A retrospective dosimetry study of intensity-modulated radiotherapy for nasopharyngeal carcinoma: radiation-induced brainstem injury and dose-volume analysis.

Background: Radiation therapy is the standard radical treatment for nasopharyngeal carcinoma (NPC) but also causes transient as well as long-term complications. Patients who develop severe radiation-induced brainstem injuries have a poor prognosis due to the lack of effective medical therapies. However, the relationship between brainstem injury and radiation volume dose is unknown.

Serum BMP-2 up-regulation as an indicator of poor survival in advanced non-small cell lung cancer patients.

Purpose: High levels of bone morphogenetic protein (BMPs) have been reported in patients with lung cancer. This study was conducted to assess correlations between serum BMP-2 levels and prognostic outcome in patients with non-small-cell lung cancer (NSCLC).

Methods: Blood samples from 84 patients with advanced NSCLC and 42 healthy controls were analyzed and quantitated for serum BMP-2 levels before and after two cycles of chemotherapy using a commercially available ELISA kit.

Clinical observations on safety of fixed dose rate gemcitabine chemotherapy by intravenous infusion.

Purpose: To observe the safety of fixed dose rate gemcitabine by intravenous infusion (iv-FDR) for cancers.

Methods: From January 1, 2007 to December 31, 2009, four patients who were pathologically diagnosed with advanced pancreatic or breast cancer were recruited into this study. They were treated by gemcitabine 10mg/m2/min iv-FDR on days 1 and 8, and combined with other chemotherapeutics, repeated every four weeks.

Lack of influence of XRCC1 and XPD gene polymorphisms on outcome of platinum-based chemotherapy for advanced non small cell lung cancers.

Purpose: Genetic polymorphisms of DNA repair genes are associated with differential enzyme activity and may help explain interindividual differences in response rates after platinum-based chemotherapy for non small cell lung cancers (NSCLCs). This study was conducted to assess relationships between X-ray repair cross complementing group1 (XRCC1) and xeroderma pigmentosum group D (XPD) genetic polymorphisms and outcome in NSCLC patients.

Methods: From March 1, 2005 to December 31, 2008, the polymerase chain reaction-restriction fragment length polymorphism method was applied to evaluate genetic polymorphisms of the XRCC1 codon399 (Arg/Gln) and XPD codon751 (Lys/Gln) DNA repair genes in 108 patients with stage IIIB and IV NSCLCs treated with platinum-based chemotherapy in the Department of Chemotherapy of Jiangsu Cancer Hospital and Research Institute.