Repositorio Académico de la Universidad de Chile: Recent submissions
Now showing items 43621-43640 of 101786
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(1998)Objective: The objective of this study is to evaluate the effect of risk factors on infant development, among low socioeconomic children born under optimal biological conditions, and who are exposed to adverse social ...
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(1997)The capacity to learn syntactic rules is a hallmark of the human species, but whether this has been acquired by the process of natural selection has been the subject of controversy. Furthermore, the cortical localization ...
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(1998)Background: Indoor air pollution could play an important role in the susceptibility to respiratory diseases of vulnerable individuals, such as elders and infants. Aim: To evaluate indoor air pollution in a low income ...
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Modulation by extracellular and intracellular iodide of volume-activated Cl- current in HeLa cells (1998)The patch-clamp technique was used to study the effect of extracellular and intracellular iodide on the properties of the volume-activated anion current in HeLa cells. Upon hypotonic challenge, HeLa cells responded by ...
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(1998)Background: Helicobacter pylori produces a gastric mucosal inflammation characterized by neutrophil infiltration, due to the liberation of interleukin-8. Aim: To measure interleukin-8 levels in gastric mucosa samples from ...
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(1998)The aim of the present work was to study the effects of three different types of bilateral lesions performed on the nucleus accumbens, upon the behaviors elicited in adult cats by parenteral administration of amphetamine ...
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(Biophysical Society, 1998)Fast (milliseconds) Ca2+ release from sarcoplasmic reticulum is an essential step in muscle contraction. To electrically compensate the charge deficit generated by calcium release, concomitant fluxes of other ions are ...
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(1998)Personality traits and disorders have a strong influence on the course and outcome of depressive and bipolar disorders. Studies of the influence of personality disorders (PD) and some PD clusters on outcome of mood disorders ...
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(1998)During the first steps of the gamete interaction, the proacrosin/acrosin system seems to play a crucial role in the secondary binding, holding acrosome-reacted spermatozoa during their passage through the zona pellucida. ...
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(Mosby Inc., 1998)Objective: For bottle-fed babies or nursing infants who receive milk supplements, the American Academy of Pediatrics recommends the use of iron- fortified infant formula. Because these recommendations have not been universally ...
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(1998)The distribution of membrane filipin sterol complexes (FSC) in the plasma membrane of the acrosomal region (PMAR) of rabbit sperm from epididymis and testis, in normal and hypercholesterolaemic rabbits, was examined at ...
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(1998)Adenosine 5'-cyclic diphosphoribose [cyclic ADP-ribose (cADPR)], a metabolite of NAD+ that promotes Ca2+ release from sea urchin egg homogenates and microsomal fractions, has been proposed to act as an endogenous agonist ...
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(Biophysical Society, 1998)The calcium dependence of ryanodine-sensitive single calcium channels was studied after fusing with planar lipid bilayers sarcoendoplasmic reticulum vesicles isolated from excitable tissues. Native channels from mammalian ...
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(Academic Press Inc., 1997)Hyperthyroidism enhances the prooxidant activity of the liver by elevating superoxide radical and/or hydrogen peroxide generation in microsomal, mitochondrial, and peroxisomal fractions, with an increased respiratory burst ...
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(1998)Indirect evidence has suggested that K-Cl cotransport in human and sheep erythrocytes is activated physiologically by a serine-threonine phosphatase. It is activated experimentally by H2O2 and by staurosporine, a kinase ...
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(Springer New York LLC, 1998)The influence of hydroxamic acids (Hx), plant secondary metabolites associated with aphid resistance in wheat, on the host acceptance and suitability of the aphid Sitobion avenae to the cereal aphid parasitoid Aphidias ...
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(1998)Human chorionic gonadotropin is a glycoprotein hormone that, like LH, stimulates steroidogenesis in gonadal cells. Using a desialylation process, 95 per cent of the sialic acid residues from an intact standard hCG molecule ...
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(Kluwer Academic Publishers, 1998)Hydroxamic acids are secondary metabolites typical of Poaceae that play a role in cereal resistance against pests and pathogens. The content of the hydroxamic acid aglucones DIBOA (2,4-dihydroxy-1,4-benzoxazin-3-one) and ...
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(Guilford Publications, 1998)This article describes what happened with the participants and the group as a whole in an analytical group psychotherapy session. Our aim is to reveal how the particular session was run. We describe a period of resistance ...
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(Mosby Inc., 1998)OBJECTIVE: The purpose of this study was to determine whether there are demonstrable alterations in uterine artery blood flow in pregnant women with mullerian duct anomaly. STUDY DESIGN: Flow velocity waveforms obtained ...
