“…Studies conducted on Turkish, Danish and Russian populations revealed a strong association between TLR4 and atopic bronchial asthma (Sac ßkesen et al, 2005;Kerkhof et al, 2010;Voronko et al, 2011), while other studies on Finnish, Tunisian, Norwegian, Chinese and Caucasian populations showed lack of association with the disease (Adjers et al, 2005;Smit et al, 2007;Lachheb et al, 2008;Bjornvold et al, 2009;Zhang et al, 2011;Hussein et al, 2012).…”