Objective To observe the inhibition effect of Shenkang 2 on rats'HPA axis,and provide theoretical basis for clinical application of steroid withdrawal and maintenance in the treatment phase.Methods To built the HPA axis suppression rat model by using high-dose glucocorticoids,when the hormone reduced to low-dose,traditional Chinese medicine Shenkang 2 were administrated.Serum ACTH,cortisol levels,adrenal index,adrenal pathological differences were observed before and after the treatment of Shenkang 2 among the treatment group,hormone control group and normal group.Results Serum ACTH,cortisol and adrenal index slowly recovered after hormone withdrawal in beth treatment group and the hormone control group,serum ACTH,cortisol and adrenal index in the treatment group rebounded faster than that in the control group,the atrophy of fascicular zone of adrenal cortex and cell disarrangement was lighter in the treatment group than that in the control group.Conclusions Shenkang 2 can improve the suppression effect of glucocorticoid-induced HPA axis suppression.

Objective To observe the effect of Shenkang-Ⅱ on hypothalamus-pituitary-adrenal axis (HPA axis) in nephrotic syndrome rats during high-dose glucocorticoids withdrawal, and provide a theoretical basis for clinical application of Shenkang-Ⅱ during the withdrawing and maintaining stages of glucocorticoids in the treatment of nephrotic syndrome. Methods The models of nephrotic syndrome in rats were established with adriamycin, and treated with high-dose glucocorticoid which can cause HPA axis suppression. After the HPA axis was suppressed, the hormone was reduced gradually. At the same time, the rats were treated by intragastric administration with different doses of Shenkang-Ⅱ. The changes of serum ACTH, cortisol and adrenal morphological in large dose of Shenkang-Ⅱ group, small dose of Shenkang-Ⅱ group, hormone control group, nephrotic syndrome model group and normal group were observed after two weeks. Results In the stage of withdrawing glucocorticoids, there were some amelioration in the changes of serum ACTH, cortisol in every group. After 2 weeks, those changes didn’t return to normal level. However, compared with the level of hormone control group, there were obvious increases in the levels of serum ACTH and cortisol in the large and small dose of Shenkang-Ⅱ group (P

Objective To investigate the association between vascular risk factors and the location of intracranial artery stenosis (anterior versus posterior).Methods Magnetic resonance angiography(MRA) were examined in 374 acute stroke patients.It was divided into two groups (anterior and posterior intracranial artery stenosis group).Analyzed possible risk factors.Results Univariate analysis showed there were differences between anterior and posterior intracranial artery stenosis in systolic blood pressure,history of smoking,drinking and stroke status,and national institutes of health stroke scale (NIHSS) score at discharge,short-term prognosis,serum creatinine,triglyceride,low density lipoprotein cholesterol (LDL-C) (P ＜ 0.05).In multivariate logistic regression analysis,high blood sugar (OR =1.135,95％ CI:1.003-1.284),history of stroke(OR =1.133,95％ CI:1.007-1.276),good short-term prognosis (OR =5.987,95％ CI:1.441-24.873) were preferentially related to anterior intracranial artery stenosis,whereas history of smoking (OR =0.003,95 ％ CI:0.000-0.376),high serum creatinine values (OR =0.509,95 ％ CI:0.328-0.790),high triglyceride values (OR =0.054,95％ CI:0.004-0.645) and high LDL-C values (OR =0.096,95％ CI:0.015-0.608) were preferentially related to posterior intracranial artery stenosis.Conclusion Vascular risk factors appeared to exert different effects of risk for anterior and posterior intracranial artery stenosis.

Objective To investigate the treatment delay in patients with acute cerebrovascular disease in different levels of hospital in Qingdao area and to analyze its influencing factors. Methods A total of 700 patients with acute cerebrovascular disease from the city, county and township hospitals in Qingdao were selected from June 2008 to February 2009. A questionnaire survey was used to investigate and analyze the visiting time in patients with stroke and its possible influencing factors. Results The average visiting rate in patients with acute cerebrovascular disease was 30% within 4.5 hours after the onset in Qingdao area. The average visiting rate of the township hospitals was lowest (26%), of the city hospitals was moderate (28%), and of the county hospitals was highest (36%). For the city hospitals, the male patients usually delayed the visiting. The patients with high school or higher education level, urban medical insurance, 120 transportation, and the National Institutes of Health Stroke Scale (NIHSS) ＜ 3 could usually he treated timely; For the county hospitals, the patients with secondary school or lower education level, 120 transportation, and NIHSS ＜3 could usually be treated timely. For the township hospitals, the patients with NIHSS ＞ 7 and unconsciousness could usually be treated timely. Conclusions The patients with acute cerebrovascular disease in the city, county and township hospitals in Qingdao area had significant treatment delay. Of those, 120 transportation and higher levels of education could decrease the treatment delay of patients. Therefore, perfecting stroke emergency network, raising people's level of education, and strengthening propaganda and education on stroke knowledge in all levels of hospitals are essential for timely treatment of stroke patients.

Mortality of patients with malignant middle cerebral artery infarction (mMCAI) is as high as 41％ to 78％ with the conservative treatment in the intensive care unit.Malignant edema caused tentorial herniation is the most common cause of resulting in the death of patients.Some evidence supports the hemicraniectomy for the treatment of patients with mMCAI.The patients must receive supportive and adjuvant therapies before surgical decision making.Therefore,the prediction and intensive care of mMCAI have a very important significance.This article reviews the predictive factors and intensive care of mMCAI.

Strokes due to atrial fibrillation (AF) are common and frequently devastating.While oral anticoagulant agents are the mainstay in the prevention of embolic events,they have several limitations and not all patients can tolerate them long term.The left atrial appendage (LAA) has been identified as the source of thrombus formation in nonvalvular AF.Several LAA closure devices have been developed,they have been successful in stroke prevention in patients with nonvalvular AF and fewer periprocedural complications.This article reviews the application of percutaneous left atrial appendage closure for stroke prevention in patients with nonvalvular AF.

Objective To observe and explore clinical efficacy ofTianma-Gouteng decoction combined valsartan in the treatment of patients with renal hypertension and its effects on renal function. Methods A total of 130 patients with renal hypertension were enrolled and randomly divided into a study group (68 patients) and a control group (62 patients). Both groups were given prescription of lower sodium diet, exercising and enalaprilscheme. On this basis, the control group plus valsartan, and the study group was further added withTianma-Gouteng decoction. After 2 courses treatment, renal function, and blood pressure of both groups were compared, and clinical efficacy on blood pressure were evaluated.Results After treatment, the SBP (126.8 ± 9.1 mmHg vs. 134.1 ± 8.8 mmHg,t=4.648), DBP (82.4± 5.0 mmHgvs. 85.3 ± 5.4 mmHg, t=3.167), Scr (148.5 ± 46.3μmol/Lvs. 172.1 ± 52.0μmol/L, t=2.723), BUN (8.3 ± 2.7 mmol/Lvs. 9.7 ± 3.1 mmol/L,t=2.734) and 24hAlb (1.7 ± 0.6 gvs. 1.9 ± 0.7 g,t=2.209) in the study group were significantly lower than control group (P<0.05 orP<0.01). The total effective rate in the study group was significantly increased than that in the control group (91.2%vs. 79.0%;χ2=0.383,P=0.050).Conclusion Valsartan combined with Tianma-Gouteng decocntion can reduce blood pressure, and alleviate the kidney damage effectively.

Objective To investigate the clinical effect ofYishen-Lishi formula combined with conventional treatment for gouty nephropathy.MethodsA total of 118 patients with gout nephropathy were included and divided randomly into a conventional treatment group (n=60) and a combined treatment group (n=58) according to the random number table method. The patients in the conventional treatment group were treated with allopurinol and those in the combined treatment group were treated with allopurinol and Yishen-Lishi formula, both for 3 months. Serum uric acid, blood urea nitrogen (BUN), serum creatinine (SCr), 24 h endogenous creatinine clearance (CCr), 24 h urine protein, urineb2 microglobulin, serum triacylglycerol (TG), serum total cholesterol (TC), serum apolipoprotein A1, 24 h urine volume and urine pH were determined. The therapeutic effect was evaluated.ResultsThe urine pH (6.43 ± 0.6vs.6.21 ± 0.4;t=2.351,P=0.020), 24 h urine volume (3.3 ± 0.4vs.2.8 ± 0.6 L;t=5.308,P<0.001), 24 h CCr (1.61 ± 0.11 ml/svs. 1.33 ± 0.10 ml/s;t=14.477,P<0.001) and serum apolipoprotein A1 (1.90 ± 0.40 g/Lvs. 1.01 ± 0.33 g/L;t=13.203,P<0.01) in the combined treatment groupwere significantly higher than those in the standard treatment group. The serum uric acid (312.01 ± 33.56mmol/Lvs.350.12 ± 35.21 mol/L;t=6.015,P<0.001), BUN (6.22 ± 0.91 mmol/Lvs.11.50 ± 4.01 mmol/L;t=9.586,P<0.001), SCr (87.32 ± 13.90mmol/Lvs.122.54 ± 18.37mmol/L;t=11.743,P<0.001), 24 h urine protein (0.7 ± 0.2 gvs.1.2 ± 0.5 g;t=7.087,P<0.001), urineb2 microglobulin (220.3 ± 90.3mg/Lvs.330.1 ± 90.1mg/L;t=6.611,P<0.01), serum TG (5.11 ± 0.50 mmol/Lvs.6.30 ± 0.50 mmol/L;t=12.923,P<0.001), serum TC (1.50 ± 0.50 mmol/Lvs.2.30 ± 0.52 mmol/L;t=8.689,P<0.001) in the combined treatment group were significantly higher than those in the standard treatment group. The total effective rate inthe standard treatment group was significantly higher than those in the standard treatment group (89.7%vs.70.0%;χ2=5.871,P=0.015). ConclusionYishen-Lishi formula combined with conventional treatmentmay protect renal function, and reduce the blood lipids, its therapeutic effect is superior to conventional treatment alone in patients with gouty nephropathy.

Objective: To investigate the mechanisms of anti-tumor cytotoxicity of human ??T cells activated by Mycobacterium tuberculosis antigen (Mtb-Ag) . Methods: The peripheral blood mononuclear cells (PBMC) of healthy donors were stimulated by Mtb-Ag in vitro to activate preferentially ??T cells that were expanded in IL-2 contained medium.The high purified ??T cells were isolated by the positive selection on MACS separator. The expression of mRNA of perforin, granzyme B and Fas Ligand in purified ??T cells were measured by RT-PCR technique. Fas Ligand on ??T cells and Fas molecule on tumor cells were detected by flow cytometry. The MTT assay was used to measureanti-tumor cytotoxicity of ??T cells. The inhibitory effects of concanamycin A (CMA) for perforin/granzyme pathway, and brefeldin A (BFA) for Fas/Fas ligand pathway on cytotoxicity of ??T cells were observed. Results: The mRNA of perforin and granzyme B and Fas ligand were highly expressed in purified ??T cells. The cytotoxicity of ??T cells against K562 and PG that expressed low level of Fas molecule (6.5% and 7.8%) was remarkably inhibited by pretreatment of the ??T cells with CMA (200 nmol/L) by 72% and 76%, respectively, while the BFA(30 ?mol/L) showed less inhibitory effects by 32% and 25%, respectively; However, it was showed that the BFA (30 ?mol/L) preferentially inhibited the cytotoxicity of ??T cells against tumor cell lines Raji and A375 that expressed high level of Fas molecule on cell surface (98.5% and 70.6%, respectively).Conclusion: Preferentially, granule exocytosis was a main mechanism by which the Mtb-Ag activated ??T cells showed cytotoxicity aganist tumor cells that expressed low level of Fas molecule, whereas both Fas/Fas ligand pathway and granule exocytosis were involved in the cytotoxicicty of Mtb-Ag activated ??T cells against the tumor cells that expressed high level of Fas molecule.

Objective To improve the serum quality controlling level ,in order to regularize and standardize the laboratory processes .Methods Gallery of hemolysis ,lipidemia or icterus serum specimens was established by Roche cobas p612 QSI camera system .The trouble serum specimens were screened out through taking photos of interfere serum and comparing with the gallery . The serum indexes of hemolysis ,lipidemia and icterus were detected respectively as reference information of inspection report .Com‐paring the results of 16 710 specimens detected by system screening and visual judgment ,the accuracy of QSI camera system was verified .Results 195 trouble serum pictures were elected in the gallery .The compliance rates of hemolysis ,lipidemia and icterus se‐rum specimen between QSI camera system and visual judgment were 94 .2% ,87 .4% ,and 60 .9% respectively .Conclusion The QSI camera system can replace visual judgment to screen the trouble serum specimens .