Objective To investigate the incidence of genotypes related to analgesia and muscle relax effects,and to review the genetic polymorphism of OPRM1,CYP3A4 * 1G,SLCO1B1 and ABCB1 in Han population in North-western China.Methods The genotypes of OPRM1,CYP3A4 * 1G,SLCO1B1 and ABCB1 in patients born in North-western China between September,2016 and May,2017 were reviewed.North-western China was defined as Shaanxi,Gansu,Ningxia,Qinghai and Xinjiang Provinces.The distribution of genotypes was recorded.And the differences between male and female patients were compared.Results The frequency was 42.11％ for AG genotype and 12.14％ for GG genotype of OPRM1 (118A＞G).For CYP3A4 * 1G,the frequencies of CC,TT,TC and CT were 29.69％,4.17％,65.67％ and 0.47％,respectively.For ABCB1,the frequencies of CC,TT,TC and CT were 13.07％,44.60％,0.28％ and 42.05％,respectivsly.For SLCO1B1,AG genotype appeared in 37.44 ％ of the patients,GG genotype appeared in 55.21％ of the patients.There was no difference between the male and the female patients.Conclusion Genotypes related to change of susceptibility to opioids including fentanyl and rocuronium were detected in high percentage of patients in North-western China,indicating that SNP assay for instruction of anesthetic practice be of value.

In this study, the effect of heparin-derived oligosaccharide(HDO)on lipopolysaccharides(LPS)-induced inflammation in human umbilical vein endothelial cells(HUVECs)and the molecular mechanisms were investigated. The generation of intracellular reactive oxygen species(ROS)was detected by 20, 70-dichlorofluorescein diacetate(DCFH-DA). Experiment is divided into blank group(0. 5% serum medium), model group(LPS+0. 5% serum medium)and HDO dosing group(LPS+0. 5% serum medium +0. 01, 0. 1, 1mol/L HDO). The intracellular reactive oxygen species level was detected by reactive oxygen species experiment, the level of key regulatory proteins p38 and p-p38 in MAPK pathways and VCAM-1 were determined by Western blot. The results showed that HDO at 0. 01, 0. 1 and 1 μmol/L could inhibit the expression of VCAM-1 in HUVECs induced by 100 μg/mL LPS, and reduce the expression of key regulatory proteins p38 and p-p38, but could not obviously affect NF-κB nuclear translocation. The results all above showed that HDO could decrease the key regulatory proteins expression, and suppress the transcription of VCAM-1, resulting in inhibiting inflammation.

Objective:To investigate the interfering factors in the determination of creatinine(Cr) using the American Clinical Laboratory Standards Association (CLSI) EP7-A3 document.Methods:According to the CLSI EP7-A3 document, fresh serum (no hemolysis, lipemia, and jaundice) was used on the day of the experiment and confirmed the interfering substances through the pairing difference experiment and the point-to-point analysis method was used in the dose effect experiment to clarify the difference of interfering substances.Results:Triglyceride (16.94 mmol/L), dobutamine hydrochloride (4.01 μmol/L), ascorbic acid (298 μmol/L) did not interfere with the determination of Cr. Free bilirubin (684 μmol/L), conjugated bilirubin (684 μmol/L), calcium hydroxybenzene sulfonate (144 μmol/L) and hemoglobin (10 g/L) were used as the maximum concentrations of interferences for the dose effect test, the results showed that the above interferences had negative interference on the determination of Cr.Conclusion:According to EP7-A3, it is valuable to evaluate the interference factors of creatinine determination.