The purpose of this research study is to validate (check the accuracy of) laboratory assays, intravenous catheter insertion, and equipment or devices and their reproducibility, which is necessary to perform high quality research on chronic diseases (obesity, pre-diabetes and type-2 diabetes, dyslipidemia, non-alcoholic fatty liver disease, cardiovascular disease, etc.), nutrition, and metabolism (the process by which a substance is handled in your body) at the University of Missouri. As technology changes and we start to use new testing methods, it is necessary to compare results from old tests, equipment and devices and new tests, equipment, or devices and the reproducibility of these measurements to make sure we are getting accurate results. Reproducibility means performing the same test more than once to see if the same results can be achieved each time.
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Validation and reproducibility testing for blood assays
Timeframe: through study completion, an average of 10 weeks
Validation and reproducibility testing for endothelial cell collection
Timeframe: through study completion, an average of 10 weeks
Validation and reproducibility testing for mixed meal ingestion
Timeframe: through study completion, an average of 10 weeks
Validation and reproducibility testing for glucose tolerance testing
Timeframe: through study completion, an average of 10 weeks
Validation and reproducibility testing for DEXA
Timeframe: through study completion, an average of 10 weeks
Validation and reproducibility testing for MRI
Timeframe: through study completion, an average of 10 weeks
Validation and reproducibility testing for MRS
Timeframe: through study completion, an average of 10 weeks