Renin News and Research

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Renin, also known as angiotensinogenase, is an enzyme that participates in the body's renin-angiotensin system (RAS) that mediates extracellular volume (i.e., that of the blood plasma, lymph and interstitial fluid), and arterial vasoconstriction. Thus, it regulates the body's mean arterial blood pressure.

Promising treatment does not guard against complication in type 1 diabetes

Historically, half or more of people with type 1 diabetes develop kidney disease, which frequently progresses to kidney failure requiring hemodialysis or a kidney transplant for survival.

25 Jun 2020

ACE inhibition in kidney could influence pathogenesis of SARS-CoV-2

The dynamics of angiotensin-converting enzyme 2 (ACE2) expression in the kidney could have implications for the infectivity and pathogenicity of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), say researchers.

24 Jun 2020

Low potassium levels in COVID-19 disease

Now a new study by an Italian team of researchers published in June 2020 on the preprint server medRxiv reports that potassium levels are often low in COVID-19 disease, mostly due to the urinary loss of potassium.

17 Jun 2020

SARS-CoV-2 mutation reduces S1 shedding, increases infective potential

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the seventh coronavirus known to infect humans. SARS-CoV-2 emerged in the last month of 2019 in Wuhan, China, sparking off the ongoing COVID-19 pandemic. This virus enters the host cells through receptor binding and membrane fusion between the viral and host cell membrane.

16 Jun 2020

High-salt diet may modulate the gut microbiome

Particularly in females with untreated hypertension, reducing salt intake to what's considered a healthier level appears to be good for both their gut microbiome and their blood pressure, scientists report.

9 Jun 2020

Metabolic diseases alter ACE2 expression and increase COVID-19 severity

A new study published on the preprint server medRxiv in June 2020 reports that one mechanism for this variable severity is the differential expression of the ACE2 receptor in various metabolic conditions, thereby facilitating viral entry into the host cells.

9 Jun 2020

How comorbidities affect SARS-CoV-2 viral entry

Almost from the start of the current COVID-19 pandemic, it has become clear that individuals suffering from other medical conditions like diabetes, cardiovascular disease, and lung disease are far more likely to contract the infection and to have a poorer outcome.

28 May 2020

ACE2 receptors in the kidney not linked to high BP or RAS blockers

Even as the COVID-19 pandemic continues to smolder and flare up in various parts of the world, researchers are still trying to make sense of the virus, its routes of spread, its target tissues, and the immune responses it induces. One crucial piece of knowledge is that the primary viral receptor is a human enzyme called angiotensin-converting enzyme 2 (ACE2).

27 May 2020

Study shows antihypertensive drugs do not raise serum levels of ACE2

A new study published on the preprint server medRxiv* by researchers from Iceland and the U.S. shows how treatment with angiotensin-converting enzyme inhibitors (ACEIs) or angiotensin receptor blockers (ARBs) does not raise angiotensin-converting enzyme 2 (ACE2) levels in human serum – and cautions against the discontinuation of these drugs among patients affected with coronavirus disease (COVID-19).

26 May 2020

RAAS inhibitors are safe to use in COVID-19 patients, study shows

The coronavirus disease (COVID-19) is a novel illness that has spread across the globe in just five months. Caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the viral infection binds to the angiotensin-converting enzyme 2 (ACE2) to enter and invade cells.

21 May 2020

Main receptors used by SARS-CoV-2 for cell entry are absent in the human placenta

Although severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is unlikely to infect human placenta through the canonical cell entry mediators, Wayne State University researchers showed that other interacting proteins may still play an important role during the viral infection. The study is currently available on the preprint server bioRxiv.

20 May 2020

Sleep apnea may increase the risk of severe COVID-19, say researchers

An analysis conducted by researchers at the University of Turku and Turku University Hospital in Finland has suggested that obstructive sleep apnea (OSA) may be a risk factor for severe coronavirus disease 2019 (COVID-2019).

19 May 2020

ACE inhibitors should not be discontinued over fears about COVID-19, say researchers

Researchers in Europe have found no evidence to support previous reports that the use of drugs that target the renin-angiotensin-aldosterone system (RAAS) increases susceptibility to coronavirus disease 2019 (COVID-19). The research is published in the European Heart Journal.

10 May 2020

Vitamin D could improve outcomes in COVID-19

A new study published on the preprint server medRxiv* in May 2020 shows that vitamin D could have a beneficial effect on the course of illness for COVID-19 patients.

7 May 2020

High blood pressure drugs found to be safe for COVID-19 patients

Despite concerns expressed by some experts, common high blood pressure drugs did not increase the risk of contracting COVID-19 - or of developing severe disease - in a study of 12,594 patients.

3 May 2020

New clinical trial to assess whether hypertension drug may reduce COVID-19 severity

Researchers at University of California San Diego School of Medicine have launched a clinical trial to investigate whether a drug approved for treating high blood pressure, heart failure and diabetic kidney disease might also reduce the severity of COVID-19 infections, lowering rates for intensive care unit admissions, the use of mechanical ventilators and all-cause mortality.

30 Apr 2020

Radboudumc researchers find essential mechanism in the disease process of COVID-19

Researchers at the Radboud University Medical Center seem to have found an essential mechanism in the disease process of COVID-19, which has so far been overlooked.

29 Apr 2020

French scientists suggest nicotinic agonists could treat COVID-19

Contrary to the warnings issued by health agencies worldwide against cigarette smoking amid the coronavirus disease (COVID-19), a new paper suggests the possibility that nicotine, a component of tobacco, could prevent coronavirus infection.

28 Apr 2020

Role of ACE/ARB inhibitors in the treatment of COVID-19

A new opinion piece published in the journal Circulation Research in April 2020 defends the use of antihypertensive drugs called ACE inhibitors and ARBs in patients with pandemic viral pneumonia called COVID-19.

20 Apr 2020

Do ACE inhibitors increase SARS-CoV-2 binding to ACE2?

The COVID-19 pandemic has forced clinicians and academicians to intensive research to find evidence for many conventional therapies. A new round-up editorial published in the journal Cardiovascular Research in April 2020 summarizes the current clinical grounds for and against the use of the commonly used angiotensin axis inhibitors in patients with COVID-19.

20 Apr 2020