Publications by authors named "Jose Luis Hernandez-Islas"
Background: Screening for infectious diseases in newborns using immunoglobulin (Ig)A-, IgM-, and IgE-specific antibodies is expensive and impractical. To determine if total levels of these Igs can be used for screening purposes, thus simplifying the process, their basic levels in the 1(st) month of extrauterine life need to be determined. Additionally, the ability to simplify screening by using saliva also needs to be determined.
View Article and Find Full Text PDFThe aim of this study was to analyze the effect of nutritional status and exposure to ozone on the activity of Na+/K+ ATPase and lipid peroxidation in rat brain. Male Wistar rats were fed 7% and 23% protein diets. Two groups were formed for each nutritional status: one group was exposed for 15 successive days to 0.
View Article and Find Full Text PDFThe objective of the present trial was to evaluate the effect of toluene and o-cresol, m-cresol, and p-cresol on serotonin (5-HT), its precursor 5-hydroxytryptophane (5-HTP), Na(+),K(+)-ATPase, total ATPase, and lipid peroxidation (TBARS) in rat brain. Evaluation of lipid peroxidation was realized by means of TBARS, determination of biogenic amines and enzymes assay was carried out in brain homogenate samples using HPLC and spectrophotometry, respectively. Five groups of male Wistar rats (200 g) were treated as follow: control, toluene, o-cresol, m-cresol, and p-cresol groups, which were administered 35 mg/kgi.
View Article and Find Full Text PDFBackground: The aim of this study was to evaluate effects of pyridoxine and butylated hydroxytoluene (BHT) on lipid peroxidation and on levels of 5-hydroxytryptophan and serotonin.
Methods: Thirty rats (30 days of age) were used in the survey, measuring levels of lipid peroxidation (TBARS), hemoglobin, 5-hydroxytryptophan (5-HTP), and serotonin (5-HT) after intraperitoneal (i.p.