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We compared the direct E-test susceptibility testing (DET) on respiratory samples with a standard microbroth dilution method (MBD) after quantitative cultures. A total of 152 samples from intensive care unit patients were processed by DET onto Mueller-Hinton agar. Oxacillin, piperacillin/tazobactam, cefepime, imipenem, ciprofloxacin, and amikacin were the(More)
The GHRP-6 seems to act at a pituitary site, activating different intracellular messenger pathways from those utilized by GHRH, and at the hypothalamic level where receptors for GHRP-6 have been demonstrated. This study examines the effect of GHRP-6 on GH secretion in vitro and in vivo. Lamb adenohypophysial cell cultures were subjected to a challenge with(More)
The aims of this work were to determine the effect of feeding BALB/c mice a diet containing culture materials of a citrinin producing strain of Penicillium citrinum(Thom). Changes in hematological parameters, serum chemistry and histological changes in liver, kidney and heart were determined. After 60 days, control treated (CT) mice appeared normal in all(More)
Previous studies have reported that the growth hormone (GH)-releasing peptide (GHRP-6), a synthetic Met-enkephalin peptide analog, stimulates GH release in vivo in a variety of species, including bovine. In the present study, the in vitro effects of GHRP-6 on bovine somatotropes separated by elutriation were analyzed as well as its interactions with the(More)
BACKGROUND The detection of pregnant group B streptococci (GBS) carriers allows intrapartum administration of antibiotic prophylaxis to these women and prevents perinatal infection by this microorganism. The aim of this study was to determine the usefulness of a selective media to detect GBS in the vagina based on the disk-broth method. MATERIAL AND(More)
In this work, the combined use of the morphometric study of somatotroph cells and plasma GH levels provided new data for the interpretation of the role played by OT and GHRH on GH cells. GHRH 1-29 (15 micrograms/kg), oxytocin (2.5 IU animal) or 1 ml saline solution were administered to male lambs. The GH plasma concentration was measured by RIA and for the(More)
The aims of this work were to study the influence of secondary metabolites produced by a Penicillium citrinum strain. Mus musculus mice were fed with a diet containing those metabolites to determine both its influence on their development and the pathological and biochemical changes on experimental animals. Male and female including pregnant females, were(More)
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