Abstract Title:

Dandelion T-1 extract up-regulates reproductive hormone receptor expression in mice.

Abstract Source:

Int J Mol Med. 2007 Sep;20(3):287-92. PMID: 17671731

Abstract Author(s):

Xu Zhi, Ken-Ichi Honda, Koji Ozaki, Takuya Misugi, Toshiyuki Sumi, Osamu Ishiko

Article Affiliation:

Department of Obstetrics and Gynecology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan.


Reproductive hormones exert their actions via receptors in diverse tissues. In this study, we examined the expression of estrogen receptors (ERalpha and ERbeta), progesterone receptor (PR), and follicle-stimulating hormone receptor (FSHR) in the adipose tissue and reproductive organs of mice following oral treatment with Dandelion T-1 extract (DT-1E) for 6 weeks. Quantitative assays by real-time reverse transcription polymerase chain reaction showed enhanced expression of ERalpha and ERbeta mRNA in the adipose tissue of mice fed a diet containing DT-1E compared with the control group fed a plain diet. Furthermore, following gonadotropin injection, higher mRNA expression of ERalpha, ERbeta and PR in the uterus and FSHR in the ovary was found in the DT-1E group compared with the control group. An immunohistochemical study also showed increased levels of the above-mentioned receptors in the DT-1E group. The present study shows that oral intake of DT-1E up-regulates ERalpha, ERbeta, PR and FSHR expression in mice, suggesting the potential application of DT-1E for the clinical treatment of reproductive hormone-related disturbances.

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