Objective:To investigate the cross protective effects of folic acid,VB6,VB12 on rat aortic endothelial cells(RAEC) from injury induced by DL-homocysteine(Hcy).Method:RAEC were cultured in vitro,and the cross effects of folic acid,VB6,VB12 were studied by MTT.According to the results of orthogonal design,the activities of SOD,GSH-PX,NOS and the contents of MDA,NO in the media were compared.Results:The results of orthogonal design indicated that the inhibition of Hcy to RAEC could be relieved by folic acid,VB12 excluding VB6.The interaction existed between folic acid and VB12,as well as VB6 and VB12.The inhibition of Hcy to the enzymes(SOD、GSH-PX、NOS) could be relieved by three vitamin projects.Folic acid,VB12,VB6 could inhibit the reduction of NO and decrease the production of MDA.Conclusion:The simultaneous addition of folic acid,VB6 and VB12 may be an excellent strategy for protection of RAEC injury induced by DL-homocysteine.

Objective: To investigate the effect of DL-homocysteine (Hcy) on expression of VCAM-1 and the adhesion between endothelial cells and monocytes in cultured rat aortic endothelial cells. Method: Rat aortic endothelial cells were cultured in vitro and treated by 0-5.0 mmol/L Hcy for 24 h. The activity of SOD and GSH-Px, the contents of MDA in the medium and the rates of adhesion between endothelial cells and monocytes were determined. The expressions of NF-?b,VCAM-1 protein and the VCAM-1 mRNA were detected by immunocytochemical and reverse transcriptase PCR respectively. Results: Compared with control group and 0.01 mmol/L Hcy , 0.1-5.0 mmol/L Hcy significantly inhibited the activity of SOD and GSH-Px, increased the contents of MDA and the expression of NF-?B and VCAM-1mRNA, enhanced the rates of adhesion between endothelial cells and monocytes. Conclusion: Homocysteine may play a crucial role in atherosclerosis by increasing the expression of NF-?B,VCAM-1mRNA and enhancing the rates of adhesion between endothelial cells and monocytes.

Objective To probe the relationships between homocysteine (Hcy) and folic acid, VB6, VB12. Methods Ninety-eight diabetes mellitus (DM) patients and 31 normal persons were recruited. Fluorescence polarization immunoassay (FPIA) was used to detect Hcy, and double labelled radioimmunoassay to detect folic acid, and VB12. Results The Hcy in DM patients was decreased in folic acid(5 mg/d) group, VB12 (1.5 mg/d), group and folic acid combined with VB12 group. but not in VB6 group. Conclusion Folic acid, VB12, and folic acid combined with VB12 can reduce Hcy in DM patients,but VB6 cannot.

Objective To discuss about the relationship between the occurrence of the uterine cervix cancer and the risk factors.MethodsAmong the patients we collected,92 patients were diagnosed to have the cervical cancer,63 patients were diagnosed as CINⅢ (the cervical intraepithelial neoplasia,CIN),and 252 patients belonged to the control group.All patients had not been cured before.We used the questionnaire to investigate them about the dietary habit and other information.Through using different statistical Methods ,we explored the relationship between the cervical cancer and the potential factors.ResultsWe found out that many factors contributed to the happening of the cervical cancer,such as gynecopathy(χ2=19.31,P＜0.01),the first time of the menses(F＝11.62,P＜0.01),the first time of the sex life(F＝25.76,P＜0.01),the first time of the parturition (F＝28.02,P＜0.01),the times of the pregnancy and the parturition(F1＝13.98,P1＜0.01;F2＝4.78,P2＜0.01),the culture degree(χ2＝10.70,P＜0.05),the infection of HPV(χ2＝179.95,P＜0.01),the level of the folic acid (F＝3.39,P＜0.05) and so on.The result of the logistic regression analysis showed that keeping the habit of drinking tea(OR＝0.321,β＝-1.136,P＜0.05),paying attention to the sanitation of the sex life(OR＝0.387,β＝-0.950,P＜0.05),putting off the first time of the sex life(OR＝0.551,β＝-0.596,P＜0.05),and the higher level of the folic acid (OR＝0.502,β＝-0.688,P＜0.05) were the protective factors tothe occurrence of the uterine cervix cancer.Meanwhile,the infection of the HPV(OR＝27.215,β＝3.304,P＜0.01),many times of the parturition(OR＝1.846,β＝0.613,P＜0.05) and the passive smoking (OR＝1.673,β＝0.515,P＜0.05) were the risk factors.ConclusionsWith the higher level of the folic acid,the less possibility you will get the cervical cancer.There exists many measures to prevent the happening of the cervical cancer,like keeping the healthy sex life,keeping far away from the passive smoking,not to give birth too early or too many and preventing being infected the HPV.What's more,having the good habit of drinking tea and paying attention to the supplement of the folic acid and Vitamin B12 may be the effective method to prevent the occurrence of the cervical cancer.

ObjectiveTo discuss the feasibility of the method that can be used to induce the model of type 2 diabetic mellitus rat and explore the characteristic of the nephropathy.The rats were fed with the high sucrose,high fat and high energy feed for a long time and then it was injected with the low dose STZ.Methods30 SD rats were selected and then it was randomly divided them into 2 groups,the control group (10 rats) and the model group (20 rats).The model group was fed with the high calorie feed forl0 weeks to induce insulin resistance and then the rats were induced to type 2 diabetes mellitus by injection of streptozocin (30 mg/kg).The rats of the model group were continually fed with the high calorie feed for 2 months.Before the end of this study,the 24-hours microalbuminuria,serum creatinine and blood urea nitrogen were detected and the periodic acid Schiff staining on the kidney were also measured.ResultsAfter the rats of the model group were established,the levels of the bodyweight,the cholesterol,the triglyceride and the insulin were [ (468.7 ± 8.8 ) g,( 1.92 ± 0.27 ) mmol/L,( 1.32 ± 0.34) mmol/L,(38.81 ± 5.39 ) mU/L ] respectively,all of them were higher than the levels in the normal group,which were [ (436.9 ± 7.4) g,(1.16 ±0.17)mmol/L,(0.8 ±0.18)mmo1/L,(21.43 ±4.19)mU/L],respectively( t =9.755,8.077,4.437,8.902,P ＜ 0.01 ).After injection of STZ for 2 weeks,the levels of the blood glucose,the insulin and the insulin resistance of the diabetes mellitus rats were [ ( 19.31 ± 1.55 ) mmol/L,( 31.31 ± 8.60) mU/L,(26.55 ± 6.33) ] respectively,it was higher than levels inf the normal group,which was[ (5.45 ±0.69) mmol/L,( 19.97 ± 3.26) mU/L,(4.82 ± 0.84) ] ( t =26.383,3.951,10.719,P ＜ 0.01 ).Before the end of this study,the levels of the blood glucose,insulin resistance,24-hours microalbuminuria,serum creatinine,blood urea nitrogen of the diabetes mellitus rats were [ ( 19.27 ± 1.97 ) mmol/L,( 16.70 ±7.51 ),(72.49 ± 8.53 ) mg/24 h,( 74.76 ± 8.38 ) μmol/L,( 19.09 ± 4.21 ) mmol/L],it was higher than the levels in the normal group,which were [ (5.62 ±0.65) mmol/L,(5.45 ± 1、33),( 15.26 ±2.20) mg/24 h,(40.81 ± 1.97) μmol/L,(9.87 ±2.13) mmol/L,t =20.961,4.657,20.623,12.495,6.352,P ＜0.01 ].And the pathological changes of the diabetes mellitus rats kidney tissues were the most serious through themethod of periodic acid-Schiff's staining (PAS).ConclusionsThe model of type 2 diabetic mellitus rat was constructed through the way of feeding the SD rats with high sucrose,high fat and high energy feed for a long time and low dose STZ.The diabetic mellitus rats had the symptom of drinking more,eating more and diuresis,and the character of this model had high levels of albuminuria,serum creatinine,blood urea nitrogen.The incrassated glomerular mesangium,the crescent-shaped focus and the glomerulosclerosis were also observed through the PAS.

Objective To investigate and analyze the clinical application of washed red blood cells in Quzhou in 2014-2015 years,and to provide evidence for the rational and effective use of washed red blood cells in clinical practice.Methods the amount of washed red blood cells,the distribution of diseases and the serological detection before transfusion were analyzed retrospectively in 8 hospitals of grade two and over in Quzhou during the past 2014-2015 years.Results the amount of washed red blood cells in 2015 increased by 39.07％ compared with 2014,an increase of 24.4 times the amount of red blood cells increase,increase mainly in 3 hospitals;Diseases of the blood system,malignant tumors and chronic kidney disease is the main diagnosis of transfusion cases,accounted for 63.49％,19.05％,12.70％.There were different standards for the development of serological testing items before transfusion Conclusion the advantages of washed red blood ceils gradually recognized by clinicians,but also don't rely on experience,hospitals should pay attention to the comprehensive evaluation of clinical blood transfusion and standardize the serological detection of blood transfusion department,which is the key to improve the cost performance of this component.

Objective:To investigate the related factors and prognosis of invasive Klebsiella pneumoniae liver abscess syndrome (IKLAS). Methods:The in-patients diagnosed with Klebsiella pneumoniae liver abscess in the Department of Infectious Diseases, Huashan Hospital, Fudan University from January 2015 to February 2021 were retrospectively enrolled. The patients were divided into IKLAS group and non-IKLAS group according to whether they had IKLAS or not. The clinical data between the two groups were compared, including the prevalence of diabetes mellitus, the details of liver abscess, clinical symptoms such as fever and abdominal pain, as well as laboratory tests such as glycosylated hemoglobin and hemoglobin. Statistical analysis was performed using chi-square test or independent sample t test. Multivariate logistic regression analysis was used to analyze the factors influencing the occurrence of IKLAS. Results:A total of 75 patients with Klebsiella pneumoniae liver abscess were enrolled, including 55 patients (73.33%) in the IKLAS group and 20 patients (26.67%) in the non-IKLAS group. Fifty-two point seven three percent (29/55) of the patients had diabetes mellitus and 12.73%(7/55) of the patients had abdominal pain in the IKLAS group, which were 20.00%(4/20) and 45.00%(9/20) in the non-IKLAS group, respectively, and the differences were both statistically significant ( χ2=6.38 and 7.28, respectively, both P<0.05). Most of liver abscesses were single (50/75, 66.67%), and more likely to occur in the right liver (50/75, 66.67%). The maximum diameter of liver abscess in the IKLAS group was (4.58±2.04) cm, which was smaller than that in the non-IKLAS group ((6.49±3.11) cm), and the difference was statistically significant ( t=2.82, P=0.011). Compared with those in the non-IKLAS group, patients in the IKLAS group had higher glycosylated hemoglobin (8.69%±2.64% vs 6.18%±1.31%) and hemoglobin ((112.25±22.04) g/L vs (100.05±18.59) g/L), and the differences were both statistically significant ( t=-4.25 and -2.21, respectively, both P<0.05). The proportion of patients using antibiotics combined with abscess drainage in the IKLAS group was 38.18%(21/55), and that in the non-IKLAS group was 85.00%(17/20). The difference between the two groups was statistically significant ( χ2=12.86, P<0.001). A total of 16 patients (21 eyes) were diagnosed as endogenous Klebsiella pneumoniae endophthalmitis (EKPE), and all of them were IKLAS patients, and 14 patients underwent monocular/binocular eyeball injection and/or vitrectomy and silicone oil filling. The visual acuity of 13 patients decreased significantly. Multivariate logistic regression analysis showed that complicated with diabetes mellitus was an independent risk factor for IKLAS (odds ratio ( OR)=5.02, 95% confidence interval (95% CI) 1.01 to 25.03, P=0.049). The large diameter of liver abscess was a protective factor for IKLAS ( OR=0.64, 95% CI 0.47 to 0.86, P=0.003). Conclusions:The patients with IKLAS have less abdominal pain, and most of them complicate with diabetes mellitus. Diabetes mellitus is an independent risk factor for the occurrence of IKLAS, while the large diameter of liver abscess is a protective factor. EKPE is associated with poor visual prognosis.