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Limongelli F, Crupi P, Clodoveo ML, Corbo F, Muraglia M. Overview of the Polyphenols in Salicornia: From Recovery to Health-Promoting Effect. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27227954. [PMID: 36432054 PMCID: PMC9696959 DOI: 10.3390/molecules27227954] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 11/18/2022]
Abstract
Nowadays, there has been considerable attention paid toward the recovery of waste plant matrices as possible sources of functional compounds with healthy properties. In this regard, we focus our attention on Salicornia, a halophyte plant that grows abundantly on the coasts of the Mediterranean area. Salicornia is used not only as a seasoned vegetable but also in traditional medicine for its beneficial effects in protecting against diseases such as obesity, diabetes, and cancer. In numerous research studies, Salicornia consumption has been highly suggested due to its high level of bioactive molecules, among which, polyphenols are prevalent. The antioxidant and antiradical activity of polyphenols makes Salicornia a functional food candidate with potential beneficial activities for human health. Therefore, this review provides specific and compiled information for optimizing and developing new extraction processes for the recovery of bioactive compounds from Salicornia; focusing particular attention on polyphenols and their health benefits.
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Affiliation(s)
- Francesco Limongelli
- Dipartimento di Scienze del Suolo e Degli Alimenti, Università degli Studi di Bari, Campus Universitario E. Quagliarello Via Orabona 4, 70125 Bari, Italy
| | - Pasquale Crupi
- Dipartimento Interdisciplinare di Medicina, Università degli Studi Aldo Moro Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy
- Correspondence: or
| | - Maria Lisa Clodoveo
- Dipartimento Interdisciplinare di Medicina, Università degli Studi Aldo Moro Bari, Piazza Giulio Cesare 11, 70124 Bari, Italy
| | - Filomena Corbo
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari, Campus Universitario E. Quagliarello Via Orabona 4, 70125 Bari, Italy
| | - Marilena Muraglia
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari, Campus Universitario E. Quagliarello Via Orabona 4, 70125 Bari, Italy
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Abstract
Fruits come in a wide variety of colors, shapes, and flavors. This chapter will cover selected fruits that are known to be healthy and highly nutritious. These fruits were chosen due to their common usage and availability. Since it is not possible to cover all health benefits or essential nutrients and important phytochemicals of the fruit composition, this chapter will focus on the key valuable constituents and their potential health effects.
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Affiliation(s)
- Sawsan G Mohammed
- Qatar Research Leadership Program (QRLP), Qatar Foundation, Doha, Qatar.
| | - M Walid Qoronfleh
- Research & Policy Department, World Innovation Summit for Health (WISH), Qatar Foundation, Doha, Qatar.
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Alam N, Angeli MG, Greenblatt DJ. Mechanism of in-vitro inhibition of UGT1A1 by paritaprevir. J Pharm Pharmacol 2017; 69:1794-1801. [PMID: 28990653 DOI: 10.1111/jphp.12821] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 08/26/2017] [Indexed: 02/06/2023]
Abstract
OBJECTIVES The direct-acting protease inhibitor paritaprevir is a new pharmaco-logic option available for treatment of chronic hepatitis C (HCV). Paritaprevir is reported to inhibit human UGT 1A1, but the mechanism of inhibition and its possible clinical consequences are not established. Our objective was to evaluate the in-vitro metabolic interaction between paritaprevir and the oral contraceptive steroid ethinyl estradiol (EE), a UGT 1A1 substrate. METHODS Enzyme kinetic parameters were determined using human liver microsomes for the biotransformation of EE to its glucuronide metabolites, and the potency and mechanism of inhibition by paritaprevir. Probenecid was used as a reference inhibitor for purposes of assay validation. KEY FINDINGS The underlying pattern of EE kinetics was complex, with evidence of substrate inhibition. The in-vitro inhibition constant (Ki ) value for paritaprevir vs EE on average was 20 μm and was consistent with a competitive inhibition mechanism. The ratio of in-vivo maximum plasma concentration of paritaprevir to in-vitro Ki was <0.1. CONCLUSIONS Paritaprevir is an in-vitro inhibitor of UGT 1A1. However, the in-vitro Ki value relative to maximum clinical plasma concentrations is below the threshold to trigger a recommendation for pharmacokinetic drug interaction studies.
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Affiliation(s)
- Novera Alam
- Graduate Program in Pharmacology and Drug Development, Sackler School of Graduate Biomedical Sciences, Boston, MA, USA
| | - Mia G Angeli
- Graduate Program in Pharmacology and Drug Development, Sackler School of Graduate Biomedical Sciences, Boston, MA, USA
| | - David J Greenblatt
- Graduate Program in Pharmacology and Drug Development, Sackler School of Graduate Biomedical Sciences, Boston, MA, USA.,Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine, Boston, MA, USA
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Stohs SJ. Safety, Efficacy, and Mechanistic Studies Regarding Citrus aurantium (Bitter Orange) Extract and p-Synephrine. Phytother Res 2017; 31:1463-1474. [PMID: 28752649 PMCID: PMC5655712 DOI: 10.1002/ptr.5879] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Revised: 06/21/2017] [Accepted: 07/01/2017] [Indexed: 12/25/2022]
Abstract
Citrus aurantium L. (bitter orange) extracts that contain p-synephrine as the primary protoalkaloid are widely used for weight loss/weight management, sports performance, appetite control, energy, and mental focus and cognition. Questions have been raised about the safety of p-synephrine because it has some structural similarity to ephedrine. This review focuses on current human, animal, in vitro, and mechanistic studies that address the safety, efficacy, and mechanisms of action of bitter orange extracts and p-synephrine. Numerous studies have been conducted with respect to p-synephrine and bitter orange extract because ephedra and ephedrine were banned from use in dietary supplements in 2004. Approximately 30 human studies indicate that p-synephrine and bitter orange extracts do not result in cardiovascular effects and do not act as stimulants at commonly used doses. Mechanistic studies suggest that p-synephrine exerts its effects through multiple actions, which are discussed. Because p-synephrine exhibits greater adrenergic receptor binding in rodents than humans, data from animals cannot be directly extrapolated to humans. This review, as well as several other assessments published in recent years, has concluded that bitter orange extract and p-synephrine are safe for use in dietary supplements and foods at the commonly used doses. Copyright © 2017 The Authors Phytotherapy Research Published by John Wiley & Sons Ltd.
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Affiliation(s)
- Sidney J. Stohs
- Creighton University Medical CenterKitsto Consulting LLCFriscoTXUSA
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Kawaguchi-Suzuki M, Nasiri-Kenari N, Shuster J, Gmitter FG, Cancalon P, de Oliveria F, Kight J, Handberg EM, Pepine CJ, Frye RF, Cooper-DeHoff RM. Effect of Low-Furanocoumarin Hybrid Grapefruit Juice Consumption on Midazolam Pharmacokinetics. J Clin Pharmacol 2016; 57:305-311. [PMID: 27503364 DOI: 10.1002/jcph.807] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Accepted: 08/04/2016] [Indexed: 11/06/2022]
Abstract
The objectives of this study were to investigate the effect of grapefruit juice low in furanocoumarins on CYP3A activity and to summarize previous findings of enzyme inhibition measured by the metabolism of midazolam after intake of grapefruit juice. Twelve healthy volunteers participated in a prospective, randomized, double-blinded, 3-way crossover clinical study to determine the effect of regular grapefruit juice (RGJ) and a novel, low-furanocoumarin hybrid grapefruit juice (HGJ) on the metabolism of oral midazolam, used as a probe for in vivo CYP3A activity, compared with water as a control. The RGJ was 100% hand-squeezed "Hudson" grapefruit juice, and the HGJ contained low amounts of furanocoumarin constituents. The point estimates (90% confidence intervals) for the RGJ/water midazolam AUC geometric mean ratio was 122% (107-140). The point estimate for the HGJ/water midazolam AUC ratio was within the 80% to 125% bioequivalence range, indicating an absence of interaction. This finding also prompted a systematic review of available evidence on the pharmacokinetic alteration of midazolam by grapefruit juice. Although most studies demonstrated alteration in midazolam pharmacokinetics supporting inhibition of CYP3A activity as a likely mechanism, the cohorts included in these studies and the extent of the pharmacokinetic interaction varied widely. The current study indicated grapefruit juice-drug interaction varies substantially based on patient characteristics and/or grapefruit juice product-related factors, including the amount of furanocoumarin constituents present in the juice.
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Affiliation(s)
- Marina Kawaguchi-Suzuki
- Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, FL, USA.,School of Pharmacy, Pacific University Oregon, Hillsboro, OR, USA
| | - Negar Nasiri-Kenari
- Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, FL, USA
| | - Jonathan Shuster
- Department of Health Outcomes and Policy, University of Florida, Gainesville, FL, USA
| | - Fred G Gmitter
- Department of Horticultural Sciences, Citrus Research and Education Center, Lake Alfred, FL, USA
| | - Paul Cancalon
- Florida Department of Citrus, Citrus Research and Education Center, Lake Alfred, FL, USA
| | - Felipe de Oliveria
- Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, FL, USA
| | - Jennifer Kight
- Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, FL, USA
| | - Eileen M Handberg
- Division of Cardiovascular Medicine, Department of Medicine, University of Florida, Gainesville, FL, USA
| | - Carl J Pepine
- Division of Cardiovascular Medicine, Department of Medicine, University of Florida, Gainesville, FL, USA
| | - Reginald F Frye
- Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, FL, USA
| | - Rhonda M Cooper-DeHoff
- Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, FL, USA
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A Molecular Aspect in the Regulation of Drug Metabolism: Does PXR-Induced Enzyme Expression Always Lead to Functional Changes in Drug Metabolism? ACTA ACUST UNITED AC 2016; 2:187-192. [PMID: 27795941 DOI: 10.1007/s40495-016-0062-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Pregnane X receptor (PXR, NR112) is a xenobiotic receptor whose primary function is to regulate the expression of drug-metabolizing enzymes (DMEs) and drug transporters. Drug-induced PXR activation and subsequent enzyme and transporter induction has been proposed to be an important mechanism for the drug-drug interactions. In addition to activating PXR, many pharmaceutical chemicals can also function as reversible or irreversible inhibitors of DMEs, which may also impact the pharmacokinetics and pharmacodynamics (PK/PD) of drugs. Therefore, we cannot simply conclude that the PXR-induced alteration in enzyme expression always reflects functional changes. We should consider both PXR activation and DMEs inhibition to improve drug safety in the clinic.
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Content evaluation of 4 furanocoumarin monomers in various citrus germplasms. Food Chem 2015; 187:75-81. [DOI: 10.1016/j.foodchem.2015.04.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 04/01/2015] [Accepted: 04/03/2015] [Indexed: 11/22/2022]
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Chen C, Yu Q, Wei X, Cancalon PF, Gmitter, Jr. FG. Identification of genes associated with low furanocoumarin content in grapefruit. Genome 2014; 57:537-45. [DOI: 10.1139/gen-2014-0164] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Some furanocoumarins in grapefruit (Citrus paradisi) are associated with the so-called grapefruit juice effect. Previous phytochemical quantification and genetic analysis suggested that the synthesis of these furanocoumarins may be controlled by a single gene in the pathway. In this study, cDNA-amplified fragment length polymorphism (cDNA-AFLP) analysis of fruit tissues was performed to identify the candidate gene(s) likely associated with low furanocoumarin content in grapefruit. Fifteen tentative differentially expressed fragments were cloned through the cDNA-AFLP analysis of the grapefruit variety Foster and its spontaneous low-furanocoumarin mutant Low Acid Foster. Sequence analysis revealed a cDNA-AFLP fragment, Contig 6, was homologous to a substrate-proved psoralen synthase gene, CYP71A22, and was part of citrus unigenes Cit.3003 and Csi.1332, and predicted genes Ciclev10004717m in mandarin and orange1.1g041507m in sweet orange. The two predicted genes contained the highly conserved motifs at one of the substrate recognition sites of CYP71A22. Digital gene expression profile showed the unigenes were expressed only in fruit and seed. Quantitative real-time PCR also proved Contig 6 was down-regulated in Low Acid Foster. These results showed the differentially expressed Contig 6 was related to the reduced furanocoumarin levels in the mutant. The identified fragment, homologs, unigenes, and genes may facilitate further furanocoumarin genetic study and grapefruit variety improvement.
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Affiliation(s)
- Chunxian Chen
- University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA
- United States Department of Agriculture, Agricultural Research Service, Southeastern Fruit and Tree Nut Research Laboratory, 21 Dunbar Road, Byron, GA 31008, USA
| | - Qibin Yu
- University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA
| | - Xu Wei
- University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA
- Southwest University, College of Horticulture and Landscape, Tiansheng Road, Beibei District, Chongqing, 400715, China
| | - Paul F. Cancalon
- Florida Department of Citrus, Scientific Division, 700 Experiment Station Road, Lake Alfred, FL 33850, USA
| | - Fred G. Gmitter, Jr.
- University of Florida, Citrus Research and Education Center, 700 Experiment Station Road, Lake Alfred, FL 33850, USA
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Stohs SJ, Miller H, Romano F. Absence of furanocoumarins in Advantra Z® (Citrus aurantium, bitter orange) extracts. J Diet Suppl 2014; 11:288-93. [PMID: 25026202 DOI: 10.3109/19390211.2014.937047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Grapefruit (Citrus paradisi) juice is known for its ability to alter drug metabolism through inhibition of the cytochrome P450-3A4 (CYP3A4) system, and result in drug-food interactions that may be life threatening. The primary active ingredients in grapefruit responsible for these effects are the furanocoumarins bergapten, bergamottin, and 6',7'-dihydroxybergamottin (DHB). Bergamottin and DHB appear to be the most important in terms of adverse drug interactions. Furanocoumarins are present in the juices and fruits of other Citrus species including C. aurantium (bitter oranges). Bergapten is the predominant furanocoumarin in bitter orange. Bitter orange extracts are widely used in products associated with weight loss, sports performance, and energy production. Questions have been raised about the potential of bitter orange extracts to cause drug interactions. This study examined the furanocoumarin content of four standardized bitter orange extracts (Advantra Z®) by liquid chromatography-mass spectroscopy. The results indicated that the total furanocoumarin content of each of the four extracts was less than 20 μg/g, amounts insufficient to exert significant effects on the metabolism of susceptible drugs in human subjects at the doses commonly used for these extracts.
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Affiliation(s)
- Sidney J Stohs
- 1School of Pharmacy and Health Professions, Creighton University Medical Center , Omaha, NE , USA
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Hanley MJ, Masse G, Harmatz JS, Cancalon PF, Dolnikowski GG, Court MH, Greenblatt DJ. Effect of blueberry juice on clearance of buspirone and flurbiprofen in human volunteers. Br J Clin Pharmacol 2013; 75:1041-52. [PMID: 22943633 DOI: 10.1111/j.1365-2125.2012.04450.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 08/26/2012] [Indexed: 12/20/2022] Open
Abstract
AIM The present study evaluated the possibility of drug interactions involving blueberry juice (BBJ) and substrate drugs whose clearance is dependent on cytochromes P4503A (CYP3A) and P4502C9 (CYP2C9). METHODS A 50:50 mixture of lowbush and highbush BBJ was evaluated in vitro as an inhibitor of CYP3A activity (hydroxylation of triazolam and dealkylation of buspirone) and of CYP2C9 activity (flurbiprofen hydroxylation) using human liver microsomes. In clinical studies, clearance of oral buspirone and oral flurbiprofen was studied in healthy volunteers with and without co-treatment with BBJ. RESULTS BBJ inhibited CYP3A and CYP2C9 activity in vitro, with 50% inhibitory concentrations (IC50 ) of less than 2%, but without evidence of mechanism-based (irreversible) inhibition. Grapefruit juice (GFJ) also inhibited CYP3A activity, but inhibitory potency was increased by pre-incubation, consistent with mechanism-based inhibition. In clinical studies, GFJ significantly increased area under the plasma concentration-time curve (AUC) for the CYP3A substrate buspirone. The geometric mean ratio (GMR = AUC with GFJ divided by AUC with water) was 2.12. In contrast, the effect of BBJ (GMR = 1.39) was not significant. In the study of flurbiprofen (CYP2C9 substrate), the positive control inhibitor fluconazole significantly increased flurbiprofen AUC (GMR = 1.71), but BBJ had no significant effect (GMR = 1.03). CONCLUSION The increased buspirone AUC associated with BBJ is quantitatively small and could have occurred by chance. BBJ has no effect on flurbiprofen AUC. The studies provide no evidence for concern about clinically important pharmacokinetic drug interactions of BBJ with substrate drugs metabolized by CYP3A or CYP2C9.
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Affiliation(s)
- Michael J Hanley
- Sackler Program in Pharmacology and Experimental Therapeutics, Sackler School of Graduate Biomedical Sciences, Boston, MA 02111, USA
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Won CS, Lan T, Vandermolen KM, Dawson PA, Oberlies NH, Widmer WW, Scarlett YV, Paine MF. A modified grapefruit juice eliminates two compound classes as major mediators of the grapefruit juice-fexofenadine interaction: an in vitro-in vivo "connect". J Clin Pharmacol 2013; 53:982-90. [PMID: 23878024 DOI: 10.1002/jcph.136] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2013] [Accepted: 06/18/2013] [Indexed: 02/02/2023]
Abstract
The grapefruit juice (GFJ)-fexofenadine interaction involves inhibition of intestinal organic anion transporting polypeptide (OATP)-mediated uptake. Only naringin has been shown clinically to inhibit intestinal OATP; other constituents have not been evaluated. The effects of a modified GFJ devoid of furanocoumarins (~99%) and polymethoxyflavones (~90%) on fexofenadine disposition were compared to effects of the original juice. Extracts of both juices inhibited estrone 3-sulfate and fexofenadine uptake by similar extents in OATP-transfected cells (~50% and ~25%, respectively). Healthy volunteers (n = 18) were administered fexofenadine (120 mg) with water, GFJ, or modified GFJ (240 mL) by randomized, three-way crossover design. Compared to water, both juices decreased fexofenadine geometric mean AUC and C(max) by ~25% (P ≤ .008 and P ≤ .011, respectively), with no effect on terminal half-life (P = .11). Similar effects by both juices on fexofenadine pharmacokinetics indicate furanocoumarins and polymethoxyflavones are not major mediators of the GFJ-fexofenadine interaction.
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Affiliation(s)
- Christina S Won
- Eshelman School of Pharmacy, The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
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