Freece JA, Van Bebber JE, Zierath DK, and Fitts DA. Subfornical organ disconnection alters Fos expression in the lamina terminalis, supraoptic nucleus, and area postrema after intragastric hypertonic NaCl. Am J Physiol Regul Integr Comp Physiol 288: R947–R955, 2005. First published December 2, 2004; doi: 10.1152/ajpregu.00570.2004; http://ajpregu.physiology.org/cgi/content/full/288/4/R947.
The dose of NaCl delivered intragastrically to rats was stated incorrectly. The actual dose was 1.5 M NaCl at 10 ml/kg (not 5 ml/kg as reported).
The fourth paragraph of discussion (p. R953) should be
“Fos-ir. In our group's previous study (26), we examined the effects of a mild load of salt (0.6 M NaCl at 0.5% of body weight) on Fos-ir in the brains of knife-cut and sham-cut rats. Although the knife cuts did affect the expression of Fos in the hypothalamic nuclei, very little if any Fos-ir was observed in the main body of SFO or in the OVLT. Thus we can deduce that a knife cut alone is not responsible for increasing Fos-ir in the lamina terminalis as observed in the present study. We increased the dose of NaCl in the present study to 1.5 M NaCl at 1% of body weight in an effort to generate more Fos-ir in the SFO and OVLT, and this effort was not entirely successful in the sham-cut rats (see Fig. 3). Fortunately, the increased Fos-ir in the circumventricular organs of knife-cut rats made that effort unnecessary.”
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