A study on the inhibition of VEGF expression in salivary gland adenoid cystic carcinoma cells via iNOS gene RNAi in vitro

In this study, we aimed to explore the effect of inducible nitric oxide synthase (iNOS) on vascular endothelial growth factor (VEGF) expression in salivary gland adenoid cystic carcinoma (SACC). Using RNAi, we transfected chemically synthesised iNOS siRNA into ACC‐M cells (a highly metastatic adenoid cystic carcinoma cell line) and detected the change in the gene and protein expression levels of iNOS and VEGF by qRT‐PCR and Western blotting. A transwell invasiveness assay was used to examine the changes in invasive ability of ACC‐M cells. Cell growth was determined using a CCK‐8 assay. Apoptosis and cell‐cycle phases were detected by flow cytometry. We found that silencing iNOS down‐regulated the expression of VEGF and then inhibited cell growth and invasiveness of SACC cells, while it increased apoptosis. Therefore, we concluded that iNOS can regulate VEGF expression and iNOS may be a therapeutic target.     

Choosing calcium channel blockers for pregnant women with paroxysmal supraventriclar tachycardia and preterm labor: a case report

Preterm labor is a major clinical hazard causing both maternal and neonatal morbidity and mortality. Paroxysmal supraventricular tachycardia (PSVT) complicated by preterm labor is rare. Of the many drugs used to treat PSVT, only calcium channel blockers are tocolytics. Here, we present the case of a 29-year-old female admitted to our ward with previously diagnosed PSVT and preterm labor at 31 weeks' gestation of her fourth pregnancy. Calcium channel blockers were administered and her uterine contractions subsided. Afterwards, no side effects were noted and she suffered no further tachycardic attacks during her pregnancy. She successfully delivered a full-term baby and received subsequent regular follow-up at the outpatient clinic.     

巴马神酒调节免疫及抗脂质过氧化药理作用研究

摘 要 目的： 观察巴马神酒对小鼠免疫功能、肝脏脂质过氧化损伤及游泳耐力的药理作用。方法: 采用碳粒廓清实验法及环磷酰胺致小鼠免疫低下模型评价巴马神酒对免疫功能的作用;建立四氯化碳致小鼠急性肝损伤模型,以血清中丙氨酸氨基转移酶（ALT）、天门冬氨酸转移酶（AST）、超氧化物歧化酶（SOD）以及丙二醛（MDA）的水平,评价巴马神酒抗肝脏脂质过氧化损伤作用;以小鼠负重游泳的持续时间,评价巴马神酒提高游泳耐力的功能。结果: 巴马神酒能提高小鼠吞噬指数K及吞噬系数α（与空白组比较,P<0.01或P<0.05）;对环磷酰胺诱发的胸腺、脾脏脏器指数的下降有一定的提高（与模型组比较,P<0.05）;能够降低四氯化碳致小鼠急性肝损伤血清中AST、ALT含量,降低血清MDA的含量,增强SOD的活性（与模型组比较,P<0.01或P<0.05）;可以延长小鼠负重游泳时间（与空白组比较,P<0.01或P<0.05）。结论: 巴马神酒具有提升小鼠巨噬细胞吞噬能力、保护免疫低下小鼠的胸腺和脾脏指数的作用,并具有抗肝脏脂质过氧化损伤和提高游泳耐力的作用。