Objective To study the relationship between the diabetic autonomic neuropathy (DAN) and the cerebrovascular disease. Methods The heart rate variability (HRV) was measured in 77cases of type 2 diabetes 〔49 men, 28 women, age (63.1?11.4)years〕. Forty-one cases suffered from DAN (group A), 36 cases without DAN (group B) according to the results of HRV. All the cases received the examination with transcranial Doppler ultrasonography (TCD). Results Compared with group B, the abnormality detected with TCD was higher in group A, cerebrovascular compliance was commonly decreased and cerebrovascular stenosis was also extensively observed. Conclusion DAN seems to be one of the risk fcators in inducing cerebrovascular disease.

Objndve To evaluate the protective effects of specific antagonists of angiotensin II receptor losartan on the kidneys of diabetic rats and study their mechanisms. Methods Changes of urinary albumin, ?2-m excretion, creatinine clearance(Ccr), NO, ET level of plasma, urine and renal tissue, serum and urinary TGF-?1 concentration and mean glomerular volume were measured. Results Losartan could correct elevated urinary albumin, ?2-m excretion, Ccr and mean glomerular volume. Urinary and renal tissue NO, ET concentration decreased after diabetic rats received losartan. Large doses of losartan also reduced urinary TGF-?1 level. Conclusion Losartan can protect the kidney of diabetic rats and the decrease of NO, ET, TGF-?1 concentration in renal tissue may be a mechanism for this action.

The use of the Internet big data to discriminate the early symptoms of unexpected biological events has be-come a frontier research area in biosurveillance .This paper mainly introduces the principle , method, practical applications of big data based biosurveillance , and the future development of this new research field .

Objective To research the 50% effective anesthetic volume ( EAV50) of 0.5% ropivacaine in nerve stimulator-guided vertical infraclavicular brachial plexus block. Methods Thirty patients scheduled for forearm or hand surgery were blocked using 0. 5% ropivacaine in nerve stimulator-guided vertical infraclavicular brachial plexus block. The EAV50, which is the anesthetic volume corresponding to 50% success and 50% failure was determined by up-and-down sequential test. The starting dose of 0. 5% ropivacaine was 0. 55ml/kg. Block failure resulted in a dose increase 110% , and block success in a reduction 110%. The sensory and motor blockade were accessed at 5- min intervals (up to 60 min). Results In nerve stimulator-guided vertical infraclavicular brachial plexus block, EAV50 for 0.5% ropivacaine was 0.417ml/kg. In up-and-down sequential test, there were significantly different in the block success rates of lateral, medial and posterior cord ( P <0.01). Conclusion In nerve stimulator-guided vertical infraclavicular brachial plexus block, enough anesthetic volume must be given to increase block success rates of all the cords of brachial plexus, and EAV50 for 0. 5% ropivacaine was 0.417ml/kg.

Objective To observe the clinical effect of percutaneous transluminal angioplasty (PTA)combined with autologous peripheral blood stem cells(PBSC)transplantation in the treatment of lower extremity ischemic disorders.Methods Fourty-two cases of lower extremity ischemic disorders in the treatment group were treated with PTA and autologous peripheral blood stem cells injection and 40 cases in control group were treated with PTA exclusively.Results All the procedures were successful.In treatment group,ABI improved from 0.32 ±0.11 to(at the 3rd month)and 0.49 ±0.13(at the 6th month)(t=-6.765,-6.040,P＜0.05)while TcPO_2 improved from(26.1 ± 2.3)mm Hg to(32.7 ±4.2)mm Hg(at the 3rd month)and(34.5 ±2.7)mm Hg(at the 6th month)(t=-8.901,-14.250,P＜0.05).In control group,ABI improved from 0.30 ±0.12 to 0.47 ±0.15 and 0.47 ±0.130=-5.631,-5.873,P＜0.05)while TcPO_2 increased from(25.9 ±2.4)mm Hg to(28.9 ±2.9)mm Hg(at the 3rd month)and(28.9 ± 2.1)mm Hg(at the 6th month)(t=-5.090,-5.389,P＜0.05).There was significant difference in TcPO_2 on follow-up between the two groups after the treatment(P＜0.05).Conclusion Autologous PBSC transplantation in combination of PTA was effective for the treatment of lower extremity ischemic disorders.PBSC injection helps to increase TcPO_2.

Cell Line ; Human Umbilical Vein Endothelial Cells ; drug effects ; metabolism ; Humans ; Interleukin-1 ; administration & dosage ; pharmacology ; P-Selectin ; metabolism

AIM: To explore the role of synovium macrophage of adjuvant arthritis (AA) rats in articular damage. METHODS: AA was induced in female Wistar rats by means of intradermal injection with complete Freud's adjuvant. X-ray on hind paws of AA rats was took at different time points and radiograph index (RI) was then evaluated. Synovium macrophages were detected through immunohistochemistry with ED 1 monoclonal antibody. The correlations between RI and synovial lining layer count/synovium macrophage count were also analysed. RESULTS: Synovial lining layer count, both macrophage count in synovial lining layer and sublining layer were positively correlated with RI. CONCLUSION: Synovium macrophages of AA rats may play an important role in articular damage.

Retroviral expression system which consists of retroviral vector,envelop protein vector and packaging cell line is an efficient expression system for recombinant protein.It has great potential in gene therapy and biopharmacy.Transcriptional active genome regions are the preferred targets for retrovirus integration.Furthermore,VSV-G protein enables this system a broader host range and makes virus integration more efficient.After infection of high-titer virus,high production clones can be selected through simple screening.So far,the research on retrovirus expression system has developed into application in bio-pharmacy industry.Here the composition of this system and the mechanism of virus transduction and summarize the application and prospect of retroviral expression system are introduced.

Hepatic Stellate Cells ; metabolism ; Humans ; Signal Transduction

Animals ; Antigen Presentation ; Antigens ; immunology ; Hepatic Stellate Cells ; immunology ; Humans ; Liver Cirrhosis ; immunology