ABSTRACT
<p><b>OBJECTIVE</b>To explore the correlation between MBL ExonI 54 and NFκB1-94ins/del ATTG polymorphism and fever during neutropenia in patients with acute leukaemia (AL) (except M3) after first chemotherapy in Chinese Han population.</p><p><b>METHODS</b>Blood samples obtained from 76 fever patients with AL during neutropenia episodes were detected to analyse single nucleotide polymorphism (SNP) in the MBL ExonI 54 and NFκB1-94ins/del ATTG gene, and analyse the correlation between above-mentioned 2 polymorphisms and fever during neutropenia of AL patients after chemotherapy.</p><p><b>RESULTS</b>In 76 patients, no correlation were found between MBL ExonI 54 and NFκB1-94ins/del ATTG polymorphism and fever during neutropenia in patients with acute leukaemia after chemotherapy (P > 0.05). No significant relation were found in sex, age, underlying disease, disease status or degrees of neutropenia in febrile neutropenia between MBL ExonI 54 and NFκB1-94ins/del ATTG polymorphism (P > 0.05). However, patients with MBL ExonI 54 mutation presented longer febrile duration with a median of 5 days compared to 3 days of patients with wildtype MBL ExonI 54 genotype (P < 0.05).</p><p><b>CONCLUSIONS</b>There is no clear correlation between MBL ExonI 54 and NFκB1-94ins/del ATTG polymorphism and fever during neutropenia in patients with acute leukaemia after chemotherapy. However, the patients with MBL ExonI 54 mutation have been observed to present a longer febrile duration.</p>