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Study finds minimal SARS-CoV-2 viral load in vaginal secretions

The virus has also been observed to be present in blood, urine, feces, and tears, though not in semen. Vaginal secretions have not been consistently shown to be positive for the virus in most studies. The authors of a new study in the Journal of Clinical Medicine affirm that the presence of the virus in the vagina is rare, irrespective of pregnancy.

28 Jun 2021

Anti-inflammatory nanoparticles could be applied to the weakening muscles of DMD patients

Muscular dystrophies are a group of genetic diseases that lead to the progressive loss of muscle mass and function in patients, with the incurable Duchenne Muscular Dystrophy (DMD), which affects all the body's muscles primarily in boys, being particularly severe.

25 Jun 2021

New risk score system to accurately predict leukemia relapse

Leukemia is a group of blood cancers that affects thousands of people worldwide. However, with advances in medicine, several different types of leukemia can be effectively treated with donor stem cells through allogenic stem cell transplantation (allo-SCT).

24 Jun 2021

CD39+ monocyte count higher in pregnant than non-pregnant COVID-19 patients

A new study published on the bioRxiv* server describes the changes in the representation of a subset of activated monocytes in this group of patients.

23 Jun 2021

Can antioxidants help manage neurological complications in COVID-19?

In a recent study published in Antioxidants, researchers evaluated the use of antioxidants as potential adjuvants for the treatment of COVID-19.

23 Jun 2021

Albumin supplementation improves human fertility, fights infection

A new University of California, Irvine-led study reveals albumin (Alb), among the most abundant proteins in the body, activates a proton channel (hHv1), also widespread in the body, giving sperm the ability to penetrate and fertilize an egg, and allowing white blood cells to secrete large amounts of inflammatory mediators to fight infection.

22 Jun 2021

COVID-19 studies should provide sex-disaggregated data, researchers warn

Researchers have warned that studies examining sex-specific responses to infection with SARS-CoV-2 must provide sex-disaggregated data.

21 Jun 2021

Study reveals how immune cells coordinate their swarming behavior to eliminate pathogens

The body is well protected against invading pathogens by barriers such as the skin. But if you injure yourself and break your skin, pathogens can easily enter your body through the wound and cause severe infections.

21 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

Study suggests COVID-19 in children is milder than the flu

Researchers retrospectively analyzed the medical records of children in Turkey hospitalized because of coronavirus disease 2019 (COVID-19) or influenza and found COVID-19 to be milder than influenza in this group.

14 Jun 2021

Major anti-cancer protein released by neutrophils selectively kills tumor cells

A study published in the June 10, 2021 issue of Cell describes a remarkable new mechanism by which the body's own immune system can eliminate cancer cells without damaging host cells.

10 Jun 2021

Pathogenic airway neutrophilia drives ARDS in Black patients with severe COVID-19 in case study

Researchers from the US used a systems immunology approach where they combined high-dimensional flow cytometry and multi-omics single-cell sequencing analyses of immune profiles taken from the airways and matching blood samples of Black/AA patients.

9 Jun 2021

Could sustained inflammation following mild to moderate COVID-19 be a driver of long COVID?

A new study describes the discovery of sustained though low-level rises in inflammatory mediators and immune cells, as well as the loss of some subsets of naïve un-activated cells. This may indicate a widespread though muted immune-mediated inflammatory response in these patients.

7 Jun 2021

Mast cell activation may underlie inflammation in severe COVID-19

A new preprint research paper posted to the medRxiv* server points to mast cells as major culprits in the etiology of severe and critical COVID-19. This could suggest suitable therapeutic and preventive interventions to reduce the morbidity and mortality of this viral illness.

3 Jun 2021

Could a green tea compound combat SARS-CoV-2?

Researchers recently published an article that reviewed the mechanisms by which EGCG could inhibit SARS-CoV-2 infection and the various syndromes caused by COVID-19.

3 Jun 2021

New insight into how platelets help resolve bacterial lung inflammation

Treating patients with acute respiratory failure is a constant challenge in intensive care medicine. In most cases, the underlying cause is lung inflammation triggered by a bacterial infection or - more rarely, despite being frequently observed at present due to the corona pandemic - a viral infection.

2 Jun 2021

Depleting SIRPα-deficient in macrophages activate tumor antigen-specific cytotoxic T cells

In a study that will be published in Nature Communications on May 28, 2021, a research team led by Dr. Yuan Liu from Georgia State University reports that intratumoral SIRPα-deficient macrophages activate tumor antigen-specific cytotoxic T cells to eliminate various syngeneic cancers under radiotherapy.

2 Jun 2021

Researchers find natural metabolites help SARS-CoV-2 escape antibodies

An international team of scientists has identified a human molecule — biliverdin — as a potential severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) target. The binding of the heme metabolite to the N-terminal domain of SARS-CoV-2 is associated with the virus’s ability to dodge the immune system by suppressing antibody binding to the spike protein.

2 Jun 2021

SARS-CoV-2 NSP14 induces potent inflammation via NF-κB pathways, finds study

SARS-CoV-2 has a single-stranded RNA genome encoding both structural and non-structural proteins. Of these, the latter is known to play a variety of roles in viral replication and the assembly of new viral particles, as well as in suppressing cellular immune responses. A new study reports the activity of one such protein, the non-structural protein 14 (NSP14), which activates the inflammatory mediator NF-κB to trigger intense inflammation.

31 May 2021

Researchers identify defensins as potential anti-SARS-CoV-2 agents

A recent study conducted at the Ohio State University, USA, and the Fudan University, China, has revealed that alpha-defensin human neutrophil peptide 1 (HNP1), a cationic antimicrobial peptide, can prevent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from infecting cells by destabilizing the viral spike protein and disrupting spike-mediated viral envelop – host cell membrane fusion.

31 May 2021