Angiotensin News and Research

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Angiotensin is an oligopeptide in the blood that causes vasoconstriction, increased blood pressure, and release of aldosterone from the adrenal cortex. It is a powerful dipsogen. It is derived from the precursor molecule angiotensinogen, a serum globulin produced in the liver. It plays an important role in the renin-angiotensin system.

Scientists develop a cell-free assay to screen SARS-CoV-2 entry inhibitors

Scientists have developed and validated a cell-free fluorescence assay for the rapid screening of protein inhibitors.

7 Oct 2021

Graphene biosensor in a portable and wireless device for rapid SARS-CoV-2 detection

A new study posted to the medRxiv* server and led by Dr. Mattia D'Agostino, Dr. Eleonora Pavoni and Dr. Alice Romagnoli from the Polytechnic University of Marche in Ancona (Italy), a gFET biosensor that uses angiotensin-converting enzyme 2 (ACE2) as a bioreceptor has been put forth as a viable solution.

6 Oct 2021

SARS-CoV-2 emerging variants display enhanced syncytia formation

Researchers compared the replication and syncytia forming potential of Alpha, Beta, and D614G strains in human cell lines and primary airway cells.

6 Oct 2021

Study shows lower SARS-CoV-2 infection rates in smokers

Coronavirus disease 2019 (COVID-19) primarily infects the lungs, later spreading through the bloodstream. The worst prognoses are mostly seen in ‘at-risk’ groups, such as the immunocompromised, elderly, or those suffering from respiratory conditions.

6 Oct 2021

Autoimmune disease drug helps prevent lung damage, death in mice with SARS-CoV-2 infection

In a new paper, researchers at the University of Illinois Chicago report that a drug approved for treating patients with autoimmune disease helped to prevent lung damage and death in mice infected with the SARS-CoV-2 virus, which causes COVID-19 in humans.

6 Oct 2021

Cysteamine inhibits SARS-CoV-2 variants of concern in vitro

Researchers in the United States have shown that a compound currently used to treat cystinosis exhibits broad antiviral activity against variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19).

5 Oct 2021

Plasmid DNA vaccines induce effective antibody responses against SARS-CoV-2 in mice

Researchers in the United States and China have developed plasmid DNA immunogens that induce effective antibody responses in mice against the spike protein of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) – the agent that causes coronavirus disease 2019 (COVID-19).

5 Oct 2021

SARS-CoV-2 beta variant elicits variant specific and cross-reactive antibodies

One recent study assessed the serum of Beta variant infected patients to determine whether major non-VOC antibodies could neutralize this virus.

5 Oct 2021

Emergence and evolution of endemic and emerging coronavirus diversity in humans and animals

A study aimed to understand the evolutionary and epidemiology dynamics of coronavirus diversity in animals, humans, and wildlife at ecosystem interfaces.

5 Oct 2021

Study looks at immunosuppressants and COVID vaccine efficacy

Researchers investigate the effects of five established immunosuppressant medications following COVID-19 vaccination.

4 Oct 2021

Difficulties of stability and storage of mRNA COVID-19 vaccines

Two researchers have collaborated to review the difficulties faced in storing and transporting these vaccines in a manner that will keep them stable.

4 Oct 2021

Using a new public antibody to understand SARS-CoV-2 neutralization

SARS-CoV-2 infects host cells by binding to the angiotensin convertase 2 receptor (ACE2) on the cell surface through its trimeric spike (S) protein. SARS-CoV enters host human cells through endosomes, while SARS-CoV-2 enters through the cell surface and endosomes. The present study published in the journal “Cell Reports” aimed to understand the mechanisms of SARS-CoV-2 antibody neutralization to facilitate the development of therapeutic interventions for COVID-19.

4 Oct 2021

Two-mAb cocktail prevents SARS-CoV-2 infection, study suggests

A promising study shows that a combination of two monoclonal antibodies effectively neutralized SARS-CoV-2 in monkeys and proved efficacious against newer variants of concern in vitro.

1 Oct 2021

Structure of monoclonal antibody that can potently neutralize SARS-CoV-2 and variants of concern

A new preprint deals with the analysis of the monoclonal antibody J08, which was capable of powerful neutralization of the wildtype SARS-CoV-2, and its VOCs.

1 Oct 2021

Study finds US pediatric COVID-19 cases are higher than expected

Researchers from the CDC have investigated differences in seroprevalence across pediatric age groups to estimate an infection to case ratio.

1 Oct 2021

New approach reveals ‘protein partners’ that may contribute to unusual pathologies of COVID-19

COVID-19 not only causes symptoms characteristic of a typical respiratory disorder, but has also been known to trigger a wide range of other symptoms in people who had been infected, some lasting even long after individuals test negative for the virus.

30 Sep 2021

SARS-CoV-2 infection aided by antibody-dependent enhancement

The coronavirus disease 2019 (COVID-19) pandemic has raised concerns about the detrimental effects of antibodies. Antibody-dependent enhancement (ADE) of infection is one of the biggest concerns in terms of not only the antibody reaction to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) upon reinfection with the virus but also the reaction to COVID-19 vaccines.

30 Sep 2021

Immunocompromised patients show decreased response to SARS-CoV-2 mRNA vaccines

Researchers explore the germinal cell responses in both healthy individuals and kidney transplant patients in their recent study.

29 Sep 2021

Study finds strong evidence of transplacental passage of IgG antibodies following COVID vaccination

In the current study, researchers investigate the transplacental transmission of antibodies in vaccinated pregnant women.

29 Sep 2021

Study investigates the mechanism underlying kidney damage in COVID-19 patients

A review article published in the journal Frontiers in Physiology by researchers affiliated with the Federal University of São Paulo in Brazil discusses the mechanisms whereby SARS-CoV-2 damages the kidneys, potentially serving as a basis for further research in pursuit of treatments to prevent severe renal problems and even chronic kidney disease in COVID-19 patients.

29 Sep 2021