Increased urinary excretion of the histamine metabolite Nι-methylhistamine during acetylsalicylic acid provocation in chronic urticaria patients

1990 ◽  
Vol 30 (1-2) ◽  
pp. 254-257 ◽  
Author(s):  
E. Oosting ◽  
S. H. Kardaun ◽  
H. M. G. Doeglas ◽  
P. Los ◽  
J. G. R. Monchy
1972 ◽  
Vol 50 (8) ◽  
pp. 809-816 ◽  
Author(s):  
M. Henry Gault ◽  
Nasrollah T. Shahidi ◽  
Alec Gabe

The urinary excretion of total N-acetyl-p-aminophenol and conjugates (NAPA) and total 2-hydroxyphenetidin and conjugates (2-OHP) was studied after ingestion of 2 g phenacetin alone and also in combination with acetylsalicylic acid, caffeine, and codeine (APC and C). NAPA excretion was measured in 17 patients; seven had taken the combination analgesic preparation in large amounts for 5 or more years and 11 had values for creatinine clearance of < 50 ml/min. NAPA excretion was measured for 96 h after drug ingestion and 2-OHP for at least 24 h in 15 patients of the same group. Excretion of total NAPA and 2-OHP was significantly reduced when phenacetin was ingested as APC and C compared with excretion when phenacetin was given alone. In the presence of renal failure NAPA excretion was merely delayed, whereas 2-OHP excretion was reduced or absent.


1979 ◽  
Vol 7 (1) ◽  
pp. 61-68 ◽  
Author(s):  
P Schulz ◽  
C V Perrier ◽  
F Ferber-Perret ◽  
W J A VandenHeuvel ◽  
S L Steelman

Intermittent and concomitant acetylsalicylic acid (ASA) therapy was superimposed onto a 21-day regimen with diflunisal 250 mg b.i.d. Low doses of ASA (600 mg single dose or 300 mg q.i.d.) did not influence significantly diflunisal blood levels whereas a 600 mg q.i.d. dosing caused a small significant drop, especially at trough level. This drop is not expected to be clinically significant. No ototoxicity could be demonstrated with any treatment of diflunisal though four of fourteen subjects reported mild tinnitus during concomitant therapy at the higher doses of ASA. Diflunisal at 375 mg b.i.d. failed to alter the metabolism of a single dose of labelled ASA (600 mg) as judged by plasma levels, urinary excretion and plasma binding. Daily urinary excretion of prostaglandins E1 and E2 major metabolite was decreased by about 70% by diflunisal.


The Lancet ◽  
1951 ◽  
Vol 257 (6658) ◽  
pp. 771-773 ◽  
Author(s):  
H. Van Cauwenberge ◽  
C. Heusghem

1973 ◽  
Vol 45 (2) ◽  
pp. 193-198
Author(s):  
Hazel Thom ◽  
Joyce E. Richardson ◽  
R. G. Mitchell

1. The excretion of 1-methylimidazole-4-acetic acid (MeIAA) in urine was measured in three groups of asthmatic children (acute-symptoms, quiescent and steroid-treated) and a control group of hospitalized non-asthmatic children all on the same restricted diet. 2. There was no statistical difference between the excretion of MeIAA in urine in any of the groups. There was therefore no evidence of impairment of the methylation pathway of histamine metabolism in asthma.


2003 ◽  
Vol 6 (17) ◽  
pp. 1490-1493
Author(s):  
Kouser Fatima ◽  
Haq Nawaz Bhatti . ◽  
Bushra Majeed .

Nature ◽  
1966 ◽  
Vol 209 (5023) ◽  
pp. 620-621 ◽  
Author(s):  
A. J. CUMMINGS ◽  
M. L. KING

Allergy ◽  
2009 ◽  
Vol 64 (2) ◽  
pp. 213-221 ◽  
Author(s):  
S.-H. Kim ◽  
Y.-M. Kang ◽  
S.-H. Kim ◽  
B.-Y. Cho ◽  
Y.-M. Ye ◽  
...  

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