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Sökning: WFRF:(Kivipelto Miia)

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1.
  • Imtiaz, Bushra, et al. (författare)
  • Oophorectomy, Hysterectomy, and Risk of Alzheimer's Disease : A Nationwide Case-Control Study
  • 2014
  • Ingår i: Journal of Alzheimer's Disease. - 1387-2877 .- 1875-8908. ; 42:2, s. 575-581
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Association between oophorectomy and/or hysterectomy and dementia in context of hormone therapy (HT) use is ambiguous. Objective: To assess whether oophorectomy, hysterectomy, and hysterectomy with bilateral oophorectomy are related to risk of Alzheimer's disease (AD), whether the possible indication for surgery plays a role, and if the associations are modified by HT. Methods: Our nationwide register based case-control (1 : 1) study included all women with clinically-verified AD diagnoses, residing in Finland on December 31, 2005 (n of cases = 19,043, n of controls = 19,043). AD cases, diagnosed according to NINCS-ADRDA and the DSM-IV criteria, were identified from Special Reimbursement Register. Information on HT use was collected from national prescription register, and data on surgery and uterine/ovarian/cervical cancer were obtained from the hospital discharge register. Most of the women (91.8%) were over 51 years of age when the surgery was performed. Results: Oophorectomy, hysterectomy, and hysterectomy with bilateral oophorectomy were associated with lower risk of AD (OR/95% CI: 0.85/0.75-0.97, 0.89/0.81-0.97 and 0.85/0.75-0.98, respectively) among women without the history of uterine/ovarian/cervical cancer, although the absolute risk difference was small. The association was not evident in women with uterine/ovarian/cervical cancer history (3.00 /0.20-44.87 for all surgeries). The associations were not modified by HT use, which was independently associated with AD risk, with longer use showing protective association. Conclusion: Our findings indicate that oophorectomy with or without hysterectomy after commencement of natural menopause is not an important determinant of AD risk in older age and support the critical window hypothesis for HT use.
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2.
  • Adedeji, Dickson O., et al. (författare)
  • Longitudinal study of Alzheimer's disease biomarkers, allostatic load, and cognition among memory clinic patients
  • 2023
  • Ingår i: Brain, Behavior, and Immunity - Health. - : Elsevier. - 2666-3546. ; 28
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Allostatic load (AL) is defined as the cumulative dysregulation of neuroendocrine, immunological, metabolic, and cardiovascular systems that increases the susceptibility to stress-related health problems. Several dementia and Alzheimer's disease (AD) risk factors have been identified, yet little is known about the role of AL and its associations with AD biomarkers (e.g., beta-amyloid (Aβ) or tau) and cognitive function among memory clinic patients. Hence, this study aims to assess the association between AL and AD biomarkers, cognitive performance, and cognitive decline after 3-years of follow-up.Methods: Data from 188 memory clinic patients were derived from the Cortisol and Stress in AD (Co-STAR) study in Sweden. Participants underwent baseline assessments including blood tests for AL measures (including cortisol, thyroid stimulating hormone, cobalamin, homocysteine, leukocytes, glycated hemoglobin, albumin, high-density and low-density lipoprotein cholesterol, triglycerides, and creatinine), cerebrospinal fluid (CSF) sampling for AD biomarkers and neuropsychological tests including five cognitive domains. Linear regressions were conducted, adjusting for age, sex, and education.Results: Higher AL was associated with lower CSF Aβ1-42 levels (β = −0.175, p = 0.025), reflecting higher brain levels of Aβ1-42. Stratified analyses suggested a significant association among women but not men, although the AL-sex interaction was not statistically significant. AL was not significantly associated with T-tau level (β = −0.030, p = 0.682) and P-tau level (β = 0.091, p = 0.980). There were no significant associations between AL and cognition or cognitive decline after 3 years.Conclusion: This study showed that higher AL was associated with increased brain amyloid accumulation. This suggests that AL may play a role in AD/dementia pathophysiology. Potential sex-related differences should be assessed in further larger studies.
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3.
  • Akenine, Ulrika, et al. (författare)
  • Attitudes of at-risk older adults about prevention of cardiovascular disease and dementia using eHealth : a qualitative study in a European context
  • 2020
  • Ingår i: BMJ Open. - 2044-6055. ; 10:8
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives Prevention of cardiovascular disease (CVD) and dementia is a key health priority among older adults. Understanding individuals’ attitudes to, the prevention of these conditions, particularly when delivered through novel eHealth tools, could help in designing effective prevention programmes. The aim of the study was to explore the attitudes of older adults at increased risk of CVD and dementia regarding engagement in eHealth self-management prevention programmes, and to describe the facilitators and barriers.Design A qualitative research approach was used. Data were collected through eight focus groups in Finland, France and the Netherlands. Data were analysed following the principles of grounded theory.Setting and participants Forty-four community-dwellers aged 65+ at risk of CVD were recruited from a previous trial cohort in Finland, and through general practices in France and the Netherlands.Results The study identified three categories: access to reliable information, trust in the healthcare providers and burden and stigma of dementia. A core category was also identified: the interactive process of the three categories influencing engagement in self-management prevention programme. The categories were interconnected through an interactive process and influenced by the local healthcare culture and context which shaped them differently, becoming either facilitators or barriers to engage in eHealth self-management prevention programmes.Conclusions The study emphasises the importance of considering the interactions between the identified categories in this study, grounded in the local healthcare culture and context in further developments of eHealth self-management interventions that aim to prevent CVD and dementia.
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4.
  • Aspö, Malin, et al. (författare)
  • Transitions : Experiences of younger persons recently diagnosed with Alzheimer-type dementia
  • 2023
  • Ingår i: Dementia. - : Sage Publications. - 1471-3012 .- 1741-2684. ; 22:3, s. 610-627
  • Tidskriftsartikel (refereegranskat)abstract
    • Receiving a diagnosis of dementia before the age of 65 has a huge impact on everyday life. Previously, the disease trajectory has mainly been described from the perspective of older persons. However, young persons with dementia are confronted with specific challenges, influencing the type of life-changing events, or 'critical points' that they may experience. The aim of this study was therefore to describe experiences of persons recently being diagnosed with young-onset dementia. In total, 14 participants with dementia due to Alzheimer's disease (10 woman/4 men) with an average age of 59 were included in the study. Interviews were conducted within 2 months after receiving the diagnosis and analyzed using qualitative content analysis with an inductive approach, resulting in three categories: (1) A life changing moment, (2) An ongoing process, and (3) Remaining in control. The findings show that receiving such a diagnosis was experienced by participants as a life changing moment, followed by them seeking to come to terms with the diagnosis and reflecting on its meaning, in which various strategies were adopted to remain in control. The current study highlights three critical points considering the diagnosis of young-onset dementia that warrant special attention and provides insight into factors related to delay in healthy transitioning after receiving the diagnosis, as well as factors that may facilitate successful transitions.
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5.
  • Ballin, Marcel, et al. (författare)
  • Excess Mortality After COVID-19 in Swedish Long-Term Care Facilities
  • 2021
  • Ingår i: Journal of the American Medical Directors Association. - : Elsevier. - 1525-8610 .- 1538-9375. ; 22:8, s. 1574-1580.e8
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To compare 30-day mortality in long-term care facility (LTCF) residents with and without COVID-19 and to investigate the impact of 31 potential risk factors for mortality in COVID-19 cases.Design: Retrospective cohort study.Setting and Participants: All residents of LTCFs registered in Senior Alert, a Swedish national database of health examinations in older adults, during 2019-2020.Methods: We selected residents with confirmed COVID-19 until September 15, 2020, along with time-dependent propensity score–matched controls without COVID-19. Exposures were COVID-19, age, sex, comorbidities, medications, and other patient characteristics. The outcome was all-cause 30-day mortality.Results: A total of 3731 residents (median age 87 years, 64.5% female) with COVID-19 were matched to 3731 controls without COVID-19. Thirty-day mortality was 39.9% in COVID-19 cases and 5.7% in controls [relative risk 7.05, 95% confidence interval (CI) 6.10-8.14]. In COVID-19 cases, the odds ratio (OR) for 30-day mortality was 2.44 (95% CI 1.57-3.81) in cases aged 80-84 years, 2.99 (95% CI 1.93-4.65) in cases aged 85-89 years, and 3.28 (95% CI 2.11-5.10) in cases aged ≥90 years, as compared with cases aged <70 years. Other risk factors for mortality among COVID-19 cases included male sex (OR, 2.60, 95% CI 2.22-3.05), neuropsychological conditions (OR, 2.18; 95% CI 1.76-2.71), impaired walking ability (OR, 1.45, 95% CI 1.17-1.78), urinary and bowel incontinence (OR 1.51, 95% CI 1.22-1.85), diabetes (OR 1.36, 95% CI 1.14-1.62), chronic kidney disease (OR 1.37, 95% CI 1.11-1.68) and previous pneumonia (OR 1.57, 95% CI 1.32-1.85). Nutritional factors, cardiovascular diseases, and antihypertensive medications were not significantly associated with mortality.Conclusions and Implications: In Swedish LTCFs, COVID-19 was associated with a large excess in mortality after controlling for an extensive number of risk factors. Beyond older age and male sex, several prevalent clinical risk factors independently contributed to higher mortality. These findings suggest that reducing transmission of COVID-19 in LTCFs will likely prevent a considerable number of deaths.
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6.
  • Ballin, Marcel, et al. (författare)
  • Time-varying risk of death after SARS-CoV-2 infection in Swedish long-term care facility residents: a matched cohort study
  • 2022
  • Ingår i: BMJ Open. - : BMJ Publishing Group Ltd. - 2044-6055. ; 12:11
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVES: To evaluate whether SARS-CoV-2 infection in residents of long-term care (LTC) facilities is associated with higher mortality after the acute phase of infection, and to estimate survival in uninfected residents.DESIGN: Extended follow-up of a previous, propensity score-matched, retrospective cohort study based on the Swedish Senior Alert register.SETTING: LTC facilities in Sweden.PARTICIPANTS: n=3604 LTC residents with documented SARS-CoV-2 until 15 September 2020 matched to 3604 uninfected controls using time-dependent propensity scores on age, sex, health status, comorbidities, prescription medications, geographical region and Senior Alert registration time. In a secondary analysis (n=3731 in each group), geographical region and Senior Alert registration time were not matched for in order to increase the follow-up time in controls and allow for an estimation of median survival.PRIMARY OUTCOME MEASURES: All-cause mortality until 24 October 2020, tracked using the National Cause of Death Register.RESULTS: Median age was 87 years and 65% were women. Excess mortality peaked at 5 days after documented SARS-CoV-2-infection (HR 21.5, 95% CI 15.9 to 29.2), after which excess mortality decreased. From the second month onwards, mortality rate became lower in infected residents than controls. The HR for death during days 61-210 of follow-up was 0.76 (95% CI 0.62 to 0.93). The median survival of uninfected controls was 1.6 years, which was much lower than the national life expectancy in Sweden at age 87 (5.05 years in men, 6.07 years in women).CONCLUSIONS: The risk of death after SARS-CoV-2 infection in LTC residents peaked after 5 days and decreased after 2 months, probably because the frailest residents died during the acute phase, leaving healthier residents remaining. The limited life expectancy in this population suggests that LTC resident status should be accounted for when estimating years of life lost due to COVID-19.
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7.
  • Barbera, Mariagnese, et al. (författare)
  • A multimodal precision-prevention approach combining lifestyle intervention with metformin repurposing to prevent cognitive impairment and disability: the MET-FINGER randomised controlled trial protocol
  • 2024
  • Ingår i: Alzheimer's Research & Therapy. - : BioMed Central Ltd. - 1758-9193. ; 16:1
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Combining multimodal lifestyle interventions and disease-modifying drugs (novel or repurposed) could provide novel precision approaches to prevent cognitive impairment. Metformin is a promising candidate in view of the well-established link between type 2 diabetes (T2D) and Alzheimer’s Disease and emerging evidence of its potential neuro-protective effects (e.g. vascular, metabolic, anti-senescence). MET-FINGER aims to test a FINGER 2.0 multimodal intervention, combining an updated FINGER multidomain lifestyle intervention with metformin, where appropriate, in an APOE ε4-enriched population of older adults (60–79 years) at increased risk of dementia. Methods: MET-FINGER is an international randomised, controlled, parallel-group, phase-IIb proof-of-concept clinical trial, where metformin is included through a trial-within-trial design. 600 participants will be recruited at three sites (UK, Finland, Sweden). Participants at increased risk of dementia based on vascular risk factors and cognitive screening, will be first randomised to the FINGER 2.0 intervention (lifestyle + metformin if eligible; active arm) or to receive regular health advice (control arm). Participants allocated to the FINGER 2.0 intervention group at risk indicators of T2D will be additionally randomised to receive metformin (2000 mg/day or 1000 mg/day) or placebo. The study duration is 2 years. The changes in global cognition (primary outcome, using a Neuropsychological Test Battery), memory, executive function, and processing speed cognitive domains; functional status; lifestyle, vascular, metabolic, and other dementia-related risk factors (secondary outcomes), will be compared between the FINGER 2.0 intervention and the control arm. The feasibility, potential interaction (between-groups differences in healthy lifestyle changes), and disease-modifying effects of the lifestyle-metformin combination will be exploratory outcomes. The lifestyle intervention is adapted from the original FINGER trial (diet, physical activity, cognitive training, monitoring of cardiovascular/metabolic risk factors, social interaction) to be consistently delivered in three countries. Metformin is administered as Glucophage®XR/SR 500, (500 mg oral tablets). The metformin/placebo treatment will be double blinded. Conclusion: MET-FINGER is the first trial combining a multimodal lifestyle intervention with a putative repurposed disease-modifying drug for cognitive impairment prevention. Although preliminary, its findings will provide crucial information for innovative precision prevention strategies and form the basis for a larger phase-III trial design and future research in this field. Trial registration: ClinicalTrials.gov (NCT05109169).
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8.
  • Barbera, Mariagnese, et al. (författare)
  • Designing an Internet-Based Multidomain Intervention for the Prevention of Cardiovascular Disease and Cognitive Impairment in Older Adults : The HATICE Trial
  • 2018
  • Ingår i: Journal of Alzheimer's Disease. - 1387-2877 .- 1875-8908. ; 62:2, s. 649-663
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Many dementia and cardiovascular disease (CVD) cases in older adults are attributable to modifiable vascular and lifestyle-related risk factors, providing opportunities for prevention. In the Healthy Aging Through Internet Counselling in the Elderly (HATICE) randomized controlled trial, an internet-based multidomain intervention is being tested to improve the cardiovascular risk (CVR) profile of older adults. Objective: To design a multidomain intervention to improve CVR, based on the guidelines for CVR management, and administered through a coach-supported, interactive, platform to over 2500 community-dwellers aged 65+ in three European countries. Methods: A comparative analysis of national and European guidelines for primary and secondary CVD prevention was performed. Results were used to define the content of the intervention. Results: The intervention design focused on promoting awareness and self-management of hypertension, dyslipidemia, diabetes mellitus, and overweight, and supporting smoking cessation, physical activity, and healthy diet. Overall, available guidelines lacked specific recommendations for CVR management in older adults. The comparative analysis of the guidelines showed general consistency for lifestyle-related recommendations. Key differences, identified mostly in methods used to assess the overall CVR, did not hamper the intervention design. Minor country-specific adaptations were implemented to maximize the intervention feasibility in each country. Conclusion: Despite differences inCVRmanagement within the countries considered, itwas possible to design and implement the HATICE multidomain intervention. The study can help define preventative strategies for dementia and CVD that are applicable internationally.
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9.
  • Beishuizen, Cathrien R. L., et al. (författare)
  • Web-Based Interventions Targeting Cardiovascular Risk Factors in Middle-Aged and Older People : A Systematic Review and Meta-Analysis
  • 2016
  • Ingår i: Journal of Medical Internet Research. - : JMIR Publications Inc.. - 1438-8871. ; 18:3
  • Forskningsöversikt (refereegranskat)abstract
    • Background: Web-based interventions can improve single cardiovascular risk factors in adult populations. In view of global aging and the associated increasing burden of cardiovascular disease, older people form an important target population as well.Objective: In this systematic review and meta-analysis, we evaluated whether Web-based interventions for cardiovascular risk factor management reduce the risk of cardiovascular disease in older people.Methods: Embase, Medline, Cochrane and CINAHL were systematically searched from January 1995 to November 2014. Search terms included cardiovascular risk factors and diseases (specified), Web-based interventions (and synonyms) and randomized controlled trial. Two authors independently performed study selection, data-extraction and risk of bias assessment. In a meta-analysis, outcomes regarding treatment effects on cardiovascular risk factors (blood pressure, glycated hemoglobin A1c (HbA1C), low-density lipoprotein (LDL) cholesterol, smoking status, weight and physical inactivity) and incident cardiovascular disease were pooled with random effects models.Results: A total of 57 studies (N=19,862) fulfilled eligibility criteria and 47 studies contributed to the meta-analysis. A significant reduction in systolic blood pressure (mean difference -2.66 mmHg, 95% CI -3.81 to -1.52), diastolic blood pressure (mean difference -1.26 mmHg, 95% CI -1.92 to -0.60), HbA1c level (mean difference -0.13%, 95% CI -0.22 to -0.05), LDL cholesterol level (mean difference -2.18 mg/dL, 95% CI -3.96 to -0.41), weight (mean difference -1.34 kg, 95% CI -1.91 to -0.77), and an increase of physical activity (standardized mean difference 0.25, 95% CI 0.10-0.39) in the Web-based intervention group was found. The observed effects were more pronounced in studies with short (<12 months) follow-up and studies that combined the Internet application with human support (blended care). No difference in incident cardiovascular disease was found between groups (6 studies).Conclusions: Web-based interventions have the potential to improve the cardiovascular risk profile of older people, but the effects are modest and decline with time. Currently, there is insufficient evidence for an effect on incident cardiovascular disease. A focus on long-term effects, clinical endpoints, and strategies to increase sustainability of treatment effects is recommended for future studies.
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10.
  • Bergman, Jonathan, 1993- (författare)
  • Benefits and harms of Bisphosphonates : an observational study
  • 2022
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Background: Bisphosphonates are first-line treatment for osteoporosis, but osteoporosis is considered an undertreated disease. The general aim of this dissertation was to further study the benefits and harms of bisphosphonates. There were four specific research questions: (1) Do bisphosphonates reduce the risk of new fractures in older adults who have a history of fracture? (2) Do bisphosphonates reduce the risk of fracture in people taking glucocorticoids? (3) Does confounding explain why bisphosphonates are associated with lower mortality in observational studies? (4) Do bisphosphonates increase the risk of non-jaw osteonecrosis?Methods: To answer these questions, we used Swedish register data on deaths, diagnoses, and prescription medications to conduct four matched cohort studies of bisphosphonate users and nonusers. The cohorts were selected from patients registered in the Hip Fracture Register and from all residents of Sweden who were aged 50 years or older on December 31, 2005.Results: (1) Bisphosphonate users had an initially increased risk of sustaining new fractures, which appeared to be due to an underlying high risk of fracture. This increased risk diminished over time, which is consistent with a gradual treatment effect, but it is also consistent with a bias known as depletion of susceptibles. (2) Bisphosphonate users had a lower risk of fracture during glucocorticoid therapy. (3) Bisphosphonate users had a lower mortality rate from day 2 of treatment. Although such an early treatment effect cannot be ruled out, this finding is consistent with confounding. (4) Bisphosphonate users had an increased risk of developing non-jaw osteonecrosis. Conclusion: Most of the results were difficult to interpret as true benefits or harms of bisphosphonates because alternative explanations, arising from bias or confounding, were likely. The exception was the results of Study 2, where alternative explanations are more difficult to find. Therefore, Study 2 suggests that bisphosphonates reduce the risk of fractures in glucocorticoid-treated patients. Further research is needed to clarify the potential effects of bisphosphonates on mortality, non-jaw osteonecrosis, and new fractures after a previous fracture.
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