Steven M. Butler

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We determined levels of thiobarbituric acid-reactive substances (TBARS), a measure of lipid peroxidation, and the activity of the antioxidant enzymes superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), glutathione reductase (GSSG-R), and catalase (CAT) in the amygdala, hippocampus, pyriform cortex, superior and middle temporal gyri, inferior(More)
BACKGROUND For women with ductal carcinoma in situ (DCIS) of the breast, the risk of developing an ipsilateral breast event (IBE; defined as local recurrence of DCIS or invasive carcinoma) after surgical excision without radiation is not well defined by clinical and pathologic characteristics. METHODS The Oncotype DX breast cancer assay was performed for(More)
Rats were trained in a two-way shuttle shock avoidance task, 20 trials per day for 5 consecutive days. In Experiment 1, groups were subjected to selective paradoxical sleep deprivation (PSD) for daily 4 hour periods. It was found that only PSD applied between 9-12 hours or 17-20 hours after the daily training sessions resulted in acquisition deficits. These(More)
Case-control studies have shown right hemisphere specialization in the production of intonation in speech. We examined spontaneous prosody in audiotapes of interviews with a 77-year-old right-handed woman recorded 6 months before and 6 weeks after she suffered a stroke affecting the right frontotemporo-parietal regions and the right basal ganglia.(More)
OBJECTIVES To characterize the rate of decline of forced expiratory volume in 1 second (FEV(1)) in children and adolescents with cystic fibrosis and to identify and compare risk factors associated with FEV(1) decline. STUDY DESIGN The rate of decline in FEV(1)% predicted over 3 to 6 years in 3 different age groups was determined. Risk factors for decline(More)
Validated biomarkers are needed to improve risk assessment and treatment decision-making for women with ductal carcinoma in situ (DCIS) of the breast. The Oncotype DX® DCIS Score (DS) was shown to predict the risk of local recurrence (LR) in individuals with low-risk DCIS treated by breast-conserving surgery (BCS) alone. Our objective was to confirm these(More)
OBJECTIVE To determine the relation of growth and nutritional status to pulmonary function in young children with cystic fibrosis (CF). STUDY DESIGN The relation of weight-for-age (WFA), height-for-age (HFA), percent ideal body weight (%IBW), and signs of lung disease at age 3 years with pulmonary function at age 6 years was assessed in 931 patients with(More)
The clinical characteristics most relevant to the decision to treat for a pulmonary exacerbation with antibiotics in cystic fibrosis patients were determined. Variables including age, increased cough frequency and sputum production, new crackles and wheezing, asthma, symptomatic sinusitis, hemoptysis, decreased lung function, weight loss, and new(More)
CONTEXT Guidelines for managing cystic fibrosis (CF) patients have been widely circulated, but little is known about the variations in practice between sites and their association with outcomes. OBJECTIVE To determine whether differences in lung health existed between groups of patients attending different CF care sites and to determine whether these(More)
Protein adsorption has been implicated in the variability of drug release from biodegradable microspheres. We used optical reflectometry to measure the extent and kinetics of bovine serum albumin (BSA) adsorption to smooth spin-cast films prepared from two poly(lactide-co-glycolide) (PLG) samples that have different end-groups, one being a hydrophilic(More)