PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 1005491-9 1976 This discrepancy may be explained by high doses of L-DOPA causing inhibiton of catechol-O-methyl transferase (COMT), which is suggested by the observation that the forebrain homovanillic acid (HVA): 3,4-dihydroxyphenylacetic acid (DOPAC) ratio was significantly lower after the high dose of L-DOPA than in untreated mice. 3,4-Dihydroxyphenylacetic Acid 199-229 catechol-O-methyltransferase Mus musculus 79-108 11849292-7 2002 In contrast, when COMT-deficient mice are challenged with l-dihydroxyphenylalanine, they show an extensive accumulation of 3,4-dihydroxyphenylacetic acid and dihydroxyphenylglycol and even dopamine, revealing an important role for COMT under such situations. 3,4-Dihydroxyphenylacetic Acid 123-153 catechol-O-methyltransferase Mus musculus 18-22 1005491-9 1976 This discrepancy may be explained by high doses of L-DOPA causing inhibiton of catechol-O-methyl transferase (COMT), which is suggested by the observation that the forebrain homovanillic acid (HVA): 3,4-dihydroxyphenylacetic acid (DOPAC) ratio was significantly lower after the high dose of L-DOPA than in untreated mice. 3,4-Dihydroxyphenylacetic Acid 199-229 catechol-O-methyltransferase Mus musculus 110-114 1005491-9 1976 This discrepancy may be explained by high doses of L-DOPA causing inhibiton of catechol-O-methyl transferase (COMT), which is suggested by the observation that the forebrain homovanillic acid (HVA): 3,4-dihydroxyphenylacetic acid (DOPAC) ratio was significantly lower after the high dose of L-DOPA than in untreated mice. 3,4-Dihydroxyphenylacetic Acid 231-236 catechol-O-methyltransferase Mus musculus 79-108 1005491-9 1976 This discrepancy may be explained by high doses of L-DOPA causing inhibiton of catechol-O-methyl transferase (COMT), which is suggested by the observation that the forebrain homovanillic acid (HVA): 3,4-dihydroxyphenylacetic acid (DOPAC) ratio was significantly lower after the high dose of L-DOPA than in untreated mice. 3,4-Dihydroxyphenylacetic Acid 231-236 catechol-O-methyltransferase Mus musculus 110-114 20617305-12 2010 CONCLUSION: A lack of S-COMT has a notable, albeit small, brain-area and sex-dependent effect on the O-methylation of dopamine and 3,4-dihydroxyphenylacetic acid in the mouse brain. 3,4-Dihydroxyphenylacetic Acid 131-161 catechol-O-methyltransferase Mus musculus 24-28 5560896-3 1971 After drug treatments which normally increase the concentration of HVA several-fold, inhibition of catechol-O-methyltransferase (COMT) by tropolone greatly reduced the concentration of HVA but resulted in only a small increase in the concentration of DOPAC in the striatum of the mouse.3. 3,4-Dihydroxyphenylacetic Acid 251-256 catechol-O-methyltransferase Mus musculus 129-133 22414866-9 2012 Taken together these results suggest that inhibition of the DA metabolizing enzymes monoamine oxidase A (MAO) or catechol-O-methyl transferase (COMT) may take place at lower doses of MPTP treatment; conversely, higher doses of MPTP may cause decreases in DA, DOPAC and HVA through another mechanism. 3,4-Dihydroxyphenylacetic Acid 259-264 catechol-O-methyltransferase Mus musculus 113-142 22414866-9 2012 Taken together these results suggest that inhibition of the DA metabolizing enzymes monoamine oxidase A (MAO) or catechol-O-methyl transferase (COMT) may take place at lower doses of MPTP treatment; conversely, higher doses of MPTP may cause decreases in DA, DOPAC and HVA through another mechanism. 3,4-Dihydroxyphenylacetic Acid 259-264 catechol-O-methyltransferase Mus musculus 144-148