Gastrointestinal Tract News and Research

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Antibodies to SARS-CoV-2 spike protein and RBD detected in saliva of mRNA-vaccine recipients

A team of researchers from the US and the Netherlands recently reported that antibodies to the spike protein and the RBD are detected in saliva samples from healthcare workers vaccinated with mRNA vaccines.

12 Mar 2021

Study rethinks the role of ACE2 in SARS-CoV-2 viral entry

Researchers in the US recently infected a series of human lung and head/neck cancer cell lines with SARS-CoV-2 that expressed varying levels of ACE2 and the TMPRSS2 protease to reassess their role in viral entrance.

8 Mar 2021

Reduced ambulatory function in cancer survivors associated with increased risk of death

Bottom Line: Cancer survivors had a greater risk of reduced ambulatory function, which was associated with an increased risk of death.

4 Mar 2021

SARS-CoV-2 viremia predicts severe COVID-19 disease outcomes

The SARS-CoV-2 plasma viremia has been linked to severe disease and death in COVID-19 cases in small-scale cohort studies. The current study, published on the pre-print server medRxiv, aimed to study the mechanisms behind this relationship.

2 Mar 2021

Cellular maps capture COVID-19 pathogenesis in detail

Researchers in the United States and Finland have used tissues from people who died from coronavirus disease 2019 (COVID-19) to generate detailed cellular maps of the pathogenetic processes that occur within affected organs during severe disease.

1 Mar 2021

Beneficial bacteria passed on to infants through breast milk change over time

The cocktail of beneficial bacteria passed from mother to infant through breast milk changes significantly over time and could act like a daily booster shot for infant immunity and metabolism.

23 Feb 2021

Specific cell-to-cell communication associated with progression of gastrointestinal stromal tumors

Gastrointestinal stromal tumors (GISTs) are a subytpe of cancers known as sarcomas. GIST is the most common type of sarcoma with approximately 5,000 to 6,000 new patient cases annually in the United States.

18 Feb 2021

Brain pericytes serve as a potential hub for SARS-CoV-2 infection

A team of scientists from the United States has recently conducted a study using pericyte-like cell-containing brain cortical organoids as an experimental model to investigate the impact of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection on the central nervous system.

11 Feb 2021

A new method to determine how carcinogenic bacteria reach their targets

The gram-negative bacteria Helicobacter pylori (H. pylori) colonize the stomachs of the majority of the world's population.

11 Feb 2021

Single strain of bacteria may reduce the severity of graft-versus-host disease

MUSC Hollings Cancer Center researchers found that a single strain of bacteria may be able to reduce the severity of graft-versus-host disease (GVHD), as reported online in February 2021 in JCI Insight.

11 Feb 2021

Study reveals new molecular mechanism linked to severe anaphylaxis

Anaphylaxis is a systemic allergic reaction that can affect the skin, the gastrointestinal tract, the respiratory system and the cardiovascular system.

9 Feb 2021

Gut fungi teach the immune system how to respond to their dangerous relatives

Common fungi, often present in the gut, teach the immune system how to respond to their more dangerous relatives, according to new research from scientists at Weill Cornell Medicine. Breakdowns in this process can leave people susceptible to deadly fungal infections.

7 Feb 2021

Ancestral components of human gut microbiota are fundamental to health

Neanderthals' gut microbiota already included some beneficial micro-organisms that are also found in our own intestine.

5 Feb 2021

New diagnostic imaging tool measures naturally occurring enzymes in the gastrointestinal tract

A healthy person has a general balance of good and bad bacteria. But that balance is thrown off when someone gets sick.

5 Feb 2021

Early use of therapeutic anticoagulation does not improve survival of critically ill COVID-19 patients

Although abnormal blood clotting has been identified as one of the primary causes of death from COVID-19, early treatment in an intensive care unit (ICU) with therapeutic anticoagulation (anti-clotting) for adults who are critically ill with COVID-19 does not appear to improve chances of survival, and could do more harm than good by increasing the risk for major bleeding, a multicenter research group cautions.

3 Feb 2021

Iron-carrying extracellular vesicles promote viral-bacterial co-infection

The mechanism by which acute viral respiratory infections promote secondary bacterial growth and infection in the airways depends on iron-carrying extracellular sacs secreted by the cells lining the host's airways, report researchers from the University of Pittsburgh School of Medicine in a paper published today in Cell Reports.

26 Jan 2021

CoQ10 supplement could be a valuable complementary therapeutic option for various diseases

A study led by scientists from the University of Granada (UGR) has found that a supplement of Coenzyme Q10 (CoQ10), an essential molecule for life that is synthesized in the cells of our organs and tissues and is also acquired through diet, could constitute a valuable complementary therapeutic option in the treatment of certain mitochondrial diseases, colon cancer, thyroid carcinoma, and Crohn’s disease.

18 Jan 2021

Poor gut health may adversely affect COVID-19 prognosis

People infected with COVID-19 experience a wide range of symptoms and severities, the most commonly reported including high fevers and respiratory problems.

12 Jan 2021

Insulin nanoparticles may become an alternative to insulin injections for diabetic patients

Scientists at Nanyang Technological University, Singapore (NTU Singapore) have developed insulin nanoparticles that may one day become the basis for an oral medicine, and an alternative to insulin injections for diabetic patients.

12 Jan 2021

Vimentin could be a major co-factor that aids SARS-CoV-2 infection

A recent study has found that extracellular vimentin can bind to SARS-CoV-2 spike protein in vitro, and antibodies against vimentin can decrease virus infectivity by up to 80%. This suggests vimentin could aid the virus’s binding to host cells and help in infection.

11 Jan 2021