1.Subtotal corpectomy with the posterior vertebral wall retention for the extensive decompression
Wen YUAN ; Xinwei WANG ; Deyu CHEN
Chinese Journal of Orthopaedics 2000;0(11):-
Objective To report a newly designed method of cervical subtotal corpectomy with the posterior vertebral wall retention. Methods 89 cases of cervical spondylotic myelopathy(CSM) or cervical injury were treated with subtotal corpectomy with the posterior vertebral wall retention from March 2001 to March 2004. 61 males and 28 females, aged from 25 to 76 years(mean, 47 years) were included, which involved 62 cases of multiple level in CSM with or without radiculopathy, 14 fractures of cervical vertebral body with or without cervical dislocation, 13 cervical instability with or without cervical disc disease. Subtotal corpectomy with 2 mm retention in posterior wall of the vertebral body were performed, in which 23 cases' level were C4,55 C5 and 11 C6. Extensive decompression through intervertebral body space was performed and bone fusion with autogenous iliac bone graft or titanium mesh supplemented with anterior locking plates were used, the bone graft or mesh were impacted into the decompression slot between the upper to lower endplate as well as the preserved lateral and posterior wall stably. Bone fusion were assessed with roentgenogram during the 3rd, 6th, 12th month follow-up and neurological function was recorded. Results The average operation time is 100 min, ranged from 55-130 min, the blood loss were 120 ml, ranged from 30 to 300 ml. Neither plate or screw migration, nor bone graft loosening or subsidence were found in 77 patients with over 6 months follow-up. Bone fusion happened in all patients, and Frankel score improved 1.0 level averagely after operation. 3 patients with hoarseness recovered 2 weeks later. Conclusion Subtotal corpectomy with posterior wall of vertebrae retention was a feasible anterior decompression procedure with advantage of safety, completely decompression and reliable bone fusion. This method included double level of CSM, and cervical fracture as well as two level of local ossification of posterior longitudinal ligament.
2.The complications of the anterior locking cervical plate systems and their prevention
Deyu CHEN ; Lianshun JIA ; Wen YUAN
Chinese Journal of Orthopaedics 2001;0(05):-
Objective To study the complications and prevention methods for the different anterior locking cervical plate systems. Methods One hundred and sixty-seven patients with the cervical spondylotic myelopathy, fracture-dislocations or tumor of the cervical spine were treated using AO, Orion, and SpineTech anterior locking cervical plate systems. The complications related to the different plate systems were observed. Results The complications related to the anterior cervical plate occurred in 19 patients which included protrusion of the fixation screws into disc space,migration of the screws and plate and esophagus fistulae. Most of the complications were caused by improperly technological performance. Conclusion It is important to have correct patient selection and follow the technical principles of the different anterior locking cervical plate systems for the prevention of the complications.
3.Sub-hypothermia Treatment on Patients With Diffusing Axonal Injury
Baodong CHEN ; Xianhou YUAN ; Zhihua WEN
Journal of Chinese Physician 2000;0(11):-
Objective To study the therapeutic effect of sub-hypothermia on 80 patients with diffusing axonal injury (DAI) and its prognosis.Methods All 80 patients with DAI were randomly divided into the sub-hypothermia group(40 cases)and the control group(40 cases). All patients'vital sign,intracranial pressure (ICP) and blood sugar were measured. 40 cases of the patients with DAI were treated by sub-hypothermia, the rectal temperate (RT) reached 32 0℃~35 0℃,sub-hypothermia lasted for 1~7 days; the control group was treated routine. According to Glasgow Outcome Scale (GOS), the prognosis of the patients was evaluated 3 months later.Results In comparison with the control group, increased ICP and raised blood sugar in sub-hypothermia group were significantly decreased (P
4.Treatment of lower lumbar fracture with the USS pedicel screw system
Wen YUAN ; Xinwei WANG ; Deyu CHEN ;
Chinese Journal of Orthopaedic Trauma 2004;0(11):-
Objective To report the clinical outcome of L3~L5 fractures treated with USS short segmental pedicel screw system. Methods From 1994 to 2004, 57 cases of lower lumbar fractures were treated, of which 21 cases were treated with USS pedicel screw system. There were 12 cases of L3 fracture, 8 cases of L4 fracture and 1 cases of L5 fracture. The intervertebral height and lumbar lordosis were evaluated both before and after operation, the spinal impingement of bone was evaluated on CT scan, the neurofunction was evaluated with Frankle system and the clinical outcomes were evaluated with Charles system. Results The operation time ranged from 90 min to 150 min, averaging 120 min. The bleeding volume ranged from 100 ml to 600 ml, averaging 350 ml. The Frankle scores increased from 3.7 to 4.5 after operation. The intervertebral height of the fractured vertebral body increased from preoperative 30%to 60%to postoperative 70%to 100%(averaging 87%). The lumbar lordosis angel increased from preoperative 35.2?8.3o to postoperative 38.3?10.2o. The mobilization time was 3d to 2w, and the time for resuming work was 3 to 6w. The 3 to 30 months follow ups (averaging 15m) showed that the clinical outcomes were excellent in 9 cases, good in 9 cases, fair in 2 in and poor in 1. Conclusion The advantages of treating the lower lumbar fractures with short segmental USS pedicel screw system are effective restoration of intervertebral body height, lumbar lordosis and spinal volume, prevention of long term lumbago and lumbar stenosis, as well as early mobilization and return to work.
5.Anti-tumor activity and mechanisms of IDO1 inhibitor in combined treatment with temozolomide on human glioma cell lines
Acta Pharmaceutica Sinica 2022;57(3):707-715
We analyzed the anticancer effect and mechanism of the novel indoleamine 2,3-dioxygenase 1 (IDO1) inhibitor NLG-919 combined with temozolomide (TMZ) on human glioma cell lines. The anti-tumor activity of NLG-919 and temozolomide after single and combined treatments was detected by MTT assay. Colony formation assay, invasion assay and migration assays were used to detect the effects of NLG-919 and temozolomide alone or in combination on proliferation, invasion and migration of human glioma cells. A flow cytometry assay was used to detect cell apoptosis, cell cycle arrest, reactive oxygen species (ROS) production and mitochondrial membrane potential damage (JC-1). An immunofluorescence assay was used to detect the expression level of IDO1 and HPLC was used to detect the expression level of
7.Articular needling combined with muscular needling for 23 cases of sartorius injury.
Yuan-Qiang WEN ; Li CHEN ; Bo-Ping WEN
Chinese Acupuncture & Moxibustion 2014;34(5):444-444
Acupuncture Therapy
;
instrumentation
;
Acupuncture, Ear
;
Adult
;
Female
;
Humans
;
Male
;
Middle Aged
;
Muscle, Skeletal
;
injuries
;
Muscular Diseases
;
therapy
;
Thigh
;
injuries
;
Young Adult
8.Isolation, Identification and 16S rDNA Sequences Analysis of a Bacterial Resistant to Copper and Cadmium
Yuan-Yuan PAN ; Wen-Li CHEN ; Qiao-Yun HUANG ;
Microbiology 1992;0(03):-
A strain of resistance to copper and cadmium with high concentration, named NTG-01, was isolated from soils of DaYe county mineral area in HuBei province. It can resist copper of 4.5mmol/L and cadmium of 2mmol/L , so we can say that it is a important strain used to study the resistance mechanism of copper and cadmium. A series of morphological and biochemical characteristics and sequences analysis of 16S rDNA reveal that it belongs to the bacteria and is gram negative, short rod, flagella around, the size of bacteria is about 0.8?m?2.0?m , V-P result shows positive, methyl-red result displays negative, and glucose can be utilized to produce acid and gas; In addition to, we find that it has the percent 99 homologous to Enterobacteraerogenes by 16S rDNA sequences BLAST analysis, plus the results of morphological and biochemical parameters, it belongs to Enterobacteraerogenes. We can conclude that NTG-01 has higher resistance to many different heavy metals by measuring MICs values of nine heavy metals at last.
9.Study on Hippocampus Neurogenesis in Rats with Different Ages
yuan-yuan, DAI ; jing, CHEN ; bao-qiang, YUAN ; wen-hui, ZHANG
Journal of Applied Clinical Pediatrics 1994;0(04):-
Objective To explore the effect of age on neurogenesis of dentate gyrus granule cell and the impact on differentiation of newborn cells in rats.Methods SD rats were selected and divided into 5 groups according age of 7,14,28,60,180 d(n=8),and the neurogenesis of dentate gyrus granule cell in hippocampus with normal development was detected,using 5-bromo-BrdU(BrdU) labled newborn neuron and ?-tubulin protein(TuJ1) and glial fibrillary acidic protein(GFAP) labeled glial cells,and understood the newborn cells to neurons and glial cell differentiation ratio.Results Neurogenesis was found in dentate gyrus granule cell layer with hippocampus of all different age rats.Various forms of cells with a larger nucleus that were round,oval,diamond were distributed over the entire granule cell layer.BrdU-positive cells within each group were 158.07?5.37,141.28?7.27,116.93?9.24,76.56?6.88,41.42?4.45,the number of BrdU-positive cells were reduced with the growth of rats(P0.05);4%-5% newborn cells expressed GFAP.In addition,some of the BrdU-positive cells at the same time did not express TuJ1 or GFAP.Conclusions There are neurogenesis in dentate gyrus granule cell in rats of different age.The new born cells mostly differentzate into granule neuron cell.The capability of cell proliferation are decreased with the growth of age.
10.Effect of Qingyi Granule on HMGB1 Expression in Liver and Renal Tissues of Severe Acute Pancreatitis Rats.
Yuan-sheng YANG ; Ken CHEN ; Wen-rui XIE ; Hui WANG
Chinese Journal of Integrated Traditional and Western Medicine 2015;35(11):1367-1372
OBJECTIVETo explore the effect of Qingyi Granule (QYG) on high mobility group box-1 (HMGB1) expressions in liver and renal tissues of severe acute pancreatitis (SAP) rats.
METHODSFifty-four Sprague-Dawley (SD) rats were divided into the sham-operation (SO) group, the SAP group, and the QYG group according to random digits table. Rats in the SAP group were induced by injecting 5% sodium taurocholate (STC). Liver and renal pathological changes were observed by HE staining. Serum contents of amylase (AMS), MDA, IL-1, and HMGB1 were detected by ELISA. HMGB1 protein expressions in liver and renal tissues were tested by immunohistochemistry. HMGB1 mRNA expressions in liver and renal tissues were detected by reversed transcription PCR.
RESULTSThe pathological scores, serum levels of AMS, MDA, IL-1 and HMGB1, and protein and mRNA HMGB1 expressions in liver and renal tissues were increased more obviously in the SAP group than in the SO group (P < 0.05, P < 0.01). All of them could be down-regulated by QYG intervention, with the most significant effect seen at 72 h (P < 0.05, P < 0.01) in a time-effect relationship.
CONCLUSIONSHMGB1 participated in SAP complicated liver and renal injuries. QYG could effectively inhibit HMGB1 expressions, thereby attenuating SAP complicated liver and renal injuries.
Amylases ; Animals ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; HMGB1 Protein ; metabolism ; Interleukin-1 ; Kidney ; metabolism ; Liver ; metabolism ; Pancreatitis ; drug therapy ; metabolism ; RNA, Messenger ; Rats ; Rats, Sprague-Dawley ; Taurocholic Acid