alexa Study of Pharmacokinetics and Tissue Distribution of BITS-17 in Rat Plasma and Tissue Homogenate Using a Validated LC Method
ISSN: 1948-593X

Journal of Bioanalysis & Biomedicine
Open Access

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Research Article

Study of Pharmacokinetics and Tissue Distribution of BITS-17 in Rat Plasma and Tissue Homogenate Using a Validated LC Method

Addepalli Venkata Ramani*, Vadlamani Lakshmi Indira, SatyaVani, Sandeep Gill, Perumal Yogeeswari and Dharmarajan Sriram

Medicinal Chemistry & Tuberculosis Research Laboratory, Department of Pharmacy, Birla Institute of Technology & Science - Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad-500078, India

Corresponding Author:
Addepalli Venkata Ramani
Medicinal Chemistry & Tuberculosis Research Laboratory
Department of Pharmacy
Birla Institute of Technology & Science - Pilani
Hyderabad Campus, Jawahar Nagar
Hyderabad-500078, India
E-mail: [email protected]

Received date: July 24, 2012; Accepted date: September 12, 2012; Published date: September 16, 2012

Citation: Ramani AV, Indira VL, SatyaVani, Gill S, Yogeeswari P, et al. (2012) Study of Pharmacokinetics and Tissue Distribution of BITS-17 in Rat Plasma and Tissue Homogenate Using a Validated LC Method. J Bioanal Biomed 4:079-084. doi:10.4172/1948-593X.1000067

Copyright: © 2012 Ramani AV, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Accurate, simple, sensitive, reproducible and specific liquid chromatographic method has been developed for
estimation of BITS-17 in rat plasma and other biological tissues using β-naphthol as an internal standard (IS). The applicability of the validated method was tested to estimate the concentrations of BITS-17 (a novel anti tubercular agent) in plasma and tissues that were harvested in a rat tissue distribution study. A liquid - liquid extraction technique was used to extract BITS-17 and internal standard from the plasma and various tissue homogenates. The main pharmacokinetic parameters obtained after intravenous administration were t½=14 ± 0.20 h, Kel=0.62 ± 0.10 h-1, mean plasma clearance=1.35 ± 0.16 mg/h and mean volume of distribution = 1.99 ± 0.49L. The systemic absorption was tested with two formulations was slow after oral administration and maximum bioavailability was 33.02%. The peak plasma concentration of both the formulations was found to be 1.31 ± 0.06 and 1.0 ± 0.12 mg/mL, respectively, which was much above the levels of minimum inhibitory concentrations of BITS-17. The concentrations of BITS-17 were found in various tissues but the levels in lung and brain signifies a good therapeutic target.

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