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Blanco IMR, Barbosa RDM, Borges JMP, de Melo SABV, El-Bachá RDS, Viseras C, Severino P, Sanchez-Lopez E, Souto EB, Cabral-Albuquerque E. Conventional and PEGylated Liposomes as Vehicles of Copaifera sabulicola. Pharmaceutics 2023; 15:pharmaceutics15020671. [PMID: 36839993 PMCID: PMC9960246 DOI: 10.3390/pharmaceutics15020671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 02/01/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023] Open
Abstract
Traditional medicine uses resin oils extracted from plants of the genus Copaifera for several purposes. Resin oils are being studied to understand and profile their pharmacological properties. The aim of this work was to prepare and to characterize conventional and pegylated liposomes incorporating resin oils or the hexanic extract obtained from Copaifera sabulicola (copaiba) leaves. The cytotoxic effect of these products was also investigated. Conventional and stealth liposomes with copaiba extract showed similar average diameters (around 126 nm), encapsulation efficiencies greater than 75% and were stable for 90 days. A cytotoxicity test was performed on murine glioma cells and the developed liposomes presented antiproliferative action against these cancer cells at the average concentration of 30 μg/mL. Phytochemicals encapsulated in PEGylated liposomes induced greater reduction in the viability of tumor cells. In addition, bioassay-s measured the cytotoxicity of copaiba resin oil (Copaifera sabulicola) in liposomes (conventional and PEGylated), which was also checked against pheochromocytoma PC12 cells. Its safety was verified in normal rat astrocytes. The results indicate that liposomes encapsulating copaiba oil showed cytotoxic activity against the studied tumor strains in a dose-dependent fashion, demonstrating their potential applications as a chemotherapeutic bioactive formulation.
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Affiliation(s)
- Ian M. R. Blanco
- Industrial Engineering Program, Polytechnic School, Federal University of Bahia, Salvador 40210-630, Bahia, Brazil
| | - Raquel de Melo Barbosa
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071 Granada, Spain
- Correspondence: (R.d.M.B.); (E.B.S.)
| | - Julita M. P. Borges
- Department of Science and Technology, State University of Southwestern Bahia, Salvador 45083-900, Bahia, Brazil
| | - Silvio A. B. Vieira de Melo
- Industrial Engineering Program, Polytechnic School, Federal University of Bahia, Salvador 40210-630, Bahia, Brazil
| | - Ramon dos Santos El-Bachá
- Laboratory of Neurochemistry and Cell Biology, Department of Biochemistry and Biophysics, Institute of Health Sciences, UFBA, Salvador 40170-110, Bahia, Brazil
| | - César Viseras
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus of Cartuja s/n, 18071 Granada, Spain
| | - Patricia Severino
- Biotechnological Postgraduate Program, Tiradentes University, Aracaju 49010-390, Sergipe, Brazil
| | - Elena Sanchez-Lopez
- Department of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, 08007 Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), University of Barcelona, 08007 Barcelona, Spain
- Unit of Synthesis and Biomedical Applications of Peptides, IQAC-CSIC, 08034 Barcelona, Spain
| | - Eliana B. Souto
- UCIBIO—Applied Molecular Biosciences Unit, MEDTECH, Laboratory of Pharmaceutical Technology, Department of Drug Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Associate Laboratory i4HB, Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Correspondence: (R.d.M.B.); (E.B.S.)
| | - Elaine Cabral-Albuquerque
- Industrial Engineering Program, Polytechnic School, Federal University of Bahia, Salvador 40210-630, Bahia, Brazil
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Back PI, Balestrin LA, Fachel FNS, Nemitz MC, Falkembach M, Soares G, Marques MDS, Silveira T, Dal Prá M, Horn AP, Braganhol E, von Poser GL, Dora CL, Teixeira HF. Hydrogels containing soybean isoflavone aglycones-rich fraction-loaded nanoemulsions for wound healing treatment - in vitro and in vivo studies. Colloids Surf B Biointerfaces 2020; 196:111301. [PMID: 32871442 DOI: 10.1016/j.colsurfb.2020.111301] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/21/2020] [Accepted: 07/30/2020] [Indexed: 11/23/2022]
Abstract
Soybean isoflavone aglycones have been investigated as potential wound healing compounds for topical application. The aim of this study was to evaluate the wound healing properties of a soybean isoflavone aglycones-rich fraction (IAF) when incorporated into lipid nanoemulsions dispersed in acrylic-acid hydrogels. Formulations exhibited a mean droplet size in the sub 200 nm range, negative ζ-potential (-60 mV), and displayed non-Newtonian pseudoplastic behavior. The addition of a gelling agent decreased the IAF release from formulations and improved the retention of these compounds in intact porcine ear skin when compared with a control propylene glycol solution. No IAF were detected in receptor fluid of Franz-type diffusion cells. However, increasing amounts of IAF were noticed in both skin layers and the receptor fluid when the tissue was partially injured (tape stripping), or when the epidermis was completely removed. In vitro studies showed that IAF elicits an increased proliferation and migration of keratinocytes (HaCaT cell line). Subsequently, the healing effect of the formulations was evaluated in a model of dorsal wounds in rats, by assessing the size of the lesions, histology, inflammatory markers, and antioxidant activity. Overall findings demonstrated the potential of IAF-loaded formulations to promote wound healing by increasing angiogenesis by ∼200 %, reducing the lipid oxidation (TBARS) by ∼52 % and the inflammation (TNFα) by ∼35 %, while increasing re-epithelialization by ∼500 %, visualized by the epithelium thickness.
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Affiliation(s)
- Patricia Inês Back
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Lucélia Albarello Balestrin
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | | | | | - Mariana Falkembach
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Gabriela Soares
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Magno da Silva Marques
- Programa de Pós-Graduação em Ciências Fisiológicas, Laboratório de Histologia, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Tony Silveira
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Morgana Dal Prá
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Ana Paula Horn
- Programa de Pós-Graduação em Ciências Fisiológicas, Laboratório de Histologia, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Elizandra Braganhol
- Programa de Pós-Graduação em Biociências, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
| | - Gilsane Lino von Poser
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristiana Lima Dora
- Programa de Pós-Graduação em Ciências da Saúde, Laboratório de Nanotecnologia, Faculdade de Medicina, Universidade Federal do Rio Grande, Rio Grande, RS, Brazil
| | - Helder Ferreira Teixeira
- Programa de Pós-Graduação em Ciências Farmacêuticas, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brazil.
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Cheilari A, Vontzalidou A, Makropoulou M, Meligova AK, Fokialakis N, Mitakou S, Alexis MN, Aligiannis N. Isoflavonoid Profiling and Estrogen-Like Activity of Four Genista Species from the Greek Flora. Molecules 2020; 25:molecules25235507. [PMID: 33255446 PMCID: PMC7727843 DOI: 10.3390/molecules25235507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/19/2020] [Accepted: 11/21/2020] [Indexed: 11/16/2022] Open
Abstract
As part of our ongoing research on phytoestrogens, we investigated the phytochemical profile and estrogen-like activities of eight extracts from the aerial parts of four Genista species of Greek flora using estrogen-responsive cell lines. Ethyl acetate and methanolic extracts of G. acanthoclada, G. depressa,G. hassertiana, and G. millii were obtained with accelerated solvent extraction and their phytochemical profiles were compared using ultra-high-performance liquid chromatography-high-resolution mass spectrometry (uHPLC-HRMS). Fourteen isoflavonoids, previously isolated from G. halacsyi, were used as reference standards for their identification in the extracts. Thirteen isoflavonoids were detected in both extracts of G. acanthoclada and G. hassertiana, while fewer and far fewer were detected in G. millii and G. depressa, respectively. The ethyl acetate extracts of G. hassertiana and G. acanthoclada displayed 2.45- and 1.79-fold higher, respectively, estrogen-like agonist activity in Ishikawa cells compared to MCF-7 cells at pharmacologically relevant concentrations. Both these extracts, but not that of G. depressa, contained mono- and di-O-β-d-glucosides of genistein as well as the aglycone, all three of which are known to display full estrogen-like activity at lower-than-micromolar concentrations. The possibility of using preparations rich in G. hassertiana and/or G. acanthoclada extracts as a potentially safer substitute for low-dose vaginal estrogen for menopausal symptoms is discussed.
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Affiliation(s)
- Antigoni Cheilari
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopoli Zografou, 15771 Athens, Greece; (A.C.); (A.V.); (M.M.); (N.F.); (S.M.)
| | - Argyro Vontzalidou
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopoli Zografou, 15771 Athens, Greece; (A.C.); (A.V.); (M.M.); (N.F.); (S.M.)
- Institute of Chemical Biology, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, 11635 Athens, Greece;
| | - Maria Makropoulou
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopoli Zografou, 15771 Athens, Greece; (A.C.); (A.V.); (M.M.); (N.F.); (S.M.)
- Institute of Chemical Biology, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, 11635 Athens, Greece;
| | - Aggeliki K. Meligova
- Institute of Chemical Biology, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, 11635 Athens, Greece;
| | - Nikolas Fokialakis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopoli Zografou, 15771 Athens, Greece; (A.C.); (A.V.); (M.M.); (N.F.); (S.M.)
| | - Sofia Mitakou
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopoli Zografou, 15771 Athens, Greece; (A.C.); (A.V.); (M.M.); (N.F.); (S.M.)
| | - Michael N. Alexis
- Institute of Chemical Biology, National Hellenic Research Foundation, 48, Vassileos Constantinou Avenue, 11635 Athens, Greece;
- Correspondence: (M.N.A.); (N.A.); Tel.: +30-210-72-74-757 (N.A.)
| | - Nektarios Aligiannis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopoli Zografou, 15771 Athens, Greece; (A.C.); (A.V.); (M.M.); (N.F.); (S.M.)
- Correspondence: (M.N.A.); (N.A.); Tel.: +30-210-72-74-757 (N.A.)
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Nemitz MC, von Poser GL, Teixeira HF. In vitro skin permeation/retention of daidzein, genistein and glycitein from a soybean isoflavone rich fraction-loaded nanoemulsions and derived hydrogels. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.02.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Hinton PS, Ortinau LC, Dirkes RK, Shaw EL, Richard MW, Zidon TZ, Britton SL, Koch LG, Vieira-Potter VJ. Soy protein improves tibial whole-bone and tissue-level biomechanical properties in ovariectomized and ovary-intact, low-fit female rats. Bone Rep 2018; 8:244-254. [PMID: 29922706 PMCID: PMC6005802 DOI: 10.1016/j.bonr.2018.05.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 05/15/2018] [Accepted: 05/17/2018] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Osteoporosis and related fractures, decreased physical activity, and metabolic dysfunction are serious health concerns for postmenopausal women. Soy protein might counter the negative effects of menopause on bone and metabolic health due to the additive or synergistic effects of its bioactive components. OBJECTIVE To evaluate the effects of ovariectomy (OVX) and a soy-protein diet (SOY) on bone outcomes in female, low-capacity running (LCR) rats selectively bred for low aerobic fitness as a model of menopause. METHODS At 27 weeks of age, LCR rats (N = 40) underwent OVX or sham (SHAM) surgery and were randomized to one of two isocaloric and isonitrogenous plant-protein-based dietary treatments: 1) soy-protein (SOY; soybean meal); or, 2) control (CON, corn-gluten meal), resulting in four treatment groups. During the 30-week dietary intervention, animals were provided ad libitum access to food and water; body weight and food intake were measured weekly. At completion of the 30-week intervention, body composition was measured using EchoMRI; animals were fasted overnight, euthanized, and blood and hindlimbs collected. Plasma markers of bone formation (osteocalcin, OC; N-terminal propeptide of type I procollagen, P1NP) and resorption (tartrate-resistant acid phosphatase, TRAP5b; C-terminal telopeptide of type I collagen, CTx) were measured using ELISA. Tibial trabecular microarchitecture and cortical geometry were evaluated using μCT; and torsional loading to failure was used to assess cortical biomechanical properties. Advanced glycation end-product (AGE) content of the femur was measured using a fluorimetric assay, and was expressed relative to collagen content measured by a colorimetric OH-proline assay. Two-factor ANOVA or ANOVCA was used to test for significant main and interactive effects of ovarian status (OV STAT: OVX vs. SHAM) and DIET (SOY vs. CON); final body weight was included as a covariate for body-weight-dependent cortical geometry and biomechanical properties. RESULTS OVX had significantly greater CTx than SHAM; SOY did not affect bone turnover markers. OVX adversely affected trabecular microarchitecture as evidenced by reduced BV/TV, trabecular thickness (Tb.Th), trabecular number (Tb.N), and connectivity density (Conn.D), and by increased trabecular separation (Tb.Sp) and structural model index (SMI). SOY increased BV/TV only in ovary-intact animals. There was no effect of OVX or SOY on tibial cortical geometry. In SHAM and OVX rats, SOY significantly improved whole-bone strength and stiffness; SOY also increased tissue-level stiffness and tended to increase tissue-level strength (p = 0.067). There was no effect of OVX or SOY on AGE content. CONCLUSION Soy protein improved cortical bone biomechanical properties in female low-fit rats, regardless of ovarian hormone status.
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Key Words
- Bone
- CON, control diet
- CTx, C-terminal telopeptide of type I collagen
- Conn.D, connectivity density
- G, shear modulus of elasticity
- Ks, torsional stiffness
- LCR, low-capacity runners
- Menopause
- OC, osteocalcin
- OVX, ovariectomy
- Osteoporosis
- Ovariectomy
- P1NP, N-terminal propeptide of type I procollagen
- SHM, Sham
- SOY, Soy-protein-based diet
- Soy protein
- Su, ultimate tensile strength
- TRAP5b, tartrate-resistant acid phosphatase
- Tb.N, trabecular number
- Tb.Sp, trabecular separation
- Tb.Th, trabecular thickness
- Tmax, maximal torque
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Affiliation(s)
- Pamela S. Hinton
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Laura C. Ortinau
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Rebecca K. Dirkes
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Emily L. Shaw
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Matthew W. Richard
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Terese Z. Zidon
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, USA
| | - Steven L. Britton
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Lauren G. Koch
- Department of Anesthesiology, University of Michigan Medical School, Ann Arbor, MI, USA
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Xu ML, Gao Y, Wang X, Xiong J, Chen X, Zhao S, Ma S, Huang Y, Liu J. Effect of carbaryl on some biochemical changes in PC12 cells: the protective effect of soy isoflavone genistein, and daidzein, and their mixed solution. CYTA - JOURNAL OF FOOD 2016. [DOI: 10.1080/19476337.2016.1181107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Meng-Lei Xu
- Laboratory of Nutrition and Functional Food, Jilin University, Changchun, PR China
| | - Yu Gao
- College of Agriculture, Jilin Agricultural University, Changchun, PR China
| | - Xinxin Wang
- Laboratory of Nutrition and Functional Food, Jilin University, Changchun, PR China
| | - Jinfeng Xiong
- Changchun Institute of Biological Products, Changchun, PR China
| | - Xinhua Chen
- Changchun University of Chinese Medicine Affiliated Hospital, Changchun, PR China
| | - Songning Zhao
- Laboratory of Nutrition and Functional Food, Jilin University, Changchun, PR China
| | - Shuang Ma
- Laboratory of Nutrition and Functional Food, Jilin University, Changchun, PR China
| | - Yanjun Huang
- Laboratory of Nutrition and Functional Food, Jilin University, Changchun, PR China
| | - Jingbo Liu
- Laboratory of Nutrition and Functional Food, Jilin University, Changchun, PR China
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Nemitz MC, Argenta DF, Koester LS, Bassani VL, von Poser GL, Teixeira HF. The international scenario of patents concerning isoflavones. Trends Food Sci Technol 2016. [DOI: 10.1016/j.tifs.2016.01.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Zorzi GK, Carvalho ELS, von Poser GL, Teixeira HF. On the use of nanotechnology-based strategies for association of complex matrices from plant extracts. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2015.07.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Abstract
Noninvasive, imaging-based methodologies provide for the first time the possibility to spatio-temporally investigate physiopathological events and long-term effects of drug administration of exposure to environmental and alimentary toxic compounds. Hence, this novel methodology could enable us to measure the dynamics of specific molecular pathways in live animals. In the last few years, animals, particularly mice, were genetically modified to respond to a specific stimulus with the production of proteins, named "reporters," that are easily detected and quantitated by in vivo and ex vivo imaging. These "reporter mice" are gradually being applied to the pharmaco-toxicological research. In the generation of a reporter mouse useful for pharmaco-toxicological studies several elements need to be considered in the selection of the reporter system: the half-life of proteins should be compatible with the necessities of the study to assess the onset and the termination of the stimulus of interest, in all tissues the response should be proportional to the given stimulus, and the imaging modalities requested for reporter measurements should be applicable to high-throughput screening. Bioluminescence-based imaging (BLI) in small animals has the advantage over other modalities that does not require too sophisticated equipment or specifically and highly trained personnel, and furthermore may be carried out at a relative rapidity and low cost; for these reasons several luciferases have been developed for in vivo imaging applications and used in the generation of reporter mice. We here describe a BLI-based reporter mouse created to respond to estrogenic stimuli, which has been applied to the study of female physiopathology as well as for the identification of the effects of selective drugs or toxic compounds present in the environment and in the alimentary chain.
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Mohammad-Shahi M, Mowla K, Haidari F, Zarei M, Choghakhori R. Soy milk consumption, markers of inflammation and oxidative stress in women with rheumatoid arthritis: A randomised cross-over clinical trial. Nutr Diet 2015. [DOI: 10.1111/1747-0080.12174] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Majid Mohammad-Shahi
- Hyperlipidemia Research Centre; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
| | - Karim Mowla
- Department of Rheumatology; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
| | - Fatemeh Haidari
- Nutrition and Metabolic Diseases Research Centre; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
| | - Mehdi Zarei
- Department of Food Hygiene, Faculty of Veterinary Medicine; Shahid Chamran University of Ahvaz; Ahvaz Iran
| | - Razieh Choghakhori
- Departments of Nutritional Science, Student Research Committee; Arvand International Division; Ahvaz Iran
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Rizzi N, Manni I, Vantaggiato C, Delledonne GA, Gentileschi MP, Maggi A, Piaggio G, Ciana P. In VivoImaging of Cell Proliferation for a Dynamic, Whole Body, Analysis of Undesired Drug Effects. Toxicol Sci 2015; 145:296-306. [DOI: 10.1093/toxsci/kfv056] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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La Rocca C, Tait S, Mantovani A. Use of a combinedin vitroassay for effect-directed assessment of infant formulas. Int J Food Sci Technol 2014. [DOI: 10.1111/ijfs.12709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Cinzia La Rocca
- Food and Veterinary Toxicology Unit; Department of Veterinary Public Health and Food Safety; Istituto Superiore di Sanità; Viale Regina Elena Rome 299-00161 Italy
| | - Sabrina Tait
- Food and Veterinary Toxicology Unit; Department of Veterinary Public Health and Food Safety; Istituto Superiore di Sanità; Viale Regina Elena Rome 299-00161 Italy
| | - Alberto Mantovani
- Food and Veterinary Toxicology Unit; Department of Veterinary Public Health and Food Safety; Istituto Superiore di Sanità; Viale Regina Elena Rome 299-00161 Italy
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Maggi A, Villa A. In vivo dynamics of estrogen receptor activity: the ERE-Luc model. J Steroid Biochem Mol Biol 2014; 139:262-9. [PMID: 23262261 DOI: 10.1016/j.jsbmb.2012.12.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 11/23/2012] [Accepted: 12/10/2012] [Indexed: 01/24/2023]
Abstract
In recent years several studies demonstrated the presence of estrogen receptors in mammalian tissues and significantly improved our understanding of their ability to control biological processes in reproductive as well as non-reproductive organs. Considering the manifold mechanisms and organs that are involved in estrogen action and the implication of estrogens in human female physiology, innovative approaches are required to shed light on the widespread activities of estrogen receptors in woman physiology. This is particularly relevant for the definition of novel, more efficacious hormonal replacement therapies or for the evaluation of the risk associated with the exposure to endocrine disruptors. The introduction of genetic engineering and the development and application of in vivo imaging techniques offer new tools for pre-clinical studies. The generation of the ERE-Luc mouse, a reporter animal developed for in vivo studies of the estrogen receptor activity, allows assessing the activity state of the ER signaling pathway in all target tissues and organs at once, under physiological stimuli or as a result of a pharmacological treatment. This review summarizes the main steps in the generation and appraisal of the estrogen receptor reporter mouse ERE-Luc, designed for in vivo molecular imaging studies, and describes examples demonstrating the suitability of the ERE-Luc model for drug development and for the investigation of the effects of endogenous, environmental, and dietary estrogens in vivo. This article is part of a Special Issue entitled 'Phytoestrogens'.
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Affiliation(s)
- Adriana Maggi
- Center of Excellence on Neurodegenerative Diseases and Department of Pharmacological and Biomolecular Sciences, University of Milan, via Balzaretti 9, 20133, Milan, Italy.
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Emmerson E, Rando G, Meda C, Campbell L, Maggi A, Hardman MJ. Estrogen receptor-mediated signalling in female mice is locally activated in response to wounding. Mol Cell Endocrinol 2013; 375:149-56. [PMID: 23727624 DOI: 10.1016/j.mce.2013.05.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 05/06/2013] [Accepted: 05/06/2013] [Indexed: 11/25/2022]
Abstract
Estrogen deprivation is associated with delayed healing, while Hormone Replacement Therapy (HRT) accelerates acute wound healing and protects against development of chronic wounds. Estrogen exerts its effects on healing via numerous cell types by signalling through the receptors ERα and ERβ, which bind to the Estrogen Responsive Element (ERE) and initiate gene transcription. The ERE-luciferase transgenic mouse model has been influential in assessing real-time in vivo estrogen receptor activation across a range of tissues and pathologies. Using this model we demonstrate novel temporally regulated peri-wound activation of estrogen signalling in female mice. Using histological methods we reveal that this signal is specifically localised to keratinocytes of the neoepidermis and wound margin dermal cells. Moreover using pharmacological agonists we reveal that ERβ induces ERE-mediated signal in both epidermal and dermal cells while ERα induces ERE-mediated signal in dermal cells alone. Collectively these novel data demonstrate rapid and regional activation of estrogen signalling in wounded skin. A more complete understanding of local hormonal signalling during repair is essential for the focussed development of new therapies for wound healing.
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Affiliation(s)
- Elaine Emmerson
- The Healing Foundation Centre, Faculty of Life Sciences, The University of Manchester, AV Hill Building, Oxford Road, Manchester M13 9PT, UK
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Boverhof DR, Chamberlain MP, Elcombe CR, Gonzalez FJ, Heflich RH, Hernández LG, Jacobs AC, Jacobson-Kram D, Luijten M, Maggi A, Manjanatha MG, Benthem JV, Gollapudi BB. Transgenic animal models in toxicology: historical perspectives and future outlook. Toxicol Sci 2011; 121:207-33. [PMID: 21447610 DOI: 10.1093/toxsci/kfr075] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Transgenic animal models are powerful tools for developing a more detailed understanding on the roles of specific genes in biological pathways and systems. Applications of these models have been made within the field of toxicology, most notably for the screening of mutagenic and carcinogenic potential and for the characterization of toxic mechanisms of action. It has long been a goal of research toxicologists to use the data from these models to refine hazard identification and characterization to better inform human health risk assessments. This review provides an overview on the applications of transgenic animal models in the assessment of mutagenicity and carcinogenicity, their use as reporter systems, and as tools for understanding the roles of xenobiotic-metabolizing enzymes and biological receptors in the etiology of chemical toxicity. Perspectives are also shared on the future outlook for these models in toxicology and risk assessment and how transgenic technologies are likely to be an integral tool for toxicity testing in the 21st century.
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Affiliation(s)
- Darrell R Boverhof
- Toxicology and Environmental Research and Consulting, The Dow Chemical Company, Midland, Michigan 48674, USA.
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Rando G, Wahli W. Sex differences in nuclear receptor-regulated liver metabolic pathways. Biochim Biophys Acta Mol Basis Dis 2011; 1812:964-73. [PMID: 21211563 DOI: 10.1016/j.bbadis.2010.12.023] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2010] [Revised: 12/23/2010] [Accepted: 12/24/2010] [Indexed: 12/23/2022]
Abstract
Liver metabolism is markedly sex-dimorphic; accordingly, the prevalence of liver diseases is different between sexes. The superfamily of nuclear receptors (NRs) governs the proper expression of key liver metabolism genes by sensing lipid-soluble hormones and dietary lipids. When the expression of those genes is deregulated, disease development is favored. However, we lack a comprehensive picture of the differences between NR actions in males and females. Here, we reviewed explorative studies that assessed NR functions in both sexes, and we propose a first map of sex-dimorphic NR expression in the liver. Our analysis suggested that NRs in the female liver exhibited cross-talk with more liver-protective potential than NRs in male liver. This study provides empirical support to the hypothesis that women are more resilient to some liver diseases than men, based on a more compensative NR network. This article is part of a Special Issue entitled: Translating nuclear receptors from health to disease.
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Affiliation(s)
- Gianpaolo Rando
- Center for Integrative Genomics and National Research Center Frontiers in Genetics, University of Lausanne, Switzerland
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