PMID- 18374328 OWN - NLM STAT- MEDLINE DCOM- 20081031 LR - 20240312 IS - 0014-2999 (Print) IS - 0014-2999 (Linking) VI - 585 IP - 1 DP - 2008 May 6 TI - The substrates of memory: defects, treatments, and enhancement. PG - 2-13 LID - 10.1016/j.ejphar.2007.11.082 [doi] AB - Recent work has added strong support to the long-standing hypothesis that the stabilization of both long-term potentiation and memory requires rapid reorganization of the spine actin cytoskeleton. This development has led to new insights into the origins of cognitive disorders, and raised the possibility that a diverse array of memory problems, including those associated with diabetes, reflect disturbances to various components of the same mechanism. In accord with this argument, impairments to long-term potentiation in mouse models of Huntington's disease and in middle-aged rats have both been linked to problems with modulatory factors that control actin polymerization in spine heads. Complementary to the common mechanism hypothesis is the idea of a single treatment for addressing seemingly unrelated memory diseases. First tests of the point were positive: Brain-Derived Neurotrophic Factor (BDNF), a potent activator of actin signaling cascades in adult spines, rescued potentiation in Huntington's disease mutant mice, middle-aged rats, and a mouse model of Fragile-X syndrome. A similar reversal of impairments to long-term potentiation was obtained in middle-aged rats by up-regulating BDNF production with brief exposures to ampakines, a class of drugs that positively modulate AMPA-type glutamate receptors. Work now in progress will test if chronic elevation of BDNF enhances memory in normal animals. FAU - Lynch, Gary AU - Lynch G AD - Department of Psychiatry and Human Behavior, University of California, Irvine CA, United States. FAU - Rex, Christopher S AU - Rex CS FAU - Chen, Lulu Y AU - Chen LY FAU - Gall, Christine M AU - Gall CM LA - eng GR - R01 NS051823/NS/NINDS NIH HHS/United States GR - T32 AG000096-21/AG/NIA NIH HHS/United States GR - R01 NS051823-07/NS/NINDS NIH HHS/United States GR - R01 NS037799-06/NS/NINDS NIH HHS/United States GR - R01 NS037799/NS/NINDS NIH HHS/United States GR - T32 AG000096/AG/NIA NIH HHS/United States GR - P01 NS045260-03/NS/NINDS NIH HHS/United States GR - NS37799/NS/NINDS NIH HHS/United States GR - P01 NS045260-04/NS/NINDS NIH HHS/United States GR - R01 NS037799-07/NS/NINDS NIH HHS/United States GR - T32 AG000258/AG/NIA NIH HHS/United States GR - NS045260/NS/NINDS NIH HHS/United States GR - P01 NS045260/NS/NINDS NIH HHS/United States GR - Z01 AG000258/ImNIH/Intramural NIH HHS/United States GR - NS051823/NS/NINDS NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Review DEP - 20080304 PL - Netherlands TA - Eur J Pharmacol JT - European journal of pharmacology JID - 1254354 RN - 0 (Actins) RN - 0 (Brain-Derived Neurotrophic Factor) RN - 0 (Nootropic Agents) SB - IM MH - Actins/physiology MH - Aging/physiology MH - Animals MH - Brain/physiopathology MH - Brain-Derived Neurotrophic Factor/physiology MH - Cytoskeleton/physiology MH - Dendritic Spines/physiology MH - Fragile X Syndrome/physiopathology MH - Humans MH - Huntington Disease/physiopathology MH - Learning/physiology MH - *Long-Term Potentiation MH - Memory/drug effects/*physiology MH - *Memory Disorders/drug therapy/physiopathology MH - Nootropic Agents/pharmacology/therapeutic use MH - Synapses/physiology PMC - PMC2427007 MID - NIHMS50586 EDAT- 2008/04/01 09:00 MHDA- 2008/11/01 09:00 PMCR- 2009/05/06 CRDT- 2008/04/01 09:00 PHST- 2007/08/28 00:00 [received] PHST- 2007/09/11 00:00 [revised] PHST- 2007/11/29 00:00 [accepted] PHST- 2008/04/01 09:00 [pubmed] PHST- 2008/11/01 09:00 [medline] PHST- 2008/04/01 09:00 [entrez] PHST- 2009/05/06 00:00 [pmc-release] AID - S0014-2999(08)00213-6 [pii] AID - 10.1016/j.ejphar.2007.11.082 [doi] PST - ppublish SO - Eur J Pharmacol. 2008 May 6;585(1):2-13. doi: 10.1016/j.ejphar.2007.11.082. Epub 2008 Mar 4.