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 detect a sarbecovirus phylogenetically related to SARS-CoV-2 from bats in Japan

A team of researchers at the University of Tokyo in Japan have detected a sarbecovirus, called Rc-o319, which is phylogenetically positioned in the same clade as SARS-CoV-2 in Rhinolophus cornutus bats in Japan.

2 Dec 2020

Particulate matter levels can play a significant role in SARS-CoV-2 transmission

A new study has found that particulate matter (PM) plays a role in providing surfaces for SARS-CoV-2 transmission and interaction, enabling fomite transmission through deposition.

2 Dec 2020

SARS-CoV-2 deletion mutations may have attenuated infectivity in some strains

A team of researchers at the University of Hong Kong has identified a panel of SARS-CoV-2 variants, called Del-mut, which contains a deletion in the S1/S2 junction. Upon investigating one of the deleted variants in animal models, they found that Del-mut-1 is attenuated in its ability to cause disease or pathological changes.

2 Dec 2020

Research suggests plant flavonols could serve as effective antivirals for SARS-CoV-2

Researchers in Algeria have reviewed some of the evidence suggesting that flavonols commonly found in many plants and vegetables could be used as a therapeutic approach to coronavirus disease 2019 (COVID-19).

1 Dec 2020

Does smoking increase risk of COVID-19 hospitalization?

A study conducted by UK researchers has found that patients hospitalized with coronavirus disease 2019 (COVID-19) were less likely to be current smokers than patients who had been admitted with other types of respiratory viral infections last year (2019).

1 Dec 2020

SARS-CoV-2's microRNAs may have promoted its jump to humans

A new study uses machine learning to explore the small microRNAs (or miRNAs) of SARS-CoV-2 that may determine the virus's ability to successfully infect humans by altering the course of transcriptional events.

1 Dec 2020

Nucleic acid-hydrolyzing scFv 3D8 exhibits potent antiviral effects on SARS-CoV-2

3D8, a 27-kDa recombinant antibody fragment, was found in autoimmune-prone Murphy Roths Large mice. The single-chain variable fragment (scFv) has the nucleic acid hydrolyzing activity and is shown to degrade DNA or mRNA of viruses in infected cells.

30 Nov 2020

Good cholesterol helps SARS-CoV-2 enter cells

The researchers explained that the SARS-CoV-2 can infect human host cells after its viral spike protein (SARS-2-S) binds to a cellular surface receptor called the angiotensin-converting enzyme 2 (ACE2).

30 Nov 2020

A mutant SARS-CoV-2 subspecies from minks may evade antibody detection

In a recent research letter published on the bioRxiv preprint server, scientists from Japan discovered that the mutation of spike glycoprotein in the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) derived from farmed minks can also be found in the group of individuals with coronavirus disease (COVID-19) and subsequently evade detection by our immune system.

30 Nov 2020

Could the keto diet help prevent or mitigate severe COVID-19?

A new study published in the journal of Translational Medicine reports that the ketogenic diet (KD) may be useful in this area, with its track history of effectual reduction of fat mass, anti-inflammatory and immunomodulatory effects, and consequent improvement of cardiovascular health.

30 Nov 2020

Female reproductive hormones may be protective against COVID-19

In an article recently published in Trends in Endocrinology & Metabolism, Graziano Pinna from the University of Illinois in Chicago outlines some of the evidence suggesting that female reproductive hormones may play a role in the sex bias that has been observed in coronavirus disease 2019 (COVID-19).

29 Nov 2020

Study exposes human olfactory and brain cells as genuine viral targets of SARS-CoV-2

In a study published in the iScience journal, a research group from Switzerland shows that the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) receptors and entry genes are expressed in the human olfactory neuroepithelial cells and brain by observing key molecular players implicated in the infectious process

29 Nov 2020

SARS-CoV-2 spike protein shows slow but stable evolution, study finds

A new preprint published in November 2020 describes the seven different clades into which the virus has diversified.

27 Nov 2020

Monoclonal antibody HB27 shows potent neutralizing activity against SARS-CoV-2

A new study reports a very promising anti-SARS-CoV-2 monoclonal antibody, HB27, that appears to have two distinct mechanisms of action inhibiting the virus-host cell interaction and subsequent infection.

27 Nov 2020

N439K mutation of SARS-CoV-2 may be more infectious and antibody resistant than Wuhan strain

Researchers from the Harbin Institute of Technology, China, modeled the complexes formed between the RBD and the human ACE2 and monoclonal antibodies.

27 Nov 2020

Ipom-F inhibits SARS-CoV-2 infection in vitro

An international team of researchers showed the small molecule inhibitor, ipomoeassin F (Ipom-F), blocks the translocation/insertion of the three protein targets for SARS-CoV-2 infection.

27 Nov 2020

Novel cannabis plant extracts could protect against COVID-19

Researchers in Canada have conducted a study suggesting that novel Cannabis sativa extracts may decrease levels of the host cell receptor that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) uses to gain viral entry to target tissues.

26 Nov 2020

Transgenic mouse model could recapitulate severe COVID-19 in humans

Researchers in the United States and Canada have described the potential for a transgenic mouse model to serve as an effective platform for the study of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and severe disease course in humans.

26 Nov 2020

Antihypertensive drugs may reduce COVID-19 mortality in at-risk patients

A new multicenter study that recently appeared on the medRxiv* preprint server in November 2020 has found a lower or equal risk of fatal COVID-19 in hypertensive patients, depending on the type of medication they are on.

26 Nov 2020

Early interferon therapy may mitigate COVID-19 severity

A recent review of COVID-19 therapies explores the utility of interferons in the battle against severe COVID-19, and concludes that they deserve further development.

26 Nov 2020