4.5 Article

New estrogenic compounds isolated from Broussonetia kazinoki

Journal

BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
Volume 20, Issue 12, Pages 3764-3767

Publisher

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.bmcl.2010.04.064

Keywords

Estrogen receptor; Phytoestrogen; Broussonetia kazinoki

Funding

  1. Korea government (MEST) [R11-2005-017-07001-0]
  2. Ministry of Education, Science and Technology [KRF-2008-313-E00769]
  3. National Research Foundation of Korea [R11-2005-017-07001-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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Two new and two known compounds were identified as estrogenic constituents from Broussonetia kazinoki. Their structures were elucidated as broussonin A (1), tupichinol C (2), kazinol U (3), and (+)-(2R) kazinol I (4). They showed estrogenic activity with ligand-binding activity of estrogen receptor, transcriptional activity of estrogen-responsive element-luciferase reporter genes. They also control the cellular gene expression levels of estrogen-responsive genes. Phytoestrogens from B. kazinoki may have beneficial effects in the treatment of menopausal symptoms. (C) 2010 Elsevier Ltd. All rights reserved.

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