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Sökning: WFRF:(Zandi Peter P.)

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11.
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12.
  • Goes, Fernando S, et al. (författare)
  • Exome Sequencing of Familial Bipolar Disorder.
  • 2016
  • Ingår i: JAMA psychiatry. - : American Medical Association (AMA). - 2168-6238 .- 2168-622X. ; 73:6, s. 590-7
  • Tidskriftsartikel (refereegranskat)abstract
    • Complex disorders, such as bipolar disorder (BD), likely result from the influence of both common and rare susceptibility alleles. While common variation has been widely studied, rare variant discovery has only recently become feasible with next-generation sequencing.
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13.
  • Hayden, Kathleen M, et al. (författare)
  • Effects of family history and apolipoprotein E epsilon4 status on cognitive decline in the absence of Alzheimer dementia: the Cache County Study.
  • 2009
  • Ingår i: Archives of neurology. - : American Medical Association (AMA). - 1538-3687 .- 0003-9942. ; 66:11, s. 1378-83
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To evaluate the influences of a family history of Alzheimer dementia (FHxAD) and the apolipoprotein E epsilon4 genotype (APOE epsilon4) on cognitive decline. DESIGN, SETTING, AND PARTICIPANTS: Residents of Cache County, Utah, aged 65 years or older, were invited to participate. At baseline, 2957 participants provided DNA for genotyping of APOE and a detailed FHxAD. They also completed the Modified Mini-Mental State Examination. Cognitive status was reexamined after 3 and 7 years. We used mixed-effects models to examine the association among FHxAD, APOE epsilon4, and cognitive trajectories. MAIN OUTCOME MEASURE: Modified Mini-Mental State Examination score trajectories over time. RESULTS: Compared with participants who did not have APOE epsilon4 or an FHxAD, those with APOE epsilon4 scored lower on the Modified Mini-Mental State Examination at baseline (-0.70 points; 95% confidence interval [CI], -1.15 to -0.24). Participants with an FHxAD and APOE epsilon4 differed less, if at all, in baseline score (-0.46 points; 95% CI, -1.09 to 0.16) but declined faster during the 7-year study (-9.75 points [95% CI, -10.82 to -8.67] vs -2.91 points [95% CI, -3.37 to -2.44]). After exclusion of participants who developed prodromal AD or incident dementia, the group with an FHxAD and APOE epsilon4 declined much less during the 7-year study (-1.54; 95% CI, -2.59 to -0.50). CONCLUSIONS: Much of the association among FHxAD, APOE epsilon4, and cognitive decline may be attributed to undetected incipient (latent) disease. In the absence of latent disease, the 2 factors do not appear individually to be associated with cognitive decline, although they may be additive.
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16.
  • Mielke, Michelle M., et al. (författare)
  • The 32-year relationship between cholesterol and dementia from midlife to late life.
  • 2010
  • Ingår i: Neurology. - 0028-3878. ; 75:21, s. 1888-95
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Cellular and animal studies suggest that hypercholesterolemia contributes to Alzheimer disease (AD). However, the relationship between cholesterol and dementia at the population level is less clear and may vary over the lifespan. Methods: The Prospective Population Study of Women, consisting of 1,462 women without dementia aged 38–60 years, was initiated in 1968–1969 in Gothenburg, Sweden. Follow-ups were conducted in 1974–1975, 1980–1981, 1992–1993, and 2000–2001. All-cause dementia was diagnosed according to DSM-III-R criteria and AD according to National Institute of Neurological and Communicative Disorders and Stroke–Alzheimer's Disease and Related Disorders Association criteria. Cox proportional hazards regression examined baseline, time-dependent, and change in cholesterol levels in relation to incident dementia and AD among all participants. Analyses were repeated among participants who survived to the age of 70 years or older and participated in the 2000–2001 examination. Results: Higher cholesterol level in 1968 was not associated with an increased risk of AD (highest vs lowest quartile: hazard ratio [HR] 2.82, 95% confidence interval [CI] 0.94–8.43) among those who survived to and participated in the 2000–2001 examination. While there was no association between cholesterol level and dementia when considering all participants over 32 years, a time-dependent decrease in cholesterol over the follow-up was associated with an increased risk of dementia (HR 2.35, 95% CI 1.22–4.58). Conclusion: These data suggest that midlife cholesterol level is not associated with an increased risk of AD. However, there may be a slight risk among those surviving to an age at risk for dementia. Declining cholesterol levels from midlife to late life may better predict AD risk than levels obtained at one timepoint prior to dementia onset. Analytic strategies examining this and other risk factors across the lifespan may affect interpretation of results.
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17.
  • Norton, Maria C, et al. (författare)
  • Church attendance and new episodes of major depression in a community study of older adults: the Cache County Study.
  • 2008
  • Ingår i: The journals of gerontology. Series B, Psychological sciences and social sciences. - 1079-5014. ; 63:3
  • Tidskriftsartikel (refereegranskat)abstract
    • We examined the relation between church attendance, membership in the Church of Jesus Christ of Latter-Day Saints (LDS), and major depressive episode, in a population-based study of aging and dementia in Cache County, Utah. Participants included 2,989 nondemented individuals aged between 65 and 100 years who were interviewed initially in 1995 to 1996 and again in 1998 to 1999. LDS church members reported twice the rate of major depression that non-LDS members did (odds ratio = 2.56, 95% confidence interval = 1.07-6.08). Individuals attending church weekly or more often had a significantly lower risk for major depression. After controlling for demographic and health variables and the strongest predictor of future episodes of depression, a prior depression history, we found that church attendance more often than weekly remained a significant protectant (odds ratio = 0.51, 95% confidence interval = 0.28-0.92). Results suggest that there may be a threshold of church attendance that is necessary for a person to garner long-term protection from depression. We discuss sociological factors relevant to LDS culture.
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19.
  • Norton, Maria C, et al. (författare)
  • Three-year incidence of first-onset depressive syndrome in a population sample of older adults: the Cache County study.
  • 2006
  • Ingår i: Am J Geriatr Psychiatry. - 1064-7481. ; 14:3, s. 237-45
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Estimates of incidence of late-life depression vary greatly with few studies excluding demented cases through in-depth evaluation and most studies failing to control for the effect of mortality and interval treatment. In a large population-based study, the authors examined the effect on incidence of first-onset depressive syndrome to determine whether any gender or age differences in incidence are attenuated with inclusion of these additional measures. METHOD: Incidence rates of depressive syndrome per 1,000 person-years are presented for 2,877 nondemented elderly (ages 65 to 100 years) residents of Cache County, Utah. Cases are identified by direct interview methods, by inference from prescription antidepressant medicine use, and by postmortem informant interview for decedents. RESULTS: In-person interviews yielded incidence rates of first-onset depressive disorder (any type) of 13.09 for men and 19.44 for women. Inclusion of antidepressant users increased these figures to 15.55 for men and 23.30 for women. Addition of postmortem interview data yielded rates of 20.66 for men and 26.29 for women. Individuals with no history of depression had rates for major depression of 7.88 for men and 8.75 for women; minor depression rates were 19.23 for men and 24.46 for women (p = 0.691; effect for minor depression p <0.0001). Age did not predict incidence. CONCLUSIONS: Incidence of first-onset major depression varies with data source and prior lifetime history of depression. Gender effects apparent in interview data are attenuated when postmortem information and pharmacotherapy were considered.
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20.
  • Zandi, Peter P, et al. (författare)
  • Reduced risk of Alzheimer disease in users of antioxidant vitamin supplements: the Cache County Study.
  • 2004
  • Ingår i: Archives of neurology. - : American Medical Association (AMA). - 0003-9942. ; 61:1, s. 82-8
  • Tidskriftsartikel (refereegranskat)abstract
    • BACKGROUND: Antioxidants may protect the aging brain against oxidative damage associated with pathological changes of Alzheimer disease (AD). OBJECTIVE: To examine the relationship between antioxidant supplement use and risk of AD. DESIGN: Cross-sectional and prospective study of dementia. Elderly (65 years or older) county residents were assessed in 1995 to 1997 for prevalent dementia and AD, and again in 1998 to 2000 for incident illness. Supplement use was ascertained at the first contact. SETTING: Cache County, Utah. PARTICIPANTS: Among 4740 respondents (93%) with data sufficient to determine cognitive status at the initial assessment, we identified 200 prevalent cases of AD. Among 3227 survivors at risk, we identified 104 incident AD cases at follow-up. MAIN OUTCOME MEASURE: Diagnosis of AD by means of multistage assessment procedures. RESULTS: Analyses of prevalent and incident AD yielded similar results. Use of vitamin E and C (ascorbic acid) supplements in combination was associated with reduced AD prevalence (adjusted odds ratio, 0.22; 95% confidence interval, 0.05-0.60) and incidence (adjusted hazard ratio, 0.36; 95% confidence interval, 0.09-0.99). A trend toward lower AD risk was also evident in users of vitamin E and multivitamins containing vitamin C, but we saw no evidence of a protective effect with use of vitamin E or vitamin C supplements alone, with multivitamins alone, or with vitamin B-complex supplements. CONCLUSIONS: Use of vitamin E and vitamin C supplements in combination is associated with reduced prevalence and incidence of AD. Antioxidant supplements merit further study as agents for the primary prevention of AD.
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