We acknowledge the following for financial support:
NIH Grant MH 068817, Memory Pharmaceuticals Inc.
and the Alfred Bader Foundation (to S.J.). We are
grateful to Pharmanex for BioGinkgo 27/7, Dr. Dirk
A. Lichtblau for preparation of enriched TTLs extract,
Mr. Aaron Aylor for laboratory assistance, Professor
John M. Berger, Montclair State University, NJ, for discussions,
and Dr. Yasuhiro Itagaki for measurements of
mass spectra.