Objective To investigate the incidence and distribution of over-weight and obesity and the relationship between the body mass index (BMI) and the chronic diseases in the elderly of community in Beijing. Methods The medical check-up data of 1513 elderly inhabitants randomly selected from the 134 communities in Beijing were analyzed. Results The proportions of old people with overweight and obesity were 48.9% and 12.8% respectively, and 36.5% of them were having normal body weight. The incidence of hypertension, coronary heart disease (CHD), diabetes mellitus (DM), hyperlipidemia, hyperuricemia and fatty liver were significantly higher in the over-weight and obese people than that of people with normal BMI. Multiple logistic regression analysis showed that BMI was positively correlated highly with hyperlipidemia and fatty liver (P

Objective To investigate the characteristics of Wallerian degeneration (WD) of secondary pyramidal tract after supratentorial cerebrovascular diseases, and to study the relationship between secondary WD and clinical performance. Methods We retrospectively reviewed and investigated the results of brain CT films of 272 cases suffered from supratentorial cerebral vascular diseases during 2001 till 2004. The number of supratentorial disorders was counted respectively in WD group and non-WD group, the distribution feature of these disorders was analyzed, and the changes in the cerebral peduncles of the midbrain and Activities of Daily Living Scale (ADLs) were determined. The information obtained was analyzed statistically respectively. Results Seventy-four cases of secondary WD were found, the rate of WD outbreak was 27.2%. In WD group, the ipsilateral cerebral peduncle of supratentorial disorder was significantly narrower than contralateral cerebral peduncle (P

Objective To investigate the prevalence and distribution of metabolic syndrome in the middle-aged and elderly community population of Beijing. Methods The medical check-up data in 2335 middle-aged and elderly persons, who were sampled randomly from the 136 communities in Beijing, were acquired and analyzed. Results The incidences of the middle-aged and elderly people with metabolic syndrome (MS), obesity, essential hypertension, glucose metabolic disorder, hyper triglyceridemia 28.7%, 40.2%, 56.7%, 64.1%, and 38%, respectively. In the groups of old and very old persons, the respective incidence of MS, blood sugar disorder, and essential hypertension was higher, and obesity and hyper glyceridemia were significantly lower than that of middle-aged group. Conclusion The incidence of MS is very high in the middle aged and elderly community population of Beijing. The incidence of MS and its components in the middle aged people are different from that of elderly population.

Objective To investigate the effects of FGF 2 on the intercellular communication in the cardiac myocytes. Methods The primary neonatal ventricular myocytes of rats were cultured with FGF 2 (0,1,10,100 and 1000ng/ml) for 1 or 4 days. Then the mean fluorescence recovery rate (MFRR, %/min) of these myocytes labeled with carboxyfluocein diacetate after photo bleaching was examined with laser scanning cytopmetry (ACAS Ultima). Results The MFRR levels of the myocytes cultured with FGF 2 (10 and 100ng/ml) groups for 1 day were significantly decreased compared with the control group, while no statistic changes were found among the other groups (FGF 2, 1 and 1000ng/ml) and the control. After FGF 2 exertion on the myocytes for 4 days, the increased cell number, enlarged cellular body and decreased MFRR level were found in the myocytes cultured with FGF 2 (10 and 100ng/ml) groups. And the decreased cell number, disarranged and shrunk cells and significantly increased MFRR level were gotten in the group (FGF 2 1000ng/ml) compared with the control group. Conclusion These results suggested the FGF 2 may have both short and long term effects on the cell cell communication in the cardiac myocytes mediated by gap junction, and be necessary to the cardiac myocyte coordination during the cell growth, differentiation and perhaps apoptosis.

Objective:To revise the Chinese version of the Effort-Reward Imbalance for Learning Scale (LE-RIS)and examine its validity and reliability. Methods:Totally 230 middle school students from Shaanxi Province were recruited for the preliminary survey of the LERIS (214 valid questionnaires). The formal LERIS was set through item analysis and exploratory factor analysis. Then,5 10 middle school students from Shandong and Shaanxi Province were selected to complete the formal LERI for the confirmatory factor analysis and the Internal consistency analysis. The Study Stress Questionnaire for Middle School Students (SSQMSS )were selected as the criterion measurement which to examine the association between study stress and effort-reward imbalance. Test-retest relia-bility were examined by 260 participants random selected after one month. Result:The Chinese version of the LERI with 10 items had 3 dimensional structures,which were effort,reward and overcommitment. Confirmatory factor a-nalysis showed that the Chinese version of the LERI had good structure validity (RMSEA=0. 0,NFI=0. 901,CFI=0. 910,GFI=0. 905,PGFI=0. 521). The Cronbach's αcoefficients were 0. 86 to 0. 89 for the three subscales, and the test-retest reliability coefficients were 0. 63 -0. 7 1 for the three subscales. Conclusion:It suggests that the Chinese version of the Effort-Reward Imbalance for Learning (LERI)is a reliable and valid assessment and couldbe used as an effective and reliable tool for assessing academic pressure of middle school students in china.