Objective To investigate the effect of bifidobacteria on dextran sulphate sodium(DSS)- induced acute ulcerative colitis in mice.Methods Thirty BALB/C mice were randomly divided into nor- mal control group (n=10),0501 strain group (n=10) and c122 strain group (n=10).Fifty BALB/ C mice received 5% dextran sulphate sodium(DSS) for 7 days to induce ulcerative colitis.The mice were then divided to model group,negative control group(perfused with 0.9 NaCl solution ),positive control group(perfused with SASP of 20 mg/ml),DSS + 0501 strain group(perfused with 1?10~9 CFU/ml bifidobacteria 0501 strain solution and DSS + c122 strain group (perfused with 1?10~9 CFU/ml bifidobacteria c122 strain solution).All mice were sacrificed 9 days later.The colon specimens were measure by histoehemical staining with H-E.The expressions of interleukin-10 (IL-10) and its protein were detected by RT-PCR and immunohistochemistry respectively.Results The degree of colon inflam- mation in mice both in DSS+ 0501 strain and DSS+ c122 strain groups were aggravated and expressions of IL-10 mRNA and protein were reduced compared to model group.No colon inflammation was found in 0501 strain and c122 strain groups.Conclusion Some strain of bifidobaeteria may aggravate colon in- flammation in mice when mucosal harrier is destroyed.

Objective To explore the liver pathology from live related liver transplatation(LRLT) of Wilson′s disease(WD) in children,and evaluatethe indication of LRLT.Methods The sample of this study,including the donater and patient,came from the LRLT. It was observed with HE,MASSON,Timm′s and Rubeanic staining.Results With HE and MASSON stainning,hepatocyte showed degeneration,fiber hyperplasic and false lobule formed;Timm′s and Rubeanic stainning showed typical black deposit of granules and conglomerations.Liver pathology revealed that liver cirrhosis appeared,and it was diffrentent from Child Pugh.Conclusions It is of great significance that the liver pathology is useful for the treatment of WD.If liver pathology supportes,the indication of LRLT can be measurably broadened.

In this study, plate transparent circle by Davis method was introduce firstly screening ?-Rhamnosidase high-yield strain. The spore-sprouted Aspergillus niger 8-hour were mutagenized by ethyl methane sulphonate and pre-screened via transparent circle. 11% mutants yield 40% higher of ?-rhamnosidase than the original strain. A high-yield strain, T-226 with the highest ?-rhamnosidase activity of 373.4 U/mL was finally selected from these potential high-yield mutants after rescreened by shake flask fermentation twice. When the T-226 strain was fermented in 5 L bioreactor, the enzyme activity could reach to 631.9 U/mL after 84 h. Thus, the established screening method is highly efficient to isolate ?-rhamnosidase high-yield mutant of A. niger.

Objective Evaluate the effects of venous-arterial modified ultrafiltration on hemodynamics compared to arterial-venous in children undergoing cardiopulmonary bypass (CPB) for repair of congenital heart defects. Methods Forty patients underwent MUF randomly divided into two groups,group V-A MUF (n =20) and group A-V MUF (n =20) for 10 min after CPB. They were studied before CPB, after CPB, 10 min after CPB, and 30 min after CPB. Haemodynamic data including heart rate, blood pressure, central venous pressure and hematocrit were recorded. Transoesophaegeal echocardiography determined left ventricular posterior wall thickness in end-systole ( LVPWs) and end-diastole (LVPWd) , end diastolic volume (EDV) , end systolic volume (ESV) and ejection fraction (EF) were measured and compared in two groups. Results Patients in V-A MUF maintained better systolic arterial blood pressure at 10 min and 30 min compared with 0 min values after CPB. A significant decrease in EF were observed in both groups immediately after CPB ( P < 0.05 ). Significant increase in EF was observed at 10 min (60% ) and 30 min (46% ) after CPB compared with 0 min value after bypass in V-A MUF (P <0.001 ). In A-V MUF, no such increase in EF was observed. EF were significantly higher at 10 min and 30 min in V-A MUF as compared with A-V MUF (P < 0. 001). There was also significant improvement in posterior wall thickness in V-A MUF (P <0.05). Haematocrit values were not different in duration of postoperative between two groups. Conclusion Veno-arterial modified ultrafiltration is a safe and effective method of improving hemodynamics in children following cardiac surgery.

Six flavonol glycosides were isolated and calibrated from Ginkgo biloba extract, and then used to calibrate the content in 2 baiches of G. biloba reference extract, so was rutin. RSD values of rutin, kaempferol-3-O-rutinoside, kaempferol-3-O-rhamnoside-2-glu- coside, quercetin-3-O-rhamnop-yranosyl-2-O-(6-O-p-coumaroyl)-glucoside, kaempferol-3-O-rhamnopyranosyl-2-O-(6-O-p-coum-aroyl) - glucoside were around 1.1%-4.6%, nevertheless, RSD values of quercetin-3-O-glucoside and isorhamnetin-3-O-rutinoside were more than 5%. According to the results, the reference extract of G. biloba can be used as the substitute to determine rutin, kaempferol-3-O- rutinoside, kaempferol-3-O-rhamnoside-2-glucoside, quercetin-3-O-rhamnopyranosyl-2-O-(6-O-p-coumaroyl)-glucoside and kaempferol-3-0-rhamnopyranosyl-2-O-(6-O-p-coumaroyl)-glucoside instead of corresponding reference substances. So reference extract in place of single component reference in assay is feasible.
Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Flavonols ; chemistry ; isolation & purification ; Ginkgo biloba ; chemistry ; Glucosides ; chemistry ; isolation & purification ; Molecular Structure ; Spectrometry, Mass, Electrospray Ionization

OBJECTIVE: To ivestigate the incidence of neuroendocrine (NE) cells and hormone products in adenocarcinomas and to explore its clinicopathological significance. METHODS: 356 cases of adenocarcinomas were studied by immunocytochemistry with antibodies for chromorgranin and polypeptide hormones. RESULTS: The prevalence of NE cells and hormone products were detected in 54 of 130(41.5%) and 32 of 54 (59.3%) colorectal carcinomas, 38 of 96(39.6%) and 14 of 38 (36.8%) gastric cancer, 8 of 21(38.1%) and 4 of 8(50.0%) prostatic carcinomas, 17 of 81(21.0%) and 3 of 17(17.6%) breast cancer, 5 of 28(17.9%) and 3 of 5 (60.0%) pancreatic carcinomas, respectively. Among carcinomas of large intestine, pancreas and breast, the incidence of NE cells in well differentiated ones was higher than that in the poorly differentiation. By contrast, NE cells were found more frequently in the letter than in the former in gastric carcinoma. The cases with NE cell (++) or polypeptide positive cells exhibited higher 5-year survival rate than those without NE cells in colorectal carcinomas. CONCLUSION: The presence of neuroendocrine cells and the hormone products may be close correlated with the degree of tumore cell differentiation. For colorectal carcinoms, there is a close correlation of the presence of NE cells and the hormone products with the tumor staging and prognosis.

OBJECTIVETo identify the variety of the sea cucumber sold in market.

METHODFigure and bone pieces observed for the microstructures.

RESULT8 varieties were identified as Lessonothurea Deichmann, Thymiosycia Pearson, Microthele Brandt and Metriatyla Rowe of Holothuria, Bohadschia, Stichopus and Thelenota.

CONCLUSIONThe bone pieces in ora, anus, back, abdomen and tentacle of sea cucumber are different. They are the important bases to identify sea cucumber.

Background The proliferation and migration of vascular endothelial cells is a primary link during angiogenesis.Studies showed that heat shock protein B6 (HspB6) promotes the secretion of multiple angiogenesis-related factors and therefore leads to neovascularization.Understanding the effects of neutralizing HspB6 antibody on the biological behavior of human choroidal vascular endothelial cells has an important significance in the target treatment of choroidal neovacularization diseases.Objective This study was to address the role and mechanism of neutralizing HspB6 antibody in tube formation of human choroidal vascular endothelial cells.Methods Human choroidal vascular endothelial cell line was normally cultured and harvested for total RNA extraction.Expressions of HspB6 mRNA and protein in human choroidal vascular endothelial cells were detected by reverse transcription PCR (RT-PCR) and flow cytometry (FCM).The cells were seeded on 96-well plate covered with matrigel at the density of 2×104/hole.Then the neutralizing HspB6 antibody at the concentration of 100 μg/Land 500 μg/L was added into the medium respectively,and the control cells were set without the addition of HspB6 antibody.The number of capillary tubes was calculated 12 hours after culture by three-dimensional matrigel assay.In addition,0,50,100,500 μg/L of neutralizing HspB6 antibody were added into the cell medium separately for 24hours,cell counting kit-8 (CCK-8) method was employed to assay the inhibitory rate(IR) of the cells.Transwell test was used to count the cell number across chamber membrane for the evaluation of migration ability of the cells.The apoptosis of the cells was assayed by FCM.Results Both HspB6 mRNA and protein were expressed on human choroidal vascular endothelial cells.The number of capillary tube formation of human choroidal vascular endothelial cells was (67.25±5.75),(60.39±6.41) and (39.76±10.73) /field in the 0,100 and 500 μg/L neutralizing HspB6 antibody groups,with significant difference among them (F =10.210,P =0.012),and the tube number was significantly less in the 500 μg/L neutralizing HspB6 antibody group compared with 0 μg/L neutralizing HspB6 group (P =0.005).The IR of neutralizing HspB6 antibody to the cellular proliferation and migration was enhanced with the increases of concentration and time lapse(Fconcentration =7.485,P =0.002 ; Ftime =16.684,P =0.001).The number of the cells through Transwell chamber membrane was 14.0 ± 2.5,11.1 ± 0.8,6.6 ± 0.1,6.7 ± 0.2 in the 0,50,100,500 μg/L neutralizing HspB6 antibody group respectively,and that in the 100 μg/L and 500 μg/L neutralizing HspB6 antibody group was lessened in comparison with the 0 μg/L neutralizing HspB6 antibody group(both at P=0.000).The apoptosis rate of the cells was (22.73 ± 2.53)％ in the neutralizing HspB6 antibody group,which was significantly lower than (13.33±2.08) ％ of the control group (t=4.967,P=0.008).Conclusions Neutralizing HspB6 antibody inhibits capillary tube formation of human choroidal endothelial cells in vitro in dose-and timedependent manner,probably through suppressing the proliferation and migration and promoting the apoptosis of choroidal endothelial cells.

Background Leber hereditary optic neuropathy (LHON)is a mitochondrial DNA (mtDNA)hereditary disease,so it is significant to understand the influence of DNA mutation on the occurrence of LHON.Objective This survey was to evaluate the role of mtDNA mutation in the development of LHON.Methods This survey study was approved by the Ethic Committee of Wuhan General Hospital of Guangzhou Military Command and written informed consent was obtained from each subject before the relative medial examination.Seventy-two matrilineal relatives from a family with LHON were collected for a pedigree analysis and mutation screening.Regular eye examination was performed on 11 patients,13 mutant gene carriers and 49 individuals with normal phenotype,and the degree of visual damage was graded as follows: ＞0.3 was normal,0.1-0.3 was mild damage,＜0.05-0.1 was moderate damage,＜0.02-0.05 was severe damage and ＜0.01 was very severe damage.Clinical characteristics of LHON was evaluated.The periphery blood sample of 2-4 ml was collected from individuals to separate the mononuclear cells,and the mtDNA was extracted by modified high salt method.MtDNA was amplified by PCR and the mutation loci was sequenced.Results PCR amplification product sequencing of mutant gene showed that both G11778A and T14502C mutations were detected in 24 of 72 matrilineal relatives,but only 11 of 24 carriers developed LHON.No abnormal clinical findings were seen in the 13 carriers,showing a less 50％ penetrance in this family.There was no G11778A or/and T14502C mutation in the normal phenotype individuals of this family.The onset age for vision impairment in 11 affected matrilineal relatives varied from 8 to 50 years old,with the mean age of 24.36 years old,showing a significantly lower age than that of the 13 carriers (5-72 years old,mean 40.38 years old) (t =2.102,P=0.049).Conclusions This study suggests that the Gl1778A and T14502C mutation in mitochondrial DNA is one of causes in the development of LHON.The primary G11778A mutation together with T14502C mutation in mtDNA is a factor for the occurrence of LHON,hut it is not sufficient to the development of LHON.An effective “second hit” process will play an inducing role for LHON.

Objective To invesgate the safety and efficacy of the second generation biodegradable polymer Cobalt-Chromium sirolimus-eluting stent (EXCEL2) stent in diabetic patients by a subgroup analysis of of the CREDITⅡand CREDIT Ⅲ trials. Methods All patients who were implanted with the EXCEL2 stent were enrolled in the CREDITⅡand CREDIT Ⅲ trials. The primary endpoint was target lesion failure at 24-month, defi ned as a composite of cardiac death, target vessel myocardial infarction (TV-MI) and target lesion revascularization(TLR). The secondary endpoint was endpoints including all-cause death, all myocardial infarction (MI) or any revascularization.Results A total of 828 patients were included from the patients who were implanted with the EXCEL2 stent in the CREDIT II and CREDIT Ⅲ trials. 24-month follow-up rate was 99.5%. There was no significant difference in the primary endpoint (P>0.05) and event rates of the secondary endpoints(P>0.05) between the diabetic and non-diabetic group, which included all-cause death[diabetics (2.5%)vs.non-diabetics(1.4%),P>0.05],myocardial infarction(MI)(7.5% vs.5.0%,P>0.05),all from of revascularization(5.0% vs.3.9%,P>0.05),and stent thrombosis(0.6% vs.0.4%,P>0.05).Conclusions EXCEL 2 stent met the objective performance goal on effcacy and safety, which can reduce make stent restenosis, target vessel revascularization ,with 160 diabetic cases among them, and stent thrombosis in diabetic patients.