Mechanism of action of Orthosiphon stamineus against non-alcoholic fatty liver disease: Insights from systems pharmacology and molecular docking approaches

Non-alcoholic fatty liver disease (NAFLD) is one of the most common complications of a metabolic syndrome caused by excessive accumulation of fat in the liver. Orthosiphon stamineus also known as Orthosiphon aristatus is a medicinal plant with possible potential beneficial effects on various metabolic disorders. This study aims to investigate the in vitro inhibitory effects of O. stamineus on hepatic fat accumulation and to further use the computational systems pharmacology approach to identify the pharmacokinetic properties of the bioactive compounds of O. stamineus and to predict their molecular mechanisms against NAFLD. Methods: The effects of an ethanolic extract of O. stamineus leaves on cytotoxicity, fat accumulation and antioxidant activity were assessed using HepG2 cells. The bioactive compounds of O. stamineus were identified using LC/MS and two bioinformatics databases, namely the Traditional Chinese Medicine Integrated Database (TCMID) and the Bioinformatics Analysis Tool for the Molecular Mechanism of Traditional Chinese Medicine (BATMAN-TCM). Pathway enrichment analysis was performed on the predicted targets of the bioactive compounds to provide a systematic overview of the molecular mechanism of action, while molecular docking was used to validate the predicted targets. Results: A total of 27 bioactive compounds corresponding to 50 potential NAFLD-related targets were identified. O. stamineus exerts its anti-NAFLD effects by modulating a variety of cellular processes, including oxidative stress, mitochondrial β-oxidation, inflammatory signalling pathways, insulin signalling, and fatty acid homeostasis pathways. O. stamineus is significantly targeting many oxidative stress regulators, including JNK, mammalian target of rapamycin (mTOR), NFKB1, PPAR, and AKT1. Molecular docking analysis confirmed the expected high affinity for the potential targets, while the in vitro assay indicates the ability of O. stamineus to inhibit hepatic fat accumulation. Conclusion: Using the computational systems pharmacology approach, the potentially beneficial effect of O. stamineus in NAFLD was indicated through the combination of multiple compounds, multiple targets, and multicellular components.     

路径式营养管理在食管癌患者围术期的应用研究

目的 探讨路径式营养管理在食管癌围术期患者中的应用效果。方法 选取2018年1月至2018年7月在四川省肿瘤医院胸外科接受食管癌根治手术治疗的患者156例，随机分为干预组（n=78）和对照组（n=78），干预组采用路径式营养管理，对照组采用常规营养管理，比较两组患者在术后7d血红蛋白、前白蛋白、体质指数（BMI）、预后营养指数（PNI）等营养指标、术后并发症发生率及术后住院时间。结果 干预组患者术后7d血红蛋白（126.09±16.69）g/L、前白蛋白（208.74±38.51）mg/L、BMI（22.28±2.05）kg/m2、PNI（46.62±4.03）优于对照组，差异有统计学意义（P<0.05）；干预组患者胸腔积液发生率低于对照组，差异有统计学意义（t=4.02，P=0.04）；干预组患者住院时间短于对照组，差异有统计学意义（t=6.53，P=0.03）。结论 路径式营养管理能有效改善食管癌围术期患者营养状况、降低并发症发生率、缩短术后住院时间。     

临床护理路径建立对急性非静脉曲张性上消化道出血患者再出血及预后的影响

目的分析临床护理路径建立对急性非静脉曲张性上消化道出血(ANVUGIB)患者再出血及预后的影响。方法选择医院诊治的ANVUGIB患者63例,分为对照组(n=33)和干预组(n=30)。对照组予以常规护理干预,干预组采取临床护理路径干预,比较两组护理效果。结果干预组患者护理总满意率96.67%,高于对照组(66.67%,P<0.05);干预后,干预组患者血红蛋白水平高于对照组,血尿素氮水平低于对照组(P<0.05);干预后,干预组患者BRS积分、患者再出血率低于对照组,依从率(90.00%)高于对照组(63.64%,P<0.05)。结论临床护理路径能明显提升ANVUGIB患者预后,减少再出血风险,改善营养与代谢指标。     

2型糖尿病临床路径管理工作细化分析

2型糖尿病的临床路径管理工作在北华大学附属医院已开展1年多，目前已处于稳步发展阶段，本文详细分析和细化本院2013年上半年2型糖尿病的临床路径管理工作的实施现状及实施效果，较具体的介绍了本院内分泌专科完善和实施2型糖尿病临床路径管理的实施计划，旨在推广经验，从而推动本院临床路径管理工作运行水平。     

Biocomputional construction of a gene network under acid stress in Synechocystis sp. PCC 6803

Acid stress is one of the most serious threats that cyanobacteria have to face, and it has an impact at all levels from genome to phenotype. However, very little is known about the detailed response mechanism to acid stress in this species. We present here a general analysis of the gene regulatory network of Synechocystis sp. PCC 6803 in response to acid stress using comparative genome analysis and biocomputational prediction. In this study, we collected 85 genes and used them as an initial template to predict new genes through co-regulation, protein–protein interactions and the phylogenetic profile, and 179 new genes were obtained to form a complete template. In addition, we found that 11 enriched pathways such as glycolysis are closely related to the acid stress response. Finally, we constructed a regulatory network for the intricate relationship of these genes and summarize the key steps in response to acid stress. This is the first time a bioinformatic approach has been taken systematically to gene interactions in cyanobacteria and the elaboration of their cell metabolism and regulatory pathways under acid stress, which is more efficient than a traditional experimental study. The results also provide theoretical support for similar research into environmental stresses in cyanobacteria and possible industrial applications.     

针灸防治心肌缺血再灌注损伤的线粒体通路研究进展

目的：探讨针灸防治心肌缺血再灌注损伤的线粒体细胞信号转导机制,为后续研究提供思路。方法:通过对近年来国内外有关线粒体心脏损伤的研究入手,分析针灸防治心肌缺血再灌注损伤的线粒体通路的研究进展。结果：研究多以大鼠为观察对象,主要从针刺改善线粒体功能,减少线粒体活性氧类（ROS）产生过量引起氧化应激,防止细胞内Ca2+超载和阻止线粒体通透性转换孔（mPTP）的开放等角度切入研究。结论：微小RNA(microRNA,miRNA)是基因网络、蛋白网络、代谢网络等的上游网络的调控环节。鉴于针灸作用的整体性特点,将miRNA引入针灸作用机制研究领域,可在基因或其他水平层面更好地揭示针灸作用机制。