多伦多的一项研究发现,早期接触狗可能会降低儿童哮喘的风险。 Early dog exposure may reduce asthma risk in children, a Toronto study finds.

根据在多伦多对1 000多名儿童进行的一项研究,在有狗的家中长大的儿童在5岁前患哮喘的风险较低。 Children who grow up in homes with dogs may have a lower risk of developing asthma by age five, according to a Toronto-based study of over 1,000 children. 研究人员分析了3至4个月大的幼儿家中的灰尘样本,测量了狗的F1、猫的Fel D1和内分泌毒素等过敏原。 Researchers analyzed dust samples from homes when children were 3 to 4 months old, measuring allergens like Can f1 from dogs, Fel d1 from cats, and endotoxin. 5岁时,有6.6%的人患有哮喘,但接触较高剂量狗过敏罐f1的人的危险性则低48%,特别是在肺功能不良的遗传风险较高的人中。 At age five, 6.6% had asthma, but those exposed to higher levels of dog allergen Can f1 showed about a 48% lower risk, especially among those with higher genetic risk for poor lung function. 没有发现对猫过敏原或内分泌毒素的任何保护效果。 No protective effect was found for cat allergens or endotoxin. 研究表明,早期接触狗过敏原可能会影响免疫发育,尽管确切的机制不清楚。 The study suggests early exposure to dog allergens may influence immune development, though the exact mechanism is unclear. 调查结果要求事先提出建议,将宠物从处境危险儿童的家中移走,并强调需要进一步研究长期影响。 Findings challenge prior advice to remove pets from homes of at-risk children and highlight the need for further research into long-term effects.