Ethnopharmacological Relevance: The Chinese herbal Plantaginis Herba (PL) is one of the most widely used plants for both medicinal and dietary purposes. Plantaginis Herba is the main medicine used in a traditional Chinese prescription called Cheqiancao decoction, and it is known for its liver and kidney protective properties.
Aim Of The Study: The aim of the present study was to explore the interventions and mechanisms of PL in ADR nephropathy by performing an integrated analysis of in vitro and in vivo experiments.
From the tuber of Alisma orientale (Sam.) Juzep. (Alismataceae), twenty-four compounds were isolated, including six (1, 2, 3, 10, 14, and 17) that were not yet characterized.
View Article and Find Full Text PDFFive phenylpropanoid dimers chrysanthephenyls A-E, with the 1-O-1'-type (1) and 1-O-2'-type (2-5) ether bond linking modes, were isolated from the aerial parts of Chrysanthemum indicum. Among them, chrysanthephenyls D and E were two pairs of enantiomers, and chrysanthephenyl E was further resolved into its enantiomers (+)-chrysanthephenyl E and (-)-chrysanthephenyl E via chiral-phase HPLC. Their structures were characterized on the basic analysis of the spectroscopic techniques (IR, HRESIMS, 1D and 2D NMR), and their absolute configurations were determined by DP4+ NMR analysis and ECD calculation method.
View Article and Find Full Text PDFBackground: Increased icariin content during the harvesting period is one of the factors limiting the quality improvement of Epimedium sagittatum, and there is currently a lack of scientific and effective biotechnological measures.
Results: In this study, we carried out experiments involving spraying different concentrations (0 µmol·L as control group, 500 µmol·L, 1000 µmol·L and 1500 µmol·L) of methyl jasmonate (MeJA) solution on E. sagittatum leaves.
Based on whole genome data, the identification and expression pattern analysis of the Atropa belladonna WRKY transcription factor family were conducted to provide a theoretical foundation for studying the biological functions and mechanisms of these transcription factors. In this study, bioinformatics methods were employed to identify members of the A. belladonna WRKY gene family and to predict their physicochemical properties, conserved motifs, promoter cis-acting elements, and chromosomal localization.
View Article and Find Full Text PDFPurpose: Doxorubicin (DOX) precipitates cell apoptosis in testicular tissues, and it is imperative to develop drugs to alleviate the spermatogenic disorders it causes. Thunb is often used to treat male sexual disorders. Eugenol, a major component of Thunb.
View Article and Find Full Text PDFThe self-assembly behaviors of rod-coil asymmetric diblock molecular brushes (ADMBs) bearing responsive side chains in a selective solvent are investigated dissipative particle dynamics simulations. By systematically varying the polymerization degree, copolymer concentration, and side chain length, several morphological phase diagrams were constructed. ADMB assemblies exhibited a rich variety of morphologies, including cylindrical micelles, spherical micelles, nanowires, polyhedral micelles, ellipsoid micelles, and large compound micelles.
View Article and Find Full Text PDF(-)-Epigallocatechin-3-gallate (EGCG) is a polyphenol in green tea with potential lung-protective effects. However, the effects of EGCG on airway inflammation in asthma remain unclear. The aim of this study was to investigate the effect and mechanism of EGCG on asthmatic airway inflammation.
View Article and Find Full Text PDFFive new coumarins, including three phenypropaninized coumarins edgegardnerols A-C (1-3), two bicoumarins edgegardnerols D and E (4 and 5), along with eight known analogues, were isolated and identified from the dried buds of E. gardneri. Their structures were elucidated by comprehensive analysis of their NMR, IR, UV, HR-ESI-MS, and ECD data.
View Article and Find Full Text PDFEthnopharmacological Relevance: Cornus officinalis is a conventional Chinese medicine for tonifying liver and kidney in ancient China. The active ingredients from Cornus officinalis can delay the progression of cerebral aneurysms, alleviate experimental autoimmune encephalomyelitis, and show a good intervention effect on brain diseases. Loganin, the active ingredient of Cornus officinalis, has a neuroprotective effect on cerebral ischemia-reperfusion injury in mice.
View Article and Find Full Text PDFSeven new alkaloids [, (±)-, (±)-, , and ] and one new natural product (), along with eight known analogues, were isolated from the tubers of Schott. Their structures were determined by a comprehensive analysis of spectroscopic data, including HRESIMS, and electronic circular dichroism (ECD). In addition, the results of the bioactivity evaluation showed that compounds (±)-, , and exhibited significantly protective effects against A-induced PC-12 cell injury and ameliorated cell viabilities by decreasing the levels of the reactive oxidative species (ROS) and mitochondrial membrane potential (MMP).
View Article and Find Full Text PDFIn this study, four previously undescribed flavonoids, named epimesatines P (), Q (), R (), and S (), were isolated from the aerial parts of Maxim. Their structures and absolute configurations were confirmed via spectroscopic analyses, quantum chemical electronic circular dichroism (ECD) calculations, Mo(OAc)-induced ECD, and Rh(OCOCF)-induced ECD experiments. Epimesatines Q and R were characterized by the presence of furan rings.
View Article and Find Full Text PDFSelaginella tamariscina extracts (STS), total flavonoids of Selaginella tamariscina (TFST) and the main active component amentoflavone (AMT) have hypoglycaemic-mitigating effects, but their efficacy and mechanism of action in db/db mice are unknown. This study aimed to evaluate the hypoglycaemic effects of Selaginella tamariscina and its extracts in db/db diabetic mice and explore their mechanisms through gut microbiota modulation and metabolomics. Sixty male db/db mice were divided into model (db/db), STS (1.
View Article and Find Full Text PDFSix undescribed compounds (1-6) and twenty-three known analogues (7-29) were isolated from the fresh roots of Rehmannia glutinosa. The structures of the compounds (1-29) were established through the application of spectroscopic analysis. Compounds 3, 4, 6, 8, 13, 18, 21, 22, 25, and 28 exhibited excellent anti-pulmonary fibrosis activity.
View Article and Find Full Text PDFBackground: Alzheimer's disease (AD) is a common chronic neurodegenerative disease in older people, and there is no specific treatment that can stop or reverse its progression. Neobavaisoflavone (NBIF) is a flavonoid that has been shown to have neuroprotective effects, but its role in AD has not been revealed. The present study investigated the role and mechanism of NBIF on Aβ-induced brain injury.
View Article and Find Full Text PDFFive undescribed lignans (1-5), along with sixteen known lignans (6-21), were isolated from the roots of Anthriscus sylvestris using small molecule accurate recognition technology (SMART). The structures of the isolated compounds were determined by comprehensive spectroscopic analyses, and the absolute configurations of compounds 3-5 were elucidated by comparison of their calculated and experimental ECD spectra. Compounds 5, 14-15, 19, and 21 exhibited significantly inhibitory effects against hypoxia-stimulated abnormal proliferation of pulmonary arterial smooth muscle cells (PASMCs).
View Article and Find Full Text PDFEight novel arylnaphthalide lactone lignans, designated as diphylignan A-H (1-8), and a new dibenzyltyrolactone lignan, designated as diphylignan I (9), were isolated from the roots and rhizomes of Diphylleia sinensis, along with two additional novel natural products (11 and 14) and four known metabolites (10, 12, 13, 15). The structural and stereochemical characterization of these compounds was accomplished using NMR spectroscopy and electronic circular dichroism (ECD) analysis. The cytotoxic activities of all isolated compounds were assessed against A-549 and SMMC-7721 cell lines.
View Article and Find Full Text PDFPhytochemical investigation of the -butanol extracts of the herbaceous stems of led to the isolation of eight flavonoids that included three new flavonoid glycosides (-) and five previously reported analogues (-). Their structures have been identified on the basis of various spectral data. Besides, all the flavonoids were tested for their ability to inhibit -glucosidase under the positive control of acarbose, and the results indicated that none of them exhibited significant inhibitory effect on -glucosidase at 100 μM.
View Article and Find Full Text PDFPsoriasis, an immune-mediated inflammatory skin disorder, seriously affects the quality of life of nearly four percent of the world population. L. is the monarch constituent of Chinese ZeQi powder preparation for psoriasis, so it is necessary to illustrate its active ingredients.
View Article and Find Full Text PDFCurr Comput Aided Drug Des
August 2024
Background: Si-Ni-San (SNS) is the formula prescription of Traditional Chinese Medicine (TCM) with anti-depression properties, but its underlying mechanisms remain unclear.
Objective: This study provides novel approaches for the study of Traditional Chinese Medicine (TCM) and offers new opportunities for exploring the pharmacological properties of SNS.
Methods: The ingredients in SNS implicated in the treatment of depression were identified and studied using network pharmacology.
Background: Pulmonary fibrosis (PF) is a progressive and severe respiratory disease for which there is still a lack of satisfactory treatment methods other than lung transplantation. Evening primrose (EP) is widely used in Chinese folk medicinal herbs, especially for the treatment of lung-related diseases. However, the protective effect of evening primrose against PF has yet to be reported.
View Article and Find Full Text PDFThe study investigated the protective effect and mechanism of 2-phenylethyl-beta-glucopyranoside(Phe) from Huaizhong No.1 Rehmannia glutinosa on hypoxic pulmonary hypertension(PH), aiming to provide a theoretical basis for clinical treatment of PAH. Male C57BL/6N mice were randomly divided into normal group, model group, positive drug(bosentan, 100 mg·kg~(-1)) group, and low-and high-dose Phe groups(20 and 40 mg·kg~(-1)).
View Article and Find Full Text PDFUltrathin organic nanofibers (UTONFs) represent an emerging class of nanomaterials as they carry a set of favorable attributes, including ultrahigh specific surface area, lightweight, and mechanical flexibility, over inorganic counterparts, for use in biomedicine and nanotechnology. However, precise synthesis of uniform UTONFs (diameter ≤ 2 nm) with tailored functionalities remained challenging. Herein, we report robust multifunctional UTONFs using hydrophobic interaction-driven self-assembly of amphiphilic alternating peptoids containing hydrophobic photoresponsive azobenzene and hydrophilic hydroxyl moieties periodically arranged along the peptoid backbone.
View Article and Find Full Text PDFBackground: Gleditsiae Sinensis Fructus (GSF) is commonly used in traditional medicine to treat respiratory diseases such as bronchial asthma. However, there is a lack of research on the chemical composition of GSF and the pharmacological substance and mechanism of action for GSF in treating bronchial asthma.
Purpose: The chemical constituents of GSF were analyzed using ultrahigh-performance liquid chromatography-quadrupole-Orbitrap high-resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS).
Gardeniae fructus (GF) is known for its various beneficial effects on cholestatic liver injury (CLI). However, the biological mechanisms through which GF regulates CLI have not been fully elucidated. This study aimed to explore the potential mechanisms of GF against α-naphthylisothiocyanate (ANIT)-induced CLI.
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