黄连解毒汤对小鼠酒精性脂肪肝的预防作用

目的 研究黄连解毒汤(HLJDT)对小鼠酒精性肝损伤的预防作用,为黄连解毒汤临床防治酒精性肝病提供实验依据。方法 选取60只C57小鼠随机分为空白对照组、模型对照组和HLJDT低、中、高剂量(0.61、1.22、2.44 g/kg/d)模型组,每组各12只。模型组用50%乙醇灌胃,同时采用HLJDT进行实验干预,6周后,对各组小鼠的体质量、肝指数、血清生化指标以及肝脏和结肠的病理学改变进行综合对比分析。结果 HLJDT各剂量模型组小鼠的体重增长量均显著增加(P<0.05),肝指数明显降低(P<0.05),同时HLJDT各剂量模型组能显著降低血清ALT、AST和TG的含量(P<0.05)。病理结果显示HLJDT各剂量均对酒精性肝损伤有显著的改善作用,且从低剂量到高剂量组对肠粘膜通透性具有递增的改善作用。结论 黄连解毒汤可显著降低肠粘膜的通透性,对小鼠酒精性肝损伤具有一定的预防保护作用。     

益心解毒方对Nox2和Nox4亚基过表达的心肌细胞NADPH氧化酶活性的影响

目的通过观察益心解毒方含药血清对Nox2、Nox4亚基过表达的H9c2心肌细胞NADPH氧化酶活性的影响,揭示其作用环节是否与干预相应亚型的NADPH氧化酶调控环节有关。方法采用PCR方法扩增Nox2、Nox4基因全长序列,经双酶切、连接载体和转化后提取重组质粒,经酶切鉴定的阳性质粒进行DNA测序,测序正确后按照lipofectamine 2000试剂的说明书瞬时转染H9c2细胞,转染后的心肌细胞分组给予不同的药物干预,24 h后检测NADPH氧化酶活性。结果 1含有Nox2/Nox4亚基的重组质粒载体通过测序鉴定,结果与Gen Bank报道的完全一致。2通过荧光显微镜下观察转染72 h后的H9c2细胞,可见大量发绿色荧光的细胞,流式细胞术计数结果显示转染率均在60%左右,符合实验要求。3空质粒载体组、模型组、益心解毒方组的NADPH氧化酶活性表达明显高于正常组(P<0.01,P<0.05);模型组和益心解毒方组的NADPH氧化酶活性表达高于空载体组(P<0.01);模型组NADPH氧化酶活性表达均明显高于其他各组,而益心解毒方各组的NADPH氧化酶活性表达均明显低于模型组(P<0.01,P<0.05)。结论成功构建大鼠心肌细胞Nox2、Nox4亚基的重组质粒载体,该重组质粒载体可以在心肌细胞中过表达,益心解毒方可以有效地降低NADPH氧化酶活性的表达。提示此复方治疗心衰的机制可能是抑制了Nox2和Nox4型NADPH氧化酶的表达。     

Nutrition for the micro preemie: Beyond milk

Nutritional support is a fundamental component of the care of the extremely preterm infant, including the “micro preemie” (here defined as a baby born weighing less than 500 g), but goes beyond considerations of milk as a food. This is because milk from an infant's own mother, unlike currently available substitutes, additionally provides invaluable non-nutritive benefits.Nutritional support requires suitable devices or techniques to administer nutrients enterally or intravenously, products shown to be safe in preterm populations, and efficacy demonstrated in respect of important functional outcomes. Sadly, preterm feeding remains characterised by a deficit of evidence. In this chapter, we will briefly describe the history of preterm nutrition, discuss current enteral and parenteral practice, important evidence gaps, a summary of approaches for evaluating nutritional practice, and key considerations for future endeavour. Our discussion refers to all extremely preterm infants and it not confined to the micro preemie.     

Accuracy of the London Atlas,Haavikko’s Method and Cameriere’s European Formula of dental age estimation in Turkish children

Age estimation is a mandatory procedure when the chronological age is unknown or uncertain. Dental development is the preferred characteristic for estimating a child's age. There are many methods for dental age estimation, but their reliability can differ between populations. This study compared the accuracy of three of these methods—the London Atlas (LA), Haavikko's method (HM), and Cameriere's European formula (CF)—in Turkish children living in northwestern Turkey. Panoramic radiographs of 980 children from northwestern Turkey aged between 6.00 and 14.99 years were examined for the whole study group and separately for different ages and sexes by all three methods. Statistical differences between chronological age and dental age were tested using the paired sample t-test and the Wilcoxon signed-rank test. The LA, HM, and CF accuracies were determined based on the mean absolute error. Spearman's rank correlation coefficient showed that the correlation between chronological age and dental age for both sexes was linear for all methods. The LA overestimated the chronological age by 0.09 years, while HM and CF underestimated it by 0.49 and 0.11 years, respectively. The difference between dental age and chronological age was significant in all samples, for all methods, except for the LA in boys. When boys, girls, and the total sample were evaluated, values with the lowest mean absolute error were obtained by HM and were statistically significant in all three groups. Therefore, HM is more accurate than the LA and CF for dental age estimation in Turkish children living in northwestern Turkey.     

生脉方治疗心力衰竭的药理作用研究进展

心力衰竭是威胁人类健康的重大疾病之一,其病理机制复杂,中医药防治心衰具有显著特色。中医理论认为气阴两虚是心衰患者的主要证候之一,生脉散为益气养阴的代表方。目前根据生脉散研制的中成药包括注射用益气复脉、生脉注射液、生脉散、生脉饮、参麦注射液、生脉胶囊等,被广泛用于治疗心脑血管疾病。从生脉方改善线粒体功能、抑制心室重塑、减轻心肌细胞的炎性反应3个方面综述了生脉方治疗心衰的研究进展,以期为心衰的防治提供依据。     

注射用益气复脉（冻干）联合多巴胺/多巴酚丁胺治疗心源性休克临床研究

目的 探讨注射用益气复脉（冻干）联合多巴胺/多巴酚丁胺治疗心源性休克的临床疗效。方法 选取郑州市中医院2018年1月-2019年12月收治的心源性休克患者120例为研究对象,采用随机数字法最终分为对照组（54例）和观察组（52例）。对照组患者在常规治疗的基础上给予大剂量盐酸多巴胺注射液5~20 μg/（kg·min）和盐酸多巴酚丁胺注射液5~15 μg/（kg·min）治疗。观察组在对照组治疗基础上静滴注射用益气复脉（冻干）2.6~5.2 g/次,加入5%葡萄糖注射液或0.9%氯化钠注射液250~500 mL中,1次/d。疗程为7~14 d。观察两组患者的临床疗效和不良反应情况,同时比较两组治疗前后的血压和尿量水平。结果 治疗后,观察组患者总有效率为94.2%,显著高于对照组的81.5%,两组比较差异有统计学意义（P<0.05）。治疗后,两组血压和尿量水平均明显改善,同组治疗前后比较差异有统计学意义（P<0.05、0.01）,观察组的血压和尿量水平显著高于对照组,两组比较差异有统计学意义（P<0.05、0.01）。两组不良反应发生率差异无统计学意义。结论 注射用益气复脉（冻干）联合多巴胺/多巴酚丁胺治疗心源性休克患者具有一定的临床疗效,能够显著改善血压和尿量水平。     

逍遥散治疗糖尿病的网络药理学分析

新型冠状病毒肺炎（COVID-19）已成为全球性的重大疫情,中医药在重大疫情防控过程中发挥了重要作用。基于对COVID-19的认识以及中医药防控路径,以疏风解毒胶囊为例,概述了中医药针对早期干预、阻断病情进展、改善症状、抗炎免疫、抑制“细胞因子风暴”以及辨证分型、发挥配伍优势等方面的思路和研究实践,并提出中药新药研发科学模式建立的设想。     

重楼解毒酊外涂治疗新生儿毒性红斑50例临床观察

目的观察重楼解毒酊外涂治疗新生儿毒性红斑的临床疗效。方法选取2018年6-12月在北京市上地医院儿科住院治疗的新生儿毒性红斑患儿100例,按照随机数字表法分为对照组和治疗组,各50例。对照组予日常的皮肤护理,治疗组在对照组护理方法的基础上予重楼解毒酊外涂,治疗5 d后,比较2组的临床疗效。结果对照组总有效率为74%,治疗组为96%,2组比较,差异有统计学意义(P<0.05)。结论重楼解毒酊外涂治疗新生儿毒性红斑疗效确切,简便易行,值得临床推广应用。     

中药内服外用治疗小儿疱疹性咽峡炎58例临床观察

目的观察银花解毒口服液口服联合开喉剑口腔喷雾剂外喷治疗小儿疱疹性咽峡炎的临床疗效。方法选取2017年7月至2018年7月襄阳市中医医院儿科确诊的疱疹性咽峡炎患儿98例,按照随机数字表法分为治疗组58例和对照组40例。在对症、支持治疗的基础上,对照组予阿糖腺苷静脉滴注,治疗组予银花解毒口服液口服联合开喉剑喷雾剂外喷,连续治疗5 d后,比较2组的中医证候总评分、总有效率及临床症状消失时间。结果对照组总有效率为77.5%(31/40),治疗组为96.6%(56/58),2组比较,差异有统计学意义(P<0.05)。治疗前,2组中医证候总积分比较,差异无统计学意义(P>0.05),具有可比性。治疗后,2组中医证候总积分均明显下降,与同组治疗前比较,差异有统计学意义(P<0.05),且治疗组下降更显著(P<0.05)。治疗组热退、疱疹消失时间均明显短于对照组,差异有统计学意义(P<0.05)。结论银花解毒口服液口服联合开喉剑口腔喷雾剂外喷治疗小儿疱疹性咽峡炎,能有效减轻患儿临床症状,缩短病程,疗效显著,值得临床推广应用。