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Full-Text Articles in Medicine and Health Sciences
Keeping The Lights On: The Impact Of The Covid-19 Pandemic On Elective Total Joint Arthroplasty Utilization In The United States, Matthew W. Cole, Lacee K. Collins, Garrett H. Williams, Olivia C. Lee, William F. Sherman
Keeping The Lights On: The Impact Of The Covid-19 Pandemic On Elective Total Joint Arthroplasty Utilization In The United States, Matthew W. Cole, Lacee K. Collins, Garrett H. Williams, Olivia C. Lee, William F. Sherman
School of Medicine Faculty Publications
Background: It was estimated that up to 30,000 primary total hip arthroplasty (THA) and total knee arthroplasty (TKA) procedures would be cancelled each week during the moratorium on elective surgeries in the United States. The purpose of this study was to analyze the impact of the COVID-19 pandemic on elective total joint arthroplasty utilization in the United States. Methods: A retrospective study was conducted using the PearlDiver database. Patients who underwent primary elective THAs and TKAs were identified and filtered by state and month from January through September of both 2019 and 2020. The volume of these procedures immediately following …
Ulnar Nerve Palsy As Covid-19 Sequelae In 3 Patients, Cristina Terhoeve, Ryan Bliss, Rasheed Ahmad
Ulnar Nerve Palsy As Covid-19 Sequelae In 3 Patients, Cristina Terhoeve, Ryan Bliss, Rasheed Ahmad
School of Medicine Faculty Publications
The pathophysiology and treatment of COVID-19 have been at the forefront of medical research this past year. While great strides have been made in our knowledge of the disease, there is still much that is unknown. More than one-third of patients with COVID-19 present with symptoms involving the nervous system. The reason for this is unclear, although several theories have been postulated. In this case study, we present 3 patients with severe ulnar nerve dysfunction following treatment for COVID-19 in the intensive care unit. We discuss reasons why this may have occurred, the etiology of which is likely multifactorial. We …
Landscape Of Molecular Crosstalk Perturbation Between Lung Cancer And Covid-19, Aditi Kuchi, Jiande Wu, Jyotsna Fuloria, Chindo Hicks
Landscape Of Molecular Crosstalk Perturbation Between Lung Cancer And Covid-19, Aditi Kuchi, Jiande Wu, Jyotsna Fuloria, Chindo Hicks
School of Medicine Faculty Publications
Background: Lung cancer patients have the worst outcomes when affected by coronavirus disease 2019 (COVID-19). The molecular mechanisms underlying the association between lung cancer and COVID-19 remain unknown. The objective of this investigation was to determine whether there is crosstalk in molecular perturbation between COVID-19 and lung cancer, and to identify a molecular signature, molecular networks and signaling pathways shared by the two diseases. Methods: We analyzed publicly available gene expression data from 52 severely affected COVID-19 human lung samples, 594 lung tumor samples and 54 normal disease-free lung samples. We performed network and pathways analysis to identify molecular networks …
Acute Macular Neuroretinopathy Associated With Covid-19 Infection, James A. David, George D. Fivgas
Acute Macular Neuroretinopathy Associated With Covid-19 Infection, James A. David, George D. Fivgas
School of Medicine Faculty Publications
Purpose: To report a case of bilateral acute macular neuroretinopathy (AMN) associated with a COVID-19 infection. Observations: A 22-year-old female was referred for evaluation of bilateral scotomas concurrent with a mildly symptomatic COVID-19 infection. Exam showed normal visual acuity, bilateral reddish-brown petaloid retinal lesions which were hyporeflective on near infrared (NIR) optical coherence tomography (OCT), and had associated hypoperfusion of the deep vascular plexus on OCT-angiography (OCT-A) consistent with bilateral AMN. At follow-up, scotomas and retinal findings on near infrared imaging and spectral-domain optical coherence tomography had only slightly improved. Conclusions: COVID-19 has been documented to be the etiology of …
Severe Covid-19 Is Characterized By An Impaired Type I Interferon Response And Elevated Levels Of Arginase Producing Granulocytic Myeloid Derived Suppressor Cells, Matthew J. Dean, Juan B. Ochoa, Maria Dulfary Sanchez-Pino, Jovanny Zabaleta, Jone Garai, Luis Del Valle, Dorota Wyczechowska, Lyndsey Buckner Baiamonte, Phaethon Philbrook, Rinku Majumder, Richard S. Vander Heide, Logan Dunkenberger, Ramesh Puttalingaiah Thylur, Bobby Nossaman, W. Mark Roberts, Andrew G. Chapple, Jiande Wu, Chindo Hicks, Jack Collins, Brian Luke
Severe Covid-19 Is Characterized By An Impaired Type I Interferon Response And Elevated Levels Of Arginase Producing Granulocytic Myeloid Derived Suppressor Cells, Matthew J. Dean, Juan B. Ochoa, Maria Dulfary Sanchez-Pino, Jovanny Zabaleta, Jone Garai, Luis Del Valle, Dorota Wyczechowska, Lyndsey Buckner Baiamonte, Phaethon Philbrook, Rinku Majumder, Richard S. Vander Heide, Logan Dunkenberger, Ramesh Puttalingaiah Thylur, Bobby Nossaman, W. Mark Roberts, Andrew G. Chapple, Jiande Wu, Chindo Hicks, Jack Collins, Brian Luke
School of Medicine Faculty Publications
COVID-19 ranges from asymptomatic in 35% of cases to severe in 20% of patients. Differences in the type and degree of inflammation appear to determine the severity of the disease. Recent reports show an increase in circulating monocytic-myeloid-derived suppressor cells (M-MDSC) in severe COVID 19 that deplete arginine but are not associated with respiratory complications. Our data shows that differences in the type, function and transcriptome of granulocytic-MDSC (G-MDSC) may in part explain the severity COVID-19, in particular the association with pulmonary complications. Large infiltrates by Arginase 1+ G-MDSC (Arg+G-MDSC), expressing NOX-1 and NOX-2 (important for production of reactive oxygen …