PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 19926923-5 2009 Pyrroloquinoline quinone (PQQ), which increases in the production of nerve growth factor, and protects neurons, had a similar effect on cognitive function to that of vitamin E in the aged rats. PQQ Cofactor 0-24 nerve growth factor Rattus norvegicus 69-88 19926923-5 2009 Pyrroloquinoline quinone (PQQ), which increases in the production of nerve growth factor, and protects neurons, had a similar effect on cognitive function to that of vitamin E in the aged rats. PQQ Cofactor 26-29 nerve growth factor Rattus norvegicus 69-88