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| Name | Class |
|---|---|
| Krankenhaus Bruneck | OTHER |
| University of Graz | OTHER |
| Paracelsus Medical University | OTHER |
| Institut National de la Santé Et de la Recherche Médicale, France |
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This study seeks to test the potential association between spermidine content in diet and mortality in humans.
This prospective community-based cohort study includes 829 participants aged 45-84 years, 49.9% of which are male. Diet is assessed by repeated dietician-administered validated food-frequency questionnaires (2540 assessments) in 1995, 2000, 2005, and 2010. Nutrient intakes including spermidine are calculated using USDA standard databases. Clinical events (all-cause mortality and cause-specific mortality) are recorded from 1995 to 2015.
The primary endpoint of all-cause mortality is related to the exposure of long-term average spermidine intake by Cox proportional hazards models with time-varying covariates. Additional analyses employ the Fine and Gray proportional subdistribution hazards model and flexible Royston-Parmar spline-based models. Comprehensive sensitivity analyses are performed to guard against potential biases associated with nutritional epidemiology.
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Spermidine content of natural diet | Other | The exposure consists in the long-term average dietary intake of the polyamine spermidine |
| Measure | Description | Time Frame |
|---|---|---|
| All-cause mortality | Death due to any cause | 1995-2015 |
| Measure | Description | Time Frame |
|---|---|---|
| Cause-specific mortalities | Death due to cardiovascular disease, cancer, or other causes | 1995-2015 |
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Inclusion Criteria:
Resident of Bruneck aged 40-79 years in 1990, age- and sex-stratified random sample.
Exclusion Criteria: None.
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A random sample intended to represent the general population, recruited in 1990.
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| Name | Affiliation | Role |
|---|---|---|
| Stefan Kiechl, MD | Medical University Innsbruck | Principal Investigator |
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| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 12124407 | Background | Kiechl S, Lorenz E, Reindl M, Wiedermann CJ, Oberhollenzer F, Bonora E, Willeit J, Schwartz DA. Toll-like receptor 4 polymorphisms and atherogenesis. N Engl J Med. 2002 Jul 18;347(3):185-92. doi: 10.1056/NEJMoa012673. | |
| 24622385 | Background | Stegemann C, Pechlaner R, Willeit P, Langley SR, Mangino M, Mayr U, Menni C, Moayyeri A, Santer P, Rungger G, Spector TD, Willeit J, Kiechl S, Mayr M. Lipidomics profiling and risk of cardiovascular disease in the prospective population-based Bruneck study. Circulation. 2014 May 6;129(18):1821-31. doi: 10.1161/CIRCULATIONAHA.113.002500. Epub 2014 Mar 12. |
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We do not plan to share individual participant data.
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| ID | Term |
|---|---|
| D002318 | Cardiovascular Diseases |
| D009369 | Neoplasms |
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| OTHER_GOV |
| King's College London | OTHER |
| Universitaet Innsbruck | OTHER |
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| 28209220 | Background | Pechlaner R, Tsimikas S, Yin X, Willeit P, Baig F, Santer P, Oberhollenzer F, Egger G, Witztum JL, Alexander VJ, Willeit J, Kiechl S, Mayr M. Very-Low-Density Lipoprotein-Associated Apolipoproteins Predict Cardiovascular Events and Are Lowered by Inhibition of APOC-III. J Am Coll Cardiol. 2017 Feb 21;69(7):789-800. doi: 10.1016/j.jacc.2016.11.065. |
| 29955838 | Derived | Kiechl S, Pechlaner R, Willeit P, Notdurfter M, Paulweber B, Willeit K, Werner P, Ruckenstuhl C, Iglseder B, Weger S, Mairhofer B, Gartner M, Kedenko L, Chmelikova M, Stekovic S, Stuppner H, Oberhollenzer F, Kroemer G, Mayr M, Eisenberg T, Tilg H, Madeo F, Willeit J. Higher spermidine intake is linked to lower mortality: a prospective population-based study. Am J Clin Nutr. 2018 Aug 1;108(2):371-380. doi: 10.1093/ajcn/nqy102. |