大肠癌巨─微血管构筑的临床研究

为了探讨大肠癌和其间质血管的关系，我们研究了48例大肠癌标本不同部位的巨─-微血管构筑。方法：用癌瘤标本造影摄X线片、立体显微镜和微机图象定量分析。结果显示：癌中心血管稀疏或为无血管的坏死区及血管破坏；癌远近端瘤组织内血管增多增粗，畸形及紊乱；其血管定量参数与癌中心和癌远近端肠粘膜相比有显著差异（P＜O．05，P＜0．01）。结论：①大肠癌的发生发展依赖于血管形成和细胞增殖。②在理论上解释了大肠癌的临床病理过程。③大肠癌的恶性程度与其血管密度间似有负相关的趋势。④探讨了其临床应用价值。     

LOSS OF HETEROZYGOSITY ON CHROMOSOME 17p13.3 IN OVARIAN CANCER AND CERVICAL CANCER

ＣａｒｃｉｎｏｇｅｎｅｓｉｓｃｏｎｓｉｓｔｓｏｆｍｕｌｔｉｐｌｅｑｕａｌｉｔａｔｉｖｅｌｙｄｉｆｆｅｒｅｎｔｓｔｅｐｓｉｎｗｈｉｃｈａｃｃｕｍｍｕｌａｔｉｏｎｏｆＤＮＡａｌｔｅｒａｔｉｏｎｏｃｕｒｓａｎｄｃｒｉｔｉｃａｌｅｖｅｎｔｓ，ｉｎｖｏｌｖｉ...     

中药苦参汤中氧化苦参碱的含量测定

将苦参汤浸膏经索氏提取，硅胶预滤柱精制后，用ＴＬＣ－比色法测定其中氧化苦参碱的含量，测定波长λ＝４１８ｎｍ，回归方程Ｃ＝１５．８８４５ａ－０．０７５７８，ｒ＝０．９９９２，ｎ＝３。     

中药灯盏细辛化学成分的研究(Ⅰ)

研究灯盏细辛「Ｅｒｉｇｅｒｏｎ ｂｒｅｖｉｓｃａｐｕｓ（Ｖａｔ．）Ｈａｎｄ．－Ｍａｚｚ．」的化学成分。方法采用柱层析对灯盏细的苯溶解部位中的化学成分进行分离和纯化,应用理化党数和光谱分析（ＩＲ,ＭＳ,＾１Ｈ－ＮＭＲ,＾１３）鉴定其结构。结果：得到６个单体化合物,结构分别为木栓酮（ｆｒｉｅｄｅｌｉｎ,Ⅰ）木栓烷（ｆｒｉｅｄｅｌａｎｅ,Ⅱ）,木栓醇（ｆｒｉｅｄｅｌｉｎｏｌ,Ⅲ）,表木栓醇（ｅｐｉｆｒｉ     

救坤丹治疗子宫发育不良药理学研究

ＪＫＤ对醋酸致小鼠疼痛反应和缩宫素致小鼠痛经均有明显抑制作用，能使性未成熟小鼠子宫湿重和子宫系数增加。ＪＫＤ由阴道给药吸收，作用于子宫，可以通过镇药、增加子宫肌肉发育发挥治疗作用，即如中医认为有“补肾气，填精血，化寒积，破瘀血”之功效     

Estrogen replacement therapy for treatment of mild to moderate Alzheimer disease: a randomized controlled trial. Alzheimer's Disease Cooperative Study

CONTEXT: Several reports from small clinical trials have suggested that estrogen replacement therapy may be useful for the treatment of Alzheimer disease (AD) in women. OBJECTIVE: To determine whether estrogen replacement therapy affects global, cognitive, or functional decline in women with mild to moderate AD. DESIGN: The Alzheimer's Disease Cooperative Study, a randomized, double-blind, placebo-controlled clinical trial conducted between October 1995 and January 1999. SETTING: Thirty-two study sites in the United States. PARTICIPANTS: A total of 120 women with mild to moderate AD and a Mini-Mental State Examination score between 12 and 28 who had had a hysterectomy. INTERVENTIONS: Participants were randomized to estrogen, 0.625 mg/d (n = 42), or 1.25 mg/d (n = 39), or to identically appearing placebo (n = 39). One subject withdrew after randomization but before receiving medication; 97 subjects completed the trial. MAIN OUTCOME MEASURES: The primary outcome measure was change on the Clinical Global Impression of Change (CGIC) 7-point scale, analyzed by intent to treat; secondary outcome measures included other global measures as well as measures of mood, specific cognitive domains (memory, attention, and language), motor function, and activities of daily living; compared by the combined estrogen groups vs the placebo group at 2, 6, 12, and 15 months of follow-up. RESULTS: The CGIC score for estrogen vs placebo was 5.1 vs 5.0 (P = .43); 80% of participants taking estrogen vs 74% of participants taking placebo worsened (P = .48). Secondary outcome measures also showed no significant differences, with the exception of the Clinical Dementia Rating Scale, which suggested worsening among patients taking estrogen (mean posttreatment change in score for estrogen, 0.5 vs 0.2 for placebo; P = .01). CONCLUSIONS: Estrogen replacement therapy for 1 year did not slow disease progression nor did it improve global, cognitive, or functional outcomes in women with mild to moderate AD. The study does not support the role of estrogen for the treatment of this disease. The potential role of estrogen in the prevention of AD, however, requires further research.     

肿瘤坏死因子、更生霉素和干扰素-γ联合应用对人卵巢癌裸鼠模型的协同作用

目的：研究联合应用肿瘤坏死因子（TNF）、干扰素－γ（IFN－γ）和更生霉素（KSM）对人卵巢癌裸鼠模型的协同作用。方法：将荷瘤裸鼠随机分成4组，分别用生理盐水、KSM、TNF＋IFN－γ、KSM＋TNF＋IFN－γ处理，观察肿瘤生长情况。结果：各组肿瘤相对体积比较，KSM组和KSM＋TNF＋IFN－γ组与对照组比较，差异有显著性（P＜0．05和P＜0．01）；TNF＋IFN－γ组与对照组比较，差异无显著性（P＞0．05），而KSM＋TNF＋IFN－γ组与KSM组比较，差异有显著性（P＜0．05）。结论：KSM与TNF、IFN－γ联合应用有协同抗卵巢癌细胞系3AO的作用，为临床应用提供了理论依据。     

pH值影响细菌内毒素测定的实验室研究

 目的：研究样品pH对细菌内毒素测定的影响。方法：应用动态浊度法定量测定样品中细菌内毒素的含量；由细菌内毒素参考标准品(RSE)制成两种浓度的稀释液，在14个pH量级上，与国内外两种鲎试剂(TAL,Tal)反应；观察每组平均回收率。结果：pH梯度上，两种鲎试剂回收曲线都呈现三个反应高峰，分别为pH5.20,pH7.83/pH6.23和pH10.55。样品pH在6～8间实验结果稳定，4λ阳性对照的平均回收率为76.5%～115.9%和85.8%～99.8%；当样品pH值≤3或≥12时，细菌内毒素试验受到抑制，平均回收率≤56.8%。结论：细菌内毒素试验中应该调节检品pH；使用TAL时，检品pH应预调在(6.5～7.5)为好；使用LAL时，检品pH应预调在(6.2±0.1)或(6.7～7.8)为好。     

RP-HPLC用于紫苏油及其习用品白苏油、野苏油的鉴别

本文采用RP－HPLC方法对紫苏油及其习用品白苏油、野苏油甘油酯进行了定性定量分析。利用HPLC分析油脂也为中药材真伪鉴别提供了一条有效途径。     

括金板的生药学研究

报道民间中草药括金板Euphorbiachrysocoma根和根茎的生药性状、横切面组织构造及粉末特征、薄层色谱法和高效液相色谱法鉴别研究结果。