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Factors Affecting The Ability Of Patients With Complex Vascular Anomalies To Navigate The Healthcare System, Bryan Sisk, Sunny Lin, Anna M Kerr Jan 2024

Factors Affecting The Ability Of Patients With Complex Vascular Anomalies To Navigate The Healthcare System, Bryan Sisk, Sunny Lin, Anna M Kerr

2020-Current year OA Pubs

BACKGROUND: Vascular anomalies (VAs) are rare congenital disorders that can cause pain, disfigurement, coagulopathy, asymmetric growth, and disability. Patients with complex VAs experience multiple barriers to accessing expert care. It is imperative to understand which factors support these patients' ability to navigate the healthcare system.

RESULTS: We surveyed adult patients with VAs using previously validated measures, recruiting participants from five patient advocacy groups and multidisciplinary VA clinics. The primary outcome was self-reported ability to access needed medical care, using the "Navigating the Healthcare System" subscale of the Health Literacy Questionnaire. We evaluated factors associated with the ability to navigate the …


Identification Of Molecular Subphenotypes In Two Cohorts Of Paediatric Ards, Nadir Yehya, Matt S Zinter, Jill M Thompson, Michelle J Lim, Mark R Hanudel, Mustafa F Alkhouli, Hector Wong, Matthew N Alder, Daniel J Mckeone, E Scott Halstead, Pratik Sinha, Anil Sapru Jan 2024

Identification Of Molecular Subphenotypes In Two Cohorts Of Paediatric Ards, Nadir Yehya, Matt S Zinter, Jill M Thompson, Michelle J Lim, Mark R Hanudel, Mustafa F Alkhouli, Hector Wong, Matthew N Alder, Daniel J Mckeone, E Scott Halstead, Pratik Sinha, Anil Sapru

2020-Current year OA Pubs

BACKGROUND: Two subphenotypes of acute respiratory distress syndrome (ARDS), hypoinflammatory and hyperinflammatory, have been reported in adults and in a single paediatric cohort. The relevance of these subphenotypes in paediatrics requires further investigation. We aimed to identify subphenotypes in two large observational cohorts of paediatric ARDS and assess their congruence with prior descriptions.

METHODS: We performed latent class analysis (LCA) separately on two cohorts using biomarkers as inputs. Subphenotypes were compared on clinical characteristics and outcomes. Finally, we assessed overlap with adult cohorts using parsimonious classifiers.

FINDINGS: In two cohorts from the Children's Hospital of Philadelphia (n=333) and from a …


Draft Genomes Of 12 Bifidobacterium Isolates From Human Ibd Fecal Samples, Cole E Souza, Nicole E Jacobson, Michelle A An, Lindsay Droit, Alejandro A Vega, Mariel Rosales, Kathie A Mihindukulasuriya, Karina Pastrana, Scott A Handley, Miles Parkes, Joanna Rimmer, David Wang, Elizabeth A Dinsdale, Robert A Edwards, Anca M Segall Jan 2024

Draft Genomes Of 12 Bifidobacterium Isolates From Human Ibd Fecal Samples, Cole E Souza, Nicole E Jacobson, Michelle A An, Lindsay Droit, Alejandro A Vega, Mariel Rosales, Kathie A Mihindukulasuriya, Karina Pastrana, Scott A Handley, Miles Parkes, Joanna Rimmer, David Wang, Elizabeth A Dinsdale, Robert A Edwards, Anca M Segall

2020-Current year OA Pubs

Twelve


Post-Exposure Intranasal Ifnα Suppresses Replication And Neuroinvasion Of Venezuelan Equine Encephalitis Virus Within Olfactory Sensory Neurons, Matthew D Cain, N Rubin Klein, Xiaoping Jiang, Hamid Salimi, Qingping Wu, Mark J Miller, William B Klimstra, Robyn S Klein Jan 2024

Post-Exposure Intranasal Ifnα Suppresses Replication And Neuroinvasion Of Venezuelan Equine Encephalitis Virus Within Olfactory Sensory Neurons, Matthew D Cain, N Rubin Klein, Xiaoping Jiang, Hamid Salimi, Qingping Wu, Mark J Miller, William B Klimstra, Robyn S Klein

2020-Current year OA Pubs

BACKGROUND: Venezuelan Equine Encephalitis virus (VEEV) may enter the central nervous system (CNS) within olfactory sensory neurons (OSN) that originate in the nasal cavity after intranasal exposure. While it is known that VEEV has evolved several mechanisms to inhibit type I interferon (IFN) signaling within infected cells, whether this inhibits virologic control during neuroinvasion along OSN has not been studied.

METHODS: We utilized an established murine model of intranasal infection with VEEV and a repository of scRNAseq data from IFN-treated OSN to assess the cellular targets and IFN signaling responses after VEEV exposure.

RESULTS: We found that immature OSN, which …


Gut Microbiome And Antibiotic Resistance Effects During Travelers' Diarrhea Treatment And Prevention, Kevin S Blake, Drew J Schwartz, Srinand Paruthiyil, Bin Wang, Jie Ning, Harris Whiteson, Gautam Dantas, Et Al. Jan 2024

Gut Microbiome And Antibiotic Resistance Effects During Travelers' Diarrhea Treatment And Prevention, Kevin S Blake, Drew J Schwartz, Srinand Paruthiyil, Bin Wang, Jie Ning, Harris Whiteson, Gautam Dantas, Et Al.

2020-Current year OA Pubs

The travelers' gut microbiome is potentially assaulted by acute and chronic perturbations (e.g., diarrhea, antibiotic use, and different environments). Prior studies of the impact of travel and travelers' diarrhea (TD) on the microbiome have not directly compared antibiotic regimens, and studies of different antibiotic regimens have not considered travelers' microbiomes. This gap is important to be addressed as the use of antibiotics to treat or prevent TD-even in moderate to severe cases or in regions with high infectious disease burden-is controversial based on the concerns for unintended consequences to the gut microbiome and antimicrobial resistance (AMR) emergence. Our study addresses …


Susceptibility Of Toxoplasma Gondii To Autophagy In Human Cells Relies On Multiple Interacting Parasite Loci, Nicholas Rinkenberger, Alex Rosenberg, Joshua B Radke, Jaya Bhushan, Tadakimi Tomita, Louis M Weiss, L David Sibley Jan 2024

Susceptibility Of Toxoplasma Gondii To Autophagy In Human Cells Relies On Multiple Interacting Parasite Loci, Nicholas Rinkenberger, Alex Rosenberg, Joshua B Radke, Jaya Bhushan, Tadakimi Tomita, Louis M Weiss, L David Sibley

2020-Current year OA Pubs

Autophagy is a process used by cells to recycle organelles and macromolecules and to eliminate intracellular pathogens. Previous studies have shown that some stains of


Human Pluripotent Stem Cell Modeling Of Alveolar Type 2 Cell Dysfunction Caused By Abca3 Mutations, Yuliang L Sun, Erin E Hennessey, Hillary Heins, Ping Yang, Carlos Villacorta-Martin, Julian Kwan, Krithi Gopalan, Marianne James, Andrew Emili, F. Sessions Cole, Jennifer A. Wambach, Darrell N. Kotton Jan 2024

Human Pluripotent Stem Cell Modeling Of Alveolar Type 2 Cell Dysfunction Caused By Abca3 Mutations, Yuliang L Sun, Erin E Hennessey, Hillary Heins, Ping Yang, Carlos Villacorta-Martin, Julian Kwan, Krithi Gopalan, Marianne James, Andrew Emili, F. Sessions Cole, Jennifer A. Wambach, Darrell N. Kotton

2020-Current year OA Pubs

Mutations in ATP-binding cassette A3 (ABCA3), a phospholipid transporter critical for surfactant homeostasis in pulmonary alveolar type II epithelial cells (AEC2s), are the most common genetic causes of childhood interstitial lung disease (chILD). Treatments for patients with pathological variants of ABCA3 mutations are limited, in part due to a lack of understanding of disease pathogenesis resulting from an inability to access primary AEC2s from affected children. Here, we report the generation of AEC2s from affected patient induced pluripotent stem cells (iPSCs) carrying homozygous versions of multiple ABCA3 mutations. We generated syngeneic CRISPR/Cas9 gene-corrected and uncorrected iPSCs and ABCA3-mutant knockin ABCA3:GFP …


Targeting Cell-Type-Specific, Choroid-Peripheral Immune Signaling To Treat Age-Related Macular Degeneration, Joseph B Lin, Andrea Santeford, Jason J Colasanti, Yoon Lee, Aaditya V Shah, Tzu Jui Wang, Philip A Ruzycki, Rajendra S Apte Jan 2024

Targeting Cell-Type-Specific, Choroid-Peripheral Immune Signaling To Treat Age-Related Macular Degeneration, Joseph B Lin, Andrea Santeford, Jason J Colasanti, Yoon Lee, Aaditya V Shah, Tzu Jui Wang, Philip A Ruzycki, Rajendra S Apte

2020-Current year OA Pubs

Age-related macular degeneration (AMD) is a leading cause of blindness featuring pathogenic neovascularization of the choroidal vasculature (CNV). Although systemic immunity plays a role in AMD, the ocular signals that recruit and activate immune cells remain poorly defined. Using single-cell RNA sequencing, we prospectively profile peripheral blood mononuclear cells from 65 individuals including AMD and controls, which we integrate with existing choroid data. We generate a network of choroid-peripheral immune interactions dysregulated in AMD, including known AMD-relevant gene vascular endothelial growth factor (VEGF) receptor 2. Additionally, we find CYR61 is upregulated in choroidal veins and may signal to circulating monocytes. …


Progressive Left Ventricular Remodeling For Predicting Mortality In Children With Dilated Cardiomyopathy: The Pediatric Cardiomyopathy Registry, Paul F Kantor, Charles E Canter, Et Al. Jan 2024

Progressive Left Ventricular Remodeling For Predicting Mortality In Children With Dilated Cardiomyopathy: The Pediatric Cardiomyopathy Registry, Paul F Kantor, Charles E Canter, Et Al.

2020-Current year OA Pubs

BACKGROUND: Pediatric dilated cardiomyopathy often leads to death or cardiac transplantation. We sought to determine whether changes in left ventricular (LV) end-diastolic dimension (LVEDD), LV end-diastolic posterior wall thickness, and LV fractional shortening (LVFS) over time may help predict adverse outcomes.

METHODS AND RESULTS: We studied children up to 18 years old with dilated cardiomyopathy, enrolled between 1990 and 2009 in the Pediatric Cardiomyopathy Registry. Changes in LVFS, LVEDD, LV end-diastolic posterior wall thickness, and the LV end-diastolic posterior wall thickness:LVEDD ratio between baseline and follow-up echocardiograms acquired ≈1 year after diagnosis were determined for children who, at the 1-year …


Very-Low-Density Lipoprotein Triglyceride And Free Fatty Acid Plasma Kinetics In Women With High Or Low Brown Adipose Tissue Volume And Overweight/Obesity, Maria Chondronikola, Jun Yoshino, Raja Ramaswamy, Joseph Daniel Giardina, Richard Laforest, Richard L Wahl, Bruce W Patterson, Bettina Mittendorfer, Samuel Klein Jan 2024

Very-Low-Density Lipoprotein Triglyceride And Free Fatty Acid Plasma Kinetics In Women With High Or Low Brown Adipose Tissue Volume And Overweight/Obesity, Maria Chondronikola, Jun Yoshino, Raja Ramaswamy, Joseph Daniel Giardina, Richard Laforest, Richard L Wahl, Bruce W Patterson, Bettina Mittendorfer, Samuel Klein

2020-Current year OA Pubs

Although a high amount of brown adipose tissue (BAT) is associated with low plasma triglyceride concentration, the mechanism responsible for this relationship in people is not clear. Here, we evaluate the interrelationships among BAT, very-low-density lipoprotein triglyceride (VLDL-TG), and free fatty acid (FFA) plasma kinetics during thermoneutrality in women with overweight/obesity who had a low (< 20 mL) or high (≥20 mL) volume of cold-activated BAT (assessed by using positron emission tomography in conjunction with 2-deoxy-2-[


Hormonal Basis Of Sex Differences In Anesthetic Sensitivity, Andrzej Z Wasilczuk, Cole Rinehart, Adeeti Aggarwal, Martha E Stone, George A Mashour, Michael S Avidan, Max B Kelz, Alex Proekt, Reccognition Study Group Jan 2024

Hormonal Basis Of Sex Differences In Anesthetic Sensitivity, Andrzej Z Wasilczuk, Cole Rinehart, Adeeti Aggarwal, Martha E Stone, George A Mashour, Michael S Avidan, Max B Kelz, Alex Proekt, Reccognition Study Group

2020-Current year OA Pubs

General anesthesia-a pharmacologically induced reversible state of unconsciousness-enables millions of life-saving procedures. Anesthetics induce unconsciousness in part by impinging upon sexually dimorphic and hormonally sensitive hypothalamic circuits regulating sleep and wakefulness. Thus, we hypothesized that anesthetic sensitivity should be sex-dependent and modulated by sex hormones. Using distinct behavioral measures, we show that at identical brain anesthetic concentrations, female mice are more resistant to volatile anesthetics than males. Anesthetic sensitivity is bidirectionally modulated by testosterone. Castration increases anesthetic resistance. Conversely, testosterone administration acutely increases anesthetic sensitivity. Conversion of testosterone to estradiol by aromatase is partially responsible for this effect. In contrast, …


Ketosis Prevents Abdominal Aortic Aneurysm Rupture Through C-C Chemokine Receptor Type 2 Downregulation And Enhanced Extracellular Matrix Balance, Sergio Sastriques-Dunlop, Santiago Elizondo-Benedetto, Batool Arif, Rodrigo Meade, Mohamed S Zaghloul, Hannah Luehmann, Gyu S Heo, Sean J English, Yongjian Liu, Mohamed A Zayed Jan 2024

Ketosis Prevents Abdominal Aortic Aneurysm Rupture Through C-C Chemokine Receptor Type 2 Downregulation And Enhanced Extracellular Matrix Balance, Sergio Sastriques-Dunlop, Santiago Elizondo-Benedetto, Batool Arif, Rodrigo Meade, Mohamed S Zaghloul, Hannah Luehmann, Gyu S Heo, Sean J English, Yongjian Liu, Mohamed A Zayed

2020-Current year OA Pubs

Abdominal aortic aneurysms (AAAs) are prevalent with aging, and AAA rupture is associated with increased mortality. There is currently no effective medical therapy to prevent AAA rupture. The monocyte chemoattractant protein (MCP-1)/C-C chemokine receptor type 2 (CCR2) axis critically regulates AAA inflammation, matrix-metalloproteinase (MMP) production, and extracellular matrix (ECM) stability. We therefore hypothesized that a diet intervention that can modulate CCR2 axis may therapeutically impact AAA risk of rupture. Since ketone bodies (KBs) can trigger repair mechanisms in response to inflammation, we evaluated whether systemic ketosis in vivo could reduce CCR2 and AAA progression. Male Sprague-Dawley rats underwent surgical AAA …


Catalytic Isoforms Of Amp-Activated Protein Kinase Differentially Regulate Impdh Activity And Photoreceptor Neuron Function, Tae Jun Lee, Yo Sasaki, Philip A. Ruzycki, Norimitsu Ban, Joseph B. Lin, Hung-Ting Wu, Andrea Santeford, Rajendra S. Apte Jan 2024

Catalytic Isoforms Of Amp-Activated Protein Kinase Differentially Regulate Impdh Activity And Photoreceptor Neuron Function, Tae Jun Lee, Yo Sasaki, Philip A. Ruzycki, Norimitsu Ban, Joseph B. Lin, Hung-Ting Wu, Andrea Santeford, Rajendra S. Apte

2020-Current year OA Pubs

AMP-activated protein kinase (AMPK) plays a crucial role in maintaining ATP homeostasis in photoreceptor neurons. AMPK is a heterotrimeric protein consisting of α, β, and γ subunits. The independent functions of the 2 isoforms of the catalytic α subunit, PRKAA1 and PRKAA2, are uncharacterized in specialized neurons, such as photoreceptors. Here, we demonstrate in mice that rod photoreceptors lacking PRKAA2, but not PRKAA1, showed altered levels of cGMP, GTP, and ATP, suggesting isoform-specific regulation of photoreceptor metabolism. Furthermore, PRKAA2-deficient mice displayed visual functional deficits on electroretinography and photoreceptor outer segment structural abnormalities on transmission electron microscopy consistent with neuronal dysfunction, …


Barriers And Facilitators To A Task-Shifted Stroke Prevention Program For Children With Sickle Cell Anemia In A Community Hospital: A Qualitative Study, Halima Bello-Manga, Lawal Haliru, Kudirat Ahmed, Samuel Ige, Hayatu Musa, Zainab Kwaru Muhammad-Idris, Binshak Monday, Abdulrashid M Sani, Kemberlee Bonnet, David G Schlundt, Taniya Varughese, Abdulkadir M Tabari, Michael R Debaun, Ana A Baumann, Allison A King Jan 2024

Barriers And Facilitators To A Task-Shifted Stroke Prevention Program For Children With Sickle Cell Anemia In A Community Hospital: A Qualitative Study, Halima Bello-Manga, Lawal Haliru, Kudirat Ahmed, Samuel Ige, Hayatu Musa, Zainab Kwaru Muhammad-Idris, Binshak Monday, Abdulrashid M Sani, Kemberlee Bonnet, David G Schlundt, Taniya Varughese, Abdulkadir M Tabari, Michael R Debaun, Ana A Baumann, Allison A King

2020-Current year OA Pubs

BACKGROUND: Children with sickle cell anemia (SCA) are at high risk for stroke. Protocols for stroke prevention including blood transfusions, screening for abnormal non-imaging transcranial Doppler (TCD) measurements, and hydroxyurea therapy are difficult to implement in low-resource environments like Nigeria. This study aimed to examine the contextual factors around TCD screening in a community hospital in Nigeria using qualitative interviews and focus groups.

METHODS: We conducted a descriptive qualitative study in a community hospital in Kaduna, Nigeria, using focus groups and interviews. Interview guides and analysis were informed by the Consolidated Framework for Implementation Research (CFIR) framework and the Theory …


Post-Hospitalization Remote Monitoring For Patients With Heart Failure Or Chronic Obstructive Pulmonary Disease In An Accountable Care Organization, Samantha Harris, Kayla Paynter, Megan Guinn, Julie Fox, Nathan Moore, Thomas M Maddox, Patrick G Lyons Jan 2024

Post-Hospitalization Remote Monitoring For Patients With Heart Failure Or Chronic Obstructive Pulmonary Disease In An Accountable Care Organization, Samantha Harris, Kayla Paynter, Megan Guinn, Julie Fox, Nathan Moore, Thomas M Maddox, Patrick G Lyons

2020-Current year OA Pubs

BACKGROUND: Post-hospitalization remote patient monitoring (RPM) has potential to improve health outcomes for high-risk patients with chronic medical conditions. The purpose of this study is to determine the extent to which RPM for patients with congestive heart failure (CHF) and chronic obstructive pulmonary disease (COPD) is associated with reductions in post-hospitalization mortality, hospital readmission, and ED visits within an Accountable Care Organization (ACO).

METHODS: Nonrandomized prospective study of patients in an ACO offered enrollment in RPM upon hospital discharge between February 2021 and December 2021. RPM comprised of vital sign monitoring equipment (blood pressure monitor, scale, pulse oximeter), tablet device …


A Flexible, Quantitative Plasmonic-Fluor Lateral Flow Assay For The Rapid Detection Of Orthoebolavirus Zairense And Orthoebolavirus Sudanense, Abraham J Qavi, Qisheng Jiang, M Javad Aman, Hong Vu, Larry Zetlin, John M Dye, Jeffrey W Froude, Daisy W Leung, Frederick Holtsberg, Scott L Crick, Gaya K Amarasinghe Jan 2024

A Flexible, Quantitative Plasmonic-Fluor Lateral Flow Assay For The Rapid Detection Of Orthoebolavirus Zairense And Orthoebolavirus Sudanense, Abraham J Qavi, Qisheng Jiang, M Javad Aman, Hong Vu, Larry Zetlin, John M Dye, Jeffrey W Froude, Daisy W Leung, Frederick Holtsberg, Scott L Crick, Gaya K Amarasinghe

2020-Current year OA Pubs

Filoviruses comprise a family of single-stranded, negative-sense RNA viruses with a significant impact on human health. Given the risk for disease outbreaks, as highlighted by the recent outbreaks across Africa, there is an unmet need for flexible diagnostic technologies that can be deployed in resource-limited settings. Herein, we highlight the use of plasmonic-fluor lateral flow assays (PF-LFA) for the rapid, quantitative detection of an Ebolavirus-secreted glycoprotein, a marker for infection. Plasmonic fluors are a class of ultrabright reporter molecules that combine engineered nanorods with conventional fluorophores, resulting in improved analytical sensitivity. We have developed a PF-LFA for


Single-Cell Multi-Omic Analysis Of The Vestibular Schwannoma Ecosystem Uncovers A Nerve Injury-Like State, Thomas F Barrett, Bhuvic Patel, Riley D Z Mullins, Aldrin K Y Yim, Sangami Pugazenthi, Tatenda Mahlokozera, Gregory J Zipfel, Jacques A Herzog, Cameron C Wick, Nedim Durakovic, Joshua W Osbun, Matthew Shew, Craig A Buchman, Sidharth V Puram, Albert H Kim, Et Al. Jan 2024

Single-Cell Multi-Omic Analysis Of The Vestibular Schwannoma Ecosystem Uncovers A Nerve Injury-Like State, Thomas F Barrett, Bhuvic Patel, Riley D Z Mullins, Aldrin K Y Yim, Sangami Pugazenthi, Tatenda Mahlokozera, Gregory J Zipfel, Jacques A Herzog, Cameron C Wick, Nedim Durakovic, Joshua W Osbun, Matthew Shew, Craig A Buchman, Sidharth V Puram, Albert H Kim, Et Al.

2020-Current year OA Pubs

Vestibular schwannomas (VS) are benign tumors that lead to significant neurologic and otologic morbidity. How VS heterogeneity and the tumor microenvironment (TME) contribute to VS pathogenesis remains poorly understood. In this study, we perform scRNA-seq on 15 VS, with paired scATAC-seq (n = 6) and exome sequencing (n = 12). We identify diverse Schwann cell (SC), stromal, and immune populations in the VS TME and find that repair-like and MHC-II antigen-presenting SCs are associated with myeloid cell infiltrate, implicating a nerve injury-like process. Deconvolution analysis of RNA-expression data from 175 tumors reveals Injury-like tumors are associated with larger tumor size, …


Overview Of Covid-19 Infection, Treatment, And Prevention In Children, Carol M Kao Jan 2024

Overview Of Covid-19 Infection, Treatment, And Prevention In Children, Carol M Kao

2020-Current year OA Pubs

Coronavirus disease 2019 (COVID-19), caused by the novel respiratory virus-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-was declared a global pandemic by the World Health Organization on 11 March 2020. Since then, substantial gains have been made in our understanding of COVID-19 epidemiology, disease presentation, and management. While children tend to have less severe disease courses compared to adults, children can still develop severe COVID-19 infections, particularly in those with underlying medical conditions such as obesity, chronic lung disease, or prematurity. In addition, children are at risk of severe complications of COVID-19 infection, such as multisystem inflammatory syndrome in children (MIS-C) …


Inhibition Of Autocrine Hgf Maturation Overcomes Cetuximab Resistance In Colorectal Cancer, Vivian Truong Jones, Vishnu C Damalanka, James W Janetka, Et Al. Jan 2024

Inhibition Of Autocrine Hgf Maturation Overcomes Cetuximab Resistance In Colorectal Cancer, Vivian Truong Jones, Vishnu C Damalanka, James W Janetka, Et Al.

2020-Current year OA Pubs

Although amplifications and mutations in receptor tyrosine kinases (RTKs) act as bona fide oncogenes, in most cancers, RTKs maintain moderate expression and remain wild-type. Consequently, cognate ligands control many facets of tumorigenesis, including resistance to anti-RTK therapies. Herein, we show that the ligands for the RTKs MET and RON, HGF and HGFL, respectively, are synthesized as inactive precursors that are activated by cellular proteases. Our newly generated HGF/HGFL protease inhibitors could overcome both de novo and acquired cetuximab resistance in colorectal cancer (CRC). Conversely, HGF overexpression was necessary and sufficient to induce cetuximab resistance and loss of polarity. Moreover, HGF-induced …


Neuroactive Steroid Effects On Autophagy In A Human Embryonic Kidney 293 (Hek) Cell Model, Sofia V Salvatore, Ma Xenia G Ilagan, Hongjin Shu, Peter M Lambert, Ann Benz, Mingxing Qian, Douglas F Covey, Charles F Zorumski, Steven Mennerick Jan 2024

Neuroactive Steroid Effects On Autophagy In A Human Embryonic Kidney 293 (Hek) Cell Model, Sofia V Salvatore, Ma Xenia G Ilagan, Hongjin Shu, Peter M Lambert, Ann Benz, Mingxing Qian, Douglas F Covey, Charles F Zorumski, Steven Mennerick

2020-Current year OA Pubs

Neuropsychiatric and neurodegenerative disorders are correlated with cellular stress. Macroautophagy (autophagy) may represent an important protective pathway to maintain cellular homeostasis and functionality, as it targets cytoplasmic components to lysosomes for degradation and recycling. Given recent evidence that some novel psychiatric treatments, such as the neuroactive steroid (NAS) allopregnanolone (AlloP, brexanolone), may induce autophagy, we stably transfected human embryonic kidney 293 (HEK) cells with a ratiometric fluorescent probe to assay NAS effects on autophagy. We hypothesized that NAS may modulate autophagy in part by the ability of uncharged NAS to readily permeate membranes. Microscopy revealed a weak effect of AlloP …


Smaller Total And Subregional Cerebellar Volumes In Posttraumatic Stress Disorder: A Mega-Analysis By The Enigma-Pgc Ptsd Workgroup, Ashley A. Huggins, Evan M. Gordon, Et Al. Jan 2024

Smaller Total And Subregional Cerebellar Volumes In Posttraumatic Stress Disorder: A Mega-Analysis By The Enigma-Pgc Ptsd Workgroup, Ashley A. Huggins, Evan M. Gordon, Et Al.

2020-Current year OA Pubs

No abstract provided.


The Chromatin Landscape Of Healthy And Injured Cell Types In The Human Kidney, Debora L Gisch, Jeannine Basta, Reetika Ghag, Charles Lu, Lisa Stout, Bo Zhang, Amanda Knoten, Shamim Mollah, Sanjay Jain, Michael Rauchman, Et Al. Jan 2024

The Chromatin Landscape Of Healthy And Injured Cell Types In The Human Kidney, Debora L Gisch, Jeannine Basta, Reetika Ghag, Charles Lu, Lisa Stout, Bo Zhang, Amanda Knoten, Shamim Mollah, Sanjay Jain, Michael Rauchman, Et Al.

2020-Current year OA Pubs

There is a need to define regions of gene activation or repression that control human kidney cells in states of health, injury, and repair to understand the molecular pathogenesis of kidney disease and design therapeutic strategies. Comprehensive integration of gene expression with epigenetic features that define regulatory elements remains a significant challenge. We measure dual single nucleus RNA expression and chromatin accessibility, DNA methylation, and H3K27ac, H3K4me1, H3K4me3, and H3K27me3 histone modifications to decipher the chromatin landscape and gene regulation of the kidney in reference and adaptive injury states. We establish a spatially-anchored epigenomic atlas to define the kidney's active, …


Age-Related Differences In Motor Skill Transfer With Brief Memory Reactivation, Kylie B Tomlin, Brian P Johnson, Kelly P Westlake Jan 2024

Age-Related Differences In Motor Skill Transfer With Brief Memory Reactivation, Kylie B Tomlin, Brian P Johnson, Kelly P Westlake

2020-Current year OA Pubs

Motor memories can be strengthened through online practice and offline consolidation. Offline consolidation involves the stabilization of memory traces in post-practice periods. Following initial consolidation of a motor memory, subsequent practice of the motor skill can lead to reactivation and reconsolidation of the memory trace. The length of motor memory reactivation may influence motor learning outcomes; for example, brief, as opposed to long, practice of a previously learned motor skill appears to optimize intermanual transfer in healthy young adults. However, the influence of aging on reactivation-based motor learning has been scarcely explored. Here, the effects of brief and long motor …


Clinical Outcomes Of Older And Younger Patients Treated With Loncastuximab Tesirine In The Lotis-2 Clinical Trial, Mehdi Hamadani, Brad Kahl, Et Al. Jan 2024

Clinical Outcomes Of Older And Younger Patients Treated With Loncastuximab Tesirine In The Lotis-2 Clinical Trial, Mehdi Hamadani, Brad Kahl, Et Al.

2020-Current year OA Pubs

No abstract provided.


Implementing Integrated Hypertension And Diabetes Management Using The World Health Organization's Hearts Model: Protocol For A Pilot Study In The Guatemalan National Primary Care System, Irmgardt Alicia Wellmann, Luis Fernando Ayala, José Javier Rodríguez, Timothy C Guetterman, Vilma Irazola, Eduardo Palacios, Mark D Huffman, Peter Rohloff, Michele Heisler, Manuel Ramírez-Zea, David Flood Jan 2024

Implementing Integrated Hypertension And Diabetes Management Using The World Health Organization's Hearts Model: Protocol For A Pilot Study In The Guatemalan National Primary Care System, Irmgardt Alicia Wellmann, Luis Fernando Ayala, José Javier Rodríguez, Timothy C Guetterman, Vilma Irazola, Eduardo Palacios, Mark D Huffman, Peter Rohloff, Michele Heisler, Manuel Ramírez-Zea, David Flood

2020-Current year OA Pubs

BACKGROUND: The HEARTS technical package was developed by the World Health Organization to address the implementation gap in cardiovascular disease prevention in low- and middle-income countries. Guatemala is a middle-income country that is currently implementing HEARTS. National authorities in Guatemala are interested in exploring how hypertension and diabetes management can be integrated in HEARTS implementation. The objective of this study is to conduct a feasibility and acceptability pilot trial of integrated hypertension and diabetes management based on HEARTS in the publicly funded primary care system in Guatemala.

METHODS: A single-arm pilot trial for 6 months will be carried out in …


Multiple Pathways For Glucose Phosphate Transport And Utilization Support Growth Of Cryptosporidium Parvum, Rui Xu, Wandy L Beatty, Valentin Greigert, William H Witola, L David Sibley Jan 2024

Multiple Pathways For Glucose Phosphate Transport And Utilization Support Growth Of Cryptosporidium Parvum, Rui Xu, Wandy L Beatty, Valentin Greigert, William H Witola, L David Sibley

2020-Current year OA Pubs

Cryptosporidium parvum is an obligate intracellular parasite with a highly reduced mitochondrion that lacks the tricarboxylic acid cycle and the ability to generate ATP, making the parasite reliant on glycolysis. Genetic ablation experiments demonstrated that neither of the two putative glucose transporters CpGT1 and CpGT2 were essential for growth. Surprisingly, hexokinase was also dispensable for parasite growth while the downstream enzyme aldolase was required, suggesting the parasite has an alternative way of obtaining phosphorylated hexose. Complementation studies in E. coli support a role for direct transport of glucose-6-phosphate from the host cell by the parasite transporters CpGT1 and CpGT2, thus …


Postnatal Meningeal Csf Transport Is Primarily Mediated By The Arachnoid And Pia Maters And Is Not Altered After Intraventricular Hemorrhage-Posthemorrhagic Hydrocephalus, Shelei Pan, Joshua P Koleske, Gretchen M Koller, Grace L Halupnik, Abdul-Haq O Alli, Shriya Koneru, Dakota Defreitas, Sruthi Ramagiri, Jennifer M Strahle Jan 2024

Postnatal Meningeal Csf Transport Is Primarily Mediated By The Arachnoid And Pia Maters And Is Not Altered After Intraventricular Hemorrhage-Posthemorrhagic Hydrocephalus, Shelei Pan, Joshua P Koleske, Gretchen M Koller, Grace L Halupnik, Abdul-Haq O Alli, Shriya Koneru, Dakota Defreitas, Sruthi Ramagiri, Jennifer M Strahle

2020-Current year OA Pubs

BACKGROUND: CSF has long been accepted to circulate throughout the subarachnoid space, which lies between the arachnoid and pia maters of the meninges. How the CSF interacts with the cellular components of the developing postnatal meninges including the dura, arachnoid, and pia of both the meninges at the surface of the brain and the intracranial meninges, prior to its eventual efflux from the cranium and spine, is less understood. Here, we characterize small and large CSF solute distribution patterns along the intracranial and surface meninges in neonatal rodents and compare our findings to meningeal CSF solute distribution in a rodent …


Associations Between Coordination And Wearable Sensor Variables Vary By Recording Context But Not Assessment Type, Jeffrey D Konrad, Natasha Marrus, Keith R Lohse, Kayla M Thuet, Catherine E Lang Jan 2024

Associations Between Coordination And Wearable Sensor Variables Vary By Recording Context But Not Assessment Type, Jeffrey D Konrad, Natasha Marrus, Keith R Lohse, Kayla M Thuet, Catherine E Lang

2020-Current year OA Pubs

Motor coordination is an important driver of development and improved coordination assessments could facilitate better screening, diagnosis, and intervention for children at risk of developmental disorders. Wearable sensors could provide data that enhance the characterization of coordination and the clinical utility of that data may vary depending on how sensor variables from different recording contexts relate to coordination. We used wearable sensors at the wrists to capture upper-limb movement in 85 children aged 6-12. Sensor variables were extracted from two recording contexts.


Gene-Sgan: Discovering Disease Subtypes With Imaging And Genetic Signatures Via Multi-View Weakly-Supervised Deep Clustering, Zhijian Yang, John C Morris, Pamela Lamontagne, Daniel S Marcus, Tammie L S Benzinger, Et Al. Jan 2024

Gene-Sgan: Discovering Disease Subtypes With Imaging And Genetic Signatures Via Multi-View Weakly-Supervised Deep Clustering, Zhijian Yang, John C Morris, Pamela Lamontagne, Daniel S Marcus, Tammie L S Benzinger, Et Al.

2020-Current year OA Pubs

Disease heterogeneity has been a critical challenge for precision diagnosis and treatment, especially in neurologic and neuropsychiatric diseases. Many diseases can display multiple distinct brain phenotypes across individuals, potentially reflecting disease subtypes that can be captured using MRI and machine learning methods. However, biological interpretability and treatment relevance are limited if the derived subtypes are not associated with genetic drivers or susceptibility factors. Herein, we describe Gene-SGAN - a multi-view, weakly-supervised deep clustering method - which dissects disease heterogeneity by jointly considering phenotypic and genetic data, thereby conferring genetic correlations to the disease subtypes and associated endophenotypic signatures. We first …


Dgidb 5.0: Rebuilding The Drug-Gene Interaction Database For Precision Medicine And Drug Discovery Platforms, Matthew Cannon, James Stevenson, Kathryn Stahl, Rohit Basu, Adam Coffman, Susanna Kiwala, Joshua F Mcmichael, Kori Kuzma, Dorian Morrissey, Kelsy Cotto, Elaine R Mardis, Obi L Griffith, Malachi Griffith, Alex H Wagner Jan 2024

Dgidb 5.0: Rebuilding The Drug-Gene Interaction Database For Precision Medicine And Drug Discovery Platforms, Matthew Cannon, James Stevenson, Kathryn Stahl, Rohit Basu, Adam Coffman, Susanna Kiwala, Joshua F Mcmichael, Kori Kuzma, Dorian Morrissey, Kelsy Cotto, Elaine R Mardis, Obi L Griffith, Malachi Griffith, Alex H Wagner

2020-Current year OA Pubs

The Drug-Gene Interaction Database (DGIdb, https://dgidb.org) is a publicly accessible resource that aggregates genes or gene products, drugs and drug-gene interaction records to drive hypothesis generation and discovery for clinicians and researchers. DGIdb 5.0 is the latest release and includes substantial architectural and functional updates to support integration into clinical and drug discovery pipelines. The DGIdb service architecture has been split into separate client and server applications, enabling consistent data access for users of both the application programming interface (API) and web interface. The new interface was developed in ReactJS, and includes dynamic visualizations and consistency in the display of …