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New antibody testing study finds evidence of early COVID-19 infections in the U.S.

A new antibody testing study examining samples originally collected through the National Institutes of Health's All of Us Research Program found evidence of SARS-CoV-2 infections in five states earlier than had initially been reported.

15 Jun 2021

Low-fiber, high-fat diets cause significant shifts in the gut microbiome

Changes to gut microbiome are known to impact metabolic health. Physiologists at Laval University in Canada have discovered that diets containing low fiber and high fat cause significant shifts in the gut microbiome - the collection of bacteria, viruses, fungi and other multicellular microorganisms that live in the gastrointestinal system.

15 Jun 2021

Study may offer an unexpected pathway for targeted treatment of brain tumors

In a new study led by Yale Cancer Center, researchers show the nucleoside transporter ENT2 may offer an unexpected path to circumventing the blood-brain barrier (BBB) and enabling targeted treatment of brain tumors with a cell-penetrating anti-DNA autoantibody.

15 Jun 2021

Research provides insights into why COVID-19 patients develop severe blood clots

Scientists have identified how and why some Covid-19 patients can develop life-threatening clots, which could lead to targeted therapies that prevent this from happening.

15 Jun 2021

Prenatal exposure to air pollutants may increase infants' obesity risk

Women exposed to higher levels of air pollution during pregnancy have babies who grow unusually fast in the first months after birth, putting on excess fat that puts them at risk of obesity and related diseases later in life, new CU Boulder research shows.

15 Jun 2021

Adapting COVID-19 vaccination strategies based on SARS-CoV-2’s evolution

Given the risk of SARS-CoV-2 developing new variants in unvaccinated individuals, vaccination sites are crucial. However, new research from the University of Michigan, USA, shows current vaccination programs may be worsening regional outbreaks when viral strains and SARS-CoV-2 escape mutations outdo vaccination rates.

15 Jun 2021

Could urine tests predict kidney injury and mortality in COVID-19?

A team of scientists from the Columbia University, New York, has recently identified a potential biomarker to predict acute kidney injury in COVID-19 patients. By analyzing urine samples of 444 COVID-19 patients, they have revealed that the urinary level of neutrophil gelatinase-associated lipocalin (NGAL) can be used to determine the severity and duration of acute kidney and tubular injuries, as well as to predict the risk of mortality in acute COVID-19 patients.

15 Jun 2021

RBD and NTD antibody cocktail could prevent the emergence of SARS-CoV-2 escape mutants

A new bioRxiv* preprint demonstrates how a combination of antibodies to two different regions on the viral spike could enhance neutralization efficiency as well as prevent the emergence of resistant variants.

15 Jun 2021

Does SARS-CoV-2 show seasonal variation in transmission in temperate countries?

The need to understand how and why such spread occurs is vital to containing it. A new medRxiv* preprint describes a significant reduction in transmission during the summer (by 42%), which is comparable to the impact of the most effective non-pharmaceutical intervention (NPI).

15 Jun 2021

Fusogenicity and resistance of SARS-CoV-2 B.1.1.7 and B.1.351 compared to D614G

A new study, released as a preprint on the bioRxiv* server, describes the biological effects induced by mutations in two circulating VOCs. These are the alpha and beta strains, also called B.1.1.7 and B.1.351, respectively.

15 Jun 2021

Potent antibodies against SARS-CoV-2 can be produced without T follicular helper cells, suggests study

It has been uncertain whether antibodies produced via this non-canonical pathway are protective against SARS-CoV-2. In a new study, recently released as a preprint on the bioRxiv*server, the neutralization potency of these antibodies is compared with those traditionally produced in germinal center-based antiviral responses.

15 Jun 2021

Does the number of siblings you have affect your health?

News-Medical spoke to Professor Peter M Nilsson about cardiovascular disease risk and whether this is affected by the number of siblings you have.

15 Jun 2021

Study finds ‘widespread’ use of toxic chemicals in a range of cosmetics

Cosmetics from the United States have been found to contain high levels of polyuoroalkyl substances (PFAS), associated with a range of harmful conditions.

15 Jun 2021

Examining how the consumption of ultra-processed foods increases adiposity in children

A recent paper discusses the positive association that exists between the consumption of ultra-processed foods and adiposity measurements from children.

15 Jun 2021

Carbon-based antimicrobial nanoweapons to fight COVID-19

In a recent review article published in the journal ACS Nano, interdisciplinary researchers from across the world evaluated the role of carbon-based nanomaterials (CBNs), such as fullerene, carbon dots, graphene, and their derivatives as promising alternatives to combat COVID-19 (coronavirus disease 2019) and other microbial infections.

15 Jun 2021

Alkaloids show potential as treatments for COVID-19

To further study these organic compounds, researchers from Kermanshah University of Medical Sciences, Iran, and Universidad de Santiago de Chile, Chile, reviewed the role of alkaloids as a potential antiviral, specifically against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). They presented the chemistry, plant sources, and antiviral effects of alkaloids and their anti-SARS-CoV-2 effect.

15 Jun 2021

Treatment-resistant depression relieved by laughing gas

Researchers at the Washington University School of Medicine in St. Louis and the University of Chicago have found that a single, one-hour treatment involving the inhalation of a mixture of oxygen and the anesthetic drug nitrous oxide, also known as laughing gas, can improve symptoms of depression in people resistant to treatment.

15 Jun 2021

CDC reports rare cases of heart inflammation in young men after mRNA COVID-19 vaccination

Vaccination efforts have rolled out in most countries starting in the last quarter of 2020 with more than 2.37 billion vaccines administered worldwide so far. However, reports of cardiac inflammation (myocarditis and pericarditis) occurring after the mRNA COVID-19 vaccination (Pfizer-BioNTech and Moderna) have increased in the United States since April 2021.

15 Jun 2021

Weight-based dosing strategy may affect immunotherapy outcomes, shows study

Overweight cancer patients receiving immunotherapy treatments live more than twice as long as lighter patients, but only when dosing is weight-based, according to a study by cancer researchers at UT Southwestern Medical Center.

15 Jun 2021

Analysis of COVID-19 patients with repeatedly positive SARS-CoV-2 tests

New research published on the medRxiv preprint server provides a detailed analysis of COVID-19 patients who had repeated positive PCR tests for SARS-CoV-2 infection in a large US COVID-19 electronic health record (EHR) database.

15 Jun 2021