Figure 2From: Changes in the central component of the hypothalamus-pituitary-thyroid axis in a rabbit model of prolonged critical illnessFluorescence in situ hybridization staining for (a, a') TRH, and (b, b') D2 on frozen sections of the hypothalamus. (a, b) Healthy control vs. (a', b') prolonged ill animals. (a, a') Magnification × 5, (b, b') × 10. D2 = type II iodothyronine diodinase; PVN = paraventricular nucleus; TRH = thyrotropin releasing hormone. Arrows represent third ventricle.Back to article page