abstract：:In a two-microelectrode voltage clamp assay with Xenopus laevis oocytes, a petroleum ether extract (100 μg/mL) of the resin of Boswellia thurifera (Burseraceae) potentiated GABA-induced chloride currents (IGABA) through receptors of the subtype α₁β₂γ₂s by 319.8% ± 79.8%. With the aid of HPLC-based activity profiling, ...

journal_title：Fitoterapia

authors： Rueda DC,Raith M,De Mieri M,Schöffmann A,Hering S,Hamburger M

更新日期：2014-12-01 00:00:00

abstract：:A pair of diastereoisomers, the N-glycosylated derivatives of dioxindole-3-hydroxy-3-acetic acid 1-2, and their conjugates with flavonoids 3-8, was isolated from the seeds of Ziziphus jujuba var. spinosa. Their structures were elucidated by NMR spectroscopic analyses, and the absolute configurations were determined by...

journal_title：Fitoterapia

authors： Li M,Wang Y,Tsoi B,Jin XJ,He RR,Yao XJ,Dai Y,Kurihara H,Yao XS

更新日期：2014-12-01 00:00:00

abstract：:Three new glucosides, namely, (-)-7R8S-7',8'-dihydroxy-dihydrodehydroconiferyl alcohol-9-O-β-D-glucopyranoside (1), (+)-7S8R-7',8'-dihydroxy-dihydrodehydroconiferyl alcohol-9-O-β-D-glucopyranoside (2) and 4-hydroxy-2-methoxyphenyl 1-O-[6-(hydrogen 3-hydroxy-3-methylpentanedioate)]-β-D-glucopyranoside (3), along with 6...

journal_title：Fitoterapia

authors： Hu J,Zhao J,Khan SI,Liu Q,Liu Y,Ali Z,Li XC,Zhang SH,Cai X,Huang HY,Wang W,Khan IA

更新日期：2014-12-01 00:00:00

abstract：:Four new eburnamine-aspidospermine type bisindole alkaloids, namely, mekongenines C-F (1-4), along with 27 known indole alkaloids were isolated from the twigs and leaves of Bousigonia mekongensis. Their structures with the absolute configurations were elucidated by spectroscopic methods and ECD analyses. All new compo...

journal_title：Fitoterapia

authors： Fu YH,Li SL,Li SF,He HP,Di YT,Zhang Y,Hao XJ

更新日期：2014-10-01 00:00:00

abstract：:The alpha7 nicotinic acetylcholine receptor (nAChR) is a potential target in neuroinflammation. Screening a plant extract library identified Solidago nemoralis as containing methyl-quercetin derivatives that are relatively selective ligands for the alpha7 nAChR. Flavonoids are not known for this activity, so we screen...

journal_title：Fitoterapia

authors： Lutz JA,Kulshrestha M,Rogers DT,Littleton JM

更新日期：2014-10-01 00:00:00

abstract：:The purpose of this study is to elucidate the bioactive components responsible for the the α-glucosidase inhibitory activity detected in the EtOAc extract of the mushroom Hydnellum concrescens. Two new p-terphenyl derivatives, concrescenins A (1) and B (2), in along with six known compounds thelephantins L (3), I (4),...

journal_title：Fitoterapia

authors： Wang SM,Han JJ,Ma K,Jin T,Bao L,Pei YF,Liu HW

更新日期：2014-10-01 00:00:00

abstract：:Two new xanthones: mangostanaxanthones I (3) and II (5) were isolated from the pericarp of Garcinia mangostana, along with four known xanthones: 9-hydroxycalabaxanthone (1), parvifolixanthone C (2), α-mangostin (4), and rubraxanthone (6). Their structures were elucidated on the basis of IR, UV, 1D, 2D NMR, and MS spec...

journal_title：Fitoterapia

authors： Mohamed GA,Ibrahim SR,Shaaban MI,Ross SA

更新日期：2014-10-01 00:00:00

abstract：:Five new lanostane triterpenoids, ganoderic acid XL1 (1), ganoderic acid XL2 (2), 20-hydroxy-ganoderic acid AM1 (3), ganoderenic acid AM1 (4) and ganoderesin C (5), together with five known triterpenoids (6-10) were isolated from the fruiting bodies of Ganoderma theaecolum. Chemical structures were elucidated on the b...

journal_title：Fitoterapia

authors： Liu LY,Chen H,Liu C,Wang HQ,Kang J,Li Y,Chen RY

更新日期：2014-10-01 00:00:00

abstract：:One new Euphane-type triterpenoid 3β-hydroxytirucalla-5, 24-dien-21-oic acid (1), and ten known compounds (2-11) were isolated from Melia azedarach L. through bioassay-guided chemical analysis. The structures of the isolated compounds were established by means of 1D and 2D NMR spectroscopic ((1)H, (13)C, DEPT, COSY, H...

journal_title：Fitoterapia

authors： Khan MF,Rawat AK,Pawar B,Gautam S,Srivastava AK,Negi DS

更新日期：2014-10-01 00:00:00

abstract：:Four new lignanamides, melongenamides A-D (1-4), together with six known ones (5-10), were isolated from the roots of Solanum melongena L. Their structures were elucidated on the basis of 1D and 2D NMR experiments and by comparison of their spectroscopic and physical data with the literature values. Compounds 2-8 exhi...

journal_title：Fitoterapia

authors： Sun J,Gu YF,Su XQ,Li MM,Huo HX,Zhang J,Zeng KW,Zhang Q,Zhao YF,Li J,Tu PF

更新日期：2014-10-01 00:00:00

abstract：:Smyrnium olusatrum (Apiaceae), well known as wild celery, is a biennal celery-scented plant used for many centuries as a vegetable, then abandoned after the introduction of celery. In the present work, the essential oil obtained from inflorescences and the amounts of its main constituents isofuranodiene, curzerene and...

journal_title：Fitoterapia

authors： Quassinti L,Maggi F,Barboni L,Ricciutelli M,Cortese M,Papa F,Garulli C,Kalogris C,Vittori S,Bramucci M

更新日期：2014-09-01 00:00:00

abstract：:Isorhynchophylline is one of the major alkaloids from the Uncaria hook possessing the effects of lowered blood pressure, vasodilatation and protection against ischemia-induced neuronal damage. However, the metabolic pathway of isorhynchophylline has not been fully reported yet. In this paper, the metabolism of isorhyn...

journal_title：Fitoterapia

authors： Chen F,Qi W,Sun J,Simpkins JW,Yuan D

更新日期：2014-09-01 00:00:00

abstract：:Silymarin, a standardised extract of Silybum marianum (milk thistle), comprises mainly of silybin, with dehydrosilybin (DHSB), quercetin, taxifolin, silychristin and a number of other compounds which are known to possess a range of salutary effects. Indeed, there is evidence for their role in reducing tumour growth, p...

journal_title：Fitoterapia

authors： Zholobenko A,Modriansky M

更新日期：2014-09-01 00:00:00

abstract：:Two new steroidal esters with an unusual framework, Sinkiangenorin A and B, a new organic acid glycoside, Sinkiangenorin C, and four known lignin compounds were isolated from the seeds of Ferula sinkiangensis. The structures of these compounds were established by spectroscopic analysis and single-crystal X-ray diffrac...

journal_title：Fitoterapia

authors： Li G,Li X,Cao L,Shen L,Zhu J,Zhang J,Wang J,Zhang L,Si J

更新日期：2014-09-01 00:00:00

abstract：:A chemical investigation of the 80% EtOH extract of the aerial plant of Alstonia rupestris afforded four new monoterpenoid indole alkaloids, 6,7-epoxy-8-oxo-vincadifformine (1), 11-acetyl-6,7-epoxy-8-oxo-vincadifformine (2), 11-hydroxy-14-chloro-15-hydroxy-vincadifformine (3), and perakine N1,N4-dioxide (4), together ...

journal_title：Fitoterapia

authors： Zhang L,Hua Z,Song Y,Feng C

更新日期：2014-09-01 00:00:00

abstract：:Two new dimeric diarylheptanoids, named Alpinin C (1) and D (2), a new natural product of diarylheptanoid (3) along with three known diarylheptanoids (4-6) were isolated from the rhizomes of Alpinia officinarum Hance. Their structures were elucidated based on extensive spectroscopic analyses (1D and 2D NMR, HRTOFMS, I...

journal_title：Fitoterapia

authors： Liu D,Liu YW,Guan FQ,Liang JY

更新日期：2014-07-01 00:00:00

abstract：:Infusions of Picrolemma sprucei roots, stems and leaves are used in traditional medicine throughout the Amazon region from the Guianas to Brazil and Peru in the treatment of gastritis, intestinal helminths and malaria. As there are no studies describing its mode of action in providing a gastroprotective effect, we det...

journal_title：Fitoterapia

authors： Vieira SM,Silva RL,Lemos HP,Amorim RC,Silva EC,Reinach PS,Cunha FQ,Pohlit AM,Cunha TM

更新日期：2014-06-01 00:00:00

abstract：:Five new sesquiterpenes (1-5) along with ten known ones were isolated from the heartwood of Dalbergia odorifrea T. Chen. Their structures were determined by spectroscopic techniques including MS, UV, IR, 1D and 2D NMR. Bioassay results showed that compounds 1 and 9 had inhibitory effect on Candida albicans, and compou...

journal_title：Fitoterapia

authors： Wang H,Dong WH,Zuo WJ,Liu S,Zhong HM,Mei WL,Dai HF

更新日期：2014-06-01 00:00:00

abstract：:One new resveratrol analogue, 1-(3',4',5'-trimethoxyphenyl)-2-methoxy-2-(4″-methoxyphenyl)-ethane-1-ol (1), and two new prenylisoflavones, 4'-hydroxy-5,7-dimethoxy-6-(3-methyl-2-butenyl)-isoflavone (2), and derrubon 5-methyl ether (3), together with 17 known compounds including one new natural product, 5,7-dihydroxy-3...

journal_title：Fitoterapia

authors： Zhang HX,Lunga PK,Li ZJ,Dai Q,Du ZZ

更新日期：2014-06-01 00:00:00

abstract：:Hispolon was the main antitumor active ingredient in Phellinus sensu lato species. In order to confirm the dual regulating estrogenic ingredient and obtain more effective natural estrogen replacement drugs, hispolon was separated from Phellinus lonicerinus (Bond.) Bond. et sing. Hispolon exhibited significant anti-pro...

journal_title：Fitoterapia

authors： Wang J,Hu F,Luo Y,Luo H,Huang N,Cheng F,Deng Z,Deng W,Zou K

更新日期：2014-06-01 00:00:00

abstract：:Malaria is one of the most devastating infectious diseases in the developing world. Until now, only one candidate malaria vaccine RTS,S/AS01 has shown modest protection in phase 3 trial in African infants. Hence the treatment of malaria still depends on the current chemotherapeutic drugs. Considering the resistance of...

journal_title：Fitoterapia

authors： Jin H,Xu Z,Cui K,Zhang T,Lu W,Huang J

更新日期：2014-04-01 00:00:00

abstract：:The estrogenicity of different batches of red clover (Trifolium pratense L., Fabaceae; RCL) extracts and its relationship with the isoflavone content were assessed by measuring MCF-7 cell proliferation by flow cytometry and propidium iodide staining. RCL extracts were compared to estradiol (E2) and to the main RCL iso...

journal_title：Fitoterapia

authors： Spagnuolo P,Rasini E,Luini A,Legnaro M,Luzzani M,Casareto E,Carreri M,Paracchini S,Marino F,Cosentino M

更新日期：2014-04-01 00:00:00

abstract：:Six new shionane-type triterpenes, astershionones A-F (1-6), were obtained from the roots and rhizomes of Aster tataricus. Their structures were elucidated on the basis of spectroscopic data, mainly NMR and MS data. The absolute configuration of 1 was determined by single crystal X-ray diffraction analysis and CD anal...

journal_title：Fitoterapia

authors： Zhou WB,Zeng GZ,Xu HM,He WJ,Zhang YM,Tan NH

更新日期：2014-03-01 00:00:00

abstract：:The aim of the present research was to establish a comprehensive strategy to identify the metabolites of isoimperatorin after biotransformation with rat liver microsomes in vitro, and further describe metabolic kinetic characteristics of isoimperatorin and its main metabolites. Utilizing liquid chromatography with tim...

journal_title：Fitoterapia

authors： Chen TL,Zhang YB,Xu W,Kang TG,Yang XW

更新日期：2014-03-01 00:00:00

abstract：:Five new phthalides (1-4, 6), two new natural products (5, 7) and five known phthalides (8-12) were isolated from the aerial parts of Ligusticum sinense Oliv cv. Chaxiong. Their structures were elucidated by HR-ESI-MS, UV, IR, 1D and 2D NMR (HSQC, HMBC, (1)H-(1)H COSY, NOESY) methods. The absolute configurations were ...

journal_title：Fitoterapia

authors： Wei Q,Yang J,Ren J,Wang A,Ji T,Su Y

更新日期：2014-03-01 00:00:00

abstract：:Three novel xanthonolignoid C-glycosides, glomexanthones A-C, with a trans-dihydrobenzofuran on B ring and a 2-hydroxymethyl-5-hydroxyl-2-pentenoic acid moiety in the sugar chain were isolated from an ethanol extract of Polygala glomerata. Their structures and absolute configurations were characterized by extensive NM...

journal_title：Fitoterapia

authors： Li CJ,Yang JZ,Yu SS,Zhao CY,Peng Y,Wang XL,Zhang DM

更新日期：2014-03-01 00:00:00

abstract：:Influenza poses a particular risk of severe outcomes in the elderly, the very young and those with underlying diseases. Tea polyphenols are the natural phenolic compounds in teas, and principally consist of catechins, proanthocyanidins, flavonols, and theaflavins, which antiviral activities have been reported recently...

journal_title：Fitoterapia

authors： Yang ZF,Bai LP,Huang WB,Li XZ,Zhao SS,Zhong NS,Jiang ZH

更新日期：2014-03-01 00:00:00

abstract：:The root of Coptis chinensis Franch. (COCH) is regularly used for medicinal purposes, and has been prescribed alone or in combination with other traditional herbs for the treatment of diabetes. To investigate the effects of COCH on glucose utilization by skeletal muscles, we prepared an ethanol extract of COCH root (C...

journal_title：Fitoterapia

authors： Yang TC,Chao HF,Shi LS,Chang TC,Lin HC,Chang WL

更新日期：2014-03-01 00:00:00

abstract：:Two spiro paclitaxel-mimics consisting only of an oxetane D-ring and a C-13 side chain were designed and synthesized on the basis of analysis of structure-activity relationships (SAR) of paclitaxel. In vitro microtubule-stabilizing and antiproliferative assays indicated a moderate weaker activity of the mimics than pa...

journal_title：Fitoterapia

authors： Chen XX,Gao F,Wang Q,Huang X,Wang D

更新日期：2014-01-01 00:00:00

abstract：:Ten new geranylated 2-arylbenzofuran derivatives, including two monoterpenoid 2-arylbenzofurans (1 and 2), two geranylated 2-arylbenzofuran enantiomers (3a and 3b), and six geranylated 2-arylbenzofurans (4-9), along with four known 2-arylbenzofurans (10-13) were isolated from the root bark of Morus alba var. tatarica....

journal_title：Fitoterapia

authors： Zhang YL,Luo JG,Wan CX,Zhou ZB,Kong LY

更新日期：2014-01-01 00:00:00

abstract：:Three new furoquinoline alkaloids, leptanoines A-C (1-3) along with three known compounds (4-6) were isolated from the leaves of Evodia lepta. Their structures were identified by interpretation of their spectroscopic data as well as comparison with those reported in the literature. In addition, all isolated compounds ...

journal_title：Fitoterapia

authors： Sichaem J,Jirasirichote A,Sapasuntikul K,Khumkratok S,Sawasdee P,Do TM,Tip-pyang S

更新日期：2014-01-01 00:00:00

abstract：:Four new terpenoids, nemoralisins D-G (1-4), were isolated from the leaves and stems of Aphanamixis grandifolia, along with two known diterpenoids, nemoralisin C and nemoralisin. Among them, compound 1 is the first example of norsesquiterpenoid with δ-lactone moiety, and nemoralisins E-G (2-4), are a class of acyclic ...

journal_title：Fitoterapia

authors： Zhang R,He HP,Di YT,Li SL,Zuo GY,Zhang Y,Hao XJ

更新日期：2014-01-01 00:00:00

abstract：:Seven compounds were isolated from the roots of Eurycoma longifolia, and characterized by comprehensive analysis of 1D and 2D NMR experiments along with single crystal X-ray diffraction. Among them, four new quassinoids were identified and three of them were diastereomers for each other. Compounds 1-7 were evaluated f...

journal_title：Fitoterapia

authors： Meng D,Li X,Han L,Zhang L,An W,Li X

更新日期：2014-01-01 00:00:00

abstract：:7-O-methylvariecolortide A (1), variecolortide B (2), and variecolortide C (3), the rare variecolortides existing in racemic manner, were isolated from an endolichenic fungal strain Eurotium sp. (No. 17-11-8-1). With the chiral HPLC technology, (-)-(S)-7-O-methylvariecolortide A (1a), (+)-(R)-7-O-methylvariecolortide ...

journal_title：Fitoterapia

authors： Chen GD,Bao YR,Huang YF,Hu D,Li XX,Guo LD,Li J,Yao XS,Gao H

更新日期：2014-01-01 00:00:00

abstract：:Three new cycloartane triterpenoids (1-3) and two known compounds (4, 5) were isolated from the whole plant of Beesia calthaefolia. Their structures were elucidated by 1D and 2D NMR, HRESIMS and optical rotation spectral data. All isolates were investigated for their inhibitory effects on the classical pathway of the ...

journal_title：Fitoterapia

authors： Mu LH,Li HJ,Guo DH,Zhao JY,Liu P

更新日期：2014-01-01 00:00:00

abstract：:Four new C18-diterpenoid alkaloids, weisaconitines A-D (1-4), were isolated from Aconitum weixiense. Based on extensive UV, IR, MS, 1D and 2D NMR analyses, their structures were elucidated as 8-O-ethyldolaconine (1), 4-demethylgenicunine B (2), 14-oxoaconosine (3), and 8-O-ethylaconosine (4). The analgesic activity of...

journal_title：Fitoterapia

authors： Zhao DK,Ai HL,Zi SH,Zhang LM,Yang SC,Guo HC,Shen Y,Chen YP,Chen JJ

更新日期：2013-12-01 00:00:00

abstract：:Glucocorticoids (GCs) are usually used to treat inflammatory diseases. However, they cause severe and irreversible side effects, which limit the use of these compounds. Ginsenoside Rg1 had been demonstrated to possess anti-inflammatory and anti-cancer effects. The present study was designed to investigate whether Rg1 ...

journal_title：Fitoterapia

authors： Song Y,Zhao F,Zhang L,Du Y,Wang T,Fu F

更新日期：2013-12-01 00:00:00

abstract：:Two new 7,6'-coupled naphthylisoquinolines, namely ancistrotectorines A (1) and B (2), two new 5,3'-coupled naphthylisoquinolines, namely ancistrotectorines C (3) and D (4), and one new 7,8-coupled naphthylisoquinoline, namely ancistrotectorine E (5), together with 9 known naphthylisoquinoline alkaloids, hamatine (6),...

journal_title：Fitoterapia

authors： Jiang C,Li ZL,Gong P,Kang SL,Liu MS,Pei YH,Jing YK,Hua HM

更新日期：2013-12-01 00:00:00

abstract：:Eight new dihydrobenzofuran neolignans, pinnatifidanin C I-VIII (1-8), together with two known analogs (9-10) were isolated from the seeds of Crataegus pinnatifida. Their structures were elucidated by spectroscopic analyses, especially 1D, 2D NMR and CD spectra. The cytotoxic activities of all isolates against human c...

journal_title：Fitoterapia

authors： Huang XX,Zhou CC,Li LZ,Peng Y,Lou LL,Liu S,Li DM,Ikejima T,Song SJ

更新日期：2013-12-01 00:00:00

abstract：:Aloe barbadensis Mill has been used as food and medicine for a long time. In order to investigate the chemical constituents of A. barbadensis and their inhibitory activities towards phosphodiesterase-4D (PDE4D), 70% methanol extract of the dried A. barbadensis powder was employed. Phytochemical investigation has led t...

journal_title：Fitoterapia

authors： Zhong J,Huang Y,Ding W,Wu X,Wan J,Luo H

更新日期：2013-12-01 00:00:00