Search
Check Out Our Sponsors
Latest topics
Pueraria mirifica phytoestrogens improve dyslipidemia in postmenopausal women probably by activating estrogen receptor subtypes
Page 1 of 1
Pueraria mirifica phytoestrogens improve dyslipidemia in postmenopausal women probably by activating estrogen receptor subtypes
Pueraria mirifica phytoestrogens improve dyslipidemia in postmenopausal women probably by activating estrogen receptor subtypes.
Okamura S, Sawada Y, Satoh T, Sakamoto H, Saito Y, Sumino H, Takizawa T, Kogure T, Chaichantipyuth C, Higuchi Y, Ishikawa T, Sakamaki T.
Department of Medical Informatics and Decision Sciences, School of Medicine, Gunma University, Maebashi, Japan.
Impaired lipid metabolism is an important health problem in postmenopausal women with insufficient estrogens, because dyslipidemia is a risk factor for development of atherosclerosis and the incidence of cardiovascular disease markedly increases after menopause. Pueraria mirifica (PM), a Thai herb, has been noticed as a source of phytoestrogens, estrogen-mimicking plant compounds. However, the clinical effects of PM on lipid metabolism and the underlying molecular mechanisms remain undetermined. Therefore, we examined the effects of PM on serum lipid parameters in a randomized, double-blind, placebo-controlled clinical trial. Nineteen postmenopausal women were randomly assigned to receive oral administration of PM powder or placebo. After 2 months of treatment, the PM group showed a significant increase in serum concentrations of high-density lipoprotein (HDL) cholesterol and apolipoprotein (apo) A-1 (34% and 40%, respectively), and a significant decrease in low-density lipoprotein (LDL) cholesterol and apo B (17% and 9%, respectively), compared with baseline measurements. Moreover, significant decreases were observed in the ratios of LDL cholesterol to HDL cholesterol (37%) and apo B to apo A-1 (35%). Next, we determined the effects of PM phytoestrogens on the activation of estrogen receptor (ER)-mediated transactivation by transient expression assays of a reporter gene in cultured cells. Among PM phytoestrogens, miroestrol and coumestrol enhanced both ERalpha- and ERbeta-mediated transactivation, whereas other phytoestrogens, including daidzein and genistein, preferentially enhanced ERbeta-mediated transactivation. In conclusion, PM has a beneficial effect on lipid metabolism in postmenopausal women, which may result from the activation of gene transcription through selective binding of phytoestrogens to ERalpha and ERbeta.
Okamura S, Sawada Y, Satoh T, Sakamoto H, Saito Y, Sumino H, Takizawa T, Kogure T, Chaichantipyuth C, Higuchi Y, Ishikawa T, Sakamaki T.
Department of Medical Informatics and Decision Sciences, School of Medicine, Gunma University, Maebashi, Japan.
Impaired lipid metabolism is an important health problem in postmenopausal women with insufficient estrogens, because dyslipidemia is a risk factor for development of atherosclerosis and the incidence of cardiovascular disease markedly increases after menopause. Pueraria mirifica (PM), a Thai herb, has been noticed as a source of phytoestrogens, estrogen-mimicking plant compounds. However, the clinical effects of PM on lipid metabolism and the underlying molecular mechanisms remain undetermined. Therefore, we examined the effects of PM on serum lipid parameters in a randomized, double-blind, placebo-controlled clinical trial. Nineteen postmenopausal women were randomly assigned to receive oral administration of PM powder or placebo. After 2 months of treatment, the PM group showed a significant increase in serum concentrations of high-density lipoprotein (HDL) cholesterol and apolipoprotein (apo) A-1 (34% and 40%, respectively), and a significant decrease in low-density lipoprotein (LDL) cholesterol and apo B (17% and 9%, respectively), compared with baseline measurements. Moreover, significant decreases were observed in the ratios of LDL cholesterol to HDL cholesterol (37%) and apo B to apo A-1 (35%). Next, we determined the effects of PM phytoestrogens on the activation of estrogen receptor (ER)-mediated transactivation by transient expression assays of a reporter gene in cultured cells. Among PM phytoestrogens, miroestrol and coumestrol enhanced both ERalpha- and ERbeta-mediated transactivation, whereas other phytoestrogens, including daidzein and genistein, preferentially enhanced ERbeta-mediated transactivation. In conclusion, PM has a beneficial effect on lipid metabolism in postmenopausal women, which may result from the activation of gene transcription through selective binding of phytoestrogens to ERalpha and ERbeta.
Amaranthaceae- Posts : 1368
Join date : 2008-07-15
Location : Copenhagen
Similar topics
» Lipoprotein(a)
» Dietary Phytoestrogens Are Not Associated with Risk of Overall Breast Cancer But Diets Rich in Coumestrol Are Inversely Associated with Risk of Estrogen Receptor and Progesterone Receptor Negative Breast Tumors in Swedish Women1,2
» The mutagenic and antimutagenic effects of the traditional phytoestrogen-rich herbs, Pueraria mirifica and Pueraria lobata.
» Pueraria Mirifica
» Pueraria Mirifica
» Dietary Phytoestrogens Are Not Associated with Risk of Overall Breast Cancer But Diets Rich in Coumestrol Are Inversely Associated with Risk of Estrogen Receptor and Progesterone Receptor Negative Breast Tumors in Swedish Women1,2
» The mutagenic and antimutagenic effects of the traditional phytoestrogen-rich herbs, Pueraria mirifica and Pueraria lobata.
» Pueraria Mirifica
» Pueraria Mirifica
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum
Today at 4:18 am by CausticSymmetry
» China is at it again
Today at 4:07 am by CausticSymmetry
» Ways to increase adult stem cells
Yesterday at 5:40 pm by el_llama
» pentadecanoic acid
Sun May 05, 2024 10:56 am by CausticSymmetry
» Exosome Theory and Herpes
Fri May 03, 2024 3:25 am by CausticSymmetry
» Road to recovery - my own log of everything I'm currently trying for HL
Tue Apr 30, 2024 1:55 pm by JtheDreamer
» Medical Coder During C0NV!D
Sat Apr 27, 2024 4:00 pm by CausticSymmetry
» Potential Natural Products Regulation of Molecular Signaling Pathway in Dermal Papilla Stem Cells
Wed Apr 17, 2024 7:44 am by CausticSymmetry
» Breast Biopsy
Sun Apr 14, 2024 2:23 am by shaftless