Correlation between the polymorphism ofβ2-AR and the labor progress after labor analgesia / 临床麻醉学杂志

Objective To investigate the distribution ofβ2-adrenergic receptor (β2-AR)genetic polymorphisms among the included parturient women and observe the relationship between the genetic polymorphisms and labor progress after labor analgesia.Methods A prospective observational study was conducted from March to June in 2014 at Nanjing Maternity and Child Health Care Hospi-tal.A total of 1 65 nulliparous women were enrolled in the study,and finally 1 52 patients were includ-ed after exclusion for several reasons.Theβ2-AR gene polymorphic variations at nucleotides encoding amino acids 1 6 and 27 were detected by polymerase chain reaction-restriction fragment length poly-morphism technique.And the demographic data,rate of oxytocin usage,length of labor progress and the incidence of cesarean section after labor analgesia were observed and recorded.Results The allele frequencies ofβ2-AR genetic polymorphism in the parturient women were dominantly presented in the form of Arg1 6Arg (AA)and Arg1 6Gly (AG)at 1 6 position and Gln27Gln(CC)at 27 position respec-tively.The demographic and background characteristics of the subjects didn’t present any significant differences among the groups with differentβ2-AR genetic polymorphism.And the differences of labor progress among β2-AR 27 genetic polymorphisms parturient women were not significant.However, the length of the first stage and the total labor progress in the β2-AR Arg1 6Arg homozygous were both significantly longer than that in the other two groups (P <0.05),and the incidence of cesarean section was also significantly higher (P <0.05 ).Furthermore,we also found that β2-AR Arg1 6Arg homozygous was related to cesarean delivery after labor analgesia through multivariate logistic regres-sion analysis (OR 2.87,95%CI 2.69-3.09).Conclusion The labor progress of the parturient women with β2-AR Arg1 6Arg homozygous is relatively slower,which maybe an important risk for the nullip-arous women transforming to cesarean delivery after labor analgesia.

Regular intermittent bolus provides similar incidence of maternal fever compared with continuous infusion during epidural labor analgesia

To compare the effects of regular intermittent bolus versus continuous infusion for epidural labor analgesia on maternal temperature and serum interleukin-6 [IL-6] level. This randomized trial was performed in Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu Province, China between October 2012 and February 2014. Either regular intermittent bolus [RIB, n=66] or continuous infusion [CI, n=66] was used for epidural labor analgesia. A bolus dose [10 ml of 0.08% ropivacaine + 0.4 microg·ml[-1] sufentanil] was manually administrated once an hour in the RIB group, whereas the same solution was continuously infused at a constant rate of 10 ml·h[-1] in the CI group. Maternal tympanic temperature and serum IL-6 level were measured hourly from baseline to one hour post partum. The incidences of fever [>/= 38°C] were calculated. The incidence of maternal fever was similar between the 2 groups. There was a rising trend in mean temperature over time in both groups, but no statistical difference was detected between the groups at respective time points; maternal serum IL-6 showed similar changes. Compared with continuous infusion, regular intermittent bolus presents with the same incidence of maternal fever for epidural labor analgesia. Interleukin-6 elevation could be involved in mean maternal temperature increase

Culture supernatants of breast cancer cell line MDA-MB-231 treated with parthenolide inhibit the proliferation, migration, and lumen formation capacity of human umbilical vein endothelial cells / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Parthenolide has been tested for anti-tumor activities, such as anti-proliferation and pro-apoptosis in recent studies. However, little is known about its role in the process of tumor angiogenesis. This study aims to investigate the effects and potential mechanisms of parthenolide on the proliferation, migration and lumen formation capacity of human umbilical vein endothelial cells.</p><p><b>METHODS</b>Different concentrations of parthenolide were applied to the human breast cancer cell line MDA-MB-231 cells. After 24-hour incubation, the culture supernatants were harvested and used to treat human umbilical vein endothelial cells for 24 hours. Then an inverted fluorescence phase contrast microscope was used to evaluate the human umbilical vein endothelial cells. The secretion of vascular endothelial growth factor (VEGF), interleukin (IL)-8 and matrix metalloproteinases (MMP)-9 in the culture supernatant of the MDA-MB-231 cells was then measured with enzyme-linked immunosorbent assay (ELISA) assays.</p><p><b>RESULTS</b>Suppression of proliferation, migration, and the lumen formation capacity of human umbilical vein endothelial cells was observed in the presence of the culture supernatants from the breast cancer cell line treated with different concentrations of parthenolide. Parthenolide decreased the levels of the angiogenic factors MMP-9, VEGF, and IL-8 secreted by the MDA-MB-231 cells.</p><p><b>CONCLUSIONS</b>Parthenolide may suppress angiogenesis through decreasing angiogenic factors secreted by breast cancer cells to interfere with the proliferation, migration and lumen-like structure formation of endothelial cells, thereby inhibiting tumor growth. It is a promising potential anti-angiogenic drug.</p>

Clinical evaluation of high-risk HPV detection by hybrid capture II in screening cervical intraepithelial neoplasma / 中国医学科学院学报

<p><b>OBJECTIVE</b>To evaluate the value of high-risk HPV (hrHPV) detection by Hybrid Capture II (HC2) in screening cervical intraepithelial neoplasm (CIN).</p><p><b>METHODS</b>Totally 723 patients who had received a dual screening with thinprep cytologic test (TCT) and HC2 in our department were analyzed retrospectively. Among them, 350 patients received a triple examination with TCT, HC2, and colposcopic biopsy.</p><p><b>RESULTS</b>Among the 723 patients, the incidences of hrHPV infection with atypical squamous cell (ASC), low squamous intraepithelial lesion, and high squamous intraepithelial lesion were 70.7% (94/133), 88.9% (249/280), and 90.9% (90/99), respectively, significantly higher than 55.5% (117/211), the incidence of hrHPV infection with normal cytological results (P = 0.005, P < 0.001, P < 0.001, respectively). Among 350 cases who were received triple examination, the incidence of hrHPV infection with cervical intraepithelial neoplasia (CIN) 1 and CIN 2 were 88.9% (72/81) and 96.3% (52/54), significantly higher than 77.7% (153/197), the incidence of hrHPV infection with normal pathological results (P = 0.03, P = 0.002); The incidence of hrHPV infection with CIN 3 and squamous cancer were 91.7% (11/12) and 100.0% (6/6), also higher than normal cases. Among these 350 cases, the incidence of hrHPV infection with ASC was 79.3% (69/87). The incidence of CIN 2-3 with ASC and hrHPV infection was 38.0%, significantly higher than the incidence of CIN 2-3 with ASC and without hrHPV infection (5.9%) (P = 0.04).</p><p><b>CONCLUSION</b>hrHPV infection has a close relation with CIN, and the incidence of hrHPV infection increases along with the severity of CIN.</p>