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1.
Artigo em Inglês | MEDLINE | ID: mdl-38581326

RESUMO

Background: Chronic heart failure (CHF) is a complex cardiovascular disorder resulting from prolonged heart disease, leading to structural and functional damage, weakened myocardial contraction, and inadequate cardiac output for daily metabolism. The purpose of study is accurate evaluation and early identification of cardiac function and ventricular remodeling through effective biochemical indicators. Methods: This study, conducted from April 2020 to March 2021, included 100 CHF patients meeting the Chinese Guidelines for the Diagnosis and Treatment of Heart Failure 2020 from First People's Hospital of Linping District, ascertaining a confirmed diagnosis based on these established guidelines. The objective of detecting these biomarkers is not for early diagnosis, given that the subjects are already diagnosed according to the guidelines. Instead, our focus is on using these biomarkers to assess disease severity, prognosis, or treatment response in the context of diagnosed CHF patients. Classification comprised 42 ischemic and 58 non-ischemic CHF cases, with NYHA cardiac function grading (I, II, III-IV) and left ventricular ejection fraction (LVEF) categorization (≤ 40%, >40%). A control group of 100 healthy volunteers was selected for comparison. SuPAR, APN, and IgE expressions were analyzed among different groups and LVEF categories. Diagnostic efficacy was assessed through ROC curves, and correlations with cardiac function and LVEF were explored. Results: SuPAR, APN, and IgE expressions were significantly higher in CHF patients compared to the control group. Increasing cardiac function grades in CHF patients correlated with a gradual elevation in suPAR, APN, and IgE expressions. Comparing LVEF groups, CHF patients with LVEF ≤ 40% exhibited significantly higher suPAR, APN, and IgE expressions. Combined detection of suPAR, APN, and IgE demonstrated superior diagnostic accuracy (AUC of 0.899) compared to individual markers. Positive correlations were observed between suPAR, APN, IgE, and cardiac function grades, while LVEF showed a significant negative correlation with these biomarkers. Conclusions: SuPAR, APN, and IgE expressions are elevated in CHF patients, and their combined detection serves as a highly efficient auxiliary diagnostic method. The findings offer valuable insights into the diagnosis and treatment of CHF patients.

2.
Artigo em Inglês | MEDLINE | ID: mdl-38551427

RESUMO

Background: Improving treatment outcomes in chronic heart failure (CHF) patients post percutaneous coronary intervention (PCI) is of significant importance. CHF is a prevalent and severe chronic condition that negatively impacts patients' quality of life and increases the risks of hospitalization and mortality. Therefore, evaluating effective treatment strategies is crucial in improving the prognosis of CHF patients after PCI. Objective: The main objective of this study was to evaluate the clinical efficacy of combining spironolactone with dbcAMP-Ca in CHF patients following PCI. The study aimed to assess the impact of this combination therapy on both clinical outcomes and left ventricular function. Methodology: The study design involved the random assignment of 110 CHF subjects post-PCI into two groups: a combination group receiving spironolactone with dbcAMP-Ca and a spironolactone-only group. The subjects' clinical efficacy, left ventricular function, plasma brain natriuretic peptide (BNP), serum uric acid (UA), serum high-sensitivity C-reactive protein (hs-CRP) levels, autonomic nerve function, and postoperative adverse reactions were assessed. Results: The results demonstrated that the combination group, receiving spironolactone with dbcAMP-Ca, showed superior clinical efficacy, improved left ventricular function, and enhanced autonomic nerve function compared to the spironolactone-only group. Additionally, the combination group exhibited a lower incidence of adverse reactions and reduced levels of plasma BNP, UA, and hs-CRP. These findings indicate that spironolactone combined with dbcAMP-Ca has a favorable clinical effect in CHF patients post-PCI, effectively improving left ventricular and autonomic nerve function while maintaining high safety. Conclusions: The combination therapy of spironolactone and dbcAMP-Ca holds potential as an effective treatment strategy for CHF patients following PCI. This combination therapy demonstrated superior clinical efficacy, improved left ventricular function, and enhanced autonomic nerve function, with reduced adverse reactions and biomarker levels. Spironolactone combined with dbcAMP-Ca can be considered as a beneficial treatment strategy for CHF patients post-PCI. The demonstrated clinical efficacy, improvement in left ventricular function, and enhanced autonomic nerve function support the wider application of this combination therapy in the management of CHF patients in clinical settings.

3.
J Pharm Biomed Anal ; 242: 116040, 2024 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-38387129

RESUMO

The chemical and biologically active characterization of jujube samples (fruits, cores, and leaves) were carried out by the integrated nontargeted metabolomics and bioassay. Firstly, collision cross-section values of active compounds in jujubes were determined by ultrahigh-performance liquid chromatography coupled with ion mobility quadrupole time-of-flight mass spectrometry. Then, a multidimensional statistical analysis that contained principal component analysis, partial least squares-discriminant analysis and hierarchical clustering analysis was employed to effectively cluster different tissues and types of jujubes, making identification more scientific. Furthermore, angiotensin-converting enzyme (ACE) and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) were used to evaluate the quality of jujubes from a double activity dimension. The analytical results obtained by using ACE and DPPH to evaluate the quality of jujube were different from multivariate statistics, providing a reference for the application of jujube. Therefore, integrating chemical and biological perspectives to evaluate the quality of jujube provided a more comprehensive evaluation and effective reference for clinical needs.


Assuntos
Antioxidantes , Compostos de Bifenilo , Ziziphus , Antioxidantes/farmacologia , Antioxidantes/análise , Ziziphus/química , Extratos Vegetais/química , Cromatografia Líquida de Alta Pressão , Cromatografia Líquida , Frutas/química
4.
Artigo em Inglês | MEDLINE | ID: mdl-38294741

RESUMO

Objective: This study aimed to investigate the predictive value of the Duke Anesthesia Resistance Scale (DARS) for postoperative delirium in elderly patients following hip fracture surgery. Methods: A retrospective study was conducted on 90 elderly patients with hip fractures who underwent surgical treatment from January 2018 to January 2021. Patients were categorized into delirium (n=22) and non-delirium (n=68) groups based on postoperative delirium occurrence. Qualitative and quantitative variables were compared between the groups to identify primary risk factors for postoperative delirium. The ability of DARS to predict postoperative delirium was assessed using the receiver operating characteristic (ROC) curve. Results: Significant differences in age, number of underlying diseases, surgical blood loss, and DARS scores were observed between the delirium and non-delirium groups (P < .05). Multivariate logistic regression analysis indicated that DARS scores (OR=2.321), age (OR=2.476), number of underlying diseases (OR=2.209), surgical blood loss (OR=2.267), and postoperative pain (OR=2.287) were significant predictors of postoperative delirium (P < .05). Pearson correlation analysis revealed a negative correlation between DARS scores and age, number of underlying diseases, and surgical blood loss (P < .05). The ROC curve analysis demonstrated that the area under the curve (AUC) for DARS in predicting postoperative delirium was 0.8255 (95% CI: 0.726~0.924). At a DARS cutoff score of 38, the specificity was 80.28%, and the sensitivity was 81.45%. Conclusion: The DARS score is a valuable tool for predicting postoperative delirium in elderly patients with hip fractures, with an optimal threshold of 38 points. The use of DARS in predicting postoperative delirium could significantly benefit healthcare providers and improve patient care.

5.
Phytochemistry ; 215: 113858, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37709157

RESUMO

Structural characteristics-guided investigation of Ailanthus altissima (Mill.) Swingle resulted in the isolation and identification of seven undescribed potential Michael reaction acceptors (1-7). Ailanlactone A (1) possesses an unusual 1,7-epoxy-11,12-seco quassinoid core. Ailanterpene B (6) was a rare guaianolide-type sesquiterpene with a 5/6/6/6-fused skeleton. Their structures were determined through extensive analysis of physiochemical and spectroscopic data, quantum chemical calculations, and single crystal X-ray crystallographic technology using Cu Kα radiation. The cytotoxic activities of isolates on HepG2 and Hep3B cells were evaluated in vitro. Encouragingly, ailanaltiolide K (4) showed significant cytotoxicity against Hep3B cells with IC50 values of 1.41 ± 0.21 µM, whose covalent binding mode was uncovered in silico.


Assuntos
Ailanthus , Quassinas , Ailanthus/química , Extratos Vegetais/química , Folhas de Planta , Quassinas/química
6.
Nature ; 621(7977): 138-145, 2023 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-37587337

RESUMO

Maintaining body temperature is calorically expensive for endothermic animals1. Mammals eat more in the cold to compensate for energy expenditure2, but the neural mechanism underlying this coupling is not well understood. Through behavioural and metabolic analyses, we found that mice dynamically switch between energy-conservation and food-seeking states in the cold, the latter of which are primarily driven by energy expenditure rather than the sensation of cold. To identify the neural mechanisms underlying cold-induced food seeking, we used whole-brain c-Fos mapping and found that the xiphoid (Xi), a small nucleus in the midline thalamus, was selectively activated by prolonged cold associated with elevated energy expenditure but not with acute cold exposure. In vivo calcium imaging showed that Xi activity correlates with food-seeking episodes under cold conditions. Using activity-dependent viral strategies, we found that optogenetic and chemogenetic stimulation of cold-activated Xi neurons selectively recapitulated food seeking under cold conditions whereas their inhibition suppressed it. Mechanistically, Xi encodes a context-dependent valence switch that promotes food-seeking behaviours under cold but not warm conditions. Furthermore, these behaviours are mediated by a Xi-to-nucleus accumbens projection. Our results establish Xi as a key region in the control of cold-induced feeding, which is an important mechanism in the maintenance of energy homeostasis in endothermic animals.


Assuntos
Temperatura Corporal , Temperatura Baixa , Comportamento Alimentar , Tálamo , Animais , Camundongos , Temperatura Corporal/fisiologia , Mapeamento Encefálico , Cálcio/metabolismo , Comportamento Alimentar/fisiologia , Metabolismo Energético/fisiologia , Tálamo/anatomia & histologia , Tálamo/citologia , Tálamo/fisiologia , Optogenética , Neurônios/metabolismo , Núcleo Accumbens/citologia , Núcleo Accumbens/fisiologia , Homeostase/fisiologia , Termogênese/fisiologia
7.
Phytomedicine ; 119: 154986, 2023 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-37506572

RESUMO

BACKGROUND: Head and neck squamous cell carcinoma (HNSCC) is one of the most life-threatening diseases which also causes economic burden worldwide. To overcome the limitations of traditional therapies, investigation into alternative adjuvant treatments is crucial. PURPOSE: Curcumin, a turmeric-derived compound, demonstrates significant therapeutic potential in diverse diseases, including cancer. Furthermore, research focuses on curcumin analogues and novel drug delivery systems, offering approaches for improved efficacy. This review aims to provide a comprehensive overview of curcumin's current findings, emphasizing its mechanisms of anti-HNSCC effects and potential for clinical application. METHOD: An electronic search of Web of Science, MEDLINE, and Embase was conducted to identify literature about the application of curcumin or analogues in HNSCC. Titles and abstracts were screened to identify potentially eligible studies. Full-text articles will be obtained and independently evaluated by two authors to make the decision of inclusion in the review. RESULTS: Curcumin's clinical application is hindered by poor bioavailability, prompting the exploration of methods to enhance it, such as curcumin analogues and novel drug delivery systems. Curcumin could exhibit anti-cancer effects by targeting cancer cells and modulating the tumor microenvironment in HNSCC. Mechanisms of action include cell cycle arrest, apoptosis promotion, reactive oxygen species induction, endoplasmic reticulum stress, inhibition of epithelial-mesenchymal transition, attenuation of extracellular matrix degradation, and modulation of tumor metabolism in HNSCC cells. Curcumin also targets various components of the tumor microenvironment, including cancer-associated fibroblasts, innate and adaptive immunity, and lymphovascular niches. Furthermore, curcumin enhances the anti-cancer effects of other drugs as adjunctive therapy. Two clinical trials report its potential clinical applications in treating HNSCC. CONCLUSION: Curcumin has demonstrated therapeutic potential in HNSCC through in vitro and in vivo studies. Its effectiveness is attributed to its ability to modulate cancer cells and interact with the intricate tumor microenvironment. The development of curcumin analogues and novel drug delivery systems has shown promise in improving its bioavailability, thereby expanding its clinical applications. Further research and exploration in this area hold great potential for harnessing the full therapeutic benefits of curcumin in HNSCC treatment.


Assuntos
Antineoplásicos , Curcumina , Neoplasias de Cabeça e Pescoço , Humanos , Antineoplásicos/uso terapêutico , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Carcinoma de Células Escamosas de Cabeça e Pescoço/tratamento farmacológico , Sistemas de Liberação de Medicamentos , Microambiente Tumoral
8.
Molecules ; 28(3)2023 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-36771105

RESUMO

The monkeypox outbreak has become a global public health emergency. The lack of valid and safe medicine is a crucial obstacle hindering the extermination of orthopoxvirus infections. The identification of potential inhibitors from natural products, including Traditional Chinese Medicine (TCM), by molecular modeling could expand the arsenal of antiviral chemotherapeutic agents. Monkeypox DNA topoisomerase I (TOP1) is a highly conserved viral DNA repair enzyme with a small size and low homology to human proteins. The protein model of viral DNA TOP1 was obtained by homology modeling. The reliability of the TOP1 model was validated by analyzing its Ramachandran plot and by determining the compatibility of the 3D model with its sequence using the Verify 3D and PROCHECK services. In order to identify potential inhibitors of TOP1, an integrated library of 4103 natural products was screened via Glide docking. Surface Plasmon Resonance (SPR) was further implemented to assay the complex binding affinity. Molecular dynamics simulations (100 ns) were combined with molecular mechanics Poisson-Boltzmann surface area (MM/PBSA) computations to reveal the binding mechanisms of the complex. As a result, three natural compounds were highlighted as potential inhibitors via docking-based virtual screening. Rosmarinic acid, myricitrin, quercitrin, and ofloxacin can bind TOP1 with KD values of 2.16 µM, 3.54 µM, 4.77 µM, and 5.46 µM, respectively, indicating a good inhibitory effect against MPXV. The MM/PBSA calculations revealed that rosmarinic acid had the lowest binding free energy at -16.18 kcal/mol. Myricitrin had a binding free energy of -13.87 kcal/mol, quercitrin had a binding free energy of -9.40 kcal/mol, and ofloxacin had a binding free energy of -9.64 kcal/mol. The outputs (RMSD/RMSF/Rg/SASA) also indicated that the systems were well-behaved towards the complex. The selected compounds formed several key hydrogen bonds with TOP1 residues (TYR274, LYS167, GLY132, LYS133, etc.) via the binding mode analysis. TYR274 was predicted to be a pivotal residue for compound interactions in the binding pocket of TOP1. The results of the enrichment analyses illustrated the potential pharmacological networks of rosmarinic acid. The molecular modeling approach may be acceptable for the identification and design of novel poxvirus inhibitors; however, further studies are warranted to evaluate their therapeutic potential.


Assuntos
Antivirais , Produtos Biológicos , Monkeypox virus , DNA Topoisomerases Tipo I , Simulação de Acoplamento Molecular , Simulação de Dinâmica Molecular , Monkeypox virus/efeitos dos fármacos , Ofloxacino , Reprodutibilidade dos Testes , Antivirais/química , Ácido Rosmarínico
9.
Complement Ther Clin Pract ; 50: 101675, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36436262

RESUMO

PURPOSE: Exercise training is an efficient non-pharmacological intervention for patients with heart failure (HF). This study aimed to objectively evaluate the effects of Baduanjin exercise on the quality of life (QOL) and exercise capacity in patients with HF. METHODS: PubMed, Embase, the Cochrane Library, Chinese National Knowledge Infrastructure (CNKI), and Wanfang data were searched from the date of their inception until 30 September 2022. All randomised controlled trials (RCTs) evaluating the effects of Baduanjin exercise on QOL and exercise capacity in patients with HF were selected. The primary outcomes were QOL, assessed using the Minnesota Living with Heart Failure Questionnaire (MLHFQ), and exercise capacity, evaluated using the 6-min walking test (6-MWT). A meta-analysis was performed by comparing the MLHFQ domain scores. Review Manager 5.3 and Stata 14.0, were used for the data analysis. RESULTS: Baduanjin exercise showed a favourable improvement of the overall QOL (mean difference = -8.25; 95% confidence interval: -13.62 to -2.89; P = 0.003) and exercise capacity (mean difference = 118.49; 95% confidence interval: 52.57 to 184.41; P = 0.0004). Meta-analyses of the MLHFQ domain score indicated that Baduanjin exercise significantly improved the patients' physical (mean difference = -2.83; 95% confidence interval: -3.76, -1.90; P < 0.00001), emotional (mean difference = -2.52; 95% confidence interval: -3.67 to -1.37; P < 0.0001), and general QOL (mean difference = -2.61; 95% confidence interval: -5.17 to -0.06; P = 0.05), based on the decrease in the MLHFQ domain score. Marked statistical heterogeneity (I2> 70%) was observed for all the QOL and exercise capacity outcomes. CONCLUSIONS: Baduanjin exercise is a safe, feasible, and acceptable intervention that can improve the QOL and exercise capacity in patients with HF. However, more RCTs with rigorous research designs are needed to assist in the rehabilitation of such patients.


Assuntos
Tolerância ao Exercício , Insuficiência Cardíaca , Humanos , Terapia por Exercício , Insuficiência Cardíaca/psicologia , Insuficiência Cardíaca/reabilitação , Qualidade de Vida , Exercício Físico
10.
Planta Med ; 89(3): 295-307, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35921848

RESUMO

Ten novel meroterpenoids, dryoptins/11″-epi-dryoptins A~E (1: ~10: ) with an unprecedented skeleton consisting of dimeric or trimeric acylphloroglucinols and dehydrotheonelline, two undescribed acylphloroglucinol-nerolidol meroterpenoids (11: ~12: ), and ten known acylphloroglucinol derivatives (13: ~22: ), were isolated from D. crassirhizoma. The novel structures including absolute configurations were established by comprehensive spectroscopic analyses and quantum chemical electronic circular dichroism (ECD) calculations. A biosynthetic pathway of 1: ~10: was assumed. The trimeric acylphloroglucinol meroterpenoids 7: /8: showed significant antifungal activity against standard Candida albicans with a MIC50 value of 1.61 µg/mL [fluconazole (FLC): 3.41 µg/mL], and when combined with FLC, the principal components 20: and 21: exhibited strong antifungal activities against FLC-resistant C. albicans with MIC50 values of 8.39 and 7.16 µg/mL (FLC: > 100 µg/mL), respectively. Moreover, compounds 2, 5: /6, 18, 19: , and 21: exhibited inhibitory effects against several pathogenic fungi and bacteria, with MIC50 values of 6.25 ~ 50 µg/mL.


Assuntos
Antifúngicos , Dryopteris , Antifúngicos/farmacologia , Dryopteris/química , Fluconazol/farmacologia , Candida albicans , Dicroísmo Circular
11.
Artigo em Chinês | WPRIM | ID: wpr-972280

RESUMO

This article has systematically sorted out and verified the name, origin, producing area, quality evaluation, harvesting and processing of Pruni Semen by consulting ancient materia medica, medical books, prescription books and modern literature, in order to provide a basis for the development of famous classical formulas containing Pruni Semen. The results showed that Pruni Semen, as a medicinal material, has been widely used in medical literature of past dynasties since it was collected in Shennong Bencaojing, and also included under the names such as Yuhe, Yuzi and Yuli, and aliases such as Jueli, Queli and Chexiali. The primordial plants mentioned in the past dynasties involve about 12 species of Rosaceae, but with Prunus humilis, P. japonica and P. glandulosa as mainstream varieties used in the past dynasties, while the 2020 edition of Chinese Pharmacopoeia stipulates that the basal plants are P. humilis, P. japonica and P. pedunculata. Most of the ancient records for the origin of Pruni Semen are found everywhere in high mountains, valleys and hills, modern literature records that its origin varies according to its base, for example, P. humilis and P. japonica are mainly produced in Hebei, eastern Inner Mongolia, Liaoning, Shandong and other regions of China, and P. pedunculata is mainly produced in Inner Mongolia. Modern literature summarizes its quality as faint yellow, full and fulfilling, neat and not broken, and non-oiling, and the small Pruni Semen is better than the big Pruni Semen. The ancient processing methods of Pruni Semen mainly include blanching and peeling, blanching and peeling followed by frying, and blanching and peeling followed by pounding, with the common feature of blanching and peeling. The successive editions of Chinese Pharmacopoeia stipulate that it should be pounded when used. Based on the results of the herbal textual research and the writing time of Bianzhenglu, and combined with the market survey of Pruni Semen, it is suggested that P. humilis or P. japonica should be used as the origin of Pruni Semen in Sanpiantang, and it is harvested when the fruits are ripe, the kernels are collected by removing the stones, and processed by blanching, peeling and pounding consulting the decoction method in the current edition of Chinese Pharmacopoeia.

12.
Artigo em Chinês | WPRIM | ID: wpr-970587

RESUMO

There are 500 species of Viola(Violaceae) worldwide, among which 111 species are widely distributed in China and have a long medicinal history and wide varieties. According to the authors' statistics, a total of 410 compounds have been isolated and identified from plants of this genus, including flavonoids, terpenoids, phenylpropanoids, organic acids, nitrogenous compounds, sterols, saccharides and their derivatives, volatile oils and cyclotides. The medicinal materials from these plants boast anti-microbial, anti-viral, anti-oxidant and anti-tumor activities. This study systematically reviewed the chemical constituents and pharmacological activities of Viola plants to provide a basis for further research and clinical application.


Assuntos
Viola/química , Extratos Vegetais/farmacologia , Flavonoides , Terpenos/farmacologia , China
13.
Chinese Herbal Medicines ; (4): 298-309, 2023.
Artigo em Inglês | WPRIM | ID: wpr-982495

RESUMO

OBJECTIVE@#Diterpenoids with a wide variety of biological activities from Anoectochilus roxburghii, a precious medicinal plant, are important active components. However, due to the lack of genetic information on the metabolic process of diterpenoids in A. roxburghii, the genes involved in the molecular regulation mechanism of diterpenoid metabolism are still unclear. This study revealed the complex metabolic genes for diterpenoids biosynthesis in different organs of A. roxburghii by combining analysis of transcriptomics and metabolomics.@*METHODS@#The differences in diterpenoid accumulation in roots, stems and leaves of A. roxburghii were analyzed by metabonomic analysis, and its metabolic gene information was obtained by transcriptome sequencing. Then, the molecular mechanism of differential diterpenoid accumulation in different organs of A. roxburghii was analyzed from the perspective of gene expression patterns.@*RESULTS@#A total of 296 terpenoid metabolites were identified in the five terpenoid metabolic pathways in A. roxburghii. There were 38, 34, and 18 diterpenoids with different contents between roots and leaves, between leaves and stems, and between roots and stems, respectively. Twenty-nine metabolic enzyme genes with 883 unigenes in the diterpenoid synthesis process were identified, and the DXS and FDPS in the terpenoid backbone biosynthesis stage and CPA, GA20ox, GA3ox, GA2ox, and MAS in the diterpenoid biosynthesis stage were predicted to be the key metabolic enzymes for the accumulation of diterpenoids. In addition, 14 key transcription factor coding genes were predicted to be involved in the regulation of the diterpenoid biosynthesis. The expression of genes such as GA2ox, MAS, CPA, GA20ox and GA3ox might be activated by some of the 14 transcription factors. The transcription factor NTF-Y and PRE6 were predicted to be the most important transcription factors.@*CONCLUSION@#This study determined 29 metabolic enzyme genes and predicted 14 transcription factors involved in the molecular regulation mechanism of diterpenoid metabolism in A. roxburghii, which provided a reference for the further study of the molecular regulation mechanism of the accumulation of diterpenoids in different organs of A. roxburghii.

14.
Fitoterapia ; 163: 105327, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36208855

RESUMO

Seven triterpenoids (1-7), two prenylated coumarins (8 and 9), and one diphenylpropane (10), including five previously undescribed compounds (1-3, 8, and 10), were obtained from the stem and root barks of Daphne giraldii. The structures and absolute configurations of the new triterpenoids were established by NMR, HRESIMS, ECD calculations, and single-crystal X-ray diffraction analysis. All identified compounds were tested for cytotoxicities (human tumour cell line Hep3B) and inhibitory effects on AChE in vitro. Notably, prenylated coumarins (8 and 9) exhibited moderate cytotoxic activities and 3-hydroxy-substituted triterpenoids (2 and 4) showed mild inhibitory effects on AChE. Furthermore, compounds 2 and 4 have also been subjected to molecular docking studies to investigate the inhibitory mechanism.


Assuntos
Antineoplásicos Fitogênicos , Daphne , Triterpenos , Humanos , Daphne/química , Acetilcolinesterase , Simulação de Acoplamento Molecular , Antineoplásicos Fitogênicos/farmacologia , Estrutura Molecular , Cumarínicos/farmacologia , Cumarínicos/química
15.
Zhongguo Zhong Yao Za Zhi ; 47(13): 3511-3518, 2022 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-35850803

RESUMO

The moistening process of Rehmanniae Radix was characterized quantitatively by moisture phase, texture properties, and component content based on water absorption kinetics and expansion kinetics. Non-linear fitting of water absorption kinetics and expansion kinetics in the moistening process of Rehmanniae Radix was carried out. Low-field nuclear magnetic resonance and imaging(LF-NMR/MRI) technology was used to investigate the phase state and distribution changes of water during the moistening process. The Texture Analyzer was used for the determination of texture properties. The correlations between water absorption rate, expansion rate, water phase state, hardness, and compression cycle work of Rehmanniae Radix at different moistening time were analyzed. The results showed that the water absorption kinetics and expansion kinetics of Rehmanniae Radix were in accordance with the first-order kinetics. Moreover, the water absorption rate and expansion rate increased with the increase in temperature but decreased with the increase in the size of the medicinal materials.In the moistening process, the moisture was transferred from the outside to the inside, and the proportion of the moisture phase changed significantly.Within 16 hours, free water increased from 0.825% to 97.7%,while bound water decreased from 99.2% to 2.33%.Within 28 hours, the texture properties, such as hardness and compression cycle work, decreased gradually with the prolongation in moistening time.At 32 hours, water was evenly distributed throughout the whole medicinal material, and the texture properties also tended to be stable.Pearson correlation bivariate analysis showed that moistening time, water absorption rate, expansion rate, the relative content of free water and bound water, hardness, and compression cycle work were significantly correlated, suggesting that water absorption kinetics and expansion kinetics, LF-NMR/MRI,and Texture Analyzer could directly and quantitatively characterize the moistening process.This study is expected to provide a scientific basis for clarifying the scientific connotation of the moistening process of Rehmanniae Radix.


Assuntos
Medicamentos de Ervas Chinesas , Rehmannia , Extratos Vegetais , Água
16.
J Cardiovasc Pharmacol ; 80(1): 48-55, 2022 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-35170494

RESUMO

ABSTRACT: Angioplasty often fails due to the abnormal proliferation of vascular smooth muscle cells (VSMCs). Success rates of angioplasty may increase following the administration of an agent that effectively ameliorates aberrant vascular remodeling. Icariside II (ICS-II) is a natural flavonol glycoside extract from the Chinese herbal medicine Epimedii that possesses several medicinal qualities that are beneficial in humans. Nevertheless, the role of ICS-II in addressing aberrant vascular remodeling have yet to be clarified. The current investigation studies the molecular effects of ICS-Ⅱ on balloon-inflicted neointimal hyperplasia in rats in vivo and on platelet-derived growth factor-induced vascular proliferation in primary rat aortic smooth muscle cells (VSMCs) in vitro. ICS-II was found to be as effective as rapamycin, the positive control used in this study. ICS-II inhibited neointimal formation in injured rat carotid arteries and notably reduced the expression of Wnt7b. ICS-Ⅱ significantly counteracted platelet-derived growth factor-induced VSMCs proliferation. Cell cycle analysis showed that ICS-II triggered cell cycle arrest during the G1/S transition. Western blot analysis further indicated that this cell cycle arrest was likely through Wnt7b suppression that led to CCND1 inhibition. In conclusion, our findings demonstrate that ICS-II possesses significant antiproliferative qualities that counteracts aberrant vascular neointimal hyperplasia. This phenomenon most likely occurs due to the suppression of the Wnt7b/CCND1 axis.


Assuntos
Lesões das Artérias Carótidas , Remodelação Vascular , Animais , Lesões das Artérias Carótidas/tratamento farmacológico , Lesões das Artérias Carótidas/metabolismo , Movimento Celular , Proliferação de Células , Flavonoides , Hiperplasia/metabolismo , Músculo Liso Vascular/metabolismo , Miócitos de Músculo Liso/metabolismo , Neointima/metabolismo , Fator de Crescimento Derivado de Plaquetas/metabolismo , Fator de Crescimento Derivado de Plaquetas/farmacologia , Ratos , Ratos Sprague-Dawley
17.
Artigo em Chinês | WPRIM | ID: wpr-940323

RESUMO

By referring to the relevant ancient herbal literature, medical records and prescription books, the textual research of Violae Herba has been conducted to verify the name, origin, producing area, quality evaluation and processing method changes. The results showed that the name of Zihua Diding originated from its flower color and plant morphological characteristics. The primitive plant of Violae Herba is Viola genus of Violaceae, V. yedoensis, as stipulated in the 2020 edition of Chinese Pharmacopoeia, has been the mainstream in past dynasties of China. Violae Herba is mainly wild, and it is widely distributed throughout the country. Since modern times, the quality of Violae Herba is better with integrity, green color and yellow root. There are few records on the harvesting and processing methods of Violae Herba in ancient times, most of which are directly used after drying. It is suggested that the collection and processing methods of Violae Herba in the famous classical formulas can be implemented in accordance with the provisions of the 2020 edition of Chinese Pharmacopoeia.

18.
Artigo em Chinês | WPRIM | ID: wpr-939535

RESUMO

Acupuncture regulating gastrointestinal motility has the characteristics of bidirectional benign regulation, acupoint specificity and immediacy. And its regulation is mainly achieved through the "neuro-endocrine-immune" network system. Acupuncture at Neiguan (PC 6) and Hegu (LI 4) to inhibit intestinal peristalsis may have good application value in colonoscopy.


Assuntos
Pontos de Acupuntura , Terapia por Acupuntura , Colonoscopia , Motilidade Gastrointestinal , Peristaltismo
19.
Zhongguo Zhong Yao Za Zhi ; 46(20): 5436-5442, 2021 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-34738447

RESUMO

Liangmianzhen(Zanthoxyli Radix) has long been used as medicine. The current medicinal parts are different from those in the ancient. As recorded in the Chinese Pharmacopeia, the medicinal part is root. However, in ancient works, the medicinal parts include root, stem, leaf, and fruit. In an attempt to find the historical basis that stem is a reasonable medicinal part, the herbalogical study was carried out on this medicinal based on the formal names, synonyms, original plant, medicinal parts, habitat of the medicinal plant, producing area, processing and preparation methods, efficacy, and indications recorded in ancient Chinese materia medica and local gazetteers. The results showed that Liangmianzhen was firstly recorded as a medicinal in Shennong's Classic of Materia Medica with the formal name of "Manjiao". "Manjiao" was adopted from the Han Dynasty to the Qing Dynasty when it was changed to "Rudijinniu", the name originating from the folk in the south of the Five Ridges. Now, the formal name is "Liangmianzhen", which was firstly recorded in Wuxuan County Gazetteer in 1914 and then as a synonym in the Updated Records of Picking Herbs in the South of the Five Ridges. According to the formal names, synonyms, and the descriptions of the original plant, the medicinal plants of Liang-mianzhen have the characteristics of shrub-like young seedlings, vine adult seedlings, corymbiform thyrsus, stems with thorns, amphitropous golden-yellow roots with horn-like branches, and thorns on both sides of the leaves. Thus, "Manjiao", "Rudijinniu", and "Liangmianzhen" were from the same species of Zanthoxylum nitidum(Rutaceae), which was also verified based on the growth environment, habitat, processing and preparation methods, efficacy, and indications. In ancient times, the stem and root were the main medicinal parts and leaves and fruits were also used. However, in the Chinese Pharmacopeia, root is recorded as the only medicinal part, which is obviously inconsistent with the records in the ancient classics. In light of the limited medicinal resources for Liang-mianzhen, other medicinal parts of Z. nitidum is recommended. This study clarified the medicinal parts of Z. nitidum in history. It is recommended that the stem be added to the medicinal parts of Z. nitidum in the next edition of Chinese Pharmacopeia.


Assuntos
Medicamentos de Ervas Chinesas , Materia Medica , Plantas Medicinais , China , Frutas , Medicina Tradicional Chinesa
20.
Am J Physiol Gastrointest Liver Physiol ; 320(4): G450-G463, 2021 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-33439102

RESUMO

Nonalcoholic steatohepatitis (NASH) could progress to hepatic fibrosis in the absence of effective control. The purpose of our experiment was to investigate the protective effect of drinking water with a high concentration of hydrogen, namely, hydrogen-rich water (HRW), on mice with nonalcoholic fatty liver disease to elucidate the mechanism underlying the therapeutic action of molecular hydrogen. The choline-supplemented, l-amino acid-defined (CSAA) or the choline-deficient, l-amino acid-defined (CDAA) diet for 20 wk was used to induce NASH and fibrosis in the mice model and simultaneously treated with the high-concentration 7-ppm HRW for different periods (4 wk, 8 wk, and 20 wk). Primary hepatocytes were stimulated by palmitate to mimic liver lipid metabolism during fatty liver formation. Primary hepatocytes were cultured in a closed vessel filled with 21% O2 + 5% CO2 + 3.8% H2 and N2 as the base gas to verify the response of primary hepatocytes in a high concentration of hydrogen gas in vitro. Mice in the CSAA + HRW group had lower serum levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and milder histological damage. The inflammatory cytokines were expressed at lower levels in the HRW group than in the CSAA group. Importantly, HRW reversed hepatocyte fatty acid oxidation and lipogenesis as well as hepatic inflammation and fibrosis in preexisting hepatic fibrosis specimens. Molecular hydrogen inhibits the lipopolysaccharide-induced production of inflammation cytokines through increasing heme oxygenase-1 (HO-1) expression. Furthermore, HRW improved hepatic steatosis in the CSAA + HRW group. Sirtuin 1 (Sirt1) induction by molecular hydrogen via the HO-1/adenosine monophosphate activated protein kinase (AMPK)/peroxisome proliferator-activated receptor α (PPARα)/peroxisome proliferator-activated receptor γ (PPAR-γ) pathway suppresses palmitate-mediated abnormal fat metabolism. Orally administered HRW suppressed steatosis induced by CSAA and attenuated fibrosis induced by CDAA, possibly by reducing oxidative stress and the inflammation response.NEW & NOTEWORTHY The mRNA expression of inflammatory cytokines in the HRW group was lower than in the CSAA group. HRW reversed hepatocyte apoptosis as well as hepatic inflammation and fibrosis in NASH specimens. Molecular hydrogen inhibits LPS-induced inflammation via an HO-1/interleukin 10 (IL-10)-independent pathway. HRW improved hepatic steatosis in the CSAA + HRW group. Sirt1 induction by molecular hydrogen via the HO-1/AMPK/PPARα/PPARγ pathway suppresses palmitate-mediated abnormal fat metabolism.


Assuntos
Heme Oxigenase-1/metabolismo , Hepatócitos/efeitos dos fármacos , Hidrogênio/farmacologia , Interleucina-10/metabolismo , Cirrose Hepática Experimental/prevenção & controle , Fígado/efeitos dos fármacos , Proteínas de Membrana/metabolismo , Hepatopatia Gordurosa não Alcoólica/prevenção & controle , Sirtuína 1/metabolismo , Água/farmacologia , Animais , Hepatócitos/enzimologia , Hepatócitos/patologia , Hidrogênio/química , Células de Kupffer/efeitos dos fármacos , Células de Kupffer/metabolismo , Lipólise/efeitos dos fármacos , Fígado/enzimologia , Fígado/patologia , Cirrose Hepática Experimental/enzimologia , Cirrose Hepática Experimental/patologia , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Hepatopatia Gordurosa não Alcoólica/enzimologia , Hepatopatia Gordurosa não Alcoólica/patologia , Células RAW 264.7 , Transdução de Sinais
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