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- Eckhardt, CL, et al.
(författare)
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Factor VIII gene (F8) mutation and risk of inhibitor development in nonsevere hemophilia A
- 2013
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Ingår i: Blood. - : American Society of Hematology. - 1528-0020 .- 0006-4971. ; 122:11, s. 1954-1962
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Tidskriftsartikel (refereegranskat)abstract
- The inhibitor incidence in nonsevere hemophilia A patients with certain F8 mutations approaches the inhibitor incidence in severe patients. These findings are highly relevant for clinical practice, as they facilitate identification of high-risk patients based on F8 genotype.
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- Langstrom, S, et al.
(författare)
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Haematopoietic Stem Cell Transplantation in Children Shifts the Coagulation System towards a Pro-Coagulant State
- 2018
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Ingår i: Thrombosis and haemostasis. - : Georg Thieme Verlag KG. - 2567-689X .- 0340-6245. ; 118:8, s. 1390-1396
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Tidskriftsartikel (refereegranskat)abstract
- Coagulation system is disturbed by several mechanisms after allogeneic haematopoietic stem cell transplantation (HSCT). We evaluated the effect of HSCT on coagulation system by various conventional and investigational methods in 30 children and adolescents who received HSCT due to haematological malignancies. Pro-thrombin fragment 1 + 2, a specific measure of thrombin generation, and von Willebrand factor, a measure of endothelial activation, increased after conditioning treatment, and remained elevated until 3 months after HSCT (p < 0.05 for all comparisons to pre-conditioning treatment). D-dimer, a measure of fibrin turnover, was elevated from the second week onwards until 4 weeks after HSCT (p < 0.05). Endogenous thrombin potential was increased after conditioning, and at 2 weeks after HSCT (p < 0.05). Furthermore, the activities of acute phase reactants fibrinogen and coagulation factor VIII were increased (p < 0.05 for all comparisons to pre-conditioning treatment) from the first week onwards up to 3 weeks and 3 months after HSCT, respectively. Taken together, paediatric patients receiving HSCT demonstrate distinct and prolonged variations in the coagulation system towards a pro-coagulant state. This shift is of importance when estimating the risk of haemostatic and thrombotic complications in these children.
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- Moreno, TMC, et al.
(författare)
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Deletion of the Ink4-locus (the p16ink4a, p14ARF and p15ink4b genes) predicts relapse in children with ALL treated according to the Nordic protocols NOPHO-86 and NOPHO-92
- 2002
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Ingår i: Leukemia. - : Springer Science and Business Media LLC. - 1476-5551 .- 0887-6924. ; 16, s. 2037-
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Tidskriftsartikel (refereegranskat)abstract
- Inactivation of the Ink4 gene locus locus on 9p comprising the tumour suppressor gene p16ink4a and its neighbours p14ARF and p15ink4b is common in childhood acute lymphoblastic leukaemia (ALL), but the prognostic significance is controversial. DNA from 230 patients was retrospectively analysed by Southern blotting, single strand conformation polymorphism (SSCP) and sequencing techniques. The results were correlated with clinical characteristics and outcome. One hundred and ninety-four fully analysed patients, similarly treated using the Nordic NOPHO-86 or the current NOPHO-92 protocols, were included in the outcome analysis. Deletions approached a minimally deleted region between the p16ink4a and p15ink4b genes, making the p14ARF gene the most commonly deleted coding sequence. Bi-allelic deletion was associated with high white blood cell count (WBC) (P < 0.001), T cell phenotype (P < 0.001) and mediastinal mass (P < 0.001). Patients with Ink4 locus bi-allelic deletions had an inferior pEFS (P < 0.01) and multivariate analysis indicated that bi-allelic deletion of the p16ink4a and the p14ARF genes was an independent prognostic risk factor (P < 0.05). Sub-group analysis revealed a pronounced impact of deletion status for high-risk patients, ie with high WBC. Deletion-status and clinical risk criteria (WBC) could thus be combined to further differentiate risk within the high-risk group. The analysis of the Ink4 locus adds independent prognostic information in childhood ALL treated by Nordic protocols and may help in selection of patients for alternative treatment.
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