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Trang NM, Vinh LB, Phong NV, Yang SY. Traditional Uses, Phytochemistry, and Pharmacological Activities of Vernonia cinerea (L.) Less.: An Updated Review. Nutrients 2024; 16:1396. [PMID: 38732642 PMCID: PMC11085347 DOI: 10.3390/nu16091396] [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: 04/05/2024] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024] Open
Abstract
Vernonia cinerea (L.) Less. is a perennial herbaceous plant found mainly in tropical areas, particularly in Southeast Asia, South America, and India. Various parts of V. cinerea have traditionally been used in folk medicine to treat several diseases, such as malaria, fever, and liver diseases. V. cinerea has so far yielded about 92 secondary metabolites. The majority of these are sesquiterpene lactones, but triterpenes, flavonoids, steroids, phenolics, and other compounds are present as well. V. cinerea crude extracts reportedly exhibit anti-inflammatory, antiprotozoal, antidiabetic, anticancer, antimicrobial, antioxidant, and renoprotective activities. This study aims to provide the latest up-to-date information on the botanical characterization, distribution, traditional uses, phytochemistry, and pharmacological activity of V. cinerea. Information on V. cinerea was thoroughly reviewed. The literature published between 1950 and 2024 was compiled through online bibliographic databases, including SciFinder, Web of Science, Google Scholar, PubMed, ScienceDirect, Springer Link, Wiley, and the MDPI online library. The keywords used for the literature search included Vernonia cinerea (L.) Less. and the synonyms Cyanthillium cinereum (L.) H.Rob., Conyza cinerea L., and various others.
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Affiliation(s)
- Nguyen Minh Trang
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea;
| | - Le Ba Vinh
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Hanoi 10072, Vietnam;
| | - Nguyen Viet Phong
- Institute of Marine Biochemistry (IMBC), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Hanoi 10072, Vietnam;
- Department of Biology Education, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seo Young Yang
- Department of Biology Education, Teachers College and Institute for Phylogenomics and Evolution, Kyungpook National University, Daegu 41566, Republic of Korea
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Wang J, Dong J, Zhong F, Wu S, An G, Liao W, Qi L, Ma Y. Microbiome-Metabolome Analysis Insight into the Effects of the Extract of Phyllanthus emblica L. on High-Fat Diet-Induced Hyperlipidemia. Metabolites 2024; 14:257. [PMID: 38786734 PMCID: PMC11123125 DOI: 10.3390/metabo14050257] [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: 03/18/2024] [Revised: 04/19/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
The fruit of Phyllanthus emblica L. (FEPE) has a long history of use in Asian folk medicine. The main bioactive compounds in FEPE are polyphenols, known for their potent antioxidant, anti-inflammatory, and hypolipidemic activities. The present study aimed to investigate the intervention effect of FEPE (100 and 200 mg/kg) on hyperlipidemia for 8 weeks and preliminarily explored the potential mechanism by microbiome-metabolome analysis. The results showed that a high-dose FEPE (200 mg/kg) effectively alleviated dyslipidaemic symptoms and body weight gain in hyperlipidemic mice induced by a high-fat diet (HFD). Microbiome analysis showed that FEPE altered the structure of the intestinal microbiota, which included an increase in specific probiotics (such as Akkermansia, Anaerovorax, and Bacteroides) and a decrease in harmful bacteria (including A2, Acetitomaculum, Candidatus_Arthromitus, Lachnospiraceae_NK4A136_group, Lachnospiraceae_NK4B4_group, Rikenella, and Streptococcus), as well as a reduction in the level of short-chain fatty acids (SCFAs). In addition, significant changes in the hepatic metabolome were observed, and eight key metabolites associated with betaine metabolism, lysine degradation, methionine metabolism, and fatty acid metabolism pathways were primarily filtered. The correlated analysis identified several key "microbiota-metabolite" axes in the treatment of hyperlipidemia by FEPE extract. In conclusion, the present study is expected to provide a basis for treating hyperlipidemia with FEPE from the perspective of the microbiome-liver metabolome axis.
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Affiliation(s)
- Jiahao Wang
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Jijing Dong
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Furong Zhong
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Sha Wu
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Guangqin An
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Wan Liao
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Luming Qi
- School of Health Preservation and Rehabilitation, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - Yuntong Ma
- State Key Laboratory of Characteristic Chinese Medicine Resources in Southwest China, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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Munkong N, Thim-Uam A, Pengnet S, Hansakul P, Somparn N, Naowaboot J, Tocharus J, Tocharus C. Effects of Red Rice Bran Extract on High-Fat Diet-Induced Obesity and Insulin Resistance in Mice. Prev Nutr Food Sci 2022; 27:180-187. [PMID: 35919575 PMCID: PMC9309068 DOI: 10.3746/pnf.2022.27.2.180] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/05/2022] [Accepted: 02/23/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Narongsuk Munkong
- Department of Pathology, School of Medicine, University of Phayao, Phayao 56000, Thailand
| | - Arthid Thim-Uam
- Division of Biochemistry, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Sirinat Pengnet
- Division of Physiology, School of Medical Sciences, University of Phayao, Phayao 56000, Thailand
| | - Pintusorn Hansakul
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Nuntiya Somparn
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Jarinyaporn Naowaboot
- Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Jiraporn Tocharus
- Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Chainarong Tocharus
- Department of Anatomy, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
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Boonloh K, Thanaruksa R, Proongkhong T, Thawornchinsombut S, Pannangpetch P. Nil-Surin Rice Bran Hydrolysates Improve Lipid Metabolism and Hepatic Steatosis by Regulating Secretion of Adipokines and Expression of Lipid-Metabolism Genes. J Med Food 2022; 25:597-606. [PMID: 35708630 DOI: 10.1089/jmf.2021.k.0170] [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: 11/12/2022] Open
Abstract
Overconsumption of a high caloric diet is associated with metabolic disorders and a heightened risk of diabetes mellitus (DM), hepatic steatosis, and cardiovascular complications. The use of functional food has received much attention as a strategy in the prevention and treatment of metabolic disorders. This present study investigated whether Nil-Surin rice bran hydrolysates (NRH) could prevent or ameliorate the progression of metabolic disorders in rats in which insulin resistance (IR) was induced by a high fat-high fructose diet (HFFD). After 10 weeks of the HFFD, the rats showed elevated fasting blood glucose (FBG), impaired glucose tolerance, dysregulation of adipokine secretion, distorted lipid metabolism such as dyslipidemia, and increased intrahepatic fat accumulation. The IR was significantly attenuated by a daily dose of NRH (100 or 300 mg/kg/day). Doses of NRH rectified adipokine dysregulation by increasing serum adiponectin and improving hyperleptinemia. Interestingly, NRH decreased intrahepatic fat accumulation and improved dyslipidemia as shown by decreased levels of hepatic triglyceride (TG) and serum TG, total cholesterol and low-density lipoprotein cholesterol, and increased high-density lipoprotein cholesterol. In addition, a modulation of expression of lipid metabolism genes was observed: NRH prevented upregulation of the lipogenesis genes Srebf1 and Fasn. In addition, NRH enhanced the expression of fatty-acid oxidation genes, as evidenced by an increase of Ppara and Cpt1a when compared with the HFFD control group. The activities of NRH in the modulation of lipid metabolism and rectifying the dysregulation of adipokines may result in a decreased risk of DM and hepatic steatosis. Therefore, NRH may be beneficial in ameliorating metabolic disorders in the HFFD model.
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Affiliation(s)
- Kampeebhorn Boonloh
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Muang District, Thailand.,Cardiovascular Research Group, Khon Kaen University, Muang District, Thailand
| | - Ratthipha Thanaruksa
- Rice Department, Surin Rice Research Center, Agricultural and Cooperatives Ministry, Surin, Thailand
| | - Tunvaraporn Proongkhong
- Rice Department, Chum Phae Rice Research Center, Agricultural and Cooperatives Ministry, Khon Kaen, Thailand
| | - Supawan Thawornchinsombut
- Department of Food Technology, Faculty of Technology, Khon Kaen University, Muang District, Thailand
| | - Patchareewan Pannangpetch
- Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Muang District, Thailand.,Cardiovascular Research Group, Khon Kaen University, Muang District, Thailand
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Naowaboot J, Nanna U, Chularojmontri L, Songtavisin T, Tingpej P, Sattaponpan C, Jansom C, Wattanapitayakul S. Mentha cordifolia Leaf Extract Improves Hepatic Glucose and Lipid Metabolism in Obese Mice Fed with High-Fat Diet. Prev Nutr Food Sci 2021; 26:157-165. [PMID: 34316480 PMCID: PMC8276705 DOI: 10.3746/pnf.2021.26.2.157] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/18/2021] [Accepted: 03/22/2021] [Indexed: 11/21/2022] Open
Abstract
Mentha cordifolia (MC) is a popular herb used to flavor food in Thailand that exhibits several biological effects. The present study aimed to determine the role of MC in regulating glucose and lipid metabolism in mice fed a high-fat diet (HFD). ICR obese mice were fed an HFD (45 kcal% lard fat) for 12 weeks, with MC (100 and 200 mg/kg/d) treatment from Week 7. After treatment with MC for 6 weeks, mice showed significantly lower rates of hyperglycemia, hyperinsulinemia, hyperleptinemia, and hyperlipidemia, and increased amounts of serum adiponectin. Furthermore, in mice treated with MC, serum interleukin-6 and tumor necrosis factor alpha were significantly inhibited and liver histology results showed decreased lipid accumulation and liver triglyceride content vs. untreated mice. In addition, MC treatment was associated with smaller fat cells and lower gene expression of liver sterol regulatory element binding protein 1c, acetyl-CoA carboxylase, and fatty acid synthase. However, MC treatment was associated with higher carnitine palmitoyltransferase 1a gene expression and significantly higher rates of adenosine monophosphate-activated protein kinase (AMPK) phosphorylation in liver, but lower levels of phosphoenolpyruvate carboxykinase and glucose-6-phosphatase. These results indicate MC regulates glucose and lipid metabolism in a HFD-induced obese mouse model, possibly via activation of AMPK signaling pathway.
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Affiliation(s)
- Jarinyaporn Naowaboot
- Division of Pharmacology, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Urarat Nanna
- Division of Pharmacology, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Linda Chularojmontri
- Division of Pharmacology, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Thanitsara Songtavisin
- Division of Anatomy, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Pholawat Tingpej
- Division of Microbiology and Immunology, Department of Preclinical Science, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Chisanucha Sattaponpan
- Research Administrative Office, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Chalerm Jansom
- Research Administrative Office, Faculty of Medicine, Thammasat University, Pathum Thani 12120, Thailand
| | - Suvara Wattanapitayakul
- Department of Pharmacology, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
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Plant Extracts for Type 2 Diabetes: From Traditional Medicine to Modern Drug Discovery. Antioxidants (Basel) 2021; 10:antiox10010081. [PMID: 33435282 PMCID: PMC7827314 DOI: 10.3390/antiox10010081] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 01/04/2021] [Accepted: 01/07/2021] [Indexed: 12/17/2022] Open
Abstract
Type 2 diabetes mellitus (T2DM) is one of the largest public health problems worldwide. Insulin resistance-related metabolic dysfunction and chronic hyperglycemia result in devastating complications and poor prognosis. Even though there are many conventional drugs such as metformin (MET), Thiazolidinediones (TZDs), sulfonylureas (SUF), dipeptidyl peptidase 4 (DPP-4) inhibitors, glucagon like peptide 1 (GLP-1) and sodium-glucose cotransporter-2 (SGLT-2) inhibitors, side effects still exist. As numerous plant extracts with antidiabetic effects have been widely reported, they have the potential to be a great therapeutic agent for type 2 diabetes with less side effects. In this study, sixty-five recent studies regarding plant extracts that alleviate type 2 diabetes were reviewed. Plant extracts regulated blood glucose through the phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) pathway. The anti-inflammatory and antioxidant properties of plant extracts suppressed c-Jun amino terminal kinase (JNK) and nuclear factor kappa B (NF-κB) pathways, which induce insulin resistance. Lipogenesis and fatty acid oxidation, which are also associated with insulin resistance, are regulated by AMP-activated protein kinase (AMPK) activation. This review focuses on discovering plant extracts that alleviate type 2 diabetes and exploring its therapeutic mechanisms.
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Andrade C, Gomes NGM, Duangsrisai S, Andrade PB, Pereira DM, Valentão P. Medicinal plants utilized in Thai Traditional Medicine for diabetes treatment: Ethnobotanical surveys, scientific evidence and phytochemicals. JOURNAL OF ETHNOPHARMACOLOGY 2020; 263:113177. [PMID: 32768637 DOI: 10.1016/j.jep.2020.113177] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 06/23/2020] [Accepted: 07/09/2020] [Indexed: 05/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Diabetes mellitus remains the most lethal metabolic disease of contemporaneous times and despite the therapeutic arsenal currently available, research on new antidiabetic agents remains a priority. In recent years, the revitalization of Thai Traditional Medicine (TTM) became a clear priority for the Thai government, and many efforts have been undertaken to accelerate research on herbal medicines and their use in medical services in various hospitals. Additionally, and particularly in rural areas, treatment of diabetes and associated symptomatology frequently relies on herbal preparations recommended by practitioners of TTM. In the current work, medicinal plants used in Thailand for treating diabetes, as well as their hypoglycaemic pharmacological evidences and potential therapeutic use for diabetes-related complications were reviewed. MATERIALS AND METHODS Ethnopharmacological information on the plant materials used in TTM for diabetes treatment was collected through literature search in a range of scientific databases using the search terms: diabetes, folk medicine, Thailand medicinal plants, traditional medicine. Information regarding scientific evidence on the antidiabetic effects of surveyed species was obtained considering not only the most common taxonomic designation, but also taxonomic synonyms, and including the keywords 'diabetes' and 'hypoglycaemic effect'. RESULTS A total of 183 species known to be used for diabetes management in TTM were reviewed, with 30% of them still lacking experimental evidences to support claims regarding the mechanisms and phytochemicals underlying their antidiabetic properties. Moreover, a total of 46 bioactives displaying effective antidiabetic effects have been isolated from 24 species, their underlying mechanism(s) of action being fully or partially disclosed. CONCLUSIONS We deliver the most extensive survey dealing with the ethnomedicinal knowledge of Thai medicinal plants utilized on diabetes management. We are certain that the current review will spark further research on Thai plants for the development of new standardized phytomedicines through drug discovery programmes.
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Affiliation(s)
- Catarina Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade Do Porto, R. Jorge Viterbo Ferreira, Nº 228, 4050-313, Porto, Portugal.
| | - Nelson G M Gomes
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade Do Porto, R. Jorge Viterbo Ferreira, Nº 228, 4050-313, Porto, Portugal.
| | - Sutsawat Duangsrisai
- Department of Botany, Faculty of Science, Kasetsart University, Ngam Wong Wang Road, Chatuchak, Bangkok, 10900, Thailand.
| | - Paula B Andrade
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade Do Porto, R. Jorge Viterbo Ferreira, Nº 228, 4050-313, Porto, Portugal.
| | - David M Pereira
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade Do Porto, R. Jorge Viterbo Ferreira, Nº 228, 4050-313, Porto, Portugal.
| | - Patrícia Valentão
- REQUIMTE/LAQV, Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade Do Porto, R. Jorge Viterbo Ferreira, Nº 228, 4050-313, Porto, Portugal.
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Guo CY, Liao WT, Qiu RJ, Zhou DS, Ni WJ, Yu CP, Zeng Y. Aurantio-obtusin improves obesity and insulin resistance induced by high-fat diet in obese mice. Phytother Res 2020; 35:346-360. [PMID: 32749748 DOI: 10.1002/ptr.6805] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 06/20/2020] [Accepted: 06/24/2020] [Indexed: 02/02/2023]
Abstract
Aurantio-obtusin (AUR) is the main bioactive compound among the anthraquinones, from Cassia seed extract. This study was conducted to identify whether AUR could improve obesity and insulin resistance, induced by a high-fat diet in obese mice. Mice were fed a high-fat diet for 6 weeks and were then assigned to the high-fat diet (HFD) control group, the AUR 5 mg/kg group, or the AUR 10 mg/kg group. AUR improves glucose by activating the expression of PI3K, Akt and GLUT4, GLUT2. AUR altered the expression levels of several lipid metabolism-related and adipokine genes. AUR decreased the mRNA expression of PPAR-γ, FAS and increased the mRNA expression of PPAR-α in liver. AUR lowered SREBP-1c, FAS, SCD-1, inflammatory cytokines, and increased the expression of PPAR-γ, PPAR-α, CPT-1, and adiponectin in white adipose tissue (WAT). AUR docking with the insulin receptor showed that the residues of the insulin receptor, ectodomain, were the same as those around the emodin. The effect of AUR may be elicited by regulating the activity of the insulin signaling pathway, expression of lipid metabolism-related genes, and expression of inflammatory cytokine markers to improve adiposity, insulin resistance, and dyslipidemia.
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Affiliation(s)
- Cong-Ying Guo
- Guangdong Pharmaceutical University, Guangzhou, China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangzhou, China
| | - Wei-Tao Liao
- Guangdong Pharmaceutical University, Guangzhou, China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangzhou, China
| | - Rui-Jin Qiu
- Wuzhou Institute of Agricultural Sciences, Wuzhou, China
| | - Dan-Shui Zhou
- Guangdong Pharmaceutical University, Guangzhou, China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangzhou, China
| | - Wei-Ju Ni
- Guangdong Pharmaceutical University, Guangzhou, China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangzhou, China
| | - Cui-Ping Yu
- Wuzhou Institute of Agricultural Sciences, Wuzhou, China
| | - Yu Zeng
- Guangdong Pharmaceutical University, Guangzhou, China.,Engineering & Technology Research Center for Chinese Materia Medica Quality of the Universities of Guangdong Province, Guangzhou, China
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Wang W, Song X, Zhang J, Li H, Liu M, Gao Z, Wang X, Jia L. Antioxidation, hepatic- and renal-protection of water-extractable polysaccharides by Dictyophora indusiata on obese mice. Int J Biol Macromol 2019; 134:290-301. [PMID: 31071398 DOI: 10.1016/j.ijbiomac.2019.05.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Revised: 04/29/2019] [Accepted: 05/05/2019] [Indexed: 12/16/2022]
Abstract
The present work aimed to investigate the antioxidation, hepatic- and renal-protection of water-extractable polysaccharides (WPS) by Dictyophora indusiata fruiting body on high-fat emulsion-induced obese mice. The structural analysis indicated that WPS was the α-configurational heteropolysaccharide with the major monosaccharides of mannose and glucose, and the polydispersity of 1.77. The in vivo results showed that WPS administration could improve obesity-associated hepatic and renal metabolic impairment, reduce body weight and ameliorate oxidative stress of liver and kidney by down-regulating serum enzyme activities and hepatic lipid levels, stabilizing serum lipid status, enhancing antioxidant abilities and decreasing insulin and leptin resistance. The in vitro experiments showed that WPS had potential abilities to scavenge free radicals. The conclusions demonstrated that WPS might be used as a salutary food and natural medicine for preventing obesity-associated damage and its complications.
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Affiliation(s)
- Wenshuai Wang
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China
| | - Xinling Song
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China
| | - Jianjun Zhang
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China
| | - Huaping Li
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China
| | - Min Liu
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China
| | - Zheng Gao
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China
| | - Xiuxiu Wang
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China
| | - Le Jia
- College of Life Science, Shandong Agricultural University, Taian 271018, PR China.
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Li H, Yu L, Zhao C. Dioscin attenuates high‑fat diet‑induced insulin resistance of adipose tissue through the IRS‑1/PI3K/Akt signaling pathway. Mol Med Rep 2018; 19:1230-1237. [PMID: 30483735 DOI: 10.3892/mmr.2018.9700] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 10/10/2018] [Indexed: 11/05/2022] Open
Abstract
Insulin resistance, as a common metabolic disorder, may be caused by diet‑induced obesity. The aim of the present study is to investigate the effects of dioscin on regulating insulin resistance of adipose tissue induced by a high‑fat diet (HFD). An animal model was established successfully using C57BL/6J mice with high‑fat feeding, followed by treatment with 5, 10 and 20 mg/kg dioscin through gavage for 18 weeks, and randomly divided into a control group, a HFD model group and a dioscin group treated with 5, 10 and 20 mg/kg/day dioscin for 12 weeks. Histopathological changes in adipose tissues were examined using hematoxylin and eosin staining. Biochemical parameters of the serum were also monitored, including glucose, insulin, total triglyceride, homeostasis model assessment of insulin resistance (HOMA‑IR) and adipose insulin resistance (Adipo‑IR) levels. Expression of the mRNA and associated proteins of the insulin receptor substrate 1 (IRS‑1)/phosphoinositide 3‑kinase (PI3K)/protein kinase B (Akt) pathways were determined using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR) and western blot analysis, respectively. HOMA‑IR and Adipo‑IR values of mice fed with a HFD were significantly higher compared with those in the control group (P<0.01). However, dioscin administration significantly decreased HOMA‑IR and Adipo‑IR values in a dose‑dependent manner (P<0.05), suggesting the effects of dioscin on attenuating insulin resistance. RT‑qPCR results indicated that the associated genes of the IRS‑1/PI3K/Akt pathway were significantly downregulated by HFD compared with the control group (P<0.05), while dioscin significantly increased the expression of those genes compared with the control group (P<0.05). Similarly, the significant increase in phosphorylated (p‑)IRS‑1/IRS‑1 (P<0.05) and p‑Akt/Akt (P<0.05) values were substantially reversed by dioscin treatment. Dioscin pronouncedly mitigated insulin resistance in adipose tissues through the IRS‑1/PI3K/Akt pathway and has potential to be used as a novel therapeutic agent for the therapy of HFD‑induced insulin resistance in adipose tissue.
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Affiliation(s)
- Haijuan Li
- Department of Clinical Nutrition, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Lianzhi Yu
- Health Check Centre, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong 264000, P.R. China
| | - Changsheng Zhao
- Department of Nutrition, The Second Hospital of Shandong University, Jinan, Shandong 250033, P.R. China
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