Cognition-enhancing and neuroprotective activities of the standardized extract of Betula platyphylla bark and its major diarylheptanoids

Ki Yong Lee, Eun Ju Jeong, Jungmoo Huh, Namki Cho, Tae Bum Kim, Byung Ju Jeon, Seung Hyun Kim, Hong Pyo Kim, Sang Hyun Sung

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Diarylheptanoids have been the center of the intensive research efforts for Alzheimer's disease and other neurodegenerative diseases. The present study aimed to determine the effect of the standardized extract of B. platyphylla bark and its major diarylheptanoids in scopolamine-induced amnesic mice through cyclic AMP response element-binding protein (CREB) activation. Oral administration of the standardized extract of B. platyphylla bark (100 mg/kg body weight), aceroside VIII (1 mg/kg body weight) and platyphylloside (1 or 2 mg/kg body weight) significantly ameliorated scopolamine-induced amnesia in passive avoidance test. CREB phosphorylation and brain-derived neurotrophic factor (BDNF) expression in the cortex and hippocampus of the scopolamine-treated mice were markedly increased by the treatment of the standardized extract of B. platyphylla bark and platyphylloside. The standardized extract of B. platyphylla bark and its major diarylheptanoids also significantly protected HT22 cells against neurotoxicity induced by glutamate insult. The standardized extract of B. platyphylla bark and platyphylloside may ameliorate memory deficits by activating the CREB-BDNF pathway and prevent a neurodegeneration by inhibiting neuronal cell death.

Original languageEnglish
Pages (from-to)1315-1320
Number of pages6
JournalPhytomedicine
Volume19
Issue number14
DOIs
Publication statusPublished - 2012 Nov 15

Bibliographical note

Funding Information:
This work was carried out with the support of ‘ Forest Science and Technology Projects ( S121212L250000 )’ provided by Korea Forest Service.

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine

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