1
|
Huđek Turković A, Gunjača M, Marjanović M, Lovrić M, Butorac A, Rašić D, Peraica M, Vujčić Bok V, Šola I, Rusak G, Durgo K. Proteome changes in human bladder T24 cells induced by hydroquinone derived from Arctostaphylos uva-ursi herbal preparation. J Ethnopharmacol 2022; 289:115092. [PMID: 35143933 DOI: 10.1016/j.jep.2022.115092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 02/03/2022] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Arctostaphylos uva-ursi (L.) Spreng. (bearberry) is a well-known traditional herbal plant used as a urinary tract disinfectant. Its antiseptic and diuretic properties can be attributed to hydroquinone, obtained by hydrolysis of arbutin. AIM OF THE STUDY This study aimed to determine the toxic profile of free hydroquinone on urinary bladder cells (T24) as a target of therapeutic action. MATERIALS AND METHODS Quantitative and qualitative analysis of the extract and the digestive stability and bioavailability of arbutin and hydroquinone were performed by HPLC assay and simulated in vitro digestion, respectively. Cytotoxic effect, reactive oxygen species induction and proteome changes in T24 cells after hydroquinone treatment were determined using Neutral red assay, 2',7'-dichlorofluorescein-diacetate (DCFH-DA) assay and mass spectrometry, respectively. RESULTS Through in vitro digestion, arbutin was stable, but hydroquinone increased after pepsin treatment (109.6%) and then decreased after the small intestine phase (65.38%). The recommended doses of Uva-ursi had a cytotoxic effect on T24 cells only when all hydroquinone conjugates were converted to free hydroquinone (320 and 900 μg/mL) and the toxic effect was enhanced by recovery. One cup of the therapeutic dose had a prooxidative effect after 4 h of incubation. Shorter time of cell exposure (2 h) to hydroquinone did not have any impact on reactive oxygen species induction. Proteomic analysis found 17 significantly up-regulated proteins compared to control. Hydroquinone activated proteins related to oxidative stress response, stress-adaptive signalling, heat shock response and initiation of translation. CONCLUSIONS Despite the therapeutic properties of bearberry, up-regulated T24 cell proteins are evidence that plant compounds, although from a natural source, may exhibit negative properties.
Collapse
Affiliation(s)
- Ana Huđek Turković
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia.
| | - Marija Gunjača
- BICRO BIOCentre, Ltd., Central Laboratory, Borongajska cesta 83H, 10000, Zagreb, Croatia.
| | - Marko Marjanović
- BICRO BIOCentre, Ltd., Central Laboratory, Borongajska cesta 83H, 10000, Zagreb, Croatia.
| | - Marija Lovrić
- BICRO BIOCentre, Ltd., Central Laboratory, Borongajska cesta 83H, 10000, Zagreb, Croatia.
| | - Ana Butorac
- BICRO BIOCentre, Ltd., Central Laboratory, Borongajska cesta 83H, 10000, Zagreb, Croatia.
| | - Dubravka Rašić
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia.
| | - Maja Peraica
- Institute for Medical Research and Occupational Health, Ksaverska cesta 2, 10000, Zagreb, Croatia.
| | - Valerija Vujčić Bok
- Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia.
| | - Ivana Šola
- Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia.
| | - Gordana Rusak
- Department of Biology, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia.
| | - Ksenija Durgo
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000, Zagreb, Croatia.
| |
Collapse
|
2
|
Forid MS, Rahman MA, Aluwi MFFM, Uddin MN, Roy TG, Mohanta MC, Huq AKMM, Amiruddin Zakaria Z. Pharmacoinformatics and UPLC-QTOF/ESI-MS-Based Phytochemical Screening of Combretum indicum against Oxidative Stress and Alloxan-Induced Diabetes in Long-Evans Rats. Molecules 2021; 26:molecules26154634. [PMID: 34361788 PMCID: PMC8348006 DOI: 10.3390/molecules26154634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/25/2021] [Accepted: 07/25/2021] [Indexed: 12/20/2022] Open
Abstract
This research investigated a UPLC-QTOF/ESI-MS-based phytochemical profiling of Combretum indicum leaf extract (CILEx), and explored its in vitro antioxidant and in vivo antidiabetic effects in a Long-Evans rat model. After a one-week intervention, the animals' blood glucose, lipid profile, and pancreatic architectures were evaluated. UPLC-QTOF/ESI-MS fragmentation of CILEx and its eight docking-guided compounds were further dissected to evaluate their roles using bioinformatics-based network pharmacological tools. Results showed a very promising antioxidative effect of CILEx. Both doses of CILEx were found to significantly (p < 0.05) reduce blood glucose, low-density lipoprotein (LDL), and total cholesterol (TC), and increase high-density lipoprotein (HDL). Pancreatic tissue architectures were much improved compared to the diabetic control group. A computational approach revealed that schizonepetoside E, melianol, leucodelphinidin, and arbutin were highly suitable for further therapeutic assessment. Arbutin, in a Gene Ontology and PPI network study, evolved as the most prospective constituent for 203 target proteins of 48 KEGG pathways regulating immune modulation and insulin secretion to control diabetes. The fragmentation mechanisms of the compounds are consistent with the obtained effects for CILEx. Results show that the natural compounds from CILEx could exert potential antidiabetic effects through in vivo and computational study.
Collapse
MESH Headings
- Animals
- Antioxidants/chemistry
- Antioxidants/isolation & purification
- Antioxidants/pharmacology
- Arbutin/chemistry
- Arbutin/isolation & purification
- Binding Sites
- Blood Glucose/drug effects
- Cholesterol, HDL/agonists
- Cholesterol, HDL/blood
- Cholesterol, LDL/antagonists & inhibitors
- Cholesterol, LDL/blood
- Combretum/chemistry
- Computational Biology/methods
- Diabetes Mellitus, Experimental/drug therapy
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/metabolism
- Diabetes Mellitus, Experimental/pathology
- Flavonoids/chemistry
- Flavonoids/isolation & purification
- Gene Expression Profiling
- Gene Expression Regulation
- Hypoglycemic Agents/chemistry
- Hypoglycemic Agents/isolation & purification
- Hypoglycemic Agents/pharmacology
- Insulin/agonists
- Insulin/metabolism
- Male
- Models, Molecular
- Oxidative Stress/drug effects
- Pancreas/drug effects
- Pancreas/metabolism
- Pancreas/pathology
- Plant Extracts/chemistry
- Plant Leaves/chemistry
- Protein Binding
- Protein Conformation
- Rats
- Rats, Long-Evans
- Triterpenes/chemistry
- Triterpenes/isolation & purification
Collapse
Affiliation(s)
- Md. Shaekh Forid
- Department of Pharmacy, School of Science and Engineering, Southeast University, Dhaka 1213, Bangladesh;
| | - Md. Atiar Rahman
- Department of Biochemistry & Molecular Biology, University of Chittagong, Chittagong 4331, Bangladesh
- Correspondence: (M.A.R.); (A.M.H.); (Z.A.Z.); Tel.: +880-3126-060011-4 (M.A.R.); +880-1906-790224 (A.M.H.); +60-1-9211-7090 (Z.A.Z.)
| | | | - Md. Nazim Uddin
- Institute of Food Science and Technology, Bangladesh Council of Scientific and Industrial Research, Dhaka 1205, Bangladesh;
| | - Tapashi Ghosh Roy
- Department of Chemistry, University of Chittagong, Chittagong 4331, Bangladesh;
| | - Milon Chandra Mohanta
- Department of Chemistry, School of Science and Engineering, Tulane University, New Orleans, LA 70118, USA;
| | - AKM Moyeenul Huq
- Department of Pharmacy, School of Medicine, University of Asia Pacific, 74/A, Green Road, Dhaka 1205, Bangladesh
- Correspondence: (M.A.R.); (A.M.H.); (Z.A.Z.); Tel.: +880-3126-060011-4 (M.A.R.); +880-1906-790224 (A.M.H.); +60-1-9211-7090 (Z.A.Z.)
| | - Zainul Amiruddin Zakaria
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang, Serdang 43400, Selangor, Malaysia
- Correspondence: (M.A.R.); (A.M.H.); (Z.A.Z.); Tel.: +880-3126-060011-4 (M.A.R.); +880-1906-790224 (A.M.H.); +60-1-9211-7090 (Z.A.Z.)
| |
Collapse
|
3
|
Wang J, Ma YM, Yan MR, Xu Q, Qu ZR, Miao Z. [Chemical Compositions from Stems and Branches of Sorbaria arborea]. Zhong Yao Cai 2015; 38:2098-101. [PMID: 27254923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the chemical constituents from the stems and branches of Sorbaria arborea. METHODS The chemical constituents were isolated and purified by silica gel column chromatography, Sephadex LH-20 column chromatography and recrystallization. Their structures were identified by physicochemical properties and spectra analysis. RESULTS Ten compounds were isolated and identified as ursolic acid (1), cucurbitacin F (2), (-) -epicatechin (3), daucosterol (4), arbutin (5), 3-O-β-anthemisol (6), 2,6-dimethoxy-p-hydroquinone-4-O-β-D-glucopyranoside (7), lupeol (8), betulin (9) and lup-20 (29) -en-3β, 30-diol (10). CONCLUSION All the compounds are isolated from this plant for the first time, and compounds 1, 6 - 8 and 10 are obtained from Sorbaria genus for the first time.
Collapse
|
4
|
Kwiecień I, Szopa A, Madej K, Ekiert H. Arbutin production via biotransformation of hydroquinone in in vitro cultures of Aronia melanocarpa (Michx.) Elliott. Acta Biochim Pol 2013; 60:865-870. [PMID: 24432348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/07/2013] [Accepted: 12/14/2013] [Indexed: 06/03/2023]
Abstract
Arbutin (hydroquinone β-D-glucoside) is a compound of plant origin possessing valuable therapeutic (urinary tract disinfection) and cosmetic (skin whitening) properties, which can be obtained from in vitro cultures of plants belonging to different taxa via biotransformation of exogenously supplemented hydroquinone. Agitating cultures of Aronia melanocarpa were maintained on the Murashige and Skoog medium containing growth regulators: the cytokinin - BAP (6-benzylaminopurine), 2 mg/l and the auxin NAA (α-naphthaleneacetic acid), 2 mg/l. The biomass was cultured for 2 weeks and then hydroquinone was supplemented at the following doses: 96, 144, 192, 288 and 384 mg/l either undivided or divided into two or three portions added at 24-hour intervals. The content of the reaction product - arbutin, was determined using an HPLC method in methanolic extracts from biomass and lyophilized medium samples collected 24 hours after the addition of the last precursor dose. The total amounts of arbutin were very diverse, from 2.71 to 8.27 g/100g d.w. The production of arbutin rose with increasing hydroquinone concentration. The maximum content of the product was observed after hydroquinone addition at 384 mg/l divided into two portions. Biotransformation efficiency also varied widely, ranging from 37.04% do 73.80%. The identity of the product - arbutin, after its isolation and purification was confirmed by spectral analysis ((1)H-NMR spectrum). The maximum amount of arbutin obtained was higher than that required by the latest 9(th) Edition of the Polish Pharmacopoeia and by the newest 8th Edithion of European Pharmacopoeia for Uvae ursi folium (7.0 g/100g d.w.), and is interesting from practical point of view.
Collapse
Affiliation(s)
- Inga Kwiecień
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Kraków, Poland
| | - Agnieszka Szopa
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Kraków, Poland
| | - Kornelia Madej
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Kraków, Poland
| | - Halina Ekiert
- Department of Pharmaceutical Botany, Jagiellonian University, Collegium Medicum, Kraków, Poland
| |
Collapse
|
5
|
Taha MME, Salga MS, Ali HM, Abdulla MA, Abdelwahab SI, Hadi AHA. Gastroprotective activities of Turnera diffusa Willd. ex Schult. revisited: Role of arbutin. J Ethnopharmacol 2012; 141:273-281. [PMID: 22374081 DOI: 10.1016/j.jep.2012.02.030] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 01/27/2012] [Accepted: 02/10/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Turnera diffusa Willd. ex Schult. has been used for the treatment of several human disorders including peptic ulcer. OBJECTIVES OF THE STUDY The current study is an attempt to evaluate the anti-ulcerogenic activities of arbutin, a major constituent of Turnera diffusa on two ulcer models. The possible involvement of lipid peroxidation, nitric oxide, IL-6, IL-10, TNF-α and mucus barrier mechanism has been investigated. MATERIALS AND METHODS Effects of arbutin on ulcer index, gastric juice acidity, mucus content and histochemistry, gross and histological gastric lesions, nitric oxide, cytokines levels (IL-6, IL-10 and TNF-α), and thiobarbituric acid reactive substances (TBARS), were evaluated in aspirin or ethanol-induced ulcer in vivo. Acute toxicity of arbutin was also examined in rodent model. MTT assay was used to assess the cytotoxicity of the compound on normal liver cells (WRL-68). RESULTS Pre-treatment with arbutin or omeprazole protected the gastric mucosa as seen by reduction in ulcer area and mucosal content, reduced or absence of edema, inflammation and leucocytes infiltration on both models. Arbutin significantly (P<0.05) lowered the elevated TBARS level into gasteric homogenate. Arbutin did not produce significant inhibition of NO. This natural compound has modulated the levels of interleukin-6, interleukin-10 and TNF-α. No in vitro or in vivo toxicities for arbutin were observed. CONCLUSION Thus it can be concluded that Turnera diffusa possesses anti-ulcer activity, which could be attributed to lipid peroxidation inhibitory, immuno modulatory and anti-oxidant mechanisms of arbutin but not to the intervention with nitric oxide inflammation pathway.
Collapse
|
6
|
Khan S, Kardar MN, Siddiqui BS. Arbutin derivatives from the seeds of Madhuca latifolia. Nat Prod Commun 2011; 6:1661-1664. [PMID: 22224283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
A new arbutin derivative, madhuglucoside (1), along with three known arbutin derivatives were isolated from the seeds of Madhuca latifolia in addition to seven other known constituents. Their structures were established on the basis of spectral analysis. Compounds 1a, 2a and 3a were obtained in a pure state after acetylation of the mother fraction and characterized as their acetyl derivatives.
Collapse
Affiliation(s)
- Shazia Khan
- Biomass Conversion Research Center, Department of Chemical Engineering, COMSATS Institute of Information Technology, CIIT-Lahore, Pakistan.
| | | | | |
Collapse
|
7
|
Frontana-Uribe BA, Escárcega-Bobadilla MV, Estrada-Reyes R, Morales-Serna JA, Salmón M, Cárdenas J. A new languidulane diterpenoid from Salvia mexicana var. mexicana. Molecules 2011; 16:8866-73. [PMID: 22019574 PMCID: PMC6264398 DOI: 10.3390/molecules16108866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 10/17/2011] [Accepted: 10/18/2011] [Indexed: 11/17/2022] Open
Abstract
From the aerial parts of Salvia mexicana var. mexicana, two C-10 epimers (α and β) of salvimexicanolide were isolated. Our interpretation of the data, especially the 13C NMR, led us to conclude that the previously described 13C-NMR spectrum of the α-epimer was not accurately assigned and it actually corresponds to the β-epimer. The structures proposed for the salvimexicanolides were verified by means of NOESY experiments. Dugesin B, arbutin, naringenin and the mixture of oleanolic and ursolic acids were also isolated from this Salvia spp.
Collapse
Affiliation(s)
| | | | | | | | | | - Jorge Cárdenas
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510 México D.F., México; (B.A.F.-U.); (M.V.E.-B.); (R.E.-R.); (J.A.M.-S.); (M.S.)
| |
Collapse
|
8
|
Li XQ, Zhang PF, Duan WD, Zhang DL, Li C. [Studies on the chemical constituents from flower of Paulownia fortunei]. Zhong Yao Cai 2009; 32:1227-1229. [PMID: 19960943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To study the chemical constituents of the flower of Paulownia fortunei. METHODS The constituents were isolated by column chromatography and their structures were elucidated through spectroscopic analysis. RESULTS The compounds were identified as: apigenin (I), luteolin (II), Hesperetin (III), Naringenin-7-O-beta-D-glucoside (IV), Arbutin (V), 4-hydroxybenzyl-beta-D-glucoside (VI), abscisic acid (VII) and 1-acetoxy-3-hydroxypropan-2-yl-3-hydroxypentanoate (VIII). CONCLUSION All these compounds are obtained from the flower of this plant for the first time.
Collapse
Affiliation(s)
- Xiao-Qiang Li
- The Second Hospital of Lanzhou University, Lanzhou 730030, China
| | | | | | | | | |
Collapse
|
9
|
Bokesch HR, Wamiru A, Le Grice SFJ, Beutler JA, McKee TC, McMahon JB. HIV-1 ribonuclease H inhibitory phenolic glycosides from Eugenia hyemalis. J Nat Prod 2008; 71:1634-1636. [PMID: 18763827 PMCID: PMC2586124 DOI: 10.1021/np8002518] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Three new galloyl arbutins, hyemalosides A-C (1-3), along with nine known compounds were isolated from the evergreen tree Eugenia hyemalis. The structures of compounds 1-3 were determined by analysis of NMR and MS data. Compounds 1-3 inhibited HIV-1 RNase H in vitro with IC50 values of 1.46, >18, and 1.19 microM, respectively. However, in a XTT-based cell viability assay using the human T-cell line CEM-SS infected with HIV-1 RT, none of the compounds inhibited the cytopathic effect of HIV-1 infection at the highest dose tested (20 microg/mL).
Collapse
Affiliation(s)
- Heidi R. Bokesch
- Molecular Targets Development Program, NCI-Frederick, Frederick, Maryland 21702
- SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland 21702
| | - Antony Wamiru
- Molecular Targets Development Program, NCI-Frederick, Frederick, Maryland 21702
- SAIC-Frederick, Inc., NCI-Frederick, Frederick, Maryland 21702
| | | | - John A. Beutler
- Molecular Targets Development Program, NCI-Frederick, Frederick, Maryland 21702
| | - Tawnya C. McKee
- Molecular Targets Development Program, NCI-Frederick, Frederick, Maryland 21702
| | - James B. McMahon
- Molecular Targets Development Program, NCI-Frederick, Frederick, Maryland 21702
| |
Collapse
|
10
|
Feng WS, Cao XW, Kuang HX, Zheng XK. Flavanone O-glycosides from the rhizomes of Dryopteris sublaeta. Yao Xue Xue Bao 2007; 42:867-871. [PMID: 17944237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The aim of this study was to look for the chemical constituents from the rhizomes of Dryopteris sublaeta. The fresh plant was extracted twice with boiling water, the extract was concentrated to small volume under reduced pressure at 50 degrees C. The concentrated material was partitioned with ether, ethyl acetate and n-butanol. The fraction of ethyl acetate was repeatedly chromatographied over silica gel and Sephadex LH-20 columns. Structures of pure compounds were established on the basis of their physiochemical and spectral data. Nine compounds were obtained and identified as sublaetentin A (1), sublaetentin B (2), sublaetentin C (3), sublaetentin D (4), matteuorienate A (5), matteuorienate C (6), arbutin (7), 3-methoxy-4-hydroxyphenyl-1-O-beta-D-glucopyranoside (8) and 3,4-dimethoxyphenyl-1-O-beta-D-glucopyranoside (9). Compounds 1 - 4 are new compounds, the others were isolated from this plant for the first time.
Collapse
Affiliation(s)
- Wei-Sheng Feng
- Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China.
| | | | | | | |
Collapse
|
11
|
Abstract
A new phenolic glycoside, 6'-[(E)-2''-hydroxymethyl, 2''-butenoyl] arbutin (1), and two known phenolic glycosides, 6'-[(E)-4''-hydroxycinnamoyl] arbutin (2) and 6'-[(E)-3'',4''-dihydroxycinnamoyl] arbutin (3), were isolated from the leaves of Heliciopsis lobata (Merr.) Sleum. Their structures were elucidated by various spectroscopic methods including 2D NMR spectroscopy.
Collapse
Affiliation(s)
- Q-Q He
- China Pharmaceutical University, Department of Natural Medicinal Chemistry, Nanjing, 210009, China
| | | | | | | |
Collapse
|
12
|
Abstract
Four phenolic glycosides (1-4), including two new ones (3 and 4), have been isolated from the stems of Casearia multinervosa and identified as arbutin (1), 4-O-E-caffeoylarbutin (2), 4-O-E-coumaroylarbutin (3) and 4-O-E-feruloylarbutin (4), respectively. In addition, the two known phenolic glycosides (1 and 2) were also isolated from the leaves. Structures were elucidated on the basis of spectroscopic evidence. Compounds 1-4 were tested for cytotoxicity against the P388 mouse lympholytic cell line by an ATP Lite-M assay method and showed mild to moderate activity.
Collapse
Affiliation(s)
- M Ashik
- Centre for Phytochemistry and Pharmacology, Southern Cross University, P.O. Box 157, Lismore, NSW 2480, Australia
| | | | | | | |
Collapse
|
13
|
Li CH, Yang XD, Zhao JF, Li L. [The chemical constituents of Breynia rostrata]. Yao Xue Xue Bao 2006; 41:125-7. [PMID: 16671541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
AIM To study the chemical constituents of Breynia rostrata Merr. METHODS Chromatography was used to isolate and purify the chemical constituents, their structures were identified by spectral analysis. RESULTS Four glycosides were identified as 6-O-methylpropanoyl-alpha-D-glucopyranoside (1), 4"-phenolic-6-O-methylpropanoyl-beta-D-glucopyranoside (2), 1-O-galloyl-beta-D-glucopyranoside (3), arbutin (4). CONCLUSION Compounds 1 and 2 are new compounds; 3 and 4 were isolated from Breynia rostrata Merr. for the first time.
Collapse
Affiliation(s)
- Cui-hong Li
- Center for Advanced Studies of Medicinal and Organic Chemistry, School of Pharmacy, Yunnan University, Kunming 650091, China
| | | | | | | |
Collapse
|
14
|
Zheng XK, Bi YF, Feng WS, Shi SP, Wang JF, Niu JZ. [Study on the chemical constituents of Selaginella tamariscina (Beauv.) Spring]. Yao Xue Xue Bao 2004; 39:266-8. [PMID: 15303655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
AIM To study the chemical constituents of Selaginella tamariscina (Beauv.) Spring. METHODS Various chromatographic techniques were used to separate and purify the chemical constituents. Their physico-chemical properties and spectral data were used to elucidate the structures. RESULTS Four compounds were isolated from the n-BuOH fraction of the water-extracts. Their structures were identified as 1-hydroxy-2-[2-hydroxy-3-methoxy-5-(1-hydroxyethyl)-phenyl]-3-(4-hydroxy-3,5-dimethoxy)-propane-1-O-beta-D-glucopyranoside (tamariscinoside B, I), adenosine (II), guanosine (III), arbutin (IV). CONCLUSION Tamariscinoside B (I) is a new compound, while the others were isolated from Selaginella for the first time.
Collapse
Affiliation(s)
- Xiao-ke Zheng
- Henan College of Traditional Chinese Medicine, Zhengzhou 450008, China
| | | | | | | | | | | |
Collapse
|
15
|
Lu X, Wang J. [Advances in the study of Bergenia plants]. Zhong Yao Cai 2003; 26:58-60. [PMID: 12956180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Affiliation(s)
- Xiumei Lu
- School of Pharmaceutical Science, Xian Jiaotong University, Xian 710061
| | | |
Collapse
|
16
|
Abstract
The infusion of the aerial parts of Turnera diffusa was phytochemically examined. Chromatographic procedures led to the isolation of a new flavone glycoside, five known flavonoids and p-arbutin. Structures were determined by 1D- and 2D NMR experiments, as well as ES-MS and UV spectra.
Collapse
Affiliation(s)
- Sonia Piacente
- Dipartimento di Scienze Farmaceutiche, Università degli Studi di Salerno, Via Ponte don Melillo, 84084, Fisciano, SA, Italy
| | | | | | | | | | | | | |
Collapse
|
17
|
Abstract
Plant-derived glucosides have attracted much attention due to their widespread applications. This class of products is difficult to isolate or to synthesize in pure form because of the resulting low yields. Thus, simple approaches for the generation of such glucosides would be highly beneficial. We purified and characterized a novel glucosyltransferase from plant cell suspension cultures of Rauvolfia serpentina, which showed rather low substrate specificity. We obtained its cDNA and expressed the active recombinant protein in bacteria (Escherichia coli) with excellent plant-specific glucosylation efficiencies. Compared with the plant system, the bacteria delivered the new enzyme, which was in the form of a soluble or matrix-bound enzyme, approximately 1800 times more efficiently for the synthesis of a wide range of glucosides. More importantly, the engineered E. coli strain allowed for in vivo glucosylation and release of the product into the culture medium, as shown by the formation of arbutin, which is a potent inhibitor of human melanin biosynthesis with commercial value.
Collapse
Affiliation(s)
- J Arend
- Department of Pharmaceutical Biology, Institute of Pharmacy, Johannes Gutenberg-University Mainz, Staudinger Weg 5, 55099 Mainz, Germany
| | | | | | | |
Collapse
|
18
|
Parejo I, Viladomat F, Bastida J, Codina C. A single extraction step in the quantitative analysis of arbutin in bearberry (Arctostaphylos uva-ursi) leaves by high-performance liquid chromatography. Phytochem Anal 2001; 12:336-339. [PMID: 11705262 DOI: 10.1002/pca.602] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A fast and simple extraction procedure coupled with a simple HPLC method has been developed in order to determine the arbutin content of leaves of Arctostaphylos uva-ursi plants grown at four different geographical sites and collected during two different seasons. Using the optimised analytical system, the arbutin content of bearberry leaves was found to vary from 6.30 to 9.16% expressed on a dry weight basis. Autumn is shown to be a better period than spring for the collection of plant material in order to obtain the highest yield of arbutin.
Collapse
Affiliation(s)
- I Parejo
- Department of Natural Products, Plant Biology and Edaphology, Faculty of Pharmacy, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain
| | | | | | | |
Collapse
|
19
|
Wang J, Fu Q, Li X, Liu W. [Experimental study and textual research on whether the genus of Pyrola contains arbutin]. Zhongguo Zhong Yao Za Zhi 1995; 20:327-8, 382. [PMID: 7646801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Thin layer chromatography and high performance liquid chromatography show that Pyrola calliantha does not contain arbutin. Literature survey shows that to date no one has ever isolated arbutin from this herb.
Collapse
Affiliation(s)
- J Wang
- Faculty of pharmacy, Xi'an Medical University
| | | | | | | |
Collapse
|
20
|
Shi Q, Zuo C. [Chemical components of the leaves of Pistacia Chinensis Bge]. Zhongguo Zhong Yao Za Zhi 1992; 17:422-3, 446. [PMID: 1445648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Six compounds have been isolated from the leaves of Pistacia chinensis, a species of Anacardiaceae family. Their structures were identified on the basis of UV, IR, NMR, and MS as gallic acid, m-digallic acid, quercetin, 6-0-galloyl arbutin-quercitrin and quercetin-3-0(6''-galloyl)-beta-D-glucosides.
Collapse
Affiliation(s)
- Q Shi
- Institute of Materia Medica, Shandong Academy of Medical Sciences, Jinan
| | | |
Collapse
|