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A system allowing the separation and quantitation of individual species of fecal fatty acids, sterols and bile acids in a single chromatographic step is described. The system is based on the butylation of carboxyl groups and acetylation of free hydroxyls of the compounds in fecal lipid extracts, followed by their resolution by temperature-programmed gas(More)
INTRODUCTION Aneurysms, described in pediatric AIDS, are related with bad prognosis with high mortality in 5 months. The twenty reports found in literature were considered late (mean age 9.97 years old) and associated with severe immunological involvement. The mean CD-4 count was 79.17 cells and mean viral load 222,662 copies/mL. Some authors consider this(More)
In an investigation of the roles of diet and stool biochemistry in human colorectal carcinogenesis, 24-hour food, urine, and stool samples were collected from randomly selected participants from two populations with a fourfold difference in colorectal cancer risk: Chinese in Sha Giao, People's Republic of China (low risk), and Chinese-Americans of similar(More)
The knowledge of the right management of dental traumas is very important for the pediatrician due both to their high incidence in this age group and to prevent further pathologic events related. Several studies indicate that in industrialized countries , about one in five children have had a traumatic dental injury to permanent teeth before leaving school.(More)
Hemolytic uremic syndrome (HUS) is a thrombotic microangiopathy defined by thrombocytopenia, non-immune microangiopathic hemolytic anemia and acute renal failure. HUS is typically classified into two primary types: 1) HUS due to infections, often associated with diarrhea (D+HUS, Shiga toxin-producing Escherichia Coli-HUS), with the rare exception of HUS due(More)
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