ObjectiveTo investigate the correlation of radiographic parameters and health-related quality of life(HRQOL) instruments before and after thoracolumbar kyphosis correction in ankylosing spondylitis (AS) kyphosis.MethodsThirty-eight AS patients with fixed thoracolumbar kyphosis were treated with pedicle subtraction osteotomies(PSO) in our hospital from January 2004 to March 2010.Pre- and post-operative radiological parameters,Cobb T1-S1,pelvic incidence(PI),pelvic tilt (PT),sacral slope (SS),and sagittal vertical axis(SVA) were measured.The Oswestry disability index(ODI) and scoliosis research society-22(SRS-22) questionnaire were used to evaluate the clinical results.Statistical correlation analysis was made to determine correlation between radiographic parameters and overall or partial specific scores of HRQOL instruments.ResultsThe life quality and related radiological spino-pelvic parameters were improved significantly after operation.Preoperatively,Cobb T1-S1,PT,SS,and SVA had partial correlation with ODI walking score and ODI standing score; postoperatively,only PT and SS had partial correlation with ODI.ConclusionPelvic positional parameters are the key parameters for upright activities,and making pelvis in a neutral position is the ultimate goal of surgery.

Objective To evaluate the correlations of emphysema and airway wall thickness to chronic obstructive pulmonary disease(COPD) of airflow limitation by quantitative CT.Methods 40 COPD patients and other 40 normal controls underwent pulmonary function tests and following MSCT exams with inspiration.The square root of wall area of an airway with an internal area of 8 mm2 (Ai8) and the percentage of low attenuation volume(LAV%) of the whole lung and each lobes at the threshold of-950 HU were measured by a software of Thoracic VCAR.The Ai8 between the observation group and the control one was compared using SPSS2.2.The contributions of LAV% and Ai8 to predictions of FEV1/FVC and FEV1% were also evaluated.Results There was a significantly statistical difference in the Ai8 between the observation group and the control one.There were correlations between airflow limitation markers and all of LAV% as well as Ai8 (P<0.05 for all standardized coefficients).Only the Ai8 of right inferior lobar made a significant contribution to airflow limitation in the whole lung bronchus, and the LAV% of each lobes made a stronger contribution to airflow limitation than the Ai8 of right inferior lobe.Conclusion There is a significantly statistical difference in the Ai8 between the observation group and the control one.The LAV% may make a greater contribution to airflow limitation than Ai8 in COPD group.The influential factors of airflow limitation in order were LAV%, Ai8 of right inferior lobe and Ai8 of the other lobes.

Flammulin, an anti-tumor protein, was purified from the aqueous extract of basidiomes of Flammulina Velutipes. Purified flammulin emulsified with Freund's adjuvant was injected subcutaneously into New Zealand white rabbits. After several immune enhancements, these animals were bled and sera were separated. Antiserum against flammulin in Western blots were applied to determine if flammulin be present in the liquid state culture or fruiting body. The result showed that anti-flammulin serum could recognize the aqueous extract of fruiting body in SDS-PAGE gels under the reducing conditions, no flammulin was detected in mycelia of Flammulina Velutipes.

A new and efficient reaction system has been set up, in which the MseⅠ primers were fluorescent labeled for auto-sequencer. PCR reagents and primers and adapters of MseⅠ and EcoRⅠ, which were synthesized, the AFLP protocol has been modified, and reaction and electrophoresis conditions were optimized, the results obtained can be comparable to that of AFLP fluorescent labeled AFLP kits with less cost.

Objective To explore the impact of the ratio between pelvic tilt (PT) and sacral slope (SS) on the life quality of patients with ankylosing spndylitis (AS) after kyphosis correction. Methods From November 2008 to May 2011, 33 AS pa?tients were reviewed, including 31 males and 2 females, aged from 19 to 58 years old (average, 36 years old). The thoracolumbar kyphosis angle was 35.23° ± 13.98° (range, 15.12°-74.37° ) and the lumbar lordosis angle was 8.68° ± 18.27° (range,-23.70°-62.15°). The Scoliosis Research Society (SRS)?22 questionnaire was used to evaluate the quality of life and the Oswestry disability index (ODI) was used to evaluate the condition of pain. The pelvic incidence (PI), PT, SS, sagittal vertical axis (SVA) and osteoto?my angle were obtained from standing lateral full?spine radiographs. The correlations were analyzed from the subjective grading and the sagittal parameters in AS patients. Results The osteotomy site was in L1 (5 cases, 21.00°-54.59° , average 32.59° ± 13.44° ), L2 (19 cases, 28.63°-66.24° , average 37.89° ± 9.26° ), L3 (9 cases, 31.78°-60.90° , average 47.05° ± 9.20° ), respectively. The range of osteotomy angle was 39.59°±10.82° (range, 21.00°-66.24°). The subjective grading and spino?pelvic parameters were improved significantly after operation except PI, only postoperative PT/SS (0.93±0.65) and ODI standing (0.60±0.75)(r=0.681, P<0.05), osteotomy angle (39.59°±10.82°) and satisfaction of management (3.33±0.49)(r=0.478, P<0.05)had correlation with the subjective grading. Conclusion Compared with the change of PT, SS and SVA, the change of PT/SS is more closely related to the quality of life after operation in AS patients with kyphosis, which should be pay attention to by surgeon when designing operative schemes.

AIM: To compare the measurement of anterior chamber depth(ACD) inclusive of corneal thickness using intrao-cular lens(IOL) master and ultrasound biomicroscopy (UBM) and evaluate the repeatability of each method.METHODS: Two consecutive measurements of ACD were prospectively performed using IOL master and UBM in 60 eyes in 60 individuals. Mean values were compared using the paired t test. For each individual, ACD measure-ments was performed 5 times to estimate the repeatability of each method by a coefficient of variation(CV).RESULTS: The mean ACD was 2.95±0.25mm with the IOL master and 2.96±0.22mm with the UBM. This diffe-rence was not statistically significant (P=0.631).The coefficient of variation (CV) was 0.56%±0.26% and 0.65%± 0.36% in IOL master and UBM, respectively.CONCLUSION: The mean ACD of IOL master was the same as UBM. The repeatability of IOL master is better than UBM.

Objective To observe the influence of oleanolic acid on the ethology of 9-month-old mice,the completeness of synapsis structure and the expression of cAMP-response element binding protein (CREB) in cortex and hippocampus.Methods Thirty 9-month-old healthy male SMAP8 mice were randomly divided into model group,oleanolic acid group and aricept group,and with 10 rats in each group,while 10 healthy male mice of the same age and species as normal group.Oleanolic acid group and aricept group were given intragastric administration with corresponding drugs,while the normal group and model group were given the same amount of physiological saline.4 weeks later,the ethology changes were observed by Morris water maze and morphology changes of hippocampus neurons were viewed by electron microscope and the expression of CREB was detected by Western Blot.Results (1)Morris water maze results suggested that compared with the normal group,the latency time in the model group mice was longer,which were ((83.33±4.96) s,(75.13±6.01) s,(71.75±7.77) s,(63.40± 8.93) s,(60.97±8.38) s),while compared with the model group,the latency time in the oleanolic acid group and the aricept group was remarkably shorter (P＜ 0.05),which were (75.97± 4.49) s,(64.98± 4.93) s,(64.16± 6.23) s,(53.47±5.99) s,(47.91±7.64) s and (71.30±7.65) s,(63.32±7.57) s,(59.82±4.69) s,(52.28±5.90) s,(46.22±7.27) s respectively.In the spatial probe trial,compared with tbe normal group,the crossing times of the model was less,while compared with the model one,the crossing times of the oleanolic acid group and the aricept group was more(P＜0.05).(2)Compared with the normal group,the number of synapses in the model group was smaller,in which the synaptic cleft was mixed with the front of synapses severely swollen,uninform synaptic vesicles and few clear outlines of mitochondrias.While the oleanolic acid group and the aricept group had clear synapses outlines with the front of synapses slightly swollen,intensive and uniform synaptic vesicles and clear mitochondrias with their cristae not easy to be seen.(3) The Western Blot showed that compared with the normal group,there was a decline in the CREB expression both in the cortex and hippocampus in the model group,while compared with the model group,there was a rise in the oleanolic acid group as well as the aricept group(P＜0.05).Conclusion Oleanolic acid can improve the learning and memorizing of model rats,which is possibly related to the increased expression of CREB protein to protect the synapses structure of model mice.

Objective To explore the safety of Habib VesOpen bipolar radiofrequency ablation (RFA) catheter used in the treatment of portal vein tumor thrombus (PVTT). Methods A total of 10 miniature pigs were randomly divided into 3 groups. Group A(n=6):RFA of normal portal vein was directly performed;group B (n=2): balloon obstruction of the portal vein was performed first, which was followed by RFA for the fresh thrombus in the portal vein; group C (n=2): PVTT model was established first, and RFA of the portal vein was carried out when the portal thrombus became organized. MRI examination was employed at one, 3 and 4 weeks after RFA; the animals were sacrificed 4 weeks after RFA and pathological examination of portal vein was performed. Results Pigs of group A received portal vein RFA under the condition of 5 W power for 0.6-3.6 min. No obvious abnormality was detected by MRI and pathological examination , which were performed one month after the treatment. In the pigs of group B , MRI performed after RFA showed that the damage of portal vein area was more serious than that in the pigs of group A;abdominal MRI examination performed at one, 3 and 4 weeks after RFA showed that the portal venous edema was gradually decreased;pathological examination at one month after RFA demonstrated serious injury of adjacent liver tissue. Pigs of group C received portal vein RFA under the condition of 7 W power for 1.5 min; no obvious edema of the ablated area was observed on MRI performed after RFA , and pathological examination revealed organized thrombus necrosis and va scular endothelial cell damage. Conclusion When Habib VesOpen bipolar RFA catheter is used for the treatment of PVTT, the RFA power and time should be properly selected according to the severity of PVTT. In order to ensure a safer procedure, high power and short ablation time should be used when the severity of PVTT is mild, while low power and longer ablation time are recommended when the PVTT is more severe.

Objective Study the diagnostic value of CT to assess the transfer of right recurrent nerve nodes(RRNN) on the thoracic esophageal squamous carcinoma,so as to provide reference for thoracic segment esophageal surgery way.Methods A retrospective analysis from January 2011 to February 2014 in the first affiliated hospital of zhengzhou university at the records of 132 cases of thoracic segment esophageal thoracic surgery with preoperative CT image data,recorded each patient's right recurrent nerve nodes in the largest length to diameter and the average CT number,and compared with postoperative pathologic results.Results With the ROC curve analysis,considering transfer when the length of RRNN' s diameter 8.5 mm or more in CT,the area under the curve is 0.911,the sensitivity is 85.7％,specificity is 78.8％.Considering transfer when the RRNN average CT number acuity 32.50 HU,the area under the curve is 0.815,the sensitivity is 85.7％,specificity is 76.9％.Whether RRNN transfer has significant correlation(P ＜ 0.05) with the length of tumor,tumor location and whether lymph node of other station transfer,doesn' t have significant correlation (P ＞ 0.05)with patients'age,sex,tumor differentiation degree and the T stage.Conclusion When the RRNN length to diameter 8.5 mm or RRNN average CT numberr acuity 32.50 HU,right recurrent nerve nodes should be considered lymph node metastasis,and choose chest conclusion laparoscopic radical prostatectomy.The upper thoracic portion esophageal tumor's length is 5 cm or more,or clinical suspected lymph node metastasis of other station is the risk factor for metastasis of RRNN.

Objective To investigate the effect of multidisciplinary physician/nurse collaboration care mode in diagnosis and treatment of elderly patients with intertrochanteric fracture.Methods Clinical data of 433 elderly patients with intertrochanteric fracture treated from August 2011 to September 2013 were studied retrospectively.Among them,136 were diagnosed and treated using conventional methods (control group) and 297 using the multidisciplinary physician/nurse collaboration approach (collaboration group).Hospital stay,surgery rate,time from hospitalization and operation,and complications were compared between the two groups.Results Length of hospital stay [(14.8 ± 5.9) d] in collaboration group was not statistically different from that in control group [(16.0 ± 4.7) d,t =0.433,P ＞ 0.05],but surgery rate was improved (72.8％ vs 83.9％,x2 =7.212,P ＜ 0.05),time from hospitalization and operation shortened [(5.6 ± 2.9) d vs (6.9 ± 3.4) d,t =3.096,P ＜ 0.05],and perioperative complication rate reduced in collaboration group compared to control group (all P ＜ 0.05).Conclusion Multidisciplinary physician/nurse collaboration mode is a novel method for diagnosis and treatment of intertrochanteric fracture in the elderly and is associated with improved surgery rate,reduced perioperative complications and early functional recovery.