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D the colour was developed upon the addition of DTNB - Phosphate - ethanol reagent. The colour was then read immediately at 412 nm and the enzyme activity was determined in M per SH group (MSH) from a standard curve.Determination of total proteins The total protein content was determined according to the method described by Lowry et al. [32]. This method is based on the reaction between the trypto
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D the colour was developed upon the addition of DTNB - Phosphate - ethanol reagent. The colour was then read immediately at 412 nm and the enzyme activity was determined in M per SH group (MSH) from a standard curve.Determination of total proteins The total protein content was determined according to the method described by Lowry et al. [32]. This method is based on the reaction between the trypto
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Le of the assay depends on the incubation of adenosine triphosphate with the tissue-containing enzyme and the determination of liberated inorganic phosphorus as modified by El-Aaser and El-Merzabani [33]. Statistical analysis The data were subjected to statistical analysis using one way ANOVA. SPSS for Windows software, Release 11.0 (SPSS, Chicago, IL) was used.ResultsData in table 1 show that the
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D the colour was developed upon the addition of DTNB - Phosphate - ethanol reagent. The colour was then read immediately at 412 nm and the enzyme activity was determined in M per SH group (MSH) from a standard curve.Determination of total proteins The total protein content was determined according to the method described by Lowry et al. [32]. This method is based on the reaction between the trypto
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Le of the assay depends on the incubation of adenosine triphosphate with the tissue-containing enzyme and the determination of liberated inorganic phosphorus as modified by El-Aaser and El-Merzabani [33]. Statistical analysis The data were subjected to statistical analysis using one way ANOVA. SPSS for Windows software, Release 11.0 (SPSS, Chicago, IL) was used.ResultsData in table 1 show that the
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Le of the assay depends on the incubation of adenosine triphosphate with the tissue-containing enzyme and the determination of liberated inorganic phosphorus as modified by El-Aaser and El-Merzabani [33]. Statistical analysis The data were subjected to statistical analysis using one way ANOVA. SPSS for Windows software, Release 11.0 (SPSS, Chicago, IL) was used.ResultsData in table 1 show that the
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Oline Norepinephrine 0.115 ?0.031 0.11 ?0.013 0.076 ?0.0038 a** b** Dopamine 2.68 ?0.27 1.136 ?0.29 a*** 1.61 ?0.28 a*** b* Serotonin 0.822 ?0.047 0.50 ?0.075 a*** 0.49 ?0.13 a***Values are expressed as means ?SD a: significantly different from the control group. b: significantly different from the leaded gasoline. Asterisks indicate the level of significance (* P < 0.05; ** P 0.01; *** P < 0.001.
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Up as compared with the corresponding values of the control. Data presented in tables 3 show that the rats exposed to the two types of vapours encountered a significant decrease in the norepinephrine, dopamine and serotonin contents of the hippocampus as compared with the control group. On other hand, no significant changes were found in norepinephrine and serotonin between the leaded or the unlea