Naphthaquinones of Diospyros batocana

Root bark of West African tree DIOSPYROS BATOCANA H IERN, Ebenaceae, was examined. On the basis of chromatographic and spectral analysis it was shown to contain the naphtaquinones 7-methyljuglone, 2-methylnaphthazarin, biramentaceone, rotundiquinone, mamegakinone, diospyrin, diosquinone, isodiospyrin and batocanone. This last compound proved to be the (-)-enantiomer of isodiospyrin-2', 3'-epoxide. The probable existence of beta-dihydrodiospyrin, of a batocanone isomer and of an isodiospyrin diepoxide in this material is mentioned. The partial synthesis of two isomeric isodiospyrin di-epoxides is described.     

The most frequent neurologic disturbances. A contribution to the definition of topics for the programmatic content to the program of neurology in medical graduation

INTRODUCTION: Knowledge accumulation is overfilling the thematic content of medical graduation. Medical Schools must be alert to define a minimal content related with the most frequent disturbs. We intent to suggest topics for the minimal content, to the program of Neurology in medical graduation. METHOD: 1. To identify the places where young doctors are working outside the School Hospital (SH): we analysed the answers of the letters sent to 6415 resident - doctors (RD) in S?o Paulo's State and we made personal interview with 201 RD. 2. To verify the most frequent neuropsychiatric disturbs (ND) in the population: we made the analysis of the patient's diagnostic records in emergency room of three institutions: Municipal of Taubaté-SP, Municipal of S?o José dos Campos-SP and Faculty of Medicine of S?o Paulo Santa Casa de Misericórdia. RESULTS: 1. The RD are young and, outside the SH, they work in other emergency services. 2. The most frequent diagnosis in institutions were listed: alcoholism, cerebrovascular disease, coma, cranial trauma, dementia, dizziness, epilepsy, facial paralysis, faint, headache, hemiplegia or paraplegia, meningitis, others paralysis, periferical neuropathy and psychiatric disorders. CONCLUSIONS: Those diagnostics most frequent are relevant topics of the programmatic content to the program of Neurology in medical graduation.     

氟西汀市场透析

目的:了解氟西汀的市场现状及发展趋势。方法:对氟西汀国内、外生产和销售情况进行分析。结果与结论:氟西汀市场潜力巨大,我国制药企业应密切关注市场变化,以求进一步发展。     

奥美拉唑肠溶片生物利用度测定

目的　考察奥美拉唑肠溶片人体相对生物利用度及生物等效性。方法　 10名健康男性志愿者 ,采用交叉给药方案 ,分别单剂量po 2 0mg国产奥美拉唑肠溶片和进口奥美拉唑胶囊 ,用高效液相色谱紫外检测法测定血浆中奥美拉唑浓度 ,进行人体相对生物利用度和生物等效性评价。结果　单次po 2 0mg国产奥美拉唑肠溶片和进口奥美拉唑胶囊后 ,达峰时间tmax分别为 3 0 1± 0 5 2h和 2 6 2± 0 76h ;峰值血药浓度Cmax分别为 5 4 3 5± 2 14 9ng·ml-1和 5 2 0 9± 16 7 8ng·ml-1;药时曲线下面积AUC0→∞ 分别为 10 2 3 0± 5 4 2 5h·ng·ml-1和 10 71 2± 5 73 8h·ng·ml-1。结论　国产奥美拉唑肠溶片的相对生物利用度为96 4 0 % ,主要参数的双单侧t检验 ,结果显示两种制剂为生物等效制剂。     

联苯双脂滴丸制备工艺的研究

目的　对滴丸剂型的制备工艺进行研究。方法与结果　通过对联苯双脂滴丸制备过程的试验 ,确定了联苯双脂滴丸的重量、处方组成与制备工艺 ,讨论了影响滴丸成形、丸的圆整度和丸重差异的因素。结论　该制备工艺适用于滴丸剂型的工业化生产。     

紫外分光光度法测定吉非罗齐含量

目的建立用紫外分光光度法到定吉非罗齐的含量；方法以乙醇为溶剂，采用分光光度法，在276nm到定吉非罗齐含量；结果 吉非罗齐在0—219．2μg／m1范围内，其吸收度呈良好的线性，R＝0．9999，平均回收率100．1％，RSD为0．36％。结论 本法简便快速，结果与药典法基本一致。     

钴辐照对板蓝根抗内毒素作用的影响

目的：研究Co辐射灭菌法对板蓝根抗内毒素作用的影响。方法：本文用3个剂量的Co射线辐照板蓝根药材，并用鲎试剂法与家兔法测定辐照前后板蓝根内毒素作用的变化，结果表明Co辐照对板蓝根抗内毒素作用的影响与辐照剂量有关，10Kgy及以下剂量的辐照不会造成明显影响.     

青霉素过滤工艺改进

目的：为了进一步解决青霉素生产过过程中的过滤问题和进一步扩大产量，克服原设备的缺陷。方法：我们采用了目前国内制药企业广泛使用的鼓式过滤机过滤技术及利用热交换器进行热量交换以达到生产工艺的要求同时改进相应工艺。结果：达到降低生产成本、扩大生产产量、加快生产速度，提高生产产率的结果。结论：通过实际生产证明完全符合实际生产的需要。本文就目前青霉素过滤过程中的几个关键环节作简要讨论。     

HPLC法测定苦参素注射液中氧化苦参碱的含量

目的：建立HPLC法测定苦参素注射液中氧化苦参碱的含量。方法：采用C8柱为固定相；乙腈：1％H3PO4(9：220)为流动相；检测波长220nm；柱温为室温。结果：线性范围0．0162～0.1293mg／ml。R=0．9990。此方法分离效果好，操作简便，快捷，重现性好，可作为质控方法。