Objective:To study the correlation between responses to Hepatitis B and HLA DRB1*07 DRB1*04 DRB1*1001. DQB1*0401 genes in Han population in Ningbo.Methods:A total of 240 Han people living in Ningbo received the routine vaccination of recombinant hepatitis B vaccine.The serum levels of anti-HBs antibody were examined and the subjects were divided into 2 groups according to tile results:negative responses group(n=120.anti-HBs D

OBJECTIVETo study the role of nuclear factor (NF)-kappaB pathway with p38MAPK in Curcuma wenyujin diterpenoid compound C (CDCC) fighting against inflammation and inducing gastric cancer cell apoptosis by stimulating gastric cell SGC7901 with tumor necrosis factor-alpha (TNF-alpha).

METHODSHuman umbilical vein endothelial cells (HUVECs) and human gastric cancer SGC-7901 cells were in vitro acted by CDCC in different concentrations at different time points. Their growth inhibition ratios were measured by MTT assay. The apoptosis rate of gastric cancer cells was detected by Annexin V-FITC/PI double staining. Nuclear translocation of p65 was detected by cell immunofluorescence. Expression levels of p38MAPK/P-p38MAPK, p65/P-p65, and Caspase 3/P-Caspase 3 were measured by Western blot.

RESULTSCDCC had significant inhibitory effect on the proliferation of SGC-7901. It also could effectively induce the apoptosis of gastric cancer cell SGC-7901. It also could reduce nuclear translocation of p65 in gastric cancer cell SGC-7901. Results of Western blot indicated that expression levels of p38MAPK and p65 were reduced and the expression level of Caspase-3 was elevated along with increased concentrations of CDCC (P<0.05).

CONCLUSIONApoptosis executive protein Caspase 3 activated by regulating p65 via p38MAPK might be one of possible mechanisms for CDCC fighting against inflammation and gastric cancer.

Apoptosis ; Caspase 3 ; Cell Line, Tumor ; Curcuma ; Diterpenes ; Drugs, Chinese Herbal ; therapeutic use ; Humans ; NF-kappa B ; Stomach Neoplasms ; drug therapy ; Tumor Necrosis Factor-alpha

In order to make students have integrative qualities and reform the shortage of former teaching methods in the food microbiology experiment,a new experiment teaching system was established,introducina the integrative and innovative experiment to the students gradually.The reformation of experiment in food microbiology has trained the students well and improved their special skills.Most important of all,it can offer them a chance to realize their own ideas.The students can design an innovative and integrative experiment to carry out their originalities.Good effects have been made since this system is very helpful to improve their consciousness of innovation and integrative abilities in doing experiments.

OBJECTIVETo study the absorption kinetics of dehydrocavidine in rats' stomachs and intestines.

METHODThe absorption kinetics was investigated by the in situ perfusion in rats and the concentrations of drug perfusion solutions were determined by HPLC.

RESULTThe hourly absorption percentages of dehydrocavidine in stomach, small intestine were 8.88%, 2.08%, respectively. Although the absorption rate constants of dehydrocavidine in duodenum and jejunum are more than that in ileum and colon, there is no significance difference between them. The absorption rate constants kept at the same level when the concentrations of drug perfusion solution are at middle and high level. The increase of the pH of perfusion solution didnt significantly affect the absorption rate constants of the drug.

CONCLUSIONDehydrocavidine was absorbed poorly at stomach and all segments of intestine in rats, but the absorptions in stomach are better than intestine. Dehydrocavidine was absorbed mainly via passive transport mechanism between middle and high concentration levels.

Animals ; Berberine Alkaloids ; pharmacokinetics ; Colon ; metabolism ; Duodenum ; metabolism ; Hydrogen-Ion Concentration ; Ileum ; metabolism ; Intestines ; metabolism ; Jejunum ; metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Stomach ; metabolism

Objective:To investigate frequencies of microsatellite instability(MSI)and loss of heterozygosity(LOH)in renal ceil carcinoma(RCC),and to discuss the relationship of clinicopathological characteristics of RCC with MSI and LOH. Methods:Twelve microsatellite markers located at chromosomes 3p,9p and 14q were selected to investigate microsatellite alterations(MSI and LOH)in 31 RCC specimens and their paired metastasis specimens by polymerase chain reaction- polyacrylamide gel elect rophoresis-ethylene dibromide(PCR-PAGE-EB)staining and sequencing.Results:The frequency of MSI could reached 61.3% and that of LOH could reach 54.8%.The highest frequency of MSI was at locus of D9S168(32.3%);the highest frequency of LOH was at locus of D3S1289(21.4%).No correlation was found between MSI or LOH and the patients' age,sex,pathology type and metastastis,except that MSI was correlated with TNM stage of RCC(P

OBJECTIVETo observe the effect of Salvia miltiorrhiza Injection (SMI) and Shengmai Injection (SI) on liver function and fibrosis related indexes in patients with chronic hepatitis B.

METHODSSeventy-nine chronic hepatitis B patients were randomly divided into the SMI group (n=47) and the SI group (n=32), they were treated with SMI and SI respectively on the basis of conventional treatment. The therapeutic course was 35 days for both groups. The changes of main symptoms and physical signs were observed, and indexes of liver function and fibrosis including serum hyaluronidase, laminin, III type precollagen (PC-III) and IV type collagen (IV-C) were investigated before and after treatment.

RESULTSSymptoms, physical signs and liver functions were improved obviously in both SMI and SI groups, SI showed better effect than SMI (P < 0.05). The four liver fibrosis indexes declined significantly in the SMI group after treatment (P < 0.05), but no obvious change of those was found in the SI group (P > 0.05), showing significant difference between the two groups (P < 0.05). Conclusion SMI is effective in improving liver function and inhibiting liver fibrosis, and SI has even better effect in improving liver function than SMI, though it shows no anti-liver fibrosis effect.

Adult ; Collagen Type IV ; blood ; Drug Combinations ; Drug Therapy, Combination ; Drugs, Chinese Herbal ; administration & dosage ; therapeutic use ; Female ; Hepatitis B, Chronic ; blood ; drug therapy ; Humans ; Hyaluronoglucosaminidase ; blood ; Injections, Intravenous ; Laminin ; blood ; Liver Cirrhosis ; prevention & control ; Male ; Middle Aged ; Phytotherapy ; Salvia miltiorrhiza ; Treatment Outcome

Objective To study the cytotoxicity against brain microvessel endothelial cells and blood compatibility in rats of OX26 conjugated endomorphin (EM) loaded hyperbranched polyglycerols-poly(lactic-co-glycolic acid)(HBPG-PLGA) nanoparticles.Methods Prepared nanoparticles were divided into group B (HBPG-PLGA nanoparticles),group EP (EM-HBPG-PLGA nanoparticles) and group OEP (OX26-EM-HBPG-PLGA nanoparticles).The cytotoxicity against brain microvessel endothelial cells (BMECs) of nanoparticles of different groups were measured by MTT test,haemolysis test,normal haemotological parameter and several primary items of coagulation system were tested after nanoparticles of different groups and different dosages injection on rats.Results ①All the three groups of nanoparticles induced decreased cell viability in a dose dependent manner in MTT test,whereas all groups of nanoparticles showed low cytotoxicity against the BMECs during 30 to 600 μg/ml.②There was no significant difference in haemolysis ratio (P＞0.05) and normal haemotological parameter (P＞0.05).③There was no significant difference between the low dosage of all the three groups of nanoparticles and the control group on the function of coagulation system in rats (P＞0.05).④Compared with C group,high dose groups demonstrated longer prothrombin time (PT),activeated partial thromboplasting time (APTT) and lower fibrinogen (Fbg) (P＜0.05).At the same time,compared with the low dose subgroups,PT and APTT were prolonged,Fbg significantly decreased in the high dose subgroups (P＜0.05 or P＜0.01).Conclusion OX26 coupled with EM-HBPG-PLGA nanoparticles showed low cytotoxicity against BMECs and had no significant effect on the coagulation system in rats with low concentration and low dosage.

Background Sirius system,a new Scheimpflug camera combined with Placido topography,improved the capability of imaging the anterior eye segment significantly.However,the study of assessing the repeatability and agreement between Sirius and Pentacam is still lack up to now.Objective This study was to evaluate the repeatability and agreement of the anterior ocular segment measuring parameters by Sirius and Pentacam in myopia received laser in situ keratomileusis (LASIK).Methods Thirty-five myopic eyes of 35 patients received LASIK were included in School of Optometry and Ophthalmology Eye Hospital from 2010 May through 2010 July.Corneal power flat keratometry (Kf),step keratometry (Ks),mean keratometry (Km),thinnest corneal thickness(TCT),the location of TCT,anterior chamber depth (ACD) and anterior chamber volume (ACV) were measured by Sirius and Pentacam in all the eyes,respectively.The repeatability of the measuring results were evaluated using intraclass correlation coefficients (ICC) and Cronbach's coefficient alpha (CoA),and the agreement of measuring parameters between Sirius and Pentacam was analyzed using Bland-Altman plot.Results Both Sirius and Pentacam demonstrated high intraobserver repeatability,with all ICC and CoA more than 0.90.No significant differences were found in Kf values and Ks values between the two methods (t =-1.533,-1.750,P＞0.05).Km value was (39.14 ± 1.95) D by Sirius measurement,which was sígnificantly higher than (39.05 ± 1.91) D by Pentacam measurement (t =3.572,P =0.001).The TCT was (457.6 ± 40.9) μm by Sirius method,showing a significant reduce in comparison with (465.4±37.5) μm of Pentacam method (t =-6.689,P＜0.001).A positive correlation was seen in the TCT between the two methods (r=0.988,P＜0.001).The Bland-Alrman plots showed the 95％ CI-21 μm to 6 pm in the TCT value between the two devices.Pairwise comparison of the location of TCT measurements showed significant differences between the two devices (t =-4.132,-5.696,P＜0.001),with a good correlation (r=0.751,0.775) and the 95％ CI (-0.36-0.17 mm,-0.35-0.12 mm).A very good agreement was seen in ACD between the two devices (-0.02-0.12 mm),but the agreement result was not very well in the ACV between the two devices with the 95％ CI (-27.70-6.20 mm3).Conclusions Sirius and Pentacam measurements for anterior ocular segment parameters have a very good repeatability in post-LASIK eyes.In addition,good agreement results are exhibited in corneal power,TCT and ACD between Sirius and Pentacam with an acceptable maximal different value between them.Sirius and Pentacam can be used interchangeably in clinical examination.However,the two devices can not interchangeably for ACV measurement and TCT location.

AIM: To investigate the time - effect relationship between the expression of rhodopsin and recoverin and photoreceptor damage induced by N - nethl - N -nitrosourea ( MNU) .
METHODS: Thirty-six 7-week old Sprague-Dawley ( SD ) rats were intraperitoneally injected with MNU ( 60mg/kg ) and were put to death by dislocation of cervical vertebra 6, 12, 24h; 3, 7d after injection ( 6 per group) , respectively. As a control, six rats were injected with phosphate buffer saline (PBS) 5mL/kg and sacrificed on d3 after injection. The degree of photoreceptor apoptosis was detected by HE staining, terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling ( TUNEL ) and transmission electron microscope ( TEM ) in the right eyes. The mRNA expressions of rhodopsin and recoverin were detected different time after injection by Western blot and immunohistochemical method in the left eyes.
RESULTS:The dissolution of photoreceptor nucleus and apoptosis body were first perceived at 12h by TEM; most of cells at outer nuclear layer were presented positive reaction. The apoptotic index reached peak ( 29. 7% ±2.3%) at 24h which was coincided with the observation of TEM. The results of immunohistochemistry displayed that rhodopsin and recoverin were on a declining curve with time extension. Furthermore, the results of Western blot indicated that rhodopsin had dramatic decline at 6h after injection (P<0. 05), and extremely significant difference comparing to control group after 12h ( P<0. 01 ); while recoverin dramatic declined at 12h, and extremely significant difference after 24h (P<0. 01).
CONCLUSION:60mg/kg MNU intraperitoneally injection one - time may specifically induce photoreceptor apoptosis, The mechanism of down - regulation of rhodopsin and recoverin may be related to the selected apoptosis of photoreceptors.

Objective To evaluate the endovascular treatment of diffuse aortoiliac occlusive diseases. Methods Thirty-two patients underwent endovascular treatment in which rest pain was found in 84.38%, foot local gangrene in 15.62%. Mean age was 69.7 years (range, 52 years to 81 years) and 71.9% was male. Trans Atlantic Inter-Society Consensus C and D disease was respectively in 40.6% and 59.4% patients. Mean length of vasculopathy was (14.6 ± 1.2) cm (range, 4.5 cm to 19.5 cm) All patients had prohibitive risk for open revascularization. With the approach from femoral artery or brachial artery, combined techniques, such as recanahzation, balloon dilation, stent placement and concomitant common femoral endarterectomy were used. Results Technical success was achieved in twenty-nine patients(90.63%). The complication rate was 3.45%. Clinical status was markedly improved in eight cases (27.59%) and moderately improved in twenty-one cases(72.41%). Mean postoperative ABI was 0.73 ± 0.12, mean preoperative ABI was 0.32 ± 0.09. Significant differences were seen between postoperative ABI and preoperative ABI(P<0.05). Mean time of follow-up was (13.9±6.2) months. At 6 months, primary patency was 81.82% and secondary patency was 89.09%. At 12 months, primary patency was 63.64% and secondary patency was 80.18%. Conclusion Combined multiple endovascular technique is a safe and effective method in the treatment of poor risk diffuse aortoiliac occlusive diseases.