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- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국응용약물학회 The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology The journal of applied pharmacology : the official journal of the Korean Society of Applied Pharmacology 제15권 제2호
- 발행연도
- 2007.1
- 수록면
- 73 - 77 (5page)
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N,N-Dimethyl-D-ribo-phytosphingosine (DMPH) is an N-methyl derivative of sphingosine. In the present paper, we studied effects of DMPH on intracellular Ca$^{2+}$ concentration, pH, glutamate uptake, and cell viability in human 1321N1 astrocytes. DMPH increased intracellular Ca$^{2+}$ concentration and cytosolic pH significantly in a dose-dependent manner. DMPH also inhibited glutamate uptake by 1321N1 astrocytes. Finally, treatment of cells with DMPH for 24 h reduced viability of cells largely and concentration-dependently. In summary, DMPH increased intracellular Ca$^{2+}$ concentration and pH, inhibited glutamate uptake and evoked cytotoxicity in 1321N1 astrocytes. Our observations with DMPH in the 1321N1 astrocytes would enhance understanding of DMPH actions in the brain.
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