竹节人参对脑缺血大鼠兴奋性氨基酸的影响

目的:探讨富硒竹节人参对大鼠脑缺血及其再灌注后脑组织兴奋性氨基酸(EAA)含量的影响.方法:将大鼠用富硒竹节人参处理后,建立大鼠脑缺血模型,观察富硒竹节人参对大鼠脑组织中的谷氨酸(Glu)、天冬氨酸(Asp)、γ-氨基丁酸(GABA)、甘氨酸(Gly)的影响.结果:富硒竹节人参对正常大鼠脑组织EAA含量无影响,可使脑缺血及其再灌注损伤大鼠脑组织Glu、Asp含量降低,对GABA、Gly无明显影响.结论:富硒竹节人参可对抗缺血性脑损伤,防止缺血时EAA的升高,从而发挥对脑损伤的保护作用.     

Incidental heterotopic pregnancy demonstrated on magnetic resonance imaging

We report a case of an assisted pregnancy in an asymptomatic woman who was found to have an extrauterine mass on ultrasound and MRI. This complex mass had equivocal imaging features and was found to be a ruptured ovarian ectopic pregnancy at surgery. This case illustrates that vigilance is required regarding the possibility of coexisting ectopic and intrauterine pregnancy following assisted conception, even in entirely asymptomatic cases.     

HPLC法测定喜生粒中栀子苷的含量

目的:建立高效液相色谱法测定喜生粒中栀子苷的含量.方法:采用Analytical Technology(AT)C18柱(200mm×4.6mm,5 μm);以乙腈-水(15:85)为流动相;流速为1ml·min-;检测波长为238 nm;室温操作.结果:栀子苷在10.96～109.6μg·ml-1的浓度范围内呈线性关系,r=0.999 9,平均回收率为99.5%,RSD为1.8%.结论:该法简便、准确可靠,可用于该药的质量控制.     

HPLC法测定小儿咳喘灵颗粒中绿原酸的含量

目的:建立高效液相色谱法测定小儿咳喘灵颗粒中绿原酸的含量.方法:采用Analytical Technology(AT)C18柱(200mm×4.6 mm,5μm);以乙腈-0.2%磷酸溶液(13:87)为流动相;检测波长为327 nm;流速为1 ml·min-1;室温操作.结果:绿原酸在0.083～0.83 μg的浓度范围内呈线性关系,r=0.999 9,平均回收率为99.2%,RSD为0.7%.结论:该法简便、准确可靠,可用于该药的质量控制.     

国产与进口托烷司琼胶囊的人体生物等效性

目的:评价国产和进口托烷司琼胶囊的生物等效性。方法:采用双周期两制剂交叉试验设计,用LC-MS/MS法对国产和进口托烷司琼胶囊在20名中国健康男性受试者中的血药浓度进行测定。药动学参数用ANOVA处理。结果:国产与进口托烷司琼胶囊的AUC0-→t分别为:(543.61±415.55),(547.04±455.59)μg·h·L-1;AUC0→∞分别为(573.30±439.11),(591.77±513.15)μg·h·L-1;cmax为分别(39.13±14.45),(37.44±14.30)μg·L-1;tmax分别为(1.61±0.71),(1.85±0.79)h;T1／2分别为(9.69±4.81),(9.77±5.51)h。国产托烷司琼胶囊的相对生物利用度为(106.47±24.07)％(n=20)。2组参数cmax,AUC0→t经对数转换后,行方差分析和双单侧t检验,均未见统计学意义。结论:托烷司琼国产的制剂与进口制剂具有生物等效性。     

Müller细胞在糖尿病视网膜病变中的研究进展

Müller细胞是脊椎动物视网膜最主要的神经胶质细胞,从内界膜到外界膜纵贯视网膜全层,参与构成血-视网膜屏障,积极参与视网膜发育并通过许多细胞内机制促进和维持视网膜稳态。Müller细胞在糖尿病视网膜病变的发生发展过程中扮演重要角色,其病理生理改变仍有待深入研究。本文就Müller细胞在糖尿病视网膜病变中的病理生理改变以及近年研究进展作一综述。     

南京市某区医联体项目化建设的实践与思考

医联体项目化建设是近年来国内出现的一种新型医联体管理模式。介绍了南京市某区开展的医联体项目化建设的经验,包括实施了以项目为载体、以分工为基础、以政府为主导的3个方面的主要措施,并对医联体项目化建设的成效进行分析,提出了4条优化建议,即加强顶层设计、平衡动力机制、强化人才建设、提升信息化水平。     

A systematic review of the efficacy of donepezil hydrochloride combined with nimodipine on treating vascular dementia

Background:Vascular dementia (VaD) is a comprehensive syndrome related to the damage of cognitive function and various cerebral vascular illnesses. VaD is also generally recognized as the second most common type of dementia after Alzheimer disease, contributing to 30% of the dementia population in Asia and developing countries. The ability of donepezil hydrochloride and nimodipine had been respectively proven in improving cognitive function in vascular dementia. However, whether the combined application of both drugs contribute to better efficacy remains as a research hotspot. Studies had shown definite satisfactory result with such combination, however evidence-based evaluation of the efficacy is still lacking. Therefore, meta-analysis is employed in this study to evaluate the efficacy and safety of using donepezil hydrochloride combined with nimodipine in treating VaD to provide references for clinical treatments. The efficacy of donepezil hydrochloride combined with nimodipine on treating vascular dementia is systematically reviewed to provide evidence-based references for clinical applications.Methods:Both Chinese and English databases were searched from the start till August, 2020 for any RCT regarding the combined use of the 2 drugs in treating vascular dementia. Two investigators would later evaluate and screened out research and data based on an improved Jaded scale. Software Rev Man 5.3.0 was employed to carry out meta-analysis on clinical effificacy, mini-mental state examination (MMSE) ratings, activity of daily living (ADL) ratings, and clinical dementia scale (CDR) ratings.Results:Donepezil hydrochloride combined with nimodipine had demonstrated satisfactory efficacy on the treatment of vascular dementia. Improvements were namely spotted on MMSE scale, ADL scale, and CDR scale, with the utmost efficacy by 12 weeks after intervention.Conclusions:Donepezil hydrochloride combined with nimodipine had good efficacy in the treatment of patients with vascular dementia, mainly in terms of improving the Simple MMSE scores, the ability to use daily living scale (ADL) scores and the CDR, and the best results were obtained after 12 weeks of intervention. Such conclusion should be cautiously evaluated.     

椎基底动脉延长扩张症(附4例报道)

目的 探讨椎基底动脉延长扩张症的临床表现、影像特征和治疗措施.方法 报道4例椎基底动脉延长扩张症病例,结合文献分析该病的病因、临床表现和影像学特征.结果 椎基底动脉延长扩张症是一种少见的血管性疾病,临床表现复杂多样,确诊有赖于影像检查,目前尚无针对性治疗措施.结论 应根据不同临床表现和影像学特征采用相应的治疗措施.