Malignant tumor severely endangers the health of people. Scholars in and abroad believed that the causes of malignant tumor are related to people's mental disorder. Emotional imbalance had immediate influences in the whole process of tumor, including the occurrence, progressing, treatment, and recovery. Therefore, we should pay more attention to regulate the emotion for the patients with malignant tumor.

Objective To investigate the role of sICAM-1 and TNF in the acute rejection of renal graft. Methods Serum sICAM-1 and TNF were sequentially determined in 41 patients with renal graft by ELISA and L_(929) target cell methods. Results The change of serum sICAM-1 was same as TNF, there was no significant difference in serum sICAM-1 and TNF among healthy controls, uremic patients, CsA toxioosis and stable transplantation. During acute rejection(AR) and infection episode, both serum sICAM-1 and TNF were obviously elevated. While the serum creatinine had no significant changes during infection, the serum sICAM-1 and TNF were elevated as early as 1～3 days before the rise of serum creatinine. Conclusion The serial assay of serum sICAM-1 and TNF would be helpful in the early diagnosis and differential diagnosis of AR.

Objective To study the CT diagnosis and differential diagnsis of hypoxic ischemic encephalopathy (HIE)in neonates.Methods 55 cases who had clear history of asphyxia in perinatal period and had clinical symptoms were scanned with CT.The complete clinical materials and CT data were analyzed.Results The clinical and CT grades were conducted according to references.The results showed that there was difference between CT grades and clinical manifestation.Subarachnoid hemorrhage was the most common complication.The density of the lesions was significantly different from that in normal sites.Conclusion In the CT diagnosis of HIE,clinical data and anatomical structure of neonates are both critical for the correct diagnosis.

目的观察盐酸文拉法辛治疗慢性疼痛的临床疗效。方法慢性疼痛中具有抑郁症状的患者90例分为两组，每组45例。Ⅰ组：曲马多缓释剂100 mg，每日2次；Ⅱ组：曲马多缓释剂100 mg,每日2次，盐酸文拉法辛75 mg，每日1次。4周后记录Zung氏抑郁评分（SDS）和疼痛视觉模拟评分(VAS)。结果治疗后组内和组间的SDS、VAS值均有显著性差异。结论盐酸文拉法辛可增加镇痛药物疗效。

The image guided radio therapy (IGRT) Imaging System based on cone-beam computer tomography (CBCT) can reach the goal of improving the accuracy of the radiotherapy. However, because the clinical registration between CBCT images and Planning CT images is carried out manually, it inevitably reduces radiation positioning accuracy to some extent. To tackle the problem, we proposed a new feature vector selection method for the CBCT image elastic registration in the framework of hierarchical attribute matching mechanism for elastic registration (HAMMER) algorithm. We analyzed the characteristics of HAMMER algorithm and used Canny operator which has a better edge detection and positioning performance to replace the noise-sensitive gradient amplitude. Therefore, we used a new attribute vector, which consisted of the intensity, Laplacian of the Gaussian and Canny operator, to ex tract the image feature points in CBCT and planning CT images. We also presented an adaptive feature-point selection method and the choice criteria of attribute vector weights. Experimental results showed that the new feature vector effectively avoided the noise interference resulted from scattering lines in CBCT images to improve registration accuracy, and it also decreased the required feature point numbers and reduced the computation redundancy, so that it provided a new approach for the clinical elastic registration of CBCT and Planning CT rapidly and accurately.
Algorithms ; Cone-Beam Computed Tomography ; Humans ; Radiotherapy ; methods ; Radiotherapy Planning, Computer-Assisted

Objective To establish the assay method of hydroxyproline(HYP) level in rat lung tissue for evaluating the lung fi-brosis degree .Methods The impact of different acid hydrolyzable time ,oxidative time ,developing time on the assay results of the HYP level in rat lung tissue was studied .On this basis ,the assay method for determining the HYP level was established and prelim-inarily applied in the detection of the HYP level in rat lung tissue .Results The optimal condition for the HYP level detection in rat lung tissue was as follows :7 .50 mol HCL was hydrolyzed for 16 h at 110 ℃ ,oxidized for 10 min at room temperature and devel-oped for 25min at 60℃ .The sensitivity of this method was 0 .067μg/mL .The recovery rate and the average CV of this method were 88 .85% -110 .88% and 4 .70% -6 .60% ,respectively .In the study of bleomycin induced rat lung fibrosis ,the HYP level of the model group was obviously higher than that of the control group .Conclusion This method has high sensitivity ,high recovery rate and good reproducibility ,and may be used as a reliable quantitative method to judge the lung fibrosis level in clinic .

Many medical journals have already digitalized their publishing procedure,but not achieved digital publishing yet.Utilizing digital technology,digital publishing can achieve the functions that paper media cannot,such as information storage,fast search,real-time publishing,individualized information and interaction with readers.These functions entail digitalization of medical journals,and involve a range of macro- and micro-modifications,including laws,industry policies,personnel training,and culture development.There is a long way to go for Chinese medical journals to enter the stage of digital publishing.

BACKGROUND: Studies have demonstrated that trehalose possesses protective effects on cyropreserved sternum. But the mechanism of action remains poorly understood. OBJECTIVE: To investigate the effects of trehalose on bcl-2 and bax mRNA expression in cryopreserved sternum. METHODS: Four groups of freshly prepared solution were used: low-potassium dextran (LPD), LPD + dimethyl sulfoxide (DMSO), LPD + trehalose, LPD + DMSO + trehalose. Rat sternum was cut and then immediately cryopreserved in the tubes containing each group of solution. Fresh rat sternum tissue and 4 groups of samples cryopreserved for 120 days were taken and bcl-2 and bax mRNA expression in fresh and cryopreserved sternum was detected using reverse transcription-polymerase chain reaction.RESULTS AND CONCLUSION: bcl-2 mRNA expression in the LPD + trehalose group was significantly higher, but bax mRNA expression was significantly lower, than in the LPD, LPD + DMSO groups (both P < 0.01). LPD + DMSO + trehalose group showed highest bcl-2 mRNA expression and lowest bax mRNA expression, which were basically similar to fresh bone tissue (P > 0.05). These findings indicate that trehalose may protect cell activity in cryopreserved sternum by enhancing bcl-2 mRNA expression and inhibiting bax mRNA expression, and trehalose together with DMSO shows better protective effects.

Objective To analyze the CT appearances and the classification of gray matter heterotopia.Methods The clinical and CT data of 26 cases with gray matter heterotopia were retrospectively reviewed,11 were males and 15 were females,ranged in age from 2 days to 9 years with a mean of 2.6 years.Results The classification of heterotopia included:(1)Subependymal heterotopia in 14,5 cases with encephaloceles,1 case with Dandy-Walker malformation and 1 case with arachnoid cyst of cisterna megna.(2)Subcortical heterotopia in 7,4 cases with callosal agenesis were accompanied.(3)Band heterotopia in 5.Conclusion CT scan can not only reveal the appearances of the subependymal,subcortical and band types heterotopia,but also show other associated abnormalities.