ABSTRACT
Congenital heart disease(CHD)with pulmonary hypertension(PH)is one of the intractable cardiovascular diseases, and its pathogenesis is not completely clear.Hydrogen sulfide(H 2S)is the third gas signal molecule after nitric oxide(NO)and carbon monoxide(CO). It can be synthesized in mammals.More and more studies have shown that H 2S can regulate pulmonary vascular remodeling through vasodilation, anti-apoptosis, antioxidant stress, anti-inflammation and angiogenesis, so as to protect children with CHD complicated with PH.In recent years, the research focus in this field has shifted to the development of new H 2S donors.This article mainly describes H 2S and its regulatory mechanism in CHD with PH, and introduces the new progress of H 2S donor therapy.
ABSTRACT
Objective To investigate the value of serum interleukin-6 (IL-6) ,haptoglobin (HPT) and amy-loid A (SAA) in patients with acute exacerbation of chronic obstructive pulmonary disease (COPD) with pneumonia.Methods 87 cases of acute exacerbation of COPD without pneumonia and 76 cases with pneumo-nia ,admitted in the hospital from December 2015 to March 2017 ,were selected as COPD without pneumonia group and COPD with pneumonia group.62 healthy people who underwent the healthy assessment during the same period were selected as the control group.The changes of serum IL-6 ,HPT and SAA levels in three groups ,the value of serum IL-6 ,HPT and SAA levels in detecting COPD with pneumonia and the correlation of IL-6 ,HPT and SAA were compared.Results COPD patients with serum IL-6 ,HPT and SAA were higher than group COPD with pneumonia group and control group ,and COPD is not associated with serum IL-6 , HPT and SAA in pneumonia group than the control group (P＜0.05) ;IL-6+ HPT+SAA diagnostic specifici-ty ,sensitivity and positive predictive value is higher than IL-6 ,HPT and SAA (P＜0.05) ;IL-6 and HPT was positively related with SAA and HPT was positively correlated with SAA.The serum levels of IL-6 ,HPT and SAA in the COPD with pneumonia group were higher than those in the COPD without pneumonia group and the control group ,and the serum IL-6 ,HPT and SAA levels in the COPD without pneumonia group were higher than those in the control group ,and the difference was statistically significant (P＜0.05).The diagnos-tic specificity ,sensitivity and positive predictive value of the combined detection of IL-6 ,HPT and SAA levels were higher than those of single detection of IL-6 ,HPT and SAA level ,and the difference was statistically sig-nificant (P＜0.05) ;IL-6 level was positively correlated with HPT and SAA levels ,and HPT was positively correlated with SAA level.Conclusion The levels of serum IL-6 ,HPT and SAA in patients with acute exacer- bation of COPD increased.The combined detection of the three had relatively high sensitivity and specificity , and the levels of IL-6 ,HPT and SAA were positively correlated.