舟山地区部队官兵贫血的流行病学调查

目的了解舟山地区部队官兵贫血的检出情况。方法运用整群抽样方法,采集陆、海军男性官兵的静脉血2mL,检测血红蛋白（Hb）,并开展问卷调查。结果 444名受检官兵的Hb为（144.4±12.1）g/L,Hb〈120g/L的男性共5名,贫血检出率为1.1%,1例为中度贫血。问卷调查表中与血液系统疾病相关的10项自觉症状中,乏力、烦躁最多见;与消化系统疾病相关的10项自觉症状中,食欲不振最多见,且贫血官兵均有不同程度的不良饮食习惯。结论舟山地区部队官兵的贫血检出率较低,但中度贫血被检出;贫血官兵均有不同的不良饮食习惯;乏力、烦躁等自觉症状的发生,有助于贫血的早期诊断与治疗;消化系统自觉症状与贫血的相互关系值得进一步探讨。     

Identification of a major metabolite of danshensu in rat urine and simultaneous determination of danshensu and its metabolite in plasma: application to a pharmacokinetic study in rats

Danshensu, as the effective component of Salvia miltiorrhiza (Danshen), has been widely used in clinical studies for treatment of cardiovascular diseases in China. A new metabolite, 4‐hydroxy‐3‐methoxyphenyllactic acid was isolated from the urine of rats, and its chemical structure was identified by ultraviolet (UV), Infrared Spectroscopy (IR), mass spectrometry (MS) and nuclear magnetic resonance (NMR). Furthermore, a selective and sensitive high performance liquid chromatography‐tandem mass spectrometric (HPLC‐MS/MS) method was developed for the simultaneous quantification of danshensu and its major metabolite, 4‐hydroxy‐3‐methoxyphenyllactic acid, in rat plasma after oral and intravenous administration of danshensu. The separation was performed on a Hypersil Gold C₁₈ column (150 × 2.1 mm i.d., 3.0 µm, Thermo, San jose CA, USA) with gradient elution using a mobile phase composed of methanol and water (containing 0.1% formic acid) at a flow rate of 0.2 mL/min. Linear detection responses were obtained for danshensu and 4‐hydroxy‐3‐methoxyphenyllactic acid ranging from 5 to 10000 ng/mL and 5 to 4000 ng/mL, respectively. The lower limits of quantification (LLOQs) for the two compounds were both 5 ng/mL. The intra‐and inter‐day precision (R.S.D %) were within 5.61% for the two analytes. The average recoveries of the analytes were greater than 72.43%. The method was proved to be stable during all sample storage, preparation and analytic procedures. This method was successfully applied to the pharmacokinetic studies of danshensu and 4‐hydroxy‐3‐methoxyphenyllactic acid after oral and intravenous administration of danshensu in rats.Copyright © 2014 John Wiley & Sons, Ltd.     

卡马西平与托吡酯在针对部分性癫痫患者的有效性及安全性分析

目的 分析卡马西平与托吡酯在针对部分性癫痫患者的有效性及安全性.方法 搜集2009年2月至2013年3月于我院住院治疗的部分性癫痫患者72例,随机将患者分为联合治疗组(36例)和卡马西平组(36例),观察分析联合治疗组和卡马西平组用药后3个月、6个月部分性癫痫发作率、发作频率,用药后6个月的临床疗效,用药后6个月脑电图随访及不良反应.结果 联合治疗组治疗后3个月发作率为33.33％,发作频率为(2.57±2.09)次;联合治疗组治疗后6个月发作率为22.22％,发作频率为(2.21±1.73)次.卡马西平组治疗后3个月发作率为47.22％,发作频率为(3.69±2.73)次;卡马西平组治疗后6个月发作率为33.33％,发作频率为(3.52±2.27)次.联合治疗组治疗后3个月及6个月的部分性癫痫发作率及发作频率均显著低于卡马西平组(P＜0.05).联合治疗组用药6个月后治疗有效率为86.11％;卡马西平组治疗6个月后治疗有效率为72.22％,联合治疗组用药6个月后治疗有效率显著高于卡马西平组(P＜0.05).联合治疗组痫样放电改善率为80.00％,卡马西平组痫样放电改善率为69.56％,联合治疗组痫样放电改善率高于卡马西平组(P＜0.05).联合治疗组不良反应发生率为16.67％,卡马西平组不良反应发生率为13.89％,两组患者不良反应发生率差异无统计学意义(P＞0.05).结论 卡马西平联合应用托吡酯能够有效地治疗部分性癫痫,且安全性较高.     

基于“互联网+”探索药事服务模式的问卷调查研究

目的 研究患者对"互联网+"药事服务的接受程度及未来搭建网上药事服务平台的方向,探讨"互联网+"时代下药事服务类型及模式。方法 自制调查问卷,经过三轮专家审阅后形成问卷,在省内的3家"三甲"医院对600例门诊患者发放问卷。结果 488例患者中417例（85.5%）认为药师通过互联网提供药学服务是有必要的,其中网上预约药物配送、网上药师咨询、网上用药教育、药学知识的科普及网上售药的接受程度分别为73.5%,78.2%,64.3%,70.4%,47.4%。网上药师咨询中微信（68.8%）最受中青年患者的欢迎,中老年患者偏爱电话及短信等服务。当前"互联网+"药事服务在医保报销、运营监管、物流配送等方面存在问题。结论 "互联网+"药事服务是一种值得探讨的新型服务模式,其开展需完善相关的法律法规并加强监管,为患者的权益提供保障。     

细胞穿透肽YARA介导增强型绿色荧光蛋白转导入人结直肠癌细胞的实验研究

目的 构建原核表达载体pET15b-YARA EGFP,表达并纯化出融合蛋白YARA-EGFP,观察其穿透人结直肠癌细胞的情况.方法 用分子克隆技术构建出表达型载体pET15b-YARA-EGFP,在E.coli BL21(DE3)中表达融合蛋白YARA-EGFP,将鉴定和纯化后的融合蛋白加入体外培养的人结直肠癌细胞.结果 得到纯化的融合蛋白YARA-EGFP,能高效地转导入体外培养的人结直肠癌细胞,并表现出剂量和时间依赖性,MTT法检测在其高浓度时仍对细胞无毒性.结论 YARA-EGFP融合蛋白能高效地转导入体外培养的人结直肠癌细胞.     

小檗胺在升高白细胞的同时对乳酸脱氢酶的影响

采用酶细胞化学及平板聚丙烯酰胺凝胶电泳法观察小檗胺(Ber)在升高白细胞的同时,是否对细胞内酶代谢及其同工酶有影响。结果表明:ip Ber的小鼠粒细胞内LDH酶反应明显增强,酶反应的强弱与用药时间长短成正比。LDH同工酶谱分析,所有标本均显示5条区带,LDH_2比例发生变化,对照组及Ber组中出现LDH’_5亚带。提示,Ber在升高白细胞的同时对细胞内酶的代谢有一定影响,同时伴有同工酶谱比例改变。     

薄层扫描法测定复方鱼腥草滴丸中连翘苷含量

目的：用薄层扫描法测定复方鱼腥草滴丸中连翘苷的含量。方法：以氯仿∶甲醇∶冰乙酸（75∶12∶0.5）为展开剂,采用硅胶G薄层板,以5%香草醛硫酸液为显色剂,采用双波长反射锯齿扫描测定其含量,最大吸收波长λS520nm,参比波长λR700nm。结果：线性范围1～10μg, r=0.9985,平均回收率为98.65%,RSD=1.86%。结论：本方法灵敏、简便、准确,结果稳定,可作为复方鱼腥草滴丸的质量控制方法。     

Binding and Anticancer Properties of Plumbagin with Human Serum Albumin

Plumbagin has received extensive attention as a promising anticancer drug. Therefore, we investigated the binding and anticancer properties of plumbagin with human serum albumin. Fluorescence results demonstrated that plumbagin interacts with human serum albumin, although its binding affinity may be affected to various extents by different compounds. The human serum albumin–plumbagin complex structure revealed that plumbagin binds to the hydrophobic cavity in the IIA subdomain of human serum albumin through hydrogen bonding and hydrophobic interactions. The plumbagin–human serum albumin complex enhances cytotoxicity by 2‐ to 3‐fold particularly in cancer cells but has no effect on normal cells in vitro. Compared with the unbound drug, the human serum albumin–plumbagin complex promotes HeLa cell apoptosis and has a stronger capacity for cell cycle arrest at the G2/M phase of HeLa cells. In conclusion, this study contributes to the rational design and development of plumbagin‐based drugs and a drug–human serum albumin delivery system.     

胆碱乙酰化酶在人体耳蜗的定位

应用免疫细胞化学方法，研究胆碱乙酰化酶在人体耳蜗的定位。结果发现，胆碱乙酰化酶定位于人体耳蜗传出神经系统。实验表明，乙酰胆碱是人体耳蜗的传出神经递质     

Template-Mediated Synthesis of Hierarchically Porous Metal–Organic Frameworks for Efficient CO2/N2 Separation

Carbon dioxide (CO₂) is generally unavoidable during the production of fuel gases such as hydrogen (H₂) from steam reformation and syngas composed of carbon monoxide (CO) and hydrogen (H₂). Efficient separation of CO₂ from these gases is highly important to improve the energetic utilization efficiency and prevent poisoning during specific applications. Metal–organic frameworks (MOFs), featuring ordered porous frameworks, high surface areas and tunable pore structures, are emerging porous materials utilized as solid adsorbents for efficient CO₂ capture and separation. Furthermore, the construction of hierarchical MOFs with micropores and mesopores could further promote the dynamic separation processes, accelerating the diffusion of gas flow and exposing more adsorptive pore surface. Herein, we report a simple, efficient, one-pot template-mediated strategy to fabricate a hierarchically porous CuBTC (CuBTC-Water, BTC = 1,3,5-benzenetricarboxylate) for CO₂ separation, which demonstrates abundant mesopores and the superb dynamic separation ability of CO₂/N₂. Therefore, CuBTC-Water demonstrated a CO₂ uptake of 180.529 cm³ g⁻¹ at 273 K and 1 bar, and 94.147 cm³ g⁻¹ at 298 K and 1 bar, with selectivity for CO₂/N₂ mixtures as high as 56.547 at 273 K, much higher than microporous CuBTC. This work opens up a novel avenue to facilely fabricate hierarchically porous MOFs through one-pot synthesis for efficient dynamic CO₂ separation.