Several mechanisms of action have been proposed to explain the neuroprotective effects of MgSO4 (Figure 2). Magnesium is a calcium antagonist that acts both intracellularly and extracellularly,68 and may act directly on cerebral endothelial cells.
The claim that Hassan Rouhani, the new president of Iran, is a âmoderate,â with whom Western leaders can do business on the basis of mutual self-interest, brings to mind an earlier fantasy common among elites in the West after the death of the Soviet dictator, Leonid Brezhnev, in 1982: that his successor as General Secretary, Yuri Andropov, was a closet liberal eager to reduce the tensions of the Cold War, then nearly four decades old, and thereby make nuclear war less likely.
Hassan Rouhani holds a key ? but will it open any doors? Photograph: Mana Neyestani/Iranwire.com It was a smart move by the campaign team of Hassan Rouhani to choose a key as the symbol of the politician's endeavour to become Iran's president â and a gift to cartoonists in the wake of a remarkable victory that has created rare optimism at home and abroad about the future of the Islamic republic.