薯蓣皂素生产工艺的研究进展

介绍薯蓣皂素生产工艺的现状及存在的问题,对生产工艺的研究进展进行总结,并对生产工艺的发展前景提出了观点,认为低污染或无污染的薯蓣皂素生产工艺将成为其发展方向.     

虎杖提取工艺初探

对乙肝康君虎杖进行单方水提、复方水提及７０％醇提工艺比较，结果７０％醇提，总蒽酯提取率为９６．７％，大黄素提取率为９６．１％，但经回收酒精，浓缩，干燥后，总蒽酯保留率为６８．９％，大黄素保留率为６５．６％。     

重庆喀斯特地区金银花的生物学特性及规范化种植技术研究

为促进金银花种植技术在广大喀斯特地区顺利推广,促进中药材产业的顺利发展,并促进喀斯特地区生态顺利恢复,结合喀斯特地区生态恢复技术研究项目的 开展,开展了金银花主要品种忍冬在喀斯特地区的生物学特性研究、生态作用分析和规范化种植技术研究,形成了较为系统金银花规范化种植技术体系,主要包括育苗、移栽、田间管理、病虫害防治及加工...     

细胞共培养技术在医药研究中的应用

细胞共培养由于能更好地模拟体内环境,便于更好的观察细胞与细胞、细胞与培养环境之间的相互作用以及探讨药物的作用机制和可能的作用靶点,填补了单层细胞培养与整体动物实验研究的鸿沟,近年来倍受医药领域的关注,成为药物研发、生物制药领域的研究热点.细胞共培养方法包括直接共培养和间接共培养,主要用于疾病病理基础、新型治疗手段以及药物活性筛选的研究.现有的细胞共培养技术主要用于单一药物的药效学研究,用于联合药物相互作用的研究甚少.中药复方之间协同配伍,减毒增效.细胞共培养技术符合中药多成分、多靶点的作用特点,这对于未来探讨中药联合用药对机体的作用及机制的研究具有一定参考价值,为中药及复方研究提供了一种新的手段.该文就细胞共培养技术的方法与运用进行了概述,并对该技术运用于中药及复方的研究进行了展望.     

经皮椎体成形术治疗15例骨质疏松性椎体压缩性骨折体会

近年来,国内外文献报导经皮椎体成形术治疗骨质疏松性椎体压缩性骨折由于创伤小、效果好、并发症少而大量应用于临床。2009-2010年我们采用该手术治疗骨质疏松性骨折15例,疗效满意,现报告如下。     

Effectiveness of a new triple-row circular stapler in reducing the risk of colorectal anastomotic leakage: A historical control and propensity score–matched study

Anastomotic leakage (AL) after colorectal surgery is a serious complication. This study aimed to evaluate the effectiveness of the EEA™ circular stapler, a new triple-row circular stapler (TCS), relative to a conventional, double-row circular stapler (DCS).A total of 285 patients who underwent anastomosis with the double stapling technique at the Tokyo Medical University Hospital between 2017 and 2021 were included in this nonrandomized clinical trial with historical controls using a propensity score (PS) analysis. The primary endpoint was the risk of AL.We performed a 1:2 PS matching analysis. Before case matching, AL occurred in 15 (7.4%) and 2 (2.4%) patients in the DCS and TCS groups, respectively, with no significant difference (P = .17). After case matching, AL occurred in 13 patients (11.6%) and 1 patient (1.8%) in the DCS and TCS groups, respectively, revealing a significant difference (P = .04). Cox models were created by applying PS to adjust for group differences via regression adjustment. Odds ratios for AL in the DCS group versus the TCS group were 0.31 (95% confidence interval [CI]: 0.07–1.38) in the entire cohort, 0.15 (95% CI: 0.02–0.64) in the regression adjustment cohort, and 0.14 (95% CI: 0.02–1.09) in the 1:2 PS-matched cohort.PS analysis of clinical data suggested that the use of TCS contributes to a reduced risk of AL after colorectal anastomosis CTwith the double stapling technique.     

Three-dimensional assessment of palatal area changes after posterior crossbite correction with tooth-borne and tooth bone–borne rapid maxillary expansion: A randomized controlled trial with 5-year follow-up

ObjectivesTo assess and compare the three-dimensional treatment changes in palatal surface area and volume using either tooth-borne (TB) or tooth bone–borne (TBB) rapid maxillary expanders and to evaluate the long-term effects of the two devices and the incidence of the relapse between the groups.Materials and MethodsA total of 52 consecutive patients who met the eligibility criteria were recruited and allocated to either the TB group, mean age 9.3 years (standard deviation [SD], 1.3), or the TBB group, mean age 9.5 years (SD, 1.2). Study casts were taken before, directly after, 1 year after, and 5 years after expansion. Study casts were digitized, superimposed, and evaluated. Participants were randomly allocated in blocks of different sizes using the concealed allocation principle in a 1:1 ratio.ResultsChanges in palatal volume, palatal surface area, and palatal projection area within and between the groups up to 5 years after expansion followed the same pattern and did not show any statistically significant differences between the groups. Relapse was seen in 15% of the patients. It seemed that open-bite and a Class III growth pattern could be assumed as prognosis-deteriorating factors in regard to stability of the treatment.ConclusionsThere were no significant differences between the TB and TBB groups in palatal volume, palatal shell area, or palatal projection area directly after expansion or at 1 year and 5 years after expansion, which implies that the two devices gave rise to the same immediate and long-term outcomes.     

儿科治疗药物监测技术的研究进展

治疗药物监测是临床药学工作的重要内容,在儿科临床医疗中发挥着重要的作用。近年来伴随着仪器科学的进步,大量新技术、新方法涌入到该领域中,使得监测品种逐渐增多,监测质量不断提高,极大地促进了治疗药物监测工作的发展。文中通过查阅国内外近期相关文献,考察儿科常见几种治疗药物监测技术的最新进展,并结合本院实践经验提出意见。     

均匀设计法优选丁香叶提取工艺

目的优选丁香叶的提取工艺,为炎立消片的生产工艺和剂型改革提供理论支持。方法用均匀设计法安排试验,以提取液中原儿茶酸的含量为检测指标,考察乙醇浓度、溶剂用量、提取时间对提取率的影响,优选合理提取工艺。结果丁香叶采用8倍量90％乙醇提取60min,可将丁香叶的原儿茶酸基本提出。结论优选的提取工艺稳定、可靠。     

中药（复方）成分提取动力学数学模型的建立及对六味地黄汤梓醇的验证试验

目的建立封闭体系中药复方成分溶出动力学数学模型，并对六味地黄汤中有效成分梓醇的提取动力学参数进行研究与分析。方法将数学建模方法应用于中药提取过程的研究中，根据提取原理、Fick定律建立中药提取过程的数学模型，对数学模型进行拟合和参数分析。可求得函数表达式，运用该模型研究六味地黄汤中梓醇的动力学参数。结果建立了包舍三项e的指数形式的成分溶出浓度解析厦各参数分析方法。结论封闭可溶中药复方扩散体系的成分溶出符合线性动力学数学模型，各参数可根据溶出浓度表达式关系计算得到。