AIM: To apply high throughput screening methods to research Xiaoxuming Decoction's effective components combination and its action mechanism. METHODS: We studied the effects of 240 sequential components of Xiaoxuming Decoction (L1-L120,A1-A120) on anti-A? neurotoxicity、anti-H_2O_2 damage、anti-glutamic acid damage and ?-secretase activity. RESULTS: We evaluated these results of screening comprehensively,and found several components of Xiaoxuming Decoction (L1-L40,A30-A60,A100-A120) had the potential effects of listed before.So the combination of these components was regarded as the effective components combination of Xiaoxuming Decoction for anti-Alzheimer's disease. CONCLUSION: Xiaoxuming Decoction had effective protection against Alzheimer's disease through multi-component and multi-target.High throughput screening methods will push the development of Chinese traditional compound prescription greatly.

AIM: To establish the model of aging rats and observe the effect of the group of effective components of Xiaoxuming Decoction(XXM)on aging rats. METHODS: D-galactose and rotenone were used to establish aging animal model.The ability of learning and memory were measured by using Morris water maze test.Then, the content of GSH and MDA,the activity of SOD,the activity of AchE and ChAT in rats'brain were measured. (RESULTS): D-galactose could induce aging like indicators in rats:decrease the content of GSH and the activity of SOD,and increase the content of MDA,but have no effect on AchE and ChAT.It showed that GEC could improve the ability of learning and memory and ameliorate biochemistry function in rats with aging induced by D-galactose. CONCLUSION: These results suggest that GEC of XXM could improve the responses of aging rats and these effects may be related to its ability of antioxidation.

Objective To clone human survivin gene and express survivin-an inhibitor of apoptosis proteins in Pichia pastoris eukaryotic expression system. Methods Full length survivin gene was amplified by PCR using survivin specific primers. The verified survivin gene by sequencing was subcloned into pPic9k. The recombinant plasmid was linearized by restriction enzyme cutting. The linear survivin gene was introduced into GS115/ His-cells by electroporation. The transformants were transferred onto YPD plates that contained different concentrations of G418 for screening the positive clones. The integrated survivin gene in positive clones was confirmed by PCR. Selected transformants were cultured in BMMY medium with 1 % methanol for inducing the expression of survivin protein. The expressed survivin protein was analyzed by ELISA. Results The cloned human survivin sequence was the same as that in the GeneBank. The recombinant pPic9k-survivin was constructed in Picha pastoris eukaryotic expression vector. After the linear digestion, the recombinant vector was introduced into GS115/ His-cells, the 6 positive clones against G418(4 mg/mL) were obtained and confirmed by PCR; the highest survivin protein was expressed when expressed for two days in 1 % methanol BMMY medium. Conclusions Improved survivin protein yield may be reached by modifying the experimental conditions. This will help to further study the biological functions of survivin and its roles in tumor developments.

ABSTRACT Recent research suggests that the ?-amyloid peptide (A?) is central to the pathophysi-ology of Alzheimers disease (AD). Amyloid plaques, primarily composed of A?, have significant neurotoxic effects. So it is therapeutic strategies for AD to lower the production of A? in the brain. A? is a product of catabolism of amyloid precursor protein ( APP) by ?-secretase and y- secretase. BACE ( ?-secretase) exhibits all the properties of the ?-secretase, and as the key rate-limiting enzyme that initiates the formation of A?, BACE is an attractive drug target for AD. The recent research of ?-secretase is reviewed in this paper.

Objective To quantify iron deposition in Alzheimer’s disease (AD),amnestic mild cognitive impairment (aMCI), and normal old people using susceptibility weighted imaging (SWI).Methods Sixty participants (22 aMCI,20 AD,18 normal con-trols)underwent conventional magnetic resonance imaging sequences and SWI using axial/oblique coronal sequences.Phase images were used to calculate bilateral iron deposition in 1 8 regions of interest (ROI)of every participant.The radian angle values were cal-culated and compared between the three groups.Results The radian angle value difference was significant between the aMCI and control groups in the left (L)-hippocampus,L-head of the caudate nucleus,R/L-lenticular nucleus ROIs.The radian angle value difference was significant between the AD and aMCI groups in the R/L-cerebellar hemisphere,R/L-hippocampus,R-red nucleus, R/L-thalamus and splenium of corpus callosum ROIs.Pearson correlation coefficients of the mini-mental state examination (MMSE)scores and many ROIs were significant.Conclusion Iron depositions in the hippocampus,head of the caudate nucleus,len-ticular nucleus and thalamus are significantly different between individuals with aMCI,AD and controls.Using SWI to quantify the iron deposition is a useful tool in detecting aMCI and AD.

0.05). The optimal advancement of CAMRS had a great variance from 33% to 100% of the maximum tolerable protraction among those patients. The titration-oriented oral appliance showed significantly better efficacy than the experience-oriented oral appliance (P

Epilepsy is a kind of brain dysfunction syndrome caused by so many reasons instead of a certain disease. Abnormal neuron discharge can cause epilepsy. Idiopathic epilepsy refers to epilepsy or epilepsy syndrome without any latent reasons but inherited trait. Idiopathic epilepsy is confirmed as an ion channelopathy at present. The first genemutation was found in idiopathic epilepsy in 1995, and a lot of genes coding either voltage-gated or ligand-gated ion channels have been found since then. In the present review, some new advances in research on ion channels dysfunction in idiopathic epilepsy are summarized.

Objective To study and analyze the clinical observation and nursing measures of prednisone acetate combined leflunomide in the treatment of IgA nephropathy.Methods 100 patients with IgA nephropathy treated in our hospital from February 2015 to September 2016 were randomly divided into the control group and the experimental group,with 50 patients in each group.Patients in the control group were treated with prednisone and dropped to 0.5 mg/kg after 12 weeks.The patients in the experimental group were treated with leflunomide and dropped to 20 mg after 3 days.The patients in the experimental group and the control group were treated for 3 months.The two groups of patients were given reasonable nursing measures, and compared the treatment effect.Results The effective rate of treatment in the experimental group was 94.0％, significantly higher than that in the control group (64.0％),with statistical difference(P<0.05).After treatment,the level of 24 hours proteinuria in the experimental group was (0.541±0.322)g/L, significantly lower than that of the control group (1.516±0.568)g/L,with statistical difference (P<0.05) .The adverse reaction rate of the experimental group was 0％, and that of the control group was 8％,with statistical difference(P<0.05).Conclusion Prednisone acetate combined leflunomide was effective in the treatment of IgA nephropathy, and can significantly improve the efficiency of treatment, and has clinical significance.

Objective ISSR Identification of genetic diversity in Aconitum carmichaeli by ISSR marker technique. Methods Genetic diversity between Jiangyou Radix Aconiti Lateralis Preparata and nine wild A. carmichaeli populations was determined by ISSR technique. Results Eight primers were selected to produce highly reproducible ISSR bands. Among 98 amplified bands, 68 showed polymorphism, the percentage of polymorphic bands (PPB) reached to 69.39%. Observed number of alleles (Na), effective number of alleles (Ne), Nei′s gene diversity index (H), and Shannon information index (I) were 1.693 9, 1.371 5, 0.230 8, and 0.353 0, respectively. A DNA profile was discovered with a single primer, ISSR 855, in which each of ten tested populations had its unique patterns and was distinguished from each other. Conclusion ISSR Method is suitable for DNA fingerprinting, identification , and genetic diversity analysis of A. carmichaeli.

Objective To evaluate the anatomical basis and techniques in laparoscopic liver resections. Methods Entered the study there were 16 patients with both their lesions located at liver margin, or the surface of the right liver, or left liver and their liver functions classified as Child B or above, including 8 cases of primary liver cancer, 3 cases of liver hemangioma, 1 case of cholangiocarcinama, 1 case of hepatic adenoma, 1 case of focal nodular hyperplasia, 1 case of liver abscess and 1 case of infected liver cyst. The procedures were performed, via 4～6 epigastric ports, by using electriccautery, ultracision or endo-cutter for transecting liver and by titanic clip or medical albumin glue for dealing with the cut surface. Results Laparoscopic liver resection was completed under pneumoperitoneum in 16 cases (18 lesions), including 8 cases of local liver resection and 8 cases of anatomical left liver resection. The operation time was (206?75) min and the blood loss was (354?282) ml. An intraoperative blood transfusion of 800 ml was required in 2 cases because of a blood loss of 1000 ml. The abdominal drains were left for (2～4) days and no bile leakage, bleeding or other complications happened. The postoperative hospital stay was (5.8?1.6) days. Conclusions Proper dealing with hepatic portal vessels is the key to the laparoscopic liver resection. In order to effectively control the bleeding during the partial hepatectomy or left hemihepatectomy, it is crucial to fully dissect the sub-grade hepatic portal vessels.