20 research outputs found
Abdominal fat segmentation using T1- and T2*- corrected images and characterization by proton spectroscopy: preliminary study
International audienc
Comparison of 3D spoiled-gradient multiple echo with STEAM for proton density fat fraction and fatty acid composition estimation
International audienceFull abstract available online at:http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/0268.htmlRésumé disponible en ligne : http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/0268.htm
Effect of polyphenols during a high-fat diet enhanced with chemical shift-encoded MRI
International audienceFull abstract available online at:http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/4725.htmlRésumé disponible en ligne : http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/4725.htm
Effect of polyphenols during a high-fat diet enhanced with chemical shift-encoded MRI
International audienceFull abstract available online at:http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/4725.htmlRésumé disponible en ligne : http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/4725.htm
Comparison of 3D spoiled-gradient multiple echo with STEAM for proton density fat fraction and fatty acid composition estimation
International audienceFull abstract available online at:http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/0268.htmlRésumé disponible en ligne : http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/0268.htm
Etude de modèles paramétriques pour l'estimation de la composition lipidique en spectroscopie de résonance magnétique : comparaison théorique des fonctions modèles et application in vivo
International audienc
Etude de modèles paramétriques pour l'estimation de la composition lipidique en spectroscopie de résonance magnétique : comparaison théorique des fonctions modèles et application in vivo
International audienc
Effect of the phase variation induced by eddy currents on localized spectroscopy fatty acid composition quantification and its correction
International audienceFull abstract available online at:http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/3848.htmlRésumé disponible en ligne : http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/3848.htm
Effect of the phase variation induced by eddy currents on localized spectroscopy fatty acid composition quantification and its correction
International audienceFull abstract available online at:http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/3848.htmlRésumé disponible en ligne : http://indexsmart.mirasmart.com/ISMRM2018/PDFfiles/3848.htm
Plasma acyl-ghrelin increases after meal initiation: a new insight
BACKGROUND/OBJECTIVES: Plasma ghrelin secretion over time in humans is characterized by pre-prandial increases and by post-prandial decreases all day long. However, some authors who measured ghrelin concentrations around meals showed a rise in plasma ghrelin concentration after meal initiation followed by the typical post-prandial decrease. In order to confirm this observation that has never been discussed, we described ghrelin profiles around four eating episodes in the morning in adult men.SUBJECTS/METHODS: Twenty normal-weight and 17 obese men were instructed to eat four fixed meals (706 kJ) 10 min long at 0800 h, 0900 h, 1000 h and 1100 h. Using frequent blood sampling, we determined plasma acyl-ghrelin concentrations around those eating episodes. Glucose, insulin and GLP-1 concentrations were also measured.RESULTS: The meals consumption induced a significant increase in plasma acyl-ghrelin concentrations 10 min after meal initiation (P<0.0001): +20.9 +/- 5.8 and +10.7 +/- 3.3 pg/ml in normal-weight and obese subjects for the first meal; +10.4 +/- 3.0 and +5.5 +/- 3.9 pg/ml in normal-weight and obese subjects for the second meal; +12.4 +/- 3.6 and +4.2 +/- 2.1 pg/ml in normal-weight and obese subjects for the third meal; and +4.4 +/- 4.1 and +3.3 +/- 2.61 pg/ml in normal-weight and obese subjects for the fourth meal.CONCLUSIONS: This study is the first to describe and discuss the post-meal initiation ghrelin increase. This finding is consistent in normal-weight and obese individuals