title: [Changes of the new gaseous transmitter H2S in patients with coronary heart disease].
abstract: OBJECTIVE
  To investigate the changes of plasma hydrogen sulfide (H(2)S) in patients with coronary heart disease (CHD).
  
  
  METHODS
  Plasma H(2)S levels were measured in 40 patients with CHD and 17 angiographically normal patients by sulfide-sensitive electrodes, and the variation of plasma H(2)S levels was analyzed in different clinical types of CHD and in different types of coronary artery lesions. The association of plasma H(2)S levels with the risk factors of CHD was also analyzed.
  
  
  RESULTS
  Plasma H(2)S levels were significantly lowered in CHD patients in comparison with that in angiographically normal control subjects (26.10+/-14.27 micromol/L vs 51.74+/-11.94 micromol/L, P<0.001). In CHD patients, plasma H(2)S levels in unstable angina patients (UAP, 23.60+/-14.41 micromol/L) and acute myocardial infarction patients (AMI, 19.98+/-7.516 micromol/L) were significantly lower than that in stable angina patients (SAP, 38.41+/-14.53 micromol/L, P<0.05). No significant difference in plasma H(2)S levels was found between CHD patients with double-vessel and multi-vessel lesions (16.91+/-7.98 vs 18.39+/-7.78 micromol/L, P>0.05), but the two groups of patients had significantly lower plasma H(2)S levels than patients with single-vessel involvement (33.04+/-15.01 micromol/L, P<0.05 and P<0.01, respectively). Plasma H(2)S level was significantly lower in CHD patients with coronary artery occlusion than in patients with simple stenosis (19.04+/-9.55 vs 28.24+/-14.85 micromol/L, P<0.05). Among the CHD patients, H(2)S levels were significantly lower in smokers than in non-smokers (27.54+/-10.37 vs 32.24+/-15.77 micromol/L, P<0.05), also lower in hypertensive patients than in normotensive patients (20.36+/-8.69 vs 33.77+/-15.86 micromol/L, P<0.01). Plasma H(2)S levels showed a significant inverse correlation with blood glucose (r=-0.493 6, P=0.001 6), but there were no significant correlations with sex, age, cholesterol, triglyeride, TC, low-density lipoprotein, high-density lipoprotein, or body mass index.
  
  
  CONCLUSIONS
  Decreased plasma H(2)S levels may correlate with the severity of CHD and changes of the coronary artery, and may implicate the risk factors of CHD such as smoking, hypertension, and high blood glucose.
authors.affiliation: Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China. bluefate121@126.com
authors.forename: Hai-long
authors.initials: HL
authors.lastname: Jiang
authors.forename: Hong-chao
authors.initials: HC
authors.lastname: Wu
authors.forename: Zhi-liang
authors.initials: ZL
authors.lastname: Li
authors.forename: Bin
authors.initials: B
authors.lastname: Geng
authors.forename: Chao-shu
authors.initials: CS
authors.lastname: Tang
mesh_terms: D000328:Adult; D000368:Aged; D000789:Angina, Unstable / Q000097:blood; D003327:Coronary Disease / Q000097:blood*; D005260:Female; D006801:Humans; D006862:Hydrogen Sulfide / Q000097:blood*; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000097:blood; D012307:Risk Factors
chemical_list: D006862:Hydrogen Sulfide