scholarly journals Denture Use and Cognitive Decline in Chinese Older Adults: A Propensity Score Analysis

2021 ◽  
Vol 5 (Supplement_1) ◽  
pp. 31-32
Author(s):  
Bei Wu ◽  
Xiang Qi
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Tooth Loss ◽  
Propensity Scores ◽  
Propensity Score Analysis ◽  
Healthy Longevity ◽  
The Difference ◽  
Using Data ◽  
Matched Data

Abstract Using data from the Chinese Longitudinal Healthy Longevity Survey (2011 to 2018), we examined the effect of denture use on cognitive decline (assessed by the Mini-Mental State Examination [MMSE]) among 1,316 cognitively normal older adults with severe tooth loss (≤9 remaining teeth) at baseline. We generated propensity scores for weighted and matched analyses using 18 covariates, classified as socio-demographics, health-related behaviors, health status, and oral health conditions. The results show that non-denture users had worse cognitive decline than denture users. In the kernel-based matched data, the difference in the declined score of cognitive function between denture and non-denture users was 2.25 (95%CI=1.37 to 3.13). In the weighted data, the difference in cognitive function score was 2.14 (95% CI=1.35 to 2.94). Using dentures is beneficial for cognitive health in older adults with severe tooth loss, suggesting that prosthodontic rehabilitation with dentures might have benefits beyond restoring oral functioning.

Association between Cognitive Decline and Oral Health Status in the Aging Population – A 5- year prospective cohort study (Preprint)

2019 ◽  
Author(s):  
Swapnil Bumb ◽  
Charu Chitra Govindan ◽  
Safalya Kadtane ◽  
Rukmini JN ◽  
Roshani Chawla ◽  
...  
Keyword(s):  
Older Adults ◽  
Regression Analysis ◽  
Cohort Study ◽  
Health Status ◽  
Oral Health ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Tooth Loss ◽  
Oral Health Status ◽  
Oral Examinations

BACKGROUND Till date no longitudinal prospective study have investigated the association between the oral health status and cognitive decline in the geriatric Indian population, possibly due to past studies differing in target groups and methodologies. We aimed to investigate the association between tooth loss, as evaluated through clinical oral examinations, and the development of cognitive decline in the older adults while considering baseline cognitive function. OBJECTIVE to investigate the association between tooth loss, as evaluated through clinical oral examinations, and the development of cognitive decline in the older adults while considering baseline cognitive function. METHODS This 5-year prospective cohort study followed 140 participants (mean age: 72.5 ± 4.3 years) without cognitive impairment aged ≥65 years (mean age: 70.9 ± 4.3 years) living in the Dhule Region of Maharashtra , India. Cognitive function was evaluated with the Mini-Mental State Examination (MMSE) in baseline and follow-up surveys,while oral health examination was carried out using Oral Hygiene Index To investigate the association between oral health status and cognitive decline, we applied a multiple logistic regression analysis adjusted for age, gender, hypertension, diabetes, cerebrovascular/cardiovascular disease, hypercholesterolemia, depressive symptoms, body mass index, smoking status, drinking status, duration of education, and baseline MMSE score. RESULTS In the 5 years after the baseline survey, we have obtained an overall incidence of 20.71%. population who developed cognitive decline (i.e., MMSE scores of ≤24). Multivariable logistic regression analysis indicated that participants with compromised oral health were more likely to develop cognitive decline than those with mild to moderate oral health were (odds ratio: 3.31; 95% confidence interval: 1.07–10.2). Age, male gender, and baseline MMSE scores were also significantly associated with cognitive decline. CONCLUSIONS Poor Oral health status was independently associated with the development of cognitive decline within 5 years among the geriatric population of India . This finding corroborates the hypothesis that oral health may be a predictor or risk factor for cognitive decline. CLINICALTRIAL Not applied

scholarly journals Diet quality in relation to healthy ageing: the Israeli Longitudinal Study on Aging (ILSA)—a study protocol

BMJ Open ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. e024673 ◽  
Author(s):  
Abigail Goshen ◽  
Uri Goldbourt ◽  
Tamar Shohat ◽  
Tal Shimony ◽  
Lital Keinan-Boker ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Diet Quality ◽  
Medical Center ◽  
Healthy Eating Index ◽  
Nutrition Survey ◽  
Informed Consent Form ◽  
Ethical Approval ◽  
The Difference

IntroductionPopulation ageing is accelerating rapidly in Israel as well as worldwide, necessitating adaptation of the healthcare system and consideration of new approaches that serve the specific needs of older adults. In addition to cognitive function, frailty is one of the most challenging expressions of physical and mental ageing, a multidimensional syndrome of increased vulnerability. Several studies have shown that low intake of certain micronutrients and protein is associated with higher risk of frailty and cognitive impairment. However, whether global diet quality is involved in the aetiology of the latter outcomes is unclear.Methods and analysisWe are conducting, among older adult subjects who took part in ‘Mabat Zahav’ (Israeli National Health and Nutrition Survey of Older Adults) in 2005–2006 (T0, n=1852), an extensive follow-up interview (T1) that includes comprehensive geriatric assessment and evaluation of general health and quality of life. Diet quality is evaluated using the Healthy Eating Index (HEI) 2010, based on 24-hour diet recall measured at T0 and T1. Frailty is assessed using two different approaches: the phenotype framework and the accumulation of deficits model. Cognitive function is assessed by Mini-Mental State Examination (MMSE) and cognitive decline is assessed by the difference between repeated MMSE measurements. Different analytic methods will be applied to evaluate the role of diet quality in development of frailty and cognitive decline with inverse probability weighting used to minimise attrition bias. About 600 subjects are expected to be interviewed between May 2017 and December 2019.Ethics and disseminationEthical approval was obtained from the Helsinki Committee of Sheba Medical Center, Tel Hashomer, Israel and the Ethical Committee of Tel-Aviv University. All participants sign an informed consent form. The findings of the study will be published in peer-reviewed journals.

scholarly journals SOCIAL AND PSYCHOLOGICAL FACTORS AND COGNITIVE FUNCTION: FINDINGS FROM INTERNATIONAL SURVEYS

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S204-S205
Author(s):  
Hanzhang Xu ◽  
Bei Wu
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Formal Schooling ◽  
Subjective Memory ◽  
Memory Decline ◽  
Subjective Cognitive Function ◽  
Neuropsychological Symptoms ◽  
Using Data ◽  
Dementia Onset

Abstract This symposium examines how social and psychological factors including formal schooling, subjective memory, and neuropsychological symptoms impact cognitive function among older adults in China and the U.S. The first paper used the WHO’s Study on global AGEing and adult health Wave-1 data to examine the relationship between subjective cognitive function, perceived memory decline, and objective cognitive function among older adults in China. The results showed worse subjective cognitive function was associated with poorer working memory and verbal fluency, whereas greater perceived memory decline was associated only with poorer working memory. Furthermore, using data from the Health and Retirement Study, the second paper applied group-based trajectory modeling to assess dual trajectories of subjective memory impairment and objective cognitive decline. Four distinct dual-trajectory typologies were identified, suggesting complex co-occurring changes in subjective memory and objective cognition in older adults. The third paper characterized the trajectories of three neuropsychological symptoms (pain, insomnia, and depression) prior to dementia onset. Using data from the National Health and Aging Trends Study, the study found older adults with dementia exhibit distinct trajectory of depression before dementia onset than those without dementia. Trajectories of pain and insomnia did not differ before dementia onset. The last paper examined the effect of education on cognitive decline among lower educated older adults using data from the Longitudinal Study of Older Adults in Anhui Province, China. Results suggest that older adults with some formal schooling had slower cognitive decline; the gap in cognition between the literate and illiterate widened with age.

scholarly journals Social isolation, rather than loneliness, is associated with cognitive decline in older adults: the China Health and Retirement Longitudinal Study

2021 ◽  
pp. 1-8
Author(s):  
Bin Yu ◽  
Andrew Steptoe ◽  
Yongjie Chen ◽  
Xiaohua Jia
Keyword(s):  
Older Adults ◽  
Longitudinal Study ◽  
Cognitive Function ◽  
Episodic Memory ◽  
Cognitive Decline ◽  
Social Isolation ◽  
Mental Status ◽  
Chinese Older Adults ◽  
Confounding Variables

Abstract Background Social isolation and loneliness have each been associated with cognitive decline, but most previous research is limited to Western populations. This study examined the relationships of social isolation and loneliness on cognitive function among Chinese older adults. Methods This study used two waves of data (2011 and 2015) from the China Health and Retirement Longitudinal Study and analyses were restricted to those respondents aged 50 and older. Social isolation, loneliness, and cognitive function were measured at baseline. Follow-up measures on cognitive function were obtained for 7761 participants (mean age = 60.97, s.d. = 7.31; male, 50.8%). Lagged dependent variable models adjusted for confounding factors were used to evaluate the association between baseline isolation, loneliness, and cognitive function at follow-up. Results Loneliness was significantly associated with the cognitive decline at follow-up (episodic memory: β = −0.03, p < 0.01; mental status: β = −0.03, p < 0.01) in the partially adjusted models. These associations became insignificant after additional confounding variables (chronic diseases, health behaviors, disabilities, and depressive symptoms) were taken into account (all p > 0.05). By contrast, social isolation was significantly associated with decreases in all cognitive function measures at follow-up (episodic memory: β = −0.05, p < 0.001; mental status: β = −0.03, p < 0.01) even after controlling for loneliness and all confounding variables. Conclusions Social isolation is associated with cognitive decline in Chinese older adults, and the relationships are independent of loneliness. These findings expand our knowledge about the links between social relationships and the cognitive function in non-Western populations.

scholarly journals Effects of Participation in Social Activities on Cognitive Function Among Middle-Aged and Older Adults in Korea

2018 ◽  
Vol 15 (10) ◽  
pp. 2315 ◽  
Author(s):  
Jongnam Hwang ◽  
Sangmin Park ◽  
Sujin Kim
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Social Connectedness ◽  
Social Activity ◽  
Later Life ◽  
Well Being ◽  
Social Activities ◽  
The Social ◽  
Gender Groups

Cognitive function is a critical health issue in later life, the decline of which disrupts well-being and daily life function. Cognitive decline in older ages can also be understood in the context of the social environment such as social connectedness and engagement in personal life. This study aimed to examine: (1) whether participation in social activities contributes to preventing cognitive decline, and (2) what type of social activities are beneficial to maintaining cognitive function. Data from the Korean Longitudinal Study of Aging (KLOSA) 2006–2014, a longitudinal survey of the household-dwelling population aged 45 and older in Korea were used. The results revealed that Mini-Mental State Examination (MMSE) scores decreased with increasing age, at a rate of approximately 0.18 units across all age-gender groups, and the decrease was steeper for adults aged 65 and over. Participation in social gatherings was likely to delay the decline in cognitive function after the age of 65. In a gender-stratified model, social activity may not have an impact on the decline of cognitive function for men, whereas participation in social gatherings was negatively related to the decline of MMSE scores in women. This study suggests the need for a gender-stratified policy for preventing the decline of cognitive function while promoting engagement in social activities in Korean older adults.

scholarly journals Long-term effects of alcohol consumption on cognitive function in seniors: a cohort study in China

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Lizhen Han ◽  
Jinzhu Jia
Keyword(s):  
Cognitive Function ◽  
Alcohol Consumption ◽  
Cognitive Decline ◽  
Cox Model ◽  
The Elderly ◽  
Alcoholic Beverages ◽  
Rice Wine ◽  
Long Term Effects ◽  
Healthy Longevity

Abstract Background In the context of increasing global aging, the long-term effects of alcohol consumption on cognitive function in older adults were analyzed in order to provide rationalized health recommendations to the elderly population. Methods The study used the Chinese Longitudinal Healthy Longevity Survey (CLHLS) dataset, from which 5354 Chinese seniors aged 65–112 years were selected as the subjects, spanning the years 1998–2018. Data on alcohol, diet, activity, and cognition were collected by questionnaire and cognitive levels were judged by the Mini-Mental State Examination scale (also referenced to the Functional Assessment Staging Test). Data cleaning and preprocessing was implemented by R software. The dynamic Cox model was applied for model construction and data analysis. Results The results of the dynamic Cox model suggested that seniors who drank alcohol were at higher risk of cognitive decline compared to those who never drank (HR = 1.291, 95%CI: 1.175–1.419). The risk was similarly exacerbated by perennial drinking habits (i.e., longer drinking years, HR = 1.008, 95%CI: 1.004–1.013). Compared to non-alcoholic beverages, liquor (≥ 38°), liquor (< 38°), wine and rice wine all showed negative effects. Whereas, the risk of cognitive decline was relatively lower in seniors who consumed liquors (< 38°) and rice wine compared to the high-level liquor (HR: 0.672 (0.508, 0.887) and 0.732 (0.559, 0.957), respectively). Conclusions Alcohol consumption has a negative and long-term effects on cognitive function in seniors. For the elderly, we suggested that alcohol intake should be avoided as much as possible.

Effect of the Fungus Isaria japonica from the Silkworm on Cognitive Function in Older Adults with Mild Cognitive Decline: A Pilot Study

2021 ◽  
Vol 19 (4) ◽  
pp. 383-387
Author(s):  
Daisuke Furushima ◽  
Yuri Takashima ◽  
Toshiji Miyagawa ◽  
Hiroshi Fujita ◽  
Yuzuki Nomura ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Blood Test ◽  
Mmse Score ◽  
Protective Role ◽  
In Vivo Studies ◽  
Serious Adverse Events ◽  
Silkworm Pupae

Several in vivo studies report that the fungus Isaria japonica grown on silkworm pupae, classified as a Cordycipitaceae, plays a role in preventing memory deficits and may have a protective role against cognitive impairment. The present study investigated the cognitive effects and safety of I. japonica in older adults with mild cognitive decline. Intervention trial was conducted in subjects over 60 years of age with mild cognitive decline (Mini-Mental State Examination [MMSE] score: 20-27). The subjects consumed the I. japonica supplements twice per day for 12 weeks. The outcome measures included the MMSE score and blood test values before and after the intervention. A total of 25 subjects (aged 64-94 years) were eligible for the study. After the intervention, the MMSE score (mean ± standard deviation) significantly increased from 25.5 ± 1.6 to 27.1 ± 2.4 (P < 0.0001). The blood test revealed no change in any of the hematological and biochemical parameters evaluated. Also, no serious adverse events were reported. Despite several limitations in the study design, the findings of the present study suggest that the fungus I. japonica is safe to consume and it may improve cognitive function in older adults with mild cognitive decline.

Abstract 22: Visit-to-Visit Variability in Blood Pressure is Related to Late-Life Cognitive Decline

Circulation ◽  
2015 ◽  
Vol 131 (suppl_1) ◽  
Author(s):  
Bo Qin ◽  
Anthony J Viera ◽  
Linda S Adair ◽  
Brenda L Plassman ◽  
Lloyd J Edwards ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Older Adults ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Verbal Memory ◽  
Repeated Measures ◽  
Community Dwelling ◽  
Cognitive Testing ◽  
Cognitive Test ◽  
Nutrition Survey

Introduction: Recent studies suggest higher visit-to-visit variability of blood pressure (BP) is associated with worse cognitive function, but evidence based on longitudinal cognitive testing has not been reported. Hypothesis: We assessed the hypothesis that higher visit-to-visit variability in BP, but not mean BP, would be associated with faster decline in cognitive function among community-dwelling older adults. Methods: This prospective cohort study comprised 1213 adults who had two or more waves of BP measurements as part of the China Health and Nutrition Survey from 1991, up to their first cognitive tests, and completed a cognitive screening test at two or more waves in 1997, 2000 or 2004. Mean (SD) age at first cognitive test was 64 (6) y. Outcomes were repeated measures of global cognitive scores (baseline mean ± SD: 19 ± 6 points), standardized composite cognitive and verbal memory scores (standardized units [SU]). Visit-to visit BP variability was expressed as the standard deviation [SD] or as the variation independent of mean (SD/mean^x, with x derived from curve fitting) in BP measures obtained at a mean interval of 3.6 years. Multivariable-adjusted linear mixed-effects models were used to determine the association of changes in cognitive scores with visit-to visit BP variability. Results: Higher visit-to-visit variability in systolic BP, but not mean systolic BP, was associated with a faster decline of cognitive function (adjusted mean difference [95% CI] for high vs. low tertile of SD in variability (Figure): global score -0.23 points/y [-0.41 to -0.04], composite scores -0.029 SU/y [-0.056 to -0.002] and verbal memory -0.044 SU/y [-0.075 to -0.012]). Higher visit-to-visit variability in diastolic BP was associated with a faster decline of global cognitive function only among adults 55-64 years, independent of mean diastolic BP. Conclusion: Higher long-term BP visit-to-visit variability predicted a faster rate of cognitive decline among older adults.

The Brain-Derived Neurotrophic Factor Functional Polymorphism and Hand Grip Strength Impact the Association between Brain-Derived Neurotrophic Factor Levels and Cognition in Older Adults in the United States

2022 ◽  
pp. 109980042110651
Author(s):  
Tingting Liu ◽  
Hongjin Li ◽  
Yvette P. Conley ◽  
Brian A. Primack ◽  
Jing Wang ◽  
...  
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Cognitive Decline ◽  
Grip Strength ◽  
Mental Status ◽  
Neurotrophic Factor ◽  
Brain Derived Neurotrophic Factor ◽  
Hand Grip Strength ◽  
Hand Grip ◽  
Serum Bdnf

Introduction Aging is associated with subtle cognitive decline in attention, memory, executive function, processing speed, and reasoning. Although lower brain-derived neurotrophic factor (BDNF) has been linked to cognitive decline among older adults, it is not known if the association differs among individuals with various BDNF Val66Met (rs6265) genotypes. In addition, it is not clear whether these associations vary by hand grip strength or physical activity (PA). Methods A total of 2904 older adults were included in this study using data from the Health and Retirement Study. Associations between serum BDNF and measures of cognitive function were evaluated using multivariable linear regression models stratified by Met allele status. PA and hand grip strength were added to the model to evaluate whether including these variables altered associations between serum BDNF and cognition. Results Mean age was 71.4 years old, and mean body mass index was 28.3 kg/m2. Serum BDNF levels were positively associated with higher total cognitive score (beta = 0.34, p = .07), mental status (beta = 0.16, p = .07), and word recall (beta = 0.22, p =.04) among Met carriers, while serum BDNF levels were negatively associated with mental status (beta = −0.09, p = .07) among non-Met carriers. Furthermore, associations changed when hand grip strength was added to the model but not when PA was added to the model. Conclusions The BDNF Val66Met variant may moderate the association between serum BDNF levels and cognitive function in older adults. Furthermore, such associations differ according to hand grip strength but not PA.

Duration of Poverty and Subsequent Cognitive Function and Decline Among Older Adults in China, 2005–2018

Neurology ◽  
2021 ◽  
pp. 10.1212/WNL.0000000000012343
Author(s):  
Xuexin Yu ◽  
Wei Zhang ◽  
Lindsay C. Kobayashi
Keyword(s):  
Older Adults ◽  
Cognitive Function ◽  
Late Life ◽  
Tobit Regression ◽  
Annual Household Income ◽  
Middle Income ◽  
Healthy Longevity ◽  
Rate Of Decline ◽  
Statistical Yearbook

Objective:To investigate the relationship between late-life duration of poverty exposure and cognitive function and decline among older adults in China.Methods:Data were from 3,209 participants aged ≥64 in the Chinese Longitudinal Healthy Longevity Survey (CLHLS). Duration of poverty, defined according to urban and rural regional standards from the China Statistical Yearbook, was assessed based on annual household income from 2005-2011 (never in poverty; 1/3 of the period in poverty; ≥2/3 of the period in poverty). Cognitive function was measured by the Chinese Mini Mental State Exam (CMMSE) from 2011-2018. We used attrition-weighted, multivariable mixed-effects Tobit regression to examine the association of duration of poverty with cognitive function and rate of decline.Results:A total of 1,162 individuals (36.21%) were never in poverty over the period from 2005-2011, 1,172 (36.52%) were in poverty 1/3 of the period, and 875 (27.27%) were in poverty ≥2/3 of the period. A longer poverty duration was associated with lower subsequent CMMSE scores with a dose-response relationship (1/3 vs. never in poverty: β = -0.98; 95% CI: -1.61 to -0.35; ≥2/3 vs. never in poverty: β = -1.55; 95% CI: -2.29 to -0.81). However, a longer duration of poverty was associated with a slower rate of CMMSE score decline over time from 2011-2018.Conclusion:These findings provide valuable evidence on the role of cumulative late-life poverty in relation to cognitive health among older adults in a rapidly urbanizing and aging middle-income country. Our findings may support a compensation hypothesis for cognitive reserve in this setting.

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