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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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The effects of growth hormone, thyroxine and insulin on the activities of reduced nicotinamide adenine dinucleotide phosphate dehydrogenase, glucose-6-phosphatase and glycogen phosphorylase in fetal rat liver.

Growth hormone (GH), thyroxine (T4) and insulin were injected, in utero into 20.5 day-old rat fetuses to study the effects of these hormones on the activities of liver NADPH dehydrogenase, glucose-6-phosphatase and glycogen phosphorylase. It was found that at 21.5 days of gestation, GH increases the fetal liver glucose-6-phosphatase activity and decreases the liver glycogen phosphorylase activity. T4 treatment augments the activity of NADPH dehydrogenase even at 0.3% of the dose shown previously to produce premature elevation of activity. Prior to this experiment T4 in large doses has been shown to be capable of elevating glucose-6-phosphatase. However, at the lower T4 dose used, no treatment effect was observed. The fetal rat liver is responsive to insulin at 21.5 days and insulin was able to depress glucose-6-phosphatase activity. Thereby, showing that the influence of insulin on this enzyme begins prior to birth instead of just subsequent to birth.[1]

References

  1. The effects of growth hormone, thyroxine and insulin on the activities of reduced nicotinamide adenine dinucleotide phosphate dehydrogenase, glucose-6-phosphatase and glycogen phosphorylase in fetal rat liver. Porterfield, S.P. Horm. Metab. Res. (1979) [Pubmed]
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