[Objective]To investigate the clinical effects of the treatment of thoracolurnbar fracture with pedicle screw system under endoscopy assisted X-tube system.[Method]Twenty-one cases of pure thracolumbar fracture without neural impairment were treated with pedicle screw system under endoscopy assisted X-tube system.With the image intensifier,the pedicle based in the affected segments were localized and exposed through 4 small incisions(3cm).Transpedicular fixation and reduction by endoscopy assisted X-tube system were performed through the 4 small incisions.[Result]Twenty-one cases were followed up for 12-18 months(averaged,14 months).Radiography showed good reduction fixation of the vertebral bodies,good correction of the kyphosis deformities and good restoration of lumbar motion.[Conclusion]The treatment of thoracolumbar fracture with pedicle screw system under endoscopy assisted X-tube system is indicated for thoracolumbar fracture without neural impairment.This technique has advantages of minimal invasion and early functional recovery.

[Objective]To investigate the surgical method and clinical effects of the anterior approach operation in the treatment of thoraco-lumbar vertebral fractures through limited incision.[Method]Thirty-four cases of bursting fracture of thoracolumbar vertebral body were treated with the operation of anterior decompression,bone grafting and internal fixation by the anterior retropleuro-peritoneum approach.The MRI combined with clinical examination,X-ray,CT results were taken as selection criteria of treatment.[Result]Thirty-four cases were treated with this operative technich.Hemorrhage capacity is about 300-800ml with average 600ml.The operation time was 2-2.5 hours.All patients were followed-up with an average period of 18 months(ranged,6-24months).No aggravation of nerve injury appeared in 34 cases.X-ray manifested good fusion,no broken nails and no recurrence of kyphosis was found in all cases.[Conclusion]Anterior approach operation through limited incision is an effective way for severe thoracolumbar fractures. It has significantly low complication and allow early recovery of function.

Objective To evaluate the value of serum procalcitonin (PCT ) in the diagnosis of liver cirrhosis complicating sponta‐neous bacterial peritonitis (SBP) .Methods The patients with cirrhosis were divided into non‐SBP group and complicating SBP group according to whether complicating SBP ,and the patients with common hepatitis served as the control group .Serum expres‐sion levels of PCT ,CRP and IL‐6 were detected by electrocheniluminescence and Immunoturbidimetry methods .The receiver operat‐ing characteristic curve (ROC) curve was drawn for evaluating the diagnostic efficiency of each indicator .Results The levels of ser‐um PCT ,CRP and IL‐6 in the complicating SBP group were significantly higher than those in the non‐SBP group and control group , the differences were statistically significant (P<0 .01);The ROC curve analysis showed that the diagnostic value of PCT at the op‐timum threshold value of 0 .51 ng/mL for diagnosing cirrhosis complicating SBP was superior to CRP and IL‐6 ,the sensitivity of se‐rum PCT for diagnosing SBP in 3 groups was 62 .68% ,the specificity was 76 .59% and the accuracy was 80 .01% .Conclusion The serum PCT level has an important value for the early diagnosis of liver cirrhosis complicating SBP .

Objective To acquire some related data of surgical approach through brain superior temporal sulcus to temporal horn of lateral ventricle by MRI volume rendering, and to orientate the point of superior temporal sulcus on the lateral surface which is closest to temporal horn of lateral ventricle,and to find out the best entrance point of surgical approach through superior temporal sulcus to temporal horn of lateral ventricle.Methods 120 adult cases of MRI scanning specimens were chosen for measurement. MRI volume rendering technology was used to rebuild the brain 3D model for the measurement of the full length of superior temporal sulcus S1 .Then cutting along the prependicular to the direction of the long axis of the temporal lobe with 1.0 mm spacings,the coronal sections were obtained,and the distance from superior temporal sulcus to temporal horn of lateral ventricle was ordinally measured and the shortest distance S2 was made sure.And the depth of superior temporal sulcus S3 was detected. The corresponding point on the surface of the brain at superior temporal sulcus according to the point leading the shortest distance S4 was determined. The ratio of S4 to S1 M was calculated. The angle between the shortest distance and median sagittal plane asαwas determined.All the samples were measured on both sides of the brain and all the data were compared.Results The S1 of the 120 cases was (159.56 ± 17.55)mm on the left and (164.35± 15.07)mm on the right,there was no statistical difference between two cerebral hemispheres(P>0.05);the S2 was (8.18±0.96)mm on the left and (7.81±0.90)mm on the right,there was no statistical difference between two cerebral hemispheres(P>0.05);the S3 was (12.19±1.43)mm on the left and (11.57± 1.33)mm on the right,there was no statistical difference between two cerebral hemispheres(P>0.05);the S4 was (100.88±16.09)mm on the left and (104.15±14.49)mm on the right,there was no statistical difference between two cerebral hemispheres(P>0.05);the M was (0.63 ±0.07)on the left and (0.63 ±0.06)on the right,there was no statistical difference between two cerebral hemispheres(P>0.05);theαwas (55.80±3.64)°on the left and (56.46±4.17)°on the right,there was no statistical difference between two cerebral hemispheres(P>0.05). Conclusion The point at the front side 3/5 of superior temporal sulcus may be the ideal surgical approach entrance point.The distance from the point to temporal horn of lateral ventricle is shortest.It indicates that the approach can reduce the damage of brain tissue.

Objective To investigate the associations between the single nucleotide polymorphisms of TERT rs2736098, CLK3 rs11543198 and bladder cancer. Methods 201 bladder cancer cases and 200 healthy controls were included in the research, and the genotypes of TERT rs2736098 and CLK3 rs11543198 were determined using the PCR-RFLP method. Relationship between genotypes and bladder cancer risks was investigated. Results There were statistical significance in the rs2736098 genotype frequencies and allele frequencies between cases and controls (χ2= 6.973, P = 0.031; χ2= 7.412, P = 0.006). Compared with the individuals with the GG genotype , the risk of bladder cancer increased 2.069 times with the AA genotype (OR = 2.069, 95%CI: 1.181-3.624, P = 0.011). And there were no significant associations between the rs11543198 genotype frequencies and allele frequencies between cases and controls (χ2 = 0.202, P = 0.904; χ2 = 0.188, P = 0.665). Rs2736098 and rs11543198 genotype distribution in bladder cancer pathologic grade and stage had no statistical significance (P > 0.05). Conclusion Rs2736098 polymorphism is associated with risk of bladder cancer and rs11543198 polymorphism was not associated with risk of bladder cancer.

OBJECTIVETo study the intercellular communication of alveolar bone during traumatic occlusion at early stage in rats.

METHODSThe occlusal surface of the upper left first molar of rat was raised by placing a stainless steel wire to induce occlusal trauma in the lower left first molar. After 24 hours, the alveolar bone tissues of the lower jaws first molars at the both sides were taken out under anesthesia The various 27 000 genes were identified with genome-wide microarray, and further were investigated with reverse transcription-polymerase chain reaction (RT-PCR) and Pathway analysis.

RESULTSTotal 586 gene were found to be changed, 106 different signal pathways got involved with Pathway analysis, including cell adhesion molecules(CAMS), adhesions junction, gap junction, focal adhesion and tight junction, and the cytokines associated with bone metabolism in above 5 signal pathways were all down-regulated.

CONCLUSIONAt the early phase of the occlusal trauma, intercellular communication in rat's alveolar bone were inhibited.

Objective To evaluate effect of combined corpeetomy for multilevel cervical spondylotic myelopathy (CSM) and ossified posterior longitudinal ligament (OPLL).Methods Fifteen patients with CSM or OPLL,including 9 males and 6 females,were treated with combined corpectomy which is characterized by C4 and C6 corpectomy,excision of osteophyma,protruded disc and/or ossified posterior longitudinal ligament on basis of preservation of C5 vertebral body,structural bone grafting in C3-5 and C5-7,and anterior cervical plate fixation at C3,C5,and C7.The clinical results were evaluated with Japanese Orthopaedic Association (JOA) score.X-rays and CT scans were taken to evaluate vertebral fusion,and MRI was used to access spinal canal decompression and condition of spinal cord.Results All patients were followed up for 9 to 42 months (average,26.7 months).Bony fusion was achieved in all 15 patients.The JOA score improved from preoperative 13.44±2.81 to postoperative 16.16±2.19 (P=0.0354).The cervical lordosis improved from preoperative 1.16°±11.74° to immediately postoperative 14.36°±7.85° (P=0.00217),and 12.92°+6.17° at the final follow-up (P=0.00292).The complications included temporary hoarseness in 2 cases,dysphagia in 1 case.Conclusion The combined corpectomy for treating CSM and OPLL can obtain reliable and satisfactory results.In operation,the preservation of C5 vertebral body can provide an additional screw anchoring force and strengthen stahility.

Objective To investigate the effects of Loropetalum chinense extracts on the proliferation of lung adenocarcinoma A549 cells cultured in vitro. Methods CCK-8 assay was performed to evaluate the effect of Loropetalum chinense extracts on the proliferation of A549 cells, and the clonal growth ability of A549 cells was determined by clone formation assay. Flow cytometry Annexin V-APC/PI double staining was used to measure the apoptosis of A549 cells. Western blot was used to measure the expressions of apoptosis-related proteins Bax, Fas, Bcl-2 Caspase3 and cleaved-Caspase 3. Results Loropetalum chinense extracts significantly inhibited the proliferation and colony formation of A549 cells in a time- and dose-dependent manner. The viability of A549 cells decreased by 50% after 48h treatment of 0.5mg/ml extracts, and 100% inhibition of colony formation rate achieved when the cells were treated with 40μg/ml extracts for 14 days. When A549 cells were treated with Loropetalum chinense extracts for 24h, apoptotic rates increased in a dose-dependent manner. Compared with the control group, the protein levels of Fas, Bax, Caspase3 and cleaved-Caspase3 were up-regulated, while Bcl-2 was down-regulated. Conclusion Loropetalum chinense extracts inhibit the growth of human lung adenocarcinoma cells in vitro, and the mechanisms may be related to the activation of mitochondrial and death receptor apoptosis pathway.

Objective:To investigate the risk factors affecting the occurrence of perioperative complications in patients with locally progressive gastric cancer undergoing radical gastric cancer treatment.Methods:The clinical data of 129 patients with locally progressive gastric cancer from January 2017 to December 2019 in Shaanxi Provincial People′s Hospital were retrospectively analyzed, including 98 males and 31 females, with an age ranged from 27 to 79 years and a mean age of (60.61±10.00) years. The postoperative complications of 129 patients with gastric cancer were firstly counted, and then the relationship between clinical data such as patients′ general condition, intraoperative status and pathological indexes and the occurrence of perioperative complications was analyzed by using univariate analysis, and significant factors were included in the logistic regression model for multifactor analysis to study the independent risk factors for the occurrence of perioperative complications.Results:Of the 129 patients, 25 cases (19.38%) had postoperative complications, including 10 cases (7.75%) with Clavien-Dindo classification combined with grade Ⅲ or higher complications. The results of univariate analysis suggested ACCI score >4 (30.76% vs 68.00%, χ2=11.86, P=0.001), body mass index ≥25 kg/m 2 (24.03% vs 60.00%, χ2=12.18, P=0.001), and preoperative hypoproteinemia (17.30% vs 36.00%, χ2=4.25, P=0.039), vascular cancer embolism (14.42% vs 40.00%, χ2=7.70, P=0.006), operative time ≥ 400 min (26.92% vs 52.00%, χ2=5.84, P=0.016), intraoperative bleeding ≥ 400 mL (13.46% vs 44.00%, χ2=12.03, P=0.001) were risk factors for the development of perioperative complications in patients with locally progressive gastric cancer. Multifactorial analysis showed that ACCI score >4, body mass index ≥25 kg/m 2, preoperative hypoproteinemia, vascular cancer embolism, and intraoperative bleeding ≥400 mL were independent risk factors for the occurrence of perioperative complications in patients with locally progressive gastric cancer ( P<0.05). Conclusions:The occurrence of perioperative complications in locally progressive gastric cancer hands was closely associated with ACCI score, body mass index, preoperative hypoproteinemia, vascular cancer embolism and intraoperative bleeding. ACCI score is expected to be a predictor of the occurrence of perioperative complications in patients with locally progressive gastric cancer.

[Abstrcat] Objective To study the effects of acute alcoholism on blood gas analysis in rabbits. Methods Forty New Zelanian big-ear rabbits were divided into four groups randomly. The control group (Group A), the hemorrhagic shock group (Group B), the acute alcoholism group (Group C)and the acute alcoholism and hemorrhagic shock combination group (Group D). Results The volume of blood of Group D was less than Group B. The volume of lipid of Group D needed more. pH and PaO2 of Group D and Group B were decreased than Group A, PaCO2 and lactic acid were risen in the shock and recovered. pH and PaO2 of D Group were decreased than B Group, PaCO2 and lactic acid of D Group were risen than Group B. pH, PaO2, PaCO2 and lactic acid for different time and different group weren’t statistically significant. There was no interaction of pH, PaO2, PaCO2 and lactic acid in different time and different group. Conclusion It will achieved acidosis and decrease in partial pressure of oxygen after hemorrhagic shock. Acute alcoholism can aggravate them.