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OBJECTIVES To investigate whether hypoxia has an effect on regulation of multidrug resistance (MDR) to chemotherapeutic drugs in laryngeal carcinoma cells and explore the role of hypoxia-inducible factor-1α (HIF- 1α). METHODS Laryngeal cancer cells were cultured under normoxic and hypoxic conditions. The sensitivity of the cells to multiple drugs and(More)
Paclitaxel is a widely used chemotherapy drug for advanced laryngeal cancer patients. However, the fact that there are 20-40% of advanced laryngeal cancer patients do not response to paclitaxel makes it necessary to figure out potential biomarkers for paclitaxel sensitivity prediction. In this work, Hep2, a laryngeal cancer cell line, untreated or treated(More)
OBJECTIVE To investigate the possible mechanisms of oxymatrine's role in anti laryngeal squamous cell carcinoma. METHODS We examined the effects of oxymatrine on the proliferation, cell cycle phase distribution, apoptosis, and the protein and mRNA expression levels of HPV16E7 gene in laryngeal carcinoma Hep-2 cells in vitro. The HPV16E7 siRNA inhibition(More)
OBJECTIVE To investigate the characteristics of sensory gating P50 of patients with first-episode schizophrenia. METHODS The auditory evoked potentials P50 were recorded in 66 patients (Group Sch) with first-episode schizophrenia and 92 normal controls (Group NC) by using conditioning/testing paradigm presented with auditory double click stimuli. (More)
OBJECTIVE To evaluate the results of surgery for laryngeal carcinoma. METHODS A retrospective analysis of long-term therapeutic effect was made on surgery of 105 patients with laryngeal carcinoma in the past 15 years. There were 197 males, 8 cases of female. Tumor stage were included 3 cases of Tis NOMO, 45 cases of T1NOM0, 1 case of T1N1M0, 88 cases of(More)
OBJECTIVE To investigate the feasibility of modified frontolateral partial laryngectomy without tracheostomy in the treatment for early laryngeal cancer or severe atypical hyperplasia of the true vocal cord. METHODS A retrospective analysis of 41 patients treated in the past 6 years with modified frontolateral partial laryngectomy without tracheostomy was(More)
The present study aimed to evaluate the expression of hypoxia-inducible factor-1α (HIF-1α) and MDR1/P-glycoprotein (P-gp) in human laryngeal squamous cell carcinoma (LSCC) tissues, and also to investigate the regulation of MDR1 gene expression by HIF-1α in Hep-2 cells under hypoxic conditions. The expression of HIF-1α and MDR1/P-gp in human LSCC tissues was(More)
OBJECTIVE To investigate the effects of risperidone on the polysomnography (PSG) in the patients with first-episode schizophrenia. METHODS Twenty-five patients with first-episode schizophrenia, 13 males and 12 females, aged 29 +/- 8, underwent polysomnographic recording for 4 consecutive nights, the first night being used for acclimatization, and on the 3(More)
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