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Sharma PK, Avula B, Panda A, Wang YH, Khan IA, Murthy SN. A sensitive bioanalytical method for quantitative determination of resiniferatoxin in rat plasma using ultra-high performance liquid chromatography coupled to tandem mass spectrometry and its application in pharmacokinetic study. J Pharm Biomed Anal 2019; 165:284-291. [PMID: 30576973 DOI: 10.1016/j.jpba.2018.12.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 11/15/2018] [Accepted: 12/14/2018] [Indexed: 10/27/2022]
Abstract
Resiniferatoxin (RTX) is a daphnane diterpene isolated from the latex of Euphorbia resinifera O. Berg, a potent activator of transient receptor potential vanilloid 1 (TrpV1), with a potency 103-105 times greater than pure capsaicin. Intravenous administration of RTX at very low concentration improves urodynamic parameters in patients with neurogenic detrusor overactivity and also reduces bladder pain in patients. Herein, a simple, rapid, selective and sensitive method for determination of RTX with silydianin as an internal standard was developed using ultra-high performance liquid chromatography coupled to tandem mass spectrometry with electrospray ionization source (UHPLC-ESI-MS/MS) in multiple reaction monitoring mode. The mass spectrometer was operated in positive electrospray ionization ((+) ESI) mode. Multiple reaction monitoring (MRM) mode was performed with ion pairs of m/z: 629.23→283.2 for RTX and 483.24→153.1 for IS. The limit of detection achieved in this method for RTX was 0.05 ng/mL and had good linearity in calibration range of 0.2-50 ng/mL ( r2 = 0.99). Precision and accuracy values were found to be < 15% (within acceptable limit), extraction recovery (≥ 88.2%), matrix effect (≥ 89.7%) and stability were in accordance with the bioanalytical guidelines. The sensitivity of this bio-analytical method supported the successful pharmacokinetic evaluation of RTX on rat plasma (2.5 μg/kg dose; i.v.) and has demonstrated pharmacokinetic parameters Vd and AUC0-∞ as 191.0 ± 71.31 mL/kg and 981.6 ± 137.40 min*ng/mL, respectively. The clearance was found to be 2.6 ± 0.38 mL/min/kg and half-life was 53.6 ± 23.51 min. This efficient, rapid and reliable method promises the quantification at low concentration of RTX, allowing determination of the pharmacokinetic profile, which is essential in future drug delivery and clinical application.
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Affiliation(s)
- Purnendu K Sharma
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA
| | - Bharathi Avula
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS, 38677, USA
| | - Apoorva Panda
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA
| | - Yan-Hong Wang
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS, 38677, USA
| | - Ikhlas A Khan
- National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, The University of Mississippi, University, MS, 38677, USA
| | - S Narasimha Murthy
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, University, MS, 38677, USA; Institute for Drug Delivery & Biomedical Research, Bangalore, India.
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Shukla M, Francis FM, Lal J. Liquid chromatography-tandem mass spectrometry method for the quantification of a potent H 3 receptor antagonist conessine in serum and its application to pharmacokinetic studies. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2018; 24:289-298. [PMID: 29554815 DOI: 10.1177/1469066718756226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Conessine, a steroidal alkaloid obtained from the bark and seeds of the plant species of Apocynaceae family, elicits a histamine antagonistic action, selectively for the H3 histaminergic receptors. This alkaloid is used mainly for the treatment of dysentery and helminthic disorders. For the quantification of conessine in serum, a liquid chromatography-tandem mass spectrometry method was developed. Chromatographic separation was achieved on a Zorbax SB-CN column (100 × 4.6 mm, 3.5 µm), and a mobile phase consisting of 90% methanol in aqueous ammonium acetate buffer (pH 3.5) with 0.1% (v/v) formic acid at an isocratic flow rate of 0.6 ml/min at 40℃ provides efficiency in separation. A volume of 40 µl was injected each time and the run time for each sample was 5 min. Phenacetin (internal standard) was added to 50 µl of serum sample prior to liquid-liquid extraction using 3% isopropanol in n-hexane. The detection was performed on a 5500 QTRAP mass spectrometer by multiple reaction monitoring mode via electrospray ionization source. The multiple reaction monitoring of conessine and IS was m/ z 357.4 to m/ z 312.1 and m/ z 180.1 to m/ z 138.1, respectively. The method that showed selectivity and linearity in the range of 1-200 ng/ml was validated in terms of sensitivity, accuracy, precision and stability. The detection and quantitation limits were recognized at 0.1 and 1 ng/ml, respectively. The intra- and inter-day precision and accuracy fulfils the acceptance criteria. Applying the method to the pharmacokinetic studies in rats, conessine showed a peak serum concentration at 2 h post oral dose with a good bioavailability of 71.28 ± 4.65%.
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Affiliation(s)
- Mahendra Shukla
- 1 Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Lucknow, India
- 2 Academy of Scientific and Innovative Research, Mathura Road, New Delhi, India
| | - Femi M Francis
- 1 Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Lucknow, India
- 3 Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Raebareli, India
| | - Jawahar Lal
- 1 Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Lucknow, India
- 2 Academy of Scientific and Innovative Research, Mathura Road, New Delhi, India
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Sharma A, Jaiswal S, Shukla M, Lal J. Effect of arteether and pyrimethamine coadministration on the pharmacokinetic and pharmacodynamic profile of ormeloxifene. Naunyn Schmiedebergs Arch Pharmacol 2017; 390:971-976. [PMID: 28689253 DOI: 10.1007/s00210-017-1401-4] [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: 04/24/2017] [Accepted: 06/28/2017] [Indexed: 11/30/2022]
Abstract
The study was intended to investigate the effect of concomitant administration of antimalarial drug (pyrimethamine or arteether) on pharmacokinetic and post coitus contraceptive efficacy of ormeloxifene in female Sprague-Dawley rats. A serial sampling technique coupled with LC-MS/MS detection was utilized for quantification of ormeloxifene in plasma samples collected from female rats treated with ormeloxifene only and ormeloxifene with pyrimethamine or arteether. Coitus-proven female rats were utilized to investigate the effect of pyrimethamine or arteether coadministration on contraceptive efficacy of ormeloxifene by investigating the presence or absence of implantations and status of corpora lutea on day 10 post coitum. None of the sperm-positive rats treated with ormeloxifene with or without coadministration of pyrimethamine or arteether showed any sign of pregnancy, confirming that concomitant administration of antimalarial drugs (pyrimethamine or arteether) did not affect the pharmacodynamic profile of ormeloxifene. Although there was no sign of pharmacodynamic interaction, the volume of distribution of ormeloxifene increased significantly on cotreatment with pyrimethamine. However, coadministration of arteether did not affect any of the pharmacokinetic parameters of ormeloxifene. The compiled results of preliminary study in female rats support that pyrimethamine or arteether can be prescribed with ormeloxifene.
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Affiliation(s)
- Abhisheak Sharma
- Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110025, India.,Department of Pharmaceutics, University of Florida, Gainesville, FL, 32610, USA
| | - Swati Jaiswal
- Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110025, India
| | - Mahendra Shukla
- Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110025, India
| | - Jawahar Lal
- Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Jankipuram Extension, Sitapur Road, Lucknow, 226031, India. .,Academy of Scientific and Innovative Research, New Delhi, 110025, India.
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Agrawal S, Ahmad H, Dwivedi M, Shukla M, Arya A, Sharma K, Lal J, Dwivedi AK. PEGylated chitosan nanoparticles potentiate repurposing of ormeloxifene in breast cancer therapy. Nanomedicine (Lond) 2016; 11:2147-69. [DOI: 10.2217/nnm-2016-0095] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Aim: Development and optimization of ormeloxifene-loaded PEGylated chitosan nanoparticles (CNPs) for enhancing its literature profound therapeutic activity against breast cancer. Methods: CNPs were prepared by ionotropic gelation method and characterized. Results: Optimized formulation (CNPs10) had average 304 nm particle size with 0.247 polydispersity index and spherical shape with +31 mV surface charge. CNPs10 had 88.37% entrapment efficiency and 20.93% loading efficiency. CNPs10 demonstrated dose-dependent enhancement in cytotoxicity, cellular uptake, apoptosis, disruption of mitochondrial membrane potential and activation of caspase-3 in breast cancer MDA-MB-231 and MCF-7 cells over free ormeloxifene. In vivo studies divulged improved pharmacokinetic parameters, reduced toxicity, suppressed tumor burden and increased survival in CNPs10-treated female Sprague–Dawley rats. Conclusion: PEGylated CNPs enhanced anticancer activity of ormeloxifene.
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Affiliation(s)
- Satish Agrawal
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Hafsa Ahmad
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Monika Dwivedi
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Mahendra Shukla
- Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Abhishek Arya
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Komal Sharma
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Jawahar Lal
- Pharmacokinetics & Metabolism Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
| | - Anil Kumar Dwivedi
- Pharmaceutics Division, CSIR-Central Drug Research Institute, Lucknow 226031, UP, India
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