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Siddiqui SA, Azmy Harahap I, Suthar P, Wu YS, Ghosh N, Castro-Muñoz R. A Comprehensive Review of Phytonutrients as a Dietary Therapy for Obesity. Foods 2023; 12:3610. [PMID: 37835263 PMCID: PMC10572887 DOI: 10.3390/foods12193610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/15/2023] Open
Abstract
Obesity is a complex medical condition mainly caused by eating habits, genetics, lifestyle, and medicine. The present study deals with traditional diets like the Mediterranean diet, Nordic diet, African Heritage diet, Asian diet, and DASH, as these are considered to be sustainable diets for curing obesity. However, the bioavailability of phytonutrients consumed in the diet may vary, depending on several factors such as digestion and absorption of phytonutrients, interaction with other substances, cooking processes, and individual differences. Hence, several phytochemicals, like polyphenols, alkaloids, saponins, terpenoids, etc., have been investigated to assess their efficiencies and safety in the prevention and treatment of obesity. These phytochemicals have anti-obesity effects, mediated via modulation of many pathways, such as decreased lipogenesis, lipid absorption, accelerated lipolysis, energy intake, expenditure, and preadipocyte differentiation and proliferation. Owing to these anti-obesity effects, new food formulations incorporating these phytonutrients were introduced that can be beneficial in reducing the prevalence of obesity and promoting public health.
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Affiliation(s)
- Shahida Anusha Siddiqui
- Department of Biotechnology and Sustainability, Technical University of Munich, Essigberg 3, 94315 Straubing, Germany
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing Str. 7, 49610 Quakenbrück, Germany
| | | | - Priyanka Suthar
- Department of Food Science and Technology, Dr. Y. S. Parmar University of Horticulture and Forestry, Solan 173230, Himachal Pradesh, India;
| | - Yuan Seng Wu
- School of Medical and Life Sciences, Sunway University, Subang Jaya 47500, Malaysia;
| | - Nibedita Ghosh
- Department of Pharmacology, Girijananda Chowdhury University, Guwahati 781017, Assam, India;
| | - Roberto Castro-Muñoz
- Tecnologico de Monterrey, Campus Toluca, Av. Eduardo Monroy Cárdenas 2000, San Antonio Buenavista, Toluca de Lerdo 50110, Mexico
- Department of Sanitary Engineering, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, G. Narutowicza St. 11/12, 80-233 Gdansk, Poland
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Guo C, Shen W, Jin W, Jia X, Ji Z, Jinling L, Bin L. Effects of epigallocatechin gallate, caffeine, and their combination on fat accumulation in high-glucose diet-fed Caenorhabditis elegans. Biosci Biotechnol Biochem 2023; 87:898-906. [PMID: 37363872 DOI: 10.1093/bbb/zbad068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 05/26/2023] [Indexed: 06/28/2023]
Abstract
Epigallocatechin gallate (EGCG) and caffeine are inevitable to be ingested together in the process of drinking green tea. This study used Caenorhabditis elegans as an organism model to examine whether the binding of EGCG and caffeine could influence the fat-reduction effect. The results revealed that EGCG significantly reduced the Nile Red fluorescence intensity and the triglyceride/protein ratio of the C. elegans obesity model by 14.7% and 16.5%, respectively, while the effect of caffeine was not significant. Moreover, the degree of reduction in fluorescence intensity and triglyceride/protein ratio by EGCG + caffeine was comparable to that of EGCG. In the exploration of underlying mechanism, we found that EGCG and EGCG + caffeine treatments had no influence on food intake and energy expenditure of C. elegans. Their fat-reduction effects were dependent on the regulation of lipogenesis, as shown by the decreased expression of the sbp-1, fat-7, and daf-16 genes.
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Affiliation(s)
- Cheng Guo
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China
| | - Wangyang Shen
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China
| | - Weiping Jin
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China
| | - Xiwu Jia
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China
| | - Zhili Ji
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China
| | - Li Jinling
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
- Key Laboratory for Deep Processing of Major Grain and Oil (Wuhan Polytechnic University), Ministry of Education, Wuhan, China
- Hubei Key Laboratory for Processing and Transformation of Agricultural Products, Wuhan Polytechnic University, Wuhan, China
| | - Li Bin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, Wuhan, China
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Rathinam M, Tyagi S, Dokka N, Marimuthu SK, Kumar H, Sagar D, Dash PK, Shasany AK, Sreevathsa R. The plant specialized metabolite epicatechin- 3-gallate (EC3G) perturbs lipid metabolism and attenuates fat accumulation in pigeonpea pod borer, Helicoverpa armigera. Int J Biol Macromol 2023; 231:123325. [PMID: 36681223 DOI: 10.1016/j.ijbiomac.2023.123325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/04/2023] [Accepted: 01/15/2023] [Indexed: 01/19/2023]
Abstract
Control of pod borer Helicoverpa armigera, a notorious polyphagous pest requires paramount attention with focus on environment-friendly management approaches. Overproduction of catechins (epigallocatechin-EGC and epicatechin-3-gallate-EC3G) in the pod borer-resistant pigeonpea wild relative, Cajanus platycarpus during continued herbivory prodded us to assess their underlying molecular effect on H. armigera. Significant reduction in larval and pupal growth parameters was observed when reared on artificial diet incorporated with 100 ppm EC3G vis a vis 100 ppm EGC and EGC + EC3G. Comparative RNAseq analyses of larvae that fed on normal and EC3G-incorporated diet revealed 62 differentially expressed genes dominated by detoxification and lipid metabolism. While lipase and fatty acid-binding protein 2-like were up-regulated, delta9-FADS-like involved in fatty acid synthesis was downregulated, indicating effect of EC3G on fat metabolism. Validation of RNAseq data by qPCR; midgut glutathione-S-transferase and esterase assays depicted increased lipolysis and reduced lipogenesis in EC3G-fed larvae. Additionally, differential accumulation of stearic acid and oleic acid in EC3G-fed and control larvae/adults ascertained perturbation in lipogenesis. Supported by modelling, molecular docking and simulations, we demonstrate the possible involvement of the insect adipokinetic hormone receptor (AKHR) in the EC3G-mediated response. The study demonstrates plant specialized metabolite EC3G as a potential candidate for H. armigera control.
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Affiliation(s)
- Maniraj Rathinam
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India
| | - Shaily Tyagi
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India
| | - Narasimham Dokka
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India
| | - Sathish Kumar Marimuthu
- Department of Pharmaceutical Technology, University College of Engineering, Anna University-BIT Campus, Tiruchirappalli, Tamilnadu, India
| | - Hemant Kumar
- Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Doddachowdappa Sagar
- Division of Entomology, ICAR-Indian Agricultural Research Institute, New Delhi, India
| | - Prasanta K Dash
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India
| | - Ajit Kumar Shasany
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India
| | - Rohini Sreevathsa
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi, India.
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Wang Y, Xiang YF, Liu AL. Comparative and Combined Effects of Epigallocatechin-3-gallate and Caffeine in Reducing Lipid Accumulation in Caenorhabditis elegans. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2022; 77:279-285. [PMID: 35633414 DOI: 10.1007/s11130-022-00978-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
Epigallocatechin-3-gallate (EGCG) and caffeine, two phytochemicals found in a wide range of natural dietary sources, have been reported to have protective effects against hyperlipidemia, a major risk factor for cardiovascular disease. However, their relative efficacy and synergy in lowering lipid level are unclear. This study intended to compare lipid-lowering activity of EGCG and caffeine and to elucidate their joint action using Caenorhabditis elegans (C. elegans) as a model organism. The worms were exposed to EGCG, caffeine or both agents, and lipid accumulation determined by levels of total lipids, triglycerides and cholesterol was monitored. A 3 × 3 factorial design combined with response surface methodology was used to characterize the nature of interactive effects. Total lipids, triglycerides and cholesterol in C. elegans were reduced by either EGCG or caffeine in a dose-dependent manner, with EGCG displaying a stronger lipid-lowering efficacy than caffeine. Overall, the EGCG/caffeine combination for lowering lipids was more effective than either substance alone. Factorial regression models revealed that the combination was antagonistic for total lipid reduction, perhaps due to a "ceiling" effect, and was synergistic for triglyceride-lowering and additive for cholesterol-lowering. Taken together, our work proposes the use of a combination of EGCG and caffeine as an alternative dietary intervention for the prevention of hyperlipidemia, and additionally highlights the suitability of C. elegans model for evaluating lipid-lowering capacity of natural products.
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Affiliation(s)
- Yan Wang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yu-Fan Xiang
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Yancheng Center for Disease Control and Prevention, Yancheng, 224000, China
| | - Ai-Lin Liu
- Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Tian J, Geiss C, Zarse K, Madreiter-Sokolowski CT, Ristow M. Green tea catechins EGCG and ECG enhance the fitness and lifespan of Caenorhabditis elegans by complex I inhibition. Aging (Albany NY) 2021; 13:22629-22648. [PMID: 34607977 PMCID: PMC8544342 DOI: 10.18632/aging.203597] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/25/2021] [Indexed: 12/12/2022]
Abstract
Green tea catechins are associated with a delay in aging. We have designed the current study to investigate the impact and to unveil the target of the most abundant green tea catechins, epigallocatechin gallate (EGCG) and epicatechin gallate (ECG). Experiments were performed in Caenorhabditis elegans to analyze cellular metabolism, ROS homeostasis, stress resistance, physical exercise capacity, health- and lifespan, and the underlying signaling pathways. Besides, we examined the impact of EGCG and ECG in isolated murine mitochondria. A concentration of 2.5 μM EGCG and ECG enhanced health- and lifespan as well as stress resistance in C. elegans. Catechins hampered mitochondrial respiration in C. elegans after 6–12 h and the activity of complex I in isolated rodent mitochondria. The impaired mitochondrial respiration was accompanied by a transient drop in ATP production and a temporary increase in ROS levels in C. elegans. After 24 h, mitochondrial respiration and ATP levels got restored, and ROS levels even dropped below control conditions. The lifespan increases induced by EGCG and ECG were dependent on AAK-2/AMPK and SIR-2.1/SIRT1, as well as on PMK-1/p38 MAPK, SKN-1/NRF2, and DAF-16/FOXO. Long-term effects included significantly diminished fat content and enhanced SOD and CAT activities, required for the positive impact of catechins on lifespan. In summary, complex I inhibition by EGCG and ECG induced a transient drop in cellular ATP levels and a temporary ROS burst, resulting in SKN-1 and DAF-16 activation. Through adaptative responses, catechins reduced fat content, enhanced ROS defense, and improved healthspan in the long term.
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Affiliation(s)
- Jing Tian
- Department of Human Nutrition, Institute of Nutrition, Friedrich Schiller University Jena, Jena 07743, Germany.,MOE Key Laboratory of Environment Correlative Dietology, College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Caroline Geiss
- Department of Human Nutrition, Institute of Nutrition, Friedrich Schiller University Jena, Jena 07743, Germany
| | - Kim Zarse
- Department of Human Nutrition, Institute of Nutrition, Friedrich Schiller University Jena, Jena 07743, Germany.,Laboratory of Energy Metabolism, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach 8603, Switzerland
| | - Corina T Madreiter-Sokolowski
- Laboratory of Energy Metabolism, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach 8603, Switzerland.,Molecular Biology and Biochemistry, Gottfried Schatz Research Center, Medical University of Graz, Graz 8010, Austria
| | - Michael Ristow
- Department of Human Nutrition, Institute of Nutrition, Friedrich Schiller University Jena, Jena 07743, Germany.,Laboratory of Energy Metabolism, Institute of Translational Medicine, Department of Health Sciences and Technology, ETH Zurich, Schwerzenbach 8603, Switzerland
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Wu X, Al-Amin M, Zhao C, An F, Wang Y, Huang Q, Teng H, Song H. Catechinic acid, a natural polyphenol compound, extends the lifespan of Caenorhabditis elegans via mitophagy pathways. Food Funct 2021; 11:5621-5634. [PMID: 32530444 DOI: 10.1039/d0fo00694g] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Catechinic acid (CA), widely present in tea and fruits, has vital biological and pharmacological properties. CA plays an important role in the regulation of lifespan. However, the mechanism behind its anti-aging properties remains poorly characterized. In the present study, Caenorhabditis elegans (C. elegans) was used as a model organism. It was found that CA induced mitophagy which prevented the accumulation of dysfunctional mitochondria with age and profoundly extended lifespan. Notably, CA significantly improved the fitness of aging worms, particularly the treatment slowed age-related decline in observed spontaneous movements. Furthermore, CA was found to eliminate dysfunctional mitochondria in the gut and muscle cells, and demonstrated that the lifespan-prolonging effects of CA can be attributed to mitophagy along with the likely regulation of the genes bec-1 and pink-1. The results of this study indicated that pharmacologically induced mitophagy has a profound impact on aging, providing a novel therapeutic intervention against aging and age-related diseases.
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Affiliation(s)
- Xiaoqi Wu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. and Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Colorado 80309, USA
| | - Mohammad Al-Amin
- Department of Molecular, Cellular and Developmental Biology, University of Colorado, Boulder, Colorado 80309, USA
| | - Chao Zhao
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. and Engineering Research Centre of Fujian-Taiwan Special Marine Food Processing and Nutrition, Ministry of Education, Fuzhou 350002, China and Key Laboratory of Marine Biotechnology of Fujian Province, Institute of Oceanology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fengping An
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Yiwei Wang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Qun Huang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Hui Teng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
| | - Hongbo Song
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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Chatree S, Sitticharoon C, Maikaew P, Pongwattanapakin K, Keadkraichaiwat I, Churintaraphan M, Sripong C, Sririwichitchai R, Tapechum S. Epigallocatechin gallate decreases plasma triglyceride, blood pressure, and serum kisspeptin in obese human subjects. Exp Biol Med (Maywood) 2021; 246:163-176. [PMID: 33045853 PMCID: PMC7871112 DOI: 10.1177/1535370220962708] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 09/09/2020] [Indexed: 01/06/2023] Open
Abstract
Obesity is one of major risk factors increasing chronic diseases including type II diabetes, cardiovascular diseases, and hypertension. The effects of epigallocatechin gallate (EGCG), the major active compound in green tea, on reduced obesity and improved metabolic profiles are still controversial. Furthermore, the effects of EGCG on human adipocyte lipolysis and browning of white adipocytes have not been elucidated. This study aimed to investigate the effects of EGCG on obesity, lipolysis, and browning of human white adipocytes. The results showed that, when compared to the baseline values, EGCG significantly decreased fasting plasma triglyceride levels (P < 0.05), systolic blood pressure (P < 0.05), diastolic blood pressure (P < 0.05), and serum kisspeptin levels (P < 0.05) after 8 weeks of supplement. On the other hand, supplement of EGCG in obese human subjects for 4 or 8 weeks did not decrease body weight, body mass index, waist and hip circumferences, nor total body fat mass or percentage when compared to their baseline values. The study in human adipocytes showed that EGCG did not increase the glycerol release when compared to vehicle, suggesting that it had no lipolytic effect. Furthermore, treatment of EGCG did not enhance uncoupling protein 1 (UCP1) mRNA expression in human white adipocytes when compared with treatment of pioglitazone, the peroxisome proliferator-activated receptor γ (PPAR-γ) agonist, suggesting that EGCG did not augment the browning effect of PPAR-γ on white adipocytes. This study revealed that EGCG reduced 2 metabolic risk factors which are triglyceride and blood pressure in the human experiment. We also showed a novel evidence that EGCG decreased kisspeptin levels. However, EGCG had no effects on obesity reduction in humans, lipolysis, nor browning of human white adipocytes.
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Affiliation(s)
- Saimai Chatree
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Chantacha Sitticharoon
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Pailin Maikaew
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Kitchaya Pongwattanapakin
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Issarawan Keadkraichaiwat
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Malika Churintaraphan
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Chanakarn Sripong
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Rungnapa Sririwichitchai
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Sompol Tapechum
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
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Farias-Pereira R, Savarese J, Yue Y, Lee SH, Park Y. Fat-lowering effects of isorhamnetin are via NHR-49-dependent pathway in Caenorhabditis elegans. Curr Res Food Sci 2020; 2:70-76. [PMID: 32914113 PMCID: PMC7473354 DOI: 10.1016/j.crfs.2019.11.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Isorhamnetin (3-O-methylquercetin), a flavonol found in dill weed, sea buckthorn berries, kale and onions, has been suggested to have anti-obesity effects, but there is limited evidence of its mechanisms of action on lipid metabolism. The goal of this study was to investigate the effects of isorhamnetin on lipid metabolism using Caenorhabditis elegans as an animal model. Isorhamnetin reduced fat accumulation without affecting food intake or energy expenditure in C. elegans. The isorhamnetin's fat-lowering effects were dependent on nhr-49, a homolog of the human peroxisome proliferator-activated receptor alpha (PPARα). Isorhamnetin upregulated an enoyl-CoA hydratase (ech-1.1, involved in fatty acid β-oxidation) and adipose triglyceride lipase (atgl-1, involved in lipolysis) via NHR-49-dependent pathway at transcriptional levels. Isorhamnetin also upregulated the C. elegans AMP-activated protein kinase (AMPK) subunits homologs (aak-1 and aak-2), involved in energy homeostasis. These results suggest that isorhamnetin reduces body fat by increasing fat oxidation in part via NHR-49/PPARα-dependent pathway. Isorhamnetin reduced fat accumulation in Caenorhabditis elegans. Food intake and energy expenditure were not changed by isorhamnetin. Isorhamnetin's fat-lowering effects were dependent on nhr-49/PPARα. Isorhamnetin upregulated transcriptionally AAK/AMPK, which may activate NHR-49. Isorhamnetin increased fat breakdown by upregulating ech-1.1/HADHA and atgl-1/ATGL.
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Affiliation(s)
| | - Jessica Savarese
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003, USA
| | - Yiren Yue
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003, USA
| | - Seong-Ho Lee
- Department of Nutrition and Food Science, University of Maryland, College Park, MD, 20742, USA
| | - Yeonhwa Park
- Department of Food Science, University of Massachusetts, Amherst, MA, 01003, USA
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Farias-Pereira R, Park CS, Park Y. Kahweol Reduces Food Intake of Caenorhabditis elegans. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:9683-9689. [PMID: 32786849 DOI: 10.1021/acs.jafc.0c03030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The coffee diterpene kahweol may contribute to the anti-obesity effects of coffee but its physiological effects have yet to be elucidated. Caenorhabditis elegans is used as an animal model in obesity research because its lipid metabolism is conserved in humans. The goal was to investigate kahweol's effects on lipid metabolism in C. elegans. Kahweol at 120 μM reduced fat accumulation by 17% compared to the control, which was associated with a reduced food intake. Kahweol did not reduce fat in eat-2 mutants, which have a disrupted pharynx contraction rate, suggesting that the fat-lowering effects of kahweol were dependent on food intake. Lipid metabolism-related gene homologues of tubby protein (tub-1), enoyl-CoA hydratase (ech-1.1), adipose triglyceride lipase (atgl-1), insulin/insulin-like growth receptor (daf-2), and forkhead box O transcription factor (daf-16) were also associated with changes in food intake by kahweol. Therefore, kahweol's fat-lowering effects are due to a reduction of food intake in C. elegans.
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Affiliation(s)
- Renalison Farias-Pereira
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - Cheon-Seok Park
- Department of Food Science & Biotechnology, Kyung Hee University, Yongin 17104, Korea
| | - Yeonhwa Park
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003, United States
- Department of Food Science & Biotechnology, Kyung Hee University, Yongin 17104, Korea
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10
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Farias-Pereira R, Zhang Z, Park CS, Kim D, Kim KH, Park Y. Butein inhibits lipogenesis in Caenorhabditis elegans. Biofactors 2020; 46:777-787. [PMID: 32663368 DOI: 10.1002/biof.1667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/26/2020] [Accepted: 06/13/2020] [Indexed: 12/20/2022]
Abstract
Butein, a flavonoid found in annatto seeds and lacquer trees, may be used for many health benefits, including the prevention of obesity. However, its anti-obesity effects are not completely understood; in particular, the effects of butein on the regulation of lipid metabolism have not been explained. Thus, the goal of the current study was to determine the effects of butein on lipid metabolism in Caenorhabditis elegans, which is a multi-organ nematode used as an animal model in obesity research. Butein at 70 μM reduced triglyceride content by 27% compared to the control without altering food intake and energy expenditure. The reduced triglyceride content by butein was associated with the downregulation of sbp-1, fasn-1, and fat-7, the lipogenesis-related homologs of sterol regulatory element-binding proteins, fatty acid synthase and stearoyl-CoA desaturase, respectively. Furthermore, fat-7 and skn-1, a homolog of nuclear respiratory factors, were identified as genetic requirements for butein's effects on triglyceride content in C. elegans. The effects of butein on sbp-1 and fasn-1 were dependent on skn-1, but the downregulation of fat-7 was independent of skn-1. These results suggest that the inhibitory effects of butein on lipogenesis are via SKN-1- and FAT-7-dependent pathways in C. elegans.
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Affiliation(s)
| | - Zhenyu Zhang
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
| | - Cheon-Seok Park
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin, Republic of Korea
| | - Daeyoung Kim
- Department of Mathematics and Statistics, University of Massachusetts, Amherst, Massachusetts, USA
| | - Kee-Hong Kim
- Department of Food Science, Purdue University, West Lafayette, Indiana, USA
- Center for Cancer Research, Purdue University, West Lafayette, Indiana, USA
| | - Yeonhwa Park
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts, USA
- Department of Food Science and Biotechnology, Kyung Hee University, Yongin, Republic of Korea
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11
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Functional foods - dietary or herbal products on obesity: application of selected bioactive compounds to target lipid metabolism. Curr Opin Food Sci 2020. [DOI: 10.1016/j.cofs.2020.09.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Ding H, Li Y, Li W, Tao H, Liu L, Zhang C, Kong T, Feng S, Li J, Wang X, Wu J. Epigallocatechin-3-gallate activates the AMP-activated protein kinase signaling pathway to reduce lipid accumulation in canine hepatocytes. J Cell Physiol 2020; 236:405-416. [PMID: 32572960 DOI: 10.1002/jcp.29869] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 05/16/2020] [Accepted: 05/24/2020] [Indexed: 12/19/2022]
Abstract
Epigallocatechin-3-gallate (EGCG) plays a crucial role in hepatic lipid metabolism. However, the underlying regulatory mechanism of hepatic lipid metabolism by EGCG in canine is unclear. Primary canine hepatocytes were treated with EGCG (0.01, 0.1, or 1 μM) and BML-275 (an AMP-activated protein kinase [AMPK] inhibitor) to study the effects of EGCG on the gene and protein expressions associated with AMPK signaling pathway. Data showed that treatment with EGCG had greater activation of AMPK, as well as greater expression levels and transcriptional activity of peroxisome proliferator activated receptor-α (PPARα) along with upregulated messenger RNA (mRNA) abundance and protein abundance of PPARα-target genes. EGCG decreased the expression levels and transcriptional activity of sterol regulatory element-binding protein 1c (SREBP-1c) along with downregulated mRNA abundance and protein abundance of SREBP-1c target genes. Of particular interest, exogenous BML-275 could reduce or eliminate the effects of EGCG on lipid metabolism in canine hepatocytes. Furthermore, the content of triglyceride was significantly decreased in the EGCG-treated groups. These results suggest that EGCG might be a potential agent in preventing high-fat diet-induced lipid accumulation in small animals.
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Affiliation(s)
- Hongyan Ding
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Yu Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Wei Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Huanqing Tao
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Leihong Liu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Cai Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Tao Kong
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Shibin Feng
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Jinchun Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Xichun Wang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
| | - Jinjie Wu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
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Cafestol increases fat oxidation and energy expenditure in Caenorhabditis elegans via DAF-12-dependent pathway. Food Chem 2020; 307:125537. [DOI: 10.1016/j.foodchem.2019.125537] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 08/08/2019] [Accepted: 09/14/2019] [Indexed: 12/18/2022]
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Lin C, Xiao J, Xi Y, Zhang X, Zhong Q, Zheng H, Cao Y, Chen Y. Rosmarinic acid improved antioxidant properties and healthspan via the IIS and MAPK pathways in Caenorhabditis elegans. Biofactors 2019; 45:774-787. [PMID: 31206890 DOI: 10.1002/biof.1536] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/29/2019] [Indexed: 12/26/2022]
Abstract
Rosmarinic acid (RA) has a wide range of biological effects, including the antioxidation and antiaging. However, the detailed mechanisms remain unclear but highly attractive. Herein, RA promoted lifespan and motoricity in a dose-dependent manner, and reduced fat store without threatening fertility in Caenorhabditis elegans. In term of antioxidant efficacy, catalase activity, glutathione peroxidas activity, reduced glutathione content, and reduced glutathione/oxidized glutathione ratio were enhanced. And malondialdehyde content was diminished significantly. Moreover, RA increased survival under acute oxidative and thermal stress, and suppressed intestinal lipofuscin accumulation. So the improvement of lifespan mediated by RA could be related with its strong antioxidant properties. Furthermore, RA was absorbed by worms. Further research in pursuit of the mechanism showed that longevity induced by RA was involved with the genes sod-3, sod-5, ctl-1, daf-16, ins-18, skn-1, and sek-1, but was independent of subcellular localization of DAF-16. These findings indicated that RA had a potential for promoting healthy lifespan.
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Affiliation(s)
- Chunxiu Lin
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Jie Xiao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yun Xi
- Department of Laboratory Medicine, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoying Zhang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Qiqi Zhong
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Huijuan Zheng
- Department of Food Science, Rutgers University, New Brunswick, New Jersey
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Yunjiao Chen
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong, China
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Mechanisms of action of coffee bioactive components on lipid metabolism. Food Sci Biotechnol 2019; 28:1287-1296. [PMID: 31695927 DOI: 10.1007/s10068-019-00662-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/17/2019] [Accepted: 08/02/2019] [Indexed: 12/13/2022] Open
Abstract
Coffee consumption is associated with reduced risk of metabolic syndrome, obesity and diabetes, which may be related to the effects of coffee and its bioactive components on lipid metabolism. Coffee contains caffeine, a known neuromodulator that acts as an adenosine receptor antagonist, as well as other components, such as chlorogenic acids, trigonelline, cafestol and kahweol. Thus, this review discusses the up-to-date knowledge of mechanisms of action of coffee and its bioactive compounds on lipid metabolism. Although there is evidence that coffee and/or its bioactive compounds regulate transcription factors (e.g. peroxisome proliferator-activated receptors and sterol regulatory element binding proteins) and enzymes (e.g. AMP-activated protein kinase) involved in lipogenesis, lipid uptake, transport, fatty acid β-oxidation and/or lipolysis, needs for the understanding of coffee and its effects on lipid metabolism in humans remain to be answered.
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