灵芝治疗毒蕈中毒疗效分析

目的探讨灵芝对毒蕈中毒的治疗效果．方法将84例毒蕈中毒病人随机分为实验组（42例）和对照组（42例）,对照组给予常规治疗,实验组在常规治疗基础上加用灵芝煎液口服,比较两组疗效及脏器损害情况．结果实验组疗效明显好于对照组（P〈0．05）,实验组住院天数明显缩短,脏器损害程度减轻,两组肝、肾功能比较,实验组在2～4d达到高峰,对照组则在5—7d后才达到高峰．比较两组各项指标,实验组明显低于对照组,差异有统计学意义（P〈0．05）．结论灵芝治疗毒蕈中毒疗效明显,可有效降低死亡率、减少住院天数,减轻病人经济负担．     

反相高效液相色谱法测定灵芝子实体中灵芝酸A的含量

目的 建立测定灵芝子实体中灵芝酸A含量的反相高效液相色谱法(RP-HPLC)测定方法.方法 采用Promosil-C18(250 mm×4.6 mm,5μm)色谱柱,以乙腈-体积分数0.03％甲酸水溶液为流动相梯度洗脱,流速为0.8 ml/min,检测波长254 nm.结果 灵芝酸A的质量浓度在1.1～11μg范围内与...     

两个厂家灵芝孢子粉质量比较

目的对拟用于医院制剂研发的两个厂家的灵芝孢子粉进行质量比较,为购买优质灵芝孢子粉原料药提供依据。方法依据2010年版《中国药典(一部)》并参考相关文献中有关中药灵芝的检测方法,对北京A厂和山东B厂两厂家灵芝孢子粉的破壁率、水分、灰分、多糖进行比较。结果两厂家供试品的薄层色谱图在波长365 nm处均与灵芝对照药材相同位置有相同颜色的荧光斑点;北京A厂的灵芝孢子破壁率为90%,山东B厂的破壁率为97%,二者含水量、多糖均符合药典规定,但北京A厂灵芝孢子粉的总灰分含量为3.37%,超出药典规定的含量限度。结论山东B厂灵芝孢子粉的质量较优,可作为医院制剂灵芝孢子粉胶囊研制的原料药。     

基于双向固体发酵技术的灵青菌质发酵动态变化研究

目的:确定灵芝菌固体发酵青木香的发酵终点,为灵青菌质的制备工艺提供实验依据。方法:运用双向固体发酵技术,青木香与灵芝菌共同发酵后,定期取样,测定基质转化率,并分别采用反相高效液相色谱法和紫外分光光度法测定发酵产物灵青菌质中马兜铃酸Ⅰ和总马兜铃酸的含量。结果:基质转化率、样品中马兜铃酸Ⅰ和总马兜铃酸的含量随发酵时间呈现动态变化:发酵至第28天灵青菌质的基质转化率小幅下降,第28~35天相对稳定,此后又大幅下降;HPLC法测定结果表明,0~28 d马兜铃酸Ⅰ含量基本无变化,28 d后含量开始明显下降;UV法测定结果表明,0~28 d总马兜铃酸的含量保持下降的趋势,28~35 d含量基本保持恒定,35 d后开始上升。结论:灵芝发酵青木香药材的发酵终点基本可判定为第28~35天。双向固体发酵技术可有效地应用于青木香的减毒。     

灵芝多糖的研究进展

灵芝多糖是灵芝的主要活性成分之一,具有抗肿瘤、抗氧化、抗衰老和降血糖等生物活性,对近年来研究灵芝多糖的超声法、微波法、复合酶法等提取方法和径向流色谱、柱色谱联用等分离纯化方法,含量测定及其在抗肿瘤和抗氧化等方面的药理活性进行综述,为灵芝多糖的进一步开发利用提供依据。     

灵芝多糖对小鼠黑素瘤细胞的体外抑制作用

目的：探讨灵芝多糖在体外对小鼠黑素瘤B16F10细胞株的抑制作用。方法：以小鼠黑素瘤B16F10细胞株为研究对象,用MTT法检测灵芝多糖对肿瘤细胞增殖的影响,流式细胞仪检测细胞毒作用。结果：经灵芝多糖作用后黑素瘤B16F10细胞增殖活性受抑,细胞死亡增多。结论：灵芝多糖可抑制B16F10细胞的增殖,促进细胞死亡。     

灵芝活性多糖的提取工艺研究

目的确立水提醇沉法与超声提取法相结合提取灵芝活性多糖的最佳工艺。方法以脾细胞代谢MTT活力为评价指标,采用正交试验对超声时间、水提温度和水提时间等因素进行考察,寻求最佳的提取工艺。结果各因素对灵芝多糖脾细胞代谢MTT活力的影响大小排列为：超声时间〉水提温度〉水提时间,超声时间对灵芝多糖活性影响显著。提取最佳工艺为：超声提取时间20min,水提取温度80℃,水提取时间2h。结论本工艺为提取活性灵芝多糖提供了一定的参考。     

Characterization and immunostimulatory activity of a polysaccharide from the spores of Ganoderma lucidum

Spores of Ganoderma lucidum contain a large amount of bioactive substances and have a higher bioactivity than the fruit bodies of G. lucidum. However, ingredients from spores are less studied due to the difficulties in collecting the spores and breaking the rigid shell. In this study, a water-soluble polysaccharide named GSG was extracted from the spores of G. lucidum. GSG is characterized to be a branched glucan that contains several different kinds of linkages. It was an effective inducer of MAPKs- and Syk-dependent TNF-α and IL-6 secretion in murine resident peritoneal macrophages. Dectin-1 could recognize GSG and partially mediate its biological activities. Additionally, in vivo administration of GSG potentiated the Con A-induced proliferative response of splenocytes and induced anti-tumor activity against Lewis lung cancer in mice. Therefore, these results suggest that GSG is an effective immunomodulator and may be a promising adjuvant remedy for anti-tumor therapies.     

破壁灵芝孢子粉对小鼠T细胞淋巴瘤细胞抑制作用

目的 研究灵芝孢子粉在体内、外对小鼠T细胞淋巴瘤细胞生长的抑制作用.方法 运用噻唑蓝（MTT）法研究灵芝孢子粉在体外对EL-4细胞的抑制作用;建立MNU诱导小鼠胸腺T细胞淋巴瘤的裸鼠移植瘤模型,利用裸鼠移植瘤研究灵芝孢子粉对胸腺T细胞淋巴瘤细胞的抑制作用,HE染色观察淋巴瘤组织结构的改变.结果 灵芝孢子粉对EL-4细胞的IC50值随作用时间增加而减小,72 h达到最低,为4.76 g/L.体内抑瘤试验显示,灵芝孢子粉剂量为4 g/kg时,抑制率为45.8％,镜下观察,灵芝孢子粉高剂量治疗组肿瘤坏死区域较大,核碎屑、细胞固缩较多.结论 高浓度及高剂量的灵芝孢子粉具有抑制肿瘤细胞生长的作用.     

Ergosta-7,22-diene-2β,3α,9α-triol from the fruit bodies of Ganoderma lucidum induces apoptosis in human myelocytic HL-60 cells

Ganoderma lucidum is known as a medicinal mushroom used in traditional medicine. In our study, the cytotoxic activities of 17 compounds (1-17) isolated from the fruiting bodies of G. lucidum were investigated. Among them, ergosta-7,22-diene-2β,3α,9α-triol (EGDT) induced apoptosis in HL-60 human premyelocytic leukemia cells. EGDT activated the apoptotic process, including DNA fragmentation and caspase-3 activity. In immunoblotting analysis, treatment with EGDT resulted in the cleavage of procaspase-3 and poly(ADP-ribose) polymerase (PARP) into active forms. In the in vivo study, the administration (i.p.) of EGDT to Lewis lung carcinoma (LLC)-inoculated mice evidenced a significant inhibition of tumor growth. These results indicate that EGDT was one of the apoptotic constituents of G. lucidum, and might be an antitumor agent.