Publications by authors named "Chang-hai Yu"

Metabotropic glutamate receptor 1 (mGlu1 receptor) is expressed in many cancer cell types as compared to normal counterparts underscoring its potential role in tumor behavior. The aim of present study was to test the role of mGlu1 receptor in experimental non-small cell lung cancer (NSCLC). First, protein expression of mGlu1 receptor was higher in human NSCLC cell lines, including both adenocarcinoma and squamous carcinoma subtypes, when compared to normal bronchial epithelial cells.

View Article and Find Full Text PDF

Non-small cell lung cancer (NSCLC) is one of the most common diseases encountered in medical oncology practice. The aim of the present study was to test the antitumour effects of short-hairpin RNA targeting aquaporin 3 (AQP3) in experimental NSCLC. Expression of AQP3 was suppressed in human A549 and H1299 NSCLC cell lines by short-hairpin RNA-mediated silencing.

View Article and Find Full Text PDF

Andrographolide is a major bioactive labdane diterpenoid isolated from Andrographis paniculata and has protective effects against cigarette smoke (CS)-induced lung injury. This study was done to determine whether such protective effects were mediated through modulation of microRNA (miR)-218 expression. Therefore, we exposed human alveolar epithelial A549 cells to cigarette smoke extract (CSE) with or without andrographolide pretreatment and measured the level of glutathione, nuclear factor-kappaB (NF-κB) activation, proinflammatory cytokine production, and miR-218 expression.

View Article and Find Full Text PDF

Inflammatory response plays an important role not only in the normal physiology but also in the pathology such as atherosclerosis. Meprin, an astacin metalloproteinase, has exhibited proinflammatory effects in vivo and in vitro studies. Here, we tried to further investigate the proinflammatory potential of meprin-β and the possible underlying mechanisms in primary human peripheral blood macrophages.

View Article and Find Full Text PDF

Non-small cell lung cancer (NSCLC) has a high mortality rate and poor prognosis. The aim of the present study was to silence EZH2 and explore the antitumor effect of small interfering RNA (siRNA)-EZH2 in combination with radiotherapy, which is a main treatment for NSCLC. The results showed that irradiation in the presence of siRNA-EZH2 arrested A549 cells in the G(0) and G(1) phases, delayed cell cycle progression and effectively inhibited cell proliferation, compared with cells that received radiotherapy alone.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates how interferon-γ (IFN-γ) affects the effectiveness of radiotherapy in lung cancer, specifically using A549 cells.
  • Co-treating A549 cells with IFN-γ and γ ray significantly reduced cell viability and increased the expression of P53 protein compared to treatment with γ rays alone.
  • The findings suggest that combining γ ray irradiation with IFN-γ may enhance radiotherapy outcomes, indicating potential for improved clinical treatment strategies in lung cancer.
View Article and Find Full Text PDF

Objective: To explore the clinical characteristics, diagnosis and surgical treatment of adult congenital bronchoesophageal fistula.

Methods: Eleven cases of adult congenital bronchoesophageal fistula that were diagnosed and surgically treated between May 1990 and August 2010 had been reviewed. There were 7 male and 4 female patients, ranging in age from 28 to 66 years (mean 48.

View Article and Find Full Text PDF

Objective: To discuss the treatment effect of wedge resection and thermal cautery of pleura for patients with malignant pleural effusion (MPE) caused by lung cancer under VATS.

Methods: 37 patients with MPE underwent wedge resection and thermal cautery of pleura under VATS, from June 2005 to December 2008. Postoperative tumor markers level was contrasted with the preoperative, and the control rate of pleural effusion and survival rate of the patients were compared with control group, including 25 patients undergoing intrapleural chemotherapeutics in the same period.

View Article and Find Full Text PDF

Prostate cancer is a form of malignancy that is most likely to develop in older males, but because of the propensity to metastasize to parts of the body, particularly the bones, can have a deleterious impact on quality of life. Recently monocyte chemoattractant protein-1 (MCP-1) has been shown to play important role in prostate cancer progression and metastasi. In this study we aimed to investigate the mechanisms underlying its functional roles.

View Article and Find Full Text PDF

Aim: To study the clinical characteristics, diagnosis and surgical treatment of congenital bronchoesophageal fistulae in adults.

Methods: Eleven adult cases of congenital bronchoesophageal fistula diagnosed and treated in our hospital between May 1990 and August 2010 were reviewed. Its clinical presentations, diagnostic methods, anatomic type, treatment, and follow-up were recorded.

View Article and Find Full Text PDF

Objective: To explore the value of partial atrium or large blood vessel resection for the treatment of locally advanced lung cancer.

Methods: Thirty-five patients with locally advanced lung cancer (T(4)N(0)-N(2)M(0)) underwent lobectomy or pneumonectomy combined with intrapericardial vascular management or partial resection of the atrium. Of the 35 patients , 15 underwent left pneumonectomy combined with partial resection of the left atrium, 3 had pneumonectomy and partial resection of pulmonary artery trunk, 11 received right pneumonectomy and partial resection of the left atrium, 3 had middle and lower lobectomies and partial resection of the left atrium, and 3 underwent right upper lobectomy, partial resection of the superior vena cava and replacement of artificial blood vessel.

View Article and Find Full Text PDF

Objective: To investigate the method of early surgical treatment of bronchopleural fistula after pneumonectomy.

Methods: Twelve patients (9 males and 3 females with a mean age of 58.6-/+5.

View Article and Find Full Text PDF

Objective: To study the etiology of influenza-like illness (ILI) in Beijing, and to investigate the impact of antibiotic treatment on outcomes.

Methods: This was a prospective cohort study. Patients with diagnosis of influenza-like illness were prospectively enrolled for study of bacterial and viral pathogens.

View Article and Find Full Text PDF

Objective: To investigate the clinicopathological features and prognosis of bronchial mucoepidermoid carcinoma.

Methods: Twenty-one with mucoepidermoid carcinoma, 16 males and 5 females, aged 40.8 (15 ~ 72) underwent surgical treatment, 13 cases undergoing lobectomy, 3 sleeve lobectomy, 4 pneumonectomy, and 1 case thoracic exploration, from February 1988 to June 2005.

View Article and Find Full Text PDF

Objective: To investigate the value of fluorine-18 fluorodeoxyglucose (FDG)-positron emission tomography (PET) in carcinoma of cardia or fundus of stomach.

Methods: From April 1999 to April 2005, 57 patients with carcinoma of cardia or fundus of stomach were imaged with FDG-PET. FDG-PET imaging were analyzed by visual method combined with semiquantitative analysis.

View Article and Find Full Text PDF

Objective: To assess the value of carbon-11 choline (CH) positron emission tomography (PET) in patients with pulmonary nodules.

Methods: From September 2002 to December 2004, 39 patients with pulmonary nodules were imaged with CH-PET. CH-PET data was analyzed by visual method and semiquantitative method.

View Article and Find Full Text PDF

Objective: To study the clinical characteristics, the principles of diagnosis and surgical treatment for primary pulmonary lymphoma.

Method: Ten patients with primary pulmonary lymphoma were treated surgically and their clinical characteristics, the experiences of clinical diagnosis and surgical treatment were analyzed. The tumors located in left upper lobe in 2, left lower lobe in 1, right upper lobe in 3, right middle lobe in 3 and right lower lobe in 1.

View Article and Find Full Text PDF

Objective: To assess the features of fluorine-18 fluorodeoxyglucose (FDG) uptake in patients with benign pulmonary nodules.

Methods: From October 1998 to July 2004, 47 patients with benign pulmonary nodules were imaged with FDG-positron emission tomography (PET). Diagnoses were confirmed by surgery.

View Article and Find Full Text PDF

An enhanced real-time polymerase chain reaction (ERT-PCR) assay to detect the coronavirus associated with severe acute respiratory syndrome (SARS-Cov) has been designed for detection of SARS-Cov with high sensitivity and easy-to-interpret results, in which a target gene pre-amplification step preceded TaqMan real-time fluorescent PCR. The limit of detection of the ERT-PCR method was 10(-2) higher than the standard real-time PCR assay and 10(-7) higher than conventional PCR methods. The increased sensitivity of the assay would have major benefits in screening suspected SARS patients rapidly and efficiently and may help control the spread of SARS and other infectious diseases during future outbreak.

View Article and Find Full Text PDF

Objective: To assess the clinical feature, diagnosis and treatment of primary pulmonary cryptococcosis.

Methods: From 1996 to 2004, 11 patients with primary pulmonary cryptococcosis were surgical treated and confirmed by histologic study. At the same period, 2715 patients with pulmonary abnormalities received surgery.

View Article and Find Full Text PDF

Objective: To investigate the change of expression of methylthioadenosine phosphorylase (MTAP) gene in patients with non-small cell lung cancer and its clinical significance.

Methods: Thirty fresh samples of cancer with adjacent tissues were collected from 15 patients with lung cancer, 12 males and 8 females, aged 53.6 (38 approximately 72), 8 with squamous cell carcinoma and 7 with adenocarcinoma.

View Article and Find Full Text PDF

Objective: To investigate the value of fluorine-18 fluorodeoxyglucose (FDG)-positron emission tomography (PET) imaging in patients with small cell lung cancer.

Methods: From February 2000 to July 2003, 17 patients with small cell lung cancer were imaged with FDG-PET. FDG-PET scans were analyzed by visual method.

View Article and Find Full Text PDF

Objective: To assess the value of bronchoplastic procedures in surgical treatment for bronchogenic carcinoma.

Methods: Bronchoplastic procedures were performed in 78 patients with bronchogenic carcinoma from August 1976 to December 2002. There were 67 patients with squamous cell carcinoma (86%).

View Article and Find Full Text PDF