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Phytoestrogens and bone

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https://www.readbyqxmd.com/read/28412809/selective-estrogen-receptor-modulator-serm-like-activities-of-diarylheptanoid-a-phytoestrogen-from-curcuma-comosa-in-breast-cancer-cells-pre-osteoblast-cells-and-rat-uterine-tissues
#1
Natthakan Thongon, Nittaya Boonmuen, Kanoknetr Suksen, Patsorn Wichit, Arthit Chairoungdua, Patoomratana Tuchinda, Apichart Suksamrarn, Wipawee Winuthayanon, Pawinee Piyachaturawat
Diarylheptanoids from Curcuma comosa, of the Zingiberaceae family, exhibit diverse estrogenic activities. In this study we investigated the estrogenic activity of a major hydroxyl diarylheptanoid, 7-(3,4 -dihydroxyphenyl)-5-hydroxy-1-phenyl-(1E)-1-heptene (compound 092) isolated from C. comosa. The compound elicited different transcriptional activities of estrogen agonist at low concentrations (0.1-1 μM) and antagonist at high concentrations (10-50 μM) using luciferase reporter gene assay in HEK-293T cells...
April 24, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28325144/therapeutic-potential-and-outlook-of-alternative-medicine-for-osteoporosis
#2
Tao Wang, Qian Liu, William Tjhioe, Jinmin Zhao, Aiping Lu, Ge Zhang, Renxiang Tan, Mengyu Zhou, Jiake Xu, Haotian Feng
Osteoporosis, a bone disease resulting in loss of bone density and microstructure quality, is often associated with fragility fractures, and the latter imposes a great burden on the patient and society. Although there are several different treatments available for osteoporosis such as hormone replacement therapy, bisphosphonates, Denosumab, and parathyroid hormone some concern has been raised regarding the inherent side effects of their long term use. It would be of great relevance to search for alternative natural compounds, which could complementarily overcome the limitations of the currently available therapy...
March 21, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28314478/osteoinductive-effects-of-glyceollins-on-adult-mesenchymal-stromal-stem-cells-from-adipose-tissue-and-bone-marrow
#3
Marjorie E Bateman, Amy L Strong, Ryan S Hunter, Melyssa R Bratton, Rajesh Komati, Jayalakshmi Sridhar, Kevin E Riley, Guangdi Wang, Daniel J Hayes, Stephen M Boue, Matthew E Burow, Bruce A Bunnell
BACKGROUND: While current therapies for osteoporosis focus on reducing bone resorption, the development of therapies to regenerate bone may also be beneficial. Promising anabolic therapy candidates include phytoestrogens, such as daidzein, which effectively induce osteogenesis of adipose-derived stromal cells (ASCs) and bone marrow stromal cells (BMSCs). PURPOSE: To investigate the effects of glyceollins, structural derivatives of daidzein, on osteogenesis of ASCs and BMSCs...
April 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28183304/genistein-treatment-improves-fracture-resistance-in-obese-diabetic-mice
#4
Britton Odle, Nathan Dennison, Layla Al-Nakkash, Tom L Broderick, Jeffrey H Plochocki
BACKGROUND: Obese, type two diabetics are at an increased risk for fracturing their limb bones in comparison to the general population. Phytoestrogens like as the soy isoflavone genistein have been shown to protect against bone loss. In this study, we tested the effects of genistein treatment on femurs of ob/ob mice, a model for obesity and type two diabetes mellitus. METHODS: Twenty six-week-old female mice were divided into obese (ob/ob) control, obese genistein-treated, lean (ob/+) control, and lean genistein-treated groups (n = 5 each)...
January 9, 2017: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/28125641/synergistic-action-of-genistein-and-calcitriol-in-immature-osteosarcoma-mg-63-cells-by-sgpl1-up-regulation
#5
Nadja Engel, Anna Adamus, Nicolas Schauer, Juliane Kühn, Barbara Nebe, Guido Seitz, Karin Kraft
BACKGROUND: Phytoestrogens such as genistein, the most prominent isoflavone from soy, show concentration-dependent anti-estrogenic or estrogenic effects. High genistein concentrations (>10 μM) also promote proliferation of bone cancer cells in vitro. On the other hand, the most active component of the vitamin D family, calcitriol, has been shown to be tumor protective in vitro and in vivo. The purpose of this study was to examine a putative synergism of genistein and calcitriol in two osteosarcoma cell lines MG-63 (early osteoblast), Saos-2 (mature osteoblast) and primary osteoblasts...
2017: PloS One
https://www.readbyqxmd.com/read/27917278/the-preventive-and-therapeutic-roles-of-phytoestrogen-%C3%AE-zearalanol-on-osteoporetic-rats-due-to-ovariectomization
#6
Shaochun Li, Weiwei Zhang, Fei Duan, Weihua Liu, Xiaofang Sun, Xuefeng Pan
OBJECTIVES: The aim of this study was to observe the influence of phytoestrogen α-Zearalanol on ovariectomy-induced postmenopausal osteoporosis in rats. MATERIALS AND METHODS: 40 SD female rats were randomly divided into four groups: Sham group, OVX group (ovariectomized and fed estrogen), α-Zearalanol group (ovariectomized and fed α-Zearalanol) and untreated group (ovariectomized). Three weeks later after surgery, α-Zearalanol and estradiol valerate were administered by oral gavage for 12 weeks to the α-Zearalanol group and the OVX group, respectively...
November 2016: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/27908549/noni-leaf-and-black-tea-enhance-bone-regeneration-in-estrogen-deficient-rats
#7
Nor Aijratul Asikin Mohd Shalan, Noordin M Mustapha, Suhaila Mohamed
OBJECTIVE: Black tea and Nonileaf are among the dietary compounds that can benefit patients with bone resorption disorders. Their bone regeneration effects and their mechanisms were studied in estrogen-deficient rats. METHODS: Noni leaves (three doses) and black tea water extracts were fed to ovariectomized rats for 4 mo, and their effects (analyzed via mechanical measurements, micro-computed tomography scan, and reverse transcriptase polymerase chain reaction mRNA) were compared with Remifemin (a commercial phytoestrogen product from black cohosh)...
January 2017: Nutrition
https://www.readbyqxmd.com/read/27872812/anti-inflammatory-effects-of-the-essential-oils-of-ginger-zingiber-officinale-roscoe-in-experimental-rheumatoid-arthritis
#8
Janet L Funk, Jennifer B Frye, Janice N Oyarzo, Jianling Chen, Huaping Zhang, Barbara N Timmermann
Ginger and its extracts have been used traditionally as anti-inflammatory remedies, with a particular focus on the medicinal properties of its phenolic secondary metabolites, the gingerols. Consistent with these uses, potent anti-arthritic effects of gingerol-containing extracts were previously demonstrated by our laboratory using an experimental model of rheumatoid arthritis, streptococcal cell wall (SCW)-induced arthritis. In this study, anti-inflammatory effects of ginger's other secondary metabolites, the essential oils (GEO), which contain terpenes with reported phytoestrogenic activity, were assessed in female Lewis rats with SCW-induced arthritis...
July 2016: PharmaNutrition
https://www.readbyqxmd.com/read/27785742/combined-effects-of-phytoestrogen-genistein-and-silicon-on-ovariectomy-induced-bone-loss-in-rat
#9
Shanshan Qi, Hongxing Zheng
This study was performed to evaluate the effect of concomitant supplementation of genistein and silicon on bone mineral density and bone metabolism-related markers in ovariectomized rat. Three-month-old Sprague Dawley female rats were subjected to bilateral ovariectomy (OVX) or sham surgery, and then the OVX rats were randomly divided into four groups: OVX-GEN, OVX-Si, OVX-GEN-Si, and OVX. Genistein and silicon supplementation was started immediately after OVX and continued for 10 weeks. In the OVX-GEN group, 5 mg genistein per gram body weight was injected subcutaneously...
October 26, 2016: Biological Trace Element Research
https://www.readbyqxmd.com/read/27710141/effects-of-phytoestrogens-on-bone-mineral-density-during-the-menopause-transition-a-systematic-review-of-randomized-controlled-trials
#10
REVIEW
F Abdi, Z Alimoradi, P Haqi, F Mahdizad
INTRODUCTION: Menopause is associated with increased bone resorption and decreased bone mineral density (BMD). Phytoestrogens are believed to prevent bone loss. This study reviewed relevant randomized, controlled trials to determine the effects of phytoestrogens on BMD in postmenopausal women. METHODS: In order to perform this systematic review, PubMed, Science Direct, Scopus, Cochrane Library, ISI Web of Knowledge, and ProQuest databases were searched for articles published during 2005-2016...
December 2016: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/27697446/coadministration-of-puerarin-low-dose-and-zinc-attenuates-bone-loss-and-suppresses-bone-marrow-adiposity-in-ovariectomized-rats
#11
Hao Liu, Wei Li, Xiyuan Ge, Shengnan Jia, Binbin Li
AIMS: Puerarin is a phytoestrogen that shows osteogenic effects. Meanwhile, zinc stimulates bone formation and inhibits bone resorption. The study aims to investigate the effects of coadministration of puerarin (low dose) and zinc on bone formation in ovariectomized rats. MATERIALS AND METHODS: Co-administration or use alone of puerarin (low dose) and/or zinc were gavaged in OVX rats. The estrogen-like effects were detected by the uterus weight, the histologic observation and the IGF-1 protein expression...
December 1, 2016: Life Sciences
https://www.readbyqxmd.com/read/27588108/suppressive-effect-of-formononetin-on-platelet-derived-growth-factor-bb-stimulated-proliferation-and-migration-of-vascular-smooth-muscle-cells
#12
Zhuo Chen, Suixin Liu, Ying Cai, Kangling Xie, Wenliang Zhang, Lei Dong, Yuan Liu, Fan Zheng, Yaoshan Dun, Ning Li
Abnormal proliferation and migration of vascular smooth muscle cells (VSMCs) has been implicated in intimal hyperplasia, atherosclerosis and restenosis following percutaneous coronary intervention. Formononetin, a phytoestrogen extracted from the root of Astragalus membranaceus, has been widely used in Chinese tradition medicine due to its protective effects against certain symptoms of cancer, hypertension, inflammation, hypoxia-induced cytotoxicity and ovariectomy-induced bone loss. However, the effect of formononetin on platelet-derived growth factor (PDGF)-BB-induced proliferation and migration of VSMCs, as well as the underlying molecular mechanism, remains largely unclear...
September 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27523282/diarylheptanoid-from-curcuma-comosa-roxb-suppresses-rankl-induced-osteoclast-differentiation-by-decreasing-nfatc1-and-c-fos-expression-via-mapk-pathway
#13
Supatta Chawalitpong, Nilubon Sornkaew, Apichart Suksamrarn, Tanapat Palaga
Osteoporosis is caused by a functional imbalance between osteoblasts and osteoclasts. The increased activation of osteoclasts that is a hallmark of osteoporosis results in the progressive loss of bone mass and therefore in an increased susceptibility to bone fractures. Diarylheptanoids are a group of phytoestrogens that have been isolated from a number of plant species, including the rhizomes of Curcuma comosa Roxb. In this study, the effect of one of diarylheptanoids, (3S)-1-(3,4-dihydroxyphenyl)-3-hydroxy-7-phenyl-(6E)-6-heptene (DHPH), was investigated for anti-inflammatory and anti-osteoclastogenic activity...
October 5, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27516660/complementary-and-alternative-medicine-for-osteoporosis
#14
Zahra Alsadat Hejazi, Forough Namjooyan, Marjan Khanifar
BACKGROUND: A systemic skeletal disease is characterized by low bone mass and micro-architectural deterioration with a consequent increase in bone fragility and susceptibility to fracture. Asia has the highest increment in the elderly population; therefore, osteoporotic fracture should be a noticeable health issue. The incidence rate of hip fractures in Asia could rise to 45% by the year 2050. Complementary and alternative medicine (CAM) is a group of various medical and health care systems, practices, and products that are not presently considered as part of formal medicine...
May 2016: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/27434879/glabridin-and-glycyrrhizic-acid-show-no-beneficial-effect-on-the-chemical-composition-and-mechanical-properties-of-bones-in-ovariectomized-rats-when-administered-in-moderate-dose
#15
Ilona Kaczmarczyk-Sedlak, Sylwia Klasik-Ciszewska, Weronika Wojnar
BACKGROUND: One of the major causes of osteoporosis and bone fracture in postmenopausal women is estrogen deficiency. To prevent the fractures, and avoid the side effects of hormone replacement therapy, phytoestrogens including the isoflavonoids are used. In the presented study two constituents occurring in the licorice root-the isoflavane glabridin and triterpenoid saponin glycyrrhizic acid were examined on the skeletal system of ovariectomized rats. METHODS: The female Wistar rats were divided into five groups: control group, ovariectomized group as well as three ovariectomized groups treated with estradiol (0...
October 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27420978/daidzein-promotes-osteoblast-proliferation-and-differentiation-in-oct1-cells-through-stimulating-the-activation-of-bmp-2-smads-pathway
#16
B Hu, B Yu, D Tang, S Li, Y Wu
Daidzein, the most widely studied soy phytoestrogen, is not only a potential antiosteoporosis agent owing to its possible osteogenic activity, but also shows anticancer activity. However, the mechanisms through which daidzein affects osteoblast function have not been investigated thoroughly. Here, we show that daidzein stimulated cell proliferation and differentiation of osteoblasts, demonstrated by upregulation of XTT activity, enhancement of alkaline phosphatase (ALP) activity, and upregulation of osteoblast-specific marker genes, including Runt-related transcription factor 2 (Runx2) and Smad1, as well as upregulation of Runx2 and Smad1 protein expression...
June 24, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27339619/danshen-enhanced-the-estrogenic-effects-of-qing-e-formula-in-ovariectomized-rats
#17
Jian-Mei Zhang, Jin Li, Er-Wei Liu, Hong Wang, Guan-Wei Fan, Yue-Fei Wang, Yan Zhu, Shang-Wei Ma, Xiu-Mei Gao
BACKGROUND: Menopause is characterized by a decrease in life quality due to the appearance of uncomfortable symptoms. Nowadays, Understanding menopause-associated pathophysiology and developing new strategies to improve the treatment of menopausal-associated symptoms is an important issue. Our study was to evaluate the synergistic effects of Danshen (salvia miltiorrhiza bunge) and the phytoestrogenic effects of 3 modified Qing E formulas, to explore a better formula for menopausal disorders...
June 23, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27180445/effect-of-glabridin-and-glycyrrhizic-acid-on-histomorphometric-parameters-of-bones-in-ovariectomized-rats
#18
COMPARATIVE STUDY
Sylwia Klasik-Ciszewska, Ilona Kaczmarczyk-Sedlak, Weronika Wojnar
Licorice is a medicinal plant showing many therapeutic activities. Its roots contain numerous pharmacologically active compounds such as a triterpenoid saponin--glycyrrhizic acid and an isoflavan--glabridin. There are reports indicating that glabridin exhibits estrogen-like activity, therefore it can be classified into phytoestrogens, which may soothe menopause symptoms including postmenopausal osteoporosis. Due to this fact, the aim of the presented study was to evaluate the effect of glabridin and glycyrrhizic acid on histomorphometric parameters of bones in rats with ovariectomy-induced osteoporosis...
March 2016: Acta Poloniae Pharmaceutica
https://www.readbyqxmd.com/read/27070807/methoxyisoflavones-formononetin-and-isoformononetin-inhibit-the-differentiation-of-th17-cells-and-b-cell-lymphopoesis-to-promote-osteogenesis-in-estrogen-deficient-bone-loss-conditions
#19
Mohd N Mansoori, Abdul M Tyagi, Priyanka Shukla, Kamini Srivastava, Kapil Dev, Raju Chillara, Rakesh Maurya, Divya Singh
OBJECTIVE: Recent studies have shown that immune system plays a major role in pathophysiology of postmenopausal osteoporosis. Previously we have shown that phytoestrogens like daidzein and medicarpin exhibit immunoprotective effects, by virtue of which they alleviate bone loss. With this background, methoxyisoflavones like formononetin (formo) and isoformononetin (isoformo) that have been studied for preventing bone loss in ovariectomized rats were tested for their immunomodulatory effects in estrogen-deficient bone loss mice model...
May 2016: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/27042131/genistein-treatment-increases-bone-mass-in-obese-hyperglycemic-mice
#20
Richard M Michelin, Layla Al-Nakkash, Tom L Broderick, Jeffrey H Plochocki
BACKGROUND: Obesity and type 2 diabetes mellitus are associated with elevated risk of limb bone fracture. Incidences of these conditions are on the rise worldwide. Genistein, a phytoestrogen, has been shown by several studies to demonstrate bone-protective properties and may improve bone health in obese type 2 diabetics. METHODS: In this study, we test the effects of genistein treatment on limb bone and growth plate cartilage histomorphometry in obese, hyperglycemic ob/ob mice...
2016: Diabetes, Metabolic Syndrome and Obesity: Targets and Therapy
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