Title : In vivo and in vitro inhibition of human histidine decarboxylase by (S)-alpha-fluoromethylhistidine.

Pub. Date : 1985 Oct 1

PMID : 4052095






10 Functional Relationships(s)
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1 In vivo and in vitro inhibition of human histidine decarboxylase by (S)-alpha-fluoromethylhistidine. alpha-fluoromethylhistidine histidine decarboxylase Homo sapiens
2 Histidine decarboxylase (HDC) activity in Ficoll-Hypaque purified human peripheral blood leukocytes (PBL) was determined by measuring the formation of [3H]histamine from L-[3H]histidine. Histamine histidine decarboxylase Homo sapiens
3 Histidine decarboxylase (HDC) activity in Ficoll-Hypaque purified human peripheral blood leukocytes (PBL) was determined by measuring the formation of [3H]histamine from L-[3H]histidine. Histamine histidine decarboxylase Homo sapiens
4 Histidine decarboxylase (HDC) activity in Ficoll-Hypaque purified human peripheral blood leukocytes (PBL) was determined by measuring the formation of [3H]histamine from L-[3H]histidine. l-[3h]histidine histidine decarboxylase Homo sapiens
5 Histidine decarboxylase (HDC) activity in Ficoll-Hypaque purified human peripheral blood leukocytes (PBL) was determined by measuring the formation of [3H]histamine from L-[3H]histidine. l-[3h]histidine histidine decarboxylase Homo sapiens
6 HDC activity was inhibited in vitro to more than 90% by (S)-alpha-fluoromethylhistidine (alpha-FMH) at concentrations of 10(-5) M and above. alpha-fluoromethylhistidine histidine decarboxylase Homo sapiens
7 HDC activity was inhibited in vitro to more than 90% by (S)-alpha-fluoromethylhistidine (alpha-FMH) at concentrations of 10(-5) M and above. alpha-fluoromethylhistidine histidine decarboxylase Homo sapiens
8 A dose-dependent inhibition of HDC activity was observed in PBL that were isolated both at 12 hr after administration of the first dose of alpha-FMH and after treatment for 1 week. alpha-fluoromethylhistidine histidine decarboxylase Homo sapiens
9 At the 50 and 100 mg doses of alpha-FMH, there was complete inhibition of HDC activity and partial inhibition at the 10 mg dose. alpha-fluoromethylhistidine histidine decarboxylase Homo sapiens
10 Twenty-four hours after the last dose, HDC activity had recovered to 64-100%, 44-46%, and 30-52% of control values in subjects that received 10, 50 and 100 mg alpha-FMH respectively. alpha-fluoromethylhistidine histidine decarboxylase Homo sapiens