Robert Lustig, MD: How Glucose and Fructose Affect the Brain
Lecture excerpt in which Robert Lustig explains MR spectroscopy experiments showing that when glucose and/or fructose are infused, both spectral references appear in the human brain — indicating the brain converts glucose into fructose (citing Rick Johnson, University of Colorado). He also reports CSF-to-plasma data from pregnant women: CSF glucose is approximately half the blood/plasma glucose level, and measurable fructose is present in the brain, attributed to in situ conversion of glucose to fructose.
Questions this video answers
Rick Johnson (University of Colorado).
Approximately 0.5 (CSF glucose is about half the blood/plasma glucose level).
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