A complex is provided for the treatment of neurogenic conditions having the formula:where R1 isM is a
metal ion Ca(II), Mg(II), Cu(II) or Ni(II); n is an integer 1 or 2; R is BBB
peptide,
transferrin, membrane
transporter peptide, TAT
peptide,
bradykinin, beta-endorphin,
bombesin,
calcitonin,
cholecystokinin, an
enkephalin, dynorphin,
insulin,
gastrin, substance P,
neurotensin,
glucagon,
secretin,
somatostatin,
motilin,
vasopressin,
oxytocin,
prolactin, thyrotropin, an angiotensin, galanin,
neuropeptide Y, thyrotropin-releasing
hormone, gonadotropnin-releasing
hormone,
growth hormone-releasing
hormone,
luteinizing hormone,
vasoactive intestinal peptidegluconate, L-lactate, L-
leucine, L-
tryptophan, and L-glutamate; and R is coupled to M through a
carboxylate moiety.
Magnesium(II) represents the preferred
metal ion as
magnesium is known to have neuroprotective effects. The
metal ion is in part chelated by a non-steroidal anti-inflammatory
drug that does not inhibit
platelet activity and includes salicylate and ibuprofenate. The complex also includes a ligand operative in transport across the
blood brain barrier. A process for making an inventive complex includes the stoichiometric addition of ligands containing
carboxylate groups to a solution of the metal ion. In instances where the metal ion is
magnesium(II), a stoichiometric ratio of 1:1:1 is found between the non-steroidal anti-inflammatory ligand:
magnesium(II):
transporter ligand.