Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 87
Filtrar
Más filtros

País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Zhongguo Zhong Yao Za Zhi ; 49(6): 1661-1672, 2024 Mar.
Artículo en Chino | MEDLINE | ID: mdl-38621950

RESUMEN

This study assesses the status of outcome measures in the randomized controlled trial(RCT) involving the kidney-tonif-ying and blood-activating method for treating knee osteoarthritis(KOA), aiming to establish a theoretical foundation for the development of a core set of outcome measures in traditional Chinese medicine(TCM) treatment of KOA. The relevant articles were retrieved from CNKI, Wanfang, VIP, SinoMed, PubMed, EMbase, Cochrane Library, and Web of Science, in addition to ClinicalTrials.gov and the China Clinical Trial Registration Center, with the time interval from inception to August 2023. The RCT of treating KOA with the kidney-tonifying and blood-activating method was included. Two assessors independently conducted literature screening, data collection, and qualitative analysis to compile the outcome measure results. A total of 350 RCTs were included, involving 165 outcome measures with the total frequency of 1 462. These outcome measures were categorized into six domains: symptom and sign measures(23) with the frequency of 718(49.1%), TCM symptom and syndrome measures(3) with the frequency of 53(3.6%), physical examination measures(130) with the frequency of 506(34.6%), quality of life measures(4) with the frequency of 20(1.3%), long-term efficacy measures(2) with the frequency of 6(0.4%), and safety measures(3) with the frequency of 159(10.9%). Additionally, 53 studies used TCM syndrome and symptom scores as indicators of efficacy, employing eight distinct measurement tools. The RCTs involving the kidney-tonifying and blood-activating method for treating KOA had a variety of problems, such as unclear prio-ritization of outcome measures, diversity in measurement tools, absence of standardized assessment criteria for specific measures, and non-standardized usage. These problems affected the research quality and reliability. Hence, it is advisable to draw upon international expertise, improve research design, and merge TCM efficacy characteristics with clinical research to establish a core set of KOA outcome measures aligned with TCM principles.


Asunto(s)
Osteoartritis de la Rodilla , Humanos , Osteoartritis de la Rodilla/tratamiento farmacológico , Calidad de Vida , Reproducibilidad de los Resultados , Ensayos Clínicos Controlados Aleatorios como Asunto , Medicina Tradicional China , Evaluación de Resultado en la Atención de Salud , Riñón , Resultado del Tratamiento
2.
Zhongguo Zhong Yao Za Zhi ; 49(1): 15-25, 2024 Jan.
Artículo en Chino | MEDLINE | ID: mdl-38403334

RESUMEN

Hypertension is known to be a chronic inflammatory state and a key risk factor for heart failure, coronary heart disease, and atherosclerosis. Macrophages in the circulatory system are the main cell group that constitutes the immune system and participates in the inflammatory response. Depending on the local microenvironment, macrophages can be polarized into pro-inflammatory(M1) and anti-inflammatory(M2) phenotypes. When blood pressure is elevated, M1 macrophages can release pro-inflammatory cytokines and chemokines to generate an immune response. However, an excessive immune response can lead to tissue damage, and M2 macrophages release anti-inflammatory cytokines to promote the repair of wounds and tissue damage. It is clear that the dynamic balance between M1 and M2 macrophages resembles the traditional Chinese medicine(TCM) theory of Yin and Yang. That is, when Yin and Yang are imbalanced, the human body will exhibit pathological states, e.g., altered blood pressure rhythms. Studies have confirmed that TCM can produce positive therapeutic effects on hypertension by regulating macrophage polarization. Therefore, this study reviews the studies about the TCM regulation of macrophage polarization and summarized the mechanisms of TCM intervention in hypertension, with the aim of providing evidence for clinical treatment and ideas for scientific research design.


Asunto(s)
Hipertensión , Medicina Tradicional China , Humanos , Inflamación/tratamiento farmacológico , Antiinflamatorios/uso terapéutico , Macrófagos , Citocinas , Hipertensión/tratamiento farmacológico
3.
Int J Biol Macromol ; 261(Pt 1): 129674, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38280710

RESUMEN

The pro-tumorigenic M2-type tumor-associated macrophages (TAMs) in the immunosuppressive tumor microenvironment (TME) promote the progression, angiogenesis, and metastasis of breast cancer. The repolarization of TAMs from an M2-type toward an M1-type holds great potential for the inhibition of breast cancer. Here, we report that Lycium barbarum polysaccharides (LBPs) can significantly reconstruct the TME by modulating the function of TAMs. Specifically, we separated four distinct molecular weight segments of LBPs and compared their repolarization effects on TAMs in TME. The results showed that LBP segments within 50-100 kDa molecular weight range exhibited the prime effect on the macrophage repolarization, augmented phagocytosis effect of the repolarized macrophages on breast cancer cells, and regression of breast tumor in a tumor-bearing mouse model. In addition, RNA-sequencing confirms that this segment of LBP displays an enhanced anti-breast cancer effect through innate immune responses. This study highlights the therapeutic potential of LBP segments within the 50-100 kDa molecular weight range for macrophage repolarization, paving ways to offer new strategies for the treatment of breast cancer.


Asunto(s)
Medicamentos Herbarios Chinos , Lycium , Neoplasias , Ratones , Animales , Macrófagos Asociados a Tumores , Peso Molecular , Medicamentos Herbarios Chinos/farmacología , Macrófagos , Microambiente Tumoral , Neoplasias/patología
4.
Nat Prod Res ; 38(1): 91-96, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-35921492

RESUMEN

Two new anthraquinone derivatives sapranquinones A and B (1 and 2) together with two known biogenetically related anthraquinone derivatives (3 and 4) were isolated from the stems of Saprosma crassipes H. S. Lo. The structures of these compounds were elucidated using comprehensive spectroscopic methods. Compounds 1-4 were evaluated for their antibacterial activities and compounds 1 and 3 had a broad spectrum antibacterial activity against Staphylococcus albus, Escherichia coli, Bacillus cereus, Micrococcus tetragenus, and Micrococcus luteus with MIC values ranging from 1.25 to 5 µg/mL.


Asunto(s)
Antraquinonas , Rubiaceae , Antraquinonas/química , Antibacterianos/química , Extractos Vegetales/farmacología , Extractos Vegetales/química , Análisis Espectral , Rubiaceae/química , Escherichia coli , Pruebas de Sensibilidad Microbiana
5.
Zhongguo Zhong Yao Za Zhi ; 48(19): 5113-5121, 2023 Oct.
Artículo en Chino | MEDLINE | ID: mdl-38114101

RESUMEN

Obesity has been identified as a chronic low-grade systemic inflammation and a key risk factor for diseases such as diabetes, hypertension, and malignancies, and has become an urgent global health burden. Adipose tissue macrophages play a significant role in adipose immune homeostasis and inflammatory responses. Under different conditions, they can be polarized into pro-inflammatory M1 phenotype or anti-inflammatory M2 phenotype. In obese individuals, there is abnormal polarization of macrophages in adipose tissue, leading to an imbalance in the M1/M2 phenotype dynamic equilibrium and the development of pathological inflammation. Therefore, restoring the balance of M1/M2 macrophage polarization is an important potential target for the treatment of chronic inflammation in obesity. Studies have shown that traditional Chinese medicine(TCM) can positively modulate macrophage polarization and produce beneficial effects on obesity. Based on existing evidence, this paper systematically reviewed the potential mechanisms of TCM in improving chronic inflammation in obesity from the perspective of macrophage polarization, in order to provide evidence for the clinical diagnosis and treatment of chronic inflammation in obesity with TCM and offer new insights for related research design and the development of new TCM.


Asunto(s)
Medicina Tradicional China , Obesidad , Humanos , Animales , Ratones , Obesidad/tratamiento farmacológico , Tejido Adiposo/patología , Inflamación/tratamiento farmacológico , Macrófagos , Ratones Endogámicos C57BL
6.
Biomacromolecules ; 24(12): 5940-5950, 2023 12 11.
Artículo en Inglés | MEDLINE | ID: mdl-38033171

RESUMEN

Polymer micelles/vesicles made of a red-light-responsive Ru(II)-containing block copolymer (PolyRu) are elaborated as a model system for anticancer phototherapy. PolyRu is composed of PEG and a hydrophobic polypeptoid bearing thioether side chains, 40% of which are coordinated with [Ru(2,2':6',2″-terpyridine)(2,2'-biquinoline)](PF6)2 via the Ru-S bond, resulting in a 67 wt % Ru complex loading capacity. Red-light illumination induces the photocleavage of the Ru-S bond and produces [Ru(2,2':6',2″-terpyridine)(2,2'-biquinoline)(H2O)](PF6)2. Meanwhile, ROS are generated under the photosensitization of the Ru complex and oxidize hydrophobic thioether to hydrophilic sulfoxide, causing the disruption of micelles/vesicles. During the disruption, ROS generation and Ru complex release are synergistically enhanced. PolyRu micelles/vesicles are taken up by cancer cells while they exhibit very low cytotoxicity in the dark. In contrast, they show much higher cytotoxicity under red-light irradiation. PolyRu micelles/vesicles are promising nanoassembly prototypes that protect metallodrugs in the dark but exhibit light-activated anticancer effects with spatiotemporal control for photoactivated chemotherapy and photodynamic therapy.


Asunto(s)
Complejos de Coordinación , Rutenio , Especies Reactivas de Oxígeno , Rutenio/farmacología , Rutenio/química , Liberación de Fármacos , Micelas , Fototerapia/métodos , Polímeros/química , Sulfuros , Complejos de Coordinación/farmacología , Complejos de Coordinación/química
7.
bioRxiv ; 2023 Nov 13.
Artículo en Inglés | MEDLINE | ID: mdl-38014294

RESUMEN

Increasing evidence shows that many human-targeted drugs alter the gut microbiome, leading to implications for host health. However, much less is known about the mechanisms by which drugs target the microbiome and how drugs affect microbial function. Here we combined quantitative microbiome profiling, long-read metagenomics, stable isotope probing and single-cell chemical imaging to investigate the impact of two widely prescribed nervous system-targeted drugs on the gut microbiome. Ex vivo supplementation of physiologically relevant concentrations of entacapone or loxapine succinate to faecal samples significantly impacted the abundance of up to one third of the microbial species present. Importantly, we demonstrate that the impact of these drugs on microbial metabolism is much more pronounced than their impact on abundances, with low concentrations of drugs reducing the activity, but not the abundance of key microbiome members like Bacteroides, Ruminococcus or Clostridium species. We further demonstrate that entacapone impacts the microbiome due to its ability to complex and deplete available iron, and that microbial growth can be rescued by replenishing levels of microbiota-accessible iron. Remarkably, entacapone-induced iron starvation selected for iron-scavenging organisms carrying antimicrobial resistance and virulence genes. Collectively, our study unveils the impact of two under-investigated drugs on whole microbiomes and identifies metal sequestration as a mechanism of drug-induced microbiome disturbance.

8.
Biomed Environ Sci ; 36(10): 930-939, 2023 Oct 20.
Artículo en Inglés | MEDLINE | ID: mdl-37932061

RESUMEN

Objective: Clinical characteristics and outcome in COVID-19 with brucellosis patients has not been well demonstrated, we tried to analyze clinical outcome in local and literature COVID-19 cases with brucellosis before and after recovery. Methods: We retrospectively collected hospitalization data of comorbid patients and prospectively followed up after discharge in Heilongjiang Infectious Disease Hospital from January 15, 2020 to April 29, 2022. Demographics, epidemiological, clinical symptoms, radiological and laboratory data, treatment medicines and outcomes, and follow up were analyzed, and findings of a systematic review were demonstrated. Results: A total of four COVID-19 with brucellosis patients were included. One patient had active brucellosis before covid and 3 patients had nonactive brucellosis before brucellosis. The median age was 54.5 years, and all were males (100.0%). Two cases (50.0%) were moderate, and one was mild and asymptomatic, respectively. Three cases (75.0%) had at least one comorbidity (brucellosis excluded). All 4 patients were found in COVID-19 nucleic acid screening. Case C and D had only headache and fever on admission, respectively. Four cases were treated with Traditional Chinese medicine, western medicines for three cases, no adverse reaction occurred during hospitalization. All patients were cured and discharged. Moreover, one case (25.0%) had still active brucellosis without re-positive COVID-19, and other three cases (75.0%) have no symptoms of discomfort except one case fell fatigue and anxious during the follow-up period after recovery. Conducting the literature review, two similar cases have been reported in two case reports, and were both recovered, whereas, no data of follow up after recovery. Conclusion: These cases indicate that COVID-19 patients with brucellosis had favorable outcome before and after recovery. More clinical studies should be conducted to confirm our findings.


Asunto(s)
Brucelosis , COVID-19 , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , SARS-CoV-2 , Resultado del Tratamiento , Informes de Casos como Asunto
9.
Environ Sci Pollut Res Int ; 30(42): 95648-95659, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37556062

RESUMEN

Ephedra sinica is one of the most famous Chinese medicinal plants. The insufficient supply of wild resources has led to the increased use of cultivated products. However, the related medicinal quality differs significantly. Although the influence of external environment on the quality of E. sinica has been studied, the impact of endophytic microbes on it remains vague. This study characterized differential metabolites and microbial community compositions in wild and cultivated E. sinica by combining metabolomics with microbiomics, and explored the effect of endophytes on the formation of differential metabolites further. The results showed that the difference in quality between wild and cultivated E. sinica was mainly in the productions of alkaloids, flavonoids, and terpenoids. The associated endophytes had special compositional characteristics. For instance, the distribution and abundance of dominant endophytes varied between wild and cultivated E. sinica. Several endophytes had significant or highly significant correlations with the formations of ephedrine, pseudoephedrine, D-cathinone, methcathinone, coumarin, kaempferol, rhamnetin, or phenylacetic acid. This study will deepen our understanding of the plant-endophyte interactions and provide a strategy for the quality control of E. sinica products.


Asunto(s)
Medicamentos Herbarios Chinos , Ephedra sinica , Ephedra sinica/metabolismo , Efedrina/metabolismo , Metabolómica , Endófitos/metabolismo
10.
ACS Nano ; 17(14): 13861-13871, 2023 07 25.
Artículo en Inglés | MEDLINE | ID: mdl-37439510

RESUMEN

High-output modern agriculture based on synthetic chemicals (biocides, pesticides, and fertilizers) feeds the growing global population. To completely abandon the use of pesticides and fertilizers will undoubtedly cause a severe food crisis worldwide, and sustainable alternative solutions are urgently demanded to stop biocides and fertilizers overuse. Herein, a versatile and green strategy is proposed for seed protection and long-term storage of grains using a cellulose-based photothermal coating (PDA NPs@Cell-N+) that consists of photothermal polydopamine nanoparticles (PDA NPs) and a positive-charged cellulose derivative (Cell-N+) to eradicate seed-borne bacteria and fungi simply under infrared irradiation. In vitro and in vivo assays and the seedling-stage phenotypes of mung bean (Vigna radiata) suggest that pathogenic microbes, including the tough Aspergillus flavus (inhibition ratio >99%), can be efficiently eliminated by photothermal therapy. Thus, the seed-borne diseases of mung beans can finally be prevented. Owing to excellent solubility and biocompatibility, the PDA NPs@Cell-N+ coating can be washed off and recycled without food safety concerns. PDA NPs@Cell-N+ can be a nature-based solution for seed protection and long-term grain storage.


Asunto(s)
Nanopartículas , Plaguicidas , Celulosa , Fertilizantes , Fototerapia , Semillas
11.
Zhongguo Zhong Yao Za Zhi ; 48(14): 3949-3964, 2023 Jul.
Artículo en Chino | MEDLINE | ID: mdl-37475086

RESUMEN

This study aimed to evaluate the efficacy of Qi-supplementing and Yin-nourishing Chinese patent medicine in the treatment of early diabetic nephropathy(DN) by network Meta-analysis to explore the Chinese patent medicine with optimal efficacy and provide references for preventing renal deterioration and delaying the progression of early DN. Eight databases, including CNKI, Wanfang, VIP, SinoMed, PubMed, EMbase, Cochrane Library, and Web of Science, were searched for clinical randomized controlled trial(RCT) of Qi-supplementing and Yin-nourishing Chinese patent medicines in the treatment of early DN. After the literature mee-ting the inclusion criteria was screened, the quality of the literature was evaluated using the Cochrane risk-of-bias tool, and network Meta-analysis was performed using the BUGSnet package in R 4.2.1. Seventy-two research articles with a sample size of 6 344 cases were included, involving eight Chinese patent medicines and seven outcome indicators. The results of the network Meta-analysis showed that(1)in terms of improving urinary albumin excretion rate(UAER), Chinese patent medicines combined with conventional treatment were superior to conventional treatment, and Qiyao Xiaoke Capsules + conventional treatment was optimal.(2)In terms of reducing serum crea-tinine(Scr), Bailing Capsules + conventional treatment had superior efficacy.(3)In terms of reducing 24-hour urine total protein(24hUTP), Shenyan Kangfu Tablets + conventional treatment and Jinshuibao Capsules + conventional treatment had equivalent efficacy, and Shenyan Kangfu Tablets + conventional treatment was superior.(4)In terms of improving fasting blood glucose(FBG), Shenyan Kangfu Tablets + conventional treatment had superior efficacy.(5)In terms of improving total cholesterol(TC), Qiyao Xiaoke Capsules +conventional treatment had superior efficacy.(6)In terms of reducing triglyceride(TG), Bailing Capsules + conventional treatment had superior efficacy.(7)In terms of safety, the occurrence of adverse reactions was reported in seven interventions, but due to the large clinical heterogeneity, the quantitative analysis could not be performed. Overall, Qi-supplementing and Yin-nourishing Chinese patent medicines combined with conventional treatment were superior to conventional treatment alone in the treatment of early DN. The results showed that Qi-supplementing and Yin-nourishing Chinese patent medicines combined with conventional treatment had good clinical efficacy, and they could significantly reduce renal function indicators such as UAER, Scr, and 24hUTP, and reduce blood sugar and blood lipid, which can provide evidence-based support for the treatment of early DN. However, due to the differences in the quantity and quality of the included research articles, large-sample, multi-center, high-quality studies are still needed for further verification.


Asunto(s)
Diabetes Mellitus , Nefropatías Diabéticas , Medicamentos Herbarios Chinos , Humanos , Nefropatías Diabéticas/tratamiento farmacológico , Medicamentos sin Prescripción/uso terapéutico , Qi , Metaanálisis en Red , Cápsulas , Medicamentos Herbarios Chinos/uso terapéutico , Comprimidos , Diabetes Mellitus/tratamiento farmacológico
12.
Food Chem ; 425: 136359, 2023 Nov 01.
Artículo en Inglés | MEDLINE | ID: mdl-37244236

RESUMEN

The effect of quinoa protein hydrolysate (QPH) beverage on the physicochemical and sensory characteristics of coffee was investigated. The scores of sensory properties of coffee-quinoa beverage revealed that the unpleasant sensory characteristics, such as extreme bitterness and astringency, were covered up by the addition of quinoa beverage; while smooth mouthfeel and sweetness were enhanced. On the other hand, the introduction of coffee into quinoa beverage significantly retarded oxidation characterized by TBARS. When treated with chlorogenic acid (CGA), significant structural changes and improved functionalities of QPH were detected. CGA induced the unfolding structure of QPH and decreased surface hydrophobicity. The interaction between QPH and CGA was shown by the changes of sulfydryl content and the pattern of SDS-PAGE. Besides, neutral protease treatment increased the equilibrium oil-water interfacial pressure value of QPH, revealing improved stability of emulsions. Synergistic antioxidant effect between QPH and CGA was revealed by increased ABTS+· scavenging rate.


Asunto(s)
Chenopodium quinoa , Café , Café/química , Ácido Clorogénico/análisis , Bebidas , Antioxidantes/análisis
13.
Front Pharmacol ; 14: 1125600, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37007003

RESUMEN

Entomoceuticals define a subset of pharmaceuticals derived from insects. The therapeutic effect of insect-derived drugs has been empirically validated by the direct use of various folk medicines originating from three sources in particular: the glandular secretions of insects (e.g., silk, honey, venom), the body parts of the insect or the whole used live or by various processing (e.g., cooked, toasted, ground), and active ingredients extracted from insects or insect-microbe symbiosis. Insects have been widely exploited in traditional Chinese medicine (TCM) relative to other ethnomedicines, especially in the prospect of insect species for medicinal uses. It is noticeable that most of these entomoceuticals are also exploited as health food for improving immune function. In addition, some edible insects are rich in animal protein and have high nutritional value, which are used in the food field, such as insect wine, health supplements and so on. In this review, we focused on 12 insect species that have been widely used in traditional Chinese herbal formulae but have remained less investigated for their biological properties in previous studies. We also combined the entomoceutical knowledge with recent advances in insect omics. This review specifies the underexplored medicinal insects from ethnomedicine and shows their specific medicinal and nutritional roles in traditional medicine.

14.
Photobiomodul Photomed Laser Surg ; 41(2): 80-87, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-36780574

RESUMEN

Background: Blue light exhibits the ability to deactivate catalase present in pathogens, significantly improving the antimicrobial performance of compounds such as hydrogen peroxide (H2O2). However, H2O2 is not used within clinical settings due to its short half-life, limiting its potential applications. In this study, we explore the usage of Food and Drug Administration-approved and clinically used silver sulfadiazine (SSD) as a potential alternative to H2O2, acting as a reactive oxygen species (ROS)-producing agent capable of synergizing with blue light exposure. Materials and methods: For in vitro studies, bacterial strains were exposed to a continuous wave 405 nm light-emitting diode (LED) followed by treatment with SSD for varying incubation times. For in vivo studies, bacteria-infected murine abrasion wounds were treated with daily treatments of 405 nm LED light and 1% SSD cream for up to 4 days. The surviving bacterial population was quantified through agar plating and colony-forming unit quantification. Results: Through a checkerboard assay, blue light and SSD demonstrated synergistic interactions. Against both gram-negative and gram-positive pathogens, blue light significantly improved the antimicrobial response of SSD within both phosphate-buffered saline and nutrient-rich conditions. Examination into the mechanisms reveals that the neutralization of catalase significantly improves the ROS-producing capabilities of SSD at the exterior of the bacterial cell, producing greater amounts of toxic ROS capable of exerting antimicrobial activity against the pathogen. Additional experiments reveal that the incorporation of light improves the antimicrobial performance of SSD within methicillin-resistant Staphylococcus aureus (MRSA)- and Pseudomonas aeruginosa strain 1 (PAO-1)-infected murine abrasion wounds. Conclusions: As an established, clinically used antibiotic, SSD can act as a suitable alternative to H2O2 in synergizing with catalase-deactivating blue light, allowing for better translation of this technology to more clinical settings and further implementation of this treatment to more complex animal models.


Asunto(s)
Antiinfecciosos , Luz , Sulfadiazina de Plata , Animales , Ratones , Antiinfecciosos/farmacología , Catalasa , Peróxido de Hidrógeno/farmacología , Staphylococcus aureus Resistente a Meticilina/efectos de los fármacos , Especies Reactivas de Oxígeno , Sulfadiazina de Plata/farmacología
15.
Curr Drug Metab ; 23(14): 1143-1155, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36733241

RESUMEN

BACKGROUND: Filifolium sibiricum flavonoids dropping pill (FSFp), a unique Chinese Filifolii sibirici herba extract preparation, has the potential as an alternative therapy against S. aureus infection (SA) and antiinfection. However, its chemical composition and in vivo metabolism characteristics remain unknown, which limits its clinical application. METHODS: Here, we aimed to understand the in vitro and in vivo material basis of FSFp. Ultra-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS) was used to identify chemicals in FSFp as well as its phase I and phase II reaction metabolites in plasma, urine and feces. RESULTS: A total of 38 chemicals were characterized in FSFp, including 22 flavonoids, 10 organic acids, 3 chromones, 1 aromatic ketone, 1 coumarin, and 1 ligan. After analysis of the drugged bio-samples, a total of 21 compounds were found in urine, and 16 of them were found in feces, but only one was found in plasma. In addition, 56 FSFp-related metabolites were characterized, of which 56 were in urine, 4 in feces, and 8 in plasma. CONCLUSION: This is the first comprehensive research of FSFp on chemical constituents and metabolic profiles. It was expected that this study would offer reliable support for further investigation of FSFp.


Asunto(s)
Medicamentos Herbarios Chinos , Humanos , Medicamentos Herbarios Chinos/química , Cromatografía Líquida de Alta Presión/métodos , Flavonoides/química , Staphylococcus aureus/metabolismo , Espectrometría de Masas en Tándem/métodos
16.
J Ethnopharmacol ; 303: 115990, 2023 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-36509262

RESUMEN

ETHNOPHARMACOLOGY RELEVANCE: As a Yi medicine for eliminating wind to relieve pain, Tinospora sagittata var. yunnanensis (S. Y. Hu) H. S. Lo (TSY) is widely used to treat sore throat, stomach pain, bone and muscle injuries, and tumors; however, the material basis and mechanism of action remain unclear. AIM OF THE STUDY: This study aims to investigate the potential active compounds of TSY and related pharmacological mechanisms against gastric cancer using a multitarget strategy. MATERIALS AND METHODS: The main chemical components of TSY were collected through a literature review and database searches. The components were further screened for ADMET properties, and their targets were predicted using network pharmacology (admetSAR) and substructure-drug-target network-based inference (SDTNBI) approaches in silico. The pharmacological mechanism of action of TSY extract for pain relief, sedation, and anti-gastric cancer activities were identified via in vivo and in vitro biochemical analyses. RESULTS: Here, 28 chemical components were identified, 7 active compounds were selected, and 75 targets of TSY extract were predicted. A compound-target-disease network topological approach revealed that the predicted targets are highly related to the digestive system and nervous system. Network pharmacology results suggested that the anti-gastric cancer activity of TSY was highly correlated with its analgesic and sedative targets and MAPK. In vivo experiments confirmed that TSY extract not only reduced the number of voluntary activities in the mouse model but also exhibited a synergistic effect on sodium pentobarbital-induced sleep, reduced the number of mice exhibiting writhing responses to acetic acid, and increased the hot plate pain threshold of mice. Thus, TSY extract exhibits good analgesic and sedative effects. The TSY extract inhibited HGC-27 cell proliferation and induced apoptosis by regulating apoptotic proteins (BAX, BCL-2 and BCL-XL) in vitro. CONCLUSIONS: TSY exhibits combined analgesic, sedative, and anti-gastric cancer activities.


Asunto(s)
Neoplasias , Tinospora , Animales , Ratones , Tinospora/química , Hipnóticos y Sedantes/uso terapéutico , Analgésicos/efectos adversos , Dolor/tratamiento farmacológico , Ácido Acético/uso terapéutico , Extractos Vegetales/farmacología , Neoplasias/tratamiento farmacológico
17.
Artículo en Chino | WPRIM | ID: wpr-981527

RESUMEN

This study aimed to evaluate the efficacy of Qi-supplementing and Yin-nourishing Chinese patent medicine in the treatment of early diabetic nephropathy(DN) by network Meta-analysis to explore the Chinese patent medicine with optimal efficacy and provide references for preventing renal deterioration and delaying the progression of early DN. Eight databases, including CNKI, Wanfang, VIP, SinoMed, PubMed, EMbase, Cochrane Library, and Web of Science, were searched for clinical randomized controlled trial(RCT) of Qi-supplementing and Yin-nourishing Chinese patent medicines in the treatment of early DN. After the literature mee-ting the inclusion criteria was screened, the quality of the literature was evaluated using the Cochrane risk-of-bias tool, and network Meta-analysis was performed using the BUGSnet package in R 4.2.1. Seventy-two research articles with a sample size of 6 344 cases were included, involving eight Chinese patent medicines and seven outcome indicators. The results of the network Meta-analysis showed that(1)in terms of improving urinary albumin excretion rate(UAER), Chinese patent medicines combined with conventional treatment were superior to conventional treatment, and Qiyao Xiaoke Capsules + conventional treatment was optimal.(2)In terms of reducing serum crea-tinine(Scr), Bailing Capsules + conventional treatment had superior efficacy.(3)In terms of reducing 24-hour urine total protein(24hUTP), Shenyan Kangfu Tablets + conventional treatment and Jinshuibao Capsules + conventional treatment had equivalent efficacy, and Shenyan Kangfu Tablets + conventional treatment was superior.(4)In terms of improving fasting blood glucose(FBG), Shenyan Kangfu Tablets + conventional treatment had superior efficacy.(5)In terms of improving total cholesterol(TC), Qiyao Xiaoke Capsules +conventional treatment had superior efficacy.(6)In terms of reducing triglyceride(TG), Bailing Capsules + conventional treatment had superior efficacy.(7)In terms of safety, the occurrence of adverse reactions was reported in seven interventions, but due to the large clinical heterogeneity, the quantitative analysis could not be performed. Overall, Qi-supplementing and Yin-nourishing Chinese patent medicines combined with conventional treatment were superior to conventional treatment alone in the treatment of early DN. The results showed that Qi-supplementing and Yin-nourishing Chinese patent medicines combined with conventional treatment had good clinical efficacy, and they could significantly reduce renal function indicators such as UAER, Scr, and 24hUTP, and reduce blood sugar and blood lipid, which can provide evidence-based support for the treatment of early DN. However, due to the differences in the quantity and quality of the included research articles, large-sample, multi-center, high-quality studies are still needed for further verification.


Asunto(s)
Humanos , Nefropatías Diabéticas/tratamiento farmacológico , Medicamentos sin Prescripción/uso terapéutico , Qi , Metaanálisis en Red , Cápsulas , Medicamentos Herbarios Chinos/uso terapéutico , Comprimidos , Diabetes Mellitus/tratamiento farmacológico
18.
Proc Natl Acad Sci U S A ; 119(41): e2203480119, 2022 10 11.
Artículo en Inglés | MEDLINE | ID: mdl-36197994

RESUMEN

Fatty acids are an important source of energy and a key component of phospholipids in membranes and organelles. Saturated fatty acids (SFAs) are converted into unsaturated fatty acids (UFAs) by stearoyl Co-A desaturase (SCD), an enzyme active in cancer. Here, we studied how the dynamics between SFAs and UFAs regulated by SCD impacts ovarian cancer cell survival and tumor progression. SCD depletion or inhibition caused lower levels of UFAs vs. SFAs and altered fatty acyl chain plasticity, as demonstrated by lipidomics and stimulated Raman scattering (SRS) microscopy. Further, increased levels of SFAs resulting from SCD knockdown triggered endoplasmic reticulum (ER) stress response with brisk activation of IRE1α/XBP1 and PERK/eIF2α/ATF4 axes. Disorganized ER membrane was visualized by electron microscopy and SRS imaging in ovarian cancer cells in which SCD was knocked down. The induction of long-term mild ER stress or short-time severe ER stress by the increased levels of SFAs and loss of UFAs led to cell death. However, ER stress and apoptosis could be readily rescued by supplementation with UFAs and reequilibration of SFA/UFA levels. The effects of SCD knockdown or inhibition observed in vitro translated into suppression of intraperitoneal tumor growth in ovarian cancer xenograft models. Furthermore, a combined intervention using an SCD inhibitor and an SFA-enriched diet initiated ER stress in tumors growing in vivo and potently blocked their dissemination. In all, our data support SCD as a key regulator of the cancer cell fate under metabolic stress and point to treatment strategies targeting the lipid balance.


Asunto(s)
Supervivencia Celular , Endorribonucleasas , Ácidos Grasos Insaturados , Neoplasias Ováricas , Progresión de la Enfermedad , Ácido Graso Desaturasas , Ácidos Grasos/farmacología , Ácidos Grasos Insaturados/farmacología , Femenino , Humanos , Fosfolípidos , Proteínas Serina-Treonina Quinasas , Estearoil-CoA Desaturasa/metabolismo
19.
Angew Chem Int Ed Engl ; 61(40): e202209293, 2022 10 04.
Artículo en Inglés | MEDLINE | ID: mdl-35912895

RESUMEN

Herein, cobaloxime is used for the first time as a catalyst for the synthesis of phosphorylated heteroaromatics, which is an intriguing and versatile functional motif. With visible-light irradiation, cobaloxime not only oxidizes phosphine oxides to form phosphorus radicals (P-radicals) for a subsequent reaction with radical acceptor isocyanides or heteroaromatics, but also combines the radical intermediate with ß-H elimination, thereby producing phosphorylated heteroaromatics with only H2 or CH4 as byproduct. Phosphine oxides with dialkyl, alkylaryl, and diaryl substituents could be directly transformed into phosphorylated phenanthridines, benzothiazoles, isoquinolines, and common heteroaromatics. This catalytic system features extremely mild conditions, broad substrate scope and good to excellent yields. Scale-up reaction and sunlight reaction show the great application potential in the green synthesis of important organophosphorus chemicals.


Asunto(s)
Cianuros , Óxidos , Benzotiazoles , Isoquinolinas , Compuestos Organometálicos , Fenantridinas , Fosfinas , Fósforo
20.
Plant Sci ; 321: 111317, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35696917

RESUMEN

Oil palm (Elaeis guineensis Jacq.) is one of the most important oil crops in the world, and compared to all oil crops, it has the highest productive efficiency. In the present study, a MADS-box transcription factor of the AGAMOUS class, named EgAGL9, was identified by expression profile analysis in the different developmental stages of oil palm mesocarp. Real-time quantitative PCR results confirmed that the expression of EgAGL9 increased rapidly during the last stages of oil palm mesocarp development. Then, three downstream genes, including EgSAD (Stearoyl-ACP desaturase), EgTSA (Tryptophan synthase) and EgSDH (Succinate dehydrogenase), were screened by ChIP-Seq and data analysis. EMSA analysis verified that EgAGL9 interacted with the promoter regions of EgSAD, EgTSA and EgSDH. Moreover, the expression levels of EgSAD, EgTSA and EgSDH were downregulated in EgAGL9-overexpressing protoplasts and calli of oil palm. Compared to WT, the total lipid content and ratio of unsaturated fatty acids in transgenic calli (including oleic acid, linoleic acid and linolenic acid) were significantly decreased. Together, these results revealed that these three EgAGL9-regulated genes are involved in regulatory pathways in the oil palm mesocarp. Compared with previous studies, the present study provides a new research strategy for understanding of the molecular regulatory pathways of lipid metabolism in mesocarp of oil palm. The obtained results will bring a new perspective for a comprehensive understanding of the regulation of the metabolic accumulation in the oil palm mesocarp.


Asunto(s)
Arecaceae , Factores de Transcripción , Arecaceae/metabolismo , Regulación de la Expresión Génica de las Plantas , Metabolismo de los Lípidos/genética , Aceite de Palma/metabolismo , Factores de Transcripción/genética , Factores de Transcripción/metabolismo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA