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Li BL, Chen JY, Hu JJ, Fan YW, Ao ZY, Zhang WJ, Lian X, Liang HJ, Li QR, Guan XX, Wu JW, Yuan J, Jiang DX. Three stilbenes from pigeon pea with promising anti-methicillin-resistant Staphylococcus aureus biofilm formation activity. Int Microbiol 2024; 27:535-544. [PMID: 37505307 DOI: 10.1007/s10123-023-00413-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/17/2023] [Accepted: 07/22/2023] [Indexed: 07/29/2023]
Abstract
Cajaninstilbene acid (CSA), longistylin A (LLA), and longistylin C (LLC) are three characteristic stilbenes isolated from pigeon pea. The objective of this study was to evaluate the antibacterial activity of these stilbenes against Staphylococcus aureus and even methicillin-resistant Staphylococcus aureus (MRSA) and test the possibility of inhibiting biofilm formation. The minimum inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) of these stilbenes were evaluated. And the results showed that LLA was most effective against tested strains with MIC and MBC values of 1.56 μg/mL followed by LLC with MIC and MBC values of 3.12 μg/mL and 6.25 μg/mL as well as CSA with MIC and MBC values of 6.25 μg/mL and 6.25-12.5 μg/mL. Through growth curve and cytotoxicity analysis, the concentrations of these stilbenes were determined to be set at their respective 1/4 MIC in the follow-up research. In an anti-biofilm formation assay, these stilbenes were found to be effectively inhibited bacterial proliferation, biofilm formation, and key gene expressions related to the adhesion and virulence of MRSA. It is the first time that the anti-S. aureus and MRSA activities of the three stilbenes have been systematically reported. Conclusively, these findings provide insight into the anti-MRSA mechanism of stilbenes from pigeon pea, indicating these compounds may be used as antimicrobial agents or additives for food with health functions, and contribute to the development as well as application of pigeon pea in food science.
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Affiliation(s)
- Bai-Lin Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
- Key Laboratory of South China Agricultural Plant Molecular Analysis and Genetic Improvement, Core Botanical Garden, South China Botanical Garden, Chinese Academy of Sciences, Guangdong Provincial Key Laboratory of Applied Botany, Guangzhou, 510650, P. R. China
| | - Jia-Yan Chen
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Juan-Juan Hu
- Laboratory for Functional Foods and Human Health, Center for Excellence in Post-Harvest Technologies, North Carolina Agricultural and Technical State University, Kannapolis, NC, 28081, USA
| | - Yu-Wen Fan
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Zhuo-Yi Ao
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Wei-Jie Zhang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Xin Lian
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Hui-Jun Liang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Qian-Ran Li
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Xiao-Xian Guan
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Jie-Wei Wu
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
| | - Jie Yuan
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China.
| | - Dong-Xu Jiang
- School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, P. R. China
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Stilbene B10 induces apoptosis and tumor suppression in lymphoid Raji cells by BTK-mediated regulation of the KRAS/HDAC1/EP300/PEBP1 axis. Biomed Pharmacother 2022; 156:113887. [DOI: 10.1016/j.biopha.2022.113887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 10/12/2022] [Accepted: 10/14/2022] [Indexed: 11/20/2022] Open
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Huang Y, Wang N, Zhao H. In vivo activities of the structured lipids -1, 3-dioleic acid 2-palmitic acid triglyceride (OPO) in high-fat diet mice. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zhang S, Wang L, Yang J, Wang J, Fu L, Fu Y. New insights in the chemical profiling of major metabolites in different pigeon pea cultivars using UPLC-QqQ-MS/MS. Food Res Int 2022; 156:111131. [DOI: 10.1016/j.foodres.2022.111131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 03/10/2022] [Accepted: 03/11/2022] [Indexed: 11/04/2022]
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5
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Jia Y, Zhang L, Liu Z, Mao C, Ma Z, Li W, Yu F, Wang Y, Huang Y, Zhang W, Zheng J, Wang X, Xu Q, Zhang J, Feng W, Yun C, Liu C, Sun J, Fu Y, Cui Q, Kong W. Targeting macrophage TFEB-14-3-3 epsilon Interface by naringenin inhibits abdominal aortic aneurysm. Cell Discov 2022; 8:21. [PMID: 35228523 PMCID: PMC8885854 DOI: 10.1038/s41421-021-00363-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/08/2021] [Indexed: 12/14/2022] Open
Abstract
Abdominal aortic aneurysm (AAA) is a lethal cardiovascular disease, and there is no proven drug treatment for this condition. In this study, by using the Connectivity Map (CMap) approach, we explored naringenin, a naturally occurring citrus flavonoid, as a putative agent for inhibiting AAA. We then validated the prediction with two independent mouse models of AAA, calcium phosphate (CaPO4)-induced C57BL/6J mice and angiotensin II-infused ApoE−/− mice. Naringenin effectively blocked the formation of AAAs and the progression of established AAAs. Transcription factor EB (TFEB) is the master regulator of lysosome biogenesis. Intriguingly, the protective role of naringenin on AAA was abolished by macrophage-specific TFEB depletion in mice. Unbiased interactomics, combined with isothermal titration calorimetry (ITC) and cellular thermal shift assays (CETSAs), further revealed that naringenin is directly bound to 14-3-3 epsilon blocked the TFEB-14-3-3 epsilon interaction, and therefore promoted TFEB nuclear translocation and activation. On one hand, naringenin activated lysosome-dependent inhibition of the NLRP3 inflammasome and repressed aneurysmal inflammation. On the other hand, naringenin induced TFEB-dependent transcriptional activation of GATA3, IRF4, and STAT6 and therefore promoted reparative M2 macrophage polarization. In summary, naturally derived naringenin or macrophage TFEB activation shows promising efficacy for the treatment of AAA.
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Affiliation(s)
- Yiting Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Lu Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.,The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Ziyi Liu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Chenfeng Mao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Zihan Ma
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Wenqiang Li
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Fang Yu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Yingbao Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Yaqian Huang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Weizhen Zhang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Jingang Zheng
- Department of Cardiology, China-Japan Friendship Hospital, Beijing, China
| | - Xian Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Qingbo Xu
- Cardiovascular Division, Kings College London BHF Centre, London, SE5 9NU, UK
| | - Jian Zhang
- State Key Laboratory of Oncogenes and Related Genes, Medicinal Chemistry & Bioinformatics Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Feng
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Caihong Yun
- Institute of Systems Biomedicine, School of Basic Medical Sciences, Peking University Health Science Center, Beijing, China
| | - Chuanju Liu
- Department of Orthopedic Surgery, New York University Medical Center, New York, NY, USA.,Department of Cell Biology, New York University School of Medicine, New York, NY, USA
| | - Jinpeng Sun
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Yi Fu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China
| | - Qinghua Cui
- Department of Biomedical Informatics, School of Basic Medical Sciences, Peking University, Beijing, China.
| | - Wei Kong
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University; Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.
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Luo ZH, Liu ZW, Mao Y, Shu R, Fu LC, Yang RY, Hu YJ, Shen XL. Cajanolactone A, a stilbenoid from cajanus cajan, prevents ovariectomy-induced obesity and liver steatosis in mice fed a regular diet. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2020; 78:153290. [PMID: 32777485 DOI: 10.1016/j.phymed.2020.153290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 07/03/2020] [Accepted: 07/23/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Visceral obesity and fatty liver are prevalent in postmenopausal women. The stilbene-rich extract of Cajanus cajan (L.) Millsp. has been reported to prevent ovariectomy-induced and diet-induced weight gain in animal models, and stilbenoids from C. cajan are thought to have the potential to prevent postmenopausal obesity and fatty liver. PURPOSE Cajanolactone A (CLA) is the main stilbenoid from C. cajan with osteoblastogenic promoting activity. This study investigated the potential of CLA to prevent postmenopausal obesity and fatty liver. Underlying mechanisms were also investigated. METHOD Ovariectomized C57BL/6 mice fed a regular diet were used as mimics of postmenopausal women and given 10, 20, or 40 mg/kg/d of CLA, 0.1 mg/kg/d of estradiol valerate (EV, positive control), or vehicle (OVX) orally for 16 weeks. Mice of the same age subjected to a sham operation were used as control (Sham). Body weights were recorded every 2 weeks for 16 weeks. Body compositions were analyzed via micro-CT. Serum levels of lipids, adipocytokines and aminotransferases were measured using the relevant kits. mRNA levels of genes of interest were detected by RT-qPCR. Proteomic study of perigonadal white adipose tissue (pWAT) was performed using tandem-mass-tags-based proteomic technology combined with Parallel-Reaction-Monitoring (PRM) validation. RESULTS CLA showed potential equivalent to that of EV to prevent ovariectomy-induced overweight, obesity, dyslipidemia, liver steatosis and liver dysfunction, but did not prevent uterine atrophy. In the liver, CLA significantly inhibited ovariectomy-induced upregulation in expression of lipogenic genes SREBP-1c and ChREBP, and stimulated the mRNA expression of apolipoprotein B gene ApoB. In pWAT, CLA reversed, or partially reversed ovariectomy-induced downregulation in the expression of a number of metabolism- and mitochondrial-function-related proteins, including Ndufa3, Pcx, Pdhb, Acly, Acaca, Aldh2, Aacs and Echs1. In addition, ovariectomy-inhibited mRNA expression of Pdhb, Aacs, Acsm5, Echs1, and Aldh2 genes in pWAT was also reversed. CONCLUSION CLA was demonstrated to be a potential non-estrogen-like drug candidate for prevention of postmenopausal obesity and fatty liver. The underlying mechanism might involve the inhibition of lipogenesis and promotion of triglycerides output in the liver, and the promotion of metabolism and mitochondrial functions of visceral white adipose tissue.
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Affiliation(s)
- Zhuo-Hui Luo
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Zhi-Wen Liu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Yu Mao
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Rong Shu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Lin-Chun Fu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Rui-Yi Yang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China
| | - Ying-Jie Hu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China.
| | - Xiao-Ling Shen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong, PR China.
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7
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Sinan KI, Mahomoodally MF, Eyupoglu OE, Etienne OK, Sadeer NB, Ak G, Behl T, Zengin G. HPLC-FRAP methodology and biological activities of different stem bark extracts of Cajanus cajan (L.) Millsp. J Pharm Biomed Anal 2020; 192:113678. [PMID: 33120308 DOI: 10.1016/j.jpba.2020.113678] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/28/2020] [Accepted: 10/05/2020] [Indexed: 12/17/2022]
Abstract
Cajanus cajan. (L.) Millsp. (C. cajan) (Family: Fabaceae) also known as pigeon pea, is a famous food and cover/forage crop bearing a high amount of key amino acids (methionine, lysine and tryptophan). This study investigated into the total phenolic (TPC), flavonoid content (TFC), antioxidant [2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2 -azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), ferric reducing antioxidant power (FRAP), cupric reducing antioxidant capacity, total antioxidant capacity (TAC) (phosphomolybdenum) and metal chelating] activities and enzyme [α-amylase, α-glucosidase, tyrosinase, acetyl-(AChE), butyryl-(BChE) cholinesterase] inhibitory effects of four extracts (methanol, hexane, ethyl acetate, aqueous) prepared from C. cajan stem bark. Direct identification of antioxidants was also conducted using the high performance liquid chromatography-ferric reducing antioxidant power (HPLC-FRAP) system. The highest TPC and TFC were recorded with the methanolic (23.22 ± 0.17 mg GAE/g) and ethyl acetate extracts (19.43 ± 0.24 mg RE/g), respectively. The methanolic extract exhibited important antioxidant activity with DPPH (38.41 ± 0.05 mg Trolox equivalent (TE)/g), ABTS (70.49 ± 3.62 mg TE/g), CUPRAC (81.86 ± 2.40 mg TE/g), FRAP (42.96 ± 0.59 mg TE/g) and metal chelating (17.00 ± 1.26 mg ethylenediaminetetraacetic acid equivalent/g). p-coumaric and caffeic acid were the predominant antioxidants in the samples. Results from enzymatic assays showed the potential abilities of hexane extract in inhibiting the AChE, BChE, α-amylase and α-glucosidase enzymes. From the results obtained in this study, it can be concluded that C. cajan can be considered as a promising source of antioxidants and key enzyme inhibitors that can be exploited for future bioproduct development.
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Affiliation(s)
| | - Mohamad Fawzi Mahomoodally
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, 230 Réduit, Mauritius.
| | - Ozan Emre Eyupoglu
- Department of Biochemistry, School of Pharmacy, Istanbul Medipol University, Turkey
| | - Ouattara Katinan Etienne
- Laboratoire de Botanique, UFR Biosciences, Université Félix Houphouët-Boigny, Abidjan, Cote d'Ivoire
| | - Nabeelah Bibi Sadeer
- Department of Health Sciences, Faculty of Medicine and Health Sciences, University of Mauritius, 230 Réduit, Mauritius
| | - Gunes Ak
- Department of Biology, Science Faculty, Selcuk University, Campus, Konya, Turkey
| | - Tapan Behl
- Chitkara College of Pharmacy, Chitkara University, Punjab, India
| | - Gokhan Zengin
- Department of Biology, Science Faculty, Selcuk University, Campus, Konya, Turkey.
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Hsiao YT, Wang CY. Microbial Shelf-Life, Starch Physicochemical Properties, and in Vitro Digestibility of Pigeon Pea Milk Altered by High Pressure Processing. Molecules 2020; 25:E2516. [PMID: 32481610 PMCID: PMC7321331 DOI: 10.3390/molecules25112516] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/25/2020] [Accepted: 05/25/2020] [Indexed: 12/02/2022] Open
Abstract
This study examined the effects of high-pressure processing (HPP) on microbial shelf-life, starch contents, and starch gelatinization characteristics of pigeon pea milk. HPP at 200 MPa/240 s, 400 MPa/210 s, and 600 MPa/150 s reduced the count of Escherichia coli O157:H7 in pigeon pea milk by more than 5 log CFU/mL. During the subsequent 21-day refrigerated storage period, the same level of microbial safety was achieved in both HPP-treated and high-temperature short-time (HTST)-pasteurized pigeon pea milk. Differential scanning calorimetry and scanning electron microscope revealed that HPP at 600 MPa and HTST caused a higher degree of gelatinization in pigeon pea milk, with enthalpy of gelatinization (∆H) being undetectable for both treatments. In contrast, HPP at 400 MPa led to an increase in the onset temperature, peak temperature, and conclusion temperature, and a decrease in ∆H, with gelatinization percentages only reaching 18.4%. Results of an in vitro digestibility experiment indicate that maximum resistant starch and slowly digestible starch contents as well as a decreased glycemic index were achieved with HPP at 400 MPa. These results demonstrate that HPP not only prolongs the shelf-life of pigeon pea milk but also alters the structural characteristics of starches and enhances the nutritional value.
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Affiliation(s)
| | - Chung-Yi Wang
- Department of Biotechnology, National Formosa University, Yunlin 632, Taiwan;
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Nam DE, Yun JM, Kim D, Kim OK. Policosanol Attenuates Cholesterol Synthesis via AMPK Activation in Hypercholesterolemic Rats. J Med Food 2019; 22:1110-1117. [PMID: 31613687 DOI: 10.1089/jmf.2019.4491] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study was carried out to investigate the effects of policosanol on high-fat and high-cholesterol diet-induced hypercholesterolemic rats to provide strong evidence in support of its hypocholesterolemic effect. The hypercholesterolemic rats showed elevations in liver weight, total triglycerides, total cholesterol, and low-density lipoprotein (LDL) cholesterol in serum; however, policosanol supplementation reduced these markers significantly. In addition, we found that policosanol supplementation stimulated an increase in fecal cholesterol and bile acid contents and deactivated 3-hydroxy-3-methylglutaryl-CoA (HMG-CoA) reductase by AMP-activated protein kinase (AMPK) phosphorylation during high-fat and high-cholesterol-containing diet-induced development of hypercholesterolemia. Policosanol supplementation decreased ApoB levels and increased LDL-receptor expression, but it did not affect the hepatic ACAT2 level in livers from hypercholesterolemic rats. Moreover, supplementation with policosanol significantly decreased aortic wall thickness and levels of P-selectin and soluble vascular cell adhesion molecule (sVCAM-1) in serum. In conclusion, we suggest that policosanol supplementation induces antihypercholesterolemia by inhibiting cholesterol biosynthesis, LDL cholesterol uptake, and cholesterol excretion.
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Affiliation(s)
- Da-Eun Nam
- Carter Immunology Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Jeong-Moon Yun
- Research Institute of Clinical Nutrition, Kyung Hee University, Seoul, Korea
| | - Dakyung Kim
- Research Institute of Clinical Nutrition, Kyung Hee University, Seoul, Korea
| | - Ok-Kyung Kim
- Division of Food and Nutrition and Human Ecology Research Institute, Chonnam National University, Gwangju, Korea
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Prenylated stilbenes and flavonoids from the leaves of Cajanus cajan. Chin J Nat Med 2019; 17:381-386. [DOI: 10.1016/s1875-5364(19)30044-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Indexed: 11/24/2022]
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The Cholesterol-Modulating Effect of Methanol Extract of Pigeon Pea ( Cajanus cajan (L.) Millsp.) Leaves on Regulating LDLR and PCSK9 Expression in HepG2 Cells. Molecules 2019; 24:molecules24030493. [PMID: 30704067 PMCID: PMC6385019 DOI: 10.3390/molecules24030493] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 01/22/2019] [Accepted: 01/29/2019] [Indexed: 12/13/2022] Open
Abstract
Pigeon pea (Cajanus cajan (L.) Millsp.) is a legume crop consumed as an indigenous vegetable in the human diet and a traditional medicinal plant with therapeutic properties. The current study highlights the cholesterol-modulating effect and underlying mechanisms of the methanol extract of Cajanus cajan L. leaves (MECC) in HepG2 cells. We found that MECC increased the LDLR expression, the cell-surface LDLR levels and the LDL uptake activity in HepG2 cells. We further demonstrated that MECC suppressed the proprotein convertase subtilisin/kexin type 9 (PCSK9) mRNA and protein expression, but not affected the expression of other cholesterol or lipid metabolism-related genes including inducible degrader of LDLR (IDOL), HMG-CoA reductase (HMGCR), fatty acid synthase (FASN), acetyl-CoA carboxylase (ACC1), and liver X receptor-α (LXR-α) in HepG2 cells. Furthermore, we demonstrated that MECC down-regulated the PCSK9 gene expression through reducing the amount of nuclear hepatocyte nuclear factor-1α (HNF-1α), a major transcriptional regulator for activation of PCSK9 promoter, but not that of nuclear sterol-responsive element binding protein-2 (SREBP-2) in HepG2 cells. Finally, we identified the cajaninstilbene acid, a main bioactive stilbene component in MECC, which significantly modulated the LDLR and PCSK9 expression in HepG2 cells. Our current data suggest that the cajaninstilbene acid may contribute to the hypocholesterolemic activity of Cajanus cajan L. leaves. Our findings support that the extract of Cajanus cajan L. leaves may serve as a cholesterol-lowering agent.
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Cajanolactone A from Cajanus cajan Promoted Osteoblast Differentiation in Human Bone Marrow Mesenchymal Stem Cells via Stimulating Wnt/LRP5/β-Catenin Signaling. Molecules 2019; 24:molecules24020271. [PMID: 30642055 PMCID: PMC6358999 DOI: 10.3390/molecules24020271] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 12/30/2018] [Accepted: 01/09/2019] [Indexed: 01/01/2023] Open
Abstract
Cajanolactone A (CLA) is a stilbenoid discovered by us from Cajanus cajan (L.) Millsp. In our study, CLA was found to promote osteoblast differentiation in human bone marrow mesenchymal stem cells (hBMSCs), as judged by increased cellular alkaline phosphatase activity and extracellular calcium deposits, and elevated protein expression of Runx2, collagen-1, bone morphogenetic protein-2, and osteopontin. Mechanistic studies revealed that hBMSCs undergoing osteoblast differentiation expressed upregulated mRNA levels of Wnt3a, Wnt10b, LRP5/6, Frizzled 4, β-catenin, Runx2, and Osterix from the early stage of differentiation, indicating the role of activated Wnt/β-catenin signaling pathway in osteoblast differentiation. Addition of CLA to the differentiation medium further increased the mRNA level of Wnt3a, Wnt10b, Frizzled 4, LRP5, and β-catenin, inferring that CLA worked by stimulating Wnt/LRP5/β-catenin signaling. Wnt inhibitor dickkopf-1 antagonized CLA-promoted osteoblastogenesis, indicating that CLA did not target the downstream of canonical Wnt signaling pathway. Treatment with CLA caused no changes in mRNA expression level, as well as protein secretion of osteoprotegerin (OPG) and receptor activator of nuclear factor kappa-B ligand (RANKL), indicating that CLA did not affect the OPG/RANKL axis. Our results showed that CLA, which promoted osteoblast differentiation in hBMSCs, through activating Wnt/LRP5/β-catenin signaling transduction, is a promising anti-osteoporotic drug candidate.
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Tan CX, Chong GH, Hamzah H, Ghazali HM. Effect of virgin avocado oil on diet-induced hypercholesterolemia in rats via 1
H NMR-based metabolomics approach. Phytother Res 2018; 32:2264-2274. [DOI: 10.1002/ptr.6164] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Chin Xuan Tan
- Department of Food Science, Faculty of Food Science and Technology; Universiti Putra Malaysia; Serdang Selangor Malaysia
| | - Gun Hean Chong
- Department of Food Technology, Faculty of Food Science and Technology; Universiti Putra, Malaysia; Serdang Selangor Malaysia
| | - Hazilawati Hamzah
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Selangor Malaysia
| | - Hasanah Mohd Ghazali
- Department of Food Science, Faculty of Food Science and Technology; Universiti Putra Malaysia; Serdang Selangor Malaysia
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14
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Tan CX, Chong GH, Hamzah H, Ghazali HM. Hypocholesterolaemic and hepatoprotective effects of virgin avocado oil in diet-induced hypercholesterolaemia rats. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13880] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Chin Xuan Tan
- Department of Food Science; Faculty of Food Science and Technology; Universiti Putra Malaysia; Serdang Selangor 43400 UPM Malaysia
| | - Gun Hean Chong
- Department of Food Technology; Faculty of Food Science and Technology; Universiti Putra Malaysia; Serdang Selangor 43400 UPM Malaysia
| | - Hazilawati Hamzah
- Department of Veterinary Pathology and Microbiology; Faculty of Veterinary Medicine; Universiti Putra Malaysia; Serdang Selangor 43400 UPM Malaysia
| | - Hasanah Mohd Ghazali
- Department of Food Science; Faculty of Food Science and Technology; Universiti Putra Malaysia; Serdang Selangor 43400 UPM Malaysia
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Flavonoid fraction of Cajanus cajan prohibited the mutagenic properties of cyclophosphamide in mice in vivo. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2018; 826:1-5. [PMID: 29412864 DOI: 10.1016/j.mrgentox.2017.12.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 11/24/2017] [Accepted: 12/11/2017] [Indexed: 12/25/2022]
Abstract
Cajanus cajan (L.) is a Pigeon pea cultivated in tropical and subtropical areas. It contains many bioactive components. The present study aimed to assess the antimutagenic efficacy of a flavonoid fraction of Cajanus cajan (FFCC) to reduce cytotoxicity and genotoxicity induced by cyclophosphamide (CP). We assessed genotoxic and cytotoxic effects using chromosome aberration, in mouse bone-marrow cells and spermatocytes, cell viability and DNA damage, in mouse bone-marrow cells. Animals received FFCC at concentrations 50,100 and 200 mg/kg b wt by oral gavage, and injected simultaneously with CP (20 mg/kg b wt) for 24 h. The results revealed that FFCC was safe and its effect was normal compared to control group. Moreover, we observed significant inhibition of CP-induced chromosome abnormalities in both, somatic and germ, cells (p ≪ 0.05) after concurrent administration of different concentrations of FFCC and CP. FFCC reduced chromosome aberrations by 14.29%, 25.21% and 28.57% in somatic cells, and 25.35%, 35.21% and 49.29% in germ cells after simultaneous treatment with CP respectively. Additionally, FFCC improved the cell viability of bone-marrow cells in a concentration-dependent manner when administered concurrently with CP. Similarly, FFCC diminished DNA damage (p ≪ 0.05) in CP-treated animals. The inhibitory index of tail DNA (%) reached 90.6% at the highest concentration of FFCC when administered simultaneously with CP. In conclusion, the flavonoid extract improved cell viability and protected animal cells from the cytotoxic and genotoxic effects exhibited by CP. Cajanus cajan flavonoids might contain the antioxidant bioactivity that effectively lessened chromosome aberrations and DNA damage induced by mutagenic agents.
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Tang R, Tian RH, Cai JZ, Wu JH, Shen XL, Hu YJ. Acute and sub-chronic toxicity of Cajanus cajan leaf extracts. PHARMACEUTICAL BIOLOGY 2017; 55:1740-1746. [PMID: 28494681 PMCID: PMC6130582 DOI: 10.1080/13880209.2017.1309556] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 03/17/2017] [Accepted: 03/17/2017] [Indexed: 06/07/2023]
Abstract
CONTEXT The leaves of Cajanus cajan (L.) Millsp. (Fabaceae) have diverse bioactivities, but little safety data are reported. OBJECTIVE This study examines the toxicological profiles of C. cajan leaf extracts. MATERIALS AND METHODS The leaves were extracted by water or 90% ethanol to obtain water or ethanol extract (WEC or EEC). EEC was suspended in water and successively fractionated into dichloroform and n-butanol extracts (DEC and BEC). Marker compounds of the extracts were monitored by high-performance liquid chromatography (HPLC). Kunming mice were administered with a single maximum acceptable oral dose (15.0 g/kg for WEC, EEC and BEC and 11.3 g/kg for DEC) to determine death rate or maximal tolerated doses (MTDs). In sub-chronic toxicity investigation, Sprague-Dawley rats were orally given WEC or EEC at 1.5, 3.0 or 6.0 g/kg doses for four weeks and observed for two weeks after dosing to determine toxicological symptoms, histopathology, biochemistry and haematology. RESULTS Flavonoids and stilbenes in the extracts were assayed. In acute toxicity test, no mortality and noted alterations in weight and behavioural abnormality were observed, and the maximum oral doses were estimated as MTDs. In sub-chronic toxicity study, no mortality and significant variances in haematological and biochemical parameters or organ histopathology were observed, but increased kidney weight in 3.0 g/kg WEC- or 3.0 and 6.0 g/kg EEC-treated female rats, and reduced testes and epididymis weight in EEC-treated male rats were recorded. These changes returned to the level of control after recovery period. CONCLUSION Acute and sub-chronic toxicity of Cajanus cajan leaf extracts was not observed.
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Affiliation(s)
- Rong Tang
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Baiyun Qu, Guangzhou, China
| | - Ru-hua Tian
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Baiyun Qu, Guangzhou, China
| | - Jia-zhong Cai
- Pi-Wei Institute, Guangzhou University of Chinese Medicine, Baiyun Qu, Guangzhou, China
| | - Jun-hui Wu
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Baiyun Qu, Guangzhou, China
| | - Xiao-ling Shen
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Baiyun Qu, Guangzhou, China
| | - Ying-jie Hu
- Tropical Medicine Institute, Guangzhou University of Chinese Medicine, Baiyun Qu, Guangzhou, China
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Mathew D, P. LJ, T.M. M, P. D, V.T.K. SR. Therapeutic molecules for multiple human diseases identified from pigeon pea ( Cajanus cajan L. Millsp.) through GC–MS and molecular docking. FOOD SCIENCE AND HUMAN WELLNESS 2017. [DOI: 10.1016/j.fshw.2017.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Agus S, Achmadi SS, Mubarik NR. Antibacterial activity of naringenin-rich fraction of pigeon pea leaves toward Salmonella thypi. Asian Pac J Trop Biomed 2017. [DOI: 10.1016/j.apjtb.2017.07.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Wang LS, Tao X, Pan RL, Cao FR, Feng L, Liao YH, Liu XM, Chang Q. Pharmacokinetics of Cajaninstilbene Acid and Its Main Glucuronide Metabolite in Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:4066-4073. [PMID: 28485147 DOI: 10.1021/acs.jafc.7b00743] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
As a major active stilbene from the leaves of pigeon pea (Cajanus cajan), cajaninstilbene acid (CSA) exerts various pharmacological activities. The present study aimed to investigate the pharmacokinetics of CSA and one of its main metabolites (M1) to explore their fate in the body and provide a pharmacokinetic foundation for their in vivo biological activities and functional food or complementary medicine application. M1 was characterized as CSA-3-O-glucuronide using the multiple reaction monitoring-information-dependent acquisition-enhanced product ion technique. After oral and intravenous administration, plasma, urine, and bile were collected and analyzed to estimate pharmacokinetic properties of CSA and M1 and to explore the main excretion route. The oral bioavailability of CSA was estimated to be 44.36%. This study first reported that CSA is mainly metabolized to CSA-3-O-glucuronide via the first-pass effect to limit its oral bioavailability and excreted predominantly through the biliary route, while the enterohepatic circulation, extravascular distribution, and renal reabsorption characteristics of CSA might delay its elimination.
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Affiliation(s)
- Li-Sha Wang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Xue Tao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Rui-Le Pan
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Fang-Rui Cao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Li Feng
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Yong-Hong Liao
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Xin-Min Liu
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
| | - Qi Chang
- Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100193, People's Republic of China
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He K, Li X, Xiao Y, Yong Y, Zhang Z, Li S, Zhou T, Yang D, Gao P, Xin X. Hypolipidemic effects of Myrica rubra extracts and main compounds in C57BL/6j mice. Food Funct 2016; 7:3505-15. [PMID: 27459037 DOI: 10.1039/c6fo00623j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The present study evaluated the antihyperlipidemic activity of myricetin, myricetrin, the alcohol fraction (AF) and the ethyl acetate fraction (EF) obtained from the bark of Myrica rubra (MR) in high-fat and high-cholesterol (HFHC) induced hyperlipidemic C57BL/6j mice. Mice were treated with myricetin, myricetrin, AF and EF with a dose of 130 mg per kg per day for 35 days. After treatment, serum parameters including total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), total bile acids (TBA), etc., were examined. The results revealed that EF showed the highest weight lowering activity (P < 0.01). All tested samples decreased the levels of the TC, TG, LDL-C, TBA and LPS (lipopolysaccharide) content in the serum of mice to different extents. Liver fat deposition was significantly reduced after myricetin, myricetrin, AF and EF therapy (P < 0.01). Additionally, the cell size of epididymal adipose tissue was also decreased in myricetin, AF and EF groups (P < 0.05). The antihyperlipidemic activity of these samples may be attributed to the inhibition of lipid synthesis via suppressing the expression of HMGCR (3-hydroxy-3-methylglutaryl coenzyme A reductase) and ACC1 (acetyl-CoA carboxylase), promoting the metabolism and excretion of lipids via up-regulating the expression of SREBP2 (sterol regulatory element binding proteins), LDLR (low density lipoprotein receptor), UCP2 (uncoupling protein 2) and CYP7A1 (cholesterol 7α-hydroxylase). These results may provide a powerful foundation for seeking and utilizing Myrica rubra bio-active compounds for the treatment of hyperlipidemia and cardiovascular diseases.
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Affiliation(s)
- Kai He
- Department of Clinical Laboratory, Hunan University of Medicine, Hunan, 418000, China.
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Schuster R, Holzer W, Doerfler H, Weckwerth W, Viernstein H, Okonogi S, Mueller M. Cajanus cajan – a source of PPARγ activators leading to anti-inflammatory and cytotoxic effects. Food Funct 2016; 7:3798-806. [DOI: 10.1039/c6fo00689b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cajanus cajan is an important legume crop in the human diet in many parts of the world.
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Affiliation(s)
- Roswitha Schuster
- Department of Pharmaceutical Technology and Biopharmaceutics
- University of Vienna
- A-1090 Vienna
- Austria
| | - Wolfgang Holzer
- Department of Pharmaceutical Chemistry – Division of Drug Synthesis
- University of Vienna
- A-1090 Vienna
- Austria
| | - Hannes Doerfler
- Department of Ecogenomics and Systems Biology
- University of Vienna
- A-1090 Vienna
- Austria
| | - Wolfram Weckwerth
- Department of Ecogenomics and Systems Biology
- University of Vienna
- A-1090 Vienna
- Austria
- Vienna Metabolomics Center (VIME)
| | - Helmut Viernstein
- Department of Pharmaceutical Technology and Biopharmaceutics
- University of Vienna
- A-1090 Vienna
- Austria
| | - Siriporn Okonogi
- Department of Pharmaceutical Sciences
- Faculty of Pharmacy
- Chiang Mai University
- Chiang Mai 50200
- Thailand
| | - Monika Mueller
- Department of Pharmaceutical Technology and Biopharmaceutics
- University of Vienna
- A-1090 Vienna
- Austria
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A Halogen-Containing Stilbene Derivative from the Leaves of Cajanus cajan that Induces Osteogenic Differentiation of Human Mesenchymal Stem Cells. Molecules 2015; 20:10839-47. [PMID: 26111172 PMCID: PMC6272782 DOI: 10.3390/molecules200610839] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 06/05/2015] [Accepted: 06/09/2015] [Indexed: 01/29/2023] Open
Abstract
A new natural halogen-containing stilbene derivative was isolated from the leaves of Cajanus cajan (L.) Millsp. and identified as 3-O-(3-chloro-2-hydroxyl-propanyl)-longistylin A by comprehensive spectroscopic and chemical analysis, and named cajanstilbene H (1). It is the first halogen-containing stilbene derivative found from plants. In human mesenchymal stem cells (hMSC) from bone marrow, 1 did not promote cell proliferation, but distinctly enhanced osteogenic differentiation of hMSC in time- and dose-dependent manners. In six human cancer cell lines, 1 showed a moderate inhibitory effect on cell proliferation, with IC50 values of 21.42–25.85 μmol·L−1.
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Shan Y, Hong T, Wang YF, Zhang NL, Yu B, Lu Y, Qiu SX. Synthesis and cytotoxicity of longistylin C derivatives. Chin J Nat Med 2015; 13:311-5. [PMID: 25908631 DOI: 10.1016/s1875-5364(15)30021-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2014] [Indexed: 11/30/2022]
Abstract
The present study was designed to identify potent anti-tumor compounds from a series of new longistylin C derivatives. Ten longistylin C derivatives were synthesized and their structures were confirmed by (1)H NMR, MS, and elemental analyses. Their cytotoxicity in vitro against three human cancer cell lines (A549, HepG2, and MCF-7) were evaluated by the MTT assay. Among these compounds, DT-6 and DT-9 displayed much better cytotoxicity against A549, HepG2, and MCF-7 cells, DT-1 exhibited selective cytotoxicity against HepG2, and the structure-activity relationships were investigated. In conclusion, Compounds DT-6 and DT-9 may serve as potential lead compounds for the discovery of new anti-cancer drugs.
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Affiliation(s)
- Yan Shan
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, China
| | - Ting Hong
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, China
| | - Yan-Fei Wang
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, China
| | - Nen-Ling Zhang
- South China Botanical Garden, the Chinese Academy of Science, Guangzhou 510560, China
| | - Bo Yu
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, China
| | - Yu Lu
- Sino-German Joint Research Institute, Nanchang University, Nanchang 330047, China.
| | - Sheng-Xiang Qiu
- South China Botanical Garden, the Chinese Academy of Science, Guangzhou 510560, China.
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Bunnoy A, Saenphet K, Lumyong S, Saenphet S, Chomdej S. Monascus purpureus-fermented Thai glutinous rice reduces blood and hepatic cholesterol and hepatic steatosis concentrations in diet-induced hypercholesterolemic rats. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 15:88. [PMID: 25880551 PMCID: PMC4381394 DOI: 10.1186/s12906-015-0624-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Accepted: 03/17/2015] [Indexed: 12/19/2022]
Abstract
BACKGROUND Red yeast rice (RYR) is a fermented product used as a food supplement to promote blood circulation and lower blood cholesterol levels in eastern Asia. Interestingly, monacolin K is the most active compound in RYR that proved to inhibit HMG-CoA reductase in the cholesterol biosynthesis pathway. METHODS The hypocholesterolemic effects of oral administration of Thai RYR, produced by fermentation of Thai glutinous rice (Oryza sativa L. var. Niaw San-pah-tawng) with Monascus purpureus CMU 002U, were determined in normal and hypercholesterolemic rats. The rats were divided into six groups, and fed two different kinds of diet. Groups I-II, normal rats fed with a normal diet (SP-diet), were treated with distilled water (SP-control) and 2.0 g/kg/day of RYR extract (SP-2 g). In Groups III-VI, the rats were rendered hypercholesterolemic by feeding them a high fat and cholesterol diet (HFC-diet), and were treated with distilled water (HFC-control), 1.0 g/kg/day (HFC-1 g), 2.0 g/kg/day (HFC-2 g) of RYR extract, and 5.0 mg/kg/day of rosuvastatin (HFC-rosuvastatin) for 30 days, respectively. RESULTS The RYR extract significantly decreased the concentrations of serum total cholesterol and low density lipoprotein cholesterol (LDL-C), atherosclerotic index, LDL-C/HDL-C ratio and hepatic cholesterol levels in both HFC-1 g and HFC-2 g groups (p < 0.05) as compared with the HFC-control group, and with no significant change in high density lipoprotein cholesterol (HDL-C) concentrations among all six groups. The reduction of serum TC and LDL-C also paralleled the observed changes in mRNA expressions of the genes involved in cholesterol biosynthesis and homeostasis in the liver. The hypercholesterolemic rats treated with RYR extract were significantly higher in LDLR and HMGR expression, but lower in CYP7A1 expression when compared to the untreated hypercholesterolemic rats (HFC-control) (p < 0.05). The hepatic injuries in hypercholesterolemic rats were also obviously alleviated by RYR extract. CONCLUSIONS The extract of Thai RYR possessed potent hypocholesterolemic and anti-atherogenic activities in diet-induced hypercholesterolemic rats. The possible mechanism involving cholesterol-lowering potential of the extract might contribute to its ability to increase LDL-C endocytosis in hepatocyte and to competitively inhibit HMG-CoA reductase, a key enzyme for cholesterol biosynthesis in liver.
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Affiliation(s)
- Anurak Bunnoy
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Kanokporn Saenphet
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Saisamorn Lumyong
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Supap Saenphet
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
| | - Siriwadee Chomdej
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand.
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Serna M, Wong-Baeza C, Santiago-Hernández JC, Baeza I, Wong C. Hypocholesterolemic and choleretic effects of three dimethoxycinnamic acids in relation to 2,4,5-trimethoxycinnamic acid in rats fed with a high-cholesterol/cholate diet. Pharmacol Rep 2014; 67:553-9. [PMID: 25933969 DOI: 10.1016/j.pharep.2014.12.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 11/30/2014] [Accepted: 12/16/2014] [Indexed: 10/24/2022]
Abstract
BACKGROUND 2,4,5-Trimethoxycinnamic acid (2,4,5-TMC) is the major and non-toxic metabolite of α-asarone, which retains hypocholesterolemic and choleretic activities. We compared the activities of 2,4,5-TMC with those of 2,4-dimethoxycinnamic acid (2,4-DMC), 3,4-DMC and 3,5-DMC, to understand the role of the methoxyls on carbons 2, 4 and 5 on the pharmacologic properties of these compounds. METHODS The methoxycinnamic acids were administered to high-cholesterol/cholate-fed rats. We measured bile flow, and quantified bile acids, phospholipids and cholesterol in bile, and cholesterol and cholesterol-lipoproteins in serum. The inhibition of HMG-CoA reductase by the methoxycinnamic acids was evaluated in vitro. RESULTS The four methoxycinnamic acids decreased serum cholesterol, without affecting the concentration of HDL-cholesterol. 2,4,5-TMC produced the highest decrease in LDL-cholesterol, 73.5%, which exceeds the range of statins (20-40%), and produced the highest inhibition of the activity of HMG-CoA reductase. 3,4-DMC produced the highest increase in bile flow, bile acids and phospholipids concentrations, and reduction in bile cholesterol, which led to a decrease in the biliary cholesterol saturation index. CONCLUSIONS 2,4,5-TMC (which has three methoxyls) had the highest hypocholesterolemic activity, while 3,4-DMC, which lacks the methoxyl in carbon 2 but conserves the two other methoxyls in an adjacent position, had the highest choleretic activity and a probable cholelitholytic activity. In methoxycinnamic acids with two methoxyls in non-adjacent positions (2,4-DMC and 3,5-DMC), the hypocholesterolemic and choleretic activities were not as evident. 2,4,5-TMC and 3,4-DMC, which did not cause liver damage during the treatment period, should be further explored as a hypocholesterolemic and choleretic compounds in humans.
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Affiliation(s)
- Manuel Serna
- Biochemistry Department, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico.
| | - Carlos Wong-Baeza
- Biochemistry Department, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico.
| | | | - Isabel Baeza
- Biochemistry Department, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico.
| | - Carlos Wong
- Biochemistry Department, National School of Biological Sciences, National Polytechnic Institute, Mexico City, Mexico.
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Ashokkumar T, Prabhu D, Geetha R, Govindaraju K, Manikandan R, Arulvasu C, Singaravelu G. Apoptosis in liver cancer (HepG2) cells induced by functionalized gold nanoparticles. Colloids Surf B Biointerfaces 2014; 123:549-56. [DOI: 10.1016/j.colsurfb.2014.09.051] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Revised: 09/20/2014] [Accepted: 09/25/2014] [Indexed: 11/24/2022]
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Cajaninstilbene acid protects corticosterone-induced injury in PC12 cells by inhibiting oxidative and endoplasmic reticulum stress-mediated apoptosis. Neurochem Int 2014; 78:43-52. [PMID: 25193317 DOI: 10.1016/j.neuint.2014.08.007] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 08/21/2014] [Accepted: 08/23/2014] [Indexed: 01/13/2023]
Abstract
It has been reported that high corticosterone level could damage the normal hippocampal neurons both in vitro and in vivo. Furthermore, high concentration of corticosterone induced impair in PC12 cells has been widely used as in vitro model to screen neuroprotective agents. Cajaninstilbene acid (CSA), a natural stilbene isolated from Cajanus cajan leaves, has various activities. In present study, we investigated the effect of CSA on corticosterone-induced cell apoptosis and explored its possible signaling pathways in PC12 cells. We demonstrated that pretreatment with CSA at the concentrations of 1-8 μmol/L remarkably reduced the cytotoxicity induced by 200 μmol/L of corticosterone in PC12 cells by MTT, and further confirmed the neuroprotection by Hoechst 33342 and PI double staining and lactate dehydrogenase release (LDH) assay at the concentration of 8 μmol/L. Moreover, the cytoprotection of CSA was proved to be associated with the homeostasis of intracellular Ca(2+), relieving corticosterone-induced oxidative stress by decreasing the contents of ROS and malondialdehyde (MDA), increasing the activities of superoxide dismutase (SOD) and catalase (CAT), and the stabilization of ER stress via down-regulating the expression of ER chaperone protein glucose-regulated protein 78 (GRP78), ER stress associated transcription factor C/EBP homologous protein (CHOP/GADD153), and the X box-binding protein-1 (XBP-1), as well as the expression of ER stress-specific protein caspase-12 and its downstream protein caspase-9. Considering all the findings, it is suggested that the neuroprotective activity of CSA against the impairment induced by corticosterone in PC12 cells was through the inhibition of oxidative stress and ER stress-mediated pathway.
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Patel NK, Bhutani KK. Pinostrobin and Cajanus lactone isolated from Cajanus cajan (L.) leaves inhibits TNF-α and IL-1β production: in vitro and in vivo experimentation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2014; 21:946-953. [PMID: 24680612 DOI: 10.1016/j.phymed.2014.02.011] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2013] [Revised: 12/21/2013] [Accepted: 02/22/2014] [Indexed: 06/03/2023]
Abstract
The tumor necrosis factor alpha (TNF-α) and interleukin 1 beta (IL-1β) inhibitory activities of Cajanus cajan (leaves) crude methanolic extract, its fractions and its phytochemical constituents were evaluated in lipopolysaccharide (LPS) stimulated RAW 264.7 and J774A.1 cells. Phytochemical investigation of the active ethyl acetate (CCE) and n-butanol (CCB) fractions of C. cajan L. leaves yielded 14 compounds. It was observed that both pinostrobin (9) and cajanus lactone (4) were found to be most active in inhibiting TNF-α (IC50<22 μM) and IL-1β (IC50<40 μM) whereas compounds 2, 3, 5-8, 10 and 14 showed moderate and mild effects (IC50=35.50-81.22 μM for TNF-α and 38.23-89.10 μM for IL-1β) in both the cell lines. Furthermore, at dose of 20mg/kg, both pinostrobin (9) and cajanus lactone (4) were found to reduce LPS-induced TNF-α levels by 48.6% and 55.0% respectively and IL-1β levels by 53.1% and 41.8% respectively in Sprague Dawley (SD) rats. These findings suggest that C. cajan L. leaves can be developed as an effective herbal remedy for the treatment and prevention of inflammation or associated ailments.
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Affiliation(s)
- Neeraj K Patel
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali 160062, Punjab, India
| | - Kamlesh K Bhutani
- Department of Natural Products, National Institute of Pharmaceutical Education and Research (NIPER), Sector 67, S.A.S. Nagar, Mohali 160062, Punjab, India.
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Nahar L, Nasrin F, Zahan R, Haque A, Haque E, Mosaddik A. Comparative study of antidiabetic activity of Cajanus cajan and Tamarindus indica in alloxan-induced diabetic mice with a reference to in vitro antioxidant activity. Pharmacognosy Res 2014; 6:180-7. [PMID: 24761124 PMCID: PMC3996756 DOI: 10.4103/0974-8490.129043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2012] [Revised: 07/25/2012] [Accepted: 03/18/2014] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Oxidative stress not only develops complications in diabetic (type 1 and type 2) but also contributes to beta cell destruction in type 2 diabetes in insulin resistance hyperglycemia. Glucose control plays an important role in the pro-oxidant/antioxidant balance. Some antidiabetic agents may by themselves have antioxidant properties independently of their role on glucose control. OBJECTIVE The present investigation draws a comparison of the protective antioxidant activity, total phenol content and the antihyperglycemic activity of the methanolic extract of Cajanus cajan root (MCC) and Tamarindus indica seeds (MTI). MATERIALS AND METHODS Antidiabetic potentials of the plant extracts were evaluated in alloxan-induced diabetic Swiss albino mice. The plant extracts at the doses of 200 and 400 mg/kg body weight was orally administered for glucose tolerance test during 1-hour study and hypoglycemic effect during 5-day study period in comparison with reference drug Metformin HCl (50 mg/kg). In vitro antioxidant potential of MCC and MTI was investigated by using 1, 1- diphenyl-2-picrylhydrazyl (DPPH) free radical scavenging activity at 517 nm. Total phenolic content, total antioxidant capacity and reducing power activity was also assayed. RESULTS There was a significant decrease in fasting serum glucose level (P < 0.001), reduction in blood glucose level (P < 0.001) in 5-days study, observed in the alloxan-induced diabetic mice. The reduction efficacy of blood glucose level of both the extracts is proportional to their dose but MCC is more potent than MTI. Antioxidant study and quantification of phenolic compound of both the extracts revealed that they have high antioxidant capacity. CONCLUSION These studies showed that MCC and MTI have both hypoglycemic and antioxidant potential but MCC is more potent than MTI. The present study suggests that both MCC and MTI could be used in managing oxidative stress.
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Affiliation(s)
- Laizuman Nahar
- Department of Pharmacy, University of Rajshahi, Rajshahi, Bangladesh
| | - Fatema Nasrin
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
| | - Ronok Zahan
- Department of Pharmacy, University of Rajshahi, Rajshahi, Bangladesh
| | - Anamul Haque
- Department of Pharmacy, Southeast University, Dhaka, Bangladesh
| | - Ekramul Haque
- Department of Pharmacy, University of Rajshahi, Rajshahi, Bangladesh
| | - Ashik Mosaddik
- Department of Pharmacy, University of Rajshahi, Rajshahi, Bangladesh
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Li XL, Zhao BX, Huang XJ, Zhang DM, Jiang RW, Li YJ, Jian YQ, Wang Y, Li YL, Ye WC. (+)- and (-)-Cajanusine, a pair of new enantiomeric stilbene dimers with a new skeleton from the leaves of Cajanus cajan. Org Lett 2013; 16:224-7. [PMID: 24295169 DOI: 10.1021/ol403211a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A pair of new enantiomeric stilbene dimers, (+)- and (-)-cajanusine [(+)-1 and (-)-1], with a unique coupling pattern were isolated from the leaves of Cajanus cajan . Their structures including absolute configurations were elucidated on the basis of comprehensive spectroscopic and single-crystal X-ray diffraction analyses, as well as CD calculations. The plausible biogenetic pathway of 1 was also proposed. Additionally, (±)-1, (+)-1, and (-)-1 exhibited inhibitory activities on the growth of human hepatocellular carcinoma cells.
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Affiliation(s)
- Xiao-Long Li
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy, Jinan University , Guangzhou 510632, People's Republic of China
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Wei ZF, Jin S, Luo M, Pan YZ, Li TT, Qi XL, Efferth T, Fu YJ, Zu YG. Variation in contents of main active components and antioxidant activity in leaves of different pigeon pea cultivars during growth. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:10002-10009. [PMID: 24066714 DOI: 10.1021/jf402455m] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Pigeon pea is an important and multiuse grain legume crop, and its leaves are a very valuable natural resource. To obtain a high-quality biological resource, it is necessary to choose the excellent cultivar and determine the appropriate harvest time. In this study, the variation in contents of main active components and antioxidant activity in leaves of six pigeon pea cultivars during growth were investigated. The level of each individual active component significantly varied during growth, but with a different pattern, and this variation was different among cultivars. Flavonoid glycosides orientin, vitexin, and apigenin-6,8-di-C-α-L-arabinopyranoside showed two peak values at mid-late and final stages of growth in most cases. Pinostrobin chalcone, longistyline C, and cajaninstilbene acid showed remarkablely higher values at the mid-late stage of growth than at other stages. Pinostrobin had an extremely different variation pattern compared to other active components. Its content was the highest at the earlier stage of growth. Principal component analysis (PCA) revealed that vitexin and apigenin-6,8-di-C-α-L-arabinopyranoside were mainly responsible for distinguishing cultivars analyzed. In a comprehensive consideration, the leaves should preferentially be harvested at the 135th day after sowing when the level of active components and antioxidant activity reached higher values. Cultivars ICP 13092, ICPL 87091, and ICPL 96053 were considered to be excellent cultivars with high antioxidant activity. Our findings can provide valuable information for producing a high-quality pigeon pea resource.
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Affiliation(s)
- Zuo-Fu Wei
- Key Laboratory of Forest Plant Ecology, Ministry of Education, and §Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University , Harbin, Heilongjiang 150040, People's Republic of China
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32
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Ionic liquids-based microwave-assisted extraction of active components from pigeon pea leaves for quantitative analysis. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2012.09.031] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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33
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Fardet A, Chardigny JM. Plant-Based Foods as a Source of Lipotropes for Human Nutrition: A Survey of In Vivo Studies. Crit Rev Food Sci Nutr 2013; 53:535-90. [DOI: 10.1080/10408398.2010.549596] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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34
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Dai FJ, Hsu WH, Huang JJ, Wu SC. Effect of pigeon pea (Cajanus cajan L.) on high-fat diet-induced hypercholesterolemia in hamsters. Food Chem Toxicol 2012; 53:384-91. [PMID: 23287313 DOI: 10.1016/j.fct.2012.12.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 12/08/2012] [Accepted: 12/19/2012] [Indexed: 11/26/2022]
Abstract
Obesity is associated with increased systemic and airway oxidative stress, which may result from a combination of adipokine imbalance and antioxidant defenses reduction. Obesity-mediated oxidative stress plays an important role in the pathogenesis of dyslipidemia, vascular disease, and nonalcoholic hepatic steatosis. The antidyslipidemic activity of pigeon pea were evaluated by high-fat diet (HFD) hamsters model, in which the level of high-density lipoprotein-cholesterol (HDL-C), low-density lipoprotein-cholesterol (LDL-C), total cholesterol (TC), and total triglyceride (TG) were examined. We found that pigeon pea administration promoted cholesterol converting to bile acid in HFD-induced hamsters, thereby exerting hypolipidemic activity. In the statistical results, pigeon pea significantly increased hepatic carnitine palmitoyltransferase-1 (CPT-1), LDL receptor, and cholesterol 7α-hydroxylase (also known as cytochrome P450 7A1, CYP7A1) expression to attenuate dyslipidemia in HFD-fed hamsters; and markedly elevated antioxidant enzymes in the liver of HFD-induced hamsters, further alleviating lipid peroxidation. These effects may attribute to pigeon pea contained large of unsaturated fatty acids (UFA; C18:2) and phytosterol (β-sitosterol, campesterol, and stigmasterol). Moreover, the effects of pigeon pea on dyslipidemia were greater than β-sitosterol administration (4%), suggesting that phytosterone in pigeon pea could prevent metabolic syndrome.
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Affiliation(s)
- Fan-Jhen Dai
- Department of Food Science, College of Life Science, National Chiayi University, No. 300, Syue fu Road, Chiayi City 60004, Taiwan, ROC
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35
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Ji X, Jin J, Zheng G, Li Z. (E)-2-Hy-droxy-4-meth-oxy-3-(3-methyl-but-2-en-yl)-6-styryl-benzoic acid. Acta Crystallogr Sect E Struct Rep Online 2012; 69:o91. [PMID: 23476472 PMCID: PMC3588336 DOI: 10.1107/s1600536812050258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Accepted: 12/10/2012] [Indexed: 11/10/2022]
Abstract
The title compound, C21H22O4, also known as cajanine, features an intra-molecular O-H⋯O hydrogen bond between the adjacent carb-oxy and hy-droxy groups. The benzene rings make an inter-planar angle of 175.4 (2)°. In the crystal, mol-ecules are linked by pairs of O-H⋯O hydrogen bonds, forming inversion dimers.
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Affiliation(s)
- Xingyue Ji
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, People's Republic of China
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36
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Zhang DM, Li Y, Cheang WS, Lau CW, Lin SM, Zhang QL, Yao N, Wang Y, Wu X, Huang Y, Ye WC. Cajaninstilbene acid relaxes rat renal arteries: roles of Ca2+ antagonism and protein kinase C-dependent mechanism. PLoS One 2012; 7:e47030. [PMID: 23056567 PMCID: PMC3467215 DOI: 10.1371/journal.pone.0047030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Accepted: 09/07/2012] [Indexed: 11/30/2022] Open
Abstract
Cajaninstilbene acid (CSA) is a major active component present in the leaves of Cajanus cajan (L.) Millsp. The present study explores the underlying cellular mechanisms for CSA-induced relaxation in rat renal arteries. Vascular reactivity was examined in arterial rings that were suspended in a Multi Myograph System and the expression of signaling proteins was assessed by Western blotting method. CSA (0.1–10 µM) produced relaxations in rings pre-contracted by phenylephrine, serotonin, 9, 11-dideoxy-9α, 11α-epoxymethanoprostaglandin F2α (U46619), and 60 mM KCl. CSA-induced relaxations did not show difference between genders and were unaffected by endothelium denudation, nor by treatment with NG-nitro-L-arginine methyl ester, indomethacin, ICI-182780, tetraethylammonium ion, BaCl2, glibenclamide, 4-aminopyridine or propranolol. CSA reduced contraction induced by CaCl2 (0.01–5 mM) in Ca2+-free 60 mM KCl solution and by 30 nM (−)-Bay K8644 in 15 mM KCl solution. CSA inhibited 60 mM KCl-induced Ca2+ influx in smooth muscle of renal arteries. In addition, CSA inhibited contraction evoked by phorbol 12-myristate 13-acetate (PMA, protein kinase C agonist) in Ca2+-free Krebs solution. Moreover, CSA reduced the U46619- and PMA-induced phosphorylation of myosin light chain (MLC) at Ser19 and myosin phosphatase target subunit 1 (MYPT1) at Thr853 which was associated with vasoconstriction. CSA also lowered the phosphorylation of protein kinase C (PKCδ) at Thr505. In summary, the present results suggest that CSA relaxes renal arteries in vitro via multiple cellular mechanisms involving partial inhibition of calcium entry via nifedipine-sensitive calcium channels, protein kinase C and Rho kinase.
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Affiliation(s)
- Dong-Mei Zhang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
| | - Yong Li
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
| | - Wai San Cheang
- Institute of Vascular Medicine, Li Ka Shing Institute of Health Sciences and School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Chi Wai Lau
- Institute of Vascular Medicine, Li Ka Shing Institute of Health Sciences and School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, China
| | - Shun-Ming Lin
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
| | - Qian-Lan Zhang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
| | - Nan Yao
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
| | - Ying Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
| | - Xin Wu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
| | - Yu Huang
- Institute of Vascular Medicine, Li Ka Shing Institute of Health Sciences and School of Biomedical Sciences, Chinese University of Hong Kong, Hong Kong, China
- * E-mail: (WCY); (YH)
| | - Wen-Cai Ye
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, China
- Guangdong Province Key Laboratory of Pharmacodynamic Constituents of Traditional Chinese Medicine and New Drugs Research, Jinan University, Guangzhou, China
- * E-mail: (WCY); (YH)
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37
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Pal D, Mishra P, Sachan N, Ghosh AK. Biological activities and medicinal properties of Cajanus cajan (L) Millsp. J Adv Pharm Technol Res 2012; 2:207-14. [PMID: 22247887 PMCID: PMC3255353 DOI: 10.4103/2231-4040.90874] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Cajanus cajan (L) Millsp. (Sanskrit: Adhaki, Hindi: Arhar, English: Pigeon pea, Bengali: Tur) (family: Fabaceae) is the most important grain legume crop of rain-fed agriculture in semi-arid tropics. It is both a food crop and a cover/forage crop with high levels of proteins and important amino acids like methionine, lysine and tryptophan. During the last few decades extensive studies have been carried out regarding the chemistry of C. cajan and considerable progress has been achieved regarding its biological activities and medicinal applications. This review article gives an overview on the biological activities of the compounds isolated, pharmacological actions and clinical studies of C. cajan extracts apart from its general details.
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Affiliation(s)
- Dilipkumar Pal
- Division of Pharmaceutical Chemistry, School of Pharmaceutical Sciences, IFTM University, Lodhipur Rajput, Moradabad, Uttar Pradesh, India
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38
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Ji XY, Xue ST, Zheng GH, Han YX, Liu ZY, Jiang JD, Li ZR. Total synthesis of cajanine and its antiproliferative activity against human hepatoma cells. Acta Pharm Sin B 2011. [DOI: 10.1016/j.apsb.2011.06.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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39
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Anti-atherogenic and anti-angiogenic activities of polyphenols from propolis. J Nutr Biochem 2011; 23:557-66. [PMID: 21764281 DOI: 10.1016/j.jnutbio.2011.02.012] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2010] [Revised: 01/10/2011] [Accepted: 02/22/2011] [Indexed: 11/21/2022]
Abstract
Propolis is a polyphenol-rich resinous substance extensively used to improve health and prevent diseases. The effects of polyphenols from different sources of propolis on atherosclerotic lesions and inflammatory and angiogenic factors were investigated in LDL receptor gene (LDLr-/-) knockout mice. The animals received a cholesterol-enriched diet to induce the initial atherosclerotic lesions (IALs) or advanced atherosclerotic lesions (AALs). The IAL or AAL animals were divided into three groups, each receiving polyphenols from either the green, red or brown propolis (250 mg/kg per day) by gavage. After 4 weeks of polyphenol treatment, the animals were sacrificed and their blood was collected for lipid profile analysis. The atheromatous lesions at the aortic root were also analyzed for gene expression of inflammatory and angiogenic factors by quantitative real-time polymerase chain reaction and immunohistochemistry. All three polyphenol extracts improved the lipid profile and decreased the atherosclerotic lesion area in IAL animals. However, only polyphenols from the red propolis induced favorable changes in the lipid profiles and reduced the lesion areas in AAL mice. In IAL groups, VCAM, MCP-1, FGF, PDGF, VEGF, PECAM and MMP-9 gene expression was down-regulated, while the metalloproteinase inhibitor TIMP-1 gene was up-regulated by all polyphenol extracts. In contrast, for advanced lesions, only the polyphenols from red propolis induced the down-regulation of CD36 and the up-regulation of HO-1 and TIMP-1 when compared to polyphenols from the other two types of propolis. In conclusion, polyphenols from propolis, particularly red propolis, are able to reduce atherosclerotic lesions through mechanisms including the modulation of inflammatory and angiogenic factors.
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Liu W, Kong Y, Zu Y, Fu Y, Luo M, Zhang L, Li J. Determination and quantification of active phenolic compounds in pigeon pea leaves and its medicinal product using liquid chromatography–tandem mass spectrometry. J Chromatogr A 2011; 1217:4723-31. [PMID: 20965080 DOI: 10.1016/j.chroma.2010.05.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2009] [Revised: 04/20/2010] [Accepted: 05/11/2010] [Indexed: 11/17/2022]
Abstract
A novel method using liquid chromatography coupled to electrospray ionization mass spectrometry (LC-ESI-MS) has been optimized and established for the qualitative and quantitative analysis of ten active phenolic compounds originating from the pigeon pea leaves and a medicinal product thereof (Tongluo Shenggu capsules). In the present study, the chromatographic separation was achieved by means of a HiQ Sil C18V reversed-phase column with a mobile phase consisting of methanol and 0.1% formic acid aqueous solution. Low-energy collision-induced dissociation tandem mass spectrometry (CID-MS/MS) using the selected reaction monitoring (SRM) analysis was employed for the detection of ten analytes which included six flavonoids, two isoflavonoids and two stilbenes. All calibration curves showed excellent coefficients of determination (r(2) ≥ 0.9937) within the range of tested concentrations. The intra- and inter-day variations were below 5.36% in terms of relative standard deviation (RSD). The recoveries were 95.08-104.98% with RSDs of 2.06-4.26% for spiked samples of pigeon pea leaves. The method developed was a rapid, efficient and accurate LC-MS/MS method for the detection of phenolic compounds, which can be applied for quality control of pigeon pea leaves and related medicinal products.
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Affiliation(s)
- Wei Liu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
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41
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Wu N, Kong Y, Fu Y, Zu Y, Yang Z, Yang M, Peng X, Efferth T. In vitro antioxidant properties, DNA damage protective activity, and xanthine oxidase inhibitory effect of cajaninstilbene acid, a stilbene compound derived from pigeon pea [Cajanus cajan (L.) Millsp.] leaves. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:437-443. [PMID: 21128613 DOI: 10.1021/jf103970b] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The antioxidant properties, DNA damage protective activities, and xanthine oxidase (XOD) inhibitory effect of cajaninstilbene acid (CSA) derived from pigeon pea leaves were studied in the present work. Compared with resveratrol, CSA showed stronger antioxidant properties, DNA damage protective activity, and XOD inhibition activity. The IC(50) values of CSA for superoxide radical scavenging, hydroxyl radical scavenging, nitric oxide scavenging, reducing power, lipid peroxidation, and XOD inhibition were 19.03, 6.36, 39.65, 20.41, 20.58, and 3.62 μM, respectively. CSA possessed good protective activity from oxidative DNA damage. Furthermore, molecular docking indicated that CSA was more potent than resveratrol or allopurinol to interact with the active site of XOD (calculated free binding energy: -229.71 kcal mol(-1)). On the basis of the results, we conclude that CSA represents a valuable natural antioxidant source and may potentially be applicable in health food industry.
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Affiliation(s)
- Nan Wu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
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42
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Liu W, Zu YG, Fu YJ, Kong Y, Ma W, Yang M, Li J, Wu N. Variation in contents of phenolic compounds during growth and post-harvest storage of pigeon pea seedlings. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.01.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Liu W, Zhang S, Zu YG, Fu YJ, Ma W, Zhang DY, Kong Y, Li XJ. Preliminary enrichment and separation of genistein and apigenin from extracts of pigeon pea roots by macroporous resins. BIORESOURCE TECHNOLOGY 2010; 101:4667-75. [PMID: 20153169 DOI: 10.1016/j.biortech.2010.01.058] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Revised: 01/10/2010] [Accepted: 01/14/2010] [Indexed: 05/28/2023]
Abstract
Enrichment and separation of genistein and apigenin from extracts of pigeon pea roots were studied using eleven macroporous resins with different physical and chemical properties. ADS-5 resin showed the maximum effectiveness among the tested resins. The solute affinity towards ADS-5 resin at different temperatures was described in terms of Langmuir and Freundlich isotherms, and the equilibrium experimental data were well-fitted to the two isotherms. In order to optimize the operating parameters for separating genistein and apigenin, dynamic adsorption and desorption tests were carried out. After one run treatment with ADS-5 resin, the contents of genistein and apigenin in the product were 9.36-fold and 11.09-fold increased with recovery yields of 89.78% and 93.41%, respectively. The process achieved easy and effective enrichment and separation of genistein and apigenin by using ADS-5 resin, and it is a promising basis for large-scale preparation of genistein and apigenin from pigeon pea or other plants extracts.
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Affiliation(s)
- Wei Liu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China
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44
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Kong Y, Zu YG, Fu YJ, Liu W, Chang FR, Li J, Chen YH, Zhang S, Gu CB. Optimization of microwave-assisted extraction of cajaninstilbene acid and pinostrobin from pigeonpea leaves followed by RP-HPLC-DAD determination. J Food Compost Anal 2010. [DOI: 10.1016/j.jfca.2009.12.009] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Protective effect of stilbenes containing extract-fraction from Cajanus cajan L. on Abeta(25-35)-induced cognitive deficits in mice. Neurosci Lett 2009; 467:159-63. [PMID: 19833171 DOI: 10.1016/j.neulet.2009.10.029] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2009] [Revised: 09/22/2009] [Accepted: 10/08/2009] [Indexed: 11/20/2022]
Abstract
Cajanus cajan (L.) is a traditional Chinese herb medicine which contains a lot of potential active components. In the present study, we identified the effects of the stilbenes containing extract-fraction from C. cajan L. (sECC) on Abeta(25-35)-induced cognitive deficits, oxidative stress and cholinergic dysfunction in mice. Mice were treated with sECC (100 and 200mg/kg/d) for 1-week, and then received a single intracerebroventricular (i.c.v.) injection of Abeta(25-35) (5mug/mice). Behavioral changes and neuron apoptosis in mice were evaluated using Morris water maze and TUNEL tests. Furthermore, superoxide dismutase (SOD), choline acetyl transferase (ChAT) and acetylcholine esterase (AchE) activity in hippocampus and cortex were analyzed by spectrophotometric method. The data showed that consumption of sECC (200mg/kg) significantly ameliorated the cognitive deficits and neuron apoptosis caused by i.c.v. injection of Abeta(25-35). At the same time, the decreased SOD and ChAT activity in hippocampus and cortex were markedly increased by sECC (200mg/kg). sECC has no effect on AchE activity in hippocampus and cortex. These findings suggest that sECC may be a potential candidate for the development of therapeutic agents to manage cognitive impairment associated with Alzheimer's disease (AD) through increasing the activity of ChAT and anti-oxidative mechanism.
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Ogunbinu AO, Flamini G, Cioni PL, Adebayo MA, Ogunwande IA. Constituents of Cajanus Cajan(L.) Millsp., Moringa OleiferaLam., Heliotropium IndicumL. and Bidens PilosaL. from Nigeria. Nat Prod Commun 2009. [DOI: 10.1177/1934578x0900400427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The essential oils of four plant species from Nigeria have been extracted by hydrodistillation and analyzed by GC and GC-MS. The oils of Cajanus cajan were comprised of sesquiterpenes (92.5%, 81.2% and 94.3% respectively in the leaves, stem and seeds). The major compounds identified were α-himachalene (9.0-11.5%), β-himachalene (8.0-11.0%), γ-himachalene (6.9-8.1%), α-humulene (7.1-8.7%) and α-copaene (4.5-5.6%). However, monoterpenoid compounds (81.8%) dominated the oil of Moringa oleifera with an abundance of α-phellandrene (25.2%) and p-cymene (24.9%). On the other hand, aldehydes (52.8%) occurred in the highest amount in Heliotropium indicum, represented by phenylacetaldehyde (22.2%), ( E)-2-nonenal (8.3%) and (E, Z)-2-nonadienal (6.1%), with a significant quantity of hexahydrofarnesylacetone (8.4%). The leaf and stem oils of Bidens pilosa were dominated by sesquiterpenes (82.3% and 59.3%, respectively). The main compounds in the leaf oil were caryophyllene oxide (37.0%), β-caryophyllene (10.5%) and humulene oxide (6.0%), while the stem oils had an abundance of hexahydrofarnesyl acetone (13.4%), δ-cadinene (12.0%) and caryophyllene oxide (11.0%). The observed chemical patterns differ considerably from previous investigations.
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Affiliation(s)
| | - Guido Flamini
- Dipartimento di Chimica Bioorganica e Biofarmacia, Universita di Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Pier L. Cioni
- Dipartimento di Chimica Bioorganica e Biofarmacia, Universita di Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | | | - Isiaka A. Ogunwande
- Natural Product Research Unit, Department of Chemistry, Faculty of Science, Lagos State University, Badagry Expressway, P. M. B. 0001, Lasu Post Office, Ojo, Lagos, Nigeria
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Antioxidant activities of extracts and main components of Pigeonpea [Cajanus cajan (L.) Millsp.] leaves. Molecules 2009; 14:1032-43. [PMID: 19305357 PMCID: PMC6253773 DOI: 10.3390/molecules14031032] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2008] [Revised: 01/06/2009] [Accepted: 02/24/2009] [Indexed: 11/20/2022] Open
Abstract
Antioxidant activities of the aqueous and ethanol extracts of pigeonpea [Cajanuscajan (L.) Millsp.] leaves, as well as petroleum ether, ethyl acetate, n-butanol and water fractions and the four main compounds separated from the ethanol extract, i.e. cajaninstilbene acid (3-hydroxy-4-prenylmethoxystilbene-2-carboxylic acid), pinostrobin, vitexin and orientin, were examined by a DPPH radical-scavenging assay and a β-carotene-linoleic acid test. In the DPPH system, the antioxidant activity of the ethanol extracts was superior to that of the aqueous extracts, with IC50 values were 242.01 and 404.91 µg/mL, respectively. Among the four fractions, the ethyl acetate one showed the highest scavenging activity, with an IC50 value of 194.98 µg/mL. Cajaninstilbene acid (302.12 µg/mL) and orientin (316.21 µg/mL) showed more efficient radical-scavenging abilities than pinostrobin and vitexin. In the β-carotene-linoleic acid test, the inhibition ratio (%) of the ethyl acetate fraction (94.13%±3.41%) was found to be the highest, being almost equal to the inhibition capacity of the positive control BHT (93.89%±1.45%) at 4 mg/mL. Pinostrobin (>500 µg/mL) and vitexin (>500 µg/mL) showed insignificant antioxidant activities compared with cajaninstilbene (321.53 µg/mL) and orientin (444.61 µg/mL). In general, the ethyl acetate fraction of the ethanol extract showed greater activity than the main compounds in both systems, such results might be attributed to the synergistic effects of the components. The antioxidant activities of all the tested samples were concentration-dependent. Based on the results obtained, we can conclude that the pigeonpea leaf extracts may be valuable natural antioxidant sources and are potentially applicable in both medicine and the healthy food industry.
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