| 1. |
- Astrup, Arne, et al.
(författare)
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In memory of Brittmarie Sandström, 1945-2002
- 2003
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - : SNF Swedish Nutrition Foundation. - 1102-6480 .- 1651-2359. ; 47:1, s. 3-3
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 2. |
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| 3. |
- Barany, E, et al.
(författare)
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Mercury and selenium in whole blood and serum in relation to fish consumption and amalgam fillings in adolescents
- 2003
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Ingår i: Journal of Trace Elements in Medicine and Biology. - 1878-3252 .- 0946-672X. ; 17:3, s. 165-170
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Tidskriftsartikel (refereegranskat)abstract
- Mercury and selenium in whole blood and serum of 245 17-year old Swedish adolescents were analysed. The relationships between these elements' concentrations and the consumption of fish as well as the number of dental amalgam fillings were studied. The geometric means (GM) of the mercury concentrations were 1.1 mug/L in blood and 0.43 mug/L in serum. The mean selenium concentration in blood was 110 mug/L and the GM of the serum selenium concentration 110 mug/L. Fish species with dietary restrictions due to elevated mercury Levels (i.e. pike, perch, pikeperch, burbot, eel and halibut) were consumed on average 0.7 times/month and fish species without such restrictions 4.1 times/month. Despite this comparatively Low fish consumption, the adolescents' blood mercury concentrations were positively correlated with fish consumption. Of the adolescents, 39% had amalgam fillings (mean 2 +/- 1.5). Serum mercury was influenced by the number of amalgam fittings, by fish consumption, blood and serum levels of selenium and the residential area. Blood and serum selenium concentrations were not influenced by fish consumption, but were positively associated with the serum mercury concentration.
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| 4. |
- Barany, E, et al.
(författare)
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Relationships between trace element concentrations in human blood and serum
- 2002
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Ingår i: Toxicology Letters. - 1879-3169 .- 0378-4274. ; 134:1-3, s. 177-184
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Tidskriftsartikel (refereegranskat)abstract
- Trace element interactions can affect the absorption, metabolism, or effects of elements. Also, different elements may derive from the same source. Associations in biological media between element concentrations may indicate such phenomena. A large number of correlations were found between 13 trace elements (Co, Cu, Zn, Se, Rb, Rh, Pd, Cd, W, Pt, Hg, Tl, and Pb) in human blood and/or serum, as investigated in 372 Swedish adolescents. Notably, serum Se correlated with blood Ph and blood Hg and Cu and Zn were correlated to each other in both blood and serum. The elements Pt, Pd and Rh, spread in the environment through use of catalytic converters in cars, were closely correlated in both blood and serum. Apart from the correlations with a probable biological or exposure-related explanation, several other correlations, of yet unknown importance and origin, were found.
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| 5. |
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| 6. |
- Barany, E, et al.
(författare)
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Trace element levels in whole blood and serum from Swedish adolescents
- 2002
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Ingår i: Science of the Total Environment. - 1879-1026 .- 0048-9697. ; 286:1-3, s. 129-141
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Tidskriftsartikel (refereegranskat)abstract
- Blood and serum samples from 372 15-year-old adolescents were collected in two cities in Sweden and analyzed by inductively coupled plasma mass spectrometry (ICP-MS). The objective was to (1) determine the levels of 13 elements in blood and serum from the teenagers; and (2) for each element, investigate the correlation between the concentrations in blood and serum. The concentrations in blood and serum were generally in line with that usually reported for the essential elements Co, Cu, Zn and Se, and generally low for the 'non-essential' elements Cd, Hg, Pb. The median concentrations were in blood and serum, respectively: of Co 031 and 0.48 mug/l, Cu 0.92 and 1.0 mg/l, Zn 6.1 and 0.99 mg/l, Se 110 and 100 mug/l, Rb 2.8 and 0.24 mg/l, Hg 1.1 and 0.44 mug/l, Pb 16 and 0.33 mug/l. The median concentration of W in blood was < 0.2 mug/l (below the detection limit) and in serum 0.087 mug/l. The median concentrations of Cd, Rh, Pd, Pt and TI were below the detection limits. Statistically significant correlations were found between the concentrations in blood and serum for Co, Cu, Zn, Se, Rb, W, Hg and Pb. The levels presented in this study constitute baseline levels or levels generally not exceeded in adolescents for 13 elements, including essential, ubiquitous toxic, and rare elements.
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| 7. |
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| 8. |
- Barany, E, et al.
(författare)
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Trace elements in blood and serum of Swedish adolescents: Relation to gender, age, residential area, and socioeconomic status
- 2002
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Ingår i: Environmental Research. - : Elsevier BV. - 1096-0953 .- 0013-9351. ; 89:1, s. 72-84
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Tidskriftsartikel (refereegranskat)abstract
- The influence of gender, age, residential area, and socioeconomic status on the blood and serum levels of 13 trace elements was studied in boys and girls living in two Swedish cities with different socioeconomic and environmental characters. The same groups of adolescents were sampled twice, at ages 15 (n = 372) and 17 (n = 294) years. All the investigated factors were shown to be of importance. Age was important for most elements; e.g., copper levels in both blood and serum increased in girls, and selenium increased in serum from both genders. Lead decreased approximately 10%, in blood from the first to the second sampling, and cadmium increased in blood, however not in nonsmokers. The age factor may also reflect temporal changes in environmental exposure, especially for nonessential elements. Girls had higher levels of cobalt and copper, while lead in blood was higher in boys. Smoking girls had higher copper levels than nonsmoking girls. Residential area influenced all elements. The teenagers with university-educated mothers had higher levels of cadmium in blood than those with only primary school-educated mothers.
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| 9. |
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| 10. |
- Bratteby, L-E, et al.
(författare)
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Physical activity, energy expenditure and their correlates in two cohorts of Swedish subjects between adolescence and early adulthood
- 2005
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Ingår i: European Journal of Clinical Nutrition. - : Springer Science and Business Media LLC. - 0954-3007 .- 1476-5640. ; 59, s. 1324-1334
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To assess physical activity and energy expenditure and to identify their correlates during adolescence and early adulthood. DESIGN: In a cohort study, total energy expenditure (TEE) and physical activity level (PAL) were assessed at 15 and 21 y from a 7-day activity diary and predicted BMR. The influences on TEE and PAL of body size, gender, sexual maturity, physical activity habits, sitting time, region, social conditions, employment, food habits, smoking and alcohol intake were examined in multivariate analyses.Subjects:71 male and 89 female subjects, living in two socioeconomically different regions of Sweden, a university region and an industrial region. SETTING: The university city of Uppsala and the industrial town of Trollhättan. RESULTS: At both 15 and 21 y, PAL and TEE were high, with gender, sitting time and physical activity habits as main correlates. At age 21 y, employment and the mother's educational level also appeared as significant correlates. The relations between the main variables and their correlates were more complex than at age 15 y, and the sitting time was reduced and the activity habits were changed. CONCLUSIONS: A reduction of daily sitting appears to be a major reason why high levels of physical activity and energy expenditure were maintained from 15 to 21 y of age in spite of changed and less frequent activity habits during this interval.
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| 11. |
- Bratteby, L E, et al.
(författare)
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Whole-body mineral measurements in Swedish adolescents at 17 years compared to 15 years of age.
- 2002
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Ingår i: Acta Paediatrica. - 0803-5253 .- 1651-2227. ; 91:10, s. 1031-8
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Tidskriftsartikel (refereegranskat)abstract
- AIM: To provide reference data for bone mineral variables in 15- and 17-y-old adolescents and to analyse the relationships between these variables and measures of bone and body size, gender, puberty, growth, various lifestyle and environmental factors and socioeconomic background.METHODS: In the same 321 randomly selected adolescents (147 boys and 174 girls) living in two different regions of Sweden, the total bone mineral content (TBMC), bone area (BA) and total bone mineral density (TBMD) were assessed by dual-energy X-ray absorptiometry at ages 15 and 17 y. The effects of bone and body size, gender, growth, sexual maturity, physical activity, region of domicile, social conditions, food habits, smoking and alcohol intake on TBMC and TBMD were examined in multivariate analyses.RESULTS: In the 15-y-old adolescents, BA, height, gender, physical activity, maturity and weight explained 91% and 48%, of the variance in TBMC and TBMD, respectively. In similar analyses in the 17-y-olds, the corresponding figures were 92% and 62%, respectively, when BA, height, growth, physical activity, gender and region emerged as significant in the model. In all these analyses, BA explained most of the variance in TBMC and TBMD. No significant reduction of variance was found when different measures of social conditions, smoking, food habits, alcohol or dietary intakes of energy, calcium or vitamin D were included in the models. The reason why region of domicile had a significant impact on TBMC in the 17-y-olds is not known. The fact that the normal fluoride concentration in drinking water (1.1 mg/L) is 10 times higher in the region where TBMC was higher than in the other region is an interesting observation.CONCLUSION: Almost 90% of the variance in TBMC and 50% of that in TBMD was explained by measures of bone and body size and only a few percent by gender, physical activity, Tanner stage, growth and region of domicile.
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| 12. |
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| 13. |
- Hellerud, C, et al.
(författare)
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Glycerol kinase deficiency : follow-up during 20 years, genetics, biochemistry and prognosis.
- 2004
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Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 93:7, s. 911-21
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Tidskriftsartikel (refereegranskat)abstract
- Departments of Clinical Chemistry and Transfusion Medicine, Sahlgrenska University Hospital, Göteborg University, Gothenburg, Sweden. Christina.Hellerud@clinchem.gu.seAIM: To follow two children with isolated glycerol kinase deficiency (GKD) with severe symptoms into adulthood. METHODS: The patients were followed during approximately 20 y and interviewed about symptoms, diet and physical activity. Fasting provocations, bicycle ergometer tests, dietary registrations, enzyme and mutation analysis were performed by standard protocols. RESULTS: The activity of glycerol kinase (GK) in fibroblasts was <10% of reference. One case had a deletion of exon 17, the other a mutation in exon 7 of the GK gene (601 A-->G). Both mothers were heterozygotes. Two maternal male cousins in one of the families were hemizygotes without symptoms. Tests performed in childhood documented pronounced sensitivity to fasting and physical exercise, whereas such tests at 23 and 31 y of age were essentially normal but with pronounced ketonaemia. After puberty, the boys had no hypoglycaemic symptoms and now report no problems with their condition; thus, their phenotype has changed over time. CONCLUSION: The greater importance of glycerol as a gluconeogenetic substrate in children than in adults may explain the episodes in young patients with GKD, often elicited by catabolic stress. With meals at frequent intervals, access to glucose and avoidance of strenuous sports, the prognosis is good for a normal adult life of a young child with isolated GKD and symptoms of hypoglycaemia.
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| 14. |
- Isaksson, Björn, et al.
(författare)
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In memory of Arvid Wretlind 1919-2002
- 2002
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 46:3, s. 117-117
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 15. |
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| 16. |
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| 17. |
- Ribom, Eva, et al.
(författare)
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Muscle strength correlates with total body bone mineral density in young women but not in men
- 2004
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Ingår i: Scandinavian Journal of Medicine and Science in Sports. - : Wiley. - 0905-7188 .- 1600-0838. ; 14, s. 24-
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Osteoporosis is a growing health problem. One of the proposed reasons for this is a more sedentary lifestyle. The aim of this study was to investigate the associations between muscle strength and total body bone mineral density (TBMD) in young adults at expected peak bone mass. METHODS: Sixty-four women and 61 men (total 125) 21 years of age were included. Handgrip strength, isokinetic knee-flexion and -extension muscle strength, TBMD, and body composition were measured. RESULTS: Univariate regression analyses showed that knee flexion and extension explained almost 30% of the variation in TBMD in women, whereas handgrip strength was not associated with TBMD. In men, no correlation between any measures of muscle strength and TBMD was evident. Stepwise regression analysis showed that knee-flexion and -extension muscle strength in women were associated with TBMD, R2=0.27. In men, lean body mass, fat mass, weight, and height were predictors for TBMD, R2=0.43, whereas muscle strength did not affect the prediction of TBMD. CONCLUSIONS: Muscle strength at weight-bearing sites is related to TBMD in women, whereas body composition is related to TBMD in men. The association of lower limb strength on TBMD only in young women indicates a gender difference.
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| 18. |
- Samuelson, Gösta, 1930-, et al.
(författare)
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A follow-up study of serum ferritin and transferrin receptor concentrations in Swedish adolescents at age 17 age 15.
- 2000
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Ingår i: Acta Paediatrica. - : Wiley-Blackwell. - 0803-5253 .- 1651-2227. ; 89:10, s. 1162-8
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Tidskriftsartikel (refereegranskat)abstract
- UNLABELLED: Serum ferritin and serum transferrin receptor concentrations, growth and food habits were studied in healthy Swedish boys (n = 103) and girls (n = 124) at the age of 17 y and compared with those in the same adolescents at age 15. Between these ages, serum transferrin receptor increased significantly in both boys and girls. Serum ferritin increased significantly in boys but not in girls. The transferrin receptor/ferritin ratio increased significantly in girls but not in boys, indicating insufficient iron stores in the 17-y-old girls in relation to erythropoiesis and iron needs. Between 15 and 17 y the boys' frequency of consumption of milk and bread decreased, while they more often consumed pasta, cheese and coffee. The girls decreased their frequency intake of fat products, milk and meat. The frequency of meat consumption emerged as the single significant predictor for serum ferritin <12 microg/L in girls, but not in boys. The median daily iron intake, determined in a subsample, decreased in boys from 18.7 to 13.6 mg and in girls from 14.1 to 8.8 mg, and the decrease was to a large extent due to cessation of iron fortification of flour.CONCLUSIONS: The results indicate insufficient iron stores in the 17-y-old girls in relation to erythropoiesis and iron needs, but more favourable iron stores in the boys. The absence of a significant decrease in mean serum ferritin despite rapid growth suggests that the earlier iron fortification of flour only marginally contributed to the iron status of Swedish adolescents of this age group.
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| 19. |
- Samuelson, Gösta, 1930-
(författare)
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Acrylamide in food : an update
- 2002
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 46:4, s. 157-157
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 20. |
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| 21. |
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| 22. |
- Samuelson, Gösta, 1930-, et al.
(författare)
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Dietary fat intake in healthy adolescents : inverse relationships between the estimated intake of saturated fatty acids and serum cholesterol.
- 2001
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Ingår i: British Journal of Nutrition. - 0007-1145 .- 1475-2662. ; 85:3, s. 333-41
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Tidskriftsartikel (refereegranskat)abstract
- The objective of the present study was to describe the intake of dietary fatty acids among healthy 15-year-old boys and girls and to relate the intake of specific fatty acids and the fatty acid composition of the serum cholesterol esters to serum lipid, apolipoprotein (Apo) and insulin concentrations respectively. Fifty-two girls and forty-two boys were randomly selected from the official population register. Unexpectedly, significant inverse associations were found between the dietary content of saturated fatty acids with a chain length of four to fifteen C atoms, mainly derived from milk fat, as well as the corresponding fatty acids in the serum cholesterol esters, on the one hand and the serum concentrations of cholesterol and ApoB on the other. The estimated dietary intake of 4:0-10:0, 12:0 and 14:0 respectively, were all significantly inversely related to the serum cholesterol (r -0.32, r -0.31, r -0.30, all and ApoB (r -0.42, r -0.42, and r -0.40, all concentrations in girls and 12:0 to the ApoB concentration (r -0.55, in boys. The proportions of 12:0 and 15:0 in the serum cholesterol esters were negatively correlated with the serum cholesterol concentrations in both girls (r -0.34, r -0.32, and boys (r -0.53, r -0.32, and with the ApoB concentrations among boys (r -0.61, r -0.43, It is conceivable that milk fat contains or is associated with some component in the diet, or some other characteristics of the food intake, which counterbalances the expected positive relationships between saturated fat intake and lipid levels.
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| 23. |
- Samuelson, Gösta, 1930-
(författare)
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Dietary habits and nutritional status in adolescents over Europe. An overview of current studies in the Nordic countries.
- 2000
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Ingår i: European Journal of Clinical Nutrition. - 0954-3007 .- 1476-5640. ; 54:Suppl 1, s. S21-8
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To give an overview of the dietary habits among adolescents in the Nordic countries and to present results from studies showing the relationship between dietary habits and other lifestyle factors, nutritional status and socio-economic conditions.DESIGN: A number of nutritional studies among adolescents performed during recent decades using recalls, dietary records and food frequency questionnaire.SETTING: Denmark, Finland, Norway and Sweden.SUBJECTS: Adolescents aged 13-18 y.RESULTS: Food habits are characterized by an irregular meal pattern; many adolescents skip breakfast and also the school lunch, whereas most of them have dinner. However, snacking and light meals are very common, contributing 25-35% of the daily energy intake. Smoking is linked to their dietary habits as well as socio-economic conditions. Dietary intakes of vitamins and minerals are adequate for normal health and growth. Dietary calcium intake is high, whereas the intake of fibre, vitamin D, zinc and selenium and, in girls, iron is below the Nordic recommendations. Relatively low prevalence figures of iron deficiency were found. Many studies show a decrease over time in physical activity. The time spent in sedentary activities, such as television and video watching and computer games has increased during recent decades.CONCLUSION: Overweight and obesity are becoming more prevalent in all the Nordic countries, even though the prevalence figures are far below those in the USA. On the other hand, dieting girls are common, which might be a factor behind their irregular meal pattern and food choice. In a perspective, overweight and diseases attributable to obesity will be an immense challenge in the coming decades for both the individuals and the society as well.
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| 24. |
- Samuelson, Gösta, 1930-
(författare)
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Folic acid : a key vitamin in nutrition
- 2003
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 47:1, s. 3-
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 25. |
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| 26. |
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| 27. |
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| 28. |
- Samuelson, Gösta, 1930-
(författare)
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IT in nutrition and medicine
- 2000
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 44:2, s. 45-
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Tidskriftsartikel (refereegranskat)
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| 29. |
- Samuelson, Gösta, 1930-, et al.
(författare)
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Mat vid diabetes
- 2008. - 2
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Ingår i: Barn- och ungdomsdiabetes. - Lund : Studentlitteratur. - 9789144049298 ; , s. 93-101
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 30. |
- Samuelson, Gösta, 1930-
(författare)
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Meal patterns impact and obesity
- 2004
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 48:3, s. 107-107
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 31. |
- Samuelson, Gösta, 1930-
(författare)
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Nutritional inequality : still a global problem
- 2001
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 45:3, s. 113-
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 32. |
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| 33. |
- Samuelson, Gösta, 1930-
(författare)
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Pre-operative nutritional care - New regimens
- 2000
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 44:1, s. 1-2
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Tidskriftsartikel (refereegranskat)
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| 34. |
- Samuelson, Gösta, 1930-
(författare)
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Recension: Livsmedelstabell
- 2002
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 3, s. 150-
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Recension (övrigt vetenskapligt/konstnärligt)
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| 35. |
- Samuelson, Gösta, 1930-, et al.
(författare)
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Serum ferritin and transferrin receptor concentrations during the transition from adolescence to adulthood in a healthy Swedish population.
- 2003
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Ingår i: Acta Paediatrica. - 0803-5253 .- 1651-2227. ; 92:1, s. 5-11
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Tidskriftsartikel (refereegranskat)abstract
- AIM: As part of a longitudinal nutrition study of adolescents, changes in serum ferritin (s-Ft), serum transferrin receptors (s-TfR) and the TfR/Ft ratio from 15 to 21 y of age were studied in randomly selected Swedish adolescents.METHODS: Blood samples from 60 males and 66 females were drawn at 15, 17 and 21 y of age.RESULTS: In males, median s-Ft increased significantly from 33 microg l(-1) at 15 y to 96 microg l(-1) at 21 y, and in females, after a non-significant decrease at 17 y, from 27 at 15 y to 34 microg l(-1) at 21 y. Between 15 and 17 y, s-TfR increased significantly, in males from 5.9 to 7.7 microg l(-1), and in females from 5.2 to 7.6 microg l(-1), whereas s-TfR decreased significantly in both genders between 17 and 21 y. The log (TfR/Ft) ratio did not change in males between 15 and 17 y, but decreased significantly from 2.2 +/- 0.3 to 1.8 +/- 0.3 by the age of 21 y. In females, the TfR/Ft ratio increased significantly between 15 and 17 y, whereas a significant decrease was found by the age of 21 y. S-Ft <12 microg l(-1) at 15, 17 and 21 y was 3, 2 and 2% in males, and in females 18, 26 and 21%, respectively.CONCLUSION: This study shows an increase in s-Ft and a decline in s-TfR in males, indicating increased iron stores. In females, s-Ft did not increase significantly, whereas s-TfR and the TfR/Ft ratio decreased between 17 and 21 y, indicating that cellular iron needs were met.
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| 36. |
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| 37. |
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| 38. |
- Samuelson, Gösta, 1930-
(författare)
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Wine, diet and healthy lifestyle
- 2002
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Ingår i: Scandinavian Journal of Nutrition/Næringsforskning. - 1102-6480 .- 1651-2359. ; 46:3, s. 113-115
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
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| 39. |
- Samuelson, Gösta, 1930-
(författare)
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Övervikt och fetma hos barn
- 2007
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Ingår i: Barnbladet. - 0349-1994. ; 32:1, s. 8-10
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 40. |
- Von Post-Skagegård, M, et al.
(författare)
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Changes in food habits in healthy Swedish adolescents during the transition from adolescence to adulthood
- 2002
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Ingår i: European Journal of Clinical Nutrition. - : Springer Science and Business Media LLC. - 0954-3007 .- 1476-5640. ; 56:6, s. 532-8
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To investigate the change in food habits in Swedish adolescents between 15 and 21 y of age with reference to age, sex, region and socioeconomic background. DESIGN: A longitudinal study from 1993 to 1999. SETTING: Two different regions in Sweden, the university city of Uppsala and the industrial town of Trollhättan. SUBJECTS: On three different occasions, 1993, 1995 and 1999, 208 adolescents, 96 males and 112 females, were studied. METHODS: A food frequency questionnaire containing 29 different food groups was used. The questionnaire also contained questions about food habits and amounts of some food items and socioeconomic conditions of the participants and their families. RESULTS: At 17 and 21 y of age, the adolescents consumed significantly more often pasta, vegetables, coffee and tea compared to age 15, while the frequency consumption of fat spread, milk, bread, potatoes, carrots and buns and biscuits decreased. The changes between 15 and 17 were smaller than between age 17 and 21. At age 21, the males decreased their intake of fruit, while the females decreased their intake of meat. No-meat consumers among females increased from 2 to 13%. Higher educational level of the mothers of the adolescents was associated with more frequent consumption of vegetables and pasta between ages 17 and 21. Milk consumption decreased significantly in both sexes. Breakfast habits did not change: 90% had breakfast five times/week or more. CONCLUSIONS: Food habits change significantly during adolescence along with lifestyle changes. Therefore, health promotion during adolescence ought to be more supported by the society.
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