ABSTRACT
The green fluorescent reporter gene was inserted into the gene interval of polymyxin resistant mcr-1-carrying plasmid (pSH13G841) by homologous recombination of suicide plasmid. At the same time, E. coli J53 with red fluorescent reporter gene was constructed. Using the ability of spontaneous conjugation of drug resistant plasmid (pSH13G841), pSH13G841-GFP plasmid was transferred into J53 RFP bacteria to construct a double fluorescent labeled donor bacterium. The two light-emitting systems could stably and spontaneously express fluorescence without mutual interference. The dual fluorescence report system constructed can be used for visual tracing horizontal transfer of mcr-1-carrying plasmid, the subsequent model can study the colonization, transfer and prognosis of drug-resistant bacteria/drug-resistant genes mcr-1 by using mouse in vivo imaging technology.
ABSTRACT
Objective: To explore the changes of inflammatory factors and related factors in the population with overweight combining abdominal obesity and high-normal blood pressure (BP). Method: Our research included in 2 groups: Group A: n=189 subjects with high-normal BP, overweight and abdominal obesity, their BMI ≥ 24 kg/m2, waist circumference (WC) ≥ 90 cm in male, WC ≥ 85 cm in female, SBP(120-139) mmHg or DBP (80-89) mmHg; Group B, n=87 healthy subjects with matched age, BMI < 24 kg/m2, BP < 120/80 mmHg as normal control. Blood lipids and other biochemical parameters were examined; serum levels of intercellular adhesion molecule-1 (ICMA1), monocyte chemoattractant protein-1 (MCP1), chemokines-1 (CXCL-1), CXCL-2 and oxidized low density lipoprotein (oxLDL) were measured by ELISA. Results: Compared with Group B, Group A had increased TG, fasting blood glucose and non-HDL-C, all P<0.05; elevated serum levels of ICMA1 and MCP1, both P<0.05. Correlation analysis indicated that in Group A, ICMA1 was positively related to BMI, SBP, LDL-C and negatively related to age, which had gender difference; MCP1 was positively related to WC, SBP, LDL-C, non-HDL-C and negatively related to HDL-C, which also had gender difference; oxLDL was positively related to SBP, LDL-C; no evidence showed that CXCL-1 and CXCL-2 were related to obesity, BP and metabolic parameters; in Group B, no evidence showed that inflammatory factors were related to the other parameters. Linear regression analysis for inflammatory parameters found that after excluding other factors, in Group A, ICMA1 was positively related to BMI (t=2.901, P=0.005); in male gender, MCP1 was positively related to SBP (t=5.076, P=0.000), negatively related to DBP (t=-3.369, P=0.001). oxLDL was positively related to age (t=2.168, P=0.032) and LDL-C (t=2.146, P=0.034); CXCL-1 was negatively related to HDL-C (t=-2.013, P=0.047). Conclusion: The subjects with overweight abdominal obesity and high-normal BP were usually having abnormal metabolism of glucose and lipids, elevated serum levels of inflammatory parameters, blood levels of inflammatory factors were increasing with elevated BMI and SBP accordingly which implied the association with critical range of BP.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the relationship between microalbuminuria and arterial compliance in hypertensive and diabetes patients.</p><p><b>METHODS</b>A total of 200 patients with essential hypertension and/or diabetes were studied. Albumin/creatinine ratio (ACR) was determined. Carotid to femoral Pulse Wave Velocity (PWV), C(1) and C(2) were measured by a Complier Colson device and DO-2020, respectively.</p><p><b>RESULT</b>(1) C(1) and C(2) were lower and PWV higher in high ACR group than in normal ACR group (P < 0.01). (2) In patients younger than 60 years, C(1) was lower and PWV higher in high ACR group than that in normal ACR group (P < 0.01). In patients older than 60 years, C(1), C(2) were lower in high ACR group than in normal ACR group.</p><p><b>CONCLUSION</b>The results indicated that compliance of large and small vessels in hypertensive and diabetic patients decreased with increasing ACR.</p>