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- Strang-Karlsson, S, et al.
(author)
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Migraine in children and adults born preterm: A nationwide register linkage study
- 2021
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In: Cephalalgia : an international journal of headache. - : SAGE Publications. - 1468-2982. ; 41:6, s. 677-689
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Journal article (peer-reviewed)abstract
- Being born preterm is related to adverse health effects later in life. We studied whether preterm birth predicts the risk of migraine. Methods In this nationwide register study, we linked data from six administrative registers for all 235,624 children live-born in Finland (January 1987 to September 1990) and recorded in the Finnish Medical Birth Register. n = 228,610 (97.0%) had adequate data and were included. Migraine served as primary outcome variable and was stringently defined as a diagnosis from specialised health care and/or ≥2 reimbursed purchases of triptans. We applied sex- and birth year-stratified Cox proportional hazard regression models to compute hazard ratios and confidence intervals (95% confidence intervals) for the association between preterm categories and migraine. The cohort was followed up until an average age of 25.1 years (range: 23.3–27.0). Results Among individuals born extremely preterm (23–27 completed weeks of gestation), the adjusted hazard ratios for migraine was 0.55 (0.25–1.24) when compared with the full-term reference group (39–41 weeks). The corresponding adjusted hazard ratios and 95% confidence intervals for the other preterm categories were: Very preterm (28–31 weeks); 0.95 (0.68–1.31), moderately preterm (32–33 weeks); 0.96 (0.73–1.27), late preterm (34–36 weeks); 1.01 (0.91–1.11), early term (37–38 weeks); 0.98 (0.93–1.03), and post term (42 weeks); 0.98 (0.89–1.08). Migraine was predicted by parental migraine, lower socioeconomic position, maternal hypertensive disorder and maternal smoking during pregnancy. Conclusion We found no evidence for a higher risk of migraine among individuals born preterm.
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- Alenius, S, et al.
(author)
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School grades and educational attainments of adolescents and young adults born preterm
- 2023
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In: Scientific reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 13:1, s. 231-
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Journal article (peer-reviewed)abstract
- Attendance in special education (SE) is more common among individuals born preterm than among those born at term. Less is known about school grades of those born preterm in mainstream education (ME), and how these grades predict later educational attainment. This population-based register-linkage study assessed (1) attendance in SE, and then focused on those in ME by assessing (2) school grades at 16 year, (3) completed educational level at 25 year, and (4) school grades as predictors for completed education by gestational age (GA) with full-term birth (39–41 completed weeks) as reference. The sample comprised 223,744 individuals (10,521 preterm, 4.7%) born in Finland (1/1987–9/1990). Of the sample, 4.9% attended SE. Those born preterm had up to 5.5-fold rates for SE. In ME, those born extremely preterm (EPT) had marginally lower mathematics grades compared with full-term counterparts, whilst those born late preterm or early term had slightly higher grades. Those born EPT or very preterm had lower physical education grades in ME. However, the minor differences in school grades according to GA appear not to translate into educational differences in young adulthood. The associations between school grades at 16 year and completed education at 25 year did not vary by GA.
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- Knowles, N J, et al.
(author)
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Family - Picornaviridae
- 2012
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In: Virus Taxonomy. - San Diego - London : Elsevier. - 9780123846846 ; , s. 855-881
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Book chapter (peer-reviewed)abstract
- This chapter focuses on Picornaviridae family whose member genuses includeEnterovirus, Cardiovirus, Aphthovirus, Hepatovirus, and Parechovirus. The virions of this family consist of a capsid with no envelope and surrounds a core of ssRNA. Hydrated native particles are 30 nm in diameter, but vary from 22 to 30 nm in electron micrographs due to drying and flattening during preparation. The virions contain one molecule of positive sense, ssRNA, and possess a single long ORF. The UTRs at both termini contain regions of secondary structure, which are essential to genome function. In addition to the major CPs, 1A, 1B, 1C and 1D, and 3B (VPg), small amounts of 1AB (VP0) are commonly seen in lieu of one or more copies of 1A and 1B. Protein 1A is small in hepatoviruses, and 1AB is uncleaved in avihepatoviruses, kobuviruses, parechoviruses, and a number of unclassified picornaviruses. Some picornaviruses carry a sphingosine-like molecule in a cavity located inside 1D, and protein 1A generally has a molecule of myristic acid covalently attached to the amino terminal glycine. The virion RNA is infectious and serves as both the genome and the viral mRNA. Infection is generally cytolytic, but persistent infections are common with some species and reported with others. Poliovirus infected cells undergo extensive vacuolation as membranes are reorganized into viral replication complexes.
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- Lie, S. O., et al.
(author)
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Long-term results in children with AML: NOPHO-AML Study Group--report of three consecutive trials
- 2005
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In: Leukemia. - : Springer Science and Business Media LLC. - 0887-6924 .- 1476-5551. ; 19:12, s. 2090-100
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Journal article (peer-reviewed)abstract
- In all, 447 children with acute myeloid leukaemia (AML) have been treated on three consecutive NOPHO studies from July 1984 to December 2001. NOPHO-AML 84 was of moderate intensity with an induction of three courses of cytarabine, 6-thioguanine and doxorubicin followed by four consolidation courses with high-dose cytarabine. The 5-year event-free survival (EFS), disease free survival (DFS) and overall survival (OS) were 29, 37 and 38%. NOPHO-AML 88 was of high intensity with the addition of etoposide and mitoxantrone in selected courses during induction and consolidation. The interval between the induction courses should be as short as possible, that is, time intensity was introduced. The 5-year EFS, DFS and OS were 41, 48 and 46%. In NOPHO-AML 93, the treatment was stratified according to response to first induction course. The protocol utilised the same induction blocks as NOPHO-AML 88, but after the first block, children with a hypoplastic, nonleukaemic bone marrow were allowed to recover before the second block. Consolidation was identical with NOPHO-AML 88. The 5-year EFS, DFS and OS in NOPHO-AML 93 were 48, 52 and 65%. The new NOPHO-AML protocol has been based on experiences from previous protocols with stratification of patients with regard to in vivo response and specific cytogenetic aberrations.
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