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Yu Q, Yu F, Li Q, Zhang J, Peng Y, Wang X, Li T, Yin N, Sun G, Ouyang H, Chen Y, Mine Y, Tsao R, Zhang H. Anthocyanin-Rich Butterfly Pea Flower Extract Ameliorating Low-Grade Inflammation in a High-Fat-Diet and Lipopolysaccharide-Induced Mouse Model. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:11941-11956. [PMID: 37526116 DOI: 10.1021/acs.jafc.3c02696] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
This study aimed to explore the enhancive effects of butterfly pea flower (BF) extracts on metabolic and immune homeostasis in a low-grade inflammation mouse model. The BF extract was found to contain mainly anthocyanins among other flavonoids. BF supplementation alleviated metabolic endotoxemia by lowering the plasma glucose, lipopolysaccharide (LPS), and tumor necrosis factor-α (TNF-α) levels and restored lipid metabolism and the balance between Treg and Th17 cells, thereby inhibiting the dysfunctional liver and abdominal white adipose tissues. BF extract increased the tight junction protein expression and reduced the expression of proinflammatory cytokines, therefore sustaining the colonic mucosa structure. Furthermore, BF extracts reshaped the gut microbiota structure characterized by significantly promoted SCFA-producing gut microbiota such as Akkermansia and Butyricicoccaceae. Additionally, BF extracts enhanced fecal primary bile acid (BA) levels and modulated bile acid signaling in the liver and ileum to facilitate BA synthesis for the restoration of lipid metabolism. In summary, anthocyanin-enriched BF extracts alleviated the profound negative dietary alterations and helped maintain the metabolic health by modulating the various aspects of the gut microenvironment and enhancing hepatic bile acid synthesis.
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Affiliation(s)
- Qinqin Yu
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Fengyao Yu
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Qiong Li
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Jie Zhang
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - You Peng
- Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang 332005, China
| | - Xiaoya Wang
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Tao Li
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Ning Yin
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Genlin Sun
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Hui Ouyang
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Yuhuan Chen
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
| | - Yoshinori Mine
- Department of Food Science, University of Guelph, Guelph, Ontario N1G2W1, Canada
| | - Rong Tsao
- Guelph Food Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
| | - Hua Zhang
- Department of Food Nutrition and Safety, College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, China
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Potential effects and relevant lead compounds of Vigna mungo (L.) Hepper seeds against bacterial infection, helminthiasis, thrombosis and neuropharmacological disorders. Saudi J Biol Sci 2022; 29:3791-3805. [PMID: 35844375 PMCID: PMC9280312 DOI: 10.1016/j.sjbs.2022.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 02/20/2022] [Accepted: 03/06/2022] [Indexed: 11/20/2022] Open
Abstract
Multidrug-resistant bacterial infections, helminthiasis, thrombosis, anxiety and insomnia are some of the major global health concerns. Vigna mungo (L.) Hepper (VM) has been used traditionally to treat microbial infection, helminthic disorder, schizophrenia, memory loss, and blood circulatory problem. This research aims to discover antibacterial, anthelmintic, thrombolytic and neuropharmacological effects of the methanol extract of Vigna mungo seeds (MESVM), and also in-silico prediction of relevant lead compounds by molecular docking and ADME/T analysis. The crude extracts and subsequent fractions of MESVM were investigated for antibacterial activity by disc diffusion method, anthelmintic activity by paralysis and death test on earthworms, and thrombolytic activity by in vitro blood clot dissolution test. Open-field test and elevated plus maze test were performed for evaluating anxiolytic activity of the extracts. Using molecular docking, ligand poses of selected VM seeds’ phytoconstituents were predicted targeting tubulin, GlcN-6-P synthase, and human tissue plasminogen activator proteins for anthelmintic, antibacterial, and thrombolytic activity, respectively. In the antibacterial activity test, the MESVM at 10000 μg/mL concentration created highest and significant (P < 0.001) zone of inhibition against Staphylococcus aureus (15.42 mm) and Escherichia coli (12 mm) compared with tetracycline. The MESVM exhibited remarkable anthelmintic activity at 50 mg/mL concentration with 35.4 min paralysis time, 75.2 min death time and were closer to the durations of standard drug albendazole. No test extract showed anxiolytic activity. In thrombolytic activity test, all concentrations of MESVM produced clot lytic activity with high significance (P < 0.001) in comparison with the blank. In docking, 2′-hydroxygenistein, cyclokievitone hydrate, and aureol displayed maximum affinity to the target proteins for anthelmintic, antibacterial, and thrombolytic activity, respectively. This research revealed that the MESVM demonstrated potential anthelmintic, antibacterial and thrombolytic effects that confirmed the folkloric uses of VM and the found relevant lead compounds might be further optimized in future drug development.
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S S, Muraleedharan UD. Cationic Clitoria ternatea Seed Peptide as a Potential Novel Bioactive Molecule. Protein Pept Lett 2021; 28:1259-1271. [PMID: 34551687 DOI: 10.2174/0929866528666210922124735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/24/2021] [Accepted: 08/20/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND While several biologics have been reported from different parts of Clitoria ternatea, a herbaceous climber of the family Fabaceae, specific production of cationic peptides other than cyclotides (<3.7 kDa) has barely been investigated or their bioactive potential looked into. OBJECTIVE To uncover potential bioactivities and characteristics of novel cationic peptides from C. ternatea seeds. METHODS C. ternatea seed cationic peptide purified by simple and cost-effective procedures was analyzed by electrophoresis and mass spectrometry. Antimicrobial efficacy was evaluated against bacterial and fungal pathogens. Antioxidant potential was quantified by in vitro antioxidant assays. Physicochemical characterization and Tandem mass spectrometry were performed. RESULTS An 8.5 kDa cationic peptide purified from C. ternatea seeds was active against Candida albicans, Staphylococcus aureus, Aeromonas hydrophila and Escherichia coli at a minimum inhibitory concentration in the range of 8-32 μg/ml. This activity was totally uncompromised at pH 5-8 or after 1 h of heat treatment at 70-80 ºC, but was sensitive to protease treatment. Concentration-dependent free-radical scavenging activity and ferric-reducing capacity demonstrated the antioxidant potential of the peptide. Tandem MS analysis of trypsin-digested peptide based on shotgun proteomics detected matching peptide sequences with one or two cysteine residues but had low sequence coverage (≤17%) to known sequences in the C. ternatea protein database. Taken together, the distinct characteristics of this novel 8.5 kDa peptide clearly distinguishes it from known cyclotides of C. ternatea. CONCLUSIONS Insights have been obtained into the functional characteristics of what appears to be a novel cationic peptide from C. ternatea seeds, exhibiting significant antimicrobial and antioxidant activities.
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Affiliation(s)
- Sreekala S
- Department of Biotechnology, Goa University, Goa - 403 206. India
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Hypoglycemic efficacy and safety of Momordica charantia (bitter melon) in patients with type 2 diabetes mellitus. Complement Ther Med 2020; 52:102524. [DOI: 10.1016/j.ctim.2020.102524] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 07/09/2020] [Accepted: 07/19/2020] [Indexed: 01/03/2023] Open
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Oguis GK, Gilding EK, Jackson MA, Craik DJ. Butterfly Pea ( Clitoria ternatea), a Cyclotide-Bearing Plant With Applications in Agriculture and Medicine. FRONTIERS IN PLANT SCIENCE 2019; 10:645. [PMID: 31191573 PMCID: PMC6546959 DOI: 10.3389/fpls.2019.00645] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 04/29/2019] [Indexed: 05/16/2023]
Abstract
The perennial leguminous herb Clitoria ternatea (butterfly pea) has attracted significant interest based on its agricultural and medical applications, which range from use as a fodder and nitrogen fixing crop, to applications in food coloring and cosmetics, traditional medicine and as a source of an eco-friendly insecticide. In this article we provide a broad multidisciplinary review that includes descriptions of the physical appearance, distribution, taxonomy, habitat, growth and propagation, phytochemical composition and applications of this plant. Notable amongst its repertoire of chemical components are anthocyanins which give C. ternatea flowers their characteristic blue color, and cyclotides, ultra-stable macrocyclic peptides that are present in all tissues of this plant. The latter are potent insecticidal molecules and are implicated as the bioactive agents in a plant extract used commercially as an insecticide. We include a description of the genetic origin of these peptides, which interestingly involve the co-option of an ancestral albumin gene to produce the cyclotide precursor protein. The biosynthesis step in which the cyclic peptide backbone is formed involves an asparaginyl endopeptidase, of which in C. ternatea is known as butelase-1. This enzyme is highly efficient in peptide ligation and has been the focus of many recent studies on peptide ligation and cyclization for biotechnological applications. The article concludes with some suggestions for future studies on this plant, including the need to explore possible synergies between the various peptidic and non-peptidic phytochemicals.
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Affiliation(s)
| | | | | | - David J. Craik
- Institute for Molecular Bioscience, The University of Queensland, St Lucia, QLD, Australia
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Lam SH, Li YC, Kuo PC, Hwang TL, Yang ML, Wang CC, Tzen JTC. Chemical Constituents of Vigna luteola and Their Anti-inflammatory Bioactivity. Molecules 2019; 24:molecules24071371. [PMID: 30965630 PMCID: PMC6479608 DOI: 10.3390/molecules24071371] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/06/2019] [Accepted: 04/07/2019] [Indexed: 12/21/2022] Open
Abstract
Seventy-three compounds were identified from the methanol extract of V. luteola, and among these, three new (1–3) were characterized by spectroscopic and mass spectrometric analyses. The isolated constituents were assessed for anti-inflammatory potential evaluation, and several purified principles exhibited significant superoxide anion and elastase inhibitory effects.
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Affiliation(s)
- Sio-Hong Lam
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Yue-Chiun Li
- Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung 402, Taiwan.
| | - Ping-Chung Kuo
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
- Research Center for Industry of Human Ecology, Research Center for Chinese Herbal Medicine, and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Taoyuan 333, Taiwan.
- Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan.
| | - Mei-Lin Yang
- School of Pharmacy, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan.
| | - Chien-Chiao Wang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
| | - Jason T C Tzen
- Graduate Institute of Biotechnology, National Chung-Hsing University, Taichung 402, Taiwan.
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Ha TJ, Bo Song S, Ko J, Park CH, Ko JM, Choe ME, Kwak DY, Lee JH. Isolation and identification of α-glucosidase inhibitory constituents from the seeds of Vigna nakashimae: Enzyme kinetic study with active phytochemical. Food Chem 2018; 266:483-489. [DOI: 10.1016/j.foodchem.2018.06.039] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 05/27/2018] [Accepted: 06/08/2018] [Indexed: 11/25/2022]
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A critical review on phytochemical profile and health promoting effects of mung bean ( Vigna radiata ). FOOD SCIENCE AND HUMAN WELLNESS 2018. [DOI: 10.1016/j.fshw.2017.11.002] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Kim SK, Jung J, Jung JH, Lee BW, Kang SS, Roh GS, Hahm JR. Antidiabetic Effects of Vigna nakashimae Extract in Humans: A Preliminary Study. J Altern Complement Med 2017; 24:249-253. [PMID: 28976210 DOI: 10.1089/acm.2017.0114] [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: 11/13/2022] Open
Abstract
BACKGROUND Vigna nakashimae (VN) extract has been shown to have antidiabetic and antiobesity effects in various animal studies; however, to our knowledge, no data on such effects exist in humans. METHODS We performed a randomized placebo-controlled study to investigate the antidiabetic effects of VN extract treatment for 12 weeks in humans. A total of 18 Korean patients with type 2 diabetes were enrolled in this study and were allocated randomly to either the VN extract group (1 g thrice daily) or control group (placebo tablets) for 12 weeks. We investigated blood glucose levels, body weight, lipid profiles, and adverse events after 12 weeks of treatment. Fifteen subjects were included in the final analysis. RESULTS There was no difference in age, sex, fasting glucose levels, or lipid profiles between the VN extract and control groups at baseline. However, the baseline glycosylated hemoglobin (HbA1c) levels of the control group were lower than those of the VN extract group. After treatment with VN extract for 12 weeks, the body weight and lipid profile of the VN extract group remained unchanged; however, the HbA1C levels decreased by 0.36% ± 0.33% (p = 0.027). In contrast, the HbA1C levels of the control group did not change after 12 weeks (p = 0.228). During the 12-week treatment with VN extract, no serious adverse events were reported. CONCLUSION Our data indicate that VN extract has implications for glucose lowering in type 2 diabetic patients.
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Affiliation(s)
- Soo Kyoung Kim
- 1 Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea.,2 Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea
| | - Jaehoon Jung
- 1 Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea.,2 Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea
| | - Jung Hwa Jung
- 1 Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea.,2 Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea
| | - Byong Won Lee
- 3 Department of Functional Crop, National Institute of Crop Science , RDA, Miryang, Korea
| | - Sang Soo Kang
- 2 Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea.,4 Department of Anatomy and Neurobiology, Institute of Health Sciences, Gyeongsang National University School of Medicine , Jinju, Korea
| | - Gu Seob Roh
- 2 Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea.,4 Department of Anatomy and Neurobiology, Institute of Health Sciences, Gyeongsang National University School of Medicine , Jinju, Korea
| | - Jong Ryeal Hahm
- 1 Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea.,2 Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine , Jinju, Korea
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Yalamanchili C, Manda VK, Chittiboyina AG, Guernieri RL, Harrell WA, Webb RP, Smith LA, Khan IA. Utilizing Ayurvedic literature for the identification of novel phytochemical inhibitors of botulinum neurotoxin A. JOURNAL OF ETHNOPHARMACOLOGY 2017; 197:211-217. [PMID: 27469199 DOI: 10.1016/j.jep.2016.07.069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 07/20/2016] [Accepted: 07/25/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ayurveda, an ancient holistic system of health care practiced on the Indian subcontinent, utilizes a number of multi-plant formulations and is considered by many as a potential source for novel treatments, as well as the identification of new drugs. Our aim is to identify novel phytochemicals for the inhibition of bacterial exotoxin, botulinum neurotoxin A (BoNT/A) based on Ayurvedic literature. BoNT/A is released by Clostridium species, which when ingested, inhibits the release of acetylcholine by concentrating at the neuromuscular junction and causes flaccid paralysis, resulting in a condition termed as botulism, and may also lead to death due to respiratory arrest. METHODS Fifteen plants were selected from the book 'Diagnosis and treatment of diseases in Ayurveda' by Vaidya Bhagwan Dash and Lalitesh Kashyap, based on their frequency of use in the formulations used for the treatment of six diseases with neuromuscular symptoms similar to botulism. Phytochemicals from these plants were screened using in silico, and in vitro methods. Structures of 570 reported phytochemicals from 14 plants were docked inside six reported BoNT/A light chain crystal structures using ensemble docking module in Maestro (Schrödinger, LLE). RESULTS From the docking scores and structural diversity, nine compounds including acoric acid 1, three flavonoids, three coumarins derivatives, one kava lactone were selected and screened using an in vitro HPLC-based protease assay. The bioassay results showed that several compounds possess BoNT/A LC inhibition of 50-60% when compared to positive controls NSC 84094 and CB7967495 (80-95%). CONCLUSION Further testing of the active compounds identified from Ayurvedic literature and structure-activity studies of acoric acid 1 using more sensitive bioassays is under way. The identification of acoric acid 1, a novel scaffold against BoNT/A, exemplifies the utility of Ayurvedic literature for the discovery of novel drug leads.
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Affiliation(s)
- Chinni Yalamanchili
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS 38677, USA; Divison of Pharmacognosy, Department of BioMolecular Sciences, The University of Mississippi, University, MS 38677, USA
| | - Vamshi K Manda
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS 38677, USA
| | - Amar G Chittiboyina
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS 38677, USA
| | - Rebecca L Guernieri
- US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702-5011, USA
| | - William A Harrell
- US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702-5011, USA
| | - Robert P Webb
- US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702-5011, USA
| | - Leonard A Smith
- US Army Medical Research Institute of Infectious Diseases, Fort Detrick, MD 21702-5011, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS 38677, USA; Divison of Pharmacognosy, Department of BioMolecular Sciences, The University of Mississippi, University, MS 38677, USA.
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Son Y, Jang MK, Jung MH. Vigna nakashimae extract prevents hepatic steatosis in obese mice fed high-fat diets. J Med Food 2015; 17:1322-31. [PMID: 25357150 DOI: 10.1089/jmf.2014.3194] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Vigna species are important food resources and are traditionally used for the treatment of various diseases. In this study, we examined the inhibitory effects of Vigna nakashimae (VN) extract on high-fat diet (HFD)-induced hepatic steatosis and elucidated the molecular mechanisms. C57BL/6J mice were fed an HFD with or without VN extract for 16 weeks. VN extract decreased HFD-induced body weight, liver weight, hepatic lipid accumulation, and plasma alanine aminotransferase, and suppressed oxidative stress and inflammation associated with hepatitis. VN extract decreased plasma lipid levels and the expression of lipogenic genes in the livers of HFD-fed mice. VN extract significantly increased phosphorylation of adenosine monophosphate (AMP)-activated protein kinase (AMPK) and acetyl-CoA carboxylase, and expression of fatty acid oxidation genes in the liver of VN-treated HFD mice and HepG2 cells. Further, VN extract inhibited insulin or glucose-stimulated lipogenesis in HepG2 cells. In conclusion, VN extract prevents HFD-induced hepatic steatosis and lipotoxicity through AMPK activation.
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Affiliation(s)
- Yonghae Son
- School of Korean Medicine, Pusan National University , Gyeongnam, South Korea
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Jeon BT, Heo RW, Shin HJ, Yi CO, Lee YH, Joung HN, Jung JH, Jung J, Kim SK, Hahm JR, Lee BW, Ko JM, Baek IY, Kang SS, Roh GS. Attenuation by a Vigna nakashimae extract of nonalcoholic fatty liver disease in high-fat diet-fed mice. Biosci Biotechnol Biochem 2014; 78:482-9. [PMID: 25036839 DOI: 10.1080/09168451.2014.882753] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A Vigna nakashimae (VN) extract has been shown to have antidiabetic and anti-obesity effects. However, the mechanism underlying the effect of a VN extract on hepatic inflammation and endoplasmic reticulum (ER) stress remains unclear. In the present study, we investigated how a VN extract protects against the development of non-alcoholic fatty liver disease (NAFLD). A VN extract for 12 weeks reduced the body weight, serum metabolic parameters, cytokines, and hepatic steatosis in high-fat diet (HFD)-fed mice. A VN extract decreased HFD-induced hepatic acetyl CoA carboxylase and glucose transporter 4 expressions. In addition to the levels of high-mobility group box 1 and receptor for advanced glycation, the hepatic expression of ATF4 and caspase-3 was also reduced by a VN extract. Thus, these data indicate that a chronic VN extract prevented NAFLD through multiple mechanisms, including inflammation, ER stress, and apoptosis in the liver.
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Affiliation(s)
- Byeong Tak Jeon
- a Department of Pediatrics , Oregon Health and Science University , Portland , OR , USA
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Clitoria ternatea ameliorated the intracerebroventricularly injected streptozotocin induced cognitive impairment in rats: behavioral and biochemical evidence. Psychopharmacology (Berl) 2013; 230:589-605. [PMID: 23832386 DOI: 10.1007/s00213-013-3185-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Accepted: 06/11/2013] [Indexed: 12/24/2022]
Abstract
RATIONALE Clitoria ternatea, commonly known as Aparajita, is used as Medhya rasayana in Ayurveda. The role of C. ternatea in experimental models of cognitive impairment is yet to be explored. OBJECTIVES The present study was designed to study the effect of aqueous and hydroalcoholic extracts of C. ternatea on biochemical and behavioral parameters related to cognitive impairment in in vitro and in vivo studies. METHODS In vitro free radical scavenging and enzyme-inhibitory (cholinesterase, glycogen synthase kinase-3-β, rho kinase, prolyl endopeptidase, catechol-O-methyl transferase, and lipoxygenase) activities of aqueous and hydroalcoholic extracts of C. ternatea plant were evaluated. Based on in vitro results, hydroalcoholic extract of C. ternatea (100, 300, and 500 mg/kg, p.o.) was selected for evaluation in intracerebroventricularly injected streptozotocin (STZ)-induced cognitive impairment in male Wistar rats. Behavioral assessment was performed at baseline and on the 14th, 21st, and 28th days after STZ injection using elevated plus maze, passive avoidance, Morris water maze, and photoactometer. Oxidative stress parameters (malondialdehyde, reduced glutathione, nitric oxide levels, and superoxide dismutase activity), cholinesterase activity, and rho kinase (ROCK II) expression were studied in cerebral cortex and hippocampus of rats' brain at the end of the study. RESULTS The hydroalcoholic extract possessed significantly more in vitro antioxidant and enzyme-inhibitory activities as compared to aqueous extract. The hydroalcoholic extract of C. ternatea prevented STZ-induced cognitive impairment dose dependently by reducing oxidative stress, cholinesterase activity, and ROCK II expression. CONCLUSION In vitro and in vivo results suggest the potential of hydroalcoholic extract of C. ternatea for treatment of cognitive deficit in neurological disorders.
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Antiobesity activity of Vigna nakashimae extract in high-fat diet-induced obesity. Biosci Biotechnol Biochem 2013; 77:332-8. [PMID: 23391927 DOI: 10.1271/bbb.120755] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In this study, we evaluated the antiobesity effects of Vigna nakashimae (VN) extract and elucidated the underlying mechanisms. VN extract suppressed adipocyte differentiation and significantly attenuated the expression of adipogenic genes in 3T3-L1 cells. It decreased the expression of peroxisome proliferator-activated receptor γ (PPARγ) and its target genes in fully differentiated 3T3-L1 cells. Moreover, it enhanced the phosphorylation of AMP-activated protein kinase (AMPK) and acetyl CoA carboxylase (ACC), and increased the expression of fatty acid oxidation genes. In high-fat diet (HFD) fed mice, VN extract suppressed HFD-induced increases in body weight, epididymal fat tissue weight, and hepatic lipid levels, and decreased the plasma levels of triacylglycerols, fatty acid, total cholesterol, and inflammatory cytokines. Consistently with in vitro study results, VN extract prevented HFD-induced increases in the expression of PPARγ and its target genes, and restored the decrease in the phosphorylation of AMPK and ACC in epididymal fat and liver tissues. These findings suggest that Vigna nakashimae prevents obesity through suppression of PPARγ expression and activation of AMPK, and that it might be a useful dietary supplement for the prevention of obesity.
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Bao L, Bai S, Borijihan G. Hypolipidemic effects of a new piperine derivative GB-N from Piper longum in high-fat diet-fed rats. PHARMACEUTICAL BIOLOGY 2012; 50:962-967. [PMID: 22494195 DOI: 10.3109/13880209.2012.654395] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
CONTEXT Long pepper, Piper longum Linn. (Piperaceae), is widely used in traditional Mongolian medicine for treating hyperlipidemia and coronary heart disease. OBJECTIVE To investigate the hypolipidemic effects of a new piperine derivative GB-N isolated from long pepper in high-fat diet-fed rats. METHODS The levels of serum total cholesterol, triacylglycerols (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) were determined by enzymatic colorimetric method. The levels of 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA), CYP7A1, lecithin cholesterol acyltransferase (LCAT) and LDL receptor (LDLR) mRNA and protein expression were detected by real-time polymerase chain reaction and western blot analysis. RESULTS AND DISCUSSION Compared with model rats, oral administration of GB-N at doses of 2.5-10 mg/kg to hyperlipidemic rats could significantly decrease the levels of serum TG from 1.54 mmol/L in hyperlipidemic rats to 0.94-1.02 mmol/L, with an increase in serum HDL-C levels from 0.40 mmol/L in hyperlipidemic rats to 1.21-2.26 mmol/L. Treatment with GB-N (10 mg/kg) could also significantly upregulate levels of hepatic HMG-CoA reductase, CYP7A1, LCAT and LDLR mRNA and protein expression. CONCLUSION GB-N had hypolipidemic activity via regulating lipid metabolism pathways in liver of hyperlipidemic rats and could be explored as a potential agent for the prevention of hyperlipidemia diseases.
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Affiliation(s)
- Lidao Bao
- Institute of Macromolecular Chemistry and Mongolian Medicine, Inner Mongolia University, Huhhot 010021, Inner Mongolia, China
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Voon HC, Bhat R, Rusul G. Flower Extracts and Their Essential Oils as Potential Antimicrobial Agents for Food Uses and Pharmaceutical Applications. Compr Rev Food Sci Food Saf 2011. [DOI: 10.1111/j.1541-4337.2011.00169.x] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mahmud ZA, Bachar SC, Qais N. Antihyperlipidemic activity of leaf and root extracts of Premna esculenta (Roxb.) in Poloxamer-407 induced hyperlipidemic mice and rats. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s13596-011-0031-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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