Gut microbiome linked to brain structure and symptom severity in people who drink heavily
Gut bacteria may be associated with differences in brain structure and clinical symptom severity in people with alcohol use disorder.
Jun 24, 2024
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Gut bacteria may be associated with differences in brain structure and clinical symptom severity in people with alcohol use disorder.
Jun 24, 2024
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A low-fiber "Western diet" causes damage to the protective mucus barrier in the gut, and such damage can increase the risk of inflammation and infection. By studying the gut bacteria of people who increased their intake of ...
Apr 29, 2024
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A study by New York and Rocky Mountain U.S. Department of Veterans Affairs researchers showed blast exposure can cause intestinal permeability, a condition that can lead to gut bacteria entering the bloodstream and causing ...
Apr 5, 2024
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You may think that artificial sweeteners can help you lose some weight, but a new study finds they are no good for your gut's microbiome.
Jan 3, 2024
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It's normal to have bacteria in your mouth. But harmful bacteria have been linked to a host of health problems. Medical scientist Glenda Davison and microbiologist Yvonne Prince, who have researched the oral cavity, explain ...
Oct 3, 2023
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The notion that diet and health are inextricably linked is hardly novel. For millennia, people have known that poor nutrition is responsible for many health problems. But the precise mechanisms that explain just how diet ...
Jun 28, 2023
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Probiotics can help maintain a healthy gut microbiome or restore populations of "good bacteria" after a heavy course of antibiotics. But now, they could also be used as an effective treatment strategy for certain intestinal ...
Jun 21, 2023
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In a study by a research group at Baylor College of Medicine, oral administration of a commercially available probiotic bacterial strain was found to improve dry eye disease in an animal model. The findings were presented ...
Jun 18, 2023
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Researchers from Niigata University and Kyoto Prefectural University have revealed that small vesicles, around 100 nm in size, released by intestinal bacteria induce immune activation and progression of liver cirrhosis, as ...
Apr 19, 2023
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A potential link between intestinal bacteria and the disproportionately higher rates of certain chronic disease and mental health risks among Native Hawaiians and other Pacific Islanders (NHPIs) has been discovered by an ...
Apr 13, 2023
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The gut flora consists of the microorganisms that normally live in the digestive tract of animals. The gut flora includes much of the human flora. The term "gut flora" is interchangeable with intestinal microflora and intestinal microbiota.
The average human body, consisting of about 1013 (10,000,000,000,000 or about ten trillion) cells, has about ten times that number of microorganisms in the intestines. The metabolic activity performed by these bacteria is equal to that of a virtual organ causing some to describe the gut bacteria as a "forgotten" organ.
Bacteria make up most of the flora in the colon and 60% of the dry mass of feces. Somewhere between 300 and 1000 different species live in the gut, with most estimates at about 500. However, it is probable that 99% of the bacteria come from about 30 or 40 species. Fungi and protozoa also make up a part of the gut flora, but little is known about their activities.
Research suggests that the relationship between gut flora and humans is not merely commensal (a non-harmful coexistence), but rather is a mutualistic, symbiotic relationship. Though people can survive with no gut flora, the microorganisms perform a host of useful functions, such as fermenting unused energy substrates, training the immune system, preventing growth of harmful species, regulating the development of the gut, producing vitamins for the host (such as biotin and vitamin K), and producing hormones to direct the host to store fats. However, in certain conditions, some species are thought to be capable of causing disease by producing infection or increasing cancer risk for the host.
This text uses material from Wikipedia, licensed under CC BY-SA