BackgroundDespite the emerging clinical relevance of heart rate variability (HRV) as a potential ... more BackgroundDespite the emerging clinical relevance of heart rate variability (HRV) as a potential biomarker of cognitive decline and as a candidate target for intervention, there is a dearth of research on the prospective relationship between HRV and cognitive change. In particular, no study has addressed this issue in subjects with a diagnosis of cognitive status including cognitive impairment.ObjectiveTo investigate HRV as a predictor of cognitive decline in subjects with normal cognition (NC) or Mild Cognitive Impairment (MCI). Specifically, we tested the literature-based hypothesis that the HRV response to different physical challenges would predict decline in different cognitive domains.MethodsThis longitudinal study represents the approximately 3-year follow-up of a previous cross-sectional study enrolling 80 older outpatients (aged ≥ 65). At baseline, power spectral analysis of HRV was performed on five-minute electrocardiographic recordings at rest and during a sympathetic (a...
The line between vascular dementia (VaD) and Alzheimer's disease (AD) is often blurred. In th... more The line between vascular dementia (VaD) and Alzheimer's disease (AD) is often blurred. In this study we investigated whether adenosine A2A receptor (A2AR) expression can be used to differentiate between VaD and AD. We evaluated the expression of this receptor in the peripheral blood mononuclear cells of patients with VaD, mild cognitive impairment, AD, and controls. We found statistically significant lower levels of A2AR mRNA in VaD compared to AD subjects. These data suggest that A2AR expression may help in the differential diagnosis between VaD and AD.
Background Socially desirable responding is a potentially relevant issue in older adults and can ... more Background Socially desirable responding is a potentially relevant issue in older adults and can be evaluated with the Marlowe-Crowne Social Desirability Scale (MCSDS). However, the eight-item MCSDS has never been specifically administered to geriatric subjects, and there is a dearth of literature on the relationship between social desirability and cognitive impairment. Also, the connection between social desirability and subjective measures of psychological well-being is a matter of controversy. This study has three main aims. First, to determine the psychometric properties of the eight-item MCSDS in geriatric outpatients without dementia (i.e. with normal cognition (NC) or mild cognitive impairment (MCI)). Second, to investigate the link between social desirability and cognitive functioning. Third, to determine the association between social desirability and the assessment of self-reported mental health. Methods Community-dwelling outpatients (aged ≥ 65) were consecutively recruit...
Objective: The frailty syndrome is associated with adverse clinical outcomes independently of cog... more 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 Alzheimer's 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.
Objective: The frailty syndrome is associated with adverse clinical outcomes independently of cog... more 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 Alzheimer's 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.
Background Complex interventions to improve compliance to pharmacological treatment in older peop... more Background Complex interventions to improve compliance to pharmacological treatment in older people have given mixed results and are not easily applicable in clinical practice. The aim of this study was to test the short-term efficacy on self-reported medication adherence of an easy intervention in which the patient or caregiver was asked to transcribe the pharmacological treatment while it was dictated to him/her by the doctor. Methods Pilot non-randomised controlled trial involving 108 community-dwelling outpatients aged 65+ (54 in the intervention arm, 54 controls) referred to a geriatric service from May to July 2009 and prescribed by the geriatrician a change in therapy. The intervention was applied at the end of the visit to the person managing the medications, be it the elder or his/her caregiver. Outcome of the study was the occurrence of any adherence error, assessed at a one-month follow-up by means of a semi-structured interview. Results The socio-demographic, functional and clinical characteristics of the two compared groups were similar at baseline. At a one-month follow-up 43 subjects (40%) had made at least one adherence error, whether unintentional or intentional. In the intervention group the prevalence of adherence errors was lower than in controls (20% vs 59%; adjusted odds ratio 0.16, 95% confidence interval 0.07 - 0.39; p < 0.001) after adjusting for the person managing the medications, the adherence errors at baseline and for the number of prescribed drugs. Conclusions In an older outpatient population the intervention considered was effective in reducing the prevalence of adherence errors in the month following the visit. Trial registration Australian and New Zealand Clinical Trials Register (ANZCTR): ACTRN12611000347965
American Journal of Alzheimers Disease and Other Dementias, 2011
The aim of this retrospective study was to investigate the accuracy of informant reports on cogni... more The aim of this retrospective study was to investigate the accuracy of informant reports on cognitive status in mild cognitive impairment (MCI) by comparing the subjective evaluation made by patients&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; relatives with the objective results of neuropsychological assessment. We enrolled 119 MCI outpatients and their relatives. Cognitive impairment was assessed by a battery of standardized neuropsychological tests. Informant reports on cognitive functioning were obtained by means of a structured interview. Subjective and objective evaluations of cognitive status were rated according to the same scoring system in order to enable comparison. All but one relative reported cognitive dysfunctions at the interview, but the kind of cognitive profile emerging from their reports was quite different from the one highlighted by neuropsychological assessment. A subjective evaluation of cognitive status based on informant reports could therefore be useful to identify patients with MCI but is unable to define MCI subtypes.
Objective: To determine the main social, functional and clinical characteristics of community-dwe... more 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. Student's 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.
The aim of this prospective study was to evaluate the correlation between the self-perceived qual... more The aim of this prospective study was to evaluate the correlation between the self-perceived quality of private personal care for elderly people living at home and the 1-year risk of hospital admission, nursing home placement and death. We enrolled 100 community-dwelling elderly outpatients (mean age 85 years), who had been receiving private personal care for any kind of disability for at least 1 month. Quality of care was described by both the elderly person without overt cognitive impairment and their informal caregivers, and this was categorised for analysis as ‘poor or fair’ or ‘optimal or intermediate’. Rates of hospital admission, long-term care placement and death were assessed at a 1-year follow-up, between May 2006 and January 2008. One year after enrolment, 67 elderly people were still living at home, 10 had been institutionalised and 23 had died. Forty-six had experienced at least one hospital admission. The elderly people belonging to the ‘poor or fair care’ group (n = 16) showed a higher risk of nursing home placement when compared to the people belonging to the ‘optimal or intermediate care’ group (n = 84) (relative risk = 5.25, 95% confidence interval 1.72–16.06), without there being any significant difference between the two groups in terms of baseline assessment and basic functional status at follow-up. The quality of personal care was not a predictor of either hospital admission or death. Therefore, a poor or fair quality of personal care turned out to be a 1-year predictor of placement in a long-term care facility for community-dwelling older adults with a disability.
BackgroundDespite the emerging clinical relevance of heart rate variability (HRV) as a potential ... more BackgroundDespite the emerging clinical relevance of heart rate variability (HRV) as a potential biomarker of cognitive decline and as a candidate target for intervention, there is a dearth of research on the prospective relationship between HRV and cognitive change. In particular, no study has addressed this issue in subjects with a diagnosis of cognitive status including cognitive impairment.ObjectiveTo investigate HRV as a predictor of cognitive decline in subjects with normal cognition (NC) or Mild Cognitive Impairment (MCI). Specifically, we tested the literature-based hypothesis that the HRV response to different physical challenges would predict decline in different cognitive domains.MethodsThis longitudinal study represents the approximately 3-year follow-up of a previous cross-sectional study enrolling 80 older outpatients (aged ≥ 65). At baseline, power spectral analysis of HRV was performed on five-minute electrocardiographic recordings at rest and during a sympathetic (a...
The line between vascular dementia (VaD) and Alzheimer's disease (AD) is often blurred. In th... more The line between vascular dementia (VaD) and Alzheimer's disease (AD) is often blurred. In this study we investigated whether adenosine A2A receptor (A2AR) expression can be used to differentiate between VaD and AD. We evaluated the expression of this receptor in the peripheral blood mononuclear cells of patients with VaD, mild cognitive impairment, AD, and controls. We found statistically significant lower levels of A2AR mRNA in VaD compared to AD subjects. These data suggest that A2AR expression may help in the differential diagnosis between VaD and AD.
Background Socially desirable responding is a potentially relevant issue in older adults and can ... more Background Socially desirable responding is a potentially relevant issue in older adults and can be evaluated with the Marlowe-Crowne Social Desirability Scale (MCSDS). However, the eight-item MCSDS has never been specifically administered to geriatric subjects, and there is a dearth of literature on the relationship between social desirability and cognitive impairment. Also, the connection between social desirability and subjective measures of psychological well-being is a matter of controversy. This study has three main aims. First, to determine the psychometric properties of the eight-item MCSDS in geriatric outpatients without dementia (i.e. with normal cognition (NC) or mild cognitive impairment (MCI)). Second, to investigate the link between social desirability and cognitive functioning. Third, to determine the association between social desirability and the assessment of self-reported mental health. Methods Community-dwelling outpatients (aged ≥ 65) were consecutively recruit...
Objective: The frailty syndrome is associated with adverse clinical outcomes independently of cog... more 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 Alzheimer's 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.
Objective: The frailty syndrome is associated with adverse clinical outcomes independently of cog... more 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 Alzheimer's 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.
Background Complex interventions to improve compliance to pharmacological treatment in older peop... more Background Complex interventions to improve compliance to pharmacological treatment in older people have given mixed results and are not easily applicable in clinical practice. The aim of this study was to test the short-term efficacy on self-reported medication adherence of an easy intervention in which the patient or caregiver was asked to transcribe the pharmacological treatment while it was dictated to him/her by the doctor. Methods Pilot non-randomised controlled trial involving 108 community-dwelling outpatients aged 65+ (54 in the intervention arm, 54 controls) referred to a geriatric service from May to July 2009 and prescribed by the geriatrician a change in therapy. The intervention was applied at the end of the visit to the person managing the medications, be it the elder or his/her caregiver. Outcome of the study was the occurrence of any adherence error, assessed at a one-month follow-up by means of a semi-structured interview. Results The socio-demographic, functional and clinical characteristics of the two compared groups were similar at baseline. At a one-month follow-up 43 subjects (40%) had made at least one adherence error, whether unintentional or intentional. In the intervention group the prevalence of adherence errors was lower than in controls (20% vs 59%; adjusted odds ratio 0.16, 95% confidence interval 0.07 - 0.39; p < 0.001) after adjusting for the person managing the medications, the adherence errors at baseline and for the number of prescribed drugs. Conclusions In an older outpatient population the intervention considered was effective in reducing the prevalence of adherence errors in the month following the visit. Trial registration Australian and New Zealand Clinical Trials Register (ANZCTR): ACTRN12611000347965
American Journal of Alzheimers Disease and Other Dementias, 2011
The aim of this retrospective study was to investigate the accuracy of informant reports on cogni... more The aim of this retrospective study was to investigate the accuracy of informant reports on cognitive status in mild cognitive impairment (MCI) by comparing the subjective evaluation made by patients&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; relatives with the objective results of neuropsychological assessment. We enrolled 119 MCI outpatients and their relatives. Cognitive impairment was assessed by a battery of standardized neuropsychological tests. Informant reports on cognitive functioning were obtained by means of a structured interview. Subjective and objective evaluations of cognitive status were rated according to the same scoring system in order to enable comparison. All but one relative reported cognitive dysfunctions at the interview, but the kind of cognitive profile emerging from their reports was quite different from the one highlighted by neuropsychological assessment. A subjective evaluation of cognitive status based on informant reports could therefore be useful to identify patients with MCI but is unable to define MCI subtypes.
Objective: To determine the main social, functional and clinical characteristics of community-dwe... more 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. Student's 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.
The aim of this prospective study was to evaluate the correlation between the self-perceived qual... more The aim of this prospective study was to evaluate the correlation between the self-perceived quality of private personal care for elderly people living at home and the 1-year risk of hospital admission, nursing home placement and death. We enrolled 100 community-dwelling elderly outpatients (mean age 85 years), who had been receiving private personal care for any kind of disability for at least 1 month. Quality of care was described by both the elderly person without overt cognitive impairment and their informal caregivers, and this was categorised for analysis as ‘poor or fair’ or ‘optimal or intermediate’. Rates of hospital admission, long-term care placement and death were assessed at a 1-year follow-up, between May 2006 and January 2008. One year after enrolment, 67 elderly people were still living at home, 10 had been institutionalised and 23 had died. Forty-six had experienced at least one hospital admission. The elderly people belonging to the ‘poor or fair care’ group (n = 16) showed a higher risk of nursing home placement when compared to the people belonging to the ‘optimal or intermediate care’ group (n = 84) (relative risk = 5.25, 95% confidence interval 1.72–16.06), without there being any significant difference between the two groups in terms of baseline assessment and basic functional status at follow-up. The quality of personal care was not a predictor of either hospital admission or death. Therefore, a poor or fair quality of personal care turned out to be a 1-year predictor of placement in a long-term care facility for community-dwelling older adults with a disability.
Uploads
Papers by paola nicolini