Effets de la perfusion de facteurs natriurétiques auriculaires synthétiques sur quelques flux régionaux chez le volontaire sain [Effect of synthetic atrial natriuretic factors on various regional blood flows in the healthy subject]

The effects of continuous infusions of 2 synthetic atrial natriuretic peptides Ile12-(3-28) (rANP) and Meth12-(3-28) (hANP) eicosahexapeptides on blood pressure, heart rate, skin blood flow, glomerular filtration rate, renal plasma flow, apparent hepatic blood flow, and carotid blood flow were evaluated in normal volunteers. A rANP infusion at increasing rates (1-40 micrograms/min) induced a decrease in blood pressure, an increase in heart rate and in skin blood flow linearly related to the dose administered. In contrast, hANP infusion at 1 microgram/min for 4 hours induced an initial increase followed by a secondary fall in skin blood flow without blood pressure changes. A 4-hour rANP infusion at 0.5 and 5 mcg/min did not alter glomerular filtration rate but induced a delayed and dose-related fall in renal plasma flow from 531 to 461 (p less than 0.05), and from 554 to 342 ml/min (p less than 0.001) respectively, with a consequential rise in the filtration fraction. The 5 mcg/min dose furthermore significantly reduced blood pressure following a latency period of 2.5 hours. A 2-hours rANP infusion at 0.5 micrograms/min induced a fall in apparent hepatic blood flow from 1,087 to 863 ml/min (p less than 0.01), without simultaneously altering blood pressure. Similarly, a 2-hour hANP infusion at 2 micrograms/min altered neither blood pressure nor carotid blood flow. In conclusion, ANP infusion induced changes in systemic and regional hemodynamics varying in direction, intensity and duration.

Regional and cellular patterns of reelin mRNA expression in the forebrain of the developing and adult mouse

The reelin gene encodes an extracellular protein that is crucial for neuronal migration in laminated brain regions. To gain insights into the functions of Reelin, we performed high-resolution in situ hybridization analyses to determine the pattern of reelin expression in the developing forebrain of the mouse. We also performed double-labeling studies with several markers, including calcium-binding proteins, GAD65/67, and neuropeptides, to characterize the neuronal subsets that express reelin transcripts. reelinexpression was detected at embryonic day 10 and later in the forebrain, with a distribution that is consistent with the prosomeric model of forebrain regionalization. In the diencephalon, expression was restricted to transverse and longitudinal domains that delineated boundaries between neuromeres. During embryogenesis,reelin was detected in the cerebral cortex in Cajal-Retzius cells but not in the GABAergic neurons of layer I. At prenatal stages, reelin was also expressed in the olfactory bulb, and striatum and in restricted nuclei in the ventral telencephalon, hypothalamus, thalamus, and pretectum. At postnatal stages, reelin transcripts gradually disappeared from Cajal-Retzius cells, at the same time as they appeared in subsets of GABAergic neurons distributed throughout neocortical and hippocampal layers. In other telencephalic and diencephalic regions,reelin expression decreased steadily during the postnatal period. In the adult, there was prominent expression in the olfactory bulb and cerebral cortex, where it was restricted to subsets of GABAergic interneurons that co-expressed calbindin, calretinin, neuropeptide Y, and somatostatin. This complex pattern of cellular and regional expression is consistent with Reelin having multiple roles in brain development and adult brain function.

Kommunistinen manifesti kontekstissaan : Marx ja kapitalismin voittokulun epätodennäköinen historia

Abstract: The Communist Manifesto in context

Regional and cellular gene expression changes in human Huntington's disease brain.

Huntington's disease (HD) pathology is well understood at a histological level but a comprehensive molecular analysis of the effect of the disease in the human brain has not previously been available. To elucidate the molecular phenotype of HD on a genome-wide scale, we compared mRNA profiles from 44 human HD brains with those from 36 unaffected controls using microarray analysis. Four brain regions were analyzed: caudate nucleus, cerebellum, prefrontal association cortex [Brodmann's area 9 (BA9)] and motor cortex [Brodmann's area 4 (BA4)]. The greatest number and magnitude of differentially expressed mRNAs were detected in the caudate nucleus, followed by motor cortex, then cerebellum. Thus, the molecular phenotype of HD generally parallels established neuropathology. Surprisingly, no mRNA changes were detected in prefrontal association cortex, thereby revealing subtleties of pathology not previously disclosed by histological methods. To establish that the observed changes were not simply the result of cell loss, we examined mRNA levels in laser-capture microdissected neurons from Grade 1 HD caudate compared to control. These analyses confirmed changes in expression seen in tissue homogenates; we thus conclude that mRNA changes are not attributable to cell loss alone. These data from bona fide HD brains comprise an important reference for hypotheses related to HD and other neurodegenerative diseases.

Midwest Regional Rail Passenger Initiative and Passenger Rail Service in Iowa Status Report

This report provides the status of the Passenger Rail Service Revolving Fund and the development and operation of the midwest regional rail system and the state's passenger rail service.

Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2012

Audit report on the South Central Iowa Regional E-911 Service Board for the year ended June 30, 2012

Audit report on the Regional Utility Service Systems Commission for the year ended June 30, 2012

Audit report on the Regional Utility Service Systems Commission for the year ended June 30, 2012

Audit report on the Heart of Iowa Regional Transit Agency, Des Moines, Iowa, for the year ended June 30, 2012

Audit report on the Heart of Iowa Regional Transit Agency, Des Moines, Iowa, for the year ended June 30, 2012

Audit report on the Heart of Iowa Regional Transit Agency, Des Moines, Iowa, for the year ended June 30, 2004

Audit report on the Heart of Iowa Regional Transit Agency, Des Moines, Iowa, for the year ended June 30, 2012

Audit report on the Heart of Iowa Regional Transit Agency, Des Moines, Iowa, for the year ended June 30, 2005

Audit report on the Heart of Iowa Regional Transit Agency, Des Moines, Iowa, for the year ended June 30, 2012

Las Topografías médicas burgalesas : 1884-1917. Un intento de contribución a la historia natural, social y sanitaria de la província de Burgos en los siglos XIX y XX

Aquest és un dels treballs de López Gómez que s'insereix en la línia d'estudi de les topografies mèdiques com a material molt útil per al¿estudi de la història de la medicina a nivell local. En aquest cas estudia les topografies mèdiques de la província de Burgos a partir de documents conservats a l¿Arxiu de la Reial Acadèmia de Medicina de Barcelona. També inclou un petit estudi sobre la biografia i obra del doctor Ildefonso Díez Santaolalla (1851-1929).

Introducción a la historia de la psicopatología

Amb aquest llibre l'autora pretèn donar una visió global dels principals aspectes de la història de la psicopatologia.Una visió general dels grans punts de la història de la psicopatologia que, sense deixar de tenir un enfocament complet, sigui breu i concís.