PubMed Health⌕ Search

Biomedical subjects

G Chiodini

Publications and source records attributed to G Chiodini.

At least 19 recordsLinked to original sources
PubMed2005

Measurement of the D(s)+ lifetime.

A high statistics measurement of the D(s)+ lifetime from the Fermilab fixed-target FOCUS photoproduction experiment is presented. We describe the analysis of the two decay modes, D(s)+ --> phi(1020)pi+ and D(s)+ -->K*(892)0K+, used for the measurement. The measured lifetime is 507.4 +/- 5.5(stat) +/- 5.1(syst) fs using 8961 +/- 105 D(s)+ --> phi(1020)pi+ and 4680 +/- 90 D(s)+ --> K*(892)0K+ decays. This is a significant improvement over the present world average.

Journal Article↗
PubMed1989

Nutritional status and body composition of adolescent female gymnasts.

Nutritional status and body composition of 26 young female gymnasts (average age 12 years) were studied. The body fat percentage (15% of total body weight) is low, still consistent with an excellent health. The caloric intake is lower (1552 kcal/day) than that recommended for their age group, however it is still within the standard by body weight (43 kcal/kg). They show and insufficient assumption of carbohydrates (47.7%), mineral salts and vitamins, so that a more detailed alimentary information is required in order to avoid undesired consequences on sport performance and growth rate.

Body Composition↗
PubMed1984

Effects of physical activity and diet on lipemic risk factors for atherosclerosis in women.

Serum lipoproteins were studied in active and sedentary young women. The groups were matched for age, body weight, and blood pressure. A quantitative and qualitative evaluation of the diet was performed. In spite of a higher intake of saturated fat and cholesterol, serum concentrations of triglyceride, total cholesterol, and low-density lipoprotein cholesterol in the active group were not significantly different from the controls. Nevertheless, high-density lipoprotein cholesterol (HDL-C) levels were significantly higher in the active subjects even after covariance adjustment for nutrient intake; therefore, the HDL-C increase seems to depend on physical activity "per se" rather than on differences in diet.

Adult↗
PubMed1982

[Evaluation of the accuracy of precipitation methods for HDL cholesterol determination].

Several methods for HDL-Cholesterol determination have been proposed; the over-floating cholesterol evaluation after non-HDL lipoproteins precipitation by polyanions with bivalent cations or neutral polymers is practical and not expensive, but it's accuracy and precision must be strictly control led. The Authors, after a review and a quality-check of the most used methods, conclude that the best accuracy for HDL-Cholesterol determination is provided by Dextransulphate-Mg-chloride and Phosphotungstate-Mg-chloride at pH 7,5.

Chemical Phenomena↗
PubMed1982

[Relationships between programmed physical activity and risk factors in atherosclerosis].

The lipidemic pattern has been evaluated in 40 systematically trained subjects and in 43 subjects of same age and BMI sedentary ones. The mean CT concentration of active subjects was not different from that of the sedentary group, whereas HDL-C was significantly higher and TG significantly lower, CT/HDL-C was significantly lower in active subjects. The obtained results show that systematic physical activity, even if not at agonistic level, can induce antiatherogenic modifications of the lipidemic pattern.

Adult↗
PubMed1982

[Influence of alcohol intake and smoking on plasma HDL cholesterol in active and sedentary subjects].

The effect of physical activity, of smoking habit and alcohol assumption on plasma HDL-cholesterol has been evaluated in 40 normolipidaemic male active subjects and in 43 non-active ones. The comparison have been performed after covariance adjustment for potentially confounding variables. Physical activity increases and smoking habit decreases HDL-cholesterol plasma levels; no effects depending on alcohol consumption have been found.

Adult↗
PubMed1979

[Preliminary considerations on the behavior of single plasmatic free fatty acids in obese subjects exposed to lipolytic stimulus before and after a period of caloric restriction].

The compositions of the plasma free fatty acid picture changes in relation of the metabolic situation, which is not that theoretically predictable from the adipocyte triglycerides. After a meal, this is due to the existence of a labile storage pool, which derives its features directly from those of the food lipids. In the fasting subject, when this compartment has exhausted its remains, the failure of the NEFA picture to correspond to that of the fats constituting the stabel pool may be attributable to selective release, or to preferential utilisation of each fatty acid. Analysis of the composition performed a very short time after a supramaximal lipolytic stimulus, i.e. when the release of fatty acids surpasses their peripheral removal, by confirming the differences noted under basal conditions, suggests that the first theory used to explain the phenomenon is most likely the correct one.

Adult↗