title: The relationship between heart rate variability and prostaglandin E2 in patients with renal insufficiencies.
abstract: OBJECTIVE
  To investigate the relationship between heart rate variability (HRV) and prostaglandin E2 (PGE2) in patients with renal insufficiencies.
  
  
  METHODS
  HRV blood and 24-hour urine prostaglandin E2 (PGE2) detection were detected in the following 4 groups of people: group A was a control group comprised of 20 normal individuals; group B had 20 patients with renal disease but exhibiting normal renal function; group C contained 20 patients with renal disease and compensatory renal function; group D had 20 patients demonstrating renal insufficiencies. The indices standard deviation of all NN intervals (SDNN), index of standard deviation of the averages of NN intervals (SDANN), mean of the standard deviation of all NN intervals performed on all 5-minute segments of the entire recording (SDNNindex), square root of the mean of the sum of the squares of differences between adjacent NN intervals (rMSSD) and NN50 count divided by the total number of all NN intervals (PNN50) were used to evaluate HRV, blood and 24-hour urine were determined by specific radioimmunoassay (RIA).
  
  
  RESULTS
  PGE2 in blood and urine and HRV exactly within 24 hours in patients with renal insufficiencies, negatively correlated with worsening damage to renal function. There was a slight or moderate correlation between blood and urine PGE2 and the SDNNindex, SDANNindex, SDNN, rMSSD and PNN50 indices (P < 0.05).
  
  
  CONCLUSIONS
  HRV and cardiac autonomic regulatory functions are decreased in the patients with renal insufficiencies, while lower levels of PGE2 may be a related factor.
authors.affiliation: Department of Renal Diseases, First Affiliated Hospital, Zhejiang University of Medical College Hangzhou 310003, China. chenyilun888@163.com
authors.forename: Yilun
authors.initials: Y
authors.lastname: Chen
authors.forename: Jianhua
authors.initials: J
authors.lastname: Zhu
authors.forename: Shenjiang
authors.initials: S
authors.lastname: Hu
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Zhao
authors.forename: Baoxian
authors.initials: B
authors.lastname: Chen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D015232:Dinoprostone / Q000502:physiology*; D005260:Female; D006339:Heart Rate / Q000502:physiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D051437:Renal Insufficiency / Q000503:physiopathology*
chemical_list: D015232:Dinoprostone