American journal of respiratory and critical care medicine
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Am. J. Respir. Crit. Care Med. · Jan 2012
Randomized Controlled Trial Multicenter StudyFosfomycin/tobramycin for inhalation in patients with cystic fibrosis with pseudomonas airway infection.
Fosfomycin/tobramycin for inhalation (FTI), a unique, broad-spectrum antibiotic combination, may have therapeutic potential for patients with cystic fibrosis (CF). ⋯ FTI maintained the substantial improvements in FEV(1) % predicted achieved during the AZLI run-in and was well tolerated. FTI is a promising antipseudomonal therapy for patients with CF.
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Am. J. Respir. Crit. Care Med. · Jan 2012
Randomized Controlled Trial Comparative StudyDiesel exhaust exposure and nasal response to attenuated influenza in normal and allergic volunteers.
Diesel exhaust enhances allergic inflammation, and pollutants are associated with heightened susceptibility to viral respiratory infections. The effects of combined diesel and virus exposure in humans are unknown. ⋯ Short-term exposure to diesel exhaust leads to increased eosinophil activation and increased virus quantity after virus inoculation in those with allergic rhinitis. This is consistent with previous literature suggesting a diesel "adjuvant" effect promoting allergic inflammation, and our data further suggest this change may be associated with reduced virus clearance.Clinical trial registered with www.clinicaltrials.gov (NCT00617110).
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Vitamin D deficiency and asthma are common conditions that share risk factors such as African American ethnicity, inner-city residence, and obesity. This review provides a critical examination of current experimental and epidemiologic evidence of a causal association between vitamin D status and asthma or asthma morbidity, including potential protective mechanisms such as antiviral effects and enhanced steroid responsiveness. Because most published epidemiologic studies of vitamin D and asthma or asthma morbidity are observational, a recommendation for or against vitamin D supplementation as preventive or secondary treatment for asthma is not advisable and must await results of ongoing clinical trials. Should these trials confirm a beneficial effect of vitamin D, others will be needed to assess the role of vitamin D supplementation to prevent or treat asthma in different groups such as infants, children of school age, and ethnic minorities.