Keyword: microbiome
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Research suggests that the gut microbiome plays a pivotal role in the development of chronic obstructive pulmonary disease (COPD), paving the way for new therapeutic treatments. Key discoveries include the identification of distinct gut bacteria associated with COPD and the potential effectiveness of fecal microbiota transfer (FMT) as a COPD treatment. The study also demonstrated improved outcomes for COPD patients through nutritional interventions tailored to the microorganisms found in the gut. "The gut hosts the largest and most diverse microbiome in the body that, depending upon its composition, can either trigger or inhibit inflammation, including in the lung," said Professor...
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Chronic bowel inflammation is based on an excessive or misdirected inflammatory reaction. Experts assume that the immune system also reacts incorrectly to microorganisms in the intestine that do not cause an inflammatory immune reaction in a healthy state. Now, researchers have discovered that yeast fungi could play an important role in this. Trillions of microorganisms colonize the human body, especially the intestine. This microbiome consists mainly of viruses and bacteria, but to a lesser extent also of fungi. However, according to current research, this interaction is disturbed in Crohn's disease, a chronic inflammatory bowel disease where the immune cells react...
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Researchers have identified a microbial signature for autism spectrum disorder, a critical finding that offers clarity about how the gut microbiome influences this neurological syndrome.The data-driven study published by 43 researchers challenges the idea that autism is a primarily genetic condition and suggests that environmental factors may be behind the sharp rise in the debilitating condition.The trillions of microbes (bacteria, viruses, fungi, and other microorganisms) that populate the gut microbiome are the basis of that microbial signature. Other research has found that having more microbes and greater diversity is associated with health and lower disease risk. Among other tasks, gut...
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A large team has discovered some of the ways gut bacteria can positively impact treatments for cancer. The group studied the impact of gut microbiota on chemotherapy given to patients with pancreatic ductal adenocarcinoma. Prior research has shown that chemotherapy for pancreatic cancer that has metastasized sometimes works well but is sometimes ineffective, and this difference may be tied to dietary resistance, though its source is not known. In this new study, the team looked at the possibility that certain microorganisms in the gut microbiome play a role in the process. To better understand how the gut microbiome might play...
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New research indicates that daily prune consumption may improve the gut fecal microbiome of postmenopausal women. The fecal microbiome—the ecosystem of microorganisms found in one's fecal matter—reflects an individual's overall gut health. Results from the study showed notable enrichment in bacteria from the family Lachnospiraceae. This group of bacteria has been associated with an ability to decrease inflammatory markers in the body and help maintain the integrity of the gut barrier. The goal of this study was to characterize the effect of prune supplementation on the gut microbiome of postmenopausal women. Menopause is marked by a decline in ovarian hormones,...
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Urolithin A, a metabolite of ellagitannins in pomegranates, boosts immune cells’ ability to combat tumors by inducing a process known as mitophagy. STORY AT-A-GLANCE Urolithin A (UA) has emerged as a powerhouse player in the fight against cancer, as it may naturally boost tumor-fighting immune cells. UA is a metabolite of ellagitannins in pomegranates that has anti-inflammatory and anticancer effects. UA “recycles and renews mitochondria” by inducing a biological pathway known as mitophagy—the process of cleaning out your mitochondria, allowing them to function at their best. This changes T cells’ genetic program, making them more able to fight tumors. In...
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An estimated 500 to 1,000 bacterial species reside in each person's gut, perhaps numbering 100,000 trillion microorganisms. Researchers used mouse models to explore how diet and feeding patterns affect these intestinal microbes—and the health of the hosts, particularly with obesity and type 2 diabetes. "It's important to realize that the gut microbiome is constantly changing, not only based on what we're eating, but also based on the time of day," said Amir Zarrinpar, MD, Ph.D. "And what we've learned is that cyclical changes in the gut microbiome are quite important for health since they help with the circadian clock, and...
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Key to living past 100 may hinge on your gut health, study of centenarians shows TOKYO — Centenarians have unique gut bacteria that enables them to live to a ripe old age, according to new research. Scientists in Japan say this unique gut makeup fuels bile acids that protect against disease. The discovery could lead to yogurts and other probiotic foods that increase longevity. “In people over the age of 100, an enrichment in a distinct set of gut microbes generate unique bile acids,” says lead author Professor Kenya Honda of Keio University in a statement per South West News...
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This piece first appeared in Cosmos Magazine in January 2020: we are republishing it in honour of World Microbiome Day. Two overarching questions confront would-be human spacefarers: where to go and how to get there. Much attention has been given to the latter question. For interstellar travel to become a reality, major engineering advances are required, probably involving radically new propulsion systems. Many proposals are highly speculative, but we know of no fundamental physical principles that forbid interstellar travel; whether or not it becomes a reality boils down to technology, cost and motivation. I wish to address the oft-neglected first...
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People who follow the Paleo diet often do so for health reasons, eschewing many carbs, especially grains, in favor of lean meats and vegetables. Now, research indicates that this “caveman” style of eating may have hidden dangers to your heart health. The Paleo diet, which draws nutritional guidelines from the diets of our human ancestors, advocates eating like a hunter and gatherer—consuming lots of meat, vegetables, nuts, and some fruits—while excluding agriculturally-based foods such as grains, legumes, and dairy, along with refined sugar and processed oils. Though no one would argue the nutritional merits of vegetables and lean protein, pulling...
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David Whitlock has not showered or bathed for 15 years, yet he does not have body odour. “It was kind of strange for the first few months, but after that I stopped missing it,” he says. “If I get a specific part of my body dirty, then I’ll wash that specific part” – but never with soap. As well as germs, soap gets rid of the skin’s protective oils and alters its pH level. Although Whitlock appreciated gaining an extra 15 minutes a day from soap-dodging, his primary motivation was to encourage friendly microbes to live on him in symbiotic...
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If I told you there's a new kind of medicine that could heal you, but it was made from germs, would you take it? If you’re open to the idea – or maybe because it sounds gross – then hang with me and let’s start here. We see germs as a threat, and we've gotten really good at killing the ones that cause infections with things like hand sanitizers and antibiotics. In fact, since 1950 the rate of infectious diseases, like measles, mumps and TB has plummeted. But during that same time, chronic diseases, including asthma, diabetes and Crohn’s disease...
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The rich array of microbiota in our intestines can tell us more than you might think.Eighteen vials were rocking back and forth on a squeaky mechanical device the shape of a butcher scale, and Mark Lyte was beside himself with excitement. ‘‘We actually got some fresh yesterday — freshly frozen,’’ Lyte said to a lab technician. Each vial contained a tiny nugget of monkey feces that were collected at the Harlow primate lab near Madison, Wis., the day before and shipped to Lyte’s lab on the Texas Tech University Health Sciences Center campus in Abilene, Tex. Lyte’s interest was not...
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Over the last few years there have been a number of studies suggesting that male circumcision may protect against HIV infection. Several possible reasons have been offered by experts as to why circumcision offers protection against HIV infection. Now here's one more reason... A study led by Lance Price of the Translational Genomics Research Institute suggests that a significant shift in the bacterial community or microbiome of the penis as a result of circumcision could explain HIV protection. The researchers found that in men who were circumcised, the total bacterial load under the foreskin was 33.3 percent less than those...
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Studies of gut bacteria are beginning to untangle how diet affects health in old age — but determining cause and effect is tricky. Almost everything about eating gets more difficult with age. Elderly people typically cannot taste or smell as well as they used to, decreasing the appeal of some foods. Dental issues or a dry mouth can impede chewing; loss of muscle tone in the pharynx can make swallowing difficult; constipation and the side effects of medication can make digestion uncomfortable; and decreased mobility makes a chore of grocery shopping or cooking complex meals. Little wonder that older people...
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Sequencing project finds that Europeans share a surprising number of bacteria. Researchers have unveiled a catalogue of genes from microbes found in the human gut. The information could reveal how 'friendly' gut bacteria interact with the body to influence nutrition and disease. "This is the most powerful microscope that's been used so far to describe microbial communities," says George Weinstock, a geneticist at Washington University in St. Louis who was not involved in the study. The human body contains about ten times as many microbes as human cells, and most of them live in the gut. The new study, published...
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