Classification of non-allergic rhinitis based on inflammatory characteristics.

The study aims to investigate nasal and lower airway inflammation in patients with non-allergic rhinitis (NAR), and to discuss a method of NAR classification based on inflammatory characteristics and its clinical significance. A total of 117 NAR patients admitted to our hospital from June 2010 to June 2011 were enrolled in this study, 162 healthy participants were employed as healthy controls. Nasal and lower airway inflammation were evaluated using the skin prick test, nasal and pulmonary visual analogue scale scoring, cell blood count, nasal douche, induced sputum assay, nasal provocation test, and bronchial provocation test.

Association between CYP1B1 gene polymorphisms and risk factors and susceptibility to laryngeal cancer.

Background: The aim of this study was to investigate the association between polymorphism of the cytochrome P450 1B1 (CYP1B1) gene, a metabolic enzyme gene, and the susceptibility to laryngeal cancer among the Chinese Han population.

Material/methods: In a case-control study, we investigated polymorphisms in the CYP1B1 gene (rs10012, rs1056827, and rs1056836) with a real-time quantitative polymerase chain reaction (PCR) assay (TaqMan). The study was conducted with 300 Chinese Han patients with laryngeal cancer and 300 healthy Chinese Han subjects in a control group.

Haplotype analysis of the XRCC1 gene and laryngeal cancer.

Objective: Several polymorphisms in DNA repair genes have been extensively studied in association with various human cancers, including laryngeal cancer. The present study aimed to investigate the association between polymorphisms of the XRCC1 gene and laryngeal cancer in a Chinese population.

Methods: Five polymorphisms of the XRCC1 gene (rs3213403, rs1799778, rs1001581, rs3213282, and rs3810378) were genotyped by TaqMan in 234 patients with larynx cancer and 230 age- and sex-matched controls without cancer.

Isolated frontal sinusitis treated using an anterior-to-ethmoidal bulla surgical approach.

Traditional frontal sinus surgery is associated with a significant trauma. Herein, we have discussed the feasibility, technique, and efficacy of a minimally invasive anterior-to-ethmoidal bulla surgical approach performed under nasal endoscopy to treat isolated frontal sinusitis. Fifteen patients with isolated frontal sinusitis underwent the anterior-to-ethmoidal bulla surgical procedure under general anesthesia.

Repair of ear cartilage defects with allogenic bone marrow mesenchymal stem cells in rabbits.

The study aims to investigate the feasibility of repairing cartilaginous defects with chondrocytes induced from allogenic bone marrow mesenchymal stem cells (BMMSC) in rabbits' ear. BMMSCs were isolated and purified from New Zealand rabbits, in vitro amplified, and cultured in chondrocyte induction medium in order to acquire chondrocytes. After 3 weeks of induction, their phenotypes were confirmed as chondrocytes, then they were implanted onto novel polymeric scaffolds made from Poly (dl-lactide-co-glycolide) (PLGA) embedded with chitosan nonwoven cloth.

Combination of autologous fascia lata and fat injection into the vocal fold via the cricothyroid gap for unilateral vocal fold paralysis.

Objectives: To apply the technique of injection of a combination of autologous fascia lata and fat into the vocal fold via the cricothyroid gap for unilateral vocal fold paralysis and to evaluate the therapeutic effect in 12 patients who underwent the procedure.

Design: Retrospective analysis of 12 patients.

Setting: Academic research.

[Endonasal anatomy of lacrimal sac and its clinical significance in dacryocystorhinostomy].

Objective: To explore the intranasal surface localization of the lacrimal sac in endoscopic dacryocystorhinostomy.

Methods: Fifteen adult cadavers (30 sides) were studied, the data of projection position of the lacrimal sac on the lateral wall of nasal cavity were measured.

Results: In 2/3 cadavers, the lacrimal sac is located above the axilla of the middle turbinate, and 1/3 lies below it.