Biomedical subjects

E Pallier

Publications and source records attributed to E Pallier.

4 recordsLinked to original sources

PubMed2005

Composition and dynamics of plasma in Saturn's magnetosphere.

During Cassini's initial orbit, we observed a dynamic magnetosphere composed primarily of a complex mixture of water-derived atomic and molecular ions. We have identified four distinct regions characterized by differences in both bulk plasma properties and ion composition. Protons are the dominant species outside about 9 RS (where RS is the radial distance from the center of Saturn), whereas inside, the plasma consists primarily of a corotating comet-like mix of water-derived ions with approximately 3% N+. Over the A and B rings, we found an ionosphere in which O2+ and O+ are dominant, which suggests the possible existence of a layer of O2 gas similar to the atmospheres of Europa and Ganymede.

Atmosphere↗

PubMed1985

Human and animal fat cell size determination using an image analyzing computer.

An automatization of the fat cell's morphological parameters determination with an image analyzing computer is proposed. The results obtained with this technique are compared to results obtained from the usual methods. Combined with frozen cut slices of adipose tissue, this automatized determination of fat cell size is well adapted for the large number of samples necessary for a specialized hospital service.

Adipose Tissue↗

PubMed1983

Effects of medium- and long-chain triacylglycerols on adipose tissue metabolism in the obese Zucker rat.

The influence of a diet including 18 per cent by weight of long-chain (LCT) or medium-chain (MCT) triacylglycerols on adipose tissue development, and on in-vitro adipose tissue triacylglycerol (TG) synthesis from glucose and palmitic acid, was studied using genetically obese, fa/fa, and control, Fa/-, Zucker rats. The adipose tissue mass was greater with the LCT diet than with either the MCT or control diets, but there was no significant difference between the MCT and control diets. TG synthesis from labelled substrates was not modified by the MCT diet when compared with the control, but was decreased by the LCT diet. The results suggested that the use of MCT in treating human obesity would necessitate levels too high to be therapeutically practical.

Adipose Tissue↗

PubMed1980

Effect of diet and ovariectomy on adipose tissue cellularity in mice.

Three-week old female mice were ovariectomized. From weaning at 4 weeks they were fed either a control or a high fat diet. When 32 weeks old, the ovariectomized mice weighed more than the sham-operated ones, whichever diet they were fed. Food intake decreased 140 days after castration. Ovariectomized mice fed the control diet showed fat cell hypertrophy at three sites and hyperplasia of the perirenal tissue. In mice fed the fat-rich diet, ovariectomy only caused further hypertrophy in the subcutaneous and perirenal adipose tissue.

Adipose Tissue↗