Day-Night Patterns in Bronchial Patency and Dyspnea: Basis for Once-Daily and Unequally Divided Twice-Daily Theophylline Dosing Schedules
- 1 January 1987
- journal article
- research article
- Published by Taylor & Francis in Chronobiology International
- Vol. 4 (3), 303-317
- https://doi.org/10.3109/07420528709083521
Abstract
Asthma typically worsens overnight. Although 24-hr variation in environmental conditions may contribute to the worsening of dyspnea at night, this does not fully explain day-night patterns of this disease. Circadian (about 24-hr) rhythms in bioprocesses which influence airways patency constitute major contributory factors. The nighttime exacerbation of asthma may represent the influence of circadian bioperiodicities in bronchial patency, airways hyperreactivity to acetylcholine, histamine and house dust, and altered levels of several plasma constituents such as cortisol, epinephrine, histamine and cyclic AMP.This publication has 47 references indexed in Scilit:
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