Abstract
The study included 115patients with LC at the age from 24to 80years (average age 58years), among whom there were 78% men and 22% women. The parameters of surface (interfacial) viscosity, elasticity, viscoelasticity module, tension and relaxation of blood serum were studied by the oscillating drop method using a computer tensiometer "PAT2-Sinterface", and its volumetric viscosity was investigated using a Low-Shear-30rotational viscometer. ARPB parameters were also studied in a control group composed from 50 healthy donors. Increased levels of volumetrical viscosity, surface tension, surface elasticity and the relaxation time of the blood are typical for patients with LC and depended on the localization of the tumor, its histological variant, differentiation grade, severity of the course of the disease, the number of metastases in the lymph nodes, distant organs and skeleton, involvement of the pleura and ribs, the development of compression pulmonary syndrome, metastasis into the spine, adrenals, brain, and pancreas. The surface-active, viscoelastic and relaxation properties of the blood correlated with the levels of tumor markers (TGFβ1, VEGF, C-reactive protein, α2-macroglobulin). Integral changes of ARPB observed in every fifth patient with LC are involved in the pathogenesis of the disease, have predictive value in relation to the clinical course of disease (volumetric viscosity) and the development of complications from radiochemotherapy (surface viscosity).
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