Steve M Stick

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It has been reported that vitamin A alcohol (retinol) inhibits the mutagenicity of certain carcinogenic agents requiring metabolic activation by mammalian microsomal enzymes in the Ames Salmonella assay. We have found that the effect of retinol on the mutagenicity of 2-aminofluorene (2AF), a carcinogen requiring metabolic activation, is complex and(More)
BACKGROUND In patients with type I diabetes mellitus, hypoglycemia occurs commonly during sleep and is frequently asymptomatic. This raises the question of whether sleep is associated with reduced counterregulatory-hormone responses to hypoglycemia. METHODS We studied the counterregulatory-hormone responses to insulin-induced hypoglycemia in eight(More)
OBJECTIVE To determine the effect of nocturnal hypoglycaemia on sleep architecture in adolescents with insulin dependent diabetes mellitus (IDDM). DESIGN 20 adolescents with IDDM (mean age 12.8 years, mean glycated haemoglobin (HbA1c) 8.9%) were studied on one night. Plasma glucose was measured every 30 minutes and cortisol and growth hormone levels every(More)
We aimed to evaluate the efficacy and safety of fluticasone propionate (FP) in children aged 12-47 months with recurrent/persistent asthma symptoms. One hundred and sixty children (12-47 months) were randomised into this multicentre, double-blind, placebo-controlled, parallel-group study, and treated with either FP (100 microg bd) or placebo (2 puffs bd),(More)
RATIONALE Pulmonary inflammation, infection, and structural lung disease occur early in life in children with cystic fibrosis. OBJECTIVES We hypothesized that the presence of these markers of cystic fibrosis lung disease in the first 2 years of life would be associated with reduced lung function in childhood. METHODS Lung function (forced expiratory(More)
We describe an analysis of dynamic behavior apparent in times-series recordings of infant breathing during sleep. Three principal techniques were used: estimation of correlation dimension, surrogate data analysis, and reduced linear (autoregressive) modeling (RARM). Correlation dimension can be used to quantify the complexity of time series and has been(More)
OBJECTIVES To review our management of infants discharged home receiving supplemental oxygen. Stable preterm infants receive low flow O(2) by nasal cannulae aiming for SaO(2) of > or = 95%. Oxygen-dependent infants must pass an air test (ability to maintain SaO(2) > 80% during 4 h disconnection from oxygen) before discharge home with supplemental oxygen. A(More)
This review examines the relations between early childhood lower respiratory symptoms and adult respiratory disease. The problems associated with investigating potential associations between respiratory disease in children and adults are discussed. Some studies have limitations because they are retrospective and early childhood respiratory symptoms have not(More)
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