Diminished baroreflex sensitivity in the morning negatively influences morning coronary blood flow and blood pressure control in hypertensive patients. Our aim was to determine the contribution of the mechanical and neural components of the cardiac baroreflex to diurnal variation in blood pressure control. In 12 healthy participants, we used the modified Oxford method to quantify baroreflex sen...

1CIMEC-UNL-CONICET, Güemes 3450, CP 3000, Santa Fe, SF, Argentina. 2GIMNI-UTN, Lavaise 610, CP 3000, Santa Fe, SF, Argentina. 3CIMNE, Technical Univ. of Catalonia, Campus Nord UPC, Edifici C-1, J.Girona 1-3, 08034 Barcelona, Spain. 4GIDMA-UTN-FRC/CONICET, Maestro M. Lopez esq. Cruz Roja Argentina, CP X5016ZAA, Córdoba, Cba, Argentina. 5LNCC/MCTI Laboratório Nacional de Computação Cientı́fica, Ge...

Non-human animals are frequently the research subjects in a variety of areas, particularly in the life sciences. In 1997, the Canadian Council of Animal Care reported that 1 474 611 non-human animals were tested as part of research, testing, and teaching in Canada, a reduction from the 2 075 923 non-human animals that were tested in 1985. Most of these were tested as part of basic research in t...

The nutritional factors which affect lead absorption have been studied. Synthetic diets of known composition were compounded to contain 0-075% Pb as PbCl2 labelled with 203Pb. Rats were exposed to lead for periods of 48 hr. The dietary intake was then measured and the absorption of lead determined by means of a whole-body counter. Lead absorption was increased by high fat, low mineral, low prot...