Visceral pain is often described as generalized aching or squeezing. It is caused by compression in and around the organs, or by stretching of the abdominal cavity. Sometimes visceral pain may radiate to other areas in the body, making it even harder to pinpoint its exact location.
Data from the largest analysis to date of amyloid plaques showed they can appear 20 or 30 years before dementia symptoms.
They found that DA has a structure that's similar to a substance that makes beta-amyloid proteins. Too much amyloid that clumps together to form plaques are a tell-tale marker of Alzheimer's disease in the brain. The researchers wanted to see whether DA would clump those proteins in a similar fashion to form plaques.