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Siqueira JS, Garcia JL, Ferron AJT, Moreto F, Sormani LE, Costa MR, Palacio TLN, Nai GA, Aldini G, Francisqueti-Ferron FV, Correa CR, D'Amato A. Proteomic study of gamma-oryzanol preventive effect on a diet-induced non-alcoholic fatty liver disease model. J Nutr Biochem 2024; 127:109607. [PMID: 38432453 DOI: 10.1016/j.jnutbio.2024.109607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/11/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common liver disease associated with obesity and diabetes prevalence. The use of natural compounds has become an attractive approach to prevent NAFLD and its progression. Gamma-oryzanol (Orz) is a natural compound whose beneficial effects on chronic metabolic diseases have been reported. Therefore, we aimed to investigate the preventive effect of Orz on the hepatic proteome in a diet induced NAFLD model. Wistar rats were randomly distributed into three experimental groups (n=6/group) according to the diet received for 30 weeks: Control group, high sugar-fat (HSF) group, and HSF+Orz group. The isolated Orz was added to the chow at the dose of 0.5% (w/w). We evaluated the nutritional profile, characterized the presence of steatosis through histological analysis, triglyceride content in liver tissue and hepatic inflammation. Next, we performed label-free quantitative proteomics of hepatic tissue. Network analysis was performed to describe involved protein pathways. NAFLD induction was characterized by the presence of hepatic steatosis. Orz prevented lipid accumulation. The compound prevented alterations of the hepatic proteome, highlighted by the modulation of lipid metabolism, inflammation, oxidative stress, xenobiotic metabolism, and the sirtuin signaling pathway. It was possible to identify key altered pathways of NAFLD pathophysiology modulated by Orz which may provide insights into NAFLD treatment targets.
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Affiliation(s)
| | | | | | - Fernando Moreto
- Botucatu Medical School, São Paulo State University (Unesp), Botucatu, Brazil.
| | | | | | | | - Gisele Alborghetti Nai
- Department of Pathology, Medical School, Universidade do Oeste Paulista (UNOESTE), Presidente Prudente, Brazil.
| | - Giancarlo Aldini
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy.
| | | | | | - Alfonsina D'Amato
- Department of Pharmaceutical Sciences, University of Milan, Milan, Italy.
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2
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Nutrigenomic Effects of White Rice and Brown Rice on the Pathogenesis of Metabolic Disorders in a Fruit Fly Model. Molecules 2023; 28:molecules28020532. [PMID: 36677591 PMCID: PMC9865196 DOI: 10.3390/molecules28020532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/24/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Consumption of white rice (WR) has been shown to predispose individuals to metabolic disorders. However, brown rice (BR), which is relatively richer in bioactive compounds, possesses anti-glycaemic and antioxidant effects. In this study, fifteen cultivars of paddy rice that are predominantly consumed in North West Nigeria were analysed for their nutritional composition, bioactive contents and effects on metabolic outcomes in a fruit fly model. Gene expression analyses were conducted on the whole fly, targeting dPEPCK, dIRS, and dACC. The protein, carbohydrate, and fibre contents and bioactives of all BR cultivars were significantly different (p < 0.05) from the WR cultivars. Moreover, it was demonstrated that the glucose and trehalose levels were significantly higher (p < 0.05), while glycogen was significantly lower (p < 0.05) in the WR groups compared to the BR groups. Similarly, the expression of dACC and dPEPCK was upregulated, while that of dIRS was downregulated in the WR groups compared to the BR groups. Sex differences (p < 0.05) were observed in the WR groups in relation to the nutrigenomic effects. Our findings confirm metabolic perturbations in fruit flies following consumption of WR via distortion of insulin signalling and activation of glycogenolysis and gluconeogenesis. BR prevented these metabolic changes possibly due to its richer nutritional composition.
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Golzarand M, Toolabi K, Eskandari Delfan S, Mirmiran P. The effect of brown rice compared to white rice on adiposity indices, lipid profile, and glycemic markers: a systematic review and meta-analysis of randomized controlled trials. Crit Rev Food Sci Nutr 2021; 62:7395-7412. [PMID: 33905269 DOI: 10.1080/10408398.2021.1914541] [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: 10/21/2022]
Abstract
A few randomized controlled trials (RCTs) have assessed the effect of brown rice consumption on metabolic parameters compared to white rice, with inconsistent findings. Therefore, the present systematic review and meta-analysis was designed to evaluate the effect of brown rice on adiposity indices, lipid profile, and glycemic markers in adult subjects compared to white rice. In this study, PubMed/Medline, Scopus, Web of Sciences, and Embase databases were comprehensively searched until March 2021. Thirteen RCTs were selected and then included in the meta-analysis. As reported, brown rice significantly reduced weight by -1.63 kg (95% CI: -2.15 to -1.11, I2=97%, n = 6), body mass index (BMI) by -0.58 kg/m2 (95% CI: -0.78 to -0.37, I2=96%, n = 6), and waist circumference by -2.56 cm (95% CI: -4.86 to -0.26, I2=88%, n = 5) compared with white rice. Moreover, it had no significant effect on lipid profile and glycemic markers. Besides, pre-germinated brown rice significantly declined weight (-1.75 kg, 95% CI: -2.70 to -0.81, I2=99%, n = 4), total cholesterol (-24.22 mg/dl, 95% CI: -33.03 to -15.41, I2=78%, n = 5), triglyceride (TG) (-43.28 mg/dl, 95% CI: -74.05 to -12.50, I2=90%, n = 5), low-density lipoprotein (LDL) (-20.05 mg/dl, 95% CI: -29.57 to -10.52, I2=71%, n = 5), and fasting blood glucose (FBG) (-15.83 mg/dl, 95% CI: -25.20 to -6.46, I2=91%, n = 5). In accordance with Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach, the certainly of the included evidence was low and very low. The results of the present study indicate that, brown rice has anti-obesity effects in comparison with white rice; however, it has no beneficial effects on lipid profile and glycemic markers. Contrary to brown rice, it was shown that, pre-germinated brown rice significantly decreases body weight and improves lipid profile and FBG levels compared to white rice. Accordingly, our results indicate that, pre-germinated brown rice has better functional effects on promoting lipid profile and FBG compared to brown rice.
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Affiliation(s)
- Mahdieh Golzarand
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Karamollah Toolabi
- Department of Surgery, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Parvin Mirmiran
- Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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4
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Mir SA, Shah MA, Bosco SJD, Sunooj KV, Farooq S. A review on nutritional properties, shelf life, health aspects, and consumption of brown rice in comparison with white rice. Cereal Chem 2020. [DOI: 10.1002/cche.10322] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shabir Ahmad Mir
- Department of Food Science & Technology Government College for Women Srinagar Jammu & Kashmir India
| | - Manzoor Ahmad Shah
- Department of Food Science & Technology Government PG College for Women Gandhi Nagar Jammu & Kashmir India
| | - S. John Don Bosco
- Department of Food Science and Technology Pondicherry University Puducherry India
| | | | - Saqib Farooq
- Department of Food Technology Islamic University of Science & Technology Awantipora Jammu & Kashmir India
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5
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Saleh ASM, Wang P, Wang N, Yang L, Xiao Z. Brown Rice Versus White Rice: Nutritional Quality, Potential Health Benefits, Development of Food Products, and Preservation Technologies. Compr Rev Food Sci Food Saf 2019; 18:1070-1096. [DOI: 10.1111/1541-4337.12449] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 03/05/2019] [Accepted: 03/22/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Ahmed S. M. Saleh
- College of Grain Science and TechnologyShenyang Normal Univ. Shenyang 110034 Liaoning China
- Dept. of Food Science and Technology, Faculty of AgricultureAssiut Univ. Assiut 71526 Egypt
| | - Peng Wang
- College of Grain Science and TechnologyShenyang Normal Univ. Shenyang 110034 Liaoning China
| | - Na Wang
- College of Grain Science and TechnologyShenyang Normal Univ. Shenyang 110034 Liaoning China
| | - Liu Yang
- College of Grain Science and TechnologyShenyang Normal Univ. Shenyang 110034 Liaoning China
| | - Zhigang Xiao
- College of Grain Science and TechnologyShenyang Normal Univ. Shenyang 110034 Liaoning China
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6
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Development of a functional rice bran cookie rich in γ-oryzanol. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2019. [DOI: 10.1007/s11694-018-00022-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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The ameliorative effect of Protaetia brevitarsis Larvae in HFD-induced obese mice. Food Sci Biotechnol 2019; 28:1177-1186. [PMID: 31275718 DOI: 10.1007/s10068-018-00553-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 12/09/2018] [Accepted: 12/28/2018] [Indexed: 12/16/2022] Open
Abstract
Protaetia brevitarsis Lewis (P. brevitarsis) larvae, edible insect, traditionally is consumed for various health benefits. However, little information is available with respect to its direct anti-obesity effects. Thus, the present study was designed to investigate the regulatory effect of P. brevitarsis against high-fat diet (HFD)-induced obese mice. HFD-fed mice showed an increase in the body weight and serum levels of total cholesterol as well as low-density lipoprotein-cholesterol, and triglycerides. The administration of P. brevitarsis to obese mice induced a reduction in their body weight, lipid accumulation in liver and serum lipid parameter compared with the HFD fed mice. P. brevitarsis also inhibited the expression of obesity-related genes such as CCAAT/enhancer-binding protein alpha and fatty acid synthesis in 3T3-L1 cells. Moreover, oleic acid was identified as predominant fatty acid of P. brevitarsis by gas chromatography analysis. Conclusively, these findings suggested that P. brevitarsis may help to prevent obesity and obesity-related metabolic diseases.
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Lee S, Kim MB, Kim C, Hwang JK. Whole grain cereal attenuates obesity-induced muscle atrophy by activating the PI3K/Akt pathway in obese C57BL/6N mice. Food Sci Biotechnol 2017; 27:159-168. [PMID: 30263736 DOI: 10.1007/s10068-017-0277-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 09/09/2017] [Accepted: 09/29/2017] [Indexed: 02/07/2023] Open
Abstract
Whole grain comprises starchy endosperm, germ, and bran tissues, which contain fibers, minerals, vitamins, and several phytochemicals. Whole grain cereal (WGC)-based food products supply beneficial nutrients (essential for health care) and macronutrients (essential for body maintenance and support). The present study investigated the inhibitory effect of WGC on obesity-induced muscle atrophy in obese C57BL/6N mice. WGC attenuated the body weight gain, fat pad mass, adipocyte size, food efficiency ratio, serum lipid profile, and non-alcoholic fatty liver. Furthermore, WGC increased muscle mass and muscle strength by activating the phosphatidylinositol 3-kinase/protein kinase B pathway. Accordingly, WGC up-regulated the expression of factors that regulate muscle hypertrophy and myogenesis, whereas it down-regulated the atrophy-related factors. Overall, these results demonstrate that WGC effectively attenuates obesity-induced muscle atrophy as well as overall obesity, suggesting that WGC can be used as a functional food.
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Affiliation(s)
- Sein Lee
- 1Department of Biomaterials Science and Engineering, Yonsei University, Seoul, 03722 Republic of Korea
| | - Mi-Bo Kim
- 2Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Republic of Korea
| | - Changhee Kim
- 2Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Republic of Korea
| | - Jae-Kwan Hwang
- 1Department of Biomaterials Science and Engineering, Yonsei University, Seoul, 03722 Republic of Korea.,2Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, 03722 Republic of Korea
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Adamu HA, Imam MU, Der-Jiun O, Ismail M. In utero Exposure to Germinated Brown Rice and Its GABA Extract Attenuates High-Fat-Diet-Induced Insulin Resistance in Rat Offspring. JOURNAL OF NUTRIGENETICS AND NUTRIGENOMICS 2017; 10:19-31. [PMID: 28399529 DOI: 10.1159/000469663] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Accepted: 03/09/2017] [Indexed: 11/19/2022]
Abstract
BACKGROUND Numerous studies have reported on the influence of diet on insulin resistance. Our study provides insight into the effect of germinated brown rice (GBR) and γ-aminobutyric acid (GABA) on early environment-driven programming and susceptibility to insulin resistance in rat offspring. METHODS Male rat offspring from female Sprague-Dawley rats fed with a high-fat diet (HFD) alone, HFD + GBR, or HFD + GABA extract throughout pregnancy and lactation were weaned 4 weeks after delivery and followed up for 8 weeks. A biochemical analysis and an assessment of the hepatic expression of insulin signaling genes were performed. RESULTS The results showed that intrauterine exposure to HFD caused metabolic perturbations in rat offspring which gravitated towards insulin resistance even though the rat offspring did not consume an HFD. GBR and GABA attenuated the HFD-induced changes by underlying regulation of the insulin signaling genes. CONCLUSIONS The results suggest that intake of GBR and GABA during pregnancy and lactation can influence the programming of genes in rat offspring, thereby enhancing insulin sensitivity.
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Affiliation(s)
- Hadiza Altine Adamu
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
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Minatel IO, Francisqueti FV, Corrêa CR, Lima GPP. Antioxidant Activity of γ-Oryzanol: A Complex Network of Interactions. Int J Mol Sci 2016; 17:E1107. [PMID: 27517904 PMCID: PMC5000585 DOI: 10.3390/ijms17081107] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 06/29/2016] [Accepted: 07/07/2016] [Indexed: 12/19/2022] Open
Abstract
γ-oryzanol (Orz), a steryl ferulate extracted from rice bran layer, exerts a wide spectrum of biological activities. In addition to its antioxidant activity, Orz is often associated with cholesterol-lowering, anti-inflammatory, anti-cancer and anti-diabetic effects. In recent years, the usefulness of Orz has been studied for the treatment of metabolic diseases, as it acts to ameliorate insulin activity, cholesterol metabolism, and associated chronic inflammation. Previous studies have shown the direct action of Orz when downregulating the expression of genes that encode proteins related to adiposity (CCAAT/enhancer binding proteins (C/EBPs)), inflammatory responses (nuclear factor kappa-B (NF-κB)), and metabolic syndrome (peroxisome proliferator-activated receptors (PPARs)). It is likely that this wide range of beneficial activities results from a complex network of interactions and signals triggered, and/or inhibited by its antioxidant properties. This review focuses on the significance of Orz in metabolic disorders, which feature remarkable oxidative imbalance, such as impaired glucose metabolism, obesity, and inflammation.
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Affiliation(s)
- Igor Otavio Minatel
- Department of Chemistry and Biochemistry, Institute of Bioscience, Sao Paulo State University, Botucatu 18618-689, Brazil.
| | | | - Camila Renata Corrêa
- Department of Pathology, Botucatu Medical School, Sao Paulo State University, Botucatu 18618-970, Brazil.
| | - Giuseppina Pace Pereira Lima
- Department of Chemistry and Biochemistry, Institute of Bioscience, Sao Paulo State University, Botucatu 18618-689, Brazil.
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Polyinosinic-polycytidylic acid inhibits the differentiation of mouse preadipocytes through pattern recognition receptor-mediated secretion of tumor necrosis factor-α. Immunol Cell Biol 2016; 94:875-885. [PMID: 27311810 DOI: 10.1038/icb.2016.57] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 05/23/2016] [Accepted: 05/23/2016] [Indexed: 02/07/2023]
Abstract
Viral infections can disturb the functions of adipose tissues and thus result in metabolic diseases. Polyinosinic-polycytidylic acid (poly(I:C)), a synthetic analog of viral double-stranded RNA, induces innate antiviral responses by mimicking viral infection through the activation of pattern recognition receptors (PRRs) such as Toll-like receptor 3 (TLR3), retinoic acid-inducible gene I (RIG-I) and melanoma differentiation-associated gene 5 (MDA5). Poly(I:C) also inhibits the differentiation of mouse preadipocytes but the mechanism underlying this process remains unclear. In this study, poly(I:C) inhibited preadipocyte differentiation in a dose-dependent manner, but not in a time-dependent manner. Endogenously transfected poly(I:C) severely impaired the adipogenesis of preadipocytes compared with exogenously added poly(I:C). Low concentration of tumor necrosis factor-α (TNF-α) could effectively inhibit the preadipocyte differentiation. The effect of exogenously added poly(I:C) on inhibition of differentiation was significantly diminished in the preadipocytes of TLR3 knockout mice. By contrast, endogenously transfected poly(I:C) still inhibited the differentiation of TLR3-deficient preadipocytes. Hence, MDA5/RIG-I signaling was involved in the poly(I:C)-induced inhibition of preadipocyte differentiation. The effect of poly(I:C) stimulation, either through endogenous transfection or exogenous addition, on inhibition of differentiation was significantly diminished in the preadipocytes of TNF-α knockout mice. These results confirmed the evidence that poly(I:C) inhibited the differentiation of mouse preadipocytes through PRR-mediated secretion of TNF-α.
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12
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Shen KP, Hao CL, Yen HW, Chen CY, Chen JH, Chen FC, Lin HL. Pre-germinated brown rice prevented high fat diet induced hyperlipidemia through ameliorating lipid synthesis and metabolism in C57BL/6J mice. J Clin Biochem Nutr 2016; 59:39-44. [PMID: 27499577 PMCID: PMC4933684 DOI: 10.3164/jcbn.15-117] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 01/24/2016] [Indexed: 12/22/2022] Open
Abstract
Pre-germinated brown rice (PGBR) can ameliorate hyperlipidemia, but the action mechanism is not clear. We focus the mechanisms of PGBR prevented hyperlipidemia. Six-week-old mice were divided into: standard-regular diet (SRD), high-fat diet (HFD) and HFD with PGBR (HFD + PGBR) groups for 16 weeks. The HFD group has higher concentrations of TG, TC, HDL and Non-HDL in the blood, and a higher atherosclerosis index (AI). The TG levels in the liver, and TG, bile acid levels in the feces were enhanced; and the total adipocytokines level in adipose tissue was reduced. The HFD group had higher protein expressions of SREBP-1, SCD-1, FAS, LDLR, and CYP7α1 in the liver. Moreover, the greater expressions of SREBP-1, SCD-1, FAS and the less expressions of PPAR-α and adiponectin were in adipose tissue. In the HFD + PGBR group, the PGBR regulated the levels of TG, TC, HDL, Non-HDL, AI and adipocytokines. PGBR increased more cholesterol and bile acid exhaust in feces. The SREBP-1, SCD-1, FAS, HMGCR, LDLR, CYP7α1 and PPAR-α proteins in the liver; and the SREBP-1, SCD-1, FAS, PPAR-α and adiponectin proteins in adipose tissue were reversed by PGBR. Taken together, PGBR can improve lipid synthesis and metabolism, and we suggest PGBR is a recommendable food for controlling hyperlipidemia.
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Affiliation(s)
- Kuo-Ping Shen
- Department of Nursing, Meiho University, Pingtung 91202, Taiwan
| | - Chi-Long Hao
- Division of Cardiology, Department of Internal Medicine, Pingtung Christian Hospital, Pingtung 90053, Taiwan
| | - Hsueh-Wei Yen
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Chun-Yen Chen
- MS program for Applied Health and Biotechnology, Meiho University, Pingtung 91202, Taiwan
| | - Jia-Hao Chen
- MS program for Applied Health and Biotechnology, Meiho University, Pingtung 91202, Taiwan
| | - Fu-Chih Chen
- Department of Chemistry, National Cheng-Kung University, Tainan 70101, Taiwan
| | - Hui-Li Lin
- Department of Food Science and Nutrition, Meiho University, Pingtung 91202, Taiwan
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Han YH, Kee JY, Park J, Kim DS, Shin S, Youn DH, Kang J, Jung Y, Lee YM, Park JH, Kim SJ, Um JY, Hong SH. Lipin1-Mediated Repression of Adipogenesis by Rutin. THE AMERICAN JOURNAL OF CHINESE MEDICINE 2016; 44:565-78. [PMID: 27109161 DOI: 10.1142/s0192415x16500312] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Rutin, also called rutoside or quercetin-3-O-rutinoside and sophorin, is a glycoside between the flavonol quercetin and the disaccharide rutinose. Although many effects of rutin have been reported in vitro and in vivo, the anti-adipogenic effects of rutin have not been fully reported. The aim of this study was to confirm how rutin regulates adipocyte related factors. In this study, rutin decreased the expressions of adipogenesis-related genes, including peroxisome proliferators, activated receptor [Formula: see text] (PPAR[Formula: see text], CCAAT/enhancer-binding protein [Formula: see text] (C/EBP[Formula: see text], fatty acid synthase, adipocyte fatty acid-binding protein, and lipoprotein lipase in 3T3-L1 cells. Rutin also repressed the expression of lipin1, which is an upstream regulator that controls PPAR[Formula: see text] and C/EBP[Formula: see text]. In addition, when 3T3-L1 was transfected with lipin1 siRNA to block lipin1 function, rutin did not affect the expressions of PPAR[Formula: see text] and C/EBP[Formula: see text]. These results suggest that rutin has an anti-adipogenic effect that acts through the suppression of lipin1, as well as PPAR[Formula: see text] and C/EBP[Formula: see text].
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Affiliation(s)
- Yo-Han Han
- * Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Republic of Korea
| | - Ji-Ye Kee
- * Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Republic of Korea
| | - Jinbong Park
- ‡ Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Dae-Seung Kim
- * Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Republic of Korea
| | - Soyoung Shin
- † Department of Pharmacy, College of Pharmacy, Wonkwang University, Iksan, Jeonbuk 54538, Republic of Korea
| | - Dong-Hyun Youn
- ‡ Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - JongWook Kang
- ‡ Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Yunu Jung
- ‡ Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Young-Mi Lee
- * Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Republic of Korea
| | - Jin-Han Park
- § Division of Biotechnology and Convergence, Republic of Korea
| | - Su-Jin Kim
- ¶ Department of Cosmeceutical Science, Daegu Hanny University, Yugok-dong, Kyungsan 38578, Republic of Korea
| | - Jae-Young Um
- ‡ Department of Pharmacology, College of Korean Medicine, Kyung Hee University, Dongdaemun-gu, Seoul 02447, Republic of Korea
| | - Seung-Heon Hong
- * Department of Oriental Pharmacy, College of Pharmacy, Wonkwang-Oriental Medicines Research Institute, Republic of Korea
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Lee YM, Han SI, Won YJ, Lee E, Park E, Hwang SY, Yeum KJ. Black Rice with Giant Embryo Attenuates Obesity-Associated Metabolic Disorders in ob/ob Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2492-2497. [PMID: 26653400 DOI: 10.1021/acs.jafc.5b05361] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Obesity is closely associated with metabolic disorders such as hyperglycemia and dyslipidemia. Leptin-deficient ob/ob mice (C57BL/6J-ob/ob) and C57BL/6J mice were randomly assigned to a diet of black rice with giant embryo (BR), white rice (WR), or AIN-93G (control) and pair-fed for 14 weeks. Although there was no significant difference in body weight, BR-fed ob/ob mice had (1) significantly lower body fat mass than WR- and control-fed ob/ob mice determined by dual-energy X-ray absorptiometry; (2) significantly lower blood glucose, serum insulin, and triacylglycerol levels than control-fed ob/ob mice; and (3) significantly lower liver weight, hepatic triacylglycerol, and hepatic lipid droplets than both WR- and control-fed ob/ob mice. Furthermore, DNA damage in the liver, determined by phosphorylated H2AX protein, and in the kidney, determined by single-cell gel electrophoresis, was significantly lower in BR-fed than WR- and control-fed ob/ob mice. This study indicates that BR ameliorates obesity and its related metabolic disorders.
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Affiliation(s)
- Yoon-Mi Lee
- Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University , Chungju-si, South Korea
| | - Sank-Ik Han
- National Institute of Crop Science, Rural Development Administration , Miryang-si, South Korea
| | - Yu-Jin Won
- Department of Biomedical Chemistry, College of Biomedical and Health Sciences, Konkuk University , Chungju-si, South Korea
| | - Eunji Lee
- Department of Food and Nutrition, Kyungnam University , Changwon, South Korea
| | - Eunju Park
- Department of Food and Nutrition, Kyungnam University , Changwon, South Korea
| | - Seock-Yeon Hwang
- Department of Biomedical Laboratory Science, College of Health and Medical Science, Daejeon University , Daejeon-si, South Korea
| | - Kyung-Jin Yeum
- Division of Food Bioscience, College of Biomedical and Health Sciences, Konkuk University , Chungju-si, South Korea
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Antiobesity Effects of Unripe Rubus coreanus Miquel and Its Constituents: An In Vitro and In Vivo Characterization of the Underlying Mechanism. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:4357656. [PMID: 26904142 PMCID: PMC4745304 DOI: 10.1155/2016/4357656] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 12/07/2015] [Accepted: 12/27/2015] [Indexed: 01/04/2023]
Abstract
Background. The objective of the present study was to perform a bioguided fractionation of unripe Rubus coreanus Miquel (uRC) and evaluate the lipid accumulation system involvement in its antiobesity activity as well as study the uRC mechanism of action. Results. After the fractionation, the BuOH fraction of uRC (uRCB) was the most active fraction, suppressing the differentiation of 3T3-L1 adipocytes in a dose-dependent manner. Moreover, after an oral administration for 8 weeks in HFD-induced obese mice, uRCB (10 and 50 mg/kg/day) produced a significant decrease in body weight, food efficiency ratio, adipose tissue weight and LDL-cholesterol, serum glucose, TC, and TG levels. Similarly, uRCB significantly suppressed the elevated mRNA levels of PPARγ in the adipose tissue in vivo. Next, we investigated the antiobesity effects of ellagic acid, erycibelline, 5-hydroxy-2-pyridinemethanol, m-hydroxyphenylglycine, and 4-hydroxycoumarin isolated from uRCB. Without affecting cell viability, five bioactive compounds decreased the lipid accumulation in the 3T3-L1 cells and the mRNA expression levels of key adipogenic genes such as PPARγ, C/EBPα, SREBP-1c, ACC, and FAS. Conclusion. These results suggest that uRC and its five bioactive compounds may be a useful therapeutic agent for body weight control by downregulating adipogenesis and lipogenesis.
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Justo ML, Claro C, Zeyda M, Stulnig TM, Herrera MD, Rodríguez-Rodríguez R. Rice bran prevents high-fat diet-induced inflammation and macrophage content in adipose tissue. Eur J Nutr 2015; 55:2011-9. [DOI: 10.1007/s00394-015-1015-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 08/05/2015] [Indexed: 02/07/2023]
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Bae CR, Park YK, Cha YS. Quercetin-rich onion peel extract suppresses adipogenesis by down-regulating adipogenic transcription factors and gene expression in 3T3-L1 adipocytes. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2014; 94:2655-2660. [PMID: 24634340 DOI: 10.1002/jsfa.6604] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 02/02/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Onion peel contains a high amount of quercetin, which has been reported to have anti-cholesterol, antithrombotic and insulin-sensitizing properties. This study aimed to elucidate the anti-adipogenic effects of quercetin-rich onion peel extract (OPE) and to compare it with commercially available quercetin using 3T3-L1 preadipocytes. RESULTS Without affecting cell viability, both OPE and quercetin averted adipogenesis, as characterized by dose-dependent decreases in intracellular triglyceride content and glycerol 3-phosphate dehydrogenase activity, but the effect was more pronounced with OPE than with quercetin. The mRNA expression levels of key adipogenic genes such as PPARγ, C/EBPα, FABP4, aP2 and LPL were decreased in a dose-dependent manner by both OPE and quercetin. CONCLUSION The results indicate that OPE treatment significantly prevents intracellular lipid accumulation via hyperactivation of genes regulating lipolysis as compared with quercetin alone.
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Affiliation(s)
- Cho-Rong Bae
- Department of Food Science and Human Nutrition, and Research Institute of Humans Ecology, Chonbuk National University, 567 Baekje-daero, deokjin-gu, Jeonju-si, Jeollabuk-do, 561-756, Republic of Korea
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Cáceres PJ, Martínez-Villaluenga C, Amigo L, Frias J. Assessment on proximate composition, dietary fiber, phytic acid and protein hydrolysis of germinated Ecuatorian brown rice. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2014; 69:261-267. [PMID: 25086701 DOI: 10.1007/s11130-014-0433-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Germinated brown rice (GBR) is considered healthier than brown rice (BR) but its nutritive value has been hardly studied. Since nutritive quality of GBR depends on genetic diversity and germination conditions, six Ecuadorian BR varieties were germinated at 28 and 34 ºC for 48 and 96 h in darkness and proximate composition, dietary fiber fractions, phytic acid content as well as degree of protein hydrolysis and peptide content were studied. Protein, lipids, ash and available carbohydrate ranged 7.3-10.4%, 2.0-4.0%, 0.8-1.5% and 71.6 to 84.0%, respectively, in GBR seedlings. Total dietary fiber increased during germination (6.1-13.6%), with a large proportion of insoluble fraction, while phytic acid was reduced noticeably. In general, protein hydrolysis occurred during germination was more accused at 28 ºC for 48 h. These results suggest that GBR can be consumed directly as nutritive staple food for a large population worldwide contributing to their nutritional requirements.
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Affiliation(s)
- Patricio J Cáceres
- Escuela Superior Politécnica del Litoral (ESPOL), Campus Gustavo Galindo Velasco, km 30, 5 Vía Perimetral, Guayaquil, Ecuador
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Kirenol inhibits adipogenesis through activation of the Wnt/β-catenin signaling pathway in 3T3-L1 adipocytes. Biochem Biophys Res Commun 2014; 445:433-8. [PMID: 24530909 DOI: 10.1016/j.bbrc.2014.02.017] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 02/05/2014] [Indexed: 01/31/2023]
Abstract
Kirenol, a natural diterpenoid compound, has been reported to possess anti-oxidant, anti-inflammatory, anti-allergic, and anti-arthritic activities; however, its anti-adipogenic effect remains to be studied. The present study evaluated the effect of kirenol on anti-adipogenesis through the activation of the Wnt/β-catenin signaling pathway. Kirenol prevented intracellular lipid accumulation by down-regulating key adipogenesis transcription factors [peroxisome proliferator-activated receptor γ (PPARγ), CCAAT/enhancer binding proteins α (C/EBPα), and sterol regulatory element binding protein-1c (SREBP-1c)] and lipid biosynthesis-related enzymes [fatty acid synthase (FAS) and acetyl-CoA carboxylase (ACC)], as well as adipocytokines (adiponectin and leptin). Kirenol effectively activated the Wnt/β-catenin signaling pathway, in which kirenol up-regulated the expression of low density lipoprotein receptor related protein 6 (LRP6), disheveled 2 (DVL2), β-catenin, and cyclin D1 (CCND1), while it inactivated glycogen synthase kinase 3β (GSK3β) by increasing its phosphorylation. Kirenol down-regulated the expression levels of PPARγ and C/EBPα, which were up-regulated by siRNA knockdown of β-catenin. Overall, kirenol is capable of inhibiting the differentiation and lipogenesis of 3T3-L1 adipocytes through the activation of the Wnt/β-catenin signaling pathway, suggesting its potential as natural anti-obesity agent.
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