University of Wisconsin–Madison

Category: Research Study Highlight

Addressing Cochrane’s Review on Amyloid-Targeting Treatments for Alzheimer’s Disease

Amyloid-targeting monoclonal antibody treatments have ushered in a new era of Alzheimer’s disease therapies after decades of research and clinical trials. A recent review published by Cochrane, a global, independent, non-profit network of researchers, professionals, patients and carers regarded as a gold standard for producing and promoting trusted, high-quality health information, has a different perspective on these therapies. The review found these treatments produce “little to no difference” in cognition and offer few benefits while increasing risks for adverse effects. Drs. Cynthia Carlsson, a clinical trialist, David Wolk, a clinician, and Henrik Zetterberg, a biomarker and disease biology expert, join the podcast to break down the review and their concerns, as well as highlight how this review could impact clinical care, research and public policy.

Guests: Cynthia Carlsson, MD, MS, director, Wisconsin Alzheimer’s Institute, Clinical Core leader, Wisconsin Alzheimer’s Disease Research Center (ADRC), Louis A. Holland, Sr., Professor in Alzheimer’s Disease, geriatrician, University of Wisconsin (UW) School of Medicine and Public Health; David Wolk, MD, director, Penn ADRC, co-director, Penn Memory Center, co-director, Penn Institute on Aging, professor of neurology, University of Pennsylvania Perelman School of Medicine; and Henrik Zetterberg, MD, PhD, professor of neurochemistry, University of Gothenburg, visiting professor, UW–Madison and University College London, Biomarker Core co-leader, Wisconsin ADRC

New Study Examines the Effects of Food Insecurity on Dementia Risk

The latest Household Food Security report estimated that 13.7% of U.S. households experienced food insecurity in 2024. This lack of access to a nutritious diet can significantly affect health, so how does it then impact older adults’ health and their risk for cognitive impairment? Dr. Heejin Lee joins the podcast to share what food insecurity means, how it can affect a person’s overall health and what her study found about its effect on dementia and cognitive impairment, as well as resources for those experiencing food insecurity.

Guest: Heejin Lee, PhD, postdoctoral research fellow, department of nutrition, Harvard T.H. Chan School of Public Health

Unpacking the U.S. POINTER Study

The U.S. POINTER study is one of the first large-scale, randomized controlled clinical trials to focus on how lifestyle interventions impact dementia risk and cognitive decline. On a special bonus episode of Dementia Matters, Dr. Laura Baker joins the podcast to explain how the clinical trial came to be, what it found and what the next chapter of lifestyle intervention research and clinical trials looks like.

Guest: Laura Baker, PhD, professor, Gerontology and Geriatrics, Wake Forest University School of Medicine, principal investigator, U.S. POINTER Study

On the Pulse: How Resting Heart Rate Improves a Dementia Risk Score’s Accuracy

What if your heartbeat could help determine your dementia risk? The CAIDE dementia risk score has long helped clinicians estimate midlife risk for dementia using cardiovascular health factors, but its accuracy hasn’t been equal across populations. New research suggests that integrating resting heart rate meaningfully improves predictive performance across most racial groups. In this interview, Dr. Newman Sze and Shakiru Alaka join us to dig into how and why resting heart rate enhances CAIDE’s accuracy, what the data shows across different racial groups, and what this could mean for earlier, more equitable identification of dementia risk in both research and clinical settings.

Guests: Newman Sze, PhD, professor of health sciences, Brock University, Canada Research Chair in Mechanisms of Health and Disease, and Shakiru Alaka, MS, senior analyst, Canadian Institute for Health Information, data scientist, Western University

Could Managing Four Common Health Conditions Slow Cognitive Decline from Alzheimer’s?

Alzheimer’s disease isn’t always the only health condition a person faces, so how does treating other diseases impact the progression of Alzheimer’s? Researchers at the University of Arizona focused on four common health conditions – type two diabetes, hypertension, inflammation and dyslipidemia – which are known to increase the risk of developing Alzheimer’s disease, and set out to investigate whether those diagnosed with Alzheimer’s who received treatments for these four conditions also saw a delay in cognitive decline. Dr. Barb Bendlin joins the podcast to break down the findings from this research, as well as discuss the impact of personalized prevention strategies and combination therapies.

Guest: Barbara Bendlin, PhD, professor, Division of Geriatrics and Gerontology, University of Wisconsin (UW) School of Medicine and Public Health, deputy director, UW Center for Health Disparities Research (CHDR)

Taking Steps to Slow Decline: New Study Examines the Role of Physical Activity on Alzheimer’s Progression

10,000 – that’s the magic number of steps often recommended for a healthy lifestyle. With recent research looking into whether that number is an accurate benchmark for health, could the number of steps taken per day have an impact on brain health and, specifically, cognitive decline? That’s precisely what a new study from Harvard Medical School and Mass General Brigham sought to examine, looking at how physical activity, specifically step count, impacted cognitive decline for those living with Alzheimer’s disease. Dr. Bri Breidenbach and Sarah Lose join the podcast to break down the results of this new study, as well as share what current research says about the effect of other kinds of physical activity, such as different intensity exercises, on the brain and Alzheimer’s progression.

Guests: Bri Breidenbach, PhD, scientist, exercise physiologist, Okonkwo Lab, and Sarah Lose, MS, research program manager, exercise physiologist, Okonkwo Lab, UW School of Medicine and Public Health

Talking TBI: The Impact of Traumatic Brain Injuries on Cognitive Decline

Traumatic brain injuries (TBI) like concussions are not uncommon, especially in children and older adults. These injuries can have both short-term and lasting effects on the brain, but what about their impact on cognitive function? Dr. Deling He of UW–Madison’s Cognitive-Communication in Aging and Neurogenic Disorders Laboratory (CCANDL) lab joins the podcast to discuss her research on the connections between TBI, speech pathology and cognition and what her study findings mean for people with a history of TBI.

Guest: Deling He, PhD, postdoctoral research associate, Cognitive-Communication in Aging and Neurogenic Disorders Laboratory, Department of Communication Sciences and Disorders, UW–Madison

Study Finds COVID-19 Can Cause Build-up of Alzheimer’s-Related Proteins in Eyes and Brain

What do COVID-19 brain fog and ophthalmology have to do with Alzheimer’s disease? There may be more connections than one might think. Dr. Sean Miller is one of the scientists behind a recent study that used retinal tissue to investigate the links between COVID-19 infections and the build-up of amyloid and other indicators of Alzheimer’s disease in the central nervous system. Dr. Miller joins the podcast to discuss his research and its implications for COVID and dementia diagnosis and treatments in the future.

Guest: Sean Miller, PhD, research scientist, department of ophthalmology and visual science, Yale School of Medicine

Making Sense of Microplastics: New Research Looks at How Microplastics Build Up in the Brain and Body

Microplastics are a growing concern in the field of environmental health, but their impact on the brain is only beginning to be understood. Joining the podcast to share the latest research on these tiny particles, which have been found in the brain and other parts of the body, is Dr. Matthew Campen, a leading researcher in the field whose work is helping to uncover how environmental exposures like the accumulation of microplastics could affect neurological health, dementia risk and more.

Guest: Matthew Campen, PhD, MSPH, director, New Mexico Center for Metals in Biology and Medicine, director, University of New Mexico Clinical and Translational Sciences Center KL2 Mentored Career Development Program, deputy director, Training Core director, UNM Metal Exposure and Toxicity Assessment on Tribal Lands in the Southwest (UNM METALS) Superfund Research Program Center, professor, University of New Mexico Health Sciences Center

Helpful or Harmful? New Study Looks at the Impact of Technology Use on Cognition

Smartphones and technology are ubiquitous in nearly every aspect of our lives, but is technology helping or hurting us when it comes to memory and cognition? Dr. Jared Benge, neuropsychologist and associate professor from the University of Texas at Austin, joins the podcast to discuss his research into how technology and smartphone use impacts the brain, how digital technology can be used to help individuals with cognitive impairment and what his findings mean for the future.

Guest: Jared Benge, PhD, ABPP, clinical neuropsychologist, Comprehensive Memory Center, UT Health Austin, associate professor, Dell Medical School, University of Texas at Austin

Facing the Facts: Looking at the Alzheimer’s Association’s 2025 Annual Report

What is the current impact of Alzheimer’s disease and related dementias on the United States? To best understand its significance in 2025, we can turn to the Alzheimer’s Association’s Alzheimer’s Disease Facts and Figures report, a comprehensive resource that highlights the effect of Alzheimer’s on individuals, care partners, health care professionals and more. Dr. Heather Snyder from the Alzheimer’s Association joins the podcast to discuss key trends and findings from this year’s report, including insights from their special report on Americans’ attitudes toward early detection and new monoclonal antibody treatments.

Guest: Heather Snyder, PhD, senior vice president, medical & scientific relations, Alzheimer’s Association

Paying the Price: The Cost of Dementia in 2025

How much does it cost to live with dementia in the United States? The hidden costs are often overlooked, but these numbers and trends are important to understand in order to inform the public and effectively allocate resources. Dr. Julie Zissimopoulos leads the United States Cost of Dementia Project, where they recently published a report on the total cost of dementia in 2025. Dr. Zissimopoulos joins the podcast to discuss the report’s findings and analyze what this means for patients and families, as well as for public policy, in the future.

Guest: Julie Zissimopoulos, PhD, professor, Sol Price School of Public Policy, University of Southern California (USC), co-lead, United States Cost of Dementia Project, co-director, Aging and Cognition Research Program, USC Schaeffer Center, director, Alzheimer’s Disease and Alzheimer’s Disease Related Dementias Resource Center for Minority Aging Research (USC AD/ADRDRCMAR), Center for Advancing Sociodemographic and Economic Study of Alzheimer’s Disease and Related Dementias (CeAES-ADRD)

Aging in Place: Addressing the Challenges of Living Alone with Dementia

It’s estimated that 4.3 million older adults across the United States live alone with cognitive impairment. How do these individuals navigate the challenges and concerns that arise due to these memory and thinking changes, and what recommendations are there to support them as they continue living independently? Dr. Elena Portacolone joins Dementia Matters to discuss her research focused on identifying these challenges and developing equitable policies and programs for older adults living alone with cognitive impairment in the United States and worldwide.

Guest: Elena Portacolone, PhD, MBA, MPH, principal investigator, Living Alone with Cognitive Impairment Project, professor of sociology, Institute for Health & Aging, Pepper Center Scholar, Division of Geriatric Medicine, University of California San Francisco (UCSF)

Could AI Identify Alzheimer’s Risk Factors from Electronic Health Records?

With the recent surge in artificial intelligence and machine learning technology, one of the most exciting fields it could revolutionize is health care and, more specifically, the field of cognitive care and research. Dr. Marina Sirota and Alice Tang join the podcast to share their research on how AI could be used to predict one’s risk of developing Alzheimer’s disease based on their electronic health records. They also discuss what needs to be done to improve these algorithms and other ways this technology could be used in Alzheimer’s disease research.

Guests: Marina Sirota, PhD, associate professor, University of California San Francisco (UCSF), principal investigator, Sirota Lab, and Alice Tang, MD/PhD student, University of California San Francisco, postdoctoral fellow, Sirota Lab