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Serum magnesium and C-reactive protein levels
  1. M Rodríguez-Morán,
  2. F Guerrero-Romero
  1. Medical Research Unit in Clinical Epidemiology of the Mexican Social Security Institute, and the Research Group on Diabetes and Chronic Illnesses, Durango, Mexico
  1. Fernando Guerrero-Romero, Siqueiros 225 esq./Castañeda, 34000 Durango, Mexico; guerrero_romero{at}hotmail.com

Abstract

Objective: To assess the hypothesis that magnesium deficiency is associated with elevated high-sensitivity C-reactive protein (hsCRP) levels.

Design: Community-based cross-sectional study.

Setting: 488 apparently healthy children aged 10–13 years were randomly enrolled from Durango, a city in northern Mexico, through two-stage cluster sampling.

Main outcome measures: Serum magnesium and hsCRP levels, lipid profile, glucose and insulin levels.

Results: A total of 109 (22.3%) and 101 (20.7%) children had elevated hsCRP concentrations and low serum magnesium levels; among them, 87.1% exhibited both. Children who had both elevated hsCRP levels (2.45 (10.6) mg/l) and hypomagnesemia (1.3 (0.3) mg/dl) exhibit the highest fasting glucose (96.0 (13.9) mg/dl), insulin (13.6 (7.5) μU/ml) and triglycerides (131.5 (43.5) mg/dl) levels as well as the lowest HDL-cholesterol (46.4 (9.0) mg/dl) levels. Adjusted multivariate logistic regression analysis showed a strong association between low serum magnesium and high hsCRP levels (odds ratio 4.1; 95% confidence interval 1.3 to 10.8).

Conclusions: Magnesium depletion is independently associated with elevated hsCRP levels, suggesting that hypomagnesemia and low-grade inflammation are interactive risk factors.

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Footnotes

  • Funding: This work was supported by grants from the Combined Fund CONACYT-State of Durango Government (FOMIX Dgo-2002-C01-3762), the Research Promotion Fund of MSSI (FP 2003/160), and the Mexican Social Security Institute Foundation, Civil Association.

  • Competing interests: None.

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