Cystatin C is widely present in nucleated cells of various tissues and body fluids as a cysteine protease inhibitor.It can predict the occurrence of diabetes,and it was significantly associated with diabetic macrovascular and microvascular complications such as albuminuria,retinopathy,peripheral arterial disease,and coronary artery disease.This review introduces the research progress of cystatin C in diabetes and diabetic vascular complications.

Objective To compare the efficacy and safety of prourokinase,reteplase and urokinase on the patients with acute ST -segment elvation myocardial infarction.Methods According to random number table,the eligible patients with acute ST -segment elvation myocardial infarction were randomly divided into prourokinase group (50mg,n =34),reteplase group (36mg,n =42)and urokinase group (1 500 000IU,n =32).The patency of infarct related coronary artery was estimated by coronary angiography at 90min after administration of thrombolytic agents.The adverse reaction was also observed including bleeding and the major adverse cardiac events(MACEs).Results The patency of culprit vessel in the prourokinase group was 76.50% (≥TIMI 2 flow),which in the reteplase group was 83.30% (≥TIMI 2 flow),and which in the urokinase group was 53.10% (≥TIMI 2 flow),respctively.Both of prourokinase group and reteplase group were higher in the patency than theurokinase group(χ2 =8.27,P =0.004). The MACEs and bleeding adverse reaction(prourokinase group 17.65%,reteplase group 28.57%,urokinase group 42.19%)showed that security of prourokinase group was securer than reteplase group and urokinase group(χ2 =6.36,P =0.012).Conclusion Both of prourokinase and reteplase are effective for the patients with acute myocardial infarction with ST -segment elvation,and prourokinase is safer.

Objective To explore the difference of myeloperoxidase(MPO)detection results among different types of samples , anticoagulant selection and comparison of detection results .Methods The plasma samples containing EDTA‐K2 or heparin and ser‐um samples of common biochemical tube without containing anticoagulant were collected from 165 persons undergoing healthy physical examination .The MPO level in 3 kinds of sample was detected .Then the detection results in each group were performed the statistical analysis .Results The MPO detection results had statistical difference between plasma samples with different antico‐agulants and between plasma samples with different anticoagulants and serum sample without anticoagulant in the same person (P<0 .05) .Conclusion Different samples types have larger difference in M PO detection results .It is suggested that each laboratory should formulate the corresponding reference intervals according to different anticoagulants ;because EDTA‐K2 anticoagulation plasma is not affected by the release of MPO from in vitro leukocytes ,it is recommended to adopt EDTA‐K2 anticoagulation blood as the first selected of M PO level detection .

Objective:To study memory changes in patients with non-demented Parkinson disease(PD) without depression.Methods:The Nissen Version(serial reaction time task,SRTT) software(as a task of procedural learning),the WMS-CR and two tasks of implicit memory were applied in 16 PD patients(Hoehn-Yahr score I~Ⅱdegrees).Normal controls enrolled for the Nissen Version either.Results In the explicit WMS-CR and the implicit(word stem completion and degraded picture naming) tasks,the patients' scores fell within normal limits(Memory Quotient 97.1?10.6).In the SRTT,normal control group displayed significantly reduced response times(F=2.54,P=0.008) and error rates(3.2 ?0.9% to 6.8 ?2.7%,t=-2.08,P=0.045) across the blocks of repeated sequence trials.By contrast,PD patients only showed a reduction in error rates(4.7?2.0% to 3.7?1.8%,t=-2.15,P=0.038) but no change in response times.Conclusion:Impairment of nigrostriatal pathways selectively affects performance in visuo-motor learning tasks such as the SRTT,but not in the explicit tasks of WMS-CR and the implicit tasks such as word stem completion and degraded picture naming.

AIM: To evaluate the clinical curative effect of Qiangli Tianma Duzhong Capsule in the treatment of acute cerebral infarctions. METHODS: 72 patients were randomly divided into two groups:the treatment group and contrast group.The treatment group on the basis of the regular treatment was assigned to 28 days of treatment with Qiangli Tianma Duzhong Capsule.The contrast group on the same regular treatment was assigned to 28 days of treatment with Fufang Danshen Injection.The European Stroke Score(ESS) and clinical curative effect were evaluated in the treatment group and control group on the 28~(th) day. RESULTS: After 28 days,the European Stroke Score(ESS) of the treatment group(6.02?4.81) decreased significantly in the control group(7.88?4.85)(P

Objective To evaluate the effect of bilateral subthalamic nuclei deep brain stimulation (STN-DBS) on anxiety and depression of patients with Parkinson's disease(PD).Methods Forty-one consecutive patients with refractory motor fluctuations and dyskinesia were assessed with Hoehn & Yahr scale, Unified Parkinson’s Disease Rating Scale Ⅲ (UPDRSⅢ), HADS, PD Questionnaire Chinese version (PDQ-39) a week before surgery and 12 months after the surgical procedure. Results The scores of UPDRSⅢ, HADS and PDQ-39 significantly increased after STN-DBS treatment (all P

AIM: To determine puerarin and tanshinone ⅡA in Xinkeshu Capsule(Radix Puerariae Lobatae,Radix et Rhizoma Salviae Miltiorrhizae) by HPLC simultaneously. METHODS: HPLC C_(18) column was used with methanol-water(85∶15) as the mobile phase. The flow rate was 1.0 mL/min,and the wave length was at 250 nm. RESULTS: There were good liner relationships for puerarin and tanshinone ⅡA with the sample input quantity at the range of 21-63 ?g(r=0.999 8) and 20.02-60.06 ?g(r=0.999 7),respectively.The average recoveries of puerarin and tanshinone ⅡA were 97.7% and 97.0%,respectively. CONCLUSION: This method is simple,accurate,effective and suitable for the quality control of Xinkeshu Capsules.

The effects and the mechanism of insulin treatment on intracellular lipid metabolism in liver of diabetic rats were evaluated. Type 2 diabetic rats were induced by injecting the streptozotocin (25 mg/kg) and fat rich food. According to the results of oral glucose tolerance test (OGTT) and glucose-induced insulin secretion test (IRT), the rats were divided into two groups: untreated group (UT) and insulin-treated group (IT). Normal rats (NC) served as controls. The treatment with either Humulin N (4--6 U/kg every day), or saline lasted for 4 weeks. Body weight, OGTT, IRT, blood lipids, intracellular lipids in liver, hepatic fatty acid oxidation and the activity of fatty acid synthase (FAS) were detected. The change of liver histology was observed. The insulin sensitivity index (ISI) was applied to assess the status of insulin resistance. The results showed that as compared with NC group, the plasma and hepatic intracellular Triglyceride (TG), total cholesterol (TC) and free fatty acids (FFAs) were increased significantly in UT group (P < 0.05), and lipid droplets could be seen dispersedly in the liver specimens, the hepatic fatty acid oxidation was increased markedly (P < 0.05), while the fatty acid synthase activity decreased (P < 0.05). Insulin treatment resulted in a further accumulation of lipids in liver by 55.7%, 19.87% and 22.2% increase in TG, TC, FFAs respectively. The size of hepatocytes was enlarged and the cells were filled with fat drops. Plasma lipids showed little decrease and still significantly higher than those in NC group after the insulin treatment. Meanwhile, insulin treatment was companied by 20% decrease in the rate of fatty acid oxidation and 31% increase in hepatic FAS activity compared to UT group. It was concluded that treatment with insulin on type 2 diabetic rat increases hepatic intracellular lipid accumulation by inhibiting hepatic fatty acid oxidation and activating FAS.

Objective To prospectively and directly compare the capability of whole-body DWI,MRI and/or CT (MRI-CT),and whole-body DWI with MRI-CT for assessment of lymphatic metastases in non-small cell lung cancer (NSCLC) patients.Methods The institutional review board approved this study; informed consent was obtained from patients.A total of 56 NSCLC patients underwent whole-body DWI and thoracic CT scan prospectively.Conventional MRI was performed in suspicious lymphatic metastases parts within one week after inspection.Final diagnosis of the lymphatic metastases in each patient was determined on the basis of results of all radiologic and follow-up examinations.Two chest radiologists independently assessed all examination results and used a five-point visual scoring system to evaluate the probability of metastases.Final diagnosis based on each of the methods was made by consensus of two readers.Receiver operating characteristic (ROC) analysis was used to compare the capability for lymphatic metastases assessment among whole-body DWI,MRI-CT and whole-body DWI with MRI-CT.The detection abilities of lymph nodes with different size were compared with x2 test.Value of apparent diffusion coefficient (ADC) in the differential diagnosis of benign and malignant lymph nodes was compared with the variance analysis.Results (1) Lymph nodes metastases were divided into 3 groups according to the length diameter (＜ 2,2-3,＞ 3 cm).A statistically significant difference (x2 =13.819,P ＜ 0.01) was found in detection of lymph nodes (＜ 2 cm) among whole-body DWI,MRI-CT and whole-body DWI with MRI-CT(within the 123 lymph nodes,109,98 and 117 were detected respectively),whole-body DWI with MRI-CT was superior to conventional MRI-CT(x2 =13.324,P＜0.01).There were no statistically significant difference between the other 2 groups (in the length diameter 2-3 cm group,43,40 and 45 of all 46 lymph nodes were detected respectively by whole-body DWI,MRI-CT and whole-body DWI with MRI-CT,x2 =3.816,P ＞ 0.05,while in the length diameter ＞ 3 cm group,all of the 27 lymph nodes were detected by each of them.(2) Conventional MRI-CT was superior to whole-body DWI in the diagnosis of lymph node metastasis in NSCLC.The area under ROC curve value of whole-body DWI with MRI-CT(Az =0.978),the sensitivity,specificity,accuracy (97.4％ 、88.9％ 、86.3％ respectively) were significantly higher than conventional MRI-CT or whole-body DWI.(3)The ADC value of malignant lymph nodes were significantly lower than those of benign [(0.79 ± 0.15) × 10-3 mm2/s vs (1.59--0.15) × 10-3 mm2/s,F =332.813,P ＜ 0.01].The sensitivity,specificity,accuracy were 100％ with the cut-off value of 1.06 × 10-3mm2/s.Conclusions Whole-body DWI is the beneficial supplements of MRI-CT and can be used as a earlier clinical technique in patients with suspected NSCLC lymph node metastasis.Combined with ADC value,it can be used for assessment and differential diagnosis of lymphatic metastases in NSCLC patients.

Objective To investigate the application of whole-body diffusion-weighted imaging (WB-DWI),and to detect bone metastasis in malignant tumor patients.Methods A total of 118 malignant tumor patients prospectively underwent WB-DWI,standard MRI/CT in suspicious bone metastases parts within one week after inspection.Final diagnosis of the bone metastases in each patient was determined on the basis of results of all radiologic and follow-up examinations.The differential diagnosis value of apparent diffusion coefficient (ADC) in benign and malignant bone metastases was compared with the variance analysis.Results Area under ROC curve value of WB-DWI with standard MRI/CT (0.999) was larger than that of WB-DWI (0.944) and standard MRI/CT (0.983),and the specificity,accuracy and positive predictive value were also the highest(100.0 ％,97.4 ％,100.0 ％).The ADC values of malignant bone metastases were significantly lower than those of benign lesions[(0.71±0.15)×10-3 mmTs vs (1.50±0.23)×10-3 mm2/s] with a statistically significant difference(F =261.587,P ＜ 0.001).Conclusion WB-DWI is the beneficial supplements of standard MRI/CT.Which can be used for assessment and differential diagnosis of bone metastases in malignant tumor patients combined with ADC value.