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Full-Text Articles in Medicine and Health Sciences
The Temperature-Dependent Conformational Ensemble Of Sars-Cov-2 Main Protease (Mpro), Ali Ebrahim, Blake T. Riley, Desigan Kumaran, Babak Andi, Martin R. Fuchs, Sean Mcsweeney, Daniel A. Keedy
The Temperature-Dependent Conformational Ensemble Of Sars-Cov-2 Main Protease (Mpro), Ali Ebrahim, Blake T. Riley, Desigan Kumaran, Babak Andi, Martin R. Fuchs, Sean Mcsweeney, Daniel A. Keedy
Publications and Research
The COVID-19 pandemic, instigated by the SARS-CoV-2 coronavirus, continues to plague the globe. The SARS-CoV-2 main protease, or Mpro, is a promising target for development of novel antiviral therapeutics. Previous X-ray crystal structures of Mpro were obtained at cryogenic temperature or room temperature only. Here we report a series of high-resolution crystal structures of unliganded Mpro across multiple temperatures from cryogenic to physiological, and another at high humidity. We interrogate these datasets with parsimonious multiconformer models, multi-copy ensemble models, and isomorphous difference density maps. Our analysis reveals a temperature-dependent conformational landscape for Mpro, including …
Griffithsin And Carrageenan Combination Results In Antiviral Synergy Against Sars-Cov-1 And 2 In A Pseudoviral Model, Sahar Alsaidi, Nadjet Cornejal, Oneil Mahoney, Claudia Melo, Neeharika Verma, Thierry Bonnaire, Theresa Chang, Barry R. O'Keefe, James Sailer, Thomas M. Zydowsky, Natalia Teleshova, José A. Fernández Romero
Griffithsin And Carrageenan Combination Results In Antiviral Synergy Against Sars-Cov-1 And 2 In A Pseudoviral Model, Sahar Alsaidi, Nadjet Cornejal, Oneil Mahoney, Claudia Melo, Neeharika Verma, Thierry Bonnaire, Theresa Chang, Barry R. O'Keefe, James Sailer, Thomas M. Zydowsky, Natalia Teleshova, José A. Fernández Romero
Publications and Research
Over 182 million confirmed cases of COVID-19 and more than 4 million deaths have been reported to date around the world. It is essential to identify broad-spectrum antiviral agents that may prevent or treat infections by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) but also by other coronaviruses that may jump the species barrier in the future. We evaluated the antiviral selectivity of griffithsin and sulfated and non-sulfated polysaccharides against SARS-CoV-1 and SARS-CoV-2 using a cytotoxicity assay and a cell-based pseudoviral model. The half-maximal cytotoxic concentration (CC50) and half-maximal effective concentration (EC50) were determined for each compound, using a dose-response-inhibition …
Symptoms And Testing For Covid-19, Daniel Gurvich, Laura E. Fasulo, Micah Goltsman
Symptoms And Testing For Covid-19, Daniel Gurvich, Laura E. Fasulo, Micah Goltsman
Publications and Research
No abstract provided.
Oral Manifestations Of Covid-19, Ibeth Erazo
Oral Manifestations Of Covid-19, Ibeth Erazo
Publications and Research
Some oral manifestations have been observed in patients with coronavirus disease 2019 (COVID-19). However, there is still a question about whether these lesions are due to coronavirus infection or secondary manifestations resulting from patient's stress, medications, and/or other related immunosuppressive factors and systemic conditions or by the actions of opportunistic infections brought by other viruses, bacteria, and fungi in the oral cavity. There is growing evidence that angiotensin-converting enzyme 2 (ACE2), the main host cell receptor of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is highly expressed on the cells of the oral mucosal epithelia and of the salivary glands, …
Association Of Right Ventricular Dysfunction And Pulmonary Hypertension With Adverse 30-Day Outcomes In Covid-19 Patients, Karen Wats, Daniel Rodriguez, Kurt W. Prins, Adnan Sadiq, Joshua Fogel, Mark Goldberger, Manfred Moskovits, Mahsa Pourabdollah Tootkaboni, Jacob Shani, Jessen Jacob
Association Of Right Ventricular Dysfunction And Pulmonary Hypertension With Adverse 30-Day Outcomes In Covid-19 Patients, Karen Wats, Daniel Rodriguez, Kurt W. Prins, Adnan Sadiq, Joshua Fogel, Mark Goldberger, Manfred Moskovits, Mahsa Pourabdollah Tootkaboni, Jacob Shani, Jessen Jacob
Publications and Research
Background: Cardiac manifestations in COVID-19 are multifactorial and are associated with increased mortality. The clinical utility and prognostic value of echocardiography in COVID-19 inpatients is not clearly defined. We aim to identify echocardiographic parameters that are associated with 30-day clinical outcomes secondary to COVID-19 hospitalization.
Methods: This retrospective cohort study was conducted in a large tertiary hospital in New York City during the COVID-19 pandemic. It included 214 adult inpatients with a laboratory-confirmed diagnosis of COVID-19 by reverse transcriptase polymerase chain reaction assay (RT-PCR) for SARS-CoV-2 on nasopharyngeal swab and had a transthoracic echocardiogram performed during the index hospitalization. …
Outcomes In Patients With Covid-19 Disease And High Oxygen Requirements, Geurys Rojas-Marte, Arsalan Talib Hashmi, Mazin Khalid, Nnamdi Chukwuka, Joshua Fogel, Alejandro Munoz-Martinez, Samantha Ehrlich, Maham Akbar Waheed, Dikshya Sharma, Shaurya Sharma, Awais Aslam, Sabah Siddiqui, Chirag Agarwal, Yuri Malyshev, Carlos Henriquez-Felipe, Jacob Shani
Outcomes In Patients With Covid-19 Disease And High Oxygen Requirements, Geurys Rojas-Marte, Arsalan Talib Hashmi, Mazin Khalid, Nnamdi Chukwuka, Joshua Fogel, Alejandro Munoz-Martinez, Samantha Ehrlich, Maham Akbar Waheed, Dikshya Sharma, Shaurya Sharma, Awais Aslam, Sabah Siddiqui, Chirag Agarwal, Yuri Malyshev, Carlos Henriquez-Felipe, Jacob Shani
Publications and Research
Background: Approximately 19% of people infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) progress to severe or critical stages of the coronavirus disease 2019 (COVID-19) with a mortality rate exceeding 50%. We aimed to examine the char- acteristics, mortality rates, intubation rate, and length of stay (LOS) of patients hospitalized with COVID-19 disease with high oxygen re- quirements (critically ill).
Methods: We conducted a retrospective analysis in a single center in Brooklyn, New York. Adult hospitalized patients with confirmed COVID-19 disease and high oxygen requirements were included. We performed multivariate logistic regression analyses for statistically significant variables to …