Objective To study the effect of different therapies for posterior lumbar disc herniation.Methods A total of 8 000 patients with lumbar disc posterior surgery were enrolled in this research at our hospital.The technical points of the patients in different times were analysed.The results of the operation were observed.Results From January 1980 to December 1990,patients underwent laminectomy.From January 1991 to December 2000,patients were treated with laminectomy and semi-lamina.From January 2001 to December 2016,the open window accounted for 86.0％,expanding the window or semi-lamina accounted for 11.0％,and the whole laminar plate only accounted for 3.0％.After 2000,the accuracy of the diagnosis was 98.0％,the excellent rate of operation was 99.8％,the average operation time was(80±15)min,and the blood loss was(100±20)mL.Among them,the rate of I/A healing was 99.8％,dural tear rate was 4.0％,nerve root injury rate was 0.5％,and cerebrospinal fluid leakage rate was 0.9％.The incidence of complications in the cases after 2000 was significantly lower.Conclusion By summarizing the operation technique of posterior lumbar disc herniation,the operation error can be avoided and the incidence of complications of surgical injury can be reduced.

Objective To determine the clinical indicators of early death (within 72 hours) in patients with acute paraquat poisoning.Methods The data of 93 acute paraquat poisoning patients admitted to emergency intensive care unit (EICU) of the First Hospital of China Medical University were retrospectively analyzed.The patients were divided into two groups according to whether they died within 72 hours or not.The gender,age,poison dose,paraquat concentration in urine,reduction of paraquat amount in urine after each hemoperfusion,and the worst value of white blood cell (WBC) count,lymphocytes count,arterial blood gas analysis,blood K +,Na+,Cl-,and serum amylase,serum lipase,serum total bilirubin,troponin Ⅰ,creatine kinase (CK),blood urea nitrogen,serum creatinine within 24 hours after poisoning were compared.Spearman correlation analysis was used to analyze the correlation between paraquat concentration in urine and the dose of paraquat.The predictive value of each indicator at death in early stage of poisoning was analyzed with receiver operating characteristic curve (ROC curve).Results Nineteen patients in the group of those died in early stage of poisoning (within 72 hours) resulted in a mortality rate of 20.4％.Compared with non-early death group,in early death group,the value of poison dose (mL:133.4 ± 108.8 vs.58.6 ± 40.0,t=3.145,P=0.002),paraquat concentration in urine [mg/L:16.34 (11.87,96.76) vs.4.46 (1.21,12.78),Z=-3.422,P=0.001],WBC (× 109/L:22.63 ±9.72 vs.14.95 ±8.39,t=3.446,P=0.001),blood lactate [Lac (mmol/L):6.7 (2.2,12.1) vs.1.9 (1.1,3.4),Z=-3.294,P=0.001] were significantly higher,and the reduction rate of paraquat concentration in urine after first perfusion [(38.4 ± 15.63)％ vs.(67.59 ± 27.87)％,t=2.945,P=0.004] and arterial partial pressure of carbon dioxide [PaCO2 (mmHg,1 mmHg=0.133 kPa):28.7 ± 9.3 vs.34.8 ± 6.7,t=-3.245,P=0.002] were significantly lowered.There was no significant difference between two groups in other indexes.Poison dose and paraquat concentration in urine showed significantly positive correlation (r=0.450,P＜0.001).ROC curve showed that the predictive value of paraquat concentration in urine,WBC,and Lac in early death were significant [area under the ROC curve (AUC) of paraquat concentrations in urine was 0.806,95％ confidence interval (95％CI) 0.699-0.913,the cut-off value was 11.64 mg/L,with sensitivity 84.6％,specificity 71.4％; AUC of WBC was 0.734,95％CI 0.569-0.899,the cut-off value was 15.94 × 109/L with sensitivity 69.2％,specificity 76.8％ ; AUC of Lac was 0.729,95％CI 0.568-0.891,the cut-off value was 1.95 mmol/L with sensitivity 84.6％,specificity 42.9％].Conclusions Paraquat concentrations in urine,WBC,Lac,poison dose and PaCO2 were the risk factors of the early death of the acute paraquat poisoning.The research suggests that paraquat concentration in urine,WBC and Lac are valuable in predicting early death of the patients.

Objective　To establish the normal growth velocity of fetal liver length and compare them with those of intrauterine growth retardation, pregnant diabetes and maternal-fetal blood types imcopatible. Method　Three hundred and five normal pregnant women and 24, 10, 16 pathological pregnant women of intrauterine growth retardation (IUGR), gestational diabetes and maternal-fetal blood types incompatible respectively had ultrasonographic measurement of fetal liver length at 18 to 42 weeks′ gestation. Results　Normal fetal liver length has a linear relation to gestational age, and showed a significantly rapid increase after 28th week with a growth rate of 1.76 mm per week, and 1.00 mm per week before 28th week (P<0.05). The growth rate of IUGR group before and after therapy were 1.19 mm and 1.23 mm per week, significantly lower than those of normal group (P<0.05). The growth rate of pregnant diabetes group before and after therapy were 1.63 mm and 1.63 mm per week, no statistical significance with normal group (P>0.05). The growth rate of maternal-fetal blood types incompatible group before therapy was 1.98 mm, showed no difference with normal group (P>0.05), but after therapy, the growth rate of fetal liver was 1.38 mm per week, significantly lower than normal group (P<0.05). Conclusion　Dynamic measurement of fetal liver length can help us to understand whether the fetus grow well in uterus and whether the treatments are effective.

Objective: To analyze the association of recognition and behavior of diabetic rats with the expression of β-amyloid protein (Aβ) and cAMP response element binding protein (CREB), so as to pave a way for studying the role of diabetic metabolic disorder in the mechanism of Alzheimer's disease. Methods: Animal model of diabetes mellitus was established by intraperitoneal injection of streptozocin. Wistar rats were randomly divided into normal control groups (N), 4 week diabetes mellitus model group (M4), 6 week diabetes mellitus model group (M6), and 8 week diabetes mellitus model group(M8). The changes of recognition and behavior were tested by Morris water maze task and shuttle box task. Congo red staining was used to detect the deposition of beta-amyloid in the brain tissues. Expression of Aβ was measured by enzyme linked immunosorbent assay. CREB and pCREB were tested by enzyme linked immunosorbent assay, RT-PCR, and Western blotting assay. Results: Behavioral tests showed that the learning ability and memory of animals in the diabetes mellitus model groups were impaired and significantly decreased compared with those in the normal control group(P<0.01). Compared with the normal control group, the model groups showed higher Aβ expression and lower CREB and pCREB expression (P < 0.01), with no significant difference found between the three model groups. The expression of Aβ was negatively correlated with the expression of CREB and pCREB, and was positively correlated with learning and memory impairment of animals. CREB and pCREB were negatively correlated with the learning ability and memory impairment of animals. Conclusion: Diabetes mellitus can contribute to Alzheimer's disease through increasing expression of Aβ and decreasing expression of CREB and pCREB.

Objective: To observe the influence of minocycline on expression of NF-κB, GFAP, and IL-1β in rats with vascular dementia, so as to study the neuroprotective mechanism of minocycline for vascular dementia. Methods: An animal model of vascular dementia was established by chronic bilateral common carotid artery occlusion (BCCAO). Animals were randomly divided into sham-operation group(S), 4-week model group (M4), 8-week model group (M8), 16-week model group (M16), 4-week model + Minocycline group (T4), 8-week model+Minocycline group (T8), and 16-week model+Minocycline group (T16). The behaviors of animals were tested with Morris water maze and shuttle box task. Expression of NF-κB and GFAP was measured by enzyme linked immunosorbent assay (ELISA), immunohistochemistry and Western blotting,and IL-1β by ELTSA. Results: Minocycline greatly improved the behaviors of mice with vascular dementia, and promoted the learning, memory and responding abilities. The expression of NF-κB, GFAP and IL-1β in all the model groups and Minocycline treatment groups were significantly higher than that in the sham-operation group (P<0.01); and those of Minocycline treatment groups were significantly lower than the corresponding model groups (P<0.01). Conclusion: Minocycline can decrease the expression of NF-κB, GFAP, and IL-1β in the brain of rats with vascular dementia, and protect brain by inhibiting the activation of astrocytes and neuroinflammation.

In order to enhance the survival rate of abalone larvae, antibiotic susceptibility tests were performed on the bacteria isolated from whitened postlarvae, biofilm and the pond water of abalone (Haliotis diversicolor superteta) and proven to be virulent pathogens by challenge tests. API tests indicated that the isolates were mainly comprised of Vibrio alginolyticus, vibrio cholerae, Vibrio parahaemolyticus, the total Vibrio number of which was seventeen and made up about 50% of the total population. Among vibrios, Vibrio alginolyticus was the dominant strain (11 isolates) and made up 70%. Antibiotic susceptibility tests demonstrated that while majority isolates exhibited relatively high sensitivities toward streptomycin, erythromycin and gentamycin, they nevertheless displayed resistance to tetracycline and novobiocin. Results clearly indicated that streptomycin, erythromycin and gentamycin could be potentially used to suppress vibrio growth and hence improve abalone postlarval survival rate.

Adult ; Bone Neoplasms ; pathology ; surgery ; Female ; Giant Cell Tumor of Bone ; pathology ; surgery ; Humans ; Patella

Computer-Aided Design ; Humans ; Mandibular Fractures ; diagnostic imaging ; surgery ; Mandibular Neoplasms ; diagnostic imaging ; surgery ; Mandibular Reconstruction ; methods ; Surgery, Computer-Assisted ; methods ; Tomography, X-Ray Computed

Child ; Chorea ; physiopathology ; Dyskinesias ; diagnosis ; physiopathology ; Humans ; Polysomnography ; methods ; Sleep ; physiology

Air Pollutants, Occupational ; analysis ; Chromatography, Gas ; methods ; Methyl Ethers ; analysis ; Workplace