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1.
Medicine (Baltimore) ; 103(8): e37277, 2024 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-38394541

RESUMO

BACKGROUND: Huangqi (Radix Astragali) is a natural medicine with a wide range of uses. The research related to Huangqi is getting hotter and the number of publications is gradually increasing. This study aims to explore the current status and emerging trends of Huangqi-related research. METHOD: Huangqi-related literature was systemically obtained from the Web of Science database. The CiteSpace, VOSviewer, and, R package "Bibliometrix" tools were used to analyze the number of publications, countries, research institutions, journals, authors, keywords, references, and trends. RESULTS: A total of 2255 papers were retrieved for analysis. These papers were written by 11,247 authors from 1927 institutions in 71 countries, published in 570 journals, and cited 73,534 references from 11,553 journals. From 1999 to 2022, the number of publications gradually increased. China was the country with the highest number of publications. The most prolific institution was Shanghai University of Chinese Medicine. Evidence-Based Complementary and Alternative Medicine was the journal publishing the most Huangqi-related literature. Dr Karl Wah Keung Tsim was the authors with the most output publications. The Review, entitle "Review of the Botanical Characteristics, Phytochemistry, and Pharmacology of Astragalus membranaceous (Huangqi)," was the reference being cited most frequently. The major keywords were apoptosis, oxidative stress, and inflammation. Gut microbiota and epithelial-mesenchymal transitions were new research hotspots in recent years. CONCLUSION: This study used quantitative and visual analysis of Huangqi to provide insights into the research priorities, frontier research hotspots, and future research trends in this field.


Assuntos
Astragalus propinquus , Medicamentos de Ervas Chinesas , Plantas Medicinais , Humanos , China , Medicamentos de Ervas Chinesas/uso terapêutico , Bibliometria
2.
CNS Neurosci Ther ; 30(3): e14457, 2024 03.
Artigo em Inglês | MEDLINE | ID: mdl-37718934

RESUMO

AIMS: Electroacupuncture (EA) at the Lianquan (CV23) could alleviate swallowing dysfunction. However, current knowledge of its neural modulation focused on the brain, with little evidence from the periphery. Transient receptor potential channel vanilloid subfamily 1 (TRPV1) is an ion channel predominantly expressed in sensory neurons, and acupuncture can trigger calcium ion (Ca2+ ) wave propagation through active TRPV1 to deliver signals. The present study aimed to investigate whether TRPV1 mediated the signal of EA to the primary sensory cortex (S1) during regulation of swallowing function. METHODS: Blood perfusion was evaluated by laser speckle contrast imaging (LSCI), and neuronal activity was evaluated by fiber calcium recording and c-Fos staining. The expression of TRPV1 was detected by RNA-seq analysis, immunofluorescence, and ELISA. In addition, the swallowing function was assessed by in vivo EMG recording and water consumption test. RESULTS: EA treatment potentiated blood perfusion and neuronal activity in the S1, and this potentiation was absent after injecting lidocaine near CV23. TRPV1 near CV23 was upregulated by EA-CV23. The blood perfusion at CV23 was decreased in the TRPV1 hypofunction mice, while the blood perfusion and the neuronal activity of the S1 showed no obvious change. These findings were also present in post-stroke dysphagia (PSD) mice. CONCLUSION: The TRPV1 at CV23 after EA treatment might play a key role in mediating local blood perfusion but was not involved in transferring EA signals to the central nervous system (CNS). These findings collectively suggested that TRPV1 may be one of the important regulators involved in the mechanism of EA treatment for improving swallowing function in PSD.


Assuntos
Terapia por Acupuntura , Eletroacupuntura , Acidente Vascular Cerebral , Camundongos , Animais , Eletroacupuntura/métodos , Deglutição/fisiologia , Cálcio/metabolismo , Sistema Nervoso Central/metabolismo , Canais de Cátion TRPV/metabolismo , Pontos de Acupuntura
3.
Acupunct Med ; 42(2): 76-86, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38160204

RESUMO

OBJECTIVE: To investigate the effects of electroacupuncture (EA) at ST36 on intestinal microflora and plasma metabolites in a mouse model of type 2 diabetes mellitus (T2DM), to provide a theoretical basis and guidance for the clinical treatment of T2DM by traditional Chinese medicine (TCM). METHODS: Sixteen T2DM db/db mice were randomly divided into treatment (T, n = 8) and model (M, n = 8) groups, and a further eight normal db/m+ mice reared under the same conditions served as a non-diabetic control group (C, n = 8). The general conditions of mice were observed weekly. After obtaining blood and stool samples, the mice were euthanized. Fasting blood glucose (FBG) was measured using a glucometer and fasting insulin (FINS) was measured in plasma by enzyme-linked immunosorbent assay (ELISA). Liver and colon tissues were embedded in paraffin and subjected to hematoxylin-eosin (HE) staining to observe pathological changes in these tissues. In addition, 16S ribosomal RNA (rRNA) sequencing was performed to analyze changes in the intestinal flora and metabolomics was employed to assess changes in metabolites in the blood. RESULTS: EA significantly reduced FBG and FINS levels and alleviated pathological damage to the liver and colon. Furthermore, EA increased intestinal community richness and diversity by decreasing the relative abundance of Clostridium and incresasing the relative abundance of Lactobacillus. EA also reduced D-fructose levels in T2DM mice according to plasma metabolomics. CONCLUSION: EA has a positive regulatory effect on the intestinal flora and can regulate blood glucose and improve insulin resistance in T2DM model mice.


Assuntos
Diabetes Mellitus Tipo 2 , Eletroacupuntura , Microbioma Gastrointestinal , Camundongos , Animais , Insulina/metabolismo , Diabetes Mellitus Tipo 2/terapia , Diabetes Mellitus Tipo 2/metabolismo , Glicemia/metabolismo , Modelos Animais de Doenças
4.
Mol Neurobiol ; 2023 Nov 13.
Artigo em Inglês | MEDLINE | ID: mdl-37957422

RESUMO

As one of the commonly used therapies for pain-related diseases in clinical practice, electroacupuncture (EA) has been proven to be effective. In chronic pain, neurons in the anterior cingulate cortex (ACC) have been reported to be hyperactive, while the mechanism by which cannabinoid type 1 receptors (CB1Rs) in the ACC are involved in EA-mediated analgesic mechanisms remains to be elucidated. In this study, we investigated the potential central mechanism of EA analgesia. A combination of techniques was used to detect the expression and function of CB1R, including quantitative real-time PCR (q-PCR), western blot (WB), immunofluorescence (IF), enzyme-linked immunosorbent assay (ELISA), and in vivo multichannel optical fibre recording, and neuronal activity was examined by in vivo two-photon imaging and in vivo electrophysiological recording. We found that the hyperactivity of pyramidal neurons in the ACC during chronic inflammatory pain is associated with impairment of the endocannabinoid system. EA at the Zusanli acupoint (ST36) can reduce the hyperactivity of pyramidal neurons and exert analgesic effects by increasing the endocannabinoid ligands anandamide (AEA), 2-arachidonoylglycerol (2-AG) and CB1R. More importantly, CB1R in the ACC is one of the necessary conditions for the EA-mediated analgesia effect, which may be related to the negative regulation of the N-methyl-D-aspartate receptor (NMDAR) by the activation of CB1R downregulating NR1 subunits of NMDAR (NR1) via histidine triad nucleotide-binding protein 1 (HINT1). Our study suggested that the endocannabinoid system in the ACC plays an important role in acupuncture analgesia and provides evidence for a central mechanism of EA-mediated analgesia.

5.
Microbiol Spectr ; 11(3): e0308922, 2023 06 15.
Artigo em Inglês | MEDLINE | ID: mdl-37140456

RESUMO

Drug resistance against bacteria and fungi has become common in recent years, and it is urgent to discover novel antimicrobial peptides to manage this problem. Many antimicrobial peptides from insects have been reported to have antifungal activity and are candidate molecules in the treatment of human diseases. In the present study, we characterized an antifungal peptide named blapstin that was isolated from the Chinese medicinal beetle Blaps rhynchopetera used in folk medicine. The complete coding sequence was cloned from the cDNA library prepared from the midgut of B. rhynchopetera. It is a 41-amino-acid diapause-specific peptide (DSP)-like peptide stabilized by three disulfide bridges and shows antifungal activity against Candida albicans and Trichophyton rubrum with MICs of 7 µM and 5.3 µM, respectively. The C. albicans and T. rubrum treated with blapstin showed irregular and shrunken cell membranes. In addition, blapstin inhibited the activity of C. albicans biofilm and showed little hemolytic or toxic activity on human cells and it is highly expressed in the fat body, followed by the hemolymph, midgut, muscle, and defensive glands. These results indicate that blapstin may help insects fight against fungi and showed a potential application in the development of antifungal reagents. IMPORTANCE Candida albicans is one of the conditional pathogenic fungi causing severe nosocomial infections. Trichophyton rubrum and other skin fungi are the main pathogens of superficial cutaneous fungal diseases, especially in children and the elderly. At present, antibiotics such as amphotericin B, ketoconazole, and fluconazole are the main drugs for the clinical treatment of C. albicans and T. rubrum infections. However, these drugs have certain acute toxicity. Long-term use can increase kidney damage and other side effects. Therefore, obtaining broad-spectrum antifungal drugs with high efficiency and low toxicity for the treatment of C. albicans and T. rubrum infections is a top priority. Blapstin is an antifungal peptide which shows activity against C. albicans and T. rubrum. The discovery of blapstin provides a novel clue for our understanding of the innate immunity of Blaps rhynchopetera and provides a template for designing antifungal drugs.


Assuntos
Besouros , Dermatomicoses , Animais , Criança , Humanos , Idoso , Antifúngicos/uso terapêutico , Candida albicans , Testes de Sensibilidade Microbiana , Dermatomicoses/tratamento farmacológico , Peptídeos/farmacologia , Peptídeos Antimicrobianos
6.
Molecules ; 28(4)2023 Feb 19.
Artigo em Inglês | MEDLINE | ID: mdl-36838966

RESUMO

Recently zero-dimensional (0-D) inorganic-organic metal halides (IOMHs) have become a promising class of optoelectronic materials. Herein, we report a new photoluminescent (PL) 0-D antimony(III)-based IOMH single crystal, namely [H2BPZ][SbCl5]·H2O (BPZ = benzylpiperazine). Photophysical characterizations indicate that [H2BPZ][SbCl5]·H2O exhibits singlet/triplet dual-band emission. Density functional theory (DFT) calculations suggest that [H2BPZ][SbCl5]·H2O has the large energy difference between singlet and triplet states, which might induce the dual emission in this compound. Temperature-dependent PL spectra analyses suggest the soft lattice and strong electron-phonon coupling in this compound. Thermogravimetric analysis shows that the water molecules in the lattice of the title crystal could be removed by thermal treatment, giving rise to a dehydrated phase of [H2BPZ][SbCl5]. Interestingly, such structural transformation is accompanied by a reversible PL emission transition between red light (630 nm, dehydrated phase) and yellow light (595 nm, water-containing phase). When being exposed to an environment with 77% relative humidity, the emission color of the dehydrated phase was able to change from red to yellow within 20 s, and the red emission could be restored after reheating. The red to yellow emission switching could be achieved in acetone with water concentration as low as 0.2 vol%. The reversible PL transition phenomenon makes [H2BPZ][SbCl5]·H2O a potential material for luminescent water-sensing.


Assuntos
Temperatura Alta , Hipertermia Induzida , Antimônio , Cloretos , Luminescência , Halogênios
7.
Phytother Res ; 36(7): 2779-2802, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35561084

RESUMO

Hyperoside is a natural flavonol glycoside in various plants, such as Crataegus pinnatifida Bge, Forsythia suspensa, and Cuscuta chinensis Lam. Medical research has found that hyperoside possesses a broad spectrum of biological activities, including anticancer, anti-inflammatory, antibacterial, antiviral, antidepressant, and organ protective effects. These pharmacological properties lay the foundation for its use in treating multiple diseases, such as sepsis, arthritis, colitis, diabetic nephropathy, myocardial ischemia-reperfusion, pulmonary fibrosis, and cancers. Hyperoside is obtained from the plants and chemical synthesis. This study aims to provide a comprehensive overview of hyperoside on its sources and biological activities to provide insights into its therapeutic potential, and to provide a basis for high-quality studies to determine the clinical efficacy of this compound.


Assuntos
Crataegus , Quercetina , Anti-Inflamatórios/farmacologia , Crataegus/química , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Extratos Vegetais/uso terapêutico , Quercetina/análogos & derivados , Quercetina/farmacologia
8.
J Pharm Pharmacol ; 74(3): 321-336, 2022 Mar 03.
Artigo em Inglês | MEDLINE | ID: mdl-34612502

RESUMO

OBJECTIVES: Fructus arctii (F. arctii) is the dried ripe fruit of Arctium lappa Willd (Asteraceae). It is being used as a traditional medicine in China, Japan, Iran, Europe, Afghanistan, India, etc. for cough, inflammation, clearing the heat, detoxification, cancer and diabetes. This review summarized the botanical description, distribution, ethnopharmacology, bioactive constituents and pharmacological actions of F. arctii including methods to assess its quality. In addition, this review also provides insights into future research directions on F. arctii to further explore its bioactive constituents, mechanism involved in pharmacological activity, and clinical use including the development of new analytical methods for assessing the quality. KEY FINDINGS: The comprehensive analysis of the literature revealed that F. arctii contains lignans, volatile oil, flavonoids, sesquiterpenoids, triterpenes, phenolic acids, etc. Experimental studies on various extracts and drug formulations showed that it has antioxidant, antimicrobial, hypoglycaemic, lipid-lowering, anti-inflammatory, analgesic, antiviral, anti-tumour activity, etc. SUMMARY: The pharmacological activity of a few major constituents in F. arctii have been identified. However, there are still need more studies and more new technologies to prove the pharmacological activity and the effective mechanism of the other constituents that undergoing uncertain. Except for the animal experiments, clinical studies should be carried out to provide the evidence for clinical application.


Assuntos
Arctium/química , Medicina Tradicional/métodos , Extratos Vegetais/farmacologia , Animais , Etnofarmacologia , Frutas , Humanos , Compostos Fitoquímicos/farmacologia , Extratos Vegetais/química
9.
Phytomedicine ; 86: 153560, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33858739

RESUMO

BACKGROUND: The dried fruits of Brucea javanica (L.) Merr (BJ) is being widely investigated, both in lab and in clinic, to explore its potential anticancer activity and molecular mechanism involved. PURPOSE: We appraised the available literature and suggested the future research directions to improve the medicinal value of BJ. METHOD: In this review, we have summarized the scientific findings from experimental and clinical studies regarding the anticancer activity and mechanisms. RESULTS: Numerous studies have reported that BJ exerts anticancer effect on various types of cancer lines through inhibiting cell proliferation, inducing apoptosis, inhibiting migration/invasion, inducing autophagy and restraining angiogenesis. Brucea javanica triggers the generation of reactive oxygen species (ROS), release of cytochrome C, activation of mitochondrial apoptosis pathway and regulation of a series of signal pathways and proteins related to cancer. The molecular mechanism involved are inhibiting the PI3K/Akt/mTOR, NF-κB and Nrf2-Notch1 pathways; up or down modulating the levels of p53, p62, p21, Bax, and Bcl-2 respectively, and inhibiting the expression of matrix metalloproteinases (MMPs), vascular endothelial growth factor (VEGF), cyclooxygenase-2 (COX-2) and prostaglandin E2 (PGE2). Brucea javanica's efficacy in treating cancer patients either as a main or supportive treatment is also discussed in this review. CONCLUSION: This review will serve as a comprehensive resource of BJ's potential as anticancer agent and its molecular pathways. The analysis of the literature suggests that BJ can serve as a potential candidate for the treatment of cancer.


Assuntos
Antineoplásicos Fitogênicos/química , Antineoplásicos Fitogênicos/farmacologia , Brucea/química , Animais , Antineoplásicos Fitogênicos/uso terapêutico , Apoptose/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Inibidores de Ciclo-Oxigenase 2/química , Inibidores de Ciclo-Oxigenase 2/farmacologia , Frutas/química , Humanos , Transdução de Sinais/efeitos dos fármacos , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores
10.
J Ethnopharmacol ; 275: 114117, 2021 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-33848612

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Herba Siegesbeckiae, mainly includes Sigesbeckia orientalis L, Sigesbeckiae pubescens Makino and Sigesbeckiae glabrescens Makino. Herba Siegesbeckiae, also known as 'Xi-Xian Cao' (Chinese: ), has been regarded as an important traditional Chinese medicine since Tang dynasty. The dried aerial parts of Herba Siegesbeckiae are also being used as a herbal medicine in many countries such as Japan, Korea and Vietnam. In China, Herba Siegesbeckiae has been used for the treatment of rheumatic arthralgia with aching and weakness of loins and knees, as well as numbness of limbs. AIM OF THIS REVIEW: The aim of this review was to provide critical analysis on the scientific evidence to support the traditional uses of Herba Siegesbeckiae. The information available on its in botanical characteristics, traditional uses, chemical constituents, pharmacological activities, clinical studies, toxicity and quality control was summarized to understand the current research and provided the leas for future study. MATERIALS AND METHODS: The search terms "Herba Siegesbeckiae", "Sigesbeckia orientalis", "Sigesbeckia pubscens" and "Sigesbeckia glabrescens" were used to obtain the information from electronic databases such as Web of Science, China National Knowledge Infrastructure, PubMed, Google Scholar and SciFinder Scholar and other web search instruments (Springer, Yahoo search). The information provided in this review was based on peer-reviewed papers in English and Chinese. Besides, information was also collected from ancient documents. RESULT: The studies showed that Herba Siegesbeckiae contains sesquiterpenoids, diterpenoids, flavonoids and organic acids, etc. Due to these constituents, it displayed numerous pharmacological activities, such as anti-inflammatory, antitumor, antiallergic, antioxidant, antithrombotic and antibacterial activities. In addition, it showed effects in protecting myocardial and cerebral ischemia injury. CONCLUSIONS: According to its traditional uses, chemical constituents, pharmacological activities and clinic studies, Herba Siegesbeckiae is regarded as a promising medical plant with various chemical compounds and numerous pharmacological activities. However, fewer experimental studies were focused on toxicity and quantitative study of 3 species. It suggested that further in-depth study of toxicity and quality control were critical for future evaluation of drug efficacy and safety.


Assuntos
Asteraceae/química , Medicamentos de Ervas Chinesas/farmacologia , Medicamentos de Ervas Chinesas/uso terapêutico , Medicina Tradicional Chinesa/métodos , Animais , Estudos Clínicos como Assunto , Bases de Dados Factuais , Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/história , História Antiga , Humanos , Controle de Qualidade
11.
Chin J Nat Med ; 18(8): 612-619, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-32768168

RESUMO

Macroangiopathy is a complication of Type II Diabetes Mellitus (T2DM), which is mainly caused by fibrosis of blood vessels. Using T2DM rat models, we investigated whether the traditional Chinese medicine, Di-Dang Decoction (DDD), exhibited anti-fibrotic actions on great vessels. T2DM rats were randomly divided into non-intervention group, early-, middle-, late-stage DDD intervention groups and control groups, including pioglitazone group and aminoguanidine group. After administration of DDD to T2DM rats at different times, we detected the amount of extracellular matrix (ECM) deposition in the thoracic aorta. The results showed that early-stage intervention with DDD could effectively protect great vessels from ECM deposition. Considering that TGF-ß1 is the master regulator of fibrosis, we further validated at the molecular level that, compared to middle- and late-stage intervention with DDD, early-stage intervention with DDD could significantly decrease the expression levels of factors related to the activated TGF-ß1/Smad signalling pathway, as well as the expression levels of downstream effectors including CTGF, MMP and TIMP family proteins, which were directly involved in ECM remodelling. Therefore, early-stage intervention with DDD can reduce macrovascular fibrosis and prevent diabetic macroangiopathy.


Assuntos
Complicações do Diabetes/prevenção & controle , Medicamentos de Ervas Chinesas/uso terapêutico , Fibrose/prevenção & controle , Transdução de Sinais/efeitos dos fármacos , Doenças Vasculares/prevenção & controle , Animais , China , Diabetes Mellitus Experimental , Masculino , Ratos , Ratos Sprague-Dawley , Proteínas Smad/metabolismo , Fator de Crescimento Transformador beta1/metabolismo
12.
Sci Total Environ ; 733: 138338, 2020 Sep 01.
Artigo em Inglês | MEDLINE | ID: mdl-32446044

RESUMO

A pilot hybrid constructed wetland (CW) planted with reeds (Phragmite australis) and rice (Oryza sativa L.) was designed to treat liquid anaerobic digestate in the Yangtze River Delta, China. The hybrid CW system was composed of four stages: two reed vegetated vertical subsurface flow beds (VSSF: U1 and U2) in sequence, followed by a reed vegetated horizontal subsurface flow bed (HSSF: U3) and a rice vegetated surface flow bed (SF: U4). The average loading rate of digestate was 3.6 m3 per day during the experimental period. The average concentrations of TN and TP in the influent were 379 ± 58 mg L-1 and 29.6 ± 9.2 mg L-1, while the average removal efficiencies of TN and TP were 94.6% and 88.4%. Both TN and TP removal efficiencies in the second VSSF containing zeolite gave the highest removal performance, in which the mass removal rates were 21.3 ± 8.0 g-N m-2 d-1 and 0.99 ± 0.69 g-P m-2 d-1, respectively. Similarly, the highest removal performance for COD was also observed in the second VSSF with a mass removal rate of 79.9 ± 72.4 g-COD m-2 d-1. On the other hand, the average CH4 and N2O fluxes were highest in the first VSSF, at 31.8 ± 12.9 mg m-2 h-1 and 3.7 ± 2.8 mg m-2 h-1, respectively. There was a significant linear relationship between CH4 flux and DOC concentration in the pore water as well as a correlation between N2O flux and TN concentration. Total GWP of the hybrid CWs, derived from CH4 and N2O emissions, was 792.4 kg CO2-eq, of which CH4 and N2O emissions accounted for 66.0% and 34.0%, respectively. Consequently, the hybrid CWs emitted on average 0.93 kg CO2-eq to remove 1 kg COD while the average EF of TNin was 0.34%, suggesting that the use of multistage hybrid CWs could be efficiency-wise and environmentally a promising strategy for anaerobic digestate treatment.


Assuntos
Óxido Nitroso/análise , Áreas Alagadas , Anaerobiose , China , Metano/análise , Nitrogênio/análise , Nutrientes , Eliminação de Resíduos Líquidos
13.
Front Oncol ; 9: 968, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31681560

RESUMO

Background: There has been an increasing requirement for fresh tumor tissue to enroll in clinical trials in order to look for specific biomarkers. This has been shown to increase screening duration and increase screen failure rates. It was important to corroborate these results in other centers. Methods: This study is a non-randomized retrospective analysis of patients in one subset of patients seen by research nurses who operated in the standard head/neck and lung team not including patients in the phase 1 program. All patients were enrolled in clinical trials from January 16, 2013 to May 28, 2018 at USC Norris Comprehensive Cancer Institute in Los Angeles. Patients who were required to give fresh research biopsies prior to intervention were part of the research biopsy group. Results: In total, 76 patients were analyzed in this study. Thirty-three patients were in the research biopsygroup and 43 patients were in the no biopsy group. Trials that required a fresh biopsy had a longer median screening duration (30 vs. 14 days) than trials that did not require a biopsy (p < 0.0001). Conclusions: Our study shows that requiring biopsies prior to clinical trial treatment results in a statistically significant delay in treatment. The informed consent forms that were part of clinical trials involving mandatory research biopsies did not reflect this delay in treatment. However, these delays did not result in a statistically significant decrease in number of days on trial or days until progression of disease.

14.
Adv Healthc Mater ; 8(19): e1900840, 2019 10.
Artigo em Inglês | MEDLINE | ID: mdl-31512403

RESUMO

Mesoporous silica nanoparticles (MSNs) show great promise to be exploited as versatile multifunctional nanocarriers for effective cancer diagnosis and treatment. In this work, perfluorohexane (PFH)-encapsulated MSNs with indocyanine green (ICG)-polydopamine (PDA) layer and poly(ethylene glycol)-folic acid coating (designated as MSNs-PFH@PDA-ICG-PEG-FA) are successfully fabricated to achieve tumor ultrasonic (US)/near-infrared fluorescence (NIRF) imaging as well as photothermal therapy (PTT)/photodynamic therapy (PDT). MSNs-PFH@PDA-ICG-PEG-FA exhibits good monodispersity with high ICG loading, significantly enhances ICG photostability, and greatly improves cellular uptake. Upon single 808 nm NIR irradiation, the nanocarrier not only efficiently generates hyperthermia to realize PTT, but also produces reactive oxygen species (ROS) for effective PDT. Meanwhile, NIR irradiation can trigger PFH to undergo vaporization and provide a super-resolution US image. Thus, the PTT/PDT combination therapy can be dually guided by PFH-induced US imaging and ICG-induced NIRF imaging. In vivo antitumor studies demonstrate that PTT/PDT from MSNs-PFH@PDA-ICG-PEG-FA significantly inhibits tumor growth and achieves a cure rate of 60% (three out of five mice are completely cured). Hence, the multifunctional MSNs appear to be a promising theragnostic nanoplatform for multimodal cancer imaging and therapy.


Assuntos
Nanopartículas/química , Neoplasias/terapia , Fototerapia/métodos , Dióxido de Silício/química , Nanomedicina Teranóstica/instrumentação , Animais , Feminino , Fluorocarbonos/química , Ácido Fólico/química , Humanos , Hipertermia Induzida , Verde de Indocianina/química , Indóis/química , Células MCF-7 , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Microscopia Confocal , Fotoquimioterapia , Polietilenoglicóis/química , Polímeros/química , Espécies Reativas de Oxigênio/química , Temperatura , Nanomedicina Teranóstica/métodos
15.
Zhongguo Zhong Yao Za Zhi ; 44(12): 2607-2615, 2019 Jun.
Artigo em Chinês | MEDLINE | ID: mdl-31359731

RESUMO

To analyze the academic characteristics and medication rules of traditional Chinese medical master Liu Zu-yi for treating insomnia. Totally 178 cases of insomnia treated by Professor Liu were collected,and the treatment data were input into traditional Chinese medicine inheritance support system( TCMISS) by using data mining methods,such as essential information,frequency statistics of symptoms,syndrome type statistics,extraction of syndrome elements,frequency statistics of drugs; and four properties and five tastes of drugs,distribution of meridians,regularity of prescriptions,new prescription analysis were mined. It was found that the most commonly used drugs( over 100 times) were Albiziae Cortex,Longgu,Polygoni Multiflori Caulis,Ostreae Concha,Ziziphi Spinosae Semen,Crataegi Fructus; the commonly used couplet medicines were Longgu-Ostreae Concha,Ziziphi Spinosae Semen-Polygoni Multiflori Caulis,Ziziphi Spinosae Semen-Albiziae Cortex-Polygoni Multiflori Caulis; and seven new prescriptions in treating insomnia were explored,such as prescriptions containing Hordei Fructus Germinatus,Ziziphi Spinosae Semen,Galli Gigerii Endothelium Corneum,Rehmanniae Radix,Lilii Bulbus. Based on the introduction and discussion of Professor Liu's academic views and characteristics on insomnia treatment and the illustrative evidences added to the typical case list,this paper combines the academic characteristics,data support and typical medical records to verify each other,and objectively summarizes his academic experience for treating insomnia. Treatment shall focus on the primary cause of disease in three aspects; syndrome differentiation shall distinguish between excessive disease and deficient disease; therapy shall reinforce deficiency and reduce diarrhea,regulate the five internal organs,and emphasizes the heart and liver,particularly the liver; medication shall focus on the drugs for calming the mind and protecting the stomach and spleen,which are commonly combined with three types of traditional Chinese medicine with effect in introducing Yangqi( Pinelliae Rhizoma Praeparatum,Prunellae Spica,Polygoni Multiflori Caulis) and restraining Yangqi( Longgu,Ostreae Concha,Ziziphi Spinosae Semen); nursing care focuses on preserving the body and tranquilizing the mind by means of three methods for tranquilizing the mind and three methods for preserving the body.


Assuntos
Medicamentos de Ervas Chinesas/uso terapêutico , Medicina Tradicional Chinesa/normas , Distúrbios do Início e da Manutenção do Sono/tratamento farmacológico , Mineração de Dados , Humanos , Meridianos
16.
Cell Death Dis ; 9(3): 269, 2018 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-29449645

RESUMO

The epidermal growth factor receptor (EGFR) pathway and Hippo signaling play an important role in the carcinogenesis of hepatocellular carcinoma (HCC). However, the crosstalk between these two pathways and its implications in targeted therapy remains unclear. We found that the activated EGFR signaling could bypass RhoA to promote the expression of YAP(Yes-associated protein), the core effector of the Hippo signaling, and its downstream target Cyr61. Further studies indicated that EGFR signaling mainly acted through the PI3K-PDK1 (Phosphoinositide 3-kinase-Phosphoinositide-dependent kinase-1) pathway to activate YAP, but not the AKT and MAPK pathways. While YAP knockdown hardly affected the EGFR signaling. In addition, EGF could promote the proliferation of HCC cells in a YAP-independent manner. Combined targeting of YAP and EGFR signaling by simvastatin and the EGFR signaling inhibitors, including the EGFR tyrosine kinase inhibitor (TKI) gefitinib, the RAF inhibitor sorafenib and the MEK inhibitor trametinib, presented strong synergistic cytotoxicities in HCC cells. Therefore, the EGFR-PI3K-PDK1 pathway could activate the YAP signaling, and the activated EGFR signaling could promote the HCC cell growth in a YAP-independent manner. Combined use of FDA-approved inhibitors to simultaneously target YAP and EGFR signaling presented several promising therapeutic approaches for HCC treatment.


Assuntos
Proteínas Quinases Dependentes de 3-Fosfoinositídeo/metabolismo , Proteínas Adaptadoras de Transdução de Sinal/antagonistas & inibidores , Protocolos de Quimioterapia Combinada Antineoplásica/farmacologia , Carcinoma Hepatocelular/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Fosfatidilinositol 3-Quinase/metabolismo , Inibidores de Proteínas Quinases/farmacologia , Sinvastatina/farmacologia , Fatores de Transcrição/antagonistas & inibidores , Proteínas Adaptadoras de Transdução de Sinal/genética , Proteínas Adaptadoras de Transdução de Sinal/metabolismo , Carcinoma Hepatocelular/enzimologia , Carcinoma Hepatocelular/genética , Carcinoma Hepatocelular/patologia , Proliferação de Células/efeitos dos fármacos , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/metabolismo , Gefitinibe/farmacologia , Regulação Neoplásica da Expressão Gênica , Células Hep G2 , Humanos , Neoplasias Hepáticas/enzimologia , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/patologia , Terapia de Alvo Molecular , Piridonas/farmacologia , Pirimidinonas/farmacologia , Transdução de Sinais/efeitos dos fármacos , Sorafenibe/farmacologia , Fatores de Transcrição/genética , Fatores de Transcrição/metabolismo , Proteínas de Sinalização YAP
17.
Zhen Ci Yan Jiu ; 42(3): 189-96, 2017 Jun 25.
Artigo em Chinês | MEDLINE | ID: mdl-29071973

RESUMO

OBJECTIVE: To observe the effect of transcutaneous otopoint electrostimulaiton (TCOES) on seizure frequency, immunoreactivity of hippocampal gliocytes and expression of proinflammatory cytokine interleukin-6(IL-6) and anti-inflammatory cytokine IL-10 in chronic temporal lobe epilepsy (CTLE) rats, so as to investigate its antiepileptic mechanism. METHODS: Thirty-six SD rats were randomly divided into control, model and TCOES groups (n=12 in each group). The CTLE model was established by intraperitoneal injection (i.p.i.) of lithium chloride (127.2 mg/kg), scopolamine (1 mg/kg, 20 h after the 1st injection) and pilocarpine (10 mg/kg, 30 min after scopolamine injection). Rats of the control group were treated by i.p.i. of normal saline. TCOES (1 mA, 20 Hz) was applied to bilateral otopoint "Heart"-"Lung"-"Subcortex" region for 20 min, once daily for 6 weeks. The epileptic attack was observed by a video monitoring system. The numbers of ionized calcium-binding adapter molecule-1 (Iba 1)-labeled microgliacytes and glial fibrillary acidic protein (GFAP)-labeled astrocytes in the CA 1 and CA 3 regions of hippocampus were counted under light microscope after immunostaining, and the expression levels of hippocampal IL-6 and IL-10 proteins and genes were determined by immunofluorescence and quantitative real-time PCR, respectively. RESULTS: After TCOES intervention, the seizure frequency was significantly decreased in comparison with pre-treatment(P<0.05), modeling-induced dramatic increase of the numbers of microgliacytes and astrocytes,IL-6 immunoactivity in the hippocampal CA 1 and CA 3 regions, and IL-6 mRNA expression in the hippocampus were significantly suppressed (P<0.05), and hippo-campal IL-10 immunoactivity and mRNA expression were considerably up-regulated in comparison with the model group (P<0.05). CONCLUSIONS: TCOES intervention has an antiepileptic effect in CTLE rats, which may be associated with its effects in suppressing gliocyte proliferation, suppressing the expression of proinflammatory cytokine IL-6, and up-regulaiting the expression of anti-inflammatory cytokine IL-10 in the hippocampus.


Assuntos
Eletroacupuntura , Epilepsia do Lobo Temporal/terapia , Hipocampo/citologia , Interleucina-10/metabolismo , Interleucina-6/metabolismo , Neuroglia/citologia , Pontos de Acupuntura , Animais , Proliferação de Células , Modelos Animais de Doenças , Hipocampo/metabolismo , Ratos , Ratos Sprague-Dawley
18.
Acupunct Med ; 35(5): 324-331, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28630049

RESUMO

OBJECTIVES: To assess the effectiveness of electroacupuncture (EA) relative to conventional medication in functional constipation (FC). DESIGN: Systematic review and meta-analysis. SETTING: To be included, studies needed to: (1) have been randomised controlled trials; (2) have recruited adult patients diagnosed with FC according to the Rome II/III criteria or the American Gastroenterological Association guideline for chronic FC; and (3) have randomised patients to be treated with EA or anti-constipation medication. We searched Medline, the Cochrane Library and Embase databases for articles published up to 30 June 2016. INTERVENTION: EA or anti-constipation medication. PRIMARY AND SECONDARY OUTCOME MEASURES: The primary outcome was the change in the number of weekly spontaneous bowel movements. Secondary outcomes were total response rate (or total effective rate), symptom reduction and Cleveland Clinic constipation scores. RESULTS: The pooled results showed significantly more improvement in the frequency of spontaneous bowel movements in the EA treatment group compared with the medicine-treated group (pooled SMD 0.244, 95% CI 0.065 to 0.424, P=0.008). Deep-needling EA was significantly more effective than treatment with medication at increasing the frequency of spontaneous bowel movements (p=0.019). Significantly greater improvement was also seen for total response rates (p=0.018) and reductions in symptom score (p<0.001) in EA-treated patients. CONCLUSIONS: EA was more effective than medication at improving spontaneous bowel movements and total response rate, and reducing the symptoms of FC.


Assuntos
Constipação Intestinal/terapia , Defecação , Eletroacupuntura , Laxantes/uso terapêutico , Adulto , Idoso , Constipação Intestinal/tratamento farmacológico , Defecação/efeitos dos fármacos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem
19.
Parasitol Res ; 116(7): 2017-2025, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-28528516

RESUMO

Dactylogyrus ctenopharyngodonid and Ichthyophthirius multifiliis are two important ectoparasites of freshwater fish. Co-infection by the two parasites leads to high fish mortality and results in heavy economic losses. This study aimed to evaluate the efficacy of medicated feed and a ginger extract bath against D. ctenopharyngodonid and I. multifiliis on grass carp and investigate the hematological response of grass carp co-infected by the two parasites. These results demonstrated that red blood cell (RBC) and thrombocyte percentage among leucocytes significantly decreased after grass carp were co-infected by D. ctenopharyngodonid and I. multifiliis. The monocyte and neutrophil percentages significantly increased with the increment of parasite mean intensities, while the lymphocyte percentage decreased. The activities of serum acid phosphatase (ACP), alkaline phosphatase (AKP), lysozyme (LZM), and superoxide dismutase (SOD) significantly increased after co-infection. When grass carp treated with medicated feed containing 4% of Astragalus membranaceus, Allium sativum, Morus alba, and Glycyrrhiza uralensis, the activities of ACP, AKP, LZM, and SOD were significantly enhanced, and the mean intensities of D. ctenopharyngodonid and I. multifiliis were significantly decreased. When grass carp was treated with medicated feed and a 4-mg/L ginger extract bath, all parasites were eliminated during 28 days. The bath of ginger extract at a concentration of 4 mg/L kept a low mean intensity of I. multifiliis and D. ctenopharyngodonid, then the two parasites were eliminated by oral administration of the medicated feed with an immunostimulant (Chinese medicine compound).


Assuntos
Carpas/parasitologia , Infecções por Cilióforos/veterinária , Medicamentos de Ervas Chinesas/uso terapêutico , Doenças dos Peixes/parasitologia , Hymenostomatida , Infecções por Trematódeos/veterinária , Ração Animal , Animais , Infecções por Cilióforos/tratamento farmacológico , Coinfecção , Alho , Zingiber officinale , Hymenostomatida/efeitos dos fármacos , Trematódeos , Infecções por Trematódeos/tratamento farmacológico
20.
Environ Sci Pollut Res Int ; 24(5): 4841-4850, 2017 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-27987124

RESUMO

To better understand N runoff losses from rice-wheat rotation and demonstrate the effectiveness of improved fertilizer management in reducing N runoff losses, a field study was conducted for three consecutive rice-wheat rotations. Nitrogen losses through surface runoff were measured for five treatments, including CK without N application, C200, C300 simulating the conventional practices, CO200, and CO300. Optimum N rate was applied for C200 and CO200, and 30% of chemical fertilizer was substituted with organic fertilizer for CO200 and CO300 with respect to C200 and C300, respectively. Rice season had higher runoff coefficients than wheat season. Approximately 52% of total N was lost as NH4+-N in rice season, ranging from 21 to 83%, and in wheat season, the proportion of NO3--N in total N averaged 53% with a variation from 38 to 67%. The N treatments lost less total N in rice season (1.67-10.7 kg N ha-1) than in wheat season (1.72-17.1 kg N ha-1). These suggested that a key to controlling N runoff losses from rice-wheat rotation was to limit NO3--N accumulation in wheat season. In both seasons, N runoff losses for C200 and CO300 were lower than those for C300. CO200 better cut N losses than C200 and CO300, with 64 and 57% less N in rice and wheat seasons than C300, respectively. Compared with the conventional practices, optimum N inputs integrated with co-application of organic and chemical fertilizers could reduce N runoff losses with a better N balance under rice-wheat rotation.


Assuntos
Produção Agrícola/métodos , Fertilizantes , Oryza , Triticum , Poluição da Água/prevenção & controle , Nitrogênio , Fósforo , Estações do Ano , Movimentos da Água
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