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单词 homovanillic acid
释义

homovanillic acid


homovanillic acid

[¦hä·mə·və¦nil·ik ′as·əd] (biochemistry) HOC6H3(OCH3)CH2CO2H A major metabolite of 3-O-methyl dopa; used in enzyme determination. Abbreviated HVA.

homovanillic acid


ho·mo·va·nil·lic ac·id (HVA),

(hō'mō-vă-nil'ik as'id), 4-Hydroxy-3-methoxyphenylacetic acid; a phenol found in human urine; produced through the methylation of homoprotocatechuic acid on the meta-OH group. It is the principal urinary metabolite of dopa and dopamine.

homovanillic acid

HVA Physiology A major dopamine metabolite used to synthesize epinephrine and norepinephrine and excreted in urine; HVA is usually measured with the major catecholamines and other catecholamine metabolites; HVA is ↑ in neuroblastoma and ganglioneuroma Ref range 0-15 mg/24 hr urine. See Hypertension, Pheochromocytoma.

ho·mo·va·nil·lic ac·id

(HVA) (hō'mō-vă-nil'ik as'id) A phenol found in human urine; produced through the methylation of homoprotocatechuic acid on the meta-OH group.

ho·mo·va·nil·lic ac·id

(HVA) (hō'mō-vă-nil'ik as'id) A phenol found in human urine.
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更新时间:2025/2/20 0:22:44