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Protocol for evaluating humoral immune responses in mice following SARS-CoV-2 vaccination.
STAR Protoc
January 2025
Guangzhou National Laboratory, Bio-Island, Guangzhou, Guangdong 510005, China; State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510182, China. Electronic address:
Binding and neutralizing antibodies are critical indicators of protection against viral pathogens and are essential for assessing the immunogenicity and efficacy of a vaccine. Here, we present a protocol comprising two assays for measuring the spike-specific binding and neutralizing antibodies in mouse plasma following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccination. We describe steps for determining binding antibody titers using enzyme-linked immunosorbent assay (ELISA) and assessing neutralizing antibody titers through a pseudovirus neutralization assay.
View Article and Find Full Text PDFPreparation and characterization of a rat uterine decellularized scaffold.
Gland Surg
December 2024
Department of Gynecology, Wenzhou People's Hospital, Wenzhou, China.
Background: Infertility is a special reproductive health defect. For women, congenital uterine malformations, extensive adhesions in the uterine cavity, and hysterectomy are associated with infertility. Uterine transplantation is technically feasible, but its clinical application and development are limited by donor shortages and immune rejection.
View Article and Find Full Text PDFRenin-angiotensin-aldosterone system activation in plasma as marker for prognosis in critically ill patients with COVID-19: a prospective exploratory study.
Ann Intensive Care
January 2025
Department of Anaesthesia, Intensive Care Medicine and Pain Medicine, Division of General Anaesthesia and Intensive Care Medicine, Medical University of Vienna, Vienna, Austria.
Background: Acute respiratory distress syndrome (ARDS) associated with coronavirus infectious disease (COVID)-19 has been a challenge in intensive care medicine for the past three years. Dysregulation of the renin-angiotensin system (RAS) is linked to COVID-19, but also to non-COVID-19 ARDS. It is still unclear whether changes in the RAS are associated with prognosis of severe COVID-19.
View Article and Find Full Text PDFUnveiling the multifaceted bioactivity of copper(II)-Schiff base complexes: a comprehensive study of antioxidant, anti-bacterial, anti-inflammatory, enzyme inhibition and cytotoxic potentials with DFT insights.
Dalton Trans
January 2025
Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 22, Kerala, India.
The rise of various diseases demands the development of new agents with antioxidant, antimicrobial, anti-inflammatory, enzyme-inhibiting, and cytotoxic properties. In this study, heterocyclic Schiff base complexes of Cu(II) featuring a benzo[]thiophene moiety were synthesized and their biological activities evaluated. The complexes were characterized using FT-IR, UV-Vis, and EPR spectroscopy, TG-DTG analysis, magnetic moment measurements, molar conductivity measurements, and elemental analyses.
View Article and Find Full Text PDFComparison of RT-qPCR With Branched DNA to Quantify a Lipid Nanoparticle-Encapsulated mRNA Therapeutic in Serum and Liver Tissue Samples From Nonclinical PK Studies.
AAPS J
January 2025
Moderna, Inc., Cambridge, Massachusetts, USA.
While the branched DNA (bDNA) assay is an established bioanalytical method for measurement of lipid nanoparticle (LNP)-encapsulated messenger RNA (mRNA) pharmacokinetic parameters, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) has been considered as an alternative platform. RT-qPCR and bDNA platforms were compared for sensitivity, specificity, correlation, and overall assay performance using serum and tissue samples from 2 nonclinical mouse studies of a therapeutic mRNA candidate, LNP-PAH-mRNA, which encodes for human phenylalanine hydroxylase enzyme. Pharmacokinetic parameter noncompartmental analysis was completed using Phoenix WinNonlin.
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