PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 21169404-5 2011 Mthfr deficiency was also associated with increased ROS production and reduced nitric oxide (NO) generation in Mthfr(+/-) EPCs. Reactive Oxygen Species 52-55 methylenetetrahydrofolate reductase Mus musculus 0-5