PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27170124-5 2016 Pretreatment with aminolevulinic acid or with protoporphyrin IX dramatically increased the light sensitivity of both TRPA1 and TRPV1 via generation of reactive oxygen species. protoporphyrin IX 46-63 transient receptor potential cation channel subfamily V member 1 Homo sapiens 127-132