Alessandra Casè

Older People's Quality of Life (OPQOL) scores and adverse health outcomes at a one-year follow-up. A prospective cohort study on older outpatients living in the community in Italy

BackgroundThere is limited knowledge on the ability of a poor quality of life (QOL) and health-related QOL (HRQOL) to predict mortality and other adverse health events, independently of the frailty syndrome and other confounders, in older people living in the community and not selected on the basis of specific chronic conditions. Aim of this study was to evaluate the ability of the overall QOL and of the HRQOL to predict several adverse health outcomes at a one-year follow-up in an older outpatient population living in the community.MethodsWe carried out a prospective cohort study on 210 community-dwelling outpatients aged 65+ (mean age 81.2 yrs) consecutively referred to a geriatric clinic in Milan, Italy. At baseline participants underwent a comprehensive geriatric assessment including evaluation of overall QOL and HRQOL by means of the Older Peoples Quality of Life (OPQOL) questionnaire. At a one-year follow-up, between June and December 2010, we investigated nursing home placement and death in all 210 participants as well as any fall, any admission to the emergency department (ED), any hospitalisation and greater functional dependence among the subset of subjects still living at home.ResultsOne year after the visit 187 subjects were still living at home (89%) while 7 had been placed in a nursing home (3.3%) and 16 had died (7.7%). At multiple logistic regression analyses the lowest score-based quartile of the OPQOL total score at baseline was independently associated with a greater risk of any fall and any ED admission. Also, the lowest score-based quartile of the health-related OPQOL sub-score was associated with a greater risk of any fall as well as of nursing home placement (odds ratio [OR] 10.03, 95% confidence interval [CI] 1.25-80.54, P = 0.030) and death (OR 4.23, 95% CI 1.06-16.81, P = 0.041). The correlation with the latter two health outcomes was found after correction for age, sex, education, income, living conditions, comorbidity, disability and the frailty syndrome.ConclusionsIn an older outpatient population in Italy the OPQOL total score and its health-related sub-score were independent predictors of several adverse health outcomes at one year. Notably, poor HRQOL predicted both nursing home placement and death even after correction for the frailty syndrome. These findings support and enhance the prognostic relevance of QOL measures.

Frailty syndrome diagnosed according to the Study of Osteoporotic Fractures (SOF) criteria and adverse health outcomes among community-dwelling older outpatients in Italy. A one-year prospective cohort study

The easy-to-apply SOF criteria for frailty were recently validated in studies conducted in the U.S. only. In order to determine the ability of the SOF criteria to predict adverse health outcomes at a one-year follow-up in a sample of older outpatients in Italy we carried out a prospective cohort study on 265 community-dwelling outpatients aged 65+ (mean age 81.5 years) consecutively referred to a geriatric clinic. At baseline participants underwent a comprehensive geriatric assessment (CGA) including evaluation of their frailty status according to the SOF criteria. At a one-year follow-up, between June and December 2010, we investigated nursing home placement and death in all participants as well as any fall, any admission to the emergency department (ED), any hospitalization and a greater disability among the subset of subjects still living at home. One year after the visit 231 subjects were still living at home (87.2%), 9 had been placed in a nursing home (3.4%) and 25 had died (9.4%). Frailty was associated with a greater risk of falls (odds ratio [OR] 2.01, 95% confidence interval [CI] 1.05-3.83, p=0.035), hospitalization (OR 2.08, 95% CI 1.02-4.24, p=0.045) and death (OR 3.07, 95% 1.02-4.24, p=0.045) after correction for demographic characteristics, comorbidity including dementia and depression, socioeconomic position and severe disability. Thus, in an older outpatient population in Italy the frailty syndrome diagnosed according to the SOF criteria was an independent predictor of several adverse health outcomes.

Frailty syndrome diagnosed according to the Study of Osteoporotic Fractures criteria and mortality in older outpatients suffering from Alzheimer's disease: A one-year prospective cohort study

Objective: The frailty syndrome is associated with adverse clinical outcomes independently of cognitive impairment. The recent easy-to-apply Study of Osteoporotic Fractures (SOF) criteria for frailty could be useful to diagnose such syndrome also in Alzheimers disease (AD) patients. The aim of this study was to apply these criteria among AD outpatients in order to determine: (i) the prevalence and correlates of frailty and (ii) the one-year predictors of death in this population. Method: This prospective cohort study enrolled 109 community-dwelling outpatients aged 65+ (median age 84 years) consecutively diagnosed with AD at a geriatric outpatient service in Italy in 2009. At baseline, participants underwent a comprehensive geriatric assessment including the evaluation of frailty status by means of the SOF criteria. Multiple logistic regression analysis was performed to find correlates of frailty. At a one-year follow-up, data on mortality were available for 95 participants and predictors of death were evaluated by means of multiple logistic regression analysis. Results: Most participants had mild (52%) or moderate (29%) dementia. Frailty status was defined for all subjects at baseline: 25 (22%) were robust, 30 (28%) pre-frail and 54 (50%) frail. Independent correlates of frailty were age and dependence in the basic activities of daily living, and in particular in dressing. One year after enrolment, frailty was an independent predictor of death (odds ratio 11.27, 95% confidence interval 1.64–77.72, p = 0.014) after correction for age, sex, dependence in the basic activities of daily living, severity of cognitive impairment and comorbidity. Conclusion: Frailty status was diagnosed according to the SOF criteria in all AD outpatients and it was an independent one-year predictor of death. In order to provide them with appropriate prognostic evaluation and therapeutic advice all AD outpatients, especially those with specific disabilities, could be screened by means of the SOF criteria for frailty.

Social vulnerability, mental health and correlates of frailty in older outpatients living alone in the community in Italy.

Objective: To determine the main social, functional and clinical characteristics of community-dwelling older outpatients living alone and to find correlates of frailty in this population. Method: Cross-sectional survey of 302 community-dwelling outpatients aged 65+ (median age 82 years) consecutively referred to a geriatric medicine clinic in Italy from June to November 2009. Participants underwent a comprehensive geriatric assessment including frailty status evaluated by means of the study of osteoporotic fractures (SOF) criteria. Students t-test and the chi-squared test were used to compare subjects ‘living alone’ and ‘not living alone’ as well as ‘frail’ and ‘not frail’ subjects among the participants living alone. Multiple logistic regression analyses were performed to find independent correlates of frailty among participants living alone. Results: Participants ‘living alone’ were 124 (41%). Compared to subjects ‘not living alone’ (n = 178), they were older, received less assistance from informal and formal caregivers, had poorer living and financial conditions, a better cognitive status and functional self-sufficiency but a worse emotional status. One-third of them (n = 41) were frail. Among frail elders (n = 116), subjects living alone also showed a higher prevalence of unexpected new diagnoses of dementia than those not living alone. Independent correlates of frailty among participants living alone were: having experienced a severe acute disease in the past year (odds ratio [OR] 303.9; 95% confidence interval [CI] 13–7091; p < 0.001), dependence in the bathing BADL ability (OR 62.74; 95% CI 12.17–323.32; p < 0.001), depression (OR 10.43; 95% CI 2.31–47.13; p = 0.002) and incontinence (OR 3.98; 95% CI 1.01–15.66; p = 0.048). Conclusion: In older outpatients living alone, including those who were frail, we found a lower availability of personal assistance, significantly more social and financial vulnerability and a higher risk of depression. In frail elders there was also a higher prevalence of underdiagnosed dementia. In order to better recognise frail subjects in this specific population, four independent correlates of frailty were identified.

Adenosine A2A Receptor and IL-10 in Peripheral Blood Mononuclear Cells of Patients with Mild Cognitive Impairment

Adenosine suppresses immune responses through the A2A receptor (A2AR). This study investigated the interleukin 10 (IL-10) genetic profile and the expression of A2AR in peripheral blood mononuclear cells (PBMCs) of patients with mild cognitive impairment (MCI), Alzheimer disease (AD), and age-matched controls to verify, if they may help distinguish different forms of cognitive decline. We analyzed the IL-10 genotype and the expression of A2AR in 41 subjects with AD, 10 with amnestic MCI (a-MCI), 49 with multiple cognitive domain MCI (mcd-MCI), and 46 controls. There was a significant linear increase in A2AR mRNA levels and A2AR density from mcd-MCI to a-MCI, with intermediate levels being found in AD. The IL-10 AA genotype frequency was 67% in a-MCI, 46% in AD, 35% in mcd-MCI, and 20% in controls. These data suggest that the assessment of the IL-10 genotype and the expression of A2AR in PBMCs may be a valuable means of differentiating between a-MCI and mcd-MCI.

Transcriptional and epigenetic phenomena in peripheral blood cells of monozygotic twins discordant for alzheimer’s disease, a case report

Target genes in Alzheimers disease (AD) have been identified. In monozygotic twins discordant for AD we analysed the expression of selected genes, and their possible regulation by epigenetic mechanisms in peripheral blood mononuclear cells, possibly useful to discover biomarkers. Amyloid precursor protein, sirtuin 1 and peptidyl prolyl isomerase 1 gene expressions were highly up-regulated in the AD twin versus the healthy one. Consistently with sirtuin 1 role in controlling acetylation status, we observed a substantial reduction of the acetylation on histone 3 lysine 9, associated with gene transcription in the AD twin. Noteworthy in the AD twin we also observed an increased gene expression in two histone deacetylases (HDACs) isoforms: HDAC2 and HDAC9. A general DNA hypomethylation of all gene promoters studied was also observed in both twins. Our results unravel transcriptional and epigenetic differences potentially helpful to better understand environmental factors and phenotypic differences in monozygotic twins.

Familial late-onset Alzheimer’s disease: description of an Italian family with four affected siblings and one case of early-onset dementia in the preceding generation

We describe a family composed of six siblings, four of which affected by late-onset Alzheimer’s disease (LOAD). We constructed the family pedigree, evaluated mutations usually associated with early-onset Alzheimer’s disease (APP, PSEN1, PSEN2), and assessed polymorphisms in the apolipoprotein E (APOE) gene and in cytokine genes that we had previously found to be associated with a higher risk of LOAD (IL-10, IL-6, TNF-α). Results showed that all subjects carried one ε4 allele of the APOE gene and those with the earliest age of onset exhibited the AA (-1082) IL-10 and the CC (-174) IL-6 genotypes. The only male had a genetic profile which also included the A (-308) TNF-α allele. These data confirm the role of the APOE gene as genetic risk factor in LOAD, and suggest that the risk of developing AD may be governed by a “susceptibility profile” involving polymorphisms in inflammatory genes.