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Ecules or to relative reduction in acetylcholinesterase-containing neurons, thus potentiating cholinergic effects. In the present study, no statistical differences were detected among the serotonin levels of the cerebral cortex in the three groups; the control, the leaded and the unleaded. However, in the hypothalamus, hippocampus, cerebellum, the serotonin level was lower in the groups exposed to
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Mor microenvironment and its role in promoting tumor growth. Oncogene. 2008;27(45):5904?2. 52. Zamarron BF, Chen W. Dual roles of immune cells and their factors in cancer development and progression. Int J Biol Sci. 2011;7(5):651?. 53. Hanahan D, Weinberg RA. Hallmarks of cancer: the next generation. Cell. 2011;144(5):646?4. 54. Joven J, Guirro M, Marine-Casado R, Rodriguez-Gallego E, Menendez JA.
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Ither the leaded or unleaded group as compared with the control. On the contrary, dopamine was elevated in the cerebellum of leaded exposed group above both the unleaded gasoline and control. The fluctuations in the levels of dopamine in different brain areas may be related to the effects MMT which is an organic manganese (Mn) compound added to unleaded gasoline and the mechanisms of Mn neurotoxic
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Sulin receptor substrate gene expression, and reduced expression of tau and choline acetyltransferase (ChAT), which are regulated by insulin and IGF-1. In addition, increased levels of 4-hydroxynonenal and nitrotyrosine were measured in cerebella of HFD ?NDEA treated rats, and overall, NDEA+HFD treatment reduced brain levels of Tau, phospho-GSK-3b (reflecting increased GSK-3b activity), glial fibr
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Al microenvironment. Cell Cycle. 2010;9(17):3515?3. 56. Martinez-Outschoorn UE, Balliet RM, Rivadeneira DB, Chiavarina B, Pavlides S, Wang C, et al. Oxidative stress in cancer associated fibroblasts drives tumorstroma co-evolution: A new paradigm for understanding tumor metabolism, the field effect and genomic instability in cancer cells. Cell Cycle. 2010;9(16):3256?6. 57. Chiavarina B, Whitaker-M
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Is the study of Gutteridge and Halliwell [44] showing that Na+, K+-ATPase reduces its activity up to 50 due to oxidative stress. The present findings show that the rats exhibited a decrease in the activity of AChE in the unleaded group in comparison with either the control or the leaded groups. In addition to its function in degrading acetylcholine and modulation of neural function; AChE as a str
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Athione S -transferase activity, and lipid peroxidation was observed in liver and brain. Exposure to toluene, one of the gasoline constituents, both in vivo and in vitro, leads to reactive oxygen species formation in many tissues including brain tissue [36-38]. The study of Calder -Guzm et al [39] revealed that the aldehydes resulting from the oxidation of the methyl groups in the aromatic compou
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N male rats.Parameter Duration of aggression/sec GROUP Control Leaded gasoline Unleaded gasoline Tooth chattering 0.9 ?0.23 4.7 ?1.1 a** 4.4 ?0.92 a* Threat posture 1.5 ?0.54 6 ?1.2 a* 6.2 ?1.31 a* Leaping and biting 1.9 ?0.72 5.5 ?1.45 5.9 ?1.50 Boxing position 1 ?0.42 2.2 ?0.63 2.2 ?0.Values are expressed as means ?SE a: significantly different from the control group. Asterisks indicate the leve