Tag: Gastrointestinal Problems

The diet-microbiome connection in inflammatory bowel disease

Much remains mysterious about the factors influencing human inflammatory bowel disease (IBD), but one aspect that has emerged as a key contributor is the gut microbiome, the collection of microorganisms dwelling in the intestines. Diet is known to profoundly affect this microbial community, and special diets have been used as therapies for intestinal disorders including

Certain metabolites linked to stem cell function in the intestine: Molecules called ketone bodies may improve stem cells’ ability to regenerate new intestinal tissue

MIT biologists have discovered an unexpected effect of a ketogenic, or fat-rich, diet: They showed that high levels of ketone bodies, molecules produced by the breakdown of fat, help the intestine to maintain a large pool of adult stem cells, which are crucial for keeping the intestinal lining healthy. The researchers also found that intestinal

Bowel preparation for colon surgery unnecessary, study suggests

In recent decades, patients in Europe coming in for colectomies, or surgical procedures targeted at the colon, have not been routinely subjected to what is known as bowel preparation, where the bowel is emptied before the operation. In the United States , on the other hand, cleansing the bowel is relatively common. Several extensive retrospective

Rye is healthy, thanks to an interplay of microbes

Eating rye comes with a variety of health benefits. A new study from the University of Eastern Finland now shows that both lactic acid bacteria and gut bacteria contribute to the health benefits of rye. Published in Microbiome, the study used a metabolomics approach to analyse metabolites found in food and the human body. Rye

Take two E. coli and call me in the morning: Synthetic bacterial memory circuits enable microbial diagnostics for sensing biomolecules in the gut

Millions of people take capsules of probiotics with the goal of improving their digestion, but what if those bacteria were also able to detect diseases in the gut and indicate when something is awry? New research from the Wyss Institute at Harvard University and Harvard Medical School (HMS) has created an effective, non-invasive way to

Common food additive found to affect gut microbiota: Titanium dioxide nanoparticles E171 may impact human health

University of Sydney research provides new evidence that nanoparticles, which are present in many food items, may have a substantial and harmful influence on human health. The study investigated the health impacts of food additive E171 (titanium dioxide nanoparticles) which is commonly used in high quantities in foods and some medicines as a whitening agent.

Potential treatment for NEC in preemies: Scientists discover how to prevent disease in an animal model, offer a new direction toward treatment strategy

Cutting-edge discovery in the lab of Catherine Hunter, MD, from Stanley Manne Children’s Research Institute at Ann & Robert H. Lurie Children’s Hospital of Chicago offers a new direction toward treatment of necrotizing enterocolitis (NEC) — a devastating intestinal emergency that occurs in up to 10 percent of premature infants. NEC is a leading cause

Uncovering uncultivated microbes in the human gut: Human gut microbiome serves as model to demonstrate efficacy of computational tools

A tree’s growth is dependent on nutrients from the soil and water, as well as the microbes in, on, and around the roots. Similarly, a human’s health is shaped both by environmental factors and the body’s interactions with the microbiome, particularly in the gut. Genome sequences are critical for characterizing individual microbes and understanding their

A gut feeling for mental health

The first population-level study on the link between gut bacteria and mental health identifies specific gut bacteria linked to depression and provides evidence that a wide range of gut bacteria can produce neuroactive compounds. Jeroen Raes (VIB-KU Leuven) and his team published these results today in the scientific journal Nature Microbiology. In their manuscript entitled

New target for gastric cancer therapies: Researchers shed light on development of gastric cancer

Cardiff University researchers have uncovered new information about the underlying mechanisms for gastric cancer, providing hope of potential new therapies in the future. The team, at the University’s European Cancer Stem Cell Research Institute, found they could stop gastric cells dividing and growing by deleting a particular cell-surface receptor implicated in the function of stem

Whopping big viruses prey on human gut bacteria: Largest phages ever found in humans target bacteria associated with hunter-gatherer diets

Viruses plague bacteria just as viruses like influenza plague humans. Some of the largest of these so-called bacteriophages have now been found in the human gut, where they periodically devastate bacteria just as seasonal outbreaks of flu lay humans low, according to a new study led by University of California, Berkeley, scientists. These “megaphages” —

Study offers promise for preventing necrotizing enterocolitis in preemies: Preventing inflammatory white blood cell infiltration in the intestine decreases development of necrotizing enterocolitis in animal model

Researchers at Stanley Manne Children’s Research Institute at Ann & Robert H. Lurie Children’s Hospital of Chicago, and colleagues, discovered a promising direction toward understanding the development of necrotizing enterocolitis (NEC), a devastating intestinal disease commonly affecting premature infants, in order to treat it. Studying the early cellular events leading to NEC in a mouse

Could this widely used food additive cause celiac disease?

Myths about gluten are hard to bust. Intolerance, allergy, sensitivity, hypersensitivity. What is what? Celiac disease is none of these things. It is an autoimmune disorder, where gluten triggers the immune system to attack the gut. It is common, lifelong, and can seriously harm health — but nobody knows for sure what causes it. Now

Inflammatory bowel disease linked to prostate cancer: Men with inflamed guts are four to five times at risk for prostate cancer

Men with inflammatory bowel disease have four to five times higher risk of being diagnosed with prostate cancer, reports a 20-year study from Northwestern Medicine. This is the first report to show men with inflammatory bowel disease have higher than average PSA (prostate-specific antigen) values, and this group also has a significantly higher risk of

A study points to new therapeutic targets for tumors associated with chronic inflammation: A new study demonstrates that myeloid cells use p38 protein signalling to support inflammation-associated colon cancer

Scientists headed by ICREA researcher Angel R. Nebreda at the Institute for Research in Biomedicine (IRB Barcelona) report a new mechanism that contributes to the development of inflammation-associated colon cancer and points to new therapeutic targets. The study has been published in the journal EMBO Molecular Medicine. More than a million people worldwide are diagnosed