PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34368536-6 2021 To evaluate calcification progress, calcium and collagen deposits along with the expression of protein markers, including the rate-limiting enzyme of serotonin synthesis (tryptophan hydroxylase 1 (TPH1)), were assessed. Serotonin 150-159 tryptophan hydroxylase 1 Homo sapiens 197-201