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Comparison of stable-isotope-tracer methods for the determination of magnesium absorption in humans
double-labeling methods dysprosium Magnesium absorption
2016/12/30
The double-labeling (DL) method for determining magnesium absorption is less cumbersome than is the fecal monitoring method, which has been used most often, but it has not been validated.
Urea-nitrogen production and salvage are modulated by protein intake in fed humans: results of an oral stable-isotope-tracer protocol and compartmental modeling
stable-isotope-tracer protocol compartmental modeling
2016/12/30
The influence of protein source on postprandial urea kinetics is poorly understood, despite its nutritional significance with respect to nitrogen homeostasis. Furthermore, traditional tracer infusion ...