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Editorial

Magnesium Research. Volume 19, Number 3, 153-4, September 2006, Editorial

DOI : 10.1684/mrh.2006.0066

Author(s) : Jean Durlach , Editor-in-Chief, Magnesium Research President, SDRM.

ARTICLE

Auteur(s) : Jean Durlach

Editor-in-Chief, Magnesium Research President, SDRM

The third 2006 issue of volume 19 of Magnesium Research once again illustrates the multidisciplinary nature of the journal.André MAZUR is becoming the new Editor-in-Chief of Magnesium Research. I am very grateful to him to have accepted this heavy duty. I am sure he is highly capable of maintaining the standards I tried to keep and that he is going to open new vistas and to widen the readership of Magnesium Research.This third 2006 issue of Magnesium Research brings together basic and clinical original papers on an international basis.1. One original experimental paper is presented.A.J. Billyard et al. (Provo, UT, USA) showed that a moderate magnesium deficiency in young male rats resulted in a significantly decreased plasma melatonin levels in comparison to the magnesium adequate animals.2. Next come two original clinical papers.S. Daini et al. (Roma, Italy) showed that serum Mg²⁺ levels are significantly higher in patients with heroin dependence and personality disorders as compared with patients with depression comorbidity and without comorbidity.A. Dunicz-Sokolowska et al. (Warsaw, Poland) defined referential values of five bioelements (Ca, Mg, Zn, Cu, Fe) and of two toxic metals (Pb, Cd) in the hair of Polish young persons aged 10-20 years.3. Next come three review papers.F.H. Nielsen et al. (Grand-Forks, ND, USA) updated the relationship between magnesium and exercise. Exercise induces a redistribution of magnesium in the body in order to accomodate metabolic needs: for example strenuous exercise increases urinary and sweat magnesium losses. Marginal magnesium deficiency impairs performance. Increased dietary magnesium intake could be beneficial to physically active individuals with deficient magnesium status.T. Günther (Berlin, Germany) analyzed the mechanisms of the magnesium efflux from erythrocytes. It can be performed by:– the Na⁺-specific Na⁺/Mg²⁺ antiport,– Mg exchange via the unspecific choline exchanger,– Mg efflux accompanied by efflux of intra cellular Cl^- for charge compensation.It can be altered in various pathologic considerations.J.M. Billiard (Paris, France) reviewed forty years of research dedicated to brain ageing: in particular cellular mechanisms involved in memory formation such as calcium-dependent post-burst after polarisation or long lasting synaptic plasticity which are significantly affected with advancing age in parallel to the impairment of cognitive performances. A magnesium deficit is a relevant factor for ageing-associated susceptibility to hippocampus decline.4. The Calendar of Magnesium Meetings and Directions to Contributors followed by the Forthcoming Contents, complete this third 2006 issue of our quarterly international journal Magnesium Research.