Objective To evaluate the effect of probucol on endothelium-dependent vasodilatation(i,e.flow- mediated dilation,FMD) function of the old patients with isolated systolic hypertension.Methods In this single- blind study,a total of 64 old pariems with isolated systolic hypertension were randomized to receive conventional an- tihypertensive therapy and probucol (0.5g twice daily,group A,n=33) or receive conventional antihyperrensive therapy(group B,n=31) for 12 weeks.The levels of blood lipid were measured and vascular endothelial function was assessed in the brachial artery by high-resolution ultrasound technique in form of endothelium-dependent vasodi- latation before and after treatment.Results After 12-week treatment,the levels of TC,LDL-C and HDL-C in group A were significantly reduced compared with those before treatment(all P0.05).Flow-mediated dilatation parameters in both groups were obviously improved compared with those before treatment( P

Objective To study the heart rate variability(HRV) and blood pressure variability(BPV) in patients with different grades of hypertension.Methods 120 cases of patients with hypertension,according to 1999 WHO/ISH hypertension diagnostic criteria are:1 hypertension in 40 cases,2 of hypertension in 40 cases,3 of hypertension in 40 cases and 40 cases of normal control group were detected heart rate variability and blood pressure variability.Results HRV was significantly different between the two groups(P <0.05 or p <0.01).The blood pressure increased and HRV tended to decrease.The BPV was significantly different(P < 0.01) between the two groups;the blood pressure increased and the BPV tended to increase.Conclusion The grade of hypertension is related to HRV and BPV.

Objective The aim of this study was to evaluate the efficacy and safety of combination therapy with low-dose pravastatin and fenofibrate in patients with combined hyperlipidemia. Methods One hundred eighty nine patients with combined hyperlipidemia were randomly assigned to receive 10 mg pravastatin (n=64) or 200 mg fenofibrate (n=63), or a combination of 10 mg pravastatin and 200 mg fenofibrate (n=62) for 12 weeks. The patients in the monotherapy groups (n=35) whose lipid levels were not controlled after 12 weeks were randomly assigned to receive 20 mg pravastatin, or 200 mg fenofibrate, or a combination of 10 mg pravastatin and 200 mg fenofibrate for another 12 weeks. Lipid levels and adverse effects were assessed. Results After 12 weeks treatments, serum TC, LDL-C and TG levels were reduced and HDL-C was increased more significantly in combination therapy group, compared with 2 monotherapy groups (all P

In order to study the role of prostaglandin E2(PGE_2)on the pathogenesis of candidal vaginitis,the effect of Candida albicans and histamine on the production of PGE_2 by peripheral blood mononuclear cells from patients with candidal vaginitis and normal controls,the effect of PGE2 on germ tube formation of Candida albicans,and the effect of PGE2 on Candida albicans adhering to vaginal ep- ithelial cells were observed.The results showed that:Candida albicans and histamine induced PGE2 synergistically,and the production of PGE2 increased markedly.PGE2 enhanced germ tube formation in Candida albicans,increased the number of Candida albicans adhering to the vaginal epithelial cells, and the pathogenicity of C.albicans.The above results indicate that PGE_2 plays a role in the pathogene- sis of candidal vaginitis.

In most universities the usage of digital information resources are not ideal.One reason is that primary audience groups of libraries——college students rarely use these resources.So we propose some measures and proposals for university libraries to provide the service of digital information resources for university students.

Objective To evaluate the long-term toxicity of endostatin injection to Beagle dogs,and to provide safety evidence for clinical experiments.Methods Twenty-four pure-blood Beagle dogs were assigned to four groups averagely with six dogs for each group,and the sex ratio was 1∶1.The animals in three of four groups received endostatin injection at low(1.6mg/kg),medium(6.3mg/kg)and high(25.0mg/kg)dosage,respectively,and the animals in the other group acted as control.The Beagle dogs were injected intravenously daily for up to 3 months with the exception of the dogs in control group.The indicators of ordinary toxic response,weight,electrocardiogram and hematology were collected,and the blood biochemical analysis,routine urinalysis and histopathologic examination were also performed.Results Only ordinary toxic responses such as anorexia and laxness were observed from l dog in high dose group,and simultaneously disappeared in 4 days.The weight of all Beagle dogs studied increased in a normal rate.No significant difference was found in each group of dogs on heart rate,electrocardiogram and indicators of urinalysis.No evident changes were observed in dogs on hematological and biochemical indexes.The pathological chances in different levels were observed in a dog's liver of low dosage group and a dog's kidneys of blank control group,but such changes were regarded as the spontaneous pathological changes,not related to the application of endostatin injection.Conclusion The non-toxic dose of endostatin injection on Beagle dogs was estimated to be 6.3 mg/kg under the present conditions.

Objective To evaluate the effect of optimizing surgerical patients’handover procedures using tracking methodology.Methods Two hundred patients hospitalized between July 2011 and May 2012 were assigned in the control group,in which their handover was conduced conventionally.Another 200 patients between April 2012 to February 2012 were assigned in the observation group,where their handover was done by tracking methodology.The two groups were compared in terms of incidence of adverse events at handover,time for handover and satisfaction of medical staff.Result Compared with the control group,the study group showed significantly lower incidence of adverse events,shorter surgical handover time and higher satisfaction degree of medical staff(P<0.05).Conclusion The tracking methodology can help to optimize handover procedures and quality control management, reduce the incidence of adverse events and improve working efficiency.

Objective To investigate the clinical characteristics,pathogenic causes and treatment outcomes of acute kidney injury (AKI) in very old patients in order to improving the diagnosis and treatment.Methods 39 AKI patients aged ≥80 years in the department of geriatric medicine of our hospital were enrolled and followed up for 3 months.Clinical and laboratory data were analyzed and the pathogenic causes as well as the treatment outcomes were summarized.Results Among the 39 very old patients,31(79.5％) were male,8(20.5％) were female,and the mean age was (93.5±4.6) years.33 (84.6％)patients had chronic kidney diseases.The pathogenic causes of AKI were mainly as follows:urological infections (71.8％),blood volume deficiency (48.7％),cardiac dysfunction (23.1％) and hypotension (15.4％).2 to 4 pathogenic causes were co present in 64.1％ patients.Renal function was improved and recovered in 69.2 ％ patients and the death rate was 25.6％ after treatment.The main causes of death were septic shock (30.0％),multiple organ failure (20.0％),massive gastrointestinal hemorrhage (20.0％) et al.Conclusions Most of the very old patients may suffer from AKI on the basis of chronic kidney disease.AKI is often induced by multiple pathogenic causes.The main factors leading to AKI are urological infections,followed by blood volume deficiency and cardiac dysfunction.Most patients with AKI can recover after the precipitating factors are removed and supportive treatments are administered in time.Septic shock is the main cause of death.

Objective To investigate the feasibility and promising applications of percutaneous transhepatic lymphosonography in detecting sentinel lymph nodes(SLNs).Methods Twenty five rabbits with VX2 tumor were included in this study.0.05 ml SonoVue was injected into the liver parenchyma at 12,3,6,9 points around the VX2 tumor.The situation of contrast-enhanced lymph-vessel emited from injected point and lymph nodes in hepatic portal or around tumor was observed,and then the position of the lymph nodes were detected with the help of the mark on the surface of the portal vein,caput pancreatis,collum vesicae biliaris.Methylene blue (MB) was injected in the same way as above.The injected points were massaged for five minutes,and then executed the experimental rabbits.The lymph nodes enhanced and all the lymph node dyed or not were taked out for recorded and pathologic examination.Results 34 SLNs were conformed by operation and pathological diagnosis in all the rabbits.All SLNs were confirmed pathologically,28 lymph nodes which were checked out by percutaneous transhepatic lymphosonography were all SLNs.In all the 31 lymph nodes which were checked out by MB,25 lymph nodes were SLNs and the rest were the second degree lymph nodes.The detection rate of percutaneous transhepatic lymphosonography (82.4％) and the MB (91.2％) showed no significant difference(P =0.169).There were 6 SLNs enhanced uniformitily in which 2 SLNs encroach by cancer cell and 22 enhanced asymmetrically in which 21 SLNs encroach by cancer cell.The sensitivity,specificity and accuracy of percutaneous transhepatic lymphosonography to detcect the SLNs benign or malignancy was 95.5％ (21/28),66.7％(4/6) and 89.3 ％ (25/28).Conclusions Percutaneous transhepatic lymphosonography is a reliable and noninvasive method to detect and estimate the SLNs of hepatic cancer.

Nitric oxide (NO), which is involved in the regulation of the cardiovascular system, nervous system, immune system, reproductive system, digestive system and other physiological activities, is an important biological substance with activity. Under normal physiological conditions, neuronal nitric oxide synthase (nNOS) can precisely regulate the nervous system NO production, release, diffusion and inactivation processes. But an excess of NO associates with the development of cerebral ischemia, Alzheimer's and Parkinson's psychosis nervous system diseases, while inhibition of nNOS activity can regulate the content of NO in vivo, and produce a therapeutic effect on some of the nervous system diseases. This review mainly describes the structure and regulation of nNOS and recent developments of small molecule inhibitors of nNOS.