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OBJECTIVES To see if selected clinical factors characterize suicides over the age of 60 differently from younger suicides and to ascertain if those factors characterize female and male suicides over the age of 60 differently. DESIGN A group of consecutive suicides aged 60-88 was compared with groups of consecutive suicides aged 31-59 and 16-30. The female… (More)
The double mutant strain pyr-3 arg-12(s) is a prototroph because a common precursor of arginine and pyrimidine is supplied by the arginine pathway. Growth of this strain is inhibited by exogenous citrulline or arginine. Citrulline-resistant mutants of this strain were selected, and they resulted from modifier mutations at other loci. Forced heterokaryons… (More)
The excessive release of glutamate following brain injury is responsible for the phenomenon of glutamate excitotoxicity, mediated through glutamate receptors, resulting in apoptotic cell death. KDI ameliorates excitotoxicity and regenerates damaged nerve cells.