BACKGROUND Daily changes in aeroallergens during pregnancy could trigger early labor, but few investigations have evaluated this issue. This study aimed to investigate the association between exposure to aeroallergens during the week preceding birth and the risk of early delivery among preterm and term pregnancies. METHODS We identified data on 225,234 singleton births that occurred in six la...

Allergic diseases are common in clinical practice and are considered by the World Health Organization (WHO) as an important health problem (Liu et al. 2010).Worldwide, about 500 million people are affected (15%) with a prevalence of 20-30% in developed countries (Laaidi et al. 2009). This study aimed to identify the major aeroallergens and their prevalence in a population of patients living in ...

PURPOSE We examined whether fractional exhaled nitric oxide (FeNO) levels are associated with atopy profiles in terms of mono-sensitization and poly-sensitization in asthmatic children. METHODS A total of 119 children underwent an assessment that included FeNO measurements, spirometry, methacholine challenge, and measurement of blood eosinophil count, serum total IgE, and serum eosinophil cat...

BACKGROUND The aerodynamic diameter of biological particles determines their ability to penetrate the human respiratory system. OBJECTIVE To assess the content of allergens less than 10 pm in diameter in the particle fraction of airborne dust in order to improve control of exposure to harmful soybean aeroallergens. METHODS In this study, 98 pairs of particulate matter measuring less than 10...