[The NT-proBNP in saliva and blood serum in norm and under periodontitis.]
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Updated: Jan 30, 2026

Collection and Extraction of Saliva DNA for Next Generation Sequencing
Published on: August 27, 2014
D Yu Sosnin1, O S Gileva1, L A Mozgovaia1
1The Federal State Budget Educational Institution of Higher Education "Е.A. Wagner Perm State Medical University" Ministry of Health of Russia, 614990, Perm, Russia.
Abstract:
The concentration of NT-proBNP in saliva and blood serum was studied. The study included 58 individuals divided in two groups. The main group (group I) included 34 patients with chronic generalized periodontitis. The control group (group II), comparable in age and gender, included 24 examined individuals without signs of inflammatory diseases of oral cavity. The concentration of NT-proBNP in saliva and blood serum was detected by technique of solid-phase enzyme immunoassay using the test-system "NT-proBNP-ELISABEST" (Vector-Best, Russia). The concentration of NT-proBNP in saliva of patients of main group reliably exceeded its concentration in saliva of the examined from control group. The median and interquartile range made up to correspondingly 178.5 (128-253) pg / ml in main group and 105 (72.5 - 144.5) pg, respectively / ml in control group (p = 0.02). The comparison of concentration of NT-proBNP in blood serum samples established no reliable differences (p = 0,27). The evaluation of the relationship between content of NT-proBNP in saliva and blood serum demonstrated absence of close linear correlation dependence between the concentration of this compound in blood serum and saliva both in the main group (R = 0.143, p = 0.419) and the control group (R = 0.178; p = 0.405), and for all the examined as well (R = 0.252, p = 0.056). The higher concentration of NT-proBNP in saliva in comparison with blood serum can be explained by formation of proteolysis products cross-reacting in the used system.
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