Diagnosis and Causes Archives

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What the latest research shows about the causes and detection of dementia: Testing for memory loss, contributing factors, and the growing burden of Alzheimer’s disease.

Brain Changes Detected 20 Years Before Alzheimer’s Symptoms

Scientists increasingly recognize Alzheimer’s as a disease process that begins years before symptoms of dementia become evident. Now, new research has found changes in the brain and body up to 20 years before Alzheimer’s symptoms arise. The research, published in the journal … Continue reading

Newly Identified Gene Triples Alzheimer’s Risk

Researchers have discovered a new genetic defect that increases the risk of developing late-onset Alzheimer’s, by far the most common form of the disease, by threefold or more. The mutated gene is known to play a role in the immune … Continue reading

A Range of Diagnostic Tests for Alzheimer’s

Various tests for diagnosing Alzheimer’s disease have become available in recent years, although they remain imperfect diagnostic tools. Now researchers at Duke University report that using a combination of tests – two types of brain scans along with analysis of … Continue reading

Football Players at Increased Alzheimer’s Risk

Professional football players are at increased risk of dying from Alzheimer’s disease, a new study reports. The findings are consistent with earlier reports that concussions and other head injuries that damage the brain can raise the risk of Alzheimer’s and … Continue reading

Herbal Remedy Ginkgo Fails to Stem Alzheimer’s Slide

Much has been made of the promises of the herbal remedy ginkgo biloba for keeping the memory sharp in old age. But a rigorous new study of the herb had disappointing results: ginkgo failed to prevent the onset of Alzheimer’s … Continue reading

High Blood Sugar Levels Tied to Brain Shrinkage

Older men and women who have blood sugar levels at the high end of normal appear to have shrinkage of the brain in areas critical for memory, according to a new report. The findings give new weight to concerns that … Continue reading

Delirium Spurs Alzheimer’s Decline

People with Alzheimer’s who are hospitalized often develop delirium, a period of acute disorientation that may last for days. Now, in the longest-running study of its type, researchers found that people with Alzheimer’s who develop delirium may show an accelerated … Continue reading

Delirium Increases Risks in Alzheimer’s Patients

A study of people with Alzheimer’s disease found that a hospital stay greatly increased the risk of further decline, including the need to enter a nursing home and an increased risk of dying. About half of those who were hospitalized … Continue reading

How the APOE-E4 Gene May Raise Alzheimer’s Risk

People who carry the APOE-E4 gene, the most common known genetic contributor to Alzheimer’s, are at increased risk of developing the disease, though having the gene is no guarantee that you’ll get Alzheimer’s. Now scientists are uncovering new clues about … Continue reading

Alzheimer’s Tied to Insulin Problems in the Brain

People with diabetes lack the ability to make or use insulin, a hormone that helps the body to maintain healthy levels of glucose, or blood sugar. Now researchers have found that problems using insulin in the brain may contribute to … Continue reading