نتایج جستجو برای: large intestine
تعداد نتایج: 1060782 فیلتر نتایج به سال:
This perspective on Bertagnolli et al. (beginning on p. 588 in this issue of the journal) and Lipkin et al. (beginning on p. 597) considers the likelihood that statins have chemopreventive efficacy in the large bowel. An observational analysis within a clinical trial of celecoxib found no benefit of statin use on the risk of colorectal adenomas (and some suggestions of an adverse effect). On th...
The view, that rapidly growing tumours are more likely than slow-growing tumours to metastasize and become lethal, has remained almost axiomatic for decades. Unaware of any solid evidence supporting this view, we undertook an exhaustive system-level analysis of intra- and intercellular signalling networks. This analysis indicated that rapid growth and metastasis are often different outcomes of ...
The body maintains Mg(2+) homeostasis by renal and intestinal (re)absorption. However, the molecular mechanisms that mediate transepithelial Mg(2+) transport are largely unknown. Transient receptor potential melastatin 6 (TRPM6) was recently identified and shown to function in active epithelial Mg(2+) transport in intestine and kidney. To define the relationship between Mg(2+) status and TRPM6 ...
Anaerobic bacteria from the colon of laboratory mice were enumerated and isolated using strict anaerobic techniques. Direct microscopic counts revealed 4.4 X 10(10) organisms in each gram (wet weight) of colon contents. Actual cultural counts averaged 3.2 X 10(10) organisms, which was 73% of the direct microscopic count. The tentatively identified genera were Bacteroides, Eubacterium, Fusobacte...
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Since 1859, when Lambl noted the occurrence of amcebse in human feces., but without attributing to them any pathogenic significance, these organisms have been repeatedly described and found associated with a considerable variety of diseases. Lewis and Cunningham, in 1870, found them accompanying affections of the large intestine; the following year Cunningham discovered that the stools of nearl...
Aims: To describe the microscopic appearance of adenovirus infection in the large bowel of human immunodeficiency virus (HIV) positive patients with diar-
When mixed cultures containing sporeforming bacteria were treated with heat or with ethanol, the latter consistently resulted in better recovery of Clostridium and Bacillus species. Both techniques were effective in eliminating vegetative cells. An ethanol concentration greater than 25% and exposure for 45 min or longer were necessary to kill all vegetative cells in mixed-culture samples. Ethan...
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