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Cheng W, Fang X, Guan Z, Yao Y, Xu Z, Bi Y, Ren K, Li J, Chen F, Chen X, Ma W, Chu Z, Deng Z, Zhang Z, Lu L. Functional characterization and structural basis of a reversible glycosyltransferase involves in plant chemical defence. PLANT BIOTECHNOLOGY JOURNAL 2023; 21:2611-2624. [PMID: 37581303 PMCID: PMC10651139 DOI: 10.1111/pbi.14157] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/22/2023] [Accepted: 07/27/2023] [Indexed: 08/16/2023]
Abstract
Plants experience numerous biotic stresses throughout their lifespan, such as pathogens and pests, which can substantially affect crop production. In response, plants have evolved various metabolites that help them withstand these stresses. Here, we show that two specialized metabolites in the herbaceous perennial Belamcanda chinensis, tectorigenin and its glycoside tectoridin, have diverse defensive effects against phytopathogenic microorganisms and antifeeding effects against insect pest. We further functionally characterized a 7-O-uridine diphosphate glycosyltransferase Bc7OUGT, which catalyses a novel reversible glycosylation of tectorigenin and tectoridin. To elucidate the catalytic mechanisms of Bc7OUGT, we solved its crystal structure in complex with UDP and UDP/tectorigenin respectively. Structural analysis revealed the Bc7OUGT possesses a narrow but novel substrate-binding pocket made up by plentiful aromatic residues. Further structure-guided mutagenesis of these residues increased both glycosylation and deglycosylation activities. The catalytic reversibility of Bc7OUGT was also successfully applied in an one-pot aglycon exchange reaction. Our findings demonstrated the promising biopesticide activity of tectorigenin and its glycosides, and the characterization and mechanistic study of Bc7OUGT could facilitate the design of novel reversible UGTs to produce valuable glycosides with health benefits for both plants and humans.
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Affiliation(s)
- Weijia Cheng
- Department of Integrated Traditional Chinese Medicine and Western MedicineZhongnan Hospital of Wuhan University, School of Pharmaceutical SciencesWuhan UniversityWuhanChina
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Xueting Fang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Zhifeng Guan
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Yan Yao
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Zhenni Xu
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Yunya Bi
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Kexin Ren
- State Key Laboratory of Hybrid Rice, Department of Genetics, College of Life SciencesWuhan UniversityWuhanChina
| | - Jiwen Li
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhanChina
| | - Fangfang Chen
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Xiangsong Chen
- State Key Laboratory of Hybrid Rice, Department of Genetics, College of Life SciencesWuhan UniversityWuhanChina
- Hubei Hongshan LaboratoryWuhanChina
| | - Weihua Ma
- Hubei Insect Resources Utilization and Sustainable Pest Management Key Laboratory, College of Plant Science and TechnologyHuazhong Agricultural UniversityWuhanChina
- Hubei Hongshan LaboratoryWuhanChina
| | - Zhaohui Chu
- State Key Laboratory of Hybrid Rice, Department of Genetics, College of Life SciencesWuhan UniversityWuhanChina
- Hubei Hongshan LaboratoryWuhanChina
| | - Zixin Deng
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Zhengyu Zhang
- Department of Integrated Traditional Chinese Medicine and Western MedicineZhongnan Hospital of Wuhan University, School of Pharmaceutical SciencesWuhan UniversityWuhanChina
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
| | - Li Lu
- Department of Integrated Traditional Chinese Medicine and Western MedicineZhongnan Hospital of Wuhan University, School of Pharmaceutical SciencesWuhan UniversityWuhanChina
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Ministry of Education), School of Pharmaceutical SciencesWuhan UniversityWuhanChina
- Hubei Hongshan LaboratoryWuhanChina
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Guo YP, Yi P, Shi QQ, Yu RR, Wang JH, Li CY, Wu HQ. Cytotoxic Compounds from Belamcanda chinensis (L.) DC Induced Apoptosis in Triple-Negative Breast Cancer Cells. Molecules 2023; 28:4715. [PMID: 37375271 DOI: 10.3390/molecules28124715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Four compounds (1, 5, 7, and 8) were first isolated from the genus Belamcanda Adans. nom. conserv., and six known compounds (2-4, 6, 9, and 10) were isolated from the rhizome of Belamcanda chinensis (L.) DC. Their structures were confirmed by spectroscopic data. Herein, compounds 1-10 were rhapontigenin, trans-resveratrol, 5,7,4'-trihydroxy-6,3',5'-trimethoxy-isoflavone, irisflorentin, 6-hydroxybiochannin A, iridin S, pinoresinol, 31-norsysloartanol, isoiridogermanal, and iristectorene B, respectively. All compounds were evaluated for their antiproliferative effects against five tumor cell lines (BT549, 4T1, MCF7, MDA-MB-231, and MDA-MB-468). Among them, compound 9 (an iridal-type triterpenoid) showed the highest activity against 4T1 and MDA-MB-468 cells. Further studies displayed that compound 9 inhibited cell metastasis, induced cells cycle arrest in the G1 phase, exhibited significant mitochondrial damage in 4T1 and MDA-MB-468 cells including excess reactive oxygen species, decreased mitochondrial membrane potential, and induced 4T1 and MDA-MB-468 cell apoptosis for the first time. In summary, these findings demonstrate that compound 9 exerts promising potential for triple-negative breast cancer treatment and deserves further evaluation.
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Affiliation(s)
- Ya-Ping Guo
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
| | - Peng Yi
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen 518060, China
| | - Qi-Qi Shi
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen 518060, China
| | - Rui-Rui Yu
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen 518060, China
| | - Jin-Hui Wang
- School of Pharmacy, Harbin Medical University, Harbin 150081, China
| | - Chen-Yang Li
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen 518060, China
| | - Hai-Qiang Wu
- Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
- School of Pharmaceutical Sciences, Shenzhen University Medical School, Shenzhen 518060, China
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3
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Rajabian A, Rajabian F, Babaei F, Mirzababaei M, Nassiri-Asl M, Hosseinzadeh H. Interaction of Medicinal Plants and Their Active Constituents With Potassium Ion Channels: A Systematic Review. Front Pharmacol 2022; 13:831963. [PMID: 35273505 PMCID: PMC8902679 DOI: 10.3389/fphar.2022.831963] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 01/31/2022] [Indexed: 12/12/2022] Open
Abstract
Potassium ion (K+) channels are pore-forming transmembrane proteins that control the transport of K+ ions. Medicinal plants are widely used as complementary therapies for several disorders. Studies have shown that the modulation of K+ channels is most likely involved in various pharmacological effects of medicinal plants. This review aimed to evaluate the modulatory effects of medicinal plants and their active constituents on K+ channels under pathological conditions. This systematic review was prepared according to the Preferred Reporting Items for the Systematic Reviews and Meta-analyses (PRISMA) 2020 guideline. Four databases, including PubMed, Web of Science, embase, and Scopus, were searched. We identified 687 studies from these databases, from which we selected 13 in vivo studies for the review by using the Population, Intervention, Comparison, Outcomes, Study (PICOS) tool. The results of the 13 selected studies showed a modulatory effect of medicinal plants or their active constituents on ATP-sensitive potassium channels (KATP), and small (SKCa) and large (BKCa) conductance calcium-activated K+ channels in several pathological conditions such as nociception, brain ischemia, seizure, diabetes, gastric ulcer, myocardial ischemia-reperfusion, and hypertension via possible involvement of the nitric oxide/cyclic GMP pathway and protein kinase. K+ channels should be considered as significant therapeutic milestones in the treatment of several diseases. We believe that understanding the mechanism behind the interaction of medicinal plants with K+ channels can facilitate drug development for the treatment of various K+ channel-related disorders.
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Affiliation(s)
- Arezoo Rajabian
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Rajabian
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Babaei
- Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Mirzababaei
- Department of Clinical Biochemistry, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Marjan Nassiri-Asl
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Neurobiology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hossein Hosseinzadeh
- Department of Pharmacodynamics and Toxicology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Pharmaceutical Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Guo Y, Dai R, Deng Y, Sun L, Meng S, Xin N. Hypolipidemic properties of the extracts of Belamcanda chinensis leaves (BCLE) in KK-A y mice. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902020000118957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Ying Guo
- BIT&GS Technologies Co. Ltd., China
| | | | | | - Lili Sun
- BIT&GS Technologies Co. Ltd., China
| | | | - Nian Xin
- BIT&GS Technologies Co. Ltd., China
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Zhou H, Zhang Y, Liang H, Song H, Zhao J, Liu L, Zeng J, Sun L, Ma S, Meng D. A novel multidimensional strategy to evaluate Belamcanda chinensis (L) DC and Iris tectorum Maxim based on plant metabolomics, digital reference standard analyzer and biological activities evaluation. Chin Med 2021; 16:85. [PMID: 34446058 PMCID: PMC8393741 DOI: 10.1186/s13020-021-00494-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 08/10/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Belamcanda chinensis (L.) DC. (BC) belongs to the family of Iridaceae and is widely cultivated and used in many Chinese patent medicine and Chinese medicinal formulae. However, due to the high similarities in appearance such as color and shape to Iris tectorum Maxim (ITM), another plant from the same family, BC is often confused or even misused with ITM. METHODS Therefore, in order to distinguish the chemical constituents, qualities and biological activities of BC and ITM, multiple technologies including plant metabolomics, digital reference standard (DRS) analyzer and biological activities assay were employed to provide a sufficient basis for their practical applications. RESULTS In plant metabolomics, the PCA and OPLS-DA score plot indicated the obvious differences in chemical profiling between BC and ITM and 6 compounds were successfully identified to contribute to the differences. In DRS study, the fingerprints of 10 and 8 compounds in BC and ITM were developed based on DRS analyzer, respectively, involving relative retention time (RRT) method and linear calibration using two reference substances (LCTRS) technique. The DRS analyzer also accurately identified 10 and 8 compounds from BC and ITM, respectively, by using only two reference standards. In biological activities assay, BC had a better anticancer effect than ITM due to the high abundance of irigenin, while ITM showed stronger hepatoprotective activity than BC because of the high abundance of tectoridin. CONCLUSIONS Therefore, due to the significant differences of B. chinensis and I. dichotoma in chemical composition and biological activities, the current studies strongly proved that these two medicinal plants could not be mixed in industrial production and clinical medication.
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Affiliation(s)
- Hongxu Zhou
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China.,Chongqing Institute for Food and Drug Control, Chongqing, 401121, People's Republic of China
| | - Yi Zhang
- Chongqing Institute for Food and Drug Control, Chongqing, 401121, People's Republic of China
| | - Hui Liang
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Huijie Song
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Jiaming Zhao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Li Liu
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China
| | - Jun Zeng
- Chongqing Institute for Food and Drug Control, Chongqing, 401121, People's Republic of China
| | - Lei Sun
- National Institutes for Food and Drug Control, Beijing, 100050, People's Republic of China
| | - Shuangcheng Ma
- National Institutes for Food and Drug Control, Beijing, 100050, People's Republic of China.
| | - Dali Meng
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, People's Republic of China.
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Dev S, Acharyya RN, Akter S, Al Bari MA, Asma K, Hossain H, Sarkar KK, Biswas NN, Das AK. Toxicological screening and evaluation of anti-allergic and anti-hyperglycemic potential of Sonneratia caseolaris (L.) Engl. fruits. CLINICAL PHYTOSCIENCE 2021. [DOI: 10.1186/s40816-021-00301-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Sonneratia caseolaris (L.) Engl. (S. caseolaris) belonging to the Sonneratiaceae family is commonly known as Ora. It is traditionally used as an astringent, antiseptic, to treat sprains, swellings, cough and in arresting hemorrhage. The ethanolic extract of S. caseolaris (L.) Engl. fruits was investigated in the present study for its toxicity as well as anti-allergic and anti-hyperglycemic potentials.
Methods
Major phenolic compounds were identified and quantified by HPLC. Behavioral change, body weight, mortality and different blood parameters were measured to assess the toxicological effect of the extract. Anti-allergic activity was evaluated using TDI-induced allergic model mice. Oral glucose tolerance test (OGTT) and STZ-induced diabetic mice were used to evaluate the anti-hyperglycemic activity.
Results
Crude extract contained ellagic acid, vanillic acid and myrecitin (27.41, 3.06 and 7.93 mg per 100 g dry extract respectively). No major toxicity was observed in both acute and sub-acute toxicity study. Oral administration of the extract significantly ameliorated TDI-induced allergic symptoms like sneezing, scratching, swelling, redness and watery rhinorrhoea in the experimental mice. The extracts also reduced the total and differential count of leukocytes in the blood. The extract treated mice showed significant reduction in blood glucose, SGOT, SGPT, cholesterol, triglycerides, urea, creatinine and bilirubin level.
Conclusions
S. caseolaris contains bioactive phytoconstituents which may be the possible precursors to isolate and characterize the novel compounds targeting the diseases like allergy and diabetes.
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Kumar S, Mittal A, Babu D, Mittal A. Herbal Medicines for Diabetes Management and its Secondary Complications. Curr Diabetes Rev 2021; 17:437-456. [PMID: 33143632 DOI: 10.2174/1573399816666201103143225] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/26/2020] [Accepted: 10/08/2020] [Indexed: 11/22/2022]
Abstract
Diabetic Mellitus (DM) is a metabolic disorder that is concerning for people all over the world. DM is caused due to lack of insulin or ineffective production of insulin in the pancreas. A total of 463 million people were reported to have diabetes mellitus in 2019 and this number is predicted to rise up to 578 million by the year 2030 and 700 million by 2045. High blood sugar gives rise to many complications like diabetic retinopathy, diabetic nephropathy, atherosclerosis, hypercoagulability, cardiovascular disease, coronary heart disease, abdominal obesity, hypertension, hyperlipidemia, cerebrovascular disease, coronary artery disease, foot damage, skin complications, Alzheimer's disease, hearing impairment, and depression. These life-threatening complications make diabetes more severe than other diseases. Many synthetic drugs have been developed, but still, a complete cure is not provided by any of the molecules. Continuous use of some synthetic agents causes severe side effects, and thus the demand for non-toxic, affordable drugs still persists. Traditional treatments have been an extremely valued source of medicine all over human history. These are extensively used throughout the world, indicating that herbs are a growing part of modern and high-tech medicines. The World Health Organization (WHO) has listed a total of 21,000 plants, which are used for medicinal purposes around the world. Among them, more than 400 plants are available for the treatment of diabetes. Despite the fact that there are many herbal drugs available for treating diabetes, only a small number of these plants have undergone scientific and medical evaluation to assess their efficacy. Trigonella foenum-graecum, Allium sativum, Caesalpinia bonduc, Ferula assafoetida,etc., are some of the medicinal plants used for antidiabetic therapy. The presence of phenolic compounds, flavonoids, terpenoids, and coumarins is responsible for the antidiabetic nature of the medicinal plants. These constituents have shown a reduction in blood glucose levels. Pycnogenol, acarbose, miglitol, and voglibose are some of the examples of marketed drugs, which are obtained from natural origin and used as antidiabetic drugs. The active principles derived from the plants work through many antidiabetic mechanisms, which include inhibition of α-glucosidase, α-amylase, and protein tyrosine phosphatase 1B activities. One of the major advantages of herbal drugs is the low level of side effects attributed to these medicines, and this attracted various researchers to develop new molecules for the treatment of diabetes. In this review, recent advances in the field of herbal drugs to treat diabetes, prevent secondary complications from arising due to diabetes, and various herbal molecules in different stages of clinical trials will be emphasized upon.
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Affiliation(s)
- Shubham Kumar
- Faculty of Pharmaceutical Sciences, PCTE Group of Institutes, Campus-2, Near Baddowal Cantt. Ferozepur Road, Ludhiana-142021, India
| | - Anu Mittal
- Department of Chemistry, Guru Nanak Dev University College, Patti, Distt. Tarn Taran, India
| | - Dinesh Babu
- Faculty of Pharmacy & Pharmaceutical Sciences, Katz Group-Rexall Centre for Pharmacy and Health Research, University of Alberta, Edmonton, AB, T6G 2E1, Canada
| | - Amit Mittal
- Department of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, Lovely Professional University, Jalandhar-Delhi G.T. Road (NH-1), Phagwara (Punjab) 144411, India
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Zhang W, Li T, Zhang XJ, Zhu ZY. Hypoglycemic effect of glycyrrhizic acid, a natural non-carbohydrate sweetener, on streptozotocin-induced diabetic mice. Food Funct 2020; 11:4160-4170. [DOI: 10.1039/c9fo02114k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Glycyrrhizic acid (GZA) was extracted from the stem of licorice by enzymatic hydrolysis, separated and purified by silica gel column chromatography, its purity was determined by HPLC, and the structure was identified by FT-IR and NMR methods.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology
- Tianjin
- P.R. China
- Key Laboratory of Food Nutrition and Safety
| | - Ting Li
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology
- Tianjin
- P.R. China
- Key Laboratory of Food Nutrition and Safety
| | - Xiao-Jing Zhang
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology
- Tianjin
- P.R. China
- Key Laboratory of Food Nutrition and Safety
| | - Zhen-Yuan Zhu
- State Key Laboratory of Food Nutrition and Safety
- Tianjin University of Science & Technology
- Tianjin
- P.R. China
- Key Laboratory of Food Nutrition and Safety
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Antioxidant Properties and Digestive Enzyme Inhibitory Activity of the Aqueous Extract from Leafy Stems of Cissus polyantha. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:7384532. [PMID: 31827558 PMCID: PMC6885247 DOI: 10.1155/2019/7384532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 08/23/2019] [Accepted: 10/17/2019] [Indexed: 11/28/2022]
Abstract
Cissus polyantha (Vitaceae) is a plant used in Cameroonian traditional medicine for the treatment of diabetes. The aims of this study were to evaluate the in vitro antioxidant and antidiabetic activities of the aqueous extract of Cissus polyantha leafy stems. The enzyme inhibitory activity was determined in vitro on α-amylase and α-glucosidase enzymes, followed by confirmative study in vivo on normal rats (oral starch and sucrose tolerance tests at doses of 111, 222, and 444 mg/kg). The ferric reducing antioxidant power and the 2,2-diphenyl-1-picrylhydrazyl (DPPH) antiradical activity of the extract were examined to evaluate the antioxidant potential of the extract. The total content of phenols, flavonoids, and tannins of the extract were also determined. The results showed an inhibitory effect of the extract on the α-amylase and α-glucosidase activities with IC50 values of 216.14 and 182.40 μg/mL, respectively. The extract at doses of 222 and 444 mg/kg induced a significant decrease in postprandial glycaemia during the starch and sucrose tolerance tests. A remarkable antiradical activity of the extract was obtained although lower than that of the standard product. The aqueous extract of leafy stems of Cissus polyantha has an interesting inhibitory activity on the α-amylase and α-glucosidase enzymes, as well as an antioxidant potential, thus validating its use in traditional medicine for the treatment of diabetes mellitus and its complications.
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Kaleshkumar K, Rajaram R, Gayathri N, Sivasudha T, Arun G, Archunan G, Gulyás B, Padmanabhan P. Muscle extract of Arothron immaculatus regulates the blood glucose level and the antioxidant system in high-fat diet and streptozotocin induced diabetic rats. Bioorg Chem 2019; 90:103072. [DOI: 10.1016/j.bioorg.2019.103072] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 05/21/2019] [Accepted: 06/15/2019] [Indexed: 02/02/2023]
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11
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Zhang W, Wang HY, Wang HX, Zhu ZY. Synthesis and inhibition of α-glucosidase of methyl glycyrrhetinate glycosides. Nat Prod Res 2019; 35:1874-1880. [PMID: 31305136 DOI: 10.1080/14786419.2019.1639181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The synthesis of the methyl glycyrrhetinate glycosides and inhibition of α-glucosidase were studied. The carboxyl group of glycyrrhetinic acid was methylated, and glucose and galactose were introduced into the hydroxyl group to obtain compounds 7 and 12. Compound 1, 2, 7, 12 and glycyrrhizic acid (GL) were evaluated for their inhibitory activities against α-glucosidase. As a result, Compound 1, 2, 7, 12 and GL all showed significant α-glucosidase inhibitory activity and IC50 values were 0.465, 1.352, 0.759, 0.687 and 2.085 mM, respectively, and acted as non-competitive inhibitors. The activity of the compound 2, 7, 12 was lower than compound 1, but significantly higher than GL. Therefore, it was concluded that the change of structure in glycyrrhetinic acid by chemical modification had certain effect on bioactivity, and the change of carboxyl group, hydroxyl group and the type of monosaccharide introduced were the influencing factors.
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Affiliation(s)
- Wei Zhang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, P.R. China.,Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin, P.R. China.,College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin, P.R. China
| | - He-Ying Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, P.R. China.,Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin, P.R. China.,College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin, P.R. China
| | - Huai-Xu Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, P.R. China.,Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin, P.R. China.,College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin, P.R. China
| | - Zhen-Yuan Zhu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin, P.R. China.,Key Laboratory of Food Nutrition and Safety, Ministry of Education, Tianjin University of Science and Technology, Tianjin, P.R. China.,College of Food Science and Biotechnology, Tianjin University of Science and Technology, Tianjin, P.R. China
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12
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Hypoglycemic activity of the extracts of Belamcanda chinensis leaves (BCLE) on KK-Ay mice. Biomed Pharmacother 2019; 110:449-455. [DOI: 10.1016/j.biopha.2018.11.094] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/12/2018] [Accepted: 11/25/2018] [Indexed: 11/18/2022] Open
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13
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Ha DT, Binh BT, Thu NT, Bich Thu NT, Thanh Tung PH, Oh WK. Four New Compounds Isolated from the Aerial Part of Belamcanda chinensis (L.) and Their Effect on Vascular Smooth Muscle Cell (VSMC) Proliferation. Chem Pharm Bull (Tokyo) 2019; 67:41-46. [PMID: 30606949 DOI: 10.1248/cpb.c18-00645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bio-guided fractionation of the 70% ethanol extract of Belamcanda chinensis (L.) DC. revealed four new compounds, including 6″-O-acetylembinin (5), 3″-O-acetylembinin (6), irigenin 3'-O-β-glucopyranoside (8), and 2'-acetyl-1,3-O-diferuloylsucrose (9), along with five known compounds (1-4, 7). Their chemical structures were determined using extensive NMR data, mass spectroscopy, and comparison with published literature. Among the isolates, compounds 1 and 4-7 achieved good regulation of the growth and proliferation of vascular smooth muscle cells.
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Affiliation(s)
- Do Thi Ha
- Department of Phytochemistry, National Institute of Medical Materials
| | - Bui Thi Binh
- Department of Phytochemistry, National Institute of Medical Materials.,Thai Binh University of Medicine and Pharmacy
| | - Nguyen Thi Thu
- Department of Phytochemistry, National Institute of Medical Materials
| | | | - Pham Ha Thanh Tung
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University
| | - Won Keun Oh
- Korea Bioactive Natural Material Bank, Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University
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Li Y, Zhong S, Yu J, Sun Y, Zhu J, Ji D, Wu C. The mulberry-derived 1-deoxynojirimycin (DNJ) inhibits high-fat diet (HFD)-induced hypercholesteremia and modulates the gut microbiota in a gender-specific manner. J Funct Foods 2019. [DOI: 10.1016/j.jff.2018.10.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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15
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Ni G, Li JY, Yu DQ. Belamchinenin A, an unprecedented tricyclic-fused triterpenoid with cytotoxicity from Belamcanda chinensis. Org Biomol Chem 2018; 16:3754-3759. [DOI: 10.1039/c8ob00789f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we report an unprecedented tricyclic-fused triterpenoid, which features a rigid and half-caged tricyclic nucleus. The absolute configuration of the tricyclic nucleus of 1 was unequivocally assigned by ECD calculation.
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Affiliation(s)
- Gang Ni
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing 100050
- People's Republic of China
| | - Jia-Yuan Li
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing 100050
- People's Republic of China
| | - De-Quan Yu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Chinese Academy of Medical Sciences and Peking Union Medical College
- Beijing 100050
- People's Republic of China
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16
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Tian M, Zhang X, Zhu Y, Xie G, Qin M. Global Transcriptome Analyses Reveal Differentially Expressed Genes of Six Organs and Putative Genes Involved in (Iso)flavonoid Biosynthesis in Belamcanda chinensis. FRONTIERS IN PLANT SCIENCE 2018; 9:1160. [PMID: 30154811 PMCID: PMC6102373 DOI: 10.3389/fpls.2018.01160] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 07/23/2018] [Indexed: 05/16/2023]
Abstract
Belamcanda chinensis (L.) DC., a perennial herb of the family Iridaceae, is rich in a variety of (iso)flavonoids with significant organ-specific distribution and has a swollen rhizome that is widely used in East Asia as a traditional medicine. In the present study, comprehensive transcriptomes of six organs (root, rhizome, aerial stem, leaf, flower, and young fruit) of B. chinensis were obtained by high-throughput RNA-sequencing and de novo assembly. A total of 423,661 unigenes (mean length = 618 bp, median length = 391 bp) were assembled and annotated in seven databases: Non-redundant protein sequences, Nucleotide sequences, Swiss-Prot, Protein family database, euKaryotic Ortholog Groups, Kyoto Encyclopedia of Genes and Genomes (KEGG), and Gene Ontology (GO). A total of 4995 transcription factors were identified, including 408 MYB, 182 bHLH, 277 AP2/ERF, and 228 WRKY genes. A total of 129 cytochrome P450 unigenes belonging to 10 divergent clans were identified and grouped into clades in a phylogenetic tree that showed their inferred evolutionary relationship. Differentially expressed unigenes among the six organs were subjected to GO and KEGG enrichment analysis to profile the functions of each organ. Unigenes associated with (iso)flavonoid biosynthesis were then profiled by expression level analysis. Additionally, the complete coding sequences of six predicted enzymes essential to the (iso)flavonoid pathway were obtained, based on the annotated unigenes. This work reveals clear differences in expression patterns of genes among the six organs and will provide a sound platform to understand the (iso)flavonoid pathways in B. chinensis.
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Affiliation(s)
- Mei Tian
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
- Key Laboratory of Modern Traditional Chinese Medicines (Ministry of Education), China Pharmaceutical University, Nanjing, China
| | - Xiang Zhang
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
- Key Laboratory of Modern Traditional Chinese Medicines (Ministry of Education), China Pharmaceutical University, Nanjing, China
| | - Yan Zhu
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
- Key Laboratory of Modern Traditional Chinese Medicines (Ministry of Education), China Pharmaceutical University, Nanjing, China
| | - Guoyong Xie
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
- Key Laboratory of Modern Traditional Chinese Medicines (Ministry of Education), China Pharmaceutical University, Nanjing, China
| | - Minjian Qin
- Department of Resources Science of Traditional Chinese Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
- Key Laboratory of Modern Traditional Chinese Medicines (Ministry of Education), China Pharmaceutical University, Nanjing, China
- *Correspondence: Minjian Qin,
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17
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de Gouveia NM, Rodrigues WF, de Sousa RMF, Calábria LK, Mundim AV, Miguel CB, Oliveira CJF, Lazo-Chica JE, de Oliveira A, Lago JHG, dos Santos VB, do Lago CL, Espindola FS. Phytochemical characterization of the Vochysia rufa (Vochysiaceae) extract and its effects on oxidative stress in the pancreata of streptozotocin-induced diabetic rats. PLoS One 2017; 12:e0184807. [PMID: 28981518 PMCID: PMC5628804 DOI: 10.1371/journal.pone.0184807] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 08/31/2017] [Indexed: 11/18/2022] Open
Abstract
Aqueous extract of macerated Vochysia rufa stem bark has been commonly used in the treatment of diabetes. Therefore, we evaluated the antihyperglycemic and antioxidant effects of an extract of V. rufa on the pancreata of streptozotocin (STZ)-induced diabetic rats. Animals received one of the following treatments daily by oral gavage: water (diabetic-control), V. rufa extract (diabetic-V. rufa), or glibenclamide (diabetic-GBD). Total antioxidant capacity; levels of thiobarbituric acid reactive substances, reduced glutathione, and sulfhydryls; and superoxide dismutase, catalase, and glutathione peroxidase (GPx) activities were measured in the pancreas. Biochemical analysis of serum total cholesterol and fractions, triglycerides, creatinine, urea, acid uric, ALP, γ-GT, AST, and ALT was performed, and pancreatic β-cells positive for insulin were evaluated by immunohistochemistry. Rats treated with extract exhibited a decrease in fasting blood glucose compared with levels in diabetic control rats. GPx activity and sulfhydryl levels were significantly lower in diabetic-V. rufa rats compared with those of diabetic-control rats. V. rufa extract acted to normalize the biochemical alterations found in diabetic rats (diabetic-controls), as demonstrated by increases in urea, HDL, ALP, AST, and ALT. Reduction in blood glucose was independent of an increase in insulin. The V. rufa extract was found to be composed of free sugars (inositol, galactose, glucose, mannose, sucrose, arabinose, and ribose) as the main metabolites. Thus, aqueous extract of the stem bark of V. rufa is capable of reducing blood glucose, resulting in an antioxidant effect on the pancreatic tissue of STZ-diabetic rats.
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Affiliation(s)
- Neire M. de Gouveia
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
- Departamento de Ciências Biofuncionais, Faculdade Morgana Potrich, Mineiros, Goiânia, Brazil
| | - Wellington F. Rodrigues
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
- Curso de Pós-graduação em Ciências da Saúde, Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Raquel M. F. de Sousa
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Luciana K. Calábria
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
- Faculdade de Ciências Integradas do Pontal, Universidade Federal de Uberlândia, Ituiutaba, Minas Gerais, Brazil
| | - Antonio V. Mundim
- Faculdade de Medicina Veterinária, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - Camila B. Miguel
- Curso de Pós-graduação em Ciências da Saúde, Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
- Laboratório Morfofuncional, Centro Universitário de Mineiros, UNIFIMES, Mineiros, Goiânia, Brazil
| | - Carlo J. F Oliveira
- Instituto de Ciências Biológicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Javier E. Lazo-Chica
- Curso de Pós-graduação em Ciências da Saúde, Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
- Instituto de Ciências Biológicas e Naturais, Universidade Federal do Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
| | - Alberto de Oliveira
- Instituto de Química, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
| | - João H. G. Lago
- Centro de Ciências Naturais e Humanas da Universidade Federal do ABC, Santo André, São Paulo, Brazil
| | | | | | - Foued S. Espindola
- Instituto de Genética e Bioquímica, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brazil
- * E-mail:
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Kaewnarin K, Suwannarach N, Kumla J, Lumyong S. Phenolic profile of various wild edible mushroom extracts from Thailand and their antioxidant properties, anti-tyrosinase and hyperglycaemic inhibitory activities. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.09.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
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19
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Zhang L, Wei K, Xu J, Yang D, Zhang C, Wang Z, Li M. Belamcanda chinensis (L.) DC-An ethnopharmacological, phytochemical and pharmacological review. JOURNAL OF ETHNOPHARMACOLOGY 2016; 186:1-13. [PMID: 27032710 DOI: 10.1016/j.jep.2016.03.046] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 03/15/2016] [Accepted: 03/18/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Belamcanda chinensis (L.) DC is the sole species in the genus Belamcanda Adans. (Iridaceae), found mainly in Northeast Asia. Bombus chinensis has long been used in traditional Chinese medicine for its multiple therapeutic uses in the form of antipyretic agents, antidote, expectorant, antiphlogistic and analgesic. AIM OF THE REVIEW This manuscript comprehensively summarizes the various studies published in recent years on the botany, ethnopharmacology, phytochemistry, biological activity and toxicology of B. chinensis. We hope to provide a foundation for future studies on the mechanism of action and development of better therapeutic agents based on B. chinensis. MATERIAL AND METHODS All information available on B. chinensis was collected using electronic search engines, such as PubMed, SciFinder Scholar, CNKI, TPL (www.theplantlist.org), Google Scholar and Web of Science. RESULTS The analysis shown that ethno-medical uses of B. chinensis have been recorded in China, Japan and Korea since a long time. Based on a phytochemical investigation, this plant contains flavonoids, terpenoids, quinones, phenolic compounds, ketones, organic acids, etc. Crude extracts and pure compounds isolated from B. chinensis exhibited various biological effects. CONCLUSIONS In light of its long traditional use and the modern phytochemical and pharmacological studies summarized here, B. chinensis is known to be a promising medicinal plant with the isolated extracts and chemical components showing a wide range of biological activities. Thus, it is imperative that the necessary programs and value assessment of B. chinensis be established for further studies. It is also important that the synergistic or antagonistic effects of this traditional herbal medicine are investigated in depth to identify more bioactive components by bioactivity-guided isolation strategies, and to illustrate the mechanisms of action targeting on ethnomedical uses. Future clinical studies can also focus on the main therapeutic aspects, toxicity and adverse effects of B. chinensis.
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Affiliation(s)
- Le Zhang
- Baotou Medical College, Inner Mongolia, Baotou 014060, China; Guangxi key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China
| | - Kunhua Wei
- Guangxi key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China
| | - Jianping Xu
- Baotou Medical College, Inner Mongolia, Baotou 014060, China; Guangxi key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China
| | - Dawei Yang
- Baotou Medical College, Inner Mongolia, Baotou 014060, China
| | - Chunhong Zhang
- Baotou Medical College, Inner Mongolia, Baotou 014060, China
| | - Zhipeng Wang
- Department of Chemistry, Texas A&M University, College Station, TX 77840, USA
| | - Minhui Li
- Baotou Medical College, Inner Mongolia, Baotou 014060, China; Guangxi key Laboratory of Medicinal Resources Protection and Genetic Improvement, Guangxi Botanical Garden of Medicinal Plants, Nanning 530023, China; Inner Mongolia Research Center of Characteristic Medicinal Plants Cultivation and Protection Engineering Technology, Inner Mongolia, Baotou 014060, China.
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20
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Jia YW, Zeng ZQ, Shi HL, Liang J, Liu YM, Tang YX, Liao X. Characterization of in vitro metabolites of irisflorentin by rat liver microsomes using high-performance liquid chromatography coupled with tandem mass spectrometry. Biomed Chromatogr 2016; 30:1363-70. [PMID: 26840210 DOI: 10.1002/bmc.3692] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 01/08/2016] [Accepted: 01/29/2016] [Indexed: 11/07/2022]
Abstract
Belamcanda chinensis has been extensively used as antibechic, expectorant and anti-inflammatory agent in traditional medicine. Irisflorentin is one of the major active ingredients. However, little is known about the metabolism of irisflorentin so far. In this work, rat liver microsomes (RLMs) were used to investigate the metabolism of this compound for the first time. Seven metabolites were detected. Five of them were identified as 6,7-dihydroxy-5,3',4',5'-tetramethoxy isoflavone (M1), irigenin (M2), 5,7,4'-trihydroxy-6,3',5'-trimethoxy isoflavone (M3), 6,7,4'-trihydroxy-5,3',5'-trimethoxy isoflavone (M4) and 6,7,5'-trihydroxy-5,3',4'-trimethoxy isoflavone (M5) by means of NMR and/or HPLC-ESI-MS. The structures of M6 and M7 were not elucidated because they produced no MS signals. The predominant metabolite M1 was noted to be a new compound. Interestingly, it was found to possess anticancer activity much higher than the parent compound. The enzymatic kinetic parameters of M1 revealed a sigmoidal profile, with Vmax = 12.02 μm/mg protein/min, Km = 37.24 μm, CLint = 0.32 μL/mg protein/min and h = 1.48, indicating the positive cooperation. For the first time in this work, a new metabolite of irisflorentin was found to demonstrate a much higher biological activity than its parent compound, suggesting a new avenue for the development of drugs from B. chinensis, which was also applicable for other herbal plants. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Yan-Wei Jia
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Zhong-Qiu Zeng
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Hai-Li Shi
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Jian Liang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Yi-Ming Liu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China.,Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch St, Jackson, MS, 39217, USA
| | - Ya-Xiong Tang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Xun Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, China
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Liu H, Wu C, Wang S, Gao S, Liu J, Dong Z, Zhang B, Liu M, Sun X, Guo P. Extracts and lignans of Schisandra chinensis fruit alter lipid and glucose metabolism in vivo and in vitro. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.09.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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22
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Belamcandae chinensis rhizoma – a review of phytochemistry and bioactivity. Fitoterapia 2015; 107:1-14. [DOI: 10.1016/j.fitote.2015.08.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 08/28/2015] [Accepted: 08/30/2015] [Indexed: 01/12/2023]
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Dhanavathy G. Immunohistochemistry, histopathology, and biomarker studies of swertiamarin, a secoiridoid glycoside, prevents and protects streptozotocin-induced β-cell damage in Wistar rat pancreas. J Endocrinol Invest 2015; 38:669-84. [PMID: 25770453 DOI: 10.1007/s40618-015-0243-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 01/12/2015] [Indexed: 01/28/2023]
Abstract
BACKGROUND Diabetes mellitus is globally the major cause for metabolic syndrome in STZ-induced diabetic rats, leading to mortality. Treatment of diabetes by oral hypoglycemic agents causes adverse side effects and thus treatment with natural herbal drugs like swertiamarin is promising. Swertiamarin, an active compound isolated from Enicostemma littorale possesses antidiabetic activity and enhances β cell regeneration which causes reversal of diabetes. OBJECTIVES The present study aims at the following: (1) to evaluate antidiabetic, anti-hyperlipidaemic, activity of swertiamarin in Streptozotocin- induced diabetic rats using biomarkers. (2) To assess histopathological alterations in Pancreas, Liver, Kidney, and Heart of swertiamarin-treated STZ-induced diabetic rats and confirm cytoprotective activity of swertiamarin by Immunohistochemistry and morphometric investigations. METHODS Diabetes was induced intraperitoneally in male Wistar rats by Streptozotocin (STZ 50 mg/kg). After STZ-induction, hyperglycemic rats were treated with doses of swertiamarin orally (15, 25, 50 mg/kg) each for 28 days. Glibenclamide (2.5 mg/kg), a sulphonyl urea, was used as a standard drug. The glycemic control was measured by the biochemical parameter assays. Histopathology analysis of organs and immunohistochemistry of islets were carried out. RESULTS Our study results showed that oral administration of swertiamarin at a dosage of 15, 25, 50 mg/kg bw for 28 days resulted in a significant (p < 0.01) decrease in fasting blood glucose, HbA1c, TC, TG, LDL, and increased the levels of hemoglobin, plasma insulin, TP, body weight, and HDL levels significantly (p < 0.01) when compared to STZ-induced diabetic rats, as confirmed by immunohistochemical studies. The effect of swertiamarin on Carbohydrate-metabolizing enzymes was investigated and found to have normal therapeutic activity. Histopathological studies of Pancreas of swertiamarin-treated diabetic rats showed regeneration of islets when compared to STZ-induced diabetic rats, as confirmed by immunohistochemical studies. CONCLUSION Our research results clearly substantiate that swertiamarin possesses antihyperglycemic, antihyperlipidemic, cytoprotective, and immune reactivity and also a broad spectrum potential of treating diabetes and other complications related to diabetes and hence can be developed into a potent oral antidiabetic drug.
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Affiliation(s)
- G Dhanavathy
- Department of Biotechnology, SRM University, Kattankulathur, Chennai, 603203, Tamilnadu, India.
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Antidiabetic activity of Pterospermum acerifolium flowers and glucose uptake potential of bioactive fraction in L6 muscle cell lines with its HPLC fingerprint. BIOMED RESEARCH INTERNATIONAL 2014; 2014:459376. [PMID: 25401101 PMCID: PMC4221968 DOI: 10.1155/2014/459376] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 08/12/2014] [Accepted: 08/19/2014] [Indexed: 01/24/2023]
Abstract
The present study was designed to estimate the detailed antidiabetic activity of Pterospermum acerifolium (L.) Willd flowers. In vitro alpha amylase inhibition study was carried out on 50% ethanol extract of flowers (PAFEE) and its various fractions. The active ethyl acetate fraction (PAFEF) was subfractionated into three subfractions (PAFE1, PAFE2, and PAFE3) and subjected to acute toxicity studies followed by antidiabetic screening in vivo by streptozotocin-nicotinamide induced type II diabetes. Diabetic animals treated with PAFE2 (30 mg/kg) reduced the levels of fasting blood glucose, significantly (P < 0.001) compared to that of diabetic control animals. Histological studies on drug treated groups did not show remarkable positive changes in β-cells. PAFE2 showed 32.6 ± 1.93% glucose uptake over control and, in the presence of PI3K inhibitor wortmannin, declined to 13.7 ± 2.51%. HPLC analysis of PAFE2 reveals the presence of quercetin and apigenin as major constituents and both are inhibiting the glycogen phosphorylase enzyme in molecular modelling studies. The study evidenced strongly that the probable glucose lowering mechanism of action of active subfraction PAFE2 is by increasing the glucose uptake in peripheral tissues and by inhibition of gluconeogenesis.
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Anaya-Eugenio GD, Rivero-Cruz I, Rivera-Chávez J, Mata R. Hypoglycemic properties of some preparations and compounds from Artemisia ludoviciana Nutt. JOURNAL OF ETHNOPHARMACOLOGY 2014; 155:416-25. [PMID: 24892833 DOI: 10.1016/j.jep.2014.05.051] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2014] [Revised: 05/22/2014] [Accepted: 05/23/2014] [Indexed: 05/23/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Artemisia ludoviciana, commonly known as "estafiate", plays an important role in contemporary Mexico for treating several diseases including diabetes. To establish the preclinical efficacy of Artemisia ludoviciana as hypoglycemic and/or antihyperglycemic agent using well-known animal models. MATERIALS AND METHODS Acute hypoglycemic as well as oral glucose (OGTT) and sucrose (OSTT) tolerance tests were used to demonstrate the value of the plant for treating diabetes. An essential oil (EO), an organic extract (OE) and an infusion (AE) were assayed in normal and NA-STZ-treated mice. The acute toxicity of the three preparations was analyzed by the Lorke method. The infusion was subjected to conventional phytochemical study using chromatographic conventional procedures. Some of the isolates were evaluated using the same pharmacological assays as well as an enzymatic test. The latter was employed to assess their potential inhibitory effect on yeast α-glucosidase. RESULTS Oral administration of OE to normal mice significantly decreased blood glucose level only at the dose of 100 mg/kg; in NA-STZ-mice the hypoglycemic effect was observed at the three doses tested (31.6, 100, and 316 mg/kg). The infusion reduced significantly, blood sugar levels only in diabetic mice; the best effect was observed at the dose of 316 mg/kg. The EO was inactive when evaluated in normal mice. Regarding to the antihyperglycemic effect, the best effect was observed with the OE, during the OGTT and OSTT in diabetic mice. The infusion (AE) showed better effects during the OGTT in both normal and diabetic animals at the dose of 100 mg/kg. Finally, the EO was inactive during an OGTT at the three doses tested (31.6, 100, and 316 mg/kg) in diabetic mice. In addition, the results of AE on the enzymatic test using yeast α-glucosidase revealed an inhibition of 45%; this finding was consistent with the results obtained with the same preparation in vivo during an OSTT. Conventional phytochemical analysis of the active AE led to the isolation and characterization of eupatilin (1), jaceosidin (2), arglanin (3), salvinine (4), and 3,5-dicaffeoylquinic acid (5). Biological testing of 1 and 3 revealed their hypoglycemic effect. The hypoglycemic effect of arglanin (3) was attenuated in the presence of nicorandil, which suggested that the lactone behaved as an ATP-K+-channel blocker as glibenclamide. Salvinine (4) turned out to be a mixed α-glucosidase inhibitor, while 3 was inactive. CONCLUSIONS Artemisia ludoviciana preparations showed hypoglycemic and antihyperglycemic effects, which could explain its effectiveness for treating diabetes in contemporary Mexico. Some of the active principles of the plant included compounds 1-5. These compounds seem to be acting synergistically on different molecular targets which involved glucose absorption and insulin liberation.
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Affiliation(s)
- Gerardo D Anaya-Eugenio
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Isabel Rivero-Cruz
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - José Rivera-Chávez
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Rachel Mata
- Departamento de Farmacia, Facultad de Química, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico.
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Švorc L, Cinková K, Sochr J, Vojs M, Michniak P, Marton M. Sensitive electrochemical determination of amlodipine in pharmaceutical tablets and human urine using a boron-doped diamond electrode. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.06.038] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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27
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Tissue-specific metabolites profiling and quantitative analyses of flavonoids in the rhizome of Belamcanda chinensis by combining laser-microdissection with UHPLC-Q/TOF-MS and UHPLC-QqQ-MS. Talanta 2014; 130:585-97. [PMID: 25159450 DOI: 10.1016/j.talanta.2014.07.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/25/2014] [Accepted: 07/01/2014] [Indexed: 11/20/2022]
Abstract
The rhizome of Belamcanda chinensis (L.) DC. is a traditionally used medicinal material in China. Due to increasing demand, B. chinensis has been cultivated widely, and thus the study on its rational utilization of medicinal part and guidelines for the optimal cultivation and harvest is an important issue. Considering flavonoids were the main bioactive secondary metabolites of B. chinensis, fluorescence microscopy, laser microdissection (LMD), ultra-high performance liquid chromatography-quadrupole/time-of-flight-mass spectrometry (UHPLC-Q/TOF-MS), and UHPLC coupled with triple quadrupole mass spectrometer (UHPLC-QqQ-MS) were applied to profile and determine flavonoids in various tissues in this study. Consequently, 43 peaks were detected by UHPLC-Q/TOF-MS, and 26 flavonoid compounds combined with seven triterpene compounds were identified or tentatively identified in the tissue extractions. The results indicated that the hydrophobic compounds, especially flavonoid or isoflavonoid aglycones and xanthone mainly accumulated in the cork, whereas the hydrophilic compounds, namely the flavonoid and isoflavonoid glycosides were usually found in the cortex or center (the part inside of endodermis). Samples of rhizomes from different growth ages and origins were simultaneously analyzed. It was shown that the bulb or lateral part of the rhizome generally possessed more total flavonoids than the vertical part or the primordium. The present study established a new practical method to evaluate the quality of the rhizome of B. chinensis and to explore the relationship between distribution patterns of secondary metabolites and growth years of plants, thus important information for cultivation and processing was provided.
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Wu C, Zhang X, Zhang X, Luan H, Sun G, Sun X, Wang X, Guo P, Xu X. The caffeoylquinic acid-rich Pandanus tectorius fruit extract increases insulin sensitivity and regulates hepatic glucose and lipid metabolism in diabetic db/db mice. J Nutr Biochem 2013; 25:412-9. [PMID: 24629909 DOI: 10.1016/j.jnutbio.2013.12.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 12/02/2013] [Accepted: 12/02/2013] [Indexed: 12/31/2022]
Abstract
Caffeoylquinic acids (CQAs) are widely distributed in various foods. While some CQAs have been shown to possess antihyperglycemic activities, whether it is beneficial for diabetes patients to ingest CQA-rich foods has still to be known. In this work, the antihyperglycemic and antihyperlipidemic effects of CQA-rich Pandanus tectorius fruit extract (PTF) was investigated in diabetic db/db mice. Treatment with PTF (200 mg/kg) significantly decreased body weight and fasting glucose level, alleviated hyperinsulinism and hyperlipidemia and declined glucose area under the curve in oral glucose tolerance test and insulin tolerance test. The elevated levels of serum proinflammatory cytokines and islet hypertrophy in db/db mice were remarkably attenuated by PTF treatment. Biochemical analysis showed that administration of PTF significantly stimulated the phosphorylation of AMP-activated protein kinase (AMPK) and Akt substract of 160 kDa (AS160), and enhanced the expression and translocation of glucose transporter type 4 (GLUT4) in skeletal muscles. It also increased the activity of hexokinase, decreased the expression of glucose 6-phosphatase and phosphoenolpyruvate carboxykinase and switched the transcription of several key lipid metabolic genes in the liver, which, in turn, improved hepatic glucose and lipid profiles as determined by nuclear magnetic resonance-based metabolomics. Overall, the CQA-rich PTF is beneficial for the treatment of diabetes. It may alleviate hyperglycemia and dyslipidemia via activation of AMPK-AS160-GLUT4 pathway in skeletal muscles and inhibition of gluconeogenesis and lipogenesis in the liver.
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Affiliation(s)
- Chongming Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China
| | - Xiaopo Zhang
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China
| | - Xue Zhang
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China
| | - Hong Luan
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China
| | - Guibo Sun
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China
| | - Xiaobo Sun
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China
| | - Xiaoliang Wang
- Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Peng Guo
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China.
| | - Xudong Xu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100094, China.
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Wan LS, Chen CP, Xiao ZQ, Wang YL, Min QX, Yue Y, Chen J. In vitro and in vivo anti-diabetic activity of Swertia kouitchensis extract. JOURNAL OF ETHNOPHARMACOLOGY 2013; 147:622-630. [PMID: 23567032 DOI: 10.1016/j.jep.2013.03.052] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 03/15/2013] [Accepted: 03/18/2013] [Indexed: 06/02/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Swertia kouitchensis has long been used as a folk medicine to treat hepatitis and diabetes in central-western China. Therefore, this study was aimed to evaluate the anti-diabetic activity of the plant ethanol extract. MATERIALS AND METHODS Firstly, the extract was tested for its inhibitory activity on α-amylase and α-glucosidase in vitro. Following that, insulin secretion test in NIT-1 cell was performed. Then, oral sucrose or starch tolerance test of the extract were carried out in normal mice. After that, acute effect of the extract was executed in normal and streptozotocin-induced (60 mg/kg) diabetic mice. Eventually, long term effect of the extract was performed in diabetic mice for 4 weeks. Oral glucose tolerance test and biochemical parameters were estimated at the end of the study. RESULTS Swertia kouitchensis extract could remarkably inhibit the activity of α-amylase and α-glucosidase and stimulate insulin secretion in vitro. And also the extract displayed anti-hyperglycemic activity, improved antioxidant capacity, ameliorated the hyperlipidemia and carbohydrate metabolism in diabetic mice. CONCLUSIONS Swertia kouitchensis exhibits considerable anti-diabetic activity and metabolic alterations in diabetic mice. These results provide a rationale for the use of Swertia kouitchensis to treat diabetes mellitus.
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Affiliation(s)
- Luo-sheng Wan
- Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, Tongji School of Pharmaceutical Sciences, Huazhong University of Science and Technology, People's Republic of China
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Zaruwa MZ, Manosroi A, Akihisa T, Manosroi W, Rangdaeng S, Manosroi J. Hypoglycemic activity of the Anisopus mannii N. E. Br. methanolic leaf extract in normal and alloxan-induced diabetic mice. ACTA ACUST UNITED AC 2013; 10:/j/jcim.2013.10.issue-1/jcim-2012-0037/jcim-2012-0037.xml. [DOI: 10.1515/jcim-2012-0037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2011] [Accepted: 04/26/2013] [Indexed: 11/15/2022]
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Pandeya KB, Tripathi IP, Mishra MK, Dwivedi N, Pardhi Y, Kamal A, Gupta P, Dwivedi N, Mishra C. A Critical Review on Traditional Herbal Drugs: An Emerging Alternative Drug for Diabetes. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ijoc.2013.31001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Iristectorigenin B isolated from Belamcanda chinensis is a liver X receptor modulator that increases ABCA1 and ABCG1 expression in macrophage RAW 264.7 cells. Biotechnol Lett 2012; 34:2213-21. [DOI: 10.1007/s10529-012-1036-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Accepted: 08/15/2012] [Indexed: 10/27/2022]
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Liu YT, Sun J, Luo ZY, Rao SQ, Su YJ, Xu RR, Yang YJ. Chemical composition of five wild edible mushrooms collected from Southwest China and their antihyperglycemic and antioxidant activity. Food Chem Toxicol 2012; 50:1238-44. [DOI: 10.1016/j.fct.2012.01.023] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 01/15/2012] [Accepted: 01/17/2012] [Indexed: 11/29/2022]
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Gandhi GR, Sasikumar P. Antidiabetic effect of Merremia emarginata Burm. F. in streptozotocin induced diabetic rats. Asian Pac J Trop Biomed 2012; 2:281-6. [PMID: 23569914 PMCID: PMC3609299 DOI: 10.1016/s2221-1691(12)60023-9] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2011] [Revised: 11/03/2011] [Accepted: 11/25/2011] [Indexed: 01/16/2023] Open
Abstract
OBJECTIVE To investigate the antidiabetic property of Merremia emarginata (M. emarginata) Burm. F. plant in streptozotocin induced diabetic rats. METHODS The dose dependent effects of 28 days oral treatment with methanol extract (100, 200 and 400 mg/kg) from the plant of M. emarginata on blood glucose level, body weight, insulin, total hemoglobin, glycosylated haemoglobin (HbA1C), total protein, serum urea, serum creatinine and carbohydrate metabolizing enzymes were evaluated in streptozotocin induced diabetic rats. Histology of pancreas was also studied. RESULTS A significant decrease in blood glucose, serum urea and serum creatinine and significant increase in body weight, insulin and protein level were observed in diabetic rats treated with M. emarginata. Treatment with M. emarginata resulted in a significant reduction of HbA1C and an increase in total hemoglobin level. The activities of carbohydrate metabolizing enzymes such as hexokinase were significantly increased whereas glucose-6-phosphatase, fructose-1, 6-bisphosphatase were significantly decreased by the administration of M. emarginata in diabetic rats. Histology of diabetic rats treated with M. emarginata showed the pancreatic β-cells regeneration. CONCLUSIONS These findings suggest that M. emarginata has potent antidiabetic activity in streptozotocin induced diabetic rats.
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Affiliation(s)
- G Rajiv Gandhi
- Division of Ethnopharmacology, Loyola College, Chennai, India-600 034
| | - P Sasikumar
- Department of Biochemistry, School of Biological Sciences, Madurai Kamaraj University, Madurai, India-625 021
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Chueh WH, Lin JY. Protective effect of berberine on serum glucose levels in non-obese diabetic mice. Int Immunopharmacol 2012; 12:534-8. [DOI: 10.1016/j.intimp.2012.01.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Accepted: 01/05/2012] [Indexed: 12/14/2022]
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Gandhi GR, Ignacimuthu S, Paulraj MG, Sasikumar P. Antihyperglycemic activity and antidiabetic effect of methyl caffeate isolated from Solanum torvum Swartz. fruit in streptozotocin induced diabetic rats. Eur J Pharmacol 2011; 670:623-31. [PMID: 21963451 DOI: 10.1016/j.ejphar.2011.09.159] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 09/05/2011] [Accepted: 09/11/2011] [Indexed: 10/17/2022]
Abstract
Natural remedies from medicinal plants are considered to be effective and safe alternatives to treat diabetes mellitus. Solanum torvum Swartz. fruit is widely used in the traditional system of medicine to treat diabetes. In the present study methyl caffeate, isolated from S. torvum fruit, was screened for its efficacy in controlling diabetes in animal models. Antihyperglycemic effect of methyl caffeate was studied in normal glucose-fed rats. The effects of oral administration of methyl caffeate (10, 20 and 40 mg/kg) for 28 days on body weight, fasting blood glucose, plasma insulin, hemoglobin, glycated hemoglobin, total protein, hepatic glycogen and carbohydrate metabolism enzymes in streptozotocin induced diabetic rats were investigated. Histological observations in the pancreas and GLUT4 expression in skeletal muscles were also studied. Methyl caffeate at 40 mg/kg significantly prevented the increase in blood glucose level after glucose administration at 60 min in comparison to the hyperglycemic control group. In streptozotocin induced diabetic rats, methyl caffeate produced significant reduction in blood glucose and increased body weight. The levels and/or activities of other biochemical parameters were near normal due to treatment with methyl caffeate. Methyl caffeate treated diabetic rats showed upregulation of GLUT4 and regeneration of β-cells in the pancreas. These results substantiated that methyl caffeate possessed hypoglycemic effect, and it could be developed into a potent oral antidiabetic drug.
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Affiliation(s)
- Gopalsamy Rajiv Gandhi
- Division of Ethnopharmacology, Entomology Research Institute, Loyola College, Chennai 600 034, India
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Zhang YY, Wang Q, Qi LW, Qin XY, Qin MJ. Characterization and determination of the major constituents in Belamcandae Rhizoma by HPLC–DAD–ESI-MSn. J Pharm Biomed Anal 2011; 56:304-14. [DOI: 10.1016/j.jpba.2011.05.040] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2011] [Revised: 05/18/2011] [Accepted: 05/27/2011] [Indexed: 10/18/2022]
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