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Infectious Disease: SARS
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Total 79986 results found since Jan 2013.
Integrated Immunopeptidomics and Proteomics Study of SARS-CoV-2 Infected Calu-3 Cells Reveals Dynamic Changes in Allele-specific HLA Abundance and Antigen Presentation
We present an integrated immunopeptidomics and proteomics study of SARS-CoV-2 infection to comprehensively decipher the changes in host cells in response to viral infection. Immunopeptidomics analysis identified viral antigens presented by host cells through both Class I and Class II MHC system for recognition by the adaptive immune system. The host proteome changes were characterized by quantitative proteomics and glycoproteomics and from these data, the activation of TLR3-interferon pathway was identified. Glycosylation analysis of HLA proteins from the elution and flow-through of immunoprecipitation revealed that SARS-C...
Source: Molecular and Cellular Proteomics : MCP - September 14, 2023 Category: Molecular Biology Authors: Rui Chen Kelly M Fulton Anh Tran Diana Duque Kevin Kovalchik Etienne Caron Susan M Twine Jianjun Li Source Type: research
New SARS-CoV-2 Omicron Variant with Spike Protein Mutation Y451H, Kilifi, Kenya, March-May 2023
We report a newly emerged SARS-CoV-2 Omicron subvariant FY.4 that has mutations Y451H in spike and P42L in open reading frame 3a proteins. FY.4 emergence coincided with increased SARS-CoV-2 cases in coastal Kenya during April-May 2023. Continued SARS-CoV-2 genomic surveillance is needed to identify new lineages to inform COVID-19 outbreak prevention.PMID:37708843 | DOI:10.3201/eid2911.230894
Source: Emerging Infectious Diseases - September 14, 2023 Category: Infectious Diseases Authors: Mike J Mwanga Arnold W Lambisia John Mwita Morobe Nickson Murunga Edidah Moraa Leonard Ndwiga Robinson Cheruiyot Jennifer Musyoki Martin Mutunga Laura M Guzman-Rincon Charles Sande Joseph Mwangangi Philip Bejon Lynette Isabella Ochola-Oyier D James Nokes Source Type: research
Wastewater Surveillance Data as a Complement to Emergency Department Visit Data for Tracking Incidence of Influenza A and Respiratory Syncytial Virus - Wisconsin, August 2022-March 2023
MMWR Morb Mortal Wkly Rep. 2023 Sep 15;72(37):1005-1009. doi: 10.15585/mmwr.mm7237a2.ABSTRACTWastewater surveillance has been used to assist public health authorities in tracking local transmission of SARS-CoV-2. The usefulness of wastewater surveillance to track community spread of other respiratory pathogens, including influenza virus and respiratory syncytial virus (RSV), is less clear. During the 2022-23 respiratory diseases season, concentrations of influenza A virus and RSV in wastewater samples in three major Wisconsin cities were compared with emergency department (ED) visits associated with these pathogens. In all...
Source: MMWR Morb Mortal Wkl... - September 14, 2023 Category: Epidemiology Authors: Peter M DeJonge Carly Adams Ian Pray Melissa K Schussman Rebecca B Fahney Martin Shafer Dagmara S Antkiewicz Ad élaïde Roguet Source Type: research
Idiopathic pulmonary fibrosis (IPF): disease pathophysiology, targets, and potential therapeutic interventions
In this study, we focus on the IPF and COVID-19 pathogenesis and the potential role of Apigenin in addressing disease progression.PMID:37707699 | DOI:10.1007/s11010-023-04845-6
Source: Molecular and Cellular Biochemistry - September 14, 2023 Category: Biochemistry Authors: Pritha Saha Priti Talwar Source Type: research
Light chain of a public SARS-CoV-2 class-3 antibody modulates neutralization against Omicron
Cell Rep. 2023 Sep 13;42(9):113150. doi: 10.1016/j.celrep.2023.113150. Online ahead of print.ABSTRACTThe pairing of antibody genes IGHV2-5/IGLV2-14 is established as a public immune response that potently cross-neutralizes SARS-CoV-2 variants, including Omicron, by targeting class-3/RBD-5 epitopes in the receptor binding domain (RBD). LY-CoV1404 (bebtelovimab) exemplifies this, displaying exceptional potency against Omicron sub-variants up to BA.5. Here, we report a human antibody, 002-S21B10, encoded by the public clonotype IGHV2-5/IGLV2-14. While 002-S21B10 neutralized key SARS-CoV-2 variants, it did not neutralize Omicr...
Source: Cell Research - September 14, 2023 Category: Cytology Authors: Anamika Patel Sanjeev Kumar Lilin Lai Meredith Keen Rajesh Valanparambil Chennareddy Chakravarthy Zane Laughlin Filipp Frank Narayanaiah Cheedarla Hans P Verkerke Andrew S Neish John D Roback Carl W Davis Jens Wrammert Amit Sharma Rafi Ahmed Mehul S Sutha Source Type: research
Fortifying immunity: PLSCR1 picks battle against SARS-CoV-2
Cell Host Microbe. 2023 Sep 13;31(9):1417-1419. doi: 10.1016/j.chom.2023.08.014.ABSTRACTInterferons (IFNs) and interferon-stimulated genes (ISGs) are the major players in the host innate immunity against viral infection. In a recent Nature paper, Xu et al. identified phospholipid scramblase 1 (PLSCR1) as a novel ISG that restricts severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection by blocking virus-cell fusion.PMID:37708846 | DOI:10.1016/j.chom.2023.08.014
Source: Cell Host and Microbe - September 14, 2023 Category: Microbiology Authors: Minghua Li Source Type: research
Overreactive macrophages in SARS-CoV-2 infection: The effects of ACEI
Int Immunopharmacol. 2023 Sep 12;124(Pt A):110858. doi: 10.1016/j.intimp.2023.110858. Online ahead of print.ABSTRACTAmong various factors influencing the course of SARS-CoV-2 infection in humans, macrophage overactivation is considered the main cause of the cytokine storm that leads to severe complications of COVID-19. Moreover, the increased expression of angiotensin converting enzyme 2 (ACE2), an obligatory entry receptor of the coronavirus, caused by treatment with ACE inhibitors (ACEI) lowered overall confidence in the safety of these drugs. However, analysis of the course of coronavirus infection in patients treated w...
Source: International Immunopharmacology - September 14, 2023 Category: Allergy & Immunology Authors: Dominik Felkle Katarzyna Zi ęba Konrad Kaleta Julia Czaja Amanda Zyzdorf Wiktoria Soboci ńska Mateusz Jarczy ński Krzysztof Bryniarski Katarzyna Nazimek Source Type: research
Bibliometric analysis of the worldwide scientific production on COVID-19 infection and cerebrovascular disease
CONCLUSION: It was observed that the United States was the country with the highest scientific production on COVID-19 and cerebrovascular disease in the year 2020 in the different health areas; however, more research is still needed worldwide for a better analysis of the bibliometric indicators on the subject.PMID:37706386 | DOI:10.4103/aca.aca_70_22
Source: Annals of Cardiac Anaesthesia - September 14, 2023 Category: Anesthesiology Authors: Camila Palomino-Leyva Jhonny Rivera-Recuenco Alicia Fernandez-Giusti John Barja-Ore Yesenia Retamozo-Siancas Frank Mayta-Tovalino Source Type: research
COVID-19 transmission driven by age-group mathematical model in Shijiazhuang City of China
CONCLUSIONS: Shijiazhuang epidemic was the first COVID-19 outbreak in the rural areas in Hebei Province of Northern China. The targeted interventions adopted in early 2021 were effective to halt the transmission due to the implementation of a strict and village-wide closure. However we found that age group profile and NPIs played critical rules to successfully contain Shijiazhuang epidemic, which should be considered by public health policies in rural areas of mainland China during the dynamic zero-COVID policy.PMID:37706095 | PMC:PMC10495604 | DOI:10.1016/j.idm.2023.08.004
Source: Rural Remote Health - September 14, 2023 Category: Rural Health Authors: Fengying Wei Ruiyang Zhou Zhen Jin Senzhong Huang Zhihang Peng Jinjie Wang Ximing Xu Xinyan Zhang Jun Xu Yao Bai Xiaoli Wang Bulai Lu Zhaojun Wang Jianguo Xu Source Type: research
Effects of the glycosylation of the receptor binding domain (RBD dimer)-based Covid-19 vaccine (ZF2001) on its humoral immunogenicity and immunoreactivity
Int J Biol Macromol. 2023 Sep 12:126874. doi: 10.1016/j.ijbiomac.2023.126874. Online ahead of print.ABSTRACTThe SARS-CoV-2 spike protein receptor-binding domain (RBD), which is a key target for the development of SARS-CoV-2 neutralizing antibodies and vaccines, mediates the binding of the host receptor angiotensin-converting enzyme 2 (ACE2). However, the high heterogeneity of RBD glycoforms may lead to an incomplete neutralization effect and impact the immunogenicity of RBD-based vaccines (Ye et al., 2021). Here, our data suggested that the glycosylation significantly affected the humoral immunogenicity and immunoreactivit...
Source: International Journal of Biological Macromolecules - September 14, 2023 Category: Biochemistry Authors: Xueqing Wang Lulu Shi Yirong Wang Jia Chen Zelan Yang Chenglong Liu Xiaomei Liu Yang Li Cang Zhang Anhui Sun Huan Yan Hui Sun Source Type: research
Bibliometric analysis of the worldwide scientific production on COVID-19 infection and cerebrovascular disease
CONCLUSION: It was observed that the United States was the country with the highest scientific production on COVID-19 and cerebrovascular disease in the year 2020 in the different health areas; however, more research is still needed worldwide for a better analysis of the bibliometric indicators on the subject.PMID:37706386 | PMC:PMC10284493 | DOI:10.4103/aca.aca_70_22
Source: Annals of Cardiac Anaesthesia - September 14, 2023 Category: Anesthesiology Authors: Camila Palomino-Leyva Jhonny Rivera-Recuenco Alicia Fernandez-Giusti John Barja-Ore Yesenia Retamozo-Siancas Frank Mayta-Tovalino Source Type: research
Wastewater Surveillance Data as a Complement to Emergency Department Visit Data for Tracking Incidence of Influenza A and Respiratory Syncytial Virus - Wisconsin, August 2022-March 2023
MMWR Morb Mortal Wkly Rep. 2023 Sep 15;72(37):1005-1009. doi: 10.15585/mmwr.mm7237a2.ABSTRACTWastewater surveillance has been used to assist public health authorities in tracking local transmission of SARS-CoV-2. The usefulness of wastewater surveillance to track community spread of other respiratory pathogens, including influenza virus and respiratory syncytial virus (RSV), is less clear. During the 2022-23 respiratory diseases season, concentrations of influenza A virus and RSV in wastewater samples in three major Wisconsin cities were compared with emergency department (ED) visits associated with these pathogens. In all...
Source: MMWR Morb Mortal Wkl... - September 14, 2023 Category: Epidemiology Authors: Peter M DeJonge Carly Adams Ian Pray Melissa K Schussman Rebecca B Fahney Martin Shafer Dagmara S Antkiewicz Ad élaïde Roguet Source Type: research
Nucleic Acid Detection through RNA-Guided Protease Activity in Type III-E CRISPR-Cas Systems
Chembiochem. 2023 Sep 14:e202300401. doi: 10.1002/cbic.202300401. Online ahead of print.ABSTRACTRNA-guided protease activity was recently discovered in the type III-E CRISPR-Cas systems (Craspase), providing a novel platform for engineering a protein probe instead of the commonly used nucleic acid probe in the nucleic acid detection assays. Here, by adapting a fluorescence readout technique using the affinity- and fluorescent protein dual-tagged Csx30 protein substrate, we established an assay monitoring Csx30 cleavage by target ssRNA-activated Craspase. Four Craspase-based nucleic acid detection systems for genes from sev...
Source: Chembiochem - September 14, 2023 Category: Biochemistry Authors: Qiuqiu He Xinlong Lei Yuanjun Liu Xiaoshen Wang Nan Ji Hang Yin Huiping Wang Heng Zhang Guimei Yu Source Type: research
One-step selective layer assemble: A versatile approach for the development of a SARS-CoV-2 electrochemical immunosensor
Anal Chim Acta. 2023 Oct 16;1278:341726. doi: 10.1016/j.aca.2023.341726. Epub 2023 Aug 16.ABSTRACTThe appearance of new viruses and diseases has made the development of rapid and reliable diagnostic tests crucial. In light of it, we proposed a new method for assembling an electrochemical immunosensor, based on a one-step approach for selective layer formation. For this purpose, a mixture containing the immobilizing agent (polyxydroxybutyrate, PHB) and the recognition element (antibodies against SARS-CoV-2 nucleocapsid protein) was prepared and used to modify a screen-printed carbon electrode with electrodeposited graphene ...
Source: Analytica Chimica Acta - September 14, 2023 Category: Chemistry Authors: Gustavo Martins Helena R Galeski Gabrielle A Andrade Marcia G P Valenga Maria K Ramos Aldo J G Zarbin Bruno C Janegitz Marcelo M üller-Santos Emanuel M de Souza Luiz Humberto Marcolino-Junior M árcio F Bergamini Source Type: research
Risk factors of Omicron variant associated acute encephalitis/encephalopathy in children
CONCLUSIONS: Most cases of COVID-19-associated acute encephalitis/encephalopathy showed no evidence of direct viral invasion but associations with older age, increased peripheral neutrophil, and serum procalcitonin. These findings may imply the neutrophil-mediated systemic inflammatory response plays an important role on central nerve system, leading to cerebral dysfunction.PMID:37709632 | DOI:10.1016/j.jmii.2023.08.010
Source: Journal of Microbiology, Immunology, and Infection - September 14, 2023 Category: Microbiology Authors: Chong-Wei Huang Jainn-Jim Lin Chen-Yen Kuo Kuang-Lin Lin Yhu-Chering Huang Cheng-Hsun Chiu Yi-Ching Chen Chih-Ho Chen Yu-Chia Hsieh Source Type: research
