Marie-Claude Bertière

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Two experimental situations induce hyperphagia in the rat: the cafeteria model and the tail-pinching model. In non-deprived rats which are offered for one hour a choice of 3 liquid cafeteria items in addition to ordinary chow and water, mild tail-pinching results in a preferential sucrose hyperphagia; naltrexone (2.5 mg/kg IP) suppresses this stress-induced(More)
Hypertriglyceridemia is the most frequent lipid abnormality associated with obesity. Genetic polymorphism of apolipoprotein E (apoE) has been demonstrated to influence lipid levels. We wanted to assess the role of apoE alleles in the hypertriglyceridemias of the obese population. The apoE phenotypes and lipid status were investigated in a population of 172(More)
In this study we have compared the lipoprotein patterns, in particular HDL subfractions, of 34 obese men to those of 34 normoponderal normolipemic men, matched for age and use of tobacco. Obesity was associated with increased VLDL concentrations in only half the subjects. HDL concentrations in all obese subjects were lower than in matched controls. The(More)
Increased postmenopausal bone turnover leads to bone loss and fragility fracture risk. In the absence of osteoporosis, risk preventive measures, particularly those modifying nutritional lifestyle, are appropriate. We tested the hypothesis that milk supplementation affects bone turnover related to biochemical markers in a direction that, in the long term,(More)
To present results from a two year prospective study on diet, 6 months before and 18 months after retirement. The studied population exhibited an increase in social and physical activities over time after retirement. A significant decrease in weight was found in men 18 months after retirement. Retired individuals reported taking more time for breakfast.(More)
We used discontinuous gradients of polyacrylamide gel to determine the high-density-lipoprotein (HDL) subfractions HDL2 and HDL3 of serum lipoproteins. Serum (40 microL) prestained with Sudan Black was electrophoresed in cylindrical tubes over successive layers of 3.5%, 6%, 13%, and 17.5% acrylamide gels in a Tris.glycine buffer (3-4 h, 300 V). Very-low-(More)
BACKGROUND Sarcopenia is increasingly recognized as a correlate of ageing and is associated with increased likelihood of adverse outcomes including falls, fractures, frailty and mortality. Several tools have been recommended to assess muscle mass, muscle strength and physical performance in clinical trials. Whilst these tools have proven to be accurate and(More)
The effects of moderate alcohol intake on the lipoprotein profile were evaluated in 10 normolipemic abstinent male subjects aged 18-21 years. The experimental period lasted 4 weeks during which 30 g of alcohol were ingested daily as red table wine. It was preceded and followed by 3 weeks of total abstinence. Lipoproteins were analyzed by gradient(More)
Two experiments were performed to explore 1) the sexual behavior of male obese cafeteria rats, 2) a possible role of endogenous opiates in the regulation of their sexual behavior. In obese cafeteria rats the proportion of ejaculators and the number of ejaculations per hour were significantly lower compared to controls. Naltrexone provoked an increase in the(More)