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1.
Int J Nanomedicine ; 18: 7661-7676, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38111844

RESUMO

Background: Volumetric Muscle Loss (VML) denotes the traumatic loss of skeletal muscle, a condition that can result in chronic functional impairment and even disability. While the body can naturally repair injured skeletal muscle within a limited scope, patients experiencing local and severe muscle loss due to VML surpass the compensatory capacity of the muscle itself. Currently, clinical treatments for VML are constrained and demonstrate minimal efficacy. Selenium, a recognized antioxidant, plays a crucial role in regulating cell differentiation, anti-inflammatory responses, and various other physiological functions. Methods: We engineered a porous Se@SiO2 nanocomposite (SeNPs) with the purpose of releasing selenium continuously and gradually. This nanocomposite was subsequently combined with a decellularized extracellular matrix (dECM) to explore their collaborative protective and stimulatory effects on the myogenic differentiation of adipose-derived mesenchymal stem cells (ADSCs). The influence of dECM and NPs on the myogenic level, reactive oxygen species (ROS) production, and mitochondrial respiratory chain (MRC) activity of ADSCs was evaluated using Western Blot, ELISA, and Immunofluorescence assay. Results: Our findings demonstrate that the concurrent application of SeNPs and dECM effectively mitigates the apoptosis and intracellular ROS levels in ADSCs. Furthermore, the combination of dECM with SeNPs significantly upregulated the expression of key myogenic markers, including MYOD, MYOG, Desmin, and myosin heavy chain in ADSCs. Notably, this combination also led to an increase in both the number of mitochondria and the respiratory chain activity in ADSCs. Conclusion: The concurrent application of SeNPs and dECM effectively diminishes ROS production, boosts mitochondrial function, and stimulates the myogenic differentiation of ADSCs. This study lays the groundwork for future treatments of VML utilizing the combination of SeNPs and dECM.


Assuntos
Células-Tronco Mesenquimais , Nanocompostos , Selênio , Humanos , Dióxido de Silício , Espécies Reativas de Oxigênio/metabolismo , Selênio/farmacologia , Porosidade , Músculo Esquelético , Diferenciação Celular
2.
Plant Dis ; 2023 Mar 07.
Artigo em Inglês | MEDLINE | ID: mdl-36880858

RESUMO

Aconitum carmichaelii Debeaux is used as a traditional Chinese medicine with antiarrhythmic, antiinflammatory and other pharmacological functions. It is widely cultivated in China. According to our survey, about 60% of A. carmichaelii in Qingchuan, Sichuan, suffered from root rot, reducing yields by 30% in the past five years. Symptomatic plants exhibited stunted growth, dark brown roots, reduced root biomass, and fewer root hairs. The disease caused root rot and plant death in 50% of the infected plants. In October 2019, ten symptomatic 6-month-old plants were collected from fields in Qingchuan. Diseased pieces of the roots were surface sterilized with sodium hypochlorite solution (2%), rinsed three times in sterile water, plated on potato dextrose agar (PDA), and incubated at 25°C in the dark. Six single-spore isolates of a Cylindrocarpon-like anamorp were obtained. The colonies on PDA were 35 to 37 mm diam after seven days with regular margins. The plates were covered with felty aerial mycelium, white to buff, and the reverse side chestnut near center with a ochre to yellowish leading edge. On spezieller nährstoffarmer agar (SNA), macroconidia were 1 to 3 septate, straight or slightly curved, cylindrical, with rounded ends, and varied in size: 1-septate 15.1 to 33.5 × 3.7 to 7.3 µm (n=250), 2-septate 16.5 to 48.5 × 3.7 to 7.6 µm (n=85), and 3-septate 22.0 to 50.6 × 4.9 to 7.4 µm (n=115). Microconidia were ellipsoid to ovoid, and 0 to 1 septate; aseptate spores were 4.5 to 16.8 × 1.6 to 4.9 µm (n=200), and 1-septate spores were 7.4 to 20.0 × 2.4 to 5.1 µm (n=200). The chlamydospores were brown, thick-walled, globose to subglobose, 7.9 to 15.9 µm (n=50). The morphology of these isolates was consistent with the previous description of Ilyonectria robusta (Cabral et al. 2012). Isolate QW1901 was characterized by sequencing the ITS, TUB, H3, and tef1α loci using previously reported primer pairs: ITS1/ITS4 (White et al. 1990), T1/Bt-2b (O'Donnell and Cigelnik 1997), CYLH3F/CYLH3R (Crous et al. 2004), and EF1/EF2 (O'Donnell et al. 1998). A Blastn search of the sequences of ITS, TUB, H3, and tef1α showed that QW1901 shared 99.26, 97.89, 97.79, and 99.17 % identities, respectively, with the ex-type strain of I. robusta (CBS308.35). The ITS, TUB, H3, and tef1α sequences were deposited in GenBank under accession nos. MW534715, and MW880180 to MW880182, respectively. A phylogenetic tree was constructed from a neighbor-joining analysis on the alignment of the combined ITS, TUB, H3, and tef1α sequence. QW1901 was clustered with the ex-type strain of I. robusta. To confirm the pathogenicity of I. robusta, bare roots of healthy 6-month-old A. carmichaelii were inoculated with mycelial plugs of 7-day-old QW1901 colonies selected randomly (Lu et al. 2015). Five needle-wound lateral roots and five intact roots were inoculated as replicates with pathogen-free agar plugs as a control. Then, all plants were grown in sterile soil in a growth chamber at 20±1°C and watered regularly. Pathogenicity assays were repeated twice. After 20 days of cultivation, infected plants exhibited symptoms similar to those observed in the field. All control plants remained asymptomatic. Sequencing confirmed the re-isolation of I. robusta from the inoculated plants, satisfying Koch's hypothesis. Ilyonectria robusta has been reported to cause root rot of plants such as Codonopsis tangshen and Panax ginseng ( Lu et al. 2015; Zheng et al. 2021), and has also been reported to be isolated from Aconitum kongboense in China (Wang et al. 2015). However, this is the first report of the pathogen causing root rot of A. carmichaelii. Management measures, such as growing disease-free seedlings in sterile soil, should be used to minimize the risk of this pathogen.

3.
BMC Genomics ; 22(1): 839, 2021 Nov 19.
Artigo em Inglês | MEDLINE | ID: mdl-34798822

RESUMO

BACKGROUND: Bupleurum chinense DC. is a widely used traditional Chinese medicinal plant. Saikosaponins are the major bioactive constituents of B. chinense, but relatively little is known about saikosaponin biosynthesis. In the present study, we performed an integrated analysis of metabolic composition and the expressed genes involved in saikosaponin biosynthetic pathways among four organs (the root, flower, stem, and leaf) of B. chinense to discover the genes related to the saikosaponin biosynthetic pathway. RESULTS: Transcript and metabolite profiles were generated through high-throughput RNA-sequencing (RNA-seq) data analysis and liquid chromatography tandem mass spectrometry, respectively. Evaluation of saikosaponin contents and transcriptional changes showed 152 strong correlations (P < 0.05) over 3 compounds and 77 unigenes. These unigenes belonged to eight gene families: the acetoacetyl CoA transferase (AACT) (6), HMG-CoA synthase (HMGS) (2), HMG-CoA reductase (HMGR) (2), mevalonate diphosphate decarboxylase (MVD) (1), 1-deoxy-D-xylulose-5-phosphate synthase (DXS) (3), farnesyl diphosphate synthase (FPPS) (11), ß-amyrin synthase (ß-AS) (13) and cytochrome P450 enzymes (P450s) (39) families. CONCLUSIONS: Our results investigated the diversity of the saikosaponin triterpene biosynthetic pathway in the roots, stems, leaves and flowers of B. chinese by integrated transcriptomic and metabolomic analysis, implying that manipulation of P450s genes such as Bc95697 and Bc35434 might improve saikosaponin biosynthesis. This is a good candidate for the genetic improvement of this important medicinal plant.


Assuntos
Bupleurum , Saponinas , Bupleurum/genética , Humanos , Metaboloma , Ácido Oleanólico/análogos & derivados , Raízes de Plantas , Transcriptoma
4.
Am J Chin Med ; 49(3): 543-575, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33683189

RESUMO

Chinese medicine (CM) was extensively used to treat COVID-19 in China. We aimed to evaluate the real-world effectiveness of add-on semi-individualized CM during the outbreak. A retrospective cohort of 1788 adult confirmed COVID-19 patients were recruited from 2235 consecutive linked records retrieved from five hospitals in Wuhan during 15 January to 13 March 2020. The mortality of add-on semi-individualized CM users and non-users was compared by inverse probability weighted hazard ratio (HR) and by propensity score matching. Change of biomarkers was compared between groups, and the frequency of CMs used was analyzed. Subgroup analysis was performed to stratify disease severity and dose of CM exposure. The crude mortality was 3.8% in the semi-individualized CM user group and 17.0% among the non-users. Add-on CM was associated with a mortality reduction of 58% (HR = 0.42, 95% CI: 0.23 to 0.77, [Formula: see text] = 0.005) among all COVID-19 cases and 66% (HR = 0.34, 95% CI: 0.15 to 0.76, [Formula: see text] = 0.009) among severe/critical COVID-19 cases demonstrating dose-dependent response, after inversely weighted with propensity score. The result was robust in various stratified, weighted, matched, adjusted and sensitivity analyses. Severe/critical patients that received add-on CM had a trend of stabilized D-dimer level after 3-7 days of admission when compared to baseline. Immunomodulating and anti-asthmatic CMs were most used. Add-on semi-individualized CM was associated with significantly reduced mortality, especially among severe/critical cases. Chinese medicine could be considered as an add-on regimen for trial use.


Assuntos
COVID-19/prevenção & controle , Medicamentos de Ervas Chinesas/uso terapêutico , Hospitalização/estatística & dados numéricos , Medicina Tradicional Chinesa/métodos , Sistema de Registros/estatística & dados numéricos , SARS-CoV-2/efeitos dos fármacos , Adulto , Idoso , Idoso de 80 Anos ou mais , COVID-19/epidemiologia , COVID-19/virologia , China/epidemiologia , Medicamentos de Ervas Chinesas/classificação , Epidemias , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , SARS-CoV-2/isolamento & purificação , SARS-CoV-2/fisiologia
5.
Medicine (Baltimore) ; 99(52): e23674, 2020 Dec 24.
Artigo em Inglês | MEDLINE | ID: mdl-33350748

RESUMO

BACKGROUND: Tuberculosis is an infectious disease caused by mycobacterium tuberculosis. It may occur in multiple parts and organs of the patients body, and the lung is the most common. It is a major health threat worldwide. Hepatotoxicity is a common adverse reaction of commonly used clinical anti-tuberculosis drugs, as well as one of the important factors leading to poor prognosis of tuberculosis. Milk thistle is a traditional Chinese medicine extract derived from the mature fruit of Silybum marianum. Clinical practice shows that milk thistle has a good anti-liver injury effect and can be used to prevent anti-tuberculosis drug-induced liver injury. However, there is a lack of evidence-based medicine. The research carried out in this protocol is to systematically evaluate the efficacy and safety of milk thistle preventive treatment of anti-tuberculosis drug-induced liver injury, and to improve the evidence-based basis for clinical application of milk thistle in the preventive treatment of anti-tuberculosis drug-induced liver injury. METHOD: Computer search of English databases (PubMed, the Cochrane Library, Embase, Web of Science) and Chinese databases (CNKI, VIP, Wanfang, China Biology Medicine disc (CBMdisc)) was performed. From the establishment of database to October 2020, 2 researchers independently extracted and evaluated the data included in the randomized controlled clinical research of milk thistle preventive treatment of anti-tuberculosis drug-induced liver injury, and used RevMan5.3 software to conduct a meta-analysis of the included literature. RESULT: In this research, the efficacy and safety of milk thistle preventive treatment of anti-tuberculosis drug-induced liver injury were evaluated by indicators such as the incidence of liver injury, bilirubin levels, and liver enzyme levels. CONCLUSION: In this research, reliable evidence-based evidence for the clinical application of milk thistle in the preventive treatment of anti-tuberculosis drug-induced liver injury was provided. OSF REGISTRATION NUMBER: DOI: 10.17605/OSF.IO/VC3RM.


Assuntos
Antituberculosos , Doença Hepática Induzida por Substâncias e Drogas , Medicamentos de Ervas Chinesas , Silybum marianum , Tuberculose Pulmonar , Humanos , Antituberculosos/efeitos adversos , Doença Hepática Induzida por Substâncias e Drogas/prevenção & controle , Medicamentos de Ervas Chinesas/administração & dosagem , Medicamentos de Ervas Chinesas/uso terapêutico , Resultado do Tratamento , Tuberculose Pulmonar/tratamento farmacológico , Revisões Sistemáticas como Assunto , Metanálise como Assunto
6.
Chin J Nat Med ; 18(4): 308-320, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32402408

RESUMO

Osthole is observed to have the capacity to treat pulmonary arterial hypertension (PAH) in rats, but molecular mechanism is still unknown. The present study aims to discover therapeutic targets and explore therapeutic mechanism of osthole against PAH from metabolic perspective. A rat model with PAH was successfully established with MCT, following osthole administration, then untargeted metabolomics assay was performed using UPLC-Q-TOF-MS to identify differential metabolites and associated metabolic pathways, at last mechanism investigation was done by qRT-PCR, Western blot and ELISA. Differential metabolites characterized in rats with PAH were mostly assigned to sphingolipid metabolism, synthesis of unsaturated fatty acids, glycolysis, nucleotide metabolism, steroid hormone biosynthesis. Furthermore, osthole reversed high level of S1P by modulating metabolic enzyme Sphk1 in rats with PAH. In addition, osthole inhibited the expression of Sphk1 by downregulating microRNA-21, phosphorylation of Akt, phosphorylation of mTOR in vivo and in vitro. These results demonstrated that metabolomics is a promising approach to discover potential drug target for PAH treatment. Importantly, our findings further elucidated therapeutic mechanism of osthole, a natural product, having a role of metabolic regulator to potentially treat PAH by targeting inhibition of Sphk1/S1P via microRNA-21-PI3K/Akt/mTOR signal pathway. Altogether, this discovery paves a critical foundation for enabling osthole to be a candidate compound to treat PAH.


Assuntos
Cumarínicos/farmacologia , Lisofosfolipídeos/metabolismo , Hipertensão Arterial Pulmonar/tratamento farmacológico , Esfingosina/análogos & derivados , Animais , Modelos Animais de Doenças , Regulação para Baixo , Masculino , MicroRNAs/metabolismo , Fosfatidilinositol 3-Quinases/metabolismo , Fosfotransferases (Aceptor do Grupo Álcool)/metabolismo , Proteínas Proto-Oncogênicas c-akt/metabolismo , Ratos , Ratos Sprague-Dawley , Esfingosina/metabolismo , Serina-Treonina Quinases TOR/metabolismo
7.
Fitoterapia ; 140: 104412, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31698060

RESUMO

Aconitum carmichaelii has been used in traditional Chinese medicine for treating various diseases for several thousand years. Based on the biosynthetic pathway of some alkaloids such as C19-diterpenoid alkaloids and obvious differences in alkaloid content between leaves of two A. carmichaelii varieties has been reported, we performed leaves transcriptome analysis of two A. carmichaelii varieties. Besides we characterized the biosynthetic pathway of salsolinol. A total of 56 million raw reads (8.28 G) and 55 million clean reads (8.24 G) were obtained from two varieties (Z175 and R184) leaves transcriptome, respectively, and 176,793 unigenes were annotated. 281 and 843 unigenes are involved in the salsolinol biosynthetic pathway and the formation of C19-diterpenoid alkaloids respectively. And including 34 and 24 unigenes are the differentially expressed genes (DEGs) in the biosynthesis pathway for C19-diterpenoid alkaloids and salsolinol between Z175 and R184 respectively, which were target genes to explore differences in C19-diterpenoid alkaloid and salsolinol biosynthesis in Z175 and R184. Thus genes involved in alkaloid biosynthesis and accumulation differ between varieties leaves. The mechanisms underlying the differences and their relevance require further exploration. The results expand our knowledge of alkaloids biosynthesis in A. carmichaelii leaves, and provide a theoretical basis for analysis differences in alkaloids biosynthesis patterns in different varieties.


Assuntos
Aconitum/química , Vias Biossintéticas , Isoquinolinas/química , Transcriptoma , Alcaloides/biossíntese , China , Diterpenos/química , Perfilação da Expressão Gênica , Compostos Fitoquímicos/isolamento & purificação , Compostos Fitoquímicos/farmacologia , Folhas de Planta/química , Plantas Medicinais/química
8.
Sci Rep ; 8(1): 5556, 2018 04 03.
Artigo em Inglês | MEDLINE | ID: mdl-29615702

RESUMO

Pulmonary arterial hypertension (PAH) is a progressive cardiovascular-disease with high mortality lacking high-efficiency drug. Our efforts attempted to delineate therapeutic action of osthole produced by Angelica Pubescens Maxim, which has the capacity to treat PAH by exploiting an iTRAQ-based proteomic method. Excitingly, osthole was observed to significantly restore 98 of 315 differential proteins significantly modified by PAH progression. They were primarily annotated into 24 signaling pathways. Four mostly affected proteins (RPL15, Cathepsin S, Histone H3.3 and HMGB1) were experimentially validated which belonged to ribosome pathway, oxidative phosphorylation pathway, systemic lupus erythematosus pathway, complement and coagulation cascades pathway, whose modifications and modulations mostly accounted for therapeutic capacity of this compound against PAH. Altogether, our findings demonstrated that global proteomics is a promising systems-biology approach for deciphering therapeutic actions and associated mechanisms of natural products derived from traditional Chinese medicine. Importantly, osthole is supposed to be a candidate compound for new drug development to treat PAH.


Assuntos
Cumarínicos/farmacologia , Hipertensão Pulmonar/tratamento farmacológico , Hipertensão Pulmonar/metabolismo , Proteômica , Animais , Pressão Arterial/efeitos dos fármacos , Cumarínicos/uso terapêutico , Progressão da Doença , Descoberta de Drogas , Regulação da Expressão Gênica/efeitos dos fármacos , Hipertensão Pulmonar/patologia , Hipertensão Pulmonar/fisiopatologia , Hipertrofia Ventricular Direita/complicações , Hipertrofia Ventricular Direita/tratamento farmacológico , Masculino , Artéria Pulmonar/efeitos dos fármacos , Artéria Pulmonar/patologia , Artéria Pulmonar/fisiopatologia , Ratos , Ratos Wistar , Transdução de Sinais/efeitos dos fármacos , Remodelação Vascular/efeitos dos fármacos
9.
Zhongguo Zhen Jiu ; 37(10): 1041-4, 2017 Oct 12.
Artigo em Chinês | MEDLINE | ID: mdl-29354970

RESUMO

OBJECTIVE: To explore the methods for the therapeutic effect improvement in the treatment of post-stroke urinary retention. METHODS: Sixty-three patients of post-stroke urinary retention were randomized into an observation group (32 cases) and a control group (31 cases). The routine clinical medication of neurology and basic rehabilitation were adopted in the two groups. Additionally, in the control group, the intermittent urinary catheterization and bladder function training were applied. The duration and frequency of catheterization were determined by the autonomic urination and residual urine volume every day. In the observation group, on the basis of the treatment as the control group, acupuncture was applied to the twelve jing-well points in the sequence of qi flowing among the twelve meridians [Shaoshang (LU 11), Shangyang (LI 1), Lidui (ST 45), Yinbai (SP 1), Shaochong (HT 9), Shaoze (SI 1), Zhiyin (BL 67), Yongquan (KI 1), Zhongchong (PC 9), Guanchong (TE 1), Zuqiaoyin (GB 44) and Dadun (LR 1)]. Acupuncture was given once a day, 20 treatments were required. In 20 treatments, the clinical therapeutic effects and the residual urine volume were observed. RESULTS: The total effective rate was 90.6% (29/32) in the observation group, better than 67.7% (21/31) in the control group (P<0.01)). After treatment, the residue urine volume was all reduced apparently in the patients of the two groups (both P<0.01). The result of the residue urine volume in the observation group was lower apparently than that in the control group (P<0.01). CONCLUSION: Acupuncture at the jing-well points in the sequence of qi flowing among meridians combined with bladder function training achieve the apparent therapeutic effects on post-stroke urinary retention. The results are better than those achieved by the routine western medicine with bladder function training involved.


Assuntos
Pontos de Acupuntura , Terapia por Acupuntura/métodos , Acidente Vascular Cerebral/complicações , Retenção Urinária/terapia , Humanos , Resultado do Tratamento , Bexiga Urinária , Retenção Urinária/etiologia
10.
Zhongguo Zhen Jiu ; 35(7): 661-4, 2015 Jul.
Artigo em Chinês | MEDLINE | ID: mdl-26521575

RESUMO

OBJECTIVE: To compare the differences in the clinical efficacy on post-stroke speech disorder between scalp electric acupuncture (EA) under anatomic orientation combined with rehabilitation training and simple rehabilitation training. METHODS: Sixty patients of post-stroke speech apraxia were randomized into an observation group and a control group, 30 cases in each one. In the observation group, under anatomic orientation, the scalp EA was adopted to the dominant hemisphere Broca area on the left cerebrum. Additionally, the speech rehabilitation training was combined. In the control group, the speech rehabilitation training was simply,used. The treatment lasted for 4 weeks totally. The speech movement program module in the psychological language assessment and treatment system of Chinese aphasia was used for the evident of efficacy assessment. The scores of counting, singing scale, repeating phonetic alphabet, repeating monosyllable and repeating disyllable were observed in the patients of the two groups. The assessment was done separately on the day of grouping and 4 weeks after treatment. RESULTS: In 4 weeks of treatment, the scores of counting, singing scale, repeating phonetic alphabet, repeating monosyllable and repeating disyllable were all improved as compared with those before treatment in the two groups (all P<0. 001). The results in the observation group were better than those in the control group (all P< 0. 05). The total effective rate was 100. 0% (30/30) in the observation group, superior apparently to 53. 3% (16/30) in the control group (P<0. 001). CONCLUSION: The scalp EA under anatomic orientation combined with' speech rehabilitation training obviously improves speech apraxia in stroke patients so that the speech disorder cani be relieved. The efficacy is better than that in simple rehabilitation training.


Assuntos
Pontos de Acupuntura , Apraxias/terapia , Eletroacupuntura , Distúrbios da Fala/terapia , Acidente Vascular Cerebral/complicações , Adolescente , Adulto , Idoso , Apraxias/etiologia , Apraxias/fisiopatologia , Apraxias/reabilitação , Feminino , Humanos , Idioma , Masculino , Pessoa de Meia-Idade , Distúrbios da Fala/fisiopatologia , Distúrbios da Fala/reabilitação , Fonoterapia , Adulto Jovem
11.
Rapid Commun Mass Spectrom ; 29(3): 283-94, 2015 Feb 15.
Artigo em Inglês | MEDLINE | ID: mdl-26411626

RESUMO

RATIONALE: Neopanaxadiol (NPD) is one of the major ginsenosides in Panax ginseng C. A. Meyer (Araliaceae) that has been suggested to be a drug candidate against Alzheimer's disease. However, few data are available regarding its metabolism in rats. METHODS: In this study, a method of ultraperformance liquid chromatography/quadrupole-time-of-flight mass spectrometry (UPLC/QTOFMS) was developed to identify major metabolites of NPD in the stomach, intestine, urine and feces of rats, with the aim of determining the main metabolic pathways of NPD in rats after oral administration. RESULTS: UPLC/QTOFMS revealed two metabolites in the stomach of rats, one metabolite in the intestine and two metabolites in feces. One metabolite, named M2, was isolated and purified from rats feces, which was identified as (20S,22S)-dammar-22,25-epoxy-3ß,12ß,20-triol based on extensive NMR spectroscopy and mass spectrometry data. The main metabolites of NPD in rats were the products of epoxidation, dehydrogenation and hydroxylation. NPD was predominantly metabolized by 20,22-double-bond epoxidation and rearrangement to yield an expoxidation product (M2). CONCLUSIONS: Based on the profiles of the metabolites, possible metabolic pathways of NPD in rats were proposed for the first time. This study provides new and available information on the metabolism of NPD, which is indispensable for further research on metabolic pathways of dammarane ginsengenins in vivo.


Assuntos
Ginsenosídeos/análise , Ginsenosídeos/metabolismo , Animais , Cromatografia Líquida de Alta Pressão/métodos , Fezes/química , Mucosa Gástrica/metabolismo , Ginsenosídeos/urina , Mucosa Intestinal/metabolismo , Intestinos/química , Panax/química , Ratos , Ratos Sprague-Dawley , Espectrometria de Massas em Tandem/métodos
12.
Neural Regen Res ; 8(3): 208-17, 2013 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-25206590

RESUMO

One hundred patients with focal epilepsy were recruited for the present study and their seizures controlled with antiepileptic drugs. The patients then orally received a capsule of tall gastrodis tuber powder, a traditional Chinese drug, and underwent single photon emission computed tomography, long-term electroencephalogram, and CT/MRI. Blood drug levels were monitored throughout the study. Before treatment with tall gastrodis tuber, 35 of the 100 cases had abnormal CT/MRI scans; 79 cases had abnormal single photon emission computed tomography images; 86 cases had abnormal electroencephalogram; and a total of 146 abnormal perfusion foci were observed across the 100 subjects. After treatment, the number of patients with normal single photon emission computed tomography images increased by 12; normal electroencephalogram was observed in an additional 27 cases and the number of patients with epileptiform discharge decreased by 29 (34% of 86); the total number of abnormal perfusion foci decreased by 52 (36%) and changes in abnormal foci were visible in 65 patients. These changes indicate that the administration of tall gastrodis tuber in combination with antiepileptic drugs repairs abnormal perfusion foci in patients with focal epilepsy. Our results demonstrate that traditional Chinese drugs can repair abnormal perfusion foci and, as such, are a promising new pathway in the treatment of focal epilepsy.

13.
Zhongguo Zhen Jiu ; 29(4): 339-41, 2009 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-19565747

RESUMO

According to the clinical experience and the active role of electroacupuncture instruments in clinical acupuncture and moxibustion, the potential security hazards of the available electroacupuncture instruments are pointed out. These hazards not only can cause injury to a varying degrees for the patient, but also lead to a poor therapeutic effect. The reasons of the security problems are mainly inaccurate regulation parameters, unreasonable displaying parameters, unscientific output of constant voltage, and unqualified protection measures for the electroacupuncture instrument. The countermeasures improving security and the measures increasing the intelligent level of the electroacupuncture instrument are put forward.


Assuntos
Eletroacupuntura/instrumentação , Gestão da Segurança/métodos , Segurança , Eletroacupuntura/métodos , Humanos
14.
Pak J Biol Sci ; 11(13): 1662-8, 2008 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-18819616

RESUMO

Prolamin and albumn variations of the storage proteins in 76 cultivated buckwheat accessions (55 accessions of Fagopyrum tataricum, 21 accessions of F. esculentum) from 7 countries were characterized by A-PAGE and SDS-PAGE, respectively, for the purpose of evaluating the genetic diversity of cultivated buckwheat at the level of proteins. A total of 18 prolamin bands were detected, among which 88.89 % bands were polymorphic. The number of albumn bands based on SDS-PAGE observed in accessions ranged from 4 to 10. Most intense bands were in the range of molecular weights from 29 to 97.2 kDa. The average of genetic similarity coefficient based on prolamin bands was 0.784 (in F. tataricum and F. esculentum were 0.892 and 0.681, respectively), while on prolamin and albumn bands was 0.742 (in F. tataricum and F. esculentum were 0.864 and 0.633, respectively). Accessions of F. tataricum and F. esculentum showed significant interspecific variation in the A-PAGE and SDS-PAGE profile of the storage proteins. The cluster analysis indicated that all the accessions could be divided into 3 groups and 3 subgroups. The genetic variations among cultivated buckwheat accessions were associated with their geographic origins in some degree.


Assuntos
Agricultura , Albuminas/genética , Fagopyrum/genética , Variação Genética/genética , Proteínas de Plantas/genética , Albuminas/metabolismo , Eletroforese em Gel de Poliacrilamida , Fagopyrum/classificação , Fagopyrum/metabolismo , Filogenia , Proteínas de Plantas/metabolismo , Prolaminas
15.
Zhongguo Zhong Yao Za Zhi ; 30(18): 1430-2, 2005 Sep.
Artigo em Chinês | MEDLINE | ID: mdl-16381463

RESUMO

OBJECTIVE: To study the chemical constituents of Artemisia ordosica. METHOD: The chemical constituents were isolated and repeatedly purified on silica gel column and the structures were elucidated by the NMR spectra and physico-chemical properties. RESULT: Eight flavonoids were obtained and identified as 5-hydroxy-7, 4'-dimethoxyflavanone, 5-hydroxy-7, 4'-dimethoxyflavone, 5, 4'-dihydroxy-7-methoxyflavone, 5, 7-dihydroxy-6, 4'-dimethoxyflavone, 5, 4'-dihydroxy-7-methoxyflavanone, 5, 3', 4'-trihydroxy-7-methoxyflavanone, 5, 7-dihydroxy-3', 4'-dimethoxyflavone and 5, 3', 4'-trihydroxy-7-methoxyflavone. CONCLUSION: All the compounds were obtained from A. ordosica for the first time.


Assuntos
Apigenina/isolamento & purificação , Artemisia/química , Flavonas/isolamento & purificação , Flavonoides/isolamento & purificação , Plantas Medicinais/química , Apigenina/química , Flavonas/química , Flavonoides/química
16.
Zhongguo Zhong Yao Za Zhi ; 30(8): 588-90, 2005 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-16011281

RESUMO

OBJECTIVE: To study the chemical constituents of Chondrilla piptocoma. METHOD: The chemical constituents were isolated and repeatedly purified on silica gel column and the structures were elucidated by the NMR spectra and physico-chemical properties. RESULT: Seven compounds were obtained and they are identified as luteolin, 5,7,4'-trihydroxy-3'-methoxy flavone, luteolin-7-O-beta-D-glucoside, apigenin, beta-sitosterol, stigmasterol, ursolic acid. CONCLUSION: All the compounds were obtained from C. piptocoma for the first time.


Assuntos
Apigenina/isolamento & purificação , Asteraceae/química , Luteolina/isolamento & purificação , Plantas Medicinais/química , Apigenina/química , Luteolina/química , Sitosteroides/química , Sitosteroides/isolamento & purificação , Estigmasterol/química , Estigmasterol/isolamento & purificação
17.
Zhong Yao Cai ; 28(2): 94-6, 2005 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-15981875

RESUMO

OBJECTIVE: To study the chemical constituents from Elsholtza bodinieri Vaniot. METHOD: The chemical constituents were isolated and repeatedly purified on silica gel column and the structures were elucidated by the NMR spectra and physico-chemical properties. RESULTS: Seven compounds were obtained and they are identified as 5,7-dihydroxyflavone, 5,7,3',4-tetrahydroxyflavone, 5,3',4'-trihydroxy-7-O-beta-D-glucoside, acacetin, oleanolic acid, beta-sitosterol, daucosterol. CONCLUSION: All the compounds were obtained from Elsholtzia bodinieri Vaniot for the first time.


Assuntos
Flavonas/isolamento & purificação , Flavonoides/isolamento & purificação , Lamiaceae/química , Plantas Medicinais/química , Cromatografia em Camada Fina , Flavonas/química , Flavonoides/química , Ácido Oleanólico/química , Ácido Oleanólico/isolamento & purificação , Sitosteroides/química , Sitosteroides/isolamento & purificação , Espectrofotometria Ultravioleta
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