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Gurley BJ. Clinically Relevant Herb-Drug Interactions: A 30-Year Historical Assessment. J Diet Suppl 2024:1-27. [PMID: 38504455 DOI: 10.1080/19390211.2024.2327544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
The Dietary Supplement Health and Education Act, a legislative measure ushering in a novel class of complementary healthcare products known as dietary supplements, will mark its 30th anniversary in October 2024. Over this 30-year period, dietary supplement usage evolved from a few hundred products made up mostly of vitamins, minerals, and select botanical extracts to more than 75,000 single- and multi-ingredient products that are now regular staples in the American healthcare system and used by half of all U.S. consumers. One of the fastest-growing segments of the dietary supplement market during this 3-decade interval has been those products formulated with botanical extracts. Coincident with the growing popularity of botanical dietary supplements (BDS) has been their concomitant ingestion with conventional prescription medications. BDS are complex mixtures of phytochemicals oftentimes exhibiting complex pharmacology. Formulated as concentrated phytochemical extracts, BDS are vehicles for a host of plant secondary metabolites rarely encountered in the typical diet. When taken with prescription drugs, BDS may give rise to clinically significant herb-drug interactions (HDI). Pharmacodynamic HDI describe interactions between phytochemicals and conventional medications at the drug receptor level, while pharmacokinetic HDI stem from phytochemical-mediated induction and/or inhibition of human drug metabolizing enzymes and/or transporters. This review summarizes BDS identified over the last 30 years that pose clinically relevant HDI and whose mechanisms are either pharmacodynamically or pharmacokinetically mediated.
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Affiliation(s)
- Bill J Gurley
- National Center for Natural Products Research, School of Pharmacy, University of MS, University, MS, USA
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2
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Almoraie NM, Shatwan IM. The Potential Effects of Dietary Antioxidants in Obesity: A Comprehensive Review of the Literature. Healthcare (Basel) 2024; 12:416. [PMID: 38391792 PMCID: PMC10887832 DOI: 10.3390/healthcare12040416] [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: 12/19/2023] [Revised: 01/19/2024] [Accepted: 02/03/2024] [Indexed: 02/24/2024] Open
Abstract
Obesity has become a global health concern, with its prevalence steadily increasing in recent decades. It is associated with numerous health complications, including cardiovascular diseases, diabetes, and certain types of cancer. The aetiology of obesity is multifactorial, involving genetic, environmental, and lifestyle factors. In recent years, oxidative stress has emerged as a potential contributor to obesity and its related metabolic disorders. Dietary antioxidants, which can counteract oxidative stress, have gained significant attention for their potential role in preventing and managing obesity. This comprehensive review aims to explore the impact of dietary antioxidants on obesity and its associated metabolic dysregulations, discussing the underlying mechanisms and highlighting the potential therapeutic implications.
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Affiliation(s)
- Noha M Almoraie
- Food and Nutrition Department, Faculty of Human Sciences and Design, King Abdulaziz University, Building 43, Room 233, Level 2, Jeddah 3270, Saudi Arabia
| | - Israa M Shatwan
- Food and Nutrition Department, Faculty of Human Sciences and Design, King Abdulaziz University, Building 43, Room 233, Level 2, Jeddah 3270, Saudi Arabia
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3
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Nederveen JP, Mastrolonardo AJ, Xhuti D, Di Carlo A, Manta K, Fuda MR, Tarnopolsky MA. Novel Multi-Ingredient Supplement Facilitates Weight Loss and Improves Body Composition in Overweight and Obese Individuals: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial. Nutrients 2023; 15:3693. [PMID: 37686725 PMCID: PMC10490028 DOI: 10.3390/nu15173693] [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: 06/01/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Despite the growing recognition of the obesity crisis, its rates continue to rise. The current first-line therapies, such as dietary changes, energy restriction, and physical activity, are typically met with poor adherence. Novel nutritional interventions can address the root causes of obesity, including mitochondrial dysfunction, and facilitate weight loss. OBJECTIVE The objective of this study was to investigate the effects of a multi-ingredient nutritional supplement designed to facilitate mitochondrial function and metabolic health outcomes over a 12 wk period. METHODS Fifty-five overweight and/or obese participants (age (mean ± SEM): 26 ± 1; body mass index (BMI) (kg/m2): 30.5 ± 0.6) completed this double-blind, placebo-controlled clinical trial. Participants were randomized to 12 wks of daily consumption of multi-ingredient supplement (MIS; n = 28; containing 50 mg forskolin, 500 mg green coffee bean extract, 500 mg green tea extract, 500 mg beet root extract, 400 mg α-lipoic acid, 200 IU vitamin E, and 200 mg CoQ10) or control placebo (PLA, n = 27; containing microcrystalline cellulose) matched in appearance. The co-primary outcomes were bodyweight and fat mass (kg) changes. The secondary outcomes included other body composition measures, plasma markers of obesity, fatty liver disease biomarkers, resting energy metabolism, blood pressure, physical performance, and quality of life. The post-intervention differences between MIS and PLA were examined via ANCOVA which was adjusted for the respective pre-intervention variables. RESULTS After adjustment for pre-intervention data, there was a significant difference in weight (p < 0.001) and fat mass (p < 0.001) post-intervention between the PLA and MIS treatment arms. Post-intervention weight and fat mass were significantly lower in MIS. Significant post-intervention differences corrected for baseline were found in markers of clinical biochemistry (AST, p = 0.017; ALT, p = 0.008), molecular metabolism (GDF15, p = 0.028), and extracellular vesicle-associated miRNA species miR-122 and miR-34a in MIS (p < 0.05). CONCLUSIONS Following the 12 wks of MIS supplementation, weight and body composition significantly improved, concomitant with improvements in molecular markers of liver health and metabolism.
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Affiliation(s)
- Joshua P. Nederveen
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada; (J.P.N.)
| | - Alexander J. Mastrolonardo
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada; (J.P.N.)
| | - Donald Xhuti
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada; (J.P.N.)
| | - Alessia Di Carlo
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada; (J.P.N.)
| | - Katherine Manta
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada; (J.P.N.)
| | - Matthew R. Fuda
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada; (J.P.N.)
| | - Mark A. Tarnopolsky
- Department of Pediatrics, Faculty of Health Sciences, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada; (J.P.N.)
- Exerkine Corporation, McMaster University Medical Center (MUMC), Hamilton, ON L8N 3Z5, Canada
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4
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Shaik Mohamed Sayed UF, Moshawih S, Goh HP, Kifli N, Gupta G, Singh SK, Chellappan DK, Dua K, Hermansyah A, Ser HL, Ming LC, Goh BH. Natural products as novel anti-obesity agents: insights into mechanisms of action and potential for therapeutic management. Front Pharmacol 2023; 14:1182937. [PMID: 37408757 PMCID: PMC10318930 DOI: 10.3389/fphar.2023.1182937] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/06/2023] [Indexed: 07/07/2023] Open
Abstract
Obesity affects more than 10% of the adult population globally. Despite the introduction of diverse medications aimed at combating fat accumulation and obesity, a significant number of these pharmaceutical interventions are linked to substantial occurrences of severe adverse events, occasionally leading to their withdrawal from the market. Natural products serve as attractive sources for anti-obesity agents as many of them can alter the host metabolic processes and maintain glucose homeostasis via metabolic and thermogenic stimulation, appetite regulation, pancreatic lipase and amylase inhibition, insulin sensitivity enhancing, adipogenesis inhibition and adipocyte apoptosis induction. In this review, we shed light on the biological processes that control energy balance and thermogenesis as well as metabolic pathways in white adipose tissue browning, we also highlight the anti-obesity potential of natural products with their mechanism of action. Based on previous findings, the crucial proteins and molecular pathways involved in adipose tissue browning and lipolysis induction are uncoupling protein-1, PR domain containing 16, and peroxisome proliferator-activated receptor-γ in addition to Sirtuin-1 and AMP-activated protein kinase pathway. Given that some phytochemicals can also lower proinflammatory substances like TNF-α, IL-6, and IL-1 secreted from adipose tissue and change the production of adipokines like leptin and adiponectin, which are important regulators of body weight, natural products represent a treasure trove for anti-obesity agents. In conclusion, conducting comprehensive research on natural products holds the potential to accelerate the development of an improved obesity management strategy characterized by heightened efficacy and reduced incidence of side effects.
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Affiliation(s)
| | - Said Moshawih
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Hui Poh Goh
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Nurolaini Kifli
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
| | - Gaurav Gupta
- School of Pharmacy, Suresh Gyan Vihar University, Jaipur, India
- Department of Pharmacology, Saveetha Institute of Medical and Technical Sciences, Saveetha Dental College and Hospitals, Saveetha University, Chennai, India
| | - Sachin Kumar Singh
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, India
| | - Dinesh Kumar Chellappan
- Department of Life Sciences, School of Pharmacy, International Medical University, Kuala Lumpur, Malaysia
| | - Kamal Dua
- Faculty of Health, Australian Research Centre in Complementary and Integrative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, NSW, Australia
- Uttaranchal Institute of Pharmaceutical Sciences, Uttaranchal University, Dehradun, India
| | - Andi Hermansyah
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas AirlanggaSurabaya, Indonesia
| | - Hooi Leng Ser
- School of Medical and Life Sciences, Sunway University, Sunway, Malaysia
| | - Long Chiau Ming
- PAPRSB Institute of Health Sciences, Universiti Brunei Darussalam, Gadong, Brunei
- Department of Pharmacy Practice, Faculty of Pharmacy, Universitas AirlanggaSurabaya, Indonesia
- School of Medical and Life Sciences, Sunway University, Sunway, Malaysia
| | - Bey Hing Goh
- Biofunctional Molecule Exploratory Research Group, School of Pharmacy, Monash University Malaysia, Bandar Sunway, Malaysia
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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5
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Testing the Feasibility and Dietary Impact of Macaroni Fortified with Green Tea and Turmeric Curcumin Extract in Diabetic Rats. Foods 2023; 12:foods12030534. [PMID: 36766064 PMCID: PMC9914615 DOI: 10.3390/foods12030534] [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: 12/03/2022] [Revised: 01/14/2023] [Accepted: 01/16/2023] [Indexed: 01/27/2023] Open
Abstract
Macaroni is a commercially available Italian food product that is popular among consumers around the world. The supplementation of green tea extract (GTE) and turmeric curcumin extract (TCE) in macaroni may serve as promising and beneficial bioactive ingredients. We aimed to produce functional macaroni, assess the degree of consumer satisfaction and study the antidiabetic activity in diabetic rats. In this study, macaroni was fortified with GTE, TCE and a mixture of GTE and TCE ratio of 1:1, w/w (GTE/TCE). The resulting products were then analyzed in terms of their chemical compositions, while the degree of consumer satisfaction was monitored and the hypoglycemic and hypolipidemic effects in streptozotocin (STZ)-rats were investigated. GTE/TCE-M exhibited the strongest antioxidant activity (p < 0.05), while phenolics were most abundant in GTE-M. The overall preference for GTE-M, TCE-M and GTE/TCE-M were within ranges of 4.7-5.1, 5.9-6.7 and 6.2-8.2, respectively, in the nine-point hedonic scale. Consumption of these three preparations of macaroni (30 and 300 mg/kg each) neither decreased nor exacerbated increasing blood glucose levels in diabetic rats, while GTE-M (30 mg/kg) tended to lower increased serum triglyceride and cholesterol levels. In conclusion, GTE/TCE-M containing high amounts of bioactive EGCG and curcumin exerted the strongest degree of antioxidant activity and received the highest level of acceptance. Importantly, consumption of GTE-M tentatively ameliorated serum lipid abnormalities in diabetic STZ-induced rats by inhibiting lipase digestion and lipid absorption. Herein, we are proposing that GTE-fortified macaroni is a functional food that can mitigate certain metabolic syndromes.
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6
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Yamazaki T. Calculating Diet-Induced Thermogenesis in Mice. Methods Mol Biol 2023; 2662:125-133. [PMID: 37076676 DOI: 10.1007/978-1-0716-3167-6_11] [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: 04/21/2023]
Abstract
Diet-induced thermogenesis (DIT) is the increase in energy expenditure (EE) associated with food intake. Increasing DIT may lead to weight loss, so it is expected that increasing DIT will decrease body mass index and body fat mass. DIT in humans has been measured in various ways, but there is no way to calculate absolute DIT values in mice. Therefore, we developed a method to measure DIT in mice by applying a method more commonly used in humans. First, we measure the energy metabolism of mice under fasting conditions. EE is then plotted against the square root of activity, and a linear regression equation is fitted to the data. Next, we measure the energy metabolism of mice fed ad libitum and plotted EE in the same way. DIT is calculated by subtracting the predicted EE value from the EE value of mice fed at the same activity count. This method not only allows observation of the time course of the absolute value of DIT but also allows calculation of the ratio of DIT to caloric intake and the ratio of DIT to EE.
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Affiliation(s)
- Tomomi Yamazaki
- Department of Nutrition and Metabolism, National Institute of Health and Nutrition, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo, Japan.
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7
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Prevention and Treatment of Obesity-Related Inflammatory Diseases by Edible and Medicinal Plants and Their Active Compounds. IMMUNO 2022. [DOI: 10.3390/immuno2040038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Obesity, defined by excessive fat mass and its associated low-grade chronic inflammation, leads to insulin resistance, diabetes, and metabolic dysfunctions. The immunomodulatory properties of natural agents have gained much interest in recent decades. Some of the plant-derived agents are known to be immunomodulators that can affect both innate and adaptive immunity, e.g., thymoquinone, curcumin, punicalagin, resveratrol, quercetin, and genistein. Natural immunomodulators may contribute to the treatment of a number of inflammatory diseases, as they have significant efficacy and safety profiles. The immunomodulatory effects of traditional Greco-Arab and Islamic diets and medicinal plants are well acknowledged in abundant in vitro studies as well as in animal studies and clinical trials. This review highlights the role of Greco-Arab and Islamic diets and medicinal plants in the management of inflammation associated with obesity. Although previously published review articles address the effects of medicinal plants and phytochemicals on obesity-related inflammation, there is no systematic review that emphasizes clinical trials of the clinical significance of these plants and phytochemicals. Given this limitation, the objective of this comprehensive review is to critically evaluate the potential of the most used herbs in the management of obesity-related inflammation based on clinical trials.
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8
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Wang P, Ma XM, Geng K, Jiang ZZ, Yan PY, Xu Y. Effects of Camellia tea and herbal tea on cardiometabolic risk in patients with type 2 diabetes mellitus: A systematic review and meta-analysis of randomized controlled trials. Phytother Res 2022; 36:4051-4062. [PMID: 36197117 DOI: 10.1002/ptr.7572] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 11/07/2022]
Abstract
Evidence for the anti-diabetic actions of camellia and herbal tea in diabetic patients has not been summarized. Several data sources were searched for randomized trials assessing the effect of different teas on cardiometabolic risk factors in T2D subjects. Two independent reviewers extracted relevant data and assessed the risk of bias. Results were summarized using mean differences (MDs) based on a random model. Sixteen studies (19 trials, N = 832) fulfilled the eligibility criteria. Mean differences were measured for body weight, body mass index, fasting blood glucose, glycosylated hemoglobin, a homeostatic model for insulin resistance, high and low-density lipoproteins, triglycerides, and systolic and diastolic blood pressure. No effects on total cholesterol and waist circumference were observed when either camellia or herbal tea was consumed. Tea produced moderate regulatory effects on adipose, glycemic control, lipid profiles, and blood pressure. In terms of efficacy, camellia and herbal teas yield different benefits in regulating metabolism. This discovery has some implications for clinical research and drug development. However, more high-quality trials are needed to improve the certainty of our estimates.
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Affiliation(s)
- Peng Wang
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China
| | - Xiu Mei Ma
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Sichuan Clinical Research Center for Nephropathy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Kang Geng
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Sichuan Clinical Research Center for Nephropathy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Department of Plastic and Burn Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Zong Zhe Jiang
- Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Sichuan Clinical Research Center for Nephropathy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
| | - Pei Yu Yan
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China
| | - Yong Xu
- Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,State Key Laboratory of Quality Research in Chinese Medicines, Faculty of Chinese Medicine, Macau University of Science and Technology, Macau, People's Republic of China.,Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China.,Sichuan Clinical Research Center for Nephropathy, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, People's Republic of China
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9
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Li R, Zhu Q, Wang X, Wang H. Mulberry leaf polyphenols alleviated high-fat diet-induced obesity in mice. Front Nutr 2022; 9:979058. [PMID: 36185673 PMCID: PMC9521161 DOI: 10.3389/fnut.2022.979058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 08/25/2022] [Indexed: 11/13/2022] Open
Abstract
Mulberry leaf is an important medicinal food plant, which is rich in polyphenol compounds. Mulberry leaf polyphenols (MLP) possess significant lipid-lowering and antioxidant effects, and healthcare functions. In this study, the polyphenol content of mulberry leaf ethanol extract was measured using HPLC. The analysis of mulberry leaf extract resulted in the identification of 14 compounds, of which Chlorogenic acid and Quercitrin were the highest. A high-fat diet (HFD)-induced obese mouse model was developed and treated with MLP for 12 weeks to explore their effect on lipid metabolism in HFD-induced obese mice. The results showed that the MLP could inhibit the weight gain and fat cell volume increase in the HFD-induced obese mice in a dose-dependent manner. Further analysis revealed that the MLP decelerated the fatty acid composition in the adipose tissues of HFD-induced obese mice, and significantly increased the polyunsaturated-to-saturated fatty acid (PUFA/SFA) ratio. The real-time quantitative PCR (RT-qPCR) results indicated that the MLP significantly inhibited the down regulation of uncoupling protein (UCP) 1 (UCP1), UCP3, and PR domain zinc finger protein 16 (PRDM16) caused by the HFD. These beneficial effects of MLP on HFD-induced obese mice might be attributed to their ability to change the fatty acid composition of adipose tissue and increase the expression of thermogenesis genes. Overall, the study results suggested that the MLP could serve as potential lipid-lowering and weight-loss functional food and healthcare products.
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Affiliation(s)
- Rui Li
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - Qubo Zhu
- Southwest University, Chongqing, China
- National Center of Technology Innovation for Pigs, Chongqing, China
| | - Xiaoyan Wang
- Chongqing Academy of Animal Sciences, Chongqing, China
| | - Haiyan Wang
- Chongqing Academy of Animal Sciences, Chongqing, China
- *Correspondence: Haiyan Wang,
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10
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Xu W, Huang Y, Tao S, Zhou W, Peng Y, Dong W, Kan X, Chen G, Zeng X, Liu Z. Effects of long-term administration of theasinensin A on healthy C57BL/6J mice: Enhancing the function of epididymal white adipose tissue and regulating the colonic microenvironment. Food Chem 2022; 403:134477. [DOI: 10.1016/j.foodchem.2022.134477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/10/2022] [Accepted: 09/28/2022] [Indexed: 10/14/2022]
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11
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Chen CP, Su TC, Yang MJ, Chen WT, Siao AC, Huang LR, Lin YY, Kuo YC, Chung JF, Cheng CF, Ku HC, Kao YH. Green tea epigallocatechin gallate suppresses 3T3-L1 cell growth via microRNA-143/MAPK7 pathways. Exp Biol Med (Maywood) 2022; 247:1670-1679. [PMID: 35894140 PMCID: PMC9597208 DOI: 10.1177/15353702221108925] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Green tea epigallocatechin gallate (EGCG) and microRNA (miRNA) molecules modulate obesity. Nevertheless, it is still unknown whether EGCG modulates fat cell growth via miRNA-related signaling. In this study, white preadipocytes were used to examine whether the antimitogenic effect of EGCG on fat cells is regulated by the miR-143/MAPK7 pathway. We showed that EGCG upregulated the levels of miR-143, but not miR-155, in 3T3-L1 preadipocytes. Moreover, EGCG downregulated MAPK7 mRNA and protein levels time- and dose-dependently. MAPK7 expression increased during 3T3-L1 cell proliferation. miR-143 overexpression in the absence of EGCG mimicked the effects of EGCG to suppress preadipocyte growth and MAPK7 expression, whereas knockdown of miR-143 antagonized the EGCG-altered levels of miR-143, MAPK7, and pERK1/2 and reversed the EGCG-inhibited cell growth. These findings suggest that EGCG inhibits 3T3-L1 cell growth via miR-143/MAPK7 pathway.
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Affiliation(s)
- Chia-Pei Chen
- Department of Life Sciences, National
Central University, Taoyuan 320
| | - Tsung-Chen Su
- Tea Research and Extension Station,
Council of Agriculture, Taoyuan 326
| | - Meei-Ju Yang
- Tea Research and Extension Station,
Council of Agriculture, Taoyuan 326
| | - Wen-Ting Chen
- Department of Life Sciences, National
Central University, Taoyuan 320
| | - An-Ci Siao
- Department of Life Sciences, National
Central University, Taoyuan 320
| | - Ling-Ru Huang
- Department of Life Sciences, National
Central University, Taoyuan 320
| | - Yen-Yue Lin
- Department of Life Sciences, National
Central University, Taoyuan 320,Department of Emergency Medicine,
Taoyuan Armed Forces General Hospital, Taoyuan 325,Department of Emergency Medicine,
Tri-Service General Hospital, National Defense Medical Center, Taipei 114
| | - Yow-Chii Kuo
- Department of Gastroenterology,
Landseed Hospital, Taoyuan 324
| | - Jia-Fang Chung
- Department of Pediatrics, Taipei Tzu
Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142
| | - Ching-Feng Cheng
- Department of Pediatrics, Taipei Tzu
Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142,Institute of Biomedical Sciences,
Academia Sinica, Taipei 11529,Department of Pediatrics, Tzu Chi
University, Hualien 97004
| | - Hui-Chen Ku
- Department of Pediatrics, Taipei Tzu
Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142
| | - Yung-Hsi Kao
- Department of Life Sciences, National
Central University, Taoyuan 320,Yung-Hsi Kao.
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12
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Exploring the Quality and Application Potential of the Remaining Tea Stems after the Postharvest Tea Leaves: The Example of Lu'an Guapian Tea ( Camellia sinensis L.). Foods 2022; 11:foods11152357. [PMID: 35954125 PMCID: PMC9368606 DOI: 10.3390/foods11152357] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/25/2022] [Accepted: 08/01/2022] [Indexed: 12/02/2022] Open
Abstract
Lu’an Guapian tea is produced through the processing of only leaves, with the stems and buds discarded, but stems constitute a large proportion of the tea harvest. To test the usability of tea stems, we compared the physicochemical properties of tea leaves and stems from the same growth period as well as the taste of their infusions. The leaves contained higher concentrations of polyphenols and caffeine and had a stronger taste. The tea stems contained higher concentrations of free amino acids and soluble sugars and were richer in umami and sweet flavors. In addition, more tender tea stems had higher concentrations of polyphenols, caffeine, and free amino acids, and their infusions had more refreshing and sweeter tastes. Furthermore, crude fiber content increased as stem tenderness decreased. In summary, tea stems are rich in phytochemical components and flavor, and these properties increased with tenderness. This provides a theoretical basis for the high-value utilization of tea stems.
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13
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Tan Z, Halter B, Liu D, Gilbert ER, Cline MA. Dietary Flavonoids as Modulators of Lipid Metabolism in Poultry. Front Physiol 2022; 13:863860. [PMID: 35547590 PMCID: PMC9081441 DOI: 10.3389/fphys.2022.863860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/07/2022] [Indexed: 01/04/2023] Open
Abstract
Flavonoids, naturally-occurring compounds with multiple phenolic structures, are the most widely distributed phytochemicals in the plant kingdom, and are mainly found in vegetables, fruits, grains, roots, herbs, and tea and red wine products. Flavonoids have health-promoting effects and are indispensable compounds in nutritional and pharmaceutical (i.e., nutraceutical) applications. Among the demonstrated bioactive effects of flavonoids are anti-oxidant, anti-inflammatory, and anti-microbial in a range of research models. Through dietary formulation strategies, numerous flavonoids provide the ability to support bird health while improving the nutritional quality of poultry meat and eggs by changing the profile of fatty acids and reducing cholesterol content. A number of such compounds have been shown to inhibit adipogenesis, and promote lipolysis and apoptosis in adipose tissue cells, and thereby have the potential to affect fat accretion in poultry at various ages and stages of production. Antioxidant and anti-inflammatory properties contribute to animal health by preventing free radical damage in tissues and ameliorating inflammation in adipose tissue, which are concerns in broiler breeders and laying hens. In this review, we summarize the progress in understanding the effects of dietary flavonoids on lipid metabolism and fat deposition in poultry, and discuss the associated physiological mechanisms.
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Affiliation(s)
- Zhendong Tan
- Department of Animal and Poultry Sciences, Blacksburg, VA, United States
| | - Bailey Halter
- Department of Animal and Poultry Sciences, Blacksburg, VA, United States
| | - Dongmin Liu
- Department of Human Nutrition, Foods, and Exercise, Blacksburg, VA, United States
| | | | - Mark A Cline
- Department of Animal and Poultry Sciences, Blacksburg, VA, United States
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14
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Ormsby SM. Hot and Cold Theory: Evidence in Nutrition. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2022; 1343:87-107. [PMID: 35015278 DOI: 10.1007/978-3-030-80983-6_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Ancient scholars across cultures have postulated that by being less potent versions of herbs, food plays a substantive role in the maintenance of health and treatment of disease. A commonality among these traditional medical systems is in relation to the 'heating' and 'cooling' properties of foods. In this chapter, 'hot' and 'cold' classifications of foods are explored, along with ways to optimize health and combat disease. Scientific evaluations of 'hot' and 'cold' properties are also reviewed in relation to chemical compositions and physiological impacts. A broad scoping Google Scholar search was conducted to identify relevant articles. Scientific evaluations were heterogeneous and of mixed quality. Nonetheless some evidence supported the traditional 'hot' and 'cold' classifications. Overall, 'heating' foods were associated with metabolism and sympathetic nervous system enhancement via increased proportions of caffeine, carbohydrate, protein, fat, and calories; as well as greater oxidation potential; vasodilatory and pro-inflammatory effects; and higher acidity and aromatic compound content. 'Cooling' foods were contrastly found to be higher in water, fiber, alkalinity, and aliphatic compounds; as well as associated with anti-inflammatory, and detoxification (elimination) processes. With the potential to specifically tailor diets to suit individual needs, further high-quality research to substantiate traditional food classifications is warranted.
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Affiliation(s)
- Simone Maree Ormsby
- NICM Health Research Institute, Western Sydney University, Locked Bag 1797, Penrith, NSW, 2751, Australia.
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15
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Montis A, Souard F, Delporte C, Stoffelen P, Stévigny C, Van Antwerpen P. Coffee Leaves: An Upcoming Novel Food? PLANTA MEDICA 2021; 87:949-963. [PMID: 34560791 DOI: 10.1055/a-1533-0021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Unlike those of coffee beans, the healthy properties of coffee leaves have been overlooked for a long time, even if they are consumed as a beverage by local communities of several African countries. Due to the presence of xanthines, diterpenes, xanthones, and several other polyphenol derivatives as main secondary metabolites, coffee leaves might be useful to prevent many daily disorders. At the same time, as for all bioactive molecules, careless use of coffee leaf infusions may be unsafe due to their adverse effects, such as the excessive stimulant effects on the central nervous system or their interactions with other concomitantly administered drugs. Moreover, the presence of some toxic diterpene derivatives requires careful analytical controls on manufactured products made with coffee leaves. Accordingly, knowledge about the properties of coffee leaves needs to be increased to know if they might be considered a good source for producing new supplements. The purpose of the present review is to highlight the biosynthesis, metabolism, and distribution of the 4 main classes of secondary metabolites present in coffee leaves, their main pharmacological and toxicological aspects, and their main roles in planta. Differences in coffee leaf chemical composition depending on the coffee species will also be carefully considered.
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Affiliation(s)
- Andrea Montis
- RD3 Department-Unit of Pharmacognosy, Bioanalysis and Drug Discovery, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
- APFP Analytical platform of the faculty of pharmacy, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
| | - Florence Souard
- Département de Pharmacochimie Moléculaire, UMR 5063 CNRS, Université Grenoble Alpes, Saint-Martin d'Hères, France
- DPP Department - Unit of Pharmacology, Pharmacotherapy and Pharmaceutical care, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
| | - Cédric Delporte
- RD3 Department-Unit of Pharmacognosy, Bioanalysis and Drug Discovery, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
- APFP Analytical platform of the faculty of pharmacy, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
| | - Piet Stoffelen
- Meise Botanic Garden, Domein van Bouchout, Meise, Belgium
| | - Caroline Stévigny
- RD3 Department-Unit of Pharmacognosy, Bioanalysis and Drug Discovery, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
| | - Pierre Van Antwerpen
- RD3 Department-Unit of Pharmacognosy, Bioanalysis and Drug Discovery, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
- APFP Analytical platform of the faculty of pharmacy, Faculty of Pharmacy, Université libre de Bruxelles, Brussels, Belgium
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16
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Landini L, Rebelos E, Honka MJ. Green Tea from the Far East to the Drug Store: Focus on the Beneficial Cardiovascular Effects. Curr Pharm Des 2021; 27:1931-1940. [PMID: 33138757 DOI: 10.2174/1381612826666201102104902] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 10/12/2020] [Indexed: 11/22/2022]
Abstract
Cardiovascular diseases (CVD) are the leading cause of death worldwide. Evidence from observational and randomized controlled studies showing the potential benefits of green tea on lowering CVD risk has been emerging rapidly during the past few decades. These benefits include reduced risk for major cardiovascular events, lowering of blood pressure, decreased LDL cholesterol levels and weight loss. At the same time, the understanding of the physiological mechanisms behind these alterations is advancing. Consumption of green tea originated from China thousands of years ago, but since then, it expanded all over the world. Recent advances in understanding the role of tea polyphenols, mainly catechins, as mediators of tea's health benefits, have caused the emergence of various types of green tea extracts (GTE) on the market. While taking green tea is generally considered safe, there are concerns about the safety of using tea extracts. The present article reviews the current evidence of green tea consumption leading to reduced CVD risk, its potential biological mechanisms and the safety of using GTE.
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Affiliation(s)
- Linda Landini
- S.S.D. Dietetics and Clinical Nutrition ASL 4 Chiavarese Liguria - Sestri Levante Hospital, Sestri Levante GEI, Italy
| | - Eleni Rebelos
- Turku PET Centre, University of Turku, Turku, Finland
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17
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Zhou J, Lin H, Xu P, Yao L, Xie Q, Mao L, Wang Y. Matcha green tea prevents obesity-induced hypothalamic inflammation via suppressing the JAK2/STAT3 signaling pathway. Food Funct 2021; 11:8987-8995. [PMID: 33001081 DOI: 10.1039/d0fo01500h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Obesity is an increasingly severe global health problem, leading to chronic inflammation and metabolic disorders in both peripheral tissues and the central nervous system. Matcha is a powdered green tea, and it is very popular in recent years as a beverage and food additive. Matcha green tea has been reported to have outstanding potential in regulating obesity-related metabolic syndrome. However, there are few studies on the regulation mechanism of matcha green tea on the central nervous system. In this study, we established a high-fat diet-induced obese mouse model. The results showed that dietary supplementation with matcha could effectively inhibit the weight gain, fat accumulation, glycemia and lipidemia increase, and excessive activation of microglia in the arcuate nucleus of the hypothalamus. Furthermore, we used different concentrations (100%, 80%, 60%, 40%, and 20%, v/v) of ethanol solution to prepare matcha ethanol extracts, and investigated their effects on palmitic acid-induced inflammation of microglial BV-2 cells. The results showed that matcha ethanol extracts could significantly reduce the release of inflammatory cytokines and the expression and phosphorylation of JAK2 and STAT3.
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Affiliation(s)
- Jihong Zhou
- Tea Research Institute, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China.
| | - Haiyu Lin
- Tea Research Institute, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China.
| | - Ping Xu
- Tea Research Institute, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China.
| | - Liyun Yao
- Tea Research Institute, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China.
| | - Qingyi Xie
- Tea Research Institute, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China.
| | - Limin Mao
- Tea Research Institute, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China. and Zhejiang Tea Group Co., Ltd, Hangzhou 310058, P. R. China
| | - Yuefei Wang
- Tea Research Institute, Zhejiang University, Zijingang Campus, Hangzhou 310058, P. R. China.
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18
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Saad B, Ghareeb B, Kmail A. Metabolic and Epigenetics Action Mechanisms of Antiobesity Medicinal Plants and Phytochemicals. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2021; 2021:9995903. [PMID: 34211580 PMCID: PMC8208872 DOI: 10.1155/2021/9995903] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/05/2021] [Accepted: 05/31/2021] [Indexed: 11/29/2022]
Abstract
Ever-growing research efforts are demonstrating the potential of medicinal plants and their phytochemicals to prevent and manage obesity, either individually or synergistically. Multiple combinations of phytochemicals can result in a synergistic activity that increases their beneficial effects at molecular, cellular, metabolic, and temporal levels, offering advantages over chemically synthesized drug-based treatments. Herbs and their derived compounds have the potential for controlling appetite, inhibiting pancreatic lipase activity, stimulating thermogenesis and lipid metabolism, increasing satiety, promoting lipolysis, regulating adipogenesis, and inducing apoptosis in adipocytes. Furthermore, targeting adipocyte life cycle using various dietary bioactives that affect different stages of adipocyte life cycle represents also an important target in the development of new antiobesity drugs. In this regard, different stages of adipocyte development that are targeted by antiobesity drugs can include preadipocytes, maturing preadipocytes, and mature adipocytes. Various herbal-derived active compounds, such as capsaicin, genistein, apigenin, luteolin, kaempferol, myricetin, quercetin, docosahexaenoic acid, quercetin, resveratrol, and ajoene, affect adipocytes during specific stages of development, resulting in either inhibition of adipogenesis or induction of apoptosis. Although numerous molecular targets that can be used for both treatment and prevention of obesity have been identified, targeted single cellular receptor or pathway has resulted in limited success. In this review, we discuss the state-of-the-art knowledge about antiobesity medicinal plants and their active compounds and their effects on several cellular, molecular, and metabolic pathways simultaneously with multiple phytochemicals through synergistic functioning which might be an appropriate approach to better management of obesity. In addition, epigenetic mechanisms (acetylation, methylation, miRNAs, ubiquitylation, phosphorylation, and chromatin packaging) of phytochemicals and their preventive and therapeutic perspective are explored in this review.
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Affiliation(s)
- Bashar Saad
- Faculties of Medicine and Arts and Sciences, Arab American University, P.O. Box 240, Jenin, State of Palestine
- Qasemi Research Center, Al-Qasemi Academy, P.O. Box 124, 30100 Baqa Al-Gharbia, Israel
| | - Bilal Ghareeb
- Faculties of Medicine and Arts and Sciences, Arab American University, P.O. Box 240, Jenin, State of Palestine
| | - Abdalsalam Kmail
- Faculties of Medicine and Arts and Sciences, Arab American University, P.O. Box 240, Jenin, State of Palestine
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19
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Bhardwaj M, Yadav P, Vashishth D, Sharma K, Kumar A, Chahal J, Dalal S, Kataria SK. A Review on Obesity Management through Natural Compounds and a Green Nanomedicine-Based Approach. Molecules 2021; 26:3278. [PMID: 34071722 PMCID: PMC8198321 DOI: 10.3390/molecules26113278] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 04/29/2021] [Accepted: 05/21/2021] [Indexed: 12/14/2022] Open
Abstract
Obesity is a serious health complication in almost every corner of the world. Excessive weight gain results in the onset of several other health issues such as type II diabetes, cancer, respiratory diseases, musculoskeletal disorders (especially osteoarthritis), and cardiovascular diseases. As allopathic medications and derived pharmaceuticals are partially successful in overcoming this health complication, there is an incessant need to develop new alternative anti-obesity strategies with long term efficacy and less side effects. Plants harbor secondary metabolites such as phenolics, flavonoids, terpenoids and other specific compounds that have been shown to have effective anti-obesity properties. Nanoencapsulation of these secondary metabolites enhances the anti-obesity efficacy of these natural compounds due to their speculated property of target specificity and enhanced efficiency. These nanoencapsulated and naive secondary metabolites show anti-obesity properties mainly by inhibiting the lipid and carbohydrate metabolizing enzymes, suppression of adipogenesis and appetite, and enhancing energy metabolism. This review focuses on the plants and their secondary metabolites, along with their nanoencapsulation, that have anti-obesity effects, with their possible acting mechanisms, for better human health.
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Affiliation(s)
- Monika Bhardwaj
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (M.B.); (P.Y.); (D.V.)
| | - Poonam Yadav
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (M.B.); (P.Y.); (D.V.)
| | - Divya Vashishth
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (M.B.); (P.Y.); (D.V.)
| | - Kavita Sharma
- Department of Zoology, Gaur Brahman Degree College, Rohtak 124001, India;
| | - Ajay Kumar
- Department of Zoology, Maharaja Neempal Singh Government College, Bhiwani 127021, India;
| | - Jyoti Chahal
- Department of Zoology, Hindu Girls College, Sonipat 131001, India;
| | - Sunita Dalal
- Department of Biotechnology, Kurukshetra University, Kurukshetra 136119, India;
| | - Sudhir Kumar Kataria
- Department of Zoology, Maharshi Dayanand University, Rohtak 124001, India; (M.B.); (P.Y.); (D.V.)
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20
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Salazar J, Cano C, Pérez JL, Castro A, Díaz MP, Garrido B, Carrasquero R, Chacín M, Velasco M, D Marco L, Rojas-Quintero J, Bermúdez V. Role of Dietary Polyphenols in Adipose Tissue Browning: A Narrative Review. Curr Pharm Des 2021; 26:4444-4460. [PMID: 32611294 DOI: 10.2174/1381612826666200701211422] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/20/2020] [Indexed: 02/07/2023]
Abstract
Lifestyle modifications such as energy restriction and increased physical activity are highly effective in the management of obesity. However, adherence to these therapeutic approaches is poor. On the other hand, synthetic drugs used for obesity control are plagued by adverse effects. Despite these failures, adipose tissue is still an attractive therapeutic target for novel molecules, and thus, the characterisation of new and safer anti-obesity drugs is of significant interest. For this reason, in recent years, phenolic constituents of diverse plants have drawn much attention due to their health-promoting properties, opening new research lines related to brown adipose tissue activation and white adipose tissue (WAT) browning. The goal is to increase energy expenditure levels through thermogenic activity activation by multiple factors, like polyphenols. The suggested mechanisms by which polyphenols can modulate thermogenesis include Nor-epinephrine/Catechol-O-Methyl-Transferase (NE/COMT) inhibition, PPARγ co-activator alpha (PGC-1α)-dependent pathways activation, and mitochondrial biogenesis, among others. Although polyphenols such as quercetin, catechins, chrysin, luteolin, curcumin, resveratrol, gallic acid, and lignans have shown a positive effect on Non-Shivering Thermogenesis and WAT browning, most of them have only been active in murine models or in vitro systems, and their reproducibility in humans has to be proved. Probably in the future, an approach that includes these compounds as part of the nutritional regimen in conjunction with physical exercise, pharmacological and surgical therapy, would allow modulating a pathophysiological mechanism that is still elusive.
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Affiliation(s)
- Juan Salazar
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Clímaco Cano
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - José L Pérez
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Ana Castro
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - María P Díaz
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Bermary Garrido
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Rubén Carrasquero
- Endocrine and Metabolic Diseases Research Center. School of Medicine, University of Zulia, Maracaibo, Venezuela
| | - Maricarmen Chacín
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla, Colombia
| | - Manuel Velasco
- Universidad Central de Venezuela, Escuela de Medicina José María Vargas, Caracas, Venezuela
| | - Luis D Marco
- Hospital Clínico Universitario, INCLIVA, Nephrology department, Valencia, Espana
| | - Joselyn Rojas-Quintero
- Pulmonary and Critical Care Medicine Department, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Valmore Bermúdez
- Universidad Simón Bolívar, Facultad de Ciencias de la Salud, Barranquilla, Colombia
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21
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Siu WS, Ko CH, Shiu HT, Li KK, Shum WT, Leung PC, Zhang JF. Green tea extract synergistically enhances the effectiveness of an antiresorptive drug on management of osteoporosis induced by ovariectomy in a rat model. Exp Ther Med 2021; 21:328. [PMID: 33732301 PMCID: PMC7903424 DOI: 10.3892/etm.2021.9759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 09/25/2020] [Indexed: 11/05/2022] Open
Abstract
Antiresorptive drugs are effective for reducing bone loss in postmenopausal women, but their long-term application may be associated with adverse effects. The present study aimed to investigate the potential in vivo synergistic effects of green tea extract (GTE) and alendronate or raloxifene on the management of osteoporosis. Ovariectomized rats were fed orally with GTE, alendronate and raloxifene at different concentrations and various combinations for 4 weeks. Bone mineral density (BMD) at the lumbar spine, femur and tibia was monitored weekly using peripheral quantitative computed tomography. Bone microarchitecture in the left distal femur was analyzed using micro-CT, while serum biochemical levels were measured using ELISA kits at the end of the study. GTE alone effectively mitigated BMD loss and improved bone microarchitecture in rats. The co-administration of GTE and alendronate increased total BMD in the lumbar spine, femur and tibia. Particularly, GTE synergistically enhanced the effect of alendronate at a low dose on bone microarchitecture and decreased serum tartrate-resistant acid phosphatase. These findings imply that the dosage of certain antiresorptive agents could be reduced when they are administrated simultaneously with GTE, so that their adverse effects are minimized. The findings may be used to support the development of a new synergistic intervention between food therapy and pharmacotherapy on the management of osteoporosis in a long-term basis.
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Affiliation(s)
- Wing Sum Siu
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China.,State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China
| | - Chun Hay Ko
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China.,State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China
| | - Hoi Ting Shiu
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China.,State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China
| | - Kai Kai Li
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China.,State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China
| | - Wai Ting Shum
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China.,State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China
| | - Ping Chung Leung
- Institute of Chinese Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China.,State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China.,Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China
| | - Jin Fang Zhang
- Department of Orthopaedics and Traumatology, Prince of Wales Hospital, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, SAR, P.R. China
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22
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Effect-Directed Profiling of Powdered Tea Extracts for Catechins, Theaflavins, Flavonols and Caffeine. Antioxidants (Basel) 2021; 10:antiox10010117. [PMID: 33467615 PMCID: PMC7830616 DOI: 10.3390/antiox10010117] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/30/2020] [Accepted: 01/07/2021] [Indexed: 02/07/2023] Open
Abstract
The antioxidative activity of Camelia sinensis tea and especially powdered tea extracts on the market, among others used as added value in functional foods, can considerably vary due to not only natural variance, but also adulteration and falsification. Thus, an effect-directed profiling was developed to prove the functional effects or health-promoting claims. It took 3-12 min per sample, depending on the assay incubation time, for 21 separations in parallel. Used as a fast product quality control, it can detect known and unknown bioactive compounds. Twenty tea extracts and a reference mixture of 11-bioactive compounds were investigated in parallel under the same chromatographic conditions by a newly developed reversed phase high-performance thin-layer chromatographic method. In eight planar on-surface assays, effect-directed tea profiles were revealed. Catechins and theaflavins turned out to be not only highly active, but also multi-potent compounds, able to act in a broad range of metabolic pathways. The flavan-3-ols acted as radical scavengers (DPPH∙ assay), antibacterials against Gram-positive Bacillus subtilis bacteria, and inhibitors of tyrosinase, α-glucosidase, β-glucosidase, and acetylcholinesterase. Further effects against Gram-negative Aliivibrio fischeri bacteria and β-glucuronidase were assigned to other components in the powdered tea extracts. According to their specifications, the activity responses of the powdered tea extracts were higher than in mere leaf extracts of green, white and black tea. The multi-imaging and effect-directed profiling was not only able to identify known functional food ingredients, but also to detect unknown bioactive compounds (including bioactive contaminants, residues or adulterations).
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23
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Role of Flavonoids in The Interactions among Obesity, Inflammation, and Autophagy. Pharmaceuticals (Basel) 2020; 13:ph13110342. [PMID: 33114725 PMCID: PMC7692407 DOI: 10.3390/ph13110342] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/22/2020] [Accepted: 10/23/2020] [Indexed: 12/19/2022] Open
Abstract
Nowadays, obesity is considered as one of the main concerns for public health worldwide, since it encompasses up to 39% of overweight and 13% obese (WHO) adults. It develops because of the imbalance in the energy intake/expenditure ratio, which leads to excess nutrients and results in dysfunction of adipose tissue. The hypertrophy of adipocytes and the nutrients excess trigger the induction of inflammatory signaling through various pathways, among others, an increase in the expression of pro-inflammatory adipocytokines, and stress of the endoplasmic reticulum (ER). A better understanding of obesity and preventing its complications are beneficial for obese patients on two facets: treating obesity, and treating and preventing the pathologies associated with it. Hitherto, therapeutic itineraries in most cases are based on lifestyle modifications, bariatric surgery, and pharmacotherapy despite none of them have achieved optimal results. Therefore, diet can play an important role in the prevention of adiposity, as well as the associated disorders. Recent results have shown that flavonoids intake have an essential role in protecting against oxidative damage phenomena, and presents biochemical and pharmacological functions beneficial to human health. This review summarizes the current knowledge of the anti-inflammatory actions and autophagic flux of natural flavonoids, and their molecular mechanisms for preventing and/or treating obesity.
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24
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Hypericum perforatum L.: a medicinal plant with potential as a curative agent against obesity-associated complications. Mol Biol Rep 2020; 47:8679-8686. [PMID: 33090307 DOI: 10.1007/s11033-020-05912-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/10/2020] [Indexed: 12/31/2022]
Abstract
Obesity is a low-grade inflammatory disease that is getting increasingly common among adults and children and causes different complications. Insulin resistance, Type II diabetes, atherosclerosis, metabolic syndrome and hypertension are among the major health problems, that are associated with obesity. Some medications are used to treat obese individuals and metabolic surgery is recommended, if appropriate, for individuals with a BMI ≥ 40. Due to the fact that medications and metabolic surgery are not tolerated by all, researchers focus on alternative therapies. Medicinal plants comprise the most important group of these alternative treatments. Hypericum perforatum L. is the medicinal plant, which we focused on in this study. Hypericum perforatum L. has been recognized as a medicinally valuable plant for over 2000 years. It has been used for generations to treat anxiety, depression, insomnia, gastritis, hemorrhoids, wounds, and burns. Recent studies have indeed shown promising effects for the treatment of obesity. In this study, 3T3-L1 adipocytes were used to mimic the adipocyte differentiation associated with obesity in cellular terms. Lipoprotein lipase (Lpl), Diacylglycerol-O-acyltransferase 1 (Dgat1), Fatty acid synthase (Fasn) markers were used to study the lipid accumulation, and Collagen V (ColV) was used to study cell elasticity to investigate the relationship of the effects of the administration of Hypericum perforatum L. with obesity.
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Sandoval V, Sanz-Lamora H, Arias G, Marrero PF, Haro D, Relat J. Metabolic Impact of Flavonoids Consumption in Obesity: From Central to Peripheral. Nutrients 2020; 12:E2393. [PMID: 32785059 PMCID: PMC7469047 DOI: 10.3390/nu12082393] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 08/01/2020] [Accepted: 08/05/2020] [Indexed: 02/07/2023] Open
Abstract
The prevention and treatment of obesity is primary based on the follow-up of a healthy lifestyle, which includes a healthy diet with an important presence of bioactive compounds such as polyphenols. For many years, the health benefits of polyphenols have been attributed to their anti-oxidant capacity as free radical scavengers. More recently it has been described that polyphenols activate other cell-signaling pathways that are not related to ROS production but rather involved in metabolic regulation. In this review, we have summarized the current knowledge in this field by focusing on the metabolic effects of flavonoids. Flavonoids are widely distributed in the plant kingdom where they are used for growing and defensing. They are structurally characterized by two benzene rings and a heterocyclic pyrone ring and based on the oxidation and saturation status of the heterocyclic ring flavonoids are grouped in seven different subclasses. The present work is focused on describing the molecular mechanisms underlying the metabolic impact of flavonoids in obesity and obesity-related diseases. We described the effects of each group of flavonoids in liver, white and brown adipose tissue and central nervous system and the metabolic and signaling pathways involved on them.
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Affiliation(s)
- Viviana Sandoval
- Department of Nutrition, Food Sciences and Gastronomy, School of Pharmacy and Food Sciences, Food Torribera Campus, University of Barcelona, E-08921 Santa Coloma de Gramenet, Spain; (V.S.); (H.S.-L.); (G.A.); (P.F.M.)
| | - Hèctor Sanz-Lamora
- Department of Nutrition, Food Sciences and Gastronomy, School of Pharmacy and Food Sciences, Food Torribera Campus, University of Barcelona, E-08921 Santa Coloma de Gramenet, Spain; (V.S.); (H.S.-L.); (G.A.); (P.F.M.)
- Institute of Nutrition and Food Safety of the University of Barcelona (INSA-UB), E-08921 Santa Coloma de Gramenet, Spain
| | - Giselle Arias
- Department of Nutrition, Food Sciences and Gastronomy, School of Pharmacy and Food Sciences, Food Torribera Campus, University of Barcelona, E-08921 Santa Coloma de Gramenet, Spain; (V.S.); (H.S.-L.); (G.A.); (P.F.M.)
| | - Pedro F. Marrero
- Department of Nutrition, Food Sciences and Gastronomy, School of Pharmacy and Food Sciences, Food Torribera Campus, University of Barcelona, E-08921 Santa Coloma de Gramenet, Spain; (V.S.); (H.S.-L.); (G.A.); (P.F.M.)
- Institute of Biomedicine of the University of Barcelona (IBUB), E-08028 Barcelona, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBER-OBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain
| | - Diego Haro
- Department of Nutrition, Food Sciences and Gastronomy, School of Pharmacy and Food Sciences, Food Torribera Campus, University of Barcelona, E-08921 Santa Coloma de Gramenet, Spain; (V.S.); (H.S.-L.); (G.A.); (P.F.M.)
- Institute of Biomedicine of the University of Barcelona (IBUB), E-08028 Barcelona, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBER-OBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain
| | - Joana Relat
- Department of Nutrition, Food Sciences and Gastronomy, School of Pharmacy and Food Sciences, Food Torribera Campus, University of Barcelona, E-08921 Santa Coloma de Gramenet, Spain; (V.S.); (H.S.-L.); (G.A.); (P.F.M.)
- Institute of Nutrition and Food Safety of the University of Barcelona (INSA-UB), E-08921 Santa Coloma de Gramenet, Spain
- CIBER Physiopathology of Obesity and Nutrition (CIBER-OBN), Instituto de Salud Carlos III, E-28029 Madrid, Spain
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Challenging energy balance - during sensitivity to food reward and modulatory factors implying a risk for overweight - during body weight management including dietary restraint and medium-high protein diets. Physiol Behav 2020; 221:112879. [PMID: 32199999 DOI: 10.1016/j.physbeh.2020.112879] [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] [Received: 11/07/2019] [Revised: 03/10/2020] [Accepted: 03/15/2020] [Indexed: 02/03/2023]
Abstract
Energy balance is a key concept in the etiology and prevalence of obesity and its co-morbidities, as well as in the development of possible treatments. If energy intake exceeds energy expenditure, a positive energy balance develops and the risk for overweight, obesity, and its co-morbidities increases. Energy balance is determined by energy homeostasis, and challenged by sensitivity to food reward, and to modulatory factors such as circadian misalignment, high altitude, environmental temperature, and physical activity. Food reward and circadian misalignment increase the risk for overweight and obesity, while high altitude, changes in environmental temperature, or physical activity modulate energy balance in different directions. Modulations by hypobaric hypoxia, lowering environmental temperature, or increasing physical activity have been hypothesized to contribute to body weight loss and management, yet no clear evidence has been shown. Dietary approach as part of a lifestyle approach for body weight management should imply reduction of energy intake including control of food reward, thereby sustaining satiety and fat free body mass, sustaining energy expenditure. Green tea catechins and capsaicin in red pepper in part meet these requirements by sustaining energy expenditure and increasing fat oxidation, while capsaicin also suppresses hunger and food intake. Protein intake of at least 0,8 g/kg body weight meets these requirements in that it, during decreased energy intake, increases food intake control including control of food reward, and counteracts adaptive thermogenesis. Prevention of overweight and obesity is underscored by dietary restraint, implying control of sensitivity to challenges to energy balance such as food reward and circadian misalignment. Treatment of overweight and obesity may be possible using a medium-high protein diet (0,8-1,2 g/kg), together with increased dietary restraint, while controlling challenges to energy balance.
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Llaha F, Zamora-Ros R. The Effects of Polyphenol Supplementation in Addition to Calorie Restricted Diets and/or Physical Activity on Body Composition Parameters: A Systematic Review of Randomized Trials. Front Nutr 2020; 7:84. [PMID: 32582757 PMCID: PMC7283923 DOI: 10.3389/fnut.2020.00084] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/07/2020] [Indexed: 12/13/2022] Open
Abstract
Background: Both, calorie restricted diets (CRD) and physical activity (PA) are conventional obesity therapies but their effectiveness is usually limited in the long-term. Polyphenols are bioactive compounds that have shown to possess some anti-obesity properties. The synergic effects between dietary polyphenols and CRD or PA on body weight and fat are supported by several animal studies, but evidence in human is still inconsistent. Thus, our aim was to review the combined effects of polyphenol supplementation with CRD and/or PA on body weight and fat, body mass index (BMI) and waist circumference (WC) in overweight or obese adults. Methods: Electronic databases (PubMed, Web of Science and Cochrane CENTRAL) were searched for randomized clinical trials (RCT) examining the combination of polyphenols with CRD and/or PA (up to December 31st, 2019). Articles were included if they had a duration of intervention ≥ 4 weeks. Both, quality and risk of bias of the included studies were assessed using the Cochrane RoB2 Tool. Results: The review included 4 and 11 RCTs investigating the anti-obesity effects of polyphenol supplementation combined with CRD and PA, respectively. Isoflavone supplementation may increase fat loss during exercise among post-menopausal women in non-Asian studies. In the rest of RCTs regarding polyphenol supplementation and CRD or PA, no additive changes were found. Conclusion: The results do not yet support polyphenol supplementation as a complementary strategy for enhancing the effectiveness of CRD and PA on weight and fat loss. However, this review suggests that isoflavone and soy products combined with lifestyle changes, especially exercise, provide additional anti-obesity effects in postmenopausal women. The potential role of polyphenols alone or, especially, in addition to conventional therapies (CRD and PA) mostly remains uncertain; and therefore, larger and longer RCTs examining these effects are needed. Protocol Registration: PROSPERO CRD42020159890.
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Affiliation(s)
- Fjorida Llaha
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Programme, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
| | - Raul Zamora-Ros
- Unit of Nutrition and Cancer, Cancer Epidemiology Research Programme, Catalan Institute of Oncology (ICO), Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain
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Dereli FTG, Ilhan M, Akkol EK. New Drug Discovery from Medicinal Plants and Phytoconstituents for Depressive Disorders. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2020; 18:92-102. [PMID: 30426905 DOI: 10.2174/1871527317666181114141129] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 11/01/2018] [Accepted: 11/11/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND & OBJECTIVE Depression, a risk factor for several serious diseases, is a highly prevalent and life-threatening psychiatric disorder. It can affect the individual's position in life and reduce the living standards. The research on the use of medicinal plants in treating this disease has increased enormously because of the possible low rehabilitation rate and side effects of available synthetic drugs, such as sexual dysfunction, nausea, fatigue, insomnia, hypersomnia, and weight gain. CONCLUSION Therefore, this review aimed to draw attention to the antidepressant effects of culinary herbs and traditional medicinal plants and their active components, thereby promoting their use in the development of more potent antidepressants with improved side effect profile.
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Affiliation(s)
| | - Mert Ilhan
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkey.,Department of Pharmacognosy, Faculty of Pharmacy, Yuzuncu Yil University, Tusba 65080, Van, Turkey
| | - Esra Küpeli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, Etiler 06330, Ankara, Turkey
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Feeding brown fat: dietary phytochemicals targeting non-shivering thermogenesis to control body weight. Proc Nutr Soc 2020; 79:338-356. [PMID: 32290888 PMCID: PMC7663322 DOI: 10.1017/s0029665120006928] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Excessive adipose accumulation, which is the main driver for the development of secondary metabolic complications, has reached epidemic proportions and combined pharmaceutical, educational and nutritional approaches are required to reverse the current rise in global obesity prevalence rates. Brown adipose tissue (BAT) is a unique organ able to dissipate energy and thus a promising target to enhance BMR to counteract a positive energy balance. In addition, active BAT might support body weight maintenance after weight loss to prevent/reduce relapse. Natural products deliver valuable bioactive compounds that have historically helped to alleviate disease symptoms. Interest in recent years has focused on identifying nutritional constituents that are able to induce BAT activity and thereby enhance energy expenditure. This review provides a summary of selected dietary phytochemicals, including isoflavones, catechins, stilbenes, the flavonoids quercetin, luteolin and resveratrol as well as the alkaloids berberine and capsaicin. Most of the discussed phytochemicals act through distinct molecular pathways e.g. sympathetic nerve activation, AMP-kinase signalling, SIRT1 activity or stimulation of oestrogen receptors. Thus, it might be possible to utilise this multitude of pathways to co-activate BAT using a fine-tuned combination of foods or combined nutritional supplements.
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Teng L, Lee EL, Zhang L, Barnes J. Herbal preparations for weight loss in adults. Hippokratia 2020. [DOI: 10.1002/14651858.cd013576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lida Teng
- Graduate School of Pharmaceutical Sciences, The University of Tokyo; Department of Health Economics and Outcomes Research; Hongo 7-3-1, Bunkyo-ku Tokyo Japan 113-0033
| | - E Lyn Lee
- University of Auckland; Pharmacy Department; 85 Park Road, Grafton Auckland New Zealand 1023
| | - Li Zhang
- Beijing University of Chinese Medicine (BUCM); Dongfang Hospital (The Second Clinical Medical College); No. 6, District 1, Fangxingyuan Fangzhuang, Fengtai District Beijing China 100078
| | - Joanne Barnes
- University of Auckland; School of Pharmacy; Private Bag 92019 Grafton Campus Auckland New Zealand
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Soto-Covasich J, Reyes-Farias M, Torres R, Vasquez K, Duarte L, Quezada J, Jimenez P, Pino M, Garcia-Nannig L, Mercado L, Garcia-Diaz D. A polyphenol-rich Calafate (Berberis microphylla) extract rescues glucose tolerance in mice fed with cafeteria diet. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103856] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Hamaoka T, Nirengi S, Fuse S, Amagasa S, Kime R, Kuroiwa M, Endo T, Sakane N, Matsushita M, Saito M, Yoneshiro T, Kurosawa Y. Near-Infrared Time-Resolved Spectroscopy for Assessing Brown Adipose Tissue Density in Humans: A Review. Front Endocrinol (Lausanne) 2020; 11:261. [PMID: 32508746 PMCID: PMC7249345 DOI: 10.3389/fendo.2020.00261] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 04/08/2020] [Indexed: 01/24/2023] Open
Abstract
Brown adipose tissue (BAT) mediates adaptive thermogenesis upon food intake and cold exposure, thus potentially contributing to the prevention of lifestyle-related diseases. 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) with computed tomography (CT) (18FDG-PET/CT) is a standard method for assessing BAT activity and volume in humans. 18FDG-PET/CT has several limitations, including high device cost and ionizing radiation and acute cold exposure necessary to maximally stimulate BAT activity. In contrast, near-infrared spectroscopy (NIRS) has been used for measuring changes in O2-dependent light absorption in the tissue in a non-invasive manner, without using radiation. Among NIRS, time-resolved NIRS (NIRTRS) can quantify the concentrations of oxygenated and deoxygenated hemoglobin ([oxy-Hb] and [deoxy-Hb], respectively) by emitting ultrashort (100 ps) light pulses and counts photons, which are scattered and absorbed in the tissue. The basis for assessing BAT density (BAT-d) using NIRTRS is that the vascular density in the supraclavicular region, as estimated using Hb concentration, is higher in BAT than in white adipose tissue. In contrast, relatively low-cost continuous wavelength NIRS (NIRCWS) is employed for measuring relative changes in oxygenation in tissues. In this review, we provide evidence for the validity of NIRTRS and NIRCWS in estimating human BAT characteristics. The indicators (IndNIRS) examined were [oxy-Hb]sup, [deoxy-Hb]sup, total hemoglobin [total-Hb]sup, Hb O2 saturation (StO2sup), and reduced scattering coefficient ( μs sup' ) in the supraclavicular region, as determined by NIRTRS, and relative changes in corresponding parameters, as determined by NIRCWS. The evidence comprises the relationships between the IndNIRS investigated and those determined by 18FDG-PET/CT; the correlation between the IndNIRS and cold-induced thermogenesis; the relationship of the IndNIRS to parameters measured by 18FDG-PET/CT, which responded to seasonal temperature fluctuations; the relationship of the IndNIRS and plasma lipid metabolites; the analogy of the IndNIRS to chronological and anthropometric data; and changes in the IndNIRS following thermogenic food supplementation. The [total-Hb]sup and [oxy-Hb]sup determined by NIRTRS, but not parameters determined by NIRCWS, exhibited significant correlations with cold-induced thermogenesis parameters and plasma androgens in men in winter or analogies to 18FDG-PET. We conclude that NIRTRS can provide useful information for assessing BAT-d in a simple, rapid, non-invasive way, although further validation study is still needed.
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Affiliation(s)
- Takafumi Hamaoka
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan
- *Correspondence: Takafumi Hamaoka
| | - Shinsuke Nirengi
- Division of Preventive Medicine, National Hospital Organization Kyoto Medical Center, Clinical Research Institute, Kyoto, Japan
- Dorothy M. Davis Heart and Lung Research Institute, Wexner Medical Center, Columbus, OH, United States
| | - Sayuri Fuse
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan
| | - Shiho Amagasa
- Department of Preventive Medicine and Public Health, Tokyo Medical University, Tokyo, Japan
| | - Ryotaro Kime
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan
| | - Miyuki Kuroiwa
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan
| | - Tasuki Endo
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan
| | - Naoki Sakane
- Division of Preventive Medicine, National Hospital Organization Kyoto Medical Center, Clinical Research Institute, Kyoto, Japan
| | | | - Masayuki Saito
- Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Takeshi Yoneshiro
- Diabetes Center, University of California San Francisco, San Francisco, CA, United States
| | - Yuko Kurosawa
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan
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Polyphenol-rich green tea extract induces thermogenesis in mice by a mechanism dependent on adiponectin signaling. J Nutr Biochem 2019; 78:108322. [PMID: 32120266 DOI: 10.1016/j.jnutbio.2019.108322] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 11/11/2019] [Accepted: 12/06/2019] [Indexed: 12/12/2022]
Abstract
Adiponectin is downregulated in obesity negatively impacting the thermogenesis and impairing white fat browning. Despite the notable effects of green tea (GT) extract in the enhancement of thermogenesis, if its effects are being mediated by adiponectin has been scarcely explored. For this purpose, we investigated the role of adiponectin in the thermogenic actions of GT extract by using an adiponectin-knockout mice model. Male wild-type (WT) and knockout (AdipoKO) C57Bl/6 mice (3 months) were divided into 6 groups: mice fed a standard diet+gavage with water (SD WT, and SD AdipoKO), high-fat diet (HFD)+gavage with water (HFD WT, and HFD AdipoKO), and HFD + gavage with 500 mg/kg of body weight (BW) of GT extract (HFD + GT WT, and HFD + GT AdipoKO). After 20 weeks of experimentation, mice were euthanized and adipose tissue was properly removed. Our findings indicate that treatment with GT extract reversed complications of obesity in WT mice by decreasing final BW gain, adiposity index, adipocyte size and insulin resistance (IR). However, the action of the GT extract was not effective in reversing those markers in the AdipoKO mice, although GT acts independently in the reversal of IR. GT-treatment induced enhancement in energy expenditure (EE), BAT thermogenesis, and promoted browning phenotype in the subcutaneous WAT (scWAT) of WT mice. On the other hand, the thermogenic program was markedly impaired in BAT and scWAT of AdipoKO mice. Our outcomes unveiled adiponectin as a key direct signal for GT extract inducing adaptive thermogenesis and browning in scWAT.
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Sugiura C, Zheng G, Liu L, Sayama K. Catechins and Caffeine Promote Lipid Metabolism and Heat Production Through the Transformation of Differentiated 3T3-L1 Adipocytes from White to Beige Adipocytes. J Food Sci 2019; 85:192-200. [PMID: 31777962 DOI: 10.1111/1750-3841.14811] [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: 05/07/2019] [Revised: 08/08/2019] [Accepted: 08/15/2019] [Indexed: 11/30/2022]
Abstract
To elucidate effects of catechins and caffeine on lipid metabolism in adipocytes and identify the mechanism of action, differentiated 3T3-L1 adipocytes were incubated in culture media containing catechins at 1, 2.5, 5, and 10 µg/mL and caffeine at 50 and 100 µg/mL, singly or in combination, for 8 days. Intracellular lipid accumulation and glycerol-3-phosphate dehydrogenase activity were strongly suppressed by catechins and caffeine combination treatment. The mRNA expression of PPARɤ, GLUT4, HSL, UCP-1, and TMEM26 were significantly increased in the combined groups. These findings suggest that the combined treatment inhibited lipid synthesis and improved lipid metabolism in adipocytes. Moreover, it was indicated that the differentiated 3T3-L1 adipocytes could be transformed from white adipocytes to beige-like adipocytes by catechins and caffeine, and accordingly that this transformation could promote calorigenic action. PRACTICAL APPLICATION: In this study, we revealed that the combined treatment of catechins and caffeine inhibited lipid synthesis and improved lipid metabolism in adipocytes. Moreover, the treatment may contribute to the transforming from white adipocytes to beige-like adipocytes, which could strongly promote calorigenic action.
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Affiliation(s)
- Chikako Sugiura
- Faculty of Health Promotional Sciences, Dept. of Health Promotional Sciences, Hamamatsu Univ., Hamamatsu, 431-2102, Japan.,Graduate School of Science and Technology, Shizuoka Univ., Shizuoka, 422-8529, Japan
| | - Guodong Zheng
- Key Laboratory of Natural Product Research and Development, College of Food Science and Engineering, Jiangxi Agricultural Univ., Nanchang, 330029, China
| | - Litong Liu
- Graduate School of Science and Technology, Shizuoka Univ., Shizuoka, 422-8529, Japan
| | - Kazutoshi Sayama
- Graduate School of Science and Technology, Shizuoka Univ., Shizuoka, 422-8529, Japan
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A novel method for measuring diet-induced thermogenesis in mice. MethodsX 2019; 6:1950-1956. [PMID: 31667091 PMCID: PMC6812409 DOI: 10.1016/j.mex.2019.08.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 08/23/2019] [Indexed: 11/20/2022] Open
Abstract
Diet-induced thermogenesis (DIT) refers to energy expenditure (EE) related to food consumption. Enhancing DIT can lead to weight loss. Factors that increase DIT are expected to lower body mass index and body fat mass. Although various methods have been developed for measuring DIT in humans, there is currently no method available for calculating absolute DIT values in mice. Therefore, we attempted to measure DIT in mice by applying the method more commonly used for humans. Mouse energy metabolism was first measured under fasting conditions; EE was plotted against the square root of the activity count, and a linear regression equation was fit to the data. Then, energy metabolism was measured in mice that were allowed to feed ad libitum, and EE was plotted in the same way. We calculated the DIT by subtracting the predicted EE value from the fed EE value for the same activity count. The methodology for measuring DIT in mice may be helpful for researching ways of combatting obesity by increasing DIT. The methodology for measuring absolute DIT values in mice is developed. For mice, the proportion of DIT compared with calorie intake and EE are 12.3% and 21.7%, respectively.
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Zhang X, Li X, Fang H, Guo F, Li F, Chen A, Huang S. Flavonoids as inducers of white adipose tissue browning and thermogenesis: signalling pathways and molecular triggers. Nutr Metab (Lond) 2019; 16:47. [PMID: 31346342 PMCID: PMC6637576 DOI: 10.1186/s12986-019-0370-7] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 06/18/2019] [Indexed: 12/27/2022] Open
Abstract
Background Flavonoids are a class of plant and fungus secondary metabolites and are the most common group of polyphenolic compounds in the human diet. In recent studies, flavonoids have been shown to induce browning of white adipocytes, increase energy consumption, inhibit high-fat diet (HFD)-induced obesity and improve metabolic status. Promoting the activity of brown adipose tissue (BAT) and inducing white adipose tissue (WAT) browning are promising means to increase energy expenditure and improve glucose and lipid metabolism. This review summarizes recent advances in the knowledge of flavonoid compounds and their metabolites. Methods We searched the following databases for all research related to flavonoids and WAT browning published through March 2019: PubMed, MEDLINE, EMBASE, and the Web of Science. All included studies are summarized and listed in Table 1. Result We summarized the effects of flavonoids on fat metabolism and the specific underlying mechanisms in sub-categories. Flavonoids activated the sympathetic nervous system (SNS), promoted the release of adrenaline and thyroid hormones to increase thermogenesis and induced WAT browning through the AMPK-PGC-1α/Sirt1 and PPAR signalling pathways. Flavonoids may also promote brown preadipocyte differentiation, inhibit apoptosis and produce inflammatory factors in BAT. Conclusion Flavonoids induced WAT browning and activated BAT to increase energy consumption and non-shivering thermogenesis, thus inhibiting weight gain and preventing metabolic diseases.
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Affiliation(s)
- Xuejun Zhang
- Department of Orthopedics, First People's Hospital of Yichang, No.4 Hudi Street, Yichang, 443000 Hubei Province China
| | - Xin Li
- 2Department of Pediatrics, Wuhan Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1277 Jie Fang Avenue, Wuhan, 430022 Hubei Province China
| | - Huang Fang
- 3Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jie Fang Avenue, Wuhan, 430030 Hubei Province China
| | - Fengjin Guo
- 3Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jie Fang Avenue, Wuhan, 430030 Hubei Province China
| | - Feng Li
- 3Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jie Fang Avenue, Wuhan, 430030 Hubei Province China
| | - Anmin Chen
- 3Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jie Fang Avenue, Wuhan, 430030 Hubei Province China
| | - Shilong Huang
- 3Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, No.1095 Jie Fang Avenue, Wuhan, 430030 Hubei Province China
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Song D, Cheng L, Zhang X, Wu Z, Zheng X. The modulatory effect and the mechanism of flavonoids on obesity. J Food Biochem 2019; 43:e12954. [PMID: 31368555 DOI: 10.1111/jfbc.12954] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 05/15/2019] [Accepted: 05/31/2019] [Indexed: 12/19/2022]
Abstract
With the improvement of living standards, obesity has become a serious health problem all over the word. Currently, the methods and drugs for obesity treatment have some limitations and side effects. Flavonoids are active constituents with various biological activities, widely found in plants, and numerous studies have shown that flavonoids can inhibit obesity and related metabolism disorders effectively. This perspective reviews the recent progress in understanding the anti-obesity effects of flavonoids through modulating food intake, enzyme activities, nutrition absorption, adipogenesis and adipocyte lifecycle, thermogenesis, energy consumption, and intestinal microbiota. PRACTICAL APPLICATIONS: Natural bioactive substance flavonoids have anti-obesity property, which may play a role in anti-obesity drugs or functional food without any side effects. Flavonoids can inhibit weight gain directly or through their biologically active metabolites by various potential pathways. A better understanding of the modulatory effect and the mechanism of flavonoids on obesity will allow us to better utilize flavonoids in plants to treat obesity and related metabolic syndrome.
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Affiliation(s)
- Dan Song
- Department of Food Science and Engineering, Ningbo University, Ningbo, P.R. China
| | - Lu Cheng
- Department of Food Science, Rutgers, The State University of New Jersey, New Brunswick, New Jersey
| | - Xin Zhang
- Department of Food Science and Engineering, Ningbo University, Ningbo, P.R. China
| | - Zufang Wu
- Department of Food Science and Engineering, Ningbo University, Ningbo, P.R. China
| | - Xiaojie Zheng
- Department of Agriculture and Biotechnology, Wenzhou Vocational College of Science and Technology, Wenzhou, P.R. China
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Su H, Wu W, Wan X, Ning J. Discriminating geographical origins of green tea based on amino acid, polyphenol, and caffeine content through high-performance liquid chromatography: Taking Lu'an guapian tea as an example. Food Sci Nutr 2019; 7:2167-2175. [PMID: 31289665 PMCID: PMC6593377 DOI: 10.1002/fsn3.1062] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/13/2019] [Accepted: 03/31/2019] [Indexed: 11/20/2022] Open
Abstract
Seventy-three Lu'an guapian tea (LAGP) samples were collected from 11 growing locations in the city of Lu'an, Anhui Province, China. Through high-performance liquid chromatography, 18 amino acids, along with gallic acid, caffeine, and five catechins, were quantitatively detected. Hierarchical cluster, correlation and principal component analysis, and a support vector machine were used for geographical discrimination. The findings suggested that the differences in tea quality between the inner and outer mountain regions are related to isoleucine, leucine, phenylalanine, and valine contents, with a correlation coefficient of more than 0.85. Principal component analysis combining with support vector machine was a feasible method. The identification rates for the inner and outer mountains were 97.96% in the training set and 95.83% in the prediction set. Furthermore, the identification rates for the three counties were 91.84% and 95.83% in the training and prediction sets, respectively.
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Affiliation(s)
- Huan Su
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiChina
| | - Weiquan Wu
- Anhui Lu’an Guapian Tea Industry Co., LtdLu’anChina
| | - Xiaochun Wan
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiChina
| | - Jingming Ning
- State Key Laboratory of Tea Plant Biology and UtilizationAnhui Agricultural UniversityHefeiChina
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Li X, Wang W, Hou L, Wu H, Wu Y, Xu R, Xiao Y, Wang X. Does tea extract supplementation benefit metabolic syndrome and obesity? A systematic review and meta-analysis. Clin Nutr 2019; 39:1049-1058. [PMID: 31174941 DOI: 10.1016/j.clnu.2019.05.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 04/23/2019] [Accepted: 05/16/2019] [Indexed: 01/03/2023]
Abstract
BACKGROUND Given the global epidemic of obesity, numerous strategies have been employed in the management of metabolic syndrome (MS) in this population. A meta-analysis was designed in the present investigation to evaluate the benefits of tea extract (TE) supplementation in MS in obesity. METHODS We conducted searches of published literature in MEDLINE, PsycINFO, Scopus, EMBASE, and the Cochrane Central Register of Controlled Trials (CENTRAL) databases from inception in 1985 to May 2017. Randomized controlled trials (RCTs) which studied TE consumption in obesity with MS were analyzed. Results were summarized using weighted mean differences (WMDs), standardized mean differences (SMDs) or odds ratio (OR) by suitable effect model. RESULTS Sixteen eligible randomized controlled trials, including 1090 subjects were identified. Benefits were demonstrated on reduction of Body Mass Index (BMI) (SMD, -0.27; 95% CI, -0.40 to -0.15, P < 0.0001) and blood glucose (SMD, -0.22; 95% CI, -0.34 to -0.10, P = 0.0003), and increasing high-density lipoprotein (HDL) (SMD, 0.18; 95% CI, 0.01 to 0.35, P = 0.03). Limited benefits without significance were observed on blood pressure and other anthropometric, cholesterol, and biochemistry outcomes. All-cause adverse events were minimal (0.99; 95% CI: 0.55, 1.77, P = 0.97). CONCLUSIONS This meta-analysis suggests that consumption of TE supplementation in the obese with MS has beneficial effects on improvement of lipid and glucose metabolism, as well as in the facilitation of weight loss.
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Affiliation(s)
- Xiumin Li
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Wen Wang
- Department of Radiology & Functional and Molecular Imaging Key Lab of Shaanxi Province, Tangdu Hospital, Fourth Military Medical University, 569 Xinsi Road, Xi'an, 710038, Shaanxi, PR China
| | - Liming Hou
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Huanghui Wu
- Department of Anesthesiology, Fuzhou General Hospital of Nanjing Military Region, Fuzhou 350025, PR China
| | - Yongjie Wu
- Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Rong Xu
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Yuan Xiao
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China
| | - Xiaoming Wang
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, PR China.
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Carrasco-Pozo C, Cires MJ, Gotteland M. Quercetin and Epigallocatechin Gallate in the Prevention and Treatment of Obesity: From Molecular to Clinical Studies. J Med Food 2019; 22:753-770. [PMID: 31084513 DOI: 10.1089/jmf.2018.0193] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Obesity is a worldwide epidemic, which is characterized by the excess accumulation of adipose tissue and to an extent that impairs both the physical and psychosocial health and well-being. There are several weight-loss strategies available, including dietary modification, pharmacotherapy, and bariatric surgery, but many are ineffective or not a long-term solution. Bioactive compounds present in medicinal plants and plant extracts, like polyphenols, constitute the oldest and most extensive form of alternative treatments for the prevention and management of obesity. Their consumption is currently increasing in the population due to the high cost, potential adverse effects, and limited benefits of the currently available pharmaceutical drugs. A great number of studies has explored how dietary polyphenols can interfere with the different mechanisms associated with obesity development. They suggest that these compounds can decrease energy and food intake, lipogenesis, and preadipocyte differentiation and proliferation, while increasing energy expenditure, lipolysis, and fat oxidation. Both quercetin, one of the most common dietary flavonols in the western diet, and epigallocatechin gallate (EGCG), the most abundant polyphenol in green tea, exhibit antiobesity effects in adipocyte cultures and animal models. However, the extrapolation of these potential benefits to obese humans remains unclear. Although quercetin supplementation does not seem to exert any beneficial effects on body weight, this polyphenol could prevent the obesity-associated mortality by reducing cardiovascular disease risk. An important consideration for the design of further trials is the occurrence of gene polymorphisms in key enzymes involved in flavanol metabolism, which determines a subject's sensitivity to catechins and seems, therefore, crucial for the success of the antiobesity intervention. Although the evidence supporting antiobesity effects is more consistent in EGCG than with quercetin studies, they could still be beneficial by reducing the cardiovascular risk of obese subjects, rather than inducing body weight loss.
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Affiliation(s)
- Catalina Carrasco-Pozo
- 1Department of Nutrition, Faculty of Medicine, University of Chile, Independencia, Chile.,2Discovery Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, Queensland, Australia
| | - María Jose Cires
- 1Department of Nutrition, Faculty of Medicine, University of Chile, Independencia, Chile
| | - Martin Gotteland
- 1Department of Nutrition, Faculty of Medicine, University of Chile, Independencia, Chile.,3Laboratory of Microbiology and Probiotics, Institute of Nutrition and Food Technology (INTA), University of Chile, Santiago, Chile
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Katada S, Yanagimoto A, Matsui Y, Hibi M, Osaki N, Kobayashi S, Katsuragi Y. Effect of tea catechins with caffeine on energy expenditure in middle-aged men and women: a randomized, double-blind, placebo-controlled, crossover trial. Eur J Nutr 2019; 59:1163-1170. [PMID: 31062079 PMCID: PMC7098939 DOI: 10.1007/s00394-019-01976-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 04/25/2019] [Indexed: 12/11/2022]
Abstract
Purpose It has been reported that tea catechins increase energy metabolism, but their effect on resting metabolic rate (RMR) remains under debate. This study aimed to examine the effect of repeated intake of tea catechins on energy metabolism in the resting state in middle-aged men and women. Methods A total of 30 middle-aged men and women [13 women; age (mean ± SD) 52 ± 4 years; BMI 21.9 ± 2.2 kg/m2] were recruited. A randomized, double-blind, crossover study was conducted using a tea catechin-enriched beverage (611 mg catechins, 88 mg caffeine) and a placebo beverage (0 mg catechins, 81 mg caffeine) as test beverages. After 2 weeks of continuous test beverage intake, fasting RMR and energy expenditure (EE) after the ingestion of test beverage were measured. Measurements of forehead temperature (proxy for core temperature) and skin temperature were also obtained simultaneously. Results Among participants who underwent measurements, 26 (10 women; mean age 52 ± 4 years; mean BMI 22.1 ± 2.1 kg/m2) were analyzed. The EE increased significantly after ingestion of the tea catechin beverage compared with the placebo beverage (placebo treatment: 5502 ± 757 kJ/day; catechin treatment: 5598 ± 800 kJ/day; P = 0.041). No between-treatment differences in fasting RMR or the respiratory quotient were detected. In addition, the forehead and skin temperature did not differ significantly between the placebo and catechin treatments. Conclusion This study revealed that continuous intake of tea catechins with caffeine for 2 weeks significantly increased EE after ingestion of the tea catechin but not fasting RMR in middle-aged men and women. Clinical Trial Registry number and website This trial was registered at www.umin.ac.jp/ctr/ as UMIN000025810 and UMIN000025811. Electronic supplementary material The online version of this article (10.1007/s00394-019-01976-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shun Katada
- Biological Science Research Laboratories, Kao Corporation, 2-1-3 Bunka, Sumida, Tokyo, 131-8501, Japan.
| | - Aya Yanagimoto
- Biological Science Research Laboratories, Kao Corporation, 2-1-3 Bunka, Sumida, Tokyo, 131-8501, Japan
| | - Yuji Matsui
- Biological Science Research Laboratories, Kao Corporation, 2-1-3 Bunka, Sumida, Tokyo, 131-8501, Japan
| | - Masanobu Hibi
- Biological Science Research Laboratories, Kao Corporation, 2-1-3 Bunka, Sumida, Tokyo, 131-8501, Japan
| | - Noriko Osaki
- Biological Science Research Laboratories, Kao Corporation, 2-1-3 Bunka, Sumida, Tokyo, 131-8501, Japan
| | - Shigeru Kobayashi
- Department of Surgery, Tokyo Rinkai Hospital, 1-4-2 Rinkai-cho, Edogawa, Tokyo, 134-0086, Japan
| | - Yoshihisa Katsuragi
- Health Care Food Research Laboratories, Kao Corporation, 2-1-3 Bunka, Sumida, Tokyo, 131-8501, Japan
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Bhutani KK, Birari R, Kapat K. Potential Anti-obesity and Lipid Lowering Natural Products: A Review. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200316] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Obesity has reached epidemic proportions globally, with more than 1 billion adults overweight - at least 300 million of them clinically obese. In Ayurveda, obesity is called ‘medoroga’. The detailed features and treatments of the disease have been described in an old Ayurvedic text, Charak and Sushrut Samhita. There are some native plants that are commonly used for the treatment of obesity in Ayurveda. Unfortunately, only few medications are available in the market, with side effects and unacceptable efficacy. With the current view that botanical drugs can be developed faster and more cheaply than conventional single entity pharmaceuticals, the review mainly focuses on the rationality of their use with appropriate literature data support.
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Affiliation(s)
- Kamlesh Kumar Bhutani
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab - 160 062, India
| | - Rahul Birari
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab - 160 062, India
| | - Kausik Kapat
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab - 160 062, India
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El Hadi H, Di Vincenzo A, Vettor R, Rossato M. Food Ingredients Involved in White-to-Brown Adipose Tissue Conversion and in Calorie Burning. Front Physiol 2019; 9:1954. [PMID: 30687134 PMCID: PMC6336830 DOI: 10.3389/fphys.2018.01954] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 12/22/2018] [Indexed: 12/12/2022] Open
Abstract
Obesity is the consequence of chronic positive energy balance and considered a leading risk factor for cardiovascular and metabolic diseases. Due to its epidemic trends among children and adults, there is an increasing interest in implementing new therapeutic interventions to tackle overweight and obesity. Activation of brown adipose tissue (BAT) represents today a promising strategy to enhance energy expenditure (EE) through heat production. More recently, “browning” of white adipose tissue (WAT) has gained increasing attention in research area as an alternative method in stimulating energy dissipation. This minireview aims to summarize the current knowledge of some dietary compounds that have been shown to promote BAT activation and WAT browning with subsequent beneficial health effects.
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Affiliation(s)
- Hamza El Hadi
- Internal Medicine 3, Department of Medicine, University of Padua, Padua, Italy
| | - Angelo Di Vincenzo
- Internal Medicine 3, Department of Medicine, University of Padua, Padua, Italy
| | - Roberto Vettor
- Internal Medicine 3, Department of Medicine, University of Padua, Padua, Italy
| | - Marco Rossato
- Internal Medicine 3, Department of Medicine, University of Padua, Padua, Italy
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44
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Moonen MP, Nascimento EB, van Marken Lichtenbelt WD. Human brown adipose tissue: Underestimated target in metabolic disease? Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:104-112. [DOI: 10.1016/j.bbalip.2018.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 03/16/2018] [Accepted: 05/21/2018] [Indexed: 02/06/2023]
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45
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Risks associated with fat burners: A toxicological perspective. Food Chem Toxicol 2019; 123:205-224. [DOI: 10.1016/j.fct.2018.10.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/16/2018] [Accepted: 10/22/2018] [Indexed: 12/18/2022]
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46
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Xu M, Yang L, Zhu Y, Liao M, Chu L, Li X, Lin L, Zheng G. Collaborative effects of chlorogenic acid and caffeine on lipid metabolismviathe AMPKα-LXRα/SREBP-1c pathway in high-fat diet-induced obese mice. Food Funct 2019; 10:7489-7497. [DOI: 10.1039/c9fo00502a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The combination of CGA and caffeine exhibits anti-obesity effects and regulates lipid metabolismviathe AMPKα-LXRα/SREBP-1c signaling pathway in mice with high-fat diet-induced obesity.
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Affiliation(s)
- Meng Xu
- Jiangxi Key Laboratory of Natural Product and Functional Food
- School of Food Science and Engineering
- Jiangxi Agricultural University
- Nanchang
- China
| | - Licong Yang
- Jiangxi Key Laboratory of Natural Product and Functional Food
- School of Food Science and Engineering
- Jiangxi Agricultural University
- Nanchang
- China
| | - Yanping Zhu
- Jiangxi Key Laboratory of Natural Product and Functional Food
- School of Food Science and Engineering
- Jiangxi Agricultural University
- Nanchang
- China
| | - Mingfu Liao
- School of Foreign Languages
- Jiangxi Agricultural University
- Nanchang
- China
| | - Lulu Chu
- Jiangxi Key Laboratory of Natural Product and Functional Food
- School of Food Science and Engineering
- Jiangxi Agricultural University
- Nanchang
- China
| | - Xin Li
- Jiangxi Key Laboratory of Natural Product and Functional Food
- School of Food Science and Engineering
- Jiangxi Agricultural University
- Nanchang
- China
| | - Lezhen Lin
- Jiangxi Key Laboratory of Natural Product and Functional Food
- School of Food Science and Engineering
- Jiangxi Agricultural University
- Nanchang
- China
| | - Guodong Zheng
- Jiangxi Key Laboratory of Natural Product and Functional Food
- School of Food Science and Engineering
- Jiangxi Agricultural University
- Nanchang
- China
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Jang MH, Kang NH, Mukherjee S, Yun JW. Theobromine, a Methylxanthine in Cocoa Bean, Stimulates Thermogenesis by Inducing White Fat Browning and Activating Brown Adipocytes. BIOTECHNOL BIOPROC E 2018. [DOI: 10.1007/s12257-018-0434-y] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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48
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Sanlier N, Atik İ, Atik A. A minireview of effects of white tea consumption on diseases. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.10.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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49
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Machado ML, Arantes LP, Gubert P, Zamberlan DC, da Silva TC, da Silveira TL, Boligon A, Soares FAA. Ilex paraguariensis modulates fat metabolism in Caenorhabditis elegans through purinergic system (ADOR-1) and nuclear hormone receptor (NHR-49) pathways. PLoS One 2018; 13:e0204023. [PMID: 30252861 PMCID: PMC6155532 DOI: 10.1371/journal.pone.0204023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 09/01/2018] [Indexed: 11/30/2022] Open
Abstract
Ilex paraguariensis is a well-known plant that is widely consumed in South America, primarily as a drink called mate. Mate is described to have stimulant and medicinal properties. Considering the potential anti-lipid effects of I. paraguariensis infusion, we used an extract of this plant as a possible modulator of fat storage to control lipid metabolism in worms. Herein, the I. paraguariensis-dependent modulation of fat metabolism in Caenorhabditis elegans was investigated. C. elegans were treated with I. paraguariensis aqueous extract (1 mg/ml) from L1 larvae stage until adulthood, to simulate the primary form of consumption. Expression of adipocyte triglyceride lipase 1 (ATGL-1) and heat shock protein 16.2, lipid accumulation through C1-BODIPY-C12 (BODIPY) lipid staining, behavioral parameters, body length, total body energy expenditure and overall survival were analyzed. Total body energy expenditure was determined by the oxygen consumption rate in N2, nuclear hormone receptor knockout, nhr-49(nr2041), and adenosine receptor knockout, ador-1(ox489) strains. Ilex paraguariensis extract increased ATGL-1 expression 20.06% and decreased intestinal BODIPY fat staining 63.36%, compared with the respective control group, without affecting bacterial growth and energetic balance, while nhr-49(nr2041) and ador-1(ox489) strains blocked the worm fat loss. In addition, I. paraguariensis increased the oxygen consumption in N2 worms, but not in mutant strains, increased N2 worm survival following juglone exposure, and did not alter hsp-16.2 expression. We demonstrate for the first time that I. paraguariensis can decrease fat storage and increase body energy expenditure in worms. These effects depend on the purinergic system (ADOR-1) and NHR-49 pathways. Ilex paraguariensis upregulated the expression of ATGL-1 to modulate fat metabolism. Furthermore, our data corroborates with other studies that demonstrate that C. elegans is a useful tool for studies of fat metabolism and energy consumption.
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Affiliation(s)
- Marina Lopes Machado
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Leticia Priscilla Arantes
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Priscila Gubert
- Centro de Ciências Biológicas e da Saúde, Campus Reitor Edgard Santos, Universidade Federal do Oeste da Bahia, Barreiras, Bahia, Brazil
| | - Daniele Coradini Zamberlan
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Thayanara Cruz da Silva
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Tássia Limana da Silveira
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Aline Boligon
- Departamento da Farmácia Industrial, Laboratório de Pesquisa Fitoquímica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
| | - Félix Alexandre Antunes Soares
- Departamento de Bioquímica e Biologia Molecular, Programa de Pós-graduação em Ciências Biológicas: Bioquímica Toxicológica, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul, Brazil
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Effects of Polyphenols on Thermogenesis and Mitochondrial Biogenesis. Int J Mol Sci 2018; 19:ijms19092757. [PMID: 30217101 PMCID: PMC6164046 DOI: 10.3390/ijms19092757] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 08/31/2018] [Accepted: 09/03/2018] [Indexed: 02/05/2023] Open
Abstract
Obesity is a health problem worldwide, and energy imbalance has been pointed out as one of the main factors responsible for its development. As mitochondria are a key element in energy homeostasis, the development of obesity has been strongly associated with mitochondrial imbalance. Polyphenols are the largest group of phytochemicals, widely distributed in the plant kingdom, abundant in fruits and vegetables, and have been classically described as antioxidants owing to their well-established ability to eliminate free radicals and reactive oxygen species (ROS). During the last decade, however, growing evidence reports the ability of polyphenols to perform several important biological activities in addition to their antioxidant activity. Special attention has been given to the ability of polyphenols to modulate mitochondrial processes. Thus, some polyphenols are now recognized as molecules capable of modulating pathways that regulate mitochondrial biogenesis, ATP synthesis, and thermogenesis, among others. The present review reports the main benefits of polyphenols in modulating mitochondrial processes that favor the regulation of energy expenditure and offer benefits in the management of obesity, especially thermogenesis and mitochondrial biogenesis.
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