Objective: To analyze the characteristics of diffusion tensor magnetic resonance imaging in patients with cerebral infarction and to explore the values of diagnosis and predicting prognosis of diffusion tensor imaging (DTI) in patients with cerebral infarction in different stages. Methods: Forty patients with cerebral infarction in different stages and 40 healthy volunteers were examined by magnetic resonance imaging (MRI), including conventional T1 and T2-weighted imaging, diffusion-weighted imaging and DTI. Fractional anisotropy (FA) images were reconstructed. The values of FA and apparent diffusion coefficient (ADC) were measured in the infarcted regions, corresponding contralateral normal regions and corresponding normal regions in normal control group. Results: DTI showed that the size of infarction foci was more accurate and clearer than that of the conventional MRI. The FA values of the infarcted regions, infarcted ipsilateral posterior limb of internal capsule, cerebral peduncle, and corticospinal tract in cerebral infarction group were 0.12 ± 0.01, 0.29 ± 0.03, 0.36 ± 0.12 and 0.35 ± 0.04, respectively. They were lower than those in the contralateral corresponding regions 0.35 ± 0.08, 0.50 ± 0.13, 0.53 ± 0.14 and 0.56 ± 0.07, and they all had significant differences (P < 0.05). There were no significant differences between the ADC and FA values at the uninjured sides in patients with cerebral infarction as compared with the corresponding regions in the normal control group (P > 0.05). The FA and ADC values in brain tissues changed regularly with the time of infarction after cerebral infarction. The FA values in the affected sides had no consistent changes as compared with the contralateral sides in the superacute phase. They increased or decreased slightly, then (during acute stage, subacute stage and chronic stage) decreased irreversibly; the ADC values in the affected sides changed with time regularly; they decreased significantly; then gradually returned to normal, and after that increased again. Conclusion: DTI examination contributes to the diagnosis of cerebral infarction. The combination of the ADC and FA values may more accurately conduct clinical stage and evaluate the time of the occurrence of cerebral infarction.

Bone Diseases, Metabolic ; physiopathology ; Bone and Bones ; metabolism ; physiopathology ; Child ; Child Nutrition Disorders ; physiopathology ; Child Nutritional Physiological Phenomena ; physiology ; Humans ; Infection ; physiopathology ; Kidney Failure, Chronic ; physiopathology

Allergens ; immunology ; Animals ; Asthma ; etiology ; Enzyme Activation ; Lung ; pathology ; Matrix Metalloproteinases ; physiology ; Mice ; Respiratory Syncytial Virus Infections ; enzymology ; pathology

Objective To explore the clinical significance of the changes of interleukin-6(IL-6) contents in serum and urine in children with primary nephrotic syndrome(PNS).Methods The contents of IL-6 in serum and urine in 38 cases of PNS were exa-(mined) by ELISA before and after treatment with prednisone 2 mg/(kg?d) for 8 weeks.Results Before the treatment with prednisone,the contents of IL-6 in serum in steroid-responsive group and steroid-resistant group were significantly higher than those in the normal controls(P0.05).In the steroid-responsive group and steroid-resistant group,the levels of IL-6 in urine were significantly higher than those in the normal controls(P0.05).The contents of IL-6 in steroid-resistant group in serum and urine had significant difference in the comparison with the normal controls(P

Objective To determine the protective effects of endotoxin preconditioning on the brain ischemic injury and explore its protective mechanism. Methods Global ischemia for 20 min by four-vessel occlusion model was used in 140 Wistar rats, in which 70 rats were pretreated with MPL at dose of 20 ?g/kg 24 h before global ischemia. Another 10 Wistar rats served as normal controls. Ischemic neurons and neuron density of the hippocampal CA1 region, MPO activity, TNF-? activity, IL-1? activity were assayed at 4, 12, 24, 48, 72, 120, 168 h after reperfusion. Results Pretreatment with endotoxin produced significant reductions in ischemic neuron number, MPO activity, TNF-? activity and IL-1? activity. Conclusion Endotoxin preconditioning protects brain from subsequent ischemic injury, in which the suppression of cellular inflammation may be the protective mechanism.

Medical laser equipment are widely used in clinic with significant improvement in medical technologies.Security incidents in clinic take place frequently,so safety standards should be standardized.According to the experience in working,dynamic management processes to upgrade the safety control level in using medical laser equipment are expounded.The ultimate purpose is to achieve more effective safety and quality management.

Objective To comprehend the action mechanism of simvastatin in pulmonary hypertension(PH)when it induced by high pulmonary blood flow.Methods Abdominal aorta-inferior vena cava shunting was made in rats to establish animal model of PH induced by high pulmonary blood flow,simvastatin with dose of 2 mg/(kg?d)was used to interfere for 11 weeks.And then,pulmonary arterial pressure,apoptosis rate and proliferation rate of pulmonary vascular smooth muscle cell were determined.Results were compared with other groups.Results Simvastatin could cut down the pulmonary arterial pressure well,pulmonary arterial pressures of simvastatin group rats were lower than those of spliting groups obviously(Pa

Objective To improve the accuracy of diagnosis of the greater omentum blunt trauma(GOBT)by analyzing the MSCT findings and pathological features.Methods The MSCT appearances of 5 1 cases of GOBT with operation and (or)pathological con-firmed were analyzed retrospectively.All patients were underwent MSCT plain scan in whole abdomen.Two experienced radiolo-gists blinded to the clinical diagnosis,reached a diagnosis from the MSCT findings by two ways of plain and plain joint post-process-ing MSCT images.The detection rates of GOBT were compared by two-related-samples Fisher exact probability chi-square test.Re-sults Fifty-one cases of GOBT were distributed over the intestine,in the superior abdominal cavity,the left and the right abdominal cavity,those cases were 27,18,3 and 3 respectively.The MSCT findings of GOBT mainly consist of greater omentum(GO)streak-ing,GO hematoma and fluid around GO.Those detectable rates were 80.3%,68.6%and 90.2 % respectively.The accuracy in di-agnosis of GOBT with MSCT was 94.1%(48/51)in our study.The detection rate of GOBT by two ways was significant (P=0.04).The detection rate of GOBT was increased obviously by the way of plain joint post-processing MSCT images.Conclusion MSCT manifestations of GOBT has some characteristics.A more accurate diagnosis of GOBT could be made according to the MSCT findings by plain joint post-processing MSCT images.

Objective To study the analysis of non-small cell lung cancer patients with multiple brain metastases with erlotinib combined with whole brain radiation therapy clinical observation and effect of C on vascular endothelial growth factor level. Methods 40 cases of non - small cell lung cancer patients with multiple brain metastases treated in Taizhou tumor hospital from January 2015 to April 2016 were selected and randomly divided into the control group and the experimental group, with 20 patients in each group. The control group and the experimental group patients were given clinical treatment of whole brain radiotherapy, the control group was given routine treatment, the experimental group received erlotinib. The clinical effects of the 2 groups were compared and analyzed. Results After the corresponding treatment, the experimental group of 20 patients, 8 cases of complete remission, 7 cases of partial remission, the number of effective treatment for 15 cases, the treatment rate was 75.0％. Of the patients in the control group, 6patients had complete remission, and 4 patients had partial remission. The effective rate was 50％. Available, the effective rate of the treatment group (75.0％) was significantly higher than that of the control group (50.0％), with statistical difference (P<0.05). The survival rate of the experimental group after one year (80.0％) was significantly higher than that of the control group (60.0％), with statistical difference (P<0.05). The level of vascular endothelial growth factor (C) in the experimental group was significantly lower than that in the control group (P<0.05). Conclusion Non small cell lung cancer patients with multiple brain metastases with erlotinib combined with radiotherapy in the clinical treatment effect of whole brain is better, can improve the survival rate in a large extent, improve the endothelial growth factor C levels, with the further promotion of the clinical significance.