AGT and Hypertension: While finding that inflammation influenced blood pressure, they also showed that hypertension, which was achieved via systemic infusion of angiotensin II (Ang II), was capable of producing increases in microglial density, soma enlargement, and reductions in microglial process length, as well as greater production of pro-inflammatory cytokines (IL-1β, IL-6, and TNF-α) in this brain region [16–18].