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The Expressional Changes of Nitric Oxide Synthase in the Rat Brain Following Food Restriction
Kang Kyounglan,Huh Youngbuhm,Park Chan,Choue Ryo Won The Korean Nutrition Society 2005 Nutritional Sciences Vol.8 No.4
This study investigated the changes in the neuronal nitric oxide synthase (nNOS) and nicotinamide adenine dinucleotide phosphate-diaphorase (NADPH-d) activities during food restriction in the rat brain such as cerebral cortex, cerebellum, caudate pautamen and hypothalamus. The rats were placed on a restricted feeding schedule consisting of half the ad libitum quantity for 3 days and 1, 2, 4, 6 and 9 weeks, and a free feeding schedule for 4 weeks. The loss of body weight peaked after 1 week of food restriction and persisted during the entire 9-week period of food restriction. The dramatic weight change in the first week ($12\%$) and the reduction in weight changes thereafter suggest that major adaptation changes occur early and body maintenance occurs subsequently. In the hypothalamus, the optical densities of the NADPH-d and nNOS immunoreactivities were found to be significantly higher in the 1-week and lower in the 9-week food restricted group than in the ad libitum fed control rats. In contrast, in the cerebral cortex, the optical densities of the NADPH-d- and nNOS-positive neurons were not changed significantly during the period of food restriction. This study provides the morphological evidence showing that food restriction has a significant effect on the nitric oxide synthesizing system of the hypothalamus.
A Report of Health Status of University Staffs According to the Work Classification
Kang Kyounglan,Cho Miran,Kim Byung Sung,Choue Ryowon Korean Society of Community Nutrition 2005 Journal of community nutrition Vol.7 No.3
This study was conducted to evaluate the health status of staff by medical examination data according to the work classification as professional, office worker and laborer in K University in Seoul, Korea. Two thousand four hundred and eighty-four staff (men : 1154, female: 1330) from the university were studied for this report. The anthropometric (height, weight and BMI) and blood pressure (systolic, diastolic) and biochemical parameters (hemoglobin, glucose, cholesterol, AST, ALT) were measured. All groups were calculated using GLM multivariate analysis for three groups after adjustment for age. The average BMI was significantly higher in laborers than professionals and officers after adjustment for age. In blood pressure, especially in SBP, the significant difference was found in females according to the job classification. Blood glucose levels of female laborers were significantly higher than those of officers and professionals. The level of blood total cholesterol of male professionals was significantly higher than those of laborers. The level of blood total cholesterol of female laborers was significantly higher than officers or professionals. Importantly, significant differences were found in BMI, SBP, blood glucose level and cholesterol level of female staff after adjustment for age. These results showed that there were differences in health subjects of staff according to the work classification. This study would provide basic data to prepare the program of health promotion for the college staff according to work classification. Further research is required to discover factors influencing health promotion of staff in colleges.