Ninety nine patients with trigeminal neuralgia (TN,n =59) or hemifacial spasm (HFS,n =40) underwent microvascular decompression (MVD) treatment in our hospital from January 2012 to December 2015,and were followed up for more than 1 year.Total 94 patients (94.9％) were cured after the surgery,including 55 TN cases (93.2％) and 39 HFS cases (97.5％).The 1-year follow up showed that total 98 patients (99.0％) were cured,including 58 TN cases (98.3％) and 40 HFS cases (100.0％).Among the HFS cases,1 patient got gentle spasm,1 patient got hearing deficit,1 patient got light facial palsy after the operation,and all recovered completely during the follow-up.Among the TN cases,4 patients got pain attack infrequently after the operation,3 of them recovered during the follow-up,and the symptoms were satisfactorily controlled by taking carbamazepine in rest 1 case.No cases had cerebrospinal fluid leakage or intracerebral infection.The results indicate that MVD is an effective treatment of HFS and TN with less surgical injury or complications.

Objective To study the activity of aminopeptidase N (APN) in the bile of patients with cholesterol gallstones (CGS) and rabbits fed with lithogenic diets (LD) to explore the lithogenic role of APN in the formation of gallstones. Methods Enzymatic activity of APN and lipid concentrations in bile of investigated CGS patients and LD fed rabbits were measured. The relationship between the activity of APN and CSI was statistically analyzed.Results APN activity in CGS patients′ gallbladder (GB) and bile duct (BD) biles 〔(66 0?24 1)*!U/ml and (38 4?9 4)*!U/ml〕 as well as in LD fed rabbits′ GB and BD biles 〔(14 5?4 08)*!U/ml and (9 13?1 67)*!U/ml〕 were significantly higher than that in the corresponding biles of their clinical and experimental control (CC and EC) groups 〔(23 0?7 7)*!U/ml〕 in GB bile of CC group and 〔(6 05?0 95)*!U/ml and (3 09?0 92)*!U/ml〕 in EC group. All P values were less than 0 05. A statistical positive correlation was found between the APN and CSI value in each of the groups.Conclusions It is more likely that APN might play certain role in the early neucleating period of the pathogenesis of gallstones based on its proneucleative potential and measurement of APN activity may serve as a predictive marker among patients with high risk of gallstone formation.

OBJECTIVE:To discuss the significance of therapeutic drug monitoring(TDM)for rational administration of anti-epileptic drugs and to probe into the cognition of clinic staff on TDM.METHODS:Access database of antiepileptic drugs was established to analyze the TDM data of antiepileptic drugs used from 2001 to 2006.RESULTS:The TDM cases of anti-epileptic drugs increased year by year.The proportions of effective concentration,high blood drug concentration and low blood drug concentration derived from TDM data showed that it is quite necessary to conduct blood drug concentration monitoring.But the lack of individual medication information has hindered the development of patients' individualized medication of anti-epileptic drugs.CONCLUSION:The application of TDM is increasingly widespread;however,the joint efforts of physicians and pharmacists are still needed to ensure individualized medication of anti-epileptic drugs.

AIM To establish an HPLC method for the simultaneous content determination of calycosin-7-glucoside,ononin,calycosin,formononetin,oxypaeoniflorin,alibiflorin and benzoylpaeoniflorin in Sangqishouwu Tablets (Talxilli Herba,Astragali Radix,Polygoni multiflori Radix Praeparata,etc.).METHODS The analysis of methanol extract of this drug was performed on a 25 ℃ thermostatic Diamonsil C18 colmn (250 mm × 4.6 mm,5 μm),with the mobile phase comprising of acetonitrile-0.02％ phosphoric acid flowing at 0.9 mL/min in a gradient elution manner,and the detection wavelengths were set at 230 nm and 254 nm.RESULTS Seven constituents showed good linear relationships within their own ranges (r ≥ 0.999 2),whose average recoveries were 97.13％-100.03％ with the RSDs of 0.69％-1.47％.CONCLUSION This sensitive,accurate and specific method can be used for the rapid quality control of Sangqishouwu Tablets.

The beta-secretase is one of prospective targets against Alzheimer's disease (AD). A three-dimensional quan titative structure-activity relationship (3D-QSAR) model of Hydroethylamines (HEAs) as beta-secretase inhibitors was established using Topomer CoMFA. The multiple correlation coefficient of fitting, cross validation and external validation were r2 = 0.928, q(loo)2 = 0.605 and r(pred)2 = 0.626, respectively. The 3D-QSAR model was used to search R groups from ZINC database as the source of structural fragments. As a result, a series of R groups with relatively high activity contribution was obtained to design a total of 15 new compounds, with higher activity than that of the template molecule. The molecular docking was employed to study the interaction mode between the new compounds as ligands and beta-secretase as receptors, displaying that hydrogen bond and hydrophobicity played important roles in the binding affinity between the new compounds and beta-secretase. The results showed that Topomer CoMFA and To pomer Search could be effectively used to screen and design new molecules of HEAs as beta-secretase inhibitors, and the designed compounds could provide new candidates for drug design targeting AD.
Amyloid Precursor Protein Secretases ; antagonists & inhibitors ; Drug Design ; Hydrophobic and Hydrophilic Interactions ; Ligands ; Molecular Docking Simulation ; Quantitative Structure-Activity Relationship

Objective To investigate the method of the separation gel vacuum tube combined with matrix‐assisted laser desorp‐tion/ionization time of flight mass spectrometry system (VITEK‐MS) for fasting identifying positive blood culture bacteria .Methods Fifty cases of positive blood culture by the BacT/ALERT3D blood culture system and Gram‐negative bacteria by direct staining in the First Affiliated Hospital of Guangzhou University from March to October 2015 were collected .The bacteria were directly ex‐tracted from the blood culture bottle by the separation gel tube and performed the fast identification by adopting the VITEK‐MS system .At the same time the bacteria were performed the subcultivation and identification .then the coincidence of this method was compared .Results Among 50 cases of Gram‐negative bacteria by positive blood culture ,21 cases of bacteria were not identified ,29 cases of bacteria were identified ,the positive rate was 58 .0% .the coincidence rate with the conventional identification results was 96 .6% ;the method of separation gel combined with VITEK‐MS was nearly 24 h in advance compared with the traditional method . Conclusion Adopting the separation gel vacuum tube combined with VITEK‐MS for identifying bacteria has the higher coincidence rate of positive blood culture Gram negative bacteria ,can greatly shorten the identification time ,this method is rapid and simple .

Aim To study the absorption mechanism of apigenin-7-O-glucronide, 3,4-Dihydroxycinnamic acid and chlorogenic acid in Erigeron breviscapus extract ( Ebe) by Caco-2 cell monolayer model. Methods The three active ingredients were quantified by UPLC-MS/MS method, and the effect of Ebe concentrations, conveying times, pH values and P-glycoprotein inhibi-tor on the transport of three active ingredients were also investigated. Results Apigenin-7-O-glucronide and chlorogenic acid in Caco-2 cell monolayer model were time-dependent and concentration-dependent. The 3, 4-Dihydroxycinnamic acid in Caco-2 cell uptake was concentration-saturate and P-glycoprotein inhibitor was involved in the uptake process. Conclusion The mechanism of apigenin-7-O-glucronide and chlorogenic acid absorption in cells is mainly through passive trans-port, and the absorption of 3, 4-Dihydroxycinnamic acid is mainly realized by the carrier transport.

Objective:To discuss the screening results and clinical characteristics of children of Miao and Dong nationalities with mediterranean anemia in ethnic minority areas of Qiandongnan State of Guizhou Province,and to clarify the differences of the mediterranean anemia among different minorities.Methods:A total of 1 623 children of Miao and Dong nationalities with mediterranean anemia in minority areas of Qiandongnan State were selected by multistage stratified random sampling method;quantitative analysis of HbA2 and HbF was used to screen the selected children with mediterranean anemia initially;phenol chloroform extraction method was applied to extract the DNA from the children with mediterranean anemia;ASO/RDB-PCR reverse dot blot hybridization method was used to analyze the gene characteristics of the children with mediterranean anemia.Results:A total of 1 623 children of Miao and Dong nationalities were selected as the subjects.Among 938 children with Miao nationality,there were 18 children with positive α-mediterranean anemia and 36 children with positive β-mediterranean anemia,and the positive detection rate was 1.92%.Among 685 children with Tong nationality,there were 13 children with positive α-mediterranean anemia and 24 children with positive β-mediterranean anemia,and the positive detection rate was 3.50%.The detection rates of composite of α-and β-mediterranean anemia in the children of Miao nationality and Tong nationality were 1.49% and 4.61%.There was no significant difference in the detection rates of different kinds of mealiterranean anemia between two nationalities (P<0.05).The major gene mutations in α-mediterranean anemia were——SEA/-αα and-α3.7,and the major gene mutations in β-mediterranean anemia were CD17/N and CD14-15/N,while the major gene types of the composite of α-and β-mediterranean anemia were——SEA/β41-42 and——SEA/β17.There was no difference in the positive rates of major gene types of different kinds of mediter ranean anemia between two nationalities(P<0.05).Conclusion:There is no difference in the positive rate of children of Miao and Dong nationalities with mediterranean anemia in minority areas of Qiandongnan State.CD17/N,——SEA/-αα and ——SEA/β41-42 are the major gene types of α-,β-,and αβ-mediterranean anemia,respectively.

0.05).In patients with HSPN capillary wall staining for IgA was more frequently found than in IgAN(71.0% vs 43.5%,P=0.013).With creatinine level doubling as the end point,the follow-up data indicated that the renal survival was 87.1% in HSPN and 91.9% in IgAN and there was no statistically significant difference between HSPN and IgAN(P=0.481).Conclusion:Although significant pathological difference was found between HSPN and IgAN,the renal clinical manifestations and long term outcome were similar between the two diseases in adults.

To observe the effect of various doses of oil of Piper longum unsaponifiable matter (OPUM) to cholesterol gallstones in experimental mice. C57BL/6 mice (n = 60) were randomly divided into 6 groups: control group, model group, OPUM (15, 30 and 60 mg x kg(-1)) group and ursodeoxycholic acid (UDCA, 60 mg x kg(-1)) group, administered for 10 weeks. The level of serum lipid and liver function enzymes were tested. The gallbladder was removed and bile was obtained by centrifugation. Next, the levels of the bile total cholesterol (TC), phospholipid (PL) and bile acid (TBA) were measured. The indicators of lipid peroxidation were determined and cholesterol saturation index (CSI) was calculated. The liver histological changes were observed by HE staining. The results showed that serum TC, TG (triglycerides) and AST (aspartate transaminase) contents, gallbladder cholesterol crystallization and CSI increased significantly (P < 0.05). In addition, the activity of SOD decreased significantly and MDA content increased significantly in liver (P < 0.05). HE staining results showed that the hepatic cord disorder and intracellular lipid droplets increased significantly. All results indicate that lithogenic diet lead to the formation of cholesterol gallstones. In OPUM (30 and 60 mg x kg(-1)) group, serum TC, TG and AST content, gallbladder cholesterol crystallization and CSI decreased significantly, the activity of SOD increased significantly and MDA content decreased significantly. HE staining results showed that OPUM can improve the morphology of liver cell, reduce the degree of hepatic cord disorders and restore the cell morphology close to normal. The cause of OPUM prevents cholesterol gallstone formation maybe due to protect the integrity of the liver cells, lower CSI, and reduce cholesterol crystal formation and hence prevent cholesterol gallstone formation.