Objective To investigate the effects of compound Danshen injection on stress-induced gastric mucosal damage and its mechanism.Methods Sprague Dawley rats were used to establish immersion restraint cold stress model.50 SD rats were randomly divided into five groups(n=10 per group):① the normal control group; ② the stress model group; ③ the group treated with low dose of compound Danshen injection(50 mg/kg) ; ④ the group treated with medial dose of compound Danshen injection(100 mg/kg) ; ⑤the group treated with high dose of compound Danshen injection (200 mg/kg).The gastric mucosal ulcer index (UI),the level of malondialdehyde (MDA) in gastric mucosa,the activity of superoxide dismutase (SOD),and plasma intedeukin-1beta (IL-1β)content were detected.Results Compared with the normal control group [(0.7± 0.4) mm,(0.25 ± 0.03)nmol/mg,and (246.5 ± 45.4)Nu/mg],the stress model group exhibited a markedly increase in gastric mucosal UI[(28.4±4.5)mm](P＜0.01) and MDA level [(0.60±0.08)nmol/mg](P＜0.01) and a decrease in the activity of gastric mucosal SOD [(122.5 ±14.2) Nu/mg] (P＜0.01).In addition,an elevated level of plasma IL-1β[(31.6±8.4) pg/ml vs (8.5±3.1) pg/ml] (P＜0.01) was observed in the stress model group.Pretreatment with compound Danshen injection dose-dependently attenuated the gastric mucosal damage,characterized by a markedly decrease in gastric mucosal UI [(22.8 ± 3.7)mm、(12.2 ±3.5)mm,(6.2 ± 1.6)mm] and MDA level [(0.52 ± 0.07)nmol/mg,(0.32 ± 0.06)nmol/mg,(0.28 ±0.03)nmol/mg] and an increase in the activity of gastric mucosal SOD[(135.2± 13.6)Nu/mg,(220.7±33.5)Nu/mg,(251.2±23.7)Nu/mg] (P＜0.01).Meanwhile,compound Danshen injection reduced the content of plasma IL-1β[(27.2±7.5)pg/ml,(13.5±5.3)pg/ml,(9.3±4.4)pg/ml] (P＜0.01).Conclusion Compound Danshen injection exhibits preventive protection on the stress-induced gastric mucosal damage by water immersion restraint cold stress in SD rats,the mechanism of which might be linked to its inhibition of gastric mucosal oxidation stress and the reduced release of inflammatory mediator IL-1β.

Objective To search for the method used in enriching caffeates in Cirsium setosum by macroporous adsorption resin, 23 types of macroporous adsorption resin were optimized, which could provide the industrial production of caffeates with the theory basis. Methods The adsorption and elution ratios, product purity and yield, as total indices, were comprehensively evaluatued by 23 types of macroporous adsorption resin in enriching the extracts in C. setosum. Results The product purity and yield of caffeates by the HPD-100 type macroporous adsorption resin were the highest and up to 52.2% and 87.6%. Conclusion The HPD-100 type macroporous adsorption resin shows better comprehensive adsorption property. It is available for the enrichment of caffeates in C. setosum.

Objective To evaluate efficacy and mechanism of Anluohuaxian pilule combined with interferon-γ in the treatment of schistosomal liver fibrosis. To preliminarily study on the relationship of pigment deposition in liver and schistosomal liver fibrosis. Methods Thirty Kunming mice were divided into the normal control group, the infection control group and the combination of Anluohuaxian pilule and Interferon-γ treated group. Schistosomal liver fibrosis model was established by infection with 40 Schistosoma japonicum cercariae. The treated group was treated by combination of Anluohuaxian pilule and Interferon-γ for 8 weeks. The changes of pigment deposition and hepatic egg granuloma in Schistosoma japonicum infected mice were observed. Expressions of collagen Ⅰ and Ⅲ were detected by immunohistochemistry. Transforming growth factor (TGF)-β1 was detected by fluorescent polymerase chain reaetion(PCR). Histopathology and computer image analysis were applied to evaluate the change in the liver tissues. Results The amount of pigment deposition in liver was related to the expression of TGF-β1 mRNA (correlation coefficient = 0. 8). Compared to the infection control group, combination of Anluohuaxian pilule and Interferon-γ can lessen hepatic fibrosis(P<0.05). The combination therapy can also make pigment deposition less and hepatic granuloma smaller than the infection control group(P<0. 05). Conclusions Pigment deposition in liver is related to the expression of TGF-β 1. Combination of Anluohuaxian pilule and Interferon-γ can lessen hepatic fibrosis in mice infected with Schistosoma japonicum. It's one mechanism to of the combination therapy down-regulate the expression of collagen Ⅰ, Ⅲ and TGF-β 1.

Differential gene expression profiles in Balb/cJ mouse model of acute hepatic failure infected with MHV-3 virus intervened by anti-hepatic failure compound (AHFC) and the changes of cytokines regulated by genes were investigated. The Balb/cj mice were divided into AHFC-intervened group and control group randomly. Acute hepatic failure model of Balb/cJ mice infected with MHV-3 virus was established. The survival rate in the two groups was observed. It was found that the survival rate in the AHFC-intervened group and control group was 90% and 50% respectively 48 h after intraperitoneal injection of MHV-3 (P<0.05). Before and after the experiment, the cytokines in peripheral blood of the survival mice were determined, and RNA was extracted from survival mouse liver tissue for the analysis of the differential gene expression by a 36 kb mouse oligonucleotide DNA array. In all the genes of microarray there were 332 genes expressed differently in the two groups, in which 234 genes were up-regulated and 78 genes down-regulated. Through clustering analysis, the differential expression of immune related genes, including TNF receptor superfamily, Kctd9, Bcl-2, Fgl2, IL-8, IL-6, IFN-gamma, TNF-alpha etc. might be related with the curative effectiveness of AHFC. It was suggested that AHFC can balance the immune state of mouse model of acute hepatic failure infected with MHV-3 virus mainly through regulating the expression of immune related genes, decrease the immune damage and inhibit liver cell apoptosis of mouse acute hepatic failure model obviously so as to increase the survival rate of mouse models of acute hepatic failure.
Coronavirus Infections/*complications ; Drugs, Chinese Herbal/therapeutic use ; Gene Expression Profiling ; Hepatitis, Viral, Animal/complications ; Liver Failure, Acute/*drug therapy ; Liver Failure, Acute/etiology ; Liver Failure, Acute/genetics ; Mice, Inbred BALB C ; Murine hepatitis virus ; Phytotherapy ; Random Allocation

Objective:To investigate the regulatory effects of sodium butyrate on p53 target genes(p21waf1,bax,and gadd45)in HT-29 colorectal cancer cells and the related mechanisms.Methods:HT-29 cells were cultured in the absence or presence of sodium butyrate.The cell proliferation and cell cycle were studied by MTT and FCM,respectively.Apoptosis was assessed by observing cell morphology,percentage of sub-G_ 1 cells and AnnexinV-FITC.The effects of sodium butyrate on transcription of p21waf1,bax and gadd45 were analyzed by RT-PCR and Western blot.Results:Sodium butyrate inhibited proliferation and induced apoptosis of HT-29 cells in a time-and dose-dependent manner,and it blocked HT-29 cell at G_ 1 phase.Sodium butyrate stimulated p21waf1 and bax expression both at mRNA and protein level in HT-29 cells,but had little effect on the transcription of gadd45.Conclusion:Sodium butyrate can inhibit proliferation and induce apoptosis of HT-29 cells,which might be through up-regulating p21waf1 and bax expression both at mRNA and protein levels.

Objective To study the effect of imbalance of proliferation and apoptosis in the development of colorectal carcinoma(CRC),and the molecular mechanism of the dynamic change.Methods ORC was(induced) with dimethylhydrazine(DMH) in male mice of Kimming strain.The mice were killed in batches in the 12th,18th and 24th weeks of carcinoma induction.The distribution and extent of proliferation and(apoptosis) of the colorectal mucosa,at various intervals,were dynamically observed.Three genes,p21waf1,Bax and Gadd45 were analyzed by RT-PCR,immunohistochemistry and Western blot.Results During the course of carcinoma induction,the mucosas of the model mice showed sequential changes of atypital(hyperplasia),adenoma,and carcinoma.Compared with control group,the PCNA expression of the model group mice was significantly higher(P

Ureaplasma urealyticum (UU) is closely related to human diseases including non-gonococcal urethritis (NGU), infertility, premature membranes and neonatal bronchopulmonary dysplasia. Researches on the pathogenicity of UU have become a hot topic in recent years, and suggest that many potential pathogenicity genes or putative pathogenicity islands are involved in its virulence. Moreover, the biovar and serum types of UU, the infection concentration and the state of the host immune system are also important to determine whether UU can cause human disease or not. In this article the recent progress of researches in the pathogenicity of UU is reviewed.
Humans ; Infertility ; microbiology ; Serotyping ; Ureaplasma urealyticum ; pathogenicity ; Urethritis ; microbiology

OBJECTIVETo study the chemical constituents from the rhizome of Paris axialis.

METHODThe compounds were isolated by column chromatography with silica gel and purified by Sephadex LH-20 column chromatography and preparative RP-HPLC. The structures were identified by means of spectroscopic methods.

RESULTFourteen compounds were isolated from the EtOAc extract and the n-BuOH extract of P. axialis. Their structures were identified as daucosterol (1), stigmasterol-3-O-beta-D-glycopyranoside (2), beta-ecdysterone (3), pennogenin-3-O-alpha-L-arabinofuranosyl (1 --> 4) -[alpha-L -rhamnopyranosyl (1 --> 2)] -beta-D-glycopyranoside (4), diosgenin-3-O-alpha-L- rhamnopy-ranosyl (1 --> 4) -alpha-L-rhamnopyranosyl (1 --> 4) [alpha-L-rhamnopyranosyl (1 --> 2)] -beta-D-glycopyranoside (5), kaempferol (6), rutin (7), myrincitrin (8), 4, 2', 4'-trihydroxychalcone (9), isorhamnetin-3-O-beta-D- glycopyranoside (10), isorhamnetin-3-O-alpha-L-rhamnopyranosyl (1 --> 2) -beta-D-glycopyranoside (11), isorhamnetin-3-O-beta-D-glucpyranosyl (1 --> 6) -beta-D-glycopyranoside (12), kayaflavone (13), amentoflavone (14).

CONCLUSIONCompounds 1-3 and 6-14 are isolated from P. axialis for the first time; and compounds 7-10, 13, 14 are isolated from the genus Paris for the first time.

Flavones ; analysis ; isolation & purification ; Liliaceae ; chemistry ; Plant Extracts ; analysis ; isolation & purification ; Rhizome ; chemistry ; Steroids ; analysis ; isolation & purification

OBJECTIVEOur objective is to build a model that explains the association between the exposure to trace elements in the soil and the risk of neural tube defects.

METHODSWe built a function with different parameters to describe the effects of trace elements on neural tube defects. The association between neural tube defects and trace element levels was transformed into an optimization problem using the maximum likelihood method.

RESULTSTin, lead, nickel, iron, copper, and aluminum had typical layered effects (dosage effects) on the prevalence of neural tube defects. Arsenic, selenium, zinc, strontium, and vanadium had no effect, and molybdenum had one threshold value that affected the prevalence of birth defects.

CONCLUSIONAs an exploratory research work, our model can be used to determine the direction of the effect of the trace element content of cultivated soil on the risk of neural tube defects, which shows the clues by the dosage effect of their toxicological characteristics. Based on our findings, future biogeochemical research should focus on the direct effects of trace elements on human health.

China ; epidemiology ; Dose-Response Relationship, Drug ; Environmental Exposure ; Female ; Humans ; Metals ; chemistry ; toxicity ; Models, Biological ; Neural Tube Defects ; chemically induced ; epidemiology ; Pregnancy ; Prevalence ; Soil Pollutants ; chemistry ; toxicity ; Trace Elements ; chemistry ; toxicity

Objective To investigate the dynamical changes of serum SOCS-3 in patients with acute pancreatitis (AP) and discuss the potential clinical significance.Methods Seventy-five patients with AP admitted in Yuhang District Second People's Hospital of Hangzhou City from February 2015 to December 2016 were selected,who were divided into 2 groups according to disease severity:40 cases in mild AP (MAP) group and 35 cases in moderate and severe AP (MSAP + SAP) group.The levels of serum SOCS-3,IL-6 and TNF-α were determined by enzyme linked immunosorbent assay (ELISA) on the 1,3,5 and 7 day after admission.Thirty healthy people who were age and gender matched were included in the normal control group.Results The levels of serum SOCS-3,IL-6 and TNF-α in AP patients on the 1 day after admission were significantly increased than that in the control group (P ＜ 0.01 or P ＜ 0.05),which were gradually increased with the time,peaked on the 5 day and then started to decrease on 7 day after admission which was still higher than that on the 1 day after admission.The levels of serum SOCS-3,IL-6 and TNF-α in MSAP + SAP group were significantly higher than that in MAP group (P ＜0.01),and there were significant differences (F =112.80,P =0.001;F =170.21,P =0.000;F =112.82,P =0.000).Significant differences were also found among different time points between two groups (F =258.38,P =0.000;F =4.82,P =0.000;F =5.52,P =0.001).Additionally,the significantly positive correlations of SOCS-3 with IL-6 and TNF-α were found (r=0.785,r=0.828,both P＜0.01).Conclusions SOCS-3 may participate in early excessive inflammatory reactions in AP.Dynamic detection of SOCS-3 may be helpful for AP clinical classification and prognosis evaluation.