alexa Abstract | Determination of site of absorption of propranolol in rat gut using In situ single-pass intestinal perfusion

Indian Journal of Pharmaceutical Sciences
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Previously, permeability and site of intestinal absorption of propranolol have been reported using the Ussing chamber. In the present study, the utility of Single-Pass Intestinal Perfusion to study permeability and site of intestinal absorption of propranolol was evaluated in rats. Drug permeability in different regions of rat intestine viz. duodenum, jejunum, ileum and colon was measured. Propranolol (30 μg/ml) solution was perfused in situ in each intestinal segment of rats. Effective permeability (Peff) of propranolol in each segment was calculated and site of absorption was determined. The Peff of propranolol in rat duodenum, jejunum, ileum and colon was calculated to be 0.3316Χ10 -4 cm/s, 0.4035Χ10 -4 cm/s, 0.5092Χ10 -4 cm/s and 0.7167Χ10 -4 cm/s, respectively. The above results suggest that permeability of propranolol was highest through colon compared to other intestinal sites, which is in close agreement to that reported previously. In conclusion, in situ single pass intestinal perfusion can be used effectively to study intestinal permeability as well as site of intestinal absorption of compounds in rats.

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Author(s): N Nagare Anagha Damre KS Singh SR Mallurwar Seethalakshmi Iyer A Naik Meena Chintamaneni


Intestine, permeability, propranolol, single-pass intestinal perfusion, site of absorption

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