Thromboxane biosynthesis in allergen-induced bronchospasm. Evidence for platelet activation.
Thromboxane biosynthesis in allergen-induced bronchospasm. Evidence for platelet activation.
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过敏原诱导的支气管痉挛中的血栓素生物合成。
DOI:
10.1164/ajrccm/140.4.932
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发表时间:
1989
期刊:
影响因子:
--
通讯作者:
Fitzgerald,GA
中科院分区:
文献类型:
--
作者:
Lupinetti,MD;Sheller,JR;Catella,F;Fitzgerald,GA
To determine if platelet activation occurs after allergen inhalation in atopic asthmatics, we measured two urinary metabolites of the principal cyclooxygenase product of platelets, thromboxane A2(TxA2), using the sensitive and specific technique of gas chromatography-negative ion, chemical ionization-mass spectrometry. Seven atopic asthmatics underwent allergen challenge after low dose aspirin to suppress platelet thromboxane generation and on placebo days. On placebo days, the urinary levels of 2,3-dinor-TxB2increased from 76 ± 22 pg/mg creatinine to 216 ± 95 after allergen, and 11-dehydro-TxB2from 396 ± 98 to 627 ± 137 (p < 0.05). Low dose aspirin suppressed excretion of urinary thromboxane metabolites and prevented the rise after allergen inhalation without altering the bronchoconstriction. Excretion of 2,3-dinor-6-keto-PGF1α, a metabolite of prostacy-clin, was unaltered by this aspirin regimen. We conclude that platelets are activated after allergen challenge, but that platelet-derived TxA2is not important in the early bronchoconstrictor response.
影响因子:
--
作者:
F. Fitzpatrick;Robert R. Gorman;J. C. M. Guire;Robert C. Kelly;M. Wynalda;F. F. Sun
通讯作者:
F. F. Sun
DOI:
--
发表时间:
1975
期刊:
The Lancet
影响因子:
--
作者:
Alwyn Smith;I. Leck
通讯作者:
I. Leck
DOI:
10.1152/ajpcell.1988.254.2.c310
发表时间:
1988
期刊:
The American journal of physiology
影响因子:
--
作者:
Sato,K;Sato,F
通讯作者:
Sato,F