Objective:To investigate the pathophysiological mechanism,clinical menifestation and radiographic diagnosis of cholesterol granuloma following chronic supperative otitis media.Method:Six cases of CG following chronic suppurative otitis media, confirmed by surgery and pathology,were reviewed and analyzed.Result:CG frequently accompanied with other middle ear diseases，and was shown as a high signal intensity on both T1-and T2-weighted images in magnetic resonance imaging(MRI).Conclusion:It was postulated that the obstruction of pneumatized temporal bone air cells,caused by other middle ear diseases such as cholesteatoma and tympanosclerosis,might be the pathophsiological mechanism of CG.The evaluations of computed tomography(CT) and clinical manifestation were limited to distinguish CG from cholesteatoma or other neoplasm,while the MRI can be of great value to characteristic diagnosis.

Objective To assess the therapeutic effect and safety of radiofrequency catheter ablation of atrial fibrillation.Methods We analyzed the clinical data of 47 patients with atrial fibrillation who underwent radiofrequency catheter ablation between March 2013 and January 2008,in the First Affiliated Hospital of Xi'an Jiaotong University.In the average 32 months’follow-up,Holter monitering and echocardiography were reviewed for the left atrial diameter.Results The immediate success rate of catheter ablation for atrial fibrillation was 82.6%.The long-term success rate was 65%,the rate of paroxysmal atrial fibrillation was 69.7%,and the rate of longstanding persistent atrial fibrillation was 42.9%.After ablation,the left atrial diameter were markedly reduced compared with that before treatment [(36.3 ± 4.3 )mm vs .(38.1 ± 5.9 )mm)(P < 0.001 ).The patients with recurrent atrial fibrillation were older than those without recurrence,their left atrial diameter was bigger,and the prevalence rate of hypertension was higher (P <0.05).The average atrial fibrillation load was 14.9% after ablation compared with 46.1% before (P <0.05).Conclusion Radiofrequency catheter ablation is an effective and safe treatment of atrial fibrillation,especially for paroxysmal atrial fibrillation.The left atrial diameter was significantly decreased after radiofrequency catheter ablation compared with that before the ablation.

The healthcare of multiple sclerosis is special and challenging work for its complexity, variety, long-duration, processing, and unpredictability. The rehabilitation mode, which is patient-centered, home-based, and patient actively involved, is an effective interference. Home-based exercise rehabilitation can improve the patient's function.

Objective To investigate the value of individualized thyroid stimulating hormone (TSH) inhibition therapy in postoperative patients with differentiated thyroid carcinoma.Methods The medical record and follow-up data of the 556 patients with differentiated thyroid carcinoma after total or neartotal thyroidectomy were retrospectively reviewed.Patients were divided into two groups:Group A (304 cases) received TSH suppression therapy without risk assessment.Group B (252 cases) were given TSH suppression therapy in accord with risk assessment of both differentiated thyroid cancer recurrence risk stratification condition and the side effects of TSH suppression therapy risk stratification.Results The 3-year non-recurrence and (or) non-metastasis rate in group B was 99.2％ which was higher than 96.8％ in group A (P =0.044).The hospitalization rate caused by postoperative cardiovascular events or other morbidities in group B decreased 89％ than that in group A.Conclusions Individualized TSH suppression therapy can significantly decrease the recurrence and metastasis rate as well as concurrent morbidities caused by unnecessary TSH inhibition.

Objective To reveal the role of serum ACE2/Ang (1-7)in the occurrence of atrial fibrillation (AF)and find new targets for the prevention and treatment of AF by analyzing the correlation between the serum concentration of ACE2/Ang (1-7 )in patients with rheumatic valvular heart disease and the occurrence of AF. Methods We collected the basic clinical information and peripheral venous blood of patients with rheumatic heart valve disease (totally 46 patients,including 24 with AF and 22 with SR).ELISA method was used to detect the serum concentration of ACE2,Ang (1-7)and AngⅡ in the serum samples.Then the differences and correlation between the two groups were analyzed.Results In the AF group ① the diameter of the left atrium was significantly greater than that in the SR group [(60.70±3.08 vs.48.15±2.16)mm,P<0.05];② the serum concentration of AngⅡ was significantly higher than that in the SR group [(45.88±2.87 vs.35.78±1.08)pg/mL, P<0.05],AngⅡ and left atrium diameter were positively correlated (Pearson test,P<0.05);③ the serum concentrations of ACE2 [(7.87±0.74 vs.11.65±0.57)U/L,P<0.05]and Ang (1-7)[(146.05±17.61 vs. 321.71±36.50)pg/mL,P<0.05]were significantly lower than those in the SR group,and negatively correlated with left atrium diameter (Pearson test,P<0.05);④ the serum concentration of Ang (1-7)was negatively correlated with AngⅡ concentration (Pearson test,P<0.05).Conclusion For patients with rheumatic valvular heart disease,ACE2/Ang (1-7 )may play a protective role in the occurrence of AF via antagonizing AngⅡ and inhibiting atrial remodeling.

Diabetes is the general chronic metabolic disease,with chronic hyperglycemia as the main clinical characteristic.Proteomics discusses and explores the pathogenesis of diabetes more deeply from the overall level of proteins,which has been frequently applied in Chinese medicine research.This paper summarized proteomics application in the study of Chinese medicine intervening diabetes mellitus,including screening and verification of proteomics in Chinese medicine syndromes of diabetes and its complications,as well as proteomics analysis of pharmacological mechanism of related Chinese medicine.This paper also prospected its outlook,in hope toprovide new clues and basis for the pathogenesis theory of diabetes in traditional Chinese medicine (TCM) and functioning targets,and to deepen research on Chinese medicine intervening diabetes.

Animal medicine is an important part of traditional Chinese medicine with a long application history in China. Systematically understanding the history of the development of animal medicine is of great significance to scientific protection and rational use of animal medicine resources. It has certain guiding significance to protection of wild resources, exploitation of new substitutes, standardization and summary of artificial breeding, and artificial reproduction technology. Taking the development of bezoar as an example, this article expounded the following four aspects:the development history of animal medicine, national animal protection, technical development, and prospect forecast by summarizing the Chinese ancient medical books and consulting the relevant laws and regulations. The entire above are about to offer new ideas for the sustainable development, the development of new medicine resources, and the development of animal medicine related preparation product.

Objective To assess the effectiveness and safety of radiofrequency catheter ablation for idiopathic ventricular arrhythmia in patients with idiopathic ventricular arrhythmia after radiofrequency catheter ablation treated in the First Affiliated Hospital of Xi’an Jiaotong University based on the follow-up and retrospective analysis.Methods We retrospectively analyzed the clinical data of 63 patients with idiopathic ventricular arrhythmia who underwent radiofrequency catheter ablation during January 2008 and March 2014 in the First Affiliated Hospital of Xi’an Jiaotong University.In the follow-up,Holter moniterings were reviewed to evaluate ventricular arrhythmia and echocardiography to assess the ejection fractions and left ventricular end-diastolic diameters.Results The immediate success rate of catheter ablation for the treatment of idiopathic ventricular arrhythmia was 89.29% and the long-term success was 82.14%.The ejection fractions and left ventricular end-diastolic diameters were not obviously improved after radiofrequency ablation (P > 0.05 ). The ventricular premature contractions were significantly reduced after radiofrequency ablation (P <0.05).In postoperative care, one case was found with ruptured sinus valsalva tumor and another patient was found with the complication of hematoma in femoral artery puncture.Conclusion Radiofrequency ablation for idiopathic ventricular arrhythmia is safe and effective.

Aim To investigate whether the effect of Aβ25-35 on Bcl-2 and Bax gene transcription through DNA methylation in SH-SY5Y cell.Methods Differ-ent concentrations of Aβ25-35 (0, 25, 50 μmol? L-1 ) were treated with SH-SY5Y cells for 48 h or 72 h in vitro.The optimal concentration and time of Aβ25-35 in-duced SH-SY5 Y apoptosis were determined by MTT method.Protein expression levels of Bcl-2 and Bax of Aβ25-35-treated groups were determined by Western blot.Real time PCR was used to detect the mRNA lev-els of DNA methyltransferase including DNMT 1 , DN-MT3a, DMT3b, MeCP2. Methylation specific PCR ( MSP) was used to analyze the effect of Aβ25-35 media-ted Bcl-2 and Bax gene promoter methylation .Results 25 μmol? L-1 Aβ25-35 was exposed to SH-SY5Y cells for 72 h, MTT assay showed that cell viability was (68.49 ±9.83 )%, which was significantly reduced compared with the control group ( P <0.05 ) , indica-ting AD cell apoptosis model was successfully estab-lished.Bcl-2 expression of Aβ25-35-treated group was significantly reduced compared with the control group , on the contrary , the expression of Bax was significantly increased .Real-time PCR results showed that com-pared with the control group , DNMT1, DNMT3a, DMT3b, MeCP2 mRNA levels of the Aβ25-35-treated groups had no significant difference ( P>0.05 ); MSP results showed that Bcl-2 and Bax unmethylated ampli-fication was positive , methylated amplification was neg-ative in control group , Bcl-2 and Bax unmethylated amplification was positive and methylated amplification was negative in Aβ25-35-treated group.Conclusion DNA methylation of Bcl-2 and Bax gene promoter are not affected during Aβ25-35 induced SH-SY5Y cell ap-optosis .

OBJECTIVETo study the residue of in roots of Atractylodes macrocephalal and in soil.

METHODSamples were extracted with methanol. The extracts were cleaned up by liquid-liquid extraction and detected by HPLC.

RESULTRepeatability and accuracy of the method was verified by fortified recovery at 0.01, 0.05, 0.1, 0.2 mg x kg(-1) levels. Average recovery were 86.1%-98.3% and RSD were 1.0%-6.5% in root and soil. A. macrocephala was treated with two dosage of carbendazim during growing. Results of field test showed that the half lives of carbendazim were 6.51-7.98 d in cultivated soil, 4.51-6.50 d in roots, separately. After sample was preliminarily processed, the residue of dried samples was 0.042-0.433 mg x kg(-1), higher than the fresh samples.

CONCLUSIONIf 0.2 mg x kg(-1) is recommended as the MRL (maximum residues limited) of carbendazim in the roots of A. macrocephala, it is suggested that the dose of 0.675 kg a.i. x hm(-1) carbendazim is sprayed twice a year, and carbendazim should not be used within 21 days before the harvest.

Agriculture ; methods ; Atractylodes ; chemistry ; drug effects ; Benzimidazoles ; analysis ; pharmacology ; Carbamates ; analysis ; pharmacology ; Drug Residues ; analysis ; pharmacology ; Fungicides, Industrial ; analysis ; pharmacology ; Plant Roots ; chemistry ; drug effects ; Quality Control ; Soil ; analysis