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. 2021 May 28;12:653045. doi: 10.3389/fphys.2021.653045

FIGURE 2.

FIGURE 2

Angiotensin II levels increase amongst patients with a history of COVID-19. Blood serum samples from healthy (CoV–), COVID-19 positive (CoV+), and COVID-19 recovered (CoV Rec)subjects were obtained and Angiotensin II (AngII) levels were quantitatively measured. The obtained results were plotted based on serum levels in (A) CoV–, CoV+, and CoV Rec subjects and (B) CoV- and COVID-19 (positive and recovered) patients with and without a smoking history. Data are shown as mean ± SEM. p < 0.05, ∗∗p < 0.01, and ∗∗∗p < 0.001 as per One-Way ANOVA for multiple comparisons. NS, Non-Smokers and Sm: Smokers.