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A Method for Manipulating Blood Glucose and Measuring Resulting Changes in Cognitive Accessibility of Target Stimuli

A Method for Manipulating Blood Glucose and Measuring Resulting Changes in Cognitive Accessibility of Target Stimuli

Published on: August 12, 2016

Long-Term Glycemic Exposure, Control Status and Cognitive Function in Older Adults: A Longitudinal Study.

Shuyao Su¹, Shiyu Zhou^1,2, Tao Zhou¹

¹Department of Epidemiology, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Diabetes, Obesity & Metabolism

|May 11, 2026

Summary

High cumulative fasting blood glucose (cumFBG) negatively impacts cognitive function in older adults, particularly attention. Sustained glycemic control in diabetics helps maintain cognitive health.

Keywords:

cognitive function cumulative exposure fasting blood glucose glycemic control

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Area of Science:

Gerontology
Neuroscience
Endocrinology

Background:

Long-term glycemic exposure is a critical factor in aging-related cognitive decline.
Understanding the relationship between glycemic control and cognitive function is vital for public health.

Purpose of the Study:

To investigate the association between cumulative fasting blood glucose (cumFBG), glycemic variability, and cognitive function in older adults.
To assess the impact of glycemic control status on cognitive performance in individuals with diabetes.

Main Methods:

Utilized data from 26,108 participants in the Prediction for Atherosclerotic Cardiovascular Disease Risk in China project.
Calculated 10-year cumFBG and glycemic variability, identifying FBG trajectories.
Assessed global and domain-specific cognition using Mini-Mental State Examination, analyzing associations with regression models.

Main Results:

Nonlinear association found between cumFBG and global cognition/cognitive impairment.
Higher cumFBG (≥1260 mg/dL×year) linked to lower cognitive scores and increased impairment risk.
Attention was most susceptible to declines; increasing FBG trajectories exacerbated impairment risk.
Consistent glycemic control in diabetics preserved cognitive function comparable to non-diabetics.

Conclusions:

Elevated cumFBG, especially with increasing trends, adversely affects cognitive function in older adults.
Sustained glycemic control is crucial for mitigating the negative impact of diabetes on cognition.