In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

[EX Q]:  We prospectively studied serum prolactin ( PRL ) elevation after different types of documented seizures in 17 patients .
[EX A]: serum prolactin

[EX Q]:  We have utilized transient transfections , mutation analysis , electromobility gel - shifts , and immunoblot analysis to test the hypothesis that expression of the CTalpha gene is controlled in part by the binding of three trans - acting nuclear factors , Sp1 , Sp2 , and Sp3 .
[EX A]: CTalpha gene

[EX Q]:  Before and 6 and 12 months after H . pylori eradication the patients were evaluated for fasting gastrinemia and pepsinogen I , basal and peak acid output , and detailed histological assessment including the ECL cell proliferative patterns .
[EX A]:
pepsinogen I