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High blood glucose affects memory

Higher average blood glucose levels or high A1C levels have been linked to lower cognitive functioning, including poor memory and thinking, according to a new study.


Video: What is the diabetes A1C test?


The A1C MIND study

The research released is part of the ongoing Memory in Diabetes (MIND) study, which is part of the Action to Control Cardiovascular Risk in Diabetes (ACCORD) trial.

The researchers looked at the link between A1C and fasting plasma glucose levels to performance on four cognitive tests. The written and verbal tests assessed a range of cognitive factors, including memory and thinking.

Researchers found that patients with high levels of A1C had significantly worse results on all cognitive tasks. Their ability was lower for memory, speed and the ability to manage multiple tasks at the same time.


Researchers conclusion

Lead researcher Dr. Cukierman-Yaffe from the Tel-Aviv University in Israel said, “Even a mild impairment in cognitive function is of concern for people with type 2 diabetes.”

The researchers wrote in conclusion, “Higher A1C levels are associated with lower cognitive function in individuals with diabetes. The effect of glucose lowering on cognitive function will be determined by the ongoing ACCORD-MIND trial.”

The study was published in the journal Diabetes Care.


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