalves RV, Novaes RD. Food-drug interaction: Anabolic steroids aggravate hepatic lipotoxicity and nonalcoholic fatty liver disease induced by trans fatty acids. Food Chem Toxicol 2018; 116:360-368. [PMID: 29704577 DOI: 10.1016/j.fct.2018.04.056] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 04/19/2018] [Accepted: 04/24/2018] [Indexed: 12/18/2022]
Abstract
Remains unknown if dietary lipids and anabolic steroids (AS) can interact to modify energy metabolism, hepatic structure and function. We investigated the impact of AS on gene expression, lipid profile, redox status and the development of nonalcoholic fatty liver disease (NAFLD) in mice treated with a diet rich in trans fatty acids. Seventy-two C57BL/6 mice were equally randomized into six groups and treated with a standard diet (SD) or high-fat diet (HFD) alone or combined with testosterone cypionate (10 or 20 mg/kg) for 12 weeks. When combined with a HFD, AS reduced plasma HDL cholesterol levels. It also upregulated SREBP-1, PPARα, SCD-1 and ACOX1 gene expression; plasma and hepatic triglyceride levels; oxidative stress; circulating hepatic transaminase levels and NAFLD severity. Our finding indicated that the activity of antioxidant enzymes such as catalase, glutathione-s-transferase and superoxide dismutase was attenuated by HFD, an effect whose implications for AS-induced hepatotoxicity requires further investigation. Increased lipid, protein and DNA oxidative damage as well as worsening NAFLD in response to the interaction of HFD and AS were also potentially associated with the ability of AS to amplify the activation of regulatory lipid metabolism genes that are also involved in the control of cellular redox balance.
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Affiliation(s)
- Jamili D B Santos
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, 37130-000, Minas Gerais, Brazil
| | - Andréa A S Mendonça
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, 37130-000, Minas Gerais, Brazil
| | - Rafaela C Sousa
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, 37130-000, Minas Gerais, Brazil
| | - Thaiany G S Silva
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, 37130-000, Minas Gerais, Brazil
| | - Solange M Bigonha
- Department of Nutrition and Health, Federal University of Viçosa, 36570-000, Minas Gerais, Brazil
| | - Eliziária C Santos
- School of Medicine, Federal University of Jequitinhonha and Mucuri Valleys, 39100-000, Minas Gerais, Brazil
| | - Reggiani V Gonçalves
- Department of Animal Biology, Federal University of Viçosa, 36570-000, Minas Gerais, Brazil
| | - Rômulo D Novaes
- Institute of Biomedical Sciences, Department of Structural Biology, Federal University of Alfenas, 37130-000, Minas Gerais, Brazil.
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Inaba T, Tanaka Y, Tamaki S, Ito T, Ntambi JM, Tsubota K. Compensatory increases in tear volume and mucin levels associated with meibomian gland dysfunction caused by stearoyl-CoA desaturase-1 deficiency. Sci Rep 2018; 8:3358. [PMID: 29463801 PMCID: PMC5820245 DOI: 10.1038/s41598-018-21542-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/06/2018] [Indexed: 12/25/2022] Open
Abstract
The stearoyl-CoA desaturase (SCD) family of enzymes catalyzes monounsaturated fatty acid synthesis by inserting a cis double bond at the Δ9 position of saturated fatty acids. Disruption of these enzymes has been reported to induce a severe dry skin phenotype. Since lipid abnormalities in the meibomian glands have been associated with dry eye, we analyzed selected eye tissues contributing to tear volume and composition in genetically SCD-1-deficient mice (SCD-1 KO), including the lacrimal glands and conjunctiva. Previous histopathological analysis had revealed atrophy and loss of meibomian glands; taken together with the increased goblet cell and MUC5AC expression in the conjunctiva reported here, these findings suggest that the tear volume and mucin levels secreted are enhanced in the absence of lipid secretion as a compensatory mechanism. The expression of lipid metabolism genes in lacrimal glands was decreased in SCD1 KO mice. Thus, these results provide new pathophysiological mechanisms to pursue with regard to meibomian gland dysfunction. In addition, lack of SCD-1 causes a compensatory increase in the tear volume and mucin levels associated with changes in expression of lipid metabolism genes. These results may be useful as a new concept for dry eye treatment strategies.
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Affiliation(s)
- Takaaki Inaba
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Yasuhisa Tanaka
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Shusaku Tamaki
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Tomotaka Ito
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - James M Ntambi
- Departments of Biochemistry and of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI, 53706, USA
| | - Kazuo Tsubota
- Department of Ophthalmology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
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37
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An SM, Seong KY, Yim SG, Hwang YJ, Bae SH, Yang SY, An BS. Intracutaneous delivery of gelatins induces lipolysis and suppresses lipogenesis of adipocytes. Acta Biomater 2018; 67:238-247. [PMID: 29208554 DOI: 10.1016/j.actbio.2017.11.050] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/24/2017] [Accepted: 11/28/2017] [Indexed: 12/21/2022]
Abstract
Due to growing interest in cosmetics and medical applications, therapeutic medications that reduce the amount of local subcutaneous adipose tissue have potential for obesity treatment. However, conventional methods such as surgical operation are restricted due to risk of complications. Here, we report a simple and effective method for local reduction of subcutaneous adipose tissue (AT) by using microneedle-assisted transdermal delivery of natural polymers. After in vitro screening tests, gelatin was selected as a therapeutic polymer to reduce accumulation of AT. An in vitro study showed that the level of released glycerol as an indicator of lipolysis was elevated in isolated adipocytes after gelatin treatment. In addition, gelatins suppressed expression levels of lipogenesis-associated genes. Following application of gelatin microneedle (GMN) patches to high-fat diet (HD)-induced obese rats, the amount of subcutaneous AT at the site of GMN application was significantly reduced, which was also confirmed by histological analysis and micro-computed tomography scanning. In addition, lipogenesis-associated genes were down-regulated in GMN-treated subcutaneous AT. These findings suggest that GMN patches induce lipolysis and simultaneously inhibit lipogenesis, thereby reducing deposition of subcutaneous AT. This platform using GMNs may provide a new strategy to treat excess subcutaneous AT with minimal complications. STATEMENT OF SIGNIFICANCE: (1) Significance This work reports a new approach for the local reduction of subcutaneous adipose tissue using a dissolving microneedle patch prepared using gelatin to enable suppression of lipogenesis and acceleration of lipolysis in adipocytes. The gelatin microneedle patch exhibited a significant reduction of local subcutaneous fat up to 60% compared to control groups without any change in total weight. (2) Scientific impact This is the first report demonstrating the direct anti-obesity effects of gelatin administrated in a transdermal route and the feasibility of natural polymer therapeutics for regional reduction of subcutaneous fat. We believe that our work will excite interdisciplinary readers of Acta Biomaterialia, those who are interested in the natural polymers, drug delivery, and obesity.
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Affiliation(s)
- Sung-Min An
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Keum-Yong Seong
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Sang-Gu Yim
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Young Jun Hwang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea
| | - Seong Hwan Bae
- Department of Plastic and Reconstructive Surgery, Pusan National University, Busan 46241, Republic of Korea
| | - Seung Yun Yang
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea.
| | - Beum-Soo An
- Department of Biomaterials Science, Life and Industry Convergence Institute, Pusan National University, Miryang 50463, Republic of Korea.
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38
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Revilla M, Puig-Oliveras A, Crespo-Piazuelo D, Criado-Mesas L, Castelló A, Fernández AI, Ballester M, Folch JM. Expression analysis of candidate genes for fatty acid composition in adipose tissue and identification of regulatory regions. Sci Rep 2018; 8:2045. [PMID: 29391556 PMCID: PMC5794915 DOI: 10.1038/s41598-018-20473-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 01/16/2018] [Indexed: 02/07/2023] Open
Abstract
The aim of this work was to study the genetic basis of the backfat expression of lipid-related genes associated with meat quality traits in pigs. We performed a genome-wide association study with the backfat gene expression measured in 44 genes by qPCR and the PorcineSNP60 BeadChip genotypes in 115 Iberian x Landrace backcross animals. A total of 193 expression-associated SNPs located in 19 chromosomal regions were associated with expression levels of ACSM5, ELOVL6, FABP4, FADS2, and SLC27A4 genes. Three expression quantitative trail loci (eQTLs) corresponding to ACSM5, FABP4, and FADS2 were classified as cis-acting eQTLs, whereas the remaining 16 eQTLs have trans-regulatory effects. Remarkably, a SNP in the ACSM5 promoter region and a SNP in the 3′UTR region of FABP4 were the most associated polymorphisms with the ACSM5 and FABP4 expression levels, respectively. Moreover, relevant lipid-related genes mapped in the trans-eQTLs regions associated with the ACSM5, FABP4, FADS2, and SLC27A4 genes. Interestingly, a trans-eQTL hotspot on SSC13 regulating the gene expression of ELOVL6, ELOLV5, and SCD, three important genes implicated in the elongation and desaturation of fatty acids, was identified. These findings provide new data to further understand the functional regulatory mechanisms implicated in the variation of fatty acid composition in pigs.
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Affiliation(s)
- Manuel Revilla
- Animal Genomics Department, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, 08193, Bellaterra, Spain. .,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain.
| | - Anna Puig-Oliveras
- Animal Genomics Department, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, 08193, Bellaterra, Spain.,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
| | - Daniel Crespo-Piazuelo
- Animal Genomics Department, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, 08193, Bellaterra, Spain.,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
| | - Lourdes Criado-Mesas
- Animal Genomics Department, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, 08193, Bellaterra, Spain.,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
| | - Anna Castelló
- Animal Genomics Department, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, 08193, Bellaterra, Spain.,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
| | - Ana I Fernández
- Departamento de Genética Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), 28040, Madrid, Spain
| | - Maria Ballester
- Departament de Genètica i Millora Animal, Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Torre Marimon, 08140, Caldes de Montbui, Spain
| | - Josep M Folch
- Animal Genomics Department, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB, 08193, Bellaterra, Spain.,Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona (UAB), 08193, Bellaterra, Spain
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39
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Li Y, Jia Z, Liang X, Matulic D, Hussein M, Gao J. Growth performance, fatty-acid composition, lipid deposition and hepatic-lipid metabolism-related gene expression in juvenile pond loach Misgurnus anguillicaudatus fed diets with different dietary soybean oil levels. JOURNAL OF FISH BIOLOGY 2018; 92:17-33. [PMID: 29148037 DOI: 10.1111/jfb.13472] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Accepted: 08/23/2017] [Indexed: 06/07/2023]
Abstract
A 10 week feeding trial was conducted to evaluate the effects of different dietary soybean oil (SO) levels on growth performance, fatty-acid composition and lipid deposition in viscera, histology and histochemistry of liver, intestine and hepatic-lipid metabolism-related gene expressions in pond loach Misgurnus anguillicaudatus juveniles. Misgurnus anguillicaudatus (mean ± s.d. mass 0·40 ± 0·01 g) were fed five experimental diets containing SO at different concentrations: 0, 20, 32, 56 and 100% SO and a diet containing 100% fish oil (100% FO). The mass gains and specific growth rates of M. anguillicaudatus fed 20% SO and 100% FO diets were significantly higher than those of the other groups (P < 0·05). The lipid content of viscera and the amount of cytoplasmic vacuolation in the liver increased with incremental dietary SO level. Meanwhile, increasing dietary SO levels up-regulated the messenger (m)RNA levels of lipogenic genes (such as Δ6fad, scd, pparγ, fas and srebp-1) and down-regulated the mRNA levels of the lipolytic genes (such as pparα, cpt1, atgl and hsl) in the liver. The percentage of 20:4n-6 significantly (P < 0·05) increased with increasing dietary SO level, which might be correlated with the up-regulation of the mRNA level of Δ6fad. The highest levels of dietary SO, however, had a negative effect on growth performance, lipid deposition of viscera and histology and histochemstry of liver and intestine. The increased lipid accumulation induced by incremental dietary SO level probably occurred through different strategies for lipid metabolism as a result of competition between lipolysis and lipogenesis and between export and import of lipids in this species.
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Affiliation(s)
- Y Li
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
| | - Z Jia
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
| | - X Liang
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
| | - D Matulic
- Department for Fisheries, Beekeeping, Game Management and Special Zoology, Faculty of Agriculture, University of Zagreb, Zagreb, Croatia
| | - M Hussein
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
- Faculty of Veterinary Medicine, Benha University, Egypt
| | - J Gao
- College of Fisheries, Key Lab of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education/Key Lab of Freshwater Animal Breeding, Ministry of Agriculture, Huazhong Agricultural University, Wuhan, 430070, China
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40
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ALJohani AM, Syed DN, Ntambi JM. Insights into Stearoyl-CoA Desaturase-1 Regulation of Systemic Metabolism. Trends Endocrinol Metab 2017; 28:831-842. [PMID: 29089222 PMCID: PMC5701860 DOI: 10.1016/j.tem.2017.10.003] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 10/09/2017] [Accepted: 10/10/2017] [Indexed: 12/15/2022]
Abstract
Stearoyl-coenzyme A desaturase 1 (SCD1) is a central regulator of fuel metabolism and may represent a therapeutic target to control obesity and the progression of related metabolic diseases including type 2 diabetes and hepatic steatosis. SCD1 catalyzes the synthesis of monounsaturated fatty acids (MUFAs), mainly oleate and palmitoleate, which are important in controlling weight gain in response to feeding high carbohydrate diets. In this review, we evaluate the role of SCD1 isoform in the regulation of lipid and glucose metabolism in metabolic tissues. These highlights of recent findings are aimed toward advancing our understanding of the role of SCD1 in the development of metabolic diseases, which may help evaluate the possible health outcomes of modulating MUFA levels through targeting SCD1 activity.
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Affiliation(s)
- Ahmed M ALJohani
- School of Medicine and Public Health, Endocrinology and Reproductive Physiology Graduate Training Program, University of Wisconsin-Madison, Madison, WI 53706, USA; King Saud bin Abdulaziz University for Health Sciences, National Guard Health Affairs, Riyadh, 11426, Saudi Arabia
| | - Deeba N Syed
- School of Medicine and Public Health, Department of Dermatology, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - James M Ntambi
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI 53706, USA; Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, WI 53706, USA.
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41
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Paton CM, Vaughan RA, Selen Alpergin ES, Assadi-Porter F, Dowd MK. Dihydrosterculic acid from cottonseed oil suppresses desaturase activity and improves liver metabolomic profiles of high-fat-fed mice. Nutr Res 2017; 45:52-62. [PMID: 29037332 DOI: 10.1016/j.nutres.2017.06.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 05/30/2017] [Accepted: 06/27/2017] [Indexed: 01/15/2023]
Abstract
Polyunsaturated fatty acid (PUFA)-rich diets are thought to provide beneficial effects toward metabolic health in part through their bioactive properties. We hypothesized that increasing PUFA intake in mice would increase peroxisome proliferator activated receptor delta (PPARδ) expression and activity, and we sought to examine the effect of different PUFA-enriched oils on muscle PPARδ expression. One of the oils we tested was cottonseed oil (CSO) which is primarily linoleic acid (53%) and palmitic acid (24%). Mice fed a CSO-enriched diet (50% energy from fat) displayed no change in muscle PPARδ expression; however, in the liver, it was consistently elevated along with its transcriptional coactivator Pgc-1. Male mice were fed chow or CSO-, saturated fat (SFA)-, or linoleic acid (18:2)-enriched diets that were matched for macronutrient content for 4 weeks. There were no differences in food intake, body weight, fasting glucose, glucose tolerance, or energy expenditure between chow- and CSO-fed mice, whereas SFA-fed mice had increased fat mass and 18:2-fed mice were less glucose tolerant. Metabolomic analyses revealed that the livers of CSO-fed mice closely matched those of chow-fed but significantly differed from SFA- and 18:2-enriched groups. Fatty acid composition of the diets and livers revealed an impairment in desaturase activity and the presence of dihydrosterculic acid (DHSA) in the CSO-fed mice. The effect of DHSA on PPARδ and stearoyl-CoA desaturase-1 expression mimicked that of the CSO-fed mice. Taken together, these data suggest that DHSA from CSO may be an effective means to increase PPARδ expression with concomitant suppression of liver stearoyl-CoA desaturase-1 activity.
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Affiliation(s)
- Chad M Paton
- Department of Food Science & Technology, University of Georgia, Athens, GA; Foods & Nutrition, University of Georgia, Athens, GA; Texas Tech University.
| | | | | | | | - Michael K Dowd
- Southern Regional Research Center, ARS, USDA, New Orleans, LA
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42
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Huang W, Zhang X, Li A, Xie L, Miao X. Differential regulation of mRNAs and lncRNAs related to lipid metabolism in two pig breeds. Oncotarget 2017; 8:87539-87553. [PMID: 29152100 PMCID: PMC5675652 DOI: 10.18632/oncotarget.20978] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 08/27/2017] [Indexed: 01/02/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) can regulate lipid metabolism and adipogenesis. However, there is little research on the role of lncRNAs in fat deposition in pig. In this study, RNA-seq technology was used to analyze the gene expression profiles of subcutaneous adipose tissue in Laiwu (LW) and Large White (LY) pigs. Then, key lncRNAs and genes associated with lipid metabolism and adipogenic differentiation were identified. Fifty four lncRNAs and 482 known mRNAs were differentially expressed in the two pig breeds. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway analyses revealed that differentially expressed genes and the target genes of differentially expressed lncRNAs were significantly enriched in PPAR signaling pathway and biological processes including fat cell differentiation and fatty acid metabolism. Key lncRNAs might regulate adipogenic differentiation and fatty acid metabolism by regulating genes involved in above signaling pathway and biological processes. Specifically, XLOC_014379, XLOC_011279, XLOC_064871, XLOC_019518 and XLOC_013639 might target SCD, LPIN1, TRIB3, EGR2 and FABP3, respectively, and then play critical regulatory role. These results are useful for understanding fat deposition in pig, breeding livestock with high quality meat, and preventing and treating lipid metabolic disease.
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Affiliation(s)
- Wanlong Huang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiuxiu Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Ai Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Lingli Xie
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Xiangyang Miao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
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43
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Zuo Q, Jin K, Song J, Zhang Y, Li B. Cloning, expression pattern analysis, and subcellular localization of Capra hircus SCD1 gene with production of transgenic mice. J Cell Biochem 2017; 119:2240-2247. [PMID: 28914467 DOI: 10.1002/jcb.26386] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 08/23/2017] [Indexed: 11/07/2022]
Abstract
This study aimed to clone the Stearoyl-CoA desaturase 1 (SCD1) gene derived from Xuhuai goat (Capra hircus), and analyze the sub-cellular localization in cells and tissues. The cDNA was cloned by reverse transcription polymerase chain reaction (RT-PCR). pEGFP-SCD1 vector was constructed to detect sub-cellular localization and tissue distribution. pEGFP-SCD1 was transfected into NIH-3T3 cells using polyethylene imine (PEI) and observed under fluorescence inversion microscope system 48 h after transfection. The expression level of SCD1 was detected by RT-PCR. Testicular injection was used to produce transgenic mice with goat SCD1 gene. DNA and protein were extracted from the tail tissue of F1 mice. The expression of exogenous gene in the F1 generation was detected in both DNA and protein. The results showed that the coding sequence (CDS) fragments of C. hircus SCD1 gene was 1074 bp and encodes 360 amino acids. RT-PCR results showed that SCD1 could be expressed successfully in NIH-3T3 cells in vitro. Sub-cellular localization analysis showed that pEGFP-SCD1 fusion protein located in the cytoplasm. It can be concluded that transgenic mice with goat SCD1 expressed in sperm and tail tissue was successfully produced in the F1 mice generation.
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Affiliation(s)
- Qisheng Zuo
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Kai Jin
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Jiuzhou Song
- Animal and Avian Sciences, University of Maryland, College Park, Maryland
| | - Yani Zhang
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
| | - Bichun Li
- Key Laboratory of Animal Breeding Reproduction and Molecular Design for Jiangsu Province, College of Animal Science and Technology, Yangzhou University, Yangzhou, China
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44
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Dietary Fatty Acid Composition Modulates Obesity and Interacts with Obesity-Related Genes. Lipids 2017; 52:803-822. [DOI: 10.1007/s11745-017-4291-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 08/18/2017] [Indexed: 12/22/2022]
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45
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Papandreou C, Bullò M, Tinahones FJ, Martínez-González MÁ, Corella D, Fragkiadakis GA, López-Miranda J, Estruch R, Fitó M, Salas-Salvadó J. Serum metabolites in non-alcoholic fatty-liver disease development or reversion; a targeted metabolomic approach within the PREDIMED trial. Nutr Metab (Lond) 2017; 14:58. [PMID: 28878811 PMCID: PMC5581927 DOI: 10.1186/s12986-017-0213-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/16/2017] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Limited prospective studies have examined changes in non-alcoholic fatty-liver disease (NAFLD) related serum-metabolites and none the effects of NAFLD-reversion. We aimed to evaluate whether perturbations in metabolites indicate predisposition to NAFLD development and to assess the effects of NAFLD reversion on metabolite profiles. METHODS A targeted liquid-chromatography tandem mass-spectrometry metabolic profiling (n = 453 metabolites) approach was applied, using serum from 45 subjects of the PREDIMED study, at baseline and after a median 3.8-year follow-up. NAFLD was determined using the hepatic steatosis index; with three groups classified and studied: Group 1, not characterized as NAFLD cases during the follow-up (n = 15); Group 2, characterized as NAFLD during the follow-up (n = 15); Group 3, characterized as NAFLD-reversion during the follow-up (n = 15). RESULTS At baseline, significantly lower storage and transport lipids (triacylglycerols and cholesteryl esters), several monoetherglycerophosphocholines, acylglycerophosphocholines, ceramides and ceramide to sphingomyelin ratio (P < 0.05), were found; whereas a higher L-cystine to L-glutamate ratio (P < 0.05) was observed, in group 2 as compared to group 1.P-ether acylglycerophosphocholines, ceramides and sphingolipids were significantly different betweengroup 3 and group 1 (P < 0.05). Higher 16:1n-7 to 16:0, and 18:0 to16:0 ratio (P < 0.05), while lower 18:1n-9 to 18:0, 16:0 to 18:2n-6, and 18:3n-6 to 18:2n-6 ratio (P < 0.05) were observed in the final, compared to baseline values, in groups 2 and 3. CONCLUSION The rearrangement of lipid biosynthesis and serum transport may indicate predisposition to NAFLD development. Despite an expected reduction of hepatic lipotoxicity and improved hepatic function in the participants of the study characterized as NAFLD-reversing, the side effects of NAFLD in serum metabolic profiles remained present. TRIAL REGISTRATION The trial is registered at ISRCTN35739639. Registration date: 5th October 2005.
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Affiliation(s)
- Christopher Papandreou
- Human Nutrition Department, Hospital Universitari Sant Joan, Institut d’Investigació Sanitaria Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - Mònica Bullò
- Human Nutrition Department, Hospital Universitari Sant Joan, Institut d’Investigació Sanitaria Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Cardiovascular and Nutrition Research Group, Institut de Recerca Hospital del Mar, Barcelona, Spain
| | - Francisco José Tinahones
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Clínico Virgen de la Victoria/Universidad de Málaga, Malaga, Spain
| | - Miguel Ángel Martínez-González
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Department of Preventive Medicine and Public Health, School of Medicine, University of Navarra, Pamplona, Spain
| | - Dolores Corella
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Department of Preventive Medicine, University of Valencia, Valencia, Spain
| | | | - José López-Miranda
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Lipid and Atherosclerosis Unit, Department of Internal Medicine, Reina Sofia University Hospital, IMIBIC, University of Cordoba, Cordoba, Spain
| | - Ramon Estruch
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Department of Internal Medicine, Hospital Clínic, IDIBAPS, Barcelona, Spain
| | - Montserrat Fitó
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Human Nutrition Unit, Faculty of Medicine and Health Sciences, Universitat Rovira i Virgili, St/Sant Llorenç 21, 43201 Reus, Spain
| | - Jordi Salas-Salvadó
- Human Nutrition Department, Hospital Universitari Sant Joan, Institut d’Investigació Sanitaria Pere Virgili, Universitat Rovira i Virgili, Reus, Spain
- Ciber Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Cardiovascular and Nutrition Research Group, Institut de Recerca Hospital del Mar, Barcelona, Spain
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Hadj Ahmed S, Kaoubaa N, Kharroubi W, Zarrouk A, Najjar MF, Batbout F, Gamra H, Lizard G, Hammami M. Association of plasma fatty acid alteration with the severity of coronary artery disease lesions in Tunisian patients. Lipids Health Dis 2017; 16:154. [PMID: 28806974 PMCID: PMC5557073 DOI: 10.1186/s12944-017-0538-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Accepted: 08/02/2017] [Indexed: 11/12/2022] Open
Abstract
Background Some factors related to diet are known to be involved in the progression of atherosclerosis in humans. Methods The relationship between plasma fatty acid (FA) levels and the severity of coronary artery disease (CAD), evaluated by Gensini score (GS), was investigated in CAD Tunisian patients compared to controls. Lipid profiles were analyzed, GS was calculated in CAD and non-CAD patients and compared to controls. Results CAD patients showed an alteration of conventional lipid parameters. In fact, a significant increase of plasmatic triglycerides (TG) level, atherogenic lipid ratios (TC/HDL-C,TG/HDL-C, LDL-C/HDL-C); and ApoB/ApoA1 was observed in the CAD group comparatively to controls (p < 0.001). Gensini score was showed to be a good indicator to evaluate cholesterol metabolism disorders associated with HDL-C since a negative association was found between HDL-C levels and GS for the two groups of patients. In addition, in the relation with FA and classes of FA, a negative association was found as expected, between Gensini score and total MUFA, PUFA n-3, total PUFA, GLA, DGLA and DHA. Furthermore, a positive association with stearic and erucic acid was found. Suggests that, GS is also a good indicator to evaluate FA metabolic disorders. Higher elongation index and modifications of desaturation index (D5D, D6D and D9D) were observed in patients compared to controls, supporting FA metabolism modifications. Conclusions In conclusion, although that Tunisian population appears to follow the Mediterranean diet, variations of plasmatic FA levels and desaturase activities in CAD patients highlights an alteration of FA metabolism and suggests an important implication of certain FA in the development of atherosclerosis.
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Affiliation(s)
- Samia Hadj Ahmed
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia.
| | - Nadia Kaoubaa
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
| | - Wafa Kharroubi
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
| | - Amira Zarrouk
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
| | | | - Fathi Batbout
- Cardiology Department CHU Fattouma Bourguiba Monastir- Tunisia, Monastir, Tunisia
| | - Habib Gamra
- Cardiology Department CHU Fattouma Bourguiba Monastir- Tunisia, Monastir, Tunisia
| | - Gerard Lizard
- Team 'Biochemistry of Peroxisome, Inflammation and Lipid Metabolism' EA 7270 /University of Bourgogne-Franche Comté / INSERM, Dijon, France
| | - Mohamed Hammami
- Faculty of Medicine, Research Laboratory LR12ES05, Lab-NAFS 'Nutrition - Functional Food & Vascular Health', University of Monastir (Tunisia), Avicene st, 5019, Monastir, Tunisia
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47
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Hepatic metabolic effects of Curcuma longa extract supplement in high-fructose and saturated fat fed rats. Sci Rep 2017; 7:5880. [PMID: 28724959 PMCID: PMC5517472 DOI: 10.1038/s41598-017-06220-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Accepted: 06/08/2017] [Indexed: 12/11/2022] Open
Abstract
The metabolic effects of an oral supplementation with a Curcuma longa extract, at a dose nutritionally relevant with common human use, on hepatic metabolism in rats fed a high fructose and saturated fatty acid (HFS) diet was evaluated. High-resolution magic-angle spinning NMR and GC/MS in combination with multivariate analysis have been employed to characterize the NMR metabolite profiles and fatty acid composition of liver tissue respectively. The results showed a clear discrimination between HFS groups and controls involving metabolites such as glucose, glycogen, amino acids, acetate, choline, lysophosphatidylcholine, phosphatidylethanolamine, and β-hydroxybutyrate as well as an increase of MUFAs and a decrease of n-6 and n-3 PUFAs. Although the administration of CL did not counteract deleterious effects of the HFS diet, some metabolites, namely some n-6 PUFA and n-3 PUFA, and betaine were found to increase significantly in liver samples from rats having received extract of curcuma compared to those fed the HFS diet alone. This result suggests that curcuminoids may affect the transmethylation pathway and/or osmotic regulation. CL extract supplementation in rats appears to increase some of the natural defences preventing the development of fatty liver by acting on the choline metabolism to increase fat export from the liver.
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48
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Feng C, Li D, Jiang L, Liu X, Li Q, Geng C, Sun X, Yang G, Yao X, Chen M. Citreoviridin induces triglyceride accumulation in hepatocytes through inhibiting PPAR-α in vivo and in vitro. Chem Biol Interact 2017. [PMID: 28645467 DOI: 10.1016/j.cbi.2017.06.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Citreoviridin (CIT) is a mycotoxin produced by Penicillum citreonigrum, Aspergillus terreus and Eupenicillium ochrosalmoneum. CIT occurs naturally in moldy rice and corn. CIT is associated with the development of atherosclerosis in the general population. Alteration in hepatic lipid metabolism is a pathogenic factor in atherosclerosis. However the effect and the underlying mechanism of CIT on hepatic lipid metabolism are largely unknown. In this study, we reported that CIT induced triglyceride accumulation in mice liver and human liver HepG2 cells as shown in oil red O staining. CIT (0.1 mg/kg-0.3 mg/kg) for 6 weeks elevated liver triglyceride contents in mice. CIT inhibited the transactivation activity of peroxisome proliferator-activated receptor-α (PPAR-α) in hepatocyte in vivo and in vitro, as shown by the reduced mRNA levels of PPAR-α target genes which play key roles in lipid metabolism in various aspects. PPAR-α agonist fenofibrate attenuated CIT-induced triglyceride accumulation in HepG2 cells. Furthermore, CIT increased serum total cholesterol/high-density lipoprotein cholesterol ratio, a strong risk factor for cardiovascular disease. In summary, we reported that CIT induced PPAR-α-dependent hepatic triglyceride accumulation and dyslipidemia. Our data will provide new mechanistic insights into CIT-induced lipid alterations.
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Affiliation(s)
- Chang Feng
- Department of Preventive Medicine, Dalian Medical University, Dalian, China
| | - Dandan Li
- Department of Preventive Medicine, Dalian Medical University, Dalian, China
| | - Liping Jiang
- Liaoning Anti-Degenerative Diseases Natural Products Engineering Research Center, Dalian Medical University, Dalian, China
| | - Xiaofang Liu
- Department of Preventive Medicine, Dalian Medical University, Dalian, China
| | - Qiujuan Li
- Department of Preventive Medicine, Dalian Medical University, Dalian, China
| | - Chengyan Geng
- Department of Preventive Medicine, Dalian Medical University, Dalian, China
| | - Xiance Sun
- Department of Preventive Medicine, Dalian Medical University, Dalian, China; Liaoning Anti-Degenerative Diseases Natural Products Engineering Research Center, Dalian Medical University, Dalian, China
| | - Guang Yang
- Department of Preventive Medicine, Dalian Medical University, Dalian, China
| | - Xiaofeng Yao
- Department of Preventive Medicine, Dalian Medical University, Dalian, China; Department of Medicine, University of California San Diego, La Jolla, United States.
| | - Min Chen
- Department of Preventive Medicine, Dalian Medical University, Dalian, China.
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49
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Fayezi S, Ghaffari Novin M, Darabi M, Norouzian M, Nouri M, Farzadi L, Darabi M. Primary Culture of Human Cumulus Cells Requires Stearoyl-Coenzyme A Desaturase 1 Activity for Steroidogenesis and Enhancing Oocyte In Vitro Maturation. Reprod Sci 2017; 25:844-853. [PMID: 28345489 DOI: 10.1177/1933719117698578] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Stearoyl-coenzyme A desaturase 1 (SCD1) is a key enzyme in lipid metabolism and is expressed in cumulus cells. The objective of the present study was to evaluate the effect of SCD1 inhibition in human cumulus cells on triglyceride content, steroidogenesis, and oocyte in vitro maturation. Human cumulus cells were exposed to SCD1 inhibitor CAY10566 (SCDinhib) alone or in combination with oleic acid in primary culture. The SCDinhib markedly suppressed triglyceride accumulation (-47%, P = .01), aromatase gene expression (-36%, P = .02), and estradiol production (-49%, P = .01) even at a dose not affecting cell viability and apoptosis. Human immature oocytes at the germinal vesicle (GV) stage were cocultured with pretreated cumulus cells. The rate of oocytes reaching the metaphase II stage was significantly lower in coculture with SCDinhib-treated cumulus cells than with control cumulus cells (-18%, P < .01), which recovered by oleic acid supplementation. This finding on in vitro maturation rate was also reproducible with mouse GV oocytes. The results suggest that SCD1 activity is required for cumulus cell lipid storage and steroidogenesis. In addition, oocyte maturation is negatively affected by SCD1 inhibition in cumulus cells, possibly due to a deficient lipid-mediated paracrine support.
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Affiliation(s)
- Shabnam Fayezi
- 1 Department of Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marefat Ghaffari Novin
- 1 Department of Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Darabi
- 2 Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohsen Norouzian
- 1 Department of Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Nouri
- 3 Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Laya Farzadi
- 4 Women's Reproductive Health Research Center, Women University Hospital, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Maryam Darabi
- 5 UMR INSERM-UPMC 1166 ICAN, Pavillon Benjamin Delessert, Hôpital de la Pitié, Paris, France
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50
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Reynés B, Palou M, Palou A. Gene expression modulation of lipid and central energetic metabolism related genes by high-fat diet intake in the main homeostatic tissues. Food Funct 2017; 8:629-650. [DOI: 10.1039/c6fo01473a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
HF diet feeding affects the energy balance by transcriptional metabolic adaptations, based in direct gene expression modulation, perinatal programing and transcriptional factor regulation, which could be affected by the animal model, gender or period of dietary treatment.
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Affiliation(s)
- Bàrbara Reynés
- Laboratory of Molecular Biology
- Nutrition and Biotechnology
- Universitat de les Illes Balears and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn)
- Palma de Mallorca
- Spain
| | - Mariona Palou
- Alimentómica SL (Spin off no. 001 from UIB)
- Palma Mallorca
- Spain
| | - Andreu Palou
- Laboratory of Molecular Biology
- Nutrition and Biotechnology
- Universitat de les Illes Balears and CIBER de Fisiopatología de la Obesidad y Nutrición (CIBERobn)
- Palma de Mallorca
- Spain
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