Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

Washington University School of Medicine

Discipline
Keyword
Publication Year
Publication
Publication Type

Articles 3181 - 3210 of 11062

Full-Text Articles in Entire DC Network

The Extensive And Functionally Uncharacterized Mitochondrial Phosphoproteome, Natalie M. Niemi, David J. Pagliarini Jan 2021

The Extensive And Functionally Uncharacterized Mitochondrial Phosphoproteome, Natalie M. Niemi, David J. Pagliarini

Open Access Publications

No abstract provided.


Oasis/Creb3l1 Is A Factor That Responds To Nuclear Envelope Stress, Yasunao Kamikawa, Atsushi Saito, Koji Matsuhisa, Masayuki Kaneko, Rie Asada, Yasunori Horikoshi, Satoshi Tashiro, Kazunori Imaizumi Jan 2021

Oasis/Creb3l1 Is A Factor That Responds To Nuclear Envelope Stress, Yasunao Kamikawa, Atsushi Saito, Koji Matsuhisa, Masayuki Kaneko, Rie Asada, Yasunori Horikoshi, Satoshi Tashiro, Kazunori Imaizumi

Open Access Publications

No abstract provided.


Genetic Association Study Of Childhood Aggression Across Raters, Instruments, And Age, Hill F. Ip, Andrew C. Heath, Pamela Madden, Et Al. Jan 2021

Genetic Association Study Of Childhood Aggression Across Raters, Instruments, And Age, Hill F. Ip, Andrew C. Heath, Pamela Madden, Et Al.

Open Access Publications

No abstract provided.


Report From The 6th International Meeting On Bone Marrow Adiposity (Bma2020), Erica L Scheller, Meghan E Mcgee-Lawrence, Beata Lecka-Czernik Jan 2021

Report From The 6th International Meeting On Bone Marrow Adiposity (Bma2020), Erica L Scheller, Meghan E Mcgee-Lawrence, Beata Lecka-Czernik

Open Access Publications

The 6


Strategies And Tools For Studying Microglial-Mediated Synapse Elimination And Refinement, Raffaella Morini, Matteo Bizzotto, Fabio Perrucci, Fabia Filipello, Michela Matteoli Jan 2021

Strategies And Tools For Studying Microglial-Mediated Synapse Elimination And Refinement, Raffaella Morini, Matteo Bizzotto, Fabio Perrucci, Fabia Filipello, Michela Matteoli

Open Access Publications

The role of microglia in controlling synapse homeostasis is becoming increasingly recognized by the scientific community. In particular, the microglia-mediated elimination of supernumerary synapses during development lays the basis for the correct formation of neuronal circuits in adulthood, while the possible reactivation of this process in pathological conditions, such as schizophrenia or Alzheimer's Disease, provides a promising target for future therapeutic strategies. The methodological approaches to investigate microglial synaptic engulfment include different


Ablative Five-Fraction Stereotactic Body Radiation Therapy For Inoperable Pancreatic Cancer Using Online Mr-Guided Adaptation, Comron Hassanzadeh, Soumon Rudra, Ani Bommireddy, William G Hawkins, Andrea Wang-Gillam, Ryan C Fields, Bin Cai, Justin Park, Olga Green, Michael Roach, Lauren Henke, Hyun Kim Jan 2021

Ablative Five-Fraction Stereotactic Body Radiation Therapy For Inoperable Pancreatic Cancer Using Online Mr-Guided Adaptation, Comron Hassanzadeh, Soumon Rudra, Ani Bommireddy, William G Hawkins, Andrea Wang-Gillam, Ryan C Fields, Bin Cai, Justin Park, Olga Green, Michael Roach, Lauren Henke, Hyun Kim

Open Access Publications

Purpose: Patients with inoperable pancreatic adenocarcinoma have limited options, with traditional chemoradiation providing modest clinical benefit and an otherwise poor prognosis. Stereotactic body radiation therapy for pancreatic cancer is limited by proximity to organs-at-risk (OAR). However, stereotactic magnetic resonance-guided adaptive radiation therapy (SMART) has shown promise in delivering ablative doses safely. We sought to demonstrate the benefits of SMART using a 5-fraction approach with daily on-table adaptation.

Methods and Materials: Patients with locally advanced, nonmetastatic pancreatic adenocarcinoma were treated with 50 Gy in 5 fractions (biologically effective dose

Results: Forty-four patients were treated with SMART at our institution from 2014 …


Whole-Exome Sequencing And Hipsc Cardiomyocyte Models Identify Myrip, Trappc11, And Slc27a6 Of Potential Importance To Left Ventricular Hypertrophy In An African Ancestry Population, Marguerite R Irvin, Lisa De Las Fuentes, C Charles Gu, Karen Schwander, Dabeeru C Rao, Et Al Jan 2021

Whole-Exome Sequencing And Hipsc Cardiomyocyte Models Identify Myrip, Trappc11, And Slc27a6 Of Potential Importance To Left Ventricular Hypertrophy In An African Ancestry Population, Marguerite R Irvin, Lisa De Las Fuentes, C Charles Gu, Karen Schwander, Dabeeru C Rao, Et Al

Open Access Publications

No abstract provided.


Peripheral Sensory Stimulation Elicits Global Slow Waves By Recruiting Somatosensory Cortex Bilaterally, Zachary P. Rosenthal, Ryan V. Raut, Ryan M. Bowen, Abraham Z. Snyder, Joseph P. Culver, Marcus E. Raichle, Jin-Moo Lee Jan 2021

Peripheral Sensory Stimulation Elicits Global Slow Waves By Recruiting Somatosensory Cortex Bilaterally, Zachary P. Rosenthal, Ryan V. Raut, Ryan M. Bowen, Abraham Z. Snyder, Joseph P. Culver, Marcus E. Raichle, Jin-Moo Lee

Open Access Publications

No abstract provided.


A Two-Hit Model Of Alcoholic Liver Disease That Exhibits Rapid, Severe Fibrosis, Monideepa Sengupta, Suomia Abuirqeba, Amina Kameric, Aurore Cecile-Valfort, Arindam Chatterjee, Kristine Griffett, Thomas P. Burris, Colin A. Flaveny Jan 2021

A Two-Hit Model Of Alcoholic Liver Disease That Exhibits Rapid, Severe Fibrosis, Monideepa Sengupta, Suomia Abuirqeba, Amina Kameric, Aurore Cecile-Valfort, Arindam Chatterjee, Kristine Griffett, Thomas P. Burris, Colin A. Flaveny

Open Access Publications

Alcoholic liver disease (ALD) is responsible for an average of 50.4% and 44.2%of liver disease deaths among males and females respectively. Driven by alcohol misuse, ALD is often reversible by cessation of consumption. However, abstinence programs can have limited success at curtailing abuse, and the loss of life. ALD, therefore, remains a significant clinical challenge. There is a need for effective treatments that prevent or reverse alcohol-induced liver damage to complement or supplant behavioral interventions. Metabolic syndrome, which is disproportionally prevalent in ALD patients, accelerates the progression of ALD and increases liver disease mortality. Current rodent models of ALD unfortunately …


Mr-Guided Radiotherapy For Liver Malignancies, Luca Boldrini, Stefanie Corradini, Cihan Gani, Lauren Henke, Ali Hosni, Angela Romano, Laura Dawson Jan 2021

Mr-Guided Radiotherapy For Liver Malignancies, Luca Boldrini, Stefanie Corradini, Cihan Gani, Lauren Henke, Ali Hosni, Angela Romano, Laura Dawson

Open Access Publications

MR guided radiotherapy represents one of the most promising recent technological innovations in the field. The possibility to better visualize therapy volumes, coupled with the innovative online adaptive radiotherapy and motion management approaches, paves the way to more efficient treatment delivery and may be translated in better clinical outcomes both in terms of response and reduced toxicity. The aim of this review is to present the existing evidence about MRgRT applications for liver malignancies, discussing the potential clinical advantages and the current pitfalls of this new technology.


Health Disparities And Treatment Approaches In Portopulmonary Hypertension And Idiopathic Pulmonary Arterial Hypertension: An Analysis Of The Pulmonary Hypertension Association Registry, Hilary M Dubrock, Murali Chakinala, Et Al. Jan 2021

Health Disparities And Treatment Approaches In Portopulmonary Hypertension And Idiopathic Pulmonary Arterial Hypertension: An Analysis Of The Pulmonary Hypertension Association Registry, Hilary M Dubrock, Murali Chakinala, Et Al.

2020-Current year OA Pubs

Compared to idiopathic pulmonary arterial hypertension (IPAH), patients with portopulmonary hypertension (POPH) have worse survival. Health disparities may contribute to these differences but have not been studied. We sought to compare socioeconomic factors in patients with POPH and IPAH and to determine whether socioeconomic status and/or POPH diagnosis were associated with treatment and health-care utilization. We performed a cross-sectional study of adults enrolled in the Pulmonary Hypertension Association Registry. Patients with IPAH (n = 344) and POPH (n = 57) were compared. Compared with IPAH, patients with POPH were less likely to be college graduates (19.6% vs. 34.9%, p = …


Unfriendly Fire: How The Tobacco Industry Is Destroying The Future Of Our Children, Andrew Bush, Thomas Ferkol, Et Al. Jan 2021

Unfriendly Fire: How The Tobacco Industry Is Destroying The Future Of Our Children, Andrew Bush, Thomas Ferkol, Et Al.

2020-Current year OA Pubs

Tobacco has long been known to be one of the greatest causes of morbidity and mortality in the adults, but the effects on the foetus and young children, which are lifelong, have been less well appreciated. Developing from this are electronic nicotine delivery systems or vapes, promulgated as being less harmful than tobacco. Nicotine itself is toxic to the foetus, with permanent effects on lung structure and function. Most vapes contain nicotine, but they also contain many other compounds which are inhaled and for which there are no toxicity studies. They also contain known toxic substances, whose use is banned …


Noise Exposure Potentiates Exocytosis From Cochlear Inner Hair Cells, Luis E Boero, Shelby Payne, Maria Eugenia Gómez-Casati, Mark A Rutherford, Juan D Goutman Jan 2021

Noise Exposure Potentiates Exocytosis From Cochlear Inner Hair Cells, Luis E Boero, Shelby Payne, Maria Eugenia Gómez-Casati, Mark A Rutherford, Juan D Goutman

Open Access Publications

Noise-induced hearing loss has gained relevance as one of the most common forms of hearing impairment. The anatomical correlates of hearing loss, principally cell damage and/or death, are relatively well-understood histologically. However, much less is known about the physiological aspects of damaged, surviving cells. Here we addressed the functional consequences of noise exposure on the capacity of inner hair cells (IHCs) to release synaptic vesicles at synapses with spiral ganglion neurons (SGNs). Mice of either sex at postnatal day (P) 15-16 were exposed to 1-12 kHz noise at 120 dB sound pressure level (SPL), for 1 h. Exocytosis was measured …


Development And Validation Of A Deep Learning Model To Quantify Glomerulosclerosis In Kidney Biopsy Specimens, Jon N. Marsh, Ta-Chiang Liu, Parker C. Wilson, S. Joshua Swamidass, Joseph P. Gaut Jan 2021

Development And Validation Of A Deep Learning Model To Quantify Glomerulosclerosis In Kidney Biopsy Specimens, Jon N. Marsh, Ta-Chiang Liu, Parker C. Wilson, S. Joshua Swamidass, Joseph P. Gaut

Open Access Publications

Importance: A chronic shortage of donor kidneys is compounded by a high discard rate, and this rate is directly associated with biopsy specimen evaluation, which shows poor reproducibility among pathologists. A deep learning algorithm for measuring percent global glomerulosclerosis (an important predictor of outcome) on images of kidney biopsy specimens could enable pathologists to more reproducibly and accurately quantify percent global glomerulosclerosis, potentially saving organs that would have been discarded.

Objective: To compare the performances of pathologists with a deep learning model on quantification of percent global glomerulosclerosis in whole-slide images of donor kidney biopsy specimens, and to determine the …


Sex-Dimorphic Genetic Effects And Novel Loci For Fasting Glucose And Insulin Variability, Vasiliki Lagou, Ping An, Michael A. Province, Et Al. Jan 2021

Sex-Dimorphic Genetic Effects And Novel Loci For Fasting Glucose And Insulin Variability, Vasiliki Lagou, Ping An, Michael A. Province, Et Al.

Open Access Publications

No abstract provided.


Quantitative Evaluation Of Frequency Domain Measurements In High Density Diffuse Optical Tomography, Guy A. Perkins, Adam T. Eggebrecht, Hamid Dehghani Jan 2021

Quantitative Evaluation Of Frequency Domain Measurements In High Density Diffuse Optical Tomography, Guy A. Perkins, Adam T. Eggebrecht, Hamid Dehghani

Open Access Publications

No abstract provided.


Dengue And The Lectin Pathway Of The Complement System, Romchat Kraivong, Nuntaya Punyadee, M Kathryn Liszewski, John P Atkinson, Panisadee Avirutnan Jan 2021

Dengue And The Lectin Pathway Of The Complement System, Romchat Kraivong, Nuntaya Punyadee, M Kathryn Liszewski, John P Atkinson, Panisadee Avirutnan

Open Access Publications

Dengue is a mosquito-borne viral disease causing significant health and economic burdens globally. The dengue virus (DENV) comprises four serotypes (DENV1-4). Usually, the primary infection is asymptomatic or causes mild dengue fever (DF), while secondary infections with a different serotype increase the risk of severe dengue disease (dengue hemorrhagic fever, DHF). Complement system activation induces inflammation and tissue injury, contributing to disease pathogenesis. However, in asymptomatic or primary infections, protective immunity largely results from the complement system's lectin pathway (LP), which is activated through foreign glycan recognition. Differences in N-glycans displayed on the DENV envelope membrane influence the lectin pattern …


Liver-Specific Deletion Of Mttp Versus Tm6sf2 Reveals Distinct Defects In Stepwise Vldl Assembly, Elizabeth P Newberry, Gregory W Strout, James A J Fitzpatrick, Nicholas O Davidson Jan 2021

Liver-Specific Deletion Of Mttp Versus Tm6sf2 Reveals Distinct Defects In Stepwise Vldl Assembly, Elizabeth P Newberry, Gregory W Strout, James A J Fitzpatrick, Nicholas O Davidson

Open Access Publications

No abstract provided.


Programmed Cell Death Recruits Macrophages Into The Developing Mouse Cochlea, Vikrant Borse, Tejbeer Kaur, Ashley Hinton, Kevin Ohlemiller, Mark E Warchol Jan 2021

Programmed Cell Death Recruits Macrophages Into The Developing Mouse Cochlea, Vikrant Borse, Tejbeer Kaur, Ashley Hinton, Kevin Ohlemiller, Mark E Warchol

Open Access Publications

Programmed cell death (PCD) plays a critical role in the development and maturation of the cochlea. Significant remodeling occurs among cells of the greater epithelial ridge (GER) of Kölliker's organ, leading to tissue regression and formation of the inner sulcus. In mice, this event normally occurs between postnatal days 5-15 (P5-15) and is regulated by thyroid hormone (T3). During this developmental time period, the cochlea also contains a large population of macrophages. Macrophages are frequently involved in the phagocytic clearance of dead cells, both during development and after injury, but the role of macrophages in the developing cochlea is unknown. …


Shifting Pathways Of Stimulant Use Among Individuals With Opioid Use Disorder: A Retrospective Analysis Of The Last Thirty Years, Matthew S Ellis, Zachary A Kasper, Stephen Scroggins Jan 2021

Shifting Pathways Of Stimulant Use Among Individuals With Opioid Use Disorder: A Retrospective Analysis Of The Last Thirty Years, Matthew S Ellis, Zachary A Kasper, Stephen Scroggins

Open Access Publications

No abstract provided.


Follow The Metaplasia: Characteristics And Oncogenic Implications Of Metaplasia's Pattern Of Spread Throughout The Stomach, José B Sáenz Jan 2021

Follow The Metaplasia: Characteristics And Oncogenic Implications Of Metaplasia's Pattern Of Spread Throughout The Stomach, José B Sáenz

Open Access Publications

The human stomach functions as both a digestive and innate immune organ. Its main product, acid, rapidly breaks down ingested products and equally serves as a highly effective microbial filter. The gastric epithelium has evolved mechanisms to appropriately handle the myriad of injurious substances, both exogenous and endogenous, to maintain the epithelial barrier and restore homeostasis. The most significant chronic insult that the stomach must face is


Overlapping But Disparate Inflammatory And Immunosuppressive Responses To Sars-Cov-2 And Bacterial Sepsis: An Immunological Time Course Analysis, Tyler J Loftus, Ricardo Ungaro, Marvin Dirain, Philip A Efron, Monty B Mazer, Kenneth E Remy, Richard S Hotchkiss, Luer Zhong, Rhonda Bacher, Petr Starostik, Lyle L Moldawer, Scott C Brakenridge Jan 2021

Overlapping But Disparate Inflammatory And Immunosuppressive Responses To Sars-Cov-2 And Bacterial Sepsis: An Immunological Time Course Analysis, Tyler J Loftus, Ricardo Ungaro, Marvin Dirain, Philip A Efron, Monty B Mazer, Kenneth E Remy, Richard S Hotchkiss, Luer Zhong, Rhonda Bacher, Petr Starostik, Lyle L Moldawer, Scott C Brakenridge

Open Access Publications

Both severe SARS-CoV-2 infections and bacterial sepsis exhibit an immunological dyscrasia and propensity for secondary infections. The nature of the immunological dyscrasias for these differing etiologies and their time course remain unclear. In this study, thirty hospitalized patients with SARS-CoV-2 infection were compared with ten critically ill patients with bacterial sepsis over 21 days, as well as ten healthy control subjects. Blood was sampled between days 1 and 21 after admission for targeted plasma biomarker analysis, cellular phenotyping, and leukocyte functional analysis


Associations Between Education And Dementia In The Caribbean And The United States: An International Comparison, Jing Li, Jorge J Llibre-Guerra, Amal Harrati, Jordan Weiss, Ivonne Z Jiménez-Velázquez, Daisy Acosta, Juan De Jesús Llibre-Rodriguez, Mao-Mei Liu, William H Dow Jan 2021

Associations Between Education And Dementia In The Caribbean And The United States: An International Comparison, Jing Li, Jorge J Llibre-Guerra, Amal Harrati, Jordan Weiss, Ivonne Z Jiménez-Velázquez, Daisy Acosta, Juan De Jesús Llibre-Rodriguez, Mao-Mei Liu, William H Dow

Open Access Publications

Introduction: Despite high dementia prevalence in Hispanic populations globally, especially Caribbean Hispanics, no study has comparatively examined the association between education and dementia among Hispanics living in the Caribbean Islands and older adults in the United States.

Methods: We used data on 6107 respondents aged 65 and older in the baseline wave of the population-based and harmonized 10/66 survey from Cuba, the Dominican Republic, and Puerto Rico, collected between 2003 and 2008, and 11,032 respondents aged 65 and older from the U.S.-based Health and Retirement Study data in 2014, a total of 17,139 individuals. We estimated multivariable logistic regression models …


Harnessing The Potential Of Multiomics Studies For Precision Medicine In Infectious Disease, Rebecca A. Ward, Philip A. Mudd, Rachel M. Presti, Andrej Spec, Et Al Jan 2021

Harnessing The Potential Of Multiomics Studies For Precision Medicine In Infectious Disease, Rebecca A. Ward, Philip A. Mudd, Rachel M. Presti, Andrej Spec, Et Al

Open Access Publications

The field of infectious diseases currently takes a reactive approach and treats infections as they present in patients. Although certain populations are known to be at greater risk of developing infection (eg, immunocompromised), we lack a systems approach to define the true risk of future infection for a patient. Guided by impressive gains in "omics" technologies, future strategies to infectious diseases should take a precision approach to infection through identification of patients at intermediate and high-risk of infection and deploy targeted preventative measures (ie, prophylaxis). The advances of high-throughput immune profiling by multiomics approaches (ie, transcriptomics, epigenomics, metabolomics, proteomics) hold …


Evaluation Of Commercial Rapid Lateral Flow Tests, Alone Or In Combination, For Sars-Cov-2 Antibody Testing, Peter U Fischer, Kerstin Fischer, Kurt C Curtis, Yuefang Huang, Nicole Fetcho, Charles W Goss, Gary J Weil Jan 2021

Evaluation Of Commercial Rapid Lateral Flow Tests, Alone Or In Combination, For Sars-Cov-2 Antibody Testing, Peter U Fischer, Kerstin Fischer, Kurt C Curtis, Yuefang Huang, Nicole Fetcho, Charles W Goss, Gary J Weil

Open Access Publications

Antibody tests can be tools for detecting current or past severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2 [coronavirus disease 2019 (COVID-19)]) infections. Independent test evaluations are needed to document the performance with different sample sets. We evaluated six lateral flow assays (LFAs) and two laboratory-based tests (EUROIMMUN-SARS-CoV-2 ELISA and Abbott-Architect-SARS-CoV-2-IgG). We tested 210 plasma samples from 89 patients diagnosed with acute COVID-19. These samples were collected at different time points after the onset of symptoms. In addition, 80 convalescent plasma samples, and 168 pre-pandemic samples collected from adults in the United States and in Africa were tested. LFA performance varied …


Genome‑Wide Chromatin Accessibility Analyses Provide A Map For Enhancing Optic Nerve Regeneration, Wolfgang Pita-Thomas, Tassia Mangetti Gonçalves, Ajeet Kumar, Guoyan Zhao, Valeria Cavalli Jan 2021

Genome‑Wide Chromatin Accessibility Analyses Provide A Map For Enhancing Optic Nerve Regeneration, Wolfgang Pita-Thomas, Tassia Mangetti Gonçalves, Ajeet Kumar, Guoyan Zhao, Valeria Cavalli

Open Access Publications

No abstract provided.


History Of The Department Of Pathology And Immunology And Its Divisions, Washington University School Of Medicine., Jack H. Ladenson Phd Jan 2021

History Of The Department Of Pathology And Immunology And Its Divisions, Washington University School Of Medicine., Jack H. Ladenson Phd

Washington University School of Medicine Histories

No abstract provided.


Validation Of Diffusion Mri As A Biomarker For Efficacy Using Randomized Phase Iii Trial Of Bevacizumab With Or Without Vb-111 In Recurrent Glioblastoma, Benjamin M Ellingson, Jian L Campian, Et Al. Jan 2021

Validation Of Diffusion Mri As A Biomarker For Efficacy Using Randomized Phase Iii Trial Of Bevacizumab With Or Without Vb-111 In Recurrent Glioblastoma, Benjamin M Ellingson, Jian L Campian, Et Al.

2020-Current year OA Pubs

BACKGROUND: Evidence from single and multicenter phase II trials have suggested diffusion MRI is a predictive imaging biomarker for survival benefit in recurrent glioblastoma (rGBM) treated with anti-VEGF therapy. The current study confirms these findings in a large, randomized phase III clinical trial.

METHODS: Patients with rGBM were enrolled in a phase III randomized (1:1), controlled trial (NCT02511405) to compare the efficacy and safety of bevacizumab (BV) versus BV in combination with ofranergene obadenovec (BV+VB-111), an anti-cancer viral therapy. In 170 patients with diffusion MRI available, pretreatment enhancing tumor volume and ADC histogram analysis were used to phenotype patients as …


Gene Therapy Potential For Genetic Disorders Of Surfactant Dysfunction, Ashley L Cooney, Jennifer A Wambach, Patrick L Sinn, Paul B Mccray Jan 2021

Gene Therapy Potential For Genetic Disorders Of Surfactant Dysfunction, Ashley L Cooney, Jennifer A Wambach, Patrick L Sinn, Paul B Mccray

2020-Current year OA Pubs

Pulmonary surfactant is critically important to prevent atelectasis by lowering the surface tension of the alveolar lining liquid. While respiratory distress syndrome (RDS) is common in premature infants, severe RDS in term and late preterm infants suggests an underlying genetic etiology. Pathogenic variants in the genes encoding key components of pulmonary surfactant including surfactant protein B (SP-B,


Perceived Barriers To Assessing Understanding And Appreciation Of Informed Consent In Clinical Trials: A Mixed-Method Study, Erin D Solomon, Jessica Mozersky, Kari Baldwin, Matthew P Wroblewski, Meredith V Parsons, Melody Goodman, James M Dubois Jan 2021

Perceived Barriers To Assessing Understanding And Appreciation Of Informed Consent In Clinical Trials: A Mixed-Method Study, Erin D Solomon, Jessica Mozersky, Kari Baldwin, Matthew P Wroblewski, Meredith V Parsons, Melody Goodman, James M Dubois

2020-Current year OA Pubs

INTRODUCTION: Participants and research professionals often overestimate how well participants understand and appreciate consent information for clinical trials, and experts often vary in their determinations of participant's capacity to consent to research. Past research has developed and validated instruments designed to assess participant understanding and appreciation, but the frequency with which they are utilized is unknown.

METHODS: We administered a survey to clinical researchers working with older adults or those at risk of cognitive impairment (

RESULTS: We found that using a validated assessment of consent is relatively uncommon, being used by only 44% of researchers who had an opportunity. …