Objective:Human metapneumovirus (hMPV),initially described in 2001,is an enveloped RNA virus of the genus Metapneumovirus,subfamily Pneumovirinae,family Paramyxoviridae. Here we sought to clarify basic features of human metapneumovirus proteins. Methods:Rabbits were immunized with inactivated virons of hMPV Chinese first isolate,CHN05-01,to yield anti-hMPV antiserum. Antiserum was used as primary antibody to detect hMPV proteins by Western blotting. NetNglyc1.0 server,NetOglyc 3.1server and the NetPhos 2.0 server were applied for predicting potential glycosylation and phosphorylation sites of proteins of prototype virus of type A,CAN97-83. Results:The highest reactive titer of the antiserum with hMPV antigens reached 1:500 in ELISA. Potential glycosylation sites of G protein and phosphorylation sites of P protein were greatest among all hMPV proteins. G protein was shown a narrow band with molecular weight between 55 and 72kDa (approximately 68kDa),indicating its glycosylation level being consistent and remarkably different from that of CAN99-80 and CAN99-81. F1 subunit of fusion protein displayed molecular weight between 40 and 55kDa (approximately 48 kDa),which is consistent with previous reports. Conclusion:Basic features of two major membrane proteins of Chinese human metapneumovirus isolate were clarified,which will benefit future studies on protein funtion and pathogenesis of this virus.

Objective To investigate the CT and MRI manifestations and clinical features of liver fluke granuloma.Methods A retrospective analysis was performed for the clinical and imaging data of 5 patients with pathologically confirmed liver fluke granuloma who were hospitalized in The First Affiliated Hospital of Guangxi Medical University from January 2010 to September 2015.Results Liver fluke granuloma had slightly low density on CT plain scan,as well as a slightly low signal on T1 weighted images and a slightly higher signal on T2 weighted images of MRI plain scan.Three-phase contrast-enhanced CT scan showed delayed enhancement with mild dilatation of the intrahepatic bile duct,and normal vessels ran through the lesion.Conclusion Liver fluke granuloma is a rare disease in chnical practice.A history of eating raw fish,delayed enhancement on three-phase contrast-enhanced CT scan,and normal vessels running through the lesion all contribute to the diagnosis of liver fluke granulomas.

Objective To investigate the clinicopathological characteristics and treatment of nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL). Methods Seven patients were confirmed as NLPHL by pathologic immunohistochemistry. Six patients received combined-modality therapy of chemotherapy and involved field, and the other one received single chemotherapy. Results The 3-year local control rate and overall survival rate were 100 % and 86 %, respectively. Only one case died of pulmonary infection following chemotherapy. Conclusion These patients with NLPHL has favorable prognosis, tolerance and less toxicity for combined-modality therapy. However the management of toxicity following treatment should be noted.

Feature extraction is a very crucial step in P300-based brain-computer interface (BCI) and independent component analysis (ICA) is a suitable P300 feature extraction method. But at present the convergence performance of the general ICA iteration methods are not very satisfactory. In this paper, a method based on quantum particle swarm optimizer (QPSO) algorithm and ICA technique is put forward for P300 extraction. In this method, quantum computing is used to impel ICA iteration to globally converge faster. It achieved the purpose of extracting P300 rapidly and efficiently. The method was tested on two public datasets of BCI Competition II and III, and a simple linear classifier was employed to classify the extracted P300 features. The recognition accuracy reached 94.4% with 15 times averaged. The results showed that the proposed method could extract P300 rapidly and the extraction effect did not reduce. It provides an experimental basis for further study of real-time BCI system.
Algorithms ; Brain-Computer Interfaces ; Electroencephalography ; Event-Related Potentials, P300 ; Humans ; Principal Component Analysis ; Signal Processing, Computer-Assisted

Objective To investigate the differences in the clinical application of the etiological subtypes of ischemic stroke according to the TOAST,ASCO and CISS criteria.Methods A total of 167 consecutive patients with fist-ever ischemic stroke were enrolled in the study.They were classified with the TOAST,ASCO and CISS criteria,respectively.The differences and consistency of subtype diagnosis of each etiology were compared.Results Compared with TOAST,ASCO grade 1 significantly increased the proportion of patients in a large atherosclerosis group (23.4％ vs.19.8％ ;x2 =4.167,P =0.031) and decreased that in a small vessel disease group (32.9％ vs.38.3％ ; x2 =4.923,P =0.022); similarly,CISS also significantly increased the proportion of patients in the large atherosclerosis group (37.1％ vs.19.8％ ;x2 =27.034,P ＜0.001)and decreased that in the small vessel disease group (19.2％ vs.38.3％;x2=25.289,P ＜ 0.001).However,ASCO grade 1 (34.1％ vs.28.1％;x2 =3.682,P=0.052) and CISS (32.9％ vs.28.1％;x2 =0.880,P =0.268) did not decrease the proportion of patients in a cryptogenic group.The consistency of the 3 typing methods was between moderate (other etiology group of TOAST/ASCO-1,κ =0.434) and excellent (cardioembolism group of TOAST/ASCO-1,κ =0.967).Conclusions Both ASCO-1 or CISS typing may not decrease the proportion of the patients with the subtype of cryptogenic stroke,but the consistency among all the subtypes was better.The design and characteristics of the diagnostic criteria in all subtypes with the 3 criteria should be considered in clinical practice.

Objective: To establish a method for the determination of ketoconazole and miconazole nitrate in compound ketocon-azole gels. Methods:An HPLC method was developed. A Hypersil BDS C18 column(416 mm × 200 mm,5μm) was used, the mobile phases consisted of 0. 5% ammonium acetate solution-methanol(containing 0. 2% triethanolamine) (20∶80), the flow rate was 1. 0 ml ·min-1 , the detection wavelength was set at 230nm, the column temperature was 30℃ and the injection volume was 20μl. Results:There was a good linear correlation within the range of 5. 1-510. 0 mg·L-1 for ketoconazole (r=0. 999 9) and 50. 0-500. 0 mg·L-1 for miconazole nitrate (r=0. 999 9), the average recovery for ketoconazole and miconazole nitrate was 100. 3%(RSD=0. 38%, n=6) and 99. 9%(RSD=0. 79%, n=6), respectively. Conclusion:The method is simple, rapid, accurate and sensitive, and can pro-vide a method for controlling the quality of compound ketoconazole gels.

Objective To investigate the effect of tourniquet modified strapping on venipuncture in tumor patients.Methods 120 tumor patients whose veins were exposed hard in radiotherapy department from October 2016 to March 2017, randomly divided into the control group and the observation group equally.The control group was treated with the traditional single strapping tourniquet to have venipuncture and the observation group with tourniquet modified strapping.Results The venous filling degree, the success rate of first puncture, and the satisfaction of the patients in the observation group were significantly higher than those in the control group (P<0.05).Conclusion The use of tourniquet modified strapping in tumor patients whose veins were exposed hard can significantly improve the venous filling degree, the success rate of puncture, the satisfaction of patients and the quality of nursing service, and thus it is worthy of clinical promotion.

Objective To investigate the clinical efficacy and mechanism of minocycline hydrochloride ointment adjuvant therapy for chronic periodontitis.Methods86 patients of chronic periodontitis who received therapy from August 2013 to June 2015 in our hospital were selected.According to random number table, those patients were divided into the experimental group (n=43) and the control group (n=43).The control group was treated on the basis of the foundation treatment with tinidazole Oral Sticking Tablets and the experimental group were treated on the base of the foundation treatment with Minocycline hydrochloride sustained-release ointment, the levels of hs-CRP, TNF-a, IL-8 and IL-10 in gingival sulcus fluid were measured before and after treatment, the indexes of PLI, PD, SBI and AL were recorded,at the same time the clinical curative effect between two groups was compared.ResultsThe effective rate of the experimental group(95.35%) was higher than the control group(81.40%),the difference was statistically significant (P<0.05);Compared with before treatment, two groups general situations and inflammation factors changed after treatment,plaque index, periodontal pocket probing depth, gingival sulcus bleeding index and adhesion levels of the experimental group were lower than the control group after treatment, the PD, SBI, AL and PLI in the experimental group were significantly lower than that of the control group, and the hs-CRP, TNF-a and IL-8 levels were lower than the control group, IL-10 was higher than the control group after treatment(P<0.05).ConclusionMinocycline hydrochloride ointment is well for chronic periodontitis,which can effectively relieve periodontal chronic inflammation, improve clinical efficacy, the underlying mechanism may be related to the reduction of IL-8 and TNF-α levels in gingival crevicular fluid.

Objective To explore the application of mesangial thyroid resection in papillary thyroid carcinoma(PTC) with central lymph node dissection,and its influence on postoperative recurrence.Methods 76 cases with PTC were divided into two groups according to random number table,each group in 38cases.The control group was given primary lesions radical prostatectomy and routine central lymph node dissection,the treatment group was given primary lesions radical prostatectomy and central lymph node dissection by thyroid mesangial resection.The parathyroid function,injury of recurrent laryngeal nerve and local recurrence were compared between the two groups.Results Compared with before surgery,the levels of serum PTH and blood calcium were significantly decreased at the 1st,3rd day after surgery (all P ＜ 0.05),while there were no statistically significant differences in serum PTH and blood calcium at the 7th day after surgery(all P ＞0.05).The levels of serum PTH and blood calcium at the lst,3rd,7th day after surgery between the two groups had no statistically significant differences(all P ＜ 0.05).The incidence rate of injury of recurrent laryngeal nerve in the treatment group was significantly lower than that in the control group (5.3％ vs.21.1％,x2 =4.15,P ＜ 0.05).The secondary surgery rate and local recurrence within 2 years in the treatment group were significantly lower than those in the control group (0％ vs.15.8％,2.6％ vs.18.4％,x2 =6.51,4.69,all P ＜ 0.05).Conclusion Primary lesions radical prostatectomy and central lymph node dissection by thyroid mesangial resection can be used as theroutine operation for PTC,which can effectively produce complete dissection,reduce injury of recurrent laryngeal nerve and local recurrence.

OBJECTIVE:To investigate the effects of Danhong injection combined with low molecular weight heparin (LM-WH) on clinical symptoms,serum inflammatory factors and lung function in elderly patients with chronic obstructive pulmonary disease (COPD). METHODS:A total of 146 elderly patients with COPD were randomly divided into observation group and con-trol group,with 73 cases in each group. Both groups received conventional treatment. On this basis,control group was given Dan-hong injection 30 mL,intravenous drip,once a day. Observation group was additionally given LMWH sodium injection 5000 IU, subcutaneously,twice a day,on the basis of control group. Both groups were treated for 14 d. Clinical efficacies of 2 groups were observed and compared. The clinical symptom score,the levels of IL-6,IL-8,TNF-α,FEV1,FEV1/FVC,pa(O2),pa(CO2) and the occurrence of ADR were compared before and after treatment. RESULTS:After treatment,the total response rate of observa-tion group was significantly higher than that of control group(93.15%vs. 78.08%,P<0.05). Before treatment,there was no statis-tical significance between above indexes (P>0.05). After treatment,individual clinical symptom score,total clinical symptom score,the levels of IL-6,IL-8,TNF-α,pa(CO2)in 2 groups were significantly lower than before;the observation group was signif-icantly lower than the control group;FEV1,FEVl/FVC,pa(O2) were significantly higher than before,and the observation group was significantly higher than the control group,with statistical significance (P<0.05). CONCLUSIONS:Based on conventional treatment,Danhong injection combined with LMWH is effective in the treatment of senile COPD,and can significantly improve the clinical symptoms,serum inflammatory factors levels and pulmonary function with good safety.