Panax ginseng, known as the "king of herbs", is a highly valued medicinal plant, and its medicinal parts include roots, stems, leaves, flowers, and fruits, among which the roots are the most commonly used. The main active components of this medicinal plant include triterpenoid saponins, polysaccharides, peptides, and volatile oils. The chemical components and active metabolites endow this herb with a variety of pharmacological effects, and thus this herb is used to treat various diseases and play healthcare roles.
View Article and Find Full Text PDFGuaiane-type sesquiterpenoids are most prevalent in the genus Cinnamomum. Hence this study investigates the structures, anti-nociceptive and IL-6 targeted anti-inflammatory potential of three novels C-14 guaiane-type sesquiterpenoids and two new monoterpenoids, isolated from Cinnamomum migao. The structures were precisely confirmed and characterized through the modern chromatographic and spectroscopic techniques of HRESIMS, D NMR, D NMR, experimental circular dichroism (ECD), and calculated (ECD).
View Article and Find Full Text PDFTriggering through abiotic stress, including chemical triggers like heavy metals, is a new technique for drug discovery. In this research, the effect of heavy metal Nickel on actinobacteria SH-1327 to obtain a stress-derived compound was firstly investigated. A new compound cyclo-(D)-Pro-(D)-Phe (CDPDP) was triggered from the actinobacteria strain SH-1327 with the addition of nickel ions 1 mM.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
September 2022
Twelve flavonoids were isolated and purified from the ethyl acetate fraction of 95% ethanol extract of Dalbergia odorifera by heat reflux extraction, solvent extraction, recrystallization, normal phase silica gel, Sephadex LH-20, MCI gel and HPLC methods. The structures were identified with multiple spectroscopic methods, including 1 D-NMR, 2 D-NMR and MS. The compounds were identified as 6,7,8-trimethoxy-5,4'-dihydroxy isoflavone(1), medicarpin(2), 7,2'-dihydroxy-4'-methoxy-isoflavanol(3), biochanin A(4), prunetin(5), genistein(6), pratensein(7), 3-(4-hydroxyphenyl)-6-isopentenyl-7-methoxy-4H-chromen-4-one(8), tectorigenin(9), irisolidone(10), vestitol(11), and formononetin(12).
View Article and Find Full Text PDFKaixinsan powder (KXS), a classic prescription of traditional Chinese Medicine (TCM), is widely used in the treatment of depression, but its mechanism remains unclear. The network pharmacology method was used to constructe the "herb-component-target" network, and elucidated KXS potential mechanisms of action in the treatment of depression. Moreover, molecular docking was applied to valid the important interactions between the ingredients and the target protein.
View Article and Find Full Text PDFThe phytochemical assessment of Cinnamomum migao H. W. Li fruits illustrated the isolation and identification of ten undescribed guaiane-type sesquiterpenoids "miganoids A-J″ and one undescribed sesquiterpene "7(S)-(hydroxypropanyl)-3-methyl-2-(4-oxopentyl) cyclohex-2-en-1-one".
View Article and Find Full Text PDFThree undescribed guaiane-type sesquiterpenes (), and a monoterpenoid () along with eleven known compounds () were isolated from the crude extract of Merr. The structures of all the isolated compounds were extensively elucidated on the basis of comprehensive spectroscopic techniques (HRESIMS, 1 D NMR, and 2 D NMR). Their relative and absolute configurations were comprehensively established by NOESY spectroscopy, circular dichroism (ECD) and the calculated ECD analysis.
View Article and Find Full Text PDFFive new guaiane dimers, xylopidimers A-E (), were isolated and identified from the roots of . The structures of were elucidated by spectroscopic analysis and further confirmed by single-crystal X-ray diffraction. On the basis of the results of single-crystal X-ray analysis, showed different carbon skeletons.
View Article and Find Full Text PDFChinese medicine (CM) is usually prescribed as CM formula to treat disease. The lack of effective research approach makes it difficult to elucidate the molecular mechanisms of CM formula owing to its complicated chemical compounds. Network pharmacology is increasingly applied in CM formula research in recent years, which is identified suitable for the study of CM formula.
View Article and Find Full Text PDFFour unprecedented guaiane dimers, xylopsides A-D (1-4), were isolated and identified from the roots of Xylopia vielana. The structures of 1-4 were elucidated by spectroscopic analysis, Cu Kα X-ray crystallography and CD spectra. 1-4 showed two bridged pentacyclic skeletons between two guaiane-type sesquiterpenes, which were characterized as two different bridged ring systems.
View Article and Find Full Text PDFFive new guaiane-type sesquiterpenoid dimers vielopsides A-E, connecting patterns through two direct CC bonds (C-2 to C-2', C-4 to C-1'), were isolated from the roots of Xylopia vielana. Their absolute configurations were established by NOE analysis, the Cu Kα X-ray crystallographic and circular dichroism (CD) experiment. Among them, compound 5 showed moderate activity IC values of 33.
View Article and Find Full Text PDFSix new guaiane dimers, xyloplains A-F (1-6), with connecting patterns through two direct C-C bonds (C-1 to C-3', C-2 to C-1'), were isolated from the roots of . Their structures were elucidated clearly using extensive analysis of 1D NMR and 2D NMR, combined with Cu-Kα X-ray diffraction and circular dichroism (CD) experiments. In additon, all of the isolates were tested for anti-inflammatory activity by measuring the amount of nitric oxide produced.
View Article and Find Full Text PDFThree new aporphine alkaloids, xylopialoids A-C (1-3), along with three known aporphine alkioids (4-6) and three other known compounds (7-9) were isolated from the roots of Xylopia vielana. Among these three new aporphine alkaloids, xylopialoid C (3) showed a special carbamido group directly connected to the nitrogen. The chemical structures of these nine compounds were determined by a combination of 1D and 2D NMR, MS, CD spectrum and Cu Kα X-ray crystallographic analyses.
View Article and Find Full Text PDFSeven new lignan glycosides (1-3, 8-10, and 14) and 17 known compounds were isolated from the branches of Alangium kurzii Craib var. laxifolium. Their structures were established by spectroscopic analysis and circular dichroism (CD) and X-ray analysis.
View Article and Find Full Text PDFEight new γ-lactam alkaloids, hemerominors A-H (1-8), including two pair of epimers (1-4), together with six known compounds (9-14) were isolated from the roots of Hemerocallis minor Mill. The structures of 1-8 were established on the basis of extensive NMR studies and HR-MS measurements as well as comparison with literature data. The absolute configurations of 1-8 were determined by CD spectral analysis and modified Mosher's method.
View Article and Find Full Text PDFA phytochemical investigation on the roots of Campylotropis hirtella afforded nine new isoflavones (3-9, 12, 15), two new isoflavans (10 and 11), one new coumestan (1), and three new prenylated benzoic acid derivatives (2, 13, 14), together with twenty-four known compounds. Their structures were established by spectroscopic analysis and circular dichroism data. The isolated compounds were also evaluated for their antibacterial activities against Enterococcus faecalis, Salmonella gallinarum, Streptococcus suis, Streptococcus agalactiae, Aeromonas hydrophila, Pseudomonas aeruginosa, Bacillus subtilis, Riemerella anatipestifer, and Vibrio alginolyticus.
View Article and Find Full Text PDFOne new phenolic compound (1) and one new flavan (2), together with eight known compounds (3-10) were isolated from the stems and twigs of Euonymus glabra Roxb. Their structures were elucidated mainly on the basis of 1D and 2D spectroscopic methods and circular dichroism analysis. In addition, compounds 1-10 were tested for their inhibitory effects against LPS-induced NO production in RAW264.
View Article and Find Full Text PDFIn the post-genomic era, biological studies are characterized by the rapid development and wide application of a series of "omics" technologies, including genomics, proteomics, metabolomics, transcriptomics, lipidomics, cytomics, metallomics, ionomics, interactomics, and phenomics. These "omics" are often based on global analyses of biological samples using high through-put analytical approaches and bioinformatics and may provide new insights into biological phenomena. In this paper, the development and advances in these omics made in the past decades are reviewed, especially genomics, transcriptomics, proteomics and metabolomics; the applications of omics technologies in pharmaceutical research are then summarized in the fields of drug target discovery, toxicity evaluation, personalized medicine, and traditional Chinese medicine; and finally, the limitations of omics are discussed, along with the future challenges associated with the multi-omics data processing, dynamics omics analysis, and analytical approaches, as well as amenable solutions and future prospects.
View Article and Find Full Text PDFγ-Hydroxynitrile glucosides (prinsepicyanosides A-E) were isolated alongside 11 known compounds from seeds of Prinsepia utilis Royle. Their structures were determined by detailed analysis of NMR and MS spectroscopic data. The relative configuration of prinsepicyanoside C was established by Cu-Kα X-ray crystallography.
View Article and Find Full Text PDFOne new 1,10-secoeudesmanolide (1), two eudesmanolides (2 and 3), together with nine known compounds (4-12) were isolated from the aerial parts of Inula britannica. The structures of the new compounds were elucidated by detailed spectroscopic analysis, including HRESIMS and 2D-NMR spectroscopic method. In addition, compounds 1-4 were tested for their inhibitory effects against LPS-induced NO production in RAW264.
View Article and Find Full Text PDFEight new (1-8) and two known (9 and 10) sesquiterpenic acids featuring α-methylene-γ-carboxyl units were isolated from the whole plants of Inula wissmanniana, along with two new germacranolides (11 and 12). Their structures were elucidated based on detailed spectroscopic analysis, including HRESIMS, 1D and 2D NMR, and X-ray crystallography. Notably, the skeleton of 1 was firstly discovered from nature, while that of 2 was discovered for the second time.
View Article and Find Full Text PDFPhytochemical investigation of Inula wissmanniana Hand.-Mazz. afforded 21 eudesmane and germacrane derivatives, including rare 4,5-secoeudesman-12,5-olide, eudesman-12,5-olide, 3,4-secoeudesman-12-oic acid, and germacra-4-en-12,6-olides.
View Article and Find Full Text PDFFour new pseudoguaianolides (1-4), one new guaianolide (5), together with ten known compounds (6-15) were isolated from the aerial parts of Inula hupehensis. Their structures were elucidated mainly on the basis of 1D and 2D spectroscopic methods and circular dichroism analysis. In addition, compounds 1-10 and 13 were tested for their inhibitory effects against LPS-induced NO production in RAW264.
View Article and Find Full Text PDFAphanamgrandiol A (1), a novel triterpenoid with a bicyclo[3,2,1]octane ring skeleton produced by 2,3-ring opening and 2,6-ring closure, was isolated from the stems of Aphanamixis grandifolia. The structures were established on the basis of extensive spectroscopic methods, including 1D and 2D NMR techniques, and determined unambiguously by X-ray crystal diffraction. Aphanamgrandiol A showed moderate cytotoxicities against MCG-803, SKOV-3, HCT116 and HepG2 cell lines.
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