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Abstract
Ferroptosis is a newly identified form of non-apoptotic cell death characterised primarily by iron-dependent lipid peroxidation. It differs morphologically, biochemically, and genetically from other forms of cell death, such as apoptosis, autophagy, and necrosis. Although the molecular mechanism underlying ferroptosis remains unclear, multiple biological processes, such as iron metabolism, lipid peroxides, and systems, such as the glutathione system and the tetrahydrobiopterin/coenzyme Q10 system, appear to be involved. While the contribution of ferroptotic mechanisms to human diseases is not clear, recent studies have identified a number of ferroptosis-related genes. Cardiovascular diseases are the main cause of death globally. In this review, we outline the progress regarding the emerging role of ferroptosis in the pathogenesis of cardiac pathophysiological conditions and the association of ferroptosis with cardiomyopathy, myocardial ischemia-reperfusion injury, heart failure, and atherosclerosis. We further summarise newly discovered ferroptotic targets for the development of therapies for cardiovascular diseases. Finally, we discuss the current challenges and future research directions in cardiovascular disease treatments.
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Dietary syringic acid reduces fat mass in an ovariectomy-induced mouse model of obesity. ACTA ACUST UNITED AC 2021; 28:1340-1350. [PMID: 34610616 DOI: 10.1097/gme.0000000000001853] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Postmenopausal women are at increased risk of metabolic diseases such as obesity and diabetes. Therefore, the chemoprevention of postmenopausal changes in health via dietary supplements is important. Syringic acid (SA) is a phenolic compound present in the fruit of the assai palm, Euterpe oleracea, and in the mycelium of the shiitake mushroom, Lentinula edodes. This compound shows no affinity for estrogen receptors and may exert disease-preventive effects. Reportedly, dietary SA ameliorates high-fat diet-induced obesity in mice; however, its effects on estrogen deficiency-induced obesity are still unclear. Therefore, in this study, we investigated whether and how dietary SA affects these factors in ovariectomized (OVX) mice. METHODS Ten-week-old OVX mice were fed SA-containing diets (100 mg/kg body weight/d) for 12 weeks. Their body weights, food intake, and uterus weights as well as other parameters were measured and comparisons were made with mice in the control group. RESULTS Dietary SA did not affect the body weight, food intake, or uterus weight of OVX mice over the study period; however, the SA-fed group showed lower fat mass (ie, visceral, subcutaneous, and total fat) than the OVX-control group (11.1 ± 3.3 vs. 8.3 ± 2.4, P < 0.05; 7.9 ± 1.1 vs. 5.9 ± 1.6, P < 0.05; 19.0 ± 4.2 vs. 14.1 ± 3.8, P < 0.05, respectively). Furthermore, blood analysis revealed that SA-treatment resulted in a dose-dependent decrease and increase in serum triglyceride (59.2 ± 8.3 vs. 43.9 ± 12.2 mg/dL P < 0.05) and adiponectin (7.7 ± 0.3 vs. 9.5 ± 0.6 μg/mL, P < 0.05) levels, respectively. CONCLUSIONS These results suggest that the SA diet improves lipid metabolism without affecting the uterus in OVX mice. Therefore, dietary SA has potential applicability for the prevention of postmenopausal obesity and type 2 diabetes.
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Li J, Peng Y. Effect of puerarin on osteogenic differentiation of human periodontal ligament stem cells. J Int Med Res 2019; 48:300060519851641. [PMID: 31885340 PMCID: PMC7607290 DOI: 10.1177/0300060519851641] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Objective To investigate the effects of the flavonoid, puerarin, on osteogenic
differentiation of human periodontal ligament stem cells (PDLSCs). Methods Human PDLSCs were isolated from patients undergoing orthodontic treatment,
and the cell surface markers CD146, CD34, CD45, and STRO-1 were identified
by immunofluorescence. Cell proliferation was detected by MTT assay;
alkaline phosphatase (ALP) activity was measured, and calcium deposition was
detected by alizarin red staining. PCR was then used to detect the
distributions of COL-I, OPN,
Runx2, and OCN, genes related to
osteogenic differentiation. Results Staining was positive for cytokines CD146, CD34, CD45, and STRO-1 in the
experimental group; staining was also positive for silk protein, but
negative for keratin. After 7 days of culture, exposure to puerarin
significantly promoted the level of intracellular ALP; increased puerarin
concentration led to increased intracellular ALP. Red mineralized nodules
appeared upon exposure to puerarin and the number of nodules was
concentration-dependent. PCR analysis revealed that COL-I,
OPN, Runx2, and OCN
expression levels increased as puerarin concentration increased. Conclusions Exposure to puerarin can promote proliferation and ALP activity in human
PDLSCs, thus promoting both molecular and osteogenic differentiation; these
findings may provide a theoretical basis for the clinical treatment of
periodontal disease with puerarin.
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Affiliation(s)
- Jun Li
- Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, China
| | - Youjian Peng
- Department of Stomatology, Renmin Hospital of Wuhan University, Wuhan, China
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Tantipongpiradet A, Monthakantirat O, Vipatpakpaiboon O, Khampukdee C, Umehara K, Noguchi H, Fujiwara H, Matsumoto K, Sekeroglu N, Kijjoa A, Chulikhit Y. Effects of Puerarin on the Ovariectomy-Induced Depressive-Like Behavior in ICR Mice and Its Possible Mechanism of Action. Molecules 2019; 24:molecules24244569. [PMID: 31847138 PMCID: PMC6943479 DOI: 10.3390/molecules24244569] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 12/05/2019] [Accepted: 12/11/2019] [Indexed: 12/12/2022] Open
Abstract
Daily treatment of ovariectomized (OVX) ICR mice with puerarin, a glycosyl isoflavone isolated from the root bark of Pueraria candollei var. mirifica, and 17β-estradiol attenuated ovariectomy-induced depression-like behavior, as indicated by a decrease in immobility times in the tail suspension test (TST) and the forced swimming test (FST), an increase in the uterine weight and volume, a decrease in serum corticosterone levels, and dose-dependently normalized the downregulated transcription of the brain-derived neurotrophic factor (BDNF) and estrogen receptor (Erβ and Erα) mRNAs. Like 17β-estradiol, puerarin also inhibited ovariectomy-induced suppression of neurogenesis in the dentate gyrus of the hippocampus (increased the number of doublecortin (DCX)-immunosuppressive cells). These results suggest that puerarin exerts antidepressant-like effects in OVX animals, possibly by attenuating the OVX-induced hyperactivation of the HPA axis and/or normalizing the downregulated transcription of BDNF and ER mRNA in the brain.
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Affiliation(s)
- Ariyawan Tantipongpiradet
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (A.T.); (O.M.); (O.V.); (C.K.)
| | - Orawan Monthakantirat
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (A.T.); (O.M.); (O.V.); (C.K.)
| | - Onchuma Vipatpakpaiboon
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (A.T.); (O.M.); (O.V.); (C.K.)
| | - Charinya Khampukdee
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (A.T.); (O.M.); (O.V.); (C.K.)
| | - Kaoru Umehara
- Department of Pharmacognosy, School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Shizuoka-shi, Shizuoka 422-8526, Japan; (K.U.); (H.N.)
| | - Hiroshi Noguchi
- Department of Pharmacognosy, School of Pharmaceutical Sciences, University of Shizuoka, Yada 52-1, Shizuoka-shi, Shizuoka 422-8526, Japan; (K.U.); (H.N.)
| | - Hironori Fujiwara
- Division of Medicinal Pharmacology, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan; (H.F.); (K.M.)
| | - Kinzo Matsumoto
- Division of Medicinal Pharmacology, Institute of Natural Medicine, University of Toyama, 2630 Sugitani, Toyama 930-0194, Japan; (H.F.); (K.M.)
| | - Nazim Sekeroglu
- Department of Horticulture, Faculty of Agriculture, Killis 7 Aralik University, Killis 79000, Turkey;
| | - Anake Kijjoa
- ICBAS-Instituto de Ciências Biomédicas Abel Salazar and CIIMAR, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Correspondence: (A.K.); (Y.C.); Tel.: +351-220428331 (A.K.)
| | - Yaowared Chulikhit
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen 40002, Thailand; (A.T.); (O.M.); (O.V.); (C.K.)
- Correspondence: (A.K.); (Y.C.); Tel.: +351-220428331 (A.K.)
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Tanaka T, Onuma H, Shigihara T, Kimura E, Fukuta Y, Shirasaka N, Moriyama T, Homma Y. Anti-osteoporotic effects of syringic acid and vanilic acid in the extracts of waste beds after mushroom cultivation. J Biosci Bioeng 2019; 128:622-629. [PMID: 31186185 DOI: 10.1016/j.jbiosc.2019.04.021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/08/2019] [Accepted: 04/30/2019] [Indexed: 11/15/2022]
Abstract
In recent years, the number of patients with osteoporosis has increased as population grows older. Therefore, the chemoprevention of osteoporosis by better nutrition is important. White-rot fungi degrades milled wood lignin for growth and development. This degradation results in the formation of phenolic compounds such as syringic acid (SA) and vanillic acid (VA). In the artificial culture of edible mushrooms using a mushroom bed, the disposal of waste beds after mushroom cultivation is an important issue. The present study investigated the presence and amount of both SA and VA in the discarded waste beds after mushroom cultivation. The extracts from waste beds after cultivation of shiitake mushrooms, Lentinula edodes; buna shimeji, Hypsizygus marmoreus; maitake, Grifola frondosa; king trumpet mushrooms, Pleurotus eryngii; and butterscotch mushrooms, Pholiota microspora were analyzed using high performance liquid chromatography. Although the content of SA and VA was considerably different among the mushrooms, SA and VA were present in extracts obtained from all the waste beds. We also demonstrated that SA and VA exert their anti-osteoporotic effect independently of the estrogen receptor-mediated pathway using murine monocytic RAW264.7 cells, ovariectomized mice, and human breast cancer MCF-7 cells. Thus, these results suggest that the extracts are effective sources of SA and VA, which are effective in preventing osteoporosis.
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Affiliation(s)
- Teruyoshi Tanaka
- Department of Biomolecular Science, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima 960-1295, Japan; Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, 3327-204 Nakamachi, Nara 631-8505, Japan.
| | - Hiroki Onuma
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, 3327-204 Nakamachi, Nara 631-8505, Japan
| | - Takashi Shigihara
- Edible Fungi Institute, Kinokkusu Corporation, 7 Narae-Banzan, Shimoayashi, Aoba-ku, Sendai, Miyagi 989-3125, Japan
| | - Eiichi Kimura
- Edible Fungi Institute, Kinokkusu Corporation, 7 Narae-Banzan, Shimoayashi, Aoba-ku, Sendai, Miyagi 989-3125, Japan
| | - Yasuhisa Fukuta
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, 3327-204 Nakamachi, Nara 631-8505, Japan
| | - Norifumi Shirasaka
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, 3327-204 Nakamachi, Nara 631-8505, Japan
| | - Tatsuya Moriyama
- Department of Applied Biological Chemistry, Graduate School of Agriculture, Kindai University, 3327-204 Nakamachi, Nara 631-8505, Japan
| | - Yoshimi Homma
- Department of Biomolecular Science, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima 960-1295, Japan
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Loutchanwoot P, Vortherms T. Effects of puerarin on estrogen-regulated gene expression in gonadotropin-releasing hormone pulse generator of ovariectomized rats. Steroids 2018; 135:54-62. [PMID: 29733861 DOI: 10.1016/j.steroids.2018.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/28/2018] [Accepted: 05/02/2018] [Indexed: 11/28/2022]
Abstract
Effects of puerarin on the hypothalamic gonadotropin-releasing hormone (GnRH) pulse generator function is investigated, for the first time, in ovariectomized rats at the level of mRNA expression of estrogen-responsive genes, e.g., estrogen receptor (ER), GnRH and its receptor (GnRHR). Rats were treated orally for 90 days either with a soy-free diet containing two different doses of puerarin (low dose of 600 mg/kg and high dose of 3000 mg/kg) or estradiol benzoate (E2B) at either low dose (4.3 mg/kg) or high dose (17.3 mg/kg). Levels of mRNA expression in the medial preoptic area/anterior hypothalamus (MPOA/AH), mediobasal hypothalamus/median eminence (MBH/ME) and adenohypophysis were measured by quantitative TaqMan® real-time RT-PCR. Plasma levels of luteinizing hormone (LH) and prolactin (PRL) were measured by radioimmunoassay. In the MPOA/AH, both puerarin and E2B decreased ERα mRNA levels without any significant changes in ERβ and GnRH mRNA levels. Both puerarin and E2B did not significantly alter the expression levels of ERα, ERβ and GnRHR in the MBH/ME. E2B exerted significant effects on the down-regulation of adenohypophyseal GnRHR mRNA transcripts and serum LH levels. Puerarin did not cause significant changes in pituitary GnRHR mRNA transcripts and serum LH and PRL levels. This is the first study to demonstrate that in ovariectomized rat models of ovarian hormone deprivation, puerarin acted as a weak estrogen-active compound in the hypothalamic GnRH pulse generator through the downregulation of MPOA/AH ERα mRNA expression.
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Affiliation(s)
- Panida Loutchanwoot
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang Sub-district, Kantarawichai District, Mahasarakham Province 44150, Thailand.
| | - Tina Vortherms
- Department of Endocrinology, Faculty of Medicine, University Medical Center Göttingen, Robert-Koch-Strasse 40, D-37075 Göttingen, Germany
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Antiosteoporotic activity of a syringic acid diet in ovariectomized mice. J Nat Med 2017; 71:632-641. [DOI: 10.1007/s11418-017-1105-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
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8
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Liu H, Li W, Ge X, Jia S, Li B. Coadministration of puerarin (low dose) and zinc attenuates bone loss and suppresses bone marrow adiposity in ovariectomized rats. Life Sci 2016; 166:20-26. [DOI: 10.1016/j.lfs.2016.09.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/17/2016] [Accepted: 09/28/2016] [Indexed: 01/09/2023]
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Loutchanwoot P, Vortherms T, Jarry H. Evaluation of in vivo estrogenic potency of natural estrogen-active chemical, puerarin, on pituitary function in gonadectomized female rats. Life Sci 2016; 165:75-82. [PMID: 27615593 DOI: 10.1016/j.lfs.2016.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2016] [Revised: 08/26/2016] [Accepted: 09/06/2016] [Indexed: 11/29/2022]
Abstract
AIMS Previous research has revealed that puerarin, the major phytoestrogen in tuberous roots of Pueraria lobata and Pueraria mirifica, acts as a selective estrogen receptor modulator that displays predominantly estrogenic potential for health benefit. However, little is known about the estrogenic potency of puerarin in pituitary, especially in the rat model of postmenopausal females. MAIN METHODS Plasma prolactin and growth hormone levels as well as mRNA expression levels of pituitary estrogen-regulated genes, such as estrogen receptor (ER) subtypes alpha (ERα) and beta (ERβ), truncated ER product-1 (TERP-1) and -2 (TERP-2) and gonadotropin alpha subunit, were examined using radioimmunoassay and TaqMan® real-time PCR, respectively. The effects were compared with the potent ER agonist, 17β-estradiol-3-benzoate (E2B), and both substances were supplemented at low and high doses, i.e., 0.6 or 3g puerarin and 0.0043 or 0.0173g E2B per kilogram of phytoestrogens-free rat chow, and applied to ovariectomized rats (five groups; 11-12 rats per group) for 12weeks. KEY FINDINGS Puerarin possessed weak E2B-like activities on pituitary function by acting as ERβ and TERP-1/-2 agonists, which resulted in the downregulation and upregulation of ERβ and TERP-1/-2 mRNA expressions, respectively, and elevation of growth hormone levels. There were trends of decreased levels of alpha subunit mRNA transcripts and increased levels of prolactin in puerarin-treated rats as observed in E2B-treated animals. SIGNIFICANCE This is the first report in ovariectomized rats the effects of puerarin on somatotropes and pituitary estrogen-responsive mRNA expressions, which are very weakly estrogenic by acting through ERβ- and TERP-1/-2 mediated pathways.
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Affiliation(s)
- Panida Loutchanwoot
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang Sub-district, Kantharawichai District, Mahasarakham Province 44150, Thailand.
| | - Tina Vortherms
- Department of Endocrinology, Faculty of Medicine, University Medical Center Göttingen, Robert-Koch-Strasse 40, D-37075 Göttingen, Germany
| | - Hubertus Jarry
- Department of Endocrinology, Faculty of Medicine, University Medical Center Göttingen, Robert-Koch-Strasse 40, D-37075 Göttingen, Germany
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Karvonen-Gutierrez C, Kim C. Association of Mid-Life Changes in Body Size, Body Composition and Obesity Status with the Menopausal Transition. Healthcare (Basel) 2016; 4:healthcare4030042. [PMID: 27417630 PMCID: PMC5041043 DOI: 10.3390/healthcare4030042] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/29/2016] [Accepted: 07/08/2016] [Indexed: 12/16/2022] Open
Abstract
The mid-life period is a critical window for increases in body weight and changes in body composition. In this review, we summarize the clinical experience of the menopausal transition by obesity status, and examine the evidence regarding the menopausal transition and reproductive hormones effects on body weight, body composition, or fat distribution. Mid-life obesity is associated with a different menopausal experience including associations with menstrual cycle length prior to the final menstrual period (FMP), age at the FMP, and higher prevalence of vasomotor symptoms. The menopausal transition is associated with weight gain and increased central body fat distribution; the majority of evidence suggests that changes in weight are due to chronological aging whereas changes in body composition and fat distribution are primarily due to ovarian aging. Continuous and regular physical activity during mid-life may be an efficacious strategy to counteract the age-related and menopause-related changes in resting energy expenditure and to prevent weight gain and abdominal adiposity deposition.
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Affiliation(s)
- Carrie Karvonen-Gutierrez
- Department of Epidemiology, School of Public Health, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Catherine Kim
- Departments of Medicine and Obstetrics & Gynecology, University of Michigan, Ann Arbor, MI 48109, USA.
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Anukulthanakorn K, Parhar IS, Jaroenporn S, Kitahashi T, Watanbe G, Malaivijitnond S. Neurotherapeutic Effects of Pueraria mirifica Extract in Early- and Late-Stage Cognitive Impaired Rats. Phytother Res 2016; 30:929-39. [PMID: 26915634 DOI: 10.1002/ptr.5595] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Revised: 01/24/2016] [Accepted: 01/30/2016] [Indexed: 12/28/2022]
Abstract
We determined the neurotherapeutic effects of Pueraria mirifica extract (PME) and pure puerarin (PU) in comparison with 17β-estradiol (E2 ) in early- and late-stage cognitive impaired rats. Rats were ovariectomized (OVX), kept for 2 and 4 months to induce early- and late-stage cognitive impairment, respectively, and divided into four groups that were treated daily with (i) distilled water, (ii) 100 mg/kg of PME, (iii) 7 mg/kg of PU, and (iv) 80 µg/kg of E2 for 4 months. The estrogen deficiency symptoms of OVX rats were abrogated by treatment with E2 or PME, but not by treatment with PU. The mRNA level of genes associated with amyloid production (App and Bace1) and hyperphosphorylated Tau (Tau4) were upregulated together with the level of impaired cognition in the 2- and 4-month OVX rats. Treatment with E2 reduced the level of cognitive impairment more than that with PME and PU, and 2-month OVX rats were more responsive than 4-month OVX rats. All treatments down-regulated the Bace1 mRNA level in 2-month OVX rats, while PU and PME also decreased the App mRNA level in 2- and 4-month OVX rats, respectively. Only PU suppressed Tau4 expression in 2-month OVX rats. Thus, PME and PU elicit neurotherapeutic effects in different pathways, and earlier treatment is optimal. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Kanya Anukulthanakorn
- Biological Sciences Program, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Ishwar S Parhar
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, PJ46150, Malaysia
| | - Sukanya Jaroenporn
- Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Takashi Kitahashi
- Brain Research Institute, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Bandar Sunway, PJ46150, Malaysia
| | - Gen Watanbe
- Laboratory of Veterinary Physiology, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Suchinda Malaivijitnond
- Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
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Abstract
Breast and uterine cancer are the most frequent female gender related neoplasms whose growth is mostly estrogen dependent. Therefore, any EDC exhibiting estrogenic effects may increase the risk of these two malignancies. This review focuses on the potential role of EDCs with estrogenic potential on the risk of breast and uterine neoplasms but also points to the possible role of the exposure to EDCs in the pathogenesis of ovarian and cervical cancer. It also underlines the necessity of informing the public about the presence of EDCs in common consumer products, their detrimental health effects and methods of reducing the exposure risk.
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Affiliation(s)
- Dominik Rachoń
- Department of Clinical and Experimental Endocrinology, Medical University of Gdańsk, Dębinki 7, 80-211, Gdańsk, Poland.
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Risk assessment for peri- and post-menopausal women taking food supplements containing isolated isoflavones. EFSA J 2015. [DOI: 10.2903/j.efsa.2015.4246] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Becker RA, Hays SM, Kirman CR, Aylward LL, Wise K. Interpreting Estrogen Screening Assays in the Context of Potency and Human Exposure Relative to Natural Exposures to Phytoestrogens. ACTA ACUST UNITED AC 2014; 101:114-24. [DOI: 10.1002/bdrb.21085] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 11/08/2013] [Indexed: 01/11/2023]
Affiliation(s)
| | | | | | | | - Kimberly Wise
- American Chemistry Council Washington District of Columbia
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Zhou YX, Zhang H, Peng C. Puerarin: a review of pharmacological effects. Phytother Res 2013; 28:961-75. [PMID: 24339367 DOI: 10.1002/ptr.5083] [Citation(s) in RCA: 401] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2013] [Revised: 09/18/2013] [Accepted: 11/03/2013] [Indexed: 12/27/2022]
Abstract
Puerarin is the major bioactive ingredient isolated from the root of the Pueraria lobata (Willd.) Ohwi, which is well known as Gegen (Chinese name) in traditional Chinese medicine. As the most abundant secondary metabolite, puerarin was isolated from Gegen in the late 1950s. Since then, its pharmacological properties have been extensively investigated. It is available in common foods and is used in alternative medicine. It has been widely used in the treatment of cardiovascular and cerebrovascular diseases, diabetes and diabetic complications, osteonecrosis, Parkinson's disease, Alzheimer's disease, endometriosis, and cancer. The beneficial effects of puerarin on the various medicinal purposes may be due to its wide spectrum of pharmacological properties such as vasodilation, cardioprotection, neuroprotection, antioxidant, anticancer, antiinflammation, alleviating pain, promoting bone formation, inhibiting alcohol intake, and attenuating insulin resistance. However, the direct molecular mechanisms and targets remain unclear. This review provides a comprehensive summary of the pharmacological effects of puerarin.
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Affiliation(s)
- Yan-Xi Zhou
- Key Laboratory of Standardization of Chinese Herbal Medicines of Ministry of Education, Pharmacy College, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, PR China; Department of Medicinal Botany, School of Pharmacy, Second Military Medical University, Shanghai, 200433, PR China
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Li F, Chow S, Cheung WH, Chan FL, Chen S, Leung LK. The citrus flavonone hesperetin prevents letrozole-induced bone loss in a mouse model of breast cancer. J Nutr Biochem 2013; 24:1112-6. [DOI: 10.1016/j.jnutbio.2012.08.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 08/03/2012] [Accepted: 08/13/2012] [Indexed: 11/16/2022]
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18
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Abstract
A high intake of fruits and vegetables is associated with a lower risk of cancer. In this context, considerable attention is paid to Asian populations who consume high amounts of soy and soy-derived isoflavones, and have a lower risk for several cancer types such as breast and prostate cancers than populations in Western countries. Hence, interest focuses on soyfoods, soy products, and soy ingredients such as isoflavones with regard to their possible beneficial effects that were observed in numerous experiments and studies. The outcomes of the studies are not always conclusive, are often contradictory depending on the experimental conditions, and are, therefore, difficult to interpret. Isoflavone research revealed not only beneficial but also adverse effects, for instance, on the reproductive system. This is also the case with tumor-promoting effects on, for example, breast tissue. Isoflavone extracts and supplements are often used for the treatment of menopausal symptoms and for the prevention of age-associated conditions such as cardiovascular diseases and osteoporosis in postmenopausal women. In relation to this, questions about the effectiveness and safety of isoflavones have to be clarified. Moreover, there are concerns about the maternal consumption of isoflavones due to the development of leukemia in infants. In contrast, men may benefit from the intake of isoflavones with regard to reducing the risk of prostate cancer. Therefore, this review examines the risks but also the benefits of isoflavones with regard to various kinds of cancer, which can be derived from animal and human studies as well as from in vitro experiments.
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Affiliation(s)
- Susanne Andres
- Department of Food Safety, Federal Institute for Risk Assessment, Berlin, Germany
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Bone-protective effects of bioactive fractions and ingredients in Sambucus williamsii HANCE. Br J Nutr 2011; 106:1802-9. [DOI: 10.1017/s0007114511002546] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Our previous study demonstrated that 60 % ethanol crude extract of Sambucus williamsii HANCE (SWH) improved bone mass, bone strength and bone micro-structure in both ovariectomised (OVX) rats and mice. The present study aims to identify the bioactive fractions and ingredients in SWH that account for its osteoprotective effects. Bilateral sham-operated mice acted as controls. OVX C57BL/6J mice, aged 12 weeks, were orally administrated daily with vehicle or 17β-oestradiol (3·2 mg/kg), SWH (60 % ethanol crude extract; 1·0 g/kg), SWA (water eluate; 0·570 g/kg), SWB (30 % ethanol eluate; 0·128 g/kg) or SWC (50 and 95 % ethanol eluates; 0·189 g/kg) for 12 weeks. The effects of the different fractions on bone properties in the OVX mice model were studied. In addition, their effects on osteoblast proliferation and differentiation were evaluated in UMR 106 cells. SWC significantly restored bone mineral density and improved bone size and bone content parameters in the femur and tibia as well as increased biomechanical strength at the tibia diaphysis in OVX mice. Similarly, SWC was the most potent fraction in stimulating cell proliferation and differentiation in UMR 106 cells. Also, SWC did not alter uterus weight in OVX mice. Nine major peaks, seven lignans and two phenolic acids, in the HPLC fingerprint of the SWC fraction were identified, isolated and characterised. In conclusion, the present study demonstrated that SWC was the most potent fraction in SWH that exerted anti-osteoporotic effects. Furthermore, lignans might be the potential bioactive components in SWC.
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Puerarin exhibits weak estrogenic activity in female rats. Fitoterapia 2010; 81:569-76. [DOI: 10.1016/j.fitote.2010.01.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Accepted: 01/22/2010] [Indexed: 12/18/2022]
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Rachoń D, Teede H. Ovarian function and obesity--interrelationship, impact on women's reproductive lifespan and treatment options. Mol Cell Endocrinol 2010; 316:172-9. [PMID: 19818376 DOI: 10.1016/j.mce.2009.09.026] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2008] [Revised: 09/02/2009] [Accepted: 09/28/2009] [Indexed: 11/30/2022]
Abstract
Insulin resistance (IR) is a consequence of obesity, and in women it is often inextricably linked with ovarian function leading to clinical reproductive manifestations such as early menarche onset, subfertility and polycystic ovary syndrome (PCOS). Likewise, the dramatic fall in oestrogen production after menopause may contribute to weight gain and changes in adipose tissue distribution. Overall, women who are obese, especially those with reproductive complications including PCOS, have been identified as specific high risk subgroups for further progression through to prediabetes, type 2 diabetes mellitus (T2DM) and potentially cardiovascular disease (CVD). This review focuses on the interrelationship between the ovarian function and obesity as well as its treatment strategies.
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Affiliation(s)
- Dominik Rachoń
- Department of Clinical Nutrition, Medical University of Gdańsk, Gdańsk, Poland.
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Brasil FB, Soares LL, Faria TS, Boaventura GT, Sampaio FJB, Ramos CF. The Impact of Dietary Organic and Transgenic Soy on the Reproductive System of Female Adult Rat. Anat Rec (Hoboken) 2009; 292:587-94. [DOI: 10.1002/ar.20878] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Rachoń D, Vortherms T, Seidlová-Wuttke D, Jarry H, Wuttke W. Dietary quercetin does not affect pituitary lutenizing hormone (LH) expression and has no uterotropic effects in ovariectomized Sprague–Dawley rats. Food Chem Toxicol 2008; 46:513-8. [PMID: 17905502 DOI: 10.1016/j.fct.2007.08.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2006] [Revised: 06/26/2007] [Accepted: 08/22/2007] [Indexed: 11/26/2022]
Abstract
INTRODUCTION The aim of this study was to investigate the potency of LH suppression and the uterotrophic effects of quercetin, a flavonoid widely present in our diet which in vitro has been shown to posses estrogenic properties. METHODS Fifty-nine female Sprague-Dawley (SD) rats were ovariectomized (ovx) and fed with soy-free rodent chow with the addition of quercetin or estradiol-3 benzoate (E2B). Quercetin was added to the rodent chow at the dose of 200mg/kg (n=12) and 1000 mg/kg (n=11) which on average corresponded to 3.55 mg and 18.42 mg per animal per day, respectively, and E2B at the dose of 4.3mg/kg (n=12) or 17.3mg/kg (n=12) which corresponded to 0.07 mg and 0.20 mg per animal per day, respectively. The control group (n=12) received soy-free chow only. After three months of treatment, animals were sacrificed and using real time RT-PCR, pituitary LHbeta and uterine insulin like growth factor (IGF)-1, progesterone receptor (PR) and complement 3 protein (C3) mRNA levels were measured. Additionally, the in vitro binding capacity of quercetin with a porcine cytosolic ER preparation was evaluated. RESULTS In contrast to E2B, dietary quercetin did not decrease pituitary LH expression, had no effects on uterine weight and uterine expression of estrogen regulated genes. The binding capacity of quercetin with the ERs was also 35000-fold lower compared with 17beta-estradiol (E2). CONCLUSION Our study shows that quercetin does not show any estrogenic effects in the pituitary and the uterus of the ovx SD rats.
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Affiliation(s)
- Dominik Rachoń
- Department of Immunology, Medical University of Gdańsk, ul. Debinki 1, 80-210 Gdańsk, Poland.
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Rachoń D, Vortherms T, Seidlová-Wuttke D, Menche A, Wuttke W. Uterotropic effects of dietary equol administration in ovariectomized Sprague-Dawley rats. Climacteric 2008; 10:416-26. [PMID: 17852145 DOI: 10.1080/13697130701624757] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
AIM The aim of the present study was to evaluate the uterotropic effects of the administration of dietary equol, a metabolite of soy-derived daidzein or formononetin present in red clover, in an ovariectomized rat model of menopause. METHOD Two doses of racemic equol were used (50 mg/kg of chow and 400 mg/kg of chow) and the results were compared with two doses of estradiol-3 benzoate (E2B) (4.3 mg/kg of chow and 17.3 mg/kg of chow). After 3 months, animals were sacrificed and the uteri were removed, weighed and paraffin-embedded for morphometrical and immunohistochemical evaluation. The expression of selected uterine estrogen-responsive genes was also measured using real-time reverse transcription-polymerase chain reaction. RESULTS Compared to controls, uterine weights in animals treated with high-dose equol were significantly higher, presented histologic features of mild estrogenic stimulation and had greater epithelial height and thickness of the uterine stroma and myometrium. Staining for the presence of the proliferating cell nuclear antigen (PCNA) also showed a greater prevalence of the PCNA-positive cells in the uterine stroma in animals treated with high-dose equol. Conversely, the percentage of PCNA-positive cells in the uterine epithelium was lower compared to the controls. Dietary high-dose equol treatment also increased significantly levels of uterine insulin-like growth factor 1, progesterone receptor and complement protein 3 mRNA. Although statistically significant, all these effects were, however, lower in magnitude compared to the effects of low- and high-dose E2B treatment. Low-dose equol did not have any effects on the above-studied parameters. CONCLUSION Long-term high-dose dietary equol administration to ovariectomized rats exerts uterotropic effects at the cellular and molecular level which question the safety of uncontrolled and unlimited consumption of soy or red clover supplements by postmenopausal women with intact uteri.
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Affiliation(s)
- D Rachoń
- Department of Clinical and Experimental Endocrinology, University of Göttingen, Göttingen, Germany
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