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PURPOSE Epidermal growth factor receptor (EGFR) mutations related to gefitinib responsiveness in non-small cell lung cancer have been found recently. Detection of EGFR mutations has become an important issue for therapeutic decision-making in non-small cell lung cancer. EXPERIMENTAL DESIGN Mutational analysis of the kinase domain of EGFR coding sequence(More)
Immune aberrations have been demonstrated in tumorogenesis, and myeloid-derived suppressor cells (MDSC) have shown to play a pivotal role in mediating immune suppression in animal models of human tumors. In the present study, we explored the clinical relevance of CD11b+/CD14−/CD15+/CD33+ MDSCs and the association of MDSCs with CD8+ cytotoxic T lymphocytes(More)
OBJECTIVES To revalidate a means of assessing delirium in intensive care unit patients and to investigate the independent effect of delirium on the mortality of mechanically ventilated patients. DESIGN A prospective cohort study. SETTING A 37-bed medical intensive care unit of a tertiary care hospital. PATIENTS Subjects were 102 of 131 consecutive(More)
Nitric oxide (NO) plays an important role in resistance to Mycobacterium tuberculosis infection. Our aim was to determine whether inducible NO synthase (iNOS) expression and generation of reactive nitrogen intermediates (RNI) by alveolar macrophages (AM) are increased in patients infected with M. tuberculosis. NO levels in the exhaled air of 19 active(More)
RATIONALE Myeloid-derived suppressor cells (MDSCs) are a heterogeneous family of myeloid cells that suppress T-cell immunity in tumor-bearing hosts. Their clinical relevance remains unclear. OBJECTIVES To identify subtypes of myeloid-derived suppressor cells in patients with non-small cell lung cancer (NSCLC) and their clinical relevance. METHODS(More)
We evaluated whether a goal-directed protocol, without measurement of central venous oxygen saturation, would improve survival in medical intensive care unit (ICU) patients with septic shock. This is a prospective, controlled study in a 24-bed medical ICU at a tertiary care hospital. From a total of 241 consecutive patients with septic shock, 224 were(More)
Mutational analysis was performed in the kinase domain (exons 18-21) of the EGFR gene on tumor tissues of 65 non-small cell lung cancer (NSCLC) patients who had received gefitinib monotherapy. The association between EGFR gene mutation, gefitinib treatment response, and the overall survival were evaluated. In total, EGFR mutations with complex patterns were(More)
1. We studied the effect of capsaicin and sensory neuropeptides on tracheal goblet cell secretion in anaesthetized guinea-pigs using a semi-quantitative morphometric technique whereby the magnitude of discharge of stained intracellular mucus, expressed as a mucus score (MS), was related inversely to discharge. 2. Capsaicin (i.v.) induced goblet cell(More)
The sequestration of neutrophils in the lung and the release of proinflammatory mediators, including neutrophil elastase, are responsible for sepsis-induced microvascular permeability and alveolar epithelial cell damage. To assess the underlying mechanism, human neutrophil elastase (0.01-0.5 microg/ml) was added to cultured A549 epithelial cells in the(More)
RATIONALE A proportion of patients with asthma present with chronic airflow obstruction (CAO). We hypothesized that this effect may result from increased activity of circulating fibroblast-like progenitor cells (fibrocytes) that could home to the airway mucosal wall. OBJECTIVES To compare the proportion, proliferation, and differentiation of circulating(More)