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Habota T, Sandu AL, Waiter GD, McNeil CJ, Steele JD, Macfarlane JA, Whalley HC, Valentine R, Younie D, Crouch N, Hawkins EL, Hirose Y, Romaniuk L, Milburn K, Buchan G, Coupar T, Stirling M, Jagpal B, MacLennan B, Priba L, Harris MA, Hafferty JD, Adams MJ, Campbell AI, MacIntyre DJ, Pattie A, Murphy L, Reynolds RM, Elliot R, Penton-Voak IS, Munafò MR, Evans KL, Seckl JR, Wardlaw JM, Lawrie SM, Haley CS, Porteous DJ, Deary IJ, Murray AD, McIntosh AM. Cohort profile for the STratifying Resilience and Depression Longitudinally (STRADL) study: A depression-focused investigation of Generation Scotland, using detailed clinical, cognitive, and neuroimaging assessments. Wellcome Open Res 2022; 4:185. [PMID: 35237729 PMCID: PMC8857525 DOI: 10.12688/wellcomeopenres.15538.2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2021] [Indexed: 11/20/2022] Open
Abstract
STratifying Resilience and Depression Longitudinally (STRADL) is a population-based study built on the Generation Scotland: Scottish Family Health Study (GS:SFHS) resource. The aim of STRADL is to subtype major depressive disorder (MDD) on the basis of its aetiology, using detailed clinical, cognitive, and brain imaging assessments. The GS:SFHS provides an important opportunity to study complex gene-environment interactions, incorporating linkage to existing datasets and inclusion of early-life variables for two longitudinal birth cohorts. Specifically, data collection in STRADL included: socio-economic and lifestyle variables; physical measures; questionnaire data that assesses resilience, early-life adversity, personality, psychological health, and lifetime history of mood disorder; laboratory samples; cognitive tests; and brain magnetic resonance imaging. Some of the questionnaire and cognitive data were first assessed at the GS:SFHS baseline assessment between 2006-2011, thus providing longitudinal measures relevant to the study of depression, psychological resilience, and cognition. In addition, routinely collected historic NHS data and early-life variables are linked to STRADL data, further providing opportunities for longitudinal analysis. Recruitment has been completed and we consented and tested 1,188 participants.
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Habota T, Sandu AL, Waiter GD, McNeil CJ, Steele JD, Macfarlane JA, Whalley HC, Valentine R, Younie D, Crouch N, Hawkins EL, Hirose Y, Romaniuk L, Milburn K, Buchan G, Coupar T, Stirling M, Jagpal B, MacLennan B, Priba L, Harris MA, Hafferty JD, Adams MJ, Campbell AI, MacIntyre DJ, Pattie A, Murphy L, Reynolds RM, Elliot R, Penton-Voak IS, Munafò MR, Evans KL, Seckl JR, Wardlaw JM, Lawrie SM, Haley CS, Porteous DJ, Deary IJ, Murray AD, McIntosh AM. Cohort profile for the STratifying Resilience and Depression Longitudinally (STRADL) study: A depression-focused investigation of Generation Scotland, using detailed clinical, cognitive, and neuroimaging assessments. Wellcome Open Res 2021; 4:185. [PMID: 35237729 PMCID: PMC8857525 DOI: 10.12688/wellcomeopenres.15538.1] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2021] [Indexed: 08/18/2023] Open
Abstract
STratifying Resilience and Depression Longitudinally (STRADL) is a population-based study built on the Generation Scotland: Scottish Family Health Study (GS:SFHS) resource. The aim of STRADL is to subtype major depressive disorder (MDD) on the basis of its aetiology, using detailed clinical, cognitive, and brain imaging assessments. The GS:SFHS provides an important opportunity to study complex gene-environment interactions, incorporating linkage to existing datasets and inclusion of early-life variables for two longitudinal birth cohorts. Specifically, data collection in STRADL included: socio-economic and lifestyle variables; physical measures; questionnaire data that assesses resilience, early-life adversity, personality, psychological health, and lifetime history of mood disorder; laboratory samples; cognitive tests; and brain magnetic resonance imaging. Some of the questionnaire and cognitive data were first assessed at the GS:SFHS baseline assessment between 2006-2011, thus providing longitudinal measures relevant to the study of depression, psychological resilience, and cognition. In addition, routinely collected historic NHS data and early-life variables are linked to STRADL data, further providing opportunities for longitudinal analysis. Recruitment has been completed and we consented and tested 1,188 participants.
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Chungath RR, Witham MD, Clarke CL, Hutcheon A, Gandy S, Gingles C, Priba L, Nicholas S, Cavin I, Sumukadas D, Struthers AD, George J. 42 Is Mitochondrial Function Measured by 31P Magnetic Resonance Spectroscopy Associated with Physical Performance in Older People with Functional Impairment? Age Ageing 2021. [DOI: 10.1093/ageing/afab030.03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Mitochondrial dysfunction has been proposed as a therapeutic target to improve muscle strength and endurance, but the contribution that mitochondrial dysfunction makes to impaired skeletal muscle performance in older people remains unclear. We studied the relationship between phosphocreatine recovery rate (a measure of skeletal muscle mitochondrial function) and physical performance in older people.
Methods
We analysed data from the Allopurinol in Functional Impairment (ALFIE) trial. Participants aged 65 and over, who were unable to walk 400 m in six minutes, underwent 31P magnetic resonance spectroscopy of the calf after exercise at baseline and at 20 weeks follow up. The phosphocreatine recovery half-life time (t-half) was derived as a measure of mitochondrial function. Participants also undertook the 6-minute walk distance, the Short Physical Performance Battery test (SPPB), and had muscle mass measured using bio-impedance analysis. Bivariate correlations and multivariable regression analyses were conducted to determine associations between t-half and baseline factors.
Results
One hundred and seventeen people underwent baseline 31P magnetic resonance spectroscopy, mean age 80.4 years (SD 6.0); 56 (48%) were female. Mean 6-minute walk was 291 m (SD 80) and mean SPPB score was 8.4 (SD 1.9). T-half was significantly correlated with SPPB score (r = 0.22, p = 0.02) but not with 6-minute walk distance (r = 0.10, p = 0.29). In multivariable linear regression, muscle mass and weight, but not t-half, were independently associated with SPPB score and with 6-minute walk distance. The change in t-half between baseline and 20 weeks was not significantly associated with the change in SPPB (r = 0.03, p = 0.79) or with the change in 6-minute walk distance (r = −0.11, p = 0.28).
Conclusion
Muscle mass, but not phosphocreatine recovery time, was associated with Short Physical Performance Battery score and 6-minute walk distance in this cohort of older people with functional impairment.
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Affiliation(s)
- R R Chungath
- Age Research Group, NIHR Newcastle Biomedical Research Centre
| | - M D Witham
- Age Research Group, NIHR Newcastle Biomedical Research Centre
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MacDonald CJ, Hellmuth R, Priba L, Murphy E, Gandy S, Matthew S, Ross R, Houston JG. Experimental Assessment of Two Non-Contrast MRI Sequences Used for Computational Fluid Dynamics: Investigation of Consistency Between Techniques. Cardiovasc Eng Technol 2020; 11:416-430. [PMID: 32613600 PMCID: PMC7385008 DOI: 10.1007/s13239-020-00473-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/20/2020] [Indexed: 11/05/2022]
Abstract
Purpose Recent studies have noted a degree of variance between the geometries segmented by different groups from 3D medical images that are used in computational fluid dynamics (CFD) simulations of patient-specific cardiovascular systems. The aim of this study was to determine if the applied sequence of magnetic resonance imaging (MRI) also introduced observable variance in CFD results. Methods Using a series of phantoms MR images of vessels of known diameter were assessed for the time-of-flight and multi-echo data image combination sequences. Following this, patient images of arterio-venous fistulas were acquired using the same sequences. Comparisons of geometry were made using the phantom and patient images, and of wall shear stress quantities using the CFD results from the patient images. Results Phantom images showed deviations in diameter between 0 and 15% between the sequences, depending on vessel diameter. Patient images showed different geometrical features such as narrowings that were not present on both sequences. Distributions of wall shear stress (WSS) quantities differed from simulations between the geometries obtained from the sequences. Conclusion In conclusion, choosing different MRI sequences resulted in slightly different geometries of the same anatomy, which led to compounded errors in WSS quantities from CFD simulation. Electronic supplementary material The online version of this article (10.1007/s13239-020-00473-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- C J MacDonald
- Imaging and Technology, University of Dundee, Dundee, UK
| | - R Hellmuth
- Vascular Flow Technologies LTD, Dundee, UK
| | - L Priba
- Medical Physics, NHS Tayside, Dundee, UK
| | - E Murphy
- Imaging and Technology, University of Dundee, Dundee, UK
| | - S Gandy
- Medical Physics, NHS Tayside, Dundee, UK
| | - S Matthew
- Imaging and Technology, University of Dundee, Dundee, UK
| | - R Ross
- Vascular Laboratory, NHS Tayside, Dundee, UK
| | - J G Houston
- Imaging and Technology, University of Dundee, Dundee, UK. .,Molecular and Clinical Medicine, School of Medicine, University of Dundee, Dundee, UK.
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George J, Clarke CL, Hutcheon A, Gandy S, Gingles C, Priba L, Nicholas S, Cavin I, Sumukadas D, McMurdo ME, Struthers AD, Witham MD. 49EFFECT OF ALLOPURINOL ON SKELETAL MUSCLE PHOSPHOCREATINE RECOVERY RATE AND PHYSICAL FUNCTION IN OLDER PEOPLE WITH IMPAIRED PHYSICAL FUNCTION: A RANDOMISED CONTROLLED TRIAL. Age Ageing 2019. [DOI: 10.1093/ageing/afz076.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - M D Witham
- NIHR Newcastle Biomedical Research Centre
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Giannotti E, Waugh S, Priba L, Davis Z, Crowe E, Vinnicombe S. Assessment and quantification of sources of variability in breast apparent diffusion coefficient (ADC) measurements at diffusion weighted imaging. Eur J Radiol 2015; 84:1729-36. [DOI: 10.1016/j.ejrad.2015.05.032] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2015] [Revised: 05/21/2015] [Accepted: 05/29/2015] [Indexed: 10/23/2022]
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