Figure 6.

Index of arginine vasopressin (AVP) labeling after immunohistochemistry (A,C) and in situ hybridization for AVP mRNA (B,D) in magnocellular neurons of the supraoptic nucleus (SON; A,B) and paraventricular nucleus (PVN; C,D) of patients who died from septic shock or from non‐septic causes. Box plots show median (interquartile). In septic shock patients, AVP protein expression was significantly lower in the SON and was increased, albeit not significantly, in the PVN. In both nuclei, AVP mRNA did not differ between the two groups.