Digital Commons Network^™

Association Between Caregiver Status And Physical And Mental Health Among National Senior Games Athletes, Chibuzo Uchechukwu Victor Obasi

Graduate Research Theses & Dissertations

As the population ages, more people rely on informal caregivers, which puts many older adults at risk for health problems. Caregiving can be meaningful and strengthen family bonds, but it often leads to more psychological stress, especially for older adults who also have their own health concerns. Research shows that regular physical activity can help older adults build resilience and improve their mental well-being. Still, we know little about the health of older caregivers who stay very active. This study examines the health effects of caregiving among members of the National Senior Games Association (NSGA), a group of highly active …

Socialization Interventions For Older Adults In Assisted Living Facilities: A Systematic Review, Anoop S. Muvva

Honors Undergraduate Theses

Older adults, defined as individuals over the age of 65, are a growing population in the United States, with projections estimating this group will reach approximately 80 million persons by 2050. Over 90% of older adults are diagnosed with a chronic condition, which can make it difficult to carry out the activities of daily living. As a result, some older adults reside in assisted living facilities, where dedicated staff provide daily support. However, issues in the delivery of care within these settings, including unmet socialization needs and complications among care staff, may contribute to social isolation. Programs designed to address …

How Does The Frequency Of Visits Impact The Quality Of Life For Nursing Home Residents?, Sophie M. Carlton

Honors Undergraduate Theses

This integrative literature review examines the relationship between quantity of visitation and quality of life (QOL) of nursing home residents. The purpose of this review is to examine existing research to determine whether an optimal “dosage” of visitation exists that meaningfully enhances QOL for this vulnerable population. Establishing an evidence based- guideline may help reduce uncertainty for families and promote more consistent improvements in resident well-being. Nursing home residents are the focus of this work because their limited ability to leave the facility makes visitation one of their primary sources of non-occupational social interaction. The COVID19 pandemic further heightened the …

Title: The Impact Of Intergenerational Program Participation On First-Year Physical Therapy Students’ Beliefs, Attitudes, And Anxiety About Aging And Older Adults: A Mixed Methods Study, Catherine Staloch

Dissertations and Theses

As the aging adult population continues to grow, the utilization and need for medical services for this population are increasing. These trends have raised concerns about the impact of ageist beliefs among health care providers on the health and well-being of older adults. Physical therapists are health care providers who care for aging adults across health care settings. Given the large percentage of physical therapists who care for older adults and the known negative health implications of ageist beliefs among providers, it is imperative that educators in physical therapy programs use learning activities that positively influence students’ beliefs, attitudes, and …

Pregnancy And Breastfeeding Are Associated With Less Later-Life Cognitive Decline In A Longitudinal, Prospective Cohort, Molly M Fox, Jennifer E Bramen, Dayoon Kwon, Mark A Espeland, Yijia Sun, Li Zhang, Aladdin H Shadyab, Ramon Casanova, Joann E Manson, Marcus Y Chang, Verna R Porter, Leslie V Farland, Qian Xiao, Robert A Wild, Prabha Siddarth, Carolyn J Crandall

Faculty, Staff and Student Publications

Introduction: The brains of female mammals evolved to undergo structural and functional changes during pregnancy and lactation, equipping them for motherhood. However, long-term cognitive health implications of these adaptations in women are poorly understood.

Methods: In the Women's Health Initiative (WHI) Memory Study (WHIMS; n = 7427) and WHI Study of Cognitive Aging (WHISCA; n = 2304), postmenopausal women completed reproductive history interviews, annual global cognitive assessment from mean age 70 for up to 13 years, and multi-domain cognitive testing for up to 8 years.

Results: Each additional month pregnant was associated with higher scores of global cognition. Each additional …

24-H Circadian Rest-Activity Rhythms And Physical Frailty In Older Adults: A Biopsychosocial Perspective On Sex Differences And Social Capital, Jisu Kim

Theses and Dissertations

Physical frailty is a prevalent geriatric syndrome characterized by age-related decline across multiple physiological systems. Physical frailty is associated with an elevated risk of adverse health outcomes, including chronic disease progression and all-cause mortality, representing a significant and growing public health concern. Disrupted circadian rest-activity rhythms (RARs) are increasingly recognized as clinically meaningful markers of physical frailty in older adults. However, the extent to which biological sex and social determinants of health (SDoH), particularly social capital, contribute to or modify the associations between RARs and physical frailty remains underexplored.

Therefore, this dissertation summarizes the existing literature on age-related changes in …

Sketching Ot Theory: The Meaning Of Visual Notetaking To Learning Occupational Therapy Theory For Ot Students, Julia Henderson, Delainey Ebel, Ilona Jones, Katie Lee Bunting

Journal of Occupational Therapy Education

Visual notetaking is a creative learning strategy used in health professions education. This study defines it as any form of notes, recorded using physical or electronic means, that are not solely text-based, but incorporate some degree of color, symbolism, shapes, diagrams, and/or other visual imagery to represent concepts. While no previous studies have investigated visual notetaking in the context of occupational therapy education, occupational therapy’s prevalent use of visual representations to convey complex, relational, and holistic theoretical concepts suggests that visual notetaking may have potential as an inherently aligned and effective pedagogical approach for teaching occupational therapy theory. Our study …

Differing Circulating Microrna Profiles Of Long-Lived Polish Populations, Fabrizzio Lijeron-Herrera

Honors Undergraduate Theses

Exceptional longevity, defined as a lower biological age relative to chronological age and maintenance of functional capacity or a slowing of functional decline, is a phenotype most readily observed in centenarians and nonagenarians. These individuals exhibit a phenomenon known as compressed morbidity, spending substantially less time in poor health compared to younger elderly populations, thus representing a unique human model of delayed aging. Circulating microRNAs (miRNAs), potent post-transcriptional regulators of molecular pathways, have emerged as important modulators of aging-related pathways; however, no study has comprehensively profiled miRNAs from serum in long-lived individuals from Central Europe. In particular, Polish populations present …

Multimodal Machine Learning For Alzheimer's Disease Classification Using Adni Biomarker Fusion, Hesameddin Mostaghimi, Hamid R. Okhravi, Bahar Niknejad, Daniel A. Cohen, Michel A. Audette, Alzheimer's Disease Neuroimaging Initiative

Electrical & Computer Engineering Faculty Publications

Despite ongoing advances, accurate diagnosis of Alzheimer’s disease (AD) remains challenging due to its multifactorial nature, comorbidities, and clinical heterogeneity. Accordingly, approaches that combine multimodal data may improve AD classification by integrating complementary information. To investigate this, we evaluated classification performance using a preprocessed ADNI-3 dataset comprising a shared set of clinical/cognitive features along with four imaging modality-based cohorts: trimodal (MRI + amyloid PET + tau PET), MRI + amyloid PET, MRI + tau PET, and MRI-only. We trained a range of supervised machine learning (ML) and deep learning (DL) classifiers using stratified five-fold cross-validation and evaluated performance using accuracy, …

Clinical Challenges Associated With Enhancing Hypertension Among The Underserved African American Population, Ashley Richardson

Doctor of Nursing Practice (DNP) Scholarly Projects

Background 

African Americans face a significantly higher prevalence of hypertension, tend to develop complications at younger ages, and have disproportionately higher mortality rates. Key social determinants of health (SDoH)—including food deserts, unequal access to healthcare, and geographic disparities in healthcare resources—contribute to these ongoing inequities. Addressing both systemic and individual barriers is crucial for effective hypertension management.

Objective

This study aims to assess the effectiveness of a culturally relevant, community-based intervention designed to reduce both systolic and diastolic blood pressure among Black adults with uncontrolled hypertension.

Methods 

Quality improvement (QI) initiatives typically employ multicomponent, equity-focused models. The primary components of …

Fostering Connection And Shame Resilience Through Self-Compassion: An Innovative Elective For Health Professions Learners, Gioconda Mojica, Peggy Hsieh, Andrew J Revell, Rex Marco

Faculty, Staff and Student Publications

Background: Shame is an emotional experience in health professions education, often contributing to burnout, isolation, and threats to professional identity. Self-compassion has been identified as a protective factor against shame. This study describes the development and evaluation of an elective designed to foster shame resilience and cultivate self-compassion among health professions students.

Methods: A 6-h elective, Fostering Connection and Shame Resilience Through Self-Compassion, was offered over 3 monthly 2-h sessions. Each session included a shared meal, abbreviated large-group conceptual learning, reflective writing, guided self-compassion practices, and small-group discussions. Participants completed the Self-Compassion Scale-Short Form (SCS-SF) at the beginning and …

Barriers And Facilitators To Recruiting Older Adult Care Homeresidents Into Clinical Trials Of Medicines And Vaccines: A Scoping Review, Selvarani Subbarayan, Imogen A. Smith-Dodd, Gabriel Nicolson, Jennifer K. Burton, Janet T. Scott, Seshadri S. Vasan, Susan D. Shenkin, Roy L. Soiza, The Watch Consortium

Research outputs 2022 to 2026

Introduction: Excluding Care Home (CH) residents from clinical trials of medicines and vaccines has led to an evidence gap. Findings from younger adults may not be generalisable to CH residents with frailty and dementia. Therefore, it is essential to evaluate pharmacological treatments directly in CH residents to assess their safety and efficacy.

Methods: As part of the Widening Access to Trials in Care Homes project, we conducted a scoping review using Joanna Briggs Institute methodology to identify barriers and facilitators to recruiting CH residents into clinical trials of medicinal products. We searched EMBASE, MEDLINE, PsycINFO, CINAHL, and the Cochrane Library …

Modifiable Risk Factors And Hearing Loss: The National Health And Nutrition Examination Survey 1999–2020, Yulu Zheng, Tingting Li, Zhiyuan Wu, Yahong Zhu, Zheng Guo, Xingang Li

Research outputs 2022 to 2026

Objective: To explore the associations between major modifiable risk factors and hearing loss.

Methods: This serial cross-sectional study was conducted within the National Health and Nutrition Examination Survey 1999–2020 in the United States. Associations were assessed using modified Poisson regression and within-sample population attributable fraction (PAF).

Results: Eight thousand seven hundred and seventy adults aged 40–85 years were included in the analyses, the mean (SD) age was 58.0 (11.7) years, with 4002 men (45.6%). Hearing loss was associated with low educational attainment with prevalence ratio 1.23, 95% confidence interval (1.15, 1.31); low income 1.11 (1.04, 1.19); diabetes 1.10 (1.03, 1.18); …

Feasibility And Preliminary Efficacy Of Integrative Neuromuscular Training For Childhood Cancer Survivors: A Pilot Study, Anna Maria Markarian, U. Newton, Dennis Taaffe, Nicholas G. Gottardo, Santosh Valvi, Carolyn J. Peddle-Mcintyre, Jodie Cochrane Wilkie, Daniel A. Galvão

Research outputs 2022 to 2026

Background: Survivors of childhood acute lymphoblastic leukemia (ALL) often exhibit early deficits in muscle and movement competence, which can compromise long-term health. Integrative neuromuscular training (INT), a multifaceted approach combining fundamental movement activities with strength exercises, may help address these deficits during critical developmental periods. Methods: Eight children treated for ALL (aged 6–12 years) completed a supervised INT intervention (2 sessions/week for 8 weeks). Primary outcomes were feasibility (recruitment, retention, adherence, compliance, and tolerance) and program acceptability. Secondary outcomes included muscle function (isometric midthigh pull [IMTP], countermovement jump, and handgrip strength), dual-energy x-ray absorptiometry (DXA)-derived body composition, peripheral quantitative computed …

Non-Pharmacological Sleep Interventions For Dementia Caregivers: A Systematic Review Of Randomized Controlled Trials, Aisling Smyth, Lambert, Mark Jenkins, Adugnaw Zeleke Alem, Misganaw Gebrie Worku, Sujatha Shanmugasundaram

Research outputs 2022 to 2026

Background: Caregivers of people living with dementia frequently report poor sleep. This systematic review describes evidence from randomised controlled trials of non-pharmacological sleep interventions for dementia carers. Methods: A systematic search of major databases was undertaken. Risk of bias was assessed using the Cochrane ROB 2.0 tool. Narrative synthesis followed Synthesis Without Meta-analysis (SWiM) guidelines due to substantial heterogeneity. Findings: Eighteen articles were included. Risk of Bias analyses revealed most studies had high overall risk of bias, primarily from selection of reported result bias. Interventions comprised of five categories: sleep-promoting, carer well-being, exercise, technology-based and complementary therapy. High variability between …

What Is The Evolving Role Of Nurses In Telehealth As Future Healthcare Professionals?, Emma G. Lowry

Honors College Theses

Telehealth has evolved into an essential component of healthcare delivery in today's world, something that occurred alongside the COVID-19 pandemic. As healthcare professionals, nurses must be adequately prepared and equipped to use the tools for telehealth. This paper examines the evolving role of nurses in telehealth by assessing undergraduate nursing students’ and practicing nurses’ knowledge, attitudes, and perceived competencies. Data will be collected through a Qualtrics survey utilizing the Awareness, Knowledge, Attitude, and Skills (AKAS) Scale for Telemedicine, supplemented by interviews with telehealth practitioners to provide qualitative context. It is expected that variations in proficiency and attitudes, from previous biased …

Compassionate Communities, Māori Ageing And End-Of-Life: A Systematic Review, Melissa Carey, Kathleen Mason, Levi Fox, Tess Moeke-Maxwell, Merryn Gott

Research outputs 2022 to 2026

Background: Māori people in Aotearoa New Zealand and Australia experience significant healthcare inequity as they age and towards the end of their lives. Compassionate community approaches to ageing and end-of-life care are increasing in popularity throughout the world. However, this approach has arisen from Eurocentric knowledge systems and not from First Nations people and their communities. Objectives: This research aimed to gain insight into what the Compassionate Communities approach means for First Nations people and identify implications for Māori in Aotearoa New Zealand and Australia. A systematic literature review explored the intersection of Compassionate Communities and First Nations peoples’ perspectives …

Intravenous Infusion Of Nicotinamide Adenine Dinucleotide (Nad+) Versus Nicotinamide Riboside (Nr): A Retrospective Tolerability Pilot Study In A Real-World Setting, Kirsten Reyna, Greer Heinzen, Nikita Patel, Marie Ritter, Alexandra Siojo, Henry Legere, Rachele Pojednic

Research outputs 2022 to 2026

Background: Nicotinamide adenine dinucleotide (NAD⁺) is a cofactor for NAD⁺-dependent enzymes that regulate DNA repair, cellular metabolism, and immune function. Supplementation with NAD⁺ and its precursors is commonly used to prevent age-related disease and extend healthspan. Commercial clinical and wellness settings increasingly provide intravenous (IV) NAD⁺ and nicotinamide riboside (NR) despite limited evaluation of safety and effectiveness. These considerations are important, as NAD⁺ and its precursors differ in reported side effects, cellular uptake, and metabolism. This study sought to compare commercially administered NAD⁺ IV and NR IV in humans by evaluating infusion …

When Does Alzheimer's Disease Start? Plasma Aβ42/40 Assays Show Steep Changes At Aβ-Pet Centiloid 15, Mean Age Of 66 Years, Rodrigo Cánovas, Timothy Cox, Vincent Doré, Pierrick Bourgeat, Jurgen Fripp, Azadeh Feizpour, Rosita Shishegar, Christopher J. Fowler, Simon M. Laws, Tenielle Porter, Stephanie Rainey-Smith, Leslie M. Shaw, Randall J. Bateman, Yan Li, Ovod Vitaliy, Michael W. Weiner, John C. Morris, Tammie L.S. Benzinger, Suzanne E. Schindler, Akinori Nakamura, Takeshi Iwatsubo, Takeshi Ikeuchi, Takashi Kato, Paul Maruff, Hamid R. Sohrabi, Christopher C. Rowe, Ralph Martins, Colin L. Masters, James Doecke

Research outputs 2022 to 2026

Objective: Sporadic late-onset Alzheimer's disease (AD) is characterized by a long pre-clinical phase where amyloid-beta (Aβ) and tau begin to accumulate in the brain. The primary objective was to determine the age at which AD starts by finding the average population age when both positron emission tomography (PET) Aβ (Aβ-PET) and plasma Aβ42/40 become abnormal. Methods: Two high performance immunoprecipitation-mass spectrometry (IP-MS) assays (WashU/C2N and Shimadzu) were tested on samples from 1,450 participants who were diagnosed as cognitively unimpaired (CU), mild cognitive impairment (MCI), or AD-dementia across 4 international cohorts. Natural history modeling and trajectory analyses of the combined Aβ-PET …

Promoting The Concept Healthy Ageing For Use In Gerontological Health And Social Care Policy And Practice, Claire Donnellan

Research outputs 2022 to 2026

Aims: The concept of healthy or successful ageing dates back to the 1960s, where its goal is more realistic in today's ageing society as a result of effective interventions to control and reduce disability and health risks. The aim of this paper is to outline the importance of defining ageing, the semantics and indicators used, and to identify common challenges for health professionals' understanding and application of a healthy ageing approach in their everyday clinical practice. Design and Methods: This discursive paper demonstrates how realistic ageing indicators are for highlighting the variation and impact of challenges associated with ageing. It …

Patients’ And Health Professionals’ Perspectives On Transforming The Burden Of Haemodialysis (Hd) Treatment To An Opportunity: An In-Depth Qualitative Investigation, Haseeba Shouket, Eyal Gringart, Deirdre Drake, Ulrich Steinwandel

Research outputs 2022 to 2026

Most patients with End Stage Kidney Failure (ESKF) in Pakistan must undergo maintenance haemodialysis (HD) to survive. Session duration and the often lifelong nature of this treatment, along with other factors associated with HD, make it difficult to tolerate. This study took a positive psychological perspective and considered that HD sessions’ duration, which has been a major challenge for HD patients, can be turned to an opportunity for patients’ meaningful engagement. Such meaningful engagement can positively transform Pakistani patients’ experience of HD and extend into their lives outside HD. Twenty-four HD patients and six healthcare professionals were interviewed to explore …

Flourishing In Hong Kong: An Analysis Of Wellbeing-Related Outcomes In The Global Flourishing Study, Lanxi Huang, Xu, Maggie Yue Zhao, Hanchao Hou, Aaron Jarden, Tim Lomas, Brendan Case, R. Noah Padgett, Ying Chen, Richard G. Cowden, Byron R. Johnson, Tyler J. Vanderweele

Research outputs 2022 to 2026

Using population-based data from Hong Kong (N = 3,012) drawn from Wave 1 of the Global Flourishing Study, this study examines the distribution of multidimensional flourishing and explores sociodemographic variation across psychological, social, physical, and economic domains. Overall, respondents reported relatively strong happiness and life satisfaction and financial wellbeing, alongside less favourable social connectedness. Patterns of flourishing varied across age, gender, education, employment, and religious affiliation, highlighting meaningful heterogeneity within the population. Early older adults tended to show more favourable wellbeing profiles, whereas younger adults and nonreligious individuals displayed comparatively lower scores across several domains. Educational attainment and employment status …

Barriers To Mental Healthcare In Rural Agricultural Communities, Monica Salonga

Research Honors

Mental health diagnoses have become increasingly concerning in the United States (US). In 2024, 60 million adults in the United States experienced a mental illness, and over 14 million adults stated they had suicidal thoughts (Reinert et al., 2025). The Center for Disease Control (CDC) reports around 4,000 suicide-related deaths in the United States every year (CDC, 2025). One population that suffers from disproportionate rates of suicide is farmers and farm families. Farmers are ranked #4 in the United States regarding suicide rates (Miller & Rudolphi, 2022). Between 2003 and 2018, there were 1,935 suicide-related deaths committed by farmers (Miller …

The Experience Of Homelessness Among Older Adults In Bhutan - A Narrative Inquiry Study, Phuntsho Om

Theses: Doctorates and Masters

A shift in the demographics of homelessness started to occur in the 1900s, with a significant increase in the number of middle-aged or elderly men and women being recognised as a part of the homeless population. The rising urgent global concern of homelessness of older adults necessitates a deeper understanding of the lived experience and holistic well-being of these marginalised adults. This thesis aimed to explore the phenomenon of homelessness of older adults in Bhutan, which is an often neglected topic in both national and international gerontological research.

Employing narrative inquiry within the constructivist approach as articulated by Pino Gravidia …

Creating Community Through Walking The Talk For Dementia, Kate Irving, Fernando Aguzzoli Peres, Walter D. Dawson, Jonathan Adrián Zegarra-Valdivia, Lingani Mbakile-Mahlanza, Iracema Leroi, Sherril B. Gelmon

Institute on Aging Publications

Objectives

Creating community is not only therapeutic—it has been described as essential. This study explores a process of community-building among people with lived and professional experience in the dementia field, during Walking the Talk for Dementia (WTD), a week-long, immersive event on the Camino de Santiago in Spain. Absence of community can lead to fragmented support for both people living with dementia and their care partners and for those working in the field. Achieving a sense of community, however, can be complex.

Methods

A qualitative evaluation was conducted with 79 participants from 27 countries, incorporating pre-, during and post-event reflections. …

Senolytic-Resistant Senescent Cells Have A Distinct Sasp Profile And Functional Impact: The Path To Developing Senosensitizers, Utkarsh Tripathi, Masayoshi Suda, Vagisha Kulshreshtha, Bryan T Piatkowski, Allyson K Palmer, Nino Giorgadze, Christina Inman, Nathan Gasek, Ming Xu, Kurt O Johnson, Tamar Pirtskhalava, Selim Chaib, Larissa P G Langhi Prata, Yi Zhu, Renuka Kandhaya-Pillai, Stefan G Tullius, Saranya P Wyles, Rambabu Majji, Hari Krishna Yalamanchili, David B Allison, Tamar Tchkonia, James L Kirkland

Faculty, Staff and Students Publications

The senescent cell (SC) fate is linked to aging, multiple disorders and diseases, and physical dysfunction. Senolytics, agents that selectively eliminate 30%-70% of SCs, act by transiently disabling the senescent cell antiapoptotic pathways (SCAPs), which defend those SCs that are proapoptotic and pro-inflammatory from their own senescence-associated secretory phenotype (SASP). Consistent with this, a JAK/STAT inhibitor, Ruxolitinib, which attenuates the pro-inflammatory SASP of senescent human preadipocytes, caused them to become "senolytic-resistant". Administering senolytics to obese mice selectively decreased the abundance of the subset of SCs that is pro-inflammatory. In cell cultures, the 30%-70% of human senescent preadipocytes or human umbilical …

Genome-Wide Gene-Sleep Interaction Study Identifies Novel Lipid Loci In 732,564 Participants, Raymond Noordam, Wenyi Wang, Pavithra Nagarajan, Heming Wang, Michael R Brown, Amy R Bentley, Qin Hui, Aldi T Kraja, John L Morrison, Jeffrey R O'Connel, Songmi Lee, Karen Schwander, Traci M Bartz, Lisa De Las Fuentes, Mary F Feitosa, Xiuqing Guo, Xu Hanfei, Sarah E Harris, Zhijie Huang, Mart Kals, Christophe Lefevre, Massimo Mangino, Yuri Milaneschi, Peter J Van Der Most, Natasha L Pacheco, Nicholette D Palmer, Varun Rao, Rainer Rauramaa, Quan Sun, Yasuharu Tabara, Dina Vojinovic, Yujie Wang, Stefan Weiss, Qian Yang, Wei Zhao, Wanying Zhu, Md Abu Yusuf Ansari, Hugues Aschard, Pramod Anugu, Themistocles L Assimes, John Attia, Laura D Baker, Christie Ballantyne, Lydia Bazzano, Eric Boerwinkle, Brain Cade, Hung-Hsin Chen, Wei Chen, Yii-Der Ida Chen, Zekai Chen, Kelly Cho, Ileana De Anda-Duran, Latchezar Dimitrov, Anh Do, Todd Edwards, Tariq Faquih, Aroon Hingorani, Susan P Fisher-Hoch, J Michael Gaziano, Sina A Gharib, Ayush Giri, Mohsen Ghanbari, Hans Jörgen Grabe, Mariaelisa Graff, C Charles Gu, Jiang He, Sami Heikkinen, James Hixson, Yuk-Lam Ho, Michelle M Hood, Serena C Houghton, Carrie A Karvonen-Gutierrez, Takahisa Kawaguchi, Tuomas O Kilpeläinen, Pirjo Komulainen, Henry J Lin, Gregorio V Linchangco, Annemarie I Luik, Jintao Ma, James B Meigs, Joseph B Mccormick, Cristina Menni, Ilja M Nolte, Jill M Norris, Lauren E Petty, Hannah G Polikowsky, Laura M Raffield, Stephen S Rich, Renata L Riha, Thomas C Russ, Edward A Ruiz-Narvaez, Colleen M Sitlani, Jennifer A Smith, Harold Snieder, Tamar Sofer, Botong Shen, Jingxian Tang, Kent D Taylor, Maris Teder-Laving, Rima Triatin, Michael Y Tsai, Henry Völzke, Kenneth E Westerman, Rui Xia, Jie Yao, Kristin L Young, Ruiyuan Zhang, Alan B Zonderman, Xiaofeng Zhu, Jennifer E Below, Simon R Cox, Michelle Evans, Myriam Fornage, Ervin R Fox, Nora Franceschini, Sioban D Harlow, Elizabeth Holliday, M Arfan Ikram, Tanika Kelly, Timo A Lakka, Deborah A Lawlor, Changwei Li, Ching-Ti Liu, Reedik Mägi, Alisa K Manning, Fumihiko Matsuda, Alanna C Morrison, Matthias Nauck, Kari E North, Brenda Wjh Penninx, Michael A Province, Bruce M Psaty, Jerome I Rotter, Tim D Spector, Lynne E Wagenknecht, Ko Willems Van Dijk, Lifelines Cohort Study, Million Veteran Program, Cashell E Jaquish, Peter Wf Wilson, Patricia A Peyser, Patricia B Munroe, Paul S De Vries, W James Gauderman, Yan V Sun, Han Chen, Clint L Miller, Thomas W Winkler, Dabeeru C Rao, Susan Redline, Diana Van Heemst

Faculty, Staff and Student Publications

Background and aims: Deviations from the population mean in sleep duration have been associated with increased risk for developing dyslipidemia and atherosclerotic cardiovascular disease, but the mechanism of effect is poorly characterized. We performed large-scale genome-wide gene-sleep interaction analyses of lipid levels to identify genetic variants underpinning the biomolecular pathways of sleep-associated lipid disturbances and to suggest possible druggable targets.

Methods: We collected data from 55 cohorts with a combined sample size of 732,564 participants (87 % European ancestry) with data on lipid traits (high-density lipoprotein [HDL-c] and low-density lipoprotein [LDL-c] cholesterol and triglycerides [TG]). Short (STST) and long (LTST) …

Lost Before Forgetting: Objective Driving Metrics Track Navigation Deficits Tied To Preclinical Alzheimer's Disease, Yiqi Zhu, Ramkrishna K Singh, Semere Bekena, David C Brown, Chen Chen, Matthew Blake, Jean-François Trani, Ganesh M Babulal

2020-Current year OA Pubs

BACKGROUND AND OBJECTIVES: Navigation is a complex, multisensory process in which subtle changes may emerge before the onset of symptomatic Alzheimer's disease (AD). This study investigated whether navigation abilities were associated with amyloid and tau pathology in cognitively normal older adults.

RESEARCH DESIGN AND METHODS: Among 285 cognitively unimpaired older adults, navigation and objective driving behaviors were assessed using the self-reported Santa Barbara Sense of Direction Scale (SBSOD) and a datalogger, respectively. Amyloid and tau burden were quantified using PET-MRI 2 years post-initial driving data collection. Linear mixed-effects models were used to evaluate the associations between biomarker status and longitudinal …

Biological Aging Acceleration In Major Depressive Disorder: A Multi-Omics Analysis, Breno Satler Diniz, Shangshu Zhao, Gabin Drouard, Eero Vuoksimaa, Miina Ollikainen, Eric J Lenze, Ming Xu, Richard H Fortinsky, George A Kuchel, Jaakko Kaprio, Chia-Ling Kuo

2020-Current year OA Pubs

Major depressive disorder (MDD) is linked to a higher risk of premature aging, but the mechanisms underlying this association remain unclear. Using data from two population cohorts (UK Biobank and Finnish Twin Cohort), we evaluate the relationship between systemic and organ-specific proteomic and epigenetic aging acceleration and MDD. A lifetime history of MDD was associated with accelerated proteomic aging at both systemic and organ-specific levels-including the brain-in both cohorts, with stronger associations than those observed with systemic epigenetic aging. Systemic and brain-specific proteomic aging acceleration were linked to higher risks of incident MDD and a greater risk of Alzheimer's disease, …

The Association Between Major Depressive Disorder, Plasma Biomarkers Of Alzheimer's Disease, And Mild Behavioral Impairment Among Older Adults, Yiqi Zhu, Jean-Francois Trani, Ramkrishna K Singh, Semere Bekena, Jonathan Williams, Eric J Lenze, Ganesh M Babulal

2020-Current year OA Pubs

INTRODUCTION: Plasma biomarkers and mild behavioral impairment (MBI) are associated with dementia risk, but their relationships with major depressive disorder (MDD) are understudied. This study aimed to examine associations between plasma biomarkers of Alzheimer's disease (AD) and MBI among older adults with and without MDD.

METHODS: Older adults aged ≥65 were recruited from longitudinal studies of depression and AD (

RESULTS: Older adults with MDD were more likely to endorse MBI. After adjustment, Aβ42/Aβ40 and p-tau217/np-tau217 positivity were associated with MBI among those with MDD but not among those without.

DISCUSSION: Neuropsychatric symptoms (NPS) and biomarkers are AD risk factors. …