scholarly journals P3-540: IMPLICATIONS OF SLEEP DISPARITIES FOR COGNITIVE TEST PERFORMANCE AMONG AFRICAN AMERICAN AND WHITE OLDER ADULTS: PRELIMINARY EVIDENCE FROM TWO WISCONSIN COHORTS

2019 ◽  
Vol 15 ◽  
pp. P1178-P1179
Author(s):  
Megan Zuelsdorff ◽  
Barbara B. Bendlin ◽  
Ozioma C. Okonkwo ◽  
Kate E. Sprecher ◽  
Lindsay R. Clark ◽  
...  
2017 ◽  
Vol 23 (8) ◽  
pp. 700-705 ◽  
Author(s):  
Lisa Manderino ◽  
Ian Carroll ◽  
M. Andrea Azcarate-Peril ◽  
Amber Rochette ◽  
Leslie Heinberg ◽  
...  

AbstractObjectives: Dysbiosis of the gut microbiome is implicated in numerous human health conditions. Animal studies have linked microbiome disruption to changes in cognitive functioning, although no study has examined this possibility in neurologically healthy older adults. Methods: Participants were 43 community-dwelling older adults (50–85 years) that completed a brief cognitive test battery and provided stool samples for gut microbiome sequencing. Participants performing≥1 SD below normative performance on two or more tests were compared to persons with one or fewer impaired scores. Results: Mann Whitney U tests revealed different distributions of Bacteroidetes (p=.01), Firmicutes (p=.02), Proteobacteria (p=.04), and Verrucomicrobia (p=.003) between Intact and Impaired groups. These phyla were significantly correlated with cognitive test performances, particularly Verrucomicrobia and attention/executive function measures. Conclusions: The current findings suggest that composition of the gut microbiome is associated with cognitive test performance in neurologically healthy older adults. Future studies are needed to confirm these findings and explore possible mechanisms. (JINS, 2017, 23, 700–705)


2020 ◽  
Vol 34 (3) ◽  
pp. 198-205 ◽  
Author(s):  
Fabian W. Corlier ◽  
Crystal Shaw ◽  
Eleanor Hayes-Larson ◽  
Dan Mungas ◽  
Sarah Tomaszewski Farias ◽  
...  

2007 ◽  
Vol 3 (3S_Part_2) ◽  
pp. S134-S134
Author(s):  
Patricia C. Heyn ◽  
Rosa A. Tang ◽  
Tammie Nakamura ◽  
Robert S. Schwartz

2020 ◽  
Vol 75 (12) ◽  
pp. 2239-2248 ◽  
Author(s):  
Florian Lammers ◽  
Norman Zacharias ◽  
Friedrich Borchers ◽  
Rudolf Mörgeli ◽  
Claudia Doris Spies ◽  
...  

Abstract Frailty is a geriatric syndrome defined by coexistence of unintentional weight loss, low physical reserve, or activity and is associated with adverse health events. Neuroimaging studies reported structural white matter changes in frail patients. In the current study, we hypothesized that clinical frailty is associated also with functional changes in motion-related cortical areas, that is, (pre-)supplementary motor areas (SMA, pre-SMA). We expected that observed functional changes are related to motor-cognitive test performance. We studied a clinical sample of 143 cognitively healthy patients ≥65 years presenting for elective surgery, enrolled in the BioCog prospective multicentric cohort study on postoperative cognitive disorders. Participants underwent preoperative resting-state functional magnetic resonance imaging, motor-cognitive testing, and assessment of Fried’s modified frailty criteria. We analyzed functional connectivity associations with frailty and motor-cognitive test performance. Clinically robust patients (N = 60) showed higher connectivity in the SMA network compared to frail (N = 13) and prefrail (N = 70) patients. No changes were found in the pre-SMA network. SMA connectivity correlated with motor speed (Trail-Making-Test A) and manual dexterity (Grooved Pegboard Test). Our results suggest that diminished functional connectivity of the SMA is an early correlate of functional decline in the older adults . The SMA may serve as a potential treatment target in frailty.


2019 ◽  
Vol 15 ◽  
pp. P916-P917
Author(s):  
Joshua C. Bis ◽  
Claudia L. Satizabal ◽  
Bruce M. Psaty ◽  
W.T. Longstreth ◽  
Lenore J. Launer ◽  
...  

2012 ◽  
Vol 60 (7) ◽  
pp. 1286-1291 ◽  
Author(s):  
Mirjam Köhler ◽  
Matthias Kliegel ◽  
Hanna Kaduszkiewicz ◽  
Cadja Bachmann ◽  
Birgitt Wiese ◽  
...  

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