RESUMO
Objective To evaluate the risk factors for development of primary hepatic carcinoma(PHC)in patients with hepatitis B virus-related liver cirrhosis.Methods The cases of hepatitis B virus-related liver cirrhosis combined with PHC and hepatitis B virus-related liver cirrhosis alone were retrospectively analyzed in the Second Affiliated Hospital of Nanchang University.A total of 151 patients with hepatitis B virus-related liver cirrhosis combined with PHC were included in observation group and 136 patients with hepatitis B virus-related liver cirrhosis alone were included in control group.We have down the analysis of risk factors by χ2 test,t test and Logistic regression model.Results The clinical data of the two groups of patients showed statistically significant differences in six indicators,including gender,hepatitis B virus e antibodies(Anti-HBe),liver function grading(Child-Pugh),alpha-fetoprotein(AFP),blood glucose,and blood type,through univariate analysis(P<0.05).The results of multivariate unconditional Logistic regression analysis showed that AFP(OR=5.046,2.716,and 9.373,P<0.01)and Anti-HBe positive(OR=2.305,1.075,and 4.945,P<0.01)were risk factors for primary liver cancer.Conclusion Male shows a more possibility of occurrence of PHC than female.The positive Anti-HBe is the independent risk factors for PHC.The probability of PHC in Child-Pugh stage A is higher than that in Child-Pugh stage B and C.
RESUMO
@#【Objective】To evaluate the feasibility of magnetization transfer(MT)magnetic resonance(MR)imaging for predicting the risk of intestinal fistula in patients with Crohn disease (CD). 【Methods】 The study prospectively enrolled 12 consecutive patients with CD and abdominal MT imaging were performed before elective surgery. The bowel wall MT ratio normalized to skeletal muscle was calculated;region- by- region correlations with the surgical specimen were performed. Histopathologic evaluation of fibrosis was executed by using Masson trichrome. Wilcoxon rank test , Spearman rank correlation, and receiver operating characteristic curve (ROC) were used for statistical analysis.【Results】Among 15 surgical intestinal segments from 12 patients,5 lesions were found with intestinal fistula and of them 12 bowel specimens were obtained. The other 10 intestinal segments were without complications and 23 bowel specimens were enrolled. The intestinal fistula bowel showed a significant higher (P=0.045) normalized MT ratio. ROC analysis revealed an area under the curve of 0.674(95%CI:0.537-0.811)for differentiating intestinal fistula bowel from the non- fistula one. The sensitivity,specificity was 93.3% and 51.1% with a cut-off value of 76.8%,respectively. For the Masson score,significant difference(P=0.012)was found between the complicated intestinal specimens and the non-complicated ones. Additionally, the normalized MT ration was statistical correlated with Masson score (r=0.708,P<0.001).【Conclusion】MT imaging could be a potential method to predict the risk of intestinal fistula in patients with CD.
RESUMO
Objective To investigate the correlation ofchemokine CX3CL1 and the major adverse cardiovascular events (MACCE) within 1 year in patients with ST elevation myocardial infarction (STEMI).Methods Five hundred patients with STEMI were continuously selected from the Department of Emergency,General Hospital of Shenyang Command,and 5ml venous blood was extracted at the time of admission.Plasma CX3CL1 levels were detected by ELISA.The median of CX3CL1 plasma concentration of all selected patients (2108.3pg/ml) was used to assign the patients to low expression group (<2108.3pg/ml) and high expression group (≥ 2108.3pg/ml).The baseline information and the medical history of patients were recorded and followed up by telephone inquiry for 1 year.The endpoint events were defined as MACCE (including cardiac death,heart failure,nonfatal stroke and nonfatal myocardial infarction).Based on the MACCE in 1 year following up,patients were assigned into MACCE group and non-MACCE group.Multivariable Cox regression analysis was performed to analyze the correlation between CX3CL1 level and MACCE in STEMI patients.Results The plasma CX3CL1 level significantly increased in MACCE group compared with that in Non-MACCE group,the difference was statistically significant (P<0.01).Kaplan-Meier and Cox regression analysis showed that the plasma concentration of CX3CL1 was independently associated with the occurrence of MACCE within 1 year (HR=1.124,95%CI:1.032-1.217,P=0.003).Conclusion Chemokine CX3CL1 concentration in plasma is positively correlated with the prognosis of patients with STEMI,and can be used in the prognosis assessment of STEMI patients.
RESUMO
Objective To explore the ursodeoxycholic acid efficacy and safety analysis of nucleoside drugs for HBeAg-positive with high viral load in patients with liver cirrhosis, and its effect on peripheral blood Th17, Treg levels.Methods 80 patients with high viral load B HBeAg-positive from November 2012 to February 2014 were selected and randomly divided into control group and observation group, 40 cases in each group.Patients in control group received conventional treatment, observation group was treated with ursodeoxycholic acid based on the control group, antiviral efficacy and adverse reactions, peripheral blood Th17, Treg levels were compared between two groups.Results After treatment, the ALT, AST, ALB, TBil levels between two groups were significantly lower compared with before treatment(P0.05).After treatment, the Th17 levels elevated, Treg level decreased in two groups, Th17 level in observation group was significantly higher than control group, Treg levels were significantly lower than the control group, Th17/Treg ratio was higher than the control group (P<0.05).Conclusion Ursodeoxycholic acid can significantly improve liver function of patients with HBeAg positive with high viral load, increase the rate of HBeAg seroconversion, inhibit HBV viral replication and delay progression of the disease, and less adverse reactions.It can increase the number of Th17 cells, reduce the number of Treg cells in patients, which may be one of its antiviral mechanism.
RESUMO
Objective:To investigate the mechanism and effects of autophagy on cisplatin(DDP)-induced apoptosis in human gas-tric cancer cell line SGC7901. Methods:Cell proliferation was determined by an MTT assay after the SGC7901 cells were treated with DDP and/or chloroquine. Cell apoptosis was determined by flow cytometry. Autophagy and related protein expressions were detected by Western blot. Autophagy was quantitatively analyzed by fluorescence microscopy after monodansylcadaverine staining was per-formed. Results:The cells were treated with 5 mg/L of DDP for 24 h, the rate of cell apoptosis was (21.07 ± 2.12)%. Autophagy, char-acterized by an increase in the number of autophagic vesicles and LC3-II protein level, was observed in DDP-treated cells. After autoph-agy was inhibited by chloroquine, the rate of cell apoptosis was increased to (30.16 ± 3.54)%. In addition, caspase-3 and P53 protein levels were increased, but Bcl-2 protein was decreased. Conclusion:Autophagy protected human gastric cancer cell line SGC7901 from DDP-induced apoptosis. In addition, the inhibition of autophagy could promote apoptosis. The combined therapy of DDP and chlo-roquine may be a promising therapeutic strategy for gastric cancer.
RESUMO
Objective:To observe the effects of AFP gene silencing by siRNA on the Survivin mRNA of hepatocellular carcino-ma cell line HepG2. Methods:AFP gene expression was downregulated in HepG2 cell by RNAi, and the AFP content in the superna-tant was detected by ELISA. Survivin mRNA level was tested by RT-PCR. MTT was applied to evaluate cell proliferation. Flow cytom-etry was employed to observe cell apoptosis. Results:At 48 h after transfection, AFP expression was almost completely inhibited, cell proliferation activity was decreased by 43.1%, cell apoptosis rate was increased by 24.3%, and the Survivin mRNA expression was re-duced to 22.0%in the experimental group. No evident changes were observed in negative control and blank groups. Conclusion:AFP gene silenced by RNAi induces growth inhibition and apoptosis promotion of hepatocellular carcinoma cell line HepG2. This gene may be associated with the suppression of Survivin mRNA.
RESUMO
The methods for aptamer selection have been modified and developed in recent years. Selection efficiency has been increased due to the improvement in separation of bound and unbound nucleic acids; applicability of aptamers has been improved due to the development of primer-free SELEX and the utilization of short oligonucleotide library; more research requirements have been satisfied due to the functional modifications of aptamer selection methods. All the methodological advances enhance the potential value of aptamers in basic researches and clinical applications.
RESUMO
<p><b>OBJECTIVE</b>To investigate the anti-HBV effect of fusion protein thymosin alpha1-interferon alpha (TA1-IFN) in vitro and to compare its effect with a combination of interferon alpha and thymosin alpha1.</p><p><b>METHODS</b>After 2.2.15 cells were seeded for 24 hours, drugs of five serial concentrations (8000, 4000, 2000, 1000, 500 U/ml) were added to the wells, then the medium was changed every three days. After 2.2.15 cells were treated with drugs for 6 days, the medium was collected. The inhibitory rates on HBsAg and HBeAg were determined using Abbot kit, and the cytotoxicity of different drugs by means of MTT colorimetric assays was also observed.</p><p><b>RESULTS</b>The inhibitory rate of fusion protein on HBsAg, HBeAg was dose-dependent and reached the maximum at 8000 U/ml concentration. In the meantime, the inhibitory rates of fusion protein on HBsAg and HBeAg were 72.2% +/- 0.8% and 60.4% +/- 1.1% respectively, and the cell survival rate was 85.2% +/- 2.0%; In the corresponding concentration, the inhibitory rates of combination thymosin alpha 1 and interferon alpha on HBsAg and HBeAg were 40.0% +/- 0.7%, 34.5% +/- 3.2% respectively. The results showed significant statistical differences between them; cell survival rate 70.0% +/- 1.9%, and the difference of the results was also significant. Cytotoxicity of fusion protein was weaker than a combination of thymosin alpha 1 and interferon alpha.</p><p><b>CONCLUSION</b>Fusion protein TA1-IFN exerted stronger anti-HBV effects in vitro. Its anti-HBV effects in vitro were stronger than the combination of thymosin alpha and interferon alpha, and its cytotoxicity was weaker than the combination of thymosin alpha and interferon alpha. Our studies provided important evidence for clinical research on TA1-IFN, and also brought new hope for hepatitis B therapy.</p>
Assuntos
Humanos , Antivirais , Farmacologia , Vírus da Hepatite B , Interferon-alfa , Genética , Farmacologia , Proteínas Recombinantes de Fusão , Genética , Farmacologia , Timosina , Genética , FarmacologiaRESUMO
<p><b>OBJECTIVE</b>To investigate COX-2 expression in patients with gastric cancer and its relationship with angiogenesis and clinicopathologic features of gastric cancer.</p><p><b>METHODS</b>COX-2 expression and CD34-stained microvessel density (MVD) were detected by immunohistochemical methods in specimens from 96 patients with gastric cancer. The correlations among COX-2 expression, MVD and clinicopathologic features were analyzed.</p><p><b>RESULTS</b>The COX-2 positive rate and MVD in gastric cancer were significantly higher than those in the normal gastric mucosa (80.2% vs. 13.3%; 32.5+/- 8.3 vs. 13.1+/- 2.4, all P< 0.01). The COX-2 positive rate and MVD in the patients with stage III and IV were significantly higher (91.4% and 34.9+/- 8.7 respectively, P< 0.01), than that in the patients with stage I and II. The COX-2 positive rate and MVD in the cases with lymph node metastasis were 87.9% and (35.0+/- 8.5) respectively, higher than those in the cases without lymph node metastasis (P< 0.05). The Spearman rank correlation test showed a significant correlation between COX-2 expression and tumor MVD (r=0.311, P< 0.01).</p><p><b>CONCLUSIONS</b>COX-2 plays an important role in gastric cancer angiogenesis. COX-2 and angiogenesis induced by COX-2 contribute to tumor invasion and lymph node metastasis.</p>
Assuntos
Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Ciclo-Oxigenase 2 , Metabolismo , Imuno-Histoquímica , Estadiamento de Neoplasias , Neovascularização Patológica , Metabolismo , Patologia , Neoplasias Gástricas , Metabolismo , PatologiaRESUMO
<p><b>OBJECTIVE</b>To investigate the effects of different subtypes IFN alpha (IFN alpha2b, IFN alpha2a, and IFN alpha1b) transduction molecular STAT1, STAT2, IFNAR, PKR, and RNase L, and to study the differences of their antiviral effects and to evaluate the key signaling transduction molecules.</p><p><b>METHODS</b>(1) After HepG2 cells were treated with IFN alpha2b, IFN alpha2a, or IFN alpha1b, the mRNA levels of STAT1, STAT2, IFNAR, PKR, and RNase L were detected by RT-PCR. (2) After HepG2 cells were treated with 1000 U/ml IFN alpha2b, IFN alpha2a, or IFN alpha1b, the protein expression levels of STAT1 and IFNAR were examined by Western blot.</p><p><b>RESULTS</b>RT-PCR results: (1) IFNAR, STAT1, and STAT2 mRNA expression levels were slightly higher in the IFN alpha1b group than those in the IFN alpha2b group (P > 0.05). The mRNA expression levels in IFN alpha1b or IFN alpha2b groups were significantly higher than in the IFN alpha2a group (P < 0.05). (2) The PKR mRNA expression showed no significant differences among IFN alpha1b, IFN alpha2b, and IFN alpha2a groups. (3) The RNase L mRNA expression was very weak. We could not compare the differences of the RNase L mRNA levels in different groups by RT-PCR. Western blot results: (1) The IFNAR, and STAT1 protein expressions were greatly up-regulated after IFN alpha induction compared with the untreated group (P < 0.05). (2) The IFNAR, and STAT1 protein expression levels in IFN alpha1b group were slightly higher than the IFN alpha2b group. IFNAR, and STAT1 protein levels of IFN alpha1b or IFN alpha2b group were significantly higher than IFN alpha2a group (P < 0.05).</p><p><b>CONCLUSION</b>STAT1, STAT2, IFNAR mRNA and protein expressions could all be markedly up-regulated after IFN alpha treatment. Effects of IFN alpha1b or IFN alpha2b were greatly stronger than IFN alpha2a. The PKR mRNA expression also was greatly up-regulated after IFN alpha treatment. Expression levels of PKR in IFN alpha1b, IFN alpha2b, and IFN alpha2a groups were all similar. The mRNA level results were consistent with the protein level results. Our results showed that the antiviral activity of IFN alpha1b or IFN alpha2b were stronger than that of IFN alpha2a. The signal transduction molecules STAT1, STAT2, and IFNAR could be regarded as a key index to evaluate antiviral activity of IFN alpha. Further confirmation is still needed to see whether PKR could be regarded as a key index.</p>
Assuntos
Humanos , Antivirais , Farmacologia , Carcinoma Hepatocelular , Virologia , Interferon-alfa , Farmacologia , Neoplasias Hepáticas , Virologia , Proteínas Recombinantes , Fator de Transcrição STAT1 , Genética , Fator de Transcrição STAT2 , Genética , Transdução de Sinais , Células Tumorais CultivadasRESUMO
<p><b>BACKGROUND</b>RNA interference (RNAi) is a powerful tool to silence gene expression post-transcriptionally. Our previous study has demonstrated that small interfering RNAs (siRNAs) have sufficiently inhibited hepatitis B virus (HBV) replication and expression in vitro. In this study we observed the RNAi-mediated inhibitory effects on HBV replication in mice models and accessed the specificity of these effects.</p><p><b>METHODS</b>A mutant RNAi vector (pSI-C mut) with two base pairs different from the original target gene sequence at the RNAi vector (pSI-C) was constructed according to the method described in this study. A mouse model of acute hepatitis B virus infection was established by injecting naked plasmid pHBV1.3 via the tail vein with acute circulatory overload. pSI-C, pSI-C mut and the irrelevant RNAi control plasmid for green fluorescent protein (GFP) gene, pSIGFP were respectively delivered with pHBV1.3 by tail vein injection method. Six days post injection, enzyme-linked immunosorbent assay (ELISA) assay was used to measure the concentration of HBV surface antigen (HBsAg) in mouse serum, immunohistochemical straining method was used to visualize the expression of HBV core protein (HBcAg) in liver tissues, and the transcriptional level of HBV C mRNA in liver tissues was detected by reverse transcriptase PCR (RT-PCR) analysis.</p><p><b>RESULTS</b>Injection of pSI-C exerted magnificent and specific inhibitory effects on the replication and expression of HBV in the murine model. After 6-day post-injection (p.i.), the OD values were shown to be 5.07 +/- 1.07 in infecting group and 0.62 +/- 0.59 in pSI-C group. The concentration of HBsAg in pSI-C group was significantly lower than that in infecting group (P < 0.01). Liver intracellular synthesis of viral core protein was sharply reduced to 0.9% +/- 0.1%, compared with 5.4% +/- 1.2% of positive hepatocytes in infecting group (P < 0.01), and the transcriptional level of HBV C mRNA was greatly reduced by 84.7%. However, the irrelevant RNAi control plasmid (pSIGFP), and the pSI-C mut did not show the same robust inhibitory effects as pSI-C.</p><p><b>CONCLUSION</b>pSI-C exert efficient and specific inhibitory effects on HBV replication and expression in mice models.</p>
Assuntos
Animais , Masculino , Camundongos , Hepatite B , Terapêutica , Virologia , Antígenos do Núcleo do Vírus da Hepatite B , Antígenos de Superfície da Hepatite B , Sangue , Vírus da Hepatite B , Genética , Fisiologia , Camundongos Endogâmicos BALB C , Interferência de RNA , RNA Mensageiro , RNA Interferente Pequeno , Usos Terapêuticos , RNA Viral , Replicação ViralRESUMO
Objective To explore the clinical application of percutaneous endoscopic gastrostomy in gastroin- testinal nutrition among critically ill patients.Methods Twenty-two patients were undertaken percutaneous endo- scopic gastrostomy under the lead of gastroscope.The puncturatio site was located in anterior wall of stomach.Results All the procedures were performed successfully for one time.Intraoperational blood pressure was very steady.At the same time,intraoperational SpO_2 of the patients all exceeced 97%.The bleeding amount and operation time were respectively (3.8?1.9) ml and (15.5?2.3) min.Severe complications such as gastrostoma,gastrocolic fistula, pneumoperitoneum,refluxing or aspiration of gastric juice,inhalant pneumonia didn't occur after the operation.Con- clusion Percutaneous endoscopic gastrostomy was safe and feasible among critically ill patients who needed gastroin- testinal nutrition because of its slight injury,little bleeding and shorter operational time.
RESUMO
<p><b>AIM</b>To separate and purify the anti-myocardial ischemic polysaccharide fraction with a homogenous molecular weight from Ophiopogon japonicus, then study the chemical structure of the parts.</p><p><b>METHODS</b>Crude polysaccharides were prepared by extracting the tube root fraction of Ophiopogon japonicus with water, then precipitation with ethanol. From the crude polysaccharides, the polysaccharide of MDG-1 was separated and purified using ultrafiltration, DEAE Sepharose FF and Sephadex G-25 column chromatography. Its structure was studied by complete hydrolysis, periodate oxidation, Smith degradation, methylation analysis, 1H NMR and 13C NMR analysis etc.</p><p><b>RESULTS AND CONCLUSION</b>MDG-1 was a water-soluble beta-D-fructosan, containing a backbone composed of Fruf (2 --> 1), and a branch of Fruf (2 --> 6) Fruf (2 --> per average 2. 8 of main chain residues. Mn, Mw and Mp of MDG-1 were 3 400, 4 800 and 5 000, respectively. MDG-1 contains trace of Glc, which maybe connect to its reducing terminal. Molar ratio of Fru and Glc is approximately 35: 1.</p>
Assuntos
Metilação , Estrutura Molecular , Peso Molecular , Ophiopogon , Química , Tubérculos , Química , Plantas Medicinais , Química , Polissacarídeos , QuímicaRESUMO
Xylitol, a five-carbon sugar alcohol, has many interesting applications in the food, pharmaceutical, and odontological industries, owing to its high sweetening power, its anticariogenic properties, and its insulin-independent metabolism. The bioconversion of detoxified hemicellulosic hydrolysate to xylitol by microorganisms could be a cheaper alternative to the current chemical process, since it is a simple process, with great specificity and low energy requirements. However, the success of fermentations for xylitol production depends on the productivity of the strain and its tolerance to different toxic or inhibitory compounds existing in the hydrolysates. In addition, a number of culture process parameters proved to have significant effects on xylitol production in hemicellulosic hydrolysate media. One of the most important control variables in this bioconversion is the aeration level, which affects the biochemical pathways in the xylose metabolism. The production of biomass is favored by aerobic conditions, while under anaerobic conditions xylose cannot be assimilated by yeast, whereas xylitol is formed in oxygen-limited incubation conditions. An adapted Candida sp. with enhanced resistance to the inhibitors in the hydrolysate can directly ferment the simply detoxified corn cob hemicellulosic hydrolysate to xylitol. In the present study, the combined effects of shaking speed, C/ N ratio, initial pH, and inoculum level on the fermentation of corn cob hemicellulosic hydrolysate to xylitol by an adapted Candida sp. were investigated using an orthogonal experimental design in flask. As a result, the optimum fermentation conditions were as follows: 180 r/min, a C/N ratio of 50, initial pH 5.5, and an inoculum level of 5% (volume ratio). Moreover, the optimum concentration factor of hydrolysate varied between 3.0 and 3.72 was obtained. Based on these results, in order to evaluate the effect of aeration rate on the fermentation of corn cob hemicellulosic hydrolysate to xylitol in fermentor, batch fermentations were carried out in a 3.7 L stirred fermentor using four different aeration strategies, including three kind of two-stage aeration strategies, which provided relatively high aeration rate in the early stage but reduced it in the later stage, and including a one-stage aeration strategy provided a constant aeration rate. With respect to xylitol yield, the results indicated that two-stage aeration strategy was significantly superior to one-stage aeration strategy. The highest xylitol yield (0.75 g/g) was obtained with oxygen supply strategy C (3.75 L/min for first 24 h, then lowered it to 1.25 L/min, 2.5 L fermentation medium was employed). In this process, without extensive detoxification of hydrolysate, an adapted Candida sp. can efficiently ferment the simply treated corn cob hemicellulosic hydrolysate to xylitol under the optimized fermentation conditions. This work should help the development of an efficient process for producing xylitol from corn cob hemicellulosic hydrolysate on a larger scale by bioconversion.
Assuntos
Aerobiose , Candida tropicalis , Metabolismo , Fermentação , Hidrólise , Polissacarídeos , Metabolismo , Xilitol , Zea mays , MetabolismoRESUMO
<p><b>OBJECTIVE</b>To study the chemical features of CPB-4, a heteropolysaccharide obtained from Cynanchum paniculatum.</p><p><b>METHOD</b>Sugar composition analysis, methylation analysis, partial hydrolysis and carbon-13 nuclear magnetic resonance were used to determine the sugar composition, linkages, main chain, branch chains and branching points.</p><p><b>RESULT</b>CPB-4 is composed of L-arabinose, L-xylose, L-rhamnose and D-galactose in closely molar ratios of 0.8:0.2:0.2:1.0. Its main chain is comprised of 1, 5 linked galactose and side chains are comprised of terminal xylose, terminal arabinose, oligosaccharide of arabinose and oligosaccharide of arabinose, rhamnose and galactose. The branching points are located at C-6 and C-2 of galactose.</p><p><b>CONCLUSION</b>CPB-4 is a new heteropolysaccharide from C. paniculatum.</p>
Assuntos
Arabinose , Cynanchum , Química , Metilação , Raízes de Plantas , Química , Plantas Medicinais , Química , Polissacarídeos , Química , Ramnose , XiloseRESUMO
<p><b>OBJECTIVE</b>To observe the clinical effect of Yufeng Capsule (YFC), a Chinese herbal preparation with function of clearing Heat-toxin in treating premonitory symptoms of apoplexy in middle and old aged patients.</p><p><b>METHODS</b>One hundred and fourteen patients with premonitory symptoms of apoplexy were treated with YFC and compared with 57 patients treated with Venoruton for control. The changes of clinical symptoms, anti-oxidation capability, blood lipid, blood sugar and hemorrheological parameters were observed.</p><p><b>RESULTS</b>(1) The therapeutic effect in the YFC group was cured in 42 cases (36.84%), markedly effective in 38 (33.33%), effective in 28 (24.58%) and the total effective rate was 94.74%, while in the control group, the corresponding numbers were 9 (15.79%), 8(14.04%), 20(35.09%) and 64.91% respectively, the difference between the two groups in cure rate, markedly effective rate and total effective rate was significant (P < 0.05); (2) The whole blood viscosity, plasma viscosity, hemagglutination index and red blood cell deformity index in the YFC group were significantly improved after treatment (P < 0.01) and the improvement was better than those in the control group (P < 0.05 or P < 0.01); (3) Levels of serum malonyldialdehyde (MDA), superoxide dismutase (SOD), blood lipids and glucose were markedly improved in the YFC group (P < 0.05) after treatment, and showed a significant difference to those in the control group (P < 0.05).</p><p><b>CONCLUSION</b>YFC has obvious effect in treating premonitory symptoms of apoplexy patients, it could markedly improve the hemorrheologic parameters, regulate blood lipids and blood glucose metabolism, and strengthen the anti-oxidation capability of patients.</p>
Assuntos
Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Viscosidade Sanguínea , Cápsulas , Medicamentos de Ervas Chinesas , Usos Terapêuticos , Deformação Eritrocítica , Ataque Isquêmico Transitório , Sangue , Tratamento Farmacológico , Fitoterapia , Superóxido Dismutase , SangueRESUMO
<p><b>AIM</b>To study the chemical structure of SC3, an acidic polysaccharide from Salvia chinesis.</p><p><b>METHODS</b>Based on chemical (including sugar composition analysis, methylation analysis, uronic acid reduction and partial acid hydrolysis) and spectral analysis (IR, NMR, ESI-MS), the structural characterization of SC3 was investigated.</p><p><b>RESULTS</b>SC3 was composed Rha, Ara, Gal and GalA, with its mean molecular weight of 7.7 x 10(4). By means of methylation analysis, partial acid hydrolysis, NMR and ESI-MS spectrum, the linkages and sequence information of SC3 were obtained.</p><p><b>CONCLUSION</b>SC3 is an complicated acidic polysaccharide, obtained for the first time from the plant.</p>