Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum
Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylas...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Iba, Michael M. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2003 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag 2003 |
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| Übergeordnetes Werk: |
Enthalten in: Archives of toxicology - Berlin : Springer, 1930, 77(2003), 10 vom: 11. Juli, Seite 547-554 |
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| Übergeordnetes Werk: |
volume:77 ; year:2003 ; number:10 ; day:11 ; month:07 ; pages:547-554 |
| Links: |
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| DOI / URN: |
10.1007/s00204-003-0488-1 |
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| Katalog-ID: |
SPR001816462 |
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| 100 | 1 | |a Iba, Michael M. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum |
| 264 | 1 | |c 2003 | |
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| 520 | |a Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. | ||
| 650 | 4 | |a Cytochrome P450 1A1 (CYP1A1) |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Cytochrome P450 1A2 (CYP1A2) |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Brain |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Cerebral cortex |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Cerebellum |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a β-Naphthoflavone |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Ethoxyresorufin |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a -deethylase (EROD) |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Methoxyresorufin |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a -demethylase (MROD) |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Storch, Amijoy |4 aut | |
| 700 | 1 | |a Ghosal, Anima |4 aut | |
| 700 | 1 | |a Bennett, Susan |4 aut | |
| 700 | 1 | |a Reuhl, Kenneth R. |4 aut | |
| 700 | 1 | |a Lowndes, Herbert E. |4 aut | |
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10.1007/s00204-003-0488-1 doi (DE-627)SPR001816462 (SPR)s00204-003-0488-1-e DE-627 ger DE-627 rakwb eng Iba, Michael M. verfasserin aut Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. Cytochrome P450 1A1 (CYP1A1) (dpeaa)DE-He213 Cytochrome P450 1A2 (CYP1A2) (dpeaa)DE-He213 Brain (dpeaa)DE-He213 Cerebral cortex (dpeaa)DE-He213 Cerebellum (dpeaa)DE-He213 β-Naphthoflavone (dpeaa)DE-He213 Ethoxyresorufin (dpeaa)DE-He213 -deethylase (EROD) (dpeaa)DE-He213 Methoxyresorufin (dpeaa)DE-He213 -demethylase (MROD) (dpeaa)DE-He213 Storch, Amijoy aut Ghosal, Anima aut Bennett, Susan aut Reuhl, Kenneth R. aut Lowndes, Herbert E. aut Enthalten in Archives of toxicology Berlin : Springer, 1930 77(2003), 10 vom: 11. Juli, Seite 547-554 (DE-627)25339015X (DE-600)1458459-1 1432-0738 nnns volume:77 year:2003 number:10 day:11 month:07 pages:547-554 https://dx.doi.org/10.1007/s00204-003-0488-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 77 2003 10 11 07 547-554 |
| spelling |
10.1007/s00204-003-0488-1 doi (DE-627)SPR001816462 (SPR)s00204-003-0488-1-e DE-627 ger DE-627 rakwb eng Iba, Michael M. verfasserin aut Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. Cytochrome P450 1A1 (CYP1A1) (dpeaa)DE-He213 Cytochrome P450 1A2 (CYP1A2) (dpeaa)DE-He213 Brain (dpeaa)DE-He213 Cerebral cortex (dpeaa)DE-He213 Cerebellum (dpeaa)DE-He213 β-Naphthoflavone (dpeaa)DE-He213 Ethoxyresorufin (dpeaa)DE-He213 -deethylase (EROD) (dpeaa)DE-He213 Methoxyresorufin (dpeaa)DE-He213 -demethylase (MROD) (dpeaa)DE-He213 Storch, Amijoy aut Ghosal, Anima aut Bennett, Susan aut Reuhl, Kenneth R. aut Lowndes, Herbert E. aut Enthalten in Archives of toxicology Berlin : Springer, 1930 77(2003), 10 vom: 11. Juli, Seite 547-554 (DE-627)25339015X (DE-600)1458459-1 1432-0738 nnns volume:77 year:2003 number:10 day:11 month:07 pages:547-554 https://dx.doi.org/10.1007/s00204-003-0488-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 77 2003 10 11 07 547-554 |
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10.1007/s00204-003-0488-1 doi (DE-627)SPR001816462 (SPR)s00204-003-0488-1-e DE-627 ger DE-627 rakwb eng Iba, Michael M. verfasserin aut Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. Cytochrome P450 1A1 (CYP1A1) (dpeaa)DE-He213 Cytochrome P450 1A2 (CYP1A2) (dpeaa)DE-He213 Brain (dpeaa)DE-He213 Cerebral cortex (dpeaa)DE-He213 Cerebellum (dpeaa)DE-He213 β-Naphthoflavone (dpeaa)DE-He213 Ethoxyresorufin (dpeaa)DE-He213 -deethylase (EROD) (dpeaa)DE-He213 Methoxyresorufin (dpeaa)DE-He213 -demethylase (MROD) (dpeaa)DE-He213 Storch, Amijoy aut Ghosal, Anima aut Bennett, Susan aut Reuhl, Kenneth R. aut Lowndes, Herbert E. aut Enthalten in Archives of toxicology Berlin : Springer, 1930 77(2003), 10 vom: 11. Juli, Seite 547-554 (DE-627)25339015X (DE-600)1458459-1 1432-0738 nnns volume:77 year:2003 number:10 day:11 month:07 pages:547-554 https://dx.doi.org/10.1007/s00204-003-0488-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 77 2003 10 11 07 547-554 |
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10.1007/s00204-003-0488-1 doi (DE-627)SPR001816462 (SPR)s00204-003-0488-1-e DE-627 ger DE-627 rakwb eng Iba, Michael M. verfasserin aut Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. Cytochrome P450 1A1 (CYP1A1) (dpeaa)DE-He213 Cytochrome P450 1A2 (CYP1A2) (dpeaa)DE-He213 Brain (dpeaa)DE-He213 Cerebral cortex (dpeaa)DE-He213 Cerebellum (dpeaa)DE-He213 β-Naphthoflavone (dpeaa)DE-He213 Ethoxyresorufin (dpeaa)DE-He213 -deethylase (EROD) (dpeaa)DE-He213 Methoxyresorufin (dpeaa)DE-He213 -demethylase (MROD) (dpeaa)DE-He213 Storch, Amijoy aut Ghosal, Anima aut Bennett, Susan aut Reuhl, Kenneth R. aut Lowndes, Herbert E. aut Enthalten in Archives of toxicology Berlin : Springer, 1930 77(2003), 10 vom: 11. Juli, Seite 547-554 (DE-627)25339015X (DE-600)1458459-1 1432-0738 nnns volume:77 year:2003 number:10 day:11 month:07 pages:547-554 https://dx.doi.org/10.1007/s00204-003-0488-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 77 2003 10 11 07 547-554 |
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10.1007/s00204-003-0488-1 doi (DE-627)SPR001816462 (SPR)s00204-003-0488-1-e DE-627 ger DE-627 rakwb eng Iba, Michael M. verfasserin aut Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum 2003 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2003 Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. Cytochrome P450 1A1 (CYP1A1) (dpeaa)DE-He213 Cytochrome P450 1A2 (CYP1A2) (dpeaa)DE-He213 Brain (dpeaa)DE-He213 Cerebral cortex (dpeaa)DE-He213 Cerebellum (dpeaa)DE-He213 β-Naphthoflavone (dpeaa)DE-He213 Ethoxyresorufin (dpeaa)DE-He213 -deethylase (EROD) (dpeaa)DE-He213 Methoxyresorufin (dpeaa)DE-He213 -demethylase (MROD) (dpeaa)DE-He213 Storch, Amijoy aut Ghosal, Anima aut Bennett, Susan aut Reuhl, Kenneth R. aut Lowndes, Herbert E. aut Enthalten in Archives of toxicology Berlin : Springer, 1930 77(2003), 10 vom: 11. Juli, Seite 547-554 (DE-627)25339015X (DE-600)1458459-1 1432-0738 nnns volume:77 year:2003 number:10 day:11 month:07 pages:547-554 https://dx.doi.org/10.1007/s00204-003-0488-1 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OLC-PHA GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2360 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 77 2003 10 11 07 547-554 |
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Enthalten in Archives of toxicology 77(2003), 10 vom: 11. Juli, Seite 547-554 volume:77 year:2003 number:10 day:11 month:07 pages:547-554 |
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Enthalten in Archives of toxicology 77(2003), 10 vom: 11. Juli, Seite 547-554 volume:77 year:2003 number:10 day:11 month:07 pages:547-554 |
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Cytochrome P450 1A1 (CYP1A1) Cytochrome P450 1A2 (CYP1A2) Brain Cerebral cortex Cerebellum β-Naphthoflavone Ethoxyresorufin -deethylase (EROD) Methoxyresorufin -demethylase (MROD) |
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Iba, Michael M. @@aut@@ Storch, Amijoy @@aut@@ Ghosal, Anima @@aut@@ Bennett, Susan @@aut@@ Reuhl, Kenneth R. @@aut@@ Lowndes, Herbert E. @@aut@@ |
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2003-07-11T00:00:00Z |
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In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. 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|
| author |
Iba, Michael M. |
| spellingShingle |
Iba, Michael M. misc Cytochrome P450 1A1 (CYP1A1) misc Cytochrome P450 1A2 (CYP1A2) misc Brain misc Cerebral cortex misc Cerebellum misc β-Naphthoflavone misc Ethoxyresorufin misc -deethylase (EROD) misc Methoxyresorufin misc -demethylase (MROD) Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum |
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Iba, Michael M. |
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keep |
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aut aut aut aut aut aut |
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springer |
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true |
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1432-0738 |
| topic_title |
Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum Cytochrome P450 1A1 (CYP1A1) (dpeaa)DE-He213 Cytochrome P450 1A2 (CYP1A2) (dpeaa)DE-He213 Brain (dpeaa)DE-He213 Cerebral cortex (dpeaa)DE-He213 Cerebellum (dpeaa)DE-He213 β-Naphthoflavone (dpeaa)DE-He213 Ethoxyresorufin (dpeaa)DE-He213 -deethylase (EROD) (dpeaa)DE-He213 Methoxyresorufin (dpeaa)DE-He213 -demethylase (MROD) (dpeaa)DE-He213 |
| topic |
misc Cytochrome P450 1A1 (CYP1A1) misc Cytochrome P450 1A2 (CYP1A2) misc Brain misc Cerebral cortex misc Cerebellum misc β-Naphthoflavone misc Ethoxyresorufin misc -deethylase (EROD) misc Methoxyresorufin misc -demethylase (MROD) |
| topic_unstemmed |
misc Cytochrome P450 1A1 (CYP1A1) misc Cytochrome P450 1A2 (CYP1A2) misc Brain misc Cerebral cortex misc Cerebellum misc β-Naphthoflavone misc Ethoxyresorufin misc -deethylase (EROD) misc Methoxyresorufin misc -demethylase (MROD) |
| topic_browse |
misc Cytochrome P450 1A1 (CYP1A1) misc Cytochrome P450 1A2 (CYP1A2) misc Brain misc Cerebral cortex misc Cerebellum misc β-Naphthoflavone misc Ethoxyresorufin misc -deethylase (EROD) misc Methoxyresorufin misc -demethylase (MROD) |
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Elektronische Aufsätze Aufsätze Elektronische Ressource |
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Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum |
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Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum |
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Iba, Michael M. Storch, Amijoy Ghosal, Anima Bennett, Susan Reuhl, Kenneth R. Lowndes, Herbert E. |
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constitutive and inducible levels of cyp1a1 and cyp1a2 in rat cerebral cortex and cerebellum |
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Constitutive and inducible levels of CYP1A1 and CYP1A2 in rat cerebral cortex and cerebellum |
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Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. © Springer-Verlag 2003 |
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Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. © Springer-Verlag 2003 |
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Abstract We examined the constitutive and inducible levels of microsomal cytochromes P450 1A1 and 1A2 (CYP1A) in rat cerebral cortex and cerebellum at the level of proteins by western blot analysis, and by catalytic activities via ethoxyresorufin O-deethylase (EROD) and methoxyresorufin O-demethylase (MROD). In the cerebral cortex, cytochrome P450 1A1 (CYP1A1) protein was more abundant than cytochrome P450 1A2 (CYP1A2) protein. Treatment with β-naphthoflavone (β-NF) caused a slight decrease in the level of the former but induced the latter 5.8-fold. In the cerebellum, in contrast to the cerebral cortex, CYP1A1 protein was less abundant than CYP1A2 protein in untreated rats, and while β-NF treatment caused a 3.3-fold induction of CYP1A1 protein, it resulted in a 10-fold decrease in CYP1A2 protein. The CYP1A-preferential activity EROD was 2.3-fold higher in the cerebellum than in the cerebral cortex, and was induced 1.5-fold and 1.9-fold in the cerebellum and cerebral cortex, respectively, by β-NF treatment. The CYP1A2-preferential activity MROD was 3-fold higher in the cerebellum than in the cerebral cortex, and was repressed 2.2-fold in the cerebellum but induced 3.7-fold in the cerebral cortex following β-NF treatment. The results show that CYP1A1 and CYP1A2 proteins and catalytic activities are constitutively expressed in brain but are differentially inducible in the rat cerebral cortex and cerebellum. © Springer-Verlag 2003 |
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| score |
7.400876 |