Do subjective memory complaints predict cognitive dysfunction over time? A six-year follow-up of the Maastricht Aging Study

2006 ◽  
Vol 21 (5) ◽  
pp. 432-441 ◽  
Author(s):  
Martine E. M. Mol ◽  
Martin. P. J. van Boxtel ◽  
Dick Willems ◽  
Jelle Jolles
2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Filippo Baldacci ◽  
◽  
Simone Lista ◽  
Maria Laura Manca ◽  
Patrizia A. Chiesa ◽  
...  

Abstract Background Plasma neurofilament light (NFL) and total Tau (t-Tau) proteins are candidate biomarkers for early stages of Alzheimer’s disease (AD). The impact of biological factors on their plasma concentrations in individuals with subjective memory complaints (SMC) has been poorly explored. We longitudinally investigate the effect of sex, age, APOE ε4 allele, comorbidities, brain amyloid-β (Aβ) burden, and cognitive scores on plasma NFL and t-Tau concentrations in cognitively healthy individuals with SMC, a condition associated with AD development. Methods Three hundred sixteen and 79 individuals, respectively, have baseline and three-time point assessments (at baseline, 1-year, and 3-year follow-up) of the two biomarkers. Plasma biomarkers were measured with an ultrasensitive assay in a mono-center cohort (INSIGHT-preAD study). Results We show an effect of age on plasma NFL, with women having a higher increase of plasma t-Tau concentrations compared to men, over time. The APOE ε4 allele does not affect the biomarker concentrations while plasma vitamin B12 deficiency is associated with higher plasma t-Tau concentrations. Both biomarkers are correlated and increase over time. Baseline NFL is related to the rate of Aβ deposition at 2-year follow-up in the left-posterior cingulate and the inferior parietal gyri. Baseline plasma NFL and the rate of change of plasma t-Tau are inversely associated with cognitive score. Conclusion We find that plasma NFL and t-Tau longitudinal trajectories are affected by age and female sex, respectively, in SMC individuals. Exploring the influence of biological variables on AD biomarkers is crucial for their clinical validation in blood.


2020 ◽  
pp. 1-29
Author(s):  
Kyle D. Meeuwsen ◽  
Kayleah M. Groeneveld ◽  
Linda A. Walker ◽  
Anna M. Mennenga ◽  
Rachel K. Tittle ◽  
...  

Background: The three-month, multidomain Memory Boot Camp program incorporates z-score neurofeedback (NFB), heart rate variability (HRV) biofeedback, and one-on-one coaching to teach memory skills and encourage behavior change in diet, sleep, physical fitness, and stress reduction. Objective: This prospective trial evaluates the Memory Boot Camp program for adults ages 55 to 85 with symptoms of Mild Cognitive Impairment (MCI) and subjective memory complaints. Methods: Participants were evaluated via the Montreal Cognitive Assessment (MoCA), NeuroTrax Global Cognitive Index, measures of anxiety, depression, sleep, quality of life, quantitative electroencephalography (QEEG), and HRV parameters at four timepoints: baseline, pre-program, post-program, and follow-up. The trial included a three-month waiting period between baseline and pre-program, such that each participant acted as their own control, and follow-up took place six months after completion of the program. Results: Participants’ MoCA scores and self-reported measures of anxiety, depression, sleep quality, and quality of life improved after treatment, and these changes were maintained at follow-up. Physiological changes in HRV parameters after treatment were not significant, however, breathing rate and QEEG parameters were improved at post-program and maintained at follow-up. Finally, participants’ improvement in MoCA score over the treatment period was correlated with their improvement in two brain oscillation parameters targeted by the z-score NFB protocol: relative power of delta and relative power of theta. Conclusions: Trial results suggest that the Memory Boot Camp program is a promising treatment strategy for older adults with symptoms of MCI and subjective memory complaints.


2015 ◽  
Vol 21 (3) ◽  
pp. 313-321 ◽  
Author(s):  
Jennifer A. Yates ◽  
Linda Clare ◽  
Robert T. Woods ◽  

Author(s):  
Franziska Dinah Welzel ◽  
Melanie Luppa ◽  
Alexander Pabst ◽  
Michael Pentzek ◽  
Angela Fuchs ◽  
...  

Research on anxiety in oldest-old individuals is scarce. Specifically, incidence studies based on large community samples are lacking. The objective of this study is to assess age- and gender-specific incidence rates in a large sample of oldest-old individuals and to identify potential risk factors. The study included data from N = 702 adults aged 81 to 97 years. Anxiety symptoms were identified using the short form of the Geriatric Anxiety Inventory (GAI-SF). Associations of potential risk factors with anxiety incidence were analyzed using Cox proportional hazard models. Out of the N = 702 older adults, N = 77 individuals developed anxiety symptoms during the follow-up period. The incidence rate was 51.3 (95% CI: 41.2–64.1) per 1000 person-years in the overall sample, compared to 58.5 (95% CI: 43.2–72.4) in women and 37.3 (95% CI: 23.6–58.3) in men. Multivariable analysis showed an association of subjective memory complaints (HR: 2.03, 95% CI: 1.16–3.57) and depressive symptoms (HR: 3.20, 95% CI: 1.46–7.01) with incident anxiety in the follow-up. Incident anxiety is highly common in late life. Depressive symptoms and subjective memory complaints are major risk factors of new episodes. Incident anxiety appears to be a response to subjective memory complaints independent of depressive symptoms.


Author(s):  
Stephanie A. Schultz ◽  
Jennifer M. Oh ◽  
Rebecca L. Koscik ◽  
N. Maritza Dowling ◽  
Catherine L. Gallagher ◽  
...  

1992 ◽  
Vol 7 (7) ◽  
pp. 481-486 ◽  
Author(s):  
John T. O'Brien ◽  
Barbara Beats ◽  
Katie Hill ◽  
Robert Howard ◽  
Barbara Sahakian ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document