fNIRS as a biomarker for individuals with subjective memory complaints and MCI.

Introduction: Identifying individuals at risk of developing dementia is crucial for early intervention. Mild cognitive impairment (MCI) and subjective memory complaints (SMCs) are considered its preceding stages. This study aimed to assess the utility of functional near-infrared spectroscopy (fNIRS) in identifying individuals with MCI and SMC.

Prospective association between social isolation, loneliness and lung function among Chinese middle-aged and older adults.

Objective: Previous research has highlighted a heightened occurrence of social isolation and loneliness in older adults diagnosed with chronic lung diseases. Nevertheless, there exists a dearth of studies that have explored the influence of impoverished social relationships on lung function. This study aimed to examine the longitudinal association between social isolation, loneliness and lung function over 4 years among middle-aged and older Chinese adults.

Pathophysiology characterization of Alzheimer's disease in South China's aging population: for the Greater-Bay-Area Healthy Aging Brain Study (GHABS).

Introduction: The Guangdong-Hong Kong-Macao Greater-Bay-Area of South China has an 86 million population and faces a significant challenge of Alzheimer's disease (AD). However, the characteristics and prevalence of AD in this area are still unclear due to the rarely available community-based neuroimaging AD cohort.

Methods: Following the standard protocols of the Alzheimer's Disease Neuroimaging Initiative, the Greater-Bay-Area Healthy Aging Brain Study (GHABS) was initiated in 2021.

Dyadic effects of cognitive function on depressive symptoms among middle-aged and older Chinese couples.

Background: Although cognitive function and depressive symptoms have been suggested to be closely related, less attention has been paid to this association within married couples. This study explored the reciprocal dyadic relationship between cognitive function and depressive symptoms over time.

Methods: This study used four waves of data from the China Health and Retirement Longitudinal Study and analyses were restricted to middle-aged and older couples aged 45 or older.

Too depressed to breathe: The longitudinal association between depressive symptoms and lung function among general middle-aged and older adults.

Objective Most previous studies focusing on the association between depressive symptoms and lung function were conducted in patients with chronic lung diseases. This study aims to investigate the association of depressive symptoms with lung function among general Chinese middle-aged and older adults. Participants This study used data from the China Health and Retirement Longitudinal Study (CHARLS).

Social isolation and cognitive decline among older adults with depressive symptoms: prospective findings from the China Health and Retirement Longitudinal Study.

Objectives: Identifying potentially modifiable risk factors of cognitive decline among people with depressive symptoms could provide insight into strategies for improving treatment effect of depression and prevention of dementia. Quite a few studies have examined the association between social isolation and cognitive function directly among depressed older adults and the results are still mixed. The aim is to examine the association of social isolation and cognitive decline among older adults with depressive symptoms in a non-Western country.

Social isolation and depression onset among middle-aged and older adults in China: Moderating effects of education and gender differences.

Background: Most studies exploring the association between social isolation and depression tend to focus on Western countries. The primary aim of this longitudinal study was to examine the association between social isolation and depression onset among middle-aged and older adults in China.

Methods: Data on 6,817 participants (mean age = 57.

Social isolation, loneliness and functional disability in Chinese older women and men: a longitudinal study.

Objective: This study investigated whether loneliness or social isolation is associated with the onset of functional disability over 4 years among Chinese older populations.

Setting And Subjects: This study used data from the China Health and Retirement Longitudinal Study (CHARLS). Functional status was assessed by activities of daily living (ADL) and instrumental activities of daily living (IADL).

Preparation and characterization of a titanium bonding porcelain.

The titanium bonding porcelain was synthesized through normal melting-derived route using borate-silicate system. The porcelain was characterized by thermal expansion, X-ray diffraction, scanning electron microscope and cytotoxicity tests. The results of X-ray diffraction showed that the main phase of the bonding porcelain was SnO2.