title: [Urine cardiac specific microRNA-1 level in patients with ST segment elevation acute myocardial infarction].
abstract: OBJECTIVE
  To observe the change of urine level of cardiac specific microRNA-1 (miR-1) in patients with ST segment elevation acute myocardial infarction (STEAMI) and investigate its potential applications.
  
  
  METHODS
  Urine samples were collected from 20 STEAMI patients within 12 hours after STEAMI and from 20 healthy volunteers as control. Urine miR-1 concentrations were measured with real-time quantity reverse transcription-polymerase chain reaction (qRT-PCR), at the same time serum cardiac troponin I (cTnI) and MB isoenzyme of creatine kinase (CK-MB) concentrations were measured.
  
  
  RESULTS
  Serum level of cTnI, CK-MB and urine level of miR-1 in STEAMI patients were obviously higher than those in healthy control group [cTnI in blood: 19.27±7.53 μg/L vs. 0.02±0.01 μg/L, CK-MB in blood: 93.82±12.30 μg/L vs. 0.86±0.63 μg/L, miR-1 in urine (Ct value): 45.50±4.21 vs. 52.63±4.41, P<0.05 or P<0.01]. The urine miR-1 level in patients with STEAMI had a strong correlation with serum CK-MB or cTnI when CK-MB < 300 μg/L and cTnI <50 μg/L (Ct value of urine miR-1 with blood CK-MB: r=-0.81, P<0.01; Ct value of urine miR-1 with blood cTnI: r=-0.63, P<0.05).
  
  
  CONCLUSIONS
  The results suggest that urine miR-1 could be a novel sensitive biomarker the early diagnosis of SETAMI.
authors.affiliation: Department of Anesthesiology and Critical Care Medicine, Affiliated Hospital of Luzhou Medical College, Luzhou 646000, Sichuan, China.
authors.forename: Xiao-xia
authors.initials: XX
authors.lastname: Duan
authors.forename: Xian
authors.initials: X
authors.lastname: Zhou
authors.forename: Xiao-bin
authors.initials: XB
authors.lastname: Wang
authors.forename: Zhong-cai
authors.initials: ZC
authors.lastname: Fan
authors.forename: Chun-xiang
authors.initials: CX
authors.lastname: Zhang
authors.forename: Zhuang
authors.initials: Z
authors.lastname: Chen
mesh_terms: D000368:Aged; D016022:Case-Control Studies; D003402:Creatine Kinase / Q000097:blood; D005260:Female; D006801:Humans; D007527:Isoenzymes / Q000097:blood; D008297:Male; D035683:MicroRNAs / Q000652:urine*; D008875:Middle Aged; D009203:Myocardial Infarction / Q000097:blood / Q000503:physiopathology* / Q000652:urine*; D009206:Myocardium / Q000378:metabolism; D011446:Prospective Studies; D019210:Troponin I / Q000097:blood
chemical_list: D007527:Isoenzymes; C544547:MIRN1 microRNA, human; D035683:MicroRNAs; D019210:Troponin I; D003402:Creatine Kinase