Title : [Theophylline reduces serum levels of ECP in vitro].

Pub. Date : 1998 May

PMID : 9656574






15 Functional Relationships(s)
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Protein Name
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1 [Theophylline reduces serum levels of ECP in vitro]. Theophylline ribonuclease A family member 3 Homo sapiens
2 Measurement of serum levels of ECP has been widely used for monitoring airway inflammation in bronchial asthma and recently been applied to measure anti-inflammatory effect of theophylline. Theophylline ribonuclease A family member 3 Homo sapiens
3 However, reduced levels of ECP in theophylline-administered patients may express not only in vivo effect of theophylline but also in vitro effect after sampling because serum ECP measures released ECP during coagulation and theophylline has been reported to inhibit eosinophil degranulation in vitro. Theophylline ribonuclease A family member 3 Homo sapiens
4 However, reduced levels of ECP in theophylline-administered patients may express not only in vivo effect of theophylline but also in vitro effect after sampling because serum ECP measures released ECP during coagulation and theophylline has been reported to inhibit eosinophil degranulation in vitro. Theophylline ribonuclease A family member 3 Homo sapiens
5 However, reduced levels of ECP in theophylline-administered patients may express not only in vivo effect of theophylline but also in vitro effect after sampling because serum ECP measures released ECP during coagulation and theophylline has been reported to inhibit eosinophil degranulation in vitro. Theophylline ribonuclease A family member 3 Homo sapiens
6 However, reduced levels of ECP in theophylline-administered patients may express not only in vivo effect of theophylline but also in vitro effect after sampling because serum ECP measures released ECP during coagulation and theophylline has been reported to inhibit eosinophil degranulation in vitro. Theophylline ribonuclease A family member 3 Homo sapiens
7 However, reduced levels of ECP in theophylline-administered patients may express not only in vivo effect of theophylline but also in vitro effect after sampling because serum ECP measures released ECP during coagulation and theophylline has been reported to inhibit eosinophil degranulation in vitro. Theophylline ribonuclease A family member 3 Homo sapiens
8 In order to answer the question, we tested whether theophylline added to blood after sampling reduces measured levels of serum ECP. Theophylline ribonuclease A family member 3 Homo sapiens
9 Theophylline significantly reduced serum ECP in a concentration-dependent manner. Theophylline ribonuclease A family member 3 Homo sapiens
10 Percent reduction of ECP levels at 1 hour of incubation were 11.9%, 18.7%, 22.8%, and 51.7% at theophylline levels of 5, 12.5, 22.5, and 120 micrograms/ml, respectively. Theophylline ribonuclease A family member 3 Homo sapiens
11 Kinetics of serum ECP release was also inhibited in the presence of theophylline. Theophylline ribonuclease A family member 3 Homo sapiens
12 These results suggest that in vitro effect of theophylline on serum ECP levels should be considered when data of serum ECP in patients who take theophylline are interpreted. Theophylline ribonuclease A family member 3 Homo sapiens
13 These results suggest that in vitro effect of theophylline on serum ECP levels should be considered when data of serum ECP in patients who take theophylline are interpreted. Theophylline ribonuclease A family member 3 Homo sapiens
14 These results suggest that in vitro effect of theophylline on serum ECP levels should be considered when data of serum ECP in patients who take theophylline are interpreted. Theophylline ribonuclease A family member 3 Homo sapiens
15 These results suggest that in vitro effect of theophylline on serum ECP levels should be considered when data of serum ECP in patients who take theophylline are interpreted. Theophylline ribonuclease A family member 3 Homo sapiens