主动吸入药物烟对大鼠一氧化氮的影响

目的　探讨主动吸入药物烟对大鼠NO的影响。方法　制备大鼠主动吸烟模型 ,采用硝酸还原酶法测定各组大鼠血清、肺、心肌及脑组织的NO含量。结果　非药物烟组大鼠血清、肺、心肌及脑组织中NO含量明显低于非给烟对照组 ,药物烟高、中剂量组NO含量明显高于非药物烟组 ,接近非给烟对照组。结论　吸烟对大鼠血液、肺、心肌及脑组织有不同程度的损伤作用 ,使NO含量降低 ;药物烟具有一定的保护和防止NO含量降低的作用。     

UPLC-MS/MS法测定中药和保健食品中非法添加13种化学成分的含量

目的建立了补肾壮阳类中药和保健食品中非法添加13种化学成分的QTRAP UPLC-MS/MS快速测定方法。方法选用QTRAP UPLC-MS/MS技术;岛津Shim-pack XR-ODSⅡ(150mm×2.0mm,2.2μm)为色谱柱;乙腈-含1mL·L~(-1)冰醋酸的20mmol·L~(-1)的醋酸铵为流动相;0.3mL·min~(-1)梯度洗脱;采用正离子多反应监测模式测定含量。结果 13种化学成分在各自的范围内有良好的线性关系,r≥0.998 1;方法精密度RSD值均小于2.0%;回收率为96.0%~108.0%。结论该方法快速、准确、灵敏度高、专属性强,可作为补肾壮阳类中药和保健食品中非法添加化学成分的快速检测方法。     

UPLC-Q-TOF-MS快速测定减肥类保健食品中非法添加的双氯芬酸

目的 建立超高效液相色谱四极杆飞行时间串联质谱法测定减肥类保健食品中非法添加双氯芬酸化学药物的检测方法。方法 采用 phenomenex C₁₈色谱柱分离,以0.02 mol·L^-1醋酸铵溶液和乙腈梯度洗脱,采用TOF,MS/MS扫描模式检测。结果 经对照品确认,样品中检测出双氯芬酸,该化合物在减肥类保健食品中尚未见报道。结论 本方法可以用于快速鉴定减肥类保健食品中非法添加双氯芬酸物质的检测。     

静脉注射免疫球蛋白临床治疗儿童癫痫的疗效及可能机制进行分析

目的探讨并分析在儿童癫痫病的治疗过程中,静脉注射免疫球蛋白的临床疗效及可能机制。方法对于我院就诊的84例儿童癫痫患者的临床资料进行回顾性分析。通过随机的方式将84例儿童癫痫患者分为试验组与对照组两组,对试验组的患者采取静脉注射免疫球蛋白的方法进行治疗,对照组的患者采用托吡酯添加的方法进行治疗。结果两组患者治疗后试验组患者在血清球蛋白及淋巴细胞亚群方面都要好于对照组。结论静脉注射免疫球蛋白能够有效的降低儿童癫痫患者的CD19+B及CD20+B细胞值,对儿童癫痫病有很好的临床疗效。     

高效液相色谱法检测止咳平喘类中成药中非法添加的醋酸泼尼松、茶碱

目的建立测定止咳平喘类中成药中非法添加化学药品醋酸泼尼松、茶碱的方法。方法采用反相高效液相色谱法,十八烷基硅烷键合硅胶柱,流动相甲醇-水,流速1.0 mL/min,测定波长为240 nm和275 nm,柱温35℃。结果醋酸泼尼松进样量在2.078 4×10-2～1.558 8μg,茶碱进样量在1.323 2×10-2～1.323 2μg范围内分别与峰面积线性关系良好,平均回收率为98.27%和98.10%,RSD分别为1.4%和1.2%。结论该方法简单、快速、准确,适用于止咳平喘类中药中以醋酸泼尼松、茶碱为指标的非法添加成分的检测。     

Drive-thru pharmacy services: A way forward to combat COVID-19 pandemic

Countries around the globe have responded to pandemic preparedness and developed strategies to cope with the COVID-19 crisis. In this context, the role of healthcare professionals is of paramount importance. Pharmacists are playing a vital role in dealing, preparedness, prevention, protection, promoting access to medicines and to improve health outcomes during this crisis. In this context, “Drive-thru” pharmacy services improve access to medicines while ensuring the preventive measures suggested by the World Health Organization. This commentary provides an overview of opportunities and challenges related to the implementation of “drive-thru pharmacy services” and their role in improving public health during this crisis.     

Do Fructose-Containing Sugars Lead to Adverse Health Consequences? Results of Recent Systematic Reviews and Meta-analyses

Sugars have replaced fat as the dominant public health nutrition concern. A fructose-centric view of cardiometabolic disease has emerged whereby fructose-containing sugars are thought to have deleterious effects on body weight, fasting and postprandial blood lipids, glycemia, blood pressure, uric acid, and markers of nonalcoholic fatty liver disease. Long-term prospective cohort studies have not supported these associations when assessing the relation between total fructose-containing sugars at any amount of intake and incident cardiometabolic disease. Conversely, a consistent signal for harm has been reported for sugary beverages when comparing the highest with the lowest intakes. These associations, however, do not hold at moderate intakes, which are more reflective of real-world intakes, are subject to important collinearity effects, and have small risk estimates with modest population-attributable risk fractions. Higher-level evidence from controlled feeding trials shows that fructose-containing sugars in either liquid or solid form have adverse cardiometabolic effects only when they supplement diets with excess calories compared with the same diets without the excess calories. In the absence of harm when fructose-containing sugars are exchanged for other sources of carbohydrate under energy-matched conditions, excess calories appear to be the dominant consideration. Like with the earlier fat story, it is difficult to separate the contribution of fructose-containing sugars from that of other sources of excess calories in the epidemic of obesity and cardiometabolic disease. Attention needs to remain focused on reducing the overconsumption of all caloric foods associated with obesity and cardiometabolic disease, including sugary beverages and foods, and promoting greater physical activity.     

A convenient method for the preparation of radioiodinated meta‐iodobenzylguanidine at a no‐carrier‐added level

Radioiodinated meta‐iodobenzylguanidine (MIBG) in high effective specific activity was prepared using 3‐tributylstannylbenzylguanidine as the precursor. The labeling was carried out in aqueous solution with the insoluble and lyophilized precursor suspended in the solvent. Simply by filtration, the starting material and by‐products were readily separated from the labeled solution. Less than 1.15 ppb tin has remained in the filtrate as determined by the atom fluorescence spectrometry. By this approach, high specific activity (3.4 GBq/µmol) [¹³¹I]MIBG was obtained in 72.3 ± 3% (n = 3) radiochemical yield and 97.3 ± 2% (n = 3) radiochemical purity. The whole preparation could be finished in less than 10 min. According to this method, a kit for the preparation of ¹²³I‐MIBG and ¹³¹I‐MIBG is currently being developed.