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20250211014137.0 |
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tu |
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231223s2009 xx ||||| 00| ||chi c |
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|a pubmed25n0644.xml
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|a (DE-627)NLM193184184
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|a (NLM)19951519
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a chi
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| 100 |
1 |
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|a He, Ya-Fang
|e verfasserin
|4 aut
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| 245 |
1 |
0 |
|a Effect of 1400W, an inhibitor of inducible nitric oxide synthetase, on blocking the toxicity of lipopolysaccharide-induced activated microglia to preoligodendrocytes
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| 264 |
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1 |
|c 2009
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 02.12.2010
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| 500 |
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|a Date Revised 07.06.2016
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|a published: Print
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|a Citation Status MEDLINE
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| 520 |
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|a OBJECTIVE: To explore the toxicity of LPS-induced activated microglia to preoligodendrocytes (preOLs) and the effect of 1400W, a selective inhibitor of inducible nitric oxide synthetase (iNOS), on the blockage of the toxicity
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|a METHODS: Co-cultured microglia and preOLs obtained from two-day-old Sprague-Dawley (SD) rats were divided into three groups: co-culture control group, co-culture LPS group and co-culture LPS plus 1400W group. After cultured cells were induced by LPS (100 ng/ml) for 48 hours, the concentration of nitric oxide (NO) was measured by nitric acid-oeoxidize-colorimetry, the level of peroxynitrite (ONOO(-)) was determined by immunocytochemistry, and the synthetic level of iNOS was detected by Western blotting, respectively. The morphologic observation of apoptotic preOLs stained with Hoechst 33342/PI and the apoptotic rate of preOLs detected by flow cytometry were processed simultaneously. Data were analyzed with SPSS 11.0 software
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| 520 |
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|a RESULTS: Compared to co-culture control group, there was significant increase in levels of NO [(82.27+/-3.41) micromol/L vs. (167.86+/-9.87) micromol/L, t=8.593, P<0.01], ONOO(-)[(6.14+/-1.27) x 10(7)/L vs. (34.38+/-7.75) x 10(7)/L, t=5.892, P<0.01], and iNOS [(0.18+/-0.027) vs. (0.79+/-0.068), t=9.26, P<0.01] induced by LPS in co-culture LPS group, and with a higher apoptotic rate of preOLs [(6.73+/-1.39)% vs. (24.77+/-2.05)%, t=12.619, P<0.01]. However, all levels of NO [(69.55+/-5.07) micromol/L, t=8.896, P<0.01], ONOO(-) [(10.33+/-3.47) x 10(7)/L, t=14.96, P<0.01] and iNOS (0.35+/-0.042, t=5.506, P<0.01) decreased significantly with the use of 1400W at a dose of 10 micromol/L in co-culture LPS plus 1400W group, and the apoptotic rate of preOLs [(11.8+/-2.06)%, t=7.715, P<0.01] was also reduced evidently
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|a CONCLUSIONS: NO, ONOO(-) and iNOS, etc. play important roles in the death pathway of preOLs induced by LPS. 1400W can block effectively the toxicity of LPS-activated microglia toxicity to preOLs through inhibiting iNOS selectively and reducing the production of NO and ONOO(-), and improve the survival rate of preOLs
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| 650 |
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|a English Abstract
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|a Journal Article
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 650 |
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7 |
|a Amidines
|2 NLM
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| 650 |
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7 |
|a Benzylamines
|2 NLM
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| 650 |
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7 |
|a Lipopolysaccharides
|2 NLM
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| 650 |
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7 |
|a N-(3-(aminomethyl)benzyl)acetamidine
|2 NLM
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| 650 |
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7 |
|a Nitric Oxide
|2 NLM
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| 650 |
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7 |
|a 31C4KY9ESH
|2 NLM
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| 650 |
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7 |
|a Nitric Oxide Synthase
|2 NLM
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| 650 |
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7 |
|a EC 1.14.13.39
|2 NLM
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| 700 |
1 |
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|a Chen, Hui-Jin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qian, Long-Hua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Guan-Yi
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Zhonghua er ke za zhi = Chinese journal of pediatrics
|d 1960
|g 47(2009), 7 vom: 02. Juli, Seite 537-43
|w (DE-627)NLM136249191
|x 0578-1310
|7 nnns
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| 773 |
1 |
8 |
|g volume:47
|g year:2009
|g number:7
|g day:02
|g month:07
|g pages:537-43
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|d 47
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|h 537-43
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