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Sökning: WFRF:(Schneede Jörn) > Karolinska Institutet

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1.
  • de Batlle, J., et al. (författare)
  • Dietary Folate Intake and Breast Cancer Risk: European Prospective Investigation Into Cancer and Nutrition
  • 2015
  • Ingår i: Journal of the National Cancer Institute. - : Oxford University Press (OUP). - 1460-2105 .- 0027-8874. ; 107:1, s. 367-367
  • Tidskriftsartikel (refereegranskat)abstract
    • There is limited evidence on the association between dietary folate intake and the risk of breast cancer (BC) by hormone receptor expression in the tumors. We investigated the relationship between dietary folate and BC risk using data from the European Prospective Investigation into Cancer and Nutrition (EPIC). A total of 367993 women age 35 to 70 years were recruited in 10 European countries. During a median follow-up of 11.5 years, 11575 women with BC were identified. Dietary folate intake was estimated from country-specific dietary questionnaires. Cox proportional hazards regression models were used to quantify the association between dietary variables and BC risk. BC tumors were classified by receptor status. Subgroup analyses were performed by menopausal status and alcohol intake. Intake of other B vitamins was considered. All statistical tests were two-sided. A borderline inverse association was observed between dietary folate and BC risk (hazard ratio comparing top vs bottom quintile [HRQ5-Q1] = 0.92, 95% CI = 0.83 to 1.01, P (trend) = .037). In premenopausal women, we observed a statistically significant trend towards lower risk in estrogen receptor-negative BC (HRQ5-Q1 = 0.66, 95% CI = 0.45 to 0.96, P (trend) = .042) and progesterone receptor-negative BC (HRQ5-Q1 = 0.70, 95% CI = 0.51 to 0.97, P (trend) = .021). No associations were found in postmenopausal women. A 14% reduction in BC risk was observed when comparing the highest with the lowest dietary folate tertiles in women having a high (> 12 alcoholic drinks/week) alcohol intake (HRT3-T1 = 0.86, 95% CI = 0.75 to 0.98, P (interaction) = .035). Higher dietary folate intake may be associated with a lower risk of sex hormone receptor-negative BC in premenopausal women.
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2.
  • Egorova, Olga, et al. (författare)
  • Maternal blood folate status during early pregnancy and occurrence of autism spectrum disorder in offspring: a study of 62 serum biomarkers
  • 2020
  • Ingår i: Molecular Autism. - : BioMed Central. - 2040-2392. ; 11
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Autism spectrum disorder (ASD) evolves from an interplay between genetic and environmental factors during prenatal development. Since identifying maternal biomarkers associated with ASD risk in offspring during early pregnancy might result in new strategies for intervention, we investigated maternal metabolic biomarkers in relation to occurrence of ASD in offspring using both univariate logistic regression and multivariate network analysis.Methods: Serum samples from 100 women with an offspring diagnosed with ASD and 100 matched control women with typically developing offspring were collected at week 14 of pregnancy. Concentrations of 62 metabolic biomarkers were determined, including amino acids, vitamins (A, B, D, E, and K), and biomarkers related to folate (vitamin B9) metabolism, lifestyle factors, as well as C-reactive protein (CRP), the kynurenine-tryptophan ratio (KTR), and neopterin as markers of inflammation and immune activation.Results: We found weak evidence for a positive association between higher maternal serum concentrations of folate and increased occurrence of ASD (OR per 1 SD increase: 1.70, 95% CI 1.22–2.37, FDR adjusted P = 0.07). Multivariate network analysis confirmed expected internal biochemical relations between the biomarkers. Neither inflammation markers nor vitamin D3 levels, all hypothesized to be involved in ASD etiology, displayed associations with ASD occurrence in the offspring.Conclusions: Our findings suggest that high maternal serum folate status during early pregnancy may be associated with the occurrence of ASD in offspring. No inference about physiological mechanisms behind this observation can be made at the present time because blood folate levels may have complex relations with nutritional intake, the cellular folate status and status of other B-vitamins. Therefore, further investigations, which may clarify the potential role and mechanisms of maternal blood folate status in ASD risk and the interplay with other potential risk factors, in larger materials are warranted.
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3.
  • Gustafsson, Maria, et al. (författare)
  • Reduction in the use of potentially inappropriate drugs among old people living in geriatric care units between 2007 and 2013
  • 2015
  • Ingår i: European Journal of Clinical Pharmacology. - : Springer Science and Business Media LLC. - 0031-6970 .- 1432-1041. ; 71:4, s. 507-515
  • Tidskriftsartikel (refereegranskat)abstract
    • PURPOSE: The aims of this study were to investigate trends in the prevalence of potentially inappropriate drug use among old people living in geriatric care units in the county of Västerbotten between 2007 and 2013 using six national quality indicators and to assess the impact of medication reviews on those quality indicators.METHODS: Data were collected concerning potentially inappropriate drug use, function in the activities of daily living (ADL) and cognitive function, using the Multi-Dimensional Dementia Assessment Scale (MDDAS). A comparison was made between the years 2007 and 2013, comprising 2772 and 1902 people, respectively, living in geriatric care in the county of Västerbotten, Sweden. We conducted a parallel investigation of a separate corresponding population in Västerbotten County from 2012, where potentially inappropriate drug use was measured before and after 895 medication reviews which involved a clinical pharmacist.RESULTS: After controlling for age, sex, ADL and cognitive impairment, there was a significant improvement in five out of six quality indicators between 2007 and 2013. While 44 % of the people were exposed to one or more potentially inappropriate medications in 2007, this number had declined to 26 % by 2013. In the separate population from 2012, the frequency of potentially inappropriate drug use was significantly reduced amongst the people who had a medication review performed.CONCLUSION: The extent of potentially inappropriate drug use declined between 2007 and 2013 according to the quality indicators used. Medication reviews involving clinical pharmacists might be an important factor in reducing potentially inappropriate drug use and improving drug treatment among old people.
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4.
  • Hagnelius, Nils-Olof, 1953-, et al. (författare)
  • Blood concentrations of homocysteine and methylmalonic acid among demented and non-demented Swedish elderly with and without home care services and vitamin B(12) prescriptions
  • 2012
  • Ingår i: Dementia and Geriatric Cognitive Disorders Extra. - Basel, Switzerland : S. Karger. - 1664-5464. ; 2:1, s. 387-399
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and Aims: Total plasma homocysteine (tHcy) has been suggested as a risk factor of dementia. Our aim was to investigate potential differences in tHcy status in relation to the prescription of vitamin B(12) and dementia diagnosis. We examined whether vitamin B(12) prescriptions, a family history of dementia, or the need for home care service might be associated with tHcy values.Methods: A cross-sectional monocenter study comprising 926 consecutive subjects attending our Memory Care Unit was conducted.Results: Demented subjects being prescribed vitamin B(12) had higher serum vitamin B(12) (p = 0.025) but also higher tHcy (p < 0.001) and serum methylmalonate (p = 0.032), and lower serum folate (p < 0.001) than those who did not receive vitamin B(12) prescriptions. tHcy levels were significantly higher in non-demented subjects receiving home care service (p = 0.007). This group also had lower serum albumin (dementia: p < 0.001; non-dementia: p = 0.004). There was no difference in renal function (estimated glomerular filtration rate) in demented or non-demented subjects with or without vitamin B(12) prescriptions (dementia with/without vitamin B(12) prescription: p = 0.561; non-dementia with/without vitamin B(12) prescription: p = 0.710).Conclusion: Despite vitamin B(12) prescriptions, demented subjects had higher tHcy and methylmalonate values. The elevated metabolite values could not be explained by differences in renal function. Thus, elderly subjects on vitamin B(12) prescription appear to have unmet nutritional needs.
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5.
  • Park, Jin Young, et al. (författare)
  • Dietary folate intake and pancreatic cancer risk : Results from the European prospective investigation into cancer and nutrition
  • 2019
  • Ingår i: International Journal of Cancer. - : John Wiley & Sons. - 0020-7136 .- 1097-0215. ; 144:7, s. 1511-1521
  • Tidskriftsartikel (refereegranskat)abstract
    • Pancreatic cancer (PC) has an exceptionally low survival rate and primary prevention strategies are limited. Folate plays an important role in one-carbon metabolism and has been associated with the risk of several cancers, but not consistently with PC risk. We aimed to investigate the association between dietary folate intake and PC risk, using the standardised folate database across 10 European countries. A total of 477,206 participants were followed up for 11 years, during which 865 incident primary PC cases were recorded. Folate intake was energy-adjusted using the residual method. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazards models. In multivariable analyses stratified by age, sex, study centre and adjusted for energy intake, smoking status, BMI, educational level, diabetes status, supplement use and dietary fibre intake, we found no significant association between folate intake and PC risk: the HR of PC risk for those in the highest quartile of folate intake (>= 353 mu g/day) compared to the lowest (<241 mu g/day) was 0.81 (95% CI: 0.51, 1.31; p(trend) = 0.38). In current smokers, a positive trend was observed in PC risk across folate quartiles [HR = 4.42 (95% CI: 1.05, 18.62) for >= 353 mu g/day vs. <241 mu g/day, p(trend) = 0.01]. Nonetheless, there was no significant interaction between smoking and dietary folate intake (p(interaction) = 0.99). We found no association between dietary folate intake and PC risk in this large European study.
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