Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 40601-40620 of 98753
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(1998)Concepts about nutrient intake requirements and recommendations have emerged from a period of relative consensus about concepts and goals to one of vertiginous shifts of paradigms and a proliferation of agendas, often ...
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(Academic Press, 1998)Actualistic studies of small mammal taphonomy usually describe interspecific bone patterns of contemporary agents of bone deposition. These studies assume that each agent produces one specific bone pattern. Here we examine ...
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(1998)Thapsigargin (TG), a plant-derived sesquiterpene lactone, inhibits several isoforms of both the sarcoplasmic and endoplasmic reticulum Ca 2+- ATPases. Thus, intracellular Ca 2+ stores found in the endoplasmic reticulum can ...
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(1998)To evaluate the effect of nitric oxide (NO·) in human corpus luteum (CL) function, we investigated the expression and the presence of NO· synthase (NOS) in the human CL and the action of NO· on the in vitro luteal ...
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(1998)Prenatal malnutrition results in increased concentration and release of central noradrenaline, a neurotransmitter that is an important regulator of normal regressive events such as axonal pruning and synaptic elimination. ...
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(Oxford University Press, 1998)Flow cytometry analysis of luteal cells revealed that an important proportion of these cells are leukocytes. The percentage of leukocytes was higher in the early (42 ± 4) and late (35 ± 3) luteal phases than in the mid-luteal ...
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(American Lung Association, 1998)The purpose of the study was to validate the criteria used in the guidelines of the American Thoracic Society (ATS) for severe community- acquired pneumonia (CAP). Severe pneumonia was defined as admission to the intensive ...
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(1998)We have conducted flow cytometric studies of two subsets of lymphocyte markers in groups of migraineurs during (n = 12; group B) and outside (n = 10; group C) of a migraine without aura attack (total n = 22; group A), ...
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(1998)Penicillium purpurogenum was mutated with u.v. light to increase xylanase production. The best mutant, UV-64, was treated with N-methyl-N'-nitro-N-nitrosoguanidine and a second generation of mutants was obtained (NG-188 ...
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(1998)Genetic markers and total intelligence quotient (IQ) assessed by WISC (Wechsler Intelligence Scale for Children) were studied in children of both sexes from Santiago, Chile. Heterozygous boys for phosphoglucomutase 1 (PGM) ...
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(Academic Press Inc., 1998)There is increasing evidence that the different polymers that constitute the cytoskeleton are interconnected to form a three-dimensional network. The macromolecular interaction patterns that stabilize this network and its ...
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Presence of angiotensin II and expression of angiotensin II type-2 receptor in human fallopian tube (1998)Objective: To determine the presence of angiotensin II and angiotensin II type-2 receptor subtype messenger RNA (mRNA) in human fallopian tube. Design: Frozen fallopian tubes were used for all studies. Setting: Procedures ...
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(1998)The main aim of this study was to compare the effects of bilateral 6- OHDA lesion of the prefrontal, frontal and media cerebral cortex, with those of suction ablation of the same areas, upon apomorphine and amphetamine ...
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(Brazilian Journal of Genetics, 1998)The behavioral mechanisms by which the larvae of sympatric Chilean populations of Drosophila melanogaster, D. simulans, D. hydei and D. busckii select pupation sites are described in terms of larval substrate preferences. ...
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(Informa Healthcare, 1997)The eggshell of the chicken is a useful model to study matrix components which affect biomineralization. As an extension of our previous immunohistochemical work which suggested the presence of dermatan sulfate proteoglycans ...
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(Elsevier Inc., 1998)The mechanism of action of tramadol includes the activation of opioid receptors, and the potential ability of the drug to induce tolerance and physical dependence has been evaluated in different animal species and humans. ...
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(1998)Stimulation of pituitary GH secretion with administered GHRH can be effective therapy for those GH deficient (GHD) patients whose disorder results from insufficient endogenous GHRH secretion. We have previously shown that ...
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(Microbiology Society, 1998)Analysis of the 16S rRNA genes retrieved directly from different environments has proven to be a powerful tool that has greatly expanded our knowledge of microbial diversity and phylogeny. It is shown here that sequence ...
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(1998)The reduction of infarct size produced by brief ischemic episodes prior to a sustained occlusion of a coronary artery, called ischemic preconditioning, is a well known phenomenon that occurs in several species, but its ...
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(1998)Thiobacillus ferrooxidans is one of the chemolithoautotrophic bacteria important in industrial biomining operations. During the process of ore bioleaching, the microorganisms are subjected to several stressing conditions, ...
