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- Paillard-Borg, Stéphanie, et al.
(författare)
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Leisure activities in late life in relation to dementia risk : principal component analysis
- 2009
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Ingår i: Dementia and Geriatric Cognitive Disorders. - : S. Karger AG. - 1420-8008 .- 1421-9824. ; 28:2, s. 136-144
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: To explore the underlying dimensions of a set of interrelated lifestyle factors and test the hypothesis that an active lifestyle may protect against dementia. METHODS: The study population consisted of 776 participants aged >or=75 years who were dementia-free at both baseline and the first follow-up examinations. Participation in leisure activities was assessed at baseline of the survey, and principal component analysis was used to identify their underlying factors. RESULTS: During the 9-year follow-up from exposure assessment, 212 subjects developed dementia. Higher factor scores of physical, mental, and social dimensions of an active lifestyle was each related to a lower dementia risk. A significant dose-response association between participation in the diverse dimensions and lower dementia risk was observed. CONCLUSION: An active lifestyle may protect older people against dementia, and the higher level of engagement the stronger protection.
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| 2. |
- Paillard-Borg, Stéphanie, et al.
(författare)
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Pattern of participation in leisure activities among older people in relation to their health conditions and contextual factors : a survey in a Swedish urban area
- 2009
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Ingår i: Ageing & Society. - 0144-686X .- 1469-1779. ; 29:5, s. 803-821
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this study is to describe the pattern of participation in leisure activities in an older population in relation to contextual factors as well as to mental and physical health. A cohort of 1,623 participants aged 75 or older living in Stockholm, Sweden was asked to list all the leisure activities they were engaged in. These were successively organised into 31 major categories and further grouped into mental, social, physical, productive and recreational types. The pattern of participation was examined in relation to age, gender, contextual factors (education, social network) and health status (depressive symptoms, cognitive impairment, dementia, somatic diseases and physical limitation). In spite of their advanced age, the majority of the population was active, as 70 per cent had participated in at least one activity. Reading (19%) was the most prevalent individual activity, and mental activities (43%) the most prevalent activity type. Older age, female gender, low education status, having a poor or limited social network, mental disorders, and physical limitation, were all factors correlated with a decreased engagement in 'at least one activity '. Contextual factors and health-related factors were related to the five activity types in different ways. The pattern of participation in leisure activities is associated with multiple factors and their recognition is essential to the facilitation of an active lifestyle in the older population
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| 3. |
- Wang, Stephanie X., et al.
(författare)
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The structure of chagasin in complex with a cysteine protease clarifies the binding mode and evolution of an inhibitor family
- 2007
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Ingår i: Structure. - : Elsevier BV. - 0969-2126. ; 15:5, s. 535-543
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Tidskriftsartikel (refereegranskat)abstract
- Protein inhibitors of proteolytic enzymes regulate proteolysis and prevent the pathological effects of excess endogenous or exogenous proteases. Cysteine proteases are a large family of enzymes found throughout the plant and animal kingdoms. Disturbance of the equilibrium between cysteine proteases and natural inhibitors is a key event in the pathogenesis of cancer, rheumatoid arthritis, osteoporosis, and emphysema. A family (142) of cysteine protease inhibitors (http://merops.sanger.ac.uk) was discovered in protozoan parasites and recently found widely distributed in prokaryotes and eukaryotes. We report the 2.2 A crystal structure of the signature member of the 142 family, chagasin, in complex with a cysteine protease. Chagasin has a unique variant of the immunoglobulin fold with homology to human CD8 alpha. Interactions of chagasin with a target protease are reminiscent of the cystatin family inhibitors. Protein inhibitors of cysteine proteases may have evolved more than once on nonhomologous scaffolds.
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