Objective To evaluate the value of technetium-99m methoxy isobutyl isonitrile (99Tcm-MIBI)tomography and integrated CT in preoperative localization diagnosis of secondary hyperparathyroidism (SHPT).Methods 28 patients with SHPT were selected.15 minutes and 90 minutes (delayed images)after intravenous administration of 99Tcm-MIBI 370 MBq,static anterior planar images of the neck and chest were obtained.99Tcm-MIBI tomography and integrated CT scan were acquired after the delayed imaging.The imaging findings were compared to the pathological results.Results The detection rate of SHPT lesions by 99Tcm-MIBI dua-phase imaging and 99Tcm-MIBI tomography and registration with integrated CT scan was 53.3％ and 70.7％ respectively.The difference had statistical significance(X2 =5.903,P＜0.05).The fusion imaging with integrated CT can provide detailed anatomy data and more information for surgical doctors.Conclusion 99Tcm-MIBI tomography and registration with integrated CT scan can improve the detection rate of SHPT compared with 99Tcm-MIBI dua-phase imaging,provide more detailed anatomy data,and has high clinical value in preoperative localization and diagnosis of SHPT.

Objective To investigate the chnical effect of modified transforaminal lumbar interbody fusion (TLIF) on the treatment of lumbar degenerative disease. Methods Sixty-two patients with lumbar degenerative disease were treated by the modified TLIF from June 2007 to May 2009. The preoperative diagnosis was lumbar intervertebral disc herniation with spinal instability (28 cases), lumbar intervertebral disc herniation with lumbar stenosis (27 cases ), degenerative spondylohsthesis (7 cases ). Forty-eight cases were single-level and 14 cases were two-level. The patients were evaluated by observing the fusion rate and comparing the visual analog score( VAS ) and Japanese orthopaedics association (JOA) score of preoperation with those of postoperation. Results All the patients were followed up from 15 to 30 (22.77 ± 3.82)months,no nerve injury,leakage of cerebralspinal,infection,the broken of pedical screws and other complications. The fusion rate of segment was 96.8% at the follow-up after 1 year postoperatively. Judgement by JOA score,the rate of improvement was 93.5%(58/62),excellent in 34 cases,good in 24 cases,fair in 4 cases. The postoperative value of V AS and JOA score were higher than those of preoperation (P ＜ 0.05 ), the values when follow-up of 3 months was performed had no statistic al difference with those of final follow-up (P＞0.05). Conclusion The modified TLIF with fully decompression while reducing the accessing spinal canal complications have good clinical efficacy in treating lumbar degenerative disease.

Abstract: Total RNA was isolated from Siraitia grosvenorii fruit by the method of modified Trizol, according to S. grosvenorii fruit characteristics of rich phenols, polysaccharide, oil and proteins. The OD260/280, OD260/230, RNA integrity (RIN) and yield of the total RNA with this method were 2.01, 2.02, 9.50 and 260 mirog.g-1, respectively. The open reading frame (ORF) of dehydroascorbate reductase (DHAR), named as SgDHAR, was cloned by rapid amplification of cDNA ends (RACE) and RT-PCR method from S. grosvenorii. The GenBank accession number for this gene is KC907731. The SgDHAR gene contains a full-length cDNA of 1,252 bp including ORF of 819 bp and encodes a predicted protein of 272 amino acids. The molecular mass is 30.217 7 kD and the isoelectric point is 8.76. Homology comparison showed that it shared 87% nucleotide sequence homology with Cucumis sativus. Expression patterns using qRT-PCR analysis showed that SgDHAR was mainly expressed in fruit and stem, followed by flower, and was lowest in root, while the expression level was 6.83 times in triploid. T than that in diploid. Therefore, SgDHAR gene may be involved in abortion of triploid seedless S. grosvenorii.

BACKGROUND: Most of the patients suffered from degenerative lumbar instability are treated by exposure both sides and bilateral pedicle screw fixation,which bring highly operative risk,large blood loss and great medical expenditure to patients.OBJECTIVE: To explore the clinical efficacy of single cage plus unilateral pedicle screw placement for treating lumbar degenerative instability.METHODS: Totally 51 cases with lumbar degenerative instability underwent single cage plus unilateral pedicle screw placement were selected,including 32 males and 19 females,aged ranging from 41 to 72 years.47 cases had single segment involved and 4cases had two segments involved.All cases experienced unilateral laminectomy and transforamenal lumbar interbody fusion.The therapeutic effect was assessed by Japanese Orthopaedic Association(JOA)score system.RESULTS AND CONCLUSION: The blood loss was 90-430 mL.The surgical time was 100 minutes(85-120 minutes)for single segment and 150 minutes(120-170 minutes)for double segments.The patients were allowed to early ambulation at 2-3 days after operation.Two cases did not get improvement on back-leg pain,but there was no abnormality from CT and MRI recheck,one case felt pain relieved after anti-symptom treatment for 3 months while the other did not relieve.The average JOA scores at pre-operation and 1 year follow-up was 11(7-13 scores)and 25(18-27 scores),respectively.The total improvement rate of JOA was larger than 50%.44 cases were evaluated as fusion and 7 cases as possible fusion.The average fusion time was 5.4 months(4.3-7.1 months).Postoperative X-ray showed no evidence of pedicle screw loosening,broken,or cage displacement.Single cage plus unilateral pedicle screw placement is characterized by simple operation,small blood loss,short operation and few interference to spine,which is a better method for treating lumbar degenerative instability.

Objective To evaluate the effects of different selection criteria on the prognosis of hepatocellular carcinoma(HCC)patients undergoing liver transplantation(LT)and to evaluate a new criterion.Methods A retrospective analysis was performed on 81 consecutive patients with HCC who underwent LT.The survival rates of the patients who met different criteria such as Milan.UCSF(University of California San Francisco UCSF).and Pittsburgh(Pitt)modified TNM criteria were calculated by KaplanMeier method,and the value of different criteria was evaluated.The Long-Rank test and COX proportional hazards regression model were performed to analyze the prognostic factors.the model of criteria was established according the most important prognostic factors.Using the Kaplan-Meier method,the suitable cut-offs of every variable ifl the model were found by comparing the survival and the number of the patients who met the cut-off,and considering the significant difference between the patients who met and exceed the cut-off at the same time.Resuits The 1,2,3-year accumulative survival rates of the 19 patients who met Milan criteria were 87.7%,87.7%,and 52.6%respectively:the 1,2,3-year disease free survival rates of them were 88.9%,72.7%,and 72.7%respectively.The 1,2.3-year accumulative survival rates of the 26 patients who met UCSF criteria were 87.2%,80.5%,and 55.2%respectively;the 1,2,3-year disease free survival rates of them were 84.1%,68.4%,and 68.4%respectively.With our new expanded criterion as of solitary tumor≤8 cm in diameter.or no more than 3 tumors,with the largest≤6 am,and a total tumor diameter≤10 cm.there was no significant difierence in 1,2,3-year sunrival rates and disease free survival rates(89.0%,81.8%,71.8%,and 81.9%,72.4%,72.4%.)as compared with Milan or UCSF criteria.but with this new criterion more patients(a=41)would be eligible for transplantation with a comparable long term survival.and the difference of the accumulative survival rates and disease free survival rates of the patients who met and exceed the new criteria was significant(P＜0.05).Conclusion The new indication is acceptable because the criteria does not adversely impact survival.

Objective To investigate the effects of reducing the auditory organ dose by limitation of sub regional auditory organ in IMRT plan. Methods Total 223 cases of nasopharyngeal carcinoma patients were divided into group A and group B. In group A, the IMRT plans of 114 patients were designed by limiting overall auditory organ dose. In group B, the IMRT plans of 109 patients were designed by limiting sub regional auditory organ dose. According to the Clinical prescription, the IMRT plans were designed. Paried t?test was difference between groups. Results By comparing the two groups of auditory organ dose, in all stages, the tympanic cavity Dmean average in group B decreased by T1 vs. 17?? 7%,T2 vs. 22?? 4%,T3 vs. 15?? 7% and T4 vs. 14?? 2% ( P= 0?? 000,0?? 000,0?? 000,0?? 000);cochlea Dmean average decreased by T1 vs. 11?? 0%, T2 vs. 20?? 1%, T3 vs. 10?? 0% and T4 vs. 9?? 0%(P= 0?? 004,0?? 000,0?? 007,0?? 036);vestibule Dmean average decreased by T1 vs. 22?? 6%, T2 vs. 31?? 8%, T3 vs. 20?? 6% and T4 vs. 21?? 4%, significantly less than in group A (P= 0?? 000,0?? 000,0?? 000,0?? 000). The bony portion of eustachian tube Dmean average in group B decreased were not significantly less than in group A (decreased by 3?? 4%,6?? 8%,3?? 6%,0?? 1%;P= 0?? 291, 0?? 006,0?? 155,0?? 963). Conclusions In IMRT plan, optimization on dose limitation of sub regional auditory organs were used to reduce the auditory organ dose and decrease the radiation damage to auditory organ.

Objective:To investigate the neural mechanism of long-term exposure to high altitudes environment on the processing stage of perceptual closure.Methods:A cross-sectional study was conducted. Thirty college students who first entered the plateau area (at an altitude of 3 658 m) and had lived in high-altitude areas for two years were selected as high altitude group (HA group), and 29 college students matched in age, gender and education level who had never been to the plateau area were selected as sea level group (SL group). The differences of basic physiological parameters were compared between the two groups.The face pairwise comparison paradigm was applied in the subjects of the two groups and the differences between the two groups were compared by event-related potentials (ERPs) technology. SPSS 22.0 software was used for statistical analysis, and the mean ± standard deviation was used for statistical description. Independent sample t test was used for comparison of physiological data between the two groups, and repeated measurement variance analysis was used for ERP data. Results:The physiological results revealed that the HA group had a higher pulse rate((86.71±10.82)/min, (75.97±11.28)/min ; t=-3.19, P=0.002) and diastolic blood pressure than the SL group ((75.93±9.19)mmHg, ( 68.59±11.42) mmHg ; t=-3.20, P=0.002). The oxygen saturation level was significantly lower than that of SL group ((90.77±2.25)%, (98.31±1.56) %) ; t=14.00, P<0.001). In the face pairwise comparison paradigm test, the main effect of P1 latency of ERP was significant.Compared with SL group, HA group showed significantly shortened latency of P1 ((105.10±15.59) ms, (128.35±14.40)ms, P<0.001). The main effect of group of N170 amplitude was significant, HA group was larger than that of SL group((-7.57±3.83) μV, ( -5.11±3.26) μV, P=0.005). The interaction effect between group and hemisphere of NCL amplitude was significant ( F(1, 57)=9.72, P=0.003). Simple effect test showed that the amplitude on the right hemisphere of SL group was significantly larger than that on the left hemisphere((0.46±1.31) μV), (1.16±1.33) μV ). The latency of P1 was significantly correlated with heart rate( r=-0.46, P<0.01), oxygen saturation level( r=0.64, P<0.01) and diastolic blood pressure( r=-0.26, P=0.049). Conclusion:After long-term exposure to high altitude, the neural response related to early visual perception is faster. More psychological resources are recruited during the face structural encoding stage. Contra-lateral compensating effect appeares in the stage of perceptual closure.

OBJECTIVETo analyze the relationship between the net photosynthetic rate and the quality of Siraitia grosvenorii.

METHODTaken two species of S. grosvenorii: Yongqing No. 1 and Yehong No. 1 as the experimental material, CI-310 portable photosynthesis system was used to test the net photosynthetic rate in the late growth period; HPLC was used to determine momordica-glycosides V.

RESULTLight compensation point of Yongqing No. 1 was lower than that of Yehong No. 1 and the light saturation point was identical, the weight of dried fruit and the content of momordica-glycosides V of Yongqing No. 1 were higher than those of Yehong No. 1 at the late growth period.

CONCLUSIONThe net photosynthetic rate can be used as an important subservient index to assess the quality of S. grosvenorii.

UNLABELLEDTo explore the condition of CA storage for fruit of Siraitia grosvenorii.

METHODThe CA storage of 5% CO2, 15% CO2, 30% O2 under normal temperature was applied in the experiments, and the results were compared.

RESULTThe results showed that CA storage condition could alleviate the reduction of weight loss and water content, the best CA storage condition were 5% CO2, which alleviates the reduction of firmness and increases of soluble solid content during the 45 day period.

Objective Using middle cerebral artery occlusion (MCAO) model to observe protective effect of effective components of bezoar on brain damage.To discuss the anti-cerebral ischemia mechanism and compare the efficacy of effective components of bezoar from the endoplasmic reticulum stress intervention angle.Methods Rats were stratified randomly divided into sham group,model group,Qingkailing group (positive drug,3 mL/kg),taurine group,ursodeoxycholic acid (UDCA,78 mg/kg) group,taurine-conjugated ursodeoxycholic acid (TUDCA,100 mg/kg) group.Through establish MCAO model in rats,observed the scores of the neurologic impairment,measured infarct volume by TTC.Immunohistochemistry and Western blotting were Used to detect the content of P-PERK,P-EIF2α,and ATF4.Results Compared with sham group,neurologic impairment scores of model group significantly reduced (P ＜ 0.01).Compared with model group,Qingkailing group,UDCA group,and TUDCA group significantly improved neurological function in rats (P ＜ 0.05,0.01).Compared model group,all the treatment groups could significantly reduce the volume of cerebral infarction (P ＜ 0.01).Compared with sham group,expression of P-PERK,P-EIF2α,and ATF4 was significantly increased (P ＜ 0.01).Compared with model group,all the treatment groups reduced the expression of P-PERK,P-EIF2α,and ATF4 in varying degrees,effect of Qingkailing and TUDCA were more obvious.Conclusion The effective components ofbezoar alleviate cerebral ischemia reperfusion injury in rats by inhibiting endoplasmic reticulum stress,the effect of TUDCA is better than that of taurine and UDCA.