中药材肉桂的X衍射Fourier谱分析

为鉴别中药材肉桂与川桂、少花桂和其伪品三钻风，本文应用粉末Ｘ射线衍射分析技术测定了１０个样品的Ｆｏｕｒｉｅｒ（付里叶）图谱。分析结果表明１０个样品各自具有表现其所含化学成分总体特征的衍射图谱。并构成衍射模糊图形（定性）与特征标记峰（定量）的图谱特征。根据这些特征达到在衍射空间鉴别中药材的目的。     

HPLC法测定葛根炮制品中葛根素的含量

目的:研究葛根炮制前后有效成分的变化。方法:采用HPLC法,C₁₈柱,流动相为甲醇水氯仿(25∶75∶1),检测波长为250nm。结果:除炒炭对葛根素破坏严重外,其他炮制品中葛根素的含量均比生品高。结论:炮制对葛根中葛根素含量影响较大。     

乳腺癌肿瘤血管生成的临床病理学意义

肿瘤血管生成（ＴｕｍｏｒＡｎｇｉｏｇｅｎｅｓｉｓ，ＴＡ）是目前肿瘤研究的重要课题，其研究目的在于探讨ＴＡ的预后价值以及预测肿瘤对抗血管生成药物的反应。本文应用第八因子相关抗原多克隆抗体对６５例乳腺浸润性导管癌（以下简称乳腺癌）进行了微血管的定量研究。结果显示：腋下淋巴结阳性病例组织的微血管密度（ＭｉｃｒｏｖｅｓｓｅｌＤｅｎｓｉｔｙ，ＭＶＤ）（１２９．７±４４．９）明显高于腋下淋巴结阴性（ＮｏｄｅＮｅｇａｔｉｖｅＢｒｅａｓｔＣａｎｃｅｒ，ＮＮＢＣ）病例组的ＭＶＤ（７９．６±３３．６），差异呈极显著性（Ｐ＜０．００１）；发生术后复发及远处转移的病例的ＭＶＤ均值高达１４５．３；以上结果提示乳腺癌ＭＶＤ与肿瘤转移、复发均密切相关。我们认为乳腺癌ＭＶＤ可反映其血供状态，ＭＶＤ高的病例微血管丰富，肿瘤组织生长快，癌细胞易于进入微循环而发生转移     

Family history of cancer and autoimmune disease and risk of leukemia in infancy: a report from the Children's Cancer Group (United States and Canada)

Objectives: As there are some suggestions that a family history of cancer or autoimmune disease might be associated with an increased risk of leukemia in children, we explored this possibility using data from a matched case-control study conducted by the Children's Cancer Group. Methods: We compared the family history of cancer and autoimmune diseases of 302 infant leukemia cases (diagnosed within the first 18 months of life) with that of 668 individually matched controls in the United States and Canada. Results: Although not significant, cancer history in parents was found to be associated with an elevated risk of infant leukemia (odds ratio [OR] = 1.4, 95 percent confidence interval [CI] = 0.6-3.6), predominantly acute myeloid leukemia (AML) (OR = 2.2, CI = 0.6-9.0). Cancer history among second-degree relatives was also related to a non-significantly elevated risk of AML. Family history of autoimmune diseases, on the other hand, was generally not found to be related to the risk of infant leukemia. Conclusion: This study provided no strong evidence that family history of cancer or autoimmune disease is a major risk factor for infant leukemia.     

Antivirus effect of polysaccharides of brewer yeast in vitro]

The antivirus effect of polysaccharides of brewer yeast from yeast mud on 13 kinds of viruses including DNA and RNA virus along with their mechanisms were studied. The result showed that this effect was remarkable on the infections with poliovirus III, adenovirus III, ECHO6 virus, enterovirus 71, vesicular stomatitis virus, herpesvirus I, II, coxsackie A16 virus and coxsackie B3 virus. The polysaccharides of brewer yeast could also inhibit the development of cytopathic effect(CPE) and protect cultural cells from being infected with the above viruses.     

加味参附汤对吗啡依赖戒断小鼠免疫功能的影响

吗啡依赖小鼠自然戒断后可见脾脏、胸腺萎缩，巨噬细胞Fc受体阳性百分率及吞噬功能、外周血T淋巴细胞总数、T淋巴细胞对PHA的殖反应、脾T淋巴细胞CD4^ 百分率及CD4^ /CD8^ 比值均明显下降；吗啡继续成瘾而未戒断的小鼠的以上指标进一步损伤；加味参附汤（MSFD）治疗小鼠以上指标均有不同程度的恢复；而丁丙诺啡治疗后免疫功能状态仍低于或相当于自然戒断时。提示MSFD能促进吗啡依赖戒断小鼠损伤的免疫功能的恢复，这一作用可能与其对神经内分泌系统的调节有关。     

重组人催乳素(rhPRL)在huPBL/SCID嵌合模型中对人直肠癌的治疗效应及免疫机理初探

通过体内实验进一步证实rhPRL对机体免疫功能的调节作用,以及用于过继细胞免疫治疗的可能性。我们选用CB17 SCID纯系小鼠,腹腔注入人结肠腺癌细胞(HT29),2小时后腹腔注入尼龙毛纯化的人淋巴细胞(T/NK细胞),同时开始进行rhPRL治疗,并设HBSS对照和rhIL-2治疗对照组。结果表明,rhPRL在体内外均无直接抗癌效应,反而可促进肿瘤生长。当SCID荷瘤鼠同时移植入人的T/NK细胞时出rhPRL可明显提高T/NK细胞的抗癌效果,生存期明显延长(P<0.05)。平均生存期由70.4天延至112.1天,在对照组全部死亡时(d105),rhPRL治疗组有60％存活,且在实验终止时(>160天)仍有40％存活。分析其抗癌机理发现,rhPRL体外可直接促进人T/NK细胞增殖,其分泌上清可抑制肿瘤生长,同时发现人T/NK细胞与HT29共育4小时中rhPRL亦可直接促进杀伤活性。     

大鼠小肠粘膜淋巴管的图像分析

大鼠腹主动脉注入１％墨汁硝酸银溶液，可同时显示小肠淋巴管和微血管，浆膜下注入１０％ＡＢＳ丁酮溶液可制成小肠粘膜淋巴管的铸型标本，用光镜和ＳＥＭ观察，利用图像分析仪测量了肠粘膜淋巴管的数量、管径、长度等。小肠粘膜初始淋巴管数为２７５±５２／ｍｍ２，管径为３４９±４０μｍ，长度为２０８５μｍ，初始后淋巴管管径为３４９＋４０μｍ，长度１０７４μｍ，提出了区分初始淋巴管和初始后淋巴管的依据，获得了有关汇合淋巴管、粘膜下层淋巴管网数、园形因子等数据，小肠不同区段如十二指肠、空肠、回肠、淋巴管的上述数据有某些差别。我们的研究结果加深了对大鼠小肠淋巴管的分布、走行和形态等的认识     

桂枝汤及方中单味药对体温双向调节作用的研究

观察组成桂枝汤的５个单味药对体温的影响，其中桂枝、芍药、炙甘草对体温呈现不同程度的双向调节作用；生姜有单向促进体温回升作用；大枣具有一定的单向解热作用。     

中药复方血清药理研究方法学探讨-I

以桂枝汤的体外抗病毒实验为手段，对家兔含药血清制备时不同的给药次数和采血时间进行了探讨。结果显示：家兔单次口饲给药后１ｈ、２ｈ、３ｈ所采集的含药血清无抑制副注感病毒毒细胞病变的作用；每日１次口饲给药，连续３ｄ，末次给药后２ｈ的血清，有明显抑制副流感毒致细胞病变的作用。