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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
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Deprecated: Implicit conversion from float 229.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Am+J+Reprod+Immunol 2013 ; 70 (3): 213-20 Nephropedia Template TP
Suzuki-Kakisaka H; Sugimoto J; Tetarbe M; Romani AM; Ramirez Kitchen CM; Bernstein HB
Am J Reprod Immunol 2013[Sep]; 70 (3): 213-20 PMID23590581show ga
PROBLEM: Magnesium sulfate (MgSO4 ) exposure reduces the risk of cerebral palsy. As neonatal inflammatory cytokine levels strongly correlate with neurologic outcome, we hypothesize that MgSO4 decreases inflammatory cytokine production. METHOD OF STUDY: We assessed the effect of MgSO4 on cellular magnesium levels, cytokine production, and release within THP-1 and cord blood mononuclear cells. RESULTS: MgSO4 exposure increased intracellular magnesium levels, reducing the frequency of THP-1 cells producing IL-1beta, IL-8, and TNF-alpha following LPS stimulation. Significant reductions in the frequency of neonatal monocytes producing TNF-alpha (48%) and IL-6 (37%) were seen following LPS stimulation, and MgSO4 also significantly decreased the frequency of monocytes producing TNF-alpha (35%) under basal conditions. Decreased cytokine production was confirmed via ELISA, demonstrating a sustained effect and dose response. Magnesium also reduced cytokine production following stimulation with TLR ligands representing obstetrical infections (group B Streptococcus and Mycoplasma) and in preterm neonatal monocytes. CONCLUSION: MgSO4 increases intracellular magnesium, reducing inflammatory cytokine production and release, potentially elucidating the mechanism by which MgSO4 prevents cerebral palsy, eclampsia, and preterm birth.