Aggregation inhibitory activity of minor acetophenones from Paeonia species

Two minor acetophenones, 2,5-dihydroxy-4-methoxy-acetophenone (2) and 2,5-dihydroxy-4-methylacetophenone (7) from Paeonia species were found to selectively inhibit the aggregation of rabbit platelets induced by arachidonic acid. They were more potent than the major compound, paeonol (1), and 7 also inhibited the formation of TXA2 and PGD2 from arachidonic acid.     

中药川芎中无机阴离子和有机酸成分的研究

目的：研究中药川芎中有机酸和无机阴离子的同时分析方法。方法：采用非抑制型阴离子交换色谱法,色谱柱为ＳｈｉｍｐａｃｋＩＣＡ１,流动相为０８ｍｍｏｌ·Ｌ－１邻苯二甲酸氢钾。结果：川芎提取液中３种有机酸和３种无机阴离子得到了较好的分离。结论：该方法分析速度快,准确,灵敏度高。     

口服Ⅱ号避孕药对血小板功能及血液凝固的影响

为了解口服Ⅱ号避孕药对血小板功能及血液凝固性的影响,本文对65名连续服药妇女进行了研究。她们的年龄为27～45(平均36.5)岁。服药期限1～17(平均6.7)年。测定项目有纤维蛋白原,血小板粘附率,血小板聚集率,Ⅷ因子相关抗原,抗凝血酶活力等。20例未服药妇女作对照。测定结果服药组血小板粘附率、聚集率及纤维蛋白原比对照组明显增高(P<0.001)。Ⅷ因子相关抗原略增高,但无统计学意义。抗凝血酶活力显著降低(P<0.001)。本文就急性心肌梗塞及血栓栓塞的潜在可能性等问题进行了讨论,并对预防此类并发症提出了建议。     

Syntheses and in vitro evaluation of water-soluble "cationic metalloporphyrin-ellipticine" molecules having a high affinity for DNA

The synthesis of hybrid "cationic metalloporphyrin-intercalator" molecules is reported. These molecules are based on 9-methoxyellipticine as intercalator and tris-(4-N-methylpyridiniumyl)metalloporphyrins having a 4-aminophenyl or a 4-hydroxyphenyl group for the attachment of the linker. The effect of the length of linker (7-13 bonds), the chemical nature of the linking group (with a carboxamido or an ether function), the position of amino group between the two parts of hybrid molecules, the number of intercalator moieties (ellipticinium) covalently attached to the metalloporphyrin, and the nature of the central metal atom (Mn, Fe, Zn) on the biological activity of these hybrid molecules were studied. In addition, these molecules have a high affinity for double-stranded DNA (affinity constant of hybrid molecule 9Mn,Me = 2.3 x 10(9) M-1 for poly[d(A-T)] and 2.8 x 10(8) M-1 for poly[d(G-C)] and are cytotoxic against murine leukemia cells L1210 in vitro (IC50 of 9Mn,Me = 0.8 microM). Their cytotoxicities are dependent on the nature of central atom. Iron derivatives are less active than manganese analogues and the corresponding zinc derivatives are nearly inactive despite their same affinity for nucleic acids. These highly water-soluble hybrid molecules could be considered as efficient bleomycin models based on a cationic metalloporphyrin.     

Dr. DING Hong-shan＇s Experience of Tuina in Treating Childhood Cerebral Palsy

My late father Dr. DING Hong-shan was a senior Chinese medical doctor and learnt thumb-massage therapy from his forefathers. In his decades of years of clinical practice, upon the physiological nature of the children‘s tender constitution, he created a “one-hand and three-acupoint Tuina” (the thumb, forefinger and middle finger of one hand simultaneously massaging three acupoints or three meridians) in combination with thumb-massage therapy. It is suitable for childhood limb diseases, especially for infantile cerebral palsy. It is now introduced as follows.     

儿童期单纯肥胖症的行为治疗

为研究适合中国肥胖儿童的行为治疗方案及效果，对２４例（男女各１２例）１３岁单纯肥胖儿童进行３年行为治疗纵向研究。２４名同年龄、性别、年级非肥胖儿童为正常对照组。观测参数有身高、体重、四处皮脂、腰、臀围及其比例、有氧运动能力（最大耐受时间和运动距离）。体育测试成绩包括引体向上、跳远、８００米跑、仰卧起坐，满分为３０分。按运动处方每天运动２小时，每周５天。在医生指导下肥胖儿童写行为分析和行为矫正方案。有关肥胖指标年减少率（男／女）体脂含量为２３％～４２％，肥胖度２．８％～２．１％，腰／臀比２．５％～２．６％，四处皮脂和５．７％女０．８％～１．０％），有氧能力明显进步。体育成绩肥胖干预组３０％达满分，７０％为２７～２９分。肥胖对照组６０％为２０分，３０％为１５～１９分。提示儿童期单纯肥胖症的干预方案应以健康教育和运动处方为基础，行为治疗为核心技术；在家庭日常生活中持续进行，家长、教师、医务人员应共同参与。     

重组人绒毛膜促性腺激素β-亚基对C57BL小鼠免疫应答反应及抗血清特征的研究

采用福氏性剂，对C57BL小鼠进行重组hCGβ和天然hCGβ免疫应签反应的比较研究，结果表明：两者引发的抗血清性质相似，与hCG有较高的亲和力（K（γβ）≈5．86×108／mol／L，Kaβ≈8．18×108／mol／L）；抗血清能有效地抑制（125）I－hCG与睾丸受体的结合，结果提示重组hCGβ抗血清与天然hCGβ抗血清相似，具有中和hCG的生物活性能力，重组hCGβ可作为免疫避孕疫苗的抗原。     

消瘀散消肿止痛作用的实验观察

消瘀散在临床运用中有较好的消肿止痛之功效．为了证实其药理作用，作者用大白鼠建立急性软组织损伤和血肿的实验模型，使用消疾散进行治疗。观察结果表明该药能够有效抑制创伤性无菌性炎症反应，促进血肿吸收，提高实验动物的痛阈值；而且药效随作用时间的延长而逐渐增加。实验结果为该药的消肿止痛作用提供了科学依据。     

小鼠自然老化过程中耳蜗的糖代谢障碍

应用定量组织化学技术分析了ＣＢＡ和Ｃ５７ＢＬ小鼠耳蜗中糖元代谢的改变，发现１８个月和３６个月龄ＣＢＡ小鼠的毛细胞和血管纹中，糖元含量比６周龄ＣＢＡ正常小鼠明显增高，说明在自然老化ＣＢＡ小鼠耳蜗中存在糖元储积现象。