Title : Sex differences in acclimation of hypothalamic arcuate glucokinase gene and protein expression to repeated intermediate insulin administration.

Pub. Date : 2009

PMID : 19279382






3 Functional Relationships(s)
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1 Acute NPH injection had no impact on GK gene profiles in estradiol benzoate (EB)- or oil-implanted ovariectomized (OVX) female rats, but diminished GK-ir cell counts in the OVX + EB caudal ARH. Insulin, Isophane glucokinase Rattus norvegicus
2 Precedent NPH treatment did not modify baseline GK mRNA levels in either group of females, but resulted in decreased or elevated GK gene and protein expression during recurring injection in the presence or absence of EB, respectively. Insulin, Isophane glucokinase Rattus norvegicus
3 CONCLUSION: These results provide novel evidence for sex-specific patterns of acclimation of GK mRNA and protein expression within the rat ARH to serial NPH injection, and support the need to elucidate the physiological ramifications of these adaptations regarding behavioral and physiological responses to recurring intermediate insulin administration. Insulin, Isophane glucokinase Rattus norvegicus