Fig. 1
From: The role of nicotinic receptors in SARS-CoV-2 receptor ACE2 expression in intestinal epithelia

Stimulation parameters. a, Stimulation parameters of mouse VNS experiment: 650 μAmp, 10 Hz, pulse width 200 μs for 2 min 6 times daily for 12 days. b, Stimulation parameters of human VNS experiment: 1.25 mAmp, 10 Hz, pulse width 500 μs, 30 s ON and 5 min OFF for 12 months. VNS: vagus nerve stimulation