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Lee YG, Lee SR, Baek HJ, Kwon JE, Baek NI, Kang TH, Kim H, Kang SC. The Effects of Body Fat Reduction through the Metabolic Control of Steam-Processed Ginger Extract in High-Fat-Diet-Fed Mice. Int J Mol Sci 2024; 25:2982. [PMID: 38474229 DOI: 10.3390/ijms25052982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/02/2024] [Accepted: 03/03/2024] [Indexed: 03/14/2024] Open
Abstract
The prevalence of metabolic syndrome is increasing globally due to behavioral and environmental changes. There are many therapeutic agents available for the treatment of chronic metabolic diseases, such as obesity and diabetes, but the data on their efficacy and safety are lacking. Through a pilot study by our group, Zingiber officinale rhizomes used as a spice and functional food were selected as an anti-obesity candidate. In this study, steam-processed ginger extract (GGE) was used and we compared its efficacy at alleviating metabolic syndrome-related symptoms with that of conventional ginger extract (GE). Compared with GE, GGE (25-100 μg/mL) had an increased antioxidant capacity and α-glucosidase inhibitory activity in vitro. GGE was better at suppressing the differentiation of 3T3-L1 adipocytes and lipid accumulation in HepG2 cells and promoting glucose utilization in C2C12 cells than GE. In 16-week high-fat-diet (HFD)-fed mice, GGE (100 and 200 mg/kg) improved biochemical profiles, including lipid status and liver function, to a greater extent than GE (200 mg/kg). The supplementation of HFD-fed mice with GGE (200 mg/kg) resulted in the downregulation of SREBP-1c and FAS gene expression in the liver. Collectively, our results indicate that GGE is a promising therapeutic for the treatment of obesity and metabolic syndrome.
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Affiliation(s)
- Yeong-Geun Lee
- Department of Oriental Medicine and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
- BioMedical Research Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Sung Ryul Lee
- Department of Convergence Biomedical Science, Cardiovascular and Metabolic Disease Center, College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Hyun Jin Baek
- Department of Oriental Medicine and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Jeong Eun Kwon
- Department of Oriental Medicine and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
- BioMedical Research Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Nam-In Baek
- Department of Oriental Medicine and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Tong Ho Kang
- Department of Oriental Medicine and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Hyunggun Kim
- Department of Biomechatronic Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Se Chan Kang
- Department of Oriental Medicine and Biotechnology, Kyung Hee University, Yongin 17104, Republic of Korea
- BioMedical Research Institute, Kyung Hee University, Yongin 17104, Republic of Korea
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Yan H, He L, Lv D, Yang J, Yuan Z. The Role of the Dysregulated JNK Signaling Pathway in the Pathogenesis of Human Diseases and Its Potential Therapeutic Strategies: A Comprehensive Review. Biomolecules 2024; 14:243. [PMID: 38397480 PMCID: PMC10887252 DOI: 10.3390/biom14020243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 02/12/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
JNK is named after c-Jun N-terminal kinase, as it is responsible for phosphorylating c-Jun. As a member of the mitogen-activated protein kinase (MAPK) family, JNK is also known as stress-activated kinase (SAPK) because it can be activated by extracellular stresses including growth factor, UV irradiation, and virus infection. Functionally, JNK regulates various cell behaviors such as cell differentiation, proliferation, survival, and metabolic reprogramming. Dysregulated JNK signaling contributes to several types of human diseases. Although the role of the JNK pathway in a single disease has been summarized in several previous publications, a comprehensive review of its role in multiple kinds of human diseases is missing. In this review, we begin by introducing the landmark discoveries, structures, tissue expression, and activation mechanisms of the JNK pathway. Next, we come to the focus of this work: a comprehensive summary of the role of the deregulated JNK pathway in multiple kinds of diseases. Beyond that, we also discuss the current strategies for targeting the JNK pathway for therapeutic intervention and summarize the application of JNK inhibitors as well as several challenges now faced. We expect that this review can provide a more comprehensive insight into the critical role of the JNK pathway in the pathogenesis of human diseases and hope that it also provides important clues for ameliorating disease conditions.
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Affiliation(s)
- Huaying Yan
- Department of Ultrasound, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; (H.Y.); (L.H.)
| | - Lanfang He
- Department of Ultrasound, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China; (H.Y.); (L.H.)
| | - De Lv
- Department of Endocrinology, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Jun Yang
- Cancer Center and State Key Laboratory of Biotherapy, Department of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China;
| | - Zhu Yuan
- Cancer Center and State Key Laboratory of Biotherapy, Department of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China;
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Zhao XY, Wang JQ, Neely GG, Shi YC, Wang QP. Natural compounds as obesity pharmacotherapies. Phytother Res 2024; 38:797-838. [PMID: 38083970 DOI: 10.1002/ptr.8083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/20/2023] [Accepted: 11/22/2023] [Indexed: 02/15/2024]
Abstract
Obesity has become a serious global public health problem, affecting over 988 million people worldwide. Nevertheless, current pharmacotherapies have proven inadequate. Natural compounds have garnered significant attention due to their potential antiobesity effects. Over the past three decades, ca. 50 natural compounds have been evaluated for the preventive and/or therapeutic effects on obesity in animals and humans. However, variations in the antiobesity efficacies among these natural compounds have been substantial, owing to differences in experimental designs, including variations in animal models, dosages, treatment durations, and administration methods. The feasibility of employing these natural compounds as pharmacotherapies for obesity remained uncertain. In this review, we systematically summarized the antiobesity efficacy and mechanisms of action of each natural compound in animal models. This comprehensive review furnishes valuable insights for the development of antiobesity medications based on natural compounds.
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Affiliation(s)
- Xin-Yuan Zhao
- Laboratory of Metabolism and Aging, School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Ji-Qiu Wang
- Department of Endocrinology and Metabolism, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Gregory Neely
- The Dr. John and Anne Chong Laboratory for Functional Genomics, Charles Perkins Centre and School of Life & Environmental Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Yan-Chuan Shi
- Diabetes and Metabolism Division, Garvan Institute of Medical Research, Darlinghurst, Sydney, NSW, Australia
- St Vincent's Clinical School, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Qiao-Ping Wang
- Laboratory of Metabolism and Aging, School of Pharmaceutical Sciences (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
- Medical Center for Comprehensive Weight Control, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Diabetology, Guangzhou Key Laboratory of Mechanistic and Translational Obesity Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Hong KH, Um MY, Ahn J, Ha TY. 6-Gingerol Ameliorates Adiposity and Inflammation in Adipose Tissue in High Fat Diet-Induced Obese Mice: Association with Regulating of Adipokines. Nutrients 2023; 15:3457. [PMID: 37571394 PMCID: PMC10421254 DOI: 10.3390/nu15153457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
We investigated the effects of 6-gingerol on adiposity and obesity-induced inflammation by focusing on the regulation of adipogenesis and adipokines in white adipose tissue (WAT) of diet-induced obese mice. C57BL/6 mice were fed a high-fat diet (HFD) containing 0.05% 6-gingerol for 8 weeks. 6-Gingerol supplementation significantly reduced body weight, WAT mass, serum triglyceride, leptin and insulin levels, and HOMA-IR in HFD-fed mice. Additionally, the size of adipocytes in epididymal fat pads was reduced in HFD-fed mice by 6-gingerol supplementation. 6-Gingerol reduced the mRNA and protein levels of adipogenesis-related transcription factors, such as SREBP-1, PPARγ, and C/EBPα in WAT. Furthermore, 6-gingerol suppressed the expression of lipogenesis-related genes, such as fatty acid synthase and CD36 in WAT. Adiponectin expression was significantly increased, whereas inflammatory adipokines (leptin, resistin, TNF-α, MCP-1, and PAI-1) and the macrophage marker F4/80 were significantly reduced in the WAT of HFD-fed mice by 6-gingerol supplementation. In conclusion, 6-gingerol effectively contributed to the alleviation of adiposity and inflammation in WAT, which is associated with the regulation of adipokines in diet-induced obese mice.
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Affiliation(s)
- Kyung Hee Hong
- Department of Food Science and Nutrition, Dongseo University, Busan 47011, Republic of Korea;
| | - Min Young Um
- Division of Food Functionality Research, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.Y.U.); (J.A.)
- Department of Food Biotechnology, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Jiyun Ahn
- Division of Food Functionality Research, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.Y.U.); (J.A.)
- Department of Food Biotechnology, University of Science & Technology, Daejeon 34113, Republic of Korea
| | - Tae Youl Ha
- Division of Food Functionality Research, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; (M.Y.U.); (J.A.)
- Department of Food Biotechnology, University of Science & Technology, Daejeon 34113, Republic of Korea
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Luo TT, Wu YJ, Yin Q, Chen WG, Zuo J. The Involvement of Glucose and Lipid Metabolism Alteration in Rheumatoid Arthritis and Its Clinical Implication. J Inflamm Res 2023; 16:1837-1852. [PMID: 37131409 PMCID: PMC10149064 DOI: 10.2147/jir.s398291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 04/19/2023] [Indexed: 05/04/2023] Open
Abstract
Obviously, immune cells like T cells and macrophages play a major role in rheumatoid arthritis (RA). On one hand, the breakdown of immune homeostasis directly induces systemic inflammation; on the other hand, these cells initiate and perpetuate synovitis and tissue damages through the interaction with fibroblast-like synoviocytes (FLS). In recent years, the pathological link between metabolic disorders and immune imbalance has received increasing attention. High energy demand of immune cells leads to the accumulation of metabolic byproducts and inflammatory mediators. They act on various metabolism-sensitive signal pathways as well as relevant transcription factors, such as HIF-1α, and STATs. These molecular events will impact RA-related effectors like circulating immune cells and joint-resident cells in return, allowing the continuous progression of systemic inflammation, arthritic manifestations, and life-threatening complications. In other words, metabolic complications are secondary pathological factors for the progression of RA. Therefore, the status of energy metabolism may be an important indicator to evaluate RA severity, and in-depth explorations of the mechanisms underlying the mystery of how RA-related metabolic disorders develop will provide useful clues to further clarify the etiology of RA, and inspire the discovery of new anti-rheumatic targets. This article reviews the latest research progress on the interactions between immune and metabolism systems in the context of RA. Great importance is attached to the changes in certain pathways controlling both immune and metabolism functions during RA progression.
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Affiliation(s)
- Ting-Ting Luo
- Department of Pharmacy, The Second Affiliated Hospital of Wannan Medical College, Wuhu, 241000, People’s Republic of China
- Xin’an Medical Research Center, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Yi-Jin Wu
- Department of Pharmacy, The Second Affiliated Hospital of Wannan Medical College, Wuhu, 241000, People’s Republic of China
- Xin’an Medical Research Center, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Qin Yin
- Department of Pharmacy, The Second Affiliated Hospital of Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Wen-Gang Chen
- Department of Pharmacy, The Second Affiliated Hospital of Wannan Medical College, Wuhu, 241000, People’s Republic of China
| | - Jian Zuo
- Xin’an Medical Research Center, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241000, People’s Republic of China
- Research Center of Integration of Traditional Chinese and Western Medicine, Wannan Medical College, Wuhu, 241000, People’s Republic of China
- Correspondence: Jian Zuo, Email
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Chen L, Wang H, Chen Z, Zhuo W, Xu R, Zeng X, He Q, Guan Y, Li H, Liu H. The Effect of Dried Ginger (Gan Jiang) on Stomach Energy Metabolism and the Related Mechanism in Rats Based on Metabonomics. Chem Biodivers 2022; 19:e202200757. [PMID: 36226702 DOI: 10.1002/cbdv.202200757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 10/10/2022] [Indexed: 11/10/2022]
Abstract
Dried ginger is a commonly used stomachic. Dried ginger is often used as a gastric protector to treat stomach-related diseases. However, the effect of dried ginger on energy metabolism in stomach tissue of rats under physiological condition has not been studied. In this study, different doses of water extract of dried ginger were given to rats for 4 weeks. The activity of Na+ -K+ -ATPase, Ca2+ -Mg2+ -ATPase, SDH (succinate dehydrogenase) enzyme, ATP content, mitochondrial metabolic rate and mitochondrial number in stomach tissue of rats were measured. Analysis of potential biomarkers related to the effect of dried ginger on energy metabolism in stomach tissue of rats by metabonomics, and their metabolic pathways were also analyzed. The results revealed that there was no significant difference in Na+ -K+ -ATPase in high-dose group (GJH), medium-dose group (GJM) and low-dose group (GJL) compared to the Control group. The Ca2+ -Mg2+ -ATPase activity was significantly increased in stomach tissue of GJH group and GJM group, but there were no significant changes in stomach tissue of GJL group. The SDH activity and the ATP levels were significantly increased in stomach tissue of GJH group, GJM group and GJL group. The mitochondrial metabolic rate was significantly increased in GJL group, but there was no significant change in GJM group and was inhibited in GJH group. These effects might be mediated by arginine biosynthesis, glutathione metabolism, arachidonic acid metabolism, glycerophospholipid metabolism, arginine and proline metabolism, purine metabolism pathway.
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Affiliation(s)
- Limei Chen
- The Affiliated Hospital of Jiangxi University of Chinese Medicine, Nanchang, 330004, Jiangxi, China
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
- Institute of Chinese Materia Medica China Academy of Chinese Medical, Dongcheng, 100700, Beijing, China
| | - Hui Wang
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
- Qidong People's Hospital, Qidong, 226200, Jiangsu, China
| | - Zhao Chen
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
| | - Wenhao Zhuo
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
| | - Ruixiang Xu
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
| | - Xin Zeng
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
| | - Qirui He
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
| | - Yongmei Guan
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
| | - Hui Li
- Institute of Chinese Materia Medica China Academy of Chinese Medical, Dongcheng, 100700, Beijing, China
| | - Hongning Liu
- Jiangxi University of Chinese Medicine, Nanchang, 330006, Jiangxi, China
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Devkota HP, Paudel KR, Hassan MM, Dirar AI, Das N, Adhikari-devkota A, Echeverría J, Logesh R, Jha NK, Singh SK, Hansbro PM, Chan Y, Chellappan DK, Dua K. Bioactive Compounds from Zingiber montanum and Their Pharmacological Activities with Focus on Zerumbone. Applied Sciences 2021; 11:10205. [DOI: 10.3390/app112110205] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The genus Zingiber consists of about 85 species and many of these species are used as food, spices, and medicines. One of the species, Zingiber montanum (J. Koenig) Link ex A. Dietr. is native to Southeast Asia and has been extensively used as traditional medicines and food. The aim of this review was to collect and critically analyze the scientific information about the bioactive compounds and pharmacological activities of Z. montanum with focus on one of the main components, zerumbone (ZER). Various studies have reported the analysis of volatile constituents of the essential oils from Z. montanum. Similarly, many phenylbutanoids, flavonoids and terpenes were also isolated from rhizomes. These essential oils, extracts and compounds showed potent antimicrobial, anti-inflammatory and antioxidant activities among others. Zerumbone has been studied widely for its anticancer, anti-inflammatory, and other pharmacological activities. Future studies should focus on the exploration of various pharmacological activities of other compounds including phenylbutanoids and flavonoids. Bioassay guided isolation may result in the separation of other active components from the extracts. Z. montanum could be a promising source for the development of pharmaceutical products and functional foods.
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Ahn J, Lee H, Jung CH, Ha SY, Seo HD, Kim YI, Ha T. 6-Gingerol Ameliorates Hepatic Steatosis via HNF4α/miR-467b-3p/GPAT1 Cascade. Cell Mol Gastroenterol Hepatol 2021; 12:1201-1213. [PMID: 34139323 PMCID: PMC8445893 DOI: 10.1016/j.jcmgh.2021.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 06/10/2021] [Accepted: 06/10/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND & AIMS The development of nonalcoholic fatty liver disease (NAFLD) can be modulated by microRNAs (miRNA). Dietary polyphenols modulate the expression of miRNA such as miR-467b-3p in the liver. In addition, 6-gingerol (6-G), the functional polyphenol of ginger, has been reported to ameliorate hepatic steatosis; however, the exact mechanism involved and the role of miRNA remain elusive. In this study, we assessed the role of miR-467b-3p in the pathogenesis of hepatic steatosis and the regulation of miR-467b-3p by 6-G through the hepatocyte nuclear factor 4α (HNF4α). METHODS miR-467b-3p expression was measured in free fatty acid (FFA)-treated hepatocytes or liver from high-fat diet (HFD)-fed mice. Gain- or loss-of-function of miR-467b-3p was induced using miR-467b-3p-specific miRNA mimic or miRNA inhibitor, respectively. 6-G was exposed to FFA-treated cells and HFD-fed mice. The HNF4α/miR-467b-3p/GPAT1 axis was measured in mouse and human fatty liver tissues. RESULTS We found that miR-467b-3p was down-regulated in liver tissues from HFD-fed mice and in FFA-treated Hepa1-6 cells. Overexpression of miR-467b-3p decreased intracellular lipid accumulation in FFA-treated hepatocytes and mitigated hepatic steatosis in HFD-fed mice via negative regulation of glycerol-3-phosphate acyltransferase-1 (GPAT1). In addition, miR-467b-3p up-regulation by 6-G was observed. 6-G inhibited FFA-induced lipid accumulation and mitigated hepatic steatosis. Moreover, it increased the transcriptional activity of HNF4α, resulting in the increase of miR-467b-3p and subsequent decrease of GPAT1. HNF4α/miR-467b-3p/GPAT1 signaling also was observed in human samples with hepatic steatosis. CONCLUSIONS Our findings establish a novel mechanism by which 6-G improves NAFLD. This suggests that targeting of the HNF4α/miR-467b-3p/GPAT1 cascade may be used as a potential therapeutic strategy to control NAFLD.
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Affiliation(s)
- Jiyun Ahn
- Metabolism and Nutrition Research Group, Korea Food Research Institute, Wanju-gun, Korea,Division of Food Biotechnology, University of Science and Technology, Daejeon, Korea,Correspondence Address correspondence to: Jiyun Ahn, PhD, DVM, Metabolism and Nutrition Research Group, Korea Food Research Institute, 245, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Korea.
| | - Hyunjung Lee
- Metabolism and Nutrition Research Group, Korea Food Research Institute, Wanju-gun, Korea
| | - Chang Hwa Jung
- Metabolism and Nutrition Research Group, Korea Food Research Institute, Wanju-gun, Korea,Division of Food Biotechnology, University of Science and Technology, Daejeon, Korea
| | - Seung Yeon Ha
- Department of Pathology, Gachon University of Medicine and Science, Incheon, Korea
| | - Hyo-Deok Seo
- Metabolism and Nutrition Research Group, Korea Food Research Institute, Wanju-gun, Korea
| | - Young In Kim
- Metabolism and Nutrition Research Group, Korea Food Research Institute, Wanju-gun, Korea,Department of Food Science and Technology, Jeonbuk National University, Jeonju-si, South Korea
| | - Taeyoul Ha
- Metabolism and Nutrition Research Group, Korea Food Research Institute, Wanju-gun, Korea,Division of Food Biotechnology, University of Science and Technology, Daejeon, Korea,Correspondence Address correspondence to: Jiyun Ahn, PhD, DVM, Metabolism and Nutrition Research Group, Korea Food Research Institute, 245, Nongsaengmyeong-ro, Iseo-myeon, Wanju-gun, Jeollabuk-do 55365, Korea.
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Kim B, Kim HJ, Cha YS. The protective effects of steamed ginger on adipogenesis in 3T3-L1 cells and adiposity in diet-induced obese mice. Nutr Res Pract 2021; 15:279-293. [PMID: 34093970 PMCID: PMC8155221 DOI: 10.4162/nrp.2021.15.3.279] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 10/30/2020] [Accepted: 11/25/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND/OBJECTIVES The steamed ginger has been shown to have antioxidative effects and a protective effect against obesity. In the present study, we investigated the effects of ethanolic extract of steamed ginger (SGE) on adipogenesis in 3T3-L1 preadipocytes and diet-induced obesity (DIO) mouse model. MATERIALS/METHODS The protective effects of SGE on adipogenesis were examined in 3T3-L1 adipocytes by measuring lipid accumulations and genes involved in adipogenesis. Male C57BL/6J mice were fed a normal diet (ND, 10% fat w/w), a high-fat diet (HFD, 60% fat w/w), and HFD supplemented with either 40 mg/kg or 80 mg/kg of SGE for 12 weeks. Serum chemistry was measured, and the expression of genes involved in lipid metabolism was determined in the adipose tissue. Histological analysis and micro-computed tomography were performed to identify lipid accumulations in epididymal fat pads. RESULTS In 3T3-L1 cells, SGE significantly decreased lipid accumulation, with concomitant decreases in the expression of adipogenesis-related genes. SGE significantly attenuated the increase in body, liver, and epididymal adipose tissue weights by HFD. Serum total cholesterol and triglyceride levels were significantly lower in SGE fed groups compared to HFD. In adipose tissue, SGE significantly decreased adipocyte size than that of HFD and altered adipogenesis-related genes. CONCLUSIONS In conclusion, steamed ginger exerted anti-obesity effects by regulating genes involved in adipogenesis and lipogenesis in 3T3-L1 cell and epididymal adipose tissue of DIO mice.
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Affiliation(s)
- Bohkyung Kim
- Department of Food Science and Nutrition, Pusan National University, Busan 46264, Korea
| | - Hee-Jeong Kim
- Department of Food Science and Human Nutrition and Obesity Research Center, Jeonbuk National University, Jeonju 54896, Korea
| | - Youn-Soo Cha
- Department of Food Science and Human Nutrition and Obesity Research Center, Jeonbuk National University, Jeonju 54896, Korea
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10
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Affiliation(s)
- Jingwen Liu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiaoxian Cao
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiming Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Fujiang Guo
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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11
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Hattori H, Mori T, Shibata T, Kita M, Mitsunaga T. 6-Paradol Acts as a Potential Anti-obesity Vanilloid from Grains of Paradise. Mol Nutr Food Res 2021; 65:e2100185. [PMID: 33793045 DOI: 10.1002/mnfr.202100185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Indexed: 12/22/2022]
Abstract
SCOPE Grains of Paradise (GOP), the seeds of Aframomum melegueta, has anti-obesity effects. However, the mechanisms underlying the effects remain unclear. METHODS AND RESULTS This study sets up to study the anti-obesity impact and homeostatic effects of 6-paradol, a major vanilloid found in GOP, and investigates the physiological outputs and the lipometabolism-related gene in fat and liver in high-fat-induced obese mice with a comparison with structurally similar vanilloids (6-gingerol and 6-shogaol). The vanilloids are synthesized in adequate quantities for performing animal experiments and orally administered to 6-week-old male mice over 2 weeks. This study found that 6-paradol decreased body weight gain and visceral and subcutaneous fats in 2 weeks, whereas 6-gingerol and 6-shogaol have no effect. Additionally, 6-paradol suppresses the hepatic cholesterol and triglyceride and significantly decreases the gene expression related to fatty acid synthesis, lipid transportation, and adipocyte differentiation in both liver and adipose tissue. Moreover, phosphorylation of AMP-activated protein kinase (AMPK) that greatly contributes to lipometabolism is promoted by 6-gingerol but not 6-paradol. CONCLUSION These results suggest that 6-paradol regulates several obesity-related genes in an AMPK-independent manner. Therefore, it could be the principal active vanilloid in GOP giving it anti-obesity properties with a different mechanism.
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Affiliation(s)
- Hiroyuki Hattori
- Asian Satellite Campuses Institute, Nagoya University, Nagoya, 464-8601, Japan.,Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Takashi Mori
- Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
| | - Takahiro Shibata
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Masaki Kita
- Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya, 464-8601, Japan
| | - Tohru Mitsunaga
- Faculty of Applied Biological Sciences, Gifu University, Gifu, 501-1193, Japan
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Garg R, Kumariya S, Katekar R, Verma S, Goand UK, Gayen JR. JNK signaling pathway in metabolic disorders: An emerging therapeutic target. Eur J Pharmacol 2021; 901:174079. [PMID: 33812885 DOI: 10.1016/j.ejphar.2021.174079] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 02/08/2023]
Abstract
Metabolic Syndrome is a multifactorial disease associated with increased risk of cardiovascular disorders, type 2 diabetes mellitus, fatty liver disease, etc. Various stress stimuli such as reactive oxygen species, endoplasmic reticulum stress, mitochondrial dysfunction, increased cytokines, or free fatty acids are known to aggravate progressive development of hyperglycemia and hyperlipidemia. Although the exact mechanism contributing to altered metabolism is unclear. Evidence suggests stress kinase role to be a crucial one in metabolic syndrome. Stress kinase, c-jun N-terminal kinase activation (JNK) is involved in various metabolic manifestations including obesity, insulin resistance, fatty liver disease as well as cardiometabolic disorders. It emerged as a foremost mediator in regulating metabolism in the liver, skeletal muscle, adipose tissue as well as pancreatic β cells. It has three isoforms each having a unique and tissue-specific role in altered metabolism. Current findings based on genetic manipulation or chemical inhibition studies identified JNK isoforms to play a central role in the regulation of whole-body metabolism, suggesting it to be a novel therapeutic target. Hence, it is imperative to elucidate its role in metabolic syndrome onset and progression. The purpose of this review is to elucidate in vitro and in vivo implications of JNK signaling along with the therapeutic strategy to inhibit specific isoform. Since metabolic syndrome is an array of diseases and complex pathway, carefully examining each tissue will be important for specific treatment strategies.
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Affiliation(s)
- Richa Garg
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sanjana Kumariya
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India
| | - Roshan Katekar
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Saurabh Verma
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Umesh K Goand
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Jiaur R Gayen
- Pharmaceutics & Pharmacokinetics, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Pharmacology Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Lucknow, 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Fagundes GBP, Rodrigues AMDS, Martins LB, Monteze NM, Correia MITD, Teixeira AL, Ferreira AVM. Acute effects of dry extract of ginger on energy expenditure in eutrophic women: A randomized clinical trial. Clin Nutr ESPEN 2021; 41:168-174. [PMID: 33487261 DOI: 10.1016/j.clnesp.2020.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 09/23/2020] [Accepted: 10/01/2020] [Indexed: 11/17/2022]
Abstract
BACKGROUND & AIMS The thermic effect of food (TEF) is one of the components of total energy expenditure (TEE). Some bioactive compounds present in food could be useful to increase TEE. In this context, ginger has been extensively used as a thermogenic food despite no clear effect has been demonstrated yet. Herein, we evaluated the acute thermogenic effect of gingerol, a bioactive compound present in ginger, in healthy women. METHODS We carried out a randomized double-masked, cross-over and placebo-controlled clinical trial with 20 healthy eutrophic women. Anthropometric, body composition, indirect calorimetry and clinical variables were collected at baseline and throughout the intervention phase. A standardized breakfast was offered together with two dry extract of ginger capsules (5% gingerol) or a placebo (cellulose). Indirect calorimetry, blood pressure, heart rate, axillary temperature and blood collection were assessed at baseline and thereafter, at 30, 60, 120, 180 and 240 min postprandial. The analyses were repeated with a minimum of seven days' washout period. RESULTS Ginger intake did not increase the TEF of a standardized breakfast compared to the placebo. Oxygen consumption, respiratory quotient, blood pressure, heart rate, axillary temperature and metabolic profile were not different as well. CONCLUSIONS Our data show that gingerol did not modify the acute TEF in healthy women. More studies in human subjects, using different concentrations of gingerol, administration methods and intervention type (chronic effect) are necessary to clarify the putative thermogenic effect of ginger. Registered at ClinicalTrials.gov (Thermogenic Effect of Ginger - NCT03089593).
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Affiliation(s)
- Gabriela Barbosa Pires Fagundes
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais (UFMG), Av. Alfredo Balena, 190 Santa Efigênia CEP 30130100, Belo Horizonte, Minas Gerais, Brazil.
| | - Ana Maria Dos Santos Rodrigues
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais (UFMG), Av. Alfredo Balena, 190 Santa Efigênia CEP 30130100, Belo Horizonte, Minas Gerais, Brazil.
| | - Laís Bhering Martins
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais (UFMG), Av. Alfredo Balena, 190 Santa Efigênia CEP 30130100, Belo Horizonte, Minas Gerais, Brazil.
| | - Nayara Mussi Monteze
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais (UFMG), Av. Alfredo Balena, 190 Santa Efigênia CEP 30130100, Belo Horizonte, Minas Gerais, Brazil.
| | - Maria Isabel Toulson Davisson Correia
- Department of Surgery, Medical School, Universidade Federal de Minas Gerais (UFMG), Av. Alfredo Balena, 170 Santa Efigênia CEP 30130100, Belo Horizonte, Minas Gerais, Brazil.
| | - Antônio Lúcio Teixeira
- Interdisciplinary Laboratory of Medical Investigation, Medical School, Universidade Federal de Minas Gerais (UFMG), Av. Alfredo Balena, 170 Santa Efigênia CEP 30130100, Belo Horizonte, Minas Gerais, Brazil.
| | - Adaliene Versiani Matos Ferreira
- Department of Nutrition, Nursing School, Universidade Federal de Minas Gerais (UFMG), Av. Alfredo Balena, 190 Santa Efigênia CEP 30130100, Belo Horizonte, Minas Gerais, Brazil.
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Jugran AK, Rawat S, Devkota HP, Bhatt ID, Rawal RS. Diabetes and plant-derived natural products: From ethnopharmacological approaches to their potential for modern drug discovery and development. Phytother Res 2020; 35:223-245. [PMID: 32909364 DOI: 10.1002/ptr.6821] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 06/08/2020] [Accepted: 07/02/2020] [Indexed: 02/06/2023]
Abstract
Diabetes is a disease of serious concern faced by the health care industry today. Primary diabetes mellitus and its complications are still costly to manage with modern drugs. Extensive research on the screening of anti-diabetic agents in past decades established natural products as one of the major potential sources of drug discovery. However, only a few drugs of plant origin have been scientifically validated. Therefore, the development of new anti-diabetic drugs is of great demand. Hence, natural products could be explored as potential anti-diabetic drugs. Natural plants derived extracts and molecules like berberine, ginsenosides, curcumin, stevioside, gingerols, capsaicin, catechins, simple phenolic compounds, anthocyanins, resveratrol, genistein and hesperidin obtained from different species are used for curing diabetes and found to possess different action mechanisms. In this review, the importance of medicinal plants and their active constituents for anti-diabetic agents are described. The present study also emphasized the importance of diabetes control, reduction in its complications and use of the anti-diabetic agents. The detailed action mechanism of these extracts/compounds for their activities are also described. However, the anti-diabetic drugs from plant origin require scientific validation through animal and clinical studies to exploit in terms of modern commercial medicines.
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Affiliation(s)
- Arun K Jugran
- Garhwal Regional Centre, G. B. Pant National Institute of Himalayan Environment (NIHE), Srinagar, Uttarakhand, India
| | - Sandeep Rawat
- Sikkim Regional Centre, G. B. Pant National Institute of Himalayan Environment (NIHE), Gangtok, Sikkim, India
| | - Hari P Devkota
- Department of Instrumental Analysis, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Indra D Bhatt
- Center for Biodiversity Conservation and Management (CBCM), G. B. Pant National Institute of Himalayan Environment (NIHE), Kosi-Katarmal, Almora, Uttarakhand, India
| | - Ranbeer S Rawal
- Center for Biodiversity Conservation and Management (CBCM), G. B. Pant National Institute of Himalayan Environment (NIHE), Kosi-Katarmal, Almora, Uttarakhand, India
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Singh YP, Girisa S, Banik K, Ghosh S, Swathi P, Deka M, Padmavathi G, Kotoky J, Sethi G, Fan L, Mao X, Halim CE, Arfuso F, Kunnumakkara AB. Potential application of zerumbone in the prevention and therapy of chronic human diseases. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.12.020] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Abubakar IB, Malami I, Yahaya Y, Sule SM. A review on the ethnomedicinal uses, phytochemistry and pharmacology of Alpinia officinarum Hance. J Ethnopharmacol 2018; 224:45-62. [PMID: 29803568 DOI: 10.1016/j.jep.2018.05.027] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 05/18/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Alpinia officinarum Hance is a perennial plant that has been traditionally used for many decades to treat several ailments including inflammation, pain, stomach-ache, cold, amongst others. Pharmacological studies over the years have demonstrated remarkable bioactivities that could be further explored for development of new therapeutic agents against various ailments. AIM OF THE STUDY The paper critically reviewed the ethno-medicinal uses, pharmacology, and phytochemistry of A. officinarum. METHODS Keywords including A. officinarum and its synonyms were searched using electronic databases including ISI web of knowledge, Science direct, Scopus, PubMed, Google scholar and relevant database for Masters and Doctoral theses. RESULTS A. officinarum is prepared in Asia, Turkey, Morocco and Iran as a decoction, infusion or juice as a single preparation or in combination with other herbs, food or drinks for the treatment of general health problems including cold, inflammation, digestive disorders, etc. Pharmacological studies revealed the potent in vitro and in vivo bioactivities of various parts of A. officinarum that include anti-inflammatory, cytotoxicity, homeostasis, lipid regulation, antioxidant, antiviral, antimicrobial, antiosteoporosis, etc. Over 90 phytochemical constituents have been identified and isolated from A. officinarum comprising vastly of phenolic compounds especially diarylheptanoids isolated from the rhizome and considered the most active bioactive components. CONCLUSION In vitro and in vivo studies have confirmed the potency of A. officinarum. However, further studies are required to establish the mechanisms mediating its bioactivities in relation to the medicinal uses as well as investigating any potential toxicity for future clinical studies.
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Affiliation(s)
- Ibrahim Babangida Abubakar
- Department of Biochemistry, Faculty of Science, Kebbi State University of Science and Technology, PMB 1144 Aliero, Nigeria.
| | - Ibrahim Malami
- Department of Pharmacognosy and Ethnopharmacy, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, PMB 2346 Sokoto, Nigeria.
| | - Yakubu Yahaya
- Department of Pure and Applied Chemistry, Faculty of Science, Kebbi State University of Science and Technology, PMB 1144 Aliero, Nigeria.
| | - Sahabi Manga Sule
- Department of Biological Sciences, Faculty of Science, Kebbi State University of Science and Technology, PMB 1144 Aliero, Nigeria.
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Ebrahimzadeh Attari V, Malek Mahdavi A, Javadivala Z, Mahluji S, Zununi Vahed S, Ostadrahimi A. A systematic review of the anti-obesity and weight lowering effect of ginger (Zingiber officinale Roscoe) and its mechanisms of action. Phytother Res 2018; 32:577-585. [PMID: 29193411 DOI: 10.1002/ptr.5986] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/30/2017] [Accepted: 10/23/2017] [Indexed: 01/10/2023]
Abstract
Recently, the beneficial effects of ginger on obesity is taken into consideration. Albeit, it seems that the anti-obesity effect of ginger and its mechanism of action has not yet been reviewed. Therefore, the aim of this study was to systematically review the effect of Zingiber officinale Roscoe on obesity management. Databases including PubMed, Scopus, Google scholar, and Science Direct were searched from 1995 until May 2017 using the definitive keywords. Searching was limited to articles with English language. All of the relevant human and animal studies and also in vitro studies were included. Review articles, abstract in congress, and also other varieties of ginger were excluded. Eligibility of included articles were evaluated by 3 reviewers, which also extracted data. Articles were critically assessed individually for possible risk of bias. Twenty-seven articles (6 in vitro, 17 animal, and 4 human studies) were reviewed. Most of the experimental studies supported the weight lowering effect of ginger extract or powder in obese animal models, whereas the results of the available limited clinical studies showed no changes or slight changes of anthropometric measurements and body composition in subjects with obesity. Ginger could modulate obesity through various potential mechanisms including increasing thermogenesis, increasing lipolysis, suppression of lipogenesis, inhibition of intestinal fat absorption, and controlling appetite. This review article provides some convincing evidence to support the efficacy of ginger in obesity management and demonstrates the importance of future clinical trials.
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Affiliation(s)
- Vahideh Ebrahimzadeh Attari
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Maraghe University of Medical Sciences, Maraghe, Iran
| | - Aida Malek Mahdavi
- Connective Tissue Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zeinab Javadivala
- Department of Health Education & Promotion, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Mahluji
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Alireza Ostadrahimi
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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Ahn J, Lee H, Jung CH, Choi WH, Ha TY. Zerumbone ameliorates high-fat diet-induced adiposity by restoring AMPK-regulated lipogenesis and microRNA-146b/SIRT1-mediated adipogenesis. Oncotarget 2018; 8:36984-36995. [PMID: 28445161 PMCID: PMC5514886 DOI: 10.18632/oncotarget.16974] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 03/14/2017] [Indexed: 11/25/2022] Open
Abstract
Obesity is characterized by increased fat mass, as adipose tissue serves as a storage site for excess energy from food consumption. In obesity, altered lipid metabolism of adipose tissue, characterized by fatty acid uptake, de novo lipogenesis, and lipolysis, are induced. In this study, we examined the effect of zerumbone, a major sesquiterpene from wild ginger, on high-fat diet (HF)-induced obesity and dysregulated lipid metabolism in the white adipose tissues (WAT) of C57BL/6N mice. Dietary supplementation with zerumbone ameliorated HF-induced obesity and improved impaired lipid metabolism in WAT. Zerumbone additionally induced AMPK activation and phosphorylation of acetyl-CoA carboxylase, and effectively decreased adipogenic differentiation, in a concentration-dependent manner in the 3T3-L1 cells. Dysregulated microRNAs in obese WAT and adipocytes were examined, and zerumbone treatment was found to effectively reverse the robust upregulation of microRNA-146b. An increase in the levels of SIRT1, the direct target of microRNA-146b, was observed in zerumbone-treated differentiated adipocytes. This increase was additionally observed in WAT of zerumbone-supplemented mice. The antiadipogenic effect of zerumbone was found to be abolished in SIRT1-silenced 3T3-L1 cells. The increase in SIRT1 levels induced by zerumbone led to deacetylation of FOXO1 and PGC1α in WAT and differentiated 3T3-L1 cells. These findings indicate that zerumbone ameliorated diet-induced obesity and inhibited adipogenesis, and that the underlying mechanisms involved AMPK and the microRNA-146b/SIRT1 pathway. Zerumbone may represent a potential therapeutic candidate for the prevention and treatment of metabolic diseases, particularly obesity.
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Affiliation(s)
- Jiyun Ahn
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Korea.,Division of Food Biotechnology, University of Science & Technology, Daejeon, Korea
| | - Hyunjung Lee
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Korea
| | - Chang Hwa Jung
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Korea.,Division of Food Biotechnology, University of Science & Technology, Daejeon, Korea
| | - Won Hee Choi
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Korea
| | - Tae Youl Ha
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Korea.,Division of Food Biotechnology, University of Science & Technology, Daejeon, Korea
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Abstract
Background: Type 2 diabetes is a growing public health problem and is associated with increased morbidity and mortality. The worldwide prevalence of type 2 diabetes is rising. Polyphenols, such as flavonoids, phenolic acid, and stilbens, are a large and heterogeneous group of phytochemicals in plant-based foods. In this review, we aimed at assessing the studies on polyphenols and diabetes management. Methods: A literature search in the PubMed, EMBASE, Scopus, and ISI Web of Science databases was conducted to identify relevant studies published from 1986 to Jan 2017. Results: Several animal models and a limited number of human studies have revealed that polyphenols decrease hyperglycemia and improve acute insulin secretion and insulin sensitivity. The possible mechanisms include decrease in glucose absorption in the intestine, inhibition of carbohydrates digestion, stimulation of insulin secretion, modulation of glucose release from the liver, activation of insulin receptors and glucose uptake in insulin-sensitive tissues, modulation of intracellular signaling pathways, and gene expression. Conclusion: Growing evidence indicates that various dietary polyphenols may influence blood glucose at different levels and may also help control and prevent diabetes complication. However, we still need more clinical trials to determine the effects of polyphenols- rich foods, their effective dose, and mechanisms of their effects in managing diabetes.
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Affiliation(s)
- Naheed Aryaeian
- Research Center for Environmental Health Technology, Iran University of Medical Sciences and Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Sara Khorshidi Sedehi
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Tahereh Arablou
- Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
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Ebrahimzadeh Attari V, Ostadrahimi A, Asghari Jafarabadi M, Mehralizadeh S, Mahluji S. Changes of serum adipocytokines and body weight following Zingiber officinale supplementation in obese women: a RCT. Eur J Nutr 2016; 55:2129-36. [PMID: 26318445 DOI: 10.1007/s00394-015-1027-6] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 08/19/2015] [Indexed: 12/15/2022]
Abstract
PURPOSE The present randomized, double-blind, placebo-controlled study aimed to evaluate the effect of Zingiber officinale (ginger) consumption on some metabolic and clinical features of obesity. METHODS Eighty eligible obese women (aged 18-45 years) were randomly assigned to either ginger or placebo groups (receiving 2 g/day of ginger powder or corn starch as two 1 g tablets) for 12 weeks. Body mass index (BMI) and body composition were assessed every 4 weeks, and serum levels of leptin, adiponectin, resistin, insulin and glucose were determined before and after intervention. The homeostasis model assessment of insulin resistance (HOMA-IR) and quantitative insulin sensitivity check index (QUICKI) were also calculated. RESULTS Ginger consumption significantly decreased BMI, serum insulin and HOMA-IR index, along with increasing QUICKIs as compared to the placebo. Moreover, significant reductions in serum leptin, resistin and glucose were observed in both groups, especially in ginger group with nonsignificant differences between groups. The body composition and serum levels of adiponectin were not significantly changed in study groups. CONCLUSION In conclusion, our findings demonstrate a minor beneficial effect of 2 g ginger powder supplementation for 12 weeks on weight loss and some metabolic features of obesity. However, given the lack of data in this area, ongoing clinical trials are needed to further explore ginger's effectiveness.
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Affiliation(s)
| | - Alireza Ostadrahimi
- Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | | | - Sajjad Mehralizadeh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Sepideh Mahluji
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
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Miyamoto M, Matsuzaki K, Katakura M, Hara T, Tanabe Y, Shido O. Oral intake of encapsulated dried ginger root powder hardly affects human thermoregulatory function, but appears to facilitate fat utilization. Int J Biometeorol 2015; 59:1461-74. [PMID: 25875447 DOI: 10.1007/s00484-015-0957-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 01/05/2015] [Accepted: 01/05/2015] [Indexed: 06/04/2023]
Abstract
The present study investigated the impact of a single oral ingestion of ginger on thermoregulatory function and fat oxidation in humans. Morning and afternoon oral intake of 1.0 g dried ginger root powder did not alter rectal temperature, skin blood flow, O2 consumption, CO2 production, and thermal sensation and comfort, or induce sweating at an ambient temperature of 28 °C. Ginger ingestion had no effect on threshold temperatures for skin blood flow or thermal sweating. Serum levels of free fatty acids were significantly elevated at 120 min after ginger ingestion in both the morning and afternoon. Morning ginger intake significantly reduced respiratory exchange ratios and elevated fat oxidation by 13.5 % at 120 min after ingestion. This was not the case in the afternoon. These results suggest that the effect of a single oral ginger administration on the peripheral and central thermoregulatory function is miniscule, but does facilitate fat utilization although the timing of the administration may be relevant.
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Affiliation(s)
- Mayumi Miyamoto
- Fundamental Nursing, School of Nursing, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan.
- Department of Environmental Physiology, School of Medicine, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan.
| | - Kentaro Matsuzaki
- Department of Environmental Physiology, School of Medicine, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan
| | - Masanori Katakura
- Department of Environmental Physiology, School of Medicine, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan
| | - Toshiko Hara
- Department of Environmental Physiology, School of Medicine, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan
| | - Yoko Tanabe
- Department of Environmental Physiology, School of Medicine, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan
- Department of Biosignaling and Radioisotope Experiment, Center for Integrated Research in Science, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan
| | - Osamu Shido
- Department of Environmental Physiology, School of Medicine, Shimane University, 89-1 Enya-cho, Izumo, 693-8501, Japan
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Saravanan G, Ponmurugan P, Deepa MA, Senthilkumar B. Anti-obesity action of gingerol: effect on lipid profile, insulin, leptin, amylase and lipase in male obese rats induced by a high-fat diet. J Sci Food Agric 2014; 94:2972-2977. [PMID: 24615565 DOI: 10.1002/jsfa.6642] [Citation(s) in RCA: 103] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 01/15/2014] [Accepted: 03/02/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND Obesity represents a rapidly growing threat to the health of populations and diet intervention has been proposed as one of the strategies for weight loss. Ginger and its constituents have been used for their anti-flatulent, expectorant and appetising properties and they are reported to possess gastro-protective and cholesterol-lowering properties. The present study investigated the effects of gingerol on the changes in body weight, serum glucose, insulin, insulin resistance and lipid profile in plasma and liver as well as on the activity of amylase, lipase and leptin in high-fat diet (HFD)-induced obese rats. RESULTS HFD-induced obese rats were treated orally with gingerol (25, 50 and 75 mg kg(-1) ) once daily for 30 days. A lorcaserin-treated group (10 mg kg(-1) ) was included for comparison. The levels of body weight, glucose, lipid profile and insulin, insulin resistance, leptin, amylase and lipase were increased significantly (P < 0.05) in HFD rats. Rats treated with gingerol and fed a HFD showed significantly (P < 0.05) decreased glucose level, body weight, leptin, insulin, amylase, lipase plasma and tissue lipids when compared to normal control. The effect at a dose of 75 mg kg(-1) of gingerol was more pronounced than that of the dose 25 mg kg(-1) and 50 mg kg(-1) . The lorcaserin-treated group also manifested similar effects to those of gingerol. CONCLUSION These findings suggested that ginger supplementation suppresses obesity induced by a high fat diet and it might be a promising adjuvant therapy for the treatment of obesity and its complications.
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Affiliation(s)
- Ganapathy Saravanan
- Department of Biochemistry, Centre for Biological Science, K.S. Rangasamy College of Arts and Science, Thokkavadi, Tiruchengode, Tamil Nadu, 637215, India
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Wrzesinski K, R León I, Kulej K, Sprenger RR, Bjørndal B, Christensen BJ, Berge RK, Jensen ON, Rogowska-Wrzesinska A. Proteomics identifies molecular networks affected by tetradecylthioacetic acid and fish oil supplemented diets. J Proteomics 2013; 84:61-77. [PMID: 23568020 DOI: 10.1016/j.jprot.2013.03.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Revised: 03/08/2013] [Accepted: 03/11/2013] [Indexed: 12/12/2022]
Abstract
UNLABELLED Fish oil (FO) and tetradecylthioacetic acid (TTA) - a synthetic modified fatty acid have beneficial effects in regulating lipid metabolism. In order to dissect the mechanisms underlying the molecular action of those two fatty acids we have investigated the changes in mitochondrial protein expression in a long-term study (50weeks) in male Wistar rats fed 5 different diets. The diets were as follows: low fat diet; high fat diet; and three diets that combined high fat diet with fish oil, TTA or combination of those two as food supplements. We used two different proteomics techniques: a protein centric based on 2D gel electrophoresis and mass spectrometry, and LC-MS(E) based peptide centric approach. As a result we provide evidence that fish oil and TTA modulate mitochondrial metabolism in a synergistic manner yet the effects of TTA are much more dramatic. We demonstrate that fatty acid metabolism; lipid oxidation, amino acid metabolism and oxidative phosphorylation pathways are involved in fish oil and TTA action. Evidence for the involvement of PPAR mediated signalling is provided. Additionally we postulate that down regulation of components of complexes I and II contributes to the strong antioxidant properties of TTA. BIOLOGICAL SIGNIFICANCE This study for the first time explores the effect of fish oil and TTA - tetradecyl-thioacetic acid and the combination of those two as diet supplements on mitochondria metabolism in a comprehensive and systematic manner. We show that fish oil and TTA modulate mitochondrial metabolism in a synergistic manner yet the effects of TTA are much more dramatic. We demonstrate in a large scale that fatty acid metabolism and lipid oxidation are affected by fish oil and TTA, a phenomenon already known from more directed molecular biology studies. Our approach, however, shows additionally that amino acid metabolism and oxidative phosphorylation pathways are also strongly affected by TTA and also to some extent by fish oil administration. Strong evidence for the involvement of PPAR mediated signalling is provided linking the different metabolic effects. The global and systematic viewpoint of this study compiles many of the known phenomena related to the effects of fish oil and fatty acids giving a solid foundation for further exploratory and more directed studies of the mechanisms behind the beneficial and detrimental effects of fish oil and TTA diet supplementation. This work is already a second article in a series of studies conducted using this model of dietary intervention. In the previous study (Vigerust et al., [21]) the effects of fish oil and TTA on the plasma lipids and cholesterol levels as well as key metabolic enzymes in the liver have been studied. In an ongoing study more work is being done to explore in detail for example the link between the down regulation of the components of the respiratory chain (observed in this study) and the strong antioxidant effects of TTA. The reference diet in this study has been designed to mimic an unhealthy - high fat diet that is thought to contribute to the development of metabolic syndrome - a condition that is strongly associated with diabetes, obesity and heart failure. Fish oil and TTA are known to have beneficial effects for the fatty acid metabolism and have been shown to alleviate some of the symptoms of the metabolic syndrome. To date very little is known about the molecular mechanisms behind these beneficial effects and the potential pitfalls of the consumption of those two compounds. Only studies of each compound separately and using only small scale molecular biology approaches have been carried out. The results of this work provide an excellent starting point for further studies that will help to understand the metabolic effects of fish oil and TTA and will hopefully help to design dietary programs directed towards reduction of the prevalence of metabolic syndrome and associated diseases.
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Gao H, Guan T, Li C, Zuo G, Yamahara J, Wang J, Li Y. Treatment with ginger ameliorates fructose-induced Fatty liver and hypertriglyceridemia in rats: modulation of the hepatic carbohydrate response element-binding protein-mediated pathway. Evid Based Complement Alternat Med. 2012;2012:570948. [PMID: 23193424 PMCID: PMC3502023 DOI: 10.1155/2012/570948] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Ginger has been demonstrated to improve lipid derangements. However, its underlying triglyceride-lowering mechanisms remain unclear. Fructose overconsumption is associated with increase in hepatic de novo lipogenesis, thereby resulting in lipid derangements. Here we found that coadministration of the alcoholic extract of ginger (50 mg/kg/day, oral gavage, once daily) over 5 weeks reversed liquid fructose-induced increase in plasma triglyceride and glucose concentrations and hepatic triglyceride content in rats. Plasma nonesterified fatty acid concentration was also decreased. Attenuation of the increased vacuolization and Oil Red O staining area was evident on histological examination of liver in ginger-treated rats. However, ginger treatment did not affect chow intake and body weight. Further, ginger treatment suppressed fructose-stimulated overexpression of carbohydrate response element-binding protein (ChREBP) at the mRNA and protein levels in the liver. Consequently, hepatic expression of the ChREBP-targeted lipogenic genes responsible for fatty acid biosynthesis was also downregulated. In contrast, expression of neither peroxisome proliferator-activated receptor- (PPAR-) alpha and its downstream genes, nor PPAR-gamma and sterol regulatory element-binding protein 1c was altered. Thus the present findings suggest that in rats, amelioration of fructose-induced fatty liver and hypertriglyceridemia by ginger treatment involves modulation of the hepatic ChREBP-mediated pathway.
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Leiherer A, Mündlein A, Drexel H. Phytochemicals and their impact on adipose tissue inflammation and diabetes. Vascul Pharmacol 2012; 58:3-20. [PMID: 22982056 DOI: 10.1016/j.vph.2012.09.002] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2012] [Revised: 09/03/2012] [Accepted: 09/04/2012] [Indexed: 01/17/2023]
Abstract
Type 2 diabetes mellitus is an inflammatory disease and the mechanisms that underlie this disease, although still incompletely understood, take place in the adipose tissue of obese subjects. Concurrently, the prevalence of obesity caused by Western diet's excessive energy intake and the lack of exercise escalates, and is believed to be causative for the chronic inflammatory state in adipose tissue. Overnutrition itself as an overload of energy may induce the adipocytes to secrete chemokines activating and attracting immune cells to adipose tissue. But also inflammation-mediating food ingredients like saturated fatty acids are believed to directly initiate the inflammatory cascade. In addition, hypoxia in adipose tissue as a direct consequence of obesity, and its effect on gene expression in adipocytes and surrounding cells in fat tissue of obese subjects appears to play a central role in this inflammatory response too. In contrast, revisiting diet all over the world, there are also some natural food products and beverages which are associated with curative effects on human health. Several natural compounds known as spices such as curcumin, capsaicin, and gingerol, or secondary plant metabolites catechin, resveratrol, genistein, and quercetin have been reported to provide an improved health status to their consumers, especially with regard to diabetes, and therefore have been investigated for their anti-inflammatory effect. In this review, we will give an overview about these phytochemicals and their role to interfere with inflammatory cascades in adipose tissue and their potential for fighting against inflammatory diseases like diabetes as investigated in vivo.
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Affiliation(s)
- Andreas Leiherer
- Vorarlberg Institute for Vascular Investigation and Treatment, Feldkirch, Austria
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