Acute Coronary Syndrome ; etiology ; Aortic Valve Insufficiency ; Female ; Heart Valve Prosthesis ; adverse effects ; Humans ; Middle Aged ; Prosthesis Failure

Ca2+ leak via ryanodine receptor type 2 (RyR2) can cause potentially fatal arrhythmias, and RyR2 mutations have been shown in the aetiology of catecholaminergic polymorphic ventricular tachycardia. We report the case of a patient with catecholaminergic polymorphic ventricular tachycardia resulting from a RYR2 mutation who had not only typical electroencephalogram changes, but also epileptiform discharges in electroencephalogram. We believe the changes were closely related to the RYR2 mutation.

Objective To investigate the content and changes of fluoride in corn and pepper, to evaluate the effect of prevention and control measures, and to provide a basis for adjusting the prevention and control strategy. Methods In 2013, according to the different directions of east, west, south, north and center, 5 townships were selected from each coal-burning-borne endemic fluorosis areas in all 23 counties (cities, districts), and 3 villages was randomly selected from each township. Household samples of corn and dried pepper in 10 households were collected to detect fluorine content. The results of 14 counties were compared with the 2007 survey data. Results A total of 884 and 3379 samples of corn and pepper were collected, and the median fluorine content was 1.26 and 9.15 mg/kg, the range was 0.50~254.59 mg/kg and 0.50~3701.88 mg/kg, respectively. Compared with the survey data of 2007, the median fluoride content of corn of 14 counties decreased by nearly 50%, and the median amount of pepper was reduced by more than 80%. The differences were statistically significant (mg/kg:corn 1.36 vs 2.63, dried pepper 9.70 vs 55.31, Z = 3.28, 9.13, P<0.05). Conclusion The fluoride content of corn and pepper in Guizhou Province is significantly lower, but it is still relatively high in some coal-burning-borne fluorosis counties (cities, districts).

Objective To analyze the quality control measures on urinary fluoride testing in the implementation,and to provide experience in quality control for testing activities.Method According to the Determination of Fluoride in Urine-Ion Selective Electrode Method (WS/T 89-1996),focusing on ways to complete testing all the samples in a short time,implementing internal quality control measures in the testing before,during and after the implementation by different ways as blank experiment,standard substance detection,personnel parallel experiment,paralleled detection,instrument comparison and sample test repeat,were carried out.Results The test results of blank experiment were lower than the lowest detection limit;the test results of standard material were within the scope of the standard reference,there was no significant difference between the mean value and the reference value (t =0.01,0.00,0.02,all P ＞ 0.05),|Z| values were all less than 1;the results of personnel parallel experiment,paralleled detection,instrument comparison test results and sample test repeat were not significantly different statistically (all P ＞ 0.05);the results of instrument comparison and sample test repeat were not significantly different statistically (t =0.129,0.034,all P ＞ 0.05).A total of 9 123 urine samples were tested,the geometric mean of urinery fluoride was 0.58 mg/L.Conclusion Different quality control measures should be implemented through all the testing,control personnel errors,instruments,and reagents,etc,to ensure the quality of the entire test results.

Epilepsy is a complications of brain injury or stroke,and is a common diseases in reha-bilitation or neurology department.Transcranial magnetic stimulation as a classical treatment means for stroke or brain injury,but also can promote the recovery of epilepsy.However,there is no clear clinical re-port for safety of epilepsy patients use both donepezil and transcranial magnetic stimulation .The article re-views the literature.Clinicians maybe provided some help.

Cholecystolithiasis with choledocholithiasis (CCL) is a common disease.The removal of common bile stone is a challenge for the surgery.This paper discussed the clinical application of three stone removal techniques including direct stone removal,irrigation and stone extraction by basket under cholangioscopy in order to take the stones effectively and safely,shorten the procedure time,avoid the injuries of common bile duct wall caused by the repetition of a single method such as biliary endoscopic stone extraction,reduce the difficulty of taking stone and enhance recovery of patients.

OBJECTIVETo construct a small interfering RNA (siRNA) vector targeting p63 and observe its effect on the proliferation and invasiveness of human cholangiocarcinoma cells in vitro.

METHODSReal-time PCR was used to examine the expression of p63 in human cholangiocarcinoma QBC939 cells. The recombinant lentivirus shRNA-p63 vector was constructed and transfected into QBC939 cells via Lipofectamine 2000 to establish a cholangiocarcinoma cell line with stable expression of siRNA-p63. The interfering efficiency of the siRNA targeting p63 was assessed using Western blotting. MTT and soft agar colony formation assays were used to evaluate the changes in the cell proliferation, and Boyden test was employed to observe the cell invasiveness after the transfection.

RESULTSQBC939 cells showed a high expression of p63. The recombinant lentivirus shRNA-p63 vector was successfully constructed as verified by sequencing. Transfection with the vector significantly suppressed the proliferation and invasiveness of QBC939 cells.

CONCLUSIONDown-regulation of p63 can inhibit the proliferation and invasiveness of human cholangiocarcinoma QBC939 cells in vitro.

Bile Duct Neoplasms ; genetics ; pathology ; Cell Line, Tumor ; Cell Movement ; Cell Proliferation ; Cholangiocarcinoma ; genetics ; pathology ; Humans ; Membrane Proteins ; genetics ; metabolism ; Neoplasm Invasiveness ; RNA, Small Interfering ; genetics ; Transfection

Ten novel compounds were designed and synthesized on the basis of compound 1, their insulin-sensitizing activities were evaluated in 3T3-L1 cells. Results showed that compound 10 exhibited strong differentiation-stimulating activity on 3T3-L1 cells model, which indicated that compound 10 may possess well insulin-sensitizing activity.
3T3-L1 Cells ; Animals ; Benzopyrans ; chemical synthesis ; pharmacology ; Drug Design ; Hypoglycemic Agents ; chemical synthesis ; pharmacology ; Insulin ; pharmacology ; Mice

Objective To lay the foundation for studying the possible pathogenesis of epilepsy and the anti-epileptic mechanism of Banxia Baizhu Tianma Decoction through the bioinformatic analysis of target gene prediction and signal pathway of miRNA-146a-5p in hippocampus of epileptic rats. Methods Lithium-pilocarpine was used to induce seizures in rat models. The experiment rats were randomly divided into normal control group, model group, Banxia Baizhu Tianma Decoction group, with 20 rats in each group. The method of miRNA expression profiling was used to observe the miRNA differential expression of hippocampus neuron cell of rats. The expression level of miRNA-146a-5p was detected by real-time quantitative PCR. MiRDB was used for target gene prediction of miRNA-146a-5p, and miRTarBase and DAVID were used for enrichment analysis on the GO function and KEGG signaling pathway. Results The attack times and grades of the rats in Banxia Baizhu Tianma Decoction group were significantly lower than those in the model group from behavioral observation. MiRNA microarray analysis showed that the expression level of miRNA-146a-5p in model group was 2.107 times normal control group (P＜0.05), and the expression level decreased to 1.377 times after treatment with Banxia Baizhu Tianma Decoction (P＜0.05). The results of RT-PCR was consistent with that of miRNA microarray, with statistical significance (P＜0.05). MiRNA-146a-5p target gene prediction results had 140 target genes by GO, and there were 14 annotation information of biological process (P＜0.05), 9 annotation information of cellular component (P＜0.05), 11 annotation information of molecular function (P＜0.05). Enrichment analysis of KEGG biological pathway showed that 140 target genes of miRNA-146a-5p were enriched in EB virus infection signal pathway and thyroid hormone signaling pathway (P＜0.05). Conclusion miRNA-146a-5p is closely related to the inflammatory reaction after epilepsy, and Banxia Baizhu Tianma Decoction can control epilepsy possibly by controlling the inflammatory reaction after epilepsy.