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Glucose Level After a Meal Affects Heart Health
What is the problem and what is known about it so far?
Many people with type 2 diabetes have high blood glucose levels after eating. This high after-meal (postprandial) glucose level is linked to cardiovascular disease (disease of the heart and blood vessels), because high blood glucose is harmful to blood vessels. It's not known whether high blood glucose affects how well oxygen is delivered to the heart muscle—an important factor in heart and blood vessel disease. Why did the researchers do this particular study?
They wanted to see if high after-meal blood glucose levels affected the ability of oxygen to reach the heart muscle. Who was studied?
Twenty people with type 2 diabetes with no signs of blood vessel damage. The participants were compared to 20 healthy volunteers without diabetes. How was the study done?
Participants had testing of their heart function after they ate a standardized meal. They also took blood tests. What did the researchers find?
Less oxygen is delivered to the heart when people have a high after-meal blood glucose level. What were the limitations of the study?
The study included a small number of participants. Study participants may have had other heart conditions that might have influenced the results. What are the implications of the study?
A high blood glucose level after meals may be an early warning sign that a person will get heart and blood vessel disease.
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