Neuroprotective gene profile in the brain of magnesium-deficient mice.
BACKGROUND
Magnesium (Mg) deficiency may lead to serious metabolic, biological and organic dysfunctions, and cause various clinical disorders. In the current study, we explore endothelial cell activation, inflammation and cell death induced in the brain of adult mice by Mg-deficient diet.


RESULTS
Neither TNFalpha, substance P, sTNFRI, sTNFRII proteins (ELISA), nor TNFalpha, adherence molecules and prolactin mRNAs, nor NK1R (immunohistochemistry on brain sections) were up-regulated. No inflammatory infiltrates and no apoptotic cells were observed. Using cDNA assay, we showed a neuroprotective, anti-apoptotic and neurotrophic gene expression profile in the brain at early stage of hypomagnesemia. As a model for neuronal injury, mild sound stimulation of Mg-deficient mice without convulsive seizures triggers neither the release of substance P, nor the development of an inflammatory process or cell death in the brain.


CONCLUSIONS
Our results suggest that Mg-deficiency in mice favours the development of a neuroprotective environment in the brain.
German-Fattal
Michèle
M
Université Paris-Sud 11, Faculté de Pharmacie, Châtenay-Malabry Cedex F-92296, France. michele.german@u-psud.fr
Lecerf
Florence
F
Sabbagh
Fadi
F
Maurois
Pierre
P
Durlach
Jean
J
Bac
Pierre
P
D000818:Animals; D017209:Apoptosis; D001921:Brain / Q000378:metabolism*; D005260:Female; D020869:Gene Expression Profiling; D007150:Immunohistochemistry; D007249:Inflammation / Q000209:etiology; D018799:Intercellular Adhesion Molecule-1 / Q000032:analysis / Q000235:genetics; D007376:Interleukin-2 / Q000032:analysis; D008274:Magnesium / Q000378:metabolism; D008275:Magnesium Deficiency / Q000378:metabolism*; D051379:Mice; D011388:Prolactin / Q000235:genetics; D043882:Receptors, Cannabinoid / Q000235:genetics; D016188:Receptors, Granulocyte Colony-Stimulating Factor / Q000235:genetics; D018124:Receptors, Tumor Necrosis Factor / Q000032:analysis
D007376:Interleukin-2; D043882:Receptors, Cannabinoid; D016188:Receptors, Granulocyte Colony-Stimulating Factor; D018124:Receptors, Tumor Necrosis Factor; D018799:Intercellular Adhesion Molecule-1; D011388:Prolactin; D008274:Magnesium