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Lu X, Yin N, Chen C, Zhou Y, Ji L, Zhang B, Hu H. Mangiferin alleviates cisplatin-induced ototoxicity in sensorineural hearing loss. Biomed Pharmacother 2024; 178:117174. [PMID: 39098177 DOI: 10.1016/j.biopha.2024.117174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2024] [Revised: 07/16/2024] [Accepted: 07/22/2024] [Indexed: 08/06/2024] Open
Abstract
Mangiferin(MGF) exhibits crucial biological roles, including antioxidant and anti-inflammatory functions. However, how to clearly elucidate the functioning mechanism of MGF for inhibiting cisplatin-induced hearing loss requires in-depth investigation. In this work, we aimed at gaining insight into how MGF functions as the protective agent against cisplatin-triggered ototoxicity using various assays. The variation for reactive oxygen species (ROS) concentrations was determined with MitoSOX-Red and 2',7'-Dichlorodihydrofluorescein diacetate staining (DCFH-DA). The protective function and corresponding mechanism of MGF in hair cell survival in the House Ear Institute-Organ of Corti (HEI-OC1) cell line were assessed using RNA sequencing (RNA-Seq). Our findings demonstrated that MGF significantly alleviated cisplatin-induced injury to hair cells in vitro, encompassing cell lines and cochlear explants, as well as in vivo models, including C57BL/6 J mice and zebrafish larvae. Mechanistic studies revealed that MGF reversed the increased accumulation of ROS and inhibited cell apoptosis through mitochondrial-mediated intrinsic pathway. Moreover, real-time quantitative polymerase chain reaction (RT-qPCR) and western blotting data indicated MGF protected against cisplatin-mediated ototoxicity via the mitogen-activated protein kinase pathway (MAPK). These findings demonstrated MGF has significant potential promise in combating cisplatin-induced ototoxicity, offering a foundation for expanded investigation into therapeutic approaches for auditory protection.
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Affiliation(s)
- Xiaochan Lu
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Na Yin
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Chen Chen
- Department of Otorhinolaryngology, Shenzhen Children's Hospital, Shenzhen 518034, China
| | - Yaqi Zhou
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Lingchao Ji
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Bin Zhang
- Department of Otolaryngology, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen 518035, China.
| | - Hongyi Hu
- Department of Otorhinolaryngology, Peking University Shenzhen Hospital, Shenzhen 518036, China.
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Chen F, Wang N, Tian X, Su J, Qin Y, He R, He X. The Protective Effect of Mangiferin on Formaldehyde-Induced HT22 Cell Damage and Cognitive Impairment. Pharmaceutics 2023; 15:1568. [PMID: 37376018 DOI: 10.3390/pharmaceutics15061568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/28/2023] [Accepted: 05/18/2023] [Indexed: 06/29/2023] Open
Abstract
Formaldehyde (FA) has been found to induce major Alzheimer's disease (AD)-like features including cognitive impairment, Aβ deposition, and Tau hyperphosphorylation, suggesting that it may play a significant role in the initiation and progression of AD. Therefore, elucidating the mechanism underlying FA-induced neurotoxicity is crucial for exploring more comprehensive approaches to delay or prevent the development of AD. Mangiferin (MGF) is a natural C-glucosyl-xanthone with promising neuroprotective effects, and is considered to have potential in the treatment of AD. The present study was designed to characterize the effects and mechanisms by which MGF protects against FA-induced neurotoxicity. The results in murine hippocampal cells (HT22) revealed that co-treatment with MGF significantly decreased FA-induced cytotoxicity and inhibited Tau hyperphosphorylation in a dose-dependent manner. It was further found that these protective effects were achieved by attenuating FA-induced endoplasmic reticulum stress (ERS), as indicated by the inhibition of the ERS markers, GRP78 and CHOP, and downstream Tau-associated kinases (GSK-3β and CaMKII) expression. In addition, MGF markedly inhibited FA-induced oxidative damage, including Ca2+ overload, ROS generation, and mitochondrial dysfunction, all of which are associated with ERS. Further studies showed that the intragastric administration of 40 mg/kg/day MGF for 6 weeks significantly improved spatial learning ability and long-term memory in C57/BL6 mice with FA-induced cognitive impairment by reducing Tau hyperphosphorylation and the expression of GRP78, GSK-3β, and CaMKII in the brains. Taken together, these findings provide the first evidence that MGF exerts a significant neuroprotective effect against FA-induced damage and ameliorates mice cognitive impairment, the possible underlying mechanisms of which are expected to provide a novel basis for the treatment of AD and diseases caused by FA pollution.
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Affiliation(s)
- Fan Chen
- School of Basic Medical Sciences, Dali University, Dali 671003, China
| | - Na Wang
- School of Basic Medical Sciences, Dali University, Dali 671003, China
| | - Xinyan Tian
- School of Basic Medical Sciences, Dali University, Dali 671003, China
| | - Juan Su
- School of Basic Medical Sciences, Dali University, Dali 671003, China
| | - Yan Qin
- School of Basic Medical Sciences, Dali University, Dali 671003, China
| | - Rongqiao He
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100045, China
- Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100045, China
| | - Xiaping He
- School of Basic Medical Sciences, Dali University, Dali 671003, China
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Mangiferin: the miraculous xanthone with diverse pharmacological properties. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:851-863. [PMID: 36656353 DOI: 10.1007/s00210-022-02373-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 12/19/2022] [Indexed: 01/20/2023]
Abstract
Mangiferin (1,3,6,7-tetrahydroxy-2-[3,4,5-trihydroxy-6-(hydroxymethyl) oxan-2-yl] xanthen-9-one) is a bioactive component derived primarily from the mango tree. Belonging to the Xanthone family, its structure allows it to engage with a variety of pharmacological targets. The symmetric linked core of xanthones has a heterogeneous biogenetic background. The carbon atoms are designated in a biochemical order, which reveals the reason of ring A (C1-C4) being referred to as acetate originated, and ring B (C5-C8) is referred to as shikimate originated. The antibacterial, hypocholesterolemic, antiallergic, cardiotonic, antidiabetic, anti-neoplastic, neuroprotective, antioxidant and immunomodulatory properties have all been demonstrated for the secondary metabolite. This study assessed and explained the important medical properties of mangiferin available in published literature, as well as its natural source, biosynthesis, absorption and bioavailability; multiple administration routes; metabolism; nanotechnology for enhanced efficacy of mangiferin and its toxicity, to aid the anticipated on-going potential of mangiferin as a novel diagnostic treatment.
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Therapeutic potential of mangiferin in the treatment of various neuropsychiatric and neurodegenerative disorders. Neurochem Int 2020; 143:104939. [PMID: 33346032 DOI: 10.1016/j.neuint.2020.104939] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 11/02/2020] [Accepted: 12/12/2020] [Indexed: 12/19/2022]
Abstract
Xanthones are important chemical class of bioactive products that confers therapeutic benefits. Of several xanthones, mangiferin is known to be distributed widely across several fruits, vegetables and medicinal plants. Mangiferin has been shown to exert neuroprotective effects in both in-vitro and in-vivo models. Mangiferin attenuates cerebral infarction, cerebral edema, lipid peroxidation (MDA), neuronal damage, etc. Mangiferin further potentiate levels of endogenous antioxidants to confer protection against the oxidative stress inside the neurons. Mangiferin is involved in the regulation of various signaling pathways that influences the production and levels of proinflammatory cytokines in brain. Mangiferin cosunteracted the neurotoxic effect of amyloid-beta, MPTP, rotenone, 6-OHDA etc and confer protection to neurons. These evidence suggested that the mangiferin may be a potential therapeutic strategy for the treatment of various neurological disorders. The present review demonstrated the pharmacodynamics-pharmacokinetics of mangiferin and neurotherapeutic potential in several neurological disorders with underlying mechanisms.
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Honeybush Extracts ( Cyclopia spp.) Rescue Mitochondrial Functions and Bioenergetics against Oxidative Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1948602. [PMID: 32831989 PMCID: PMC7428828 DOI: 10.1155/2020/1948602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/09/2020] [Indexed: 11/17/2022]
Abstract
Mitochondrial dysfunction plays a major role not only in the pathogenesis of many oxidative stress or age-related diseases such as neurodegenerative as well as mental disorders but also in normal aging. There is evidence that oxidative stress and mitochondrial dysfunction are the most upstream and common events in the pathomechanisms of neurodegeneration. Cyclopia species are endemic South African plants and some have a long tradition of use as herbal tea, known as honeybush tea. Extracts of the tea are gaining more scientific attention due to their phenolic composition. In the present study, we tested not only the in vitro mitochondria-enhancing properties of honeybush extracts under physiological conditions but also their ameliorative properties under oxidative stress situations. Hot water and ethanolic extracts of C. subternata, C. genistoides, and C. longifolia were investigated. Pretreatment of human neuroblastoma SH-SY5Y cells with honeybush extracts, at a concentration range of 0.1-1 ng/ml, had a beneficial effect on bioenergetics as it increased ATP production, respiration, and mitochondrial membrane potential (MMP) after 24 hours under physiological conditions. The aqueous extracts of C. subternata and C. genistoides, in particular, showed a protective effect by rescuing the bioenergetic and mitochondrial deficits under oxidative stress conditions (400 μM H2O2 for 3 hours). These findings indicate that honeybush extracts could constitute candidates for the prevention of oxidative stress with an impact on aging processes and age-related neurodegenerative disorders potentially leading to the development of a condition-specific nutraceutical.
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Fabrication of a novel amperometric sensing platform for determination of mangiferin. SENSING AND BIO-SENSING RESEARCH 2020. [DOI: 10.1016/j.sbsr.2020.100352] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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Mittal S, Iqubal MK, Iqbal B, Gupta MM, Ali J, Baboota S. A pervasive scientific overview on mangiferin in the prevention and treatment of various diseases with preclinical and clinical updates. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2020; 18:9-21. [PMID: 32427121 DOI: 10.1515/jcim-2019-0250] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 12/22/2019] [Indexed: 01/24/2023]
Abstract
Natural products are increasing used in preventing and treating various diseases. Mangiferin belongs to the xanthone family, and has potential antiangiogenic, anticancer, immunomodulatory and anti-inflammatory activity along with the antioxidant activity. It is also used in the treatment of cardiac problem, diabetes and neurodegenerative disease. Finding of various researchers proves that mangiferin has a broad spectrum therapeutic application. Motive of this review is to describe the various studies performed on mangiferin for its different pharmacological activities. It also discusses various challenges associated with mangiferin such as stability and bioavailability. Strategies and approaches to improve bioavailability of mangiferin have also been discussed. Both research and review articles were used to write the manuscript. They were collected from various search engines like Pub Med, Science Direct and Google Scholar, using keywords like mangiferin, polyphenol, bioavailability enhancement, solubility enhancement, and antioxidant. Mangiferin being a potent antioxidant is effective in the treatment of various diseases. With novel drug delivery approaches we can overcome poor solubility and bioavailability problem which eventually can result to better utilisation of mangiferin in treating a variety of diseases and make mangiferin a revolutionary drug.
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Affiliation(s)
- Saurabh Mittal
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Mohammad Kashif Iqubal
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Babar Iqbal
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Madan Mohan Gupta
- School of Pharmacy, Faculty of Medical Science, The University of the West Indies, St. Augustine, Trinidad & Tobago, West Indies
| | - Javed Ali
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
| | - Sanjula Baboota
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi, 110062, India
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Tissue distribution study of mangiferin after intragastric administration of mangiferin monomer, Rhizoma Anemarrhenae, and Rhizoma Anemarrhenae-Phellodendron decoctions in normal or type 2 diabetic rats by LC-MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1122-1123:18-28. [DOI: 10.1016/j.jchromb.2019.05.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 11/20/2022]
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Feng ST, Wang ZZ, Yuan YH, Sun HM, Chen NH, Zhang Y. Mangiferin: A multipotent natural product preventing neurodegeneration in Alzheimer's and Parkinson's disease models. Pharmacol Res 2019; 146:104336. [PMID: 31271846 DOI: 10.1016/j.phrs.2019.104336] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 01/06/2023]
Abstract
Alzheimer's disease (AD) and Parkinson's disease (PD) are recognized as the universal neurodegenerative diseases, with the involvement of misfolded proteins pathology, leading to oxidative stress, glial cells activation, neuroinflammation, mitochondrial dysfunction, and cellular apoptosis. Several discoveries indicate that accumulation of pathogenic proteins, i.e. amyloid β (Aβ), the microtubule-binding protein tau, and α-synuclein, are parallel with oxidative stress, neuroinflammation, and mitochondrial dysfunction. Whether the causative factors are misfolded proteins or these pathophysiological changes, leading to neurodegeneration still remain ambiguous. Importantly, directing pharmacological researches towards the prevention of AD and PD seem a promising approach to detect these complicating mechanisms, and provide new insight into therapy for AD and PD patients. Mangiferin (MGF, 2-C-β-D-glucopyranosyl-1, 3, 6, 7-tetrahydroxyxanthone), well-known as a natural product, is detached from multiple plants, including Mangifera indica L. With the structure of C-glycosyl and phenolic moiety, MGF possesses multipotent properties starting from anti-oxidant effects, to the alleviation of mitochondrial dysfunction, neuroinflammation, and cellular apoptosis. In particular, MGF can cross the blood-brain barrier to exert neuronal protection. Different researches implicate that MGF is able to protect the central nervous system from oxidative stress, mitochondrial dysfunction, neuroinflammation, and apoptosis under in vitro and in vivo models. Additional facts support that MGF plays a role in improving the declined memory and cognition of rat models. Taken together, the neuroprotective capacity of MGF may stand out as an agent candidate for AD and PD therapy.
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Affiliation(s)
- Si-Tong Feng
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhen-Zhen Wang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yu-He Yuan
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hong-Mei Sun
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Nai-Hong Chen
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yi Zhang
- Department of Anatomy, School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 102488, China.
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Mangiferin attenuates blast-induced traumatic brain injury via inhibiting NLRP3 inflammasome. Chem Biol Interact 2017; 271:15-23. [DOI: 10.1016/j.cbi.2017.04.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 04/24/2017] [Indexed: 02/07/2023]
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Bhattacherjee A, Dhara K, Chakraborti AS. Argpyrimidine-tagged rutin-encapsulated biocompatible (ethylene glycol dimers) nanoparticles: Synthesis, characterization and evaluation for targeted drug delivery. Int J Pharm 2016; 509:507-517. [DOI: 10.1016/j.ijpharm.2016.05.042] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 04/26/2016] [Accepted: 05/21/2016] [Indexed: 01/12/2023]
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12
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Xie YY, Wang XM, Wang SH, Wang YM, Tian HF, Yuan YS, Li HY, Liang QL, Luo GA. Metabolism and pharmacokinetics of major polyphenol components in rat plasma after oral administration of total flavonoid tablet from Anemarrhenae Rhizoma. J Chromatogr B Analyt Technol Biomed Life Sci 2016; 1026:134-144. [DOI: 10.1016/j.jchromb.2015.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2015] [Revised: 11/28/2015] [Accepted: 12/02/2015] [Indexed: 12/18/2022]
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Sheng N, Zhi X, Yuan L, Zhang Z, Jia P, Zhang X, Zhang L, Wang X. Pharmacokinetic and excretion study of three secoiridoid glycosides and three flavonoid glycosides in rat by LC–MS/MS after oral administration of the Swertia pseudochinensis extract. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 967:75-83. [DOI: 10.1016/j.jchromb.2014.07.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Revised: 05/30/2014] [Accepted: 07/07/2014] [Indexed: 10/25/2022]
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Hewavitharana AK, Tan ZW, Shimada R, Shaw PN, Flanagan BM. Between fruit variability of the bioactive compounds, β-carotene and mangiferin, in mango (Mangifera indica). Nutr Diet 2013. [DOI: 10.1111/1747-0080.12009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
| | - Zhi W. Tan
- School of Pharmacy; The University of Queensland; Brisbane; Queensland; Australia
| | - Ryo Shimada
- School of Pharmacy; The University of Queensland; Brisbane; Queensland; Australia
| | - Paul N. Shaw
- School of Pharmacy; The University of Queensland; Brisbane; Queensland; Australia
| | - Bernadine M. Flanagan
- Centre for Nutrition and Food Sciences; The University of Queensland; Brisbane; Queensland; Australia
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van der Merwe JD, Joubert E, Manley M, de Beer D, Malherbe CJ, Gelderblom WCA. Mangiferin glucuronidation: important hepatic modulation of antioxidant activity. Food Chem Toxicol 2011; 50:808-15. [PMID: 22137905 DOI: 10.1016/j.fct.2011.11.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 10/24/2011] [Accepted: 11/15/2011] [Indexed: 10/15/2022]
Abstract
Mangiferin displays an extensive spectrum of pharmacological properties, including antioxidant activity. Its phase II metabolism in the presence of Aroclor 1254-induced and un-induced microsomal and cytosolic fractions from rat liver and the antioxidant potency of the glucuronidated conjugates were investigated. Mangiferin was not a substrate for the cytosolic sulphotransferases. Glucuronidation led to the formation of two monoglucuronidated metabolites of mangiferin and a monoglucuronidated metabolite of homomangiferin (a minor constituent of the mangiferin standard). Deconjugation utilising glucuronidase resulted in the disappearance of the metabolites, with the concomitant formation of the two parent compounds. Considering steric hinderance caused by the C-2 glucosyl moiety and the relative acidity of the xanthone OH groups, the 6-OH of mangiferin and, to a lesser degree the 7-OH, are likely to be the primary glucuronidation targets. The ferric iron reducing ability of the glucuronidated reaction mixture was reduced, while the free radical scavenging abilities of mangiferin, utilising on-line post-column HPLC-DAD-DPPH· and HPLC-DAD-ABTS·+ assays, were eliminated, providing further evidence that the catechol arrangement at C-6 and C-7 was the preferred site of conjugation. This paper provides the first evidence that the glucuronidated metabolites of mangiferin resulted in a loss in free radical scavenging and ferric iron reducing ability.
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Affiliation(s)
- J Debora van der Merwe
- Department of Food Science, Stellenbosch University, Private Bag X1, Matieland, Stellenbosch 7602, South Africa
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Han D, Chen C, Zhang C, Zhang Y, Tang X. Determination of mangiferin in rat plasma by liquid-liquid extraction with UPLC-MS/MS. J Pharm Biomed Anal 2009; 51:260-3. [PMID: 19699046 DOI: 10.1016/j.jpba.2009.07.021] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2009] [Revised: 07/15/2009] [Accepted: 07/16/2009] [Indexed: 12/19/2022]
Abstract
An ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) method employing electrospray ionization (ESI) has been developed for the determination of mangiferin in rat plasma using diphenhydramine as the internal standard (IS). Liquid-liquid extraction (LLE) was used for sample preparation and the analysis was achieved with gradient elution on C(18) reversed phase column. The method was validated over the concentration range 0.02-5.0 microg/mL for oral administration and 0.4-100 microg/mL for intravenous administration. The intra-day and inter-day precision of mangiferin expressed as RSD<15% and the accuracy (RE) did not exceed 15%. This validated method is a novel technique for sample preparation and quantitation, which was successfully applied to estimate the bioavailability of mangiferin.
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Affiliation(s)
- Dandan Han
- College of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
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Abstract
South African herbal teas, rooibos and honeybush, are increasingly enjoyed as healthy alternatives to Camellia sinensis teas. They contribute to the diet with bioactive phytochemicals not commonly found in foods. Major compounds of rooibos are the unique dihydrochalcone, aspalathin, and its flavone isomers, orientin and isoorientin. Honeybush contributes the xanthones, mangiferin and isomangiferin and the flavanones, eriocitrin, narirutin and hesperidin. All these compounds are either C-glucosides or O-rhamnoglucosides, which are poorly absorbed. Phase II metabolism and degradation by intestinal bacteria are important factors in their absorption. Modulation of drug metabolising enzymes is indicated which not only could affect the therapeutic window of drugs, but also the bioavailability of other dietary flavonoids.
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