[Investigation on the hosts with natural Paragonimus infection and species identification in Jinhua Prefecture of Zhejiang Province].

Objective: To investigate the natural hosts infected with Paragonimus sp. and identify the species of the parasite in selected counties/districts of Jinhua prefecture in Zhejiang Province.

Methods: Three townships/towns were randomly sampled from each of the 9 counties/districts in Jinhua as pilot spots for the survey.

[CRTH2 antagonist ameliorates airway inflammation in rats with asthma].

Objective: To investigate the effect of prostaglandin D2 receptor antagonists on the airway inflammation in rats with asthma.

Methods: Forty male SD rats were randomly divided into four groups: Group A (normal control), Group B (asthma group), Group C (CRTH2 antagonist BAYu3405 treatment group), Group D (DP1 antagonist BWA868C treatment group). Asthma was induced by ovalbumin (OVA) challenge.