University of Wisconsin–Madison

Category: Research Study Highlight

Smartphone Screenings: Assessing Memory and Cognition using a Mobile App

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What if you could test your cognition from the comfort of your own home using a smartphone? Drs. David Berron and Lindsay Clark have spent years researching cognitive neuroscience, culminating in a 2024 published study investigating the effectiveness of a smartphone app as a tool for detecting cognitive impairment outside of a clinic or research setting. Drs. Berron and Clark join Dementia Matters to discuss how the app and tests were developed, the benefits and drawbacks of this approach  and the implications of remote testing in the healthcare field.

Guests: David Berron, PhD, Clinical Cognitive Neuroscience research group leader, German Center for Neurodegenerative Diseases (DZNE), and Lindsay Clark, PhD, licensed neuropsychologist, clinical core co-lead, Wisconsin Alzheimer’s Disease Research Center (ADRC), assistant professor, Division of Geriatrics and Gerontology, University of Wisconsin School of Medicine and Public Health

Gut Feelings: The Links Between Gut Health and Alzheimer’s Disease

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An expanding field of research is looking at how the gut affects different parts of people’s health, but how does it affect brain health? Drs. Barb Bendlin and Tyler Ulland join the podcast to talk about their 2023 study, which suggests a link between gut health, aging and changes related to Alzheimer’s disease. They discuss their findings on how gut inflammation could impact brain health, as well as explain what it means to have good gut health and how food, medications, where one lives and other factors can impact the gut microbiome.

Guests: Barbara Bendlin, PhD, professor, Division of Geriatrics and Gerontology, deputy director, University of Wisconsin (UW) Center for Health Disparities Research, and Tyler Ulland, PhD, associate professor of pathology and laboratory medicine, UW School of Medicine and Public Health, leader, Ulland Lab

Predictive Personalities: How Personality Traits Influence Dementia Risk

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While genetics and lifestyle can influence one’s risk of developing Alzheimer’s disease, other unexpected factors can shift the possibility. One of these factors is personality. Dr. Emorie Beck joins Dementia Matters to share her research on the link between personality and Alzheimer’s risk. Dr. Beck breaks down the Big Five traits that make up someone’s personality and their effects on a person’s cognitive health. 

Guest: Emorie Beck, PhD, assistant professor, University of California, Davis

Be BOLD: Detecting Dementia Early Through Public Health Initiatives

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When it comes to dementia diagnoses, the earlier, the better, but why is it difficult to detect dementia in its early stages? Moreover, what strategies can be used to improve dementia detection? Dr. Josh Chodosh joins the podcast to answer these questions and discuss how public health initiatives could improve dementia diagnoses. He also talks about his work with the Building Our Largest Dementia (BOLD) Center, a public health center focused on early detection and ending the stigma around dementia.

Guest: Joshua Chodosh, MD, director, division of geriatric medicine and palliative care, Michael L. Freedman professor of geriatric research, Grossman School of Medicine, New York University, staff physician, VA Harbor Healthcare System

Listen Up! The Connections Between Hearing Loss, Hearing Interventions and Cognitive Decline

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Hearing loss affects roughly 15.5% of Americans 20 years and older. While the majority of these individuals experience mild hearing loss, the prevalence and severity of hearing loss increases with age. What does this sensory change mean for dementia risk, and can this risk be prevented through interventions like hearing aids? Dr. Frank Lin joins the podcast to discuss the relationship between hearing loss and dementia and share findings from the Aging and Cognitive Health Evaluation in Elders, or ACHIEVE, study.

Guest: Frank Lin, MD, PhD, director, Cochlear Center for Hearing and Public Health, Professor of Otolaryngology, Medicine, Mental Health, and Epidemiology, Johns Hopkins University

Could Green Tea Hold the Key to New Alzheimer’s Treatments?

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Dr. Paul Seidler joins the podcast to discuss his recent study looking at the connection between molecules in green tea and tau proteins. He also discusses the impact those molecules have on preventing cognitive decline and how these findings could lead to new strategies for treating Alzheimer’s disease.

Guest: Paul Seidler, PhD, assistant professor, University of Southern California Mann School of Pharmacy and Pharmaceutical Sciences

The Impact of Social Isolation on Dementia Risk in Older Adults

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In May 2023, the U.S. Surgeon General, Dr. Vivek Murthy, released an advisory calling attention to the public health crisis of loneliness and social isolation in the U.S. With this widespread issue affecting such a broad population, how does social isolation impact older adults? Dr. Alison Huang joins the podcast to share insights from her study on the relationship between social isolation and the risk of dementia in older adults. Using data from a nine-year National Health and Aging Trends Study (NHATS), she discusses how factors like living alone, limited social networks and reduced activity participation contribute to increased dementia risk.

Guest: Alison Huang, PhD, MPH, senior research associate, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health

Crosswords or Computers: Which is Better for Cognitive Engagement?

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Cognitive engagement is vital to keeping your brain healthy since it can slow shrinkage and induce neuroplasticity. While modern technology offers many new tools and games to keep your brain active, are they better than traditional puzzles like crosswords? Dr. Murali Doraiswamy of Duke University joins the podcast to talk about his recent study, in collaboration with principal investigator Dr. Dev Devanand of Columbia University, on the effects of daily crossword puzzles on the brain health of older adults in comparison to daily computerized games. 

Guest: P. Murali Doraiswamy, MBBS, FRCP, director, Neurocognitive Disorders Program, physician scientist, Duke Institute for Brain Sciences, professor of psychiatry and medicine, Duke University School of Medicine, co-author, The Alzheimer’s Action Plan

Studies Look at Generational Differences and Associations between Cognition, Sensory Changes and Blood Biomarkers

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Dr. Natascha Merten joins the podcast to discuss her study focused on trends in cognitive function across generations. Merten also explains her research on the associations between sensory and motor functions and blood-based biomarkers for neurodegeneration and dementia.

Guest: Natascha Merten, PhD, MS, director, Beaver Dam Offspring Study-Neurocognitive Aging Study, assistant professor, Departments of Population Health Sciences and Medicine, University of Wisconsin–Madison

Bioenergetics: How Mitochondria Affects Alzheimer’s Disease and Aging

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It’s generally known that mitochondria are the powerhouse of cells, but did you know they can play a significant role in aging processes? Through the field of bioenergetics, scientists are looking to study how changes in mitochondria affect us as we age and their connection to Alzheimer’s disease. Dr. Russell Swerdlow joins the podcast to discuss the field of bioenergetics and how mitochondria can impact Alzheimer’s disease and other aspects of aging.

Guest: Russell Swerdlow, MD, director, Kansas Alzheimer’s Disease Research Center, director, Heartland Center for Mitochondrial Medicine, professor of neurology, University of Kansas

Study Shows Do-Not-Resuscitate Orders Can Lead to Worse Care, Increase Death Rates

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A do-not-resuscitate, or DNR, order is used to indicate when a patient chooses to forgo resuscitation, however recent analysis shows that multiple studies have connected the presence of DNR orders to elevated death rates, poorer medical care, and negative health outcomes. Dr. Jonathan Baktari joins the podcast to discuss the findings from this analysis, how it can impact individuals with Alzheimer’s disease and dementia, and how these concerns can be addressed.

Guest: Jonathan Baktari, MD, CEO, chief medical officer, e7 Health

Alcohol and the Brain: One Drink a Day Associated with Brain Shrinkage

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There are many conflicting studies on how alcohol consumption can impact a person’s health, with some studies suggesting light drinking can protect against coronary heart disease and others concluding that drinking can increase your risk for cancer. What does research say about alcohol and the brain? Dr. Remi Daviet joins the podcast to discuss his latest study that found that just one alcoholic drink a day was associated with brain shrinkage, and drinking more could increase that rate exponentially over time.

Guest: Remi Daviet, PhD, assistant professor, Wisconsin School of Business

Harnessing the Power of Autophagy to Treat Alzheimer’s Disease

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The Puglielli lab at the University of Wisconsin School of Medicine and Public Health has found a way to manipulate autophagy — a process where cells clean out damaged materials — to rid the brain of toxic proteins like amyloid and tau. Researchers hope to use the power of this process to develop future treatments for Alzheimer’s disease and other diseases of aging. Luigi Puglielli joins the podcast to discuss his team’s research over the past 15 years, why the scientific process can take years to turn ideas into possible treatments, and how he hopes this research can be used in the future.

Guest: Luigi Puglielli, MD, PhD, professor of medicine, University of Wisconsin School of Medicine and Public Health

Nasal Vaccine for Alzheimer’s Disease Enters Clinical Trial

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In November 2021, Brigham and Women’s Hospital in Boston launched the first human trial of a nasal vaccine for Alzheimer’s disease. Nearly 20 years of research went into developing the vaccine, which uses the immune system to clear Alzheimer’s disease-related proteins from the brain. Lead researcher Dr. Howard Weiner joins the podcast to discuss the science behind the vaccine and how it could introduce new ways of treating other neurodegenerative diseases in the future.

Guest: Howard Weiner, MD, professor of neurology, Harvard Medical School, co-director, Ann Romney Center for Neurologic Diseases, Brigham and Women’s Hospital

New Research Shifts Thinking on Metabolism and Aging

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There are many common beliefs about metabolism. Perhaps you’ve heard that a person’s metabolism slows around middle age, or that a woman’s metabolism is slower than a man’s. However widespread these beliefs are, recent research from the journal Science has found that these conceptions of metabolism are wrong. In a groundbreaking study, researchers have found that metabolism goes through four key phases over our lives, only beginning to slow around age 60. This, among other findings, are now changing how we think about human physiology and how we think about aging. Breaking down this new research and his perspective article on the findings, Dr. Rhoads describes our shifting understandings of metabolism and how it impacts chronic diseases like Alzheimer’s disease as we age.

Guest: Tim Rhoads, PhD, assistant scientist, Rozalyn Anderson laboratory, University of Wisconsin School of Medicine and Public Health