The Genotoxic Effect of Nasal Steroids on Human Nasal Septal Mucosa and Cartilage Cells In Vitro.

OBJECTIVE: To determine whether budesonide (Bud) and triamcinolone acetate (TA) cause DNA fractures in the nasal mucosa and septal cartilage cells through examinations using the comet assay technique. STUDY DESIGN: Prospective, controlled experimental study. SETTING: University hospital. METHODS: Septal mucosal epithelial and cartilage tissue samples were taken from 9 patients. Cell cultures were prepared from these samples. Then, budesonide and triamcinolone acetate active ingredients at 2 different doses of 0.2 and 10 µM were separately applied to the cell cultures formed from both tissues of each patient, except the control cell culture, for 7 days in one group and 14 days in one group. After the applications, genotoxic damage was scored with the comet assay technique and the groups were compared. RESULTS: In both the budesonide and triamcinolone acetate groups, the comet scores at low and high doses, on the 7th and 14th days were found to be significantly higher in both cartilage and epithelial tissue than in the control group. CONCLUSION: The study results showed that budesonide and triamcinolone acetate lead to a significantly high rate of genotoxic damage in both epithelial tissue and cartilage tissue.

The differences in the expression of fractalkine and its receptor in conditions of tonsillar hypertrophy and chronic tonsillitis.

OBJECTIVE: Fractalkine, member of chemokine family, is involved in many inflammatory processes in the human body. The aim of this study is to compare expression levels of fractalkine ligand and its receptor in chronic tonsillitis and hypertrophic tonsil samples. METHODS: The study was conducted at Baskent University Departments of Otorhinolaryngology and Medical Genetics. It is designed as a prospective, non-randomized, controlled clinical study. Total 97 samples, obtained from adenotonsillectomy due to chronic tonsillitis or tonsillar hypertrophy, were participated in the study. Fractalkine and its receptor expression levels were determined and comparison was made between the tissue groups. c.839C>T (T280M) polymorphism of fractalkine receptor was analyzed, then relationship between polymorphism and the expression level of fractalkine receptor was investigated. RESULTS: Fractalkine receptor expression was significantly higher in the hypertrophic tonsil group than chronic tonsillitis group (p<0.05). CONCLUSION: Fractalkine, member of chemokine family, and its receptor may play role in preventing chronic-recurrent tonsillitis.

Effect of mometasone furoate nasal spray on the DNA of nasal mucosal cells

Background/aim: Allergic rhinitis (AR) is a respiratory disease caused by inflammation of the nasal mucosa. Intranasal corticosteroids (ICs) are an effective treatment for AR; however, their use has been associated with atrophy in nasal mucosae. Because DNA damage has been linked to several chronic diseases, we hypothesize that use of ICs could cause DNA damage in nasal mucosa cells, leading to mucosal atrophy and septal perforation. Materials and methods: Sixty patients with moderate or severe AR were divided randomly into two groups. Mometasone furoate (MF) and antihistamine tablets (desloratadine) were given to the study (IC) group. Physiologic saline and desloratadine were given to the control ((serum physiologic (SP)) group. Nasal irrigation fluid was taken from patients before study commencement and after 4 weeks of treatment. The comet assay was applied to detect DNA damage in nasal mucosa cells. Results: Nineteen patients were excluded, leaving a study population of 41 patients (IC group: 17 patients; SP group: 24 patients). Genotoxic damage was evaluated by comet assay. Conclusion: Treatment with MF spray for 4 weeks does not cause DNA breaks within cells in the nasal mucosa. These results could form the basis of clinical trials involving treatment with different ICs over longer treatment periods.

Adenoidectomy: current approaches and review of the literature.

Adenoid is a secondary lymphoid organ located in the nasopharynx. Due to its location, it plays an important role in the host defense of the upper respiratory tract. Immunoglobulin G3 and immunoglobulin A1 antibodies are prevalent antibodies in the adenoid tissue. Adenoidal hypertrophy is a common condition in children causing symptoms such as mouth breathing, nasal discharge, snoring, sleep apnea, and hyponasal speech. It also plays a role in the pathogenesis of rhinosinusitis, recurrent otitis media, and otitis media with effusion. Currently, adenoidectomy is one of the most commonly performed pediatric surgical procedures worldwide. Although there is still poor evidence in the literature, recurrent upper respiratory infections, otitis media with effusion, and obstructive sleep apnea syndrome are considered to be the main indications of adenoidectomy. Adenoidectomy can be carried out with several techniques and instruments. Although rare, surgery possesses some risks and may cause emotional distress both for the patient and the family. Non-surgical treatments such as intranasal steroids are also used in the treatment of adenoid hypertrophy. In this review, we discuss the current literature on the adenoid function, adenoidectomy indications, and treatment of adenoid hypertrophy.

A comparative study on nasal packing after septoplasty: does it matter in terms of patient comfort, bleeding, and crust or synechia formation?

OBJECTIVES: This study aims to compare pain, bleeding, nasal obstruction, crust and synechia formation, and anesthesia-related morbidity in patients with and without use of nasal packs after septoplasty. PATIENTS AND METHODS: A total of 66 patients (32 women, 34 men; mean age 24 years; range 18 to 48 years) who underwent Cottle's septoplasty under general anesthesia were randomly allocated to three groups in this prospective cohort. Telfa nasal packs were used in sutures + telfa group (n=22) and Merocell nasal packs in merocel alone group (n=22). No packs were administered in sutures alone group (n=22). Three groups were compared in terms of nasal obstruction, bleeding, pain, crust and synechia formation, as well as the amount of secretion, the need for oropharyngeal airway, the presence of laryngospasm, and effort for nasal breathing after anesthesia. RESULTS: The amount of bleeding was higher with lower degree of nasal obstruction in sutures alone group. Pain and secretion were more remarkable in merocel alone group. After the first week, these differences were unable to be differentiated among the groups. There were no differences between three groups with respect to crust and synechia formation two weeks after septal surgery. CONCLUSION: Nasal packs can be more useful in patients who suffer from bleeding-related morbidity, while septoplasty applied without nasal packs can be more suitable in patients with obstructive sleep apnea. The use of nasal packs in septoplasty should be determined on an individualized basis with respect to the characteristics of each patient.