scholarly journals Potential Factors Associated with Cognitive Improvement of Individuals Diagnosed with Mild Cognitive Impairment or Dementia in Longitudinal Studies

2018 ◽  
Vol 66 (2) ◽  
pp. 587-600 ◽  
Author(s):  
Christoforos Hadjichrysanthou ◽  
Kevin McRae-McKee ◽  
Stephanie Evans ◽  
Frank de Wolf ◽  
Roy M. Anderson ◽  
...  
2021 ◽  
Author(s):  
Feng Sha ◽  
Ziyi Zhao ◽  
Chang Wei ◽  
Zhirong Yang ◽  
Bingyu Li

Abstract Background Previous studies found that about 24% of the mild cognitive impairment (MCI) patients reverse to cognitively normal (CN) status. However, it is unclear which modifiable factors are associated with this reversion. Method We conducted a prospective community-based cohort study based on 2002-2018 Chinese Longitudinal Health Longevity Survey (CLHLS). Of 35,474 older adults from 22 provinces in China in the 5 waves of CLHLS, 7,422 eligible participants with MCI were included. Multivariable Cox regression with least absolute shrinkage and selection operator (LASSO) penalty for variable selection was adopted to investigate the associations between reversion to CN and potential modifiable dietary/lifestyle, cardiometabolic, and psychological factors. Results Our analysis included 7,422 MCI participants [average age: 90.0 (SD 9.5) years]. Among these participants, 1,604 (21.6%) reversed from MCI to CN with a mean (SD) follow-up of 2.9 (1.8) years. Several dietary/lifestyle factors, including daily consumption of fresh fruits (Hazard Ratio [HR]: 1.28, 95% CI: 1.15 to 1.42; P༜.001), engagement in reading (HR: 1.24, 95% CI: 1.00 to 1.54; P =.047), housework (HR: 1.21, 95% CI: 1.08 to 1.35; P =.001), and mah-jong or other card games (HR: 1.23, 95% CI: 1.08 to 1.39; P =.001), were positively associated with possibility of reversion. Cigarette smoking (HR: 0.92, 95% CI: 0.84 to 1.00; P= .041) and duration of alcohol drinking (HR: 0.97, 95% CI: 0.94 to 0.99; P = .012) were negatively associated with possibility of reversion. None of the modifiable cardiometabolic and psychological factors was found to be significantly associated with reversion to CN. Difference was identified among different age and gender group. Conclusion This study identified several dietary/lifestyle factors associated with MCI reversion that may transfer into large-scale dementia prevention practices.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Carla P Rodriguez Monserrate ◽  
Rajeshwari Jakkam ◽  
Emily Clay ◽  
Kimberlee Gauvreau ◽  
Michelle Z GURVITZ

Introduction: The most common comorbidities in children with congenital heart disease (CHD) are neurodevelopmental and psychosocial impairments, particularly in areas of executive function, memory, attention, and behavioral control. Limited studies in the adult CHD population suggest similar impairments exist and adults with CHD may be at increased risk for dementia. No studies have screened specifically for mild cognitive impairment and dementia in adult CHD patients. Methods: We performed a prospective cross-sectional study of adult CHD patients, ages 30-65 years, who were coming for routine clinic visits. We administered the Mini-Mental State Exam (MMSE) and scores were compared with population norms adjusted by age and education level. We also evaluated the association of MMSE scores with CHD complexity, demographic and clinical risk factors. Results: A total of 125 patients were recruited (55% male). The median age was 40 years (range 30-65). Almost all participants (97%) had a high school degree and 75% had some college education or advanced degrees. The majority of patients (94%) had moderate or complex CHD. Adjusting for age and education, CHD participants scored significantly lower than the general population (median 1 point lower, p=0.001). The greatest impairments occurred in recall and orientation. Factors associated with lower scores included decreased systemic ventricular function (p=0.028) and having ≥2 cardiac catheterizations (p=0.006). Five percent of the total cohort met the general threshold for mild cognitive impairment (MMSE<24). Clinical factors associated with this degree of cognitive impairment were duration of cyanosis (p=0.005) and decreased systemic ventricular function (p=0.003). Conclusions: Our pilot study showed that, when adjusted for age and education level, adult CHD patients had significantly lower MMSE scores than the general population, with 5% meeting criteria for mild cognitive impairment. These findings suggest that subtle and early neurodevelopmental changes are present in the adult CHD population. Further studies are needed to investigate those changes and evaluate potential disease modifying therapies that might influence long-term outcomes in the adult CHD population.


2020 ◽  
Vol 10 (1) ◽  
pp. 38-45 ◽  
Author(s):  
Jiranan Griffiths ◽  
Lakkana Thaikruea ◽  
Nahathai Wongpakaran ◽  
Peeraya Munkhetvit

Introduction: Mild cognitive impairment (MCI) is a transitional stage between normal cognition and dementia. A review showed that 10–15% of those with MCI annually progressed to Alzheimer’s disease. Objective: This study aimed to investigate the prevalence and risk factors associated with MCI as well as the characteristics of cognitive deficits among older people in rural Thailand. Methods: A cross-sectional study in 482 people who were 60 years old and over was conducted in northern Thailand. The assessments were administered by trained occupational therapists using demographic and health characteristics, Mental Status Examination Thai 10, Activities of Daily Living – Thai Assessment Scale, 15-item Geriatric Depression Scale and the Montreal Cognitive Assessment-Basic (MoCA-B, Thai version). Results: The mean age of MCI was 68.3 ± 6.82 years, and most had an education ≤4 years. The prevalence of MCI in older people was 71.4% (344 out of 482), and it increased with age. Low education and diabetes mellitus (DM) were the significant risk factors associated with cognitive decline. Older people with MCI were more likely to have an education ≤4 years (RR 1.74, 95% CI 1.21–2.51) and DM (RR 1.19, 95% CI 1.04–1.36) than those who did not. The 3 most common cognitive impairments according to MoCA-B were executive function (86%), alternating attention (33.1%) and delayed recall (31.1%). Conclusion: The prevalence of MCI in older Thai people in a rural area is high compared with that in other countries. The explanation might be due to low education and underlying disease associated with MCI. A suitable program that can reduce the prospects of MCI in rural Thailand is needed.


2014 ◽  
Vol 61 (3) ◽  
pp. 318-326 ◽  
Author(s):  
Y. Kang ◽  
M. Kim ◽  
D. Jung ◽  
C. Cha ◽  
M. Kim

Psichologija ◽  
2012 ◽  
Vol 46 ◽  
pp. 123-134
Author(s):  
Laura Sapranavičiūtė ◽  
Abdonas Tamošiūnas

Senėjimo problemos kontekste pažintinių gebėjimų prastėjimas tampa vis aktualesnė tema. Yra duomenų, kad APOE ɛ4 genotipas prognozuoja prastesnius pažintinius gebėjimus. Taigi, kyla poreikis išsiaiškinti, kurie pažintinių gebėjimų komponentai ir jų pokyčiai siejasi su APOE ɛ4 genotipu. Šio straipsnio tikslas – sisteminės analizės metodu apžvelgti mokslinius tyrimus, analizavusius pažintinių gebėjimų ir APOE ɛ4 genotipo sąsajas.Ankstesnių tyrimų rezultatai atskleidžia, kad turintieji APOE ɛ4 alelį pasižymi prastesniais pažintiniais gebėjimais, palyginti su asmenimis, neturinčiais APOE ɛ4. Dauguma tyrimų įrodo, kad APOE ɛ4 genotipas susijęs su prastesne atmintimi ir vykdomosios funkcijos rezultatais. Kiek rečiau aptinkami APOE ɛ4 ir dėmesio ryšiai. O verbaliniai ir samprotavimo gebėjimai su šio geno polimorfizmu dažniausiai nesiejami. Manoma, kad APOE ɛ4 genotipas gali turėti įtakos pažintinių gebėjimų prastėjimui, tačiau lieka neaiški šio geno polimorfizmo įtaka pažintinių gebėjimų prastėjimui, pasireiškus Alzheimerio ligai.Taigi, APOE ɛ4 genotipas gali būti rizikos veiksnys, susijęs tiek su natūraliu, tiek su patologiniu pažintinių gebėjimų prastėjimu. Tačiau tolesni APOE ɛ4 genotipo ir pažintinių gebėjimų sąsajų tyrimai yra būtimi.Pagrindiniai žodžiai: pažintiniai gebėjimai, APOE ɛ4 genotipas.ASSOCIATIONS BETWEEN COGNITIVE FUNCTIONS AND APOLIPOPROTEIN E Ɛ4 GENOTYPE: SYSTEMIC REVIEWLaura Sapranavičiūtė, Abdonas TamošiūnasSummaryDeterioration of cognitive functions is becoming more and more important issue in context of aging. So there is the growing interest in studies looking for the risk factors of deterioration of cognitive functions. Apolipoprotein E is a plasma protein whose major function is lipids transportation. APOE ɛ4 allele of the Apolipoprotein E gene is known as a risk factor of Alzheimer disease. Previous researchers stated, that APOE ɛ4 also might be related to cognitive performance in normal aging. However results of previous studies are quit confusing: different studies established various associations between APOE ɛ4 and specific cognitive functions. Moreover, longitudinal studies failed to establish prognostic value of APOE ɛ4 genotype to different levels of cognitive functions deterioration. So the purpose of this study is to review prospective, observational, cohort studies that had researched association between APOE ɛ4 and cognitive functions using systematic analysis method.The weight of evidence suggests that APOE ɛ4 is associated with cognitive functions in healthy adults. APOE ɛ4 carriers are likely to have lower level of cognitive functions. Associations between specific cognitive functions and APOE ɛ4 genotype are quit confusing. The most consistent finding was a negative relationship between APOE ɛ4 genotype and performance of memory and executive functioning. Presence of APOE ɛ4 and attention test results was less likely to be associated. Reasoning and verbal abilities were mostly not connected to APOE ɛ4 genotype. Associations between APOE ɛ4 and cognitive function differ in the groups of healthy adults, adults with mild cognitive impairment or Alzheimer disease. There were established that APOE ɛ4 is associated with cognitive functions in cognitively impaired population. People with mild cognitive impairment or Alzheimer disease more often tended to be APOE ɛ4 carriers in comparison with people who are not cognitively impaired. Longitudinal studies revealed different links between APOE ɛ4 and cognitive functions. Although APOE ɛ4 might be a risk factor of deterioration of cognitive functions in healthy and impaired cognitive functions groups. Yet prognostic value of APOE ɛ4 in deterioration of cognitive functions in Alzheimer population is confusing.The current review suggests that APOE ɛ4 has an effect on cognitive functions. It might be a risk factor for deterioration of cognitive functions in healthy adults and cognitively impaired population. However further researches are needed to establish specific associations between APOE ɛ4 genotype and different cognitive functions in healthy adults and disease populations.Keywords: cognitive functions, APOE ɛ4 genotype.


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