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2023

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Articles 511 - 540 of 817

Full-Text Articles in Internal Medicine

Association Of Glucose-6-Phosphate Dehydrogenase Deficiency With Outcomes In Us Veterans With Covid-19, Sarah H Elsea, Javad Razjouyan, Kyung Min Lee, Julie A Lynch, Sharyl Martini, Lavannya M Pandit Mar 2023

Association Of Glucose-6-Phosphate Dehydrogenase Deficiency With Outcomes In Us Veterans With Covid-19, Sarah H Elsea, Javad Razjouyan, Kyung Min Lee, Julie A Lynch, Sharyl Martini, Lavannya M Pandit

Faculty, Staff and Students Publications

IMPORTANCE: The underlying biological risk factors for severe outcome due to SAR-CoV-2 infection are not well defined.

OBJECTIVE: To determine the association between glucose-6-phosphate dehydrogenase (G6PD) deficiency and severity of COVID-19.

DESIGN, SETTING, AND PARTICIPANTS: This retrospective cohort study included analysis of 24 700 veterans with G6PD enzyme testing prior to January 1, 2020, obtained through the US Veterans Health Administration national databases. These veterans were cross-referenced with the Veterans Administration COVID-19 Shared Data Resource for SARS-CoV-2 testing from February 15, 2020, to January 1, 2021. The final study population consisted of 4811 veterans who tested positive for SARS-CoV-2. Statistical …


Mortality Patterns Associated With Central Sleep Apnea Among Veterans: A Large, Retrospective, Longitudinal Report, Ritwick Agrawal, Amir Sharafkhaneh, Daniel J Gottlieb, Sara Nowakowski, Javad Razjouyan Mar 2023

Mortality Patterns Associated With Central Sleep Apnea Among Veterans: A Large, Retrospective, Longitudinal Report, Ritwick Agrawal, Amir Sharafkhaneh, Daniel J Gottlieb, Sara Nowakowski, Javad Razjouyan

Faculty, Staff and Students Publications

Rationale

Central sleep apnea (CSA) is associated with high mortality. Current knowledge stems from studies with limited sample size (fewer than 100 subjects) and in homogeneous populations such as heart failure (HF).

Objectives

To address this knowledge gap, we compared the mortality pattern and time to death between the CSA and obstructive sleep apnea (OSA) patients in the large Veterans Health Administration patient population using the big data analytic approach.

Methods

This is a retrospective study using national Veterans Health Administration electronic medical records from October 1, 1999, through September 30, 2020. We grouped the patients with underlying sleep disorders …


Electrical Stimulation To Regain Lower Extremity Muscle Perfusion And Endurance In Patients With Post-Acute Sequelae Of Sars Cov-2: A Randomized Controlled Trial, Alejandro Zulbaran-Rojas, Myeounggon Lee, Rasha O Bara, Areli Flores-Camargo, Gil Spitz, M G Finco, Amir Behzad Bagheri, Dipaben Modi, Fidaa Shaib, Bijan Najafi Mar 2023

Electrical Stimulation To Regain Lower Extremity Muscle Perfusion And Endurance In Patients With Post-Acute Sequelae Of Sars Cov-2: A Randomized Controlled Trial, Alejandro Zulbaran-Rojas, Myeounggon Lee, Rasha O Bara, Areli Flores-Camargo, Gil Spitz, M G Finco, Amir Behzad Bagheri, Dipaben Modi, Fidaa Shaib, Bijan Najafi

Faculty, Staff and Students Publications

Muscle deconditioning and impaired vascular function in the lower extremities (LE) are among the long‐term symptoms experienced by COVID‐19 patients with a history of severe illness. These symptoms are part of the post‐acute sequelae of Sars‐CoV‐2 (PASC) and currently lack evidence‐based treatment. To investigate the efficacy of lower extremity electrical stimulation (E‐Stim) in addressing PASC‐related muscle deconditioning, we conducted a double‐blinded randomized controlled trial. Eighteen (n = 18) patients with LE muscle deconditioning were randomly assigned to either the intervention (IG) or the control (CG) group, resulting in 36 LE being assessed. Both groups received daily 1 h E‐Stim …


Racial And Ethnic Disparities In Acute Care Utilization Among Patients With Glomerular Disease, Jill R Krissberg, Michelle M O'Shaughnessy, Abigail R Smith, Margaret E Helmuth, Salem Almaani, Diego H Aviles, Kaye E Brathwaite, Yi Cai, Daniel Cattran, Rasheed Gbadegesin, Dorey A Glenn, Larry A Greenbaum, Sandra Iragorri, Koyal Jain, Myda Khalid, Jason Kidd, Jeffrey Kopp, Richard Lafayette, Jerome C Lane, Francesca Lugani, Jordan G Nestor, Rulan S Parekh, Kimberly Reidy, David T Selewski, Christine B Sethna, C John Sperati, Katherine Tuttle, Katherine Twombley, Tetyana L Vasylyeva, Donald J Weaver, Scott E Wenderfer, Keisha Gibson Mar 2023

Racial And Ethnic Disparities In Acute Care Utilization Among Patients With Glomerular Disease, Jill R Krissberg, Michelle M O'Shaughnessy, Abigail R Smith, Margaret E Helmuth, Salem Almaani, Diego H Aviles, Kaye E Brathwaite, Yi Cai, Daniel Cattran, Rasheed Gbadegesin, Dorey A Glenn, Larry A Greenbaum, Sandra Iragorri, Koyal Jain, Myda Khalid, Jason Kidd, Jeffrey Kopp, Richard Lafayette, Jerome C Lane, Francesca Lugani, Jordan G Nestor, Rulan S Parekh, Kimberly Reidy, David T Selewski, Christine B Sethna, C John Sperati, Katherine Tuttle, Katherine Twombley, Tetyana L Vasylyeva, Donald J Weaver, Scott E Wenderfer, Keisha Gibson

Faculty, Staff and Student Publications

RATIONALE & OBJECTIVE: The effects of race, ethnicity, socioeconomic status (SES), and disease severity on acute care utilization in patients with glomerular disease are unknown.

STUDY DESIGN: Prospective cohort study.

SETTING & PARTICIPANTS: 1,456 adults and 768 children with biopsy-proven glomerular disease enrolled in the Cure Glomerulonephropathy (CureGN) cohort.

EXPOSURE: Race and ethnicity as a participant-reported social factor.

OUTCOME: Acute care utilization defined as hospitalizations or emergency department visits.

ANALYTICAL APPROACH: Multivariable recurrent event proportional rate models were used to estimate associations between race and ethnicity and acute care utilization.

RESULTS: Black or Hispanic participants had lower SES and more …


Content Analysis Of American Network News Coverage Of Prevention Strategies During The Initial Wave Of The Covid-19 Pandemic, Cary M Cain, Nipa Kamdar, Rachael Veldman, Shahereez Budhwani, Patrick O'Mahen Mar 2023

Content Analysis Of American Network News Coverage Of Prevention Strategies During The Initial Wave Of The Covid-19 Pandemic, Cary M Cain, Nipa Kamdar, Rachael Veldman, Shahereez Budhwani, Patrick O'Mahen

Faculty, Staff and Students Publications

BACKGROUND: Broadcast media is a method to communicate health information to the general public and has previously been used in prior public health emergencies. Despite the current ubiquity of social media, traditional news programming retains relatively large audiences, which increased during the COVID-19 pandemic's early days. Viewership of broadcast media networks' evening news skews toward older groups (age 65 and up) which were vulnerable to health complications related to the COVID-19 pandemic.

OBJECTIVES: The current study explored the trends in American broadcast network news media coverage of prevention during the initial wave of the COVID-19 pandemic.

DESIGN: Quantitative content analysis …


Pan-Cancer Molecular Subtypes Of Metastasis Reveal Distinct And Evolving Transcriptional Programs, Yiqun Zhang, Fengju Chen, Chad J Creighton Feb 2023

Pan-Cancer Molecular Subtypes Of Metastasis Reveal Distinct And Evolving Transcriptional Programs, Yiqun Zhang, Fengju Chen, Chad J Creighton

Faculty, Staff and Students Publications

Molecular mechanisms underlying cancer metastasis span diverse tissues of origin. Here, we synthesize and collate the transcriptomes of patient-derived xenografts and patient tumor metastases, and these data collectively represent 38 studies and over 3,000 patients and 4,000 tumors. We identify four expression-based subtypes of metastasis transcending tumor lineage. The first subtype has extensive copy alterations, higher expression of MYC transcriptional targets and DNA repair genes, and bromodomain inhibitor response association. The second subtype has higher expression of genes involving metabolism and prostaglandin synthesis and regulation. The third subtype has evidence of neuronal differentiation, higher expression of DNA and histone methylation …


A Deep Learning Approach To Identify Missing Is-A Relations In Snomed Ct, Rashmie Abeysinghe, Fengbo Zheng, Elmer V Bernstam, Jay Shi, Olivier Bodenreider, Licong Cui Feb 2023

A Deep Learning Approach To Identify Missing Is-A Relations In Snomed Ct, Rashmie Abeysinghe, Fengbo Zheng, Elmer V Bernstam, Jay Shi, Olivier Bodenreider, Licong Cui

Faculty, Staff and Student Publications

OBJECTIVE: SNOMED CT is the largest clinical terminology worldwide. Quality assurance of SNOMED CT is of utmost importance to ensure that it provides accurate domain knowledge to various SNOMED CT-based applications. In this work, we introduce a deep learning-based approach to uncover missing is-a relations in SNOMED CT.

MATERIALS AND METHODS: Our focus is to identify missing is-a relations between concept-pairs exhibiting a containment pattern (ie, the set of words of one concept being a proper subset of that of the other concept). We use hierarchically related containment concept-pairs as positive instances and hierarchically unrelated containment concept-pairs as negative instances …


Performance Of A Sars-Cov-2 Rt-Pcr Assay With Non-Traditional Specimen Types, Subathra Marimuthu, Holly Aliesky, Heather Ness, Daniya Sheikh, Sathya Rashmit, Dawn Balcom, Leslie A. Wolf Feb 2023

Performance Of A Sars-Cov-2 Rt-Pcr Assay With Non-Traditional Specimen Types, Subathra Marimuthu, Holly Aliesky, Heather Ness, Daniya Sheikh, Sathya Rashmit, Dawn Balcom, Leslie A. Wolf

The University of Louisville Journal of Respiratory Infections

During the first two years of the coronavirus disease 2019 (COVID-19) pandemic, nasopharyngeal (NP) specimens were the gold standard for clinical diagnostic testing. As information about the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causing the pandemic continued to be shared, it was clear that the virus could be detected in other specimen types during an active infection. The University of Louisville Infectious Diseases Laboratory accepted non-traditional specimen types, most without a paired, positive NP result, for research purposes only to support local epidemiology efforts. A real-time reverse transcription-polymerase chain reaction (RT-PCR) assay originally validated for NP specimens was used …


What? Now A Respiratory Syncytial Virus Epidemic, Aya Allam, Steven B Lippmann Feb 2023

What? Now A Respiratory Syncytial Virus Epidemic, Aya Allam, Steven B Lippmann

The University of Louisville Journal of Respiratory Infections

No abstract provided.


N-Of-1 Trials Vs Usual Care In Children With Hypertension: A Pilot Randomized Clinical Trial, Joyce P Samuel, Cynthia S Bell, Joshua A Samuels, Celin Rajan, Adrienne K Walton, Charles Green, Jon E Tyson Feb 2023

N-Of-1 Trials Vs Usual Care In Children With Hypertension: A Pilot Randomized Clinical Trial, Joyce P Samuel, Cynthia S Bell, Joshua A Samuels, Celin Rajan, Adrienne K Walton, Charles Green, Jon E Tyson

Faculty, Staff and Student Publications

BACKGROUND: Blood pressure (BP) is often inadequately controlled in children treated for hypertension, and personalized (n-of-1) trials show promise for tailoring treatment choices. We assessed whether patients whose treatment choices are informed by an n-of-1 trial have improved BP control compared to usual care.

METHODS: A randomized clinical trial was conducted in a pediatric hypertension clinic in Houston from April 2018 to September 2020. Hypertensive adolescents and young adults 10-22 years old were randomized 1:1 to a strategy of n-of-1 trial using ambulatory BP monitoring to inform treatment choice or usual care, with treatment selected by physician preference. The primary …


Cell-Membrane-Coated Nanoparticles For Targeted Drug Delivery To The Brain For The Treatment Of Neurological Diseases, Jianzhuang Li, Yanhao Wei, Chunlin Zhang, Rentang Bi, Yanmei Qiu, Yanan Li, Bo Hu Feb 2023

Cell-Membrane-Coated Nanoparticles For Targeted Drug Delivery To The Brain For The Treatment Of Neurological Diseases, Jianzhuang Li, Yanhao Wei, Chunlin Zhang, Rentang Bi, Yanmei Qiu, Yanan Li, Bo Hu

Faculty, Staff and Student Publications

Neurological diseases (NDs) are a significant cause of disability and death in the global population. However, effective treatments still need to be improved for most NDs. In recent years, cell-membrane-coated nanoparticles (CMCNPs) as drug-targeting delivery systems have become a research hotspot. Such a membrane-derived, nano drug-delivery system not only contributes to avoiding immune clearance but also endows nanoparticles (NPs) with various cellular and functional mimicries. This review article first provides an overview of the function and mechanism of single/hybrid cell-membrane-derived NPs. Then, we highlight the application and safety of CMCNPs in NDs. Finally, we discuss the challenges and opportunities in …


Inflammatory Biomarkers Differ Among Hospitalized Veterans Infected With Alpha, Delta, And Omicron Sars-Cov-2 Variants, Catherine Park, Shahriar Tavakoli-Tabasi, Amir Sharafkhaneh, Benjamin J Seligman, Bret Hicken, Christopher I Amos, Andrew Chou, Javad Razjouyan Feb 2023

Inflammatory Biomarkers Differ Among Hospitalized Veterans Infected With Alpha, Delta, And Omicron Sars-Cov-2 Variants, Catherine Park, Shahriar Tavakoli-Tabasi, Amir Sharafkhaneh, Benjamin J Seligman, Bret Hicken, Christopher I Amos, Andrew Chou, Javad Razjouyan

Faculty, Staff and Students Publications

Mortality due to COVID-19 has been correlated with laboratory markers of inflammation, such as C-reactive protein (CRP). The lower mortality during Omicron variant infections could be explained by variant-specific immune responses or host factors, such as vaccination status. We hypothesized that infections due to Omicron variant cause less inflammation compared to Alpha and Delta, correlating with lower mortality. This was a retrospective cohort study of veterans hospitalized for COVID-19 at the Veterans Health Administration. We compared inflammatory markers among patients hospitalized during Omicron infection with those of Alpha and Delta. We reported the adjusted odds ratio (aOR) of the first …


Anxiety And Stress Among Healthcare Professionals During Covid-19 In Ethiopia: Systematic Review And Meta-Analysis, Aragaw Asfaw Hasen, Abubeker Alebachew Seid, Ahmed Adem Mohammed Feb 2023

Anxiety And Stress Among Healthcare Professionals During Covid-19 In Ethiopia: Systematic Review And Meta-Analysis, Aragaw Asfaw Hasen, Abubeker Alebachew Seid, Ahmed Adem Mohammed

Faculty, Staff and Student Publications

OBJECTIVE: This study intended to assess the impact of COVID-19 pandemic on anxiety and stress among healthcare professionals in Ethiopia.

DESIGN: This study applied a design of systematic review and meta-analysis of observational studies.

DATA SOURCES: ELIGIBILITY CRITERIA AND OUTCOMES: Observational studies examining anxiety and stress among healthcare professionals in Ethiopia following COVID-19 pandemic were considered. The primary outcomes were the prevalence of anxiety and stress and the secondary outcomes were factors associated to the prevalence of anxiety and stress.

DATA EXTRACTION AND SYNTHESIS: Two authors extracted the data and performed quality assessment independently. The Newcastle-Ottawa Scale was used to …


Spatial Molecular And Cellular Determinants Of Stat3 Activation In Liver Fibrosis Progression In Non-Alcoholic Fatty Liver Disease, Jingjing Jiao, Jessica I Sanchez, Omar A Saldarriaga, Luisa M Solis, David J Tweardy, Dipen M Maru, Heather L Stevenson, Laura Beretta Feb 2023

Spatial Molecular And Cellular Determinants Of Stat3 Activation In Liver Fibrosis Progression In Non-Alcoholic Fatty Liver Disease, Jingjing Jiao, Jessica I Sanchez, Omar A Saldarriaga, Luisa M Solis, David J Tweardy, Dipen M Maru, Heather L Stevenson, Laura Beretta

Faculty, Staff and Student Publications

BACKGROUND & AIMS: The prevalence of non-alcoholic fatty liver disease (NAFLD) and its severe form, non-alcoholic steatohepatitis (NASH), is increasing. Individuals with NASH often develop liver fibrosis and advanced liver fibrosis is the main determinant of mortality in individuals with NASH. We and others have reported that STAT3 contributes to liver fibrosis and hepatocellular carcinoma in mice.

METHODS: Here, we explored whether STAT3 activation in hepatocyte and non-hepatocyte areas, measured by phospho-STAT3 (pSTAT3), is associated with liver fibrosis progression in 133 patients with NAFLD. We further characterized the molecular and cellular determinants of STAT3 activation by integrating spatial distribution and …


Disparities In Mortality Among Acute Myeloid Leukemia-Related Hospitalizations, Sara Taveras Alam, Deepa Dongarwar, Elyse Lopez, Sarvari Yellapragada, Gustavo Rivero, Quillan Huang, Courtney Miler-Chism, Martha Mims, Hamisu M Salihu Feb 2023

Disparities In Mortality Among Acute Myeloid Leukemia-Related Hospitalizations, Sara Taveras Alam, Deepa Dongarwar, Elyse Lopez, Sarvari Yellapragada, Gustavo Rivero, Quillan Huang, Courtney Miler-Chism, Martha Mims, Hamisu M Salihu

Faculty, Staff and Student Publications

Racial and socioeconomic disparities have become apparent in acute myeloid leukemia (AML) outcomes. We conducted a retrospective cohort study of hospitalizations for adults with a diagnosis of AML from 2009 to 2018 in the Nationwide Inpatient Sample (NIS). We categorized patients' ages in groups of≥60 years and stratified them by reported race/ethnicity. Exposures of interest were patient sociodemographics, hospital characteristics, and Elixhauser-comorbidity Index. Outcome of interest was in-hospital death. Statistical analyses included survey logistic regression to generate adjusted odds ratios (aORs) and 95% confidence intervals (CIs) to quantify the independent associations between patient characteristics and mortality. Of 622,417 AML-related hospitalizations, …


Relationships Between Urinary Metals And Diabetes Traits Among Mexican Americans In Starr County, Texas, Usa, Margaret C Weiss, Yu-Hsuan Shih, Molly Scannell Bryan, Brian P Jackson, David Aguilar, Craig L Hanis, Maria Argos, Robert M Sargis Feb 2023

Relationships Between Urinary Metals And Diabetes Traits Among Mexican Americans In Starr County, Texas, Usa, Margaret C Weiss, Yu-Hsuan Shih, Molly Scannell Bryan, Brian P Jackson, David Aguilar, Craig L Hanis, Maria Argos, Robert M Sargis

Faculty, Staff and Student Publications

Hispanics/Latinos have higher rates of type 2 diabetes (T2D), and the origins of these disparities are poorly understood. Environmental endocrine-disrupting chemicals (EDCs), including some metals and metalloids, are implicated as diabetes risk factors. Data indicate that Hispanics/Latinos may be disproportionately exposed to EDCs, yet they remain understudied with respect to environmental exposures and diabetes. The objective of this study is to determine how metal exposures contribute to T2D progression by evaluating the associations between 8 urinary metals and measures of glycemic status in 414 normoglycemic or prediabetic adults living in Starr County, Texas, a Hispanic/Latino community with high rates of …


Reduced Spag17 Expression In Systemic Sclerosis Triggers Myofibroblast Transition And Drives Fibrosis, Paulene Sapao, Elisha D O Roberson, Bo Shi, Shervin Assassi, Brian Skaug, Fred Lee, Alexandra Naba, Bethany E Perez White, Carlos Córdova-Fletes, Pei-Suen Tsou, Amr H Sawalha, Johann E Gudjonsson, Feiyang Ma, Priyanka Verma, Dibyendu Bhattacharyya, Mary Carns, Jerome F Strauss, Delphine Sicard, Daniel J Tschumperlin, Melissa I Champer, Paul J Campagnola, Maria E Teves, John Varga Feb 2023

Reduced Spag17 Expression In Systemic Sclerosis Triggers Myofibroblast Transition And Drives Fibrosis, Paulene Sapao, Elisha D O Roberson, Bo Shi, Shervin Assassi, Brian Skaug, Fred Lee, Alexandra Naba, Bethany E Perez White, Carlos Córdova-Fletes, Pei-Suen Tsou, Amr H Sawalha, Johann E Gudjonsson, Feiyang Ma, Priyanka Verma, Dibyendu Bhattacharyya, Mary Carns, Jerome F Strauss, Delphine Sicard, Daniel J Tschumperlin, Melissa I Champer, Paul J Campagnola, Maria E Teves, John Varga

Faculty, Staff and Student Publications

Systemic sclerosis (SSc) is a clinically heterogeneous fibrotic disease with no effective treatment. Myofibroblasts are responsible for unresolving synchronous skin and internal organ fibrosis in SSc, but the drivers of sustained myofibroblast activation remain poorly understood. Using unbiased transcriptome analysis of skin biopsies, we identified the downregulation of SPAG17 in multiple independent cohorts of patients with SSc, and by orthogonal approaches, we observed a significant negative correlation between SPAG17 and fibrotic gene expression. Fibroblasts and endothelial cells explanted from SSc skin biopsies showed reduced chromatin accessibility at the SPAG17 locus. Remarkably, mice lacking Spag17 showed spontaneous skin fibrosis with increased …


Antibody Therapies For The Treatment Of Acute Myeloid Leukemia: Exploring Current And Emerging Therapeutic Targets, Joshua W Morse, Margarita Rios, John Ye, Adan Rios, Cheng Cheng Zhang, Naval G Daver, Courtney D Dinardo, Ningyan Zhang, Zhiqiang An Feb 2023

Antibody Therapies For The Treatment Of Acute Myeloid Leukemia: Exploring Current And Emerging Therapeutic Targets, Joshua W Morse, Margarita Rios, John Ye, Adan Rios, Cheng Cheng Zhang, Naval G Daver, Courtney D Dinardo, Ningyan Zhang, Zhiqiang An

Faculty, Staff and Student Publications

INTRODUCTION: Acute myeloid leukemia (AML) is the most common and deadly type of leukemia affecting adults. It is typically managed with rounds of non-targeted chemotherapy followed by hematopoietic stem cell transplants, but this is only possible in patients who can tolerate these harsh treatments and many are elderly and frail. With the identification of novel tumor-specific cell surface receptors, there is great conviction that targeted antibody therapies will soon become available for these patients.

AREAS COVERED: In this review, we describe the current landscape of known target receptors for monospecific and bispecific antibody-based therapeutics for AML. Here, we characterize each …


Acculturation, Dietary Behaviors, And Macronutrient Intake Among Mexican Americans With Prediabetes: The Starr County Diabetes Prevention Initiative, Sharon A Brown, Heather A Becker, Alexandra A García, Mary M Velasquez, Hirofumi Tanaka, Mary A Winter, William B Perkison, Eric L Brown, David Aguilar, Craig L Hanis Feb 2023

Acculturation, Dietary Behaviors, And Macronutrient Intake Among Mexican Americans With Prediabetes: The Starr County Diabetes Prevention Initiative, Sharon A Brown, Heather A Becker, Alexandra A García, Mary M Velasquez, Hirofumi Tanaka, Mary A Winter, William B Perkison, Eric L Brown, David Aguilar, Craig L Hanis

Faculty, Staff and Student Publications

PURPOSE: The purpose of the study was to examine the influences of sex and acculturation on dietary behaviors, macronutrient intake, and dietary quality in participants enrolled in a diabetes prevention initiative in Starr County, Texas.

METHODS: Baseline data from the Starr County diabetes prevention study (N = 300) were analyzed-acculturation (country of origin, years in Starr County, language and food preferences), depressive symptoms (Patient Health Questionnaire-9), healthy eating self-efficacy (Weight Efficacy Lifestyle Questionnaire-Short Form), diet quality (USDA Healthy Eating Index), fat avoidance (Fat Avoidance Scale, Spanish version), and macronutrients. Descriptive statistics and univariate analysis of covariance were used to examine …


Pyridoxamine Treatment Ameliorates Large Artery Stiffening And Cerebral Artery Endothelial Dysfunction In Old Mice, Emily H Reeve, Elise K Kronquist, Julia R Wolf, Byron Lee, Aleena Khurana, Hanson Pham, Abigail E Cullen, Jessica A Peterson, Antonio Meza, R Colton Bramwell, Laura Villasana, Daniel R Machin, Grant D Henson, Ashley E Walker Feb 2023

Pyridoxamine Treatment Ameliorates Large Artery Stiffening And Cerebral Artery Endothelial Dysfunction In Old Mice, Emily H Reeve, Elise K Kronquist, Julia R Wolf, Byron Lee, Aleena Khurana, Hanson Pham, Abigail E Cullen, Jessica A Peterson, Antonio Meza, R Colton Bramwell, Laura Villasana, Daniel R Machin, Grant D Henson, Ashley E Walker

Faculty, Staff and Student Publications

Age-related increases in large artery stiffness are associated with cerebrovascular dysfunction and cognitive impairment. Pyridoxamine treatment prevents large artery stiffening with advancing age, but the effects of pyridoxamine treatment on the cerebral vasculature or cognition is unknown. The purpose of this study was to investigate the effects of pyridoxamine on blood pressure, large artery stiffness, cerebral artery function, and cognitive function in old mice. Old male C57BL/6 mice consumed either pyridoxamine (2 g/L) or vehicle control in drinking water for ∼7.5 months and were compared with young male C57BL/6 mice. From pre- to post-treatment, systolic blood pressure increased in old …


Association Of Metformin With The Development Of Age-Related Macular Degeneration, Amitha Domalpally, Samuel A Whittier, Qing Pan, Dana M Dabelea, Christine H Darwin, William C Knowler, Christine G Lee, Jose A Luchsinger, Neil H White, Emily Y Chew Feb 2023

Association Of Metformin With The Development Of Age-Related Macular Degeneration, Amitha Domalpally, Samuel A Whittier, Qing Pan, Dana M Dabelea, Christine H Darwin, William C Knowler, Christine G Lee, Jose A Luchsinger, Neil H White, Emily Y Chew

Faculty, Staff and Student Publications

IMPORTANCE: Age-related macular degeneration (AMD) is a leading cause of blindness with no treatment available for early stages. Retrospective studies have shown an association between metformin and reduced risk of AMD.

OBJECTIVE: To investigate the association between metformin use and age-related macular degeneration (AMD).

DESIGN, SETTING, AND PARTICIPANTS: The Diabetes Prevention Program Outcomes Study is a cross-sectional follow-up phase of a large multicenter randomized clinical trial, Diabetes Prevention Program (1996-2001), to investigate the association of treatment with metformin or an intensive lifestyle modification vs placebo with preventing the onset of type 2 diabetes in a population at high risk for …


Glucocorticoid Therapy As First-Line Treatment In Primary Hypophysitis: A Systematic Review And Individual Patient Data Meta-Analysis, Brijesh Krishnappa, Ravikumar Shah, Saba Samad Memon, Chakra Diwaker, Anurag R Lila, Virendra A Patil, Nalini S Shah, Tushar R Bandgar Feb 2023

Glucocorticoid Therapy As First-Line Treatment In Primary Hypophysitis: A Systematic Review And Individual Patient Data Meta-Analysis, Brijesh Krishnappa, Ravikumar Shah, Saba Samad Memon, Chakra Diwaker, Anurag R Lila, Virendra A Patil, Nalini S Shah, Tushar R Bandgar

Faculty, Staff and Student Publications

OBJECTIVES: High-dose glucocorticoids are associated with improved recovery of deficits in primary autoimmune hypophysitis (PAH), but optimal dosing, route, and duration are unclear.

DESIGN: We reviewed literature for first-line glucocorticoid treatment in PAH until December 2021 and performed an individual patient data meta-analysis to analyze clinical, hormonal, and radiological outcomes with respect to route, dose, and duration (12 weeks) of glucocorticoid treatment according to disease severity.

RESULTS: A total of 153 PAH patients from 83 publications were included. The median age at presentation was 41 (32.5-48) years with a female preponderance (70.3%). Visual field recovery was significantly better with i.v. …


The Spatial And Temporal Structure Of Neural Activity Across The Fly Brain, Katherine E Maturen, Cheri L Canon, Joel G Fletcher, Amy K Hara, David H Kim, Jonathan B Kruskal, Frank H Miller, Erick M Remer, Stuart G Silverman Feb 2023

The Spatial And Temporal Structure Of Neural Activity Across The Fly Brain, Katherine E Maturen, Cheri L Canon, Joel G Fletcher, Amy K Hara, David H Kim, Jonathan B Kruskal, Frank H Miller, Erick M Remer, Stuart G Silverman

Faculty, Staff and Student Publications

In 2012, the Society of Abdominal Radiology (SAR) was formed by the merger of the Society of Gastrointestinal Radiologists (SGR) and the Society of Uroradiology (SUR). On the occasion of SAR's ten year anniversary, this commentary describes important changes in society structure, the growth and diversity of society membership, new educational and research initiatives, intersociety and international outreach, and plans for the future.


Ct Colonography Is The Perfect Colorectal Screening Test That Unfortunately Few People Use Yet, David H Kim Feb 2023

Ct Colonography Is The Perfect Colorectal Screening Test That Unfortunately Few People Use Yet, David H Kim

Faculty, Staff and Student Publications

Take-home points

  • • Computed tomography colonography (CTC) is the perfect test among the colorectal cancer screening options.
  • • The excellent performance of CTC is on par with colonoscopy for both cancers and precancerous polyps, yet without the risks associated with perforation and sedation.
  • • CTC presents an opportunity to serve as an important filter and send the small numbers of high-risk lesions for immediate removal while allowing the identification of the few true precursor targets from the large majority of benign polyps.
  • • This selective polypectomy strategy at CTC minimizes complications and waste of resources while maintaining advanced neoplasia detection …


Zone 1 Endovascular Balloon Occlusion Of The Aorta Vs Resuscitative Thoracotomy For Patient Resuscitation After Severe Hemorrhagic Shock, Alexis L Cralley, Navin Vigneshwar, Ernest E Moore, Joseph Dubose, Megan L Brenner, Angela Sauaia, Aast Aorta Study Group Feb 2023

Zone 1 Endovascular Balloon Occlusion Of The Aorta Vs Resuscitative Thoracotomy For Patient Resuscitation After Severe Hemorrhagic Shock, Alexis L Cralley, Navin Vigneshwar, Ernest E Moore, Joseph Dubose, Megan L Brenner, Angela Sauaia, Aast Aorta Study Group

Faculty, Staff and Student Publications

IMPORTANCE: Aortic occlusion (AO) is a lifesaving therapy for the treatment of severe traumatic hemorrhagic shock; however, there remains controversy whether AO should be accomplished via resuscitative thoracotomy (RT) or via endovascular balloon occlusion of the aorta (REBOA) in zone 1.

OBJECTIVE: To compare outcomes of AO via RT vs REBOA zone 1.

DESIGN, SETTING, AND PARTICIPANTS: This was a comparative effectiveness research study using a multicenter registry of postinjury AO from October 2013 to September 2021. AO via REBOA zone 1 (above celiac artery) was compared with RT performed in the emergency department of facilities experienced in both procedures …


Effect Of Nintedanib In Patients With Systemic Sclerosis-Associated Interstitial Lung Disease And Risk Factors For Rapid Progression, Dinesh Khanna, Toby M Maher, Elizabeth R Volkmann, Yannick Allanore, Vanessa Smith, Shervin Assassi, Michael Kreuter, Anna-Maria Hoffmann-Vold, Masataka Kuwana, Christian Stock, Margarida Alves, Steven Sambevski, Christopher P Denton Feb 2023

Effect Of Nintedanib In Patients With Systemic Sclerosis-Associated Interstitial Lung Disease And Risk Factors For Rapid Progression, Dinesh Khanna, Toby M Maher, Elizabeth R Volkmann, Yannick Allanore, Vanessa Smith, Shervin Assassi, Michael Kreuter, Anna-Maria Hoffmann-Vold, Masataka Kuwana, Christian Stock, Margarida Alves, Steven Sambevski, Christopher P Denton

Faculty, Staff and Student Publications

Objective: To investigate the rate of decline in forced vital capacity (FVC), and the effect of nintedanib on the rate of decline in FVC, in subjects with systemic sclerosis-associated interstitial lung disease (SSc-ILD) who had risk factors for rapid decline in FVC.

Methods: The SENSCIS trial enrolled subjects with SSc and fibrotic ILD of ≥10% extent on high-resolution CT. The rate of decline in FVC over 52 weeks was analysed in all subjects and in those with early SSc (< 18 months since first non-Raynaud symptom), elevated inflammatory markers (C reactive protein ≥6 mg/L and/or platelets ≥330×109/L) or significant skin fibrosis (modified Rodnan skin score (mRSS) 15-40 or mRSS ≥18) at baseline.

Results: In the placebo group, the rate of decline in FVC was numerically greater in subjects with < 18 months since first non-Raynaud symptom (-167.8 mL/year), elevated inflammatory markers (-100.7 mL/year), mRSS 15-40 (-121.7 mL/year) or mRSS ≥18 (-131.7 mL/year) than in all subjects (-93.3 mL/year). Nintedanib reduced the rate of FVC decline across subgroups, with a numerically greater effect in patients with these risk factors for rapid FVC decline.

Conclusion: In the …


Eosinophils Protect Against Acetaminophen-Induced Liver Injury Through Cyclooxygenase-Mediated Il-4/Il-13 Production, Long Xu, Yang Yang, Jiali Jiang, Yankai Wen, Jong-Min Jeong, Christoph Emontzpohl, Constance L Atkins, Kangho Kim, Elizabeth A Jacobsen, Hua Wang, Cynthia Ju Feb 2023

Eosinophils Protect Against Acetaminophen-Induced Liver Injury Through Cyclooxygenase-Mediated Il-4/Il-13 Production, Long Xu, Yang Yang, Jiali Jiang, Yankai Wen, Jong-Min Jeong, Christoph Emontzpohl, Constance L Atkins, Kangho Kim, Elizabeth A Jacobsen, Hua Wang, Cynthia Ju

Faculty, Staff and Student Publications

BACKGROUND AND AIMS: A better understanding of the underlying mechanism of acetaminophen (APAP)-induced liver injury (AILI) remains an important endeavor to develop therapeutic approaches. Eosinophils have been detected in liver biopsies of patients with APAP overdose. We recently demonstrated a profound protective role of eosinophils against AILI; however, the molecular mechanism had not been elucidated.

APPROACH AND RESULTS: In agreement with our previous data from experiments using genetic deletion of eosinophils, we found that depletion of eosinophils in wild-type (WT) mice by an anti-IL-15 antibody resulted in exacerbated AILI. Moreover, adoptive transfer of eosinophils significantly reduced liver injury and mortality …


Percutaneous Revascularization For The Treatment Of Refractory Digital Ischemia In Systemic Sclerosis, Lily A Romero-Karam, Kevin A Honan, Salman A Arain, Maureen D Mayes Feb 2023

Percutaneous Revascularization For The Treatment Of Refractory Digital Ischemia In Systemic Sclerosis, Lily A Romero-Karam, Kevin A Honan, Salman A Arain, Maureen D Mayes

Faculty, Staff and Student Publications

OBJECTIVE: The objective of this study is to explore the role of adjunctive percutaneous revascularization of the hand in the management of patients with systemic sclerosis-associated refractory digital ischemia.

METHODS: We present our initial experience of using percutaneous upper extremity interventions to treat patients with systemic sclerosis and symptomatic Raynaud's phenomenon who presented with either refractory digital ischemia or non-healing ulcers. We discuss patient characteristics, procedural findings, and short-term clinical outcomes of these interventions.

RESULTS: We performed 14 interventions in 6 patients with non-healing digital ulcers or refractory ischemia secondary to systemic sclerosis. Angioplasty was performed at or below the …


Association Of Frailty And The Expanded Operative Stress Score With Preoperative Acute Serious Conditions, Complications, And Mortality In Males Compared To Females: A Retrospective Observational Study, Qi Yan, Jeongsoo Kim, Daniel E Hall, Myrick C Shinall, Katherine Moll Reitz, Karyn B Stitzenberg, Lillian S Kao, Elizabeth L George, Ada Youk, Chen-Pin Wang, Jonathan C Silverstein, Elmer V Bernstam, Paula K Shireman Feb 2023

Association Of Frailty And The Expanded Operative Stress Score With Preoperative Acute Serious Conditions, Complications, And Mortality In Males Compared To Females: A Retrospective Observational Study, Qi Yan, Jeongsoo Kim, Daniel E Hall, Myrick C Shinall, Katherine Moll Reitz, Karyn B Stitzenberg, Lillian S Kao, Elizabeth L George, Ada Youk, Chen-Pin Wang, Jonathan C Silverstein, Elmer V Bernstam, Paula K Shireman

Faculty, Staff and Student Publications

OBJECTIVE: The aim of this study was to expand Operative Stress Score (OSS) increasing procedural coverage and assessing OSS and frailty association with Preoperative Acute Serious Conditions (PASC), complications and mortality in females versus males.

SUMMARY BACKGROUND DATA: Veterans Affairs male-dominated study showed high mortality in frail veterans even after very low stress surgeries (OSS1).

METHODS: Retrospective cohort using NSQIP data (2013-2019) merged with 180-day postoperative mortality from multiple hospitals to evaluate PASC, 30-day complications and 30-, 90-, and 180-day mortality.

RESULTS: OSS expansion resulted in 98.2% case coverage versus 87.0% using the original. Of 82,269 patients (43.8% male), 7.9% …


Prospective Evaluation Of The Fungitell® (1-->3) Beta-D-Glucan Assay As A Diagnostic Tool For Invasive Fungal Disease In Pediatric Allogeneic Hematopoietic Cell Transplantation: A Report From The Children’S Oncology Group, William R Otto, Christopher C Dvorak, Craig L K Boge, Luis Ostrosky-Zeichner, Adam J Esbenshade, Michael L Nieder, Sarah Alexander, William J Steinbach, Ha Dang, Doojduen Villaluna, Lu Chen, Micah Skeens, Theoklis E Zaoutis, Lillian Sung, Brian T Fisher Feb 2023

Prospective Evaluation Of The Fungitell® (1-->3) Beta-D-Glucan Assay As A Diagnostic Tool For Invasive Fungal Disease In Pediatric Allogeneic Hematopoietic Cell Transplantation: A Report From The Children’S Oncology Group, William R Otto, Christopher C Dvorak, Craig L K Boge, Luis Ostrosky-Zeichner, Adam J Esbenshade, Michael L Nieder, Sarah Alexander, William J Steinbach, Ha Dang, Doojduen Villaluna, Lu Chen, Micah Skeens, Theoklis E Zaoutis, Lillian Sung, Brian T Fisher

Faculty, Staff and Student Publications

BACKGROUND: Invasive fungal disease (IFD) is a major source of morbidity and mortality for hematopoietic cell transplant (HCT) recipients. Non-invasive biomarkers, such as the beta-D-glucan assay, may improve the diagnosis of IFD. The objective was to define the utility of surveillance testing using Fungitell® beta-D-glucan (BDG) assay in children receiving antifungal prophylaxis in the immediate post-HCT period.

METHODS: Weekly surveillance blood testing with the Fungitell® BDG assay was performed during the early post-HCT period in the context of a randomized trial of children, adolescents, and young adults undergoing allogeneic HCT allocated to triazole or caspofungin prophylaxis. Positivity was defined at …