OBJECTIVE To evaluate bronchial challenges using three different stimuli as screening tools for bronchial hyper-responsiveness in sulfur mustard gas-induced asthma. DESIGN Randomized, cross-over clinical study. SETTING University hospital. PATIENTS Eighteen veterans with mustard gas-induced asthma and 18 normal veterans as the control group. INTERVENTION Pulmonary function tests and inh...

FIG. 9. Direct contact photography of Armillaria mellea hyphae by its own light. Kodak Microfile, 3-hr exposure. Negative photomicrographed; figutre constitutes a negative print. Arrows indicate clamp connections. X 1,200. FIG. 10. Direct contact photography of Armillaria mellea by its own light. Polaroid Type 55 P/N filn, 30-min exposure. Negative photomicrographed on Microfile film, figuire c...

Haemolymph from late third-instar larvae of the blowflies Calliphora sp. (Karlson & Schweiger, 1961 ; Thomson & Sin, 1970) and Lucilia cuprina (Hackman & Goldberg, 1967) contains phenol oxidase in an inactive or proenzyme form. The anterior end of a late third-instar Sarcophaga larva was pricked with a fine pin and the haemolymph released (approx. 5 0 ~ 1 ) was collected in an ice-cold tube. By...

The impact of tree litter on soil chemistry leachate and sulfurous substrates of mine soils from former Jeziórko sulfur mine was investigated. Composites were used: soil substrate (less contaminated at mean 5090 mg kg-1 S or high contaminated at 42,500 mg kg-1 S) + birch or pine litter and control substrate (no litter). The composites were rinsed with distilled water over 12 weeks. In the obtai...

We have measured the airway responses to methacholine on three days in sixteen non-asthmatic subjects. On the first day the methacholine challenge alone was performed. The other two days were randomized between pretreatment with distilled water or hypertonic saline administered by ultrasonic nebulizer. Distilled water and hypertonic saline did not affect baseline specific conductance (sGaw). Pr...