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The effect of diabetes mellitus in the elderly on memory function in patients with mild cognitive impairment / 中华老年医学杂志
Chinese Journal of Geriatrics ; (12): 472-477, 2022.
Article in Chinese | WPRIM | ID: wpr-933108
ABSTRACT

Objective:

To investigate the effect of diabetes mellitus in the elderly on memory function in patients with mild cognitive impairment(MCI).

Methods:

Totally 449 community residents were selected for a 2-year follow-up survey.Montreal Cognitive Assessment(MoCA)and Mini-Mental State Examination(MMSE)were selected for overall cognitive function assessment.Fuld Object Memory(FOM)and Digital Span Test(DST)were used to evaluate delayed recall and instantaneous memory.Demographic data such as gender, age, education level, marital history, annual income, blood pressure, medical history etc.were collected.The glycosylated hemoglobin, fasting insulin, and carotid artery intima-media thickness were checked regularly.All subjects were grouped into non-diabetes mellitus normal cognitive group(NDM-NC group), non-diabetes mellitus mild cognitive impairment group(NDM-MCI group), diabetes mellitus normal cognitive group(DM-NC group)and diabetes mellitus mild cognitive impairment group(DM-MCI group).

Results:

In cross-sectional observation, the first, second, and last recall scores in the FOM showed a decreasing trend in the DM-MCI group, showed a word "U" -shaped fluctuation trend in the DM-NC group and the NDM-MCI group, and showed no significant change in the NDM-NC group.There were no significant differences in DST anterior-backward test scores between the DM-MCI group and NDM-MCI group(all P>0.05).Through longitudinal follow-up and two-by-two comparison with the other three groups, the average value of glycosylated hemoglobin in the DM-MCI group(6.78±0.60)% was the highest, and the differences were statistically significant( P<0.05).During follow-up, the average carotid intima-media thickness(CIMT)was higher in the DM-MCI group(1.03±0.20)mm than in NDM-NC group(0.89±0.20)mm( P<0.05), and the difference was statistically significant.Comparing with the other three longitudinal follow-up groups, the CIMT thickening speed in DM-MCI group was fastest.

Conclusions:

Elderly DM patient population have a higher prevalence of MCI, and their memory function fluctuates or declines significantly.Therefore, regular detection of memory function is conducive to delaying the progression of DM and MCI.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Geriatrics Year: 2022 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: Chinese Journal of Geriatrics Year: 2022 Type: Article