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- Brynhildsen, Jan, et al.
(författare)
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The importance of maternal BMI on infants birth weight in four BMI groups for the period 1978-2001
- 2009
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Ingår i: ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA. - : Wiley. - 0001-6349 .- 1600-0412. ; 88:4, s. 391-396
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To study whether increased maternal weight and other factors of importance is associated with higher birth weights of the children over a period of almost 25 years. Design. Retrospective cohort study. Setting. Delivery wards in southeast Sweden. Sample. A total of 4,330 delivered women and their children from the years 1978, 1986, 1992, 1997, and 2001. Methods. Analysis of covariance was used to evaluate the importance of the mothers body mass index (BMI) on the childrens birth weights during the study years and smoking, parity, employment, gestational age, and the age of the mothers were adjusted for. Main outcome measures. Weight of the offspring in relation to maternal BMI and possible confounders such as smoking, parity, employment, gestational age, and the age of the mother. Results. Between 1978 and 1992, there was an increase in birth weight in each of the four BMI categories (i.e. BMI20, 20-24.9, 25-29.9 and 30, respectively) even after adjustments were made for relevant background characteristics (p0.001). However, between 1992 and 2001, the birth weight for children whose mothers had a BMI of less than 20 or between 20 and 24.9 decreased (p0.001). For almost every study year, the mothers BMI was of significant influence on the childrens birth weights. However, the proportion of variance explained by the models (i.e. the adjusted R2) was not substantially altered when the mothers BMI was excluded from the models. Conclusion. Maternal BMI is of significance to explain trends in infants birth weight over time, but not of sole importance.
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- Ekholm Selling, Katarina, et al.
(författare)
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Hospitalization in adolescence affects the likelihood of giving birth : a Swedish population-based register study.
- 2009
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Ingår i: Acta paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 98:3, s. 561-6
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Tidskriftsartikel (refereegranskat)abstract
- Aim: To examine the effect of hospitalization during adolescence on the likelihood of giving birth.Methods: 142 998 women born in 1973-75 were followed with the help of the Swedish Medical Birth Register (MBR) and the Swedish Total Population Register (TPR) up until the end of 2000 with respect to their likelihood of giving birth. All analyses were adjusted for parental socio-economic characteristics and factors related to the studied women's own birth.Results: The likelihood of giving birth between 20 and 27 years of age was positively affected by hospitalization at least once during adolescence according to the Swedish Hospital Discharge Register (HDR); adjusted hazard ratio (HR) = 1.32, 95% confidence interval: 1.29-1.35. Women hospitalized due to genitourinary diseases, respiratory diseases, abdominal problems and abuse of alcohol and drugs were more likely to have given birth during the study period, while hospitalizations according to cerebral palsy and congenital malformations tended to decrease childbearing. Women hospitalized due to psychiatric diseases had an increase likelihood of given birth at 20-24 years but a reduced thereafter.Conclusion: A majority of the causes of hospitalization during adolescence increased the likelihood of giving birth between ages 20 to 27.
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- Ekholm Selling, Katarina, et al.
(författare)
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Hospitalizations in adolescence and early adulthood among Swedish men and women born preterm or small for gestational age
- 2008
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Ingår i: Epidemiology. - 1044-3983 .- 1531-5487. ; 19:1, s. 63-70
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Tidskriftsartikel (refereegranskat)abstract
- Background: Preterm birth and reduced intrauterine growth appear to be related to morbidity in childhood and later adulthood. We studied whether the risk of all-cause hospitalization in adolescence and early adulthood differed between individuals who were born preterm or small for gestational age (SGA) compared with those bom at term and appropriate for gestational age. Methods: Using Swedish registries, we followed 304,275 men and women born in 1973-1975 for any hospitalizations occurring in 1987-1996. Preterm birth was defined as <37 weeks of gestation and SGA as babies smaller than 2 standard deviations below the mean weight for gestational length, according to Swedish standards. We created 3 mutually exclusive categories: "preterm" (<37 weeks and not SGA), "SGA" (SGA and not preterm), and "both preterm and SGA." The comparison group was all term births not SGA. Childhood socioeconomic characteristics were accounted for in the analyses. Results: The overall risk of hospitalization was higher for men and women bom SGA (adjusted odds ratio = 1.16; 95% confidence interval = 1.12-1.21), for those born preterm (1.06; 1.02-1.10), and for those born both preterm and SGA (1.42; 1.26-1.59). In addition to higher risks for previously reported adverse health outcomes, such as neurodevelopment sequelae and congenital anomalies, men and women born SGA or preterm were more likely to be hospitalized due to unspecified symptoms. SGA also appeared to be associated with genitourinary diseases and drug use. Conclusions: Men and women born SGA or preterm were at higher risk for hospitalization during adolescence and early adulthood, with men and women born SGA more at risk than those bom preterm.
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- Englund, Hillevi, 1980-, et al.
(författare)
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Sensitive ELISA detection of amyloid-β protofibrils in biological samples
- 2007
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Ingår i: Journal of Neurochemistry. - : Wiley. - 0022-3042 .- 1471-4159. ; 103:1, s. 334-345
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Tidskriftsartikel (refereegranskat)abstract
- Amyloid-β (Aβ) protofibrils are known intermediates of the in vitro Aβ aggregation process and the protofibrillogenic Arctic mutation (APPE693G) provides clinical support for a pathogenic role of Aβ protofibrils in Alzheimer's disease (AD). To verify their in vivo relevance and to establish a quantitative Aβ protofibril immunoassay, Aβ conformation dependent monoclonal antibodies were generated. One of these antibodies, mAb158 (IgG2a), was used in a sandwich ELISA to specifically detect picomolar concentrations of Aβ protofibrils without interference from Aβ monomers or the amyloid precursor protein (APP). The specificity and biological significance of this ELISA was demonstrated using cell cultures and transgenic mouse models expressing human APP containing the Swedish mutation (APPKN670/671ML), or the Swedish and Arctic mutation in combination. The mAb158 sandwich ELISA analysis revealed presence of Aβ protofibrils in both cell and animal models, proving that Aβ protofibrils are formed not only in vitro, but also in vivo. Furthermore, elevated Aβ protofibril levels in the Arctic-Swedish samples emphasize the usefulness of the Arctic mutation as a model of enhanced protofibril formation. This assay provides a novel tool for investigating the role of Aβ protofibrils in AD and has the potential of becoming an important diagnostic assay.
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