Study: Proteins Tell 2 Conditions Apart

New research offers a possible way to tell apart two conditions with similar symptoms. One disorder is chronic fatigue syndrome. The other is neurologic post-treatment Lyme disease. This is a set of symptoms that linger after the infection that caused Lyme disease is treated. People with both conditions feel fatigue. Many also say they have problems with thinking. The new study included 43 people with chronic fatigue and 25 with lingering Lyme disease. They were compared with 11 healthy people. Researchers looked at spinal fluid from everyone. In people with chronic fatigue, they found 738 proteins in spinal fluid that were not found in the other groups. People with lingering Lyme disease had 692 proteins not found in the other groups. This is the first time that body substances have been found to distinguish between the two conditions.