Subject(s)
Liposomes/administration & dosage , Nasal Sprays , Rhinitis, Allergic/drug therapy , Vitamin A/therapeutic use , Vitamin E/therapeutic use , Administration, Intranasal , Adult , Aerosols/administration & dosage , Double-Blind Method , Female , Humans , Male , Middle Aged , Neutrophils , Prospective StudiesABSTRACT
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a persistent sinonasal mucosa inflammatory disease with still unclear pathophysiologic mechanisms that imply events of tissue repair and structural remodelling. Several cascades seem to have a considerable role in the onset and progression of mucosa hyperproliferation in nasal polyps including transforming growth factor ß/Small mother against decapentaplegic (TGFß/Smads), mitogenactivated protein kinases (MAPKs), advanced glycosylation end-products (AGEs) together with epithelial-tomesenchymal transition (EMT). Since many inflammatory mediators are reported to play important roles in the development of nasal polyps (NP) disease, this study aimed to analyse the correlation between the AGEs/receptor of advanced glycosylation end-products (RAGE)/extracellular signal-regulated kinase (ERK) signalling pathway and the main markers of EMT to better understand the influence that they exert on the remodelling of nasal mucous membranes in patients affected by CRSwNP vs normal controls. A total of 30 patients were enrolled in this study. Immunohistochemical analysis, using AGE, RAGE, p-ERK, MMP-3, TGF-ß1, Smad2/3, Collagen I-III, α-SMA, E-cadherin, IL-6 and Vimentin antibodies, was performed. AGE, RAGE, ERK, p-ERK and MMP3 were also evaluated using western blot analysis. We observed an overexpression of the AGE/RAGE/p-ERK and the main mesenchymal markers of EMT (Vimentin and IL-6) in CRSwNP vs controls whereas the TGF-ß/Smad3 pathway did not show any significant differences between the two groups of patients. These observations suggest a complex network of processes in the pathogenesis of NP, and the AGE/RAGE/ERK pathway and EMT might work together in promoting tissue remodelling in the formation of CRSwNP.
Subject(s)
Epithelial-Mesenchymal Transition/physiology , MAP Kinase Signaling System/physiology , Nasal Polyps/etiology , Sinusitis/etiology , Adult , Chronic Disease , Extracellular Signal-Regulated MAP Kinases/metabolism , Female , Glycation End Products, Advanced/metabolism , Humans , Immunohistochemistry , Interleukin-6/metabolism , Male , Nasal Mucosa/pathology , Nasal Polyps/pathology , Nasal Polyps/physiopathology , Receptor for Advanced Glycation End Products/metabolism , Sinusitis/pathology , Sinusitis/physiopathology , Vimentin/metabolismABSTRACT
Patients with allergic rhinitis (AR) can suffer from mood disorders. The aim of this study was to investigate the clinical effect of a liposomal nasal spray (LN) containing vitamins A and E on the nasal mucosa in patients suffering from AR who had refused any type of anti-allergic treatment. For this purpose, the results of nasal cytology, Visual Analog Scale (VAS), Sino-Nasal Outcome Test-22 (SNOT-22), and Hospital Anxiety and Depression Scale (HADS) test were analyzed. Moreover, we evaluated the relationship between SNOT-22 and nasal cytology and between nasal symptoms and HADS scores. Statistical analysis revealed a significant decrease of scores at T1 in the LN treatment group as concerns VAS, SNOT-22, HADS-Anxiety test and a remarkable reduction of inflammatory cells detected with nasal cytology. Our study showed that higher levels of SNOT-22 corresponded to a higher level of HADS-Anxiety. The mechanisms underlying this relationship in AR patients are currently unknown, but we can suppose that improving mucosal trophism may contribute to the decrease of nasal symptoms and anxiety scores. The improvement of nasal symptoms, as measured by SNOT-22, was significantly correlated with the objective results of nasal cytology. These relationships between SNOT-22 and nasal cytology and between anxiety and cytology were investigated for the first time in our research.
