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Expression of IGF-I, IGF-II and IGF-IR mRNAs mRNAs relative to GAPDH mRNA in pooled hind limb muscles from Control mice, mice undernourished from PN1 to PN11 (Early-UN) or PN11 to PN22 (Late-UN), or refed (RF) for 2, 7 or 21 days. mRNA was quantified by TaqMan qRT-PCR. Values are least square means ± SEM; n = 7–8 litters per treatment group.*Significant difference between age-matched groups where age×group is significant.
