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AbouZeid EM, Hussein RA, Salama AA, Youssef FS, El-Ahmady SH, Ammar NM, Afifi AH. Metabolomic study of the estrogenic and anti-osteoporotic potential of Erythrina bidwillii leaf. Biomed Chromatogr 2024; 38:e5810. [PMID: 38146195 DOI: 10.1002/bmc.5810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/27/2023]
Abstract
Erythrina bidwillii Lindl., Leguminosae, constitutes a valuable crop for horticulture and medicine; however, it is rarely investigated. Menopause is a crucial transitional period in women's health. Women worldwide consider the use of phytoestrogens as a safe hormone replacement therapy to alleviate detrimental menopausal symptoms. Thus, the discovery of novel phytoestrogens is highly demanded. The present study aimed to investigate, for the first time, the metabolomic profile and the estrogenic potential of E. bidwillii Lindl. leaf. Ultra-performance liquid chromatography-electrospray ionization-tandem mass spectrometry and gas chromatography-mass spectrometry metabolite profiling revealed the prevalence of alkaloids, flavonoids, isoflavonoids and fatty acids. Additionally, five erythrinan alkaloids, cristanine A (1), 8-oxoerythraline (2), (+)-erythrinine (3), (+)-erythraline (4) and 8-oxoerythrinine (5), along with the isoflavonoid genistin (6), were isolated. Erythrina bidwillii leaf extract exhibited significant in vivo estrogenic, anti-osteoporotic, anti-hyperlipidemic, hepatoprotective, and nephroprotective activities, utilizing ovariectomized rat model. Moreover, ethyl acetate and hexane fractions possessed significant in vitro estrogeic potential on MCF-7 cell lines. An in silico study of the isolated metabolites revealed that (+)-erythrinine (3) and 8-oxoerythrinine (5) exhibited the highest affinity for ERα and ERβ, respectively, modeling them as potential estrogenic lead metabolites. Therefore, E. bidwillii leaf could be employed as promising hormone replacement therapy for postmenopausal women after thorough clinical trials.
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Affiliation(s)
- Enaam M AbouZeid
- Department of Pharmacognosy, National Research Centre, Giza, Egypt
| | - Rehab A Hussein
- Department of Pharmacognosy, National Research Centre, Giza, Egypt
| | - Abeer A Salama
- Department of Pharmacology, National Research Centre, Giza, Egypt
| | - Fadia S Youssef
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Sherweit H El-Ahmady
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | | | - Ahmed H Afifi
- Department of Pharmacognosy, National Research Centre, Giza, Egypt
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2
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Matten S, Fallacara D, Kamel A, Lynn SG, Fort DJ, Wolf JC, Leak T, von Holst H, Bever RJ, Thomas A, Brown VJ. Evaluation of multigenerational effects of 2-ethylhexyl 4-hydroxybenzoate in Japanese medaka. J Appl Toxicol 2023; 43:1645-1666. [PMID: 37340691 DOI: 10.1002/jat.4502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 05/23/2023] [Accepted: 05/23/2023] [Indexed: 06/22/2023]
Abstract
The Japanese medaka (Oryzias latipes) extended one-generation reproduction test (MEOGRT) (Test Guideline 890.2200) is a Tier 2 test within the Endocrine Disruptor Screening Program of the US Environmental Protection Agency (US EPA). A modified MEOGRT was used to evaluate multigenerational effects of 2-ethylhexyl 4-hydroxybenzoate (2-EHHB) under flow-through conditions starting with adults (parent generation, F0) through a 3-week reproductive phase of the second generation (F2). Fish were exposed to one of five 2-EHHB test concentrations or a dechlorinated tap water control. Fecundity was affected at the lowest exposure (5.32 μg/L) and greater sensitivity occurred in the F1 and F2 generations. Percent fertility was also diminished from no effect level observed in the F0 generation to 101 and 48.8 μg/L in the F1 and F2 generations, respectively. Growth indices were decreased for F0 adult females and F1 subadults and adults at 48.8 μg/L 2-EHHB. Histopathologic examination of gonads, liver, kidney, and thyroid yielded possible delayed reproductive tract development in F1 subadult males, masculinization of the renal phenotype in F1 adult females (renal tubular eosinophilia) and reduced hepatic energy storage (liver glycogen vacuoles) in F1 (11.3 and 48.8 μg/L) and F2 (48.8 and 101 μg/L) males and females, respectively. Endocrine-related findings included a decrease in anal fin papillae in F2 adult males at 101 μg/L. Results of this study demonstrate effects on growth, development, and reproduction that may be mediated by endocrine (weak estrogenic) and nonendocrine mechanisms. Duration of the MEOGRT should not be routinely extended beyond the OCSPP 890 guideline study design.
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Affiliation(s)
- Sharlene Matten
- Office of Chemical Safety and Pollution Prevention, United States Environmental Protection Agency, Washington, DC, USA
| | | | - Alaa Kamel
- Office of Chemical Safety and Pollution Prevention, United States Environmental Protection Agency, Washington, DC, USA
| | - Scott G Lynn
- Office of Chemical Safety and Pollution Prevention, United States Environmental Protection Agency, Washington, DC, USA
| | - Douglas J Fort
- Fort Environmental Laboratories, Stillwater, Oklahoma, USA
| | - Jeffrey C Wolf
- Experimental Pathology Laboratories, Inc, Sterling, Virginia, USA
| | - Tom Leak
- Formerly with Eurofins, Columbia, Missouri, USA
| | | | - Ronnie Joe Bever
- Office of Chemical Safety and Pollution Prevention, United States Environmental Protection Agency, Washington, DC, USA
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Baynes A, Lange A, Beresford N, Bryden E, Whitlock K, Tyler CR, Jobling S. Endocrine Disruption Is Reduced but Still Widespread in Wild Roach ( Rutilus rutilus) Living in English Rivers. Environ Sci Technol 2023; 57:12632-12641. [PMID: 37595157 DOI: 10.1021/acs.est.3c02854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/20/2023]
Abstract
Endocrine disruption of wild fish, primarily resulting in the feminization of males, has been reported in English river sites for several decades. Estrogenic activity emanating from wastewater treatment works (WwTW) has been conclusively demonstrated to be the main driver of these feminized phenotypes. Here, we revisit 10 English river sites previously surveyed in the late 1990s and early 2000s to assess how the frequency and severity of feminization now compare with the historical surveys. In the contemporary assessment, 60% of the sites revisited still showed endocrine disruption at the tissue organization level (oocytes present in otherwise male gonads; intersex) and 90% of sites had average male plasma vitellogenin concentrations (female-specific yolk protein; a sensitive biomarker of estrogen exposure) above natural baseline levels. In contrast to the historic surveys, none of the males sampled in the contemporary survey had ovarian cavities. At one of the larger WwTW, improvements to treatment technology may have driven a significant reduction in intersex induction, whereas at several of the smaller WwTW sites, the frequencies of feminization did not differ from those observed in the late 1990s. In conclusion, we show that although the severity of feminization is now reduced at many of the revisited sites, endocrine-disrupting chemicals are still impacting wild fish living downstream of WwTW in England.
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Affiliation(s)
- Alice Baynes
- Environmental Sciences, College of Health, Medicine, and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, U.K
| | - Anke Lange
- Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX4 4QD, U.K
| | - Nicola Beresford
- Environmental Sciences, College of Health, Medicine, and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, U.K
| | - Euan Bryden
- Environmental Sciences, College of Health, Medicine, and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, U.K
| | - Katie Whitlock
- Environment Agency, Horizon House, Deanery Road, Bristol BS1 5AH, U.K
| | - Charles R Tyler
- Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX4 4QD, U.K
| | - Susan Jobling
- Environmental Sciences, College of Health, Medicine, and Life Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, U.K
- College of Business, Arts and Social Sciences, Brunel University London, Uxbridge, Middlesex UB8 3PH, U.K
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Patel DK, Patel K. Biological Potential of Kakkalide in medicine for the Treatment of Human disorders: An Overview of Pharmacological aspects. Curr Drug Res Rev 2023; 15:CDRR-EPUB-134018. [PMID: 37622718 DOI: 10.2174/2589977515666230824152740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 05/04/2023] [Accepted: 06/05/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Pueraria lobata is an important herbal medicine of Fabaceae family that has been clinically used in Traditional Chinese Medicine to counteract human disorders and associated secondary complications. Kakkalide also called irisolidone 7-xylosylglucoside is an isoflavonoid of Puerariae flos, Pueraria lobata and Flos Puerariae. Moreover, Kakkalide has a wide range of bioactivities in medicine. METHODS Biological potential of kakkalide was investigated in the present work through scientific data analysis of different scientific research work on kakkalide in order to know its therapeutic potential in medicine. Scientific data on Pueraria lobata were collected and analyzed in the present work. All the scientific data were collected from Google, Google Scholar, Scopus, and Science Direct in the present work. RESULTS Scientific data analysis of kakkalide revealed its biological importance and therapeutic potential in medicine. The present investigation signified kakkalide's effectiveness in inflammatory diseases, prostaglandin E2 production, liver complication, gastric injury, alcoholism, insulin-resistant endothelial dysfunction, aldose reductase enzyme, hyperlipidemia, estrogenic activity, and stroke. In addition, the bioavailability of kakkalide was also discussed in the present paper. Present work also revealed the significance of analytical techniques for the separation, isolation and identification of kakkalide in different biological and non-biological samples. CONCLUSION Present paper signified the health-beneficial aspects of kakkalide in medicine.
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Affiliation(s)
- Dinesh Kumar Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India
| | - Kanika Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India
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Ebada MA, Mostafa A, Gadallah AA, Alkanj S, Alghamdi BS, Ashraf GM, Abuzenadah AM, Alserihi RF, Wadaa-Allah A, Salama M. Potential Regulation of miRNA-29 and miRNA-9 by Estrogens in Neurodegenerative Disorders: An Insightful Perspective. Brain Sci 2023; 13. [PMID: 36831786 DOI: 10.3390/brainsci13020243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/17/2022] [Accepted: 11/18/2022] [Indexed: 02/04/2023] Open
Abstract
Finding a link between a hormone and microRNAs (miRNAs) is of great importance since it enables the adjustment of genetic composition or cellular functions without needing gene-level interventions. The dicer-mediated cleavage of precursor miRNAs is an interface link between miRNA and its regulators; any disruption in this process can affect neurogenesis. Besides, the hormonal regulation of miRNAs can occur at the molecular and cellular levels, both directly, through binding to the promoter elements of miRNAs, and indirectly, via regulation of the signaling effects of the post-transcriptional processing proteins. Estrogenic hormones have many roles in regulating miRNAs in the brain. This review discusses miRNAs, their detailed biogenesis, activities, and both the general and estrogen-dependent regulations. Additionally, we highlight the relationship between miR-29, miR-9, and estrogens in the nervous system. Such a relationship could be a possible etiological route for developing various neurodegenerative disorders.
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Patel K, Patel DK. The Potential Therapeutic Properties of Prunetin against Human Health Complications: A Review of Medicinal Importance and Pharmacological Activities. Drug Metab Bioanal Lett 2022; 15:166-177. [PMID: 36098409 DOI: 10.2174/2949681015666220912104743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 05/28/2022] [Accepted: 06/03/2022] [Indexed: 12/15/2022]
Abstract
BACKGROUND Flavonoids are polyphenolic compounds found to be present in nature and abundant in flowers and fruits. Flavonoidal class phytochemicals have gained interest in the scientific field because of their important pharmacological activities. Several scientific studies have revealed anti-bacterial, anti-oxidant, anti-fungal, analgesic, anti-viral, anti-inflammatory, anti-tumor, anti-parasitic and anti-allergic activities of flavonoidal class phytochemicals. Prunetin is an O-methylated isoflavone that belongs to the phytochemical phytoestrogen class, found to be present in licorice, red cherry, soybean and legumes. METHODS Biological potential and pharmacological activities of prunetin have been investigated in the present work through scientific data analysis of numerous scientific research works. Numerous literature databases have been searched in order to collect the scientific information on prunetin in the present work. Pharmacological activities of prunetin have been investigated in the present work through literature data analysis of different scientific research works. Scientific data have been collected from Google Scholar, Google, PubMed, Science Direct and Scopus. Analytical data on prunetin has been collected from literature sources and analyzed in the present work. RESULTS Scientific data analysis revealed the biological importance of prunetin in medicine. Prunetin was found to be present in the pea, peach, Oregon cherry, skimmed cheese, cheese, cow kefir and goat kefir. Prunetin is also present in the Prunus avium, Andira surinamensis, Butea superba, Dalbergia sympathetica, Ficus nervosa, Pterospartum tridentatum and Pycnanthus angolensis. Pharmacological data analysis revealed the biological importance of prunetin on bone disorders, cancers, especially hepatocellular carcinoma, urinary bladder cancer, gastric cancer, ovarian cancer, human airway, gut health and enzymes. Scientific data analysis revealed biological effectiveness of prunetin for their angiogenic effects, anti-inflammatory, anti-oxidant, antimicrobial, estrogenic and vasorelaxant potential. Analytical data revealed the importance of modern analytical techniques for qualitative and quantitative analysis of prunetin in the scientific fields. CONCLUSION Scientific data analysis in the present investigation revealed the biological importance and pharmacological activities of prunetin in medicine.
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Affiliation(s)
- Kanika Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pardesh, India
| | - Dinesh Kumar Patel
- Department of Pharmaceutical Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pardesh, India
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Hu HC, Tsai YH, Chuang YC, Lai KH, Hsu YM, Hwang TL, Lin CC, Fülöp F, Wu YC, Yu SY, Kuo YT, Chang FR. Estrogenic and anti-neutrophilic inflammatory phenanthrenes from Juncus effusus L. Nat Prod Res 2021; 36:3043-3053. [PMID: 34498976 DOI: 10.1080/14786419.2021.1954644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Juncus effusus L. (J. effusus) is a Traditional Chinese Medicine (TCM) that has long been used for dealing with gynaecological disorders, such as relieving insomnia, preventing tinnitus, reducing edema with diuretic effect. In our course of evidence-based medical research focused on this herb, one new phenanthrene, Junfusol B (2), together with seventeen known compounds were isolated and identified. All the structures of these compounds were elucidated by spectroscopic methods. The absolute stereochemistry of compounds 1 and 2 was further determined by comparing their calculated and experimental Electronic Circular Dichroism (ECD) spectra and optical rotation (OR) values. The isolates were evaluated for their estrogenic and anti-inflammatory activities which were considered as relevant etiological factors of insomnia, tinnitus and edema in the ancient TCM theory. The results revealed that most of the obtained phenanthrenes in this work were found exerting agonistic effects on estrogen receptor. This is the first report to declare the exact estrogen-regulating potential among this type of compounds from J. effusus. Moreover, phenanthrenes 3 - 7 exhibited significant inhibitions on superoxide anion generation and elastase release in fMLP/CB-induced human neutrophilic inflammation model. J. effusus may be developed as a complementary agent utilized in menopausal multiple syndromes.
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Affiliation(s)
- Hao-Chun Hu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary
| | - Yi-Hong Tsai
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Che Chuang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuei-Hung Lai
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Yu-Ming Hsu
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Biological Science & Technology, Meiho University, Pingtung, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Research Center for Chinese Herbal Medicine, Research Center for Food and Cosmetic Safety, and Graduate Institute of Health Industry Technology, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan, Taiwan.,Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chih-Chan Lin
- Department of Medical Research, Chi-Mei Medical Center, Tainan, Taiwan
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry, University of Szeged, Szeged, Hungary.,MTA-SZTE Stereochemistry Research Group Hungarian Academy of Sciences, Szeged, Hungary
| | - Yang-Chang Wu
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan.,Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung, Taiwan
| | - Szu-Yin Yu
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Ting Kuo
- Department of Medical Imaging, Chi Mei Medical Center, Tainan, Taiwan.,Department of Medical Imaging, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.,Department of Radiology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan.,Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung Taiwan
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Aliyev AT, Ozcan-Sezer S, Akdemir A, Gurer-Orhan H. In vitro evaluation of estrogenic, antiestrogenic and antitumor effects of amentoflavone. Hum Exp Toxicol 2021; 40:1510-1518. [PMID: 33678040 DOI: 10.1177/0960327121999454] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Apigenin, a flavonoid, is reported to act as an estrogen receptor (ER) agonist and inhibit aromatase enzyme. However, amentoflavone, a biflavonoid bearing two apigenin molecules, has not been evaluated for its endocrine modulatory effects. Besides, it is highly consumed by young people to build muscles, enhance mood and lose weight. In the present study, apigenin was used as a reference molecule and ER mediated as well as ER-independent estrogenic/antiestrogenic activity of amentoflavone was investigated. Antitumor activity of amentoflavone was also investigated in both ER positive (MCF-7 BUS) and triple-negative (MDA-MB-231) breast cancer cells and its cytotoxicity was evaluated in human breast epithelial cells (MCF-10A). Our data confirmed ER agonist, aromatase inhibitory and cytotoxic effects of apigenin in breast cancer cells, where no ER mediated estrogenic effect and physiologically irrelevant, slight, aromatase inhibition was found for amentoflavone. Although selective cytotoxicity of amentoflavone was found in MCF-7 BUS cells, it does not seem to be an alternative to the present cytotoxic drugs. Therefore, neither an adverse effect, mediated by an estrogenic/antiestrogenic effect of amentoflavone nor a therapeutical benefit would be expected from amentoflavone. Further studies could be performed to investigate its in vivo effects.
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Affiliation(s)
- A T Aliyev
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, 37509Ege University, Izmir, Turkey
| | - S Ozcan-Sezer
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, 37509Ege University, Izmir, Turkey
| | - A Akdemir
- Computer-Aided Drug Discovery Laboratory, Department of Pharmacology, Faculty of Pharmacy, 221265Bezmialem Vakif University, Istanbul, Turkey
| | - H Gurer-Orhan
- Department of Pharmaceutical Toxicology, Faculty of Pharmacy, 37509Ege University, Izmir, Turkey
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Bernstein N, Akram M, Yaniv-Bachrach Z, Daniyal M. Is it safe to consume traditional medicinal plants during pregnancy? Phytother Res 2020; 35:1908-1924. [PMID: 33164294 DOI: 10.1002/ptr.6935] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 10/04/2020] [Accepted: 10/18/2020] [Indexed: 12/24/2022]
Abstract
The popularity of natural medicine is growing worldwide. Unlike conventional licensed medicines, herbal medicine practices are usually not supported by effectiveness, efficacy, or safety studies, which raise concerns about potential risks involved in their usage, particularly in high-risk patients such as pregnant women where teratogenicity is a concern. Despite a lack of science-based evidence, the use of herbal products for the management of pregnancy-associated challenges is common, due to the common notion that they are free of toxic effects and adverse reactions because they are "natural." The lack of concern about utilizing herbal remedies during pregnancy is strengthened by the lack of regulation in most countries for their marketing. However, plant-based remedies are not free of adverse reactions. Medicinal plants and herbal remedies contain substances that can be toxic to the human body and the fetus. Potential effects of indiscriminate use of medicinal plants are embryotoxicity, teratogenic, and abortifacient effects. Some plant constituents can cross the placenta and reach the fetus. Phytochemicals and their metabolites are known to induce stimulation of uterine contraction and hormone imbalance that could result in abortion. The alterations to the hormonal profile can affect conception, induce teratogenic activity, and halt the pregnancy or produce a congenital malformation. Due to the wide range of modes of action of phytochemicals, some medicinal plants may be safe to use during certain trimesters of pregnancy and harmful at other stages. This manuscript reviews available scientific information concerning potential health hazards associated with the consumption of herbal medicines during pregnancy, highlighting those herbs that should be avoided due to their potential abortifacient and/or teratogenic activity. We focused on plants that were tested by preclinical studies, and studies of these plants are summarized. Common therapeutic use of these herbs, estimated effects, toxicological effects, and animal studies of these plants is summarized. The literature reviewed suggests that consumption of the following medicinal plants should be avoided during pregnancy: Abrus precatorius, Achyranthes aspera, Ailanthus excelsa, Aloe vera, Aristolochia indica, Areca catechu, Bambusa vulgaris, Cassia occidentalis, Cicer arietinum, Cimicifuga racemose, Dolichandrone falcate, Ginkgo biloba, Hydrastis canadensis, Indigofera trifoliate, Lavandula latifolia, Maytenus ilicifolia, Momordica cymbalaria, Moringa oleifera, Musa rosacea, Oxalis corniculate, Phytolacca dodecandra, Plumeria rubra, Ricinus communis, Ruta graveolens, Stachys lavandulifolia, Senna alata, Trigonella foenum-graecum, Vitus agnus-castus, and Valeriana officinalis.
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Affiliation(s)
- Nirit Bernstein
- Institute of Soil, Water and Environmental Sciences, Volcani Center, Rishon LeZion, Israel
| | - Muhammad Akram
- Department of Eastern Medicine, Government College University Faisalabad, Faisalabad, Pakistan
| | | | - Muhammad Daniyal
- TCM and Ethnomedicine Innovation & Development Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha, China.,College of Biology, Hunan Province Key Laboratory of Plant Functional Genomics and Developmental Regulation, Hunan University, Changsha, China
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Domínguez-López I, Yago-Aragón M, Salas-Huetos A, Tresserra-Rimbau A, Hurtado-Barroso S. Effects of Dietary Phytoestrogens on Hormones throughout a Human Lifespan: A Review. Nutrients 2020; 12:E2456. [PMID: 32824177 PMCID: PMC7468963 DOI: 10.3390/nu12082456] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/31/2020] [Accepted: 08/12/2020] [Indexed: 02/07/2023] Open
Abstract
Dietary phytoestrogens are bioactive compounds with estrogenic activity. With the growing popularity of plant-based diets, the intake of phytoestrogen-rich legumes (especially soy) and legume-derived foods has increased. Evidence from preclinical studies suggests these compounds may have an effect on hormones and health, although the results of human trials are unclear. The effects of dietary phytoestrogens depend on the exposure (phytoestrogen type, matrix, concentration, and bioavailability), ethnicity, hormone levels (related to age, sex, and physiological condition), and health status of the consumer. In this review, we have summarized the results of human studies on dietary phytoestrogens with the aim of assessing the possible hormone-dependent outcomes and health effects of their consumption throughout a lifespan, focusing on pregnancy, childhood, adulthood, and the premenopausal and postmenopausal stages. In pregnant women, an improvement of insulin metabolism has been reported in only one study. Sex hormone alterations have been found in the late stages of childhood, and goitrogenic effects in children with hypothyroidism. In premenopausal and postmenopausal women, the reported impacts on hormones are inconsistent, although beneficial goitrogenic effects and improved glycemic control and cardiovascular risk markers have been described in postmenopausal individuals. In adult men, different authors report goitrogenic effects and a reduction of insulin in non-alcoholic fatty liver patients. Further carefully designed studies are warranted to better elucidate the impact of phytoestrogen consumption on the endocrine system at different life stages.
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Affiliation(s)
- Inés Domínguez-López
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
| | - Maria Yago-Aragón
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
| | - Albert Salas-Huetos
- Andrology and IVF Laboratory, Division of Urology, Department of Surgery, University of Utah School of Medicine, Salt Lake City, UT 84108, USA;
| | - Anna Tresserra-Rimbau
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Unitat de Nutrició, Departament de Bioquímica i Biotecnologia, Universitat Rovira i Virgili, 43204 Reus, Spain
- Institut d’Investigació Sanitària Pere Virgili (IISPV), 43201 Reus, Spain
| | - Sara Hurtado-Barroso
- Department of Nutrition, Food Science and Gastronomy, XaRTA, INSA, School of Pharmacy and Food Sciences, University of Barcelona, 08028 Barcelona, Spain; (I.D.-L.); (M.Y.-A.); (S.H.-B.)
- Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
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Mallia V, Ivanova L, Eriksen GS, Harper E, Connolly L, Uhlig S. Investigation of In Vitro Endocrine Activities of Microcystis and Planktothrix Cyanobacterial Strains. Toxins (Basel) 2020; 12:toxins12040228. [PMID: 32260386 PMCID: PMC7232361 DOI: 10.3390/toxins12040228] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/29/2020] [Accepted: 04/01/2020] [Indexed: 12/29/2022] Open
Abstract
Cyanobacteria are cosmopolitan photosynthetic prokaryotes that can form dense accumulations in aquatic environments. They are able to produce many bioactive metabolites, some of which are potentially endocrine disrupting compounds, i.e., compounds that interfere with the hormonal systems of animals and humans. Endocrine disruptors represent potential risks to both environmental and human health, making them a global challenge. The aim of this study was to investigate the potential endocrine disrupting activities with emphasis on estrogenic effects of extracts from cultures of Microcystis or Planktothrix species. We also assessed the possible role of microcystins, some of the most studied cyanobacterial toxins, and thus included both microcystin-producing and non-producing strains. Extracts from 26 cyanobacterial cultures were initially screened in estrogen-, androgen-, and glucocorticoid-responsive reporter-gene assays (RGAs) in order to identify endocrine disruption at the level of nuclear receptor transcriptional activity. Extracts from selected strains were tested repeatedly in the estrogen-responsive RGAs, but the observed estrogen agonist and antagonist activity was minor and similar to that of the cyanobacteria growth medium control. We thus focused on another, non-receptor mediated mechanism of action, and studied the 17β-estradiol (natural estrogen hormone) biotransformation in human liver microsomes in the presence or absence of microcystin-LR (MC-LR), or an extract from the MC-LR producing M. aeruginosa PCC7806 strain. Our results show a modulating effect on the estradiol biotransformation. Thus, while 2-hydroxylation was significantly decreased following co-incubation of 17β-estradiol with MC-LR or M. aeruginosa PCC7806 extract, the relative concentration of estrone was increased.
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MESH Headings
- Bacterial Toxins/metabolism
- Bacterial Toxins/toxicity
- Biotransformation
- Cell Line, Transformed
- Endocrine Disruptors/metabolism
- Endocrine Disruptors/toxicity
- Estradiol/metabolism
- Estrogens/metabolism
- Estrogens/pharmacology
- Genes, Reporter
- Humans
- Kinetics
- Microcystis/metabolism
- Microsomes, Liver/drug effects
- Microsomes, Liver/enzymology
- Planktothrix/metabolism
- Receptors, Androgen/drug effects
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- Receptors, Estrogen/drug effects
- Receptors, Estrogen/genetics
- Receptors, Estrogen/metabolism
- Receptors, Glucocorticoid/drug effects
- Receptors, Glucocorticoid/genetics
- Receptors, Glucocorticoid/metabolism
- Risk Assessment
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Affiliation(s)
- Vittoria Mallia
- Toxinology Research Group, Norwegian Veterinary Institute, Ullevålsveien 68, N-0454 Oslo, Norway; (L.I.); (G.S.E.); (S.U.)
- Department of Chemistry, University of Oslo, P.O. Box 1033, N-0315 Oslo, Norway
- Correspondence: or
| | - Lada Ivanova
- Toxinology Research Group, Norwegian Veterinary Institute, Ullevålsveien 68, N-0454 Oslo, Norway; (L.I.); (G.S.E.); (S.U.)
| | - Gunnar S. Eriksen
- Toxinology Research Group, Norwegian Veterinary Institute, Ullevålsveien 68, N-0454 Oslo, Norway; (L.I.); (G.S.E.); (S.U.)
| | - Emma Harper
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, Belfast BT9 5DL, UK; (E.H.); (L.C.)
| | - Lisa Connolly
- Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, Belfast BT9 5DL, UK; (E.H.); (L.C.)
| | - Silvio Uhlig
- Toxinology Research Group, Norwegian Veterinary Institute, Ullevålsveien 68, N-0454 Oslo, Norway; (L.I.); (G.S.E.); (S.U.)
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12
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Ávila-Gálvez MÁ, Espín JC, González-Sarrías A. Physiological Relevance of the Antiproliferative and Estrogenic Effects of Dietary Polyphenol Aglycones versus Their Phase-II Metabolites on Breast Cancer Cells: A Call of Caution. J Agric Food Chem 2018; 66:8547-8555. [PMID: 30025453 DOI: 10.1021/acs.jafc.8b03100] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
While preclinical studies suggest the breast cancer (BC) chemopreventive effects of dietary polyphenols, the human evidence is still very weak. The huge existing in vitro-in vivo gap is mainly due to the plethora of potential effects reported by in vitro studies that usually assay polyphenols as occurring in the food (beverages, extracts, foods) and/or derived aglycone metabolites with doubtful physiological relevance. Since phase-II metabolites can reach systemic tissues such as malignant breast tumors, we aimed here to compare for the first time the antiproliferative and estrogenic/antiestrogenic effects of dietary polyphenols and microbiota-derived metabolites (i.e., resveratrol, dihydroresveratrol, urolithins (A, B, and Isourolithin A), and the flavanone hesperetin), with those effects exerted by their physiologically relevant glucuronides and sulfates on human BC cell lines (MDA-MB-231 and MCF-7). Results showed that aglycones exerted dose-dependent antiproliferative and estrogenic/antiestrogenic activities, but both their glucuronide and sulfate conjugates lacked these activities. In addition, aglycones underwent phase-II metabolism in BC cells, mainly via sulfation, which determined the cell-dependent differences in the effects observed. Therefore, phase-II metabolism limits the antiproliferative, estrogenic, and antiestrogenic activities of dietary polyphenols on BC cells. Likewise, as a call of caution, enthusiasm should be limited for publishing effects that are not physiologically relevant.
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Affiliation(s)
- María Ángeles Ávila-Gálvez
- Laboratory of Food and Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology , CEBAS-CSIC , P.O. Box 164, Campus de Espinardo , Murcia 30100 , Spain
| | - Juan Carlos Espín
- Laboratory of Food and Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology , CEBAS-CSIC , P.O. Box 164, Campus de Espinardo , Murcia 30100 , Spain
| | - Antonio González-Sarrías
- Laboratory of Food and Health, Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology , CEBAS-CSIC , P.O. Box 164, Campus de Espinardo , Murcia 30100 , Spain
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13
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Axelstad M, Hass U, Scholze M, Christiansen S, Kortenkamp A, Boberg J. EDC IMPACT: Reduced sperm counts in rats exposed to human relevant mixtures of endocrine disrupters. Endocr Connect 2018; 7:139-148. [PMID: 29203468 PMCID: PMC5776667 DOI: 10.1530/ec-17-0307] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 11/28/2017] [Indexed: 11/08/2022]
Abstract
Human semen quality is declining in many parts of the world, but the causes are ill defined. In rodents, impaired sperm production can be seen with early life exposure to certain endocrine-disrupting chemicals, but the effects of combined exposures are not properly investigated. In this study, we examined the effects of early exposure to the painkiller paracetamol and mixtures of human relevant endocrine-disrupting chemicals in rats. One mixture contained four estrogenic compounds; another contained eight anti-androgenic environmental chemicals and a third mixture contained estrogens, anti-androgens and paracetamol. All exposures were administered by oral gavage to time-mated Wistar dams rats (n = 16-20) throughout gestation and lactation. In the postnatal period, testicular histology was affected by the total mixture, and at the end of weaning, male testis weights were significantly increased by paracetamol and the high doses of the total and the anti-androgenic mixture, compared to controls. In all dose groups, epididymal sperm counts were reduced several months after end of exposure, i.e. at 10 months of age. Interestingly, the same pattern of effects was seen for paracetamol as for mixtures with diverse modes of action. Reduced sperm count was seen at a dose level reflecting human therapeutic exposure to paracetamol. Environmental chemical mixtures affected sperm count at the lowest mixture dose indicating an insufficient margin of safety for the most exposed humans. This causes concern for exposure of pregnant women to paracetamol as well as environmental endocrine disrupters.
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Affiliation(s)
- M Axelstad
- Technical University of DenmarkNational Food Institute, Kongens Lyngby, Denmark
| | - U Hass
- Technical University of DenmarkNational Food Institute, Kongens Lyngby, Denmark
| | | | - S Christiansen
- Technical University of DenmarkNational Food Institute, Kongens Lyngby, Denmark
| | | | - J Boberg
- Technical University of DenmarkNational Food Institute, Kongens Lyngby, Denmark
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14
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Khan D, Ahmed SA. Epigenetic Regulation of Non-Lymphoid Cells by Bisphenol A, a Model Endocrine Disrupter: Potential Implications for Immunoregulation. Front Endocrinol (Lausanne) 2015; 6:91. [PMID: 26097467 PMCID: PMC4456948 DOI: 10.3389/fendo.2015.00091] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/16/2015] [Indexed: 02/06/2023] Open
Abstract
Endocrine disrupting chemicals (EDC) abound in the environment since many compounds are released from chemical, agricultural, pharmaceutical, and consumer product industries. Many of the EDCs such as Bisphenol A (BPA) have estrogenic activity or interfere with endogenous sex hormones. Experimental studies have reported a positive correlation of BPA with reproductive toxicity, altered growth, and immune dysregulation. Although the precise relevance of these studies to the environmental levels is unclear, nevertheless, their potential health implications remain a concern. One possible mechanism by which BPA can alter genes is by regulating epigenetics, including microRNA, alteration of methylation, and histone acetylation. There is now wealth of information on BPA effects on non-lymphoid cells and by comparison, paucity of data on effects of BPA on the immune system. In this mini review, we will highlight the BPA regulation of estrogen receptor-mediated immune cell functions and in different inflammatory conditions. In addition, BPA-mediated epigenetic regulation of non-lymphoid cells is emphasized. We recognize that most of these studies are on non-lymphoid cells, and given that BPA also affects the immune system, it is plausible that BPA could have similar epigenetic regulation in immune cells. It is hoped that this review will stimulate studies in this area to ascertain whether or not BPA epigenetically regulates the cells of the immune system.
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Affiliation(s)
- Deena Khan
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, USA
- Present address: Deena Khan, Division of Experimental Hematology, Cancer and Blood Diseases Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, USA
| | - S. Ansar Ahmed
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, USA
- *Correspondence: S. Ansar Ahmed, Department of Biomedical Sciences and Pathobiology, VMCVM, Virginia Tech, Phase II, Duck Pond Drive, Blacksburg, VA 24060, USA,
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15
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Sood N, Nigam JS, Goyal G, Ranjan R. Virilizing ovarian fibrothecoma with minor sex cord elements in a 13 year old girl: a rare case. Pediatr Rep 2014; 6:5447. [PMID: 25635214 PMCID: PMC4292058 DOI: 10.4081/pr.2014.5447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 07/03/2014] [Accepted: 07/23/2014] [Indexed: 11/23/2022] Open
Abstract
Fibrothecoma accounts for 3-4% of all ovarian neoplasms; it is usually hormonally inactive, but can be estrogenic or sometimes androgenic (11%); it is rare under 30 years. In a very few cases, minor sex cord elements (less than 10% of the tumor area) are present; therefore, it is considered as a separate subgroup of stromal tumors. The importance of immunohistochemistry in recognizing this kind of tumor has been fully documented, with variable results on inhibin staining, but specific positivity for calretenin in such cases. We report here the rare case of a 13-year-old child with ovarian fibrothecoma and minor sex cord stromal elements, who showed negativity for inhibin and positivity for calretenin.
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Affiliation(s)
- Neelam Sood
- Department of Pathology, Deen Dayal Upadhyay Hospital , Hari Nagar, New Delhi
| | - Jitendra Singh Nigam
- Department of Pathology, Saraswathi Institute of Medical Sciences , Anwarpur, Hapur, UP
| | - Geetika Goyal
- Department of Pathology, Deen Dayal Upadhyay Hospital , Hari Nagar, New Delhi
| | - Reeta Ranjan
- Department of Obstetric And Gynecology, Deen Dayal Upadhyay Hospital , Hari Nagar, New Delhi, India
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16
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Vasudeva N, Sharma SK. Post-Coital Antifertility Activity of Hibiscus rosa-sinensis Linn. roots. Evid Based Complement Alternat Med 2013; 5:91-4. [PMID: 18317554 PMCID: PMC2249740 DOI: 10.1093/ecam/nem003] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/29/2006] [Accepted: 01/11/2007] [Indexed: 12/21/2022]
Abstract
Ancient literature mentions the use of a number of plants/preparations for fertility regulation. Some local contraceptive agents have also been described in Ayurvedic and Unani texts. Documented experiments or clinical data are, however, lacking. Therefore, the present study was undertaken to explore the antifertility and estrogenic activity of ethanolic extract of the roots of Hibiscus rosa-sinensis Linn. A strong anti-implantation (inhibition 100%) and uterotropic activity was observed at the dose level of 400 mg/kg body weight. Histological studies were carried out to confirm this effect.
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Affiliation(s)
- Neeru Vasudeva
- Pharmacognosy and Phytochemistry Division, Faculty of Pharmaceutical Sciences, Guru Jambheshwar University of Science and Technology, Hisar 125001, India
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17
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McLachlan JA, Tilghman SL, Burow ME, Bratton MR. Environmental signaling and reproduction: a comparative biological and chemical perspective. Mol Cell Endocrinol 2012; 354:60-2. [PMID: 22178089 PMCID: PMC3641892 DOI: 10.1016/j.mce.2011.11.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Accepted: 11/28/2011] [Indexed: 01/31/2023]
Abstract
Reproduction is a critical element of life. Self-propagation in all living organisms ranging from bacteria to humans involves numerous common strategies. Underlying all reproductive strategies is the essential need for signaling molecules to initiate and maintain the process. In this paper we use comparative biological and chemical approaches to explore the origins and distribution of estrogen signaling as a pathway common to many life forms. In the process we illuminate the mechanisms whereby environmental agents alter reproduction and development. These mechanisms involve altered signaling pathways within cells and shifts in the targets of the signaling pathways to include regulators of gene transcription normally associated with other pathways. We also stress the role of signal cross talk in mediating hormone action.
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Affiliation(s)
- John A. McLachlan
- Environmental Signaling Laboratory, Tulane University, 1430 Tulane Ave., New Orleans, LA 70122, USA
- Department of Pharmacology, Tulane University School of Medicine, USA
- Department of Ecology and Evolutionary Biology, Tulane University School of Science and Engineering, USA
| | - Syreeta L. Tilghman
- Environmental Signaling Laboratory, Tulane University, 1430 Tulane Ave., New Orleans, LA 70122, USA
- Department of Pharmacology, Tulane University School of Medicine, USA
- Division of Basic Pharmaceutical Sciences, College of Pharmacy, Xavier University of Louisiana, New Orleans, LA, USA
| | - Matthew E. Burow
- Department of Medicine, Division of Hematology and Oncology, Tulane University School of Medicine, USA
| | - Melyssa R. Bratton
- Environmental Signaling Laboratory, Tulane University, 1430 Tulane Ave., New Orleans, LA 70122, USA
- Department of Pharmacology, Tulane University School of Medicine, USA
- Corresponding author at: Department of Pharmacology, Tulane University,
School of Medicine, USA. Tel.: +1 504 988 6623. (M.R. Bratton)
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18
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Bonefeld-Jørgensen EC, Long M, Hofmeister MV, Vinggaard AM. Endocrine-disrupting potential of bisphenol A, bisphenol A dimethacrylate, 4-n-nonylphenol, and 4-n-octylphenol in vitro: new data and a brief review. Environ Health Perspect 2007; 115 Suppl 1:69-76. [PMID: 18174953 PMCID: PMC2174402 DOI: 10.1289/ehp.9368] [Citation(s) in RCA: 354] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Accepted: 09/26/2006] [Indexed: 05/17/2023]
Abstract
BACKGROUND An array of environmental compounds is known to possess endocrine disruption (ED) potentials. Bisphenol A (BPA) and bisphenol A dimethacrylate (BPA-DM) are monomers used to a high extent in the plastic industry and as dental sealants. Alkylphenols such as 4-n-nonylphenol (nNP) and 4-n-octylphenol (nOP) are widely used as surfactants. OBJECTIVES We investigated the effect in vitro of these four compounds on four key cell mechanisms including transactivation of a) the human estrogen receptor (ER), b) the human androgen receptor (AR), c) the aryl hydrocarbon receptor (AhR), and d) aromatase activity. RESULTS All four compounds inhibited aromatase activity and were agonists and antagonists of ER and AR, respectively. nNP increased AhR activity concentration-dependently and further increased the 2,3,7,8-tetrachlorodibenzo-p-dioxin AhR action. nOP caused dual responses with a weak increased and a decreased AhR activity at lower (10(-8) M) and higher concentrations (10(-5)-10(-4) M), respectively. AhR activity was inhibited with BPA (10(-5)-10(-4) M) and weakly increased with BPA-DM (10(-5) M), respectively. nNP showed the highest relative potency (REP) compared with the respective controls in the ER, AhR, and aromatase assays, whereas similar REP was observed for the four chemicals in the AR assay. CONCLUSION Our in vitro data clearly indicate that the four industrial compounds have ED potentials and that the effects can be mediated via several cellular pathways, including the two sex steroid hormone receptors (ER and AR), aromatase activity converting testosterone to estrogen, and AhR; AhR is involved in syntheses of steroids and metabolism of steroids and xenobiotic compounds.
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Affiliation(s)
- Eva C Bonefeld-Jørgensen
- Unit of Cellular and Molecular Toxicology, Institute of Public Health, Department of Environmental and Occupational Medicine, University of Aarhus, Aarhus, Denmark.
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Booth NL, Overk CR, Yao P, Burdette JE, Nikolic D, Chen SN, Bolton JL, van Breemen RB, Pauli GF, Farnsworth NR. The chemical and biologic profile of a red clover (Trifolium pratense L.) phase II clinical extract. J Altern Complement Med 2006; 12:133-9. [PMID: 16566672 PMCID: PMC1780253 DOI: 10.1089/acm.2006.12.133] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
OBJECTIVES To document the chemical and biologic profile of a clinical phase II red clover (Trifolium pratense L.) extract by identifying and measuring the major and minor components visible in the high-performance liquid chromatography-ultraviolet (HPLC-UV) chromatogram and evaluating each compound for estrogenic and antioxidant activity. DESIGN Individual compounds in the preformulated (i.e., no excipients present) extract were identified by either chemical isolation followed by structure elucidation or matching to retention time and molecular mass of chemical standards via liquid chromatography-mass spectrometry (LC-MS) analysis. Quantitation of the amounts of compounds found in the preformulated extract was done using HPLC-UV or LC-MS. Isolated compounds or standards were evaluated for their ability to: (1) induce alkaline phosphatase (AP) in an endometrial carcinoma cell line, (2) competitively bind to recombinant human estrogen receptors (ERs) alpha (alpha) and beta (beta), and (3) act as antioxidants by scavenging 2,2-di(4-tert-octylphenyl)-1-picrylhydrazyl (DPPH) free radicals. RESULTS The preformulated red clover extract had 50% effective concentration (EC 50) of 2.0 to 2.2 microg/mL in the AP estrogenicity assay, and 50% inhibitory concentrations (IC(50)s) of 18.4 to 32.6 microg/mL and 1.9 to 3.4 microg/mL in the ERalpha and ERbeta binding assays, respectively. The preformulated extract was composed of 35.54% isoflavones, 1.11% flavonoids, 0.06% pterocarpans, < or =0.03% coumarins, and < or =0.03% tyramine. Daidzein, genistein, formononetin, biochanin A, coumestrol, and naringenin were estrogenic in the AP assay, and all of these, except formononetin, bound to one or both ERs. CONCLUSIONS The major and minor chemical and active estrogenic components of a preformulated phase II red clover clinical extract were identified, quantitatively measured, and the final capsule doses were calculated. The extract is currently under evaluation in a year-long clinical study for the alleviation of menopausal hot flashes. This is the first report to thoroughly summarize the chemistry and biology of all major peaks observed in the HPLC-UV chromatogram of a clinical red clover dietary supplement.
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Affiliation(s)
| | - Cassia R. Overk
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
| | - Ping Yao
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
| | | | - Dejan Nikolic
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
| | - Shao-Nong Chen
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
| | - Judy L. Bolton
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
| | - Richard B. van Breemen
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
| | - Guido F. Pauli
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
| | - Norman R. Farnsworth
- UIC/NIH Center for Botanical Dietary Supplements Research, Program for Collaborative Research in the Pharmaceutical Sciences (PCRPS) andDepartment of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, 833 S. Wood St., M/C 781, Chicago, IL 60612
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