[Peak nasal inspiratory flow in the assessment of nasal airway obstruction].

Relevance: Nasal congestion is one of the most common complaints in otolaryngology practice and can significantly impact the quality of life for patients. Objective and subjective assessments provide different information, but objective assessment of nasal obstruction is crucial for accurate diagnosis and appropriate treatment. This review demonstrates that peak nasal inspiratory flow (PNIF) is a reproducible and reliable measure of objective nasal patency.

[Functional significance of sulfated glycosaminoglycan complex for the control of fibroblast proliferation in vitro].

The effect of an original sulfated glycosaminoglycan (sGAG) mixture (keratan sulfate with chondroitin sulfate) was examined in the in vitro experiment with the cell culture of murine fibroblasts (cell line L929). Two forms (solution and gel) of the active substance were tested in different concentrations (0.1-5.