解剖学和形态学
麻醉学
听力与言语-语言病理学
行为科学
心脏和心血管系统
细胞和组织工程学
临床神经病学
危重症监护医学
牙科,口腔外科和医学
皮肤病学
急诊医学
内分泌学和新陈代谢
肠胃学和肝脏学
老人病学和老年医学
卫生保健科学和服务
血液学
免疫学
传染病
综合和补充性医学
医学伦理学
医学信息学
医学实验室技术
医学,全科和内科
医学,法律
医学,研究和试验
神经系统科学
护理
营养学和饮食学
产科医学和妇科医学
肿瘤学
眼科学
整形外科学
耳鼻喉科学
病理学
儿科学
周围血管疾病
药理学和药剂学
生理学
基本医疗保健
精神病学
公共、环境和职业卫生
放射学,核医学和医学成像
康复学
生殖生物学
呼吸系统
风湿病学
运动科学
外科学
毒理学
热带医学
泌尿学和肾脏学
病毒学
老年医学
健康政策和服务
心理学,临床
abstract::Two new C-15 enolic acyl phragmalin-type limonoid orthoesters, chukvelutilide G (1) and chukrasine F (2), were isolated from the stem barks of Chukrasia tabularis var. velutina. Their structures were elucidated by their extensive high resolution-electrospray ionization mass spectrometry (HR-ESI-MS), one- and two-dimen...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.682995
更新日期:2013-04-01 00:00:00
abstract::The aim of this study was to investigate the influence of both facility location and typology of fish farm on some ecotoxicological, qualitative and reproductive variables in European sea bass Dicentrarchus labrax L. Several variables were investigated: gonado-somatic index (GSI), liver-somatic index (LSI); 7-ethoxyre...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.678353
更新日期:2013-04-01 00:00:00
abstract::This study is designed to examine the chemical composition and antioxidant activity of the essential oil of Vitex megapotamica. Gas chromatography-mass spectrometry analysis resulted in the detection of 27 components, representing 92.36% of the total oil composition. The main components in the oil were butylated hydro...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.696258
更新日期:2013-04-01 00:00:00
abstract::Acetylcholinesterase (AChE) inhibitors have been used for the symptomatic treatment of Alzheimer's disease. Eleven whole plants from Panama belonging to the Lycopodiaceae family have been screened for their anticholinesterase inhibitory and antioxidant activities by a thin-layer chromatography (TLC) bioautography meth...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.701217
更新日期:2013-03-01 00:00:00
abstract::An HPLC/DAD/ESI-MSn method was established to characterise flavonoids in the seeds of Sophora alopecuroides L. All the flavonoids exhibited abundant [M-H]- ions, which triggered data-dependent multistage mass spectrometry fragmentations. Characteristic UV spectra were used to confirm flavonoid subtypes. In total, 22 f...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.688052
更新日期:2013-03-01 00:00:00
abstract::Three new methylated flavonol glucosides: 3-methoxy-7-O-β-(6″-galloylgluco-pyranoside) quercetin (1), 3,4'-dimethoxy-7-O-β-(6″-galloyl-glucopyranoside) quercetin (2) and 3-methoxy-7-O-β-(6″-galloylgluco-pyranoside) kaempferol (3), in addition to six known flavonols, were isolated from the ethyl acetate extract of Fuma...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.778848
更新日期:2013-01-01 00:00:00
abstract::A new and efficient synthesis of a naturally occurring amide alkaloid, N-isobutyl-4,5-epoxy-2(E)-decenamide isolated from the roots of Piper nigrum has been described involving a total of nine steps. Octanal and 2-bromoacetic acid have been used as the starting materials. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.678349
更新日期:2013-01-01 00:00:00
abstract::In the context of our previous communication on phytochemical studies of the ethanolic extract of flowers of Alstonia scholaris of Pakistan origin, these have resulted in the isolation of two new triterpenoids. One is of the oleanane type, alstoprenyol, 3-β-hydroxy-28-β-acetoxy-5-olea triterpene (1), the other is of u...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.730046
更新日期:2013-01-01 00:00:00
abstract::A new highly oxygenated pseudoguaianolide, rudbeckolide (1), was isolated from Rudbeckia hirta L. flowers. The structure of this terpenoid lactone was established on the basis of extensive 1D and 2D NMR spectroscopic analyses. The compound exhibited strong 5-lipoxygenase inhibitory activity (84.9% inhibition at 10 μg/...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.825916
更新日期:2013-01-01 00:00:00
abstract::A short total synthesis of natural isocarbostyril ruprechstyril (3-n-pentyl-6-methoxy-8-hydroxy-1(2H)-isoquinolinone) isolated from Ruprechtia tangarana is reported. 6,8-Dimethoxy-3-pentylisocoumarin obtained by condensation of 3,5-dimethoxyhomophthalic anhydride with hexanoyl chloride was smoothly converted to O-meth...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.715292
更新日期:2013-01-01 00:00:00
abstract::A new xanthone, calothorexanthone, together with five known compounds, garbogiol, 1,4,8-trihydroxyxanthone, δ-tocotrienol, 1,7-dihydroxyxanthone and globuxanthone, was isolated from a petroleum ether extract of the bark of Calophyllum thorelii. Their structures were established on the basis of spectroscopic methods, m...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.682992
更新日期:2013-01-01 00:00:00
abstract::Two new flavonol glycosides, isorhamnetin 3-O-β-glucopyranoside-4'-O-β-xylopyranoside (1) and kaempferol 3-O-β-glucopyranoside -4'-O-β-xylopyranoside (2), were isolated from the defatted aqueous methanol extract of the whole plant Diplotaxis harra along with 12 known flavonols (3-14). They were characterised by chemic...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.825914
更新日期:2013-01-01 00:00:00
abstract::This study is designed to examine the chemical composition of the essential oil obtained from Buddleja thyrsoides Lam leaves from south Brazil. Gas chromatography/mass spectrometry analysis resulted in the detection of 12 components, representing 91.4% of the total oil composition. Germacrene D (27.16%), 1,10-di-epi-C...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.740035
更新日期:2013-01-01 00:00:00
abstract::Leishmaniasis is caused by parasites of the genus Leishmania. Recent reports about leishmaniasis show a few number of drugs available, indicating the necessity of new drugs. In this study, the ethanol extract and fractions of Pityrogramma calomelanos (L.) link. (Pteridaceae) were assayed to verify the cytotoxicity and...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.686911
更新日期:2013-01-01 00:00:00
abstract::New sesquiterpene glycoside, cyclodipeptide and piperidine derivative were isolated from Streptomyces sp. YIM 63342. On the basis of spectral data, their structures were determined as 3R, 5R, 6S, 7E, 9R-megastigman-7-en-3,5,6,9-tetrol-9-O-β-D-apiofuranosyl-(1→ 2)-β-D-glucopyranoside (1), cyclo (L-Pro-L-OMet) (2) and (...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.718776
更新日期:2013-01-01 00:00:00
abstract::Three new phenanthrenes, stemophenanthrenes A-C (1-3), along with one new stilbenoid, isopinosylvin A (4) and a known compound methyl ferulate (5), were isolated and identified from the roots of Stemona tuberosa Lour. plants, collected in Attapu province (Laos). Their structures were elucidated by spectroscopic analys...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.832677
更新日期:2013-01-01 00:00:00
abstract::In this study, a methanolic extract of Betula pendula leaves (BLE) was investigated for its gastroprotective effects against 90% ethanol-induced ulcer in rats. Oral pretreatment of rats with BLE (100, 200 and 400 mg kg(- 1)) significantly reduced the incidence of gastric lesions induced by ethanol administration as co...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.740036
更新日期:2013-01-01 00:00:00
abstract::Comparison of an authentic sample of altertenuol with altenuisol obtained by total synthesis and analysis of nuclear magnetic resonance spectra unambiguously revealed that altertenuol and altenuisol are identical compounds. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.819509
更新日期:2013-01-01 00:00:00
abstract::Chemical investigation of an ethyl acetate soluble fraction of Sinularia polydactyla (Ehrenberg) led to the isolation of three known terpenoides, two of them sterols, 24-methylcholestane-3β,5α,6β,25-tetrol 25-monoacetate (1), 24-methylcholestane-5-en-3β,25-diol (2), in addition to a cembranoid diterpene, durumolide C ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.805333
更新日期:2013-01-01 00:00:00
abstract::The aim of the study was comparing the chemical composition of the essential oils from five varieties of lavender (Lavandula angustifolia L.), and its biological activity against two pathogenic bacteria, Staphylococcus aureus and Pseudomonas aeruginosa. In the comparison we included the following varieties: 'Munstead'...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.724408
更新日期:2013-01-01 00:00:00
abstract::The content of total polyphenols, chlorogenic, caffeic (CaA) and ferulic acids, and rutin, was investigated in plant organs of three introgression lines (IL7-3, IL10-1 and IL12-4) of Solanum pennellii in Solanum lycopersicum cv M82 and compared with that of cropped parental. Such study aims to evidence factors associa...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.704371
更新日期:2013-01-01 00:00:00
abstract::Salvia x jamensis J. Compton is a hybrid between Salvia greggii A. Gray and Salvia microphylla Kunt. In this study, we describe three hair types identified by Scanning Electron Microscopy. In the essential oil of the aerial parts of S. jamensis 56 different compounds were identified. The two main constituents were β-c...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.730044
更新日期:2013-01-01 00:00:00
abstract::In Lithuania, two species of the genus Fragaria L. (Rosaceae), F. vesca L. and F. viridis Weston, occur naturally in the wild and two others, F. moschata Weston and F. × ananassa Duchesne ex Rozier are found escaped from cultivation. The main objective of this study was to establish the variation pattern in the conten...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.660634
更新日期:2013-01-01 00:00:00
abstract::A new hexadienamide derivative named sarmentosamide (1) was identified from the culture of Streptomyces sp. SBI108 isolated from Thai soil under an herb. The structure was elucidated on the basis of spectroscopic data, and the absolute configuration was determined by chemical degradation. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.671313
更新日期:2013-01-01 00:00:00
abstract::Three new compounds; epi-mukulin, (Z)-Δ(1,2) dehydroguggulsterone and Δ(6,7)dehydro-20-hydroxygugglsterone were isolated from the n-hexane-soluble fraction (HSF) of the methanol extract of guggul, the oleogum resin of Commiphora wightii together with six known compounds: diasesartemin, (+)-epi-magnolin, (+)-diayangamb...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.662651
更新日期:2013-01-01 00:00:00
abstract::A series of 4-hydroxy-3,4-dialkyl-2,6-diaryl-piperidine (7-12) have been synthesised by reduction of 3-alkyl-2,6-diarylpiperidin-4-one using the Grignard reagent. Structural assignments and conformational analysis of the compounds were established based on the spectral studies. All the piperdin-4-ol derivatives (7-12)...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.671317
更新日期:2013-01-01 00:00:00
abstract::Diphysidione (1), a new p-hydroxyphenyl anhydride, and vitexin (2) were isolated from the leaves of Diphysa carthagenensis. The structure of the new metabolite was characterised as 4-(4-hydroxy-phenyl)-3H-pyran-2,6-dione using 1D and 2D NMR spectroscopy. ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.668689
更新日期:2013-01-01 00:00:00
abstract::Study of the chemical constituents of ethanol extract from the aerial parts of Atalantia buxifolia led to the identification of a new acridone alkaloid named as buxifoliadine (1), along with known compounds citrusinine--I (2), N-methylatalaphylline (3), Severinolid (4) and cycloseverinolide (5). Structural elucidation...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.796470
更新日期:2013-01-01 00:00:00
abstract::A new phenolic glycoside, methylpicraquassioside B (6), together with nine known glycosides, cnidioside A (1), cnidioside B (2), picraquassioside A (3), methylpicraquassioside A (4), picraquassioside B (5), xanthotoxol-8-β-glucoside (7), 5-methoxy-xanthotoxol-8-β-glucoside (8), 8-methoxy-xanthotoxol-5-β-glucoside (9) ...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.796467
更新日期:2013-01-01 00:00:00
abstract::A 70% ethanol extract from the leaves of Rosa davurica showed significant antioxidant activity in both superoxide anion and 1,1-diphenyl-2-picrylhydrazyl (DPPH) free radical-scavenging assays. Phytochemical study of this extract resulted in the isolation of eight compounds, including a new flavonoid glycoside. The che...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.811408
更新日期:2013-01-01 00:00:00
abstract::The essential oils obtained by hydrodistillation from the leaves of Tabernaemontana catharinensis had their composition analysed by GC-MS. A total of 18 substances were identified, consisting of a complex mixture of sesquiterpenes (83.52%), monoterpenes (5.46%) and triterpenes (4.56%). The main components in the oil w...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2011.653971
更新日期:2013-01-01 00:00:00
abstract::Phytochemical investigation of chloroform extract from the leaves of the marine plant Posidonia oceanica (L.) Delile (Posidoniaceae), yielded posidozinol, a new methylated sesquiterpene along with β-sitosterol and four known fatty acids: palmitic, palmitoleic, oleic and linoleic acids. The structure elucidation has be...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.725401
更新日期:2013-01-01 00:00:00
abstract::Fungi are important organisms related to the production of antibiotics, many of which are commercially available and used in the clinic to treat infections. Infectious diseases represent a leading cause of death worldwide, being a severe threat to public health, especially with the rise of multi-resistant microorganis...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.738202
更新日期:2013-01-01 00:00:00
abstract::A new natural diketopiperazine (1) was obtained from the culture broth of Microbispora aerata strain imbas-11A, isolated from penguin excrements collected on the Antarctic Livingston Island. Compound 1 was purified consecutively by solvent extraction, silica gel column chromatography and preparative HPLC. The structur...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.665911
更新日期:2013-01-01 00:00:00
abstract::This work reports on the composition and bionutritional value of organic virgin olive oil from the Nocellara del Belice variety, one cultivated in the olive areas of the Sicily region, Italy. Destoned oils obtained by processing olives with a destoning-based procedure were compared with conventional oils. This innovat...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.762918
更新日期:2013-01-01 00:00:00
abstract::Antibacterial activities of prenylated xanthones from Garcinia mangostana and their synthetic analogues were investigated, and their structure-activity relationships have been studied. γ-Mangostin has shown antibacterial activity against methicillin-resistant Staphylococcus aureus (MRSA), methicillin sensitive Staphyl...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.678348
更新日期:2013-01-01 00:00:00
abstract::Eight steroids, including five withanolides (1-5) and three other ergostane-type steroids (6-8), were isolated from the aerial parts of the halophyte Datura stramonium L., which were collected from the Yellow River Delta in China. Their structures were elucidated on the basis of extensive spectroscopic methods, especi...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.800981
更新日期:2013-01-01 00:00:00
abstract::Phytochemical investigation on the stem bark of Shorea maxwelliana yielded five oligostilbenoids identified as α-viniferin (1), maximol A (2), vaticanol A (3), suffruticosol A (4) and vaticanol G (5). Chemotaxonomy of isolated compounds was discussed briefly. Major compounds were tested for neurotoxic and cytotoxic ac...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.730047
更新日期:2013-01-01 00:00:00
abstract::Phorbol esters (PEs) are diterpenes present in Jatropha curcas L. seeds and have a myriad of biological activities. Since PEs are toxic, they are considered to be futile in Jatropha-based biodiesel production chain. In the present study, the extracted PEs from Jatropha oil were used as a starting material to synthesis...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2012.716057
更新日期:2013-01-01 00:00:00
abstract::Essential oils hydrodistilled from the leaves and stem barks of Goniothalamus macrocalyx Ban., Goniothalamus albiflorus Ban. and Goniothalamus tamirensis Pierre ex Fin. & Gagnep. growing in Vietnam were analysed by gas chromatography (GC) and GC-coupled with mass spectrometry. α-Pinene (1.7-50.0%), β-pinene (tr-6.8%),...
journal_title:Natural product research
pub_type: 杂志文章
doi:10.1080/14786419.2013.814051
更新日期:2013-01-01 00:00:00