Immunohistochemical Localization of AT_1a, AT_1b, and AT₂ Angiotensin II Receptor Subtypes in the Rat Adrenal, Pituitary, and Brain with a Perspective Commentary

Figure 5

Immunofluorescent localization of AT receptors in various brain nuclei. Top row: hypothalamic paraventricular nucleus (PVN, 160x) AT_1a,AT_1b, and AT₂. Second row: immunofluorescence labeling (left to right) for AT₂ in supraoptic nucleus (SON; 120x) and median preoptic nucleus (MnPO-dorsal part: 80x), and AT_1a localization labeling of arcuate nucleus (ARC; 160x). Third row, (left to right): AT₂ in the periventricular nucleus of the thalamus (PVT; 160x), AT_1a receptor in the rostral ventrolateral medulla (RVLM, 100x), and AT₂ receptor in nucleus of the solitary tract (NTS; 160x). Bottom row (left to right): AT_1a in frontal parietal cortex (160x), AT₂ in entorhinal cortex (80x), and AT₂ in hippocampus CA1 (120x).

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