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- W3045981304 abstract "Dementia is an ominous neurological disease. Scientists proposed a link between its occurrence and the presence of Toxoplasma gondii ( T. gondii) . The long-term sequels of anti- Toxoplasma premunition, chiefly dominated by TNF- α , on the neurons and their receptors as the insulin-like growth factor-1 receptor (IGF-1R), which is tangled in cognition and synaptic plasticity, are still not clear. IGF-1R mediates its action via IGF-1, and its depletion is incorporated in the pathogenesis of dementia. The activated TNF- α signaling pathway induces NF- κβ that may induce or inhibit neurogenesis. This study speculates the potential impact of anti- Toxoplasma immune response on the expression of IGF-1R in chronic cerebral toxoplasmosis. The distributive pattern of T. gondii cysts was studied in association with TNF- α serum levels, the in situ expression of NF- κβ , and IGF-1R in mice using the low virulent ME-49 T. gondii strain. There was an elevation of the TNF- α serum level (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M1><mml:mi>p</mml:mi></mml:math>value ≤ 0.004) and significant upsurge in NF- κβ whereas IGF-1R was of low abundance (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M2><mml:mi>p</mml:mi></mml:math>value < 0.05) compared to the controls. TNF- α had a strong positive correlation with the intracerebral expression of NF- κβ (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M3><mml:mi>r</mml:mi></mml:math>value ≈ 0.943,<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M4><mml:mi>p</mml:mi></mml:math>value ≈ 0.005) and a strong negative correlation to IGF-1R (<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML id=M5><mml:mi>r</mml:mi></mml:math>value -0.584 and -0.725 for area% and O.D., respectively). This activated TNF- α /NF- κβ keeps T. gondii under control at the expense of IGF-1R expression, depriving neurons of the effect of IGF-1, the receptor’s ligand. We therefore deduce that T. gondii immunopathological reaction may be a road paver for developing dementia." @default.
- W3045981304 created "2020-08-03" @default.
- W3045981304 creator A5044793512 @default.
- W3045981304 creator A5059167201 @default.
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- W3045981304 creator A5073496933 @default.
- W3045981304 creator A5077115301 @default.
- W3045981304 creator A5081757363 @default.
- W3045981304 date "2020-07-30" @default.
- W3045981304 modified "2023-10-16" @default.
- W3045981304 title "Can<i>Toxoplasma gondii</i>Pave the Road for Dementia?" @default.
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