Objective To find out the influencing behavioral factors of antibiotics usage in population in Lanzhou. Methods Status of antibiotics usage was investigated in four hospitals in Lanzhou. Results The self-medicine pro portion among patients with respiratory system infection, infectious di arrhea, urinary system infection and choleic system infection were 44.22%, 31. 76%, 22.07% and 6.61% respectively. Patients having higher income used some antibiotics at a middle price, while patients having lower income used antibiot ics at a lower price. The educate d person applied some antibiotics at a lower price, but the illiterate person us ed some antibiotics at a higher price. The combined usage of antibio tics was affected by the disease program and distance of seeing doctor. The fart her distance away from hospital, the more proportion of antibiotics(two or thre e) used combinedly. Conclusions The antibiotics usage was affe cted by the disease variety, disease program, distance to hospital, average inco me and educ ated level.

Objective To learn the psychological needs of the hospital staff in terms of their life,medical care and psychological health.Methods 2910 hospital staff were interviewed with questionnaires and the outcomes analyzed with x2 test and descriptive analysis.Results 96.9％of the surveyed found themselves in need of psychological counseling; considerable consulting needs of the staff; most of them turn to friends to complain instead of their leaders.Conclusion The psychological counseling should be enhanced to build effective communication channels and ease stress of the staff.

Streptomyces sp. A048 was cultured in a complete medium to the last stage of log phase,the hyphae were washed and collected by centrifugation. Then the hyphae were inoculated in liquid medium for chitinase production using two-step fermentation. Activity of chitinase produced by two-step fermentation was 1.1 times higher than that from one-step fermentation,and ferment cycle was for 54 hours,which was 66 hours shorter than that of one-step fermentation. The hyphae and the powder of chitin were co-immobilizated and cultured in liquid medium for 36 hours,activity of chitinase was 1.8 times higher than that from one-step fermentation,and ferment cycle was 54h shorter than that of one-step fermentation. By adding 0.4% cellulose to two-step fermentation,activity of chitinase was 18.52 U/mL that was 4 times higher than that from the control and 10 times higher than that from one-step fermentation. Two step fermentation with chitin and cellulose may be the optimal fermentation process to produce Chitinase from Streptomyces sp. A048.

Heterokaryon incompatibility is a widespread phenomenon among fungi,controlled by specific loci termed het (for heterokaryon incompatibility).This review focuses on recent developments in our understanding of the molecular mechanisms of nonself recognition and the relationship between the death progresses of heterokaryon incompatibility and associated proteins in fungi.The deep research of heterokaryon incompatibility mechanism will hopefully reveal underlying principles of the evolution of nonself recognition systems and will find some effective method for settling the instability of protoplast fusant of fungi.

A test was conducted to examine the effect of several electron donors such as glucose, sodium acetate, Fe0, Fe0+glucose and Fe0+sodium acetate on reductive dechlorination of 2,4-dichlorophenol (2,4-DCP) through inoculating the unacclimated anaerobic mixed bacteria. The optimum condition and sus-tainability of Fe0 as electron donor was also been discussed. The results showed that, Fe0+glucose enhanced the dechlorination of contaminant effectively compared to glucose. Sodium acetate, Fe0 and Fe0+sodium acetate were all effective electron donors and Fe0 was the optimum, the optimum initial pH was 8.0 and quantity of added Fe0 was 2.0 g/L. 4-CP was the mainly intermediate product for 2,4-DCP dechlorination. Fe0 could support the electron for reductive dechlorination of 2,4-DCP continuously. In contrast, when so-dium acetate as electron donor, the effect of dechlorination was inferior to Fe0 with the consumption of sodium acetate.

The growth curve of single cell organisms in batch cultivation could divide into 6 phases, lag phase, acceleration phase, log phase, deceleration phase, stationary phase, and death phase, based on specific growth rate during cultivation process. There were significantly differences between deceleration phase and the other phases in cell growth, substrate consumption, product formation, and genes express profile. The deceleration phase was highly important to fermentation process. However, cognizing and teaching to the deceleration phase had been considerably weakened since a long period. So it should be strengthened.

Saliva and blood were collected from two patients who had not received post exposure prophylaxis in the cities of Wenzhou and Xinning respectively. Both patients were confirmed as positive for rabies by detection of rabies virus specific nucleoprotein antibodies in the sera by Western Blot. However, rabies virus specific RNA was only identified in the saliva collected from the patient in Wenzhou. Furthermore, the isolate Zhejiang Wz0 (H) was obtained by inoculating one-day-old suckling mice. Both nucleoprotein (N) and glycoprotein (G) genes from the isolate were amplified by RT-PCR and sequenced. Phylogenetic analysis indicated that the isolate belonged to classic rabies virus, and shared a higher homology with the street viruses from dogs in the main endemic areas in China and the street virus from dogs in Indonesia than with other known strains. Further comparison of the deduced amino acid sequences between the isolate and the vaccine strains used in China showed that the virus had a higher level of homology with the vaccine strain CTN than with the other vaccine strains (3aG, PV, PM and ERA). In particular, amino acid residues substitutions located in antigenic site Ⅲ in the G protein, which could react with the neutralizing antibodies, were observed. These results suggested that the virus belonged to the classic rabies virus, and both N and G genes diverged from the current vaccine strains used in China at either the nucleotide or the amino acid level.

OBJECTIVETo study the possible association between C-reactive (CRP) and insulin resistance (IR) as well as the pathogenesis of type 2 diabetes macrovascular complication.

METHODSSerum CRP was measured by ultrasensitive immuoturbidimetric, which was determined on type 2 diabetes (T2DM) with or without macrovascular complication (70 and 60 cases respectively) and on normal controls (90 cases). IR was estimated by homeostasis model assessment (HOMA-IR).

RESULTSResults showed that the concentration of CRP was higher in T2DM with or without macrovascular complications than that in the healthy subjects (P < 0.01), while it was higher in diabetic patients with macrovascular complications than that in diabetic patients without macrovascular complications (P < 0.01). In diabetic patients with macrovascular complications, person correlation analysis indicated that there existed positive correlations between CRP and FINS, HOMA-IR, triglyceride (TG) while stepwise linear regression showed that usCRP and HOMA-IR, TG having linear correlation.

CONCLUSIONCRP seemed to play a role in the initiation and progression of atherosclerosis in type 2 diabetes, possibly was by the way of IR.

C-Reactive Protein ; metabolism ; Case-Control Studies ; Diabetes Complications ; blood ; metabolism ; pathology ; Diabetes Mellitus, Type 2 ; complications ; metabolism ; physiopathology ; Female ; Homeostasis ; Homocysteine ; blood ; Humans ; Inflammation Mediators ; metabolism ; Insulin Resistance ; Linear Models ; Male ; Middle Aged

OBJECTIVETo study the inhibition effect of celastrol on neovascularization.

METHODSThe effect of celastrol on the in vitro proliferation of endothelial cell of vessel (ECV) was examined by MTT assay. The effect of celastrol on endothelial cell migration, tube formation on Matrigel and Chick chorioallantoic membrane angiogenesis was also examined. Matrigel plug assay was used to evaluate the effect of celastrol on angiogenesis in vivo.

RESULTSThe proliferation of ECV was inhibited significantly by celastrol with IC(50) being 1.33 microg/ml. Celastrol inhibited endothelial cell migration and tube formation in a dose-dependent manner. Celastrol also inhibited angiogenesis both in Matrigel plug of mouse model and in chick chorioallantoic membranes.

CONCLUSIONCelastrol, which can inhibit angiogenesis, could be developed as an antiangiogenic drug.

Angiogenesis Inhibitors ; pharmacology ; Animals ; Endothelial Cells ; drug effects ; Mice ; Mice, Inbred BALB C ; Triterpenes ; pharmacology

Objctive To explore the clinical value of Chitinase-3-like protein 1(CHI3L1)in patients with chronic hepatitis B (CHB),liver cirrhosis and liver cancer.Methods 96 clinically diagnosed patients in Department of Infectious Diseases Hos-pital of Anhui Provincial Hospital from Jan 2016 to Feb 2017(28CHB,44livercirrhosis,24liver cancer,15healthy controls) were analyzed.The serum level of CHI3L1 was measured by enzyme-linked immunosorbentassay(ELISA).The Golgi pro-tein(GP73)was tested by double-antibody sandwich immunochromatographic assay.The Alpha-fetoprotein(AFP)was tested by means of chemical luminescence.Results There were significant differences between the groups of chronic hepati-tis B(CHB),liver cirrhosis,liver cancer and healthy controls on the CHI3L1 level(χ2=70.249,P<0.001).The CHI3L1 level of the liver cirrhosis group and the liver cancer group increased significantly compared with that of the healthy controls (P<0.001).The GP73 levels of these groups were significantly different(χ2=44.963,P<0.001).The GP73 levels of the CHB group,the liver cirrhosis group and the liver cancer group all increased significantly compared with that of the healthy controls(P<0.05).The AFP levels of these groups were significantly different(χ2=57.606,P<0.001).The AFP level of the liver cancer group increased significantly compared with that of the CHB group,the liver cirrhosis group and the healthy controls(P<0.001).Based on the receiver operating characteristic(ROC)curve of CHI3L1,GP73 and AFP in the CHB group and the liver cirrhosisgroup,the Area Under roc Curve(AUC)of CHI3L1 was 0.953(95%CI:0.902~1.000),the sensitivity was 88.6%,and the specificity was 92.9%,which was higher than GP73 and AFP.Based on the ROC curve of CHI3L1,GP73 and AFP in the liver cirrhosis group and the liver cancer group,the AUC of AFP was 0.930(95% CI:0.871~0.989),the sensitivity was 75.0%,and the specificity was 97.7%,which was higher than CHI3L1 and GP73.The corre-lation between the CHI3L1,GP73 and AFP in CHB,liver cirrhosis and liver cancer groups were analyzed.There was a posi-tive correlation between AFP and GP73(rs=0.491,P<0.001),a positive correlation between AFP and CHI3L1(rs=0.452,P<0.001),a positive correlation between GP73 and CHI3L1(rs=0.554,P<0.001).Conclusion CHI3L1 is good at diagnosis of liver cirrhosism,better than GP73 and AFP.And AFP could be more beneficial in patients with liver cancer, better than CHI3L1 and GP73.