Protective effect of porcine placenta in a menopausal ovariectomized mouse

Na Ra Han, Chan Lee Park, Na Rae Kim, Hee Yun Kim, Myoung Schook Yoou, Sun Young Nam, Phil Dong Moon, Hyun Ja Jeong, Hyung Min Kim

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

Menopause is a significant physiological phase that occurs as women's ovaries stop producing ovum and the production of estrogen declines. Human placenta and some amino acids are known to improve menopausal symptoms. In this study, we investigated that porcine placenta extract (PPE) and arginine (Arg), a main amino acid of PPE, would have estrogenic activities in ovariectomized (OVX) mice as a menopause mouse model, human breast cancer cell line (MCF-7) cells, and human osteoblast cell line (MG-63) cells. PPE or Arg significantly inhibited the body weight and increased the vagina weight compared to the OVX mice. PPE or Arg ameliorated the vaginal atrophy in the OVX mice. The levels of 17b-estradiol and the activities of alkaline phosphatase (ALP) were significantly increased by PPE or Arg in the serum of OVX mice. Trabecular bone parameters such as bone mineral density and porosity were also improved by PPE or Arg in the OVX mice. In the MCF-7 and MG-63 cells, PPE or Arg significantly increased the cell proliferation, estrogen receptor b mRNA expression, and estrogen-response elements luciferase activity. Finally, PPE or Arg increased the activations of ALP and extracellular signalregulated kinase 1/2 in the MG-63 cells. These results indicate that PPE or Arg would have estrogenic and osteoblastic activity. Therefore, PPE or Arg may be useful as new pharmacological tools for treating menopausal symptoms including osteoporosis.

Original languageEnglish
Pages (from-to)173-181
Number of pages9
JournalReproduction
Volume150
Issue number3
DOIs
Publication statusPublished - 1 Sep 2015

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