| 1. |
- Bentham, James, et al.
(författare)
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A century of trends in adult human height
- 2016
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Ingår i: eLIFE. - 2050-084X. ; 5
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Tidskriftsartikel (refereegranskat)abstract
- Being taller is associated with enhanced longevity, and higher education and earnings. We reanalysed 1472 population-based studies, with measurement of height on more than 18.6 million participants to estimate mean height for people born between 1896 and 1996 in 200 countries. The largest gain in adult height over the past century has occurred in South Korean women and Iranian men, who became 20.2 cm (95% credible interval 17.522.7) and 16.5 cm (13.319.7) taller, respectively. In contrast, there was little change in adult height in some sub-Saharan African countries and in South Asia over the century of analysis. The tallest people over these 100 years are men born in the Netherlands in the last quarter of 20th century, whose average heights surpassed 182.5 cm, and the shortest were women born in Guatemala in 1896 (140.3 cm; 135.8144.8). The height differential between the tallest and shortest populations was 19-20 cm a century ago, and has remained the same for women and increased for men a century later despite substantial changes in the ranking of countries.
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| 2. |
- Bentham, James, et al.
(författare)
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A century of trends in adult human height
- 2016
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Ingår i: eLIFE. - : eLife Sciences Publications Ltd. - 2050-084X. ; 5
-
Tidskriftsartikel (refereegranskat)abstract
- Being taller is associated with enhanced longevity, and higher education and earnings. We reanalysed 1472 population-based studies, with measurement of height on more than 18.6 million participants to estimate mean height for people born between 1896 and 1996 in 200 countries. The largest gain in adult height over the past century has occurred in South Korean women and Iranian men, who became 20.2 cm (95% credible interval 17.5–22.7) and 16.5 cm (13.3– 19.7) taller, respectively. In contrast, there was little change in adult height in some sub-Saharan African countries and in South Asia over the century of analysis. The tallest people over these 100 years are men born in the Netherlands in the last quarter of 20th century, whose average heights surpassed 182.5 cm, and the shortest were women born in Guatemala in 1896 (140.3 cm; 135.8– 144.8). The height differential between the tallest and shortest populations was 19-20 cm a century ago, and has remained the same for women and increased for men a century later despite substantial changes in the ranking of countries.
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| 3. |
- Borst, Louise, et al.
(författare)
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Genome-wide analysis of cytogenetic aberrations in ETV6/RUNX1-positive childhood acute lymphoblastic leukaemia.
- 2012
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Ingår i: British Journal of Haematology. - : Wiley. - 0007-1048 .- 1365-2141. ; 157:4, s. 476-82
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Tidskriftsartikel (refereegranskat)abstract
- The chromosomal translocation t(12;21) resulting in the ETV6/RUNX1 fusion gene is the most frequent structural cytogenetic abnormality among patients with childhood acute lymphoblastic leukaemia (ALL). We investigated 62 ETV6/RUNX1-positive childhood ALL patients by single nucleotide polymorphism array to explore acquired copy number alterations (CNAs) at diagnosis. The mean number of CNAs was 2·82 (range 0-14). Concordance with available G-band karyotyping and comparative genomic hybridization was 93%. Based on three major protein-protein complexes disrupted by these CNAs, patients could be categorized into four distinct subgroups, defined by different underlying biological mechanisms relevant to the aetiology of childhood ALL. When recurrent CNAs were evaluated by an oncogenetic tree analysis classifying their sequential order, the most common genetic aberrations (deletions of 6q, 9p, 13q and X, and gains of 10 and 21) seemed independent of each other. Finally, we identified the most common regions with recurrent gains and losses, which comprise microRNA clusters with known oncogenic or tumour-suppressive roles. The present study sheds further light on the genetic diversity of ETV6/RUNX1-positive childhood ALL, which may be important for understanding poor responses among this otherwise highly curable subset of ALL and lead to novel targeted treatment strategies.
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| 4. |
- Brieghel, Christian, et al.
(författare)
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The Number of Signaling Pathways Altered by Driver Mutations in Chronic Lymphocytic Leukemia Impacts Disease Outcome
- 2020
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Ingår i: Clinical Cancer Research. - : AMER ASSOC CANCER RESEARCH. - 1078-0432 .- 1557-3265. ; 26:6, s. 1507-1515
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: Investigation of signaling pathways altered by recurrent gene mutations and their clinical impact in a consecutive cohort of patients with newly diagnosed chronic lymphocytic leukemia (CLL). The heterogeneous clinical course and genetic complexity of CLL warrant improved molecular prognostication. However, the prognostic value of recurrent mutations at the time of diagnosis remains unclear. Experimental Design: We sequenced samples from 314 consecutive, newly diagnosed patients with CLL to investigate the clinical impact of 56 recurrently mutated genes assessed by next-generation sequencing. Results: Mutations were identified in 70% of patients with enrichment among IGHV unmutated cases. With 6.5 years of follow-up, 15 mutated genes investigated at the time of diagnosis demonstrated significant impact on time to first treatment (TTFT). Carrying driver mutations was associated with shorter TTFT and poor overall survival. For outcome from CLL diagnosis, the number of signaling pathways altered by driver mutations stratified patients better than the number of driver mutations. Moreover, we demonstrated gradual impact on TTFT with increasing number of altered pathways independent of CLL-IPI risk. Thus, a 25-gene, pathway-based biomarker assessing recurrent mutations refines prognostication in CLL, in particular for CLL-IPI low- and intermediate-risk patients. External validation emphasized that a broad gene panel including low burden mutations was key for the biomarker based on altered pathways. Conclusions: We propose to include the number of pathways altered by driver mutations as a biomarker together with CLL-IPI in prospective studies of CLL from time of diagnosis for incorporation into clinical care and personalized follow-up and treatment.
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| 5. |
- Cortes, Dina, et al.
(författare)
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A new model of paired clinical teaching of international and Danish medical students
- 2016
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Ingår i: Danish Medical Journal. - 2245-1919. ; 63:7, s. 1-5
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Tidskriftsartikel (refereegranskat)abstract
- INTRODUCTION: Since 2006, one hospital has offered two clinical courses in obstetrics/gynaecology and paediatrics to international (I) students. However, as I-student enrolment increased, the hospital faced cut-backs. As from 2010, I-team course evaluations therefore dropped to unacceptable levels and more I- than Danish (DK) students failed exams. Therefore, in 2012 we started a three-year internationalisation project (I-project) at two hospitals. The primary intervention was to pair training for I- and DK-students at clinical contact, and to offer an exclusive daily lecturer for I-teams.METHODS: We compared the course evaluations and exam grades of I-teams and DK-teams for two years prior to (107 from I-teams - 211 participants from DK-teams) and during the I-project (245 participants from I-teams - 575 from DK-teams).RESULTS: During the I-project, the I-teams' course evaluations increased to acceptable values and to levels comparable to the evaluation scores of DK-teams. Furthermore, I-students now considered that their communication with the patients was acceptable. Before the I-project, I-students had lower exam grades (median = 10 (range: 0-12)) than DK-students (10 (4-12)) (p = 0.03), but during the I-project, exam grades increased to the levels achieved by DK-students (10 (2-12) - 10 (0-12) (p = 0.22), and no more I- than DK-students failed exams (p = 0.51).CONCLUSIONS: Pairing students for clinical training and allocating an exclusive lecturer for I-teams produced improved courses for internationalisation. Allocating an exclusive lecturer was associated with a cost of about 615 EUR per student per course when the team consisted of ten students.FUNDING: The Capital Region of Denmark and the University of Copenhagen.TRIAL REGISTRATION: not relevant.
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| 6. |
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| 7. |
- Kanai, M, et al.
(författare)
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- 2023
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swepub:Mat__t
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| 8. |
- Andersen, Kasper, et al.
(författare)
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Exercise capacity and muscle strength and risk of vascular disease and arrhythmia in 1.1 million young Swedish men : cohort study
- 2015
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Ingår i: BMJ-BRITISH MEDICAL JOURNAL. - : BMJ. - 1756-1833. ; 351
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE To investigate the associations of exercise capacity and muscle strength in late adolescence with risk of vascular disease and arrhythmia. DESIGN Cohort study. SETTING General population in Sweden. PARTICIPANTS 1.1 million men who participated in mandatory military conscription between 1 August 1972 and 31 December 1995, at a median age of 18.2 years. Participants were followed until 31 December 2010. MAIN OUTCOMES Associations between exercise capacity and muscle strength with risk of vascular disease and subgroups (ischaemic heart disease, heart failure, stroke, and cardiovascular death) and risk of arrhythmia and subgroups (atrial fibrillation or flutter, bradyarrhythmia, supraventricular tachycardia, and ventricular arrhythmia or sudden cardiac death). Maximum exercise capacity was estimated by the ergometer bicycle test, and muscle strength was measured as handgrip strength by a hand dynamometer. High exercise capacity or muscle strength was deemed as above the median level. RESULTS During a median follow-up of 26.3 years, 26 088 vascular disease events and 17 312 arrhythmia events were recorded. Exercise capacity was inversely associated with risk of vascular disease and its subgroups. Muscle strength was also inversely associated with vascular disease risk, driven by associations of higher muscle strength with lower risk of heart failure and cardiovascular death. Exercise capacity had a U shaped association with risk of arrhythmia, driven by a direct association with risk of atrial fibrillation and a U shaped association with bradyarrhythmia. Higher muscle strength was associated with lower risk of arrhythmia (specifically, lower risk of bradyarrhythmia and ventricular arrhythmia). The combination of high exercise capacity and high muscle strength was associated with a hazard ratio of 0.67 (95% confidence interval 0.65 to 0.70) for vascular events and 0.92 (0.88 to 0.97) for arrhythmia compared with the combination of low exercise capacity and low muscle strength. CONCLUSIONS Exercise capacity and muscle strength in late adolescence are independently and jointly associated with long term risk of vascular disease and arrhythmia. The health benefit of lower risk of vascular events with higher exercise capacity was not outweighed by higher risk of arrhythmia.
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| 9. |
- Andersen, Kasper, 1974-, et al.
(författare)
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Exercise capacity and muscle strength and risk of vascular disease and arrhythmias : A cohort study of 1.26 million young men
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- Background:While physical activity and exercise protects against cardiovascular disease, athletes have higher risk of atrial fibrillation and other arrhythmias. Graded independent and joint influences of exercise capacity and muscle strength on these diseases are unknown.Methods:All 1.26 million Swedish men who participated in mandatory military conscription between 1972 and 1995 (at a median age of 18.2 years) contributed. Multivariable-adjusted Cox proportional hazards models were used to evaluate the associations of maximal exercise capacity and muscle strength at conscription to subsequent risk of vascular disease and arrhythmias, as identified in national registries.Results:During a median follow-up of 26.3 years, about 26,000 hospitalizations for vascular disease events and 17,000 for arrhythmias occurred. Exercise capacity was inversely associated with risk of vascular disease (hazard ratio [HR] 0.64; 95% confidence interval [CI] 0.61-0.67]; for 5th vs. 1st quintile) and so was muscle strength (HR 0.79; 0.76-0.83; for 5th vs. 1st quintile ). Similar associations were seen across a range of major vascular disease events. Exercise capacity was associated with incidence of arrhythmias in a U-shaped fashion (HR 0.91; 0.86-0.96; for 3rd vs. 1st quintile, and 0.99; 0.94-1.04; for 5th vs. 1st quintile). Higher muscle strength was associated with lower risk of arrhythmias (HR 0.87; 0.83-0.91; for 5th vs. 1st quintile). Conclusion:Exercise capacity and muscle strength in late adolescence are independently and jointly associated with long-term risk of vascular disease and arrhythmias. The lower risk of vascular events with higher exercise capacity was not outweighed by higher risk of arrhythmias.
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| 10. |
- Andersen, Kasper Winther, et al.
(författare)
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Disentangling white-matter damage from physiological fibre orientation dispersion in multiple sclerosis
- 2020
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Ingår i: Brain Communications. - : Oxford University Press (OUP). - 2632-1297. ; 2:2, s. 1-14
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Tidskriftsartikel (refereegranskat)abstract
- Multiple sclerosis leads to diffuse damage of the central nervous system, affecting also the normal-appearing white matter. Demyelination and axonal degeneration reduce regional fractional anisotropy in normal-appearing white matter, which can be routinely mapped with diffusion tensor imaging. However, the standard fractional anisotropy metric is also sensitive to physiological variations in orientation dispersion of white matter fibres. This complicates the detection of disease-related damage in large parts of cerebral white matter where microstructure physiologically displays a high degree of fibre dispersion. To resolve this ambiguity, we employed a novel tensor-valued encoding method for diffusion MRI, which yields a microscopic fractional anisotropy metric that is unaffected by regional variations in orientation dispersion. In 26 patients with relapsing-remitting multiple sclerosis, 14 patients with primary-progressive multiple sclerosis and 27 age-matched healthy controls, we compared standard fractional anisotropy mapping with the novel microscopic fractional anisotropy mapping method, focusing on normal-appearing white matter. Mean microscopic fractional anisotropy and standard fractional anisotropy of normal-appearing white matter were significantly reduced in both patient groups relative to healthy controls, but microscopic fractional anisotropy yielded a better reflection of disease-related white-matter alterations. The reduction in mean microscopic fractional anisotropy showed a significant positive linear relationship with physical disability, as reflected by the expanded disability status scale. Mean reduction of microscopic fractional anisotropy in normal-appearing white matter also scaled positively with individual cognitive dysfunction, as measured with the symbol digit modality test. Mean microscopic fractional anisotropy reduction in normal-appearing white matter also showed a positive relationship with total white-matter lesion load as well as lesion load in specific tract systems. None of these relationships between normal-appearing white-matter microstructure and clinical, cognitive or structural measures emerged when using mean fractional anisotropy. Together, the results provide converging evidence that microscopic fractional anisotropy mapping substantially advances the assessment of cerebral white matter in multiple sclerosis by disentangling microstructure damage from variations in physiological fibre orientation dispersion at the stage of data acquisition. Since tensor-valued encoding can be implemented in routine diffusion MRI, microscopic fractional anisotropy mapping bears considerable potential for the future assessment of disease progression in normal-appearing white matter in both relapsing-remitting and progressive forms of multiple sclerosis as well as other white-matter-related brain diseases.
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