[Objective]To analyze the factors of post-operative deformity after posterior approach vertebral pedicle fixation in treatment of dorso-lumbar spinal fractures.[Method]Between 2000.10～2005.11,32 patients of single dorso-lumbar spinal fracture were hospitalized.compressive type 5 cases,explosive type 27 cases.T11 12 cases,T12 11 cases,L1 5 cases,L2 3 cases,L3 1 case.The patients were devided into 3 groups according to the severity of related chondral plates injuly,group 1: without chondral fracture 11cases,group 2: with upper chondral plate fracture 15 cases,group 3: with both upper and lower chondral plate fractures 6 cases.By the formula to measure the average height of fractured vertebral body and its kyphotic Cobb's angle before operation,after operation and at time of follow-up,and calculate the result stastically.[Result]All 32 patients were followed-up for 10～56 months(average 23 months).The results indicated that the patient's preoperative condition was negatively correlated with the average vertebral height which is followed-up.The worse condition was,and the greater loss of postoperative vertebral height was.Furthermore,the patient's situation before operation had a positive correlation with the Cobb's angle of vertebral followed-up.When the patient's condition was worse,the postoperative angle of deformity was larger.[Conclusion]Posterior approach vertebral pedicle fixation in treatment of dorso-lumbar spinal fractures may result in reccurence of vertebral deformity,which is related to the severity of injury of vertebra and its chondral plates,so that to those patients related with chondral plates injuries,the vertebral pedicle fixation should be combined with anterior bone grafting,or with bone grafting into vertebral body after reduction.

Child, Preschool ; Combined Modality Therapy ; Drugs, Chinese Herbal ; therapeutic use ; Female ; Gastrointestinal Diseases ; drug therapy ; Humans ; Infant ; Male ; Phytotherapy ; Plant Extracts ; therapeutic use

To investigate the biological role of snake venom cystatin(sv-cystatin) in tumor progression, the cDNA of sv-cystatin amplified by PCR from pUC18-cystatin plasmid was cloned into methanol-inducible expression vector pPICZ?A. The linearized recombinant plasmid pPICZ?A-cystatin was transfered into Pichia pastoris, strain GS115 by electrophoration. Transfermants with phenotype Mut+ selected were identified by PCR analysis and induced in 1.0% methanol. The reombinant sv-cystatin protein was examined by SDS-PAGE, Western blot analysis. The molecular mass of expression product was about 14 kDa and approximately 16 mg/L of recombinant sv-cystatin was produced from one of GS115-cystatin transformants. The chromatography purified protein could reduce the activity of papain. The ability of B16F1 cells treated with recombinant sv-cystatin to invade the reconstituted basement membrane decreased significantly (P

Objective To investigate the analgesic effect of oxysophoridine(OSR)and the influence of verapamil(Ver)on the antinociception of OSR when two drugs were co-administrated in mice.Methods The number of writhing within 15 min after ip different doses of OSR was observed in painful mouse mo- dels caused by acetic acid.The hot plate method was used to assess nociceptive sensitivity of CaCl_2 and Ver before ip OSR.Nitric oxide(NO)in serum was measured by spectrophotometry.Results The number of writhing was decreased and the latency of licking the hind paws was prolonged in a dose-dependent manner after ip OSR.The antinociception of OSR could be antagonized by CaCl_2 and enhanced by Ver.No inter- ference was detected in serum volume of NO.Conclusion These results suggest that OSR can antagonize the acute pain caused by acetic acid and hot plate in a dose-dependent manner in mice.Calcium channel blocker could enhance the effect of OSR.

Objective To explore ear reconstruction using autologous rib cartilage ear framework by multi-layer spliced sculpture in microtia patients.Methods From Feb 2010 to May 2011,29 microtia patients were subjected to ear reconstruction using autologous rib cartilage ear framwork by four-layer spliced sculpture.Results In one operation 29 patients achieved 2 cm transverse height of reconstructed ears which were basically coincidence with the normal side.Patents and their families were all satisfied with the results.Follow-up of 3-12 months showed that only 1 case reconstructed-ear height was significantly lower transverse process.Owing to sleeping position,the patient did not protect the reconstructed ear,leading to frequent reconstructed-ear pressure.Conclusions The method of multi-layer spliced sculpture autologous rib cartilage ear reconstruction has good clinical effect.It can make reconstructed ear reach nomal transverse height and avoid the third rib cartilage transplant operation to continue increasing the transvers height.

BACKGROUND: The treatment of multilevel cervical spondylotic myelopathy (MCSM) aims at sustaining the spinal cord compression and restoring the stability of the cervical vertebrae at most.OBJECTIVE: To analyze the clinical characters of anterior cervical discectomy with fusion and expansive open-door laminoplasty for MCSM.METHODS: Sixty-seven patients with MCSM were divided into two groups, and treated with anterior cervical discectomy with fusion (group A) or posterior cervical expansive open-door laminoplasty (group B). All the patients were followed up for 12 months, and the range of motion of cervical vertebrae, cervical curvature index were observed,as well as the Visual Analogue Scale and Japanese Orthopaedic Association scores were condueted. Moreover, the operation time, blood loss and adverse reactions were recorded.RESULTS AND CONCLUSION: (1) The loss of range of motion of the cervical vertebrae in the group B was significantly less than that in the group A (P < 0.05). (2) The cervical curvature index in the group A was significantly improved (P < 0.05), but the index had no significant change in the group B. (3) The axial systems were significantly improved in both groups, especially in the group A (P < 0.05). (4) The neurological function was significantly improved in both groups (P < 0.05), which showed no significant difference between two groups (P > 0.05). (5) The intraoperative blood loss in the group B was significantly more than that in the group A (P < 0.05). (6) The incidence of hoarseness and dysphagia in the group A was 19％. The incidence of wound infection, cerebrospinal fluid leakage and C5 nerve root palsy in the group B was 9％. (7) These results suggest that during choosing an appropriate method for MCSM,surgeons' skills and patients' situation should be considered.

Objective To investigate the changes of pulmonary capillary wedge pressure(PCWP) before and after off-pump coronary artery bypass graft(OPCABG) using transesophageal echocardiography(TEE). Methods Mitral valve flow(MVF) and pulmonary veinous flow(PVF) were measured in 46 patients before and after OPCAB using TEE and PCWP was detected by cardiac catheter. The correlations between indices derived from TEE and catheterization-measured PCWP and the differences before and after OPCAB were studied. Results There were obvious differences in the indices derived from TEE and PCWP which could reflect the left ventricular function. The most indices measured in PVF and MVF correlated with PCWP(r=(0.30)-(0.76),P

To simplify the macrocyclic fragment and to modify the zinc binding group of the natural product apicidin, two series of S-hexyl (heptyl) ethanethioate derivatives were designed and synthesized. Twenty-six compounds were synthesized and confirmed with 1H NMR, IR, MS and HR-MS spectrum, which were not reported. Take vorinostat as control, their antiporliferative activities against cancer cell lines, MCF-7 and HL-60, were tested with MTT assay or trypan blue staining method. Generally in both series it was found that, the chiral carbon atom at 7 position is not necessary, compounds II-1, II-3, II-6 and II-13 showed good activity on HL-60 cells in vitro, with the IC50 values less than 10 micromol x L(-1). II-7 and II-8 showed stronger activity against MCF-7 than Vorinostat, with the IC50 of 3.19 and 6.29 micromol x L(-1), respectively.
Antineoplastic Agents ; chemical synthesis ; chemistry ; pharmacology ; Cell Proliferation ; drug effects ; Drug Screening Assays, Antitumor ; HL-60 Cells ; Histone Deacetylase Inhibitors ; chemical synthesis ; chemistry ; pharmacology ; Humans ; Inhibitory Concentration 50 ; MCF-7 Cells ; Peptides, Cyclic ; chemical synthesis ; chemistry ; pharmacology ; Structure-Activity Relationship

Objective To optimize the short tandem repeats(STR)which link closely to survival motor neuron(SMN)and have redundant polymorphism information contents,and to use these STR in the prenatal diagnosis of spinal muscular atrophy(SMA).Methods Eleven STR loci(D5S435,D5F153, DSF151,D5S637,D5S1413,D5S125,D5S464,D5S1556,DSF149,D5S351,MAP1B-5')were amplified by PCR.Then the PCR products were detected by polyacrylamide gel electrophoresis(PAGE)and analyzed by silver staining.STR loci were evaluated and optimized by their PIC values.PCR-PAGE and gene scan were combined to make genetic link analysis for SMA families based on the optimized STR.Results Three STR loci(D5S435,DSF149 and D5S351)were selected with 8,19 and 18 polymorphic fragments detected respectively in 100 normal individuals.Their PIC values were 0.84,0.91 and 0.92 respectively.Four carriers and 2 normal individuals were detected from 6 SMA families with linkage analysis by using the 3 STR.Conclusion This genetic diagnosis system based on the 3 STR loci can provide rapid prenatal diagnosis for SMA families,can eliminate maternal blood contamination,and also can discriminate carriers from normal individuals in the fetuses,which makes the prenatal diagnosis system of SMA perfect.

Sulfur fumigation, which is traditional method for preservation, pest control, insecticide and sterilization, has long been widely used in processing and storage and played a positive role of traditional Chinese medicine (TCM). As some businesses sided pursuit of profit, abused and repeated use of sulfur fumigation, have resulted in a large number of harmful residues, such as sulf dioxide (SO2) and harmful heavy metals, which brings a significant impact and danger on human health. This article summarizes the sulfur species and the sulfur fumigation methods and analyzes the harmful substances in TCM after sulfur fumigation, to provide a reference of the choice of species for the sulfur, the optimization of sulfur fumigation process and the standardized processing of TCM after sulfur fumigation.
Animals ; Drug Contamination ; Fumigation ; methods ; Humans ; Medicine, Chinese Traditional ; methods ; Safety ; Sulfur ; chemistry ; Technology, Pharmaceutical ; methods