Figure 6.

Projections to MnPO/OVLT VGluT2 and VGAT neurons in brain regions involved in neuroendocrine response to dehydration. A–H, Glutamatergic and GABAergic MnPO/OVLT neurons innervate the subfornical organ (A, B) supraoptic nucleus (C, D), and paraventricular nucleus of the hypothalamus (E–H). Injection sites for each respective case are shown in Figure 1, G and H. Scale bar, 200 μm. opt, Optic tract; PaDC, paraventricular hypothalamic nucleus (dorsal cap); PaLM, paraventricular hypothalamic nucleus (lateral magnocellular); PaMM, paraventricular hypothalamic nucleus (medial magnocellular); PaMP, paraventricular hypothalamic nucleus (medial parvicellular); Pe, periventricular hypothalamic nucleus; Re, reuniens thalamic nucleus; SCh, suprachiasmatic nucleus.