Art and Science of Laboratory Medicine

Art and Science of Laboratory Medicine

Tuesday, January 28, 2014

Nipping diabetes in the blood

In healthy people, glucose is absorbed from the blood for use by various tissues. But the cells of people with type-2 diabetes are resistant to insulin, which is produced by the pancreas and is central to regulating carbohydrate and fat metabolism in the body. These individuals have higher-than-normal blood glucose levels. People with prediabetes have blood glucose levels somewhere between normal and diabetic.

Blood glucose can be directly tested in several ways, but these tests only provide a snapshot. To get a picture of blood glucose levels over time, doctors test for levels of glycated hemoglobin, or A1c, in the blood. When blood glucose levels are high, more A1c is formed. So A1c serves as a biomarker, indicating average blood glucose levels over a two- to three-month period.

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Nipping diabetes in the blood 

Source: Science Daily
Image credits: Hemocue


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