Geda, Yonas E.

ObjectiveTo evaluate the degree to which longitudinal stability of subsyndromal symptoms of depression (SSD) is associated with conversion to dementia in patients with mild cognitive impairment (MCI).MethodsData from 405 MCI participants from the Alzheimer's Disease Neuroimaging Initiative (ADNI) study were analyzed. Participants were evaluated at baseline and 12‐month intervals over 3 years. Participants were designated as MCI converters if dementia was diagnosed within 3 years or as cognitively stable MCI if dementia was not diagnosed during this interval. SSD were evaluated utilizing the 15‐item Geriatric Depression Scale (GDS). Endorsement of specific SSD at baseline and the stability of SSD over 36 months were compared between the two MCI groups.ResultsBaseline symptom endorsement and stability of total GDS scores did not differentiate MCI groups. Worsening of four individual items from the GDS over time (memory problems, feelings of helplessness, loss of interest, and preference for staying at home) differentiated MCI converters from cognitively stable MCI (p < 0.05 for all). However, only increased endorsement of memory symptoms over time was associated with progression to dementia after controlling for other clinical variables (p = 0.05).ConclusionsSSD in MCI participants largely consist of cognitive symptoms and activity limitations, and the stability of SSD over time differentiated the MCI groups better than baseline endorsement of symptoms. However, the only significant predictor of conversion to dementia was increased endorsement of memory problems, which likely represents insight into cognitive problems more than depressive symptomatology in MCI individuals. Copyright © 2011 John Wiley & Sons, Ltd.

Prevalence of treatable depression is as high as 25% among terminally ill patients. The incidence of antidepressant use was ascertained at the Mayo Hospice Program in Rochester, Minnesota, from June 1, 2007, to December 31, 2008. The 18-month cumulative probability to receive an antidepressant during hospice was estimated at 11.7%. Depression and selective serotonin reuptake inhibitors (SSRIs) were the most common clinical indication and class of antidepressant, respectively. Survival was the main predictor to receive an antidepressant with an odds ratio of 2.71 (95%CI: 1.60-4.60) for each additional day in hospice. Proper diagnostic tools for this population, education about the benefits of antidepressants in palliative care, and clear guidelines about antidepressant class and dosages are needed.

OBJECTIVE To investigate the association of type 2 diabetes with subcortical infarctions. RESEARCH DESIGN AND METHODS We investigated this association in subjects with type 2 diabetes (case subjects; n = 93) and without type 2 diabetes (control subjects; n = 186), matched by age, sex, and years of education. Participants were a subset of the Mayo Clinic Study of Aging (median age 79 years) who had undergone magnetic resonance imaging. RESULTS The frequency of subcortical infarctions was 39% in case subjects and 29% in control subjects (odds ratio 1.59 [95% CI 0.91–2.75]). The association was stronger in case subjects without treatment (2.60 [1.11–6.08]) and in case subjects with diabetes-related complications (1.96 [1.02–3.74]) compared with control subjects. CONCLUSIONS These findings suggest that untreated type 2 diabetes and type 2 diabetes with complications are associated with subcortical infarctions.