نتایج جستجو برای: intestinal bacteria populations
تعداد نتایج: 529999 فیلتر نتایج به سال:
Alterations in the composition of intestinal commensal bacteria are associated with enhanced susceptibility to multiple inflammatory diseases, including those conditions associated with interleukin (IL)-17-producing CD4(+) T helper (Th17) cells. However, the relationship between commensal bacteria and the expression of proinflammatory cytokines remains unclear. Using germ-free mice, we show tha...
Tetrahydrobiopterin (BH4) is a cofactor of a number of regulatory enzymes. Although there are no known BH4 exogenous sources, the tissue content of this biopterin increases with age in GTP cyclohydrolase 1-deficient hyperphenylalaninemia-1 (hph-1) mice. Since certain bacteria are known to generate BH4, we hypothesize that generation of this biopterin by the intestinal microbiota contributes to ...
this study was conducted to evaluate the effect of camphor levels on performance, organ weight, testosterone and thyroid hormones, intestinal selective bacteria, and meat peroxidation of japanese quail. two-hundred 1-d chicks were allocated in 20 cages with five treatments and four replicates (10 chicks per each cage) using complete randomized block design. treatments were including: 0, 62.5, 1...
Our bodies are homes to millions of bacteria – some of which are particularly nasty, and others which can play an important role in our overall health and wellbeing. Scientific research over the past 50 years has uncovered the benefits that good bacteria can provide, particularly in relation to intestinal health. It was discovered that regular doses of the ‘good’ bacteria that live in the intes...
Normal bacteria can translocate (migrate) across an intact intestinal mucosa, but the anatomical site of bacterial translocation has not been defined. Gastrointestinal (GI) cross-sections were obtained from mice monoassociated with high cecal concentrations of Escherichia coli, Proteus mirabilis, or Enterococcus faecalis. As previously reported (C. L. Wells, R. P. Jechorek, and K. J. Gillingham...
Secretory-immunoglobulin A (S-IgA) plays an important role in immunological defense in the intestine. It has been known for a long time that microbial stimulation is required for the development and maintenance of intestinal IgA production. Recent advances in genomic technology have made it possible to detect uncultivable commensal bacteria in the intestine and identify key bacteria in the regu...
BACKGROUND The effect of dietary fiber on intestinal function primarily has been ascribed to its interaction with intestinal bacteria in the hindgut, whereas changes in intestinal bacteria in the host have been considered to depend on fiber composition. OBJECTIVES The objectives of this study were to determine the contribution of the major fiber components to the health-promoting effects of w...
Introduction: The intestine, as an important part of the human gastrointestinal tract, provides a favorable milieu for the growth and development of a diverse and large population (approximately 1000 species) of bacteria. Currently, the presence of a cohesive relationship between intestinal bacteria and the host is being well studied and identified. According to the available scientific evidenc...
Studies which have been done about effects of herbs on reinforcing and stimulating the immune system in aquatic against pathogens indicate their considerable impacts. Herbs usage is becoming more common because they are cheap, with no side effects for fish, human and the environment. The aim of this research is to add essential oils of eucalyptus (Eucalyptus globules) and thyme (Zataria multifl...
Background and purpose: Transgenic rice is a type of rice that its genetic sequence has been changed to improve its quantity and quality. Bt (Bacillus thuringiensis) transgenic rice expresses Cry1Ab protein and is named Tarom Molaii. There are no studies on the effect of this type of transgenic rice on gastrointestinal health in Iran, so, this study investigated the effect of Tarom Molaii tran...
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