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Mohamed NZ, Shaaban L, Safan S, El-Sayed AS. Phytochemical and metabolic profiling of the different Podocarpus species in Egypt: Potential antimicrobial and antiproliferative activities. Heliyon 2023; 9:e20034. [PMID: 37810029 PMCID: PMC10559778 DOI: 10.1016/j.heliyon.2023.e20034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 08/04/2023] [Accepted: 09/08/2023] [Indexed: 10/10/2023] Open
Abstract
Podocarpus is the most dominant genus of Podocarpaceae, with higher taxonomical proximity to the Taxaceae, having numerous pharmaceutical applications, however, scarce studies dealing with the physiological and metabolic criteria of Podocarpus in Egypt were reported. Thus, the objective of this work was to assess the physiological and metabolical patterns of the different species of Podocarpus; P. gracilior, P. elongates, P. macrophyllus and P. neriifolius. The highest terpenoids contents were reported in P. neriifolius, followed by P. elongatus, and P. macrophyllus. P. gracilior had the highest antioxidants amount, followed by P. macrophyllus, P. neriifolius and P. elongatus. From the GC/MS metabolic profiling, caryophyllene, β-cadinene, β-cuvebene, vitispirane, β-cadinene and amorphene were the most dominant metabolites in P. gracilior. β-Caryophyllene was the common in P. gracilior, P. elongatus, P. macrophyllus and P. neriifolius with an obvious fluctuation. The plant methanolic extracts have an obvious activity against the multidrug resistant bacteria; E. coli, P. aeruginosa, S. pyogenes and S. aureus, and fungi; A. fumigatus, A. flavus, A. niger and C. albicans in a concentration-dependent manner. The highest Taxol yield was assessed in the extracts of P. elongatus (16.4 μg/gdw), followed by P. macrophyllus, and P. neriifolius. The chemical identity of Taxol derived from P. elongatus was resolved by LC/MS, with molecular mass 854.6 m/z, and similar structural fragmentation pattern of the authentic one. The highest antitumor activity of P. elongatus extracted Taxol was assessed towards HCT-116 (30.2 μg/ml), HepG-2 (53.7 μg/ml) and MCF-7 (71.8 μg/ml). The ITS sequence of P. elongatus "as potent Taxol producer" was deposited on Genbank with accession #ON540734.1, that is the first record of Podocarpus species on Genbank.
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Affiliation(s)
- Nabil Z. Mohamed
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Lamis Shaaban
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Samia Safan
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
| | - Ashraf S.A. El-Sayed
- Botany and Microbiology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
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2
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Wang YF, Shi QW, Dong M, Kiyota H, Gu YC, Cong B. Natural Taxanes: Developments Since 1828. Chem Rev 2011; 111:7652-709. [DOI: 10.1021/cr100147u] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yu-Fang Wang
- School of Pharmaceutical Sciences, Hebei Medical University, Shijiazhuang, Hebei Province, 050017, China
| | - Qing-Wen Shi
- School of Pharmaceutical Sciences, Hebei Medical University, Shijiazhuang, Hebei Province, 050017, China
| | - Mei Dong
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Shijiazhuang, Hebei Province, 050017, China
| | - Hiromasa Kiyota
- Department of Bioscience and Biotechnology for Future Bioindustry, Graduate School of Agricultural Science, Tohoku University, 1-1 Tsutsumidori-Amamiya, Aoba-ku, Sendai 981-8555, Japan
| | - Yu-Cheng Gu
- School of Pharmaceutical Sciences, Hebei Medical University, Shijiazhuang, Hebei Province, 050017, China
- Syngenta Jealott’s Hill International Research Centre, Berkshire, RG42 6EY, U.K
| | - Bin Cong
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Shijiazhuang, Hebei Province, 050017, China
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Nageswara Rao R, Satyanarayana Raju S, Mastan Vali R, Sarma VUM, Girija Sankar G. LC-ESI-MS/MS determination of paclitaxel on dried blood spots. Biomed Chromatogr 2011; 26:616-21. [DOI: 10.1002/bmc.1706] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Accepted: 08/09/2011] [Indexed: 11/10/2022]
Affiliation(s)
- R. Nageswara Rao
- Analytical Chemistry Division; Indian Institute of Chemical Technology; Tarnaka; Hyderabad-500 607; India
| | - S. Satyanarayana Raju
- Organic Division-I; Indian Institute of Chemical Technology; Tarnaka; Hyderabad-500 607; India
| | - R. Mastan Vali
- Analytical Chemistry Division; Indian Institute of Chemical Technology; Tarnaka; Hyderabad-500 607; India
| | - V. U. M. Sarma
- Organic Division-I; Indian Institute of Chemical Technology; Tarnaka; Hyderabad-500 607; India
| | - G. Girija Sankar
- Department of Biotechnology, University College of Pharmacy; Andhra University; Visakhapatnam-530003; India
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Mansion F, Chiap P, Houbart V, Crommen J, Servais AC, Fillet M. Optimization of micro-HPLC peak focusing for the detection and quantification of low hepcidin concentrations. J Sep Sci 2011; 34:1820-7. [DOI: 10.1002/jssc.201100244] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Revised: 05/11/2011] [Accepted: 05/11/2011] [Indexed: 11/10/2022]
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5
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Dong PP, Ge GB, Zhang YY, Ai CZ, Li GH, Zhu LL, Luan HW, Liu XB, Yang L. Quantitative structure-retention relationship studies for taxanes including epimers and isomeric metabolites in ultra fast liquid chromatography. J Chromatogr A 2009; 1216:7055-62. [PMID: 19747683 DOI: 10.1016/j.chroma.2009.08.079] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2009] [Revised: 08/24/2009] [Accepted: 08/28/2009] [Indexed: 10/20/2022]
Abstract
Seven pairs of epimers and one pair of isomeric metabolites of taxanes, each pair of which have similar structures but different retention behaviors, together with additional 13 taxanes with different substitutions were chosen to investigate the quantitative structure-retention relationship (QSRR) of taxanes in ultra fast liquid chromatography (UFLC). Monte Carlo variable selection (MCVS) method was adopted to choose descriptors. The selected four descriptors were used to build QSRR model with multi-linear regression (MLR) and artificial neural network (ANN) modeling techniques. Both linear and nonlinear models show good predictive ability, of which ANN model was better with the determination coefficient R(2) for training, validation and test set being 0.9892, 0.9747 and 0.9840, respectively. The results of 100 times' leave-12-out cross validation showed the robustness of this model. All the isomers can be correctly differentiated by this model. According to the selected descriptors, the three dimensional structural information was critical for recognition of epimers. Hydrophobic interaction was the uppermost factor for retention in UFLC. Molecules' polarizability and polarity properties were also closely correlated with retention behaviors. This QSRR model will be useful for separation and identification of taxanes including epimers and metabolites from botanical or biological samples.
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Affiliation(s)
- Pei-Pei Dong
- Laboratory of Pharmaceutical Resource Discovery, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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Li S, Fu Y, Zu Y, Sun R, Wang Y, Zhang L, Luo H, Gu C, Efferth T. Determination of paclitaxel and other six taxoids in Taxus species by high-performance liquid chromatography–tandem mass spectrometry. J Pharm Biomed Anal 2009; 49:81-9. [DOI: 10.1016/j.jpba.2008.10.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2008] [Revised: 10/07/2008] [Accepted: 10/08/2008] [Indexed: 11/25/2022]
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7
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Optimization of capillary liquid chromatography with electrochemical detection for determining femtogram levels of baicalin and baicalein on the basis of the FUMI theory. J Pharm Biomed Anal 2008; 48:780-7. [DOI: 10.1016/j.jpba.2008.08.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 07/29/2008] [Accepted: 08/01/2008] [Indexed: 11/17/2022]
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8
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O'Toole M, Lau KT, Shazmann B, Shepherd R, Nesterenko PN, Paull B, Diamond D. Novel integrated paired emitter-detector diode (PEDD) as a miniaturized photometric detector in HPLC. Analyst 2006; 131:938-43. [PMID: 17028728 DOI: 10.1039/b602846b] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel low power, low cost, highly sensitive, miniaturized light emitting diode (LED) based flow detector has been used as optical detector for the detection of sample components in high performance liquid chromatography (HPLC). This colorimetric detector employs two LEDs, one operating in normal mode as a light source and the other is reverse biased to work as a light detector. Instead of measuring the photocurrent directly, a simple timer circuit is used to measure the time taken for the photocurrent generated by the emitter LED (lambda(max) 500 nm) to discharge the detector LED (lambda(max) 621 nm) from 5 V (logic 1) to 1.7 V (logic 0) to give digital output directly without using an A/D converter. Employing a post-column reagent method, a Nucleosil 100-7 column (functionalized with iminodiacetic acid (IDA) groups) was used to separate a mixture of transition metal complexes, manganese(II) and cobalt(II) in 4-(2-pyridylazo)-resorcinol (PAR). All optical measurements were taken by using both the in-built HPLC variable wavelength detector and the proposed paired-emitter-detector-diode (PEDD) optical detector configured in-line for data comparison. The concentration range investigated using the PEDD was found to give a linear response to the Mn(II) and Co(II) PAR complexes. The effects of flow rate and emitter LED light source intensity were investigated. Under optimised conditions the PEDD detector offered a linear range of 0.9-100 microM and LOD of 0.09 microM for Mn-PAR complex. A linear range of 0.2-100 microM and LOD of 0.09 microM for Co-PAR complex was achieved.
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Affiliation(s)
- Martina O'Toole
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
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Gréen H, Vretenbrant K, Norlander B, Peterson C. Measurement of paclitaxel and its metabolites in human plasma using liquid chromatography/ion trap mass spectrometry with a sonic spray ionization interface. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2006; 20:2183-9. [PMID: 16791868 DOI: 10.1002/rcm.2567] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
A quantitative liquid chromatography/ion trap mass spectrometry method for the simultaneous determination of paclitaxel, 6alpha-hydroxypaclitaxel and p-3'-hydroxypaclitaxel in human plasma has been developed and validated. 6alpha-,p-3'-Dihydroxypaclitaxel was also quantified using paclitaxel as a reference and docetaxel as an internal standard. The substances were extracted from 0.500 mL plasma using solid-phase extraction. The elution was performed with acetonitrile and the samples were reconstituted in the mobile phase. Isocratic high-performance liquid chromatography analysis was performed by injecting 50 microL of reconstituted material onto a 100 x 3.00 mm C12 column with a methanol:1% trifluoroacetic acid/ammonium trifluoroacetate in H(2)O 70:30 mobile phase at 350 microL/min. The [M+H](+) ions generated in the sonic spray ionization interface were isolated and fragmented using two serial mass spectrometric methods: one for paclitaxel (transition 854 --> 569 & 551) and the dihydroxymetabolite (transition 886 --> 585 & 567) and one for the hydroxy metabolites (transition 870 --> 585 & 567; transition 870 --> 569 & 551) and docetaxel ([M+Na](+), transition 830 --> 550). Calibration curves were created ranging between 0.5 and 7500 ng/mL for paclitaxel, 0.5 and 750 ng/mL for 6alpha-hydroxypaclitaxel, and 0.5 and 400 ng/mL for p-3'-hydroxypaclitaxel. Adduct ion formation was noted and investigated during method development and controlled by mobile phase optimization. In conclusion, a sensitive method for simultaneous quantification of paclitaxel and its metabolites suitable for analysis in clinical studies was obtained.
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Affiliation(s)
- Henrik Gréen
- Division of Clinical Pharmacology, Department of Medicine and Care, Faculty of Health Sciences, Linköping University, SE-581 85 Linköping, Sweden.
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Kim SC, Yu J, Lee JW, Park ES, Chi SC. Sensitive HPLC method for quantitation of paclitaxel (Genexol in biological samples with application to preclinical pharmacokinetics and biodistribution. J Pharm Biomed Anal 2005; 39:170-6. [PMID: 16085137 DOI: 10.1016/j.jpba.2005.02.023] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2004] [Revised: 02/14/2005] [Accepted: 02/18/2005] [Indexed: 10/25/2022]
Abstract
A sensitive, specific and reproducible HPLC method has been developed and validated for the quantitative determination of paclitaxel in plasma, tissues and tumor of mice. Tissue specimens including liver, kidneys, spleen, lungs, heart and tumor were separately homogenized in bovine serum albumin (BSA, 40 g/l) in water. Plasma or tissue homogenates (0.1 ml) containing paclitaxel and internal standard (dimethyl-4,4'-dimethoxy-5,6,5',6'-dimethylene dioxy biphenyl-2',2' dicarboxylate (DDB), I.S.) were extracted by ethyl acetate (10 ml). A 4.6 mm x 250 mm ODS column was used to separate the components in biological samples with UV detection at 227 nm and gradient system was applied to a quantitation of paclitaxel consisting of acetonitrile-deionized water. The I.S. and paclitaxel were eluted at 13.7 and 18.0 min, respectively, and no interfering peaks were observed. Linear relationships (r(2) > 0.999) were obtained between the peak height ratios and the corresponding biological sample concentrations over the range of 0.1-20 microg/ml. The average intra- and inter-day variations (% R.S.D.s and % deviations) of the assay for biological samples were less than 10%. The LOD and LOQ were 5 and 10 ng/ml, respectively, for paclitaxel using a microsample volume (100 microl) of plasma sample. This HPLC method has been successfully applied for the determination of paclitaxel in pharmacokinetic and biodistribution study in after administration of 50 mg equivalent paclitaxel/kg dose of paclitaxel-loaded polymeric micelle and 20 mg equivalent paclitaxel/kg dose of Taxol to female SPF C57BL/6 mice.
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Affiliation(s)
- Sung Chul Kim
- College of Pharmacy, Sungkyunkwan University, Jangan-ku, Suwon, Kyunggi-do, South Korea.
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Ciutaru D, Badea I, Lazara L, Nicolescu D, Tudose A. A HPLC validated assay of paclitaxel’s related impurities in pharmaceutical forms containing Cremophor® EL. J Pharm Biomed Anal 2004; 34:493-9. [PMID: 15127804 DOI: 10.1016/s0731-7085(03)00632-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A HPLC method has been developed for the determination of the paclitaxel's related impurities in pharmaceutical forms. This method ensures the rapid determination of related impurities in the presence of polyoxyl castor oil--the main constituent of paclitaxel's clinical formulation vehicle. The method is simple and does not require any preliminary treatment of the sample. The method was fully validated.
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Affiliation(s)
- Dana Ciutaru
- Sindan Pharmaceutical Co., 11 Ion Mihalache Blvd., 78168 Bucharest, Romania
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Pruvost A, Ragueneau I, Ferry A, Jaillon P, Grognet J, Benech H. Fully automated determination of eserine N-oxide in human plasma using on-line solid-phase extraction with liquid chromatography coupled with electrospray ionization tandem mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2000; 35:625-633. [PMID: 10800052 DOI: 10.1002/(sici)1096-9888(200005)35:5<625::aid-jms988>3.0.co;2-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A sensitive and entirely automated solid-phase extraction/liquid chromatography/electrospray ionization tandem mass spectrometric (SPE/LC/ESI-MS/MS) method was developed and validated for the determination of eserine N-oxide (ENO), a cholinesterase inhibitor-like physostigmine in human plasma, for use in pharmacokinetic studies. ENO is light-sensitive and the use of a fully on-line process increased the reliability of the assay. Plasma samples previously mixed with neostigmine bromide to prevent in vitro degradation, and tacrine as internal standard (IS), were directly injected into the SPE/LC/ESI-MS/MS system. MS software piloted the overall system. MS/MS detection of ENO and the IS was performed in the positive ion ESI mode using multiple reaction monitoring. The linear calibration curve for ENO ranged from 25 pg ml(-1) to 12.5 ng ml(-1). The limit of quantitation was 25 pg ml(-1) with 250 microl of plasma injected. Precision, accuracy and stability tests were within the acceptable range and just one analyst is required to analyze 50 unknown samples a day five days per week, from the preparation of the samples (i.e. thawing and centrifugation) to data processing. A pilot pharmacokinetic study in three healthy volunteers treated with 4.5 mg of ENO (Génésérine3((R))) showed that the method was suitable for pharmacokinetic studies in humans.
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Affiliation(s)
- A Pruvost
- CEA, Service de Pharmacologie et d'Immunologie, DSV/DRM, CEA/Saclay, 91191 Gif-sur-Yvette cedex, France
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Schellen A, Ooms B, van Gils M, Halmingh O, van der Vlis E, van de Lagemaat D, Verheij E. High throughput on-line solid phase extraction/tandem mass spectrometric determination of paclitaxel in human serum. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2000; 14:230-233. [PMID: 10669881 DOI: 10.1002/(sici)1097-0231(20000229)14:4<230::aid-rcm872>3.0.co;2-j] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The feasibility of high throughput on-line solid phase extraction/tandem mass spectrometry (SPE/MS/MS) is tested for target analysis of paclitaxel in human serum. The use of a dual Prospekt system, with parallel SPE and elution directly to the mass spectrometer, resulted in a cycle time of 80 seconds for the entire, fully automated assay. The assay proved to be linear from 1 to 1000 ng/mL. Cartridges packed with small sorbent particles functioned both as SPE cartridges and as short analytical columns.
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Affiliation(s)
- A Schellen
- Spark Holland BV, P.O. Box 388, 7800 AJ Emmen, The Netherlands
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Gaillard Y, Pepin G. Poisoning by plant material: review of human cases and analytical determination of main toxins by high-performance liquid chromatography-(tandem) mass spectrometry. JOURNAL OF CHROMATOGRAPHY. B, BIOMEDICAL SCIENCES AND APPLICATIONS 1999; 733:181-229. [PMID: 10572982 DOI: 10.1016/s0378-4347(99)00181-4] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The authors have reviewed the main toxic plants responsible for human deaths throughout the world. Forty plants (genera or species) were listed in order to establish an inventory of the active molecules that could be identified, the already published analytical methods and the reported human fatal cases. In a second step, the authors have developed a general method for the detection of various toxins in whole blood by high-performance liquid chromatography coupled to mass spectrometry or tandem mass spectrometry. Sample preparation was realized by liquid-liquid extraction at pH 9.5 for oleandrine, taxol and the alkaloids. These latter compounds were divided into two groups following their chemical properties and could be subsequently purified by acid/base clean up. Cyanogenic compounds and atractyloside were isolated by precipitation of the protein content with acetone and purified for atractyloside by washing with chloroform. Separation of the drugs occurred under reversed-phase conditions on a C18 analytical column 150x2 mm I.D. (5 microm particle size) using two different mobile phases. The first one, formiate buffer 2 mM acidified at pH 3.0, was used for the separation of atractyloside, oleandrine, taxol, the cyanogenic molecules and some alkaloids. The second mobile phase, formiate buffer 10 mM made basic at pH 8.2 was used for the majority of other alkaloids. A gradient elution mode was chosen using acetonitrile or acetonitrile-methanol (50:50, v/v) as the eluting solvent. Detection under positive ionization mode was the mode of choice for all compounds except for atractyloside (negative ions) and for taxol (mixed mode available). Application to real forensic cases has been demonstrated.
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Affiliation(s)
- Y Gaillard
- Laboratoire d'Expertises TOXLAB, Paris, France
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Abstract
The combination of high-performance liquid chromatography and mass spectrometry (LC/MS) has had a significant impact on drug development over the past decade. Continual improvements in LC/MS interface technologies combined with powerful features for structure analysis, qualitative and quantitative, have resulted in a widened scope of application. These improvements coincided with breakthroughs in combinatorial chemistry, molecular biology, and an overall industry trend of accelerated development. New technologies have created a situation where the rate of sample generation far exceeds the rate of sample analysis. As a result, new paradigms for the analysis of drugs and related substances have been developed. The growth in LC/MS applications has been extensive, with retention time and molecular weight emerging as essential analytical features from drug target to product. LC/MS-based methodologies that involve automation, predictive or surrogate models, and open access systems have become a permanent fixture in the drug development landscape. An iterative cycle of "what is it?" and "how much is there?" continues to fuel the tremendous growth of LC/MS in the pharmaceutical industry. During this time, LC/MS has become widely accepted as an integral part of the drug development process. This review describes the utility of LC/MS techniques for accelerated drug development and provides a perspective on the significant changes in strategies for pharmaceutical analysis. Future applications of LC/MS technologies for accelerated drug development and emerging industry trends are also discussed.
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Affiliation(s)
- M S Lee
- Milestone Development Services, Pennington, New Jersey 08534-0813, USA
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