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  Indian J Med Microbiol
 

Figure 1: GR response to GRH administration during T4 therapy (euthyroid) and one-month after stopping T4 treatment (hypothyroid). While mean basal serum GH concentrations were similar in both groups, the serum GH response to GRH was significantly elevated in patients one month after stopping T4 therapy from 15 to 60 min after GRH administration. The mean peak GH concentration after GRH was significantly greater when the patients were short-term hypothyroid, compared when they were euthyroid (e.g. under T4 therapy).

Figure 1: GR response to GRH administration during T4 therapy (euthyroid) and one-month after stopping T4 treatment (hypothyroid). While mean basal serum GH concentrations were similar in both groups, the serum GH response to GRH was significantly elevated in patients one month after stopping T4 therapy from 15 to 60 min after GRH administration. The mean peak GH concentration after GRH was significantly greater when the patients were short-term hypothyroid, compared when they were euthyroid (e.g. under T4 therapy).