Objective In order to investigate the feasibility of surgical clipping of all bilateral supratentorial aneurysms via a unilateral approach. Methods Fontotemporal Craniotomies were performed on 20 cadavers to study the contralateral exposure for five common aneurysm sites in the anterior circulation such as the ophthalmic artery (OA) segment,the posterior communicating artery (PCOA) segment,theinternal carotid artery (ICA) terminal segment,the anterior communicating artery (ACOA) segment,as well as the middle cerebral artery (MCA) bifurcation. Results The contralateral OA segment was successfully exposed in 65% of specimens,the PCOA segment in 50%,the ICA terminai segment in 100%,the ACOA segment in 100% and the MCA bifurcation in 65%. Conclusion In this study,we select seriously surgical signs,it is very feasible and effective for neurosurgeon to clip successively all aneurysms of bilateral supratentorial via a approach.

The morphological and molecular identifications of Cyclospora-like oocysts of dogs were underwent in the present study, in which the morphological characteristics of the Cyclospora-like oocysts firstly found in the stool samples of dogs, such as shape, size, acid-fast staining,sporulation and auto-fluorescene, were observed. According to the published sequence of the rDNA gene of Cyclospora in GenBank, 3 primers were designed and were used to amplify part of the 18S rDNA gene of dog-associated Cyclospora-like organism by nested PCR.The amplicons were purified and cloned into vector pMD19T. Then, the positive clones screened were sequenced and subjected to sequence homology and phylogenetic analysis. It was found that the morphological charactertistics of the Cyclospora-like oocysts in dogs were similar to that of the human Cyclospoa oocysts and the size of-the amplified fragment of 18S rDNA was proved to be 715 bp, that was identical to that of the target fragment. Based on the results of sequence homology and phylogenetic analysis, the dog-associated Cyclospora-like organism was identified as the Cyclospora species.

BACKGROUND:The therapeutic effects of donkey-hide glue reinforcing bone oral solution on osteoporosis have been determined, but the exact effective mechanism is to be approached. OBJECTIVE: To investigate the effects of donkey-hide glue reinforcing bone oral solution (DGRBOS) medicated serum on osteoprotegerin (OPG)and its ligand(OPGL)mRNAexpression of osteoblast in fetal rats and explore the molecular mechanism of treating osteoporosis with DGRBOS. DESIGN: A randomized controlled trial. MATERIALS: The experiment was carried out from June 2003 to October 2004 in Bone Metabolic Laboratory of Department of Integrative Chinese and Western Medicine, Affiliated Hospital of Tongji Medical College,Huazhong University of Technology and Science. Totally 30 3-month-oldWistar rats (15 males and 15 females) were randomly divided into 3 groups, I.e. DGRBOS group, estrogen group and control group, with 10 rats in every group. 12 clean newborn SD rats were selected to isolate and cul ture osteoblast. METHODS: ①After intragastric administration for 7 days, medicated serum was prepared respectively from the three groups. ②Skull osteoblast isolated from newborn SD rats was made into single cell suspension, then after digestion and passage, the subcultured osteoblast cell was made into cell suspension. The cultured osteoblasts were divided into 5 groups and given equal volumes of drug liquor. The DGRBOS group was given DGRBOS-medicated serum at the concentration of 100, 500 and 1 000 g/L which was diluted by nutrient solution; the estrogen group was given tibolone-medicated serum of 100 and 1 000 g/L; the control group was givenonly culture fluid. Meanwhile every group was given calf serum (100 g/L) for further culture. ③The osteoblast proliferation was measured by antigenic MTT colorimetric analysis and 3H-TdR penetration method. The in tra-cellular BGP contents were evaluated by radioimmunity .The mRNA expression of OPG and RANKL in osteoblast was analyzed by Rt-PCR. ④ One-way analysis of variance was applied to compare data among groups. MAIN OUTCOME MEASURES: mRNA expression of OPG and PAN KL in osteoblasts from fetal rats after intervention by medicated serum ofDGRBOS or Livial. RESULTS: ①The osteoblast proliferation measured by antigenic MTT colorimetric analysis and 3H-TdR penetration method showed that the proliferation in the DGRBOS group and tibolone group was enhanced moresignificantly than that in the control group (P ＜ 0.05-0.01), and reached maximal effect at the concentration of 500 g/L (P ＜ 0.01), but when the concentration was over 500 g/L, the effect tended to saturate. The medicated serum with all concentrations from DGRBOS and estrogen groups could increase the contents of BGP in osteoblasts (P ＜ 0.05). ②The mRNA expression of OPG reached the peak when the DGRBOS medicated serum was 1 000 g/L, and was obviously higher than that at the concentration of 100 and 500 g/L (P ＜ 0.05). The expression in DGRBOS group at the concentration of 1 000 g/L and in the estrogen group at the concentration of 100 and 1 000 g/L was apparently higher than that of the control group (P ＜ 0.01). ③The mRNAexpression of RANKL was the highest in DGR BOS group with 1 000 g/L concentration, and was markedly lower than that of the concentration of 100 and 500 g/L (P ＜ 0.05). The expression in DGRBOS group at the concentration of 1 000 g/L and in the estrogen group at the concentration of 100 and 1 000 g/L was noticeably lower than that in the control group (P ＜ 0.01).CONCLUSION: ①The DGRBOS could remarkably enhance osteoblast proliferation in dose-dependent and a dose-saturable manner, and the effect was close to that of tibolone. ②Partial mechanism of DGRBOS in treating osteoporosis might be promoting osteoblast proliferation and regulating OPG/RANKL expression.

Objective To investigate the effects of kidney-deficiency on auditory cortex metabolism in the elderly by using the proton magnetic resonance spectroscopy(1H-MRS).Methods 50 volunteers,including 20 young subjects and 30 older subjects matched for gender,were measured by pure tone audiometry、“kidney-deficiency”-related test and were executed 3.0 T multi-voxel 1H-MRS tests,The ratios of N-acetylaspartate (NAA),choline (Cho) and lactate (Lac) to creatine (Cr) were measured and were compared between the two groups.The t-test analysis were used for statistic process.The relationship between auditory cortex metabolism and the symptom of kidney-deficiency was also analyzed.Resnlts The result of kidney-deficiency-related test and pure tone audiometry revealed that there was significant difference between the two groups and the older subjects had the more severity kidney-deficiency and high-frequency hearing loss (t=6.335、19.558,P＜0.05).The NAA/Cho ratio in the auditory cortex in the older group was significantly lower than that in the younger group (t=2.90,P＜0.05).There were no significant differences between two groups for the ratios of NAA/Cr and Cho/Cr (t=1.415、0.927,P＞0.05).Decrease of the ratio of NAA/Cho in the older group is significantly related with kidneT-deficiency(r=- 0.773,P=0.025).Conclusion kidney-deficiency play a very important role in the hearing loss and reduction of the number of neurons in auditory cortex of older healthy subjects.It suggests one possible underlying mechanism for the speech perception difficulties exhibited by aging adults.

Objective To investigate the effect of right ventricular(RV)volume and RV pressure overload on left ventricular(LV)rotation and twist in patients with atrial septal defecl(ASD).Methods Using speckle tracking imaging(STI),the peak rotation of 6 segments in basal and apical short-axises was measured respectively in 35 patients with ASD(18 of which with pulmonary hypertension)and 21 healthy subjects as controls.The average peak rotation and duration time of the 6 segments in basal and apical short-axises in negative direction during early systolic phase were also measured respectively.LV twist versus time profile was drawn and the peak twist and time to peak twist were calculated.LV ejection fraction(EF)was measured by biplane Simpson method.Results Compared to ASD patients without pulmonary hypertension and healthy subjects,the peak rotation of posterior wall,inferior wall and postsept wall in basal was lower(P＜0.05).And at the basal level,the averagepeak rotation of 6 segments in negative direction during early systolic phase was higher(P＜0.05),and the average duration time was delayed(P＜0.05).LV peak twist was also lower(P＜0.05),and had a significant negative correlation with pulmonary arterial systolic pressure(r=-0.57,P=0.001).There were no significant differences in LVEF among 3 groups.Conclusions Although RV volume overload due to ASD has no significant effects on LV rotation and twist,LV peak twist is lower in ASD patients with pulmonary hypertension.Thus LV twist may be a new index which predicting whether ASD patients also has pulmonary hypertension or not.

Objective To access the left ventricular sysytolic function in children at acute stage of Kawasaki disease using speckle-tracing imaging. Methods Two-dimensional echocardiograghic images of 27 patients and 19 normals were collected in apical long-axis view, two-champer view, four-champer view, short-axis views at the levels of mitral annulus, papillary muscle and apex. The systolic peak values of longitudinal strain, radial strain and circumferential strain were measured by speckle-tracking imaging. Results Compared with controls the values of longitudinal strain and radial strain are lower in most segments in patients(P < 0.05). There were no significant differences between the patients and controls in circumferential strain(P>0.05). Longitudinal strain and radial strain measured were lower in 8 patients with coronary ectasia(including 7 cass with coronary artery aneurysms in vessels) than other 19 patients,but the two groups have no significant differences(P>0.05). Conclusions Long-axis and short-axis function of the heart decreased regardless of coronary artery ectasia.

Speckle tracking imaging (STI) was employed to investigate the effect of right ventricular (RV) volume and pressure overload on left ventricular (LV) rotation and twist in 35 patients with atrial septal defect (ASD), 18 of which with pulmonary hypertension, and 21 healthy subjects serving as controls. The peak rotations of 6 segments at the basal and apical short-axises and the average peak rotation and interval time of the 6 segments in the opposite direction during early systolic phase were measured respectively. LV twist versus time profile was drawn and the peak twist and time to peak twist were calculated. LV ejection fraction (EF) was measured by Biplane Simpson. Compared to ASD patients without pulmonary hypertension and healthy subjects, the peak rotations of posterior, inferior and postsept walls at the basal level were lower (P<0.05), and the average counterclockwise peak rotation of 6 segments at the basal level during early systolic phase was higher (P<0.05), and the average interval time was delayed (P<0.05). LV peak twist was also lower (P<0.05), and had a significant negative correlation with pulmonary arterial systolic pressure (r=-0.57, P=0.001). No significant differences were found in LVEF among the three groups. It was suggested that although RV volume overload due to ASD has no significant effects on LV rotation and twist, LV peak twist is lower in ASD patients with pulmonary hypertension. Thus LV twist may serve as a new indicator of the presence of pulmonary hypertension in ASD patients.
Cardiology/methods ; Echocardiography/methods ; Echocardiography, Doppler/methods ; Heart Septal Defects, Atrial/metabolism ; Heart Septal Defects, Atrial/*pathology ; Heart Ventricles/pathology ; Hypertension ; Nuclear Proteins/*metabolism ; Systole ; Twist Transcription Factor/*metabolism ; Ventricular Function, Left

Objective To compare the diagnostic value of DWI and ultrasound elastography(UE) in staging hepatic fibrosis in patients with chronic viral hepatitis B(CHB). Methods Fifteen healthy volunteers (control group) and 69 patients with CHB (disease duration more than 1 year) (patient group) were prospectively recruited. All of the subjects underwent DWI and UE experiments twice with the interval of less than 3 days. Liver ADC and shear wave velocity(SWV) values were obtained for subsequent analysis. Sixty?nine patients who had biopsy were grouped according to their pathological grading of fibrosis, from S0 to S4. One?way ANOVA was used to compare the ADC and SWV values between the five different fibrosis groups and control group. Spearman correlation analysis was used to analyze the correlations between the ADC and SWV values and those staging factors. Finally, receiver operating characteristic (ROC) curve analysis was performed to compare the diagnostic performance of ADC and SWV values in discriminating different stages of hepatic fibrosis. Results Based on the pathological results, the 69 patients were reclassified to five subgroups with 11, 13, 12, 15 and 18 patients in the S0, S1, S2, S3 and S4 groups respectively. ADC values were(1.39±0.09)×10-3,(1.39±0.08)×10-3,(1.38±0.10)×10-3,(1.20±0.06)×10-3,(1.12±0.07)×10-3 and(1.01±0.07)×10-3mm2/s for the control group and stages S0 to S4 respectively.SWV values were(1.17±0.07),(1.16±0.08),(1.23±0.10),(1.48±0.14),(1.85±0.14)and(1.97±0.12)m/s for stages S0 to S4 and the control group respectively. Statistically significant differences were observed among them (P<0.01). Both ADC (r=-0.894,P<0.01) and SWV (r=0.904,P<0.01) values were highly correlated with the stages of liver fibrosis. The area under ROC(AUC) for predicting fibrosis stages (≥S1, ≥S2, ≥S3 and S4) with ADC values was 0.893, 0.991, 0.966 and 0.952 respectively. Accordingly, the AUC for SWV values were 0.937, 0.993, 0.994 and 0.914. Conclusions The two imaging methods of DWI and UE showed good and similar diagnostic performance in discriminating the different stages of hepatic fibrosis.

Objective To investigate the epidemiology of respiratory viruses in children from Wuxi area.Methods A total of 2 747 cases of children diagnosed with acute respiratory infection in Wuxi during 2011 —2014 were collected.Reverse transcription-polymerase chain reaction was used to detect nine kinds of respiratory viruses,including influenza virus A (Flu A),influenza virus B (Flu B),parainfluenza virus (PIV)Ⅰ-Ⅳ,adenovirus (ADV),respiratory sycytial virus (RSV),human metaneumovirus (hMPV), human bocavirus (HBov),human coronaviruses (hCov)and human rhinovirus (HRV).The categorical data were compared using chi square test.Results A total of 856 among the 2 747 samples were tested positive for respiratory virus nucleic acid,with the positive rate of 31 .16%.The viral distribution was uneven in different seasons,and the infection peaked in winter and spring.The virus detection rate was highest in age 1 to 2 year group (up to 40.18%),and followed by age 6 to 12 year group (32.63%).Flu A virus was the most frequently detected virus,accounting for 7.54% (207/2 747);followed by PIV, accounting for 6.95 % (191/2 747);and Flu B accounted for 4.22%(116/2 747).There were 84 cases of mixed infection of two or more kinds of respiratory viruses,with positive rate of 3.06% (84/2 747 ). Conclusions Our study suggests that Flu A is the most common pathogen in children with acute respiratory infections in Wuxi area during 2011 —2014;virus detection rate is highest in age 1 to 2 year group;and parainfluenza virus is almost detected throughout the year,while the rest of respiratory viruses are commonly seen in winter and spring.

Objective: To investigate the impact of bladder filling status on the movement of uterine and on the volume of organs at risk(OAR), so as to provide theoretical basis for individualized internal target volume (ITV) and planning target volume (PTV). Methods: Simulation CT images for a total of 27 patients with locally advanced cervical cancer were acquired with empty bladder, 1.0 h after bladder filling, 1.5 h after bladder filling, respectively. The volumes of uterine corpus, cervix, OARs, CTV and PTV 1.0 h after bladder filling were delineated. The impact of bladder filling status on the displacements of cervix and corpus, volumetric changes of rectum, small intestine, and the volumes of small intestine, bladder and rectum within PTV were analyzed. The correlation between bladder filling status and uterine displacement and volume of OAR was also investigated, as well as the volume of cervix and corpus in the PTV with empty bladder and 1.5 h after bladder filling. Results: Bladder filling status is different for individual cases. The maximum movement range of cervix and uterine body with bladder filling state was 0-3.04 cm and 0-4.31 cm respectively. The anterior displacements of corpus (F=7.818, P<0.05), the volumetric changes of blander, as well the volume of bladder and small intestine in the PTV (F=46.197, 44.609, 29.546, P<0.05) were significantly different between different bladder filling status. The bladder filling status was correlated with the displacements of the anterior of corpus, volumetric changes of small intestine, and the volumes of bladder and small intestine within the PTV (r=-0.232, -0.298, 0.915, -0.336, P<0.05). The volumes of cervix and corpus out of the PTV were significantly different between the empty bladder and 1.5 h after bladder filling (t=-1.326, -1.559, P<0.05). Conclusions Bladder filling status was different for individual patients. The displacements of the anterior of the corpus were significantly affected by the bladder filling status. Increasing the anterior margin of PTV was recommended. The consistency of bladder filling status was critical for the precise cervical cancer IMRT.