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González-Garrido JA, García-Sánchez JR, López-Victorio CJ, Escobar-Ramírez A, Olivares-Corichi IM. Cocoa: a functional food that decreases insulin resistance and oxidative damage in young adults with class II obesity. Nutr Res Pract 2023; 17:228-240. [PMID: 37009147 PMCID: PMC10042721 DOI: 10.4162/nrp.2023.17.2.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/15/2022] [Accepted: 08/01/2022] [Indexed: 04/04/2023] Open
Abstract
BACKGROUND/OBJECTIVES Cocoa consumption is associated with health benefits due to its high content of polyphenols. However, the effects of short-term cocoa consumption remain unclear. We aimed to determine the effects generated by cocoa consumption (for 7 days) in young adults in normoweight and class II obesity. SUBJECTS/METHODS Before-and-after study was carried out in normoweight (NW) (n = 15) and class II obesity (CIIO) (n = 15) young adults. The NW and CIIO participants consumed 25 and 39 g of cocoa, respectively, per day for 7 days. The effect of cocoa consumption was evaluated on the lipid profile, insulin resistance (IR), and inflammation. Oxidative damage was also examined by assessing the biomarkers of oxidative damage in plasma. In addition, recombinant human insulin was incubated with blood obtained from the participants, and the molecular damage to the hormone was analyzed. RESULTS Cocoa consumption resulted in decreased low-density lipoprotein-cholesterol in both groups (P = 0.04), while the total cholesterol, high-density lipoprotein cholesterol, and triglycerides were maintained at the recommended levels. Initially, IR was detected in the CIIO group (homeostasis model assessment [HOMA] = 4.78 ± 0.4), which is associated with molecular damage to insulin. Interestingly, intervention with cocoa resulted in improved IR (HOMA = 3.14 ± 0.31) (P = 0.0018) as well as molecular damage to insulin. Finally, cocoa consumption significant decreased the arginase activity (P = 0.0249) in the CIIO group; this is a critical enzymatic activity in the inflammatory process associated with obesity. CONCLUSIONS The short-term consumption of cocoa improves the lipid profile, exerts anti-inflammatory effects, and protects against oxidative damage. Results of this study indicate that cocoa consumption can potentially improve IR and restore a healthy redox status.
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Affiliation(s)
- José Arnold González-Garrido
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), División Académica de Ciencias Básicas. Laboratorio de Bioquímica y Biología Molecular, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa KM. 1 Colonia la Esmeralda, Tabasco, C.P. 86690, México
| | - José Rubén García-Sánchez
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional. Laboratorio de Oncología Molecular y Estrés Oxidativo, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, C.P. 11340 Ciudad de México, México
| | - Carlos Javier López-Victorio
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), División Académica de Ciencias Básicas. Laboratorio de Bioquímica y Biología Molecular, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa KM. 1 Colonia la Esmeralda, Tabasco, C.P. 86690, México
| | - Adelma Escobar-Ramírez
- Centro de Investigación de Ciencia y Tecnología Aplicada de Tabasco (CICTAT), División Académica de Ciencias Básicas. Laboratorio de Bioquímica y Biología Molecular, Universidad Juárez Autónoma de Tabasco, Carretera Cunduacán-Jalpa KM. 1 Colonia la Esmeralda, Tabasco, C.P. 86690, México
| | - Ivonne María Olivares-Corichi
- Sección de Estudios de Posgrado e Investigación, Escuela Superior de Medicina del Instituto Politécnico Nacional. Laboratorio de Oncología Molecular y Estrés Oxidativo, Instituto Politécnico Nacional, Plan de San Luis y Díaz Mirón, C.P. 11340 Ciudad de México, México
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Therapeutic and Nutraceutical Effects of Polyphenolics from Natural Sources. Molecules 2022; 27:molecules27196225. [PMID: 36234762 PMCID: PMC9572829 DOI: 10.3390/molecules27196225] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/14/2022] [Accepted: 09/17/2022] [Indexed: 11/16/2022] Open
Abstract
The prevalence of cardiovascular disease, oxidative stress-related complications, and chronic age-related illnesses is gradually increasing worldwide. Several causes include the ineffectiveness of medicinal treatment therapies, their toxicity, their inability to provide radical solutions in some diseases, and the necessity of multiple drug therapy in certain chronic diseases. It is therefore necessary for alternative treatment methods to be sought. In this review, polyphenols were identified and classified according to their chemical structure, and the sources of these polyphenol molecules are indicated. The cardioprotective, ROS scavenging, anti-aging, anticancer properties of polyphenolic compounds have been demonstrated by the results of many studies, and these natural antioxidant molecules are potential alternative therapeutic agents.
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Li Q, Liao S, Pang D, Li E, Liu T, Liu F, Zou Y. The transported active mulberry leaf phenolics inhibited adipogenesis through PPAR-γ and Leptin signaling pathway. J Food Biochem 2022; 46:e14270. [PMID: 35702955 DOI: 10.1111/jfbc.14270] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/10/2022] [Accepted: 05/17/2022] [Indexed: 11/29/2022]
Abstract
The effective components of mulberry leaf polyphenols (MLPs) should be absorbed and transported by the intestinal cells before regulating lipid metabolism. The Caco-2 intestinal epithelial cell and 3 T3-L1 adipocytes were coupled to screen the effective components of MLPs that are being absorbed and transported by intestinal cells. The regulation and molecular mechanism by which the effective components affect adipogenesis were analyzed in this study. Among the 12 main components identified, five main compounds were well absorbed with Papp in the order of benzoic acid > chlorogenic acid > astragaloside > hyperoside > rutin. Chlorogenic acid and benzoic acid were mainly absorbed through passive diffusion, while rutin, astragaloside, and hyperoside were mainly by active transport, of which chlorogenic and rutin absorption were mediated by the efflux protein, P-glycoprotein (P-pg). Based on the transport volume of 2 mg/ml MLPs within 2 h, 25% of the maximum transported MLPs (TMLPs) was a safe concentration for 3 T3-L1 preadipocytes. Except for astragaloside, the other four components showed a significant inhibitory effect on lipid droplets, TG and TC, and chlorogenic acid and benzoic acid had the strongest effect. Additionally, we observed a synergistic effect as TMLPs were the most effective. We hypothesized that TMLPs, chlorogenic acid and benzoic acid suppressed adipogenesis and regulated lipid metabolism by inhibiting PPAR-γ, C/EBP-α, and FAS mRNA while promoting ADIPO and Leptin mRNA expression. PRACTICAL APPLICATIONS: The absorption and adipogenesis inhibition effect of mulberry leaf phenolics were evaluated in this study. The results provided guideline for the development of functional foods in regulating lipid metabolism.
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Affiliation(s)
- Qian Li
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Sentai Liao
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Daorui Pang
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Erna Li
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Tongxian Liu
- Guangxi Rongshui Furongbei Jiangyuan Agricultural Development Co., Ltd, Liuzhou, China
| | - Fan Liu
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Yuxiao Zou
- Guangdong Academy of Agricultural Sciences, Sericultural & Agri-Food Research Institute/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
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4
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Kang S, Lee E, Lee H, Hwang GS, Lee J, Kim JW, Oh B, Kim JY, Kwon O. Yellow Yeast Rice Prepared Using Aspergillus terreus DSMK01 Lowers Cholesterol Levels by Stimulating Bile Salt Export Pump in Subjects with Mild-to-Moderate Hypercholesterolemia: A Randomized Controlled Trial. Mol Nutr Food Res 2021; 66:e2100704. [PMID: 34783447 DOI: 10.1002/mnfr.202100704] [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] [Received: 07/26/2021] [Revised: 10/01/2021] [Indexed: 01/17/2023]
Abstract
SCOPE Aspergillus terreus is an industrial microorganism used in the brewing and sauce industries. It produces monacolin K, a natural statin. The study conducted an 8-week randomized controlled trial with hypercholesterolemic subjects to examine the hypocholesterolemic effects and mechanisms of supplementation with yellow yeast rice (YYR) prepared by growing Aspergillus fungi on steamed rice. METHODS AND RESULTS YYR supplementation markedly reduced total cholesterol, LDL, and apolipoprotein B100 levels in plasma compared with the placebo. In addition, YYR induced a significantly increased ATP binding cassette subfamily B member 11 (ABCB11) gene expression compared with the placebo, indicating the role of YYR in lowering intrahepatic cholesterol availability by stimulating the bile salt export pump. Upregulation of LDL receptor (LDLR) and 3-methylglutaryl-CoA reductase (HMGCR) gene expressions provided additional evidence to support the role of YYR in reducing hepatic cholesterol availability. Plasma metabolomic profiling revealed the possibility of diminishing bile acid absorption. Finally, Spearman rank analysis showed correlations of plasma cholesterol profiles with HMGCR and LDLR gene expressions (negative) and plasma bile acids (positive). Plasma bile acids also correlated with ABCB11 (negative) and LDLR (positive) gene expressions. CONCLUSION These findings suggest that daily YYR supplementation exerted hypocholesterolemic effects in mild-to-moderate hypercholesterolemic subjects by reducing intrahepatic cholesterol availability through stimulating bile salt export pumps and inhibiting cholesterol biosynthesis.
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Affiliation(s)
- Seunghee Kang
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Eunok Lee
- Department of Nutritional Science and Food Management, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
| | - Heeyeon Lee
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul, 03759, Republic of Korea
| | - Geum-Sook Hwang
- Integrated Metabolomics Research Group, Western Seoul Center, Korea Basic Science Institute, Seoul, 03759, Republic of Korea
| | - Jaekyung Lee
- Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, 07061, Republic of Korea
| | - Ji Won Kim
- Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, 07061, Republic of Korea
| | - Bumjo Oh
- Department of Family Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, 07061, Republic of Korea
| | - Ji Yeon Kim
- Department of Food Science and Technology, Seoul National University of Science and Technology, Seoul, 01811, Republic of Korea
| | - Oran Kwon
- Department of Nutritional Science and Food Management, Ewha Womans University, Seoul, 03760, Republic of Korea.,Department of Nutritional Science and Food Management, Graduate Program in System Health Science and Engineering, Ewha Womans University, Seoul, 03760, Republic of Korea
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Discovering the Protective Effects of Resveratrol on Aflatoxin B1-Induced Toxicity: A Whole Transcriptomic Study in a Bovine Hepatocyte Cell Line. Antioxidants (Basel) 2021; 10:antiox10081225. [PMID: 34439473 PMCID: PMC8388899 DOI: 10.3390/antiox10081225] [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: 07/05/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/13/2022] Open
Abstract
Aflatoxin B1 (AFB1) is a natural feed and food contaminant classified as a group I carcinogen for humans. In the dairy industry, AFB1 and its derivative, AFM1, are of concern for the related economic losses and their possible presence in milk and dairy food products. Among its toxic effects, AFB1 can cause oxidative stress. Thus, dietary supplementation with natural antioxidants has been considered among the strategies to mitigate AFB1 presence and its toxicity. Here, the protective role of resveratrol (R) has been investigated in a foetal bovine hepatocyte cell line (BFH12) exposed to AFB1, by measuring cytotoxicity, transcriptional changes (RNA sequencing), and targeted post-transcriptional modifications (lipid peroxidation, NQO1 and CYP3A enzymatic activity). Resveratrol reversed the AFB1-dependent cytotoxicity. As for gene expression, when administered alone, R induced neglectable changes in BFH12 cells. Conversely, when comparing AFB1-exposed cells with those co-incubated with R+AFB1, greater transcriptional variations were observed (i.e., 840 DEGs). Functional analyses revealed that several significant genes were involved in lipid biosynthesis, response to external stimulus, drug metabolism, and inflammatory response. As for NQO1 and CYP3A activities and lipid peroxidation, R significantly reverted variations induced by AFB1, mostly corroborating and/or completing transcriptional data. Outcomes of the present study provide new knowledge about key molecular mechanisms involved in R antioxidant-mediated protection against AFB1 toxicity.
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Guarneiri LL, Spaulding MO, Marquardt AR, Cooper JA, Paton CM. Acute consumption of pecans decreases angiopoietin-like protein-3 in healthy males: a secondary analysis of randomized controlled trials. Nutr Res 2021; 92:62-71. [PMID: 34274555 DOI: 10.1016/j.nutres.2021.06.001] [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] [Received: 01/11/2021] [Revised: 05/28/2021] [Accepted: 06/03/2021] [Indexed: 01/09/2023]
Abstract
Angiopoietin-like proteins (ANGPTL)-3 and -4 regulate lipid metabolism, but the effect of tree nuts of varying fatty acid composition on post-meal responses is unknown. The purpose of the study was to conduct a secondary analysis of two studies on ANGPTL3 and -4 responses to meals containing different tree nuts. We hypothesized that the pecan-containing meal would mitigate postprandial rises in ANGPTL3 compared to the traditional meal without nuts in males, but not females. In addition, we hypothesized that there would be no other differences between any other treatments in ANGPTL3 or -4 responses. The two studies were double-blind, randomized crossover trials. Twenty-two adults (10=male, 12=female) completed study 1, which compared meals containing pecans vs. no nuts (control), and thirty adults (14=male, 16=female) completed study 2, which compared meals containing black walnuts, English walnuts (EW), or no nuts (control). Blood was collected at fasting, 30, 60, 120, and 180min postprandially. In study 1, ANGPTL3 was suppressed more in pecan vs. control in males (iAUC: -579.4±219.4 vs. -128.4±87.1pg/mL/3h, P<.05). In study 2, there was no difference in ANGPTL3 between black walnuts vs. EW, but ANGPTL3 was suppressed more in control vs. black walnuts in females only (iAUC: -196.4±138.4 vs. 102.1±90.1pg/mL/3h, P<.05). There were no differences in ANGPTL4 between treatments. In conclusion, adding pecans to a meal decreased ANGPTL3 in males, but not females. These data highlight the importance of investigating the impact of nutrients and sex on postprandial ANGPTL3 ad -4 responses to better understand their ability to reduce cardiovascular disease risk.
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Affiliation(s)
- Liana L Guarneiri
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Mai O Spaulding
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Alexis R Marquardt
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Jamie A Cooper
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Chad M Paton
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA; Department of Food Science and Technology, University of Georgia, Athens, GA, USA.
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Ellagic Acid Suppresses ApoB Secretion and Enhances ApoA-1 Secretion from Human Hepatoma Cells, HepG2. Molecules 2021; 26:molecules26133885. [PMID: 34202121 PMCID: PMC8271888 DOI: 10.3390/molecules26133885] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 11/19/2022] Open
Abstract
The effect of ellagic acid (EA), a naturally occurring polyphenolic compound, on the secretion of apolipoproteins from human hepatocytes, HepG2, was investigated. The levels of apoB and apoA-1 secreted in the cell culture medium were determined by sandwich ELISA. EA did not affect cell viability at the tested concentrations (up to 50 µM). EA suppressed the secretion of apoB and enhanced that of apoA-1 from HepG2 cells. However, cellular apoB levels were increased, suggesting that EA inhibited the trafficking of apoB during the process of secretion. In contrast, the increase in the cellular levels of apoA-1 was consistent with its secreted levels. These results indicate that EA inhibits the secretion of apoB from hepatocytes and increases the secretion of apoA-1. Both of these effects are beneficial for lipoprotein metabolism in the prevention of lifestyle-related diseases. The detailed mechanism underlying these effects of EA on lipoprotein metabolism should be elucidated in the future, but this naturally occurring polyphenolic compound might be antihyperlipidemic. Based on these results, EA is suggested as a candidate food-derived compound for the prevention of hyperlipidemia.
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8
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Bagherniya M, Johnston TP, Sahebkar A. Regulation of Apolipoprotein B by Natural Products and Nutraceuticals: A Comprehensive Review. Curr Med Chem 2021; 28:1363-1406. [PMID: 32338202 DOI: 10.2174/0929867327666200427092114] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/08/2020] [Accepted: 03/09/2020] [Indexed: 11/22/2022]
Abstract
Cardiovascular Disease (CVD) is the most important and the number one cause of mortality in both developing and industrialized nations. The co-morbidities associated with CVD are observed from infancy to old age. Apolipoprotein B100 (Apo B) is the primary apolipoprotein and structural protein of all major atherogenic particles derived from the liver including Very-Low- Density Lipoproteins (VLDL), Intermediate-density Lipoprotein (IDL), and Low-density Lipoprotein (LDL) particles. It has been suggested that measurement of the Apo B concentration is a superior and more reliable index for the prediction of CVD risk than is the measurement of LDL-C. Nutraceuticals and medicinal plants have attracted significant attention as it pertains to the treatment of non-communicable diseases, particularly CVD, diabetes mellitus, hypertension, and Nonalcoholic Fatty Liver Disease (NAFLD). The effect of nutraceuticals and herbal products on CVD, as well as some of its risk factors such as dyslipidemia, have been investigated previously. However, to the best of our knowledge, the effect of these natural products, including herbal supplements and functional foods (e.g. fruits and vegetables as either dry materials, or their extracts) on Apo B has not yet been investigated. Therefore, the primary objective of this paper was to review the effect of bioactive natural compounds on plasma Apo B concentrations. It is concluded that, in general, medicinal plants and nutraceuticals can be used as complementary medicine to reduce plasma Apo B levels in a safe, accessible, and inexpensive manner in an attempt to prevent and treat CVD.
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Affiliation(s)
- Mohammad Bagherniya
- Department of Community Nutrition, School of Nutrition and Food Science, Food Security Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Thomas P Johnston
- Division of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Missouri-Kansas City, Kansas City, Missouri, United States
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Mousavi SM, Beatriz Pizarro A, Akhgarjand C, Bagheri A, Persad E, Karimi E, Wong A, Jayedi A. The effects of Anethum graveolens (dill) supplementation on lipid profile and glycemic control: a systematic review and meta-analysis of randomized controlled trials. Crit Rev Food Sci Nutr 2021; 62:5705-5716. [PMID: 33624557 DOI: 10.1080/10408398.2021.1889459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
There is an increased interest in the potential health benefits of nutraceutical therapies, such as Anethum graveolens (dill). Therefore, this systematic review and meta-analysis aimed to evaluate the effects of Anethum graveolens supplementation on lipid profiles and glycemic indices in adults. A systematic search was performed for literature published through November 2020 via PubMed/Medline, Scopus, ISI Web of Science, and Embase to find randomized controlled trials (RCTs) evaluating the effects of oral supplementation with A. graveolens on lipid profile and measures of glycemic control in adults. The random-effects model was applied to establish the weighted mean difference (WMD) and associated 95% confidence intervals (CI). Seven RCTs with a total number of 330 subjects were included in the final analysis. Pooled results indicated that A. graveolens supplementation significantly decreased low-density lipoprotein cholesterol (LDL) concentration (WMD: -15.64 mg/dL; 95% CI: -24.55 to -6.73; P = 0.001), serum insulin (WMD: -2.28 μU/ml; 95% CI: -3.62 to -0.93; P = 0.001), and HOMA-IR (WMD: -1.06; 95% CI: -1.91 to -0.20; P = 0.01). However, there was no significant effect on serum total cholesterol (TC), triglyceride (TG), high-density lipoprotein cholesterol (HDL), and fasting blood glucose (FBS). Subgroup analysis suggested that using A. graveolens in higher doses and long-term duration had beneficial effects on lipid profiles. Dose-response analysis also showed a significant reduction in FBS at doses of 1500 mg/d. The present meta-analysis indicated that Anethum graveolens could exert favorable effects on insulin resistance and serum LDL. Further research is necessary to confirm our findings.
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Affiliation(s)
- Seyed Mohammad Mousavi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Ana Beatriz Pizarro
- Department of epidemiology and biostatistics, Pontificia Universidad Javeriana, Bogota, Colombia
| | - Camellia Akhgarjand
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Amir Bagheri
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Emma Persad
- Department for Evidence-based Medicine and Evaluation, Danube University Krems, Krems, Austria
| | - Elmira Karimi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Alexei Wong
- Department of Health and Human Performance, Marymount University, Arlington, Virginia, USA
| | - Ahmad Jayedi
- Food Safety Research Center (salt), Semnan University of Medical Sciences, Semnan, Iran
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Martelli A, Citi V, Calderone V. Recent efforts in drug discovery on vascular inflammation and consequent atherosclerosis. Expert Opin Drug Discov 2020; 16:411-427. [PMID: 33256484 DOI: 10.1080/17460441.2021.1850688] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Preservation of vascular endothelium integrity and maintenance of its full functionality are fundamental aspects in order to avoid both cardiovascular and non-cardiovascular diseases.Areas covered: Although a massive endothelial disruption is a rare condition, caused by acute and uncontrolled inflammatory responses (e.g. the cytokine storm induced by SARS-CoV-2 infection), more frequently the vascular tree is the first target of slowly progressive inflammatory processes which affect the integrity of endothelium and its 'barrier' function, supporting the onset of atherosclerotic plaque and spreading inflammation. This endothelial dysfunction leads to decrease NO biosynthesis, impaired regulation of vascular tone, and increased platelet aggregation. Such chronic subclinic inflammation leads to macrophage infiltration in atherosclerotic lesions. Therefore, many efforts should be addressed to find useful approaches to preserve vascular endothelium from inflammation. In this review, the authors have evaluated the most recent strategies to counteract this pathological condition.Expert opinion: The therapeutic and nutraceutical approaches represent useful tools to treat or prevent different phases of vascular inflammation. In particular, the pharmacological approach should be used in advanced phases characterized by clinical signs of vascular disease, whilst the nutraceutical approach may represent a promising preventive strategy to preserve the integrity of the endothelial tissue.
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Affiliation(s)
- Alma Martelli
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Centre "Nutraceuticals and Food for Health (NUTRAFOOD)", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing, Biology and Pathology, University of Pisa, Pisa, Italy
| | | | - Vincenzo Calderone
- Department of Pharmacy, University of Pisa, Pisa, Italy.,Interdepartmental Research Centre "Nutraceuticals and Food for Health (NUTRAFOOD)", University of Pisa, Pisa, Italy.,Interdepartmental Research Centre of Ageing, Biology and Pathology, University of Pisa, Pisa, Italy
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ISHIMOTO EY, VICENTE SJV, CRUZ RJ, TORRES EAFDS. Hypolipidemic and antioxidant effects of grape processing by-products in high-fat/cholesterol diet-induced hyperlipidemic hamsters. FOOD SCIENCE AND TECHNOLOGY 2020. [DOI: 10.1590/fst.32619] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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12
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Chuang ST, Cruz S, Narayanaswami V. Reconfiguring Nature's Cholesterol Accepting Lipoproteins as Nanoparticle Platforms for Transport and Delivery of Therapeutic and Imaging Agents. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E906. [PMID: 32397159 PMCID: PMC7279153 DOI: 10.3390/nano10050906] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/27/2020] [Accepted: 04/29/2020] [Indexed: 12/13/2022]
Abstract
Apolipoproteins are critical structural and functional components of lipoproteins, which are large supramolecular assemblies composed predominantly of lipids and proteins, and other biomolecules such as nucleic acids. A signature feature of apolipoproteins is the preponderance of amphipathic α-helical motifs that dictate their ability to make extensive non-covalent inter- or intra-molecular helix-helix interactions in lipid-free states or helix-lipid interactions with hydrophobic biomolecules in lipid-associated states. This review focuses on the latter ability of apolipoproteins, which has been capitalized on to reconstitute synthetic nanoscale binary/ternary lipoprotein complexes composed of apolipoproteins/peptides and lipids that mimic native high-density lipoproteins (HDLs) with the goal to transport drugs. It traces the historical development of our understanding of these nanostructures and how the cholesterol accepting property of HDL has been reconfigured to develop them as drug-loading platforms. The review provides the structural perspective of these platforms with different types of apolipoproteins and an overview of their synthesis. It also examines the cargo that have been loaded into the core for therapeutic and imaging purposes. Finally, it lays out the merits and challenges associated with apolipoprotein-based nanostructures with a future perspective calling for a need to develop "zip-code"-based delivery for therapeutic and diagnostic applications.
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Affiliation(s)
| | | | - Vasanthy Narayanaswami
- Department of Chemistry and Biochemistry, California State University, Long Beach, 1250 Bellflower Blvd, Long Beach, CA 90840, USA; (S.T.C.); (S.C.)
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Effects of grape seed extract on dyslipidaemia: a systematic review and dose–response meta-analysis of randomised controlled trials. Br J Nutr 2020; 124:121-134. [DOI: 10.1017/s0007114520000902] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AbstractData on the effect of grape seed extract (GSE) on lipid profiles are inconclusive. We undertook a systematic review and meta-analysis of randomised controlled clinical trials on the effect of GSE on serum lipid profiles. The online databases of PubMed, ISI Web of Science, Scopus, ProQuest, Science Direct and Embase were searched for relevant publications until March 2019, using MeSH and non-MeSH keywords. Study selection, data extraction and quality assessment were completed independently by two investigators. Meta-regression and subgroup analyses were performed to identify the source of heterogeneity. Assessment of study quality was conducted using the Jadad scale. Eleven randomised clinical trials involving 536 participants were included in the present meta-analysis. Combining effect sizes from earlier studies, we found that GSE supplementation significantly decreased serum levels of LDL-cholesterol (−0·17 mmol/l; 95 % CI −0·34, −0·01) and TAG (−0·11 mmol/l; 95 % CI −0·18, −0·05). Although no overall significant effect of GSE supplementation on circulating total- and HDL-cholesterol levels was observed, there were significant reductions in these lipids in studies with <10 weeks of intervention and those that had administered the dosages of <300 mg/d of GSE. In conclusion, GSE supplementation seems to favourably affect serum levels of LDL and TAG concentrations, but it did not affect total- and HDL-cholesterol concentrations.
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Effect of extraction methods on antioxidant and anticoagulant activities of Thymus atlanticus aerial part. SCIENTIFIC AFRICAN 2019. [DOI: 10.1016/j.sciaf.2019.e00143] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Jing Y, Hu T, Lin C, Xiong Q, Liu F, Yuan J, Zhao X, Wang R. Resveratrol downregulates PCSK9 expression and attenuates steatosis through estrogen receptor α-mediated pathway in L02 cells. Eur J Pharmacol 2019; 855:216-226. [PMID: 31085239 DOI: 10.1016/j.ejphar.2019.05.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 05/03/2019] [Accepted: 05/10/2019] [Indexed: 12/21/2022]
Abstract
Proprotein convertase subtilisin kexin type 9 (PCSK9) is a promising target for treating dyslipidemia and atherosclerosis. Circulating PCSK9 levels are closely related to hepatic steatosis severity and endogenous estrogen levels. Resveratrol (RSV) is a phytoestrogens that protects against atherosclerosis and hepatic steatosis. Thus, we sought to determine whether RSV had the activities to inhibit PCSK9 expression and to attenuate lipid accumulation in free fatty acid (FFA)-induced L02 cells via ERα pathway. In this study, RSV (10, 20 μM) were cultured with L02 cells in the presence of FFA (oleate:palmitate = 2:1). RSV significantly reduced the number of lipid droplets and intracellular TG in steatotic L02 cells, and Oil red O staining and Nile red staining had the same results. Western blot analysis showed that RSV significantly reduced apoB secretion and intracellular microsomal triglyceride transporter (MTP) expression under lipid-rich conditions. Treatment with RSV reduced expression of PCSK9 while maintaining LDL receptor (LDLR) expression and LDL uptake. RSV decreased SREBP-1c expression at both mRNA and protein levels. In addition, RSV significantly reduced the expression of liver X receptor α (LXRα) mRNA in L02 cells, but did not affect the expression of liver X receptor β (LXRβ) mRNA. The luciferase reporter assays suggested that RSV inhibited SREBP-mediated transcription of PCSK9. Finally, these results could be partly reversed by Estrogen receptor α (ERα) gene silencing. These results suggest that RSV attenuates steatosis and PCSK9 expression through down-regulation of SREBP-1c expression, at least in part through ERα-mediated pathway.
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Affiliation(s)
- Yi Jing
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an, 223003, China; National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Tianhui Hu
- Department of Gynaecology and Health, Huai'an Maternal and Child Health-Care Center, Huai'an, 2230003, China
| | - Chao Lin
- School of Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Qingping Xiong
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Fei Liu
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Jun Yuan
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Xiaojuan Zhao
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an, 223003, China
| | - Rong Wang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huai'an, 223003, China
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Abstract
AbstractPlasma apoB is a more accurate marker of the risk of CVD and type 2 diabetes (T2D) than LDL-cholesterol; however, nutritional reviews targeting apoB are scarce. Here we reviewed eighty-seven nutritional studies and present conclusions in order of strength of evidence. Plasma apoB was reduced in all studies that induced weight loss of 6–12 % using hypoenergetic diets (seven studies; 5440–7110 kJ/d; 1300–1700 kcal/d; 34–50 % carbohydrates; 27–39 % fat; 18–24 % protein). When macronutrients were compared in isoenergetic diets (eleven studies including eight randomised controlled trials (RCT); n 1189), the diets that reduced plasma apoB were composed of 26–51 % carbohydrates, 26–46 % fat, 11–32 % protein, 10–27 % MUFA, 5–14 % PUFA and 7–13 % SFA. Replacement of carbohydrate by MUFA, not SFA, decreased plasma apoB. Moreover, dietary enriching with n-3 fatty acids (FA) (from fish: 1·1–1·7 g/d or supplementation: 3·2–3·4 g/d EPA/DHA or 4 g/d EPA), psyllium (about 8–20 g/d), phytosterols (about 2–4 g/d) or nuts (30–75 g/d) also decreased plasma apoB, mostly in hyperlipidaemic subjects. While high intake of trans-FA (4·3–9·1 %) increased plasma apoB, it is unlikely that these amounts represent usual consumption. Inconsistent data existed on the effect of soya proteins (25–30 g/d), while the positive association of alcohol consumption with low plasma apoB was reported in cross-sectional studies only. Five isoenergetic studies using Mediterranean diets (including two RCT; 823 subjects) reported a decrease of plasma apoB, while weaker evidence existed for Dietary Approaches to Stop Hypertension (DASH), vegetarian, Nordic and Palaeolithic diets. We recommend using a Mediterranean dietary pattern, which also encompasses the dietary components reported to reduce plasma apoB, to target hyperapoB and reduce the risks of CVD and T2D.
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Corredor Z, Rodríguez-Ribera L, Coll E, Montañés R, Diaz JM, Ballarin J, Marcos R, Pastor S. Unfermented grape juice reduce genomic damage on patients undergoing hemodialysis. Food Chem Toxicol 2016; 92:1-7. [PMID: 27016493 DOI: 10.1016/j.fct.2016.03.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Revised: 03/14/2016] [Accepted: 03/21/2016] [Indexed: 01/04/2023]
Abstract
Chronic kidney disease (CKD) patients in dialysis (HD) are considered to be submitted to a continuous oxidative stress. This stress can cause damage on DNA and, consequently, contribute to the high levels of DNA damage observed in these patients. Due to the well-known role of polyphenols as antioxidant agents we proposed its use to reduce the levels of genotoxicity present in HD-CKD patients. The objective of this study was to evaluate the antigenotoxic effects of unfermented grape juice (UGJ) on HD-CKD patients. The levels of DNA damage were analyzed using different biomarkers, such as breaks and oxidized DNA bases by the comet assay, chromosome damage by the micronucleus test. In addition, TEAC (Trolox equivalent antioxidant capacity) was also evaluated. Thirty-nine patients were followed for six months, of whom 25 were supplemented by UGJ and 14 were not supplemented. The obtained results showed a significant decrease in the underlying levels of oxidative DNA damage, in the supplemented group. Regarding the clinical parameters, LDL and cholesterol, were significantly reduced in the patients studied after the supplementation period, although cholesterol was also decreased in the non-supplemented patients. In conclusion, in our studied group the supplementation with UGJ reduced the levels of oxidative DNA damage of HD-CKD patients.
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Affiliation(s)
- Zuray Corredor
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Edifici C, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Spain
| | - Lara Rodríguez-Ribera
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Edifici C, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Spain
| | | | | | | | | | - Ricard Marcos
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Edifici C, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Spain; CIBER Epidemiología y Salud Pública, ISCIII, Madrid, Spain.
| | - Susana Pastor
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Edifici C, Universitat Autònoma de Barcelona, 08193 Bellaterra, Cerdanyola del Vallès, Spain; CIBER Epidemiología y Salud Pública, ISCIII, Madrid, Spain.
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Sanz-Buenhombre M, Villanueva S, Moro C, Tomás-Cobos L, Viadel B, Guadarrama A. Bioavailability and the mechanism of action of a grape extract rich in polyphenols in cholesterol homeostasis. J Funct Foods 2016. [DOI: 10.1016/j.jff.2015.11.044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Zhai SW, Lu JJ, Chen XH. Effects of Dietary Grape Seed Proanthocyanidins on Growth Performance, Some Serum Biochemical Parameters and Body Composition of Tilapia (Oreochromis Niloticus) Fingerlings. ITALIAN JOURNAL OF ANIMAL SCIENCE 2016. [DOI: 10.4081/ijas.2014.3357] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Grootaert C, Kamiloglu S, Capanoglu E, Van Camp J. Cell Systems to Investigate the Impact of Polyphenols on Cardiovascular Health. Nutrients 2015; 7:9229-55. [PMID: 26569293 PMCID: PMC4663590 DOI: 10.3390/nu7115462] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 10/21/2015] [Accepted: 10/28/2015] [Indexed: 02/07/2023] Open
Abstract
Polyphenols are a diverse group of micronutrients from plant origin that may serve as antioxidants and that contribute to human health in general. More specifically, many research groups have investigated their protective effect against cardiovascular diseases in several animal studies and human trials. Yet, because of the excessive processing of the polyphenol structure by human cells and the residing intestinal microbial community, which results in a large variability between the test subjects, the exact mechanisms of their protective effects are still under investigation. To this end, simplified cell culture systems have been used to decrease the inter-individual variability in mechanistic studies. In this review, we will discuss the different cell culture models that have been used so far for polyphenol research in the context of cardiovascular diseases. We will also review the current trends in cell culture research, including co-culture methodologies. Finally, we will discuss the potential of these advanced models to screen for cardiovascular effects of the large pool of bioactive polyphenols present in foods and their metabolites.
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Affiliation(s)
- Charlotte Grootaert
- Laboratory of Food Chemistry and Human Nutrition, Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent University, Coupure Links, Ghent 653 B-9000, Belgium.
| | - Senem Kamiloglu
- Laboratory of Food Chemistry and Human Nutrition, Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent University, Coupure Links, Ghent 653 B-9000, Belgium.
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak 34469, Istanbul, Turkey.
| | - Esra Capanoglu
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, Maslak 34469, Istanbul, Turkey.
| | - John Van Camp
- Laboratory of Food Chemistry and Human Nutrition, Department of Food Safety and Food Quality, Faculty of Bioscience Engineering, Ghent University, Coupure Links, Ghent 653 B-9000, Belgium.
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Riccioni G, Gammone MA, Tettamanti G, Bergante S, Pluchinotta FR, D'Orazio N. Resveratrol and anti-atherogenic effects. Int J Food Sci Nutr 2015; 66:603-10. [PMID: 26306466 DOI: 10.3109/09637486.2015.1077796] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The role of inflammation and oxidative stress in atherosclerosis development has been increasingly well recognized over the past decade. Inflammation has a significant role at all stages of atherosclerosis, including initiation, progression and plaque formation. Resveratrol is a naturally occurring polyphenolic compound found in grape products, berry fruits and red wine. Its ability to behave therapeutically as a component of red wine has attracted wide attention. Accumulating evidence suggests that it is a highly pleiotropic molecule that modulates numerous targets and molecular functions. Epidemiological studies indicate that the Mediterranean diet, rich in resveratrol, is associated with a reduced risk of atherosclerosis. Resveratrol is believed to decrease circulating low-density lipoprotein cholesterol levels, reduce cardiovascular disease risk; it reduces lipid peroxidation, platelet aggregation and oxidative stress. Resveratrol is considered a safe compound, since no significant toxic effects have been demonstrated after administration of a broad range of concentrations, and an effective anti-atherogenic agent.
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Affiliation(s)
- Graziano Riccioni
- a Cardiology Unit, San Camillo de Lellis Hospital , Manfredonia , Foggia , Italy
| | - Maria Alessandra Gammone
- b Clinical and Human Nutrition Unit, Department of Oral Medical and Biotechnological Sciences, University "G. D'Annunzio" , Chieti , Italy and
| | - Guido Tettamanti
- c Department of Pediatric Cardiovascular Surgery , IRCCS San Donato Milanese Hospital , San Donato Milanese , Italy
| | - Sonia Bergante
- c Department of Pediatric Cardiovascular Surgery , IRCCS San Donato Milanese Hospital , San Donato Milanese , Italy
| | - Francesca Romana Pluchinotta
- c Department of Pediatric Cardiovascular Surgery , IRCCS San Donato Milanese Hospital , San Donato Milanese , Italy
| | - Nicolantonio D'Orazio
- b Clinical and Human Nutrition Unit, Department of Oral Medical and Biotechnological Sciences, University "G. D'Annunzio" , Chieti , Italy and
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22
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Kim SH, Adhikari BB, Cruz S, Schramm MP, Vinson JA, Narayanaswami V. Targeted intracellular delivery of resveratrol to glioblastoma cells using apolipoprotein E-containing reconstituted HDL as a nanovehicle. PLoS One 2015; 10:e0135130. [PMID: 26258481 PMCID: PMC4530947 DOI: 10.1371/journal.pone.0135130] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 07/18/2015] [Indexed: 11/23/2022] Open
Abstract
The objective of this study is to transport and deliver resveratrol to intracellular sites using apolipoprotein E3 (apoE3). Reconstituted high-density lipoprotein (rHDL) bearing resveratrol (rHDL/res) was prepared using phospholipids and the low-density lipoprotein receptor (LDLr)-binding domain of apoE3. Biophysical characterization revealed that resveratrol was partitioned into the phospholipid bilayer of discoidal rHDL/res particles (~19 nm diameter). Co-immunoprecipitation studies indicated that the LDLr-binding ability of apoE3 was retained. Cellular uptake of resveratrol to intracellular sites was evaluated in glioblastoma A-172 cells by direct fluorescence using chemically synthesized NBD-labeled resveratrol (res/NBD) embedded in rHDL/res. Competition and inhibition studies indicate that the uptake is by receptor mediated endocytosis via the LDLr, with co-localization of apoE3 and res/NBD in late endosomes/lysosomes. We propose that rHDL provides an ideal hydrophobic milieu to sequester resveratrol and that rHDL containing apoE3 serves as an effective “nanovehicle” to transport and deliver resveratrol to targeted intracellular sites.
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Affiliation(s)
- Sea H. Kim
- Department of Chemistry and Biochemistry, California State University Long Beach, Long Beach, California, United States of America
| | - Birendra Babu Adhikari
- Department of Chemistry and Biochemistry, California State University Long Beach, Long Beach, California, United States of America
| | - Siobanth Cruz
- Department of Chemistry and Biochemistry, California State University Long Beach, Long Beach, California, United States of America
| | - Michael P. Schramm
- Department of Chemistry and Biochemistry, California State University Long Beach, Long Beach, California, United States of America
| | - Joe A. Vinson
- Chemistry Department, Loyola Science Center, University of Scranton, Scranton, Pennsylvania, United States of America
| | - Vasanthy Narayanaswami
- Department of Chemistry and Biochemistry, California State University Long Beach, Long Beach, California, United States of America
- * E-mail:
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Xu C, Qiao X, Zhao Y, Sun R, Shang X, Niu W. Resveratrol ameliorates chronic high altitude exposure-induced oxidative stress and suppresses lipid metabolism alteration in rats. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chunlan Xu
- The Key Laboratory for Space Bioscience and Biotechnology; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; P. R. China
| | - Xiangjin Qiao
- The Key Laboratory for Space Bioscience and Biotechnology; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; P. R. China
| | - Yanfei Zhao
- Department of Agriculture and Medicine; The Open University of China, Beijing; P. R. China
| | - Rui Sun
- The Key Laboratory for Space Bioscience and Biotechnology; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; P. R. China
| | - Xiaoya Shang
- The Key Laboratory for Space Bioscience and Biotechnology; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; P. R. China
| | - Weining Niu
- The Key Laboratory for Space Bioscience and Biotechnology; School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi; P. R. China
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Sagunja-Tang Improves Lipid Related Disease in a Postmenopausal Rat Model and HepG2 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:321407. [PMID: 25977697 PMCID: PMC4421029 DOI: 10.1155/2015/321407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/25/2015] [Accepted: 04/05/2015] [Indexed: 01/01/2023]
Abstract
The present study was conducted to investigate the effect of Sagunja-tang on the lipid related disease in a rat model of menopausal hyperlipidemia and lipid accumulation in methyl-β-cyclodextrin-induced HepG2 cells. In in vivo study using menopausal hyperlipidemia rats, Sagunja-tang reduced retroperitoneal and perirenal fat, serum lipids, atherogenic index, cardiac risk factor, media thickness, and nonalcoholic steatohepatitis score, when compared to menopausal hyperlipidemia control rats. In HepG2 cells, Sagunja-tang significantly decreased the lipid accumulation, total cholesterol levels, and low-density/very-low-density lipoprotein levels. Moreover, Sagunja-tang reversed the methyl-β-cyclodextrin-induced decrease in the protein levels of critical molecule involved in cholesterol synthesis, sterol regulatory element binding protein-2, and low-density lipoprotein receptor and inhibited protein levels of 3-hydroxy-3-methylglutaryl coenzyme A reductase as well as activity. Phosphorylation level of AMP-activated protein kinase was stimulated by Sagunja-tang. These results suggest that Sagunja-tang has effect on inhibiting hepatic lipid accumulation through regulation of cholesterol synthesis and AMPK activity in vitro. These observations support the idea that Sagunja-tang is bioavailable both in vivo and in vitro and could be developed as a preventive and therapeutic agent of hyperlipidemia in postmenopausal females.
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Shimizu M, Li J, Inoue J, Sato R. Quercetin represses apolipoprotein B expression by inhibiting the transcriptional activity of C/EBPβ. PLoS One 2015; 10:e0121784. [PMID: 25875015 PMCID: PMC4398426 DOI: 10.1371/journal.pone.0121784] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 02/04/2015] [Indexed: 11/18/2022] Open
Abstract
Quercetin is one of the most abundant polyphenolic flavonoids found in fruits and vegetables and has anti-oxidative and anti-obesity effects. Because the small intestine is a major absorptive organ of dietary nutrients, it is likely that highly concentrated food constituents, including polyphenols, are present in the small intestinal epithelial cells, suggesting that food factors may have a profound effect in this tissue. To identify novel targets of quercetin in the intestinal enterocytes, mRNA profiling using human intestinal epithelial Caco-2 cells was performed. We found that mRNA levels of some apolipoproteins, particularly apolipoprotein B (apoB), are downregulated in the presence of quercetin. On the exposure of Caco-2 cells to quercetin, both mRNA and protein levels of apoB were decreased. Promoter analysis of the human apoB revealed that quercetin response element is localized at the 5′-proximal promoter region, which contains a conserved CCAAT enhancer-binding protein (C/EBP)-response element. We found that quercetin reduces the promoter activity of apoB, driven by the enforced expression of C/EBPβ. Quercetin had no effect on either mRNA or protein levels of C/EBPβ. In contrast, we found that quercetin inhibits the transcriptional activity of C/EBPβ but not its recruitment to the apoB promoter. On the exposure of Caco-2 cells to quercetin 3-O-glucuronide, which is in a cell-impermeable form, no notable change in apoB mRNA was observed, suggesting an intracellular action of quercetin. In vitro interaction experiments using quercetin-conjugated beads revealed that quercetin binds to C/EBPβ. Our results describe a novel regulatory mechanism of transcription of apolipoprotein genes by quercetin in the intestinal enterocytes.
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Affiliation(s)
- Makoto Shimizu
- Department of Applied Biological Chemistry, The University of Tokyo 1-1-1 Yayoi, Bunkyo, Tokyo, Japan
| | - Juan Li
- Department of Applied Biological Chemistry, The University of Tokyo 1-1-1 Yayoi, Bunkyo, Tokyo, Japan
| | - Jun Inoue
- Department of Applied Biological Chemistry, The University of Tokyo 1-1-1 Yayoi, Bunkyo, Tokyo, Japan
| | - Ryuichiro Sato
- Department of Applied Biological Chemistry, The University of Tokyo 1-1-1 Yayoi, Bunkyo, Tokyo, Japan
- * E-mail:
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Abstract
OBJECTIVE We examined the phytoestrogenic effects of palmiwon on breast carcinoma, lipid accumulation in methyl-β-cyclodextrin-induced HepG2 cells, and lipid-related diseases in a rat model of menopausal hyperlipidemia. METHODS E-Screen assay was used to screen for phytoestrogens, especially those with antiestrogenic activity, in MCF-7 cells. Oil Red O staining and intracellular cholesterol analyses were used to quantify cellular cholesterol levels. 3-Hydroxy-3-methyl glutaryl coenzyme A reductase assay was used to measure enzyme activity. The levels of phosphorylated adenosine monophosphate-activated protein kinases and products of genes involved in cholesterol synthesis were measured by Western blot analysis. Thirty rats were either ovariectomized or sham-operated and randomly assigned to four groups (n = 5)-Sham, OVX, OVX-SV, or OVX-PMW (50, 150, or 450 mg/kg) group-for 8 weeks. A number of targets associated with lipid-related diseases were examined to confirm the estrogenic effects of palmiwon. RESULTS Palmiwon showed antiestrogenic activity in MCF-7 cells. Palmiwon decreased lipid accumulation, total cholesterol levels, and low-density lipoprotein/very-low-density lipoprotein levels in HepG2 cells. Moreover, palmiwon reversed the effects of methyl-β-cyclodextrin on cholesterol synthesis regulators and inhibited the activity of 3-hydroxy-3-methyl glutaryl coenzyme A reductase. Phosphorylation of adenosine monophosphate-activated protein kinase was stimulated by palmiwon. In ovariectomized rats, palmiwon reduced retroperitoneal and perirenal fat accumulation, serum lipids, atherogenic index, cardiac risk factor score, intima-media thickness, and nonalcoholic steatohepatitis scores. CONCLUSIONS These results indicate that palmiwon inhibits lipid accumulation without estrogenic activity in the breast. Therefore, palmiwon may have potential as a therapeutic agent for the treatment of hyperlipidemia in postmenopausal women.
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Margalef M, Guerrero L, Pons Z, Bravo FI, Arola L, Muguerza B, Arola-Arnal A. A dose-response study of the bioavailability of grape seed proanthocyanidin in rat and lipid-lowering effects of generated metabolites in HepG2 cells. Food Res Int 2014; 64:500-507. [PMID: 30011680 DOI: 10.1016/j.foodres.2014.07.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Revised: 07/04/2014] [Accepted: 07/20/2014] [Indexed: 12/19/2022]
Abstract
Hyperlipidemia is one of the principal causes of cardiovascular disease and proanthocyanidins (PAs) regulate lipid homeostasis. This study aims to evaluate the concentration of PAs in rat serum after the administration of different doses of PAs and to determine the capacity of these metabolites to reduce de novolipid synthesis in HepG2 cells. Two hours after oral administration of different doses of a grape seed proanthocyanidin extract (GSPE) (1000, 375, 250 and 125mg/kg), serum was semi-purified and characterised by HPLC-ESI-MS/MS before analysing the synthesis and secretion of lipids in HepG2 cells. Results showed a dose-dependent appearance of metabolised PAs in serum at doses up to 375mg/kg and saturation at 1000mg/kg of GSPE. A reduction in cholesterol esters (CE), free cholesterol (FC) and triglycerides (TG) synthesis was observed without dose-dependence when the cells were treated with PAs metabolites. Moreover, a low dose of metabolites (125mg/kg) was sufficient to reduce FC and TG synthesis. In conclusion, the study demonstrated that PAs metabolise in a dose-dependent manner up to 370mg/kg but not dose-dependent effect was shown in reducing the de novosynthesis of lipids.
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Affiliation(s)
- Maria Margalef
- Nutrigenomic Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Tarragona 43007, Spain
| | - Ligia Guerrero
- Nutrigenomic Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Tarragona 43007, Spain; Department of Research, Nutrition and Innovation, ALPINA S.A., Bogotá, Colombia
| | - Zara Pons
- Nutrigenomic Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Tarragona 43007, Spain
| | - Francisca Isabel Bravo
- Nutrigenomic Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Tarragona 43007, Spain
| | - Lluís Arola
- Nutrigenomic Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Tarragona 43007, Spain; Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus 43204, Spain
| | - Begoña Muguerza
- Nutrigenomic Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Tarragona 43007, Spain; Centre Tecnològic de Nutrició i Salut (CTNS), TECNIO, CEICS, Reus 43204, Spain.
| | - Anna Arola-Arnal
- Nutrigenomic Group, Department of Biochemistry and Biotechnology, Rovira i Virgili University, Tarragona 43007, Spain
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Effect of black and red cabbage on plasma carotenoid levels, lipid profile and oxidized low density lipoprotein. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.02.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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Guardiola S, Mach N. Potencial terapéutico del Hibiscus sabdariffa: una revisión de las evidencias científicas. ACTA ACUST UNITED AC 2014; 61:274-95. [DOI: 10.1016/j.endonu.2013.10.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 10/25/2013] [Accepted: 10/29/2013] [Indexed: 12/20/2022]
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Lacerda DDS, Santos CF, Oliveira AS, Zimmermann R, Schneider R, Agostini F, Dani C, Funchal C, Gomez R. Antioxidant and hepatoprotective effects of an organic grapevine leaf (Vitis labrusca L.) extract in diabetic rats. RSC Adv 2014. [DOI: 10.1039/c4ra08396b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Changes on metabolic, biochemical and oxidative parameters in the livers of diabetic rats after chronic administration of an aqueous extract of organic grapevine leaves.
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Affiliation(s)
- Denise dos Santos Lacerda
- Programa de Pós-Graduação em Ciência Biológicas: Fisiologia
- Universidade Federal do Rio Grande do Sul (UFRGS)
- Porto Alegre, Brasil
| | - Carolina Ferreira Santos
- Departamento de Farmacologia – Instituto de Ciências Básicas da Saúde
- Universidade Federal do Rio Grande do Sul (UFRGS)
- Porto Alegre, Brasil
| | | | | | - Ricardo Schneider
- Departamento de Farmacologia – Instituto de Ciências Básicas da Saúde
- Universidade Federal do Rio Grande do Sul (UFRGS)
- Porto Alegre, Brasil
| | | | - Caroline Dani
- Centro Universitário Metodista do IPA
- Porto Alegre, Brasil
- Universidade de Caxias do Sul, UCS
- Caxias do Sul, Brasil
| | | | - Rosane Gomez
- Programa de Pós-Graduação em Ciência Biológicas: Fisiologia
- Universidade Federal do Rio Grande do Sul (UFRGS)
- Porto Alegre, Brasil
- Departamento de Farmacologia – Instituto de Ciências Básicas da Saúde
- Universidade Federal do Rio Grande do Sul (UFRGS)
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Choi HR, Lee SJ, Lee JH, Kwon JW, Lee HK, Jeong JT, Lee TB. Cholesterol-lowering Effects of Unripe Black Raspberry Water Extract. ACTA ACUST UNITED AC 2013. [DOI: 10.3746/jkfn.2013.42.12.1899] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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de Andrade MF, de Assis SGF, Paim APS, dos Reis BF. Multicommuted Flow Analysis Procedure for Total Polyphenols Determination in Wines Employing Chemiluminescence Detection. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9699-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Resveratrol protects against atherosclerosis, but does not add to the antiatherogenic effect of atorvastatin, in APOE*3-Leiden.CETP mice. J Nutr Biochem 2013; 24:1423-30. [DOI: 10.1016/j.jnutbio.2012.11.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2012] [Revised: 11/08/2012] [Accepted: 11/29/2012] [Indexed: 02/02/2023]
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Chiva-Blanch G, Arranz S, Lamuela-Raventos RM, Estruch R. Effects of wine, alcohol and polyphenols on cardiovascular disease risk factors: evidences from human studies. Alcohol Alcohol 2013; 48:270-7. [PMID: 23408240 DOI: 10.1093/alcalc/agt007] [Citation(s) in RCA: 158] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
AIMS The aim of this review was to focus on the knowledge of the cardiovascular benefits of moderate alcohol consumption, as well as to analyze the effects of the different types of alcoholic beverages. METHODS Systematic revision of human clinical studies and meta-analyses related to moderate alcohol consumption and cardiovascular disease (CVD) from 2000 to 2012. RESULTS Heavy or binge alcohol consumption unquestionably leads to increased morbidity and mortality. Nevertheless, moderate alcohol consumption, especially alcoholic beverages rich in polyphenols, such as wine and beer, seems to confer cardiovascular protective effects in patients with documented CVD and even in healthy subjects. CONCLUSIONS In conclusion, wine and beer (but especially red wine) seem to confer greater cardiovascular protection than spirits because of their polyphenolic content. However, caution should be taken when making recommendations related to alcohol consumption.
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Affiliation(s)
- Gemma Chiva-Blanch
- Department of Internal Medicine, Hospital Clínic, Institut d’Investigacions Biomèdiques August Pi i Sunyer IDIBAPS, University of Barcelona, 08036 Barcelona, Spain
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Quiñones M, Miguel M, Aleixandre A. Beneficial effects of polyphenols on cardiovascular disease. Pharmacol Res 2012; 68:125-31. [PMID: 23174266 DOI: 10.1016/j.phrs.2012.10.018] [Citation(s) in RCA: 177] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 10/15/2012] [Accepted: 10/30/2012] [Indexed: 02/07/2023]
Abstract
In recent years, numerous studies have demonstrated the health benefits of polyphenols, and special attention has been paid to their beneficial effects against cardiovascular disease, the leading cause of death in the world today. Polyphenols present vasodilator effects and are able to improve lipid profiles and attenuate the oxidation of low density lipoproteins. In addition, they present clear anti-inflammatory effects and can modulate apoptotic processes in the vascular endothelium. It has been suggested that most of these effects are a consequence of the antioxidant properties of polyphenols, but this idea is not completely accepted, and many other mechanisms have been proposed recently to explain the health effects of these compounds. In fact, different signaling pathways have been linked to polyphenols. This review brings together some recent studies which establish the beneficial properties of polyphenols for cardiovascular disease and analyzes the mechanisms involved in these properties.
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Affiliation(s)
- Mar Quiñones
- Department of Pharmacology, Faculty of Medicine, Universidad Complutense de Madrid, Avda. Complutense s/n, 28040 Madrid, Spain
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Ho SS, Dhaliwal SS, Hills AP, Pal S. The effect of 12 weeks of aerobic, resistance or combination exercise training on cardiovascular risk factors in the overweight and obese in a randomized trial. BMC Public Health 2012; 12:704. [PMID: 23006411 PMCID: PMC3487794 DOI: 10.1186/1471-2458-12-704] [Citation(s) in RCA: 165] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2012] [Accepted: 08/23/2012] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Evidence suggests that exercise training improves CVD risk factors. However, it is unclear whether health benefits are limited to aerobic training or if other exercise modalities such as resistance training or a combination are as effective or more effective in the overweight and obese. The aim of this study is to investigate whether 12 weeks of moderate-intensity aerobic, resistance, or combined exercise training would induce and sustain improvements in cardiovascular risk profile, weight and fat loss in overweight and obese adults compared to no exercise. METHODS Twelve-week randomized parallel design examining the effects of different exercise regimes on fasting measures of lipids, glucose and insulin and changes in body weight, fat mass and dietary intake. Participants were randomized to either: Group 1 (Control, n = 16); Group 2 (Aerobic, n = 15); Group 3 (Resistance, n = 16); Group 4 (Combination, n = 17). Data was analysed using General Linear Model to assess the effects of the groups after adjusting for baseline values. Within-group data was analyzed with the paired t-test and between-group effects using post hoc comparisons. RESULTS Significant improvements in body weight (-1.6%, p = 0.044) for the Combination group compared to Control and Resistance groups and total body fat compared to Control (-4.4%, p = 0.003) and Resistance (-3%, p = 0.041). Significant improvements in body fat percentage (-2.6%, p = 0.008), abdominal fat percentage (-2.8%, p = 0.034) and cardio-respiratory fitness (13.3%, p = 0.006) were seen in the Combination group compared to Control. Levels of ApoB48 were 32% lower in the Resistance group compared to Control (p = 0.04). CONCLUSION A 12-week training program comprising of resistance or combination exercise, at moderate-intensity for 30 min, five days/week resulted in improvements in the cardiovascular risk profile in overweight and obese participants compared to no exercise. From our observations, combination exercise gave greater benefits for weight loss, fat loss and cardio-respiratory fitness than aerobic and resistance training modalities. Therefore, combination exercise training should be recommended for overweight and obese adults in National Physical Activity Guidelines.This clinical trial was registered with the Australian New Zealand Clinical Trials Registry (ANZCTR), registration number: ACTRN12609000684224.
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Affiliation(s)
- Suleen S Ho
- School of Public Health; Curtin Health Innovation Research Institute, Curtin University of Technology, GPO Box U1987, Perth, Western Australia, Australia, 6845
| | - Satvinder S Dhaliwal
- School of Public Health; Curtin Health Innovation Research Institute, Curtin University of Technology, GPO Box U1987, Perth, Western Australia, Australia, 6845
| | - Andrew P Hills
- Mater Mother’s Hospital, Mater Medical Research Institute. Conjoint appointment with Griffith Health Institute, Griffith University, Brisbane, Australia
| | - Sebely Pal
- School of Public Health; Curtin Health Innovation Research Institute, Curtin University of Technology, GPO Box U1987, Perth, Western Australia, Australia, 6845
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Caiozzi G, Wong BS, Ricketts ML. Dietary modification of metabolic pathways via nuclear hormone receptors. Cell Biochem Funct 2012; 30:531-51. [PMID: 23027406 DOI: 10.1002/cbf.2842] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 04/07/2012] [Accepted: 05/09/2012] [Indexed: 12/17/2022]
Abstract
Nuclear hormone receptors (NHRs), as ligand-dependent transcription factors, have emerged as important mediators in the control of whole body metabolism. Because of the promiscuous nature of several members of this superfamily that have been found to bind ligand with lower affinity than the classical steroid NHRs, they consequently display a broader ligand selectivity. This promiscuous nature has facilitated various bioactive dietary components being able to act as agonist ligands for certain members of the NHR superfamily. By binding to these NHRs, bioactive dietary components are able to mediate changes in various metabolic pathways, including, glucose, cholesterol and triglyceride homeostasis among others. This review will provide a general overview of the nuclear hormone receptors that have been shown to be activated by dietary components. The physiological consequences of such receptor activation by these dietary components will then be discussed in more detail.
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Affiliation(s)
- Gianella Caiozzi
- Department of Agriculture, Nutrition and Veterinary Sciences, University of Nevada Reno, Reno, NV 89557, USA
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1,3,5,8-Tetrahydroxyxanthone regulates ANGPTL3–LPL pathway to lessen the ketosis in mice. Eur J Pharm Sci 2012; 46:26-31. [DOI: 10.1016/j.ejps.2012.02.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2011] [Revised: 01/03/2012] [Accepted: 02/02/2012] [Indexed: 11/24/2022]
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Xie W, Xing D, Sun H, Wang W, Ding Y, Du L. The Effects of Ananas comosus L. Leaves on Diabetic-Dyslipidemic Rats Induced by Alloxan and a High-Fat/High-Cholesterol Diet. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2012; 33:95-105. [PMID: 15844837 DOI: 10.1142/s0192415x05002692] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this study is to demonstrate the effects of Ananas comosus L. leaves on diabetic-dyslipidemic rats. Hypoglycemic and hypolipidemic activities of the ethanolic extract of Ananas comosus L. leaves (EEACL) were evaluated in normal and alloxan-induced diabetic rats by oral glucose tolerance test and an olive oil load test. Anti-diabetic, anti-hyperlipidemic and anti-oxidative activities of EEACL were also investigated in diabetic-dyslipidemic rats induced by alloxan and a high-fat/high-cholesterol diet. EEACL at the dose of 0.40 g/kg significantly inhibited the increase in blood glucose in diabetic rats in oral glucose tolerance test, but did not cause any hypoglycerimic activity in normal rats. It also significantly inhibited the increase in postprandial triglycerides (TG) levels in both normal and diabetic rats in olive oil load test. After 15 days of treatment of diabetic dyslipidemic rats, EEACL significantly decreased blood glucose (-51.0%, P<0.01), TG (-50.1%, P<0.01), TC (-23.3%, P<0.01), LDL-c (-47.9%, P<0.01) and glycated albumin (-25.4%, P<0.01) levels, significantly increased serum high-density lipoprotein cholesterol levels (66.2%, P<0.01) and prevented lower body weight of diabetes (11.8%, P<0.05), significantly lowered lipid peroxidation productions of blood (-27.8%, P<0.01), brain (-31.6%, P<0.05), liver (-44.5%, P<0.01) and kidneys (-72.2%, P<0.05) compared with those in untreated diabetic dyslipidemic rats. These data suggest that EEACL has anti-diabetic, anti-dyslipidemic and anti-oxidative activities, which may be developed into a new plant medicine for treatment of diabetes and its complications.
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Affiliation(s)
- Weidong Xie
- Institute of Medicinal Plant, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094, China
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41
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Yashiro T, Nanmoku M, Shimizu M, Inoue J, Sato R. Resveratrol increases the expression and activity of the low density lipoprotein receptor in hepatocytes by the proteolytic activation of the sterol regulatory element-binding proteins. Atherosclerosis 2012; 220:369-74. [DOI: 10.1016/j.atherosclerosis.2011.11.006] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 10/18/2011] [Accepted: 11/07/2011] [Indexed: 12/11/2022]
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Chiva-Blanch G, Urpi-Sarda M, Llorach R, Rotches-Ribalta M, Guillén M, Casas R, Arranz S, Valderas-Martinez P, Portoles O, Corella D, Tinahones F, Lamuela-Raventos RM, Andres-Lacueva C, Estruch R. Differential effects of polyphenols and alcohol of red wine on the expression of adhesion molecules and inflammatory cytokines related to atherosclerosis: a randomized clinical trial. Am J Clin Nutr 2012; 95:326-34. [PMID: 22205309 DOI: 10.3945/ajcn.111.022889] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Few clinical studies have focused on the alcohol-independent cardiovascular effects of the phenolic compounds of red wine (RW). OBJECTIVE We aimed to evaluate the effects of ethanol and phenolic compounds of RW on the expression of inflammatory biomarkers related to atherosclerosis in subjects at high risk of cardiovascular disease. DESIGN Sixty-seven high-risk, male volunteers were included in a randomized, crossover consumption trial. After a washout period, all subjects received RW (30 g alcohol/d), the equivalent amount of dealcoholized red wine (DRW), or gin (30 g alcohol/d) for 4 wk. Before and after each intervention period, 7 cellular and 18 serum inflammatory biomarkers were evaluated. RESULTS Alcohol increased IL-10 and decreased macrophage-derived chemokine concentrations, whereas the phenolic compounds of RW decreased serum concentrations of intercellular adhesion molecule-1, E-selectin, and IL-6 and inhibited the expression of lymphocyte function-associated antigen 1 in T lymphocytes and macrophage-1 receptor, Sialil-Lewis X, and C-C chemokine receptor type 2 expression in monocytes. Both ethanol and phenolic compounds of RW downregulated serum concentrations of CD40 antigen, CD40 ligand, IL-16, monocyte chemotactic protein-1, and vascular cell adhesion molecule-1. CONCLUSION The results suggest that the phenolic content of RW may modulate leukocyte adhesion molecules, whereas both ethanol and polyphenols of RW may modulate soluble inflammatory mediators in high-risk patients. The trial was registered in the International Standard Randomized Controlled Trial Number Register at http://www.isrctn.org/ as ISRCTN88720134.
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Affiliation(s)
- Gemma Chiva-Blanch
- Department of Internal Medicine, Hospital Clínic, Institut d'Investigació Biomèdica August Pi i Sunyer, Barcelona, Spain
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Xiao HB, Jun F, Sun ZL. Effect of 1,3,5,8-tetrahydroxyxanthone on carcass characteristics and meat quality traits in pigs. ANIMAL PRODUCTION SCIENCE 2012. [DOI: 10.1071/an12001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Angiopoietin-like protein 3 (Angptl3) may promote adipose formation. The present study investigated the beneficial effect of 1,3,5,8-tetrahydroxyxanthone (Xan), a naturally occurring polyphenol agent, on carcass characteristics and meat quality in pigs and the mechanisms involved. Forty-eight Duroc × Landrace × Yorkshire pigs (65.3 ± 7.8 kg) were randomly divided into four groups: control group, untreated high lipid diet (HLD) group and two groups of HLD with Xan (1 or 3%). Forty-two days later, Xan (1 or 3%) treatment significantly increased percentage lean, loin eye area, colour, expression and activity of adipose tissue lipoprotein lipase activity and decreased percentage fat, backfat thickness, total cholesterol concentration, triglyceride concentration, and Angptl3 mRNA expression. The present results suggest that the beneficial effect of Xan on carcass characteristics and meat quality may be related to decreased expression of Angptl3 in pig.
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Chong SC, Dollah MA, Chong PP, Maha A. Phaleria macrocarpa (Scheff.) Boerl fruit aqueous extract enhances LDL receptor and PCSK9 expression in vivo and in vitro. JOURNAL OF ETHNOPHARMACOLOGY 2011; 137:817-827. [PMID: 21763412 DOI: 10.1016/j.jep.2011.06.041] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 06/22/2011] [Accepted: 06/28/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Phaleria macrocarpa (Scheff.) Boerl (Pm) has been shown to reduce cholesterol level in vitro and in vivo experiment. AIM OF THE STUDY This study investigated the effects of Pm fruit on weight control and mechanistic basis of its anti-hypercholesterolemic effect in both in vivo and in vitro. MATERIALS AND METHOD In the in vivo study, thirty six male Sprague Dawley were randomized to six groups. Five groups were induced into hypercholesterolemia by giving 3% cholesterol enriched-diet for 52 days while one group acted as control. The rats were then treated with Pm extract (0, 20, 30 and 40 mg/ml) or simvastatin for 84 days. The following parameters were determined: (1) body weight, (2) blood lipid profile (total cholesterol, triglyceride, HDL and LDL) and (3) hepatic LDL receptor (160 kDa and 120 kDa) and PCSK9 proteins. In the in vitro study, HepG2 cells were cultured in serum-free RPMI supplemented with 0.2% BSA with or without LDL and in the presence of Pm extract (0, 0.1, 2, 40 and 1,000 μg/ml) or simvastatin (4.60 μg/ml) for 24h. The abundance of both LDL receptor and PCSK9 proteins and mRNA were investigated. RESULTS Pm extract significantly (P<0.05) reduced body weight gain, total cholesterol, triglycerides, HDL LDL levels and upregulated hepatic LDL receptor as well as PCSK9 proteins of hypercholesterolemic rats. These results were supported by studies in HepG2 cells whereby Pm extract also significantly upregulated both LDL receptor and PCSK9 at protein and mRNA levels. CONCLUSION This study enhances the potential usage of Pm fruit for controlling the body weight of obese people and for treating hypercholesterolemia.
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Affiliation(s)
- Soo Ching Chong
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, University Putra Malaysia, 43400 UPM, Serdang, Selangor, Malaysia
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Yue H, Wang J, Qi X, Ji F, Liu M, Wu S, Zhang H, Qi G. Effects of dietary oxidized oil on laying performance, lipid metabolism, and apolipoprotein gene expression in laying hens. Poult Sci 2011; 90:1728-36. [DOI: 10.3382/ps.2011-01354] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Peluzio MDCG, Teixeira TFS, Oliveira VP, Sabarense CM, Dias CMGC, Abranches MV, Maldonado IRDSC. Grape extract and α-Tocopherol effect in cardiovascular disease model of Apo E -/- Mice. Acta Cir Bras 2011; 26:253-60. [DOI: 10.1590/s0102-86502011000400002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Accepted: 03/18/2011] [Indexed: 11/21/2022] Open
Abstract
PURPOSE: To verify the effect of consumption of grape extract isolated or combined with α-tocopherol supplementation on atherosclerosis model with Apo E -/- mice. METHODS: After six weeks of atherogenic diet, Apo E -/- mice were divided into the following groups: Control, Grape, Tocopherol and Grape plus Tocopherol. The treatment progressed for 11 weeks when animals were submitted to euthanasia. RESULTS: All the treatments presented hypocholesterolemic effect with reduction of serum and liver cholesterol levels. This effect was parallel to an increase in the fecal excretion of cholesterol. There was also a higher fecal excretion of saturated fatty acids in groups receiving grape extract or α-tocopherol. All the groups treated presented a tendency to show higher levels of vitamin E. The fatty acid profile showed a tendency for monounsaturated fatty acid preservation after grape extract and α-tocopherol consumption. Morphological analysis revealed a lower degree of evolution of the atherosclerotic plaque of the animals that were fed α-tocopherol combined with grape extract, even when no difference was found in the size of the largest lesion. CONCLUSION: A synergistic effect between the polyphenols and α-tocopherol was observed, resulting in diminished evolution of atherosclerosis and a greater beneficial effect on atherosclerosis than the isolated consumption of antioxidants.
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Delmas D, Lin HY. Role of membrane dynamics processes and exogenous molecules in cellular resveratrol uptake: consequences in bioavailability and activities. Mol Nutr Food Res 2011; 55:1142-53. [PMID: 21648069 DOI: 10.1002/mnfr.201100065] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Revised: 03/16/2011] [Accepted: 03/25/2011] [Indexed: 12/16/2022]
Abstract
In the fields of nutrition prevention and therapy treatment, numerous studies have reported interesting properties of trans-resveratrol (RSV), a natural polyphenol against pathologies such as vascular diseases, cancers, viral infections and neurodegenerative processes. These beneficial effects are supported by more studies showing the pleiotropic actions of RSV. Nevertheless, a crucial question concerning these effects is how the polyphenol, when applied to an organism, gains access to its targets. In this review, we focus on the biochemical and biological parameters involved in RSV transport, particularly the role of the phospholipid bilayer in RSV uptake (passive diffusion, carrier-mediated transport) and of exogenous molecules modulating RSV transport and effects. The dynamic processes of the plasma membrane reveal the importance of the role of lipid composition in the fluidity, the lipid rafts in RSV endocytosis and the ATP-binding cassette transporters in RSV efflux. Specific membrane receptors such as integrin αvβ3 contribute to RSV uptake and to activate signalling pathways involved in apoptosis. We discuss the role of intracellular receptors (i.e. aryl-hydrocarbon and estrogen receptors). In addition, circulating molecules (i.e. albumin, haemoglobin, fatty acids, lipoproteins) play a role as RSV carriers. Finally, we developed a hypothesis concerning the relation between RSV uptake and its biological activities.
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Perona JS, Fitó M, Covas MI, Garcia M, Ruiz-Gutierrez V. Olive oil phenols modulate the triacylglycerol molecular species of human very low-density lipoprotein. A randomized, crossover, controlled trial. Metabolism 2011; 60:893-9. [PMID: 20934731 DOI: 10.1016/j.metabol.2010.08.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2010] [Revised: 08/20/2010] [Accepted: 08/23/2010] [Indexed: 01/29/2023]
Abstract
Virgin olive oil phenolic compounds have been revealed to be potent antioxidants as part of the Mediterranean diet. To test the hypothesis that these phenolics can modulate the serum and very low-density lipoprotein (VLDL) triacylglycerol concentrations in humans, a double-blind, randomized, crossover trial was designed. Thirty-three participants received 25 mL/d of refined olive oil (devoid of phenolic content [PC]), common olive oil (PC = 370 mmol/kg), and virgin olive oil (PC = 825 mmol/kg) in a Latin square design. The 3 olive oils were administered over 3 periods of 3 weeks, each one preceded by 2-week washout periods. All analyses were carried out on an intention-to-treat basis. The interventions did not modify the concentrations of serum and low-density lipoprotein cholesterol and triacylglycerol; but they exerted changes in the cholesterol, triacylglycerol, and phospholipid content of VLDL. The virgin olive oil consumption led to increased oleic and palmitic acids, as well as decreased linoleic acid, in VLDL. The main outcome was the significant dose-dependent linear trend between the PC in the olive oils and the palmitic (16:0) and linoleic (18:2 n-6) acid and their corresponding triacylglycerol molecular species in VLDL.
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Affiliation(s)
- Javier S Perona
- Group of Nutrition and Lipid Metabolism, Instituto de la Grasa (CSIC), Av. Padre García Tejero, 4, 41012 Seville, Spain.
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Aramwit P, Petcharat K, Supasyndh O. Efficacy of mulberry leaf tablets in patients with mild dyslipidemia. Phytother Res 2011; 25:365-9. [PMID: 20687135 DOI: 10.1002/ptr.3270] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Mulberry leaf is well known for its several biological effects. The purpose of this study was to evaluate the hypolipidemic effect of mulberry leaf in non-diabetic patients with mild dyslipidemia. A within-subjects research design was conducted at the out-patient clinic in Thailand. Twenty-three patients who met the NCEP ATP III criteria guideline for dyslipidemia and failed a 4 week diet therapy were enrolled and assigned to receive three tablets of 280 mg mulberry leaf tablet three times a day before meals for a period of 12 weeks. Routine blood analyses including lipid parameters and liver function tests were performed every 4 weeks. At 4 and 8 weeks of mulberry leaf tablet therapy, triglyceride was significantly decreased by 10.2% (p < 0.05) and 12.5% (p < 0.05), respectively, from baseline. At the end of the study, total cholesterol, triglyceride and LDL were significantly decreased by 4.9% (p < 0.05), 14.1% (p < 0.05) and 5.6% (p < 0.05), respectively, from baseline, whereas HDL was significantly increased by 19.7% (p < 0.05). Even though some patients experienced side effects such as mild diarrhea (26%), dizziness (8.7%) or constipation and bloating (4.3%), mulberry leaf tablet therapy is still capable and safe in reducing cholesterol levels and enhancing HDL in patients with mild dyslipidemia.
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Affiliation(s)
- Pornanong Aramwit
- Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, Thailand.
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