Mechanism and potential treatments for gastrointestinal dysfunction in patients with COVID-19

Figure 2 Angiotensin-converting enzyme 2 expression in human gastrointestinal tissues. A: Angiotensin-converting enzyme 2 (ACE) expression in females; B: ACE expression in males, darker colors indicate higher expression levels; C: ACE2 mRNA and protein expression in the respiratory system and digestive system; D: ACE2 positive cell types in the stomach, colon, duodenum, rectum, and small intestine. These data are summarized from the human protein atlas https://www.proteinatlas.org/. N/A: Not applicable.