The Age-Related Degeneration of Oligodendrocytes in the Hippocampus of the Senescence-Accelerated Mouse (SAM) P8 : A Quantitative Immunohistochemical Study(Pharmacology)
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概要
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The senescence-accelerated mouse (SAM) is known as a murine model for accelerated aging. The SAMP8 shows age-related deficits of learning and memory at an earlier age than control mice (SAMR1). We investigated the changes in oligodendrocytes in the brain of SAMP8, using immunohistochemistry for myelin basic protein (MBP) and 2′, 3′-cyclic nucleotide 3′-phosphodiesterase (CNP) as an oligodendrocyte marker. SAMP8 at 10 months old showed a decrease in MBP-immunoreactivity (IR) and CNP-IR in the hippocampal CAI subfield, compared with SAMR1. There were no significant differences in MBP and CNP old in the cerebral cortex and the optic tract between SAMR1 and SAMP8 at 10 months. Furthermore, we measured the area of MBP-IR in the CAI subfield of both strains and found that the area of MBP-IR in SAMP8 had decreased progressively with age, compared with SAMR1. These results suggest that age-related degeneration of oligodendrocytes had occurred in the hippocampus of SAMP8.
- 公益社団法人日本薬学会の論文
- 2005-04-01
著者
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OKUMA Yasunobu
Departmen of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University
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NOMURA Yasuyuki
Departmen of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University
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Nomura Yasuyuki
Department Of Pharmacotherapeutics Yokohama College Of Pharmacy
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Okuma Y
Hokkaido Univ. Sapporo Jpn
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TANAKA Jun
Northern Advancement Center for Science and Technology
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TOMOBE Koji
Department of Pharmacology, Graduate School of Pharmaceutical Sciences, Hokkaido University
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Tomobe Koji
Department Of Pharmacology Graduate School Of Pharmaceutical Sciences Hokkaido University
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Okuma Yasunobu
Department Of Pharmacology Faculty Of Pharmaceutical Sciences Chiba Institute Of Sciences
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Okuma Y
Department Of Pharmacology Faculty Of Pharmaceutical Sciences Chiba Institute Of Science
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