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Sökning: WFRF:(Machado Alejandra) > Göteborgs universitet

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1.
  • Dittrich, Anna, 1972, et al. (författare)
  • Association of Chronic Kidney Disease With Plasma NfL and Other Biomarkers of Neurodegeneration: The H70 Birth Cohort Study in Gothenburg.
  • 2023
  • Ingår i: Neurology. - 1526-632X. ; 101:3
  • Tidskriftsartikel (refereegranskat)abstract
    • Studies associate chronic kidney disease (CKD) with neurodegeneration. This study investigated the relationship between kidney function, blood, CSF, and structural brain MRI markers of neurodegeneration in a sample including individuals with and without CKD.Participants from the Gothenburg H70 Birth Cohort Study, with data on plasma neurofilament light (P-NfL), estimated glomerular filtration rate (eGFR), and structural brain MRI were included. Participants were invited to also have the CSF collected. The primary endpoint of this study was to determine any association between CKD and P-NfL. Secondary endpoints included cross-sectional associations between CKD, eGFR, and CSF-derived and MRI-derived markers of neurodegeneration and Alzheimer disease (AD) pathology (MRI: cortical thickness, hippocampal volume, lateral ventricle volume, and white matter lesion volume; CSF: β-amyloid (Aβ) 42, Aβ42/40, Aβ42/p-tau, t-tau, p-tau, and NfL). Participants with P-NfL and eGFR at baseline were re-examined on eGFR, 5.5 (5.3-6.1) years (median; IQR) after the first visit, and the predictive value of P-NfL levels on incident CKD was estimated longitudinally, using a Cox proportional hazards model.We included 744 participants, 668 without CKD (age 71 [70-71] years, 50% males) and 76 with CKD (age 71 [70-71] years, 39% males). Biomarkers from the CSF were analyzed in 313 participants. A total of 558 individuals returned for a re-examination of eGFR (75% response rate, age 76 [76; 77] years, 48% males, 76 new cases of CKD). Participants with CKD had higher P-NfL levels than those with normal kidney function (median; 18.8 vs 14.1 pg/mL, p < 0.001), while MRI and CSF markers were similar between the groups. P-NfL was independently associated with CKD after adjustment for confounding variables, including hypertension and diabetes (OR; 3.231, p < 0.001), in a logistic regression model. eGFR and CSF Aβ 42/40: R = 0.23, p = 0.004 correlated in participants with Aβ42 pathology. P-NfL levels in the highest quartile were associated with incident CKD at follow-up (HR; 2.39 [1.21: 4.72]).In a community-based cohort of 70-year olds, P-NfL was associated with both prevalent and incident CKD, while CSF and/or imaging measures did not differ by CKD status. Participants with CKD and dementia presented similar levels of P-NfL.
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2.
  • Rydberg Sterner, Therese, et al. (författare)
  • The Gothenburg H70 Birth cohort study 2014-16: design, methods and study population.
  • 2019
  • Ingår i: European journal of epidemiology. - : Springer Science and Business Media LLC. - 1573-7284 .- 0393-2990. ; 34:2, s. 191-209
  • Tidskriftsartikel (refereegranskat)abstract
    • To improve health care for older persons, we need to learn more about ageing, e.g. identify protective factors and early markers for diseases. The Gothenburg H70 Birth Cohort Studies (the H70 studies) are multidisciplinary epidemiological studies examining representative birth cohorts of older populations in Gothenburg, Sweden. So far, six birth cohorts of 70-year-olds have been examined over time, and examinations have been virtually identical between studies. This paper describes the study procedures for the baseline examination of the Birth cohort 1944, conducted in 2014-16. In this study, all men and women born 1944 on specific dates, and registered as residents in Gothenburg, were eligible for participation (n=1839). A total of 1203 (response rate 72.2%; 559 men and 644 women; mean age 70.5years) agreed to participate in the study. The study comprised sampling of blood and cerebrospinal fluid, psychiatric, cognitive, and physical health examinations, examinations of genetics and family history, use of medications, social factors, functional ability and disability, physical fitness and activity, body composition, lung function, audiological and ophthalmological examinations, diet, brain imaging, as well as a close informant interview, and qualitative studies. As in previous examinations, data collection serves as a basis for future longitudinal follow-up examinations. The research gained from the H70 studies has clinical relevance in relation to prevention, early diagnosis, clinical course, experience of illness, understanding pathogenesis and prognosis. Results will increase our understanding of ageing and inform service development, which may lead to enhanced quality of care for older persons.
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3.
  • Skillbäck, Tobias, et al. (författare)
  • Sex differences in CSF biomarkers for neurodegeneration and blood-brain barrier integrity.
  • 2021
  • Ingår i: Alzheimer's & dementia. - : Wiley. - 2352-8729. ; 13:1
  • Tidskriftsartikel (refereegranskat)abstract
    • As cerebrospinal fluid (CSF) neurofilament light protein (NfL) and the CSF/serum albumin ratio (QAlb) are used in the clinical routine, the impact of demographic factors on these biomarkers is important to understand.Participants were derived from two Swedish samples: the population-based H70 Study (n = 308, age 70) and a clinical routine cohort (CSF NfL, n = 8995, QAlb, n = 39252, age 0 to 95). In the population-based study, QAlb and NfL were examined in relation to sex, cardiovascular risk factors, and cerebral white matter lesions (WMLs). In the clinical cohort, QAlb and NfL sex differences were tested in relation to age.Men had higher QAlb and NfL concentrations and had higher QAlb and NfL concentrations from adolescence throughout life. NfL was not related to WML, but QAlb correlated positively with WMLs.The CSF NfL sex difference could not be explained by vascular pathology. Future studies should consider using different reference limits for men and women.
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4.
  • Teni, Fitsum Sebsibe, et al. (författare)
  • Recent trends in disease-modifying therapy use and associated sickness absence and disability pension among people with multiple sclerosis in Sweden
  • 2024
  • Ingår i: Multiple Sclerosis Journal. - 1352-4585 .- 1477-0970. ; 30:3, s. 419-431
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: Disease-modifying therapies (DMTs) have led to improved health and work productivity among people with multiple sclerosis (PwMS). Objectives: To describe trajectories of recent DMT use and their association with sickness absence and/or disability pension (SADP) among PwMS in Sweden. Methods: A longitudinal register-based study was conducted among 1395 PwMS with treatment start in 2014/2015. While DMT use over 5 years was assessed using sequence analysis resulting in four clusters, a 7-year (Y-2 toY(4)) trend of SADP was analyzed using zero-inflated negative binomial regression. Results: Four clusters of DMT use trajectories were identified: long-term non-high-efficacy (483, 34.6%), long-term high-efficacy (572, 41%), escalation (221, 15.8%), and discontinuation (119, 8.5%). Progressive MS and higher expanded disability status scale scores were associated with the escalation, long-term high-efficacy, or discontinuation clusters. PwMS in the long-term high-efficacy and escalation clusters had higher likelihood of being on SADP. However, PwMS initiating high-efficacy DMTs demonstrated steeper decline in SADP than others. Conclusion: Using sequence analysis, this study showed recent DMT use trajectories among PwMS where initiation of high-efficacy DMTs has become more common. The trend of SADP was stable and lower in those using non-high-efficacy DMTs and larger improvements were shown in those initiating high-efficacy DMTs.
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5.
  • Teni, Fitsum Sebsibe, et al. (författare)
  • Self-reported restrictions in different life domains and associated factors among people with multiple sclerosis in Sweden
  • 2023
  • Ingår i: European Journal of Neurology. - : Wiley. - 1351-5101 .- 1468-1331. ; 30:7, s. 1843-1853
  • Tidskriftsartikel (refereegranskat)abstract
    • Background and purpose: The heterogeneous symptoms of multiple sclerosis (MS) can considerably impact the lives of people with MS (PwMS). The aim of this study was to describe the extent of restrictions in different life domains that PwMS experience in relation to their symptoms and level of disability. Methods: A cross-sectional survey was conducted among working-age PwMS in Sweden. The 4052 participants who answered the questions on restrictions in work and private life domains (family, leisure activities, and contact with friends/acquaintances) were included. Predictors of restrictions in the four domains were determined through multinomial logistic regression. Results: Approximately one-third of the PwMS reported no restrictions in the domains of work (35.7%), family (38.7%), leisure activities (31.1%) or contact with friends/acquaintances (40.3%), the remaining participants reported moderate to severe restrictions. Tiredness/fatigue was the most commonly reported most-limiting symptom (49.5%). PwMS with Expanded Disability Status Scale (EDSS) scores of zero reported restrictions in life domains ranging from 39.6% (friends/acquaintances) to 45.7% (leisure activities). Age, sex, education, type of living area, MS type, type of most-limiting symptom, and EDSS score predicted restrictions in work and private life domains. Conclusions: Most PwMS reported similar levels of restrictions in both their work and private lives. Restrictions in these life domains were also reported by PwMS with low disability levels (EDSS = 0) and were often associated with invisible symptoms such as fatigue. Even in a contemporary MS cohort, close to 90% of PwMS report limitations due to MS.
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Machado, Alejandra (5)
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