[1] Louisiana State Univ, Med Ctr, Dept Biochem & Mol Biol, Shreveport, LA 71130 USA
[2] Louisiana State Univ, Med Ctr, Feist Weiller Canc Ctr, Shreveport, LA 71130 USA
[3] Osaka Univ, Sch Med, Dept Neuroanat, Ctr Biomed Res, Suita, Osaka 5650871, Japan
[4] Japan Sci & Technol Corp, CREST, Suita, Osaka 5650871, Japan
[5] Niigata Univ, Brain Res Inst, Dept Neurol, Niigata 951, Japan
[6] Univ Tokyo, Inst Med Sci, Dept Pathol, Tokyo 160, Japan