Mycoplasma ovipneumoniae (Mo) is difficult to culture, resulting in many difficulties in related research and application. Since nucleotide metabolism is a basic metabolism affects growth, this study conducted a “point-to-point” comparison of the corresponding growth phases between the Mo NM151 strain and theMycoplasma mycoides subsp. capri (Mmc) PG3 strain.The results showed that the largest difference in nucleotide metabolism was found in the stationary phase. Nucleotide synthesis in PG3 was mostly de novo, while nucleotide synthesis in NM151 was primarily based on salvage synthesis. Compared with PG3, the missing reactions of NM151 referred to the synthesis of deoxythymine monophosphate. We proposed and validated a culture medium with added serine to fill this gap and prolong the stationary phase of NM151. This solved the problem of the fast death of Mo, which is significant for related research and application.

Objecfive To investigate the effects of endotoxin on nuclear factor-κB p65(NF-κB p65)mRNA expression and ahtosteron secretion in rat hepatic stellate cells(HSCs).Methods Cultured rat HSCs(HSC-T6)were divided into endotoxin-treated group and control group.Cells in endotoxin-treated group were exposure to 1 mg/ml.endotoxin.Aldosteron secretions of HSCs were determined by radioimmunoassay,and NF-κB p65 mRNA expressions of HSCs were detected by one-step RT-PCR.Results At 6,12,24 and 48 h,aldosteron secretions in endotoxin-treated group were significantly hisher than those in the control group(t=3.063,4.577,6.847 and 9.317,P<0.05),and the expressions of NF-κB p65 mRNA in endotoxin-treated group were also higher than those in control group(t=5.155,6.095,7.875 and 9.313,P<0.01).Aldosteron secretions and NF-κB p65 mRNA expressions in HSCs displayed a positive correlation(r=0.886,P<0.01).Conclusion Endotoxin can up-regulate the aldosteron secretion and NF-κB p65 mRNA expression in rat HSCs,which may be one of the mechanisms of liver fibrosis induced by endotoxin.

0bjective To summarize the experience of postoperative and mid-term echocardiographic evaluation of modified Blalock-Tasussig(BT)shunts. Methods During 2003-2006,thirty five consecutive patients received modified BT shunts and survived postoperative 6 months were enrolled in this study.Transthoracic echocardiography was utilized to evaluate the patency of shunts and the change of pulmonaryarteries(PA)and left ventricle(LV). Results Three patients received the emergence surgery for the intervention for the BT shunts. The follow-up was (21.2±11.3) months. During the follow up,the obstruction of shunts occurred in 7 cases. After the placement of shunts,the mean size of PA increased by 31.2%,meanwhile,the size of LV increased by 25.6%. Nineteen patients received the followed definitive repair or palliative operations. Compared with the patients still waiting for the growth of PA,the patients who receiving the second staged procedure achieved the more appropriate PA growth. Furthermore,for the above patients,there was no significant difference between the angiographic and echocardiographic evaluation for the PA size. Conclusions Echocardiography could accurately diagnose the patency of shunts and record the growth of PA and LV following BT shunts. Echocardiography is a highly reliable noninvasive approach for the perioperative evaluation and mid-term follow-up for the modified BT shunts.

Foundations of Oriental Medicine (FOM) is one of the mandatory examinations for the Diplomate of Oriental Medicine (Dipl.OM.), Chinese Herbology (Dipl.CH.), or Acupuncture (Dipl. Ac.) by American National Certification Commission for Acupuncture and Oriental Medicine (NCCAOM). In the light of NCCAOM Certification Handbook, Foundations of Oriental Medicine Expanded Content Outline,and Foundations of Oriental Medicine Study Guide, the authors introduced the examination pattern and examination-related contents including: Clinical diagnostic methods; assessment, analysis, and pattern-differentiation based upon Oriental Medicine theory and treatment principle and strategy.

Objective To study the CT and MRI features of peripheral primitive neuroectodermal tumor(PNET).Methods CT and MRI appearances of 10 patients with PNET pathologically proved were analyzed retrospectively.All cases underwent CT scan and 2 cases underwent MR imaging examination.There were 5 men and 5 women,the age ranged from 11 years to 54 years old(mean 24 years).Results The tumors were located in the chest wall(n=4),abdomen and sinus(n=2,each),cervical vertebra and humerus(n=1,each).The lesions in the chest wall and abdomen appeared as larger masses(5~16 cm in diameter).The masses were circular and lobulated with heterogeneous density and in company with bone destruction or periosteal reaction.The solid masses were enhanced after contrast medium administration.The lesions in the sinus showed the soft tissue mass with bone erosion.The lesions in bone demonstrated local iso-intensity on T1WI,hyper-intensity on FSE T2WI and on FATSAT T2WI.There were distant metastasis in 3 cases.Conclusion The clinical and imaging features of pPNET in chest wall were more specific than in other locations.CT and MRI can showed intra-tumor structure,and are helpful in delineated the extent of tumor,predicting resectability and monitoring treatment.

Objective To compare cardiac output continuously measured by transesophageal echocardiograph (TEE)with Flotrac /Vigileo system.Methods Thirty -six patients,aged 30 -60years,of American Society of Anesthesiologists physical status ⅠorⅡscheduled for laparoscopic hysterectomy (LH )were included in this study.The radial artery puncture on the left connecting the Flotrac /Vigileo system monitoring was established before anesthesia and ultrasonic probe was inserted into the esophagus after anesthesia induction.The depth of the probe was located at the middle esophagus with monitoring of transesophageal echocardiography(tee).At the same time the value of CO after anesthesia,before and after pneumoperitoneum were recorded and the application of SPSS 13.0 software package for statistical analysis was made.Monadic linear correlation and regression analysis were both used in measured CO. Results Each point,the determination of transesophageal echocardiography(tee)between the CO and the determination of the Flotrac /Vigileo CO,had high correlation(r =0.850,P =0.002).The CO at the time of T2 monitored by TEE group and Flotrac /Vigileo group were (3.3 ±0.2)L/min,(3.2 ±0.2)L/min,which were significantly lower than (5.6 ±0.3)L/min,(5.4 ±0.3)L/min(t =2.248,2.178,P =0.032,0.029).But there were no statistically significant differences at other time respectively(tT =0.102,0.199,0.201,0.124,0.198,PT =0.918,0.887,0.894, 0.908,0.898;tF =0.098,0.189,0.214,0.119,0.112,PF =0.953,0.874,0.898,0.913,0.932).Conclusion The correlation of CO monitored by transesophageal echocardiography(tee)and Flotrac /Vigileo was good,which can be safely and efficiently used in intraoperative monitoring of patients.

ObjectiveTo identify the suitable echocardiographic predictor of speckle tracking imaging (STI) for evaluation of development of left ventricle(LV) after pulmonary artery banding (PAB).Methods Seven children older than 3 months with transposition of great arteries with intact ventricular septum (TGA) were enrolled,they received pulmonary artery banding (PAB group).Eight body surface area matched healthy children were severed as control group.Using the STI technique,the rotation curves at apex and base were analyzed.ResultsAll the patients discharged eventually.The intraoperative LV/RV systolic pressure ratio in PAB group was (0.32 ± 0.04):1.There were no differences in ejection fraction and wall thickness between control and PAB group.However,the end diastolic diameter and end diastolic volume in PAB group was significantly reduced.Compared with the control group,the hypoplasia of LV in PAB group was associated with an extended time to peak basal rotation,and furthermore,the basal and global torsion was significantly reduced by 3 times.ConclusionsSTI showed local rotation and global torsion might be thevaluable predictor to evaluate the regressed and the development of LV peri-PAB procedure for the older children with TGA.

The core protein (CP) of the classical swine fever virus (CSFV) is one of its structural proteins. Apart from forming the nucleocapsid to protect internal viral genomic RNA, this protein is involved in transcriptional regulation. Also, during viral infection, the CP is involved in interactions with many host proteins. In this review, we combine study of this protein with its disorders, structural/functional characteristics, as well as its interactions with the non-structural proteins NS3, NS5B and host proteins such as SUMO-1, UBC9, OS9 and IQGAP1. We also summarize the important part played by the CP in CSFV pathogenicity, virulence and replication of genomic RNA. We also provide guidelines for further studies in the CP of the CSFV.
Animals ; Classical Swine Fever ; virology ; Classical swine fever virus ; genetics ; metabolism ; pathogenicity ; Genome, Viral ; Swine ; Viral Core Proteins ; chemistry ; genetics ; metabolism ; Virulence

Objective To discuss the morphological features and diagnosis of congenial double orifice mitral valve (DOMV) deformity by echocardiography.Methods Twenty consecutive patients were examined.The changes of the morphology and flow dynamics of DOMV were studied,and other congenital cardiac abnormalities were also observed.These results were compared with those of surgery.Results Thirteen cases of adult patients were all with significant hemodynamic abnormalities,and underwent mitral replacement.One case of school child with muscular ventricular septal defect underwent mitral replacement because of obvious hemodynamic changes.Six cases were under 2 years old,2 cases with complete endocardial cushion defect accompanied with pulmonary hypertension,1 case with partial endocardial cushion defect accompanied with coarctation of the aorta underwent corrective operation.No significant hemodynamic abnormalities in 2 cases,1 case was associated with coarctation of the aorta and patent ductus arteriosus,the other patient with membranous ventricular septal defect.Severe stenosis in 1 case with papillary muscle dysplasia,because there was no suitable operation and take conservative therapy.Seventeen cases were confirmed by the results of open-heart surgery.Conclusions Echocardiography can provide an accurate method to diagnose DOMV and evaluate the hemodynamic changes.

Objective To observe the clinical effects of tibial locking multidirectional interlocking intramedullary nail (TLMIIN) for tibial plateau fractures. Methods 38 cases with closed tibial plateau fractures treated by TLMIIN from October 2008 to May 2012 were retrospectively analyzed. There were 22 males and 16 females, with an average age of 48.7 years (range, 28-67 years). There were 24 fractures on the left side while the other 14 factures were on the right side, which were all fresh frac?tures. According to AO/OTA classification of tibial plateau fractures, there were 4 cases of B1, 1 case of B2, 14 cases of B3, 8 cas?es of C1, 5 cases of C2 and 6 cases of C3. Close reduction were performed on 4 cases (10.5%of all cases). Open reduction were performed on the other 34 cases. The limited incision was decided by the distribution of the fragments and fracture line. Hohl?Luck evaluation system was applied for the follow?up. Results The mean follow?up period was 18.1 months (range, 11-23 months). All fractures were healed at an average period of 87.4 days (range, 48-131 days). The average time from operation to full weight?bearing was 108.9 days (range, 80-128 days). Hohl?Luck evaluation system was used in the final follow?up. The excellent and good rate of functional score was 94.7%(36/38), including 28 cases excellent, 8 cases good and 2 cases fair from functional as?pect. The excellent and good rate of radiological score was 84.2%(32/38), including 23 cases excellent, 9 cases good and 6 cases fair from radiological aspect. No complications such as infection, breakage and loosening of the screw, malunion, nonunion oc?curred at the time of the latest follow?up. 6 cases with serious swelling of the knee joint and the soft tissue of crus were cured by an?ticoagulation, dehydration and physiotherapy treatments after operation. The 2 cases with a little exudates and incrustation was bacterial cultured negative and healed after 16 days and 18 days on the incision. 1 case had lost of reduction due to weight?bearing 1 week after operation, who had 25 degree of varus deformity, which was left dispose, and the bone healing and joint function were unaffected. Conclusion The intramedullary support, restrictive and non?restrictive multidirectional tridimensional fixation of TLMIIN technology had satisfactory effects in treating plateau fractures. It can supply a new therapeutic method, with little dam?age of soft tissues when taking out the internal fixation and reduce some postoperative complications.