OBJECTIVE:To establish a method for determining plasma concentrations of tanshinone ⅡA and use it for pharma-cokinetics study of tanshinone ⅡA in Beagle dogs. METHODS:HPLC was performed on the column of Phenomenex Luna C18, with the mobile phase of water(5 mmol/L of ammonium acetate+0.05% H3PO4)-acetonitrile at flow rate of 1.0 ml/min;the detec-tion wavelength was 270 nm,column temperature was 40 ℃ and the volume was 20 μl. 9 Beagle dogs were randomly divided into tanshinone ⅡA low,medium and high dose groups(2,4 and 8 mg/kg),blood was respectively taken from forelimb venous blood to determine the plasma concentration before and after 2,5,10,15,20,30,45,60,75,90 and 120 min of iv administration. DAS 2.0 software was used to calculate the pharmacokinetic parameters. RESULTS:The linear range of tanshinoneⅡA was 0.097 5-12.50 μg/ml (r=0.999 8);the RSDs of precision and stability tests were all less than 10%;the method recovery was 100.4%-107.2%,and extraction recovery was 90.2%-92.3%. The t1/2αin tanshinoneⅡA low,medium and high dose groups were respective-ly(1.01±0.27),(1.03±0.46)and(1.51±0.65)min;t1/2β were respectively(16.25±4.78),(22.42±9.32)and(24.45±12.02) min;AUC0-120 min were respectively(150.88±45.25),(305.44±92.55)and(643.67±178.27)μg·min/ml;and CL were respective-ly(12.01±4.36),(12.78±5.06)and(12.17±5.41)ml/(min·kg). CONCLUSIONS:The precision,stability and recovery of the method are all in line with the determination requirements of biological samples,and tanshinone ⅡA showed a good linear relation-ship with dose in Beagle dogs in AUC0-120 min.

Non-alcoholic fatty liver disease (NAFLD) has become a new health issue in the world due co its increasing incidence rate,and in particular,nonalcoholic steatohepatitis is progressive and has poor prognosis.Therefore,there is an argent need to search for the methods for the prevention of disease progression and treatment.Bile acid,as an important metabolite and signal molecule,can adjust the metabolism of lipids and carbohydrates and energy balance inside and outside the liver.Bile acid interacts with is receptors,such as the farnesoid X receptor and Takeda G-protein coupled receptor 5,bile acid transporter,and gut microbiota and is involved in the pathogenesis of NAFLD and nonalcoholic steatohepatitis at different levels.This article summarizes the research advances in the pathogenesis of bile acid-related NAFLD and related pharmacotherapy.

0.05 ), However, all pasameters showed significantly milder or lower in interferon ? treated group than incontrol group at the 6th, 12th week( P

Objective To investigate the clinical characteristics of skin lesions of tsutsugamushi disease.Methods The skin lesions and clinical characteristics of 17 hospitalized patients with tsutsugamushi disease were analyzed. Results Of the patients, 88.2% (15/17) developed eschar and skin ulcer, 64.7% (11/17) had skin rashes. The patients often developed solitary, painless and nonpruritic eschar 4 to 10 days after the occurrence of fever, with indefinite locations and average diameter of 1.2 cm (range: 0.5 - 3.0 cm). The eschar was covered with a black and dry surface and surrounded by a ring-shaped erythematous halo, and usually shedded 5 to 9 days after the appearance with the formation of shallow ulcer. Superficial lymphadenectasis was observed near the eschar in 80% of the patients with eschar, and no eschar was observed at the first visit in 66.7% of the patients. Skin rashes mainly included nonpruritic congestive papules (45.5%) and maculopapular rashes (54.5%), and often subsided 2 to 5 days after emergence. Conclusions The skin lesions of tsutsugamushi disease include eschar and skin rashes. Eschar is an important characteristic and highly suggestive of this entity.

Objective To evaluate left atrial(LA)function in patients with prophase essential hypertension (EH)by left atrial volume tracking(LAVT)method.Methods Thirty prophase EH patients and 35 healthy subjects(control group)were enrolled in this study.Ultrasound LAVT(Hitachi EUB-6500)was applied to display and analyze the LA volume loop imaging on the standard LV apical two and four chamber views.The maximal LA volume at end-systole(LAVmax),LA volume at the onset of ECG-P wave(LAVP),the minimal LA volume at end-diastole(LAVmin)from the LA volume loop were recorded,and body surface area was used to revise these volume indexs(LAVImax,LAVIp,LAVImin).LA pass,act and total empting volume(LAVIpass,LAVIact,LAVItotal)and empting rate(%LAVIpass,%LAVIact,%LAVItotal),effective pass and act erupting rate(%eLAVIpass,%eLAVIaet),and the proportionality of pass empting volume and act empting volume were caculated.Results The LAVIp,LAVIact,LAVItotal,%LAVIact,%LAVItotal,%eLAVIact in the prophase EH group were significantly higher than those in the control group,wheras the LAVIpass,%LAVIpass,%eLAVIpass,LAVIpass/act were lower(all P＜0.05,or P＜0.01).Conclusions The LA volume change in prophase EH is the act empting volume increased at end-diastole in main,LAVT is a potientially useful tool to evaluate the function of LA.

Objective To compare the effects of ureteroscopic lithotripsy (URL), minimally invasive percutaneous nephrolithotomy ( MPCNL) , retroperitoneal laparoscopic ureterolithotomy ( RLU) and open ureterolithotomy (UL) for the treatment of complex upper ureteral calculi. Methods The data of 281 patients with complex upper ureteral calculi from January 2005 to January 2013 were retrospectively reviewed. 48 patients of them received treatment of URL, 113 patients received MPCNL, 67 patients received RLU and other 53 patients received UL. Results Success rates of treatment at the first time were:URL 62.5% (30/48), MPCNL 92.9%(105/113),RLU 100%(67/67) and UL 100%(53/53) . The mean blood losses during the operation were:URL (9.2 ± 1.4) mL,MPCNL (72.5 ± 5.8) mL,RLU (43.1 ± 8.5) mL and UL (100.5 ± 9.2) mL. The average operation time of URL group was shorter than three other groups, and the difference was statistically significant (P< 0.05) . The average hospital stay of URL group was also shorter than three other groups ( < 0.05) . The difference was not statistically significant in complications among four groups after operation ( >0.05) . Conclusion Clinical characteristics of patients and individual require ment should be considered comprehensively before an individual treatment choice is made for the treatment of complex upper ureteral calculi.

Objective To study the image examination of renal injuries and discuss renal explorative indications so as to spare the kidney or nephron as much as possible and improve curative rate of diagnosis and treatment. Methods An analysis was done on 286 cases that included 231 cases with close injury, 54 with open injuries, one with iatrogenic injury and 91 with combined injuries. Of all, 212 cases were examined by B-ultrasonography, 163 by CT and 132 by intravenous urography(IVU) and 6 by digital subtraction angiography(DSA); 202 cases were treated with conservative treatment and 84 with operation. Results The diagnostic positive rates of IVU, B-ultrasonography and CT were 67.4%, 72.2% and 87.7%, respectively. Among the operation cases, 42 cases were treated by renal repair, 12 by partial nephrectomy and 30 by nephrectomy. The operation rate was 29.4% and the nephrectomy rate 35.5%. Interventional treatment of the kidney was carried out in three cases. Conclusions For renal injury cases, the first and most important step is to evaluate the injury condition so as to correctly determine whether an operation exploration is needed. The injury conditions and severity are mainly determined by the image examinations that change according to injury cause, injury type and clinical symptoms. Renal exploration or not, and the operation time exert great influence on renal reservation rate and complication rate.

Objective:To observe and compare the therapeutic effect of metoprolol by routine increasing dose method and rapid titration method on acute myocardial infarction (AMI).Methods:A total of 60 inpatients,who were di-agnosed with AMI within 24h and without contraindications for metoprolol,were randomly divided into two groups:routine therapy group (received metoprolol using routine methods,the dose was added in seven days)and rapid ti-tration group (metoprolol was added in three days using titration).The dosage maintained with 190 mg/d after both groups reaching the target dose of 190mg/d;then therapeutic effects were observed in both groups.Results: ①There were no re-myocardial infarction,rehospitalization caused by heart failure and sudden death etc.in both groups;② Patients received echocardiography in outpatients after three months.Compared with routine increasing dose group,there was significant reduction in left ventricular end-diastolic diameter [LVEDd,(55.00±7.56)mm vs.(50.00± 5.81)mm]and significant rise in left ventricular ejection fraction [LVEF,(49.13 ± 10.18)% vs. (57.84±10.34)%]in rapid titration group,P <0.01 both.Conclusion:Rapid titration method could make the pa-tients rapidly reach the targeted dose of metoprolol and inhibit renin release earlier,block the renin-angiotensin sys-tem,and improve myocardial remodeling and cardiac function.

Objective To explore the changes and significance of serum tumor necrosis factor-?(TNF-?),interleukin-1?(IL-1?),IL-6 and IL-10 in rats with acute necrotizing pancreatitis(ANP).Methods Sixty-four Wistar rats were randomly divided into 2 groups: sham operation group(SO group n=32) and ANP group(n=32).The ANP model was established by using retrograde injection of Sodium Taurocholate into cholangiopancreatic duct.The changes of serum endotoxin(ET),TNF-?,IL-1?,IL-6 and IL-10 in different groups and different time points were observed.Results The levels of serum ET,TNF-?,IL-1?,IL-6 and IL-10(except IL10 of ANP group in 16h) in rats of ANP group were significantly higher than those of SO group(P

According to request of the socialism outlook for honor and shame to university students,this article elaborated the principles,connotation and implementation of honesty evaluation system so as to make a beneficial exploration for the honesty education of university students.