1.Clinical features of 21 pregnant women with scrub typhus
Cuiping WU ; Xiangang CAO ; Dequan XIA
Chinese Journal of General Practitioners 2010;9(2):128-129
Clinical data of 21 pregnant women with scrub typhus were analyzed retrospectively.They all had fever,13 of them with lymph nodes enlargement,12 with skin rashes,11 with eschar or ulcer,and 20 positive with Weil-Felix reaction.Oxytetracycline was given in 17 of them and other four were treated by azithromycin,with all cured.Seven of them gave natural childbirth at the 37th week of gestation,nine were aborted inductively,three aborted spontaneously and two delivered premature births.Scrub typhus was harmful to both pregnant women and their fetuses,early diagnosis and treatment are necessary for patients with it for avoiding exacerbation and reducing fatality.
2.Expression of the ERG11 gene in fluconazole-resistant Trichosporon asahii
Xiao DING ; Zhikuan XIA ; Dequan ZHANG ; Rongya YANG
Chinese Journal of Dermatology 2017;50(5):355-359
Objective To investigate the role of the ERG11 gene in the drug resistance of Trichosporon asahii (T.asahii), and to explore the relationship between the gene expression and drug concentrations. Methods Stable fluconazole-resistant strains of T.asahii were induced in vitro following exposure to a series of concentrations of fluconazole. Fluconazole-sensitive and-resistant strains of T.asahii were separately cultured in the medium containing fluconazole at concentrations of 0, 0.25, 0.5, 1, 2, 4, 8, 16, 32 and 64 μg/ml. Real-time quantitative PCR was performed to determine the mRNA expression of ERG11 gene. Results In fluconazole-free medium, the fluconazole-resistant strain of T.asahii showed significantly increased mRNA expression of the ERG11 gene compared with the fluconazole-sensitive strain (7.542 ± 5.311 vs. 1.014 ± 0.012, t=3.002, P=0.03). Additionally, the mRNA expression of ERG11 gene was also significantly higher in the fluconazole-resistant strains than the fluconazole-sensitive strains in the culture medium containing fluconazole at different concentrations of 0.25 (9.183 ± 3.226 vs. 3.281 ± 2.068), 0.5(13.657 ± 5.428 vs. 3.459 ± 1.923), 1(15.292 ± 7.007 vs. 3.242 ± 2.530), 2(13.720 ± 8.550 vs. 3.651 ± 0.728), 4(13.949 ± 2.960 vs. 3.969 ± 1.924)and 8(13.123 ± 6.429 vs. 3.824 ± 1.875)μg/ml(all P<0.05). However, no significant correlation was observed between the mRNA expression of ERG11 gene and fluconazole concentrations(fluconazole-resistant strains: rs = 0.229, P = 0.096; fluconazole-sensitive strains:rs=0.166, P=0.357). Conclusion Overexpression of ERG11 gene is associated with fluconazole resistance in T.asahii, but there is no correlation between the mRNA expression of ERG11 gene and fluconazole concentrations.