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1.
Anal Bioanal Chem ; 416(7): 1571-1587, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38279012

RESUMO

Dragon's Blood (DB) serves as a precious Chinese medicine facilitating blood circulation and stasis dispersion. Daemonorops draco (D. draco; Qi-Lin-Jie) and Dracaena cochinchinensis (D. cochinchinenesis; Long-Xue-Jie) are two reputable plant sources for preparing DB. This work was designed to comprehensively characterize and compare the metabolome differences between D. draco and D. cochinchinenesis, by integrating liquid chromatography/mass spectrometry and untargeted metabolomics analysis. Offline two-dimensional liquid chromatography/ion mobility-quadrupole time-of-flight mass spectrometry (2D-LC/IM-QTOF-MS), by utilizing a powerful hybrid scan approach, was elaborated for multicomponent characterization. Configuration of an XBridge Amide column and an HSS T3 column in offline mode exhibited high orthogonality (A0 0.80) in separating the complex components in DB. Particularly, the hybrid high-definition MSE-high definition data-dependent acquisition (HDMSE-HDDDA) in both positive and negative ion modes was applied for data acquisition. Streamlined intelligent data processing facilitated by the UNIFI™ (Waters) bioinformatics platform and searching against an in-house chemical library (recording 223 known compounds) enabled efficient structural elucidation. We could characterize 285 components, including 143 from D. draco and 174 from D. cochinchinensis. Holistic comparison of the metabolomes among 21 batches of DB samples by the untargeted metabolomics workflows unveiled 43 significantly differential components. Separately, four and three components were considered as the marker compounds for identifying D. draco and D. cochinchinenesis, respectively. Conclusively, the chemical composition and metabolomic differences of two DB resources were investigated by a dimension-enhanced analytical approach, with the results being beneficial to quality control and the differentiated clinical application of DB.


Assuntos
Quimiometria , Metaboloma , Extratos Vegetais , Espectrometria de Massas , Cromatografia Líquida , Cromatografia Líquida de Alta Pressão/métodos
2.
Molecules ; 29(10)2024 May 20.
Artigo em Inglês | MEDLINE | ID: mdl-38792262

RESUMO

Chebulae Fructus (CF) is known as one of the richest sources of hydrolyzable tannins (HTs). In this study, ultra-performance liquid chromatography coupled with a photodiode array detector method was established for simultaneous determination of the 12 common phenolcarboxylic and tannic constituents (PTCs). Using this method, quantitative analysis was accomplished in CF and other four adulterants, including Terminaliae Belliricae Fructus, Phyllanthi Fructus, Chebulae Fructus Immaturus, and Canarii Fructus. Based on a quantitative analysis of the focused compounds, discrimination of CF and other four adulterants was successfully accomplished by hierarchical cluster analysis and principal component analysis. Additionally, the total contents of the 12 compounds that we focused on in this study were unveiled as 148.86 mg/g, 96.14 mg/g, and 18.64 mg/g in exocarp, mesocarp, and endocarp and seed of CF, respectively, and PTCs were witnessed to be the most abundant in the exocarp of CF. Noticeably, the HTs (chebulagic acid, chebulanin acid, chebulinic acid, and punicalagin) were observed to be ultimately degraded to chebulic acid, gallic acid, and ellagic acid during sunlight-drying of the fresh fruits. As a result, our study indicated that CF and its adulterants could be distinguished by the observed 12 PTCs, which were mainly distributed in the exocarp of the fruits. The HTs were prone to degrade into the three simple phenolcarboxylic acids during drying or processing, allowing us to obtain a more comprehensive understanding of the PTCs, with great significance in the improved quality of CF and related products.


Assuntos
Frutas , Taninos Hidrolisáveis , Taninos Hidrolisáveis/química , Taninos Hidrolisáveis/análise , Frutas/química , Cromatografia Líquida de Alta Pressão , Terminalia/química , Taninos/análise , Taninos/química , Extratos Vegetais/química , Extratos Vegetais/análise
3.
Phytochem Rev ; : 1-46, 2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-37359712

RESUMO

Cyperus rotundus L. has been widely used in the treatment and prevention of numerous diseases in traditional systems of medicine around the world, such as nervous, gastrointestinal systems diseases and inflammation. In traditional Chinese medicine (TCM), its rhizomes are frequently used to treat liver disease, stomach pain, breast tenderness, dysmenorrheal and menstrual irregularities. The review is conducted to summarize comprehensively the plant's vernacular names, distribution, phytochemistry, pharmacology, toxicology and analytical methods, along with the data mining for TCM prescriptions containing C. rotundus. Herein, 552 compounds isolated or identified from C. rotundus were systematically collated and classified, concerning monoterpenoids, sesquiterpenoids, flavonoids, phenylpropanoids, phenolics and phenolic glycosides, triterpenoids and steroids, diterpenoids, quinonoids, alkaloids, saccharides and others. Their pharmacological effects on the digestive system, nervous system, gynecological diseases, and other bioactivities like antioxidant, anti-inflammatory, anti-cancer, insect repellent, anti-microbial activity, etc. were summarized accordingly. Moreover, except for the data mining on the compatibility of C. rotundus in TCM, the separation, identification and analytical methods of C. rotundus compositions were also systematically summarized, and constituents of the essential oils from different regions were re-analyzed using multivariate statistical analysis. In addition, the toxicological study progresses on C. rotundus revealed the safety property of this herb. This review is designed to serve as a scientific basis and theoretical reference for further exploration into the clinical use and scientific research of C. rotundus. Supplementary Information: The online version contains supplementary materials available at 10.1007/s11101-023-09870-3.

4.
Planta Med ; 89(1): 46-61, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-35253147

RESUMO

The flavonoid constituents of Aesculus wilsonii, a source of the Chinese medicinal drug Suo Luo Zi, and their in vitro anti-inflammatory effects were investigated. Fifteen flavonoids, including aeswilflavonosides IA-IC (1:  - 3: ) and aeswilflavonosides IIA-IIE (4:  - 8: ), along with seven known derivatives were isolated from a seed extract. Their structures were elucidated by extensive spectroscopic methods, acid and alkaline hydrolysis, and calculated electronic circular dichroism spectra. Among them, compounds 3: and 7: possess a 5-[2-(carboxymethyl)-5-oxocyclopent-yl]pent-3-enylate or oleuropeoylate substituent, respectively, which are rarely reported in flavonoids. Compounds 2, 3, 7: , and 12:  - 15: were found to inhibit lipopolysaccharide-induced nitric oxide production in RAW 264.7 cell lines. In a mechanistic assay, the flavonoid glycosides 2, 3: , and 7: reduced the expressions of interleukin-6 and tumor necrosis factor-alpha induced by lipopolysaccharide. Further investigations suggest that 2: and 3: downregulated the protein expression of tumor necrosis factor-alpha and interleukin-6 by inhibiting the phosphorylation of p38. Compound 7: was found to reduce the production of inducible nitric oxide synthase, and the secretion of tumor necrosis factor-alpha and interleukin-6 through inhibiting nuclear factor kappa-light-chain-enhancer of activated B signaling pathway. Compounds 2, 3: , and 7: possessed moderate inhibitory activity on the expression of signal transducer and activator of transcription-3. Taken together, the data indicate that the flavonoid glycosides of A. wilsonii seeds exhibit nitric oxide release inhibitory activity through mitogen-activated protein kinase (p38), nuclear factor kappa-light-chain-enhancer of activated B, and signal transducer and activator of transcription-3 cross-talk signaling pathways.


Assuntos
Aesculus , NF-kappa B , NF-kappa B/metabolismo , Flavonoides/farmacologia , Aesculus/metabolismo , Interleucina-6/metabolismo , Fator de Necrose Tumoral alfa/metabolismo , Óxido Nítrico/metabolismo , Lipopolissacarídeos/farmacologia , Macrófagos , Proteínas Quinases p38 Ativadas por Mitógeno/metabolismo , Proteínas Quinases p38 Ativadas por Mitógeno/farmacologia , Transdução de Sinais , Óxido Nítrico Sintase Tipo II/metabolismo , Glicosídeos/farmacologia , Glicosídeos/metabolismo
5.
Chem Biodivers ; 20(9): e202300693, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37614210

RESUMO

Chemical investigation on the water-soluble constituents of Stemona tuberosa Lour. resulted in the isolation of a previously undescribed furfural derivative namely (S)-5-((R)-hydroxy(5-(hydroxymethyl)furan-2-yl)methyl)-5-methylfuran-2(5H)-one and twenty-five known compounds from the water decoction of the dried root tubers. Their structures were determined by analysis of the extensive spectroscopic data, including 1D/2D NMR, HR-ESI-MS, and ORD, as well as the ECD simulation and comparison. Most of them were phenolic and among them, four compounds were isolated from Stemona plants for the first time. This study uncovers diverse constituents from water decoction of S. tuberosa dedicated for its quality control and allows for the exploitation of chemical markers with potential significance for discrimination of Stemona plants.


Assuntos
Alcaloides , Stemonaceae , Alcaloides/química , Stemonaceae/química , Furaldeído/análise , Tubérculos/química , Espectroscopia de Ressonância Magnética , Estrutura Molecular
6.
Chem Biodivers ; 20(12): e202301381, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37968243

RESUMO

Four undescribed steroidal compounds along with twenty known compounds were isolated from n-butanol extracted fraction of the whole plants of Solanum lyratum Thunb (SLNF). Their structures were assigned based on analyses of the extensive spectroscopic data (including MS, 1D/2D NMR, and ECD) or comparisons of the NMR data with those reported. Among the knowns, three compounds were isolated from Solanum plants for the first time, while one compound was isolated from S. lyratum for the first time. In addition, the cytotoxicities of these isolates against human colon SW480 and hepatoma Hep3B cells were evaluated by a MTT assay. And, nine of them and SLNF exhibited significant activities against both SW480 and Hep3B cells, while twelve of them significantly inhibited the activities of SW480 cells. This study allows for the exploitation of chemical markers with potential significance in discrimination of Solanum plants, and uncovers the diverse steroidal constituents from S. lyratum dedicated for its future application in cancer treatment.


Assuntos
Saponinas , Solanum , Humanos , Solanum/química , Saponinas/farmacologia , Esteroides/farmacologia , Estrutura Molecular
7.
Molecules ; 28(14)2023 Jul 13.
Artigo em Inglês | MEDLINE | ID: mdl-37513256

RESUMO

Nardosinone, a predominant bioactive product from Nardostachys jatamansi DC, is well-known for its promising therapeutic applications, such as being used as a drug on anti-inflammatory, antidepressant, cardioprotective, anti-neuroinflammatory, anti-arrhythmic, anti-periodontitis, etc. However, its stability under varying environmental conditions and its degradation products remain unclear. In this study, four main degradation products, including two previously undescribed compounds [2-deoxokanshone M (64.23%) and 2-deoxokanshone L (1.10%)] and two known compounds [desoxo-narchinol A (2.17%) and isonardosinone (3.44%)], were firstly afforded from the refluxed products of nardosinone in boiling water; their structures were identified using an analysis of the extensive NMR and X-ray diffraction data and the simulation and comparison of electronic circular dichroism spectra. Compared with nardosinone, 2-deoxokanshone M exhibited potent vasodilatory activity without any of the significant anti-neuroinflammatory activity that nardosinone contains. Secondly, UPLC-PDA and UHPLC-DAD/Q-TOF MS analyses on the degradation patterns of nardosinone revealed that nardosinone degraded more easily under high temperatures and in simulated gastric fluid compared with the simulated intestinal fluid. A plausible degradation pathway of nardosinone was finally proposed using nardosinonediol as the initial intermediate and involved multiple chemical reactions, including peroxy ring-opening, keto-enol tautomerization, oxidation, isopropyl cleavage, and pinacol rearrangement. Our findings may supply certain guidance and scientific evidence for the quality control and reasonable application of nardosinone-related products.


Assuntos
Sesquiterpenos , Sesquiterpenos/química , Temperatura , Sesquiterpenos Policíclicos , Anti-Inflamatórios
8.
Cell Commun Signal ; 19(1): 9, 2021 01 21.
Artigo em Inglês | MEDLINE | ID: mdl-33478523

RESUMO

BACKGROUND: To investigate the effect of lactic acid (LA) on the progression of bone metastasis from colorectal cancer (CRC) and its regulatory effects on primary CD115 (+) osteoclast (OC) precursors. METHODS: The BrdU assay, Annexin-V/PI assay, TRAP staining and immunofluorescence were performed to explore the effect of LA on the proliferation, apoptosis and differentiation of OC precursors in vitro and in vivo. Flow cytometry was performed to sort primary osteoclast precursors and CD4(+) T cells and to analyze the change in the expression of target proteins in osteoclast precursors. A recruitment assay was used to test how LA and Cadhein-11 regulate the recruitment of OC precursors. RT-PCR and Western blotting were performed to analyze the changes in the mRNA and protein expression of genes related to the PI3K-AKT pathway and profibrotic genes. Safranin O-fast green staining, H&E staining and TRAP staining were performed to analyze the severity of bone resorption and accumulation of osteoclasts. RESULTS: LA promoted the expression of CXCL10 and Cadherin-11 in CD115(+) precursors through the PI3K-AKT pathway. We found that CXCL10 and Cadherin-11 were regulated by the activation of CREB and mTOR, respectively. LA-induced overexpression of CXCL10 in CD115(+) precursors indirectly promoted the differentiation of osteoclast precursors through the recruitment of CD4(+) T cells, and the crosstalk between these two cells promoted bone resorption in bone metastasis from CRC. On the other hand, Cadherin-11 mediated the adhesion between osteoclast precursors and upregulated the production of specific collagens, especially Collagen 5, which facilitated fibrotic changes in the tumor microenvironment. Blockade of the PI3K-AKT pathway efficiently prevented the progression of bone metastasis caused by lactate. CONCLUSION: LA promoted metastatic niche formation in the tumor microenvironment through the PI3K-AKT pathway. Our study provides new insight into the role of LA in the progression of bone metastasis from CRC. Video Abstract.


Assuntos
Neoplasias Ósseas/metabolismo , Neoplasias Colorretais/metabolismo , Ácido Láctico/metabolismo , Animais , Neoplasias Ósseas/genética , Neoplasias Ósseas/secundário , Linfócitos T CD4-Positivos , Caderinas/genética , Caderinas/metabolismo , Adesão Celular , Diferenciação Celular , Movimento Celular , Células Cultivadas , Quimiocina CXCL10/genética , Quimiocina CXCL10/metabolismo , Técnicas de Cocultura , Colágeno/genética , Colágeno/metabolismo , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Proteína de Ligação ao Elemento de Resposta ao AMP Cíclico/metabolismo , Masculino , Camundongos Endogâmicos C57BL , Osteoclastos , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Serina-Treonina Quinases TOR/metabolismo , Microambiente Tumoral
9.
Phytother Res ; 34(6): 1347-1357, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-31908073

RESUMO

Prunus cerasoides (PC) products contain relatively high levels of flavones and isoflavones and may be potential sources of phytoestrogens for postmenopausal symptom relief. We assessed the PC extract (PCE) and its representative constituents in vitro with assays for estrogen receptor alpha binding, estrogen response element transcriptional activity, cell proliferation, and gene expression changes for pS2 in MCF-7 cells. PCE and its compounds showed strong estrogen receptor binding affinities and estrogen response element induction. A previously undescribed compound (designated as compound 18), now identified as being gentisic acid, 5-O-ß-D-(6'-O-trans-4-coumaroyl)-glucopyranoside, also showed potent estrogenic properties and induced proliferation of MCF-7 cells. PCE was evaluated for its in vivo uterotrophic effects in immature female rats as well as for its lipid lowering effects in estrogen-deprived animals. For ovariectomized rats and aged female mice, PCE-treated groups had lower plasma triglyceride levels compared with control and, for the same comparison, had reduced serum levels of liver stress/damage markers. Our results point to strong estrogenic activities and beneficial metabolic effects for PCE, with properties that put PC and its extracts as promising sources of phytoestrogens for symptom relief in menopausal and postmenopausal cases.


Assuntos
Estrogênios/uso terapêutico , Extratos Vegetais/química , Prunus/química , Animais , Modelos Animais de Doenças , Estrogênios/farmacologia , Feminino , Humanos , Células MCF-7/metabolismo , Camundongos , Roedores
10.
Bioorg Chem ; 81: 35-43, 2018 12.
Artigo em Inglês | MEDLINE | ID: mdl-30092385

RESUMO

Four sesquiterpenoid-chalcone hybrids (nardochalaristolones A-D, 1-4), a pair of epimeric sesquiterpenoid-flavonone hybrids ((2'S)- and (2'R)-nardoflavaristolone A, 5 and 6), and a sesquiterpenoid dimer (dinardokanshone F, 7), all sharing a kanshone C-derived sesquiterpenoid unit, were isolated from the underground parts of Nardostachys jatamansi (D.Don) DC. Their structures were elucidated by analysis of the extensive spectroscopic data, and the absolute configurations were established by analysis of 2D NMR spectroscopic data including NOESY data, combined with comparisons of experimental and calculated electronic circular dichroism spectra. Further, the plausible biosynthetic pathways for these compounds were proposed. And the results of SERT activity assay revealed that nardochalaristolones C-D (3 and 4) and nardoflavaristolone A (5 and 6) significantly enhanced SERT activity, while other compounds didn't show any SERT regulatory activities.


Assuntos
Chalcona/isolamento & purificação , Nardostachys/química , Sesquiterpenos/isolamento & purificação , Chalcona/química , Estrutura Molecular , Sesquiterpenos/química
11.
Planta Med ; 84(8): 536-543, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29202512

RESUMO

Nardostachys jatamansi is a well-documented herbal agent used to treat digestive and neuropsychiatric disorders in oriental medicinal systems. However, few simple, rapid, and comprehensive methods were reported for quality assessment and control of N. jatamansi. Herein, a UPLC with photodiode array detection method was developed for both fingerprint investigation of N. jatamansi and simultaneous quantitative analysis of the six serotonin transporter modulatory constituents in N. jatamansi. For chromatographic fingerprinting, 24 common peaks were selected as characteristic peaks to assess the consistency of N. jatamansi samples from different retail sources. Six of the common peaks (5, 7, 12: , and 16:  - 18: ) were identified as desoxo-narchinol A, buddleoside, isonardosinone, nardosinone, kanshone H, and (-)-aristolone, respectively, by phytochemical investigation. Five of the six compounds significantly either enhanced or inhibited serotonin transporter activity, while (-)-aristolone (18: ) didn't show any serotonin transporter activity. In quantitative analysis, the six compounds showed good linearity (r > 0.999) within test ranges. The precision, expressed as relative standard deviation, was in the range of 0.25 - 2.77%, and the recovery of the method was in the range of 92 - 105%. The UPLC-photodiode array detection-based fingerprint analysis and quantitative methods reported here could be used for routine quality control of N. jatamansi.


Assuntos
Cromatografia Líquida de Alta Pressão/métodos , Medicamentos de Ervas Chinesas/química , Nardostachys/química , Controle de Qualidade
12.
Bioorg Med Chem Lett ; 27(4): 875-879, 2017 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-28094186

RESUMO

Nardonaphthalenones A and B (1-2), one new apo-α-carotenone (3) and four new monoterpenoids (4, 8-9 and 11), along with six known compounds (5-7, 10, 12-13) were isolated from the dried roots and rhizomes of Nardostachys chinensis Batal. Their structures were elucidated by analysis of the spectroscopic data including NMR, HRESIMS and circular dichroism data. Furthermore, the serotonin transporter (SERT)-regulating activities of these isolates were evaluated, among them compound 3 showed the strongest enhancement activity while compound 12 showed a moderate inhibition activity on SERT.


Assuntos
Monoterpenos/química , Naftalenos/química , Nardostachys/química , Expressão Gênica/efeitos dos fármacos , Células HEK293 , Humanos , Espectroscopia de Ressonância Magnética , Conformação Molecular , Monoterpenos/isolamento & purificação , Monoterpenos/farmacologia , Naftalenos/isolamento & purificação , Naftalenos/farmacologia , Nardostachys/metabolismo , Raízes de Plantas/química , Raízes de Plantas/metabolismo , Rizoma/química , Rizoma/metabolismo , Proteínas da Membrana Plasmática de Transporte de Serotonina/química , Proteínas da Membrana Plasmática de Transporte de Serotonina/genética , Proteínas da Membrana Plasmática de Transporte de Serotonina/metabolismo
13.
Chem Biodivers ; 14(5)2017 May.
Artigo em Inglês | MEDLINE | ID: mdl-28130824

RESUMO

Four new iridoids, 2'-O-(E)-coumaroylshanzhiside (1), 6'-O-(E)-coumaroylshanzhiside (2), 8α-butylgardenoside B (3), 6α-methoxygenipin (4), and one new phenylpropanoid glucoside, 5-(3-hydroxypropyl)-2-methoxyphenyl ß-d-glucopyranoside (5), together with sixteen known compounds, were isolated from the edible flowers of wild Gardenia jasminoides J.Ellis. Their chemical structures were characterized by extensive spectroscopic techniques, including 1D- and 2D-NMR, HR-ESI-MS, and CD experiments. The absolute configurations of the new isolates' sugar moiety were assigned by HPLC analysis of the acid hydrolysates. Furthermore, the antioxidant activities of those isolates were preliminarily evaluated by DPPH scavenging experiment. And comparison of 1 H-NMR spectra for the EtOH extract of G. jasminoides J.Ellis, gardenoside B and geniposide revealed that the flowers of this plant have a considerable content of gardenoside B instead of geniposide in the fruits, indicating different activities and applications in people's daily life.


Assuntos
Gardenia/química , Extratos Vegetais/análise , Antioxidantes/isolamento & purificação , Antioxidantes/farmacologia , Flores/química , Frutas/química , Iridoides/isolamento & purificação , Estrutura Molecular , Extratos Vegetais/química , Análise Espectral
14.
Zhongguo Zhong Yao Za Zhi ; 42(10): 2006-2016, 2017 May.
Artigo em Zh | MEDLINE | ID: mdl-29090565

RESUMO

The existing antidepressants demonstrated delayed onset of clinical effects, so fast-onset antidepressants are required. Essential oil of herbs showed potentials fast-onset antidepressant potential. First, its aromatic odor can directly activate olfactory nerves; its high lipophilicity causes a high blood-brain barrier penetration rate; and its high volatility is suitable for nasal-brain targeting and inhalation delivery. Therefore, essential oils can rapidly regulate brain functions by multiple ways, suggesting a fast-onset antidepressant potential. Second, the advance of studies on chemistry and pharmacology of antidepressant essential oils demonstrated chemical substances, antidepressant effects and possible action mechanisms of antidepressant essential oils. Third, the effect of essential oils' antidepressant components on fast-onset antidepressant targets was investigated. It was found that chemical constituents of essential oils antagonized NMDA receptor activities, suggesting that essential oils have fast-onset antidepressant effect. Finally, characteristics of essential oils, fast-onset antidepressant targets and drug delivery methods are integrated to give full play to essential oils' fast-onset antidepressant advantage and provide a new direction for new drug discovery.


Assuntos
Antidepressivos/farmacologia , Óleos Voláteis/farmacologia , Óleos de Plantas/farmacologia , Administração por Inalação , Encéfalo/efeitos dos fármacos , Humanos
15.
J Asian Nat Prod Res ; 18(7): 697-704, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26841079

RESUMO

A new saponin, isonarthogenin 3-O-ß-d-glucopyranosyl-(1→4)-ß-d-galactopyranoside (1), together with twelve known compounds, were isolated from the rhizomes of Polygonatum sibiricum. The structures of these compounds were elucidated by analysis of their 1D/2D NMR and MS data. Among them, phenol compounds 4-7 and 9-10 showed significant inhibitions against the formation of advanced glycosylation end products, with IC50 values of 0.091 ± 0.0021, 0.10 ± 0.041, 0.014 ± 0.0027, 0.11 ± 0.011, 0.13 ± 0.045, and 0.055 ± 0.019 µM, respectively. The results will promote exploiting potential medicinal use of these compounds in the prevention of diabetic complications and supporting Polygonatum sibiricum as a functional food for healthy and medicinal diet.


Assuntos
Produtos Finais de Glicação Avançada/antagonistas & inibidores , Polygonatum/química , Saponinas/isolamento & purificação , Saponinas/farmacologia , Medicamentos de Ervas Chinesas/química , Humanos , Estrutura Molecular , Ressonância Magnética Nuclear Biomolecular , Rizoma/química , Saponinas/química
16.
Yao Xue Xue Bao ; 51(1): 100-4, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-27405169

RESUMO

A new caffeate compound, (E)-erythro-syringylglyceryl caffeate (1), was isolated from the roots and rhizomes of Nardostachys chinensis Batal., together with nine known phenolic compounds, including (+)-licarin A (2), naringenin 4', 7-dimethyl ether (3), pinoresinol-4-O-ß-D-glucoside (4), caraphenol A (5), Z-miyabenol C (6), protocatechuic acid (7), caffeic acid (8), gallic acid (9) and vanillic acid (10). Their chemical structures were elucidated on the basis of spectroscopic data and physicochemical properties. Furthermore, this is the first report of compounds 2, 5 and 6 from Nardostachys genus.


Assuntos
Ácidos Cafeicos/isolamento & purificação , Nardostachys/química , Ácidos Cafeicos/química , Flavanonas/química , Flavanonas/isolamento & purificação , Furanos/química , Furanos/isolamento & purificação , Glucosídeos/química , Glucosídeos/isolamento & purificação , Hidroxibenzoatos/química , Hidroxibenzoatos/isolamento & purificação , Lignanas/química , Lignanas/isolamento & purificação , Raízes de Plantas/química , Rizoma/química , Ácido Vanílico/química , Ácido Vanílico/isolamento & purificação
17.
Zhongguo Zhong Yao Za Zhi ; 41(10): 1903-1909, 2016 May.
Artigo em Zh | MEDLINE | ID: mdl-28895341

RESUMO

Anaphylactoid reaction (AR) is the most common adverse reaction of injection formulations, however, there are obvious drawbacks in available methods for AR detection. A novel in vitro detection method for AR was established based on fluorescent labeling and high content screen (HCS) system in present study. With the use of RBL-2H3 cells degranulation model, positive cell count was determined with specific cellular membrane fluorescent dye FM4-64 labeling vesicle recycle, and total cells count was determined with specific nucleus fluorescent dye Hochest 3334, and then the ratio of cells degranulation after drug stimulation was calculated. In order to verify the reliability of this HCS method, positive drug Compound 48/80 was first used to confirm the consistence of HCS method with the traditional ß-hexosaminidase release test and the Evans blue staining ears test in mice. The results showed high consistence between HCS method and traditional testing methods, and the HCS method showed higher sensitivity than the other two tests. Then 30 samples of Danhong injection (DHI) with clinical allergy symptoms further were used to confirm the reliability of this HCS method. The HCS results showed high consistence with the clinical report, and the HCS method had the advantage in reducing the interference by drug color. Therefore, this HCS method is reliable, sensitive, simple and high-throughput method in detection of AR, applicable for the AR evaluation of injection formulations, and can provide guidance for safety of clinical application in clinical practice.


Assuntos
Anafilaxia/induzido quimicamente , Degranulação Celular/efeitos dos fármacos , Testes de Toxicidade , Animais , Linhagem Celular , Medicamentos de Ervas Chinesas/toxicidade , Camundongos , Compostos de Piridínio , Compostos de Amônio Quaternário , Reprodutibilidade dos Testes , beta-N-Acetil-Hexosaminidases , p-Metoxi-N-metilfenetilamina/toxicidade
18.
Bioorg Med Chem Lett ; 25(19): 4214-8, 2015 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-26296476

RESUMO

A novel sesquiterpene with an unprecedented epoxy lactone skeleton, named tatarinolactone, together with two new amides, a new biphenylpropanoid and two known lignans were isolated from the rhizomes of Acorus tatarinowii Schott. Their structures were identified as 6,7,8-trihydroxy-4α-isobutyl-4,7-dimethylhexahydro-6,8α-epoxychromen-2(3H)-one (1), (E)-methyl 4-[3-(4-hydroxy-3-methoxyphenyl)acrylamido]butanoate (2), (Z)-methyl 4-[3-(4-hydroxy-3-methoxyphenyl)acrylamido]butanoate enol isomer (3), (R)-4-hydroxy-3-[1-hydroxy-3-(4-hydroxy-3-methoxyphenyl)propan-2-yl]-5-methoxybenzoic acid (4), (2S,3R)-ceplignan (5), and (2R,3S)-ceplignan (6), respectively, based on extensive spectroscopic analysis and by comparison to the known compounds. To test their effects on serotonin transporters, a high content assay using hSERT-HEK293 cell line was adopted. Results indicated that compounds 1 and 4 significantly inhibited SERT activity, while compounds 2, 3, 5, and 6 significantly enhanced SERT activity, which partly explain the traditional uses of the rhizomes of Acorus tatarinowii Schott in treatments of neuropsychiatric and digestive disorders.


Assuntos
Acorus/química , Fenóis/farmacologia , Rizoma/química , Proteínas da Membrana Plasmática de Transporte de Serotonina/metabolismo , Sesquiterpenos/farmacologia , Relação Dose-Resposta a Droga , Células HEK293 , Humanos , Estrutura Molecular , Fenóis/química , Fenóis/isolamento & purificação , Sesquiterpenos/química , Sesquiterpenos/isolamento & purificação , Relação Estrutura-Atividade
19.
Biochem Biophys Res Commun ; 448(3): 241-7, 2014 Jun 06.
Artigo em Inglês | MEDLINE | ID: mdl-24792185

RESUMO

Differentiation-specific microRNAs may play a critical role in MSC differentiation, and they can be altered by PDGF signaling. We propose that PDGF modulates MSC differentiation by regulating microRNA expression. Therefore, we investigated whether PDGF treatment could alter the expression profile of miRNAs in MSCs. Furthermore, we assessed the osteoblast phenotype of MSCs after inducing osteogenic differentiation. We found that PDGF treatment significantly inhibits the osteogenic differentiation of MSCs and that miR-138 gene transcription is controlled by PDGF signaling. Our results confirm that miR-138 inhibits the osteogenic differentiation of MSCs and suppresses the phosphorylation of FAK, ERK1/2, and Runx2. Furthermore, our study clearly demonstrates that downregulation of Runx2 by miR-138 is critical for the PDGF-mediated inhibition of osteogenic differentiation of MSCs. These findings indicate that inhibition of miR-138 function in MSCs, either by treatment with anti-miR-138 or by overexpression of the miR-138 target sequence (miRNA sponge), could represent a potential therapeutic strategy for the treatment of bone homeostasis disorders caused by activation of the PDGF pathway.


Assuntos
Células-Tronco Mesenquimais/citologia , Células-Tronco Mesenquimais/metabolismo , MicroRNAs/genética , MicroRNAs/metabolismo , Osteogênese/genética , Osteogênese/fisiologia , Proteínas Proto-Oncogênicas c-sis/metabolismo , Becaplermina , Diferenciação Celular/genética , Diferenciação Celular/fisiologia , Células Cultivadas , Subunidade alfa 1 de Fator de Ligação ao Core/genética , Regulação para Baixo , Homeostase , Humanos , MicroRNAs/antagonistas & inibidores , Proteínas Recombinantes/metabolismo , Transdução de Sinais , Transcriptoma
20.
Fitoterapia ; 169: 105603, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37421992

RESUMO

Three previously undescribed steroidal constituents including two sterols (1-2) and one pregnane-type steroidal glycoside (6), along with nineteen known ones (3-5, 7-22), were isolated from the 80% alcohol extraction of Solanum nigrum L. Their structures and the absolute configurations were established by analysis of the extensive spectroscopic data (1H/13 NMR, 1H1H COSY, HSQC, HMBC, and NOESY), and/or by comparisons of the experimental electronic circular dichroism (ECD) spectra with those calculated ones by TDDFT method. Further, a MTT assay was applied to demonstrate that compounds 1-4, 6-12, 18, and 22 exhibited significant cytotoxic activities against SW480 cells, and compounds 1-4, 6-14, and 16-22 showed significant cytotoxic activities against Hep3B cells.


Assuntos
Fitosteróis , Solanum nigrum , Solanum , Solanum nigrum/química , Estrutura Molecular , Esteroides/farmacologia , Esteroides/química , Espectroscopia de Ressonância Magnética , Fitosteróis/farmacologia , Solanum/química
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