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  • Children  (6)
  • Developing countries  (2)
  • Maple syrup urine disease  (2)
Materialart
Erscheinungszeitraum
  • 1
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 126 (1977), S. 199-202 
    ISSN: 1432-1076
    Schlagwort(e): Zinc ; Serum ; Normal values ; Children ; Infants ; Cord blood ; Adults
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Serum zinc concentrations in subjects of different ages were estimated by neutron activation analysis to obtain reliable reference values for the diagnosis of primary or secondary zinc deficiency during childhood. In these healthy individuals a small age-dependent variation of the mean values was found. Serum zinc concentrations were lower in cord blood (mean value: 880×10−9 g/ml) and in infants (mean value: 820×10−9 g/ml) than in adults (mean value 1178×10−9 g/ml). In comparison to these values, the serum zinc concentration in a patient with secondary zinc deficiency and 4 patients with acrodermatitis enteropathica was reduced to about 25% of normal.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    ISSN: 1432-1076
    Schlagwort(e): Selenium ; Intake ; Children ; Phenylketonuria
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract In 20 healthy infants and children, 5–20 months old, the Se intake was estimated by analysing food samples by instrumental neutron activation analysis. The intake was calculated by weighing the portions offered and actually consumed. The median Se content of the food amounted to 27 ng/g wet weight (gww) and median daily Se intake to 33.5 μg. The Se intake was not equally distributed over the day. About 50% of the daily Se intake was derived from the supper. The main Se sources (41%) for young children were cereal paps. Commercially, available meals (30 ng/g) contained less Se than home-made ones (50 ng/g). In nine dietetically treated patients with phenylketonuria the median Se intake amounted only to 6.9 μg/day corresponding to a mean Se content of the diet of 7.9 ng/g. The main Se source in the diet was vegetables (36.3%) and 20% derived from their protein supplements. The Se intake of young children, healthy or dietetically treated, cannot be calculated accurately from tables but must be estimated by measuring the Se content of the local food because cereals and vegetables-the main Se sources-exhibit great regional variations.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 139 (1982), S. 172-175 
    ISSN: 1432-1076
    Schlagwort(e): Maple syrup urine disease ; Acute phase of MSUD ; Insulin treatment
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract High and neurotoxic blood levels of leucine and its ketoanalogue develop in catabolic patients with maple syrup urine disease. The use of relatively high doses of insulin and additional glucose had a more pronounced effect on lowering leucine (and α-ketoisocaproate) blood levels than dietary elimination of leucine alone. This is demonstrated in 2 neonates after blood exchange transfusion and in one 4-months old patient suffering from febrile diarrhea.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 125 (1977), S. 81-88 
    ISSN: 1432-1076
    Schlagwort(e): Selenium ; Glutathione peroxidase ; Normal values ; Blood ; Infants ; Children ; Milk ; Nutrition
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The selenium concentration of serum is age-dependent. The median value at birth ( $$\tilde x$$ =50×10−9g/ml) amounts to half of the median value of adults ( $$\tilde x$$ =102×10−9g/ml). After a decrease in early infancy to $$\tilde x$$ =34×10−9g/ml it steadily increases to $$\tilde x$$ =58×10−9g/ml in the second half of the first year, to $$\tilde x$$ =82×10−9g/ml in 1–5 year old children, and to $$\tilde x$$ =92×10−9g/ml in school children. The activities of the selenium containing enzyme glutathione peroxidase of erythrocytes are also reduced in early infancy (x=7.2±0.36 U37/g Hb), whereas the enzyme activities of cord blood erythrocytes (x=8.72±0.76 U37/g Hb) are in the same range as those of older children or adults. The selenium content of some commercially available milk formulas for infants are lower than those of human and cow's milk.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 148 (1988), S. 159-163 
    ISSN: 1432-1076
    Schlagwort(e): Essential fatty acids ; Plasma ; Developing countries ; Africa ; Child nutrition
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The fatty acid status of an unselected group of 84 Congolese children was determined by estimating the fatty acid composition of the plasma phospholipid (PL) and cholesterolester (CE) fractions using capillary gas chromatography. In comparison with North American and European children a wide range of values and low mean percentages (related to the fatty acids of a chain length of 14–24 carbon atoms) were found for the following fatty acids (mean±SD): linoleic acid (LA) (PL: 17.19±3.85; CE: 40.13±7.72); arachidonic acid (AA) (PL: 6.60±2.28; CE 4.32±1.71); dihomo-gammalinolenic acid (DHLA) (PL: 1.80±0.68; CE 0.41±0.22). On average, ω3 fatty acids were higher than in reference groups, while similar values were found for the monoenoic and ω9 fatty acids. No sample contained eicosatrienoic acid, 20:3ω9 (ETA) which, dependent on analytical methods, may be difficult to separate from behenic acid (22:0). Changes in the relation between the two lipid fractions occurred when the LA content in CE was less than 35%. Also the correlation between LA and AA in CE, which was significant below 35% LA (r=0.84), changed with higher values for LA (r=0.01). These findings may indicate that alterations in fatty acid metabolism occur when LA values in CE — which are supposed to be directly related to the dietary intake of polyunsaturated fatty acids — fall below 35% of all fatty acids in this lipid fraction.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    ISSN: 1432-1076
    Schlagwort(e): Allergic asthma ; Children ; Phospholipids ; Fatty acids ; Glucocorticoids
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Fatty acid (FA) composition of plasma phospholipids and phospholipids extracted from peripheral mononuclear white blood cells (MNC) was investigated in 11 allergic asthmatic children (age 8.9±4.6 years), in 10 age-matched non-allergic healthy controls and in 14 allergic and non-allergic children with an acute attack of asthma, who had received prednisolone medication for 2–4 days. In allergic asthmatics eicosapentaenoic acid (20∶5n−3) was significantly elevated in both plasma and MNC. The relative amount of 20∶5n−3 in MNC as well as in plasma correlated positively with increasing levels of total serum IgE (P〈0.02). The pattern of the other FAs in plasma and of MNC phospholipids did not differ between allergic asthmatic and non-allergic control children. In children with an acute attack of asthma, who had been treated with glucocorticoids (2 mg prednisolone/kg body weight for 2–4 days), distinct changes of relative FA composition of phospholipids were restricted to plasma, where some very long chain FA (22∶4n−6, 22∶5n−6) were elevated. No significant changes in FA from MNC phospholipids could be observed after glucocorticoid treatment. These findings may indicate a possible role of 20∶5n−3, the precursor of “group 3” eicosanoids, in allergic asthmatic children.
    Materialart: Digitale Medien
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 138 (1982), S. 293-296 
    ISSN: 1432-1076
    Schlagwort(e): Maple syrup urine disease ; Blood exchange transfusion
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Two neonates with maple syrup urine disease were treated by exchange transfusion. Within 15 h blood leucine and KICA concentrations were lowered from 2.6 mM to 1.1 mM using 570 to 620 ml blood per kg body weight. The other branched-chain amino acid/keto acid pairs fell to normal. During exchange transfusion the patient's nitrogen balance seems to be negative. Further exchange transfusion was useless. More importantly the patient should be forced into an anabolic state by high caloric supply or insulin plus glucose treatment. More KICA than leucine was eliminated, however, KICA blood levels remained slightly higher than that of leucine indicating different leucine/KICA equilibria in extravascular compartments than in blood. In a given time interval exchange transfusion was more effective than peritoneal dialysis, probably due to a lack of an additional (peritoneal) membrane. Renal excretion of branched-chain amino and keto acids was very inefficient. The allegedly most toxic metabolite, KICA, had the lowest renal clearance of the branched-chain keto acids.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 139 (1982), S. 295-296 
    ISSN: 1432-1076
    Schlagwort(e): Selenium ; Hair ; Infants ; Children
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract Hair selenium content was estimated by instrumental neutron activation analysis in Libyan infants and children. There was no significant difference between the values of young infants from North and South Libya. The hair selenium content rapidly decreased from 1071 ±75 ng/g in newborns to 301±99 ng/g in 7–10 months old infants in North Libya and to 557±204 ng/g in South Libya. In North Libya the values of preschool children were 409±117 ng/g and those of school children 464±124 ng/g.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 145 (1986), S. 109-115 
    ISSN: 1432-1076
    Schlagwort(e): Essential fatty acids ; Delta-6-desaturase ; Nigeria ; Protein energy malnutrition ; Children
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The fatty acid (FA) composition of the main plasma lipids was analysed in eight well-nourished, generally healthy Nigerian children aged 14.1±7.2 months and in 17 malnourished children (8 marasmus, 9 kwashiorkor) aged 14.6±3.8 months within the first 2 days of admission at the Dept. of Child Health, University of Benin. In comparison to the control group, the malnourished children showed a marked decrease of polyunsaturated FA with low linoleic acid, mainly in sterolesters (STE), and severely reduced linoleic acid metabolites, including arachidonic acid, in all lipid fractions. ω-3-FA were not altered except for a reduction of docosapentaenoic and docosahexaenoic acids in phospholipids. Clearly increased values were found for saturated FA in STE and for the non-essential monoenoic FA in all lipid classes. This pattern indicates the presence of essential fatty acid deficiency in the malnourished children. There was no significant difference between marasmus and kwashiorkor. Eight malnourished children were followed up in the early phase of recovery during hospital treatment 14.0±3.1 days after obtaining the first sample. Linoleic acid had increased again in STE, but its metabolites were as low or even lower than before. An impaired activity of delta-6-desaturase, the rate limiting enzyme of linoleic acid metabolism, in suggested by elevated substrate-product-ratios of this enzyme in untreated children with protein energy malnutrition and in the early phase of recovery, which may be due to low insulin levels, protein and zinc deficiency. The trientetraen-ratio (20∶3ω9/20∶4ω6) thus is not a reliable indicator of essential FA status in protein-energy malnutrition.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 148 (1988), S. 155-158 
    ISSN: 1432-1076
    Schlagwort(e): Plasma proteins ; Immunoglobulins ; Circulating immune complexes ; Anthropometry ; Developing countries
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract The nutritional status of an unselected group of 111 children from the village of Bouansa, People's Republic of the Congo, was studied. Comprehensive clinical examinations, anthropometrical measurements and analysis of albumin, prealbumin, ferritin, C-reactive protein (CRP), IgA, IgG, IgM, IgE, IgG- and IgM-circulating immune complexes (CIC) were carried out. The results show, by anthropometrical classification, a high prevalence of moderate malnutrition. Low levels of plasma proteins and high levels of immunoglobulins and CIC were found. No correlation between anthropometrical classification and plasma proteins was established. Children with increased levels of CRP showed low prealbumin values and increased levels of ferritin. Patterns of immunoglobulins and CIC were close to those found in other studies in tropical countries. To evaluate the anthropometrical and biochemical findings it is necessary to take into consideration the apparently healthy appearance of the children, which shows the degree of adaptation to the limited availability of food and the high rate of acute and chronic infections.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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