ENDOTHELIAL DYSFUNCTION IN PATIENTS WITH CHRONIC OBSRTRUCTIVE PULMONARY DISEASE WITH CONCOMITANT HYPERTENSION.

In recent years, special attention is paid to comorbid conditions in the clinic of internal diseases. There actively explored the role of endothelial dysfunction as a single unit in the pathological formation of chronic obstructive pulmonary disease (COPD) associated with hypertension. The study involved 145 patients who were carried out the final level of metabolites of nitric oxide (NO2, NO3), S-nitrosothiols, endothelial and inducible NO-synthase. All patients were divided into 3 groups: the first group included 55 patients (35 men and 20 women) who had been diagnosed with COPD with concomitant hypertension - the core group. The average age for this group was 57,6 years (46±68). The comparison group consisted of 45 patients (34 men and 11 women) with isolated course of COPD. The average age for second group was 53,3 years (40±67). The control group consisted of 45 healthy volunteers - 25 men and 20 women. Results of the study of the endothelial dysfunction revealed dynamic change in serum nitrate, nitrite, S-nitrosothiols and activity of eNOS and iNOS as the group of patients with COPD with associated hyperttension and the group of patients with isolated COPD. Informative and prognostic indicators relatively severity of diseases in patients with significant comorbidity may be considered high levels of iNOS and S-nitrosothiols, which indicates the voltage of the functional activity of endogenous antioxidant defense mechanisms in this cohort of persons. The findings suggest that the progression of endothelial dysfunction in comorbidity, which may lead to the current aggravation of diseases and vascular disorders in these patients.