Acupressure ; Acupuncture Points ; Acupuncture Therapy ; Adolescent ; Adult ; Child ; Combined Modality Therapy ; Female ; Humans ; Male ; Spasm ; therapy ; Stomach Diseases ; therapy ; Young Adult

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Objective To investigate the effect of intermedin (IMD) on tubular cells apoptosis induced by renal ischemia/reperfusion (I/R) injury and its associated mechanism.Methods A total of twenty-four male Wistar rats were randomly divided into four groups (control group, I/R group, empty plasmid group and IMD group). One week after the removal of right kidney, ultrasound plasmid was used to transfect empty or IMD plasmid into the left kidney. Renal I/R model was made by clasping the left renal artery for 45 minutes. Tubular cell apoptosis was determined by TUNEL. Expression of Bax, Bcl-2, Fas was detected by semi-quantitative RT-PCR.Activity of caspase-8 and caspase-9 was evaluated with commercially available kits respectively.Protein level of caspase-3 was measured by Western blotting analysis. Results Compared with control group, apoptosis of tubular epithelial cells, expression of Bax and Fas, activities of caspase-8 and caspase-9, as well as protein level of caspase-3 were all significantly increased in I/R group (all P＜0.05). IMD pre-treatment significantly inhibited all these effects (all P＜0.05). There were no differences of above parameters between empty plasmid group and I/R group. Conclusion IMD pre-treatment protects against renal I/R injury by inhibion of tubular epithelial cell apoptosis.

Adult ; Aged ; Aged, 80 and over ; Granuloma ; drug therapy ; Humans ; Laryngeal Diseases ; drug therapy ; Male ; Middle Aged

Adult ; Faculty ; Female ; Humans ; Lipoproteins ; blood ; Lipoproteins, HDL ; blood ; Lipoproteins, LDL ; blood ; Male ; Middle Aged ; Multivariate Analysis ; Regression Analysis ; Sampling Studies ; Surveys and Questionnaires ; Universities

Adolescent ; Adult ; Audiometry, Pure-Tone ; Ear Protective Devices ; utilization ; Humans ; Middle Aged ; Noise, Occupational ; prevention & control ; Young Adult

Objective To analyze retrospectively the MR features of MELAS patients,in order to improve the early diagnosis of MELAS.Methods MR data of 1 6 MELAS patients confirmed by clinical diagnose and muscle biopsy were retrospectively analyzed. MR features of plain scan(n=1 6),ASL(n=3),MRA(n=1 5),DWI(n=14)and MRS(n=3)were analyzed.Results MRI data demonstrated brain lesions mainly distributed in posterior cerebral hemisphere extending to subcortical area,which was not consistent with the vascular supply territories.The lesions were observed as low signal on Spin-echo sequence of T1 WI,while high signal on T2 WI, FLAIR and DWI.The focal lesions showed increasing Lac peak on MRS.Fifteen of 16 patients underwent MRA and one showed increased arterial branches in lesion zones.Three patients had ASL scanning demonstrating high irrigation in lesion zones which would wander once relapsed.Meanwhile,old lesions showed encephalatrophy and cerebromalacia.All patients’muscle biopsy pathology showed ragged red muscle fibers.Under electron-microscopic,bioblasts were bigger and more than average level and muscle fibers atrophied.Mitochondrial DNA sequence of 3 patients showed mtDNA A3243G transgenation.Conclusion The DWI,MRS and ASL sequences show good ability in MELAS diagnosis and differential diagnosis.

Objective To investigate the value of theory-practice integrated in the course of medical imaging diagnosis. Methods The teaching method of bone and joint system was adjusted based on theory-practice integration. 212 students of department of medical imaging were divided into group A (95 students, Grade 2009) and group B (117 students, Grade 2010). The traditional teaching method was adopted in group A, and the theory-practice integrated teaching method was adopted in group B. The teaching effect was evaluated by the exam results(theory and experimentation) and ques-tionnaire. SPSS 13.0 software was used and the measurement date were expressed by x±s. Statistical analysis was performed using t test, with the level of test α=0.05. Results The results of theoretical exam (P=0.024),practical exam (P=0.017) and questionnaire of group B was higher than group A (P=0.00). Conclusions LBL、CBL、TBL integrated teaching method is better than traditional teaching method, especially in improving the students' ability of linking up theory with practice, learning initia-tive, teamwork.