目的观察苍附导痰汤加二甲双胍联合穴位埋线对肥胖型多囊卵巢综合征(polycystic ovary syndrome,PCOS)不孕症患者免疫功能及肠道菌群的影响。方法选取肥胖型PCOS不孕症120例,采用随机数字表法随机将其分为观察组和对照组两组各60例,其...目的观察苍附导痰汤加二甲双胍联合穴位埋线对肥胖型多囊卵巢综合征(polycystic ovary syndrome,PCOS)不孕症患者免疫功能及肠道菌群的影响。方法选取肥胖型PCOS不孕症120例,采用随机数字表法随机将其分为观察组和对照组两组各60例,其中84例顺利完成研究,观察组40例,对照组44例。观察组采用苍附导痰汤加二甲双胍联合穴位埋线进行治疗,对照组采用苍附导痰汤加二甲双胍进行治疗,均治疗12周。比较两组治疗前后T细胞免疫应答指标、胰岛素抵抗指标和肠道菌群情况,并观察两组治疗期间不良反应发生情况。结果治疗前,两组T细胞免疫应答指标、胰岛素抵抗指标及肠道菌群情况比较差异均无统计学意义(P>0.05)。治疗后,两组血清转化生长因子-β1(TGF-β1)、白细胞介素-10(IL-10)水平及乳酸杆菌、双歧杆菌均较治疗前升高;血清白细胞介素-17(IL-17),空腹血糖(FBG)、餐后2 h血糖(2 h PBG)、空腹胰岛素(FINS)、稳态模型胰岛素抵抗指数(HOMA-IR)水平,以及肠杆菌均较治疗前降低,差异有统计学意义(P<0.01)。治疗后,观察组血清TGF-β1、IL-10水平及乳酸杆菌、双歧杆菌高于对照组;血清IL-17,FBG、2 h PBG、FINS、HOMA-IR水平,以及肠杆菌低于对照组,差异有统计学意义(P<0.01)。治疗期间,观察组出现皮疹5例,因埋线导致皮肤红肿1例;对照组出现皮疹5例。结论苍附导痰汤加二甲双胍联合穴位埋线应用于肥胖型PCOS不孕症可以减少胰岛素抵抗、纠正Treg/Th17失衡、调节T细胞免疫应答、改善肠道微生物稳态失衡,且不良反应较少。展开更多
Objective To investigate the status of the drug resistance and the ampC gene expression of Enterobacter cloacae . Methods Disk diffusion tests were made for detecting the susceptibility of antimicrobial agents agai...Objective To investigate the status of the drug resistance and the ampC gene expression of Enterobacter cloacae . Methods Disk diffusion tests were made for detecting the susceptibility of antimicrobial agents against Enterobacter cloacae . AmpC gene was amplified by polymerase chain reaction (PCR) and verified by DNA sequencing. AmpC gene expression was analyzed according to antimicrobial agent sensitive phenotype. Results The sensitivity rates of 144 strains to imipenam,cefepime and cefoperazone/sulbactam were 98.61%,65.97% and 63.89%,respectively. The sensitivity rates of 144 strains to other antimicrobial agents were lower. Among the 144 strains 120 were found to be positive by PCR for ampC. The PCR product showed high homology to the GenBank ampC sequence. Stably derepressed strains,hyperinducible strains and unexpressing or lower level expressing strains accounted for 30.0% (36/120),37.5% (45/120),and 32.5% (39/120),respectively. Fifty-six out of 120 strains (46.67%) also produced extended spectrum β-lactamases (ESBLs). The hyperinducible strains were highly sensitive to all the antimicrobial agents except amoxicillin/clavulanic acid and cefuroxime,while the stably derepressed strains were only sensitive to imipenam and cefepime. However,sensitivity to cefepime decreased if the strains also produced ESBLs. Conclusions The durg resistant status of Enterobacter cloacae is severe. Clearing out the expressive status of ampC gene will be helpful in selection of antimicrobial agents in the treatment of clinical infection.展开更多
This study focused on the screening of cadmium-resistant bacterial strains from Pb-Zn tailing. We investigated the diversity of microbial community inhabiting Dong-san-cha Pb-Zn tailing in Beijing, China, by polymeras...This study focused on the screening of cadmium-resistant bacterial strains from Pb-Zn tailing. We investigated the diversity of microbial community inhabiting Dong-san-cha Pb-Zn tailing in Beijing, China, by polymerase chain reaction-denaturing gradient gel electrophoresis （DGGE） of 16S rRNA gene of bacterial strain, and found two dominant strains in the DGGE profile. Using special culture media, we isolated two strong cadmium-resistant bacterial strains. On the basis of morphological, physiological, and biochemical characteristics, BIOLOG, and 16S rDNA sequencing, the two strains were identified as Bacillus cereus and Enterobacter cloacae. Minimal inhibitory concentrations （MICs） of heavy metals for the bacteria were determined. E. cloacae showed higher MIC values for heavy metals and a larger range of antibiotic resistance than B. cereus.展开更多
文摘目的观察苍附导痰汤加二甲双胍联合穴位埋线对肥胖型多囊卵巢综合征(polycystic ovary syndrome,PCOS)不孕症患者免疫功能及肠道菌群的影响。方法选取肥胖型PCOS不孕症120例,采用随机数字表法随机将其分为观察组和对照组两组各60例,其中84例顺利完成研究,观察组40例,对照组44例。观察组采用苍附导痰汤加二甲双胍联合穴位埋线进行治疗,对照组采用苍附导痰汤加二甲双胍进行治疗,均治疗12周。比较两组治疗前后T细胞免疫应答指标、胰岛素抵抗指标和肠道菌群情况,并观察两组治疗期间不良反应发生情况。结果治疗前,两组T细胞免疫应答指标、胰岛素抵抗指标及肠道菌群情况比较差异均无统计学意义(P>0.05)。治疗后,两组血清转化生长因子-β1(TGF-β1)、白细胞介素-10(IL-10)水平及乳酸杆菌、双歧杆菌均较治疗前升高;血清白细胞介素-17(IL-17),空腹血糖(FBG)、餐后2 h血糖(2 h PBG)、空腹胰岛素(FINS)、稳态模型胰岛素抵抗指数(HOMA-IR)水平,以及肠杆菌均较治疗前降低,差异有统计学意义(P<0.01)。治疗后,观察组血清TGF-β1、IL-10水平及乳酸杆菌、双歧杆菌高于对照组;血清IL-17,FBG、2 h PBG、FINS、HOMA-IR水平,以及肠杆菌低于对照组,差异有统计学意义(P<0.01)。治疗期间,观察组出现皮疹5例,因埋线导致皮肤红肿1例;对照组出现皮疹5例。结论苍附导痰汤加二甲双胍联合穴位埋线应用于肥胖型PCOS不孕症可以减少胰岛素抵抗、纠正Treg/Th17失衡、调节T细胞免疫应答、改善肠道微生物稳态失衡,且不良反应较少。
文摘Objective To investigate the status of the drug resistance and the ampC gene expression of Enterobacter cloacae . Methods Disk diffusion tests were made for detecting the susceptibility of antimicrobial agents against Enterobacter cloacae . AmpC gene was amplified by polymerase chain reaction (PCR) and verified by DNA sequencing. AmpC gene expression was analyzed according to antimicrobial agent sensitive phenotype. Results The sensitivity rates of 144 strains to imipenam,cefepime and cefoperazone/sulbactam were 98.61%,65.97% and 63.89%,respectively. The sensitivity rates of 144 strains to other antimicrobial agents were lower. Among the 144 strains 120 were found to be positive by PCR for ampC. The PCR product showed high homology to the GenBank ampC sequence. Stably derepressed strains,hyperinducible strains and unexpressing or lower level expressing strains accounted for 30.0% (36/120),37.5% (45/120),and 32.5% (39/120),respectively. Fifty-six out of 120 strains (46.67%) also produced extended spectrum β-lactamases (ESBLs). The hyperinducible strains were highly sensitive to all the antimicrobial agents except amoxicillin/clavulanic acid and cefuroxime,while the stably derepressed strains were only sensitive to imipenam and cefepime. However,sensitivity to cefepime decreased if the strains also produced ESBLs. Conclusions The durg resistant status of Enterobacter cloacae is severe. Clearing out the expressive status of ampC gene will be helpful in selection of antimicrobial agents in the treatment of clinical infection.
基金Project supported by the National Natural Science Foundation of China(No. 20477051, 20521140076).
文摘This study focused on the screening of cadmium-resistant bacterial strains from Pb-Zn tailing. We investigated the diversity of microbial community inhabiting Dong-san-cha Pb-Zn tailing in Beijing, China, by polymerase chain reaction-denaturing gradient gel electrophoresis （DGGE） of 16S rRNA gene of bacterial strain, and found two dominant strains in the DGGE profile. Using special culture media, we isolated two strong cadmium-resistant bacterial strains. On the basis of morphological, physiological, and biochemical characteristics, BIOLOG, and 16S rDNA sequencing, the two strains were identified as Bacillus cereus and Enterobacter cloacae. Minimal inhibitory concentrations （MICs） of heavy metals for the bacteria were determined. E. cloacae showed higher MIC values for heavy metals and a larger range of antibiotic resistance than B. cereus.
