GLP1R and asthma: Vara et al. also found GLP-1 RAs increase surfactant production in type II pneumocytes, a finding similar to a study by Romaní-Pérez et al., which showed that pregnant rats had a rise in surfactant production-post-delivery [10-11]. The evidence from basic science is in support of the positive findings by Foer et al., in their retrospective cohort study of patients with asthma who are on GLP-1 RAs.