| 1. |
- Flodmark, Carl-Erik, et al.
(författare)
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Red cell sodium-potassium adenosine triphosphatase sites and intracellular sodium increased in obese school children
- 1992
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Ingår i: Mineral and Electrolyte Metabolism. - 1423-016X. ; 18:1, s. 6-8
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Tidskriftsartikel (refereegranskat)abstract
- Principally to ascertain whether mineral metabolism is involved in weight regulation, the 40 most obese of 1,774 children, aged 10-11 years, screened for obesity were compared with 46 age-matched controls. The obese children had more 3H-Ouabain erythrocyte binding sites (p = 0.04), higher intracellular sodium (p = 0.04), and lower plasma sodium (p = 0.002). After exclusion of the non-Scandinavians, the p values were p = 0.02, p = 0.03, and p = 0.03, respectively. Analysis of variance also showed the differences to be more dependent on obesity than on gender or nationality. It is concluded that obese children have more 3H-Ouabain erythrocyte binding sites indicating an increase of the sodium-potassium adenosine triphosphatase activity. The increase of intracellular sodium may increase the risk of future hypertension.
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| 2. |
- Löfberg, H, et al.
(författare)
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The cerebrospinal fluid and plasma concentrations of gamma-trace and beta2-microglobulin at various ages and in neurological disorders
- 1980
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Ingår i: Journal of Neurology. - 0340-5354. ; 223:3, s. 70-159
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Tidskriftsartikel (refereegranskat)abstract
- The concentrations of gamma-trace and beta2-microglobulin in cerebrospinal fluid (CSF) and plasma were determined in 64 individuals of various ages without signs of organic disorder in the central nervous system (CNS). A strong connection was found between the CSF level of gamma-trace and the age of the individual, with the CSF level of newborns being 3--4 times that of adults. A similar, but less marked, connection was found for the CSF level of beta2-microglobulin and the age of the individual. The plasma levels of the two proteins also varied with the age of the individual, but the variations were not as great as those of the CSF levels. The results strongly emphasize the necessity of using age-matched reference values when CSF and plasma levels of the proteins are to be evaluated in different groups of patients. Thirteen children and 98 adults with various neurological disorders were also examined. Significantly increased CSF levels of gamma-trace and beta2-microglobulin as well as increased plasma concentration of gamma-trace and CSF/plasma gradient of beta2-microglobulin were found in infectious disorders. Increased gamma-trace concentration in plasma and beta2-microglobulin concentration in CSF were seen in cerebrovascular disorders. The mechanisms which regulate the turnover of proteins in CSF are discussed.
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