To evaluate methionine requirement when cystine is provided by diet. Methionine balance (at requirement intake) will be compared with lower methionine intake plus cystine. By administering orally multi-labeled isotopes of methionine and cysteine, the investigators will be able to obtain information on methionine-cystine cycle and further investigate the cystine sparing role in methionine utilization. During an additional tracer study, tracers will be infused, I.V., to provide information related to the obligatory oxidative losses of methionine and to the efficiency of the utilization of methionine by the human body.

Project Start
1997-03-20
Project End
1997-11-30
Budget Start
1996-10-01
Budget End
1997-09-30
Support Year
34
Fiscal Year
1997
Total Cost
Indirect Cost
Name
Massachusetts Institute of Technology
Department
Type
DUNS #
City
Cambridge
State
MA
Country
United States
Zip Code
02139
Raboud, Janet M; Diong, Christina; Carr, Andrew et al. (2010) A meta-analysis of six placebo-controlled trials of thiazolidinedione therapy for HIV lipoatrophy. HIV Clin Trials 11:39-50
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Bandini, L G; Must, A; Naumova, E N et al. (2008) Change in leptin, body composition and other hormones around menarche--a visual representation. Acta Paediatr 97:1454-9
Thadhani, Ravi (2008) Activated vitamin D sterols in kidney disease. Lancet 371:542-4
Must, Aviva; Bandini, Linda G; Tybor, David J et al. (2007) Activity, inactivity, and screen time in relation to weight and fatness over adolescence in girls. Obesity (Silver Spring) 15:1774-81
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Spadano, Jennifer L; Bandini, Linda G; Must, Aviva et al. (2005) Longitudinal changes in energy expenditure in girls from late childhood through midadolescence. Am J Clin Nutr 81:1102-9
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Schurgin, Sunita; Dolan, Sara; Perlstein, Ari et al. (2004) Effects of testosterone administration on growth hormone pulse dynamics in human immunodeficiency virus-infected women. J Clin Endocrinol Metab 89:3290-7

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