Aim. To investigate the association between plasma levels of galectin-3 and parameters of endogenous inflammation and nitrosylation oxidative stress (NOS) in patients with decompensated chronic heart failure (CHF). Material and methods. In total, 197 CHF patients with myocardial infarction in medical history were divided into 3 groups: Group 1 (n=56) with Functional Class (FC) II CHF IIA; Group 2 (n=72) with FC III CHF IIA; and Group 3 (n=69) with FC IV CHF IIB. The control group (CG) included 39 healthy individuals. Plasma levels of galectin-3, 3-nitrotyrosine, low-density lipoprotein (LDL) oxidation, EC-SOD activity, interleukin-6, and high-sensitivity C-reactive protein (hsCRP) were measured. Results. In Groups 1, 2, and 3, plasma levels of galectin-3 were significantly higher than in CG: by 39% (p<0,05), 164% (p<0,001), and 428% (p<0,001), respectively. The activity of NOS increased in parallel with CHF FC: by 24% (p<0,05) in Group 1, by 81% (p<0,01) in Group 2, and by 152% (p<0,001) in Group 3. There was a strong positive correlation between galectin-3 and 3-nitrotyrosin and between galectin-3 and LDL oxidation across all three groups. The activity of endogenous inflammation also increased in parallel with CHF FC. A strong positive correlation between galectin-3 and hsCRP, as well as between galectin-3 and interleukin-6, was also observed. Conclusion. Galectin-3 levels correlate with CHF severity and are associated with the key parameters of NOS and endogenous inflammation. Therefore, galectin-3 could be regarded as a marker and mediator of these pathological processes.
Objectives to reveal cause-and-effect relationships in the system "air pollution morbidity of the population" in a large industrial city.
Material and methods.The dynamics of the pollutants concentration, such as formaldehyde and benzopyrene, through the period of 20152017 was analyzed in relation to the indicators of the morbidity of the respiratory system in the population of Samara. In particular, the study focused on the ratio of allergic rhinitis and asthma cases and the concentration of the formaldehyde and benzopyrene.
Results.The incidence of respiratory diseases and the general morbidity increased both among children (by 46.7%) and adults (by 11.4%). There was the causal correlation between the effect of benzopyrene on the development of allergic rhinitis and bronchial asthma in children(r = 0.57 and r = 0.76) and in adults (r = 0.45 and r = 0.51) in Samara. The significant differences between the level of the pollutants and the frequency of the respiratory system diseases were registered in children and adults in different areas of Samara.
Discussion.As a result of the increase of the maximum allowable concentration (MAC) of formaldehyde in atmospheric air, this pollutant has now ceased to be a priority. The revealed negative correlations point to the absence of an adverse effect of formaldehyde on the development of allergic rhinitis and bronchial asthma in both children and adults in Samara.
Conclusion.According to the results of the study, the preventive measures aimed at reducing the impact of main air pollutants on the health of children and adults in Samara were suggested. Their implementation is possible by the immediate informing of the executive authorities to ensure they can make timely management decisions to improve the quality of the environment.
The complex estimation of ambient air in Novokuibyshevsk is fullfilled. Negative impact of pollutions on
public health (benzo(a)pyrene and formaldehyde) is considered. The dynamics of changes in the
concentrations of pollutants and allergic respiratory diseases in children and adult population of the city
was shown. A strong correlation between exposure to formaldehyde (by initial concentrations) and the
level of allergic respiratory diseases in children population as a whole and for individual nosological
forms: allergic rhinitis and bronchial asthma is proved.
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