Adjuvant effect of di-(2-ethylhexyl) phthalate on asthma-like pathological changes in ovalbumin-immunised rats
2008
Abstract Pollution of phthalates, including di-(2-ethylhexyl)phthalate (DEHP), is widespread because of their use in plastics and other daily consumer products. Epidemiological studies have shown that the largest source of general population exposure to DEHP is on dietary. Studies have suggested an association between exposure to phthalate plasticisers, and increased prevalence of asthma. To investigate the adjuvant effect of DEHP on asthmatic pathological changes in ovalbumin-immunised rat model. Wistar rats were randomly divided into five groups (eight rats of each group): (1) saline; (2) ovalbumin (OVA); (3) OVA+DEHP 0.7mg·kg−1·d−1; (4) OVA+DEHP 70 mg·kg−1·d−1; and (5) DEHP 70 mg·kg−1·d−1. DEHP treatment groups which were administered to 0.7 mg and 70 mg DEHP/kg/d by gastric gavage for 30d before and during the process of OVA immunisation or saline treatment. The in vivo pulmonary function analysis, bronchoalveolar lavage (BAL) fluid collection and section histological observation were conducted. DEHP ...
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