ABSTRACT
Objective To investigate the distribution of blaOXA-51-like genes and the clonal relation-ship among Acinetobacter baumannii strains isolated from three teaching hospitals in Guangzhou , China. Methods Fifty-two Acinetobacter baumannii isolates were genotyped by multilocus sequence typing (MLST).eBURST algorithm was performed to define clonal complexes (CCs).blaOXA-51-like genes were am-plified by using polymerase chain reaction ( PCR) and sequenced .Results MLST grouped the A.bauman-nii isolates into 5 existing sequence types (STs) and 7 new STs.STn4 carried allele G1 with a T→C muta-tion at the 3rd nucleotide site (nt3) on the gpi111 locus.STn5 carried allele A1, possessing A→C muta-tions at nt156 and nt159 on the gltA1 locus.ST195 and ST208 accounted for 69.2%of all isolates.Clonal relationship analysis showed that ST 195 and ST208 belonged to CC92.Fifty-one A.baumannii isolates car-ried OXA-66 and the rest one carried OXA-199.Conclusion A.baumannii strains that belonged to CC92 and carried OXA-66 were the predominant genotype circulating in Guangzhou , China.
ABSTRACT
Objective To evaluate HCC family history on recurrence and survival of HCC patients after curative hepatectomy. Methods The family history,postoperative recurrence rate,1,2 and 5 year survival rate of 79 HCC patients who received surgical resection were collected.Patients were divided into two groups:34 cases in familial aggregation HCC group (FH group ) and 45 cases in non- familial aggregation HCC group (NH group).All these HCC patients were followed up for 3 months to10 years after surgery,and the median follow-up period was 48.5 months.We analyzed the survival rate of HCC patients by Kaplan -Meier survival curve to compare the postoperative recurrence rate and survival rate between two groups. Results 34 cases of HCC probands came from 33 families,and there were 104 cases of HCC patients in these families,an average of 3.2 cases per family.There were 6 families in which 3 or more cases developed HCC,and there were 13 families in which father or (and) mother had HCC accounting for 39.4％.The six months,1 year,2 year posthepatectomy recurrence rate in FH group was 15.1％,22.3％,40.1％,significantly higher than NH group of 10.3％,17.4％,25.6％ (x2 =5.762,6.434,5.987,P ＜0.05),and 1,2,5 year's survival rate in FH group was 57％,46％,40.3％,much lower than NH group of 85.3％,75.2％ and61.5％ (x2 =8.986,9.765,7.634,P＜0.05). Conclusions Family history of HCC affects the prognosis of HCC patients after surgery. Patients with HCC family history have higher postoperative recurrence rate and worse prognosis than that of patients who do not have HCC family history.