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논문 기본 정보

자료유형
학술저널
저자정보
Lee, Jin Young (Department of Health Science and Technology, Graduate School, SAIHST, Sungkyunkwan University) Jin, Dong-Kyu (Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine)
저널정보
뮤코다당증연구학회 Journal of mucopolysaccharidosis and rare disease Journal of mucopolysaccharidosis and rare disease 제1권 제2호
발행연도
2015.1
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54 - 59 (6page)

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Purpose: Growth hormone (GH) therapy substantially improves several cognitive functions in PWS. However, the molecular mechanisms underlying the beneficial effects of GH on cognition remain unclear in PWS. In this study, we investigated the effects of recombinant human GH on the gene expression of GABAB receptor subunits and GH/insulin-like growth factor (IGF) axis genes in the brain regions of PWS-mimicking mice (Snord116del). Methods: Snord116del mice were injected subcutaneously with 1.0 mg/kg GH or saline, once daily for 7 days. The collected brain tissues were analyzed for mRNA content using quantitative PCR (qPCR) in the cerebellum, hippocampus, and cerebral cortex. Results: GH increased the mRNA expression level of the $GABA_{B1}$ receptor subunit ($GABA_{BR1}$) and IGF-1R in the cerebellum. Furthermore, a significant positive correlation was found between the level of $GABA_{BR1}$ mRNA and the expression of the IGF-1R transcript. GH also induced an increase in the mRNA expression of IGF-2 and IGF-2R in the cerebellum. Conclusion: These data indicate that GH may provide beneficial effects on cognitive function through its influences on the expression of $GABA_{BR1}$ and GH/IGF-1 axis genes in PWS patients.

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