PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11311236-6 2001 These results suggested that catecholamines up-regulate UCP2 and UCP3 expression through direct action on the beta2-AR in skeletal muscle. Catecholamines 29-43 adrenoceptor beta 2 Homo sapiens 110-118