Abstract:-The addition of 92 or 136 mM mannitol to a modified saline solution that contained 1.25 mM Ca 2+ led to a mannitol concentration-dependent increase in the amount of calcium absorbed in 1 h from 8 cm long ileal loops prepared from fasted male Sprague-Dawley rats, with body weights of 190 ± 10 g. It is argued that this mannitol-enhanced movement of calcium out of the loop cannot have utilized the paracellular pathway, inasmuch as the luminal calcium concentration of the mannitol instillate decreased during the … Show more
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