TH immunoreactivity in the diabetic NTS shows a tendency to decrease, but it does not differ significantly from the control.

<p>The series of pictures represents the levels III and V. Boxed areas are reproduced in the right columns at higher magnification. Note that big-sized TH- cells are present at higher levels of the NTS and the surrounding area, whereas smaller TH-positive cells are scattered in the whole area of the most caudal NTS. Scale bar = 400 µ in the column A; = 150 µm in the column B.