1
|
Javed S, Kohli K, Ahsan W. Bioavailability augmentation of silymarin using natural bioenhancers: An in vivo pharmacokinetic study. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
|
2
|
Lu Y, Yan Z, Sun G. Fast liquid chromatography method for separation of peptides using a sub-2 μm ground silica monolith packed column. J Sep Sci 2021; 44:4123-4131. [PMID: 34535951 DOI: 10.1002/jssc.202100504] [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: 06/26/2021] [Revised: 09/03/2021] [Accepted: 09/10/2021] [Indexed: 11/08/2022]
Abstract
A stationary phase based on sub-2 μm ground silica monolith particles was fabricated by in situ polymerization and applied in micro-column for separation of peptides. The sub-2 μm silica particles were obtained from monolith using sol-gel process followed by grinding and sedimentation to remove the fines. Initially, the silica monolith particles were pretreated with 3-trimethoxysilyl propyl methacrylate to attach double-bonded ligands onto the surface, then a network structure was formed onto the surface of the particle using styrene, N-isopropylacrylamide, and ethylene glycoldimethacrylate. The effect of the flow rate of the mobile phase on the separation performance was investigated. The stationary phase was characterized by field emission scanning electron microscopy, thermogravimetry, particle size distribution, and element analysis. The resultant phase was packed in glass-lined stainless steel micro-columns (2.1 mm × 50 mm) and evaluated for fast separation. An average number of theoretical plates as high as 9800 plates/column (5.10 μm plate height) was achieved for five synthetic peptides under the optimized flow rate of 0.15 mL/min. The repeatabilities of column-to-column, intraday, and interday through relative standard deviation were found better than 4%, exhibiting satisfactory repeatability of the developed micro-column for fast separation of peptides.
Collapse
Affiliation(s)
- Yao Lu
- Department of pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Zhihong Yan
- Department of pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| | - Genlin Sun
- Department of pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang, China
| |
Collapse
|
3
|
Nguyen NVT, Nguyen KNH, Nguyen KT, Kim KH, Aboul-Enein HY. The impact of chirality on the analysis of alkaloids in plant. PHARMACIA 2021. [DOI: 10.3897/pharmacia.68.e71101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Most of the alkaloids are chiral compounds and are clinically administered as the racemic mixture, even though its enantiomers have been known to exert different pharmacological activity. The determination of the enantiomeric composition of alkaloid-containing plants is subject to severe attention from pharmacological and toxicological points of view. This review gives an overview of the chiral analysis of alkaloids that were used in theoretical studies and applications for plants in recent years.
Collapse
|
4
|
Dogra A, Bhatt S, Magotra A, Sharma A, Kotwal P, Gour A, Wazir P, Singh G, Nandi U. Intervention of curcumin on oral pharmacokinetics of daclatasvir in rat: A possible risk for long-term use. Phytother Res 2018; 32:1967-1974. [PMID: 29806225 DOI: 10.1002/ptr.6123] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/03/2018] [Accepted: 05/02/2018] [Indexed: 12/16/2022]
Abstract
Curcumin, a natural diarylheptanoid, is extensively used as a food additive or dietary supplement on the regular basis. It is known to have potential to encumber the drug transporters and hepatic drug metabolizing enzymes that lead to pharmacokinetic interactions with drug or food. Daclatasvir is a new orally acting drug for the treatment of chronic Hepatitis C Virus infections. This is a substrate of P-glycoprotein and CYP3A4 that are involved in the major pharmacokinetic interaction. Hence, the studies' aim is to assess for any possible pharmacokinetic interactions. Pharmacokinetic studies of daclatasvir in presence or absence of curcumin were carried out in Wistar rats following oral administration. Parallelly, the oral pharmacokinetics of daclatasvir was also determined in the presence of ketoconazole or quinidine. Studies revealed that plasma level of daclatasvir was not altered significantly during concomitant single dose administration of curcumin, whereas significantly decreased upon pretreatment for 7 days with curcumin at high dose level. Ketoconazole and quinidine markedly increase daclatasvir exposure following concomitant administration with daclatasvir. It can be concluded that dose adjustment is unlikely to be required for intermittent use of curcumin at low dose but cautious for chronic and concomitant use of curcumin at a high dose.
Collapse
Affiliation(s)
- Ashish Dogra
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Shipra Bhatt
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Asmita Magotra
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Anjna Sharma
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Pankul Kotwal
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Abhishek Gour
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Priya Wazir
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Gurdarshan Singh
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| | - Utpal Nandi
- PK-PD, Toxicology and Formulation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, India.,Academy of Scientific and Innovative Research (AcSIR), CSIR-Indian Institute of Integrative Medicine, Jammu, India
| |
Collapse
|
5
|
Guichard N, Guillarme D, Bonnabry P, Fleury-Souverain S. Antineoplastic drugs and their analysis: a state of the art review. Analyst 2017; 142:2273-2321. [DOI: 10.1039/c7an00367f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We provide an overview of the analytical methods available for the quantification of antineoplastic drugs in pharmaceutical formulations, biological and environmental samples.
Collapse
Affiliation(s)
- Nicolas Guichard
- Pharmacy
- Geneva University Hospitals (HUG)
- Geneva
- Switzerland
- School of Pharmaceutical Sciences
| | - Davy Guillarme
- School of Pharmaceutical Sciences
- University of Geneva
- University of Lausanne
- Geneva
- Switzerland
| | - Pascal Bonnabry
- Pharmacy
- Geneva University Hospitals (HUG)
- Geneva
- Switzerland
- School of Pharmaceutical Sciences
| | | |
Collapse
|
6
|
Geng C, Wang CH, Hu H, Gao XP, Gong AH, Lin YW, Fan XS, Li H, Yin JY. Development and validation of an UPLC-Q/TOF-MS assay for the quantitation of neopanaxadiol in beagle dog plasma: Application to a pharmacokinetic study. Biomed Chromatogr 2016; 31. [PMID: 27790730 DOI: 10.1002/bmc.3878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 10/16/2016] [Accepted: 10/24/2016] [Indexed: 01/30/2023]
Abstract
Neopanaxadiol (NPD), the main panaxadiol constituent of Panax ginseng C. A. Meyer (Araliaceae), has been regarded as the active component for the treatment of Alzheimer's disease. However, few references are available about pharmacokinetic evaluation for NPD. Accordingly, a rapid and sensitive method for quantitative analysis of NPD in beagle dog plasma based on ultra-performance liquid chromatography quadrupole time-of-flight mass spectrometry was developed and validated. Analytes were extracted from plasma by liquid-liquid extraction and chromatographic separation was achieved on an Agilent Zorbax Stable Bond C18 column. Detection was performed in the positive ion mode using multiple reaction monitoring of the transitions both at m/z 461.4 → 425.4 for NPD and internal standard of panaxadiol. All validation parameters, such as lower limit of quantitation, linearity, specificity, precision, accuracy, extraction recovery, matrix effect and stability, were within acceptable ranges and the method was appropriate for multitude sample determination. After oral intake, NPD was slowly absorbed and eliminated from circulatory blood system and corresponding plasma exposure was low. Application of this quantitative method will yield the first pharmacokinetic profile after oral administration of NPD to beagle dog. The information obtained here will be useful to understand the pharmacological effects of NPD.
Collapse
Affiliation(s)
- Cong Geng
- Department of Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, People's Republic of China
| | - Chun-Hong Wang
- Department of Natural Products Chemistry, College of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, 130021, People's Republic of China
| | - Hong Hu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, People's Republic of China
| | - Xiao-Ping Gao
- Department of Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, People's Republic of China
| | - Ai-Hua Gong
- Department of Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, People's Republic of China
| | - Ying-Wei Lin
- Department of Clinical Laboratory, The Second Affiliated Hospital of Dalian Medical University, 467 Zhongshan Road, Dalian, 116023, People's Republic of China
| | - Xiu-Shuang Fan
- Department of Natural Products Chemistry, College of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, 130021, People's Republic of China
| | - Heng Li
- Department of Natural Products Chemistry, College of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, 130021, People's Republic of China
| | - Jian-Yuan Yin
- Department of Natural Products Chemistry, College of Pharmacy, Jilin University, 1266 Fujin Road, Changchun, 130021, People's Republic of China
| |
Collapse
|
7
|
Sharma N, Kumar C, Dutt P, Gupta S, Satti NK, Chandra S, Kitchlu S, Paul S, Vishwakarma RA, Verma MK. Isolation, Chemical Fingerprinting and Simultaneous Quantification of Four Compounds from Tanacetum gracile Using a Validated HPLC-ESI-QTOF-Mass Spectrometry Method. J Chromatogr Sci 2016; 54:796-804. [PMID: 26951542 PMCID: PMC4890456 DOI: 10.1093/chromsci/bmw013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Revised: 12/31/2015] [Indexed: 11/14/2022]
Abstract
The present study was conducted to carry out the phytochemical investigation of Tanacetum gracile Hook. f. & Thomson and to develop a method for the simultaneous quantification of the isolated compounds in the extracts ofT. gracile growing in different locations. Cluster analysis rectangular similarity matrix was performed to understand the chemical fingerprinting variations in the extracts. High-performance liquid chromatography-electrospray ionization-quadrupole-time-of-flight-mass spectrometry (HPLC-ESI-QTOF-MS) was used to quantify four bioactive compounds, and separation of the compounds was achieved on a reverse-phase C8 column using a mobile phase of acetonitrile: 0.1% formic acid in water with a gradient elution by maintaining the flow rate of 300 μL/min. The QTOF-MS was operated using the electro-spray ionization technique with the positive ion polarity mode. The calibration curves of four marker compounds were linear over the concentration range of 3.12-100 ng/µL (R(2)> 0.996). A specific, accurate and precise HPLC-ESI-QTOF-MS method was optimized for the determination of kaempferol, ketoplenolide, tetramethoxyflavone and artemetin both individually and simultaneously. Quantification of these chemical markers in different extracts was carried out using this validated method. Kaempferol was isolated for the first time from T. gracile.
Collapse
Affiliation(s)
- Neha Sharma
- Analytical Chemistry Division (Instrumentation), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Chetan Kumar
- Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Prabhu Dutt
- Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Suphla Gupta
- Plant Biotechnology Department, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Naresh K Satti
- Natural Product Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Suresh Chandra
- Genetic Resource & Agrotech. Division, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Surinder Kitchlu
- Plant Biotechnology Department, CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| | - Satya Paul
- Department of Chemistry, University of Jammu, Jammu 180006, India
| | | | - Mahendra K Verma
- Analytical Chemistry Division (Instrumentation), CSIR-Indian Institute of Integrative Medicine, Jammu 180001, India
| |
Collapse
|
8
|
A simple dried blood spot method for clinical pharmacological analyses of etoposide in cancer patients using liquid chromatography and fluorescence detection. Clin Chim Acta 2016; 452:99-105. [DOI: 10.1016/j.cca.2015.10.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 10/02/2015] [Accepted: 10/25/2015] [Indexed: 11/24/2022]
|
9
|
Chavarria D, Silva T, Magalhães e Silva D, Remião F, Borges F. Lessons from black pepper: piperine and derivatives thereof. Expert Opin Ther Pat 2015; 26:245-64. [PMID: 26560940 DOI: 10.1517/13543776.2016.1118057] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Piperine is a simple and pungent alkaloid found in the seeds of black pepper (Piper nigrum). Following its isolation and full characterization, the biological properties of piperine have been extensively studied, and piperine-like derivatives have shown an interesting range of pharmacological activities. In this context, significant advances have been made in the discovery of new chemical entities based on the piperine scaffold endowed with therapeutic potential. AREAS COVERED The aim of this review is to provide a thorough inquiry on the therapeutic potential of piperine and related derivatives. It provides an overview of recent developments in patented processes and applications thereof between 2000 and 2015. EXPERT OPINION Cumulative evidence shows that piperine is currently paving its way to become a privileged scaffold for the development of bioactive compounds with therapeutic application in multiple human diseases. In particular, piperine derivatives were shown to modulate the activity of several targets related to neurological disorders, including epilepsy, Parkinson's disease, depression and pain related disorders. Moreover, the efflux pump inhibitory ability of piperine and its analogues tackles important drug resistance mechanisms and may improve the clinical efficacy of antibiotic and anticancer drugs. Although the use of piperine as a scaffold for bioactive compounds is still in its early stages, the continuous exploration of this structure may lead to remarkable advances in drug discovery programs.
Collapse
Affiliation(s)
- D Chavarria
- a CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences , University of Porto , Porto , Portugal
| | - T Silva
- a CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences , University of Porto , Porto , Portugal
| | - D Magalhães e Silva
- a CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences , University of Porto , Porto , Portugal
| | - F Remião
- b UCIBIO-REQUIMTE, Laboratory of Toxicology, Department of Biological Sciences, Faculty of Pharmacy , University of Porto , Porto , Portugal
| | - F Borges
- a CIQUP/Department of Chemistry and Biochemistry, Faculty of Sciences , University of Porto , Porto , Portugal
| |
Collapse
|
10
|
Fekete S, Veuthey JL, Guillarme D. Comparison of the most recent chromatographic approaches applied for fast and high resolution separations: Theory and practice. J Chromatogr A 2015; 1408:1-14. [DOI: 10.1016/j.chroma.2015.07.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 06/30/2015] [Accepted: 07/03/2015] [Indexed: 10/23/2022]
|
11
|
Identification and simultaneous quantification of five alkaloids in Piper longum L. by HPLC–ESI-MSn and UFLC–ESI-MS/MS and their application to Piper nigrum L. Food Chem 2015; 177:191-6. [DOI: 10.1016/j.foodchem.2015.01.033] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2013] [Revised: 04/23/2014] [Accepted: 01/03/2015] [Indexed: 11/18/2022]
|
12
|
Negreira N, López de Alda M, Barceló D. Degradation of the cytostatic etoposide in chlorinated water by liquid chromatography coupled to quadrupole-Orbitrap mass spectrometry: identification and quantification of by-products in real water samples. THE SCIENCE OF THE TOTAL ENVIRONMENT 2015; 506-507:36-45. [PMID: 25460937 DOI: 10.1016/j.scitotenv.2014.10.097] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 10/26/2014] [Accepted: 10/27/2014] [Indexed: 05/04/2023]
Abstract
Once discharged into the sewage system, many pharmaceuticals may undergo degradation reactions in the presence of chemical disinfectants, generating by-products that may possess enhanced toxicity relative to the parent compounds. For this reason, the stability of the widely used cytostatic etoposide in chlorinated water has been investigated for the first time in the present work. Taking advantage of the high-resolution/accurate-mass capabilities of the hybrid quadrupole-Orbitrap mass spectrometer Q Exactive, two new oxidation by-products of etoposide were reliably identified. The time course of etoposide and its by-products was followed at different pH values, free chlorine concentrations and water matrices. Finally, the occurrence of etoposide and its major identified by-product (3'-O-desmethyl etoposide) was investigated in real water samples by on-line solid-phase extraction-liquid chromatography-tandem mass spectrometry using a 4000QTRAP hybrid quadrupole-linear ion trap mass spectrometer. The etoposide by-product was found in various river and wastewater samples at levels between 14 and 33 ng L(-1), whereas etoposide was not detected in any sample.
Collapse
Affiliation(s)
- Noelia Negreira
- Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain
| | - Miren López de Alda
- Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain.
| | - Damià Barceló
- Water and Soil Quality Research Group, Department of Environmental Chemistry, Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18-26, E-08034 Barcelona, Spain; Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, 17003 Girona, Spain
| |
Collapse
|
13
|
Abstract
Etoposide, a semi-synthetic derivative of podophyllotoxin, is one of the most active and useful antineoplastic agent used routinely in firstline combination chemotherapy of testicular cancer, small-cell lung cancer and non-Hodgkin's lymphoma. Etoposide displays narrow therapeutic index, erratic pharmacokinetics and dose individualization that needs to be achieved for overcoming inter- and intra-patient variability (25-80 percent), so as to maintain proper drug exposure within a therapeutic range. Etoposide possess high plasma protein binding (97 percent) and is degraded via complex metabolic pathways. The main pharmacokinetic determinants of etoposide are still not completely defined in order to optimize the pharmaco-therapeutic parameters including dose, therapeutic schedule and route of administration. Much research has been done to determine drug-drug and herb-drug interactions for improving the bioavailability of etoposide. The present article gives insight on pharmaceutical and pharmacological attempts made from time to time to overcome the erratic inter- and intra-patient variability for improving the bioavailability of etoposide.
Collapse
|
14
|
Pigatto MC, Mossmann DL, Dalla Costa T. HPLC-UV method for quantifying etoposide in plasma and tumor interstitial fluid by microdialysis: application to pharmacokinetic studies. Biomed Chromatogr 2014; 29:529-36. [DOI: 10.1002/bmc.3308] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 06/18/2014] [Accepted: 07/17/2014] [Indexed: 11/11/2022]
Affiliation(s)
- Maiara Cássia Pigatto
- Pharmaceutical Sciences Graduate Program; College of Pharmacy, Federal University of Rio Grande do Sul; Porto Alegre Brazil
- Centro Bioanalítico de Medicamentos; College of Pharmacy, Federal University of Rio Grande do Sul; Porto Alegre Brazil
| | - Daniele Lenz Mossmann
- Centro Bioanalítico de Medicamentos; College of Pharmacy, Federal University of Rio Grande do Sul; Porto Alegre Brazil
| | - Teresa Dalla Costa
- Pharmaceutical Sciences Graduate Program; College of Pharmacy, Federal University of Rio Grande do Sul; Porto Alegre Brazil
- Centro Bioanalítico de Medicamentos; College of Pharmacy, Federal University of Rio Grande do Sul; Porto Alegre Brazil
| |
Collapse
|
15
|
Saneja A, Khare V, Alam N, Dubey RD, Gupta PN. Advances in P-glycoprotein-based approaches for delivering anticancer drugs: pharmacokinetic perspective and clinical relevance. Expert Opin Drug Deliv 2013; 11:121-38. [DOI: 10.1517/17425247.2014.865014] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
16
|
Khajuria RK, Sharma N, Koul JL, Verma MK. Concentration dependent Electrospray Ionisation Mass Spectrometry and Tandem Mass Spectrometry (MS/MS ) studies on (E,E)-1-[5-(1,3-benzodioxol-5yl)-1-oxo-2,4-pentadienyl]- piperidine (Piperine) and its analogues. SPRINGERPLUS 2013; 2:427. [PMID: 24046811 PMCID: PMC3773103 DOI: 10.1186/2193-1801-2-427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/02/2013] [Accepted: 08/29/2013] [Indexed: 11/10/2022]
Abstract
Studies on piperine ((M 1 )) and its synthetic analogues (M 2-18 ) by positive electrospray ionisation mass spectrometry were carried out in the flow injection mode of analysis in methanol. The MS experiments on these compounds at concentration 5 ng/μL or above yielded dimeric ionic species [2 M + Na](+) which revealed that piperine and its analogues exhibit clustering of ions when the solutions of these compounds at concentrations 5 ng/μL or above were allowed to move through the electrospray interface of the mass spectrometer. The same clustering of the ions was not observed when the solutions of the same compounds at concentrations below 5 ng/μL were used for similar studies. The formation of the clusters was further confirmed by tandem mass spectrometry (MS/MS) studies wherein the fragmentation of dimeric ionic species [2 M + Na](+) led to the formation of sodium adducted monomeric ionic species [M + Na](+). The MS measurements of these compounds by Atmospheric Pressure Chemical Ionisation (APCI) were on expected lines as there was no clustering of the ions in case of APCI-MS measurements.
Collapse
Affiliation(s)
- Ravi K Khajuria
- />Analytical Chemistry Division (Instrumentation), CSIR- Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001 India
| | - Neha Sharma
- />Analytical Chemistry Division (Instrumentation), CSIR- Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001 India
| | - Jawahar L Koul
- />Analytical Chemistry Division (Instrumentation), CSIR- Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001 India
- />Bio-Organic Chemistry Division, CSIR- Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001 India
| | - Mahendra K Verma
- />Bio-Organic Chemistry Division, CSIR- Indian Institute of Integrative Medicine, Canal Road, Jammu, 180001 India
| |
Collapse
|
17
|
Liu H, Luo R, Chen X, Liu J, Bi Y, Zheng L, Wu X. Tissue distribution profiles of three antiparkinsonian alkaloids from Piper longum L. in rats determined by liquid chromatography–tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 928:78-82. [DOI: 10.1016/j.jchromb.2013.03.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 03/06/2013] [Accepted: 03/14/2013] [Indexed: 10/27/2022]
|
18
|
Analysis of alkaloids from different chemical groups by different liquid chromatography methods. OPEN CHEM 2012. [DOI: 10.2478/s11532-012-0037-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractAlkaloids are biologically active compounds widely used as pharmaceuticals and synthesised as secondary methabolites in plants. Many of these compounds are strongly toxic. Therefore, they are often subject of scientific interests and analysis. Since alkaloids — basic compounds appear in aqueous solutions as ionized and unionized forms, they are difficult for chromatographic separation for peak tailing, poor systems efficiency, poor separation and poor column-to-column reproducibility. For this reason it is necessity searching of more suitable chromatographic systems for analysis of the compounds. In this article we present an overview on the separation of selected alkaloids from different chemical groups by liquid chromatography thus indicating the range of useful methods now available for alkaloid analysis. Different selectivity, system efficiency and peaks shape may be achieved in different LC methods separations by use of alternative stationary phases: silica, alumina, chemically bonded stationary phases, cation exchange phases, or by varying nonaqueous or aqueous mobile phase (containing different modifier, different buffers at different pH, ion-pairing or silanol blocker reagents). Developments in TLC (NP and RP systems), HPLC (NP, RP, HILIC, ion-exchange) are presented and the advantages of each method for alkaloids analysis are discussed.
Collapse
|
19
|
Fast liquid chromatography: The domination of core?shell and very fine particles. J Chromatogr A 2012; 1228:57-71. [DOI: 10.1016/j.chroma.2011.09.050] [Citation(s) in RCA: 212] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 09/14/2011] [Accepted: 09/19/2011] [Indexed: 11/16/2022]
|
20
|
Akhtar N, Talegaonkar S, Khar RK, Jaggi M. A validated stability-indicating LC method for estimation of etoposide in bulk and optimized self-nano emulsifying formulation: Kinetics and stability effects. Saudi Pharm J 2012; 21:103-11. [PMID: 23960824 DOI: 10.1016/j.jsps.2012.01.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2011] [Accepted: 01/15/2012] [Indexed: 11/25/2022] Open
Abstract
The present investigation was aimed to establish a validated stability-indicating liquid chromatographic method for the estimation of etoposide (ETP) in bulk drug and self-nano emulsifying formulation. ETP was successfully separated from the degradation products formed under stress conditions on LiChrospher 100 C18 reverse-phase column (a 250 mm × 4.6 mm i.d., 5-μm particle size) using 55:45 (v/v) acetonitrile-phosphate buffer saline (pH 4.5) as the mobile phase, at a flow rate of 1.0 mL min(-1) and detection at 283 nm. The response was a linear function of analyte concentration (R(2) > 0.9997) over the concentration range of 0.05-50 μg mL(-1). The method was validated for precision, accuracy, robustness, sensitivity and specificity. The % recovery of ETP at three different levels (50%, 100% and 150%) ranged between 93.84% and 100.06% in optimized self-nano emulsifying formulation, Etosid® soft-gelatin capsule and Fytosid® injection. First-order degradation kinetics of ETP were observed under acidic and alkaline conditions. The method was also applied for the stability assessment of self-nano emulsifying formulation under accelerated conditions, the formulation was found to be stable at all storage conditions with the shelf-life of 2.37 years at 25 °C. The method holds promise for routine quality control of ETP in bulk, pharmaceutical formulations as well as in stability-indicating studies.
Collapse
Affiliation(s)
- Naseem Akhtar
- Formulation Research Laboratory, Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, New Delhi 110 062, India
| | | | | | | |
Collapse
|
21
|
Saadati R, Dadashzadeh S. SIMPLE AND EFFICIENT HPLC-UV QUANTITATION OF ETOPOSIDE AND ITS CIS-ISOMER IN RAT MICRO-VOLUME PLASMA AND TISSUE SAMPLES: APPLICATION TO PHARMACOKINETIC AND BIODISTRIBUTION STUDIES. J LIQ CHROMATOGR R T 2011. [DOI: 10.1080/10826076.2011.585483] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Affiliation(s)
- Roonak Saadati
- a Department of Pharmaceutics , School of Pharmacy, Shaheed Beheshti University of Medical Sciences , Tehran, Iran
| | - Simin Dadashzadeh
- a Department of Pharmaceutics , School of Pharmacy, Shaheed Beheshti University of Medical Sciences , Tehran, Iran
- b Pharmaceutical Sciences Research Center , Shaheed Beheshti University of Medical Sciences , Tehran, Iran
| |
Collapse
|
22
|
Liu J, Bi Y, Luo R, Wu X. Simultaneous UFLC-ESI-MS/MS determination of piperine and piperlonguminine in rat plasma after oral administration of alkaloids from Piper longum L.: application to pharmacokinetic studies in rats. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:2885-90. [PMID: 21903488 DOI: 10.1016/j.jchromb.2011.08.018] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Revised: 08/12/2011] [Accepted: 08/13/2011] [Indexed: 11/24/2022]
Abstract
The alkaloids from Piper longum L. showed protective effects on Parkinson's disease models in our previous study and piperine and piperlonguminine were the two main constituents in the alkaloids. The present study aimed at developing a rapid, sensitive, and accurate UFLC-ESI-MS/MS method and validating it for the simultaneous determination of piperine and piperlonguminine in rat plasma using terfenadine as the internal standard. The analytes and internal standard (IS) were extracted from rat plasma using a simple protein precipitation by adding methanol/acetonitrile (1:1, v/v). A Phenomenex Gemini 3 u C18 column (20 mm × 2.00 mm, 3 μm) was used to separate the analytes and IS using a gradient mode system with a mobile phase consisting of water with 0.1% formic acid (mobile phase A) and acetonitrile with 0.1% formic acid (mobile phase B) at a flow rate of 0.4 mL/min and an operating column temperature of 25°C. The total analytical run time was 4 min. The detection was performed using the positive ion electrospray ionization (ESI) in multiple reaction monitoring (MRM) mode with transitions at m/z 286.1-201.1 for piperine, m/z 274.0-201.1 for piperlonguminine, and m/z 472.4-436.4 for the IS. The calibration curves were both linear (r>0.995) over a concentration range of 1.0 to 1000 ng/mL; the lower limit of quantification (LLOQ) was 1.0 ng/mL for both piperine and piperlonguminine. The intra-day and inter-day precisions (RSD %) were <12.1%, accuracies ranged from 86.6 to 120%, and recoveries ranged from 90.4 to 108%. The analytes were proven stable in the short-term, long-term, and after three freeze-thaw cycles. The method was successfully applied to pharmacokinetic studies of piperine and piperlonguminine in rats after oral administration of alkaloids from P. longum L.
Collapse
Affiliation(s)
- Junhui Liu
- School of Traditional Chinese Medicine, Capital Medical University, 10 Youanmen, Xitoutiao, Beijing 100069, China
| | | | | | | |
Collapse
|
23
|
Analysis of anticancer drugs: a review. Talanta 2011; 85:2265-89. [PMID: 21962644 DOI: 10.1016/j.talanta.2011.08.034] [Citation(s) in RCA: 316] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 08/15/2011] [Accepted: 08/16/2011] [Indexed: 01/05/2023]
Abstract
In the last decades, the number of patients receiving chemotherapy has considerably increased. Given the toxicity of cytotoxic agents to humans (not only for patients but also for healthcare professionals), the development of reliable analytical methods to analyse these compounds became necessary. From the discovery of new substances to patient administration, all pharmaceutical fields are concerned with the analysis of cytotoxic drugs. In this review, the use of methods to analyse cytotoxic agents in various matrices, such as pharmaceutical formulations and biological and environmental samples, is discussed. Thus, an overview of reported analytical methods for the determination of the most commonly used anticancer drugs is given.
Collapse
|
24
|
Najar I, Sharma S, Singh G, Koul S, Gupta P, Javed S, Johri R. Involvement of P-glycoprotein and CYP 3A4 in the enhancement of etoposide bioavailability by a piperine analogue. Chem Biol Interact 2011; 190:84-90. [DOI: 10.1016/j.cbi.2011.02.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2010] [Revised: 02/07/2011] [Accepted: 02/09/2011] [Indexed: 10/18/2022]
|