At Age 8, DIAN Is Churning Out Data and Growing into a Movement

One February 25, 2015, Lori DeMoe McIntyre died of Alzheimer’s disease at age 56, after participating in DIAN research for nearly eight years. Her daughter Jessica McIntyre memorialized her mom with a large tattoo of Lori’s amyloid PIB PET scan. The younger McIntyre and one of her sisters participate in DIAN and DIAN-TU. [Courtesy of Jessica McIntyre, art by Joey Borger, Certified Customs, Denver, Colorado.]

Part 1 of a five-part series. At age 8, DIAN has grown up. In 2008, when the Dominantly Inherited Alzheimer’s Network formally began to study autosomal-dominant AD, the notion of assembling globally dispersed families afflicted with this rare form of AD into a standing research platform seemed radical to observers. In theory, the idea of […]

Cirrito receives MetLife award for Alzheimer’s research

John Cirrito, PhD

Researcher is known for developing a way to measure levels of amyloid beta in brain John Cirrito, PhD, has been honored by the MetLife Foundation for his work measuring levels in the brain of amyloid beta, a protein linked to the neural degeneration of Alzheimer’s disease. John Cirrito, PhD, an associate professor of neurology at […]

$4 million grant expands major study to find Alzheimer’s prevention treatments

Dean DeMoe, a participant in the Dominantly Inherited Alzheimer Network Trials Unit (DIAN-TU) study at Washington University, receives AV1451 — a radiopharmaceutical — from imaging technologist Holly Karsch. AV1451 binds to tau protein in the brain. (Photo: Judy Martin Finch)

Investigators will accelerate drug testing, develop new diagnostic measures. Washington University School of Medicine in St. Louis has received a $4.3 million award from the Alzheimer’s Association to expand a major international clinical trial evaluating whether drugs can prevent Alzheimer’s disease in patients genetically predisposed to develop the devastating disease at a young age. The […]

New insight into role of amyloid beta in Alzheimer’s disease

A new technique for measuring levels in the brain of amyloid beta, a key protein associated with Alzheimer’s disease, would help scientists design treatments to limit its accumulation. Carla Yuede, PhD, and John Cirrito, PhD, look at the tiny probe they used to measure the damaging protein. Credit: Robert Boston

New Alzheimer’s disease research details a technique that speedily measures levels in the brain of a damaging protein fragment, and insight into why mutations in a specific gene increase the risk of developing the disease. Both studies, from researchers at Washington University School of Medicine in St. Louis, are available online in the Journal of […]

An Army Buddy’s Call For Help Sends A Scientist On A Brain Injury Quest

When Chris Moroski was hurt in 2005, “head injuries weren’t really a thing,” he recalls. “No one really considered why I was vomiting all the time. No one considered that it was probably from a concussion.” Ellen Webber for NPR

Katherine Du/NPRThe first time Kit Parker’s phone rang, everything seemed fine. It was January 2006, and Parker’s old Army buddy Chris Moroski was calling to say hi. Parker and Moroski had jumped out of airplanes together in the 1990s when they were paratroopers in the National Guard. But after the attacks on Sept. 11, Parker […]

Obscure Disease May Offer Backdoor to New Treatments for Alzheimer’s and Other Killers (Links to an external site)

Research on Alzheimer’s has focused largely on another protein called amyloid beta, which clusters into “plaques” in the brain. But there is growing interest in tau’s role. Credit: GerryShaw via Wikimedia Commons CC by 4.0

About 100 times rarer than Parkinson’s, and often mistaken for it, progressive supranuclear palsy afflicts fewer than 20,000 people in the U.S.—and two thirds do not even know they have it. Yet this little-known brain disorder that killed comic actor Dudley Moore in 2002 is quietly becoming a gateway for research that could lead to […]

Brain imaging links Alzheimer’s decline to tau protein

A study using a new PET imaging agent shows that measures of tau protein in the brain more closely track cognitive decline due to Alzheimer’s disease compared with long-studied measures of amyloid beta. More red color indicates more tau protein. The image on the left shows the average tau accumulation in the brains of cognitively normal people, averaged over many individuals. The image on the right shows the average amount of tau buildup in the brains of multiple people with mild Alzheimer’s symptoms. Scanning multiple individuals shows that the intensity of tau deposits correlates with the severity of cognitive dysfunction. (Image: Matthew R. Brier)

Tau is better marker of progression to Alzheimer’s disease than amyloid beta A buildup of plaque and dysfunctional proteins in the brain are hallmarks of Alzheimer’s disease. While much Alzheimer’s research has focused on accumulation of the protein amyloid beta, researchers have begun to pay closer attention to another protein, tau, long associated with this […]

Problems finding your way around may be earliest sign of Alzheimer’s disease, study suggests

Participants in this Alzheimer’s disease study used a joystick to navigate a virtual maze and locate landmarks, such as this bookcase. (Image courtesy of Denise Head)

Navigation skill test could diagnose brain changes long before memory fails Long before Alzheimer’s disease can be diagnosed clinically, increasing difficulties building cognitive maps of new surroundings may herald the eventual clinical onset of the disorder, finds new research from Washington University in St. Louis.“These findings suggest that navigational tasks designed to assess a cognitive […]