PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16044631-7 2005 The beta2-adrenoceptor agonist clenbuterol has been shown to stimulate polyamine synthesis and by extension, might provide a margin of antioxidant protection through increasing HO-1 content. Polyamines 71-80 adrenoceptor beta 2 Homo sapiens 4-22 16044631-8 2005 However, it is unclear whether the polyamines are acting as a tertiary messengers for antioxidant protection in the be beta2-adrenoceptor signal transduction pathway. Polyamines 35-45 adrenoceptor beta 2 Homo sapiens 119-137