PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 25407160-10 2015 In addition, TUDCA decreased cellular senescence by reducing levels of p53, p21, and reactive oxygen species and increased nitric oxide. ursodoxicoltaurine 13-18 H3 histone pseudogene 16 Homo sapiens 76-79