Related Experiment Video
Updated: Dec 12, 2025

Live Imaging and Quantification of Viral Infection in K18 hACE2 Transgenic Mice Using Reporter-Expressing Recombinant SARS-CoV-2
Published on: November 5, 2021
Updated information on new coronavirus disease 2019 occurrence, drugs, and prediction of a potential receptor
Forouzan Khodaei1,2,3, Anam Ahsan3, Mostafa Chamanifard4
1Department of Bioinformatics, College of Life Sciences, Shanxi Agricultural University, Taigu, China.
Abstract:
The new coronavirus (COVID-19) was first reported in Wuhan in China, on 31 December 2019. COVID-19 is a new virus from the family of coronaviruses that can cause symptoms ranging from a simple cold to pneumonia. The virus is thought to bind to the angiotensin-converting enzyme 2, as a well-known mechanism to enter the cell. It then transfers its DNA to the host in which the virus replicates the DNA. The viral infection leads to severe lack of oxygen, lung oxidative stress because of reactive oxygen species generation, and overactivation of the immune system by activating immune mediators. The purpose of this review is to elaborate on the more precise mechanism(s) to manage the treatment of the disease. Regarding the mechanisms of the virus action, the suggested pharmacological and nutritional regimens have been described.
Insights
This review explains how the novel coronavirus (COVID-19) infects cells by binding to angiotensin-converting enzyme 2. It details the resulting oxidative stress and immune overactivation, suggesting treatment strategies.
Area of Science:
- Virology
- Immunology
- Pathophysiology
Background:
- The novel coronavirus (COVID-19) emerged in Wuhan, China, in late 2019.
- COVID-19 presents with a spectrum of symptoms, from mild cold-like illness to severe pneumonia.
- The virus utilizes the angiotensin-converting enzyme 2 receptor to enter host cells.
Purpose of the Study:
- To elucidate the precise mechanisms of COVID-19 pathogenesis.
- To review and suggest effective pharmacological and nutritional treatment regimens for COVID-19 management.
Main Methods:
- Review of existing scientific literature on COVID-19 mechanisms.
- Analysis of viral entry pathways and cellular responses.
- Compilation of proposed therapeutic strategies.
Main Results:
- Viral entry involves binding to angiotensin-converting enzyme 2, followed by host cell DNA replication.
- Infection triggers severe hypoxia, lung oxidative stress via reactive oxygen species, and immune system overactivation.
- Pharmacological and nutritional interventions are suggested based on understanding these mechanisms.
Conclusions:
- Understanding the detailed mechanisms of COVID-19 infection is crucial for effective treatment.
- Targeting viral entry, oxidative stress, and immune responses may offer therapeutic benefits.
- A combination of pharmacological and nutritional approaches shows promise for managing COVID-19.
Related Concept Videos
Drug Discovery: Overview
Drug-Receptor Interactions
Several parameters, such as the drug's affinity for its receptor and its efficacy, which is its ability to activate the receptor, determine the drug's effect on the tissue....
Drugs Used in Lower Respiratory Disorders: Overview
Bronchodilators, the first step of respiration enhancement, come in various forms, each with its own mechanism...
Steps in Outbreak Investigation
Drug-Receptor Interaction: Agonist
Agonists can bind to receptors in different ways. Some agonists bind directly to the receptor's active site, mimicking the endogenous...
Single Nucleotide Polymorphisms-SNPs

