New metal-free one-pot synthesis of α-2-deoxy-ulosides in moderate to good yields by microwave-assisted double Michael addition of various O-nucleophiles to β-enamino ketones in the presence of 12 N HCl. These glycosyl additions occurred with high α-stereoselectivity and were complete in 10-25 min in 51-93% yield. In addition, high α-stereoselectivity was also observed when S-nucleophiles were examined.
View Article and Find Full Text PDFLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
March 2021
To summarize and analyze the feasibility, safety and efficacy of parapharyngeal space surgery assisted by coblation and endoscopic system with transoral approach. The data of 20 patients with parapharyngeal space tumors were retrospectively analyzed. All the patients underwent CT and/or MRI examination before surgery, and all underwent transoral approach assisted by coblation and endoscopic systems.
View Article and Find Full Text PDFWorld J Otorhinolaryngol Head Neck Surg
September 2015
Objective: To explore the feasibility of the submental island flap in the repair of hypopharyngeal defects.
Methods: We collected wet specimens of fresh cadaveric heads from the Han Chinese adult population for applied anatomy of the submental island flap, and followed five patients with pyriform sinus carcinoma after reconstruction surgery using submental island flaps.
Results: We found that the average length and width of the submental island flaps were (65.
The aim of this study was to determine the prevalence of enterotoxins (SEs) in the serum from patients with chronic rhinosinusitis (CRS) and its involvement in the condition. Thirty CRS patients without nasal polyps (CRSsNP), 40 CRS patients with nasal polyps (CRSwNP), and 30 healthy controls were enrolled in this study. Peripheral blood was obtained and analyzed to measure the serum levels of total IgE, specific IgE to SEA, SEB and SEC, and eosinophil cationic protein (ECP) using ImmunoCAP assays.
View Article and Find Full Text PDFOtolaryngol Head Neck Surg
February 2015
Objectives: Toll-like receptors (TLRs) are the crucial components of host defenses and supposed to play a role in nasal inflammation such as chronic rhinosinusitis and seasonal allergic rhinitis. This study was performed to investigate the expression patterns of TLRs and related cytokines in persistent allergic rhinitis (PER).
Study Design: Experimental study of human nasal tissue.
Annu Int Conf IEEE Eng Med Biol Soc
June 2015
This paper presents an approach to detection and segmentation of liver tumors in 3D computed tomography (CT) images. The automatic detection of tumor can be formulized as novelty detection or two-class classification issue. The method can also be used for tumor segmentation, where each voxel is to be assigned with a correct label, either a tumor class or nontumor class.
View Article and Find Full Text PDFLin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
June 2013
Objective: To explore the feasibility and efficacy of mitomycin C(MMC) in the treatment of airway scarring stenosis.
Method: The clinical materials of 11 patients with airway stenosis treated with MMC from 2008 to 2012 were analyzed retrospectively,including atresiaofnasopharynx/choanal atresia (2 cases), pharyngostenosis (1 case), and laryngotracheal stenosis (8 cases). All were treated with endoscopic surgery under general anesthesia.
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
June 2009
Objective: To evaluate the effects of nasal mometasone furoate on moderate to severe allergic rhinitis.
Methods: Patients with moderate to severe allergic rhinitis were enrolled and received mometasone furoate nasal spray 200 microg once daily for four weeks. Four hundreds and sixty-three patients completed the study.
Conclusion: Mometasone furoate nasal spray (MFNS) can reduce the symptoms and improve quality of life in Chinese patients with moderate to severe allergic rhinitis (AR).
Objective: To evaluate the effects of MF on symptoms and quality of life in Chinese patients with moderate to severe AR.
Patients And Methods: In a multicenter and open-label study, 500 patients with moderate to severe AR were enrolled and received MFNS 200 microg once daily.