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Reynés B, Cifre M, Palou A, Oliver P. Perinatal Treatment with Leptin, but Not Celastrol, Protects from Metabolically Obese, Normal-Weight Phenotype in Rats. Nutrients 2022; 14:nu14112277. [PMID: 35684076 PMCID: PMC9183119 DOI: 10.3390/nu14112277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/23/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022] Open
Abstract
Perinatal nutrition has a well-known influence on obesity susceptibility. We previously demonstrated the protective anti-obesity effects of perinatal leptin administration. Celastrol is a natural compound acting as a leptin sensitizer with anti-obesity effects when administered in adult animals. Here, we aimed to determine if perinatal treatment with leptin, celastrol, or their combination was able to improve metabolic health in animals fed an isocaloric high-fat (HF) diet. Leptin and/or celastrol or their vehicle were administered orally to rats during the suckling period. After weaning, animals were chronically pair-fed with an HF diet provided isocaloric to the intake of a normal-fat diet by control animals to avoid obesity. Isocaloric HF feeding in vehicle-treated animals resulted in metabolic features characteristic of the metabolically obese, normal-weight (MONW) phenotype, i.e., obesity-related disturbances without increased body weight. Leptin treatment prevented liver fat deposition and insulin resistance, induced greater insulin and leptin signaling capacity, decreased gene expression of orexigenic signals at the hypothalamic level, and induced browning in retroperitoneal adipose tissue. However, celastrol treatment did not provide any protective effect and resulted in greater size of the retroperitoneal adipose depot, higher circulating glucose and insulin levels, and decreased leptin sensitivity capacity in adipose tissue. The co-administration of leptin ameliorated the negative effects of celastrol on the retroperitoneal depot, inducing browning and decreasing its size. In conclusion, the perinatal administration of leptin, but not celastrol, provided protection against the consequences of dietary unbalances leading to an MONW phenotype in adulthood.
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Affiliation(s)
- Bàrbara Reynés
- Nutrigenomics, Biomarkers and Risk Evaluation Group, University of the Balearic Islands, 07122 Palma, Spain; (B.R.); (M.C.); (P.O.)
- Health Research Institute of the Balearic Islands (IdISBa), 07010 Palma, Spain
| | - Margalida Cifre
- Nutrigenomics, Biomarkers and Risk Evaluation Group, University of the Balearic Islands, 07122 Palma, Spain; (B.R.); (M.C.); (P.O.)
- CIBER of Pathophysiology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Andreu Palou
- Nutrigenomics, Biomarkers and Risk Evaluation Group, University of the Balearic Islands, 07122 Palma, Spain; (B.R.); (M.C.); (P.O.)
- Health Research Institute of the Balearic Islands (IdISBa), 07010 Palma, Spain
- CIBER of Pathophysiology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-971-173-170
| | - Paula Oliver
- Nutrigenomics, Biomarkers and Risk Evaluation Group, University of the Balearic Islands, 07122 Palma, Spain; (B.R.); (M.C.); (P.O.)
- Health Research Institute of the Balearic Islands (IdISBa), 07010 Palma, Spain
- CIBER of Pathophysiology of Obesity and Nutrition (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Yeh JH, Tung YT, Yeh YS, Chien YW. Effects of Dietary Fatty Acid Composition on Lipid Metabolism and Body Fat Accumulation in Ovariectomized Rats. Nutrients 2021; 13:nu13062022. [PMID: 34208400 PMCID: PMC8231186 DOI: 10.3390/nu13062022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/05/2021] [Accepted: 06/10/2021] [Indexed: 01/21/2023] Open
Abstract
Background: Obesity is a state of excess energy storage resulting in body fat accumulation, and postmenopausal obesity is a rising issue. In this study using ovariectomized (OVX) rats, we mimicked low estrogen levels in a postmenopausal state in order to investigate the effects of different amounts and types of dietary fatty acids on body fat accumulation and body lipid metabolism. Methods: At 9 weeks of age, rats (n = 40) were given an ovariectomy, eight of which were sham-operated to serve as a control group (S). We then divided OVX rats into four different intervention groups: diet with 5% soybean oil (C), and diet with 5% (L), 15% (M), and 20% (H) (w/w) experimental oil, containing 60% monounsaturated fatty acids (MUFAs) and with a polyunsaturated/saturated fatty acid (P/S) ratio of 5. Results: After OVX, compared to the S group, the C group showed significantly higher body weight, and insulin and leptin levels. Compared to the C group, the H group had lower hepatic triglyceride level and FAS enzyme activity, and higher hepatic ACO and CPT-1 gene expressions and enzyme activities. Conclusions: An OVX leads to severe weight gain and lipid metabolism abnormalities, while according to previous studies, high fat diet may worsen the situation. However, during our experiment, we discovered that the experimental oil mixture with 60% MUFAs and P/S = 5 may ameliorate these imbalances.
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Affiliation(s)
- Jhih-Han Yeh
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan;
| | - Yu-Tang Tung
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 40227, Taiwan;
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 11031, Taiwan
| | - Yu-Sheng Yeh
- Department of Medicine, Cardiovascular Division, Washington University School of Medicine, St. Louis, MO 63112, USA;
| | - Yi-Wen Chien
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei 11031, Taiwan;
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 11031, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Research Center of Geriatric Nutrition, College of Nutrition, Taipei Medical University, Taipei 11031, Taiwan
- Correspondence: ; Tel.: +886-2-2736-1661 (ext. 6556); Fax: +886-2-2737-3112
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Che YY, Xia XJ, He BP, Gao YY, Ren WB, Liu HT, Liu JF, Huang TH, Han WY, Lei LC. A corn straw-based diet increases release of inflammatory cytokines in peripheral blood mononuclear cells of dairy cows. J Zhejiang Univ Sci B 2019; 19:796-806. [PMID: 30269447 DOI: 10.1631/jzus.b1700571] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Recent studies have shown that diet can affect the body's immunity. Roughage of dairy cows consists of a variety of plant materials which make different contributions to health. This study investigated the effect of different roughages on the immunity of dairy cows. Serum, peripheral blood mononuclear cells (PBMCs), and milk samples were collected from 20 multiparous mid-lactation cows fed mixed forage (MF)- or corn straw (CS)-based diets. Expression profile analysis was used to detect the differentially expressed genes (DEGs) from PBMCs. The results showed that milk protein in the MF group increased to 3.22 g/100 ml, while that of the CS group milk was 2.96 g/100 ml; by RNA sequencing, it was found that 1615 genes were differentially expressed between the CS group and the MF group among the 24 027 analyzed probes. Gene ontology (GO) and pathway analysis of DEGs suggested that these genes (especially genes coding cytokines, chemokine and its receptors) are involved in the immune response. Results were confirmed at the protein level via detecting the levels of interleukin-2 (IL-2), IL-6, IL-10, IL-12, leptin (LEP), interferon-γ (IFN-γ), transforming growth factor-β1 (TGF-β1), and tumor necrosis factor-α (TNF-α) in peripheral blood by enzyme-linked immunosorbent assay (ELISA) and radioimmunoassay analysis. Our data supported the conclusions that the protein content in milk of the MF group was higher than that of the CS group, the CS-based diets induced more release of cytokines than the MF-based diets in dairy cows' PBMCs, and milk protein content may be affected by cytokines.
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Affiliation(s)
- Yan-Yi Che
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xiao-Jing Xia
- College of Veterinary Medicine, Jilin University, Changchun 130062, China.,College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology, Xinxiang 453003, China
| | - Bo-Ping He
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yuan-Yuan Gao
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Wen-Bo Ren
- Department of Clinical Laboratory, the First Hospital, Jilin University, Changchun 130062, China
| | - Hong-Tao Liu
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jian-Fang Liu
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Ting-Hao Huang
- College of Animal Science, Jilin University, Changchun 130062, China
| | - Wen-Yu Han
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Lian-Cheng Lei
- College of Veterinary Medicine, Jilin University, Changchun 130062, China
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Chan KW, Ismail M, Mohd Esa N, Imam MU, Ooi DJ, Khong NMH. Dietary supplementation of defatted kenaf (Hibiscus cannabinus L.) seed meal and its phenolics-saponins rich extract effectively attenuates diet-induced hypercholesterolemia in rats. Food Funct 2018; 9:925-936. [PMID: 29313544 DOI: 10.1039/c7fo01109a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Kenaf is one of the important commercial fiber crops worldwide and defatted kenaf seed meal (DKSM) is a secondary by-product from the kenaf industry. Thus, efforts to turn this low-cost agricultural waste into value-added functional food ingredients will definitely bring advantageous impacts to the community health, environment and economy. The present study was aimed to investigate the cardioprotective properties of DKSM and its phenolics-saponins rich extract (PSRE) in diet-induced hypercholesterolemic rat model. Hypercholesterolemia was induced in Sprague-Dawley rats via atherogenic diet feeding and dietary interventions were conducted by incorporating DKSM (15% and 30%) and equivalent levels of PSRE (2.3% and 4.6%, respectively, equivalent to the total content of phenolics and saponins in DKSM groups) into the atherogenic diets. After 10 weeks of DKSM and PSRE supplementation, the hepatosomatic index, hepatosteatosis, serum lipid profile, Castelli risk indexes as well as hepatic and renal functions of hypercholesterolemic rats were significantly improved (p < 0.05). Besides, the levels of hepatic Hmgcr and serum Pcsk9 were lowered, along with transcriptional upregulations of hepatic Cyp7a1, Abca1, Lcat, ApoA2 and ApoE (p < 0.05). The gene expression of hepatic Ldlr was marginally enhanced by DKSM supplementation (p > 0.05), but superiorly upregulated by PSRE (p < 0.05). The combined results showed that hypercholesterolemia and the atherogenic risk in rats were effectively attenuated by DKSM and PSRE supplementation, possibly via modulations of multiple vital processes in hepatic cholesterol metabolism. Furthermore, phenolics and saponins may be the bioactives conferring DKSM and PSRE with their anti-hypercholesterolemic properties. In conclusion, DKSM and PSRE are prospective cardioprotective functional food ingredients for hypercholesterolemic individuals.
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Affiliation(s)
- Kim Wei Chan
- Institute of Bioscience, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
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Black AJ, Ravi S, Jefferson LS, Kimball SR, Schilder RJ. Dietary Fat Quantity and Type Induce Transcriptome-Wide Effects on Alternative Splicing of Pre-mRNA in Rat Skeletal Muscle. J Nutr 2017; 147:1648-1657. [PMID: 28768832 PMCID: PMC5572497 DOI: 10.3945/jn.117.254482] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 06/07/2017] [Accepted: 06/28/2017] [Indexed: 12/18/2022] Open
Abstract
Background: Fat-enriched diets produce metabolic changes in skeletal muscle, which in turn can mediate changes in gene regulation.Objective: We examined the high-fat-diet-induced changes in skeletal muscle gene expression by characterizing variations in pre-mRNA alternative splicing.Methods: Affymetrix Exon Array analysis was performed on the transcriptome of the gastrocnemius/plantaris complex of male obesity-prone Sprague-Dawley rats fed a 10% or 60% fat (lard) diet for 2 or 8 wk. The validation of exon array results was focused on troponin T (Tnnt3). Tnnt3 splice form analyses were extended in studies of rats fed 10% or 30% fat diets across 1- to 8-wk treatment periods and rats fed 10% or 45% fat diets with fat sources from lard or mono- or polyunsaturated fats for 2 wk. Nuclear magnetic resonance (NMR) was used to measure body composition.Results: Consumption of a 60% fat diet for 2 or 8 wk resulted in alternative splicing of 668 and 726 pre-mRNAs, respectively, compared with rats fed a 10% fat diet. Tnnt3 transcripts were alternatively spliced in rats fed a 60% fat diet for either 2 or 8 wk. The high-fat-diet-induced changes in Tnnt3 alternative splicing were observed in rats fed a 30% fat diet across 1- to 8-wk treatment periods. Moreover, this effect depended on fat type, because Tnnt3 alternative splicing occurred in response to 45% fat diets enriched with lard but not in response to diets enriched with mono- or polyunsaturated fatty acids. Fat mass (a proxy for obesity as measured by NMR) did not differ between groups in any study.Conclusions: Rat skeletal muscle responds to overconsumption of dietary fat by modifying gene expression through pre-mRNA alternative splicing. Variations in Tnnt3 alternative splicing occur independently of obesity and are dependent on dietary fat quantity and suggest a role for saturated fatty acids in the high-fat-diet-induced modifications in Tnnt3 alternative splicing.
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Affiliation(s)
- Adam J Black
- Intercollege Graduate Degree Program in Physiology and,Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA; and
| | - Suhana Ravi
- Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA; and
| | - Leonard S Jefferson
- Intercollege Graduate Degree Program in Physiology and,Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA; and
| | - Scot R Kimball
- Intercollege Graduate Degree Program in Physiology and,Department of Cellular and Molecular Physiology, Penn State College of Medicine, Hershey, PA; and
| | - Rudolf J Schilder
- Departments of Entomology and Biology, Penn State University, University Park, State College, PA
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Long-term intake of a high-protein diet increases liver triacylglycerol deposition pathways and hepatic signs of injury in rats. J Nutr Biochem 2017; 46:39-48. [DOI: 10.1016/j.jnutbio.2017.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 01/07/2017] [Accepted: 04/11/2017] [Indexed: 12/24/2022]
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7
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Rocha-Rodrigues S, Gonçalves IO, Beleza J, Ascensão A, Magalhães J. Effects of endurance training on autophagy and apoptotic signaling in visceral adipose tissue of prolonged high fat diet-fed rats. Eur J Nutr 2017; 57:2237-2247. [PMID: 28699087 DOI: 10.1007/s00394-017-1500-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Accepted: 06/30/2017] [Indexed: 01/29/2023]
Abstract
PURPOSE Autophagy and apoptosis play critical roles in both development and tissue homeostasis in response to (patho)physiological stimuli, such as high-fat diet (HFD) and endurance training (ET). Therefore, we aimed to investigate how ET modulates autophagy and apoptotic-related signaling in visceral adipose tissue of long-standing HFD-fed rats. METHODS The study was conducted over a 17-week period on Sprague-Dawley rats, which were divided into four groups (n = 8/group): standard diet sedentary (STD+SED), high-fat diet sedentary (HFD+SED), standard diet ET (STD+ET) and high-fat diet ET (HFD+ET). After 9 weeks of dietary regimens, ET groups were trained for 8 weeks on treadmill (5 days/week at 25 m/min for 60 min/day), while maintaining dietary regimens. Autophagy and apoptotic-signaling markers in epididymal white adipose tissue (eWAT) were determined using RT-qPCR, Western blot and spectrometry techniques. RESULTS ET reduced body weight, visceral fat mass and HOMA-IR in standard and HF diet-fed animals. Moreover, ET reverted the HFD-induced increases in the percentage of larger adipocytes and also reduced the percentage of smaller adipocytes. The HFD decreased pre-adipocyte factor 1 (DLK1/PREF1) and increased the pro-apoptotic markers (Bax protein and caspase 3-like activity), while having no impact on autophagy markers. However, ET increased DLK1/PREF1 and Bcl-2 in both diet types, while decreasing Bax and caspases 9, 8 and 3-like activities in HFD feeding rats. Additionally, Beclin-1 and p62 protein significantly increased in ET groups of both diet types. CONCLUSIONS Data demonstrate that 8 weeks of ET was effective in attenuating apoptotic-related signaling in long-standing HFD-fed rats. Moreover, HFD and ET had no impact on VAT autophagy markers.
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Affiliation(s)
- Sílvia Rocha-Rodrigues
- Faculty of Sport, CIAFEL - Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal. .,Faculty of Sport Sciences, LaMetEx - Laboratory of Metabolism and Exercise, University of Porto, Porto, Portugal.
| | - Inês O Gonçalves
- Faculty of Sport, CIAFEL - Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal.,Faculty of Sport Sciences, LaMetEx - Laboratory of Metabolism and Exercise, University of Porto, Porto, Portugal
| | - Jorge Beleza
- Faculty of Sport, CIAFEL - Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal.,Faculty of Sport Sciences, LaMetEx - Laboratory of Metabolism and Exercise, University of Porto, Porto, Portugal
| | - António Ascensão
- Faculty of Sport, CIAFEL - Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal.,Faculty of Sport Sciences, LaMetEx - Laboratory of Metabolism and Exercise, University of Porto, Porto, Portugal
| | - José Magalhães
- Faculty of Sport, CIAFEL - Research Centre in Physical Activity, Health and Leisure, University of Porto, Porto, Portugal.,Faculty of Sport Sciences, LaMetEx - Laboratory of Metabolism and Exercise, University of Porto, Porto, Portugal
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8
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Rocha-Rodrigues S, Rodríguez A, Gonçalves IO, Moreira A, Maciel E, Santos S, Domingues MR, Frühbeck G, Ascensão A, Magalhães J. Impact of physical exercise on visceral adipose tissue fatty acid profile and inflammation in response to a high-fat diet regimen. Int J Biochem Cell Biol 2017; 87:114-124. [PMID: 28438715 DOI: 10.1016/j.biocel.2017.04.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 04/17/2017] [Accepted: 04/18/2017] [Indexed: 01/14/2023]
Abstract
PURPOSE Studies associate specific fatty-acids (FA) with the pathophysiology of inflammation. We aimed to analyze the impact of exercise on adipose tissue FA profile in response to a high-fat diet (HFD) and to ascertain whether these exercise-induced changes in specific FA have repercussions on obesity-related inflammation. METHODS Sprague-Dawley rats were assigned into sedentary, voluntary physical-activity (VPA) and endurance training (ET) groups fed a standard (S, 35kcal% fat) or high-fat (71kcal% fat) diets. VPA-animals had unrestricted access to wheel-running. After 9-wks, ET-animals engaged a running protocol for 8-wks, while maintained dietary treatments. The FA content in epididymal white-adipose tissue (eWAT) triglycerides was analyzed by gas-chromatography and the expression of inflammatory markers was determined using RT-qPCR, Western and slot blotting. RESULTS Eight-wks of ET reversed obesity-related anatomical features. HFD increased plasma tumor necrosis factor (TNF)-α content and eWAT monocyte chemoattractant protein (MCP)-1 protein expression. HFD decreased eWAT content of saturated FA and monounsaturated FA, while increased linoleic acid and prostaglandin E2 (PGE2) levels in eWAT. VPA decreased visceral adiposity, adipocyte size and MCP-1 in HFD-fed animals. The VPA and ET interventions diminished palmitoleic acid and increased linoleic acid in HFD-fed groups. Moreover, both interventions increased PGE2 levels in standard diet-fed groups and decreased in HFD. ET increased eWAT fatty acid desaturase 1 (FADS1) and elongase 5 (ELOVL5) protein content in both diet types. ET reduced eWAT inflammatory markers (TNF-α, IL-6), macrophage recruitment (MCP-1 and F4/80) and increased IL-10/TNF-α ratio in plasma and in eWAT in both diet types. CONCLUSIONS Exercise induced FA-specific changes independently of dietary FA composition, but only ET attenuated the inflammatory response in VAT of HFD-fed rats. Moreover, the exercise-induced FA changes did not correlate with the inflammatory response in VAT of rats submitted to HFD.
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Affiliation(s)
- Sílvia Rocha-Rodrigues
- CIAFEL - Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal.
| | - Amaia Rodríguez
- Metabolic Research Laboratory, Clínica Universidad de Navarra, Obesity & Adipobiology Group, Instituto de Investigación Sanitario de Navarra (IdiSNA), CIBEROBN, Instituto de Salud Carlos III, Pamplona, Spain
| | - Inês O Gonçalves
- CIAFEL - Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal
| | - Ana Moreira
- Mass spectrometry Centre, UI-QOPNA Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Elisabete Maciel
- Mass spectrometry Centre, UI-QOPNA Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Sónia Santos
- CICECO, Department of Chemistry, University of Aveiro, Campus Santiago, 3810-193 Aveiro, Portugal
| | - Maria R Domingues
- Mass spectrometry Centre, UI-QOPNA Department of Chemistry, University of Aveiro, Aveiro, Portugal
| | - Gema Frühbeck
- Metabolic Research Laboratory, Clínica Universidad de Navarra, Obesity & Adipobiology Group, Instituto de Investigación Sanitario de Navarra (IdiSNA), CIBEROBN, Instituto de Salud Carlos III, Pamplona, Spain; Department of Endocrinology & Nutrition, Clínica Universidad de Navarra, Pamplona, Spain
| | - António Ascensão
- CIAFEL - Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal
| | - José Magalhães
- CIAFEL - Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal
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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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10
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Díaz-Rúa R, Palou A, Oliver P. Cpt1a gene expression in peripheral blood mononuclear cells as an early biomarker of diet-related metabolic alterations. Food Nutr Res 2016; 60:33554. [PMID: 27885970 PMCID: PMC5123217 DOI: 10.3402/fnr.v60.33554] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 09/28/2016] [Accepted: 09/28/2016] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Research on biomarkers that provide early information about the development of future metabolic alterations is an emerging discipline. Gene expression analysis in peripheral blood mononuclear cells (PBMC) is a promising tool to identify subjects at risk of developing diet-related diseases. OBJECTIVE We analysed PBMC expression of key energy homeostasis-related genes in a time-course analysis in order to find out early markers of metabolic alterations due to sustained intake of high-fat (HF) and high-protein (HP) diets. DESIGN We administered HF and HP diets (4 months) to adult Wistar rats in isocaloric conditions to a control diet, mainly to avoid overweight associated with the intake of hyperlipidic diets and, thus, to be able to characterise markers of metabolically obese normal-weight (MONW) syndrome. PBMC samples were collected at different time points of dietary treatment and expression of relevant energy homeostatic genes analysed by real-time reverse transcription-polymerase chain reaction. Serum parameters related with metabolic syndrome, as well as fat deposition in liver, were also analysed. RESULTS The most outstanding results were those obtained for the expression of the lipolytic gene carnitine palmitoyltransferase 1a (Cpt1a). Cpt1a expression in PBMC increased after only 1 month of exposure to both unbalanced diets, and this increased expression was maintained thereafter. Interestingly, in the case of the HF diet, Cpt1a expression was altered even in the absence of increased body weight but correlated with alterations such as higher insulin resistance, alteration of serum lipid profile and, particularly, increased fat deposition in liver, a feature characteristic of metabolic syndrome, which was even observed in animals fed with HP diet. CONCLUSIONS We propose Cpt1a gene expression analysis in PBMC as an early biomarker of metabolic alterations associated with MONW phenotype due to the intake of isocaloric HF diets, as well as a marker of increased risk of metabolic diseases associated with the intake of HF or HP diets.
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Affiliation(s)
- Rubén Díaz-Rúa
- 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
| | - 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;
| | - Paula Oliver
- 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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11
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Ben-Dor M, Gopher A, Barkai R. Neandertals' large lower thorax may represent adaptation to high protein diet. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2016; 160:367-78. [DOI: 10.1002/ajpa.22981] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 11/10/2015] [Accepted: 02/24/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Miki Ben-Dor
- Department of Archaeology and Ancient near East Cultures; Tel Aviv University; Tel Aviv 69978 Israel
| | - Avi Gopher
- Department of Archaeology and Ancient near East Cultures; Tel Aviv University; Tel Aviv 69978 Israel
| | - Ran Barkai
- Department of Archaeology and Ancient near East Cultures; Tel Aviv University; Tel Aviv 69978 Israel
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Agnelli S, Arriarán S, Oliva L, Remesar X, Fernández-López JA, Alemany M. Modulation of rat liver urea cycle and related ammonium metabolism by sex and cafeteria diet. RSC Adv 2016. [DOI: 10.1039/c5ra25174e] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Liver amino acid metabolism decreased with cafeteria diet through lower ammonium production (even lower in females) and urea cycle activity.
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Affiliation(s)
- Silvia Agnelli
- Department of Nutrition and Food Science
- Faculty of Biology
- University of Barcelona
- 08028 Barcelona
- Spain
| | - Sofía Arriarán
- Department of Nutrition and Food Science
- Faculty of Biology
- University of Barcelona
- 08028 Barcelona
- Spain
| | - Laia Oliva
- Department of Nutrition and Food Science
- Faculty of Biology
- University of Barcelona
- 08028 Barcelona
- Spain
| | - Xavier Remesar
- Department of Nutrition and Food Science
- Faculty of Biology
- University of Barcelona
- 08028 Barcelona
- Spain
| | | | - Marià Alemany
- Department of Nutrition and Food Science
- Faculty of Biology
- University of Barcelona
- 08028 Barcelona
- Spain
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Díaz-Rúa R, Keijer J, Caimari A, van Schothorst EM, Palou A, Oliver P. Peripheral blood mononuclear cells as a source to detect markers of homeostatic alterations caused by the intake of diets with an unbalanced macronutrient composition. J Nutr Biochem 2015; 26:398-407. [PMID: 25660595 DOI: 10.1016/j.jnutbio.2014.11.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 11/04/2014] [Accepted: 11/20/2014] [Indexed: 12/29/2022]
Abstract
Peripheral blood mononuclear cells (PBMCs) are accessible in humans, and their gene expression pattern was shown to reflect overall physiological response of the body to a specific stimulus, such as diet. We aimed to study the impact of sustained intake (4months) of diets with an unbalanced macronutrient proportion (rich in fat or protein) administered isocalorically to a balanced control diet, as physiological stressors on PBMC whole-genome gene expression in rats, to better understand the effects of these diets on metabolism and health and to identify biomarkers of nutritional imbalance. Dietary macronutrient composition (mainly increased protein content) altered PBMC gene expression, with genes involved in immune response being the most affected. Intake of a high-fat (HF) diet decreased the expression of genes related to antigen recognition/presentation, whereas the high-protein (HP) diet increased the expression of these genes and of genes involved in cytokine signaling and immune system maturation/activation. Key energy homeostasis genes (mainly related to lipid metabolism) were also affected, reflecting an adaptive response to the diets. Moreover, HF diet feeding impaired expression of genes involved in redox balance regulation. Finally, we identified a common gene expression signature of 7 genes whose expression changed in the same direction in response to the intake of both diets. These genes, individually or together, constitute a potential risk marker of diet macronutrient imbalance. In conclusion, we newly show that gene expression analysis in PBMCs allows for detection of diet-induced physiological deviations that distinguish from a diet with a proper and equilibrated macronutrient composition.
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Affiliation(s)
- Rubén Díaz-Rúa
- 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
| | - Jaap Keijer
- Human and Animal Physiology, Wageningen University, Wageningen, the Netherlands
| | - Antoni Caimari
- Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus, 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.
| | - Paula Oliver
- 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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