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    inflammatory bowel disease tagged posts

    Single treatment with curli fibres ameliorates TNBS colitis. Colitis was induced in 6–8-week female Balb/c (n=6–7) mice by intrarectal instillation of 1% TNBS in 50% ethanol or 50% ethanol as a vehicle control. Day 1 post TNBS enema, mice were administered treatments as follows: 0.1 mg curli (oral), 0.4 mg curli (oral), 0.1 mg anti-TNFα (i.p.) or no treatment. (a) survival (n=6), (b) histopathological scores at day 6 post TNBS induction were plotted and (c) H&E images were taken. (d) Stool consistency scores were determined at day 3 post TNBS induction. It should be noted that larger areas of immune cell infiltration and lymphoid follicles in the submucosa was determined in the colonic tissue of mice treated with TNBS alone as compared with the groups that received curli treatment (*P<0.05; **P<0.01; ****P<0.0001). H&E, hematoxylin and eosin; i.p., intraperitoneal; TNBS, 2,4,6-trinitrobenzene sulphonic acid; TNF, tumour necrosis factor; Tx, treatment.

    Single treatment with curli fibres ameliorates TNBS colitis. Colitis was induced in 6–8-week female Balb/c (n=6–7) mice by intrarectal instillation of 1% TNBS in 50% ethanol or 50% ethanol as a vehicle control. Day 1 post TNBS enema, mice were administered treatments as follows: 0.1 mg curli (oral), 0.4 mg curli (oral), 0.1 mg anti-TNFα (i.p.) or no treatment. (a) survival (n=6), (b) histopathological scores at day 6 post TNBS induction were plotted and (c) H&E images were taken. (d) Stool consistency scores were determined at day 3 post TNBS induction...

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    How does your microbiome grow?

    September 2, 2015, Categories  Biology/Biotechnology, Health/Medical

    Bacterial growth rates computed with the new method are shown (top, average; bottom, for specific species, red represents faster replication) for a human subject that underwent a radical dietary change. Compared are days in which only white boiled rice was consumed (grey area) and days of normal diet (white area). A global change in bacterial growth dynamics was observed between dietary regimens. Credit: Weizmann Institute of Science

    Bacterial growth rates computed with the new method are shown (top, average; bottom, for specific species, red represents faster replication) for a human subject that underwent a radical dietary change. Compared are days in which only white boiled rice was consumed (grey area) and days of normal diet (white area). A global change in bacterial growth dynamics was observed between dietary regimens. Credit: Weizmann Institute of Science

    The reproduction rates of the bacteria in one’s gut may be a good indicator of health or disease, scientists say. In their examination of human microbiome data, the research group found that particular changes in bacterial growth rates are uniquely associated with type II diabetes; others are tied to inflammatory bowel disease, for example.
    The study began w...

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    Basic Computing Elements Created in Bacteria

    July 10, 2015, Categories  Biology/Biotechnology, Health/Medical

    Researchers unveil a series of sensors, memory switches, and circuits that can be encoded in the common human gut bacterium. These basic computing elements will allow the bacteria to sense, memorize, and respond to signals in the gut, with future applications that might include the early detection and treatment of inflammatory bowel disease or colon cancer.

    Researchers have previously built genetic circuits inside model organisms such as E coli. However, such strains are only found at low levels within the human gut. “We wanted to work with strains like B thetaiotaomicron that are present in many people in abundant levels, and can stably colonize the gut for long periods of time,” Lu says.




    METHOD: A series of genetic parts was made th...

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