Improving Memory Through Better Sleep in Community-Dwelling Older Adults: A Tai Chi Intervention Study.

Objectives: The relationship between sleep and memory has been well documented. However, it remains unclear whether a mind-body exercise, that is, Tai Chi exercise, can improve memory performance in older adults by improving their subjective and objective sleep.

Methods: A randomized controlled trial was conducted with participants (M = 67.

The relationship of social isolation and sleep in older adults: evidence from cross-sectional and longitudinal studies.

Objectives: This study aimed to explore the relationship between social isolation and sleep in later life and the role of loneliness in this relationship.

Methods: In Study 1, we conducted a cross-sectional analysis of the correlation between social isolation and sleep in community-dwelling older adults ( = 108). This relationship was assessed using subjective and objective measures.

The Effect of Nighttime Snacking on Cognitive Function in Older Adults: Evidence from Observational and Experimental Studies.

Evidence shows that supplementary snacking could provide older adults with nutrients that cannot be obtained through three meals a day. However, whether and how supplementary snacking, especially nighttime snacking, affects older adults' cognitive function remain unclear. The present study examined the effect of nighttime snacking on cognitive function for older adults.

Older Adults' Subjective Cognitive Decline Correlated with Subjective but Not Objective Sleep: A Mediator Role of Depression.

This study examined the relationship between older adults' subjective versus objective sleep and subjective cognitive decline (SCD), and explored the role of depression on this association. One hundred and four community-dwelling older adults underwent a week of actigraphic sleep monitoring, and completed a series of neuropsychological screeners. Older adults'SCD score was positively correlated with subjective insomnia, but not with objective sleep parameters.

[Vasoactive intestinal peptide expression and its clinical significance in gastric adenocarcinoma].

Objective: To investigate the expression of vasoactive intestinal peptide (VIP) in gastric adenocarcinoma, and to evaluate the correlation of VIP level with clinical pathologic parameters.

Methods: The level of VIP in sera from gastric adenocarcinoma patients and healthy people was investigated by ELISA. Moreover, the differential gene expression between gastric adenocarcinoma, gastric dysplasia, and the corresponding normal gastric mucosa were determined by RT-PCR.