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- Title
Associations of metabolic, inflammatory and oxidative stress markers with total morbidity and multi-morbidity in a large cohort of older German adults.
- Authors
SCHÖTTKER, BEN; KAI-UWE SAUM; JANSEN, EUGÈNE H. J. M.; HOLLECZEK, BERND; BRENNER, HERMANN
- Abstract
Background: imbalances in metabolic, inflammatory and redox homeostasis play an important role in the leading theories of age-related morbidity, but no large-scale epidemiological study has been conducted so far assessing their associations with total morbidity and multi-morbidity in the same model. Methods: analyses were conducted in 2,547 participants of an established population-based cohort study from Germany. The participants' median age was 70 years (range: 57-84) and 51.9% were women. End points were total somatic morbidity and multi-morbidity, assessed by the Cumulative Illness Rating Scale-Geriatric version. Results: overall, 251 study participants had multi-morbidity (9.9%). Except for the redox marker 'total thiol levels of proteins', all other assessed metabolic (obesity, diabetes, dyslipidaemia and hypertension), inflammatory (C-reactive protein) and oxidative stress markers (derivatives of reactive oxygen metabolites) were significantly associated with total somatic morbidity and multi-morbidity if assessed individually. If modelled jointly, effect estimates were attenuated but remained statistically significant for the outcome 'total morbidity' and for low weight, obesity, insufficiently controlled diabetes and derivatives of reactive oxygen metabolites with respect to the outcome 'multi-morbidity'. Conclusions: results from this large sample of older adults support hypotheses that relate imbalances in metabolic, inflammatory and redox homeostasis to age-related morbidity. Despite over adjustment for closely related metabolic, inflammatory and oxidative stress conditions in the full model, independent associations of the markers with total morbidity and/or multi-morbidity were observed. Therefore, adverse metabolic, inflammatory and oxidative stress conditions may all play important roles in the pathogenesis of age-related morbidity, which should be investigated further in future longitudinal studies.
- Subjects
GERMANY; BIOMARKERS; DISEASES; RESEARCH funding; OXIDATIVE stress; CROSS-sectional method; DATA analysis software; DESCRIPTIVE statistics
- Publication
Age & Ageing, 2016, Vol 45, Issue 1, p127
- ISSN
0002-0729
- Publication type
Article
- DOI
10.1093/ageing/afv159